Initial Contribution

src/com/android/settings/LocalePicker.java

@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings;
+
+import android.app.ActivityManagerNative;
+import android.app.IActivityManager;
+import android.app.ListActivity;
+import android.content.res.Configuration;
+import android.os.Bundle;
+import android.os.RemoteException;
+import android.os.SystemProperties;
+import android.util.Log;
+import android.view.View;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
+
+import java.io.BufferedWriter;
+import java.io.FileOutputStream;
+import java.util.Arrays;
+import java.util.Locale;
+
+public class LocalePicker extends ListActivity {
+    private static final String TAG = "LocalePicker";
+
+    Loc[] mLocales;
+
+    private static class Loc {
+        String label;
+        Locale locale;
+
+        public Loc(String label, Locale locale) {
+            this.label = label;
+            this.locale = locale;
+        }
+
+        @Override
+        public String toString() {
+            return this.label;
+        }
+    }
+
+    int getContentView() {
+        return R.layout.locale_picker;
+    }
+    
+    @Override
+    public void onCreate(Bundle icicle) {
+        super.onCreate(icicle);
+        setContentView(getContentView());
+
+        String[] locales = getAssets().getLocales();
+        final int N = locales.length;
+        mLocales = new Loc[N];
+        for (int i = 0; i < N; i++) {
+            Locale locale = null;
+            String s = locales[i];
+            int len = s.length();
+            if (len == 0) {
+                locale = new Locale("en", "US");
+            } else if (len == 2) {
+                locale = new Locale(s);
+            } else if (len == 5) {
+                locale = new Locale(s.substring(0, 2), s.substring(3, 5));
+            }
+            String displayName = "";
+            if (locale != null) {
+                displayName = locale.getDisplayName();
+            }
+            if ("zz_ZZ".equals(s)) {
+                displayName = "Pseudo...";
+            }
+
+            mLocales[i] = new Loc(displayName, locale);
+        }
+
+        int layoutId = R.layout.locale_picker_item;
+        int fieldId = R.id.locale;
+        ArrayAdapter<Loc> adapter = new ArrayAdapter<Loc>(this, layoutId, fieldId, mLocales);
+        getListView().setAdapter(adapter);
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        getListView().requestFocus();
+    }
+
+    @Override
+    protected void onListItemClick(ListView l, View v, int position, long id) {
+        try {
+            IActivityManager am = ActivityManagerNative.getDefault();
+            Configuration config = am.getConfiguration();
+
+            Loc loc = mLocales[position];
+            config.locale = loc.locale;
+            final String language = loc.locale.getLanguage();
+            final String region = loc.locale.getCountry();
+
+            am.updateConfiguration(config);
+            
+            // Update the System properties
+            SystemProperties.set("user.language", language);
+            SystemProperties.set("user.region", region);
+            // Write to file for persistence across reboots
+            try {
+                BufferedWriter bw = new BufferedWriter(new java.io.FileWriter(
+                        System.getenv("ANDROID_DATA") + "/locale"));
+                bw.write(language + "_" + region);
+                bw.close();
+            } catch (java.io.IOException ioe) {
+                Log.e(TAG, 
+                        "Unable to persist locale. Error writing to locale file." 
+                        + ioe);
+            }    
+        } catch (RemoteException e) {
+            // Intentionally left blank
+        }
+        finish();
+    }
+}