130 lines
4.1 KiB
Java
130 lines
4.1 KiB
Java
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.inputmethod;
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import com.android.settings.R;
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import android.app.ListFragment;
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import android.app.LoaderManager.LoaderCallbacks;
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import android.content.AsyncTaskLoader;
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import android.content.Context;
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import android.content.Loader;
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import android.hardware.input.InputManager;
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import android.hardware.input.KeyboardLayout;
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import android.os.Bundle;
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import android.util.Log;
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import android.view.View;
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import android.widget.ArrayAdapter;
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import android.widget.ListView;
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import java.util.Arrays;
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public class KeyboardLayoutPicker extends ListFragment
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implements LoaderCallbacks<KeyboardLayout[]> {
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private static final String TAG = "KeyboardLayoutPicker";
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private String mInputDeviceDescriptor;
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/**
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* Intent extra: The input device descriptor of the keyboard whose keyboard
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* layout is to be changed.
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*/
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public static final String EXTRA_INPUT_DEVICE_DESCRIPTOR = "input_device_descriptor";
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@Override
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public void onActivityCreated(Bundle savedInstanceState) {
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super.onActivityCreated(savedInstanceState);
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mInputDeviceDescriptor = getActivity().getIntent().getStringExtra(
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EXTRA_INPUT_DEVICE_DESCRIPTOR);
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if (mInputDeviceDescriptor == null) {
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Log.e(TAG, "Missing expected intent parameter: " + EXTRA_INPUT_DEVICE_DESCRIPTOR);
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getActivity().finish();
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}
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setEmptyText(getActivity().getText(R.string.keyboard_layout_picker_empty_text));
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getLoaderManager().initLoader(0, null, this);
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}
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@Override
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public void onResume() {
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super.onResume();
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getListView().requestFocus();
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}
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@Override
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public void onListItemClick(ListView l, View v, int position, long id) {
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if (mInputDeviceDescriptor != null) {
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KeyboardLayout c = (KeyboardLayout)l.getItemAtPosition(position);
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InputManager im = (InputManager)getActivity().getSystemService(Context.INPUT_SERVICE);
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im.setKeyboardLayoutForInputDevice(mInputDeviceDescriptor, c.getDescriptor());
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}
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getActivity().finish();
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}
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@Override
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public Loader<KeyboardLayout[]> onCreateLoader(int id, Bundle args) {
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return new KeyboardLayoutLoader(getActivity());
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}
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@Override
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public void onLoadFinished(Loader<KeyboardLayout[]> loader,
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KeyboardLayout[] data) {
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setListAdapter(new KeyboardLayoutAdapter(getActivity(), data));
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}
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@Override
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public void onLoaderReset(Loader<KeyboardLayout[]> loader) {
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setListAdapter(null);
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}
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private static final class KeyboardLayoutAdapter
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extends ArrayAdapter<KeyboardLayout> {
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public KeyboardLayoutAdapter(Context context, KeyboardLayout[] list) {
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super(context, android.R.layout.simple_list_item_1, list);
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}
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}
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private static final class KeyboardLayoutLoader
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extends AsyncTaskLoader<KeyboardLayout[]> {
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public KeyboardLayoutLoader(Context context) {
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super(context);
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}
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@Override
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public KeyboardLayout[] loadInBackground() {
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InputManager im = (InputManager)getContext().getSystemService(Context.INPUT_SERVICE);
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KeyboardLayout[] list = im.getKeyboardLayouts();
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Arrays.sort(list);
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return list;
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}
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@Override
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protected void onStartLoading() {
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super.onStartLoading();
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forceLoad();
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}
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@Override
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protected void onStopLoading() {
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super.onStopLoading();
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cancelLoad();
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}
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}
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}
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