iOS 禁用以编程方式创建的按钮，直到函数完成

Question

您好，在此先感谢您的耐心等待和帮助:)

这是我正在做的事情： - 我以编程方式创建调用相同函数的多个按钮

以及我想要完成的事情： - 按下按钮后，我希望运行通用功能并禁用所有按钮，以便在执行第一个调用期间不会再次调用该功能。第一个通话结束后，我想重新启用按钮。

以下是我创建按钮的方式：

@interface ViewController ()
{
    UIButton *button;
}
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    int tagForTheButton = 0;

    int yPossition = 0;
    int xPossition = 0;



    for (int numberOfTheColomn = 0; numberOfTheColomn < 6; numberOfTheColomn++) {


                button = [UIButton buttonWithType:UIButtonTypeCustom];
                button.adjustsImageWhenHighlighted = NO;
                button.frame = CGRectMake(xPossition, yPossition, 64, 64);
                button.tag = tagForTheButton;
                [button setTitle:title forState:UIControlStateNormal];
                [button addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];
                [self.scroll addSubview:button];
                yPossition=yPossition+100;
                tagForTheButton++;
            }




}

-(void)buttonPressed:(id)sender{

    //This is my attempt to disable the buttons
    //previous mistake used 2578
    for (int numberForIncrease; numberForIncrease<6; numberForIncrease++) {
        if (button.tag == numberForIncrease) {
            UIButton *btn = (UIButton*)[self.scroll viewWithTag:numberForIncrease];
            btn.enabled=NO;
            [btn setUserInteractionEnabled:NO];
        }
    }


}

Answer 1

您一定是错误地禁用了它。 UIButton.enabled 的 docs 状态：

If the enabled state is NO, the control ignores touch events and subclasses may draw differently.

通过添加 NSLog() 调用检查 DisableButton 是否被调用，并完全取消 DisableButton 方法：

dispatch_sync(dispatch_get_main_queue(), ^{
    self.view.userInteractionEnabled = NO;
    _btn_sync_outlet.enabled = NO;
    _btn_sync_outlet.userInteractionEnabled = NO;
});

这可能对你有帮助:)

Answer 2

我不明白为什么你需要从 0 到 2577 循环来禁用你已经有 iVar 指向的按钮..？

为什么不直接关闭整个视图的 userInteraction（或者如果不能关闭包含所有按钮的 containerView）？

[self.view setUserInteractionEnabled: NO ];

或者，失败了为什么不在那里拥有一个 iVar？

{
BOOL _ignoreButtons;
}
-(void)buttonPressed:(id)sender{

   if (!_ignoreButtons){

_ignoreButtons = YES;
//do your time consuming job, possibly on bg thread

//on completion..
_ignoreButtons = NO;
}

}

iOS 禁用以编程方式创建的按钮，直到函数完成

iOS disable programatically created buttons until function completion

objective-c

uibutton

ios