diff --git a/.idea/codeStyles/codeStyleConfig.xml b/.idea/codeStyles/codeStyleConfig.xml
new file mode 100644
index 0000000..d91f848
--- /dev/null
+++ b/.idea/codeStyles/codeStyleConfig.xml
@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="PREFERRED_PROJECT_CODE_STYLE" value="Erik's Code Style" />
+  </state>
+</component>
\ No newline at end of file
diff --git a/app/build.gradle b/app/build.gradle
index d9d97de..1bc6442 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,3 +1,7 @@
+plugins {
+    id "org.jlleitschuh.gradle.ktlint" version "6.2.1"
+}
+
 //noinspection GradleCompatible
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
@@ -72,4 +76,4 @@ repositories {
 
 kapt {
     //generateStubs = true
-}
\ No newline at end of file
+}
diff --git a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/App.kt b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/App.kt
index a621736..219f8f1 100644
--- a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/App.kt
+++ b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/App.kt
@@ -25,12 +25,10 @@ import org.acra.ACRA
 import org.acra.ReportingInteractionMode
 import org.acra.annotation.ReportsCrashes
 
-
 @ReportsCrashes(mailTo = "erik@thauvin.net",
-        mode = ReportingInteractionMode.DIALOG,
-        reportSenderFactoryClasses = arrayOf(CrashEmailFactory::class),
-        reportDialogClass = CrashReportActivity::class)
-
+    mode = ReportingInteractionMode.DIALOG,
+    reportSenderFactoryClasses = arrayOf(CrashEmailFactory::class),
+    reportDialogClass = CrashReportActivity::class)
 open class App : Application() {
     override fun attachBaseContext(base: Context) {
         super.attachBaseContext(base)
diff --git a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/MainActivity.kt b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/MainActivity.kt
index 7191817..d4ea0f7 100644
--- a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/MainActivity.kt
+++ b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/MainActivity.kt
@@ -27,7 +27,11 @@ import android.graphics.Typeface
 import android.os.Build
 import android.os.Bundle
 import android.support.v7.app.AppCompatActivity
-import android.text.*
+import android.text.Html
+import android.text.InputFilter
+import android.text.InputType
+import android.text.Spanned
+import android.text.TextUtils
 import android.util.TypedValue
 import android.view.Menu
 import android.view.MenuItem
@@ -45,9 +49,22 @@ import net.thauvin.erik.android.tesremoteprogrammer.models.Configurations
 import net.thauvin.erik.android.tesremoteprogrammer.util.Dtmf
 import net.thauvin.erik.android.tesremoteprogrammer.util.isDKS
 import net.thauvin.erik.android.tesremoteprogrammer.util.isDigits
-import org.jetbrains.anko.*
+import org.jetbrains.anko.AnkoLogger
+import org.jetbrains.anko.alert
+import org.jetbrains.anko.bottomPadding
+import org.jetbrains.anko.cancelButton
 import org.jetbrains.anko.design.textInputEditText
 import org.jetbrains.anko.design.textInputLayout
+import org.jetbrains.anko.dip
+import org.jetbrains.anko.horizontalPadding
+import org.jetbrains.anko.info
+import org.jetbrains.anko.listView
+import org.jetbrains.anko.padding
+import org.jetbrains.anko.singleLine
+import org.jetbrains.anko.startActivity
+import org.jetbrains.anko.textView
+import org.jetbrains.anko.topPadding
+import org.jetbrains.anko.verticalLayout
 import permissions.dispatcher.NeedsPermission
 import permissions.dispatcher.RuntimePermissions
 import java.io.FileNotFoundException
@@ -55,7 +72,9 @@ import java.io.InputStreamReader
 import java.io.ObjectInputStream
 import java.io.ObjectOutputStream
 import java.text.DateFormat
-import java.util.*
+import java.util.ArrayList
+import java.util.Date
+import java.util.Locale
 
 @RuntimePermissions
 class MainActivity : AppCompatActivity(), AnkoLogger {
@@ -64,13 +83,13 @@ class MainActivity : AppCompatActivity(), AnkoLogger {
     private val configurationsData = "configurations.dat"
     private val currentConfigData = "config.dat"
     private val defaultConfigurations = listOf(
-            R.raw.dks_1802,
-            R.raw.dks_1802_epd,
-            R.raw.dks_1812,
-            R.raw.dks_1819,
-            R.raw.linear_ae_100,
-            R.raw.linear_ae_500,
-            R.raw.dks_1803_1808_1810)
+        R.raw.dks_1802,
+        R.raw.dks_1802_epd,
+        R.raw.dks_1812,
+        R.raw.dks_1819,
+        R.raw.linear_ae_100,
+        R.raw.linear_ae_500,
+        R.raw.dks_1803_1808_1810)
     private val readRequestCode = 42
 
     companion object {
@@ -97,7 +116,7 @@ class MainActivity : AppCompatActivity(), AnkoLogger {
 
             defaultConfigurations.forEach {
                 config = Gson().fromJson(InputStreamReader(resources.openRawResource(it)),
-                        Config::class.java)
+                    Config::class.java)
 
                 if (BuildConfig.DEBUG) {
                     val errors = StringBuilder()
@@ -126,7 +145,7 @@ class MainActivity : AppCompatActivity(), AnkoLogger {
 
             extraTitle = "Last Update"
             extra = DateFormat.getDateInstance(DateFormat.LONG, Locale.getDefault()).format(
-                    Date(BuildConfig.TIMESTAMP)).toString()
+                Date(BuildConfig.TIMESTAMP)).toString()
 
             emailAddress = "erik@thauvin.net"
             emailSubject = "${getString(R.string.app_name)} ${BuildConfig.VERSION_NAME} Support"
@@ -154,7 +173,7 @@ class MainActivity : AppCompatActivity(), AnkoLogger {
 
