Java tutorial
/* * Copyright (C) 2014 nohana, Inc. * * 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.laevatein.internal.ui.helper; import android.database.Cursor; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentManager; import android.support.v4.widget.CursorAdapter; import android.widget.AdapterView; import android.widget.ListView; import com.amalgam.os.HandlerUtils; import com.laevatein.R; import com.laevatein.internal.entity.Album; import com.laevatein.internal.entity.AlbumViewResources; import com.laevatein.internal.misc.ui.FragmentUtils; import com.laevatein.internal.ui.AlbumListFragment; import com.laevatein.internal.ui.adapter.DevicePhotoAlbumAdapter; /** * @author KeithYokoma * @version 1.0.0 * @hide * @since 2014/03/20 */ public final class AlbumListViewHelper { private AlbumListViewHelper() { throw new AssertionError("oops! the utility class is about to be instantiated..."); } public static void setUpListView(Fragment fragment, AdapterView.OnItemClickListener listener, AlbumViewResources resources) { ListView listView = (ListView) FragmentUtils.findViewById(fragment, R.id.l_list_album); listView.setOnItemClickListener(listener); listView.setAdapter(new DevicePhotoAlbumAdapter(fragment.getActivity(), null, resources)); } public static void setCursor(Fragment fragment, Cursor cursor) { ListView listView = (ListView) FragmentUtils.findViewById(fragment, R.id.l_list_album); CursorAdapter adapter = (CursorAdapter) listView.getAdapter(); adapter.swapCursor(cursor); } public static void callOnSelect(AlbumListFragment.OnDirectorySelectListener listener, Cursor cursor) { Album album = Album.valueOf(cursor); listener.onSelect(album); } public static void callOnDefaultSelect(final Fragment fragment, final AlbumListFragment.OnDirectorySelectListener listener, final Cursor cursor) { HandlerUtils.getMainHandler().post(new Runnable() { @Override public void run() { FragmentManager manager = fragment.getActivity().getSupportFragmentManager(); Fragment f = manager.findFragmentById(R.id.l_container_grid_fragment); if (f != null) { return; } cursor.moveToFirst(); callOnSelect(listener, cursor); } }); } public static void setCheckedState(Fragment fragment, int position) { ListView listView = (ListView) FragmentUtils.findViewById(fragment, R.id.l_list_album); listView.setItemChecked(position, true); } }