修改密码成功增加提示框 review by yewanwan

@@ -196,7 +196,6 @@ export function modifySubmitRequest() {
 }
 
 export function modifySubmitSuccess() {
-    Actions.pop();
      return {
         type: PWD_MODIFY_SUCCESS
     };
@@ -215,11 +214,15 @@ export function pwdModifySubmit(pid, oldPwd, newPwd,newPwdConfirm) {
         return userService.modifyPassword(pid, oldPwd, newPwd,newPwdConfirm)
             .then(function (json) {
 				dispatch(modifySubmitSuccess());
-				dispatch(logout());
+				Alert.alert(
+	                '修改成功',
+	                '',
+	                [{text: 'OK', onPress: () => dispatch(logout())}]
+	            );
         })
         .catch((error) => {
             Alert.alert(
-                error.message,
+                error.message || '服务错误',
                 '',
                 [{text: 'OK'}]
             );