erik/Emprunt
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This commit is contained in:
Erik C. Thauvin 2012-03-22 10:59:13 +00:00
parent 5114bd8600
commit 1241635088
22 changed files with 695 additions and 0 deletions
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26
AndroidManifest.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
android:installLocation="preferExternal"
package="net.thauvin.erik.android.emprunt"
android:versionCode="4"
android:versionName="1.0.1" >
<uses-sdk android:minSdkVersion="9" />
<application
android:icon="@drawable/icon"
android:label="@string/app_name"
android:theme="@style/Emprunt" >
<activity
android:name=".EmpruntActivity"
android:label="@string/app_name"
android:screenOrientation="sensorPortait" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>

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gen/net/thauvin/erik/android/emprunt/R.java Normal file
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/* AUTO-GENERATED FILE. DO NOT MODIFY.
*
* This class was automatically generated by the
* aapt tool from the resource data it found. It
* should not be modified by hand.
*/
package net.thauvin.erik.android.emprunt;
public final class R {
public static final class attr {
}
public static final class drawable {
public static final int border=0x7f020000;
public static final int green_gradient=0x7f020001;
public static final int icon=0x7f020002;
}
public static final class id {
public static final int amount=0x7f060002;
public static final int calculate=0x7f060007;
public static final int cost=0x7f06000e;
public static final int interest=0x7f060004;
public static final int months=0x7f060006;
public static final int payment=0x7f06000b;
public static final int tableLayout1=0x7f060008;
public static final int tableRow1=0x7f060009;
public static final int tableRow2=0x7f06000c;
public static final int textView1=0x7f060001;
public static final int textView2=0x7f060003;
public static final int textView3=0x7f060005;
public static final int textView4=0x7f06000a;
public static final int textView6=0x7f06000d;
public static final int titleBar=0x7f060000;
}
public static final class layout {
public static final int main=0x7f030000;
}
public static final class string {
public static final int about_copyright=0x7f040001;
public static final int about_copyright_blackberry=0x7f040002;
public static final int about_title=0x7f040003;
public static final int app_name=0x7f040000;
public static final int btn_calculate=0x7f040004;
public static final int hint_amount=0x7f040005;
public static final int hint_calculate=0x7f040006;
public static final int hint_interest=0x7f040007;
public static final int hint_months=0x7f040008;
public static final int label_amount=0x7f040009;
public static final int label_cost=0x7f04000a;
public static final int label_interest=0x7f04000b;
public static final int label_months=0x7f04000c;
public static final int label_payment=0x7f04000d;
public static final int label_version=0x7f04000e;
public static final int menu_about=0x7f04000f;
}
public static final class style {
public static final int Emprunt=0x7f050000;
}
}

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<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<stroke android:width="1px" android:color="#D6DBD6" />
<solid android:color="@android:color/white" />
<padding android:left="7dp" android:top="7dp"
android:right="7dp" android:bottom="7dp" />
<corners android:radius="4dp" />
</shape>

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<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" >
<gradient
android:angle="270"
android:endColor="#016701"
android:startColor="#359D3A" />
<corners android:radius="0dp" />
</shape>

