我有一个目标操作,当按下按钮时,我验证UITextFields：
- // Get the text from the UITextField
- NSString *nameStr = _name.text;
- _name.rightView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"error.png"]];
- [self.view addSubview:_name];
- if (nameStr.length == 0)
- {
- UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Invalid Name"
- message:@"You must enter a name."
- delegate:nil
- cancelButtonTitle:@"OK"
- otherButtonTitles:nil];
- [alert show];
- }
我的UITextFields添加到viewDidLoad中的视图,如下所示：
- [self.view addSubview:_name];
如何使右视图UIImageView出现？
解决方法
你确定你没有丢失UITextField框架吗？你正在设置rightviewmode吗？
这是我刚才写的一个例子,似乎工作正常.
- UITextField *rightField = [[UITextField alloc] initWithFrame:CGRectMake(0,140,50)];
- rightField.backgroundColor = [UIColor redColor]; // For testing purpose
- rightField.rightviewmode = UITextFieldviewmodeAlways;// Set rightview mode
- UIImageView *rightImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"Tick_white_color"]];
- rightField.rightView = rightImageView; // Set right view as image view
- [self.view addSubview:rightField];
结果如下：
