AnimButtonLayout.java 文件源码

private void init(Context context, AttributeSet attributeSet) {
    if (Build.VERSION.SDK_INT >= 21) {
        mInterpolator = new PathInterpolator(0.33f, 0f, 0.33f, 1);
    } else {
        mInterpolator = new AccelerateDecelerateInterpolator();
    }
    mShadowDrawable = getResources().getDrawable(R.drawable.gradient_layout_shadow);
    mDensity = getResources().getDisplayMetrics().density;
}