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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center_vertical"
android:orientation="vertical" >
<TextView
android:id="@+id/titleBar"
android:layout_width="fill_parent"
android:layout_height="45dip"
android:background="@drawable/green_gradient"
android:gravity="center_vertical"
android:paddingLeft="10dip"
android:shadowColor="#000000"
android:shadowDx="2"
android:shadowDy="2"
android:shadowRadius="1.5"
android:text="@string/app_name"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="@android:color/white" />
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:paddingTop="10dp" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/label_amount"
android:textAppearance="?android:attr/textAppearanceMedium" >
</TextView>
<EditText
android:id="@+id/amount"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/hint_amount"
android:inputType="number"
android:textColorHint="#FFCCCCCC" >
<requestFocus />
</EditText>
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/label_interest"
android:textAppearance="?android:attr/textAppearanceMedium" >
</TextView>
<EditText
android:id="@+id/interest"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/hint_interest"
android:inputType="numberDecimal"
android:textColorHint="#FFCCCCCC" >
</EditText>
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/label_months"
android:textAppearance="?android:attr/textAppearanceMedium" >
</TextView>
<EditText
android:id="@+id/months"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/hint_months"
android:inputType="number"
android:textColorHint="#FFCCCCCC" >
</EditText>
<Button
android:id="@+id/calculate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="30dp"
android:layout_marginTop="30dp"
android:drawableLeft="@drawable/icon"
android:drawablePadding="5dp"
android:paddingLeft="10dp"
android:paddingRight="15dp"
android:text="@string/btn_calculate"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textStyle="bold" >
</Button>
<TableLayout
android:id="@+id/tableLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="3dp"
android:background="@drawable/border" >
<TableRow
android:id="@+id/tableRow1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingRight="10dp"
android:text="@string/label_payment"
android:textAppearance="?android:attr/textAppearanceMedium" >
</TextView>
<TextView
android:id="@+id/payment"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:gravity="right"
android:text="@string/hint_calculate"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#FFCCCCCC" >
</TextView>
</TableRow>
<TableRow
android:id="@+id/tableRow2"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/textView6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingRight="10dp"
android:text="@string/label_cost"
android:textAppearance="?android:attr/textAppearanceMedium" >
</TextView>
<TextView
android:id="@+id/cost"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:gravity="right"
android:text="@string/hint_calculate"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#FFCCCCCC" >
</TextView>
</TableRow>
</TableLayout>
</LinearLayout>
</LinearLayout>

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res/values-fr/strings.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">Emprunt</string>
<string name="about_copyright">© 2011&#8211;12 Erik C. Thauvin.\nTous droits réservés.\n\nhttp://m.thauvin.net/android/</string>
<string name="about_copyright_blackberry">© 2011&#8211;12 Erik C. Thauvin.\nTous droits réservés.\n\nhttp://m.thauvin.net/blackberry/</string>
<string name="about_title">À propos d\'</string>
<string name="btn_calculate">Calculer</string>
<string name="hint_amount">ex. 100000</string>
<string name="hint_calculate">à calculer&#8230;</string>
<string name="hint_interest">ex. 5.2</string>
<string name="hint_months">ex. 240</string>
<string name="label_amount">Montant emprunté:</string>
<string name="label_cost">Coût total:</string>
<string name="label_interest">Taux d\'intérêt:</string>
<string name="label_months">Nombre de mensualités:</string>
<string name="label_payment">Mensualité:</string>
<string name="label_version">Version:</string>
<string name="menu_about">À propos</string>
</resources>

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res/values-v11/themes.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="Emprunt" parent="@android:style/Theme.Holo.Light" />
</resources>

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res/values/strings.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">Loan</string>
<string name="about_copyright">© 2011&#8211;12 Erik C. Thauvin.\nAll Rights Reserved.\n\nhttp://m.thauvin.net/android/</string>
<string name="about_copyright_blackberry">© 2011&#8211;12 Erik C. Thauvin.\nAll Rights Reserved.\n\nhttp://m.thauvin.net/blackberry/</string>
<string name="about_title">About </string>
<string name="btn_calculate">Calculate</string>
<string name="hint_amount">e.g. 100000</string>
<string name="hint_calculate">to be calculated&#8230;</string>
<string name="hint_interest">e.g. 5.2</string>
<string name="hint_months">e.g. 240</string>
<string name="label_amount">Loan Amount:</string>
<string name="label_cost">Total Cost:</string>
<string name="label_interest">Interest Rate:</string>
<string name="label_months">Number of Months:</string>
<string name="label_payment">Payment:</string>
<string name="label_version">Version:</string>
<string name="menu_about">About</string>
</resources>

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<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="Emprunt" parent="@android:style/Theme.Light.NoTitleBar" />
</resources>

