为什么我手动更新的 App Widgets 没有更新?

Why are my manually updated AppWidgets not updating?

我有两个小部件:一个叫做“NoteWidget”,是一个普通的应用程序小部件,具有配置Activity。每当我第一次设置它时,它都会调用 onUpdate(),但它再也不会调用了。

另一个是“UpcomingWidget”,这个是 Collection Widget,但是因为这个没有 Configuration Activity,onUpdate() 永远不会被调用。

这很奇怪,因为它曾经在我只有 NoteWidget 时工作,甚至在我开始实现 UpcomingWidget 时,但在某个时候它停止工作了。

我使用 refreshWidgets() 方法手动更新所有小部件。它确实被调用,但 onUpdate() 不在任何小部件提供程序中 class:

fun refreshWidgets(context: Context) {
    val manager = AppWidgetManager.getInstance(context)
    val noteIntent = Intent(context, NoteWidget::class.java)
    val upcomingIntent = Intent(context, UpcomingWidget::class.java)
    noteIntent.action = AppWidgetManager.ACTION_APPWIDGET_UPDATE
    upcomingIntent.action = AppWidgetManager.ACTION_APPWIDGET_UPDATE
    val noteIds = manager.getAppWidgetIds(ComponentName(context, NoteWidget::class.java))
    val upcomingIds = manager.getAppWidgetIds(ComponentName(context, UpcomingWidget::class.java))

    noteIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, noteIds)
    upcomingIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, upcomingIds)
    context.sendBroadcast(noteIntent)
    context.sendBroadcast(upcomingIntent)
}

AndroidManifest.xml

<receiver android:name=".widgets.NoteWidget" android:label="@string/note_widget">
            <intent-filter>
                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
            </intent-filter>

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

        <receiver android:name=".widgets.UpcomingWidget" android:label="@string/upcoming_widget">
            <intent-filter>
                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
            </intent-filter>

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

        <service
            android:name=".widgets.UpcomingWidgetService"
            android:permission="android.permission.BIND_REMOTEVIEWS" />

        <activity android:name=".activities.NotePicker">
            <intent-filter>
                <action android:name="android.appwidget.action.APPWIDGET_CONFIGURE" />
            </intent-filter>
        </activity>

note_widget_info.xml

<?xml version="1.0" encoding="utf-8"?>
<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
    android:initialKeyguardLayout="@layout/note_widget"
    android:initialLayout="@layout/note_widget"
    android:minWidth="110dp"
    android:minHeight="110dp"
    android:minResizeHeight="110dp"
    android:minResizeWidth="110dp"
    android:previewImage="@drawable/example_appwidget_preview"
    android:resizeMode="horizontal|vertical"
    android:updatePeriodMillis="0"
    android:widgetCategory="home_screen"
    android:configure="com.byteseb.grafobook.activities.NotePicker"/>

upcoming_widget_info.xml

<?xml version="1.0" encoding="utf-8"?>
<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
    android:initialKeyguardLayout="@layout/upcoming_widget"
    android:initialLayout="@layout/upcoming_widget"
    android:minWidth="110dp"
    android:minHeight="110dp"
    android:minResizeHeight="110dp"
    android:minResizeWidth="110dp"
    android:previewImage="@drawable/example_appwidget_preview"
    android:resizeMode="horizontal|vertical"
    android:updatePeriodMillis="0"
    android:widgetCategory="home_screen" />

正如@MikeM 在评论中提到的,问题是我传递了 AppWidgetManager.EXTRA_APPWIDGET_ID 作为额外的名称,而它应该是 AppWidgetManager.EXTRA_APPWIDGET_IDS.