如何將手勢識別器從一個視圖傳遞到另一個視圖

Question

我有一個視圖，其中包含幾個子視圖，這些子視圖是具有多個按鈕的復雜控件 superview具有用於水龍頭，滑動等的手勢識別器。

在某些情況下，當接收單次或雙次觸摸時，我希望超級視圖將手勢識別器傳遞給子視圖以進行治療。

例如：

singletaprecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(onSingleTapGestureRecognizerDetected:)];

- (void)onSingleTapGestureRecognizerDetected:(UITapGestureRecognizer*)theTapGestureRecognizer
{
    if (someCaseHappens) {
        // do something with the gesture - for instance - move a control from one place to another or some other UI action in the superview
    }
    else {
        // the subview will need to get the gesture and do something with it (imagine the touch was inside a button in a subview - the top superview should disregard the gesture and the button should be pressed) - THIS ISN"T HAPPENING NOW
    }
}

Answer 1

好吧，您可以創建一個繼承自UIView的自定義視圖，然后覆蓋：

- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event

通過此方法，您可以返回要處理事件的視圖。

請查看： https ： //developer.apple.com/library/ios/documentation/UIKit/Reference/UIView_Class/UIView/UIView.html#//apple_ref/occ/instm/UIView/hitTest : withEvent ：