ActionBar get current icon, findviewbyid

2019-07-20 03:50发布

问题:

I know how to set the icon of the actionbar, but how do I determine what icon is currently there? I don't see an accessor like getIcon , I think it is possible to find the icon view by id, since I've done this with the search widget in the actionbar, but I wouldn't know what id to call.

回答1:

According to the source code of ActionBarView.HomeView you should be able to get ImageView of icon by android.R.id.home.

So code may look like:

ImageView imageView = (ImageView) findViewById(android.R.id.home);
Drawable dr = imageView.getDrawable();

Not sure if this will work with support libraries