Show apk sizes next to each version (incorporates supporting database changes)

res/layout/apklistitem.xml

@@ -15,6 +15,10 @@
 			android:layout_below="@id/version" android:layout_alignParentRight="false"
 			android:layout_height="wrap_content" android:layout_width="wrap_content" />
 
+		<TextView android:id="@+id/size" android:textSize="12sp"
+			android:layout_below="@id/version" android:layout_alignParentRight="true"
+			android:layout_height="wrap_content" android:layout_width="wrap_content" />
+
 	</RelativeLayout>
 
 </LinearLayout>

src/org/fdroid/fdroid/AppDetails.java

@@ -102,10 +102,30 @@ public class AppDetails extends ListActivity {
                 status.setText("Installed");
             else
                 status.setText("Not installed");
+            TextView size = (TextView) v.findViewById(R.id.size);
+            if(apk.size==0) {
+                size.setText("");
+            } else {
+                size.setText(getFriendlySize(apk.size));
+            }   
             return v;
         }
     }
 
+    private static String getFriendlySize(int size)
+    {
+        double s=size;
+        String[] format=new String[] {"%fb","%.0fK","%.1fM","%.2fG"};
+        int i=0;
+        while(i<format.length-1 && s>=1024)
+        {
+           s=(100*s/1024)/100.0;
+           i++;
+        }
+        return String.format(format[i],s);
+    }
+    
+    
     private static final int INSTALL = Menu.FIRST;
     private static final int UNINSTALL = Menu.FIRST + 1;
     private static final int WEBSITE = Menu.FIRST + 2;

src/org/fdroid/fdroid/DB.java

@@ -38,6 +38,12 @@ public class DB {
 
     private SQLiteDatabase db;
 
+    // The TABLE_VERSION table tracks the database version.
+    private static final String TABLE_VERSION = "fdroid_version";
+    private static final String CREATE_TABLE_VERSION = "create table "
+            + TABLE_VERSION + "( version int not null); insert into "
+            + TABLE_VERSION + "(version) values (1);";
+
     // The TABLE_APP table stores details of all the applications we know about.
     // This information is retrieved from the repositories.
     private static final String TABLE_APP = "fdroid_app";
@@ -116,17 +122,19 @@ public class DB {
             + "( " + "id text not null, " + "version text not null, "
             + "server text not null, " + "hash text not null, "
             + "vercode int not null," + "apkName text not null, "
-            + "primary key(id,version));";
+            + "size int not null," + "primary key(id,version));";
 
     public static class Apk {
 
         public Apk() {
             updated = false;
+            size = 0;
         }
 
         public String id;
         public String version;
         public int vercode;
+        public int size; // Size in bytes - 0 means we don't know!
         public String server;
         public String hash;
         public String apkName;
@@ -159,7 +167,7 @@ public class DB {
 
         Cursor c = db.rawQuery(
                 "SELECT name FROM sqlite_master WHERE type='table' AND name= '"
-                        + TABLE_REPO + "'", null);
+                        + TABLE_VERSION + "'", null);
         boolean newinst = (c.getCount() == 0);
         c.close();
         if (newinst)
@@ -171,9 +179,11 @@ public class DB {
     // Reset the database, i.e. (re-)create all the tables from scratch and
     // populate any initial data.
     public void reset() {
+        db.execSQL("drop table if exists " + TABLE_VERSION);
         db.execSQL("drop table if exists " + TABLE_REPO);
         db.execSQL("drop table if exists " + TABLE_APP);
         db.execSQL("drop table if exists " + TABLE_APK);
+        db.execSQL(CREATE_TABLE_VERSION);
         db.execSQL(CREATE_TABLE_REPO);
         db.execSQL(CREATE_TABLE_APP);
         db.execSQL(CREATE_TABLE_APK);
@@ -233,6 +243,7 @@ public class DB {
                     apk.vercode = c2.getInt(c2.getColumnIndex("vercode"));
                     apk.server = c2.getString(c2.getColumnIndex("server"));
                     apk.hash = c2.getString(c2.getColumnIndex("hash"));
+                    apk.size = c2.getInt(c2.getColumnIndex("size"));
                     apk.apkName = c2.getString(c2.getColumnIndex("apkName"));
                     app.apks.add(apk);
                     c2.moveToNext();
@@ -262,7 +273,9 @@ public class DB {
         // We'll say an application has updates if it's installed and the
         // installed version is not the 'current' one.
         for (App app : result) {
-            if(app.installedVersion != null && !app.installedVersion.equals(app.getCurrentVersion().version)) {
+            if (app.installedVersion != null
+                    && !app.installedVersion
+                            .equals(app.getCurrentVersion().version)) {
                 app.hasUpdates = true;
             }
         }
@@ -433,6 +446,7 @@ public class DB {
         values.put("vercode", upapk.vercode);
         values.put("server", upapk.server);
         values.put("hash", upapk.hash);
+        values.put("size", upapk.size);
         values.put("apkName", upapk.apkName);
         if (oldapk != null) {
             db.update(TABLE_APK, values, "id = '" + oldapk.id

src/org/fdroid/fdroid/RepoXMLHandler.java

@@ -67,6 +67,12 @@ public class RepoXMLHandler extends DefaultHandler {
                 } catch (NumberFormatException ex) {
                     curapk.vercode = 0;
                 }
+            } else if (curel == "size") {
+                try {
+                    curapk.size = Integer.parseInt(str);
+                } catch (NumberFormatException ex) {
+                    curapk.size = 0;
+                }
             } else if (curel == "hash") {
                 curapk.hash = str;
             } else if (curel == "apkname") {