ActivityBase.java revision 2a86dea8eb78891c364e5083d942c05e6019b5c6
1/* 2 * Copyright (C) 2009 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.camera; 18 19import android.app.KeyguardManager; 20import android.content.ContentResolver; 21import android.content.Context; 22import android.content.Intent; 23import android.content.pm.ActivityInfo; 24import android.hardware.Camera.Parameters; 25import android.os.AsyncTask; 26import android.os.Bundle; 27import android.util.Log; 28import android.view.animation.DecelerateInterpolator; 29import android.view.KeyEvent; 30import android.view.View; 31import android.view.Window; 32import android.view.WindowManager; 33 34import com.android.camera.ui.PopupManager; 35import com.android.camera.ui.RotateImageView; 36import com.android.gallery3d.app.AbstractGalleryActivity; 37import com.android.gallery3d.app.PhotoPage; 38import com.android.gallery3d.app.PhotoPage.PageTapListener; 39import com.android.gallery3d.app.GalleryActionBar; 40import com.android.gallery3d.app.StateManager; 41import com.android.gallery3d.util.MediaSetUtils; 42 43import java.io.File; 44 45/** 46 * Superclass of Camera and VideoCamera activities. 47 */ 48abstract public class ActivityBase extends AbstractGalleryActivity 49 implements CameraScreenNail.PositionChangedListener, 50 View.OnLayoutChangeListener, PageTapListener { 51 52 private static final String TAG = "ActivityBase"; 53 private static boolean LOGV = false; 54 private static final int CAMERA_APP_VIEW_TOGGLE_TIME = 100; // milliseconds 55 private int mResultCodeForTesting; 56 private Intent mResultDataForTesting; 57 private OnScreenHint mStorageHint; 58 private UpdateCameraAppView mUpdateCameraAppView; 59 private HideCameraAppView mHideCameraAppView; 60 private View mSingleTapArea; 61 62 // The bitmap of the last captured picture thumbnail and the URI of the 63 // original picture. 64 protected Thumbnail mThumbnail; 65 // An imageview showing showing the last captured picture thumbnail. 66 protected RotateImageView mThumbnailView; 67 protected int mThumbnailViewWidth; // layout width of the thumbnail 68 protected AsyncTask<Void, Void, Thumbnail> mLoadThumbnailTask; 69 protected boolean mOpenCameraFail; 70 protected boolean mCameraDisabled; 71 protected CameraManager.CameraProxy mCameraDevice; 72 protected Parameters mParameters; 73 // The activity is paused. The classes that extend this class should set 74 // mPaused the first thing in onResume/onPause. 75 protected boolean mPaused; 76 protected GalleryActionBar mActionBar; 77 78 // multiple cameras support 79 protected int mNumberOfCameras; 80 protected int mCameraId; 81 82 protected CameraScreenNail mCameraScreenNail; // This shows camera preview. 83 // The view containing only camera related widgets like control panel, 84 // indicator bar, focus indicator and etc. 85 protected View mCameraAppView; 86 protected boolean mShowCameraAppView = true; 87 88 protected class CameraOpenThread extends Thread { 89 @Override 90 public void run() { 91 try { 92 mCameraDevice = Util.openCamera(ActivityBase.this, mCameraId); 93 mParameters = mCameraDevice.getParameters(); 94 } catch (CameraHardwareException e) { 95 mOpenCameraFail = true; 96 } catch (CameraDisabledException e) { 97 mCameraDisabled = true; 98 } 99 } 100 } 101 102 @Override 103 public void onCreate(Bundle icicle) { 104 if (Util.isTabletUI()) { 105 setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); 106 } else { 107 setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); 108 } 109 requestWindowFeature(Window.FEATURE_ACTION_BAR); 110 requestWindowFeature(Window.FEATURE_ACTION_BAR_OVERLAY); 111 requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS); 112 getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE); 113 super.disableToggleStatusBar(); 114 super.onCreate(icicle); 115 // The full screen mode might be turned off previously. Add the flag again. 