package liu.myrecyleviewchoosephoto.view; import android.content.Context; import android.util.AttributeSet; import android.widget.RelativeLayout; /** * 正方形的RelativeLayout * Created by 刘楠 on 2016/8/13 0013.16:07 */ public class SquareRelativeLayout extends RelativeLayout { public SquareRelativeLayout(Context context) { super(context); } public SquareRelativeLayout(Context context, AttributeSet attrs) { super(context, attrs); } public SquareRelativeLayout(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { //设置自己测量结果 setMeasuredDimension(getDefaultSize(0,widthMeasureSpec),getDefaultSize(0,heightMeasureSpec)); /** * 测量子View的 */ int childWidthSize=getMeasuredWidth(); //高度与宽度一样 widthMeasureSpec =MeasureSpec.makeMeasureSpec(childWidthSize,MeasureSpec.EXACTLY); heightMeasureSpec =widthMeasureSpec; super.onMeasure(widthMeasureSpec, heightMeasureSpec); } }