1.首先開機啟動後系統會發出一個Standard Broadcast Action,名字叫android.intent.action.BOOT_COMPLETED,這個Action只會發出一次。
2.構造一個IntentReceiver類,重構其抽象方法onReceiveIntent(Context context, Intent intent),在其中啟動你想要啟動的Service。
3.在AndroidManifest.xml中,首先加入 來獲得BOOT_COMPLETED的使用許可,然後註冊前面重構的IntentReceiver類,在其中加入 ,以使其能捕捉到這個Action。
Java代碼
- <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
- <receiver android:name=".OlympicsReceiver" android:label="@string/app_name">
- <intent-filter>
- <action android:name="android.intent.action.BOOT_COMPLETED" />
- <category android:name="android.intent.category.LAUNCHER" />
- </intent-filter>
- </receiver>
Java代碼
- public class OlympicsReceiver extends IntentReceiver
- {
- /*要接收的intent源*/
- static final String ACTION = "android.intent.action.BOOT_COMPLETED";
-
- public void onReceiveIntent(Context context, Intent intent)
- {
- if (intent.getAction().equals(ACTION))
- {
- context.startService(new Intent(context,
- OlympicsService.class), null);//啟動倒計時服務
- Toast.makeText(context, "OlympicsReminder service has started!", Toast.LENGTH_LONG)
- .show();
- }
- }
- }
注意:現在的IntentReceiver已經變為BroadcastReceiver,OnReceiveIntent為onReceive。所以java這邊的代碼為:
(也可以實現應用程式開機自動啟動)
Java代碼
- public class OlympicsReceiver extends BroadcastReceiver
- {
- /*要接收的intent源*/
- static final String ACTION = "android.intent.action.BOOT_COMPLETED";
-
- public void onReceive(Context context, Intent intent)
- {
- if (intent.getAction().equals(ACTION))
- {
- context.startService(new Intent(context,
- OlympicsService.class), null);//啟動倒計時服務
- Toast.makeText(context, "OlympicsReminder service has started!", Toast.LENGTH_LONG)
- .show();
- //這邊可以添加開機自動啟動的應用程式代碼
- }
- }
- }