有没有办法使我的应用程序响应Mac上的播放/暂停按钮？
编辑：
使用建议的代码,我得到这个控制台消息：
Could not connect the action buttonPressed: to target of class NSApplication
为什么会这样？
解决方法
我通过对NSApplication进行子类化(并将应用程序的主体类设置为此子类)在我自己的应用程序中完成了此操作.它捕获查找和播放/暂停键,并将其转换为我的应用程序代理中的特定操作.
相关行：
#import <IOKit/hidsystem/ev_keymap.h>
- (void)sendEvent:(NSEvent *)event
{
// Catch media key events
if ([event type] == NSSystemDefined && [event subtype] == 8)
{
int keyCode = (([event data1] & 0xFFFF0000) >> 16);
int keyFlags = ([event data1] & 0x0000FFFF);
int keyState = (((keyFlags & 0xFF00) >> 8)) == 0xA;
// Process the media key event and return
[self mediaKeyEvent:keyCode state:keyState];
return;
}
// Continue on to super
[super sendEvent:event];
}
- (void)mediaKeyEvent:(int)key state:(BOOL)state
{
switch (key)
{
// Play pressed
case NX_KEYTYPE_PLAY:
if (state == NO)
[(TSAppController *)[self delegate] togglePlayPause:self];
break;
// Rewind
case NX_KEYTYPE_FAST:
if (state == YES)
[(TSAppController *)[self delegate] seekForward:self];
break;
// PrevIoUs
case NX_KEYTYPE_REWIND:
if (state == YES)
[(TSAppController *)[self delegate] seekBack:self];
break;
}
}
