Ios 移动图像后如何确定图像的位置？

我正在使用

-（void）touchsmoved:（NSSet*）touchs with event:（UIEvent*）event

移动图像。如何在移动图像后固定其位置。我的意思是，我希望当我选择正确的位置时，图像不应再移动。

您可以这样做：

-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event  
{  
    UITouch *touch = [touches anyObject];  
    UIImageView *view1 =moveImageView;  
    CGPoint point = [touch  locationInView:self.view]; 
    //the right position
    if(point.x==?&&point.y==?){

             rightPosition = YES;
             moveImageView.frame = CGRectMake(point.x, point.y, 50, 50);
     }else{
            //the UIImageView you want to move 
            if(!rightPosition){
               moveImageView.frame = CGRectMake(point.x, point.y, 50, 50);
          } 
    }
}  

您可以这样做：

-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event  
{  
    UITouch *touch = [touches anyObject];  
    UIImageView *view1 =moveImageView;  
    CGPoint point = [touch  locationInView:self.view]; 
    //the right position
    if(point.x==?&&point.y==?){

             rightPosition = YES;
             moveImageView.frame = CGRectMake(point.x, point.y, 50, 50);
     }else{
            //the UIImageView you want to move 
            if(!rightPosition){
               moveImageView.frame = CGRectMake(point.x, point.y, 50, 50);
          } 
    }
}  

---

将PanGesture添加到包含图像的imageView

UIPanGestureRecognizer *panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panDetected:)];
[imageView addGestureRecognizer:panRecognizer];
//method to move imageView whereever you want in the view,you can also write conditions to restrict the imageView not to go beyond bounds.
- (void)panDetected:(UIPanGestureRecognizer *)panRecognizer
{
    CGPoint translation = [panRecognizer translationInView:self.view];
    CGPoint imageViewPosition = imageView.center;
    imageViewPosition.x += translation.x;
    imageViewPosition.y += translation.y;


    imageView.center = imageViewPosition;

    [panRecognizer setTranslation:CGPointZero inView:self.view];

//you can use if(panRecognizer.state==UIGestureRecognizerStateEnded){} condition to fix the position of the imageView.
}

---

将PanGesture添加到包含图像的imageView

UIPanGestureRecognizer *panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panDetected:)];
[imageView addGestureRecognizer:panRecognizer];
//method to move imageView whereever you want in the view,you can also write conditions to restrict the imageView not to go beyond bounds.
- (void)panDetected:(UIPanGestureRecognizer *)panRecognizer
{
    CGPoint translation = [panRecognizer translationInView:self.view];
    CGPoint imageViewPosition = imageView.center;
    imageViewPosition.x += translation.x;
    imageViewPosition.y += translation.y;


    imageView.center = imageViewPosition;

    [panRecognizer setTranslation:CGPointZero inView:self.view];

//you can use if(panRecognizer.state==UIGestureRecognizerStateEnded){} condition to fix the position of the imageView.
}

---

你试过什么？展示一些你是如何尝试的代码。无论如何，我会为图像存储一个bool值——万一触摸移动到某个右侧或另一个视图上方，我会检测到它，并更改bool值——作为不再移动的图像。然后在触摸移动后，我会检查bool值，如果这是真的，我会返回。您尝试了什么？展示一些你是如何尝试的代码。无论如何，我会为图像存储一个bool值——万一触摸移动到某个右侧或另一个视图上方，我会检测到它，并更改bool值——作为不再移动的图像。然后在触摸移动后，我会检查bool值，如果这是真的，则返回。