diff --git a/app/src/main/java/com/github/axet/audiorecorder/activities/MainActivity.java b/app/src/main/java/com/github/axet/audiorecorder/activities/MainActivity.java
index 2d52f5c..b21c602 100644
--- a/app/src/main/java/com/github/axet/audiorecorder/activities/MainActivity.java
+++ b/app/src/main/java/com/github/axet/audiorecorder/activities/MainActivity.java
@@ -36,7 +36,7 @@ import android.widget.TextView;
 import android.widget.Toast;
 
 import com.github.axet.androidlibrary.animations.RemoveItemAnimation;
-import com.github.axet.androidlibrary.app.LibraryApplication;
+import com.github.axet.androidlibrary.app.MainLibrary;
 import com.github.axet.androidlibrary.widgets.OpenFileDialog;
 import com.github.axet.androidlibrary.widgets.PopupShareActionProvider;
 import com.github.axet.audiorecorder.R;
@@ -180,10 +180,10 @@ public class MainActivity extends AppCompatActivity implements AbsListView.OnScr
             time.setText(s.format(new Date(f.lastModified())));
 
             TextView dur = (TextView) convertView.findViewById(R.id.recording_duration);
-            dur.setText(LibraryApplication.formatDuration(getContext(), durations.get(f)));
+            dur.setText(MainLibrary.formatDuration(getContext(), durations.get(f)));
 
             TextView size = (TextView) convertView.findViewById(R.id.recording_size);
-            size.setText(LibraryApplication.formatSize(getContext(), f.length()));
+            size.setText(MainLibrary.formatSize(getContext(), f.length()));
 
             final View playerBase = convertView.findViewById(R.id.recording_player);
             playerBase.setOnClickListener(new View.OnClickListener() {
@@ -448,11 +448,11 @@ public class MainActivity extends AppCompatActivity implements AbsListView.OnScr
                 }
             });
 
-            start.setText(LibraryApplication.formatDuration(getContext(), c));
+            start.setText(MainLibrary.formatDuration(getContext(), c));
             bar.setMax(d);
             bar.setKeyProgressIncrement(1);
             bar.setProgress(c);
-            end.setText("-" + LibraryApplication.formatDuration(getContext(), d - c));
+            end.setText("-" + MainLibrary.formatDuration(getContext(), d - c));
 
             return playing;
         }
diff --git a/app/src/main/java/com/github/axet/audiorecorder/activities/RecordingActivity.java b/app/src/main/java/com/github/axet/audiorecorder/activities/RecordingActivity.java
index cadd0a3..34abcf3 100644
--- a/app/src/main/java/com/github/axet/audiorecorder/activities/RecordingActivity.java
+++ b/app/src/main/java/com/github/axet/audiorecorder/activities/RecordingActivity.java
@@ -35,7 +35,7 @@ import android.widget.TextView;
 import android.widget.Toast;
 
 import com.github.axet.androidlibrary.animations.MarginBottomAnimation;
-import com.github.axet.androidlibrary.app.LibraryApplication;
+import com.github.axet.androidlibrary.app.MainLibrary;
 import com.github.axet.audiorecorder.R;
 import com.github.axet.audiorecorder.app.MainApplication;
 import com.github.axet.audiorecorder.app.RawSamples;
@@ -717,7 +717,7 @@ public class RecordingActivity extends AppCompatActivity {
 
     void updateSamples(long samplesTime) {
         long ms = samplesTime / sampleRate * 1000;
-        time.setText(LibraryApplication.formatDuration(this, ms));
+        time.setText(MainLibrary.formatDuration(this, ms));
     }
 
     @Override
diff --git a/app/src/main/java/com/github/axet/audiorecorder/app/MainApplication.java b/app/src/main/java/com/github/axet/audiorecorder/app/MainApplication.java
index 0a04cad..8d6fdbe 100644
--- a/app/src/main/java/com/github/axet/audiorecorder/app/MainApplication.java
+++ b/app/src/main/java/com/github/axet/audiorecorder/app/MainApplication.java
@@ -6,7 +6,7 @@ import android.content.SharedPreferences;
 import android.media.AudioFormat;
 import android.preference.PreferenceManager;
 
-import com.github.axet.androidlibrary.app.LibraryApplication;
+import com.github.axet.androidlibrary.app.MainLibrary;
 import com.github.axet.androidlibrary.widgets.ThemeUtils;
 import com.github.axet.audiorecorder.R;
 
@@ -70,7 +70,7 @@ public class MainApplication extends Application {
             str = getResources().getQuantityString(R.plurals.seconds, diffSeconds, diffSeconds);
         }
 
-        return getString(R.string.title_header, LibraryApplication.formatSize(this, free), str);
+        return getString(R.string.title_header, MainLibrary.formatSize(this, free), str);
     }
 
     public static int getChannels(Context context) {