release notes + welcome window

src/main/java/org/solovyev/android/view/prefs/AndroidUtils.java

@@ -6,6 +6,10 @@
 
 package org.solovyev.android.view.prefs;
 
+import android.app.Activity;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.PackageManager;
 import android.view.Gravity;
 import android.view.View;
 import android.view.ViewGroup;
@@ -52,4 +56,37 @@ public final class AndroidUtils {
             }
         }
     }
+
+	public static void addTab(@NotNull Context context,
+							  @NotNull TabHost tabHost,
+							  @NotNull String tabId,
+							  int tabCaptionId,
+							  @NotNull Class<? extends Activity> activityClass) {
+
+		TabHost.TabSpec spec;
+
+		final Intent intent = new Intent().setClass(context, activityClass);
+
+		// Initialize a TabSpec for each tab and add it to the TabHost
+		spec = tabHost.newTabSpec(tabId).setIndicator(context.getString(tabCaptionId)).setContent(intent);
+
+		tabHost.addTab(spec);
+	}
+
+
+	/**
+	 * @param context context
+	 * @param appPackageName - full name of the package of an app, 'com.example.app' for example.
+	 * @return version number we are currently in
+	 */
+	public static int getAppVersionCode(@NotNull Context context, @NotNull String appPackageName) {
+		try {
+			return context.getPackageManager().getPackageInfo(appPackageName, 0).versionCode;
+		} catch (PackageManager.NameNotFoundException e) {
+			// App not installed!
+		}
+		return -1;
+	}
+
 }
+

src/main/java/org/solovyev/android/view/prefs/ResourceCache.java

@@ -8,6 +8,7 @@ package org.solovyev.android.view.prefs;
 
 import android.app.Activity;
 import android.content.Context;
+import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.util.Log;
 import android.view.View;
@@ -84,24 +85,43 @@ public enum ResourceCache {
 		if (!initialized(locale)) {
 			final Map<String, String> captionsByLanguage = new HashMap<String, String>();
 
-			for (Field field : resourceClass.getDeclaredFields()) {
-				int modifiers = field.getModifiers();
-				if (Modifier.isFinal(modifiers) && Modifier.isStatic(modifiers)) {
-					try {
-						int captionId = field.getInt(resourceClass);
-						captionsByLanguage.put(field.getName(), context.getString(captionId));
-					} catch (IllegalAccessException e) {
-						Log.e(ResourceCache.class.getName(), e.getMessage());
-					} catch (Resources.NotFoundException e) {
-						Log.e(ResourceCache.class.getName(), "Caption with name " + field.getName() + " was not found for " + locale.getLanguage() + " language: " + e.getMessage());
+			final Locale defaultLocale = Locale.getDefault();
+
+			try {
+				if (!defaultLocale.getLanguage().equals(locale.getLanguage())) {
+					updateConfiguration(context, locale);
+				}
+
+				for (Field field : resourceClass.getDeclaredFields()) {
+					int modifiers = field.getModifiers();
+					if (Modifier.isFinal(modifiers) && Modifier.isStatic(modifiers)) {
+						try {
+							int captionId = field.getInt(resourceClass);
+							captionsByLanguage.put(field.getName(), context.getString(captionId));
+						} catch (IllegalAccessException e) {
+							Log.e(ResourceCache.class.getName(), e.getMessage());
+						} catch (Resources.NotFoundException e) {
+							Log.e(ResourceCache.class.getName(), "Caption with name " + field.getName() + " was not found for " + locale.getLanguage() + " language: " + e.getMessage());
+						}
 					}
 				}
+			} finally {
+				if (!defaultLocale.getLanguage().equals(locale.getLanguage())) {
+					updateConfiguration(context, defaultLocale);
+				}
 			}
 
 			captions.put(locale.getLanguage(), captionsByLanguage);
 		}
 	}
 
+	private static void updateConfiguration(@NotNull Context context, @NotNull Locale locale) {
+		Locale.setDefault(locale);
+		final Configuration config = new Configuration();
+		config.locale = locale;
+		context.getResources().updateConfiguration(config, context.getResources().getDisplayMetrics());
+	}
+
 	private boolean initialized(@NotNull Locale locale) {
 		return captions.containsKey(locale.getLanguage());
 	}