如何为iPhone应用程序制作拼贴？

我想在一些特定的形状，如心形，星形拼贴很多，等等。。。

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有谁能告诉我如何在我的iPhone应用程序中使用objective c以编程方式实现这一点吗？

如果您对核心图形几乎没有经验，并且希望以编程方式生成这些类型的形状，我建议您使用名为的Mac应用程序

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您可以使用它来绘制图形，并生成相应的Objective-C绘图代码。

如果您对核心图形没有什么经验，并且希望以编程方式生成这些类型的图形，我建议您使用名为的Mac应用程序

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您可以使用它来绘制形状，并生成相应的Objective-C绘图代码。

使用此代码。这里的图像是从照片库中挑选出来的，然后使用手势移动、缩放等。我使用所有的手势来帮助你对你放置的任何图像进行几乎任何平移、挤压和旋转

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{

[picker dismissModalViewControllerAnimated:YES];
imageCollage = [[UIImageView alloc]initWithFrame:CGRectMake(80, 80, 150, 150)];
[imageCollage setUserInteractionEnabled:YES];
imageCollage.image = [info objectForKey:UIImagePickerControllerOriginalImage];

holderView = [[UIView alloc] initWithFrame:CGRectMake(0,0,imageCollage.frame                                                          .size.width, imageCollage.frame.size.height)];
holderView.layer.cornerRadius = 6;
holderView.clipsToBounds = YES;
imageview = [[UIImageView alloc] initWithFrame:[holderView frame]];
[imageview setImage:imageCollage.image];
[holderView addSubview:imageview];

UIPinchGestureRecognizer *pinchRecognizer = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(scale:)];
[pinchRecognizer setDelegate:self];
[holderView addGestureRecognizer:pinchRecognizer];

UIRotationGestureRecognizer *rotationRecognizer = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotate:)];
[rotationRecognizer setDelegate:self];
[holderView addGestureRecognizer:rotationRecognizer];

UIPanGestureRecognizer *panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(move:)];
[panRecognizer setMinimumNumberOfTouches:1];
[panRecognizer setMaximumNumberOfTouches:1];
[panRecognizer setDelegate:self];
[holderView addGestureRecognizer:panRecognizer];

DeleteImage = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 30, 30)];
[DeleteImage setImage:[UIImage imageNamed:@"DeleteRed.png"]];
[holderView addSubview:DeleteImage];
DeleteImage.userInteractionEnabled = YES;

UITapGestureRecognizer *tapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapped:)];
[tapRecognizer setNumberOfTapsRequired:1];
[tapRecognizer setDelegate:self];
[DeleteImage addGestureRecognizer:tapRecognizer];

[BaseView addSubview:holderView];

[Trash setImage:[UIImage imageNamed:@"12456977871712665073hrum_trash.svg.med.png"] forState:UIControlStateNormal];
}

   -(void)scale:(id)sender
   {
BaseView.clipsToBounds = YES;
[BaseView bringSubviewToFront:[(UIPinchGestureRecognizer*)sender view]];

if([(UIPinchGestureRecognizer*)sender state] == UIGestureRecognizerStateEnded) {

    lastScale = 1.0;
    return;
}   
CGFloat scale = 1.0 - (lastScale - [(UIPinchGestureRecognizer*)sender scale]);

CGAffineTransform currentTransform = [(UIPinchGestureRecognizer*)sender view].transform;
CGAffineTransform newTransform = CGAffineTransformScale(currentTransform, scale, scale);

[[(UIPinchGestureRecognizer*)sender view] setTransform:newTransform];

lastScale = [(UIPinchGestureRecognizer*)sender scale];
  }

  -(void)rotate:(id)sender
  {

[BaseView bringSubviewToFront:[(UIRotationGestureRecognizer*)sender view]];

if([(UIRotationGestureRecognizer*)sender state] == UIGestureRecognizerStateEnded) {

    lastRotation = 0.0;
    return;
}

CGFloat rotation = 0.0 - (lastRotation - [(UIRotationGestureRecognizer*)sender rotation]);

CGAffineTransform currentTransform = [(UIPinchGestureRecognizer*)sender view].transform;
CGAffineTransform newTransform = CGAffineTransformRotate(currentTransform,rotation);

