Question

我有一个UIButton作为子视图添加到我的超级视图中，它只是一个大块，如何将图像添加到我的按钮。

- (void)viewDidLoad
{

UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
button.frame = CGRectMake(890, 345 , 100, 100);
button.backgroundColor = [UIColor purpleColor];

[self.collectionView.superview addSubview:button];
[button addTarget:self action:@selector(changeContentOffset:) forControlEvents:UIControlEventTouchUpInside];
}

Answer 1

您可以通过以下两种方式添加image in UIButton。

1）借助设置Background Image。

    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
    button.frame = CGRectMake(890, 345 , 100, 100);
    button.backgroundColor = [UIColor purpleColor];
    [button setBackgroundImage:[UIImage imageNamed:@""] forState:UIControlStateNormal];
    [self.collectionView.superview addSubview:button];
    [button addTarget:self action:@selector(changeContentOffset:) forControlEvents:UIControlEventTouchUpInside];

2）或者您可以将UIImageView添加为subview。

    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
    button.frame = CGRectMake(890, 345 , 100, 100);
    button.backgroundColor = [UIColor purpleColor];
    [button setClipsToBounds:YES];
    [button setBackgroundImage:[UIImage imageNamed:@""] forState:UIControlStateNormal];
    UIImageView * imgView = [[UIImageView alloc]init];
    [imgView setImage:[UIImage imageNamed:@""]];
    [imgView setFrame:CGRectMake(0, 0, 100, 100)];
    [button addSubview:imgView];    
    [self.collectionView.superview addSubview:button];
    [button addTarget:self action:@selector(changeContentOffset:) forControlEvents:UIControlEventTouchUpInside];

Answer 2

使用此： -setBackgroundImage：forState：

Answer 3

如果你想要一个＆＃34;图像作为按钮＆＃34;你可以寻找这样的东西。而且不仅是带有图像的默认按钮

BOOL ipad = UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad;
UIButton* btn = [UIButton buttonWithType:UIButtonTypeCustom];;
CGRect frame;
//universal app 
if (ipad)
{
    btn.frame = frame = CGRectMake( x, y, w, h );
}
else
{
    btn.frame = frame = CGRectMake( x, y, w, h );
}
btn.titleLabel.backgroundColor = [UIColor clearColor];
forState:UIControlStateNormal];

[btn setBackgroundImage:[UIImage imageNamed:@"buttonAsImage.png"] forState:UIControlStateNormal && UIControlStateHighlighted];
[btn setTitle:title forState:UIControlStateNormal];

Answer 4

有不同的方法可以做到这一点。首先，您可以在您的超级视图中添加imageview，并根据需要设置imageview的图像。然后，在同一位置添加具有imageview大小的按钮，并将按钮颜色设置为clearColor。但您需要先添加imageView，否则您的按钮将位于图像下方。

第二个是默认图像到按钮，使用setImage：image forState：UIControlStateNormal或setBackgroundImage：image forState：UIControlStateNormal。

Answer 5

知道了，方法如下：

[button setBackgroundImage:[UIImage imageNamed:@"image.png"] forState:UIControlStateNormal && UIControlStateHighlighted];

Answer 6

使用this method。 - (void)setBackgroundImage:(UIImage *)image forState:(UIControlState)state

将图像添加到我的UIButton子视图

6 个答案: