Android 应用程序小部件未显示

Question

Looked like my #$#%$%#$ the receiver was not i application element in manifest

你好

我刚刚创建了 helloworld appwidget 以查看其工作原理。我遵循了 adroid 开发站点上的开发示例。但出于某种原因，小部件不想显示在小部件列表中。

AndroidManifest.xml

 <receiver android:name="VoiceRIAWidget" android:label="Voice RIA">
        <intent-filter>
            <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
        </intent-filter>
        <meta-data android:name="android.appwidget.provider"
            android:resource="@xml/appwidget_info" />
    </receiver>

appwidget_info.xml

<?xml version="1.0" encoding="utf-8"?>
<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
    android:label="Voice RIA" android:minWidth="50dp" android:minHeight="50dp"
    android:updatePeriodMillis="86400000" android:initialLayout="@layout/appwidget">
</appwidget-provider>

VoiceRIAWidget

public class VoiceRIAWidget extends AppWidgetProvider
{

    @Override
    public void onUpdate(Context context, AppWidgetManager appWidgetManager,
            int[] appWidgetIds)
    {

        final int N = appWidgetIds.length;

        for (int i = 0; i < N; i++)
        {
            int appWidgetId = appWidgetIds[i];

            CharSequence text = "Hello";

            RemoteViews views = new RemoteViews(context.getPackageName(),
                    R.layout.appwidget);

            views.setTextViewText(R.id.appwidget_text, text);

            appWidgetManager.updateAppWidget(appWidgetId, views);
        }

        super.onUpdate(context, appWidgetManager, appWidgetIds);
    }
}

应用程序小部件.xml

<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/appwidget_text" android:layout_width="wrap_content"
    android:layout_height="wrap_content" android:textColor="#ff000000" />

我看不到我错过了什么它运行但列表中没有任何内容。

Answer 1

我刚刚遇到了同样的问题。我的错误是，当我应该将接收者标签放在我的应用程序标签中时，我将它放在我的 list 标签中。这是我不工作的 XML:

<manifest....>
  ....
  <receiver ...>
    ...
  </receiver>
  <application ...>
    ...
  </applciation>
</manifest>

这是我工作良好的 XML:

<manifest...>
  ....
  <application...>
    ...
    <receiver...>
      ...
    </receiver>
  </application>    
</manifest>

希望对你有帮助!