Java tutorial
/*- * Copyright (C) 2010 Google 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.google.android.demos.rss.widget; import com.google.android.demos.rss.provider.RssContract.Channels; import com.google.android.demos.rss.provider.RssContract.Items; import com.google.android.feeds.FeedExtras; import android.content.Context; import android.database.Cursor; import android.net.Uri; import android.os.Bundle; import android.support.v4.content.CursorLoader; import android.support.v4.content.Loader; import android.support.v4.widget.CursorAdapter; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.TextView; /** * Adapter for an RSS channel. */ public class ChannelAdapter extends CursorAdapter { private static final String[] PROJECTION = { Items._ID, Items.TITLE_PLAINTEXT, Items.DESCRIPTION, Items.LINK }; public static Loader<Cursor> createLoader(Context context, Uri uri) { return new CursorLoader(context, uri, PROJECTION, null, null, null); } private static final int COLUMN_TITLE = 1; private static final int COLUMN_DESCRIPTION = 2; private static final int COLUMN_LINK = 3; public static void setItemData(ItemDialog itemDialog, Cursor cursor) { Bundle extras = cursor.getExtras(); String title = cursor.getString(COLUMN_TITLE); String url = cursor.getString(COLUMN_LINK); String description = cursor.getString(COLUMN_DESCRIPTION); String channel = extras.getString(Channels.TITLE_PLAINTEXT); itemDialog.setData(title, url, description, channel); } public ChannelAdapter(Context context) { super(context, null, 0); } @Override public View newView(Context context, Cursor cursor, ViewGroup parent) { LayoutInflater inflater = LayoutInflater.from(context); return inflater.inflate(android.R.layout.simple_list_item_1, parent, false); } @Override public void bindView(View view, Context context, Cursor cursor) { String title = cursor.getString(COLUMN_TITLE); TextView text1 = (TextView) view.findViewById(android.R.id.text1); text1.setText(title); } public boolean hasError() { Cursor cursor = getCursor(); return cursor != null && cursor.getExtras().containsKey(FeedExtras.EXTRA_ERROR); } }