UITapGestureRecognizer無法添加到UIView？

Question

我想為一個簡單的UIView做一個手勢識別器：

UIView *theView = [[UIView alloc] initWithFrame:rect];
[theView setUserInteractionEnabled:YES];

UITapGestureRecognizer *tap = [[[UITapGestureRecognizer alloc] initWithTarget:self 
                                                                       action:@selector(handleTap)] autorelease];
[theView addGestureRecognizer:tap];

如果我調試視圖的屬性gestureRecognizers，它會顯示手勢識別器對象。 但是當我點擊視圖內部時，它不起作用。

使用UIImageView的相同代碼完美無缺，任何想法為什么在UIView中不起作用？

更新：

一個示例類。

@implementation ExampleClass

- (UIView *)getViewInRect:(CGRect)rect
{
    UIView *theView = [[UIView alloc] initWithRect:rect];
    [theView setUserInteractionEnabled:YES];

    UITapGestureRecognizer *tap = [[[UITapGestureRecognizer alloc] 
                                    initWithTarget:self 
                                    action:@selector(handleTap)] 
                                   autorelease];
    [aText addGestureRecognizer:tap];

    return theView;
}

- (UIImageView *)getImageViewInRect:(CGRect)rect
{
    UIImageView *theView = [[UIImageView alloc] initWithRect:rect];
    [theView setUserInteractionEnabled:YES];

    UITapGestureRecognizer *tap = [[[UITapGestureRecognizer alloc] 
                                        initWithTarget:self 
                                                action:@selector(handleTap)] 
                                   autorelease];
    [theView addGestureRecognizer:tap];

    return [theView autorelease];    
}

- (void)handleTap
{
    NSLog(@"Tap Handled!!", nil);
}

@end

更新2：

將UITapGestureRecognizer添加到View的所有子視圖不能解決問題...

修理它！！！

好！！ 問題是CGRect for theView，它的寬度設置為0.0！

Answer 1

你試過這個嗎？

[view setUserInteractionEnabled:YES];

Answer 2

在.h文件中將視圖聲明為ivar。 合成然后像這樣調用它：

[self.theview setMultipleTouchEnabled:YES];

不要忘記在viewDidLoad方法中分配和初始化該視圖。

而已。