Question

HA ii，我在一个视图tableview和tab中有两个tableview，该选项卡隐藏在主视图下方，用户只能在主视图中看到tableview，用于查看用户必须单击选项卡上方按钮的选项卡，当用户点击按钮时，它会向上移动到主视图，我已使用此代码

完成此操作

-(IBAction) controlPanelShowHide:(id)sender
{

    CGRect frame = tab.frame;
    CGRect viewframe = hideviewoftab.frame;
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:0.9];
    if (!self.isExpanded)
    {
        self.isExpanded = YES;
        if (frame.origin.y -=240) {

        tab.frame = frame;
        }
        if (imageframe.origin.y -=240) {
             btnShowHide.frame =imageframe;
        }
        if (viewframe.origin.y -=240) {
            hideviewoftab.frame =viewframe;
        }



    } else {
        self.isExpanded = NO;
        if (frame.origin.y +=240) {

            tab.frame = frame;
        }
        if (imageframe.origin.y +=240) {
            btnShowHide.frame =imageframe;
        }
        if (viewframe.origin.y +=240) {
            hideviewoftab.frame =viewframe;
        }


    }
    [UIView commitAnimations];

}

使用此代码可以正常工作，但我需要使用触摸事件拖动此选项卡，即。当用户点击并按住它并在屏幕上拖动任何物品时（仅向上）＆gt;我认为这是通过- (void) touchesMoved:(NSSet*)touches withEvent:(UIEvent*)event来完成的但是我们怎么能这样做呢？抱歉非常糟糕的英语。希望你理解我的问题。提前致谢。编辑：

- (void) touchesBegan:(NSSet*)touches withEvent:(UIEvent*)event
{ CGPoint pt = [[touches anyObject] locationInView:self];     
    [tab beginAnimations:nil context:nil];
    [tab setAnimationDuration:0.1];             
    CGRect newFrame = tab.frame;
    newFrame.origin.y += pt.y - touchingPoint.y;    
    newFrame.origin.x += pt.x - touchingPoint.x;  
    [self setFrame:newFrame];   
    [tab commitAnimations]; 
}

- (void) touchesMoved:(NSSet*)touches withEvent:(UIEvent*)event 
{       
    CGPoint pt = [[touches anyObject] locationInView:self];     
    [tab beginAnimations:nil context:nil];
    [tab setAnimationDuration:0.1];             
    CGRect newFrame = tab.frame;
    newFrame.origin.y += pt.y - touchingPoint.y;    
    [self setFrame:newFrame];   
    [tab commitAnimations];     
}

Answer 1

阅读此链接

How can we move a view vertically upward and downwards?

此处使用此代码修改- (void) touchesMoved:(NSSet*)touches withEvent:(UIEvent*)event方法

- (void) touchesMoved:(NSSet*)touches withEvent:(UIEvent*)event 
{       
    CGPoint pt = [[touches anyObject] locationInView:self];     
    [UITableView beginAnimations:nil context:nil];
    [UITableView setAnimationDuration:0.1];             
    CGRect newFrame = self.frame;
    newFrame.origin.y += pt.y - touchingPoint.y;    
    newFrame.origin.x += pt.x - touchingPoint.x;  
    [self setFrame:newFrame];   
    [UITableView commitAnimations];     
}

TouchEvent在iphone中产生怀疑

1 个答案: