选择图片

app/src/main/res/drawable/btn_check.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@drawable/shape_select" android:state_checked="true"></item>
+    <item android:drawable="@drawable/shape_select" android:state_selected="true"></item>
+    <item android:drawable="@drawable/shape_select" android:state_pressed="true"></item>
+    <item android:drawable="@drawable/shape_bg1"></item>
+</selector>

app/src/main/res/drawable/shape_select.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <solid android:color="@color/white" />
+
+    <stroke
+        android:width="@dimen/dp_1"
+        android:color="@color/green029737" />
+    <corners
+        android:bottomLeftRadius="@dimen/dp_3"
+        android:bottomRightRadius="@dimen/dp_3"
+        android:topLeftRadius="@dimen/dp_3"
+        android:topRightRadius="@dimen/dp_3" />
+    <size
+        android:width="@dimen/dp_20"
+        android:height="@dimen/dp_20" />
+</shape>