我用两个按钮编写了一个Android
小部件。如果我开始"活动"一切正常,我可以点击这些按钮。但如果我锁定手机,过程会在几秒钟后死亡
我尝试再次点击这些按钮,没有发生,LOGCAT
除外:
I/ActivityManager: filter receiver for action = ButtonRefresh
updateAppWidget
,通过@Override onUpdate(...)
调用:
private final static String BUTTON_REFRESH = "ButtonRefresh";
public static void updateAppWidget(final Context context, final AppWidgetManager appWidgetManager,
final int appWidgetId) {
final RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.myclasslayout);
//Click listener depending on @this (getPendingSelfIntent)
views.setOnClickPendingIntent(R.id.button_refresh, getPendingSelfIntent(context, BUTTON_REFRESH));
[...]
appWidgetManager.updateAppWidget(appWidgetId, views);
}
getPendingSelfIntent()
:
private static PendingIntent getPendingSelfIntent(Context context, String action) {
Intent intent = new Intent(context, MyClass.class);
intent.setAction(action);
return PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
}
onReceive()
:
@Override
public void onReceive(Context context, Intent intent) {
super.onReceive(context, intent);
if (BUTTON_REFRESH.equals(intent.getAction())) {
Log.i("MyLogtag", "Refresh"); //This never shows up in LOGCAT
}
}
AndroidManifest.xml
:
[...]
<receiver android:name=".MyClass">
<intent-filter>
<action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
</intent-filter>
<meta-data
android:name="android.appwidget.provider"
android:resource="@xml/myclass_info" />
</receiver>
[...]
当应用进程为dead
时,onReceive 从不被调用...
答案 0 :(得分:0)
我明白了......
我必须改变
private final static String BUTTON_REFRESH = "ButtonRefresh";
到
private final static String BUTTON_REFRESH = "com.example.mypackage.BUTTON_REFRESH";
和AndroidManifest
:
<receiver android:name=".MyClass">
<intent-filter>
<action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
<action android:name="com.example.mypackage.BUTTON_REFRESH"/>
</intent-filter>
<meta-data
android:name="android.appwidget.provider"
android:resource="@xml/myclass_info" />
</receiver>