在Android小部件中更新ImageVIew

时间:2012-03-28 20:58:40

标签: android widget imageview onupdate

当我想更新我的ImegeView时,我看到“问题加载小部件”;

我的main.xml

<?xml version="1.0" encoding="utf-8"?>
<AbsoluteLayout  xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="280dp"
android:layout_height="120dp"
android:background="@drawable/widget_bg"
>
<ImageView
android:name="@+id/image_in_widget"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
</AbsoluteLayout>

我的Widget.java

package endoftheworld.wid;
//some imports

public class Widget extends AppWidgetProvider {
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[]   appWidgetIds)
{
 RemoteViews updateViews = new RemoteViews(context.getPackageName(), R.layout.main); 
 Bitmap bitmap = BitmapFactory.decodeResource(context.getResources(), R.drawable.pulse);
 updateViews.setImageViewBitmap(R.id.image_in_widget,bitmap);
 appWidgetManager.updateAppWidget(appWidgetIds, updateViews);
 super.onUpdate(context, appWidgetManager, appWidgetIds); 
  }
}

在DDMS中我可以看到

AppWidgetHostView(128): android.widget.RemoteViews$ActionException: can't find view: 0x7f060000

但我在R.java中有0x7f060000

 //....
public static final class id {
    public static final int image_in_widget=0x7f060000;
}
 //...

我使用Android平台2.3.1 API级别9 CPU / ABI ARM(armeabi)。

什么是伎俩?

1 个答案:

答案 0 :(得分:0)

您传递给R.layout.main的{​​{1}}布局没有ID RemoteViews的任何视图。也许您打算传递不同的布局,或者该布局中的R.id.image_in_widget可能包含错误的ID。