Camera.java revision 55319ceeef829274a95e2a41e7e365228acf5ccd
1/* 2 * Copyright (C) 2007 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 com.android.camera.gallery.Cancelable; 20import com.android.camera.gallery.IImage; 21import com.android.camera.gallery.IImageList; 22 23import android.app.Activity; 24import android.content.ActivityNotFoundException; 25import android.content.BroadcastReceiver; 26import android.content.ContentResolver; 27import android.content.Context; 28import android.content.Intent; 29import android.content.IntentFilter; 30import android.content.SharedPreferences; 31import android.graphics.Bitmap; 32import android.graphics.BitmapFactory; 33import android.graphics.Matrix; 34import android.graphics.drawable.BitmapDrawable; 35import android.hardware.Camera.PictureCallback; 36import android.hardware.Camera.Size; 37import android.location.Location; 38import android.location.LocationManager; 39import android.location.LocationProvider; 40import android.media.AudioManager; 41import android.media.ToneGenerator; 42import android.net.Uri; 43import android.os.Bundle; 44import android.os.Debug; 45import android.os.Environment; 46import android.os.Handler; 47import android.os.Message; 48import android.os.SystemClock; 49import android.preference.PreferenceManager; 50import android.provider.MediaStore; 51import android.text.format.DateFormat; 52import android.util.AttributeSet; 53import android.util.Log; 54import android.view.Gravity; 55import android.view.KeyEvent; 56import android.view.Menu; 57import android.view.MenuItem; 58import android.view.MotionEvent; 59import android.view.OrientationEventListener; 60import android.view.SurfaceHolder; 61import android.view.View; 62import android.view.ViewGroup; 63import android.view.Window; 64import android.view.WindowManager; 65import android.view.MenuItem.OnMenuItemClickListener; 66import android.view.animation.AlphaAnimation; 67import android.view.animation.Animation; 68import android.widget.ImageView; 69import android.widget.Toast; 70import android.widget.ZoomButtonsController; 71 72import java.io.File; 73import java.io.FileNotFoundException; 74import java.io.FileOutputStream; 75import java.io.IOException; 76import java.io.OutputStream; 77import java.util.ArrayList; 78import java.util.StringTokenizer; 79 80/** 81 * Activity of the Camera which used to see preview and take pictures. 82 */ 83public class Camera extends Activity implements View.OnClickListener, 84 ShutterButton.OnShutterButtonListener, SurfaceHolder.Callback { 85 86 private static final String TAG = "camera"; 87 88 private static final int CROP_MSG = 1; 89 private static final int FIRST_TIME_INIT = 2; 90 private static final int RESTART_PREVIEW = 3; 91 private static final int CLEAR_SCREEN_DELAY = 4; 92 private static final int STORE_IMAGE_DONE = 5; 93 94 private static final int SCREEN_DELAY = 2 * 60 * 1000; 95 private static final int FOCUS_BEEP_VOLUME = 100; 96 97 public static final int MENU_SWITCH_TO_VIDEO = 0; 98 public static final int MENU_SWITCH_TO_CAMERA = 1; 99 public static final int MENU_FLASH_SETTING = 2; 100 public static final int MENU_FLASH_AUTO = 3; 101 public static final int MENU_FLASH_ON = 4; 102 public static final int MENU_FLASH_OFF = 5; 103 public static final int MENU_SETTINGS = 6; 104 public static final int MENU_GALLERY_PHOTOS = 7; 105 public static final int MENU_GALLERY_VIDEOS = 8; 106 public static final int MENU_SAVE_SELECT_PHOTOS = 30; 107 public static final int MENU_SAVE_NEW_PHOTO = 31; 108 public static final int MENU_SAVE_GALLERY_PHOTO = 34; 109 public static final int MENU_SAVE_GALLERY_VIDEO_PHOTO = 35; 110 public static final int MENU_SAVE_CAMERA_DONE = 36; 111 public static final int MENU_SAVE_CAMERA_VIDEO_DONE = 37; 112 113 private android.hardware.Camera.Parameters mParameters; 114 private int mZoomIndex = 0; // The index of the current zoom value. 115 private String[] mZoomValues; // All possible zoom values. 116 117 // The parameter strings to communicate with camera driver. 