Fix to not play music in silent mode on iOS and automatically playing when opening app

darwin/Classes/Music.swift

@@ -514,17 +514,6 @@ public class Player : NSObject, AVAudioPlayerDelegate {
             print("displayNotification " + displayNotification.description)
             print("url: " + url.absoluteString)
 
-            /* set session category and mode with options */
-            if #available(iOS 10.0, *) {
-                //try AVAudioSession.sharedInstance().setCategory(category, mode: mode, options: [.mixWithOthers])
-                try AVAudioSession.sharedInstance().setCategory(category, mode: .default, options: [])
-                try AVAudioSession.sharedInstance().setActive(true)
-            } else {
-
-                try AVAudioSession.sharedInstance().setCategory(category)
-                try AVAudioSession.sharedInstance().setActive(true)
-
-            }
             #endif
 
             var item : SlowMoPlayerItem
@@ -567,7 +556,13 @@ public class Player : NSObject, AVAudioPlayerDelegate {
             self.setBuffering(true)
             self.isLiveStream = false
             observerStatus.append( item.observe(\.status, changeHandler: { [weak self] (item, value) in
-
+                //don't execute readyToPlay again when coming back from foreground to avoid re-playing of audio due to line #603
+                if(self?.currentStatus != .readyToPlay) {
+                    self?.currentStatus = item.status
+                } else {
+                    return
+                }
+
                 switch item.status {
                 case .unknown:
                     debugPrint("status: unknown")
@@ -590,6 +585,29 @@ public class Player : NSObject, AVAudioPlayerDelegate {
                         #endif
                     }
 
+                    // Additional code to enable respectSilentMode from here.
+                    #if os(iOS)
+                    do{
+                        if #available(iOS 10.0, *) {
+                            try AVAudioSession.sharedInstance().setCategory(category, mode: .default, options: [])
+                            try AVAudioSession.sharedInstance().setActive(true)
+                        } else {
+                            try AVAudioSession.sharedInstance().setCategory(category)
+                            try AVAudioSession.sharedInstance().setActive(true)
+                        }
+                    } catch let errorSetCategory {
+                        result(FlutterError(
+                            code: "PLAY_ERROR",
+                            message: "Cannot play "+assetPath,
+                            details: errorSetCategory.localizedDescription)
+                        )
+                        self?.log(errorSetCategory.localizedDescription)
+                        print(errorSetCategory.localizedDescription)
+                        return;
+                    }
+                    #endif
+                    // To here.
+
                     if(autoStart == true){
                         self?.play()
                     }
@@ -805,6 +823,7 @@ public class Player : NSObject, AVAudioPlayerDelegate {
     }
 
     func stop(){
+        self.currentStatus = nil
         self.player?.pause()
         self.player?.rate = 0.0