UI15-存储路径

存储路径

   NSString *documet=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)[0];

    NSString *dataPath=[documet stringByAppendingString:@"/userdata.txt"];

    NSLog(@"%@",dataPath);

    NSMutableDictionary *dic=[NSMutableDictionary dictionaryWithContentsOfFile:dataPath];

 提示按钮：

 UIAlertView *alt=[[UIAlertView alloc]initWithTitle:@"请重新输入" message:@"用户名和密码不正确" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"注册", nil];

 

        [alt show];

如果已经登录，跳转，登录过后，提示框提示后，1秒自动消失。

   if ([flage isEqualToString:@"NO"]) {

        LogginNAController *lgnc=[[LogginNAController alloc]init];

        [self presentViewController:lgnc animated:YES completion:nil];

    }

    else {

            UIAlertView *alt=[[UIAlertView alloc]initWithTitle:@"提示" message:@"收藏成功" delegate:self cancelButtonTitle:nil otherButtonTitles: nil];

            [alt show];

            [self performSelector:@selector(dissMissAlter:) withObject:alt afterDelay:1.0];

    }

    NSLog(@"detialright");

 

}

-(void)dissMissAlter:(UIAlertView *)alert{

    if (alert) {

                [alert dismissWithClickedButtonIndex:[alert cancelButtonIndex] animated:YES];

    }

观察图片更

--(void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context{

    UIImage *newimage=change[NSKeyValueChangeNewKey];

    if (newimage==nil) {

        return;

    }

    NSArray *indexArry=[ self.tableView indexPathsForVisibleRows];

    NSIndexPath *indexpath=(__bridge NSIndexPath *)(context);

    if ([indexArry containsObject:indexpath]) {

     ActivelistCell *cell=(ActivelistCell*)[self.tableView cellForRowAtIndexPath:indexpath];

        cell.imageRightView.image=newimage;

        [self.tableView reloadRowsAtIndexPaths:@[indexpath] withRowAnimation:UITableViewRowAnimationNone];

        

    }

    [object removeObserver:self forKeyPath:@"imagePicture"];

}