Time stretching, AndroidX, update gradle

ios/Classes/JustAudioPlugin.m

@@ -3,32 +3,33 @@
 #import "AudioPlayer.h"
 
 @implementation JustAudioPlugin {
-  NSObject<FlutterPluginRegistrar>* _registrar;
+	NSObject<FlutterPluginRegistrar>* _registrar;
 }
 
 + (void)registerWithRegistrar:(NSObject<FlutterPluginRegistrar>*)registrar {
-  FlutterMethodChannel* channel = [FlutterMethodChannel
-    methodChannelWithName:@"com.ryanheise.just_audio.methods"
-          binaryMessenger:[registrar messenger]];
-  JustAudioPlugin* instance = [[JustAudioPlugin alloc] initWithRegistrar:registrar];
-  [registrar addMethodCallDelegate:instance channel:channel];
+	FlutterMethodChannel* channel = [FlutterMethodChannel
+		methodChannelWithName:@"com.ryanheise.just_audio.methods"
+					binaryMessenger:[registrar messenger]];
+	JustAudioPlugin* instance = [[JustAudioPlugin alloc] initWithRegistrar:registrar];
+	[registrar addMethodCallDelegate:instance channel:channel];
 }
 
 - (instancetype)initWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar {
-  self = [super init];
-  NSAssert(self, @"super init cannot be nil");
-  _registrar = registrar;
-  return self;
+	self = [super init];
+	NSAssert(self, @"super init cannot be nil");
+	_registrar = registrar;
+	return self;
 }
 
 - (void)handleMethodCall:(FlutterMethodCall*)call result:(FlutterResult)result {
-  if ([@"init" isEqualToString:call.method]) {
-    NSString* playerId = call.arguments;
-    AudioPlayer* player = [[AudioPlayer alloc] initWithRegistrar:_registrar playerId:playerId];
-    result(nil);
-  } else {
-    result(FlutterMethodNotImplemented);
-  }
+	if ([@"init" isEqualToString:call.method]) {
+		NSArray* args = (NSArray*)call.arguments;
+		NSString* playerId = args[0];
+		AudioPlayer* player = [[AudioPlayer alloc] initWithRegistrar:_registrar playerId:playerId];
+		result(nil);
+	} else {
+		result(FlutterMethodNotImplemented);
+	}
 }
 
 @end