如何在图像上应用动画？

发布于 2024-12-09 17:30:11 字数 811 浏览 0 评论 0原文

您好，我正在开发一个应用程序，其中我触摸屏幕的位置会显示图像，此时我正在以这种方式执行此操作。

-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
    UITouch *move = [[event allTouches] anyObject];
    CGPoint MovePoint = [move locationInView:self.view];
    appDelegate.FinalMovePoint=MovePoint;   

    timer =[NSTimer scheduledTimerWithTimeInterval:0.5 target:self selector:@selector(Remaing) userInfo:nil repeats:YES];

    [self showImageWithText:@"LongBlue" atPoint:appDelegate.FinalMovePoint];
    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:0.1];
    imageView.alpha = 1.0;
    [UIView commitAnimations];
}

在此显示我的图像，但是当调用 NSTimer 时，图像会闪烁或隐藏，我需要图像，直到触摸 -(void)touchesEnded:(NSSet *)touches withEvent:(调用 UIEvent *)event 方法。请建议我如何完成这项工作。

原文

Hi I am developing a application in which where I touch on screen an image is shown at that point I am doing this in this way.

-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
    UITouch *move = [[event allTouches] anyObject];
    CGPoint MovePoint = [move locationInView:self.view];
    appDelegate.FinalMovePoint=MovePoint;   

    timer =[NSTimer scheduledTimerWithTimeInterval:0.5 target:self selector:@selector(Remaing) userInfo:nil repeats:YES];

    [self showImageWithText:@"LongBlue" atPoint:appDelegate.FinalMovePoint];
    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:0.1];
    imageView.alpha = 1.0;
    [UIView commitAnimations];
}

In this my image is shown but when the NSTimer is called image get blink or get hide I need the image until the touch the -(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event method called.
Please suggest me how can I do this work.

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帅的被狗咬 2024-12-16 17:30:12

试试这个。

-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
    UITouch *move = [[event allTouches] anyObject];
    CGPoint MovePoint = [move locationInView:self.view];
    appDelegate.FinalMovePoint=MovePoint;   

    timer =[NSTimer scheduledTimerWithTimeInterval:0.5 target:self selector:@selector(Remaing) userInfo:nil repeats:YES];

    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:0.1];
    imageView.alpha = 1.0;
    [self showImageWithText:@"LongBlue" atPoint:appDelegate.FinalMovePoint];

    [UIView commitAnimations];
}

Try this.

-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
    UITouch *move = [[event allTouches] anyObject];
    CGPoint MovePoint = [move locationInView:self.view];
    appDelegate.FinalMovePoint=MovePoint;   

    timer =[NSTimer scheduledTimerWithTimeInterval:0.5 target:self selector:@selector(Remaing) userInfo:nil repeats:YES];

    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:0.1];
    imageView.alpha = 1.0;
    [self showImageWithText:@"LongBlue" atPoint:appDelegate.FinalMovePoint];

    [UIView commitAnimations];
}

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