說明：這個例子實現了Android中常見的許多服務，下面是實現的截圖
接下來，以源代碼的方式分析這個例子
1.MainActivity--主界面
這個類主要是實現用戶所看到的這個Activity，其中包含了一系列的按鈕，用戶點擊按鈕執行相應的動作，所以在這個類中主要是對按鈕的定義和對按鈕綁定相應的監聽器，下面是實現的代碼：
package lovefang.stadyService;
import android.app.Activity;
import android.os.Bundle;
import android.widget.Button;
import android.view.View;
import android.content.Intent;
import android.util.Log;
/**這是使用後台服務的學習例子*/
public class MainStadyServics extends Activity {
/**參數設置*/
Button startServiceButton;// 啟動服務按鈕
Button shutDownServiceButton;// 關閉服務按鈕
Button startBindServiceButton;// 啟動綁定服務按鈕
Button sendBroadcast;// 使用廣播
Button notificationButton;// 使用通知功能
Button alarmButton;// 使用鬧鐘
Button handlerButton;// 使用handler
Button asyncButton;// 使用異步加載
Button phoneStateButton;// 查看手機狀態
Button callphoneButton;// 撥打電話
Button vibratorButton;// 使用震動
CountService countService;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.v("MainStadyServics", "setContentView");
setContentView(R.layout.main);
getWidget();
regiestListener();
}
/**獲得組件*/
public void getWidget(){
startServiceButton = (Button)findViewById(R.id.startServerButton);
startBindServiceButton = (Button)findViewById(R.id.startBindServerButton);
shutDownServiceButton = (Button)findViewById(R.id.sutdownServerButton);
sendBroadcast = (Button)findViewById(R.id.sendBroadcast);
notificationButton = (Button)findViewById(R.id.notification);
alarmButton = (Button)findViewById(R.id.alarm);
handlerButton = (Button)findViewById(R.id.handler);
asyncButton = (Button)findViewById(R.id.async);
phoneStateButton = (Button) findViewById(R.id.phonestate);
callphoneButton = (Button) findViewById(R.id.callphone);
vibratorButton = (Button) findViewById(R.id.vibrator);
}
/**為按鈕添加監聽*/
public void regiestListener(){
startServiceButton.setOnClickListener(startService);
shutDownServiceButton.setOnClickListener(shutdownService);
startBindServiceButton.setOnClickListener(startBinderService);
sendBroadcast.setOnClickListener(broadcastReceiver);
notificationButton.setOnClickListener(notification);
alarmButton.setOnClickListener(startAlarm);
handlerButton.setOnClickListener(handler);
asyncButton.setOnClickListener(async);
phoneStateButton.setOnClickListener(phonestate);
callphoneButton.setOnClickListener(callphoneEvent);
vibratorButton.setOnClickListener(vibrator);
}
/**啟動服務的事件監聽*/
public Button.OnClickListener startService = new Button.OnClickListener(){
public void onClick(View view){
/**單擊按鈕時啟動服務*/
Intent intent = new Intent(MainStadyServics.this,CountService.class);
startService(intent);
Log.v("MainStadyServics", "start Service");
}
};
/**關閉服務*/
public Button.OnClickListener shutdownService = new Button.OnClickListener(){
public void onClick(View view){
/**單擊按鈕時啟動服務*/
Intent intent = new Intent(MainStadyServics.this,CountService.class);
/**退出Activity是，停止服務*/
stopService(intent);
Log.v("MainStadyServics", "shutDown serveice");
}
};
/**打開綁定服務的Activity*/
public Button.OnClickListener startBinderService = new Button.OnClickListener(){
public void onClick(View view){
/**單擊按鈕時啟動服務*/
Intent intent = new Intent(MainStadyServics.this,UseBrider.class);
startActivity(intent);
Log.v("MainStadyServics", "start Binder Service");
}
};
/**打開廣播學習的按鈕*/
public Button.OnClickListener broadcastReceiver = new Button.OnClickListener(){
public void onClick(View view){
Intent intent = new Intent(MainStadyServics.this,UseBroadcast.class);
startActivity(intent);
Log.v("MainStadyServics","start broadcast");
}
};
/**打開通知*/
public Button.OnClickListener notification = new Button.OnClickListener(){
public void onClick(View view){
Intent intent = new Intent(MainStadyServics.this, UseNotification.class);
startActivity(intent);
Log.v("MainStadyService ","start Notification");
}
};
/**使用鬧鐘*/
public Button.OnClickListener startAlarm = new Button.OnClickListener(){
public void onClick(View view){
Intent intent = new Intent(MainStadyServics.this, UseAlarmManager.class);
startActivity(intent);
Log.v("MainStadyService ","start alarm");
}
};
public Button.OnClickListener handler= new Button.OnClickListener(){
public void onClick(View view){
Intent intent = new Intent(MainStadyServics.this, UseHandleMessage.class);
startActivity(intent);
Log.v("MainStadyService ","start handle");
}
};
public Button.OnClickListener async= new Button.OnClickListener(){
public void onClick(View view){
Intent intent = new Intent(MainStadyServics.this, UseAsyncTask.class);
startActivity(intent);
Log.v("MainStadyService ","start handle");
}
};
public Button.OnClickListener phonestate= new Button.OnClickListener(){
public void onClick(View view){
Intent intent = new Intent(MainStadyServics.this, UsePhoneState.class);
startActivity(intent);
Log.v("MainStadyService ","start phonestate");
}
};
public Button.OnClickListener callphoneEvent= new Button.OnClickListener(){
public void onClick(View view){
Intent intent = new Intent(MainStadyServics.this, UseActionCall.class);
startActivity(intent);
Log.v("MainStadyService ","start callphone");
}
};
public Button.OnClickListener vibrator= new Button.OnClickListener(){
public void onClick(View view){
Intent intent = new Intent(MainStadyServics.this, UseVibrator.class);
startActivity(intent);
Log.v("MainStadyService ","start callphone");
}
};
/***/
protected void onDestroy(){
super.onDestroy();
Intent intent = new Intent(MainStadyServics.this,CountService.class);
/**退出Activity是，停止服務*/
stopService(intent);
}
}