item_im_imgselect.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_marginLeft="3dp"
        >

        <ImageView
            android:id="@+id/iv_img"
            android:scaleType="centerCrop"
            android:layout_width="133dp"
            android:layout_height="match_parent"/>

        <ImageView
            android:layout_alignRight="@+id/iv_img"
            android:id="@+id/iv_isselect"
            android:layout_marginTop="4dp"
            android:layout_marginRight="4dp"
            android:layout_width="24dp"
            android:layout_height="24dp"
            android:src="@drawable/ico_im_img_unselect"
            />

    </RelativeLayout>

</RelativeLayout>