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CustomLocaleActivity.javaAPI DocAndroid 1.5 API11899Wed May 06 22:41:08 BST 2009com.android.customlocale

CustomLocaleActivity

public class CustomLocaleActivity extends android.app.ListActivity
Displays the list of system locales as well as maintain a custom list of user locales. The user can select a locale and apply it or it can create or remove a custom locale.

Fields Summary
private static final String
CUSTOM_LOCALES_SEP
private static final String
CUSTOM_LOCALES
private static final String
KEY_CUSTOM
private static final String
KEY_NAME
private static final String
KEY_CODE
private static final String
TAG
private static final boolean
DEBUG
private static final int
UPDATE_LIST
Request code returned when the NewLocaleDialog activity finishes.
private static final int
MENU_APPLY
Menu item id for applying a locale
private static final int
MENU_REMOVE
Menu item id for removing a custom locale
private android.widget.ListView
mListView
List view displaying system and custom locales.
private android.widget.TextView
mCurrentLocaleTextView
Textview used to display current locale
private android.content.SharedPreferences
mPrefs
Private shared preferences of this activity.
Constructors Summary
Methods Summary
private voiddisplayCurrentLocale()

        try {
            IActivityManager am = ActivityManagerNative.getDefault();
            Configuration config = am.getConfiguration();

            if (config.locale != null) {
                String text = String.format("%s - %s",
                        config.locale.toString(),
                        config.locale.getDisplayName());
                mCurrentLocaleTextView.setText(text);
            }
        } catch (RemoteException e) {
            if (DEBUG) {
                Log.e(TAG, "get current locale failed", e);
            }
        }
protected voidonActivityResult(int requestCode, int resultCode, android.content.Intent data)

        super.onActivityResult(requestCode, resultCode, data);

        if (requestCode == UPDATE_LIST && resultCode == RESULT_OK && data != null) {
            String locale = data.getExtras().getString(NewLocaleDialog.INTENT_EXTRA_LOCALE);
            if (locale != null && locale.length() > 0) {
                // Get current custom locale list
                String customLocales = mPrefs.getString(CUSTOM_LOCALES, null);

                // Update
                if (customLocales == null) {
                    customLocales = locale;
                } else {
                    customLocales += CUSTOM_LOCALES_SEP + locale;
                }

                // Save prefs
                if (DEBUG) {
                    Log.d(TAG, "add/customLocales: " + customLocales);
                }
                mPrefs.edit().putString(CUSTOM_LOCALES, customLocales).commit();

                Toast.makeText(this, "Added custom locale: " + locale, Toast.LENGTH_SHORT).show();

                // Update list view
                setupLocaleList();

                // Find the item to select it in the list view
                ListAdapter a = mListView.getAdapter();
                for (int i = 0; i < a.getCount(); i++) {
                    Object o = a.getItem(i);
                    if (o instanceof Map<?, ?>) {
                        String code = ((Map<String, String>) o).get(KEY_CODE);
                        if (code != null && code.equals(locale)) {
                            mListView.setSelection(i);
                            break;
                        }
                    }
                }

                if (data.getExtras().getBoolean(NewLocaleDialog.INTENT_EXTRA_SELECT)) {
                    selectLocale(locale);
                }
            }
        }
public booleanonContextItemSelected(android.view.MenuItem item)


        String pendingLocale = null;
        boolean is_custom = false;

        ContextMenuInfo menuInfo = item.getMenuInfo();
        if (menuInfo instanceof AdapterContextMenuInfo) {
            int position = ((AdapterContextMenuInfo) menuInfo).position;
            Object o = mListView.getItemAtPosition(position);
            if (o instanceof Map<?, ?>) {
                pendingLocale = ((Map<String, String>) o).get(KEY_CODE);
                is_custom = ((Map<String, String>) o).get(KEY_CUSTOM) != null;
            }
        }

        if (pendingLocale == null) {
            // should never happen
            return super.onContextItemSelected(item);
        }

        if (item.getItemId() == MENU_REMOVE) {
            // Get current custom locale list
            String customLocales = mPrefs.getString(CUSTOM_LOCALES, "");

            if (DEBUG) {
                Log.d(TAG, "Remove " + pendingLocale + " from custom locales: " + customLocales);
            }

            // Update
            StringBuilder sb = new StringBuilder();
            for (String locale : customLocales.split(CUSTOM_LOCALES_SEP)) {
                if (locale != null && locale.length() > 0 && !locale.equals(pendingLocale)) {
                    if (sb.length() > 0) {
                        sb.append(CUSTOM_LOCALES_SEP);
                    }
                    sb.append(locale);
                }
            }
            String newLocales = sb.toString();
            if (!newLocales.equals(customLocales)) {
                // Save prefs
                mPrefs.edit().putString(CUSTOM_LOCALES, customLocales).commit();

