Android-正方形的容器，android-正方形

Android-正方形的容器，android-正方形

package liu.myrecyleviewchoosephoto.view;import android.content.Context;import android.util.AttributeSet;import android.widget.RelativeLayout;/** * 正方形的RelativeLayout * Created by 劉楠 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) {        //設定自己測量結果        setMeasuredDimension(getDefaultSize(0,widthMeasureSpec),getDefaultSize(0,heightMeasureSpec));        /**         * 測量子View的         */        int childWidthSize=getMeasuredWidth();        //高度與寬度一樣        widthMeasureSpec =MeasureSpec.makeMeasureSpec(childWidthSize,MeasureSpec.EXACTLY);        heightMeasureSpec =widthMeasureSpec;        super.onMeasure(widthMeasureSpec, heightMeasureSpec);    }}