group change data and size together and calculate decimals based on total size see comment in PR #1090

res/layout/list_item.xml

@@ -30,12 +30,12 @@
         android:orientation="horizontal">
 
         <FrameLayout
-            android:layout_width="64dp"
+            android:layout_width="60dp"
             android:layout_height="72dp"
             android:paddingLeft="@dimen/standard_padding"
             android:paddingBottom="@dimen/standard_padding"
             android:paddingTop="@dimen/standard_padding"
-            android:paddingRight="8dp"
+            android:paddingRight="4dp"
             android:focusable="false"
             android:focusableInTouchMode="false">
 
@@ -89,14 +89,22 @@
                 android:layout_height="wrap_content"
                 android:layout_marginLeft="0dp"
                 android:layout_marginRight="4dp"
-                android:weightSum="1">
+                android:orientation="horizontal">
 
                 <TextView
                     android:id="@+id/last_mod"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:text="TextView"
-                    android:layout_weight=".5"
+                    android:textColor="@color/list_item_lastmod_and_filesize_text"
+                    android:textSize="@dimen/two_line_secondary_text_size"/>
+
+                <TextView
+                    android:id="@+id/file_separator"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:gravity="right"
+                    android:text=", "
                     android:textColor="@color/list_item_lastmod_and_filesize_text"
                     android:textSize="@dimen/two_line_secondary_text_size"/>
 
@@ -107,7 +115,6 @@
                     android:gravity="right"
                     android:text="TextView"
                     android:textColor="@color/list_item_lastmod_and_filesize_text"
-                    android:layout_weight=".5"
                     android:textSize="@dimen/two_line_secondary_text_size"/>
 
             </LinearLayout>

src/com/owncloud/android/ui/adapter/FileListListAdapter.java

@@ -192,6 +192,7 @@ public class FileListListAdapter extends BaseAdapter implements ListAdapter {
             switch (viewType){
                 case LIST_ITEM:
                     TextView fileSizeV = (TextView) view.findViewById(R.id.file_size);
+                    TextView fileSizeSeparatorV = (TextView) view.findViewById(R.id.file_separator);
                     TextView lastModV = (TextView) view.findViewById(R.id.last_mod);
                     ImageView checkBoxV = (ImageView) view.findViewById(R.id.custom_checkbox);
 
@@ -200,6 +201,7 @@ public class FileListListAdapter extends BaseAdapter implements ListAdapter {
 
                     checkBoxV.setVisibility(View.GONE);
 
+                    fileSizeSeparatorV.setVisibility(View.VISIBLE);
                     fileSizeV.setVisibility(View.VISIBLE);
                     fileSizeV.setText(DisplayUtils.bytesToHumanReadable(file.getFileLength()));
 
@@ -221,6 +223,7 @@ public class FileListListAdapter extends BaseAdapter implements ListAdapter {
                         }
 
                     } else { //Folder
+                        fileSizeSeparatorV.setVisibility(View.INVISIBLE);
                         fileSizeV.setVisibility(View.INVISIBLE);
                     }
 

src/com/owncloud/android/ui/adapter/LocalFileListAdapter.java

@@ -111,9 +111,11 @@ public class LocalFileListAdapter extends BaseAdapter implements ListAdapter {
             fileIcon.setTag(file.hashCode());
 
             TextView fileSizeV = (TextView) view.findViewById(R.id.file_size);
+            TextView fileSizeSeparatorV = (TextView) view.findViewById(R.id.file_separator);
             TextView lastModV = (TextView) view.findViewById(R.id.last_mod);
             ImageView checkBoxV = (ImageView) view.findViewById(R.id.custom_checkbox);
             if (!file.isDirectory()) {
+                fileSizeSeparatorV.setVisibility(View.VISIBLE);
                 fileSizeV.setVisibility(View.VISIBLE);
                 fileSizeV.setText(DisplayUtils.bytesToHumanReadable(file.length()));
 
@@ -163,6 +165,7 @@ public class LocalFileListAdapter extends BaseAdapter implements ListAdapter {
                 }  
 
             } else {
+                fileSizeSeparatorV.setVisibility(View.GONE);
                 fileSizeV.setVisibility(View.GONE);
                 lastModV.setVisibility(View.GONE);
                 checkBoxV.setVisibility(View.GONE);

src/com/owncloud/android/utils/DisplayUtils.java

@@ -22,6 +22,7 @@
 
 package com.owncloud.android.utils;
 
+import java.math.BigDecimal;
 import java.net.IDN;
 import java.text.DateFormat;
 import java.util.Arrays;
@@ -55,6 +56,7 @@ public class DisplayUtils {
     //private static String TAG = DisplayUtils.class.getSimpleName(); 
     
     private static final String[] sizeSuffixes = { "B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB" };
+    private static final int[] sizeScales = { 0, 0, 0, 1, 1, 2, 2, 2, 2 };
 
     private static HashMap<String, String> mimeType2HUmanReadable;
     static {
@@ -114,7 +116,11 @@ public class DisplayUtils {
     
     /**
      * Converts the file size in bytes to human readable output.
-     * 
+     * <ul>
+     *     <li>appends a size suffix, e.g. B, KB, MB etc.</li>
+     *     <li>rounds the size based on the suffix to 0,1 or 2 decimals</li>
+     * </ul>
+     *
      * @param bytes Input file size
      * @return Like something readable like "12 MB"
      */
@@ -125,8 +131,9 @@ public class DisplayUtils {
             result /= 1024.;
             attachedsuff++;
         }
-        result = ((int) (result * 100)) / 100.;
+
-        return result + " " + sizeSuffixes[attachedsuff];
+        return new BigDecimal(result).setScale(
+                sizeScales[attachedsuff], BigDecimal.ROUND_HALF_UP) + " " + sizeSuffixes[attachedsuff];
     }
 
     /**