解析service（二）

1.新建工程TestServiceHolder

2.设置main.xml

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" /> <Button android:id="@+id/start_service" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Start Service" /> <Button android:id="@+id/stop_service" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Stop Service" /> <Button android:id="@+id/bind_service" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Bind Service" /> <Button android:id="@+id/unbind_service" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Unbind Service" /> </LinearLayout>

3.新建TestService.java

package com.iceskysl.TestServiceHolder; import android.app.Notification; import android.app.NotificationManager; import android.app.PendingIntent; import android.app.Service; import android.content.Intent; import android.os.Binder; import android.os.IBinder; import android.util.Log; public class TestService extends Service { private static final String TAG = "TestService"; private NotificationManager _nm; @Override public IBinder onBind(Intent i) { Log.e(TAG, "============> TestService.onBind"); return null; } public class LocalBinder extends Binder { TestService getService() { return TestService.this; } } @Override public boolean onUnbind(Intent i) { Log.e(TAG, "============> TestService.onUnbind"); return false; } @Override public void onRebind(Intent i) { Log.e(TAG, "============> TestService.onRebind"); } @Override public void onCreate() { Log.e(TAG, "============> TestService.onCreate"); _nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE); showNotification(); } @Override public void onStart(Intent intent, int startId) { Log.e(TAG, "============> TestService.onStart"); } @Override public void onDestroy() { _nm.cancel(R.string.service_started); Log.e(TAG, "============> TestService.onDestroy"); } private void showNotification() { Notification notification = new Notification(R.drawable.face_1, "Service started", System.currentTimeMillis()); PendingIntent contentIntent = PendingIntent.getActivity(this, 0, new Intent(this, TestServiceHolder.class), 0); // must set this for content view, or will throw a exception notification.setLatestEventInfo(this, "Test Service", "Service started", contentIntent); _nm.notify(R.string.service_started, notification); } }

4.修改TestServiceHolder.java

package com.iceskysl.TestServiceHolder; import android.app.Activity; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.ServiceConnection; import android.os.Bundle; import android.os.IBinder; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.Toast; public class TestServiceHolder extends Activity { private boolean _isBound; private TestService _boundService; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); //设置标题名 //setTitle("Service Test"); initButtons(); } private ServiceConnection _connection = new ServiceConnection() { public void onServiceConnected(ComponentName className, IBinder service) { _boundService = ((TestService.LocalBinder)service).getService(); //Toast.makeText(TestServiceHolder.this, "Service connected", Toast.LENGTH_SHORT).show(); } public void onServiceDisconnected(ComponentName className) { // unexpectedly disconnected,we should never see this happen. _boundService = null; //Toast.makeText(TestServiceHolder.this, "Service connected", ast.LENGTH_SHORT).show(); } }; private void initButtons() { Button buttonStart = (Button) findViewById(R.id.start_service); buttonStart.setOnClickListener(new OnClickListener() { public void onClick(View arg0) { startService(); Toast.makeText(TestServiceHolder.this, "Service connected", Toast.LENGTH_SHORT).show(); } }); Button buttonStop = (Button) findViewById(R.id.stop_service); buttonStop.setOnClickListener(new OnClickListener() { public void onClick(View arg0) { stopService(); } }); Button buttonBind = (Button) findViewById(R.id.bind_service); buttonBind.setOnClickListener(new OnClickListener() { public void onClick(View arg0) { bindService(); Toast.makeText(TestServiceHolder.this, "Service connected", Toast.LENGTH_SHORT).show(); } }); Button buttonUnbind = (Button) findViewById(R.id.unbind_service); buttonUnbind.setOnClickListener(new OnClickListener() { public void onClick(View arg0) { unbindService(); } }); } private void startService() { Intent i = new Intent(this, TestService.class); this.startService(i); } private void stopService() { Intent i = new Intent(this, TestService.class); this.stopService(i); } private void bindService() { Intent i = new Intent(this, TestService.class); bindService(i, _connection, Context.BIND_AUTO_CREATE); _isBound = true; } private void unbindService() { if (_isBound) { unbindService(_connection); _isBound = false; } } }

5.添加资源/res/values/strings.xml

<string name="service_started">Service Started</string>

6.注册service

<service android:enabled="true" android:name=".TestService" android:process=":remote" />