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Rewrote Chronometer view so that timer is in a service #1

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Rewrote Chronometer view so that timer is in a service #1

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8b3a780
Moved stopwatch logic into new service.
Jun 28, 2012
683d3be
Removed unused file.
Jun 28, 2012
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47 changes: 24 additions & 23 deletions AndroidManifest.xml
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Original file line number Diff line number Diff line change
@@ -1,24 +1,25 @@
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.psrivastava.stopwatch"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk android:minSdkVersion="14" />

<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@android:style/Theme.Holo.Light.DarkActionBar" >
<activity
android:name=".StopwatchActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.psrivastava.stopwatch"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk android:minSdkVersion="14" />

<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@android:style/Theme.Holo.Light.DarkActionBar" >
<activity
android:name=".StopwatchActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name=".ChronometerService" />
</application>

</manifest>
324 changes: 169 additions & 155 deletions src/com/psrivastava/stopwatch/Chronometer.java
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Original file line number Diff line number Diff line change
@@ -1,156 +1,170 @@
package com.psrivastava.stopwatch;

import java.text.DecimalFormat;

import android.content.Context;
import android.os.Handler;
import android.os.Message;
import android.os.SystemClock;
import android.util.AttributeSet;
import android.widget.TextView;

/* Customized version of Chronometer class
* Original source from Antonis Balasas
* https://github.com/antoniom/Millisecond-Chronometer
*/
public class Chronometer extends TextView {
private static final String TAG = "Chronometer";

public interface OnChronometerTickListener {

void onChronometerTick(Chronometer chronometer);
}

private long mBase;
private boolean mVisible;
private boolean mStarted;
private boolean mRunning;
private OnChronometerTickListener mOnChronometerTickListener;

private static final int TICK_WHAT = 2;

public Chronometer(Context context) {
this(context, null, 0);
}

public Chronometer(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}

public Chronometer(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);

init();
}

private void init() {
mBase = SystemClock.elapsedRealtime();
updateText(mBase);
}

public void setBase(long base) {
mBase = base;
dispatchChronometerTick();
updateText(SystemClock.elapsedRealtime());
}

public long getBase() {
return mBase;
}

public void setOnChronometerTickListener(OnChronometerTickListener listener) {
mOnChronometerTickListener = listener;
}

public OnChronometerTickListener getOnChronometerTickListener() {
return mOnChronometerTickListener;
}

public void start() {
mStarted = true;
updateRunning();
}

public boolean isStarted() {
return mStarted;
}

public void stop() {
mStarted = false;
updateRunning();
}

@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
mVisible = false;
updateRunning();
}

@Override
protected void onWindowVisibilityChanged(int visibility) {
super.onWindowVisibilityChanged(visibility);
mVisible = visibility == VISIBLE;
updateRunning();
}

private synchronized void updateText(long now) {
long timeElapsed = now - mBase;

DecimalFormat df = new DecimalFormat("00");

int hours = (int) (timeElapsed / (3600 * 1000));
int remaining = (int) (timeElapsed % (3600 * 1000));

int minutes = (int) (remaining / (60 * 1000));
remaining = (int) (remaining % (60 * 1000));

int seconds = (int) (remaining / 1000);
remaining = (int) (remaining % (1000));

int milliseconds = (int) (((int) timeElapsed % 1000) / 100);

String text = "";

if (hours > 0) {
text += df.format(hours) + ":";
}

text += df.format(minutes) + ":";
text += df.format(seconds) + ".";
text += Integer.toString(milliseconds);

setText(text);
}

private void updateRunning() {
boolean running = mVisible && mStarted;
if (running != mRunning) {
if (running) {
updateText(SystemClock.elapsedRealtime());
dispatchChronometerTick();
mHandler.sendMessageDelayed(
Message.obtain(mHandler, TICK_WHAT), 100);
} else {
mHandler.removeMessages(TICK_WHAT);
}
mRunning = running;
}
}

