多個UIScrollView

Question

讓我直接點，

有3滾動像喜歡附件，我很困惑的代表。 看到的鏈接： image screenshoot

在這裏它是：

1. 渦旋件1 - 可滾動自由（水平/垂直）
2. 滾動 - 僅
3. 渦盤2垂直滾動3 - 僅限橫向滾動

，我想打，如果我是滾動「滾動2」水平那麼「滾動1」是滾動了。 如果我滾動「滾動2」垂直然後「滾動3」也滾動。

如果有示例代碼/示例，它會很好。

關於，

天空。

Answer 1

我做了類似於兩個NSTableViews的事情，滾動一個會進行第二次滾動。

下面是該代碼：

MyScrollView.h

#import <AppKit/AppKit.h> 
#import "AppDelegate.h" 

@interface MyScrollView : NSScrollView 

@property (strong) AppDelegate *app; 

@end 

MyScrollView.m

#import "MyScrollView.h" 
//#define LogRect(RECT) NSLog(@"%s: (%0.0f, %0.0f) %0.0f x %0.0f", #RECT, RECT.origin.x, RECT.origin.y, RECT.size.width, RECT.size.height) 

@implementation MyScrollView 
@synthesize app; 

- (void)reflectScrolledClipView:(NSClipView *)aClipView{ 
    [super reflectScrolledClipView:(NSClipView *)aClipView]; 


    //post a notification 
    app=[[AppDelegate alloc] init]; 

    if (app) { 
     [[NSNotificationCenter defaultCenter] postNotificationName:@"scrolled" object:aClipView]; 
    } 

}  
@end 

AppDelegate.h

#import <Cocoa/Cocoa.h> 

@interface AppDelegate : NSObject <NSApplicationDelegate> 

@property (assign) IBOutlet NSWindow *window; 

@property (strong) IBOutlet NSTableView *aTableView; 
@property (strong) IBOutlet NSTableView *bTableView; 
@property (strong) IBOutlet NSTableView *cTableView; 

@property (strong) IBOutlet NSView *aView; 
@property (strong) IBOutlet NSView *bView; 

@end 

AppDelegate.m

#import "AppDelegate.h" 

@implementation AppDelegate 

/* 
Unwanted methods are not shown here, like delegates, datasource, init etc 
*/ 

-(void)scrollTable:(NSNotification *)aNotification{ 
    NSPoint globalLocation = [NSEvent mouseLocation ]; 
    NSPoint windowLocationForA = [[aView window ] convertScreenToBase:globalLocation ]; 
    NSPoint viewLocationForA = [aView convertPoint: windowLocationForA fromView: nil ]; 
    NSPoint windowLocationForB = [[bView window ] convertScreenToBase:globalLocation ]; 
    NSPoint viewLocationForB = [bView convertPoint: windowLocationForB fromView: nil ]; 

    if (NSPointInRect(viewLocationForA, [aView bounds])) { // i scrolled on A 
     NSLog(@"Scrolled A"); 
     if ([[[aTableView superview]superview] isEqualTo:[[aNotification object] superview]]) { 
      [bTableView scrollRectToVisible:[[aNotification object] documentVisibleRect]]; 
      [cTableView scrollRectToVisible:[[aNotification object] documentVisibleRect]]; 
     } 
    } 
    else if (NSPointInRect(viewLocationForB, [bView bounds])) { // i scrolled on B 
     NSLog(@"Scrolled B"); 
     if ([[[bTableView superview]superview] isEqualTo:[[aNotification object] superview]]){ 
      [aTableView scrollRectToVisible:[[aNotification object] documentVisibleRect]]; 
      [cTableView scrollRectToVisible:[[aNotification object] documentVisibleRect]]; 
     } 
    } 
    else{ // i scrolled on C 
     NSLog(@"Scrolled C"); 
     if ([[[cTableView superview]superview] isEqualTo:[[aNotification object] superview]]){ 
      [aTableView scrollRectToVisible:[[aNotification object] documentVisibleRect]]; 
      [bTableView scrollRectToVisible:[[aNotification object] documentVisibleRect]]; 
     } 
    } 
} 


-(void)awakeFromNib{ 

    [[NSNotificationCenter defaultCenter] addObserver:self 
              selector:@selector(scrollTable:) 
               name:@"scrolled" 
               object:nil]; 

} 

@end