ForegroundLinearLayout.java 文件源码

public ForegroundLinearLayout(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);

    TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.ForegroundRelativeLayout,
            defStyle, 0);

    final Drawable d = a.getDrawable(R.styleable.ForegroundRelativeLayout_foreground);
    if (d != null) {
        setForeground(d);
    }

    a.recycle();

    if (this.getBackground() instanceof NinePatchDrawable) {
        final NinePatchDrawable npd = (NinePatchDrawable) this.getBackground();
        mRectPadding = new Rect();
        if (npd.getPadding(mRectPadding)) {
         mUseBackgroundPadding = true;
        }
    }
}