AbstractGalleryActivity.java revision b1eb01cd02d1e75e6b9c3e593f6ff34335e2ca8a
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.gallery3d.app; 18 19import android.annotation.TargetApi; 20import android.app.Activity; 21import android.app.AlertDialog; 22import android.content.BroadcastReceiver; 23import android.content.Context; 24import android.content.DialogInterface; 25import android.content.DialogInterface.OnCancelListener; 26import android.content.DialogInterface.OnClickListener; 27import android.content.Intent; 28import android.content.IntentFilter; 29import android.content.res.Configuration; 30import android.os.Bundle; 31import android.view.Menu; 32import android.view.MenuItem; 33import android.view.Window; 34import android.view.WindowManager; 35 36import com.android.gallery3d.R; 37import com.android.gallery3d.common.ApiHelper; 38import com.android.gallery3d.data.BitmapPool; 39import com.android.gallery3d.data.DataManager; 40import com.android.gallery3d.data.MediaItem; 41import com.android.gallery3d.ui.GLRoot; 42import com.android.gallery3d.ui.GLRootView; 43import com.android.gallery3d.util.ThreadPool; 44 45public class AbstractGalleryActivity extends Activity implements GalleryActivity { 46 @SuppressWarnings("unused") 47 private static final String TAG = "AbstractGalleryActivity"; 48 private GLRootView mGLRootView; 49 private StateManager mStateManager; 50 private GalleryActionBar mActionBar; 51 private OrientationManager mOrientationManager; 52 private TransitionStore mTransitionStore = new TransitionStore(); 53 private boolean mDisableToggleStatusBar; 54 55 private AlertDialog mAlertDialog = null; 56 private BroadcastReceiver mMountReceiver = new BroadcastReceiver() { 57 @Override 58 public void onReceive(Context context, Intent intent) { 59 if (getExternalCacheDir() != null) onStorageReady(); 60 } 61 }; 62 private IntentFilter mMountFilter = new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 63 64 @Override 65 protected void onCreate(Bundle savedInstanceState) { 66 super.onCreate(savedInstanceState); 67 mOrientationManager = new OrientationManager(this); 68 toggleStatusBarByOrientation(); 69 getWindow().setBackgroundDrawable(null); 70 } 71 72 @Override 73 protected void onSaveInstanceState(Bundle outState) { 74 mGLRootView.lockRenderThread(); 75 try { 76 super.onSaveInstanceState(outState); 77 getStateManager().saveState(outState); 78 } finally { 79 mGLRootView.unlockRenderThread(); 80 } 81 } 82 83 @Override 84 public void onConfigurationChanged(Configuration config) { 85 super.onConfigurationChanged(config); 86 mStateManager.onConfigurationChange(config); 87 invalidateOptionsMenu(); 88 toggleStatusBarByOrientation(); 89 } 90 91 private Menu mOptionsMenu; 92 93 @Override 94 public boolean onCreateOptionsMenu(Menu menu) { 95 mOptionsMenu = menu; 96 super.onCreateOptionsMenu(menu); 97 return getStateManager().createOptionsMenu(menu); 98 } 99 100 @Override 101 @TargetApi(ApiHelper.VERSION_CODES.HONEYCOMB) 102 public void invalidateOptionsMenu() { 103 if (ApiHelper.HAS_ACTIVITY_INVALIDATE_OPTIONS_MENU) { 104 super.invalidateOptionsMenu(); 105 } else if (mOptionsMenu != null) { 106 mOptionsMenu.clear(); 107 getStateManager().createOptionsMenu(mOptionsMenu); 108 } 109 } 110 111 @Override 112 public Context getAndroidContext() { 113 return this; 114 } 115 116 @Override 117 public DataManager getDataManager() { 118 return ((GalleryApp) getApplication()).getDataManager(); 119 } 120 121 @Override 122 public ThreadPool getThreadPool() { 123 return ((GalleryApp) getApplication()).getThreadPool(); 124 } 125 126 @Override 127 public synchronized StateManager getStateManager() { 128 if (mStateManager == null) { 129 mStateManager = new StateManager(this); 130 } 131 return mStateManager; 132 } 133 134 @Override 135 public GLRoot getGLRoot() { 136 return mGLRootView; 137 } 138 139 @Override 140 public OrientationManager getOrientationManager() { 141 return mOrientationManager; 142 } 143 144 @Override 145 public void