从GetBackground获取资源ID

Question

I created a component having inherited it from View. Tell me please, how I can get resource id (int) from drawable (GetBackground function). Thanks.

Answer 1

It's easy!

Step 1:

When background resource is being set, save the id in an int.

int backgroundId;
onButton1Click(View v) {
backgroundId = R.drawable.myBackgroundResource;
((yourViewType)findViewById(R.id.myView)).setBackgroundResource(backgroundId);
}

Step 2:

Use your saved int.

onButton2Click(View v) {
// Your background id is known here.
someView.setBackgroundResource(backgroundId);
// Or some other uses!
}