Runnable test implementation

app/src/main/java/com/example/greenwatch/MainActivity.java

                 try {
                     mediaRecorder.prepare();
                     mediaRecorder.start();
-                    runOnUiThread(new Runnable() {
+                    /*runOnUiThread(new Runnable() {
                         @Override
                         public void run() {
                             Toast.makeText(MainActivity.this, "Videoaufzeichnung gestartet", Toast.LENGTH_SHORT).show();
                         }
-                    });
+                    });*/
                 } catch (IOException e) {
                     e.printStackTrace();
                 }
         });
     }
 
-    private void AudioThread(){
+    public class AudioTask implements Runnable {
+
+        @Override
+        public void run() {
+            audioRecorder = new MediaRecorder();
+            audioRecorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
+            audioRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
+            audioRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
+            audioRecorder.setOutputFile(audioPath);
+
+            try {
+                audioRecorder.prepare();
+                audioRecorder.start();
+                runOnUiThread(new Runnable() {
+                    @Override
+                    public void run() {
+                        Toast.makeText(MainActivity.this, "Audioaufzeichnung gestartet", Toast.LENGTH_SHORT).show();
+                    }
+                });
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    /*private void AudioThread(){
         audioThread = new Thread(new Runnable() {
             @Override
             public void run() {
                 }
             }
         });
-    }
+    }*/
 
     private void startRecording() {
         cache(); //Speicherort und -namen für Audio- und Video-Datei
 
         VideoThread(); //Videoaufzeichnungs-Thread anlegen
-        AudioThread(); //Audioaufzeichnungs-Thread anlegen
+        Runnable audiotask = new AudioTask();
+        audioThread = new Thread(audiotask);
+        //AudioThread(); //Audioaufzeichnungs-Thread anlegen
 
         //Threads starten
         videoThread.start();