小编use*_*313的帖子

我创建了一个按钮,就像下面的代码一样,但它不会在日志中响应(应该显示"ha").最奇怪的部分是我能够在集合视图中使用这个确切的代码,但通常不在viewcontroller上.按下按钮"myAction"我做错了什么？

-(void)viewDidLoad {
    UIButton *buttonz = [UIButton buttonWithType:UIButtonTypeCustom];
        buttonz.frame = CGRectMake(160, 0, 160, 30);
        [buttonz setTitle:@"Charge" forState:UIControlStateNormal];
        [buttonz addTarget:self action:@selector(myAction:) forControlEvents:UIControlEventTouchUpInside];
        [buttonz setEnabled:YES];

        [buttonz setBackgroundColor:[UIColor blueColor]];

        //add the button to the view
        [backImageView addSubview:buttonz];
}

-(void)myAction:(id)sender {
NSLog(@"ha");
    [self resignFirstResponder];
    NSLog(@"ha");
}