Java tutorial
/* * Copyright 2012 Google Inc. All Rights Reserved. * * 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.gm.contentprovidertest; import com.google.android.gm.contentprovider.GmailContract; import android.content.Intent; import android.database.Cursor; import android.net.Uri; import android.os.Bundle; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentActivity; import android.support.v4.app.ListFragment; import android.support.v4.app.LoaderManager; import android.support.v4.content.CursorLoader; import android.support.v4.content.Loader; import android.support.v4.widget.SimpleCursorAdapter; public class LabelDetailsActivity extends FragmentActivity implements LoaderManager.LoaderCallbacks<Cursor> { public static final String LABEL_URI_EXTRA = "labelUri"; static final String[] COLUMNS_TO_SHOW = new String[] { GmailContract.Labels.NAME, GmailContract.Labels.CANONICAL_NAME, GmailContract.Labels.NUM_CONVERSATIONS, GmailContract.Labels.NUM_UNREAD_CONVERSATIONS, GmailContract.Labels.URI, GmailContract.Labels.BACKGROUND_COLOR, GmailContract.Labels.TEXT_COLOR }; static final int[] LAYOUT_ITEMS = new int[] { R.id.name_entry, R.id.canonical_name_entry, R.id.number_entry, R.id.unread_count_number_entry, R.id.uri_entry, R.id.background_color_entry, R.id.text_color_entry }; private Uri mLabelUri; private ListFragment mFragment; private SimpleCursorAdapter mAdapter; @Override public void onCreate(Bundle savedState) { super.onCreate(savedState); setContentView(R.layout.main); final Intent intent = getIntent(); mLabelUri = (Uri) intent.getParcelableExtra(LABEL_URI_EXTRA); } @Override public void onAttachFragment(Fragment fragment) { // There is only one fragment mFragment = (ListFragment) fragment; mAdapter = new SimpleCursorAdapter(this, R.layout.label_details_item, null, COLUMNS_TO_SHOW, LAYOUT_ITEMS); mFragment.setListAdapter(mAdapter); } @Override public void onResume() { super.onResume(); final Bundle args = new Bundle(); args.putParcelable("labelUri", mLabelUri); getSupportLoaderManager().restartLoader(0, args, this); } @Override public Loader<Cursor> onCreateLoader(int id, Bundle args) { final Uri labelUri = (Uri) args.getParcelable("labelUri"); return new CursorLoader(this, labelUri, null, null, null, null); } @Override public void onLoadFinished(Loader<Cursor> loader, Cursor data) { mAdapter.swapCursor(data); } @Override public void onLoaderReset(Loader<Cursor> loader) { } }