播放系统声音SystemSoundID mysound;NSString *sndpath = [[NSBundle mainBundle] pathForResource:@"basicsound" ofType:@"wav"];CFURLRef baseURL = (CFURLRef)[NSURL fileURLWithPath:sndpath];// Identify it as not a UI SoundAudioServicesCreateSystemSoundID(baseURL, &mysound);AudioServicesPropertyID flag = 0; // 0 means always playAudioServicesSetProperty(kAudioServicesPropertyIsUISound, sizeof(SystemSoundID), &mysound, sizeof(AudioServicesPropertyID), &flag);AudioServicesPlaySystemSound(mysound);调节声音大小#importMPVolumeSettingsAlertShow();
smart label
dataDetectorTypes属性
UIDataDetectorTypes——> UIDataDetectorTypeAll 可以根据网址直接访问网址，根据电话号码，直接拨打电话