         val tmp: Config? = try {
             Gson().fromJson(InputStreamReader(contentResolver.openInputStream(intent.data)),
-                    Config::class.java)
+                Config::class.java)
         } catch (jse: JsonSyntaxException) {
             val cause = jse.cause
             if (cause != null) {
@@ -291,8 +310,8 @@ class MainActivity : AppCompatActivity(), AnkoLogger {
                         if (validateFields(fields)) {
                             saveConfig()
                             startActivity<ProgrammingActivity>(
-                                    "net.thauvin.erik.android.tesremoteprogrammer.models.Params" to config.params,
-                                    "net.thauvin.erik.android.tesremoteprogrammer.models.Option" to opts[position])
+                                "net.thauvin.erik.android.tesremoteprogrammer.models.Params" to config.params,
+                                "net.thauvin.erik.android.tesremoteprogrammer.models.Option" to opts[position])
                         }
                     }
                 }
@@ -340,16 +359,17 @@ class MainActivity : AppCompatActivity(), AnkoLogger {
                 }
 
                 alert.show()
-
             }
         }
         return super.onOptionsItemSelected(item)
     }
 
     @SuppressLint("NeedOnRequestPermissionsResult")
-    override fun onRequestPermissionsResult(requestCode: Int,
-                                            permissions: Array<out String>,
-                                            grantResults: IntArray) {
+    override fun onRequestPermissionsResult(
+        requestCode: Int,
+        permissions: Array<out String>,
+        grantResults: IntArray
+    ) {
         super.onRequestPermissionsResult(requestCode, permissions, grantResults)
         onRequestPermissionsResult(requestCode, grantResults)
     }
@@ -365,9 +385,9 @@ class MainActivity : AppCompatActivity(), AnkoLogger {
     }
 
     private fun saveConfigurations(confs: Configurations) =
-            ObjectOutputStream(openFileOutput(configurationsData, Context.MODE_PRIVATE)).use {
-                it.writeObject(confs)
-            }
+        ObjectOutputStream(openFileOutput(configurationsData, Context.MODE_PRIVATE)).use {
+            it.writeObject(confs)
+        }
 
     private fun saveConfig(backup: Boolean = true) {
         if (backup) {
@@ -397,7 +417,6 @@ class MainActivity : AppCompatActivity(), AnkoLogger {
                     errors.append(getString(R.string.validate_missing_param, "type"))
                 } else if (!Dtmf.isValidType(type)) {
                     errors.append(getString(R.string.validate_invalid_param, "type"))
-
                 }
 
                 // size
@@ -426,49 +445,49 @@ class MainActivity : AppCompatActivity(), AnkoLogger {
                             // title
                             if (title.isBlank()) {
                                 errors.append(getString(
-                                        R.string.validate_missing_opts_prop,
-                                        i + 1,
-                                        "title"))
+                                    R.string.validate_missing_opts_prop,
+                                    i + 1,
+                                    "title"))
                             }
 
                             // nosteps/nodial
                             if (nosteps && nodial) {
                                 errors.append(getString(
-                                        R.string.validate_invalid_option,
-                                        i + 1,
-                                        "nodial/nosteps"))
+                                    R.string.validate_invalid_option,
+                                    i + 1,
+                                    "nodial/nosteps"))
                             }
 
                             // dtmf
                             if (dtmf.isBlank()) {
                                 errors.append(getString(
-                                        R.string.validate_missing_opts_prop,
-                                        i + 1,
-                                        "dtmf"))
+                                    R.string.validate_missing_opts_prop,
+                                    i + 1,
+                                    "dtmf"))
                             } else if (!nodial && fields.isEmpty()) { // fields missing
                                 errors.append(getString(
-                                        R.string.validate_missing_opts_prop,
-                                        i + 1,
-                                        "fields"))
+                                    R.string.validate_missing_opts_prop,
+                                    i + 1,
+                                    "fields"))
                             } else {
                                 val blank = "\\0"
                                 val mock = Dtmf.mock(option, blank)
 
                                 if (!mock.contains(MainActivity.PAUSE)) { // no pause
                                     errors.append(getString(
-                                            R.string.validate_invalid_opts_prop,
-                                            i + 1,
-                                            "dtmf",
-                                            getString(R.string.validate_dtmf_nopause)))
+                                        R.string.validate_invalid_opts_prop,
+                                        i + 1,
+                                        "dtmf",
+                                        getString(R.string.validate_dtmf_nopause)))
                                 }
 
                                 if (!Dtmf.validate(mock,
-                                                "${MainActivity.PAUSE}${params.ack}${params.alt}$blank", nodial)) {
+                                        "${MainActivity.PAUSE}${params.ack}${params.alt}$blank", nodial)) {
                                     errors.append(getString(
-                                            R.string.validate_invalid_opts_prop,
-                                            i + 1,
-                                            "dtmf",
-                                            mock.replace(blank, "&#10003;")))
+                                        R.string.validate_invalid_opts_prop,
+                                        i + 1,
+                                        "dtmf",
+                                        mock.replace(blank, "&#10003;")))
                                 }
                             }
 
@@ -476,78 +495,78 @@ class MainActivity : AppCompatActivity(), AnkoLogger {
                             fields.forEachIndexed { j, field ->
                                 if (field == null) {
                                     errors.append(getString(
-                                            R.string.validate_syntax_error,
-                                            "opts[${i + 1}], field[$j]"))
+                                        R.string.validate_syntax_error,
+                                        "opts[${i + 1}], field[$j]"))
                                 } else {
                                     with(field) {
                                         // size
                                         if (size <= 0) {
                                             errors.append(getString(
-                                                    R.string.validate_invalid_field_prop,
-                                                    i + 1,
-                                                    j + 1,
-                                                    resources.getQuantityString(R.plurals.error_prop, 1),
-                                                    "size=$size"))
+                                                R.string.validate_invalid_field_prop,
+                                                i + 1,
+                                                j + 1,
+                                                resources.getQuantityString(R.plurals.error_prop, 1),
+                                                "size=$size"))
                                         }
 
