Question

我是IOS Dev的新手，正在为UIView搜索onclick事件，我发现这个代码完美无缺。但它并没有调用特定的UIView，因为我使用多个UIViews并希望分别在所有这些上添加事件，而这段代码调用了UIView的handleSingleTap onclick。请帮助..

- (void)viewDidLoad
{
[super viewDidLoad];
UITapGestureRecognizer *singleFingerTap =
[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];
[self.view addGestureRecognizer:singleFingerTap];
}
- (void)handleSingleTap:(UITapGestureRecognizer *)recognizer {
CGPoint location = [recognizer locationInView:[recognizer.view superview]];

NSLog(@"Clicked");
}

Answer 1

您可以创建UITapGestureRecognizer并将其添加到您希望点击的视图中。您还可以在每个视图上设置标记属性，以找出单击的视图。

例如：

    UITapGestureRecognizer *singleFingerTap1 =
    [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];
    view1.tag = 1;
    [view1 addGestureRecognizer:singleFingerTap1];
    UITapGestureRecognizer *singleFingerTap2 =
    [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];
    view2.tag = 2;
    [view2 addGestureRecognizer:singleFingerTap2];
    //..and so on

    - (void)handleSingleTap:(UITapGestureRecognizer *)recognizer {
        UIView *viewClicked = recognizer.view;

        NSLog(@"Clicked: %d", viewClicked.tag);
    }

另一个解决方案是在主视图中添加一个手势识别器（保存其他视图的视图，发布的内容）和handleSingleTap：方法检查点是否在视图内：

BOOL isPointInsideView1 = [view1 pointInside:location withEvent:nil];
BOOL isPointInsideView2 = [view1 pointInside:location withEvent:nil];

但是当一个视图覆盖另一个视图时，ic可能会失败。

Onclick Event UIView，同时使用多个UIViews

1 个答案: