我有一个NSStatusItem,它带有一个显示图像的自定义NSView。无论菜单是否打开,它都会显示不同的图像,就像这样:
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];
}}
(当然这不是全部,但我希望所有相关代码都能理解我的问题)
现在,如果正在进行上载,我想在此NSView(在此NSStatusItem中)中显示一个NSProgressIndicator,这意味着1.上传开始时设置NSProgressIndicator2.收到什么?===>隐藏NSProgressIndicator再次显示图像。
我该如何解决这个问题?
请帮帮我。谢谢
以下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;
您也可以在基于菜单的状态项中为自己绘制进度条
在进度更改时,您可以简单地更改状态项目的图像。
- (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];
}
p.s.该代码是为ARC(自动参考计数)编写的,因此没有保留或释放。