iOS推送注册相关知识点

兼容iOS7 iOS8的注册方式

- (void)registRemoteNotification
{
if ([UIDevice currentDevice].systemVersion.floatValue >= 8.0)
{
    //iOS8 以后注册方式
    [[UIApplication sharedApplication] registerForRemoteNotifications];
    UIUserNotificationSettings *setting = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeBadge | UIUserNotificationTypeSound | UIUserNotificationTypeAlert categories:nil];
    [[UIApplication sharedApplication] registerUserNotificationSettings:setting];
}
else
{
    //iOS8以前注册方式
    [[UIApplication sharedApplication] registerForRemoteNotificationTypes:(UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeBadge)];
}
}

判断用户是否注册推送

     + (BOOL)isResigterNotification {
         if (iOS8以上) {
                UIUserNotificationSettings *setting = [[UIApplication sharedApplication] currentUserNotificationSettings];
                if (UIUserNotificationTypeNone != setting.types) {
                   return YES;
                 }
            } else {
                UIRemoteNotificationType type = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];
                if(UIRemoteNotificationTypeNone != type){
                     return YES;
                 } 
           return NO;
        }

option 相关

UIUserNotificationTypeNone  = 0 ,          == 0000                                 0
UIUserNotificationTypeBadge = 1 << 0 ,     == 0001      1左移0位     2^0 = 1
UIUserNotificationTypeSound = 1 << 1 ,     == 0010      1左移1位     2^1 = 2 
UIUserNotificationTypeAlert = 1 << 2 ,     == 0100      1左移2位     2^2 = 4

假如用户勾选推送时显示badge和提示sound，那么types的值就是 == 0001 | 0010 = 0011 == 2^0 + 2 ^1 = 3

消息提示

• 对于简单的、无混音音频，AVAudio ToolBox框架提供了一个简单的C语言风格的音频服务

  • 使用AudioservicesPlaySystemSound函数来播放简单的声音。要遵守以下几个规则：
    1.音频长度小于30秒
    2.格式只能是PCM或者IMA4
    3.文件必须被存储为.caf、.aif、或者.wav格式
    4.简单音频不能从内存播放，而只能是磁盘文件
    除了音频限制外，对播放也没有控制权。音量位当前设备的音量。使用此函数无法循环播放，无法控制音效。但是可以设置播放结束回调函数,在音频播放结束后，做一些操作。

• 震动
  AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);

• 系统提示音
  AudioServicesPlaySystemSound(1007);

• 自定义提示音
  /音效文件路径
  NSString *path = [[NSBundle mainBundle] pathForResource:@"message" ofType:@"wav"];
  //组装并播放音效
  SystemSoundID soundID;
  NSURL *filePath = [NSURL fileURLWithPath:path isDirectory:NO];
  AudioServicesCreateSystemSoundID((__bridge CFURLRef)filePath, &soundID);
  //添加音频结束时的回调 (SoundFinished回调函数)
  AudioServicesAddSystemSoundCompletion(soundID, NULL, NULL, SoundFinished,sample);
  AudioServicesPlaySystemSound(soundID);
  //声音停止
  AudioServicesDisposeSystemSoundID(soundID);

• 播放结束回调函数
  static void SoundFinished(SystemSoundID soundID,void* sample){
  /*播放全部结束，因此释放所有资源 */
  AudioServicesDisposeSystemSoundID(sample);
  CFRelease(sample);
  CFRunLoopStop(CFRunLoopGetCurrent());
  }