IOS仿桌面拖動桌面圖標

時間 2020-06-14

標籤 ios 桌面拖動圖標欄目 iOS 简体版

原文原文鏈接

手勢拖動git

UIPanGestureRecognizer * panGestureRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self
                                                                                                    action:@selector(doMoveAction:)];

核心部分github

拖到到前面仍是後面的判斷spa

                    Boolean preMove =true;
                    //判斷先後移動四種狀況
                    //(ex<startPoint.x && ey<startPoint.y)||(ex>startPoint.x && ey<startPoint.y) ||(ex==startPoint.x && ey<startPoint.y)
  || (ey==startPoint.y && ex <startPoint.x)
                    //誤差5都認爲相等
                    CGFloat diff =10;
                    if ((startPoint.x-ex>diff && startPoint.y-ey>diff)||(ex>(startPoint.x+diff) && (ey+diff)<startPoint.y)
 ||(fabs(ex-startPoint.x)<=diff && (ey+diff)<startPoint.y)|| (fabs(ey-startPoint.y)<=diff && (ex+diff) <startPoint.x) )

完整代碼code

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