添加長按事件
1 - (
void)viewDidLoad
2 {
3 [super viewDidLoad];
4 // Do any additional setup after loading the view, typically from a nib.
5
6 UIButton *aBtn=[UIButton buttonWithType:UIButtonTypeRoundedRect];
7 [aBtn setFrame:CGRectMake( 0, 10, 60, 60)];
8 [aBtn setBackgroundColor:[UIColor redColor]];
9 // button點擊事件
10 [aBtn addTarget:self action:@selector(btnShort) forControlEvents:UIControlEventTouchUpInside];
11 // button長按事件
12 UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(btnLong:)];
13 longPress.minimumPressDuration = 0.5; // 定義按的時間
14 [aBtn addGestureRecognizer:longPress];
15
16 [self.view addSubview:aBtn];
17 }
18 -( void)btnShort
19 {
20 NSLog( @" de ");
21 }
22 -( void)btnLong:(UILongPressGestureRecognizer *)gestureRecognizer{
23 if ([gestureRecognizer state] == UIGestureRecognizerStateBegan) {
24 NSLog( @" 長按事件 ");
25 UIAlertView *alert=[[UIAlertView alloc] initWithTitle: @" 消息 " message: @" 確定刪除該模式嗎？ " delegate:self cancelButtonTitle: @" 取消 " otherButtonTitles: @" 刪除 ", nil];
26 [alert show];
27 }
28 }
2 {
3 [super viewDidLoad];
4 // Do any additional setup after loading the view, typically from a nib.
5
6 UIButton *aBtn=[UIButton buttonWithType:UIButtonTypeRoundedRect];
7 [aBtn setFrame:CGRectMake( 0, 10, 60, 60)];
8 [aBtn setBackgroundColor:[UIColor redColor]];
9 // button點擊事件
10 [aBtn addTarget:self action:@selector(btnShort) forControlEvents:UIControlEventTouchUpInside];
11 // button長按事件
12 UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(btnLong:)];
13 longPress.minimumPressDuration = 0.5; // 定義按的時間
14 [aBtn addGestureRecognizer:longPress];
15
16 [self.view addSubview:aBtn];
17 }
18 -( void)btnShort
19 {
20 NSLog( @" de ");
21 }
22 -( void)btnLong:(UILongPressGestureRecognizer *)gestureRecognizer{
23 if ([gestureRecognizer state] == UIGestureRecognizerStateBegan) {
24 NSLog( @" 長按事件 ");
25 UIAlertView *alert=[[UIAlertView alloc] initWithTitle: @" 消息 " message: @" 確定刪除該模式嗎？ " delegate:self cancelButtonTitle: @" 取消 " otherButtonTitles: @" 刪除 ", nil];
26 [alert show];
27 }
28 }
更多介紹
//
加個 longPressGesture ，設置如下：
UILongPressGestureRecognizer *pahGestureRecognizer=[[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressGestureRecognizerStateChanged:)];
pahGestureRecognizer. delegate = self; // 指定委托
pahGestureRecognizer.minimumPressDuration = 0.3; // 最少按壓響應時間
[scrollView addGestureRecognizer:pahGestureRecognizer]; // 指定對象為scrollView
// [pahGestureRecognizer release];
// 實現委托方法：判斷手勢狀態 動作開始、移動變化、結束
- ( void)longPressGestureRecognizerStateChanged:(UIGestureRecognizer *)gestureRecognizer
{
switch (gestureRecognizer.state)
{
case UIGestureRecognizerStateBegan:
{
}
case UIGestureRecognizerStateChanged:
{
}
case UIGestureRecognizerStateEnded:
{
}
}
}
UILongPressGestureRecognizer *pahGestureRecognizer=[[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressGestureRecognizerStateChanged:)];
pahGestureRecognizer. delegate = self; // 指定委托
pahGestureRecognizer.minimumPressDuration = 0.3; // 最少按壓響應時間
[scrollView addGestureRecognizer:pahGestureRecognizer]; // 指定對象為scrollView
// [pahGestureRecognizer release];
// 實現委托方法：判斷手勢狀態 動作開始、移動變化、結束
- ( void)longPressGestureRecognizerStateChanged:(UIGestureRecognizer *)gestureRecognizer
{
switch (gestureRecognizer.state)
{
case UIGestureRecognizerStateBegan:
{
}
case UIGestureRecognizerStateChanged:
{
}
case UIGestureRecognizerStateEnded:
{
}
}
}
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//如果你打開橫向或縱向的滾動條，這里可以設置滾動條的風格// UIScrollViewIndicatorStyleDefault, 默認風格
// UIScrollViewIndicatorStyleBlack, 黑色風格
// UIScrollViewIndicatorStyleWhite 白色風格
//[_scrollView setIndicatorStyle:UIScrollViewIndicatorStyleBlack]
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