116 getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN); 117 mActionBar = new GalleryActionBar(this); 118 } 119 120 @Override 121 protected void onPause() { 122 super.onPause(); 123 if (LOGV) Log.v(TAG, "onPause"); 124 saveThumbnailToFile(); 125 126 if (mLoadThumbnailTask != null) { 127 mLoadThumbnailTask.cancel(true); 128 mLoadThumbnailTask = null; 129 } 130 131 if (mStorageHint != null) { 132 mStorageHint.cancel(); 133 mStorageHint = null; 134 } 135 } 136 137 @Override 138 public boolean onSearchRequested() { 139 return false; 140 } 141 142 @Override 143 public boolean onKeyDown(int keyCode, KeyEvent event) { 144 // Prevent software keyboard or voice search from showing up. 145 if (keyCode == KeyEvent.KEYCODE_SEARCH 146 || keyCode == KeyEvent.KEYCODE_MENU) { 147 if (event.isLongPress()) return true; 148 } 149 150 return super.onKeyDown(keyCode, event); 151 } 152 153 protected void setResultEx(int resultCode) { 154 mResultCodeForTesting = resultCode; 155 setResult(resultCode); 156 } 157 158 protected void setResultEx(int resultCode, Intent data) { 159 mResultCodeForTesting = resultCode; 160 mResultDataForTesting = data; 161 setResult(resultCode, data); 162 } 163 164 public int getResultCode() { 165 return mResultCodeForTesting; 166 } 167 168 public Intent getResultData() { 169 return mResultDataForTesting; 170 } 171 172 @Override 173 protected void onDestroy() { 174 PopupManager.removeInstance(this); 175 super.onDestroy(); 176 } 177 178 protected void updateStorageHint(long storageSpace) { 179 String message = null; 180 if (storageSpace == Storage.UNAVAILABLE) { 181 message = getString(R.string.no_storage); 182 } else if (storageSpace == Storage.PREPARING) { 183 message = getString(R.string.preparing_sd); 184 } else if (storageSpace == Storage.UNKNOWN_SIZE) { 185 message = getString(R.string.access_sd_fail); 186 } else if (storageSpace < Storage.LOW_STORAGE_THRESHOLD) { 187 message = getString(R.string.spaceIsLow_content); 188 } 189 190 if (message != null) { 191 if (mStorageHint == null) { 192 mStorageHint = OnScreenHint.makeText(this, message); 193 } else { 194 mStorageHint.setText(message); 195 } 196 mStorageHint.show(); 197 } else if (mStorageHint != null) { 198 mStorageHint.cancel(); 199 mStorageHint = null; 200 } 201 } 202 203 private void updateThumbnailView() { 204 if (mThumbnail != null) { 205 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 206 mThumbnailView.setVisibility(View.VISIBLE); 207 } else { 208 mThumbnailView.setBitmap(null); 209 mThumbnailView.setVisibility(View.GONE); 210 } 211 } 212 213 protected void getLastThumbnail() { 214 mThumbnail = ThumbnailHolder.getLastThumbnail(getContentResolver()); 215 // Suppose users tap the thumbnail view, go to the gallery, delete the 216 // image, and coming back to the camera. Thumbnail file will be invalid. 217 // Since the new thumbnail will be loaded in another thread later, the 218 // view should be set to gone to prevent from opening the invalid image. 219 updateThumbnailView(); 220 if (mThumbnail == null) { 221 mLoadThumbnailTask = new LoadThumbnailTask().execute(); 222 } 223 } 224 225 private class LoadThumbnailTask extends AsyncTask<Void, Void, Thumbnail> { 226 @Override 227 protected Thumbnail doInBackground(Void... params) { 228 // Load the thumbnail from the file. 229 ContentResolver resolver = getContentResolver(); 230 Thumbnail t = Thumbnail.getLastThumbnailFromFile(getFilesDir(), resolver); 231 232 if (isCancelled()) return null; 233 234 if (t == null) { 235 // Load the thumbnail from the media provider. 236 t = Thumbnail.getLastThumbnailFromContentResolver(resolver); 237 } 238 return t; 239 } 240 241 @Override 242 protected void onPostExecute(Thumbnail thumbnail) { 243 mThumbnail = thumbnail; 244 updateThumbnailView(); 245 } 246 } 247 248 protected void gotoGallery() { 249 PhotoPage photoPage = (PhotoPage) getStateManager().getTopState(); 250 // Move the next picture with capture animation. "1" means next. 251 photoPage.switchWithCaptureAnimation(1); 252 } 253 254 protected void saveThumbnailToFile() { 255 if (mThumbnail != null && !mThumbnail.fromFile()) { 256 new SaveThumbnailTask().execute(mThumbnail); 257 } 258 } 259 260 private class SaveThumbnailTask extends AsyncTask<Thumbnail, Void, Void> { 261 @Override 262 protected Void doInBackground(Thumbnail... params) { 263 final int n = params.length; 264 final File filesDir = getFilesDir(); 265 for (int i = 0; i < n; i++) { 266 params[i].saveLastThumbnailToFile(filesDir); 267 } 268 return null; 269 } 270 } 271 272 // Call this after setContentView. 273 protected void createCameraScreenNail(boolean getPictures) { 274 mCameraAppView = findViewById(R.id.camera_app_root); 275 Bundle data = new Bundle(); 276 String path = "/local/all/"; 277 // Intent mode does not show camera roll. Use 0 as a work around for 278 // invalid bucket id. 279 // TODO: add support of empty media set in gallery. 