                                         // digits
                                         if (digits.isNotBlank() && !digits.isDigits()) {
                                             errors.append(getString(
-                                                    R.string.validate_invalid_field_prop,
-                                                    i + 1,
-                                                    j + 1,
-                                                    resources.getQuantityString(R.plurals.error_prop, 1),
-                                                    "digits='$digits'"))
+                                                R.string.validate_invalid_field_prop,
+                                                i + 1,
+                                                j + 1,
+                                                resources.getQuantityString(R.plurals.error_prop, 1),
+                                                "digits='$digits'"))
                                         }
 
                                         // minSize
                                         if (minSize >= 0 && minSize > size) {
                                             errors.append(getString(
-                                                    R.string.validate_invalid_field_prop,
-                                                    i + 1,
-                                                    j + 1,
-                                                    resources.getQuantityString(R.plurals.error_prop, 2),
-                                                    "minSize=$minSize > size=$size"))
+                                                R.string.validate_invalid_field_prop,
+                                                i + 1,
+                                                j + 1,
+                                                resources.getQuantityString(R.plurals.error_prop, 2),
+                                                "minSize=$minSize > size=$size"))
                                         }
 
                                         // numeric fields only
                                         if (!alpha) {
                                             if (minSize == 0) {
                                                 errors.append(getString(
-                                                        R.string.validate_invalid_field_prop,
-                                                        i + 1,
-                                                        j + 1,
-                                                        resources.getQuantityString(R.plurals.error_prop, 1),
-                                                        "minSize=$minSize"))
+                                                    R.string.validate_invalid_field_prop,
+                                                    i + 1,
+                                                    j + 1,
+                                                    resources.getQuantityString(R.plurals.error_prop, 1),
+                                                    "minSize=$minSize"))
                                             }
 
                                             // min/max
                                             if (min >= 0 || max >= 0) {
                                                 if (max < 1) {
                                                     errors.append(getString(
-                                                            R.string.validate_invalid_field_prop,
-                                                            i + 1,
-                                                            j + 1,
-                                                            resources.getQuantityString(R.plurals.error_prop, 1),
-                                                            "max=$max"))
+                                                        R.string.validate_invalid_field_prop,
+                                                        i + 1,
+                                                        j + 1,
+                                                        resources.getQuantityString(R.plurals.error_prop, 1),
+                                                        "max=$max"))
                                                 }
 
                                                 if (min < 0) {
                                                     errors.append(getString(
-                                                            R.string.validate_invalid_field_prop,
-                                                            i + 1,
-                                                            j + 1,
-                                                            resources.getQuantityString(R.plurals.error_prop, 1),
-                                                            "min=$min"))
+                                                        R.string.validate_invalid_field_prop,
+                                                        i + 1,
+                                                        j + 1,
+                                                        resources.getQuantityString(R.plurals.error_prop, 1),
+                                                        "min=$min"))
                                                 }
 
                                                 if (min > max) {
                                                     errors.append(getString(
-                                                            R.string.validate_invalid_field_prop,
-                                                            i + 1,
-                                                            j + 1,
-                                                            resources.getQuantityString(R.plurals.error_prop, 2),
-                                                            "min=$min > max=$max"))
+                                                        R.string.validate_invalid_field_prop,
+                                                        i + 1,
+                                                        j + 1,
+                                                        resources.getQuantityString(R.plurals.error_prop, 2),
+                                                        "min=$min > max=$max"))
                                                 }
                                             }
 
@@ -557,11 +576,11 @@ class MainActivity : AppCompatActivity(), AnkoLogger {
                                                 if (min >= 0 && minSize > 0) {
                                                     if (min.toString().length != minSize) {
                                                         errors.append(getString(
-                                                                R.string.validate_invalid_field_prop,
-                                                                i + 1,
-                                                                j + 1,
-                                                                resources.getQuantityString(R.plurals.error_prop, 2),
-                                                                "minSize=$minSize/min=$min"))
+                                                            R.string.validate_invalid_field_prop,
+                                                            i + 1,
+                                                            j + 1,
+                                                            resources.getQuantityString(R.plurals.error_prop, 2),
+                                                            "minSize=$minSize/min=$min"))
                                                     }
                                                 }
 
