MsgView.java 文件源码

public void setBgSelector() {
    StateListDrawable bg = new StateListDrawable();

    setDrawable(gd_background, backgroundColor, strokeColor);
    bg.addState(new int[]{-android.R.attr.state_pressed}, gd_background);

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {//16
        setBackground(bg);
    } else {
        //noinspection deprecation
        setBackgroundDrawable(bg);
    }
}