DrawableWrapperDonut.java 文件源码

private boolean updateTint(int[] state) {
    if (!isCompatTintEnabled()) {
        return false;
    }
    ColorStateList tintList = this.mState.mTint;
    Mode tintMode = this.mState.mTintMode;
    if (tintList == null || tintMode == null) {
        this.mColorFilterSet = false;
        clearColorFilter();
        return false;
    }
    int color = tintList.getColorForState(state, tintList.getDefaultColor());
    if (this.mColorFilterSet && color == this.mCurrentColor && tintMode == this.mCurrentMode) {
        return false;
    }
    setColorFilter(color, tintMode);
    this.mCurrentColor = color;
    this.mCurrentMode = tintMode;
    this.mColorFilterSet = true;
    return true;
}