118 public static final String PARM_ZOOM = "zoom"; 119 public static final String PARM_PICTURE_SIZE = "picture-size"; 120 public static final String PARM_JPEG_QUALITY = "jpeg-quality"; 121 public static final String PARM_ROTATION = "rotation"; 122 public static final String PARM_GPS_LATITUDE = "gps-latitude"; 123 public static final String PARM_GPS_LONGITUDE = "gps-longitude"; 124 public static final String PARM_GPS_ALTITUDE = "gps-altitude"; 125 public static final String PARM_GPS_TIMESTAMP = "gps-timestamp"; 126 public static final String SUPPORTED_ZOOM = "zoom-values"; 127 public static final String SUPPORTED_PICTURE_SIZE = "picture-size-values"; 128 129 private OrientationEventListener mOrientationListener; 130 private int mLastOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 131 private SharedPreferences mPreferences; 132 133 private static final int IDLE = 1; 134 private static final int SNAPSHOT_IN_PROGRESS = 2; 135 136 private int mStatus = IDLE; 137 private static final String sTempCropFilename = "crop-temp"; 138 139 private android.hardware.Camera mCameraDevice; 140 private VideoPreview mSurfaceView; 141 private SurfaceHolder mSurfaceHolder = null; 142 private ShutterButton mShutterButton; 143 private FocusRectangle mFocusRectangle; 144 private ImageView mGpsIndicator; 145 private ToneGenerator mFocusToneGenerator; 146 private ZoomButtonsController mZoomButtons; 147 148 // mPostCaptureAlert, mLastPictureButton, mThumbController 149 // are non-null only if isImageCaptureIntent() is true. 150 private View mPostCaptureAlert; 151 private ImageView mLastPictureButton; 152 private ThumbnailController mThumbController; 153 154 private int mViewFinderWidth, mViewFinderHeight; 155 156 private ImageCapture mImageCapture = null; 157 158 private boolean mPreviewing; 159 private boolean mPausing; 160 private boolean mFirstTimeInitialized; 161 private boolean mIsImageCaptureIntent; 162 private boolean mRecordLocation; 163 164 private static final int FOCUS_NOT_STARTED = 0; 165 private static final int FOCUSING = 1; 166 private static final int FOCUSING_SNAP_ON_FINISH = 2; 167 private static final int FOCUS_SUCCESS = 3; 168 private static final int FOCUS_FAIL = 4; 169 private int mFocusState = FOCUS_NOT_STARTED; 170 171 private ContentResolver mContentResolver; 172 private boolean mDidRegister = false; 173 174 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 175 176 private LocationManager mLocationManager = null; 177 178 // Use OneShotPreviewCallback to measure the time between 179 // JpegPictureCallback and preview. 180 private final OneShotPreviewCallback mOneShotPreviewCallback = 181 new OneShotPreviewCallback(); 182 private final ShutterCallback mShutterCallback = new ShutterCallback(); 183 private final RawPictureCallback mRawPictureCallback = 184 new RawPictureCallback(); 185 private final AutoFocusCallback mAutoFocusCallback = 186 new AutoFocusCallback(); 187 private long mFocusStartTime; 188 private long mFocusCallbackTime; 189 private long mCaptureStartTime; 190 private long mShutterCallbackTime; 191 private long mRawPictureCallbackTime; 192 private long mJpegPictureCallbackTime; 193 private int mPicturesRemaining; 194 195 //Add the camera latency time 196 public static long mAutoFocusTime; 197 public static long mShutterLag; 198 public static long mShutterAndRawPictureCallbackTime; 199 public static long mJpegPictureCallbackTimeLag; 200 public static long mRawPictureAndJpegPictureCallbackTime; 201 202 // Focus mode. Options are pref_camera_focusmode_entryvalues. 203 private String mFocusMode; 204 205 private Thread mStoreImageThread = null; 206 private final Handler mHandler = new MainHandler(); 207 208 private interface Capturer { 209 Uri getLastCaptureUri(); 210 void onSnap(); 211 } 212 213 /** 214 * This Handler is used to post message back onto the main thread of the 215 * application 216 */ 217 private class MainHandler extends Handler { 218 @Override 219 public void handleMessage(Message msg) { 220 switch (msg.what) { 221 case RESTART_PREVIEW: { 222 restartPreview(); 223 break; 224 } 225 226 case STORE_IMAGE_DONE: { 227 if (!mIsImageCaptureIntent) { 228 setLastPictureThumb((byte[])msg.obj, mImageCapture.getLastCaptureUri()); 229 updateThumbnailButton(); 230 } else { 231 showPostCaptureAlert(); 232 } 233 mStoreImageThread = null; 234 break; 235 } 236 237 case CLEAR_SCREEN_DELAY: { 238 getWindow().clearFlags( 239 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 240 break; 241 } 242 243 case FIRST_TIME_INIT: { 244 initializeFirstTime(); 245 break; 246 } 247 } 248 } 249 } 250 251 // Snapshots can only be taken after this is called. It should be called 252 // once only. We could have done these things in onCreate() but we want to 253 // make preview screen appear as soon as possible. 254 void initializeFirstTime() { 255 if (mFirstTimeInitialized) return; 256 257 // Create orientation listenter. This should be done first because it 258 // takes some time to get first orientation. 259 mOrientationListener = 260 new OrientationEventListener(Camera.this) { 261 @Override 262 public void onOrientationChanged(int orientation) { 263 // We keep the last known orientation. So if the user 264 // first orient the camera then point the camera to 265 // floor/sky, we still have the correct orientation. 266 if (orientation != ORIENTATION_UNKNOWN) { 267 mLastOrientation = orientation; 268 } 269 } 270 }; 271 mOrientationListener.enable(); 272 273 // Initialize location sevice. 274 mLocationManager = (LocationManager) 275 getSystemService(Context.LOCATION_SERVICE); 276 readPreference(); 277 if (mRecordLocation) startReceivingLocationUpdates(); 278 279 // Initialize last picture button. 280 mContentResolver = getContentResolver(); 281 if (!mIsImageCaptureIntent) { 282 findViewById(R.id.video_button).setOnClickListener(this); 283 mLastPictureButton = (ImageView) findViewById(R.id.review_button); 284 mLastPictureButton.setOnClickListener(this); 285 mThumbController = new ThumbnailController( 286 mLastPictureButton, mContentResolver); 287 mThumbController.loadData(ImageManager.getLastImageThumbPath()); 288 // Update last image thumbnail. 289 updateThumbnailButton(); 290 } else { 291 findViewById(R.id.review_button).setVisibility(View.INVISIBLE); 292 findViewById(R.id.video_button).setVisibility(View.INVISIBLE); 293 ViewGroup cameraView = (ViewGroup) findViewById(R.id.camera); 294 getLayoutInflater().inflate( 295 R.layout.post_picture_panel, cameraView); 296 mPostCaptureAlert = findViewById(R.id.post_picture_panel); 297 } 298 299 findViewById(R.id.photo_indicator).setVisibility(View.VISIBLE); 300 // Initialize shutter button. 301 mShutterButton = (ShutterButton) findViewById(R.id.camera_button); 302 mShutterButton.setOnShutterButtonListener(this); 303 mShutterButton.setVisibility(View.VISIBLE); 304 305 mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); 306 updateFocusIndicator(); 307 308 // Initialize GPS indicator. 309 mGpsIndicator = (ImageView) findViewById(R.id.gps_indicator); 310 mGpsIndicator.setImageResource(R.drawable.ic_gps_active_camera); 311 312 ImageManager.ensureOSXCompatibleFolder(); 313 314 calculatePicturesRemaining(); 315 316 installIntentFilter(); 317 318 initializeFocusTone(); 319 320 // Disable zoom until driver is ready. 321 // TODO: enable this. 322 //initializeZoom(); 323 324 mFirstTimeInitialized = true; 325 } 326 327 private void updateThumbnailButton() { 328 if (!mThumbController.isUriValid()) { 329 updateLastImage(); 330 } 331 mThumbController.updateDisplayIfNeeded(); 332 } 333 334 // If the activity is paused and resumed, this method will be called in 335 // onResume. 336 void initializeSecondTime() { 337 // Start orientation listener as soon as possible because it takes 338 // some time to get first orientation. 339 mOrientationListener.enable(); 340 341 // Start location update if needed. 342 readPreference(); 343 if (mRecordLocation) startReceivingLocationUpdates(); 344 345 installIntentFilter(); 346 347 initializeFocusTone(); 348 349 if (!mIsImageCaptureIntent) { 350 updateThumbnailButton(); 351 } 352 } 353 354 private void initializeZoom() { 355 String zoomValuesStr = mParameters.get(SUPPORTED_ZOOM); 356 if (zoomValuesStr == null) return; 357 358 mZoomValues = getZoomValues(zoomValuesStr); 359 if (mZoomValues == null) return; 360 361 mZoomButtons = new ZoomButtonsController(mSurfaceView); 362 mZoomButtons.setAutoDismissed(true); 363 mZoomButtons.setOnZoomListener( 364 new ZoomButtonsController.OnZoomListener() { 365 public void onVisibilityChanged(boolean visible) { 366 if (visible) { 367 updateZoomButtonsEnabled(); 368 } 369 } 370 371 public void onZoom(boolean zoomIn) { 