为什么我的可点击框需要双击才能获得等于1的点击次数？ [英] Why does my clickable box needs a double click to have a clickcount that is equal to 1?

问题描述

我有一个NSStatusItem有一个NSMenuItem包含一个自定义NSView。这个NSView包含3个可点击的NSBox子视图（实现mouseDown事件）。奇怪的是，当我运行应用程序，我进入状态项后，我按下播放按钮，我必须点击NSBox只有一次（这返回clickCount = 1）。当我进入另一个窗口或视图，我回到statusItem，我试图单击一个NSBoxes没有什么发生。当我双击项目，操作发生，并且clickCount也等于1.

   - （void）mouseDown NSEvent *）theEvent {
 NSLog（@ClickCount：％ld，theEvent.clickCount）; 
 if（[delegate respondingToSelector：@selector（boxClicked :)]）{
 [delegate boxClicked：self]; 
} 
} 
  

有没有人知道为什么会发生这种情况，我可以解决这个问题吗？

EDIT（完整的m文件代码）：

  #importClickableBox.h
 
 @implementation ClickableBox 
 
 @synthesize delegate; 
 
  - （BOOL）acceptsFirstMouse：（NSEvent *）theEvent 
 {
 return YES; 
} 
 
  - （void）viewDidMoveToWindow {
 [self addTrackingRect：[self bounds] owner：self userData：NULL assumeInside：NO]; 
} 
 
  - （void）mouseEntered：（NSEvent *）theEvent {
 if（[delegate respondingToSelector：@selector（boxRolledOver :)]）{
 [delegate boxRolledOver：self]; 
} 
} 
 
  - （void）mouseExited：（NSEvent *）theEvent {
 if（[delegate respondingToSelector：@selector（boxExited :)]）{
 [delegate boxExited：self]; 
} 
} 
 
  - （void）mouseDown：（NSEvent *）theEvent {
 NSLog（@ClickCount：％ld，theEvent.clickCount）; 
 if（[delegate respondingToSelector：@selector（boxClicked :)]）{
 [delegate boxClicked：self]; 
} 
} 
 
  - （void）dealloc {
 [delegate release]; 
 [super dealloc] 
} 
 
 @end 
  

解决方案>

这可能是因为您的视图不是关键。你可以为你的NSMenu和 -menuWillOpen：设置一个委托，你可以调用 [boxView.window makeFirstResponder：boxView]; 让它成为钥匙。

I have an NSStatusItem that has an NSMenuItem which contains a custom NSView. this NSView contains 3 Subviews of NSBox which are clickable (implemented the mouseDown event). Strangely, when I run the application and I enter the statusItem right after I pressed the 'Play'-Button I have to click the NSBox just one time (this returns clickCount = 1). When I enter another window or view and I go back to the statusItem and I try to click one of the NSBoxes nothing happens. When I double click the items, the actions happen and the clickCount is also equal to 1.

-(void)mouseDown:(NSEvent *)theEvent {
    NSLog(@"ClickCount: %ld", theEvent.clickCount);
    if ([delegate respondsToSelector:@selector(boxClicked:)]) {
        [delegate boxClicked:self];
    }
}

Does anyone have any idea why this is happening and how I can solve this?

EDIT (full m-file code):

#import "ClickableBox.h"

@implementation ClickableBox

@synthesize delegate;

- (BOOL)acceptsFirstMouse:(NSEvent *)theEvent
{
    return YES;
}

- (void)viewDidMoveToWindow {
    [self addTrackingRect:[self bounds] owner:self userData:NULL assumeInside:NO];
}

-(void)mouseEntered:(NSEvent *)theEvent {
    if ([delegate respondsToSelector:@selector(boxRolledOver:)]) {
        [delegate boxRolledOver:self];
    }
}

-(void)mouseExited:(NSEvent *)theEvent {
    if ([delegate respondsToSelector:@selector(boxExited:)]) {
        [delegate boxExited:self];
    }
}

-(void)mouseDown:(NSEvent *)theEvent {
    NSLog(@"ClickCount: %ld", theEvent.clickCount);
    if ([delegate respondsToSelector:@selector(boxClicked:)]) {
        [delegate boxClicked:self];
    }
}

- (void)dealloc {
    [delegate release];
    [super dealloc];
}

@end

解决方案

This could be because your view is not key. You can set a delegate for your NSMenu and on -menuWillOpen: you can call [boxView.window makeFirstResponder:boxView]; to make it key.

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