我有一个带有自定义NSView的NSStatusItem,用于显示图像。
不管菜单是否打开,它都会显示不同的图像,如下所示:

 isMenuVisible = NO;

- (void)awakeFromNib {

statusItem = [[NSStatusBar systemStatusBar] statusItemWithLength:NSVariableStatusItemLength];
[statusItem retain];

dragStatusView = [[DragStatusView alloc] init];
[dragStatusView retain];
dragStatusView.statusItem = statusItem;
[dragStatusView setMenu:statusMenu];
[dragStatusView setToolTip:NSLocalizedString(@"Menubar Countdown",
                                             @"Status Item Tooltip")];
[statusItem setView:dragStatusView];
[dragStatusView setTitle:@"11"];
}

- (void)drawImage:(NSImage *)aImage centeredInRect:(NSRect)aRect{
NSRect imageRect = NSMakeRect((CGFloat)round(aRect.size.width*0.5f-aImage.size.width*0.5f),
                              (CGFloat)round(aRect.size.height*0.5f-aImage.size.height*0.5f),
                              aImage.size.width,
                              aImage.size.height);
[aImage drawInRect:imageRect fromRect:NSZeroRect operation:NSCompositeSourceOver  fraction:1.0f];
}

- (void)drawRect:(NSRect)rect {
// Draw status bar background, highlighted if menu is showing
[statusItem drawStatusBarBackgroundInRect:[self bounds]
                            withHighlight:isMenuVisible];




if(isMenuVisible) {
    [self drawImage:image2 centeredInRect:rect];
}else {
    [self drawImage:image1 centeredInRect:rect];

}}


(当然,这还不是全部,但我希望所有相关代码都能理解我的问题)

现在,我想在此NSView中(在此NSStatusItem中)显示NSProgressIndicator(如果正在进行上传),这意味着
1.上载开始时设置NSProgressIndicator
2.收到了什么? ==>隐藏NSProgressIndicator再次显示图像。

我该如何解决?

请帮我。谢谢

最佳答案

这是基于视图的状态项的解决方案。

NSStatusBar *bar = [NSStatusBar systemStatusBar];
self.theItem = [bar statusItemWithLength:NSVariableStatusItemLength];
self.statusView = [[NSView alloc] initWithFrame:NSMakeRect(0, 0, 40, 20)];
NSProgressIndicator* progress = [[NSProgressIndicator alloc] initWithFrame:NSMakeRect(0, 0, 40, 20)];
[progress setIndeterminate:NO];
[self.statusView addSubview:progress];
self.theItem.view = self.statusView;


您还可以在基于菜单的状态项中绘制自己的进度条
更改进度时,您只需更改状态项的图像即可。

- (void) updateIconWithProgress:(float)aProgress
{
    NSImage* image = [NSImage imageNamed:@"small_icon_16_16.png"];
    NSImage* img = [image copy];
    [img lockFocus];

    NSRect rect = NSMakeRect(2, 4, 12.0*aProgress, 8.0);
    [[NSColor blueColor] set];
    [NSBezierPath fillRect:rect];

    [img unlockFocus];
    [self.theItem setImage:img];
}


ps。该代码是为ARC(自动引用计数)编写的,因此没有保留或释放。

关于cocoa - NSStatusItem中的NSProgressIndicator,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/11385499/

10-11 02:38