Android 小部件:RemoteViews 上的动画?

问题描述

将动画应用于 RemoteViews 内的视图并没有取得太大成功.

I'm not having too much success applying animations to views inside a RemoteViews.

为了简单起见，假设我有一个带有 ImageView 和 Button 的小部件.单击按钮时，我想向 ImageView 添加一个简单的动画(例如旋转).

For the sake of simplicity, let's say I have a widget with an ImageView and a Button. When clicking the button, I want to add a simple animation to the ImageView (a rotation for example).

由于我无法像在 Activity 中那样使用 findViewById() 获得参考，并且 RemoteViews 没有设置器动画，我不知道该怎么办.

Since I can't get a reference using findViewById() like in an Activity and RemoteViews doesn't have a setter for an animation, I'm not sure what should I do.

我正在考虑用新布局替换小部件的 RemoteViews，类似于原始布局，但这个布局已经加载了动画.我可以这样做吗?是否可以在布局中嵌入动画?

I'm thinking of replacing the RemoteViews for the widget with a new layout, similar to the original but this one has the animation already loaded. Can I do this? Is it possible to embed an animation in a layout?

WidgetProvider 的代码如下所示:

Code would be something like this for the WidgetProvider:

Intent intent = new Intent(context, RotateService.class);
PendingIntent pendingIntent = PendingIntent.getService(context, 0, intent, 0);

RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.a_widget);
views.setOnClickPendingIntent(R.id.a_button, pendingIntent);

appWidgetManager.updateAppWidget(appWidgetId, views);

然后在RotateService中:

Then in RotateService:

ComponentName myWidget = new ComponentName(this, MyWidget.class);
AppWidgetManager manager = AppWidgetManager.getInstance(this);
RemoteViews newViews = buildNewRemoteViewsWithAnimation();
manager.updateAppWidget(myWidget, newViews);

还有什么建议吗?

推荐答案

1. 创建自定义动画.
2. 创建 ProgressBar 并在 android:indeterminateDrawable 中设置您的动画.
3. 将 ProgressBar 添加到您的小部件布局并使其可见(不可见)

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