标签:style io color ar os for sp div on
单击一个已有的按钮后自动创建一个新的按钮,并为新按钮添加事件,使得单击时弹出提示框。
在viewcontroller.h中添加
@property (weak, nonatomic) IBOutlet UIButton *addbutton;
为这个按钮添加响应事件addbutton
在viewcontroller.m中添加
- (IBAction)addButton:(id)sender {
//动态添加一个按钮
CGRect frame = CGRectMake(0, 0, 300, 50);
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
button.frame = frame;
[button setTitle:@"新添加的动态按钮" forState: UIControlStateNormal];
button.backgroundColor = [UIColor redColor];
button.tag = 2000;
[button addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:button];
}
//这个是新按钮的响应函数
-(IBAction) buttonClicked:(id)sender {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示"
message:@"单击了动态按钮!"
delegate:self
cancelButtonTitle:@"确定"
otherButtonTitles:nil];
[alert show];
}
标签:style io color ar os for sp div on
原文地址:http://blog.csdn.net/jichunw/article/details/40821717