有沒有辦法檢查靜音狀態？

Question

可能重複：
How to programatically sense the iPhone mute switch?

我想我的應用程序請檢查是否靜音開關切換或關閉！但是有一個問題...是否有一個功能呢？

在此先感謝

Answer 1

How to programmatically sense the iPhone mute switch?

我相信這是你在找什麼。

發佈代碼在這裏：

// "Ambient" makes it respect the mute switch 
// Must call this once to init session 
if (!gAudioSessionInited) 
{ 
    AudioSessionInterruptionListener inInterruptionListener = NULL; 
    OSStatus error; 
    if ((error = AudioSessionInitialize (NULL, NULL, inInterruptionListener, NULL))) 
    { 
     NSLog(@"*** Error *** error in AudioSessionInitialize: %d.", error); 
    } 
    else 
    { 
     gAudioSessionInited = YES; 
    } 
} 

SInt32 ambient = kAudioSessionCategory_AmbientSound; 
if (AudioSessionSetProperty (kAudioSessionProperty_AudioCategory, sizeof (ambient), &ambient)) 
{ 
     NSLog(@"*** Error *** could not set Session property to ambient."); 
}