macos - 检查状态栏中是否存在项目？

Question

是否可以检查 OSX 状态栏中的系统项目是否可见，即蓝牙图标？

以前有人尝试过这样做吗？文档中没有提及任何内容。

Answer 1

事件菜单栏项目的路径在~/Library/Preferences/com.apple.systemuiserver.plist中列出

你可以这样检查

NSURL *userLibraryURL = [[NSFileManager defaultManager] URLForDirectory:NSLibraryDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:NO error:nil];
NSURL *systemUIServerPreferences = [userLibraryURL URLByAppendingPathComponent:@"Preferences/com.apple.systemuiserver.plist"];
NSDictionary *data = [NSDictionary dictionaryWithContentsOfURL:systemUIServerPreferences];
BOOL bluetoothIsInMenuBar = [data[@"menuExtras"] containsObject:@"/System/Library/CoreServices/Menu Extras/Bluetooth.menu"];

NSLog(@"%d", bluetoothIsInMenuBar);

或使用NSPredicate

NSURL *userLibraryURL = [[NSFileManager defaultManager] URLForDirectory:NSLibraryDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:NO error:nil];
NSURL *systemUIServerPreferences = [userLibraryURL URLByAppendingPathComponent:@"Preferences/com.apple.systemuiserver.plist"];
NSDictionary *data = [NSDictionary dictionaryWithContentsOfURL:systemUIServerPreferences];
NSPredicate *bluetoothPredicate = [NSPredicate predicateWithFormat:@"SELF contains 'Bluetooth'"];
BOOL bluetoothIsInMenuBar = [[data[@"menuExtras"] filteredArrayUsingPredicate:bluetoothPredicate] count];        

NSLog(@"%d", bluetoothIsInMenuBar);