display some details at the files and directories

app/src/main/java/com/simplemobiletools/filemanager/Utils.java

@@ -34,12 +34,13 @@ public class Utils {
         return ContextCompat.checkSelfPermission(cxt, Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED;
     }
 
-    public static Bitmap getColoredIcon(Resources res, int newColor, int id) {
+    public static Bitmap getColoredIcon(Resources res, int colorId, int id) {
+        final int color = res.getColor(colorId);
         final BitmapFactory.Options options = new BitmapFactory.Options();
         options.inMutable = true;
         final Bitmap bmp = BitmapFactory.decodeResource(res, id, options);
         final Paint paint = new Paint();
-        final ColorFilter filter = new PorterDuffColorFilter(newColor, PorterDuff.Mode.SRC_IN);
+        final ColorFilter filter = new PorterDuffColorFilter(color, PorterDuff.Mode.SRC_IN);
         paint.setColorFilter(filter);
         final Canvas canvas = new Canvas(bmp);
         canvas.drawBitmap(bmp, 0, 0, paint);

app/src/main/java/com/simplemobiletools/filemanager/adapters/ItemsAdapter.java

@@ -14,6 +14,7 @@ import com.simplemobiletools.filemanager.R;
 import com.simplemobiletools.filemanager.Utils;
 import com.simplemobiletools.filemanager.models.FileDirItem;
 
+import java.text.DecimalFormat;
 import java.util.List;
 
 import butterknife.BindView;
@@ -24,14 +25,15 @@ public class ItemsAdapter extends BaseAdapter {
     private final LayoutInflater mInflater;
     private final Bitmap mFileBmp;
     private final Bitmap mDirectoryBmp;
+    private final Resources mRes;
 
     public ItemsAdapter(Context context, List<FileDirItem> items) {
         mItems = items;
         mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
 
-        final Resources res = context.getResources();
+        mRes = context.getResources();
-        mDirectoryBmp = Utils.getColoredIcon(res, res.getColor(R.color.lightGrey), R.mipmap.directory);
+        mDirectoryBmp = Utils.getColoredIcon(mRes, R.color.lightGrey, R.mipmap.directory);
-        mFileBmp = Utils.getColoredIcon(res, res.getColor(R.color.lightGrey), R.mipmap.file);
+        mFileBmp = Utils.getColoredIcon(mRes, R.color.lightGrey, R.mipmap.file);
     }
 
     @Override
@@ -50,13 +52,29 @@ public class ItemsAdapter extends BaseAdapter {
 
         if (item.getIsDirectory()) {
             viewHolder.icon.setImageBitmap(mDirectoryBmp);
+            viewHolder.details.setText(getChildrenCnt(item));
         } else {
             viewHolder.icon.setImageBitmap(mFileBmp);
+            viewHolder.details.setText(getFormattedSize(item));
         }
 
         return convertView;
     }
 
+    private String getChildrenCnt(FileDirItem item) {
+        final int children = item.getChildren();
+        return mRes.getQuantityString(R.plurals.items, children, children);
+    }
+
+    private String getFormattedSize(FileDirItem item) {
+        final long size = item.getSize();
+        if (size <= 0)
+            return "0";
+        final String[] units = {"B", "kB", "MB", "GB", "TB"};
+        final int digitGroups = (int) (Math.log10(size) / Math.log10(1024));
+        return new DecimalFormat("#,##0.#").format(size / Math.pow(1024, digitGroups)) + " " + units[digitGroups];
+    }
+
     @Override
     public int getCount() {
         return mItems.size();
@@ -75,6 +93,7 @@ public class ItemsAdapter extends BaseAdapter {
     static class ViewHolder {
         @BindView(R.id.item_name) TextView name;
         @BindView(R.id.item_icon) ImageView icon;
+        @BindView(R.id.item_details) TextView details;
 
         public ViewHolder(View view) {
             ButterKnife.bind(this, view);

app/src/main/java/com/simplemobiletools/filemanager/fragments/ItemsFragment.java

@@ -126,11 +126,18 @@ public class ItemsFragment extends android.support.v4.app.Fragment
             if (mToBeDeleted.contains(curPath))
                 continue;
 
