我有以下代码......
UILabel *buttonLabel = [[UILabel alloc] initWithFrame:targetButton.bounds];
buttonLabel.text = @"Long text string";
[targetButton addSubview:buttonLabel];
[targetButton bringSubviewToFront:buttonLabel];
...我的想法是我可以为按钮添加多行文本,但文本总是被UIButton的backgroundImage遮盖.用于显示按钮子视图的日志记录调用显示已添加UILabel,但无法看到文本本身.这是UIButton中的错误还是我做错了什么？
在界面构建器中,按住Command+ =将调整按钮的大小以适合其文本.我想知道在按钮添加到视图之前是否可以以编程方式执行此操作.
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button.titleLabel setFont:[UIFont fontWithName:@"Arial-BoldMT" size:12]];
[button addTarget:self action:@selector(buttonTapped:) forControlEvents:UIControlEventTouchUpInside];
// I need to know the width needed to accomodate NSStringVariable
[button setTitle:NSStringVariable forState:UIControlStateNormal];
// So that I can set the width property of the button before addSubview
[button setFrame:CGRectMake(10, 0, width, fixedHeight)];
[subNavigation addSubview:button];