<?xml version="1.0" encoding="utf-8"?>

<liu.myrecyleviewchoosephoto.view.SquareRelativeLayout

    xmlns:android="http://schemas.android.com/apk/res/android"

    android:id="@+id/rootView"

    android:layout_width="wrap_content"

    android:layout_height="wrap_content">

    <RelativeLayout

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_marginLeft="7dp"

        android:layout_marginRight="7dp"

        android:layout_marginTop="14dp"

        android:background="@drawable/shape_white_bg_corner"

        >

        <ImageView

            android:id="@+id/ivDisPlayItemPhoto"

            android:layout_width="match_parent"

            android:layout_height="match_parent"

            android:contentDescription="@null"

            android:scaleType="centerCrop"

            android:layout_centerInParent="true"

            android:layout_marginRight="8dp"

            android:layout_marginLeft="8dp"

            android:layout_marginTop="5dp"

            android:layout_marginBottom="5dp"

            />

        <ImageView

            android:id="@+id/ivAddPhoto"

            android:layout_width="match_parent"

            android:layout_height="match_parent"

            android:layout_centerInParent="true"

            android:background="@color/white"

            android:scaleType="centerCrop"

            android:src="@mipmap/add_photo_refund"

            android:visibility="visible"/>

        <ImageView

            android:id="@+id/ivUploadingBg"

            android:layout_width="match_parent"

            android:layout_height="match_parent"

            android:src="@drawable/shape_grey_bg_corner"

            android:visibility="gone"/>

        <ImageView

            android:id="@+id/ivError"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_centerInParent="true"

            android:src="@mipmap/icon_prompt"

            android:visibility="gone"/>

        <TextView

            android:id="@+id/tvProgress"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_centerInParent="true"

            android:text="0%"

            android:textColor="@color/white"

            android:textSize="16sp"

            android:visibility="gone"/>

    </RelativeLayout>

    <ImageView

        android:id="@+id/ivDelete"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignParentRight="true"

        android:src="@mipmap/delete_photo"

        android:visibility="gone"/>

</liu.myrecyleviewchoosephoto.view.SquareRelativeLayout>

 @Override

    public int getItemCount() {

        if (mDatas == null || mDatas.size() == 0) {

            return 1;

        } else if (mDatas.size() < mMaxNum) {

            return mDatas.size() + 1;

        } else {

            return mDatas.size();

        }

    }

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);

    }

}