Fix crashes due to API 19, Version 2.4

Author: Dominik Schürmann

document-viewer/AndroidManifest.xml

@@ -3,8 +3,8 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     package="org.sufficientlysecure.viewer"
     android:installLocation="auto"
-    android:versionCode="2300"
-    android:versionName="2.3">
+    android:versionCode="2400"
+    android:versionName="2.4">
 
     <uses-sdk
         android:minSdkVersion="8"

document-viewer/assets/about/en/changelog.wiki

@@ -1,5 +1,10 @@
 #labels Featured
 
+= DV v2.4 =
+
+== Bug fixes ==
+ * Fix preference crashes
+
 = DV v2.3 =
 
 == New features ==

document-viewer/project.properties

@@ -8,4 +8,4 @@
 # project structure.
 
 # Project target.
-target=android-17
+target=android-19

document-viewer/src/org/ebookdroid/ui/settings/FragmentedSettingsActivity.java

@@ -1,5 +1,16 @@
+
 package org.ebookdroid.ui.settings;
 
+import org.ebookdroid.ui.settings.fragments.BackupFragment;
+import org.ebookdroid.ui.settings.fragments.BasePreferenceFragment;
+import org.ebookdroid.ui.settings.fragments.BrowserFragment;
+import org.ebookdroid.ui.settings.fragments.NavFragment;
+import org.ebookdroid.ui.settings.fragments.OpdsFragment;
+import org.ebookdroid.ui.settings.fragments.PerformanceFragment;
+import org.ebookdroid.ui.settings.fragments.RenderFragment;
+import org.ebookdroid.ui.settings.fragments.ScrollFragment;
+import org.ebookdroid.ui.settings.fragments.TypeSpecificFragment;
+import org.ebookdroid.ui.settings.fragments.UIFragment;
 import org.sufficientlysecure.viewer.R;
 
 import android.annotation.TargetApi;
@@ -27,4 +38,20 @@ public boolean onIsMultiPane() {
         }
         return false;
     }
+
+    protected boolean isValidFragment(String fragmentName) {
+        if (ScrollFragment.class.getName().equals(fragmentName)
+                || UIFragment.class.getName().equals(fragmentName)
+                || NavFragment.class.getName().equals(fragmentName)
+                || PerformanceFragment.class.getName().equals(fragmentName)
+                || TypeSpecificFragment.class.getName().equals(fragmentName)
+                || BackupFragment.class.getName().equals(fragmentName)
+                || BasePreferenceFragment.class.getName().equals(fragmentName)
+                || BrowserFragment.class.getName().equals(fragmentName)
+                || OpdsFragment.class.getName().equals(fragmentName)
+                || RenderFragment.class.getName().equals(fragmentName)) {
+            return true;
+        }
+        return false;
+    }
 }