@@ -569,11 +588,11 @@ class MainActivity : AppCompatActivity(), AnkoLogger {
                                                 if (size > 0 && max > 0) {
                                                     if (max.toString().length != size) {
                                                         errors.append(getString(
-                                                                R.string.validate_invalid_field_prop,
-                                                                i + 1,
-                                                                j + 1,
-                                                                resources.getQuantityString(R.plurals.error_prop, 2),
-                                                                "size=$size/max=$max"))
+                                                            R.string.validate_invalid_field_prop,
+                                                            i + 1,
+                                                            j + 1,
+                                                            resources.getQuantityString(R.plurals.error_prop, 2),
+                                                            "size=$size/max=$max"))
                                                     }
                                                 }
                                             }
@@ -582,9 +601,9 @@ class MainActivity : AppCompatActivity(), AnkoLogger {
                                         // unused fields
                                         if (!dtmf.contains(Dtmf.DTMF_FIELD.format(j + 1))) {
                                             errors.append(getString(
-                                                    R.string.validate_unused_field,
-                                                    i + 1,
-                                                    j + 1))
+                                                R.string.validate_unused_field,
+                                                i + 1,
+                                                j + 1))
                                         }
                                     }
                                 }
@@ -608,7 +627,7 @@ class MainActivity : AppCompatActivity(), AnkoLogger {
                     isValid = false
                 } else if (second > 0 && first.text.length != second) {
                     first.error = getString(R.string.error_invalid_size, second,
-                            resources.getQuantityString(R.plurals.error_digit, second), "")
+                        resources.getQuantityString(R.plurals.error_digit, second), "")
                     isValid = false
                 }
             }
diff --git a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/ProgrammingActivity.kt b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/ProgrammingActivity.kt
index cac2f7f..248b94e 100644
--- a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/ProgrammingActivity.kt
+++ b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/ProgrammingActivity.kt
@@ -32,7 +32,9 @@ import android.text.SpannableString
 import android.text.TextUtils
 import android.text.style.ImageSpan
 import android.util.TypedValue
-import android.view.Gravity.*
+import android.view.Gravity.BOTTOM
+import android.view.Gravity.END
+import android.view.Gravity.START
 import android.view.ViewManager
 import android.view.inputmethod.EditorInfo
 import android.view.inputmethod.InputMethodManager
@@ -47,16 +49,29 @@ import net.thauvin.erik.android.tesremoteprogrammer.util.Dtmf
 import net.thauvin.erik.android.tesremoteprogrammer.util.isDKS
 import net.thauvin.erik.android.tesremoteprogrammer.util.isLinear
 import net.thauvin.erik.android.tesremoteprogrammer.widget.ScrollAwareFABBehavior
-import org.jetbrains.anko.*
+import org.jetbrains.anko.AnkoLogger
+import org.jetbrains.anko.bottomPadding
 import org.jetbrains.anko.custom.ankoView
 import org.jetbrains.anko.design.coordinatorLayout
 import org.jetbrains.anko.design.floatingActionButton
 import org.jetbrains.anko.design.textInputEditText
 import org.jetbrains.anko.design.textInputLayout
+import org.jetbrains.anko.dip
+import org.jetbrains.anko.horizontalPadding
+import org.jetbrains.anko.imageResource
+import org.jetbrains.anko.info
+import org.jetbrains.anko.makeCall
+import org.jetbrains.anko.matchParent
+import org.jetbrains.anko.padding
+import org.jetbrains.anko.singleLine
+import org.jetbrains.anko.startActivity
 import org.jetbrains.anko.support.v4.nestedScrollView
+import org.jetbrains.anko.topPadding
+import org.jetbrains.anko.verticalLayout
+import org.jetbrains.anko.wrapContent
 import permissions.dispatcher.NeedsPermission
 import permissions.dispatcher.RuntimePermissions
-import java.util.*
+import java.util.ArrayList
 
 @RuntimePermissions
 class ProgrammingActivity : AppCompatActivity(), AnkoLogger {
@@ -100,7 +115,6 @@ class ProgrammingActivity : AppCompatActivity(), AnkoLogger {
                             typeface = Typeface.create(Typeface.DEFAULT, Typeface.ITALIC)
                             freezesText = true
                         }.lparams(width = matchParent, height = matchParent)
-
                     } else {
                         val it = option.fields.iterator()
                         while (it.hasNext()) {
@@ -129,11 +143,11 @@ class ProgrammingActivity : AppCompatActivity(), AnkoLogger {
                                         inputFilters.add(NumberFilter(field.digits, if (field.alt) params.alt else empty))
                                         if (field.max != -1 && field.min != -1) {
                                             inputFilters.add(
-                                                    MinMaxFilter(
-                                                            field.min,
-                                                            field.max,
-                                                            field.size,
-                                                            params.type.isDKS() || field.zeros))
+                                                MinMaxFilter(
+                                                    field.min,
+                                                    field.max,
+                                                    field.size,
+                                                    params.type.isDKS() || field.zeros))
                                         }
                                     }
 
@@ -203,15 +217,15 @@ class ProgrammingActivity : AppCompatActivity(), AnkoLogger {
                             }
 
                             startActivity<StepsActivity>(
-                                    StepsActivity.EXTRA_STEPS to "$begin${dtmf.replace(MainActivity.QUOTE, empty)}$end".split(MainActivity.PAUSE))
+                                StepsActivity.EXTRA_STEPS to "$begin${dtmf.replace(MainActivity.QUOTE, empty)}$end".split(MainActivity.PAUSE))
                         } else {
                             Snackbar.make(this@coordinatorLayout,
-                                    getString(R.string.error_invalid_dtmf, dtmf),
-                                    Snackbar.LENGTH_LONG).show()
+                                getString(R.string.error_invalid_dtmf, dtmf),
+                                Snackbar.LENGTH_LONG).show()
                         }
                     } else {
                         Snackbar.make(this@coordinatorLayout, R.string.error_invalid_field,
-                                Snackbar.LENGTH_LONG).show()
+                            Snackbar.LENGTH_LONG).show()
                     }
                 }
             }
@@ -234,12 +248,12 @@ class ProgrammingActivity : AppCompatActivity(), AnkoLogger {
                                 callWithPermissionCheck(params.phone, dtmf)
                             } else {
                                 Snackbar.make(this@coordinatorLayout,
-                                        getString(R.string.error_invalid_dtmf, dtmf),
-                                        Snackbar.LENGTH_LONG).show()
+                                    getString(R.string.error_invalid_dtmf, dtmf),
+                                    Snackbar.LENGTH_LONG).show()
                             }
                         } else {
                             Snackbar.make(this@coordinatorLayout, R.string.error_invalid_field,
-                                    Snackbar.LENGTH_LONG).show()
+                                Snackbar.LENGTH_LONG).show()
                         }
                     } else {
                         val text = SpannableString(getString(R.string.error_invalid_field_for_call) + "   ")
@@ -252,9 +266,11 @@ class ProgrammingActivity : AppCompatActivity(), AnkoLogger {
     }
 