                Toast.makeText(this, "Removed custom locale: " + pendingLocale, Toast.LENGTH_SHORT)
                        .show();
            }

        } else if (item.getItemId() == MENU_APPLY) {
            selectLocale(pendingLocale);
        }

        return super.onContextItemSelected(item);
protected voidonCreate(android.os.Bundle savedInstanceState)


    
        
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        mPrefs = getPreferences(MODE_PRIVATE);

        Button newLocaleButton = (Button) findViewById(R.id.new_locale);

        newLocaleButton.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Intent i = new Intent(CustomLocaleActivity.this, NewLocaleDialog.class);
                startActivityForResult(i, UPDATE_LIST);
            }
        });

        mListView = (ListView) findViewById(android.R.id.list);
        mListView.setFocusable(true);
        mListView.setFocusableInTouchMode(true);
        mListView.requestFocus();
        registerForContextMenu(mListView);
        setupLocaleList();

        mCurrentLocaleTextView = (TextView) findViewById(R.id.current_locale);
        displayCurrentLocale();
public voidonCreateContextMenu(android.view.ContextMenu menu, android.view.View v, android.view.ContextMenu.ContextMenuInfo menuInfo)

        super.onCreateContextMenu(menu, v, menuInfo);

        if (menuInfo instanceof AdapterContextMenuInfo) {
            int position = ((AdapterContextMenuInfo) menuInfo).position;
            Object o = mListView.getItemAtPosition(position);
            if (o instanceof Map<?, ?>) {
                String locale = ((Map<String, String>) o).get(KEY_CODE);
                String custom = ((Map<String, String>) o).get(KEY_CUSTOM);

                if (custom == null) {
                    menu.setHeaderTitle("System Locale");
                    menu.add(0, MENU_APPLY, 0, "Apply");
                } else {
                    menu.setHeaderTitle("Custom Locale");
                    menu.add(0, MENU_APPLY, 0, "Apply");
                    menu.add(0, MENU_REMOVE, 0, "Remove");
                }
            }
        }
private voidselectLocale(java.lang.String locale)

        if (DEBUG) {
            Log.d(TAG, "Select locale " + locale);
        }

        try {
            IActivityManager am = ActivityManagerNative.getDefault();
            Configuration config = am.getConfiguration();

            Locale loc = new Locale(locale);
            config.locale = loc;

            // indicate this isn't some passing default - the user wants this
            // remembered
            config.userSetLocale = true;

            am.updateConfiguration(config);

            Toast.makeText(this, "Select locale: " + locale, Toast.LENGTH_SHORT).show();
        } catch (RemoteException e) {
            if (DEBUG) {
                Log.e(TAG, "Select locale failed", e);
            }
        }
private voidsetupLocaleList()

        if (DEBUG) {
            Log.d(TAG, "Update locate list");
        }

        ArrayList<Map<String, String>> data = new ArrayList<Map<String, String>>();

        // Insert all system locales
        String[] locales = getAssets().getLocales();
        for (String locale : locales) {
            Locale loc = new Locale(locale);

            Map<String, String> map = new HashMap<String, String>(1);
            map.put(KEY_CODE, locale);
            map.put(KEY_NAME, loc.getDisplayName());
            data.add(map);
        }
        locales = null;

        // Insert all custom locales
        String customLocales = mPrefs.getString(CUSTOM_LOCALES, "");
        if (DEBUG) {
            Log.d(TAG, "customLocales: " + customLocales);
        }
        for (String locale : customLocales.split(CUSTOM_LOCALES_SEP)) {
            if (locale != null && locale.length() > 0) {
                Locale loc = new Locale(locale);

                Map<String, String> map = new HashMap<String, String>(1);
                map.put(KEY_CODE, locale);
                map.put(KEY_NAME, loc.getDisplayName() + " [Custom]");
                // the presence of the "custom" key marks it as custom.
                map.put(KEY_CUSTOM, "");
                data.add(map);
            }
        }

        // Sort all locales by code
        Collections.sort(data, new Comparator<Map<String, String>>() {
            public int compare(Map<String, String> lhs, Map<String, String> rhs) {
                return lhs.get(KEY_CODE).compareTo(rhs.get(KEY_CODE));
            }
        });

        // Update the list view adapter
        mListView.setAdapter(new SimpleAdapter(this, data, R.layout.list_item, new String[] {
                KEY_CODE, KEY_NAME}, new int[] {R.id.locale_code, R.id.locale_name}));