android记事本功能，可以保存和重新编辑-Is there a way to "swap" out a view at runtime? Here s my goal: I want to display an animated, indeterminate ProgressBar view until my image is loaded. Is there a way to do this easily, without having to do a bunch of crazy stuff? Is there a way I can get the resource ID of the ProgressBar spinner animation and simply reuse that?