Merge branch 'master' of https://github.com/owncloud/android into material_fab

[pub/Android/ownCloud.git] / src / com / owncloud / android / utils / DisplayUtils.java

diff --git a/src/com/owncloud/android/utils/DisplayUtils.java b/src/com/owncloud/android/utils/DisplayUtils.java
index a30595c..43e5708 100644 (file)
--- a/src/com/owncloud/android/utils/DisplayUtils.java
+++ b/src/com/owncloud/android/utils/DisplayUtils.java
@@ -37,6 +37,7 @@ import com.owncloud.android.MainApp;
 import com.owncloud.android.R;\r
 import com.owncloud.android.datamodel.OCFile;\r
 \r
+import java.math.BigDecimal;\r
 import java.net.IDN;\r
 import java.text.DateFormat;\r
 import java.util.Calendar;\r
@@ -52,6 +53,7 @@ public class DisplayUtils {
     private static final String OWNCLOUD_APP_NAME = "ownCloud";\r
     \r
     private static final String[] sizeSuffixes = { "B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB" };\r
+    private static final int[] sizeScales = { 0, 0, 0, 1, 1, 2, 2, 2, 2 };\r
 \r
     private static Map<String, String> mimeType2HumanReadable;\r
 \r
@@ -72,19 +74,24 @@ public class DisplayUtils {
 \r
     /**\r
      * Converts the file size in bytes to human readable output.\r
-     * \r
+     * <ul>\r
+     *     <li>appends a size suffix, e.g. B, KB, MB etc.</li>\r
+     *     <li>rounds the size based on the suffix to 0,1 or 2 decimals</li>\r
+     * </ul>\r
+     *\r
      * @param bytes Input file size\r
      * @return Like something readable like "12 MB"\r
      */\r
     public static String bytesToHumanReadable(long bytes) {\r
         double result = bytes;\r
-        int attachedsuff = 0;\r
-        while (result > 1024 && attachedsuff < sizeSuffixes.length) {\r
+        int attachedSuff = 0;\r
+        while (result > 1024 && attachedSuff < sizeSuffixes.length) {\r
             result /= 1024.;\r
-            attachedsuff++;\r
+            attachedSuff++;\r
         }\r
-        result = ((int) (result * 100)) / 100.;\r
-        return result + " " + sizeSuffixes[attachedsuff];\r
+\r
+        return new BigDecimal(result).setScale(\r
+                sizeScales[attachedSuff], BigDecimal.ROUND_HALF_UP) + " " + sizeSuffixes[attachedSuff];\r
     }\r
 \r
     /**\r