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src/net/thauvin/erik/android/emprunt/AboutDialogBuilder.java Normal file
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/*
* @(#)AboutDialogBuilder.java
*
* $Id$
*
*/
package net.thauvin.erik.android.emprunt;
import android.app.AlertDialog;
import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.graphics.Color;
import android.text.SpannableString;
import android.text.util.Linkify;
import android.util.DisplayMetrics;
import android.view.WindowManager;
import android.widget.TextView;
/**
* The <code>AboutDialogBuilder</code> class implements a simple "About" dialog.
*
* @author <a href="http://itkrauts.com/archives/26-Creating-a-simple-About-Dialog-in-Android-1.6.html">Sebastian Bauer</a>
* @author <a href="mailto:erik@thauvin.net">Erik C. Thauvin</a>
* @version $Revision$
* @created October 14, 2011
* @since 1.0
*/
public class AboutDialogBuilder
{
public static AlertDialog create(Context context) throws NameNotFoundException
{
// Try to load the a package matching the name of our own package
final PackageInfo pInfo = context.getPackageManager().getPackageInfo(context.getPackageName(), PackageManager.GET_META_DATA);
final String versionInfo = pInfo.versionName;
final String aboutTitle = String.format("%s%s", context.getString(R.string.about_title), context.getString(R.string.app_name));
final String versionString = String.format("%s %s", context.getString(R.string.label_version), versionInfo);
// Set up the TextView
final TextView message = new TextView(context);
// message.setTextSize(18);
message.setTextAppearance(context, android.R.style.TextAppearance_Medium);
message.setBackgroundColor(Color.WHITE);
// We'll use a spannablestring to be able to make links clickable
final SpannableString s;
if (System.getProperty("os.name").equalsIgnoreCase("qnx"))
{
s = new SpannableString(context.getString(R.string.about_copyright_blackberry));
}
else
{
s = new SpannableString(context.getString(R.string.about_copyright));
}
// Get screen metrics
final DisplayMetrics metrics = new DisplayMetrics();
((WindowManager) context.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay().getMetrics(metrics);
// Set some padding
final int pad = (int) ((10 / metrics.density) + 0.5f);
message.setPadding(pad, pad, pad, pad * 2);
// Set up the final string
message.setText(versionString + "\n\n" + s);
// Now linkify the text
Linkify.addLinks(message, Linkify.ALL);
return new AlertDialog.Builder(context).setTitle(aboutTitle).setCancelable(true).setIcon(R.drawable.icon)
.setPositiveButton(context.getString(android.R.string.ok), null).setView(message).create();
}
}