[[(UIRotationGestureRecognizer*)sender view] setTransform:newTransform];

lastRotation = [(UIRotationGestureRecognizer*)sender rotation];
   }

   -(void)move:(id)sender
  {
[[[(UITapGestureRecognizer*)sender view] layer] removeAllAnimations];
BaseView.clipsToBounds = YES;
[BaseView bringSubviewToFront:[(UIPanGestureRecognizer*)sender view]];
CGPoint translatedPoint = [(UIPanGestureRecognizer*)sender translationInView:self.view];

if([(UIPanGestureRecognizer*)sender state] == UIGestureRecognizerStateBegan) {

    firstX = [[sender view] center].x;
    firstY = [[sender view] center].y;
}

translatedPoint = CGPointMake(firstX+translatedPoint.x, firstY+translatedPoint.y);

[[sender view] setCenter:translatedPoint];

if([(UIPanGestureRecognizer*)sender state] == UIGestureRecognizerStateEnded) {

    CGFloat finalX = translatedPoint.x + (.20*[(UIPanGestureRecognizer*)sender velocityInView:self.view].x);
    CGFloat finalY = translatedPoint.y + (.20*[(UIPanGestureRecognizer*)sender velocityInView:self.view].y);

    if(UIDeviceOrientationIsPortrait([[UIDevice currentDevice] orientation])) {

        if(finalX < 0) {

            finalX = 0;
        }

        else if(finalX > 260) {

            finalX = 260;
        }

        if(finalY < 0) {

            finalY = 0;
        }

        else if(finalY > 416) {

            finalY = 416;
        }
    }

    else {

        if(finalX < 0) {

            finalX = 0;
        }

        else if(finalX > 416) {

            finalX = 260;
        }

        if(finalY < 0) {

            finalY = 0;
        }

        else if(finalY > 260) {

            finalY = 416;
        }
    }

    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:.35];
    [UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
    [[sender view] setCenter:CGPointMake(finalX, finalY)];
    [UIView commitAnimations];
}
   }



      -(void)tapped:(UIGestureRecognizer *)recogniser
      {
    NSLog(@"%@",recogniser.view);
    [Trash setImage:[UIImage imageNamed:@"trash_bin_recycle_quit_terminate_error_cancel_close_exit.png"] forState:UIControlStateNormal];

