按现有的button之后自己主动创造一个新的button,并为新button加入事件,因此,当您单击弹出提示框。
于viewcontroller.h添加
@property (weak, nonatomic) IBOutlet UIButton *addbutton;
为这个按钮加入响应事件addbutton
在viewcontroller.m中加入
- (IBAction)addButton:(id)sender {
//动态加入一个button
CGRect frame = CGRectMake(0, 0, 300, 50);
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
button.frame = frame;
[button setTitle:@"新加入的动态按钮" 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button的响应函数
-(IBAction) buttonClicked:(id)sender {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示"
message:@"单击了动态button!
"
delegate:self
cancelButtonTitle:@"确定"
otherButtonTitles:nil];
[alert show];
}
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