Java tutorial
/* * Copyright 2014 wada811 * * 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 at.wada811.android.dialogfragments.sample.progressdialogfragment.examples; import android.os.Bundle; import android.support.v4.app.Fragment; import android.support.v4.app.LoaderManager.LoaderCallbacks; import android.support.v4.content.Loader; import android.support.v7.app.ActionBarActivity; import android.util.Log; import android.view.View; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.ArrayAdapter; import android.widget.ListView; import java.util.ArrayList; import at.wada811.android.dialogfragments.ProgressDialogFragment; import at.wada811.android.dialogfragments.interfaces.DialogFragmentCallback; import at.wada811.android.dialogfragments.interfaces.DialogFragmentCallbackProvider; import at.wada811.android.dialogfragments.interfaces.DialogFragmentInterface; import at.wada811.android.dialogfragments.interfaces.SimpleDialogFragmentCallback; import at.wada811.android.dialogfragments.sample.R; public class LoaderSpinnerProgressDialogFragmentExamplesActivity extends ActionBarActivity implements OnItemClickListener, DialogFragmentCallbackProvider, LoaderCallbacks<Object> { private static final int LOADER_ID = 811; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); ArrayList<String> items = new ArrayList<String>(); items.add("Start Loader"); ListView listView = new ListView(this); listView.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, items)); listView.setOnItemClickListener(this); setContentView(listView); if (getSupportLoaderManager().getLoader(LOADER_ID) != null) { getSupportLoaderManager().initLoader(LOADER_ID, null, this); Log.i(LoaderSpinnerProgressDialogFragmentExamplesActivity.class.getSimpleName(), "re-init: " + LOADER_ID); } } @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { getSupportLoaderManager().initLoader(LOADER_ID, null, this); } @Override public DialogFragmentCallback getDialogFragmentCallback() { return new SimpleDialogFragmentCallback() { @Override public void onCancel(DialogFragmentInterface dialog) { Log.i(LoaderSpinnerProgressDialogFragmentExamplesActivity.class.getSimpleName(), "DialogFragmentCallback#onCancel"); getSupportLoaderManager().destroyLoader(LOADER_ID); } }; } @Override public Loader<Object> onCreateLoader(int i, Bundle bundle) { Log.i(LoaderSpinnerProgressDialogFragmentExamplesActivity.class.getSimpleName(), "onCreateLoader"); ProgressDialogFragment dialogFragment = new ProgressDialogFragment(); dialogFragment.setIcon(R.drawable.ic_launcher); dialogFragment.setTitle(R.string.title_activity_progress_dialog_fragment_with_loader_in_activity); dialogFragment.setProgressStyle(ProgressDialogFragment.STYLE_SPINNER); dialogFragment.setMessage("Loading..."); dialogFragment.setIndeterminate(true); dialogFragment.setOnCancelListener(this); dialogFragment.show(getSupportFragmentManager(), ProgressDialogFragment.TAG); return new AsyncSleepLoader(this); } @Override public void onLoadFinished(Loader<Object> loader, Object o) { Log.i(LoaderSpinnerProgressDialogFragmentExamplesActivity.class.getSimpleName(), "onLoadFinished"); getSupportLoaderManager().destroyLoader(loader.getId()); Fragment fragment = getSupportFragmentManager().findFragmentByTag(ProgressDialogFragment.TAG); if (fragment != null) { ProgressDialogFragment dialogFragment = (ProgressDialogFragment) fragment; dialogFragment.dismissAllowingStateLoss(); } } @Override public void onLoaderReset(Loader<Object> loader) { Log.i(LoaderSpinnerProgressDialogFragmentExamplesActivity.class.getSimpleName(), "onLoaderReset"); getSupportLoaderManager().destroyLoader(loader.getId()); Fragment fragment = getSupportFragmentManager().findFragmentByTag(ProgressDialogFragment.TAG); if (fragment != null) { ProgressDialogFragment dialogFragment = (ProgressDialogFragment) fragment; dialogFragment.dismissAllowingStateLoss(); } } }