     @SuppressLint("NeedOnRequestPermissionsResult")
-    override fun onRequestPermissionsResult(requestCode: Int,
-                                            permissions: Array<out String>,
-                                            grantResults: IntArray) {
+    override fun onRequestPermissionsResult(
+        requestCode: Int,
+        permissions: Array<out String>,
+        grantResults: IntArray
+    ) {
         super.onRequestPermissionsResult(requestCode, permissions, grantResults)
         onRequestPermissionsResult(requestCode, grantResults)
     }
@@ -295,16 +311,16 @@ class ProgrammingActivity : AppCompatActivity(), AnkoLogger {
                     } else if (!validateSize(v.length(), if ((!type.isDKS() && !zeros) && min >= 0) min.toString().length else minSize, size)) {
                         if (minSize > 0) {
                             v.error = getString(
-                                    R.string.error_invalid_size,
-                                    minSize,
-                                    resources.getQuantityString(R.plurals.error_digit, minSize),
-                                    getString(R.string.error_minimum))
+                                R.string.error_invalid_size,
+                                minSize,
+                                resources.getQuantityString(R.plurals.error_digit, minSize),
+                                getString(R.string.error_minimum))
                         } else {
                             v.error = getString(
-                                    R.string.error_invalid_size,
-                                    size,
-                                    resources.getQuantityString(R.plurals.error_digit, size),
-                                    empty)
+                                R.string.error_invalid_size,
+                                size,
+                                resources.getQuantityString(R.plurals.error_digit, size),
+                                empty)
                         }
                         isValid = false
                     } else if (min >= 0 && max > 0) {
diff --git a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/StepsActivity.kt b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/StepsActivity.kt
index 4e6d271..ffa0f2b 100644
--- a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/StepsActivity.kt
+++ b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/StepsActivity.kt
@@ -22,8 +22,9 @@ import android.app.FragmentManager
 import android.os.Bundle
 import android.support.v13.app.FragmentStatePagerAdapter
 import android.support.v4.app.FragmentActivity
-import kotlinx.android.synthetic.main.activity_steps.*
-import java.util.*
+import kotlinx.android.synthetic.main.activity_steps.indicator
+import kotlinx.android.synthetic.main.activity_steps.pager
+import java.util.ArrayList
 
 class StepsActivity : FragmentActivity() {
     companion object {
@@ -39,8 +40,10 @@ class StepsActivity : FragmentActivity() {
         indicator.fades = false
     }
 
-    private inner class StepsAdapter(fm: FragmentManager,
-                                     steps: ArrayList<String>) : FragmentStatePagerAdapter(fm) {
+    private inner class StepsAdapter(
+        fm: FragmentManager,
+        steps: ArrayList<String>
+    ) : FragmentStatePagerAdapter(fm) {
         private val steps = ArrayList<String>(steps)
 
         override fun getItem(position: Int): Fragment = StepsFragment.create(position, steps)
diff --git a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/StepsFragment.kt b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/StepsFragment.kt
index 23c5418..a237eb1 100644
--- a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/StepsFragment.kt
+++ b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/StepsFragment.kt
@@ -22,8 +22,9 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import kotlinx.android.synthetic.main.fragment_steps.*
-import java.util.*
+import kotlinx.android.synthetic.main.fragment_steps.frag_steps
+import kotlinx.android.synthetic.main.fragment_steps.frag_steps_title
+import java.util.ArrayList
 
 class StepsFragment : Fragment() {
     private var pageNumber: Int = 0
@@ -51,9 +52,11 @@ class StepsFragment : Fragment() {
         pageNumber = arguments.getInt(ARG_PAGE)
     }
 
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
-                              savedInstanceState: Bundle?): View? =
-            inflater.inflate(R.layout.fragment_steps, container, false) as ViewGroup
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? = inflater.inflate(R.layout.fragment_steps, container, false) as ViewGroup
 
     override fun onViewCreated(view: View?, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
diff --git a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/filters/AlphaFilter.kt b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/filters/AlphaFilter.kt
index b342ad5..7b5c85f 100644
--- a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/filters/AlphaFilter.kt
+++ b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/filters/AlphaFilter.kt
@@ -22,13 +22,14 @@ import android.text.SpannableStringBuilder
 import android.text.Spanned
 
 class AlphaFilter(private val extras: String) : InputFilter {
-    override fun filter(source: CharSequence,
-                        start: Int,
-                        end: Int,
-                        dest: Spanned,
-                        dstart: Int,
-                        dend: Int): CharSequence? {
-
+    override fun filter(
+        source: CharSequence,
+        start: Int,
+        end: Int,
+        dest: Spanned,
+        dstart: Int,
+        dend: Int
+    ): CharSequence? {
         if (source is SpannableStringBuilder) {
             for (i in end - 1 downTo start) {
                 val c = source[i]
@@ -40,9 +41,9 @@ class AlphaFilter(private val extras: String) : InputFilter {
         } else {
             val sb = StringBuilder()
             (start until end)
-                    .map { source[it] }
-                    .filter { it.isLetterOrDigit() || extras.contains(it) }
-                    .forEach { sb.append(it) }
+                .map { source[it] }
+                .filter { it.isLetterOrDigit() || extras.contains(it) }
+                .forEach { sb.append(it) }
             return sb.toString()
         }
     }
diff --git a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/filters/NumberFilter.kt b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/filters/NumberFilter.kt
index 5c29ea5..afc6a72 100644
--- a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/filters/NumberFilter.kt
+++ b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/filters/NumberFilter.kt
@@ -27,13 +27,14 @@ class NumberFilter(allowed: String, alt: String) : InputFilter, AnkoLogger {
     private val allowed: String
     private val digits = "0123456789"
 