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src/net/thauvin/erik/android/emprunt/EmpruntActivity.java Normal file
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/*
* @(#)EmpruntActivity.java
*
* Copyright (c) 2011-2012 Erik C. Thauvin (http://erik.thauvin.net/)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the authors nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id$
*
*/
package net.thauvin.erik.android.emprunt;
import java.text.NumberFormat;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.pm.PackageManager.NameNotFoundException;
import android.graphics.Color;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.os.Bundle;
import android.text.Editable;
import android.text.Spannable;
import android.text.TextWatcher;
import android.text.style.StyleSpan;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;
/**
* The <code>EmpruntActivity</code> class implements a simple loan payment calculator.
*
* @author <a href="mailto:erik@thauvin.net">Erik C. Thauvin</a>
* @version $Revision$
* @created October 14, 2011
* @since 1.0
*/
public class EmpruntActivity extends Activity
{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final TextView titleBar = (TextView) findViewById(R.id.titleBar);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB)
{
titleBar.setLayoutParams(new LinearLayout.LayoutParams(0, 0, 0));
titleBar.setVisibility(View.INVISIBLE);
}
final TextView paymentFld = (TextView) findViewById(R.id.payment);
final TextView costFld = (TextView) findViewById(R.id.cost);
final EditText amountFld = ((EditText) findViewById(R.id.amount));
final EditText interestFld = ((EditText) findViewById(R.id.interest));
final EditText monthsFld = ((EditText) findViewById(R.id.months));
final Drawable imgX = getResources().getDrawable(android.R.drawable.presence_offline);
final TextWatcher tw = new TextWatcher()
{
@Override
public void onTextChanged(CharSequence s, int start, int before, int count)
{
amountFld.setTextColor(Color.BLACK);
interestFld.setTextColor(Color.BLACK);
monthsFld.setTextColor(Color.BLACK);
paymentFld.setText(R.string.hint_calculate);
paymentFld.setTextColor(Color.LTGRAY);
costFld.setText(R.string.hint_calculate);
costFld.setTextColor(Color.LTGRAY);
manageClearButton(amountFld, imgX);
manageClearButton(interestFld, imgX);
manageClearButton(monthsFld, imgX);
}
@Override
public void afterTextChanged(Editable s)
{
// TODO Auto-generated method stub
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after)
{
// TODO Auto-generated method stub
}
};
amountFld.addTextChangedListener(tw);
interestFld.addTextChangedListener(tw);
monthsFld.addTextChangedListener(tw);
amountFld.setOnTouchListener(buildOnTouchListener(amountFld, imgX));
interestFld.setOnTouchListener(buildOnTouchListener(interestFld, imgX));
monthsFld.setOnTouchListener(buildOnTouchListener(monthsFld, imgX));
final InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
final Button button = (Button) findViewById(R.id.calculate);
button.setOnClickListener(new View.OnClickListener()
{
public void onClick(View v)
{
// Hide the soft keyboard
imm.hideSoftInputFromWindow(button.getApplicationWindowToken(), 0);
final String amount = amountFld.getText().toString();
final String interest = interestFld.getText().toString();
final String months = monthsFld.getText().toString();
if (amount.isEmpty())
{
amountFld.requestFocus();
}
else if (interest.isEmpty())
{
interestFld.requestFocus();
}
else if (months.isEmpty())
{
monthsFld.requestFocus();
}
else
{
amountFld.requestFocus();
final int capital = Integer.valueOf(amount);
if (capital > 0)
{
final double rate = Double.valueOf(interest);
if (rate > 0)
{
final int term = Integer.valueOf(months);
if (term > 0)
{
final double mrate = (rate / 100) / 12;
final double payment = (capital * mrate) / (1 - Math.pow((1 + mrate), -term));
final double cost = (payment * term) - capital;
final Editable s = Editable.Factory.getInstance().newEditable(
NumberFormat.getCurrencyInstance().format(payment));
s.setSpan(new StyleSpan(android.graphics.Typeface.BOLD), 0, s.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
paymentFld.setTextColor(Color.BLACK);
paymentFld.setText(s);
costFld.setTextColor(Color.BLACK);
costFld.setText(NumberFormat.getCurrencyInstance().format(cost));
}
else
{
monthsFld.setTextColor(Color.RED);
monthsFld.requestFocus();
}
}
else
{
interestFld.setTextColor(Color.RED);
interestFld.requestFocus();
}
}
else
{
amountFld.setTextColor(Color.RED);
amountFld.requestFocus();
}
}
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu)
{
menu.add(0, 0, 0, R.string.menu_about).setIcon(android.R.drawable.ic_menu_info_details);
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item)
{
if (item.getItemId() == 0)
{
AlertDialog builder;
try
{
builder = AboutDialogBuilder.create(this);
builder.show();
}
catch (NameNotFoundException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return true;
}
/**
* Manages the clear button.
*
* @param view The text view.
* @param img The image.
*/
private void manageClearButton(TextView view, Drawable img)
{
if (view.getText().toString().equals(""))
{
view.setCompoundDrawablesWithIntrinsicBounds(view.getCompoundDrawables()[0], view.getCompoundDrawables()[1], null,
view.getCompoundDrawables()[3]);
}
else
{
view.setCompoundDrawablesWithIntrinsicBounds(view.getCompoundDrawables()[0], view.getCompoundDrawables()[1], img,
view.getCompoundDrawables()[3]);
}
}
/**
* Builds OnTouchListener for clear buttons.
*
* @param field The EditText field.
* @return A new OnTouchListener.
*/
private OnTouchListener buildOnTouchListener(final EditText field, final Drawable img)
{
return new OnTouchListener()
{
@Override
public boolean onTouch(View v, MotionEvent event)
{
// Is there an X showing?
if (field.getCompoundDrawables()[2] == null)
{
return false;
}
// Only do this for up touches
if (event.getAction() != MotionEvent.ACTION_UP)
{
return false;
}
// Is touch one of our clear buttons?
if (event.getX() > field.getWidth() - field.getPaddingRight() - img.getIntrinsicWidth())
{
field.requestFocusFromTouch();
field.setText("");
}
return false;
}
};
}
}