372 if (zoomIn) { 373 zoomIn(); 374 } else { 375 zoomOut(); 376 } 377 updateZoomButtonsEnabled(); 378 } 379 }); 380 } 381 382 private void zoomIn() { 383 if (mZoomIndex < mZoomValues.length - 1) { 384 mZoomIndex++; 385 mParameters.set(PARM_ZOOM, mZoomValues[mZoomIndex]); 386 mCameraDevice.setParameters(mParameters); 387 } 388 } 389 390 private void zoomOut() { 391 if (mZoomIndex > 0) { 392 mZoomIndex--; 393 mParameters.set(PARM_ZOOM, mZoomValues[mZoomIndex]); 394 mCameraDevice.setParameters(mParameters); 395 } 396 } 397 398 private void updateZoomButtonsEnabled() { 399 mZoomButtons.setZoomInEnabled(mZoomIndex < mZoomValues.length - 1); 400 mZoomButtons.setZoomOutEnabled(mZoomIndex > 0); 401 } 402 403 private String[] getZoomValues(String zoomValuesStr) { 404 ArrayList<String> list = new ArrayList<String>(); 405 String[] zoomValues = null; 406 StringTokenizer tokenizer = new StringTokenizer(zoomValuesStr, ","); 407 408 while (tokenizer.hasMoreElements()) { 409 list.add(tokenizer.nextToken()); 410 } 411 if (list.size() > 0) { 412 zoomValues = list.toArray(new String[list.size()]); 413 } 414 return zoomValues; 415 } 416 417 418 LocationListener [] mLocationListeners = new LocationListener[] { 419 new LocationListener(LocationManager.GPS_PROVIDER), 420 new LocationListener(LocationManager.NETWORK_PROVIDER) 421 }; 422 423 424 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 425 @Override 426 public void onReceive(Context context, Intent intent) { 427 String action = intent.getAction(); 428 if (action.equals(Intent.ACTION_MEDIA_MOUNTED)) { 429 // SD card available 430 updateStorageHint(calculatePicturesRemaining()); 431 } else if (action.equals(Intent.ACTION_MEDIA_UNMOUNTED) || 432 action.equals(Intent.ACTION_MEDIA_CHECKING)) { 433 // SD card unavailable 434 mPicturesRemaining = MenuHelper.NO_STORAGE_ERROR; 435 updateStorageHint(mPicturesRemaining); 436 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_STARTED)) { 437 Toast.makeText(Camera.this, 438 getResources().getString(R.string.wait), 5000); 439 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 440 updateStorageHint(); 441 } 442 } 443 }; 444 445 private class LocationListener 446 implements android.location.LocationListener { 447 Location mLastLocation; 448 boolean mValid = false; 449 String mProvider; 450 451 public LocationListener(String provider) { 452 mProvider = provider; 453 mLastLocation = new Location(mProvider); 454 } 455 456 public void onLocationChanged(Location newLocation) { 457 if (newLocation.getLatitude() == 0.0 458 && newLocation.getLongitude() == 0.0) { 459 // Hack to filter out 0.0,0.0 locations 460 return; 461 } 462 // If GPS is available before start camera, we won't get status 463 // update so update GPS indicator when we receive data. 464 if (mRecordLocation 465 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 466 mGpsIndicator.setVisibility(View.VISIBLE); 467 } 468 mLastLocation.set(newLocation); 469 mValid = true; 470 } 471 472 public void onProviderEnabled(String provider) { 473 } 474 475 public void onProviderDisabled(String provider) { 476 mValid = false; 477 } 478 479 public void onStatusChanged( 480 String provider, int status, Bundle extras) { 481 switch(status) { 482 case LocationProvider.OUT_OF_SERVICE: 483 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 484 mValid = false; 485 if (mRecordLocation && 486 LocationManager.GPS_PROVIDER.equals(provider)) { 487 mGpsIndicator.setVisibility(View.INVISIBLE); 488 } 489 break; 490 } 491 } 492 } 493 494 public Location current() { 495 return mValid ? mLastLocation : null; 496 } 497 } 498 499 private final class OneShotPreviewCallback 500 implements android.hardware.Camera.PreviewCallback { 501 public void onPreviewFrame(byte[] data, 502 android.hardware.Camera camera) { 503 long now = System.currentTimeMillis(); 504 if (mJpegPictureCallbackTime != 0) { 505 mJpegPictureCallbackTimeLag = now - mJpegPictureCallbackTime; 506 Log.v(TAG, "mJpegPictureCallbackTimeLag = " 507 + mJpegPictureCallbackTimeLag + "ms"); 508 mJpegPictureCallbackTime = 0; 509 } 510 } 511 } 512 513 private final class ShutterCallback 514 implements android.hardware.Camera.ShutterCallback { 515 public void onShutter() { 516 mShutterCallbackTime = System.currentTimeMillis(); 517 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 518 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 519 clearFocusState(); 520 } 521 } 522 523 private final class RawPictureCallback implements PictureCallback { 524 public void onPictureTaken( 525 byte [] rawData, android.hardware.Camera camera) { 526 mRawPictureCallbackTime = System.currentTimeMillis(); 527 mShutterAndRawPictureCallbackTime = 528 mRawPictureCallbackTime - mShutterCallbackTime; 529 Log.v(TAG, "mShutterAndRawPictureCallbackTime = " 530 + mShutterAndRawPictureCallbackTime + "ms"); 531 } 532 } 533 534 private final class JpegPictureCallback implements PictureCallback { 535 Location mLocation; 536 537 public JpegPictureCallback(Location loc) { 538 mLocation = loc; 539 } 540 541 public void onPictureTaken( 542 final byte [] jpegData, final android.hardware.Camera camera) { 543 if (mPausing) { 544 return; 545 } 546 547 mJpegPictureCallbackTime = System.currentTimeMillis(); 548 mRawPictureAndJpegPictureCallbackTime = 549 mJpegPictureCallbackTime - mRawPictureCallbackTime; 550 Log.v(TAG, "mRawPictureAndJpegPictureCallbackTime = " 551 + mRawPictureAndJpegPictureCallbackTime +"ms"); 552 if (jpegData != null) { 553 mStoreImageThread = new Thread() { 554 public void run() { 555 mImageCapture.storeImage(jpegData, camera, mLocation); 556 } 557 }; 558 mStoreImageThread.start(); 559 } 560 561 if (!mIsImageCaptureIntent) { 562 long delay = 1500 - ( 563 System.currentTimeMillis() - mRawPictureCallbackTime); 564 mHandler.sendEmptyMessageDelayed( 565 RESTART_PREVIEW, Math.max(delay, 0)); 566 } 567 } 568 } 569 570 private final class AutoFocusCallback 571 implements android.hardware.Camera.AutoFocusCallback { 572 public void onAutoFocus( 573 boolean focused, android.hardware.Camera camera) { 574 mFocusCallbackTime = System.currentTimeMillis(); 575 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 576 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 577 if (mFocusState == FOCUSING_SNAP_ON_FINISH) { 578 // Take the picture no matter focus succeeds or fails. No need 579 // to play the AF sound if we're about to play the shutter 580 // sound. 581 if (focused) { 582 mFocusState = FOCUS_SUCCESS; 583 } else { 584 mFocusState = FOCUS_FAIL; 585 } 586 mImageCapture.onSnap(); 587 } else if (mFocusState == FOCUSING) { 588 // User is half-pressing the focus key. Play the focus tone. 589 // Do not take the picture now. 590 ToneGenerator tg = mFocusToneGenerator; 591 if (tg != null) { 592 tg.startTone(ToneGenerator.TONE_PROP_BEEP2); 593 } 594 if (focused) { 595 mFocusState = FOCUS_SUCCESS; 596 } else { 597 mFocusState = FOCUS_FAIL; 598 } 599 } else if (mFocusState == FOCUS_NOT_STARTED) { 600 // User has released the focus key before focus completes. 601 // Do nothing. 602 } 603 updateFocusIndicator(); 604 } 605 } 606 607 private class ImageCapture implements Capturer { 608 609 private boolean mCancel = false; 610 611 private Uri mLastContentUri; 612 private Cancelable<Void> mAddImageCancelable; 613 614 Bitmap mCaptureOnlyBitmap; 615 616 private void storeImage(byte[] data, Location loc) { 617 try { 618 long dateTaken = System.currentTimeMillis(); 619 String name = createName(dateTaken) + ".jpg"; 620 mLastContentUri = ImageManager.addImage( 621 mContentResolver, 622 name, 623 dateTaken, 624 loc, // location for the database goes here 625 0, // the dsp will use the right orientation so 626 // don't "double set it" 627 ImageManager.CAMERA_IMAGE_BUCKET_NAME, 628 name); 629 if (mLastContentUri == null) { 630 // this means we got an error 631 mCancel = true; 632 } 633 if (!mCancel) { 634 mAddImageCancelable = ImageManager.storeImage( 635 mLastContentUri, mContentResolver, 636 0, null, data); 637 mAddImageCancelable.get(); 638 mAddImageCancelable = null; 639 ImageManager.setImageSize(mContentResolver, mLastContentUri, 640 new File(ImageManager.CAMERA_IMAGE_BUCKET_NAME, 641 name).length()); 642 } 643 } catch (Exception ex) { 644 Log.e(TAG, "Exception while compressing image.", ex); 645 } 646 } 647 648 public void storeImage( 649 final byte[] data, android.hardware.Camera camera, Location loc) { 650 Message msg = mHandler.obtainMessage(STORE_IMAGE_DONE); 651 if (!mIsImageCaptureIntent) { 652 storeImage(data, loc); 653 sendBroadcast(new Intent( 654 "com.android.camera.NEW_PICTURE", mLastContentUri)); 655 msg.obj = data; 656 } else { 657 BitmapFactory.Options options = new BitmapFactory.Options(); 658 options.inSampleSize = 4; 659 660 mCaptureOnlyBitmap = BitmapFactory.decodeByteArray( 661 data, 0, data.length, options); 662 } 663 mHandler.sendMessage(msg); 664 } 665 666 /** 667 * Initiate the capture of an image. 