AppWidgetProvider问题

发布于 2024-11-26 07:01:40 字数 1420 浏览 1 评论 0原文

我有一个 AppWidgetProvider，当小部件首次添加到主屏幕时，我需要进行一些初始化。据我所知，执行此操作的位置是在 onEnabled(Context context) 方法中。我的问题是这个方法永远不会被调用（据我在 logcat 中看到的）。

这是我的代码：

public class MyMonitorWidget extends AppWidgetProvider{

    @Override
    public void onEnabled(Context context) {
        super.onEnabled(context);

        Log.v("LOG", "Widget onEnabled");
        Intent intentToFire = new Intent(UpdateAlarmReceiver.ACTION_UPDATE_ALARM); 
        context.sendBroadcast(intentToFire);
    } 
...
}

和我的 appwidget-provider xml：

<?xml version="1.0" encoding="utf-8"?>
<appwidget-provider
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:initialLayout="@layout/widget_layout"
  android:minWidth="146dp" 
  android:minHeight="74dp"
  android:label="Monitor Widget"
  />

以及清单中：

<receiver android:name="MyMonitorWidget" android:label="Monitor Widget">
        <intent-filter>
            <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
        </intent-filter>
        <intent-filter>
        <action android:name="com.android.myMonitor.ACTION_NOTIFY_WIDGET"/>
        </intent-filter>
        <meta-data android:name="android.appwidget.provider" 
        android:resource="@xml/monitor_widget_info"/>
    </receiver>

您认为问题是什么？

原文

I have an AppWidgetProvider, and I need to do some initialization when a widget is first added to the home screen. I understand that the place to do it is in the onEnabled(Context context) method. My Problem is that this method is never called (As far as I can see in the logcat).

Here is my code:

public class MyMonitorWidget extends AppWidgetProvider{

    @Override
    public void onEnabled(Context context) {
        super.onEnabled(context);

        Log.v("LOG", "Widget onEnabled");
        Intent intentToFire = new Intent(UpdateAlarmReceiver.ACTION_UPDATE_ALARM); 
        context.sendBroadcast(intentToFire);
    } 
...
}

And my appwidget-provider xml:

<?xml version="1.0" encoding="utf-8"?>
<appwidget-provider
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:initialLayout="@layout/widget_layout"
  android:minWidth="146dp" 
  android:minHeight="74dp"
  android:label="Monitor Widget"
  />

and in the manifest:

<receiver android:name="MyMonitorWidget" android:label="Monitor Widget">
        <intent-filter>
            <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
        </intent-filter>
        <intent-filter>
        <action android:name="com.android.myMonitor.ACTION_NOTIFY_WIDGET"/>
        </intent-filter>
        <meta-data android:name="android.appwidget.provider" 
        android:resource="@xml/monitor_widget_info"/>
    </receiver>

What do you think is the problem?

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满栀 2024-12-03 07:01:40

您需要添加 android.appwidget.action.APPWIDGET_ENABLED 作为另一个操作：

    <intent-filter>
        <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
        <action android:name="android.appwidget.action.APPWIDGET_ENABLED" />
    </intent-filter>

否则，您将不会收到触发 onEnabled() 的广播。

You need to add android.appwidget.action.APPWIDGET_ENABLED as another action:

    <intent-filter>
        <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
        <action android:name="android.appwidget.action.APPWIDGET_ENABLED" />
    </intent-filter>

Without that, you will not receive the broadcast that triggers onEnabled().

回复收藏 0 原文

为人所爱 2024-12-03 07:01:40

不要忘记 android:exported 属性！当 android:exported 为 false 时，我没有收到 onDelete()

<receiver 
    ...
    android:exported="true"
    ... >
    <intent-filter>
        <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
        <action android:name="android.appwidget.action.APPWIDGET_DELETED" />
        <action android:name="android.appwidget.action.APPWIDGET_ENABLED" />
        <action android:name="android.appwidget.action.APPWIDGET_DISABLED" />
    </intent-filter>

    <meta-data 
        android:name="android.appwidget.provider"
        android:resource=... />
</receiver>

Don't forget about android:exported property! I didn't receive onDelete() when android:exported was false

<receiver 
    ...
    android:exported="true"
    ... >
    <intent-filter>
        <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
        <action android:name="android.appwidget.action.APPWIDGET_DELETED" />
        <action android:name="android.appwidget.action.APPWIDGET_ENABLED" />
        <action android:name="android.appwidget.action.APPWIDGET_DISABLED" />
    </intent-filter>

    <meta-data 
        android:name="android.appwidget.provider"
        android:resource=... />
</receiver>

回复收藏 0 原文

~没有更多了~