-    override fun filter(source: CharSequence,
-                        start: Int,
-                        end: Int,
-                        dest: Spanned,
-                        dstart: Int,
-                        dend: Int): CharSequence? {
-
+    override fun filter(
+        source: CharSequence,
+        start: Int,
+        end: Int,
+        dest: Spanned,
+        dstart: Int,
+        dend: Int
+    ): CharSequence? {
         if (source is SpannableStringBuilder) {
             for (i in end - 1 downTo start) {
                 val c = source[i]
@@ -45,9 +46,9 @@ class NumberFilter(allowed: String, alt: String) : InputFilter, AnkoLogger {
         } else {
             val sb = StringBuilder()
             (start until end)
-                    .map { source[it] }
-                    .filter { allowed.contains(it) }
-                    .forEach { sb.append(it.toUpperCase()) }
+                .map { source[it] }
+                .filter { allowed.contains(it) }
+                .forEach { sb.append(it.toUpperCase()) }
             return sb.toString()
         }
     }
diff --git a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/models/Config.kt b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/models/Config.kt
index 464c42c..bbd1d4a 100644
--- a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/models/Config.kt
+++ b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/models/Config.kt
@@ -23,9 +23,11 @@ import java.io.Serializable
 
 data class Config(var params: Params, var opts: List<Option>) : Parcelable, Serializable, Comparable<Config> {
     companion object {
-        private @JvmStatic val serialVersionUID: Long = 1
+        @JvmStatic
+        private val serialVersionUID: Long = 1
 
-        @JvmField val CREATOR: Parcelable.Creator<Config> = object : Parcelable.Creator<Config> {
+        @JvmField
+        val CREATOR: Parcelable.Creator<Config> = object : Parcelable.Creator<Config> {
             override fun createFromParcel(source: Parcel): Config = Config(source)
             override fun newArray(size: Int): Array<Config?> = arrayOfNulls(size)
         }
@@ -34,8 +36,8 @@ data class Config(var params: Params, var opts: List<Option>) : Parcelable, Seri
     constructor() : this(Params(), emptyList<Option>())
 
     constructor(source: Parcel) : this(
-            source.readParcelable<Params>(Params::class.java.classLoader),
-            source.createTypedArrayList(Option.CREATOR))
+        source.readParcelable<Params>(Params::class.java.classLoader),
+        source.createTypedArrayList(Option.CREATOR))
 
     override fun compareTo(other: Config): Int = params.name.compareTo(other.params.name)
 
diff --git a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/models/Configurations.kt b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/models/Configurations.kt
index 8057569..f30b9e8 100644
--- a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/models/Configurations.kt
+++ b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/models/Configurations.kt
@@ -18,11 +18,12 @@
 package net.thauvin.erik.android.tesremoteprogrammer.models
 
 import java.io.Serializable
-import java.util.*
+import java.util.HashMap
 
 class Configurations : Serializable {
     companion object {
-        private @JvmStatic val serialVersionUID: Long = 1
+        @JvmStatic
+        private val serialVersionUID: Long = 1
     }
 
     val configs = HashMap<String, Config>()
diff --git a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/models/Field.kt b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/models/Field.kt
index 1d4b1ce..8b2b6a9 100644
--- a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/models/Field.kt
+++ b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/models/Field.kt
@@ -21,20 +21,23 @@ import android.os.Parcel
 import android.os.Parcelable
 import java.io.Serializable
 
-data class Field(var hint: String,
-                 var digits: String,
-                 var alpha: Boolean,
-                 val alt: Boolean,
-                 val zeros: Boolean,
-                 var minSize: Int,
-                 var size: Int,
-                 var min: Int,
-                 var max: Int) : Parcelable, Serializable {
-
+data class Field(
+    var hint: String,
+    var digits: String,
+    var alpha: Boolean,
+    val alt: Boolean,
+    val zeros: Boolean,
+    var minSize: Int,
+    var size: Int,
+    var min: Int,
+    var max: Int
+) : Parcelable, Serializable {
     companion object {
-        private @JvmStatic val serialVersionUID: Long = 1
+        @JvmStatic
+        private val serialVersionUID: Long = 1
 
-        @JvmField val CREATOR: Parcelable.Creator<Field> = object : Parcelable.Creator<Field> {
+        @JvmField
+        val CREATOR: Parcelable.Creator<Field> = object : Parcelable.Creator<Field> {
             override fun createFromParcel(source: Parcel): Field = Field(source)
             override fun newArray(size: Int): Array<Field?> = arrayOfNulls(size)
         }
@@ -43,15 +46,15 @@ data class Field(var hint: String,
     constructor() : this("", "", false, false, false, -1, -1, -1, -1)
 
     constructor(source: Parcel) : this(
-            source.readString(),
-            source.readString(),
-            1 == source.readInt(),
-            1 == source.readInt(),
-            1 == source.readInt(),
-            source.readInt(),
-            source.readInt(),
-            source.readInt(),
-            source.readInt())
+        source.readString(),
+        source.readString(),
+        1 == source.readInt(),
+        1 == source.readInt(),
+        1 == source.readInt(),
+        source.readInt(),
+        source.readInt(),
+        source.readInt(),
+        source.readInt())
 
     override fun describeContents() = 0
 
diff --git a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/models/Option.kt b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/models/Option.kt
index 0d0fe0f..3291cbd 100644
--- a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/models/Option.kt
+++ b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/models/Option.kt
@@ -21,16 +21,19 @@ import android.os.Parcel
 import android.os.Parcelable
 import java.io.Serializable
 