668 */ 669 public void initiate() { 670 if (mCameraDevice == null) { 671 return; 672 } 673 674 mCancel = false; 675 676 capture(); 677 } 678 679 public Uri getLastCaptureUri() { 680 return mLastContentUri; 681 } 682 683 public Bitmap getLastBitmap() { 684 return mCaptureOnlyBitmap; 685 } 686 687 private void capture() { 688 mCaptureOnlyBitmap = null; 689 690 int orientation = mLastOrientation; 691 if (orientation != OrientationEventListener.ORIENTATION_UNKNOWN) { 692 orientation += 90; 693 } 694 orientation = ImageManager.roundOrientation(orientation); 695 Log.v(TAG, "mLastOrientation = " + mLastOrientation 696 + ", orientation = " + orientation); 697 698 mParameters.set(PARM_ROTATION, orientation); 699 700 Location loc = mRecordLocation ? getCurrentLocation() : null; 701 702 mParameters.remove(PARM_GPS_LATITUDE); 703 mParameters.remove(PARM_GPS_LONGITUDE); 704 mParameters.remove(PARM_GPS_ALTITUDE); 705 mParameters.remove(PARM_GPS_TIMESTAMP); 706 707 if (loc != null) { 708 double lat = loc.getLatitude(); 709 double lon = loc.getLongitude(); 710 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 711 712 if (hasLatLon) { 713 String latString = String.valueOf(lat); 714 String lonString = String.valueOf(lon); 715 mParameters.set(PARM_GPS_LATITUDE, latString); 716 mParameters.set(PARM_GPS_LONGITUDE, lonString); 717 if (loc.hasAltitude()) { 718 mParameters.set(PARM_GPS_ALTITUDE, 719 String.valueOf(loc.getAltitude())); 720 } else { 721 // for NETWORK_PROVIDER location provider, we may have 722 // no altitude information, but the driver needs it, so 723 // we fake one. 724 mParameters.set(PARM_GPS_ALTITUDE, "0"); 725 } 726 if (loc.getTime() != 0) { 727 // Location.getTime() is UTC in milliseconds. 728 // gps-timestamp is UTC in seconds. 729 long utcTimeSeconds = loc.getTime() / 1000; 730 mParameters.set(PARM_GPS_TIMESTAMP, 731 String.valueOf(utcTimeSeconds)); 732 } 733 } else { 734 loc = null; 735 } 736 } 737 738 mCameraDevice.setParameters(mParameters); 739 740 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 741 new JpegPictureCallback(loc)); 742 mPreviewing = false; 743 } 744 745 public void onSnap() { 746 // If we are already in the middle of taking a snapshot then ignore. 747 if (mPausing || mStatus == SNAPSHOT_IN_PROGRESS) { 748 return; 749 } 750 mCaptureStartTime = System.currentTimeMillis(); 751 752 // Don't check the filesystem here, we can't afford the latency. 753 // Instead, check the cached value which was calculated when the 754 // preview was restarted. 755 if (mPicturesRemaining < 1) { 756 updateStorageHint(mPicturesRemaining); 757 return; 758 } 759 760 mStatus = SNAPSHOT_IN_PROGRESS; 761 762 mImageCapture.initiate(); 763 } 764 765 private void clearLastBitmap() { 766 if (mCaptureOnlyBitmap != null) { 767 mCaptureOnlyBitmap.recycle(); 768 mCaptureOnlyBitmap = null; 769 } 770 } 771 } 772 773 private void setLastPictureThumb(byte[] data, Uri uri) { 774 BitmapFactory.Options options = new BitmapFactory.Options(); 775 options.inSampleSize = 16; 776 Bitmap lastPictureThumb = 777 BitmapFactory.decodeByteArray(data, 0, data.length, options); 778 mThumbController.setData(uri, lastPictureThumb); 779 } 780 781 private static String createName(long dateTaken) { 782 return DateFormat.format("yyyy-MM-dd kk.mm.ss", dateTaken).toString(); 783 } 784 785 public static Matrix getDisplayMatrix(Bitmap b, ImageView v) { 786 Matrix m = new Matrix(); 787 float bw = b.getWidth(); 788 float bh = b.getHeight(); 789 float vw = v.getWidth(); 790 float vh = v.getHeight(); 791 float scale, x, y; 792 if (bw * vh > vw * bh) { 793 scale = vh / bh; 794 x = (vw - scale * bw) * 0.5F; 795 y = 0; 796 } else { 797 scale = vw / bw; 798 x = 0; 799 y = (vh - scale * bh) * 0.5F; 800 } 801 m.setScale(scale, scale, 0.5F, 0.5F); 802 m.postTranslate(x, y); 803 return m; 804 } 805 806 @Override 807 public void onCreate(Bundle icicle) { 808 super.onCreate(icicle); 809 810 /* 811 * To reduce startup time, we open camera device in another thread. 