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touchesBegan: withEvent: 不執(zhí)行解決_IOS_腳本之家
UIScrollView或UIImageView時,當點擊時UIScrollView或UIImageView會截獲touch事件,導致touchesBegan: withEvent:/touchesMoved: withEvent:/touchesEnded: withEvent: 等方法不執(zhí)行。解決辦法:當UIScrollView 或 UIImageView 截獲touch事件后,讓其傳遞下去即可
www.dbjr.com.cn/article/1010...htm 2025-6-9
舉例講解iOS開發(fā)中拖動視圖的實現(xiàn)_IOS_腳本之家
復制代碼代碼如下: touchesBegan:withEvent: //觸摸屏幕的最開始被調(diào)用 touchesMoved:withEvent: //移動過程中被調(diào)用 touchesEnded:withEvent: //動作結(jié)束時被調(diào)用 touchesCancelled:WithEvent: 從方法的命名可以清晰的看出該方法何時被調(diào)用,最后一個比較特殊。touchesCancelled:WithEvent:在Cocoa Touch必須響應(yīng)持續(xù)觸摸事件的系...
www.dbjr.com.cn/article/738...htm 2025-6-2
iOS開發(fā)之觸摸事件以及手勢_IOS_腳本之家
iOS中的事件分為三類:觸摸事件、加速計事件、遠程控制事件。只有繼承了UIResponder的對象才能接收并處理事件,稱之為“響應(yīng)者對象”。UIApplication、UIViewController、UIView都繼承自UIResponder。UIResponder內(nèi)部提供的方法來處理事件: 觸摸事件:touchesBegan、touchesMoved、touchesEnded、touchesCancelled 加速計事件:motionBega...
www.dbjr.com.cn/article/821...htm 2025-5-17
iOS中UIActionSheet動態(tài)添加按鈕_IOS_腳本之家
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { UIActionSheet *sheet=[[UIActionSheet alloc]initWithTitle:@"標題"delegate:self cancelButtonTitle:nil destructiveButtonTitle:nil otherButtonTitles:nil, nil]; // 逐個添加按鈕(比如可以是數(shù)組循環(huán)) [sheet addButtonWithTitle:@"Item A"]...
www.dbjr.com.cn/article/1163...htm 2025-5-26
iOS NSURLSessionDownloadTask設(shè)置代理文件下載的示例_IOS_腳本之家
-(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event { [self delegate]; } -(void)delegate { //1.url NSURL *url = [NSURL URLWithString:@"http://120.25.226.186:32812/resources/images/minion_03.png"]; //2.創(chuàng)建請求對象 ...
www.dbjr.com.cn/article/1321...htm 2025-5-5
iOS開發(fā)中使用cocos2d添加觸摸事件的方法_IOS_腳本之家
-(void) ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent*)event 手指在屏幕上移動時調(diào)用的方法: 復制代碼代碼如下: -(void) ccTouchesMoved:(NSSet *)touches withEvent:(UIEvent*)event 當手指從屏幕上提起時調(diào)用的方法: 復制代碼代碼如下:
www.dbjr.com.cn/article/732...htm 2025-6-3
iOS開發(fā)之觸摸事件_IOS_腳本之家
沒有實現(xiàn)touchesBegan:withEvent方法 重寫UIResponder 觸摸響應(yīng)方法: 復制代碼代碼如下: #pragma mark 觸摸開始時會調(diào)用 - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event; #pragma mark 觸摸移動時會頻繁調(diào)用 - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event; ...
www.dbjr.com.cn/article/823...htm 2025-5-25