ImageView和UIButton

Question

我想创建一个带有自定义图像（背景图像）的按钮，我已经这样做了。 如何将imageview分配给may按钮？

感谢您的回答

UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button addTarget:self 
           action:@selector(goToGeoloc)
 forControlEvents:UIControlEventTouchDown];
[button setTitle:@"Show View" forState:UIControlStateNormal];
button.frame = CGRectMake(245.0, 8.0, 45.0, 45.0);
UIImage *image = [UIImage imageNamed:@"ico_plan.png"];
UIImageView *imageView = [[UIImageView alloc]initWithImage:image];

Answer 1

你想要的是：

[button setBackgroundImage:image forState:UIControlStateNormal];

或

[button setImage:image forState:UIControlStateNormal];

Answer 2

@izan您不需要在UIImageView上显示单独的UIButton。

UIButton里面有UIImageView个setImage:forState:。你可以为这两个imageViews设置图像。

您可以使用setBackgroundImage:forState:方法为第一个图像视图设置图像。通过这样做，您无法显示该按钮的任何标题。如果要在按钮上显示标题和图像，则应使用{{1}}方法。

Answer 3

使用setImage方法;

- (void)setImage:(UIImage *)image forState:(UIControlState)state

所以你的代码就是;

UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button addTarget:self action:@selector(goToGeoloc) forControlEvents:UIControlEventTouchDown];
[button setTitle:@"Show View" forState:UIControlStateNormal];
button.frame = CGRectMake(245.0, 8.0, 45.0, 45.0);

UIImage *image = [UIImage imageNamed:@"ico_plan.png"];
[button setImage:image forState:UIControlStateNormal];

或者我仍然希望您的文字显示用途;

- (void)setBackgroundImage:(UIImage *)image forState:(UIControlState)state

哪会导致;

UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button addTarget:self action:@selector(goToGeoloc) forControlEvents:UIControlEventTouchDown];
[button setTitle:@"Show View" forState:UIControlStateNormal];
button.frame = CGRectMake(245.0, 8.0, 45.0, 45.0);

UIImage *image = [UIImage imageNamed:@"ico_plan.png"];
[button setBackgroundImage:image forState:UIControlStateNormal];

UIButton文档; http://bit.ly/kruq5y

Answer 4

UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button addTarget:self 
           action:@selector(goToGeoloc)
 forControlEvents:UIControlEventTouchDown];
[button setTitle:@"Show View" forState:UIControlStateNormal];
[button setImage:[UIImage imageNamed:@"ico_plan.png"] forState:UIControlStateNormal];
button.frame = CGRectMake(245.0, 8.0, 45.0, 45.0);

希望这有帮助