1.增加非空判断

2.增加默认头像图片

pages/components/PersonalInfo.js

@@ -650,10 +650,13 @@ export default class PersonalInfo extends BasePage {
   }
 
   photoback(photo_uri) {
+    this.chosephoto.setModalVisible(false);
+    if (photo_uri == undefined || photo_uri === "" || photo_uri == null) {
+      return;
+    }
     this.setState({
       photo_uri: { uri: photo_uri }
     });
-    this.chosephoto.setModalVisible(false);
   }
 }