display the current directory/photo name at the actionbar

app/src/main/java/com/simplemobiletools/gallery/Helpers.java

@@ -0,0 +1,7 @@
+package com.simplemobiletools.gallery;
+
+public class Helpers {
+    public static String getFilename(final String path) {
+        return path.substring(path.lastIndexOf("/") + 1);
+    }
+}

app/src/main/java/com/simplemobiletools/gallery/activities/MainActivity.java

@@ -11,17 +11,18 @@ import android.widget.AdapterView;
 import android.widget.AdapterView.OnItemClickListener;
 import android.widget.GridView;
 
+import com.simplemobiletools.gallery.Constants;
+import com.simplemobiletools.gallery.Directory;
+import com.simplemobiletools.gallery.Helpers;
+import com.simplemobiletools.gallery.R;
+import com.simplemobiletools.gallery.adapters.DirectoryAdapter;
+
 import java.io.File;
 import java.util.ArrayList;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 
-import com.simplemobiletools.gallery.Constants;
-import com.simplemobiletools.gallery.Directory;
-import com.simplemobiletools.gallery.R;
-import com.simplemobiletools.gallery.adapters.DirectoryAdapter;
-
 public class MainActivity extends AppCompatActivity implements OnItemClickListener {
     private List<Directory> dirs;
 
@@ -49,14 +50,14 @@ public class MainActivity extends AppCompatActivity implements OnItemClickListen
             do {
                 final String path = cursor.getString(pathIndex);
                 final File file = new File(path);
-                final String fileDir = file.getParent().toLowerCase();
+                final String fileDir = file.getParent();
 
                 if (directories.containsKey(fileDir)) {
                     final Directory directory = directories.get(fileDir);
                     final int newImageCnt = directory.getPhotoCnt() + 1;
                     directory.setPhotoCnt(newImageCnt);
                 } else {
-                    final String dirName = fileDir.substring(fileDir.lastIndexOf("/") + 1);
+                    final String dirName = Helpers.getFilename(fileDir);
                     directories.put(fileDir, new Directory(fileDir, path, dirName, 1));
                 }
             } while (cursor.moveToNext());

app/src/main/java/com/simplemobiletools/gallery/activities/PhotosActivity.java

@@ -10,14 +10,15 @@ import android.view.View;
 import android.widget.AdapterView;
 import android.widget.GridView;
 
+import com.simplemobiletools.gallery.Constants;
+import com.simplemobiletools.gallery.Helpers;
+import com.simplemobiletools.gallery.R;
+import com.simplemobiletools.gallery.adapters.PhotosAdapter;
+
 import java.util.ArrayList;
 import java.util.List;
 import java.util.regex.Pattern;
 
-import com.simplemobiletools.gallery.Constants;
-import com.simplemobiletools.gallery.R;
-import com.simplemobiletools.gallery.adapters.PhotosAdapter;
-
 public class PhotosActivity extends AppCompatActivity implements AdapterView.OnItemClickListener {
     private List<String> photos;
 
@@ -27,14 +28,17 @@ public class PhotosActivity extends AppCompatActivity implements AdapterView.OnI
         setContentView(R.layout.activity_photos);
 
         photos = new ArrayList<>();
+        final String path = getIntent().getStringExtra(Constants.DIRECTORY);
         final GridView gridView = (GridView) findViewById(R.id.photos_grid);
-        final PhotosAdapter adapter = new PhotosAdapter(this, getPhotos());
+        final PhotosAdapter adapter = new PhotosAdapter(this, getPhotos(path));
         gridView.setAdapter(adapter);
         gridView.setOnItemClickListener(this);
+
+        final String dirName = Helpers.getFilename(path);
+        setTitle(dirName);
     }
 
-    private List<String> getPhotos() {
+    private List<String> getPhotos(final String path) {
-        final String path = getIntent().getStringExtra(Constants.DIRECTORY);
         final Uri uri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
         final String where = MediaStore.Images.Media.DATA + " like ? ";
         final String[] args = new String[]{path + "%"};
@@ -47,7 +51,7 @@ public class PhotosActivity extends AppCompatActivity implements AdapterView.OnI
             final int pathIndex = cursor.getColumnIndex(MediaStore.Images.Media.DATA);
             do {
                 final String curPath = cursor.getString(pathIndex);
-                if (curPath.toLowerCase().matches(pattern)) {
+                if (curPath.matches(pattern)) {
                     photos.add(cursor.getString(pathIndex));
                 }
             } while (cursor.moveToNext());

app/src/main/java/com/simplemobiletools/gallery/activities/ViewPagerActivity.java

