在iOS上使用内置音频控制与cocoalibspotify

Question

我如何使我的cocoalibspotify应用程序的iOS响应内置的暂停/播放和下一个/上一个控制?

Answer 1

在主视图控制器中，应用程序需要订阅远程控制事件。

- (void)viewDidLoad {
    // ...
    [[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
    // ...
}

远程控制按钮按下将触发视图控制器上的remoteControlReceivedEvent:。事件处理方法如下:

- (void) remoteControlReceivedWithEvent: (UIEvent *) receivedEvent {
    if (receivedEvent.type == UIEventTypeRemoteControl) {
        switch (receivedEvent.subtype) {                
            case UIEventSubtypeRemoteControlPause:
                // Handle pause
                break;
            case UIEventSubtypeRemoteControlPlay:
                // Handle play
                break;
            case UIEventSubtypeRemoteControlPreviousTrack:
                // Handle Previous
                break;
            case UIEventSubtypeRemoteControlNextTrack:
                // Handle Next
                break;
            default:
                break;
        }
    }
}