[代码] main.xml
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<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:orientation="vertical"
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android:layout_width="fill_parent"
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android:layout_height="fill_parent"
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>
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<TextView
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android:layout_width="fill_parent"
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android:layout_height="wrap_content"
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android:text="@string/hello"
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/>
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<Button
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android:id="@+id/startalarm"
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android:layout_width="fill_parent"
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android:layout_height="wrap_content"
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android:text="Start"
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/>
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<Button
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android:id="@+id/cancelalarm"
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android:layout_width="fill_parent"
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android:layout_height="wrap_content"
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android:text="Cancel"
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/>
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</LinearLayout>
[代码] AndroidAlarmService.java
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package com.exercise.AndroidAlarmService;
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import java.util.Calendar;
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import android.app.Activity;
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import android.app.AlarmManager;
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import android.app.PendingIntent;
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import android.content.Intent;
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import android.os.Bundle;
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import android.os.SystemClock;
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import android.view.View;
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import android.widget.Button;
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import android.widget.Toast;
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public class AndroidAlarmService extends Activity {
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private PendingIntent pendingIntent;
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/** Called when the activity is first created. */
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.main);
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Button buttonStart = (Button)findViewById(R.id.startalarm);
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Button buttonCancel = (Button)findViewById(R.id.cancelalarm);
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buttonStart.setOnClickListener(new Button.OnClickListener(){
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@Override
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public void onClick(View arg0) {
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// TODO Auto-generated method stub
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Intent myIntent = new Intent(AndroidAlarmService.this, MyAlarmService.class);
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pendingIntent = PendingIntent.getService(AndroidAlarmService.this, 0, myIntent, 0);
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AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
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Calendar calendar = Calendar.getInstance();
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calendar.setTimeInMillis(System.currentTimeMillis());
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calendar.add(Calendar.SECOND, 10);
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alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);
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Toast.makeText(AndroidAlarmService.this, "Start Alarm", Toast.LENGTH_LONG).show();
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}});
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buttonCancel.setOnClickListener(new Button.OnClickListener(){
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@Override
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public void onClick(View arg0) {
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// TODO Auto-generated method stub
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AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
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alarmManager.cancel(pendingIntent);
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// Tell the user about what we did.
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Toast.makeText(AndroidAlarmService.this, "Cancel!", Toast.LENGTH_LONG).show();
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}});
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}
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}
[代码] MyAlarmService.java
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package com.exercise.AndroidAlarmService;
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import android.app.Service;
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import android.content.Intent;
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import android.os.IBinder;
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import android.widget.Toast;
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public class MyAlarmService extends Service {
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@Override
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public void onCreate() {
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// TODO Auto-generated method stub
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Toast.makeText(this, "MyAlarmService.onCreate()", Toast.LENGTH_LONG).show();
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}
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@Override
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public IBinder onBind(Intent intent) {
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// TODO Auto-generated method stub
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Toast.makeText(this, "MyAlarmService.onBind()", Toast.LENGTH_LONG).show();
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return null;
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}
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@Override
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public void onDestroy() {
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// TODO Auto-generated method stub
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super.onDestroy();
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Toast.makeText(this, "MyAlarmService.onDestroy()", Toast.LENGTH_LONG).show();
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}
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@Override
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public void onStart(Intent intent, int startId) {
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// TODO Auto-generated method stub
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super.onStart(intent, startId);
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Toast.makeText(this, "MyAlarmService.onStart()", Toast.LENGTH_LONG).show();
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}
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@Override
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public boolean onUnbind(Intent intent) {
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// TODO Auto-generated method stub
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Toast.makeText(this, "MyAlarmService.onUnbind()", Toast.LENGTH_LONG).show();
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return super.onUnbind(intent);
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}
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}
[代码] AndroidManifest.xml
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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.exercise.AndroidAlarmService"
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android:versionCode="1"
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android:versionName="1.0">
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<application android:icon="@drawable/icon" android:label="@string/app_name">
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<activity android:name=".AndroidAlarmService"
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android:label="@string/app_name">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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<service android:name=".MyAlarmService" />
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</application>
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<uses-sdk android:minSdkVersion="4" />
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</manifest>
