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<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"></uses-permission>來獲得BOOT_COMPLETED的使用許可,然後注冊前面重構的IntentReceiver類,在其<intent-filter>中加入<action android:name="android.intent.action.BOOT_COMPLETED" /> ,以使其能捕捉到這個Action。一個例子
XML:<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"></uses-permission>
<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: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:
(也可以實現應用程序開機自動啟動)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序代碼
}
}
}