为UIGestureRecognizer设置委托以发出警告

Question

为UITapGesture设置委托给出警告

这是我的代码：

UITapGestureRecognizer *tapOtherPlayers = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapcollectionViewOtherPlayers:)];
tapOtherPlayers.delegate = self;
[tapOtherPlayers setNumberOfTapsRequired:1];
[collectionViewOtherPlayers addGestureRecognizer:tapOtherPlayers];

Answer 1

您需要在.h文件中添加UIGestureRecogniserDelegate，如下所示：

希望有所帮助......

Answer 2

制作＆＃34; tapOtherPlayers＆＃34;变量为全局变量，并将UIGestureRecognizerDelegate委托设置为如下所示。

@interface ViewController ()<UIGestureRecognizerDelegate>{
    UITapGestureRecognizer *tapOtherPlayers;
}

@end

@implementation ViewController
- (void)viewDidLoad {

    tapOtherPlayers = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapcollectionViewOtherPlayers:)];
    tapOtherPlayers.delegate = self;
    [tapOtherPlayers setNumberOfTapsRequired:1];
    [collectionViewOtherPlayers addGestureRecognizer:tapOtherPlayers];
}

希望这会对你有帮助......