allprojects {
	repositories {
 		...
		maven { url 'https://jitpack.io' }
  	}
 }

  dependencies {
    	        compile 'com.github.cdye0000:ClipView:1.0'
	}


 RoundImageView：
  app:radius 圆角半径


 ClipImageView
  app:radius_left_top      左上角圆角半径
  app:radius_right_top     右上角圆角半径
  app:radius_left_bottom   左下角圆角半径
  app:radius_right_bottom  右下角圆角半径

<com.cdye.clipview.ClipImageView
    app:radius_left_top="10dp"
    app:radius_right_top="10dp"
    android:src="@drawable/pic_2"
    android:layout_marginTop="50dp"
    android:layout_width="200dp"
    android:layout_height="100dp" />
    
<com.cdye.clipview.RoundImageView
    app:radius="10dp"
    android:src="@drawable/pic_1"
    android:layout_marginTop="50dp"
    android:layout_width="200dp"
    android:layout_height="100dp" />