1 继承原始的

2 重写onMeasure方法

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
  int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,
  MeasureSpec.AT_MOST);
  super.onMeasure(widthMeasureSpec, expandSpec);
}

05-06 03:14