iphone SDK：イメージアレイで斜めにスクロールすることはできませんか？

Question

大きな画像があります。メモリを節約するために私は一度に全体像をロードしたくないので、私は、私は1枚の画像から小さな画像片をスクロールすることができ3X3アレー

036 
147 
258 

などの9枚の画像に画像を分割します（1,1）から（1,2）（1,3）、または（1,1）から（2,1）（3,1）までのように、 1,1）〜（2,2）または（3,3）である。

私は、写真を左右に、または上下にスクロールできますが、斜めにはできないようです。

私が斜めにスクロールする場合は、すべての画像は、このように、台無しになります。

360 
471 
582 

はどのようにして斜めにスクロールし、および/またはスクロールしながらセクションをスキップすることができますか？ここで

は私のコードです：

の.h

CGPoint first; 
IBOutlet UIScrollView *scr; 
NSMutableArray *ary; 
int x_total; 
int y_total; 
BOOL move; 
BOOL inside; 
IBOutlet UIView *mapview; 
int x_begin; 
int y_begin; 
int x_times; 
int y_times; 

カット画像

move = NO; 
    inside = NO; 
    x_times = 0; 
    y_total = 0; 
    ary = [NSMutableArray new]; 



    for (int i = 0; i < 3; i++) { 
     for (int j = 0; j < 3; j++) { 
      UIImageView *img = [[UIImageView alloc] initWithImage:[UIImage imageNamed:[NSString stringWithFormat:@"map14_%d_%d.jpg", i ,j]]]; 
      [img setFrame:CGRectMake((i-1) *64, (j-1)*64, 64, 64)]; 
      [mapview addSubview:img]; 
      [ary addObject:img]; 

     } 
    } 
    x_begin = 64*2; 
    y_begin = 64*2; 
    x_total = 0; 
    y_total = 0; 

と指のタッチを制御し、

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{ 
    NSLog(@"touchesBegan"); 
    //Set Animation 
    [UIView beginAnimations:nil context:nil]; 
    [UIView setAnimationDuration:1]; 
    [UIView setAnimationBeginsFromCurrentState:YES]; 

    //Trigger start 
    //UITouch *touch = [touches anyObject]; 
    NSSet *teaches = [event allTouches]; 

    for (UITouch *myTouch in teaches){ 
     //first = [myTouch previousLocationInView:self.view]; 
     CGPoint currentTouchPosition = [myTouch previousLocationInView:mapview]; 
     //first = [myTouch previousLocationInView:mapview]; 
     NSLog(@"currentTouchPosition x is %f",currentTouchPosition.x); 
     NSLog(@"currentTouchPosition y is %f",currentTouchPosition.y); 
     NSLog(@"mapview.frame.origin.x is %d",mapview.frame.origin.x); 
     NSLog(@"mapview.frame.origin.y is %d",mapview.frame.origin.y); 

     if ((currentTouchPosition.x > 0 && currentTouchPosition.x < 64) && (currentTouchPosition.y > 0 && currentTouchPosition.y < 64)) { 
      first = currentTouchPosition; 
      inside = YES; 
     }else { 
      first.x = 0; 
      first.y = 0; 
      inside = NO; 
     }  

    } 
    [UIView commitAnimations]; 
} 

を移動する方法

タッチは、あなたが車輪の再発明しようとしているようですが少し聞こえる

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{ 

    //Touch Trigger 
    NSSet *teaches = [event allTouches]; 

    for (UITouch *myTouch in teaches){ 
     CGPoint currentTouchPosition = [myTouch previousLocationInView:mapview]; 
     NSLog(@"currentTouchPosition.x is %d ",currentTouchPosition.x); 

     if (inside) { 
      if ((currentTouchPosition.x > 0 && currentTouchPosition.x < 64) && (currentTouchPosition.y > 0 && currentTouchPosition.y < 64)) { 
       int x = first.x-currentTouchPosition.x; 
       int y = first.y-currentTouchPosition.y; 

       x_total += x; 
       y_total += y; 
       NSLog(@"x_total is %d",x_total); 
       NSLog(@"y_total is %d",y_total); 

