Question

我想要完成的是将UIImageView移动到iPhone屏幕的顶部边缘然后继续向上移动，但是一旦图像通过顶部边缘，让它出现在屏幕的底部，因为它继续通过。也是右倾和右转

它将通过Accelerometer和UISwipeGesture进行移动我使用了两个相同的图像，但没有正常工作如果有人有例子，请分享

可以使用一张图片吗？

enter image description here

如果有人知道这个任务，请告诉我。

感谢。

Answer 1

使用Accelerometer

你必须使用两个相同的图像

这里我正在使用1）_imageView 2）_imgViewTemp

         - (void)startUpdateAccelerometer:(UIImageView*)ImgView1 view:(UIView*)boundView
          {
          if ([self.mManager isAccelerometerAvailable] == YES) {
    // self.mManager.accelerometerUpdateInterval = 1.0/10000.0;
            [self.mManager startAccelerometerUpdatesToQueue:[NSOperationQueue mainQueue] withHandler:^(CMAccelerometerData *accelerometerData, NSError *error)
         {
           CGRect imgFrame = _imageView.frame;

            if(isWindowActive){

             imgFrame.origin.x -=accelerometerData.acceleration.y*8.0 ;

             if(!CGRectContainsRect(self.view.bounds, imgFrame))
                 imgFrame.origin.x = _imageView.frame.origin.x;

             imgFrame.origin.y -=accelerometerData.acceleration.x *8.0;
             if(!CGRectContainsRect(self.view.bounds, imgFrame))
                 imgFrame.origin.y = _imageView.frame.origin.y;
             _imageView.frame = imgFrame;

         }
         else{
             imgFrame.origin.x -=accelerometerData.acceleration.y*8.0 ;
             imgFrame.origin.y -=accelerometerData.acceleration.x *8.0;
             if(CGRectContainsRect(boundView.frame, _imageView.frame)){

                 _imgViewTemp.hidden=YES;
             }
             _imageView.frame=imgFrame;
             if ((_imageView.frame.origin.y>_bounderView.frame.size.height-_imageView.frame.size.height && _imageView.frame.origin.x>_bounderView.frame.size.width-_imageView.frame.size.width) ){
                 NSLog(@"-x hidden");
                 _imageView.frame=CGRectMake(_imageView.frame.origin.x, 0, _imageView.frame.size.width, _imageView.frame.size.height);
                 _imgViewTemp.frame=CGRectMake(_imgViewTemp.frame.origin.x, 0,_imageView.frame.size.width, _imageView.frame.size.height);
                 return ;
             }
             else if ((_imageView.frame.origin.y>_bounderView.frame.size.height-_imageView.frame.size.height && _imageView.frame.origin.x<0) ){
                 NSLog(@"-x hidden");
                 _imageView.frame=CGRectMake(_imageView.frame.origin.x, 0,_imageView.frame.size.width, _imageView.frame.size.height);
                 _imgViewTemp.frame=CGRectMake(_imgViewTemp.frame.origin.x, 0, _imageView.frame.size.width, _imageView.frame.size.height);
                 return ;
             }
             else if (_imageView.frame.origin.y<0 && _imageView.frame.origin.x>_bounderView.frame.size.width-_imageView.frame.size.width) {
                 _imageView.frame=CGRectMake(_imageView.frame.origin.x, _bounderView.frame.size.height-_imageView.frame.size.height,_imageView.frame.size.width, _imageView.frame.size.height);
                 _imgViewTemp.frame=CGRectMake(_imgViewTemp.frame.origin.x,_bounderView.frame.size.height-_imageView.frame.size.height,_imageView.frame.size.width, _imageView.frame.size.height);
                 return ;

             }else  if (_imageView.frame.origin.y<0 && _imageView.frame.origin.x<0) {
                 _imageView.frame=CGRectMake(_imageView.frame.origin.x, _bounderView.frame.size.height-_imageView.frame.size.height, _imageView.frame.size.width, _imageView.frame.size.height);
                 _imgViewTemp.frame=CGRectMake(_imgViewTemp.frame.origin.x,_bounderView.frame.size.height-_imageView.frame.size.height,_imageView.frame.size.width, _imageView.frame.size.height);
                 return ;
             }
             else if (imgFrame.origin.x<0) {
                 if (imgFrame.origin.x<-_imageView.frame.size.width) {
                     NSLog(@"less 70");
                     _imgViewTemp.hidden=YES;
                     _imageView.frame=_imgViewTemp.frame;
                 }else{
                     _imgViewTemp.hidden=NO;
                     _imgViewTemp.frame=CGRectMake(_bounderView.frame.size.width+imgFrame.origin.x, imgFrame.origin.y, _imageView.frame.size.width,  _imageView.frame.size.height);
                 }
             }
             else if (imgFrame.origin.x>_bounderView.frame.size.width-_imageView.frame.size.width){
                 if (imgFrame.origin.x>_bounderView.frame.size.width) {
                     _imgViewTemp.hidden=YES;
                     _imageView.frame=_imgViewTemp.frame;
                 }else{
                     _imgViewTemp.hidden=NO;
                     _imgViewTemp.frame=CGRectMake(-(_bounderView.frame.size.width-imgFrame.origin.x), imgFrame.origin.y, _imageView.frame.size.width,  _imageView.frame.size.height);
                 }
             }
             else if (imgFrame.origin.y<0){
                 if (imgFrame.origin.y<-_imageView.frame.size.height) {
                     _imgViewTemp.hidden=YES;
                     _imageView.frame=_imgViewTemp.frame;