    [[[recogniser view] superview] removeFromSuperview];
}

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer {

    return ![gestureRecognizer isKindOfClass:[UIPanGestureRecognizer class]];
}

-（void）imagePickerController:（UIImagePickerController*）选取器未使用信息完成PickingMediaWithInfo:（NSDictionary*）信息
{
[picker dismissModalViewControllerAnimated:是]；
imageCollage=[[UIImageView alloc]initWithFrame:CGRectMake（80,80,150,150）]；
[imageCollage setUserInteractionEnabled:是]；
imageCollage.image=[info-objectForKey:UIImagePickerControllerOriginalImage]；
holderView=[[UIView alloc]initWithFrame:CGRectMake（0,0，imageCollage.frame.size.width，imageCollage.frame.size.height）]；
holderView.layer.cornerRadius=6；
holderView.clipsToBounds=是；
imageview=[[UIImageView alloc]initWithFrame:[holderView frame]]；
[imageview设置图像：imageCollage.image]；
[holderView addSubview:imageview]；
UIPinchGestureRecognizer*pinchRecognizer=[[UIPinchGestureRecognizer alloc]initWithTarget:自操作：@selector（scale:）]；
[PinchreCertifier setDelegate:self]；
[holderView addgestureRecognitor:PinchreRecogniter]；
UIRotationGestureRecognizer*rotationRecognizer=[[UIRotationGestureRecognizer alloc]initWithTarget:self action:@selector（rotate:）]；
[旋转识别器setDelegate:self]；
[holderView AddGestureRecognitor:旋转识别器]；
UIPangestureRecognitzer*PanRecognitzer=[[UIPangestureRecognitzer alloc]initWithTarget:自操作：@selector（move:）]；
[装甲识别器设置最小接触次数：1]；
[装甲识别器设置最大接触次数：1]；
[装甲识别器集合委派：自我]；
[holderView AddgestureRecognitor:装甲识别器]；
DeleteImage=[[UIImageView alloc]initWithFrame:CGRectMake（0,0,30,30）]；
[DeleteImage setImage:[UIImage ImageName:@“DeleteRed.png”]；
[holderView addSubview:DeleteImage]；
DeleteImage.userInteractionEnabled=是；
UITapGestureRecognizer*tapRecognizer=[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector（点击：）]；
[Tap识别器setNumberOfTapsRequired:1]；
[TapRecognitor setDelegate:self]；
[DeleteImage AddgestureRecognitizer:TapRecognitizer]；
[BaseView添加子视图：holderView]；
[Trash setImage:[UIImage ImageName:@“124569778712665073hrum_Trash.svg.med.png”]用于状态：UIControlStateNormal]；
}
-（无效）刻度：（id）发送者
{
BaseView.clipstobunds=是；
[BaseView将SubViewToFront:[（UIPinchGestureRecognizer*）发件人视图]]；
if（[（UIPinchGestureRecognizer*）发送方状态]==UIGestureRecognizerStateEnded）{
lastScale=1.0；
返回；
}   
CGFloat scale=1.0-（lastScale-[（uipinchgestrerecognizer*）发送方比例]；
CGAffineTransform currentTransform=[（UIPinchGetureRecognitizer*）发件人视图]。转换；
CGAffineTransform newTransform=CGAffineTransformScale（当前变换，缩放，缩放）；
[[（UIPinchGestureRecognitor*）发送方视图]设置转换：新转换]；
lastScale=[（UIPinchGestureRecognizer*）发送方比例]；
}
-（无效）旋转：（id）发送器
{
[BaseView将SubViewToFront:[（UIRotationGestureRecognitor*）发件人视图]；
if（[（UIRotationGestureRecognizer*）发送方状态]==UIGestureRecognizerStateEnded）{
最后旋转=0.0；
返回；
}
CGFloat rotation=0.0-（lastRotation-[（UIRotationGestureRecognitor*）发送方旋转]；
CGAffineTransform currentTransform=[（UIPinchGetureRecognitizer*）发件人视图]。转换；
CGAffineTransform newTransform=CGAffineTransformRotate（当前变换，旋转）；
[[（UIRotationGestureRecognitor*）发送方视图]设置转换：新转换]；
lastRotation=[（UIRotationGestureRecognitor*）发送方旋转]；
}
-（无效）移动：（id）发件人
{
[[（UITapgestureRecognitizer*）发送方视图]层]删除配置]；
BaseView.clipstobunds=是；
[BaseView将SubViewToFront:[（UIPanGestureRecognizer*）发件人视图]]；
CGPoint translatedPoint=[（UIPangestureRecognitor*）发送方翻译视图：self.view]；
if（[（UIPangestureRecognitizer*）发送方状态]==UIgestureRecognitizerStateStart）{
firstX=[[sender view]center].x；
firstY=[[sender view]center].y；
}
translatedPoint=CGPointMake（firstX+translatedPoint.x，firstY+translatedPoint.y）；
[[sender view]设置中心：translatedPoint]；
if（[（UIPangestureRecognitizer*）发送方状态]==UIgestureRecognitizerStateEnded）{
CGFloat finalX=translatedPoint.x+（.20*[（UIPangestureRecognitizer*）发送方速度视图：self.view].x）；
CGFloat finalY=translatedPoint.y+（.20*[（UIPangestureRecognitizer*）发送方速度视图：self.view].y）；
if（UIDeviceOrientationSportRait（[[UIDevice currentDevice]方向]）{
如果（finalX<0）{
finalX=0；
}
否则，如果（最终值>260）{
finalX=260；
}
如果（最终<0）{
finalY=0；
}
否则，如果（最终>416）{
最终=416；
}
}
否则{
如果（finalX<0）{
finalX=0；
}
否则如果（最终LX>416）{
finalX=260；
}
如果（最终<0）{
finalY=0；
}
否则，如果（最终>260）{
最终=416；
}
}
[UIView beginAnimations:nil上下文：NULL]；
[UIView setAnimationDuration:.35]；
[UIView设置动画曲线：UIV