       NSArray *arr = [mapview subviews]; 
       NSEnumerator *enumerator = [arr objectEnumerator]; 
       id anObject; 
       UIImageView *tmpimg; 

       while (anObject = [enumerator nextObject]) { 
        if([anObject isMemberOfClass:[UIImageView class]]) { 
         tmpimg = (UIImageView *)anObject; 
         if (x < 0) { 
          [tmpimg setFrame:CGRectMake(tmpimg.frame.origin.x-x, tmpimg.frame.origin.y, tmpimg.frame.size.width, tmpimg.frame.size.height)]; 
         }else { 
          [tmpimg setFrame:CGRectMake(tmpimg.frame.origin.x-x, tmpimg.frame.origin.y, tmpimg.frame.size.width, tmpimg.frame.size.height)]; 
         } 
         if (y < 0) { 
          [tmpimg setFrame:CGRectMake(tmpimg.frame.origin.x, tmpimg.frame.origin.y-y, tmpimg.frame.size.width, tmpimg.frame.size.height)]; 
         }else { 
          [tmpimg setFrame:CGRectMake(tmpimg.frame.origin.x, tmpimg.frame.origin.y-y, tmpimg.frame.size.width, tmpimg.frame.size.height)]; 
         } 

        } 
       } 
       if (y_times == 0) { 
        if (y_total >= 64/2) { 
         y_times ++; 
         for (int i = 0; i < 3; i++) { 
          int g; 
          if (i == 0) { 
           g = 0; 
          }else if (i == 1) { 
           g = 3; 
          }else if (i == 2) { 
           g = 6; 
          } 
          UIImageView *tmpimg; 
          tmpimg = [ary objectAtIndex:g]; 
          [[ary objectAtIndex:g] setImage:[UIImage imageNamed:[NSString stringWithFormat:@"map14_%d_3.jpg" ,i]]]; 
          [[ary objectAtIndex:g] setFrame:CGRectMake(tmpimg.frame.origin.x, tmpimg.frame.origin.y+(64+64*2), 64, 64)]; 
          tmpimg = nil; 
         } 
         y_total= 0; 
        } 
        if (x_times == 0) { 
         if (x_total >= 64/2) { 
          x_times ++; 

          for (int i = 0; i < 3; i++) { 
           UIImageView *tmpimg; 
           tmpimg = [ary objectAtIndex:i]; 
           [[ary objectAtIndex:i] setImage:[UIImage imageNamed:[NSString stringWithFormat:@"map14_3_%d.jpg" ,i]]]; 
           [[ary objectAtIndex:i] setFrame:CGRectMake(tmpimg.frame.origin.x+(64+64*2), tmpimg.frame.origin.y, 64, 64)]; 
           tmpimg = nil; 
          } 
          x_total= 0; 
         } 

        }else if (x_times == 1) { 
         if (x_total >= 64) { 
          x_times ++; 

          for (int i = 3; i < 6; i++) { 
           UIImageView *tmpimg; 
           tmpimg = [ary objectAtIndex:i]; 
           [[ary objectAtIndex:i] setImage:[UIImage imageNamed:[NSString stringWithFormat:@"map14_4_%d.jpg" ,i-3]]]; 
           [[ary objectAtIndex:i] setFrame:CGRectMake(tmpimg.frame.origin.x+(64+64*2), tmpimg.frame.origin.y, 64, 64)]; 
           tmpimg = nil; 
          } 
          x_total= 0; 


         }else if (x_total <= -64/2) { 
          x_times --; 

           for (int i = 0; i < 3; i++) { 
            UIImageView *tmpimg; 
            tmpimg = [ary objectAtIndex:i]; 
            [[ary objectAtIndex:i] setImage:[UIImage imageNamed:[NSString stringWithFormat:@"map14_0_%d.jpg" ,i]]]; 
            [[ary objectAtIndex:i] setFrame:CGRectMake(tmpimg.frame.origin.x-(64+64*2), tmpimg.frame.origin.y, 64, 64)]; 
            tmpimg = nil; 
           } 
           x_total= 0; 