                 }else{
                     _imgViewTemp.hidden=NO;
                     _imgViewTemp.frame=CGRectMake(imgFrame.origin.x,_bounderView.frame.size.height+imgFrame.origin.y, _imageView.frame.size.width,  _imageView.frame.size.height);
                 }
             }
             else if (imgFrame.origin.y>_bounderView.frame.size.height-imgFrame.size.height){
                 if (imgFrame.origin.y>_bounderView.frame.size.height) {
                     _imgViewTemp.hidden=YES;
                     _imageView.frame=_imgViewTemp.frame;
                 }else{
                     _imgViewTemp.hidden=NO;
                     _imgViewTemp.frame=CGRectMake(imgFrame.origin.x,-(_bounderView.frame.size.height-imgFrame.origin.y), _imageView.frame.size.width,  _imageView.frame.size.height);
                 }
             }

         }
      }];
   }
}

使用计时器

   NSTimer  *timer = [NSTimer scheduledTimerWithTimeInterval:0.004 target:self selector:@selector(timerFired:) userInfo:nil repeats:YES];
  [[NSRunLoop mainRunLoop] addTimer:timer forMode:NSRunLoopCommonModes];


 -(void)timerFired:(NSTimer *)timerData{

          UIImageView *imgView=_imageView;//firstimage
          NSInteger Xpos=imgView.frame.origin.x;
          NSInteger Ypos=imgView.frame.origin.y;
         if (movingPostion==Left) {
           Xpos-=1;
          }
         if (movingPostion==Right) {
           Xpos+=1;
          }
         if (movingPostion==Up) {
           Ypos-=1;
          }
         if (movingPostion==Down) {
           Ypos+=1;
      }

        imgView.frame =  CGRectMake(Xpos, Ypos, _imageView.frame.size.width, _imageView.frame.size.height);
        CGRect imgFrame = imgView.frame;
    _imageView.frame=imgFrame;
        if ((imgFrame.origin.y<0 && imgFrame.origin.x<0) || (imgFrame.origin.y<0 && imgFrame.origin.x>_bounderView.frame.size.width-_imageView.frame.size.width)) {
        imgFrame.origin.y=_bounderView.frame.size.height+imgFrame.origin.y;
        _imageView.frame=imgFrame;
        return;
    }else if((imgFrame.origin.y >_bounderView.frame.size.height && imgFrame.origin.x<0 ) || (imgFrame.origin.y>_bounderView.frame.size.height && imgFrame.origin.x>_bounderView.frame.size.width)){
        imgFrame.origin.y=-(_bounderView.frame.size.height-imgFrame.origin.y);
        _imageView.frame=imgFrame;
        return;
    }
    else if (imgFrame.origin.x<0 ) {
        if (imgFrame.origin.x<-_imageView.frame.size.width) {
            _imgViewTemp.hidden=YES;
            _imageView.frame=_imgViewTemp.frame;
        }else{
            _imgViewTemp.hidden=NO;
            _imgViewTemp.frame=CGRectMake(_bounderView.frame.size.width+imgFrame.origin.x, imgFrame.origin.y, _imageView.frame.size.width,  _imageView.frame.size.height);
        }
    }
    else if (imgFrame.origin.x>_bounderView.frame.size.width-_imageView.frame.size.width){
        if (imgFrame.origin.x>_bounderView.frame.size.width) {
            _imgViewTemp.hidden=YES;
            _imageView.frame=_imgViewTemp.frame;
        }else{
            _imgViewTemp.hidden=NO;
            _imgViewTemp.frame=CGRectMake(-(_bounderView.frame.size.width-imgFrame.origin.x), imgFrame.origin.y, _imageView.frame.size.width,  _imageView.frame.size.height);
        }
    }
    else if (imgFrame.origin.y<0){

        if (imgFrame.origin.y<-_imageView.frame.size.height) {
            _imgViewTemp.hidden=YES;
            _imageView.frame=_imgViewTemp.frame;

        }else{
            _imgViewTemp.hidden=NO;
            _imgViewTemp.frame=CGRectMake(imgFrame.origin.x,_bounderView.frame.size.height+imgFrame.origin.y, _imageView.frame.size.width,  _imageView.frame.size.height);
        }
    }
    else if (imgFrame.origin.y>_bounderView.frame.size.height-imgFrame.size.height ){
        if (imgFrame.origin.y>_bounderView.frame.size.height) {
            _imgViewTemp.hidden=YES;
            _imageView.frame=_imgViewTemp.frame;
        }else{
            _imgViewTemp.hidden=NO;
            _imgViewTemp.frame=CGRectMake(imgFrame.origin.x,-(_bounderView.frame.size.height-imgFrame.origin.y), _imageView.frame.size.width,  _imageView.frame.size.height);
        }


}

使用CMMotionManager使图像环绕屏幕边缘？

1 个答案: