bugfreier zwischenstand. buttons um activities zu wechseln, add playlist button…

app/src/main/java/com/soundapp/alisajung/ambientsounds/PlaylistEditor.java

@@ -27,7 +27,6 @@ public class PlaylistEditor extends AppCompatActivity implements AdapterView.OnI
     private static String LOGTAG = "Media Importer";
     private ListView mediaListView;
     private Context context;
-    private ArrayList arrayListTitles;
     private ArrayList<Long> arrayListIds;
     private ArrayAdapter arrayAdapater;
 
@@ -38,22 +37,17 @@ public class PlaylistEditor extends AppCompatActivity implements AdapterView.OnI
         setContentView(R.layout.activity_playlist_editor);
 
         mediaListView = (ListView) findViewById(R.id.medialist1);
-        ContentResolver cr = getContentResolver();
 
         Intent intent = getIntent();
 
         int message = intent.getIntExtra(ManagePlaylistsActivity.EDIT_MODE,-1);
-        Log.d("Hilfe", "Test");
-        Log.d("Hilfe", "Message: " + message);
         if (message == ManagePlaylistsActivity.PLAYLIST_ADD){
-            Log.d("Hilfe", "bla");
 
             arrayListIds = new ArrayList<Long>();
-            Log.d("Hilfe", "bla4");
             mediaListView.setOnItemClickListener(this);
             Log.d("Hilfe", "bla5");
-            //loadMedia();
-            //Log.d("Hilfe", "bla3");
+            loadMedia();
+            Log.d("Hilfe", "bla3");
 
         }
         else if (message == ManagePlaylistsActivity.PLAYLIST_EDIT){
@@ -65,8 +59,11 @@ public class PlaylistEditor extends AppCompatActivity implements AdapterView.OnI
     }
 
     private void loadMedia() {
+        Log.d("Hallo", "Start load media");
         Uri uri = android.provider.MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
-        Cursor cursor = contentResolver.query(uri, null, null, null, null);
+        Log.d("Hallo", "osigh");
+        Cursor cursor = getContentResolver().query(uri, null, null, null, null);
+        Log.d("Hallo nochmal", "lll");
         long lastid = 0;
 
 
@@ -79,13 +76,14 @@ public class PlaylistEditor extends AppCompatActivity implements AdapterView.OnI
         } else {
             Log.d(LOGTAG, "Stuff.");
 
-            arrayListTitles = new ArrayList();
-            arrayAdapater = new ArrayAdapter(context, android.R.layout.simple_list_item_1, arrayListTitles);
+            ArrayList arrayListTitles = new ArrayList();
+            Log.d(LOGTAG, "Create adapter");
+            arrayAdapater = new ArrayAdapter(getApplicationContext(), android.R.layout.simple_list_item_1, arrayListTitles);
+            Log.d(LOGTAG, "Set adapter");
             mediaListView.setAdapter(arrayAdapater);
+            Log.d(LOGTAG, "Do cursor stuff");
             int titleColumn = cursor.getColumnIndex(android.provider.MediaStore.Audio.Media.TITLE);
             int idColumn = cursor.getColumnIndex(android.provider.MediaStore.Audio.Media._ID);
-            arrayListIds.clear();
-            arrayListTitles.clear();
             do {
                 long thisId = cursor.getLong(idColumn);
                 String thisTitle = cursor.getString(titleColumn);
@@ -110,7 +108,7 @@ public class PlaylistEditor extends AppCompatActivity implements AdapterView.OnI
         MediaPlayer mMediaPlayer = new MediaPlayer();
         mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
         try {
-            mMediaPlayer.setDataSource(context, contentUri);
+            mMediaPlayer.setDataSource(getApplicationContext(), contentUri);
         } catch (IOException e) {
             Log.d(LOGTAG, "Fail. mist.");
             e.printStackTrace();
@@ -125,6 +123,7 @@ public class PlaylistEditor extends AppCompatActivity implements AdapterView.OnI
 
     @Override
     public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+        Log.d(LOGTAG, "Item clicked");
         playSongWithID(arrayListIds.get(position));
     }
 }