新增Audio.SetActive()

Author: Aaron8052

Plugins/CS/Audio.cs

@@ -10,6 +10,8 @@ public static class Audio
     {
         [DllImport("__Internal")] static extern void Audio_Init(Action audioSessionRouteChangedCallback,
             ULongCallback audioInterruptionCallback);
+        [DllImport("__Internal")] static extern bool Audio_SetActive(bool active);
+        [DllImport("__Internal")] static extern bool Audio_GetAudioInterrupted();
         [DllImport("__Internal")] static extern bool Audio_GetPrefersNoInterruptionsFromSystemAlerts();
         [DllImport("__Internal")] static extern void Audio_SetPrefersNoInterruptionsFromSystemAlerts(bool prefersNoInterruptions);
         [DllImport("__Internal")] static extern float Audio_SystemVolume();
@@ -28,6 +30,16 @@ static void Init()
             inited = true;
         }
 
+        /// <summary>
+        /// 设置AVAudioSession的激活状态
+        /// </summary>
+        /// <param name="active"></param>
+        /// <returns>是否成功抢占音频优先权</returns>
+        public static bool SetActive(bool active)
+        {
+            return Audio_SetActive(active);
+        }
+
 #region AudioInterruption
 
         // https://developer.apple.com/documentation/avfaudio/avaudiosession/setprefersnointerruptionsfromsystemalerts(_:)?language=objc
@@ -49,6 +61,8 @@ public static bool PrefersNoInterruptionsFromSystemAlerts
 
         static Action<AVAudioSessionInterruptionType> audioInterruptionEvent;
 
+        public static bool AudioInterrupted => Audio_GetAudioInterrupted();
+
         /// <summary>
         /// 游戏音频中断与恢复事件
         /// </summary>

Plugins/Native/Headers/Audio.h

@@ -4,6 +4,8 @@
 
 +(void)Init:(Action)audioSessionRouteChangedCallback
     audioInterruptionCallback:(ULongCallback)audioInterruptionCallback;
++(BOOL)SetActive:(BOOL)active;
++(bool)GetAudioInterrupted;
 +(bool)GetPrefersNoInterruptionsFromSystemAlerts;
 +(void)SetPrefersNoInterruptionsFromSystemAlerts:(BOOL)prefersNoInterruptions;
 +(float)SystemVolume;
@@ -23,6 +25,12 @@ extern "C"
         [Audio Init:audioSessionRouteChangedCallback
                     audioInterruptionCallback:audioInterruptionCallback];
     }
+    bool Audio_SetActive(bool active){
+        return [Audio SetActive:active];
+    }
+    bool Audio_GetAudioInterrupted(){
+        return [Audio GetAudioInterrupted];
+    }
     bool Audio_GetPrefersNoInterruptionsFromSystemAlerts(){
         return [Audio GetPrefersNoInterruptionsFromSystemAlerts];
     }

Plugins/Native/Implementations/Audio.mm

@@ -26,7 +26,19 @@ +(void)Init:(Action)audioSessionRouteChangedCallback
     inited = YES;
 }
 
-//static BOOL audioInterrupted;
++(BOOL)SetActive:(BOOL)active
+{
+    auto success = [[AVAudioSession sharedInstance] setActive:active error:nil];
+    if(success)
+        audioInterrupted = false;
+    return success;
+}
+
+static BOOL audioInterrupted;
++(bool)GetAudioInterrupted
+{
+    return audioInterrupted;
+}
 
 +(bool)GetPrefersNoInterruptionsFromSystemAlerts
 {
@@ -45,9 +57,8 @@ +(void)OnAudioInterruptionEvent:(NSNotification *)notification
 {
     auto userInfo = notification.userInfo;
     auto typeValue = [userInfo[AVAudioSessionInterruptionTypeKey] unsignedIntegerValue];
-    //auto type = (AVAudioSessionInterruptionType)typeValue;
-    
-    //audioInterrupted = type == AVAudioSessionInterruptionTypeBegan;
+    auto type = (AVAudioSessionInterruptionType)typeValue;
+    audioInterrupted = type == AVAudioSessionInterruptionTypeBegan;
 
     /*switch (type) {
         case AVAudioSessionInterruptionTypeBegan: