UIButton IB vs编程方式

当我在界面生成器中制作一个具有背景的自定义UIButton时，它给了我内置触摸时的默认功能，它将图像变黑。如果我创建的UIButton编程，就像这样：UIButton IB vs编程方式

buttonPic = [[UIButton alloc] initWithFrame:CGRectMake(5, 5, 100, 63)]; 
    [[buttonPic imageView] setContentMode:UIViewContentModeScaleToFill]; 

[buttonPic setImage:[video pic] forState:UIControlStateNormal];

它不会表现得像我在IB创建了所有的人。当我接触到内部时，没有什么变化。在我失踪的UIButton中有设置吗？感谢

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2012-03-19 0xSina

我想你必须启用这两个选项之一：

buttonPic.showsTouchWhenHighlighted = YES; 
buttonPic.reversesTitleShadowWhenHighlighted = YES;

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2012-03-19 01:32:11 fbernardo

这是如何以编程方式创建一个UIButton。

//Specify the type of the button first. No need to use alloc-init for UIButton like other view objects. 

UIButton *myBtn = [UIButton buttonWithType:UIButtonTypeCustom]; 

// Give UIButtonTypeRoundedRect to get default Interface builder style button. 

myBtn.frame = CGRectMake(0, 0, 100, 40); 
[self.view addSubview:myBtn]; 

// Since the button type is custom, give an image to make it visible. 
[myBtn setBackgroundImage:[UIImage imageNamed:@"image.png"] forState:normal]; 
[myBtn addTarget:self action:@selector(myAction:) forControlEvents:UIControlEventTouchUpInside]; 

// These are some optional methods you may want to use. 

myBtn.titleLabel.font = [UIFont fontWithName:@"Arial" size:15]; 
[myBtn setTitle:@"my button" forState:UIControlStateNormal]; 
[myBtn setTitleColor:[UIColor blackColor] forState:normal]; 
[myBtn setContentHorizontalAlignment:UIControlContentHorizontalAlignmentCenter];

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2012-03-19 03:18:10 ArunGJ

UIButton IB vs编程方式

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