Java tutorial
/* * Copyright (C) 2009 The Android Open Source Project * * 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.android.gallery3d.app; import java.util.Timer; import java.util.TimerTask; import android.content.ServiceConnection; import android.app.Service; import android.app.AlertDialog.Builder; import android.app.AlertDialog; import android.os.Message; import android.os.Handler; import android.content.DialogInterface; import android.content.DialogInterface.OnClickListener; import android.content.Context; import android.content.ComponentName; import android.os.IBinder; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.content.SharedPreferences; import android.view.LayoutInflater; import android.widget.ImageButton; import android.view.View; import android.widget.Button; import android.widget.ImageView; import android.widget.TextView; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import android.app.ProgressDialog; import android.content.res.Resources; import android.app.NotificationManager; import android.app.Notification; import android.app.PendingIntent; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.content.pm.PackageManager.NameNotFoundException; import android.app.Dialog; import android.content.ContentResolver; import android.content.DialogInterface; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.apache.http.impl.client.DefaultHttpClient; import android.os.AsyncTask; import android.widget.RemoteViews; import android.app.Notification; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.DialogInterface.OnCancelListener; import android.content.Intent; import android.net.Uri; import android.os.Bundle; import android.view.Menu; import android.view.MenuItem; import android.view.Window; import android.widget.Toast; import com.android.gallery3d.R; import com.android.gallery3d.common.Utils; import com.android.gallery3d.data.DataManager; import com.android.gallery3d.data.MediaItem; import com.android.gallery3d.data.MediaSet; import com.android.gallery3d.data.Path; import com.android.gallery3d.picasasource.PicasaSource; import com.android.gallery3d.ui.GLRoot; import com.android.gallery3d.util.GalleryUtils; public final class Gallery extends AbstractGalleryActivity implements OnCancelListener { public static final String EXTRA_SLIDESHOW = "slideshow"; public static final String EXTRA_CROP = "crop"; public static final String ACTION_REVIEW = "com.android.camera.action.REVIEW"; public static final String KEY_GET_CONTENT = "get-content"; public static final String KEY_GET_ALBUM = "get-album"; public static final String KEY_TYPE_BITS = "type-bits"; public static final String KEY_MEDIA_TYPES = "mediaTypes"; private Dialog mVersionCheckDialog; public static SharedPreferences mableUpdate; private static final String TAG = "Gallery"; private GalleryActionBar mActionBar; private long fileSize = 0; private Context mContext; private int tryNum = 0; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_ACTION_BAR); requestWindowFeature(Window.FEATURE_ACTION_BAR_OVERLAY); requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS); setContentView(R.layout.main); mActionBar = new GalleryActionBar(this); if (savedInstanceState != null) { getStateManager().restoreFromState(savedInstanceState); } else { initializeByIntent(); } } private void initializeByIntent() { Intent intent = getIntent(); String action = intent.getAction(); if (Intent.ACTION_GET_CONTENT.equalsIgnoreCase(action)) { startGetContent(intent); } else if (Intent.ACTION_PICK.equalsIgnoreCase(action)) { // We do NOT really support the PICK intent. Handle it as // the GET_CONTENT. However, we need to translate the type // in the intent here. Log.w(TAG, "action PICK is not supported"); String type = Utils.ensureNotNull(intent.getType()); if (type.startsWith("vnd.android.cursor.dir/")) { if (type.endsWith("/image")) intent.setType("image/*"); if (type.endsWith("/video")) intent.setType("video/*"); } startGetContent(intent); } else if (Intent.ACTION_VIEW.equalsIgnoreCase(action) || ACTION_REVIEW.equalsIgnoreCase(action)) { startViewAction(intent); } else { startDefaultPage(); } } public void startDefaultPage() { PicasaSource.showSignInReminder(this); Bundle data = new Bundle(); data.putString(AlbumSetPage.KEY_MEDIA_PATH, getDataManager().getTopSetPath(DataManager.INCLUDE_ALL)); getStateManager().startState(AlbumSetPage.class, data); mVersionCheckDialog = PicasaSource.getVersionCheckDialog(this); if (mVersionCheckDialog != null) { mVersionCheckDialog.setOnCancelListener(this); } } private void startGetContent(Intent intent) { Bundle data = intent.getExtras() != null ? new Bundle(intent.getExtras()) : new Bundle(); data.putBoolean(KEY_GET_CONTENT, true); int typeBits = GalleryUtils.determineTypeBits(this, intent); data.putInt(KEY_TYPE_BITS, typeBits); data.putString(AlbumSetPage.KEY_MEDIA_PATH, getDataManager().getTopSetPath(typeBits)); getStateManager().setLaunchGalleryOnTop(true); getStateManager().startState(AlbumSetPage.class, data); } private String getContentType(Intent intent) { String type = intent.getType(); if (type != null) return type; Uri uri = intent.getData(); try { return getContentResolver().getType(uri); } catch (Throwable t) { Log.w(TAG, "get type fail", t); return null; } } private void startViewAction(Intent intent) { Boolean slideshow = intent.getBooleanExtra(EXTRA_SLIDESHOW, false); getStateManager().setLaunchGalleryOnTop(true); if (slideshow) { getActionBar().hide(); DataManager manager = getDataManager(); Path path = manager.findPathByUri(intent.getData()); if (path == null || manager.getMediaObject(path) instanceof MediaItem) { path = Path.fromString(manager.getTopSetPath(DataManager.INCLUDE_IMAGE)); } Bundle data = new Bundle(); data.putString(SlideshowPage.KEY_SET_PATH, path.toString()); data.putBoolean(SlideshowPage.KEY_RANDOM_ORDER, true); data.putBoolean(SlideshowPage.KEY_REPEAT, true); getStateManager().startState(SlideshowPage.class, data); } else { Bundle data = new Bundle(); DataManager dm = getDataManager(); Uri uri = intent.getData(); String contentType = getContentType(intent); if (contentType == null) { Toast.makeText(this, R.string.no_such_item, Toast.LENGTH_LONG).show(); finish(); return; } if (uri == null) { int typeBits = GalleryUtils.determineTypeBits(this, intent); data.putInt(KEY_TYPE_BITS, typeBits); data.putString(AlbumSetPage.KEY_MEDIA_PATH, getDataManager().getTopSetPath(typeBits)); getStateManager().setLaunchGalleryOnTop(true); getStateManager().startState(AlbumSetPage.class, data); } else if (contentType.startsWith(ContentResolver.CURSOR_DIR_BASE_TYPE)) { int mediaType = intent.getIntExtra(KEY_MEDIA_TYPES, 0); if (mediaType != 0) { uri = uri.buildUpon().appendQueryParameter(KEY_MEDIA_TYPES, String.valueOf(mediaType)).build(); } Path setPath = dm.findPathByUri(uri); MediaSet mediaSet = null; if (setPath != null) { mediaSet = (MediaSet) dm.getMediaObject(setPath); } if (mediaSet != null) { if (mediaSet.isLeafAlbum()) { data.putString(AlbumPage.KEY_MEDIA_PATH, setPath.toString()); getStateManager().startState(AlbumPage.class, data); } else { data.putString(AlbumSetPage.KEY_MEDIA_PATH, setPath.toString()); getStateManager().startState(AlbumSetPage.class, data); } } else { startDefaultPage(); } } else { Path itemPath = dm.findPathByUri(uri); Path albumPath = dm.getDefaultSetOf(itemPath); // TODO: Make this parameter public so other activities can reference it. boolean singleItemOnly = intent.getBooleanExtra("SingleItemOnly", false); if (!singleItemOnly && albumPath != null) { data.putString(PhotoPage.KEY_MEDIA_SET_PATH, albumPath.toString()); } data.putString(PhotoPage.KEY_MEDIA_ITEM_PATH, itemPath.toString()); getStateManager().startState(PhotoPage.class, data); } } } @Override public boolean onCreateOptionsMenu(Menu menu) { super.onCreateOptionsMenu(menu); return getStateManager().createOptionsMenu(menu); } @Override public boolean onPrepareOptionsMenu(Menu menu) { super.onPrepareOptionsMenu(menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { GLRoot root = getGLRoot(); root.lockRenderThread(); try { return getStateManager().itemSelected(item); } finally { root.unlockRenderThread(); } } @Override public void onBackPressed() { // send the back event to the top sub-state GLRoot root = getGLRoot(); root.lockRenderThread(); try { getStateManager().onBackPressed(); } finally { root.unlockRenderThread(); } } @Override public void onDestroy() { super.onDestroy(); GLRoot root = getGLRoot(); root.lockRenderThread(); try { getStateManager().destroy(); } finally { root.unlockRenderThread(); } } @Override protected void onResume() { Utils.assertTrue(getStateManager().getStateCount() > 0); super.onResume(); } @Override protected void onPause() { super.onPause(); } @Override public GalleryActionBar getGalleryActionBar() { return mActionBar; } @Override public void onCancel(DialogInterface dialog) { } public void showDialog() { } private String setStr(long size, int status) { String str = null; int k = (int) (size / 1024); if (k < 1024) { str = status * k / 100 + "K/" + k + "K"; } else if (k >= 1024) { int m = k / 1024; k = k % 1024; str = m * status / 100 + "." + status * k / 100 + "Mb/" + m + "." + k + "Mb"; } return str; } }