-data class Option(var title: String,
-                  var fields: List<Field?>,
-                  var nodial: Boolean,
-                  var nosteps: Boolean,
-                  var dtmf: String) : Parcelable, Serializable, Comparable<Option> {
-
+data class Option(
+    var title: String,
+    var fields: List<Field?>,
+    var nodial: Boolean,
+    var nosteps: Boolean,
+    var dtmf: String
+) : Parcelable, Serializable, Comparable<Option> {
     companion object {
-        private @JvmStatic val serialVersionUID: Long = 1
+        @JvmStatic
+        private val serialVersionUID: Long = 1
 
-        @JvmField val CREATOR: Parcelable.Creator<Option> = object : Parcelable.Creator<Option> {
+        @JvmField
+        val CREATOR: Parcelable.Creator<Option> = object : Parcelable.Creator<Option> {
             override fun createFromParcel(source: Parcel): Option = Option(source)
             override fun newArray(size: Int): Array<Option?> = arrayOfNulls(size)
         }
@@ -39,11 +42,11 @@ data class Option(var title: String,
     constructor() : this("", emptyList(), false, false, "")
 
     constructor(source: Parcel) : this(
-            source.readString(),
-            source.createTypedArrayList(Field.CREATOR),
-            1 == source.readInt(),
-            1 == source.readInt(),
-            source.readString())
+        source.readString(),
+        source.createTypedArrayList(Field.CREATOR),
+        1 == source.readInt(),
+        1 == source.readInt(),
+        source.readString())
 
     override fun compareTo(other: Option): Int = title.compareTo(other.title)
 
@@ -56,5 +59,4 @@ data class Option(var title: String,
         dest?.writeInt((if (nosteps) 1 else 0))
         dest?.writeString(dtmf)
     }
-
 }
\ No newline at end of file
diff --git a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/models/Params.kt b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/models/Params.kt
index 5ae8aa2..8c9b4b9 100644
--- a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/models/Params.kt
+++ b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/models/Params.kt
@@ -21,20 +21,23 @@ import android.os.Parcel
 import android.os.Parcelable
 import java.io.Serializable
 
-data class Params(var name: String,
-                  var type: String,
-                  var phone: String,
-                  var master: String,
-                  var size: Int,
-                  var ack: String,
-                  var alt: String,
-                  var begin: String,
-                  var end: String) : Parcelable, Serializable {
-
+data class Params(
+    var name: String,
+    var type: String,
+    var phone: String,
+    var master: String,
+    var size: Int,
+    var ack: String,
+    var alt: String,
+    var begin: String,
+    var end: String
+) : Parcelable, Serializable {
     companion object {
-        private @JvmStatic val serialVersionUID: Long = 1
+        @JvmStatic
+        private val serialVersionUID: Long = 1
 
-        @JvmField val CREATOR: Parcelable.Creator<Params> = object : Parcelable.Creator<Params> {
+        @JvmField
+        val CREATOR: Parcelable.Creator<Params> = object : Parcelable.Creator<Params> {
             override fun createFromParcel(source: Parcel): Params = Params(source)
             override fun newArray(size: Int): Array<Params?> = arrayOfNulls(size)
         }
@@ -43,15 +46,15 @@ data class Params(var name: String,
     constructor() : this("", "", "", "", -1, "", "", "", "")
 
     constructor(source: Parcel) : this(
-            source.readString(),
-            source.readString(),
-            source.readString(),
-            source.readString(),
-            source.readInt(),
-            source.readString(),
-            source.readString(),
-            source.readString(),
-            source.readString())
+        source.readString(),
+        source.readString(),
+        source.readString(),
+        source.readString(),
+        source.readInt(),
+        source.readString(),
+        source.readString(),
+        source.readString(),
+        source.readString())
 
     override fun describeContents() = 0
 
diff --git a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/reporting/CrashEmail.kt b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/reporting/CrashEmail.kt
index af95621..ed45b7b 100644
--- a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/reporting/CrashEmail.kt
+++ b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/reporting/CrashEmail.kt
@@ -36,7 +36,7 @@ class CrashEmail(private val config: ACRAConfiguration) : ReportSender {
     override fun send(context: Context, errorContent: CrashReportData) {
 
         val subject = context.getString(R.string.crash_report_subject,
-                context.getString(R.string.app_name))
+            context.getString(R.string.app_name))
         val body = buildBody(errorContent)
 
         val emailIntent = Intent(android.content.Intent.ACTION_SENDTO)
diff --git a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/reporting/CrashEmailFactory.kt b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/reporting/CrashEmailFactory.kt
index aef46f4..129cfa0 100644
--- a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/reporting/CrashEmailFactory.kt
+++ b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/reporting/CrashEmailFactory.kt
@@ -24,5 +24,5 @@ import org.acra.sender.ReportSenderFactory
 
 class CrashEmailFactory : ReportSenderFactory {
     override fun create(context: Context, config: ACRAConfiguration): ReportSender =
-            CrashEmail(config)
+        CrashEmail(config)
 }
\ No newline at end of file
diff --git a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/reporting/CrashReportActivity.kt b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/reporting/CrashReportActivity.kt
index fce5478..bd9f8e6 100644
--- a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/reporting/CrashReportActivity.kt
+++ b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/reporting/CrashReportActivity.kt
@@ -28,7 +28,7 @@ import org.acra.dialog.BaseCrashReportDialog
 import org.jetbrains.anko.find
 
 class CrashReportActivity : BaseCrashReportDialog(), DialogInterface.OnDismissListener,
-        DialogInterface.OnClickListener {
+    DialogInterface.OnClickListener {
     private var comment: EditText? = null
 