280 path += (getPictures ? MediaSetUtils.CAMERA_BUCKET_ID : "0"); 281 data.putString(PhotoPage.KEY_MEDIA_SET_PATH, path); 282 data.putString(PhotoPage.KEY_MEDIA_ITEM_PATH, path); 283 284 // Send a CameraScreenNail to gallery to enable the camera preview. 285 CameraScreenNailHolder holder = new CameraScreenNailHolder(this); 286 data.putParcelable(PhotoPage.KEY_SCREENNAIL_HOLDER, holder); 287 getStateManager().startState(PhotoPage.class, data); 288 mCameraScreenNail = holder.getCameraScreenNail(); 289 mCameraScreenNail.setPositionChangedListener(this); 290 } 291 292 private class HideCameraAppView implements Runnable { 293 @Override 294 public void run() { 295 mCameraAppView.setVisibility(View.GONE); 296 } 297 } 298 private class UpdateCameraAppView implements Runnable { 299 @Override 300 public void run() { 301 if (mShowCameraAppView) { 302 mCameraAppView.setVisibility(View.VISIBLE); 303 mCameraAppView.animate() 304 .setDuration(CAMERA_APP_VIEW_TOGGLE_TIME) 305 .withLayer().alpha(1); 306 } else { 307 mCameraAppView.animate() 308 .setDuration(CAMERA_APP_VIEW_TOGGLE_TIME) 309 .withLayer().alpha(0).withEndAction(mHideCameraAppView); 310 } 311 } 312 } 313 314 @Override 315 public void onPositionChanged(int x, int y, int width, int height, boolean visible) { 316 if (!mPaused && !isFinishing()) { 317 View rootView = (View) getGLRoot(); 318 int rootWidth = rootView.getWidth(); 319 int rootHeight = rootView.getHeight(); 320 boolean showCameraAppView; 321 // Check if the camera preview is in the center. 322 if (visible && (x == 0 && width == rootWidth) || 323 (y == 0 && height == rootHeight && Math.abs(x - (rootWidth - width) / 2) <= 1)) { 324 showCameraAppView = true; 325 } else { 326 showCameraAppView = false; 327 } 328 329 if (mShowCameraAppView != showCameraAppView) { 330 mShowCameraAppView = showCameraAppView; 331 // Initialize the animation. 332 if (mUpdateCameraAppView == null) { 333 mUpdateCameraAppView = new UpdateCameraAppView(); 334 mHideCameraAppView = new HideCameraAppView(); 335 mCameraAppView.animate() 336 .setInterpolator(new DecelerateInterpolator()); 337 } 338 runOnUiThread(mUpdateCameraAppView); 339 } 340 } 341 } 342 343 @Override 344 public GalleryActionBar getGalleryActionBar() { 345 return mActionBar; 346 } 347 348 // Preview frame layout has changed. Move the preview to the center of the 349 // layout. 350 @Override 351 public void onLayoutChange(View v, int left, int top, int right, int bottom, 352 int oldLeft, int oldTop, int oldRight, int oldBottom) { 353 // Find out the left and top of the preview frame layout relative to GL 354 // root view. 355 View root = (View) getGLRoot(); 356 int[] rootLocation = new int[2]; 357 int[] viewLocation = new int[2]; 358 root.getLocationInWindow(rootLocation); 359 v.getLocationInWindow(viewLocation); 360 int relativeLeft = viewLocation[0] - rootLocation[0]; 361 int relativeTop = viewLocation[1] - rootLocation[1]; 362 363 // Calculate the scale ratio between preview frame layout and GL root 364 // view. 365 int width = root.getWidth(); 366 int height = root.getHeight(); 367 float scale = Math.max((float) (right - left) / width, 368 (float) (bottom - top) / height); 369 float scalePx = width / 2f; 370 float scalePy = height / 2f; 371 372 // Calculate the translate distance. 373 float translateX = relativeLeft + (right - left - width) / 2f; 374 float translateY = relativeTop + (bottom - top - height) / 2f; 375 376 mCameraScreenNail.setMatrix(scale, scalePx, scalePy, translateX, translateY); 377 } 378 379 protected void setSingleTapUpListener(View singleTapArea) { 380 PhotoPage photoPage = (PhotoPage) getStateManager().getTopState(); 381 photoPage.setPageTapListener(this); 382 mSingleTapArea = singleTapArea; 383 } 384 385 // Single tap up from PhotoPage. 386 @Override 387 public boolean onSingleTapUp(int x, int y) { 388 // Camera control is invisible. Ignore. 389 if (!mShowCameraAppView) return false; 390 391 int[] relativeLocation = Util.getRelativeLocation((View) getGLRoot(), 392 mSingleTapArea); 393 x -= relativeLocation[0]; 394 y -= relativeLocation[1]; 395 if (x >= 0 && x < mSingleTapArea.getWidth() && y >= 0 396 && y < mSingleTapArea.getHeight()) { 397 onSingleTapUp(mSingleTapArea, x, y); 398 return true; 399 } 400 return false; 401 } 402 403 protected void onSingleTapUp(View view, int x, int y) { 404 } 405} 406