Trying to prevent deep sleeping during big exports. (export would totally stall, and then resume when device was woken up). Not really what was wanted. Testing this out....

playmusicexporter/src/main/AndroidManifest.xml

@@ -25,6 +25,7 @@
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
+    <uses-permission android:name="android.permission.WAKE_LOCK"/>
 
     <application
         android:allowBackup="true"

playmusicexporter/src/main/java/re/jcg/playmusicexporter/fragments/MusicTrackListFragment.java

@@ -22,8 +22,10 @@
 
 package re.jcg.playmusicexporter.fragments;
 
+import android.content.Context;
 import android.net.Uri;
 import android.os.Bundle;
+import android.os.PowerManager;
 import android.support.design.widget.FloatingActionButton;
 import android.support.v4.app.Fragment;
 import android.text.TextUtils;
@@ -63,6 +65,7 @@ public class MusicTrackListFragment extends Fragment {
      */
     public static final String ARG_MUSIC_TRACK_LIST_ID = "music_track_list_id";
     public static final String ARG_MUSIC_TRACK_LIST_TYPE = "music_track_list_type";
+    private PowerManager.WakeLock m_CPULock;
 
     /**
      * The track list
@@ -138,6 +141,8 @@ public class MusicTrackListFragment extends Fragment {
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
+        PowerManager powerManager = (PowerManager)this.getContext().getSystemService(Context.POWER_SERVICE);
+        m_CPULock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "ExportAllService");
         if (getArguments().containsKey(ARG_MUSIC_TRACK_LIST_ID)
                 && getArguments().containsKey(ARG_MUSIC_TRACK_LIST_TYPE)) {
 
@@ -213,12 +218,19 @@ public class MusicTrackListFragment extends Fragment {
             mFloatingButtonExport = (FloatingActionButton) rootView.findViewById(R.id.floating_button_export);
             mFloatingButtonExport.setOnClickListener(new View.OnClickListener() {
                 @Override
-                public void onClick(View v) {
+                public void onClick(View v)
+                {
+                    m_CPULock.acquire();
                     // Export all selected tracks
                     for (SelectedTrack selectedTrack : SelectedTrackList.getInstance().getSelectedItems()) {
                         selectedTrack.export(getActivity());
                     }
 
+                    if ( m_CPULock.isHeld())
+                    {
+                        m_CPULock.release();
+                    }
+
                     // Clear the selection
                     SelectedTrackList.getInstance().clear(true);
                 }

playmusicexporter/src/main/java/re/jcg/playmusicexporter/services/ExportAllService.java

@@ -4,6 +4,7 @@ import android.app.IntentService;
 import android.content.Context;
 import android.content.Intent;
 import android.net.Uri;
+import android.os.PowerManager;
 import android.support.v4.provider.DocumentFile;
 import android.util.Log;
 
@@ -24,6 +25,7 @@ public class ExportAllService extends IntentService {
     public static final String TAG = "AutoGPME_ExportService";
     public static final String ACTION_EXPORT = "re.jcg.playmusicexporter.action.EXPORT";
     public static final String ACTION_SET_EXPORT_JOB = "re.jcg.playmusicexporter.action.SET_EXPORT_JOB";
+    private PowerManager.WakeLock m_CPULock;
 
     public static void startExport(Context pContext) {
         Intent lIntent = new Intent(pContext, ExportAllService.class);
@@ -32,8 +34,11 @@ public class ExportAllService extends IntentService {
         Log.i(TAG, "Intent sent!");
     }
 
-    public ExportAllService() {
+    public ExportAllService()
+    {
         super("AutoGPME-ExportService");
+        PowerManager powerManager = (PowerManager) getSystemService(POWER_SERVICE);
+        m_CPULock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "ExportAllService");
     }
 
     protected void onHandleIntent(Intent intent) {
@@ -62,6 +67,7 @@ public class ExportAllService extends IntentService {
         Log.i(TAG, lUri.toString());
         AlbumDataSource lAlbumDataSource = new AlbumDataSource(lPlayMusicManager);
         lAlbumDataSource.setOfflineOnly(true);
+        m_CPULock.acquire();
         List<Album> lAlba = lAlbumDataSource.getAll();
         for (Album lAlbum : lAlba) {
             for (MusicTrack lTrack : lAlbum.getMusicTrackList()) {
@@ -84,9 +90,20 @@ public class ExportAllService extends IntentService {
                             Log.i(TAG, "Automatic export failed, because the URI is invalid.");
                         } else throw e;
                     }
+                    finally
+                    {
+                        if ( m_CPULock.isHeld())
+                        {
+                            m_CPULock.release();
+                        }
+                    }
                 }
             }
         }
+        if ( m_CPULock.isHeld())
+        {
+            m_CPULock.release();
+        }
     }
 
     private String getStringForTrack(MusicTrack pTrack) {