     companion object {
@@ -39,11 +39,11 @@ class CrashReportActivity : BaseCrashReportDialog(), DialogInterface.OnDismissLi
         super.init(savedInstanceState)
 
         val dialog = AlertDialog.Builder(this)
-                .setTitle(getString(R.string.crash_dialog_title, getString(R.string.app_name)))
-                .setView(R.layout.crash_report_dialog)
-                .setPositiveButton(R.string.ok, this)
-                .setNegativeButton(R.string.cancel, this)
-                .create()
+            .setTitle(getString(R.string.crash_dialog_title, getString(R.string.app_name)))
+            .setView(R.layout.crash_report_dialog)
+            .setPositiveButton(R.string.ok, this)
+            .setNegativeButton(R.string.cancel, this)
+            .create()
 
         dialog.setCanceledOnTouchOutside(false)
         dialog.setOnDismissListener(this)
diff --git a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/util/Dtmf.kt b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/util/Dtmf.kt
index 41c79bc..8d819db 100644
--- a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/util/Dtmf.kt
+++ b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/util/Dtmf.kt
@@ -20,7 +20,7 @@ package net.thauvin.erik.android.tesremoteprogrammer.util
 import android.widget.EditText
 import net.thauvin.erik.android.tesremoteprogrammer.MainActivity
 import net.thauvin.erik.android.tesremoteprogrammer.models.Option
-import java.util.*
+import java.util.ArrayList
 
 class Dtmf {
     companion object {
@@ -89,7 +89,6 @@ class Dtmf {
 
         fun isValidType(type: String): Boolean = type.equals(DKS, true) || type.equals(LINEAR, true)
 
-
         private fun linearAlphaToDigits(text: String): String {
             val result = StringBuffer()
 
@@ -150,22 +149,24 @@ class Dtmf {
             return result.toString()
         }
 
-        fun build(type: String,
-                  master: String,
-                  ack: String,
-                  option: Option,
-                  fields: ArrayList<EditText>): String {
+        fun build(
+            type: String,
+            master: String,
+            ack: String,
+            option: Option,
+            fields: ArrayList<EditText>
+        ): String {
             val replace = arrayListOf(Pair(DTMF_MASTER, master))
 
             fields.forEachIndexed { i, field ->
                 replace.add(Pair(DTMF_FIELD.format(i + 1),
-                        if (option.fields[i]!!.alpha && type.isDKS()) {
-                            dksAlphaToDigits(field.text.toString(), ack)
-                        } else if (option.fields[i]!!.alpha && type.isLinear()) {
-                            linearAlphaToDigits(field.text.toString())
-                        } else {
-                            field.text.toString()
-                        }))
+                    if (option.fields[i]!!.alpha && type.isDKS()) {
+                        dksAlphaToDigits(field.text.toString(), ack)
+                    } else if (option.fields[i]!!.alpha && type.isLinear()) {
+                        linearAlphaToDigits(field.text.toString())
+                    } else {
+                        field.text.toString()
+                    }))
             }
 
             return option.dtmf.replaceAll(replace.toTypedArray())
diff --git a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/widget/ScrollAwareFABBehavior.kt b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/widget/ScrollAwareFABBehavior.kt
index 1fedc38..7713b68 100644
--- a/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/widget/ScrollAwareFABBehavior.kt
+++ b/app/src/main/java/net/thauvin/erik/android/tesremoteprogrammer/widget/ScrollAwareFABBehavior.kt
@@ -23,26 +23,30 @@ import android.support.v4.view.ViewCompat
 import android.view.View
 
 class ScrollAwareFABBehavior : FloatingActionButton.Behavior() {
-    override fun onStartNestedScroll(coordinatorLayout: CoordinatorLayout,
-                                     child: FloatingActionButton,
-                                     directTargetChild: View,
-                                     target: View,
-                                     nestedScrollAxes: Int,
-                                     type: Int): Boolean =
-            nestedScrollAxes == ViewCompat.SCROLL_AXIS_VERTICAL ||
-                    super.onStartNestedScroll(coordinatorLayout, child, directTargetChild, target,
-                            nestedScrollAxes, type)
+    override fun onStartNestedScroll(
+        coordinatorLayout: CoordinatorLayout,
+        child: FloatingActionButton,
+        directTargetChild: View,
+        target: View,
+        nestedScrollAxes: Int,
+        type: Int
+    ): Boolean =
+        nestedScrollAxes == ViewCompat.SCROLL_AXIS_VERTICAL ||
+            super.onStartNestedScroll(coordinatorLayout, child, directTargetChild, target,
+                nestedScrollAxes, type)
 
-    override fun onNestedScroll(coordinatorLayout: CoordinatorLayout,
-                                child: FloatingActionButton,
-                                target: View,
-                                dxConsumed: Int,
-                                dyConsumed: Int,
-                                dxUnconsumed: Int,
-                                dyUnconsumed: Int,
-                                type: Int) {
+    override fun onNestedScroll(
+        coordinatorLayout: CoordinatorLayout,
+        child: FloatingActionButton,
+        target: View,
+        dxConsumed: Int,
+        dyConsumed: Int,
+        dxUnconsumed: Int,
+        dyUnconsumed: Int,
+        type: Int
+    ) {
         super.onNestedScroll(coordinatorLayout, child, target, dxConsumed, dyConsumed,
-                dxUnconsumed, dyUnconsumed, type)
+            dxUnconsumed, dyUnconsumed, type)
         if (dyConsumed > 0 && child.visibility == View.VISIBLE) {
             // see: https://stackoverflow.com/a/42082313/5640587
             child.hide(object : FloatingActionButton.OnVisibilityChangedListener() {