setContentView(int resId) { 146 super.setContentView(resId); 147 mGLRootView = (GLRootView) findViewById(R.id.gl_root_view); 148 } 149 150 protected void onStorageReady() { 151 if (mAlertDialog != null) { 152 mAlertDialog.dismiss(); 153 mAlertDialog = null; 154 unregisterReceiver(mMountReceiver); 155 } 156 } 157 158 @Override 159 protected void onStart() { 160 super.onStart(); 161 if (getExternalCacheDir() == null) { 162 OnCancelListener onCancel = new OnCancelListener() { 163 @Override 164 public void onCancel(DialogInterface dialog) { 165 finish(); 166 } 167 }; 168 OnClickListener onClick = new OnClickListener() { 169 @Override 170 public void onClick(DialogInterface dialog, int which) { 171 dialog.cancel(); 172 } 173 }; 174 mAlertDialog = new AlertDialog.Builder(this) 175 .setIconAttribute(android.R.attr.alertDialogIcon) 176 .setTitle(R.string.no_external_storage_title) 177 .setMessage(R.string.no_external_storage) 178 .setNegativeButton(android.R.string.cancel, onClick) 179 .setOnCancelListener(onCancel) 180 .show(); 181 registerReceiver(mMountReceiver, mMountFilter); 182 } 183 } 184 185 @Override 186 protected void onStop() { 187 super.onStop(); 188 if (mAlertDialog != null) { 189 unregisterReceiver(mMountReceiver); 190 mAlertDialog.dismiss(); 191 mAlertDialog = null; 192 } 193 } 194 195 @Override 196 protected void onResume() { 197 super.onResume(); 198 mGLRootView.lockRenderThread(); 199 try { 200 getStateManager().resume(); 201 getDataManager().resume(); 202 } finally { 203 mGLRootView.unlockRenderThread(); 204 } 205 mGLRootView.onResume(); 206 mOrientationManager.resume(); 207 } 208 209 @Override 210 protected void onPause() { 211 super.onPause(); 212 mOrientationManager.pause(); 213 mGLRootView.onPause(); 214 mGLRootView.lockRenderThread(); 215 try { 216 getStateManager().pause(); 217 getDataManager().pause(); 218 } finally { 219 mGLRootView.unlockRenderThread(); 220 } 221 clearBitmapPool(MediaItem.getMicroThumbPool()); 222 clearBitmapPool(MediaItem.getThumbPool()); 223 224 MediaItem.getBytesBufferPool().clear(); 225 } 226 227 private static void clearBitmapPool(BitmapPool pool) { 228 if (pool != null) pool.clear(); 229 } 230 231 @Override 232 protected void onDestroy() { 233 super.onDestroy(); 234 mGLRootView.lockRenderThread(); 235 try { 236 getStateManager().destroy(); 237 } finally { 238 mGLRootView.unlockRenderThread(); 239 } 240 } 241 242 @Override 243 protected void onActivityResult(int requestCode, int resultCode, Intent data) { 244 mGLRootView.lockRenderThread(); 245 try { 246 getStateManager().notifyActivityResult( 247 requestCode, resultCode, data); 248 } finally { 249 mGLRootView.unlockRenderThread(); 250 } 251 } 252 253 @Override 254 public void onBackPressed() { 255 // send the back event to the top sub-state 256 GLRoot root = getGLRoot(); 257 root.lockRenderThread(); 258 try { 259 getStateManager().onBackPressed(); 260 } finally { 261 root.unlockRenderThread(); 262 } 263 } 264 265 @Override 266 public GalleryActionBar getGalleryActionBar() { 267 if (mActionBar == null) { 268 mActionBar = new GalleryActionBar(this); 269 } 270 return mActionBar; 271 } 272 273 @Override 274 public boolean onOptionsItemSelected(MenuItem item) { 275 GLRoot root = getGLRoot(); 276 root.lockRenderThread(); 277 try { 278 return getStateManager().itemSelected(item); 279 } finally { 280 root.unlockRenderThread(); 281 } 282 } 283 284 protected void disableToggleStatusBar() { 285 mDisableToggleStatusBar = true; 286 } 287 288 // Shows status bar in portrait view, hide in landscape view 289 private void toggleStatusBarByOrientation() { 290 if (mDisableToggleStatusBar) return; 291 292 Window win = getWindow(); 293 if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) { 294 win.clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN); 295 } else { 296 win.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN); 297 } 298 } 299 300 @Override 301 public TransitionStore getTransitionStore() { 302 return mTransitionStore; 303 } 304} 305