         } 
        }else if (x_times == 2) { 
         if (x_total >= 64) { 
          x_times ++; 
          for (int i = 6; i < 9; i++) { 
           UIImageView *tmpimg; 
           tmpimg = [ary objectAtIndex:i]; 
           [[ary objectAtIndex:i] setImage:[UIImage imageNamed:[NSString stringWithFormat:@"map14_5_%d.jpg" ,i-6]]]; 
           [[ary objectAtIndex:i] setFrame:CGRectMake(tmpimg.frame.origin.x+(64+64*2), tmpimg.frame.origin.y, 64, 64)]; 
           tmpimg = nil; 
          } 
          x_total= 0; 
         }else if (x_total <= -64/2) { 
          x_times --; 
          for (int i = 3; i < 6; i++) { 
           UIImageView *tmpimg; 
           tmpimg = [ary objectAtIndex:i]; 
           [[ary objectAtIndex:i] setImage:[UIImage imageNamed:[NSString stringWithFormat:@"map14_1_%d.jpg" ,i-3]]]; 
           [[ary objectAtIndex:i] setFrame:CGRectMake(tmpimg.frame.origin.x-(64+64*2), tmpimg.frame.origin.y, 64, 64)]; 
           tmpimg = nil; 
          } 
          x_total= 0; 
         } 
        }else if (x_times == 3) { 
         if (x_total <= -64/2) { 
          x_times --; 
          for (int i = 6; i < 9; i++) { 
           UIImageView *tmpimg; 
           tmpimg = [ary objectAtIndex:i]; 
           [[ary objectAtIndex:i] setImage:[UIImage imageNamed:[NSString stringWithFormat:@"map14_2_%d.jpg" ,i-6]]]; 
           [[ary objectAtIndex:i] setFrame:CGRectMake(tmpimg.frame.origin.x-(64+64*2), tmpimg.frame.origin.y, 64, 64)]; 
           tmpimg = nil; 
          } 
          x_total= 0; 
         } 
        } 
       } 
       if (y_times == 1) { 
        if (y_total <= -64/2) { 
         y_times --; 
         for (int i = 0; i < 3; i++) { 
          int g; 
          if (i == 0) { 
           g = 0; 
          }else if (i == 1) { 
           g = 3; 
          }else if (i == 2) { 
           g = 6; 
          } 
          UIImageView *tmpimg; 
          tmpimg = [ary objectAtIndex:g]; 
          [[ary objectAtIndex:g] setImage:[UIImage imageNamed:[NSString stringWithFormat:@"map14_%d_0.jpg" ,i]]]; 
          [[ary objectAtIndex:g] setFrame:CGRectMake(tmpimg.frame.origin.x, tmpimg.frame.origin.y-(64+64*2), 64, 64)]; 
          tmpimg = nil; 
         } 
         y_total= 0; 
        } 
        if (x_times == 0) { 
         if (x_total >= 64/2) { 
          x_times ++; 

          for (int i = 0; i < 3; i++) { 
           UIImageView *tmpimg; 
           tmpimg = [ary objectAtIndex:i]; 
           if (i == 0) { 
            [[ary objectAtIndex:i] setImage:[UIImage imageNamed:[NSString stringWithFormat:@"map14_3_%d.jpg" ,i+3]]]; 
           }else { 
            [[ary objectAtIndex:i] setImage:[UIImage imageNamed:[NSString stringWithFormat:@"map14_3_%d.jpg" ,i]]]; 
           } 
           [[ary objectAtIndex:i] setFrame:CGRectMake(tmpimg.frame.origin.x+(64+64*2), tmpimg.frame.origin.y, 64, 64)]; 
           tmpimg = nil; 
          } 
          x_total= 0; 
         } 

        }else if (x_times == 1) { 
         if (x_total >= 64) { 
          x_times ++; 

          for (int i = 3; i < 6; i++) { 
           UIImageView *tmpimg; 
           tmpimg = [ary objectAtIndex:i]; 
           if (i == 3) { 
            [[ary objectAtIndex:i] setImage:[UIImage imageNamed:[NSString stringWithFormat:@"map14_4_%d.jpg" ,i]]]; 
           }else { 
            [[ary objectAtIndex:i] setImage:[UIImage imageNamed:[NSString stringWithFormat:@"map14_4_%d.jpg" ,i-3]]]; 
           } 
           [[ary objectAtIndex:i] setFrame:CGRectMake(tmpimg.frame.origin.x+(64+64*2), tmpimg.frame.origin.y, 64, 64)]; 
           tmpimg = nil; 
          } 
          x_total= 0; 