@@ -5,6 +5,7 @@ import android.database.Cursor;
 import android.net.Uri;
 import android.os.Bundle;
 import android.provider.MediaStore;
+import android.support.v4.view.ViewPager;
 import android.support.v7.app.ActionBar;
 import android.support.v7.app.AppCompatActivity;
 import android.view.Menu;
@@ -12,6 +13,7 @@ import android.view.MenuItem;
 import android.view.View;
 
 import com.simplemobiletools.gallery.Constants;
+import com.simplemobiletools.gallery.Helpers;
 import com.simplemobiletools.gallery.MyViewPager;
 import com.simplemobiletools.gallery.R;
 import com.simplemobiletools.gallery.adapters.MyPagerAdapter;
@@ -21,7 +23,7 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.regex.Pattern;
 
-public class ViewPagerActivity extends AppCompatActivity {
+public class ViewPagerActivity extends AppCompatActivity implements ViewPager.OnPageChangeListener {
     private int pos;
     private boolean isFullScreen;
     private ActionBar actionbar;
@@ -38,12 +40,14 @@ public class ViewPagerActivity extends AppCompatActivity {
         actionbar = getSupportActionBar();
         hideSystemUI();
 
+        final String path = getIntent().getStringExtra(Constants.PHOTO);
         final MyPagerAdapter adapter = new MyPagerAdapter(getSupportFragmentManager());
         pager = (MyViewPager) findViewById(R.id.view_pager);
-        photos = getPhotos();
+        photos = getPhotos(path);
         adapter.setPaths(photos);
         pager.setAdapter(adapter);
         pager.setCurrentItem(pos);
+        pager.addOnPageChangeListener(this);
 
         getWindow().getDecorView().setOnSystemUiVisibilityChangeListener(new View.OnSystemUiVisibilityChangeListener() {
             @Override
@@ -53,6 +57,8 @@ public class ViewPagerActivity extends AppCompatActivity {
                 }
             }
         });
+
+        updateActionbarTitle();
     }
 
     @Override
@@ -83,10 +89,9 @@ public class ViewPagerActivity extends AppCompatActivity {
         startActivity(Intent.createChooser(sendIntent, shareTitle));
     }
 
-    private List<String> getPhotos() {
+    private List<String> getPhotos(final String path) {
         final List<String> photos = new ArrayList<>();
-        final String path = getIntent().getStringExtra(Constants.PHOTO);
+        final String fileDir = new File(path).getParent();
-        final String fileDir = new File(path).getParent().toLowerCase();
         final Uri uri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
         final String where = MediaStore.Images.Media.DATA + " like ? ";
         final String[] args = new String[]{fileDir + "%"};
@@ -100,7 +105,7 @@ public class ViewPagerActivity extends AppCompatActivity {
             final int pathIndex = cursor.getColumnIndex(MediaStore.Images.Media.DATA);
             do {
                 final String curPath = cursor.getString(pathIndex);
-                if (curPath.toLowerCase().matches(pattern)) {
+                if (curPath.matches(pattern)) {
                     photos.add(curPath);
 
                     if (curPath.equals(path))
@@ -143,4 +148,23 @@ public class ViewPagerActivity extends AppCompatActivity {
                 View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION |
                 View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
     }
+
+    private void updateActionbarTitle() {
+        setTitle(Helpers.getFilename(photos.get(pager.getCurrentItem())));
+    }
+
+    @Override
+    public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
+
+    }
+
+    @Override
+    public void onPageSelected(int position) {
+        updateActionbarTitle();
+    }
+
+    @Override
+    public void onPageScrollStateChanged(int state) {
+
+    }
 }

app/src/main/res/values/styles.xml

@@ -12,7 +12,7 @@
         <item name="android:actionBarStyle">@style/MyFullScreenActionBar</item>
     </style>
 
-    <style name="MyFullScreenActionBar" parent="@android:style/Widget.Holo.ActionBar">
+    <style name="MyFullScreenActionBar" parent="Widget.AppCompat.Light.ActionBar">
         <item name="background">@color/actionbar_grey</item>
         <item name="android:background">@color/actionbar_grey</item>
     </style>