更新UI。review by 孙凯。

@@ -219,7 +219,7 @@ let styles = StyleSheet.create({
 	},
     single_View: {
         height: rowHeight - rowsp + 1,
-        width: width-29,
+        width: Platform.OS === 'ios' ? width-29 : width-28.5,
         flexDirection: 'row',
         marginLeft: 15,
         borderColor: '#e0e0e0',