812 * We make sure the camera is opened at the end of onCreate. 813 */ 814 Thread openCameraThread = new Thread(new Runnable() { 815 public void run() { 816 mCameraDevice = CameraHolder.instance().open(); 817 } 818 }); 819 openCameraThread.start(); 820 821 mPreferences = PreferenceManager.getDefaultSharedPreferences(this); 822 823 Window win = getWindow(); 824 win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 825 setContentView(R.layout.camera); 826 827 mSurfaceView = (VideoPreview) findViewById(R.id.camera_preview); 828 829 // don't set mSurfaceHolder here. We have it set ONLY within 830 // surfaceChanged / surfaceDestroyed, other parts of the code 831 // assume that when it is set, the surface is also set. 832 SurfaceHolder holder = mSurfaceView.getHolder(); 833 holder.addCallback(this); 834 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 835 836 mIsImageCaptureIntent = isImageCaptureIntent(); 837 getLayoutInflater().inflate( 838 R.layout.button_bar, (ViewGroup) findViewById(R.id.camera)); 839 840 // Make sure the services are loaded. 841 try { 842 openCameraThread.join(); 843 } catch (InterruptedException ex) { 844 // ignore 845 } 846 } 847 848 @Override 849 public void onStart() { 850 super.onStart(); 851 852 Thread t = new Thread(new Runnable() { 853 public void run() { 854 final boolean storageOK = calculatePicturesRemaining() > 0; 855 if (!storageOK) { 856 mHandler.post(new Runnable() { 857 public void run() { 858 updateStorageHint(mPicturesRemaining); 859 } 860 }); 861 } 862 } 863 }); 864 t.start(); 865 } 866 867 public void onClick(View v) { 868 switch (v.getId()) { 869 case R.id.video_button: 870 if (isCameraIdle()) { 871 MenuHelper.gotoVideoMode(this); 872 } 873 break; 874 case R.id.review_button: 875 if (isCameraIdle()) { 876 // Make sure image storing has completed before viewing 877 // last image. 878 waitForStoreImageThread(); 879 viewLastImage(); 880 } 881 break; 882 case R.id.attach: 883 doAttach(); 884 break; 885 case R.id.cancel: 886 doCancel(); 887 } 888 } 889 890 private void doAttach() { 891 if (mPausing) { 892 return; 893 } 894 Bitmap bitmap = mImageCapture.getLastBitmap(); 895 896 String cropValue = null; 897 Uri saveUri = null; 898 899 Bundle myExtras = getIntent().getExtras(); 900 if (myExtras != null) { 901 saveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 902 cropValue = myExtras.getString("crop"); 903 } 904 905 906 if (cropValue == null) { 907 // First handle the no crop case -- just return the value. If the 908 // caller specifies a "save uri" then write the data to it's 909 // stream. Otherwise, pass back a scaled down version of the bitmap 910 // directly in the extras. 911 if (saveUri != null) { 912 OutputStream outputStream = null; 913 try { 914 outputStream = mContentResolver.openOutputStream(saveUri); 915 bitmap.compress(Bitmap.CompressFormat.JPEG, 75, 916 outputStream); 917 outputStream.close(); 918 919 setResult(RESULT_OK); 920 finish(); 921 } catch (IOException ex) { 922 // ignore exception 923 } finally { 924 if (outputStream != null) { 925 try { 926 outputStream.close(); 927 } catch (IOException ex) { 928 // ignore exception 929 } 930 } 931 } 932 } else { 933 float scale = .5F; 934 Matrix m = new Matrix(); 935 m.setScale(scale, scale); 936 937 bitmap = Bitmap.createBitmap(bitmap, 0, 0, 938 bitmap.getWidth(), 939 bitmap.getHeight(), 940 m, true); 941 942 setResult(RESULT_OK, 943 new Intent("inline-data").putExtra("data", bitmap)); 944 finish(); 945 } 946 } else { 947 // Save the image to a temp file and invoke the cropper 948 Uri tempUri = null; 949 FileOutputStream tempStream = null; 950 try { 951 File path = getFileStreamPath(sTempCropFilename); 952 path.delete(); 953 tempStream = openFileOutput(sTempCropFilename, 0); 954 bitmap.compress(Bitmap.CompressFormat.JPEG, 75, tempStream); 955 tempStream.close(); 956 tempUri = Uri.fromFile(path); 957 } catch (FileNotFoundException ex) { 958 setResult(Activity.RESULT_CANCELED); 959 finish(); 960 return; 961 } catch (IOException ex) { 962 