Question

I have a drawable like this:

<selector xmlns:android="http://schemas.android.com/apk/res/android">

<item android:state_pressed="true"
      android:state_window_focused="true"
      android:drawable="@drawable/seek_thumb_pressed" />

<item android:state_focused="true"
      android:state_window_focused="true"
      android:drawable="@drawable/seek_thumb_selected" />

<item android:state_selected="true"
      android:state_window_focused="true"
      android:drawable="@drawable/seek_thumb_selected" />

<item android:drawable="@drawable/seek_thumb_normal" />

In code, how do I set my Drawable’s specific state? I’d like to set it to the state_pressed=true state.

Answer 1

Got it. A comment from here helped: Android : How to update the selector(StateListDrawable) programmatically

So Drawable.setState() takes an array in integers. These integers represent the state of the drawable. You can pass any ints you want. Once the ints pass in match a an “item” from the state list drawables the drawable draws in that state.

It makes more sense in code:

int[] state = new int[] {android.R.attr.state_window_focused, android.R.attr.state_focused};
minThumb.setState(state);

Notice that my state list drawable has both the state_pressed="true" and android:state_window_focused="true". So I have to pass both of those int values to setState. When I want to clear it, I just minThumb.setState(new int[]{});