public void testGetConstantState() {
assertNotNull(mNinePatchDrawable.getConstantState());
ConstantState constantState = mNinePatchDrawable.getConstantState();
// change the drawable's configuration does not affect the state's configuration
mNinePatchDrawable.setChangingConfigurations(0xff);
assertEquals(0, constantState.getChangingConfigurations());
// the state's configuration refreshed when getConstantState is called.
constantState = mNinePatchDrawable.getConstantState();
assertEquals(0xff, constantState.getChangingConfigurations());
}
public Drawable loadIcon(Context context, RunningState state) {
if (mUser == null) {
return super.loadIcon(context, state);
}
if (mUser.mIcon != null) {
ConstantState constState = mUser.mIcon.getConstantState();
if (constState == null) {
return mUser.mIcon;
} else {
return constState.newDrawable();
}
}
return context.getDrawable(com.android.internal.R.drawable.ic_menu_cc);
}
public void testGetChangingConfigurations() {
ConstantState constantState = mNinePatchDrawable.getConstantState();
// default
assertEquals(0, constantState.getChangingConfigurations());
assertEquals(0, mNinePatchDrawable.getChangingConfigurations());
// change the drawable's configuration does not affect the state's configuration
mNinePatchDrawable.setChangingConfigurations(0xff);
assertEquals(0xff, mNinePatchDrawable.getChangingConfigurations());
assertEquals(0, constantState.getChangingConfigurations());
// the state's configuration get refreshed
constantState = mNinePatchDrawable.getConstantState();
assertEquals(0xff, constantState.getChangingConfigurations());
// set a new configuration to drawable
mNinePatchDrawable.setChangingConfigurations(0xff00);
assertEquals(0xff, constantState.getChangingConfigurations());
assertEquals(0xffff, mNinePatchDrawable.getChangingConfigurations());
}