将图像添加到ios中特定位置的UITextFields

Question

我正在创建一个iOS应用程序，我需要在特定位置添加图像（左上角），我应该如何将图像添加到特定位置的文本字段？

Answer 1

UIImageView* usernameIconImage = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 42, 42)]; 
    usernameIconImage.image = [UIImage imageNamed:@"username.jpg"]; 
    UIView* usernameIconContainer = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 42, 42)]; 
    usernameIconContainer.backgroundColor = [UIColor colorWithWhite:0.9 alpha:1.0]; 
    [usernameIconContainer addSubview:usernameIconImage]; 

    self.userIDField.leftViewMode = UITextFieldViewModeAlways; 
    self.userIDField.leftView = usernameIconContainer; 

Answer 2

您可以通过使用UITextFieldleftView属性，在这里你可以轻松地分配一个UIImageView看到下面的代码中的UITextField

UITextField *textField = [[UITextField alloc] init]; 
UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"someImage"]]; 
[textField setLeftView:imageView]; 

Answer 3

可以达到这个添加的ImageView为leftView。

self.textField.leftViewMode=UITextFieldViewModeAlways; 
UIImageView *imageView=[[UIImageView alloc] initWithFrame:CGRectMake(0.0, 0.0, 50.0, 30.0)]; 
imageView.image=YOURIMAGE; 
self.textField.rightView=imageView; 

我希望它有帮助。

干杯。

Answer 4

UIImageView *leftImageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 50, self.yourTextField.frame.size.height)]; // you can choose your desired width 
     [leftImageView setBackgroundColor:[UIColor clearColor]]; 
     [leftImageView setImage:[UIImage imageNamed:@"test.png"]]; 
     yourTextField.leftView = leftImageView;