CircularProgressButton.java 文件源码

private void initIdleStateDrawable() {
    int colorNormal = getNormalColor(mIdleColorState);
    int colorPressed = getPressedColor(mIdleColorState);
    int colorFocused = getFocusedColor(mIdleColorState);
    int colorDisabled = getDisabledColor(mIdleColorState);
    if (background == null) {
        background = createDrawable(colorNormal);
    }

    StrokeGradientDrawable drawableDisabled = createDrawable(colorDisabled);
    StrokeGradientDrawable drawableFocused = createDrawable(colorFocused);
    StrokeGradientDrawable drawablePressed = createDrawable(colorPressed);
    mIdleStateDrawable = new StateListDrawable();

    mIdleStateDrawable.addState(new int[]{android.R.attr.state_pressed}, drawablePressed.getGradientDrawable());
    mIdleStateDrawable.addState(new int[]{android.R.attr.state_focused}, drawableFocused.getGradientDrawable());
    mIdleStateDrawable.addState(new int[]{-android.R.attr.state_enabled}, drawableDisabled.getGradientDrawable());
    mIdleStateDrawable.addState(StateSet.WILD_CARD, background.getGradientDrawable());
}