         }else if (x_total <= -64/2) { 
          x_times --; 

          for (int i = 0; i < 3; i++) { 
           UIImageView *tmpimg; 
           tmpimg = [ary objectAtIndex:i]; 
           if (i == 0) { 
            [[ary objectAtIndex:i] setImage:[UIImage imageNamed:[NSString stringWithFormat:@"map14_0_%d.jpg" ,i+3]]]; 
           }else { 
            [[ary objectAtIndex:i] setImage:[UIImage imageNamed:[NSString stringWithFormat:@"map14_0_%d.jpg" ,i]]]; 
           } 
           [[ary objectAtIndex:i] setFrame:CGRectMake(tmpimg.frame.origin.x-(64+64*2), tmpimg.frame.origin.y, 64, 64)]; 
           tmpimg = nil; 
          } 
          x_total= 0; 

         } 
        }else if (x_times == 2) { 
         if (x_total >= 64) { 
          x_times ++; 
          for (int i = 6; i < 9; i++) { 
           UIImageView *tmpimg; 
           tmpimg = [ary objectAtIndex:i]; 
           if (i == 3) { 
            [[ary objectAtIndex:i] setImage:[UIImage imageNamed:[NSString stringWithFormat:@"map14_5_%d.jpg" ,i-3]]]; 
           }else { 
            [[ary objectAtIndex:i] setImage:[UIImage imageNamed:[NSString stringWithFormat:@"map14_5_%d.jpg" ,i-6]]]; 
           } 
           [[ary objectAtIndex:i] setFrame:CGRectMake(tmpimg.frame.origin.x+(64+64*2), tmpimg.frame.origin.y, 64, 64)]; 
           tmpimg = nil; 
          } 
          x_total= 0; 
         }else if (x_total <= -64/2) { 
          x_times --; 
          for (int i = 3; i < 6; i++) { 
           UIImageView *tmpimg; 
           tmpimg = [ary objectAtIndex:i]; 
           if (i == 3) { 
            [[ary objectAtIndex:i] setImage:[UIImage imageNamed:[NSString stringWithFormat:@"map14_1_%d.jpg" ,i]]]; 
           }else { 
            [[ary objectAtIndex:i] setImage:[UIImage imageNamed:[NSString stringWithFormat:@"map14_1_%d.jpg" ,i-3]]]; 
           } 
           [[ary objectAtIndex:i] setFrame:CGRectMake(tmpimg.frame.origin.x-(64+64*2), tmpimg.frame.origin.y, 64, 64)]; 
           tmpimg = nil; 
          } 
          x_total= 0; 
         } 
        }else if (x_times == 3) { 
         if (x_total <= -64/2) { 
          x_times --; 
          for (int i = 6; i < 9; i++) { 
           UIImageView *tmpimg; 
           tmpimg = [ary objectAtIndex:i]; 
           if (i == 3) { 
            [[ary objectAtIndex:i] setImage:[UIImage imageNamed:[NSString stringWithFormat:@"map14_2_%d.jpg" ,i-3]]]; 
           }else { 
            [[ary objectAtIndex:i] setImage:[UIImage imageNamed:[NSString stringWithFormat:@"map14_2_%d.jpg" ,i-6]]]; 
           } 
           [[ary objectAtIndex:i] setFrame:CGRectMake(tmpimg.frame.origin.x-(64+64*2), tmpimg.frame.origin.y, 64, 64)]; 
           tmpimg = nil; 
          } 
          x_total= 0; 
         } 
        } 
       } 
       first.x = currentTouchPosition.x; 
       first.y = currentTouchPosition.y; 
       arr=nil; 

      }else { 
       first.x = 0; 
       first.y = 0; 
       inside = NO; 
      } 


     }else { 
      if ((currentTouchPosition.x > 0 && currentTouchPosition.x < 64) && (currentTouchPosition.y > 0 && currentTouchPosition.y < 64)) { 
       first = currentTouchPosition; 
       inside = YES; 
      }else { 
       first.x = 0; 
       first.y = 0; 
       inside = NO; 
      } 
     } 


    } 
} 

Answer 1

を移動しました。

UIScrollViewを調べましたか？

特に、大きな画像をタイルにどのようにダイスし、任意の方向にスクロールできるスクロールビュー内で必要に応じて配置するかを示すサンプルコード（ImageSuite、私は信じている）があります。

これは、たとえばMKMapView（Maps.app）がどのように動作するかです。