-            items.add(new FileDirItem(curPath, curName, file.isDirectory()));
+            int children = getChildren(file);
+            long size = file.length();
+
+            items.add(new FileDirItem(curPath, curName, file.isDirectory(), children, size));
         }
         return items;
     }
 
+    private int getChildren(File file) {
+        return (file.isDirectory()) ? file.listFiles().length : 0;
+    }
+
     @Override
     public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
         final FileDirItem item = mItems.get(position);

app/src/main/java/com/simplemobiletools/filemanager/models/FileDirItem.java

@@ -4,11 +4,15 @@ public class FileDirItem implements Comparable {
     private final String mPath;
     private final String mName;
     private final boolean mIsDirectory;
+    private final int mChildren;
+    private final long mSize;
 
-    public FileDirItem(String path, String name, boolean isDirectory) {
+    public FileDirItem(String path, String name, boolean isDirectory, int children, long size) {
         mPath = path;
         mName = name;
         mIsDirectory = isDirectory;
+        mChildren = children;
+        mSize = size;
     }
 
     public String getPath() {
@@ -23,6 +27,14 @@ public class FileDirItem implements Comparable {
         return mIsDirectory;
     }
 
+    public int getChildren() {
+        return mChildren;
+    }
+
+    public long getSize() {
+        return mSize;
+    }
+
     @Override
     public int compareTo(Object object) {
         final FileDirItem item = (FileDirItem) object;
@@ -40,6 +52,8 @@ public class FileDirItem implements Comparable {
         return "FileDirItem{" +
                 "name=" + getName() +
                 ", isDirectory=" + getIsDirectory() +
-                ", path=" + getPath() + "}";
+                ", path=" + getPath() +
+                ", children=" + getChildren() +
+                ", size=" + getSize() +"}";
     }
 }

app/src/main/res/layout/list_item.xml

@@ -18,12 +18,22 @@
     <TextView
         android:id="@+id/item_name"
         android:layout_width="match_parent"
-        android:layout_height="match_parent"
+        android:layout_height="wrap_content"
-        android:layout_alignBottom="@+id/item_icon"
         android:layout_alignTop="@+id/item_icon"
         android:layout_toRightOf="@+id/item_icon"
-        android:gravity="center_vertical"
+        android:paddingLeft="@dimen/small_margin"
-        android:paddingLeft="@dimen/medium_margin"
+        android:paddingTop="@dimen/small_margin"
         android:text="Directory"/>
 
+    <TextView
+        android:id="@+id/item_details"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/item_name"
+        android:layout_toRightOf="@+id/item_icon"
+        android:paddingLeft="@dimen/small_margin"
+        android:text="1 KB"
+        android:textColor="@color/details_grey"
+        android:textSize="@dimen/details_text_size"/>
+
 </RelativeLayout>

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

@@ -7,4 +7,5 @@
     <color name="lightGrey">#33000000</color>
     <color name="pressed_item_foreground">#08000000</color>
     <color name="activated_item_foreground">#11000000</color>
+    <color name="details_grey">#33000000</color>
 </resources>

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

@@ -1,10 +1,12 @@
 <resources>
     <dimen name="activity_margin">16dp</dimen>
+    <dimen name="small_margin">6dp</dimen>
     <dimen name="medium_margin">10dp</dimen>
     <dimen name="icon_size">48dp</dimen>
     <dimen name="social_padding">8dp</dimen>
     <dimen name="social_logo">40dp</dimen>
     <dimen name="settings_padding">8dp</dimen>
 
+    <dimen name="details_text_size">12sp</dimen>
     <dimen name="normal_text_size">14sp</dimen>
 </resources>

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

@@ -19,6 +19,11 @@
         <item quantity="other">%1$d items deleted</item>
     </plurals>
 
+    <plurals name="items">
+        <item quantity="one">1 item</item>
+        <item quantity="other">%1$d items</item>
+    </plurals>
+
     <!-- About -->
     <string name="about">About</string>
     <string name="website">More simple apps and source code at:\nhttp://simplemobiletools.com</string>