private Handler mHandler = new Handler() {
public void handleMessage(Message m) {
if (mRunning) {
updateText(SystemClock.elapsedRealtime());
dispatchChronometerTick();
sendMessageDelayed(Message.obtain(this, TICK_WHAT), 100);
}
}
};

void dispatchChronometerTick() {
if (mOnChronometerTickListener != null) {
mOnChronometerTickListener.onChronometerTick(this);
}
}
package com.psrivastava.stopwatch;

import java.text.DecimalFormat;

import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.os.RemoteException;
import android.util.AttributeSet;
import android.util.Log;
import android.widget.TextView;

/* Gets time from service and displays it.
* Original source from Antonis Balasas
* https://github.com/antoniom/Millisecond-Chronometer
*/
public class Chronometer extends TextView {
private static final String TAG = "Chronometer";

private boolean mRunning;

private static final int TICK_WHAT = 2;

IChronometerService mService;

private ServiceConnection mConnection = new ServiceConnection() {

public void onServiceDisconnected(ComponentName name) {
stopDisplay();
}

public void onServiceConnected(ComponentName name, IBinder service) {
mService = IChronometerService.Stub.asInterface(service);
Log.v(TAG, "Service Connected");
updateText();
startDisplay();
}
};

public Chronometer(Context context) {
this(context, null, 0);
}

public Chronometer(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}

public Chronometer(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
context.getApplicationContext().bindService(new Intent(context, ChronometerService.class), mConnection, Context.BIND_AUTO_CREATE);
}

public void start() {
try {
mService.start();
} catch (RemoteException e) {
Log.e(TAG, "Connection to service failed.", e);
}
startDisplay();
}

public void pause() {
try {
mService.pause();
} catch (RemoteException e) {
Log.e(TAG, "Connection to service failed.", e);
}
stopDisplay();
updateText();
}

public void resume() {
try {
mService.resume();
} catch (RemoteException e) {
Log.e(TAG, "Connection to service failed.", e);
}
startDisplay();
}

public void stop() {
try {
mService.stop();
} catch (RemoteException e) {
Log.e(TAG, "Connection to service failed.", e);
}
stopDisplay();
updateText();
}

@Override
protected void onDetachedFromWindow() {
stopDisplay();
}

@Override
protected void onWindowVisibilityChanged(int visibility) {
if (visibility == VISIBLE) {
startDisplay();
}
else {
stopDisplay();
}
}

/**
* Display elapsed time.
*/
private synchronized void updateText() {

try {
long timeElapsed;
timeElapsed = mService.getTime();

DecimalFormat df = new DecimalFormat("00");

int hours = (int) (timeElapsed / (3600 * 1000));
int remaining = (int) (timeElapsed % (3600 * 1000));

int minutes = (int) (remaining / (60 * 1000));
remaining = (int) (remaining % (60 * 1000));

int seconds = (int) (remaining / 1000);
remaining = (int) (remaining % (1000));

int milliseconds = (int) (((int) timeElapsed % 1000) / 100);

String text = "";

if (hours > 0) {
text += df.format(hours) + ":";
}

text += df.format(minutes) + ":";
text += df.format(seconds) + ".";
text += Integer.toString(milliseconds);

setText(text);
} catch (RemoteException e) {
Log.e(TAG, "Connection to service failed.", e);
}
}

private void startDisplay() {
try {
if (!mRunning && mService != null && mService.isRunning()) {
mHandler.dispatchMessage(Message.obtain(mHandler, TICK_WHAT));
mRunning = true;
}
} catch (RemoteException e) {
Log.e(TAG, "Connection to service failed.", e);
}
}

private void stopDisplay() {
mHandler.removeMessages(TICK_WHAT);
mRunning = false;
}

private Handler mHandler = new Handler() {
public void handleMessage(Message m) {
sendMessageDelayed(Message.obtain(this, TICK_WHAT), 100);
updateText();
}
};
}
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