setResult(Activity.RESULT_CANCELED); 963 finish(); 964 return; 965 } finally { 966 if (tempStream != null) { 967 try { 968 tempStream.close(); 969 } catch (IOException ex) { 970 // ignore exception 971 } 972 } 973 } 974 975 Bundle newExtras = new Bundle(); 976 if (cropValue.equals("circle")) { 977 newExtras.putString("circleCrop", "true"); 978 } 979 if (saveUri != null) { 980 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, saveUri); 981 } else { 982 newExtras.putBoolean("return-data", true); 983 } 984 985 Intent cropIntent = new Intent(); 986 cropIntent.setClass(Camera.this, CropImage.class); 987 cropIntent.setData(tempUri); 988 cropIntent.putExtras(newExtras); 989 990 startActivityForResult(cropIntent, CROP_MSG); 991 } 992 } 993 994 private void doCancel() { 995 setResult(RESULT_CANCELED, new Intent()); 996 finish(); 997 } 998 999 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1000 if (mPausing) { 1001 return; 1002 } 1003 switch (button.getId()) { 1004 case R.id.camera_button: 1005 if (mStoreImageThread == null) { 1006 doFocus(pressed); 1007 } else { 1008 Toast.makeText(Camera.this, 1009 getResources().getString(R.string.wait), 1010 Toast.LENGTH_SHORT); 1011 } 1012 break; 1013 } 1014 } 1015 1016 public void onShutterButtonClick(ShutterButton button) { 1017 if (mPausing) { 1018 return; 1019 } 1020 switch (button.getId()) { 1021 case R.id.camera_button: 1022 if (mIsImageCaptureIntent 1023 && mPostCaptureAlert.getVisibility() == View.VISIBLE) { 1024 // User was reviewing the capture image. Hide the action 1025 // items and start the preview now. 1026 hidePostCaptureAlert(); 1027 restartPreview(); 1028 } else if (mStoreImageThread == null) { 1029 // Take a picture. 1030 doSnap(); 1031 } else { 1032 Toast.makeText(Camera.this, 1033 getResources().getString(R.string.wait), 1034 Toast.LENGTH_SHORT); 1035 } 1036 break; 1037 } 1038 } 1039 1040 private void updateStorageHint() { 1041 updateStorageHint(MenuHelper.calculatePicturesRemaining()); 1042 } 1043 1044 private OnScreenHint mStorageHint; 1045 1046 private void updateStorageHint(int remaining) { 1047 String noStorageText = null; 1048 1049 if (remaining == MenuHelper.NO_STORAGE_ERROR) { 1050 String state = Environment.getExternalStorageState(); 1051 if (state == Environment.MEDIA_CHECKING) { 1052 noStorageText = getString(R.string.preparing_sd); 1053 } else { 1054 noStorageText = getString(R.string.no_storage); 1055 } 1056 } else if (remaining < 1) { 1057 noStorageText = getString(R.string.not_enough_space); 1058 } 1059 1060 if (noStorageText != null) { 1061 if (mStorageHint == null) { 1062 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1063 } else { 1064 mStorageHint.setText(noStorageText); 1065 } 1066 mStorageHint.show(); 1067 } else if (mStorageHint != null) { 1068 mStorageHint.cancel(); 1069 mStorageHint = null; 1070 } 1071 } 1072 1073 void installIntentFilter() { 1074 // install an intent filter to receive SD card related events. 1075 IntentFilter intentFilter = 1076 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1077 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1078 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED); 1079 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1080 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1081 intentFilter.addDataScheme("file"); 1082 registerReceiver(mReceiver, intentFilter); 1083 mDidRegister = true; 1084 } 1085 1086 void initializeFocusTone() { 1087 // Initialize focus tone generator. 1088 try { 1089 mFocusToneGenerator = new ToneGenerator( 1090 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1091 } catch (Throwable ex) { 1092 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1093 mFocusToneGenerator = null; 1094 } 1095 } 1096 1097 void readPreference() { 1098 mRecordLocation = mPreferences.getBoolean( 1099 "pref_camera_recordlocation_key", false); 1100 mFocusMode = mPreferences.getString( 1101 CameraSettings.KEY_FOCUS_MODE, 1102 getString(R.string.pref_camera_focusmode_default)); 1103 } 1104 1105 @Override 1106 public void onResume() { 1107 super.onResume(); 1108 1109 mPausing = false; 1110 mJpegPictureCallbackTime = 0; 1111 mImageCapture = new ImageCapture(); 1112 1113 if (mSurfaceHolder != null) { 1114 // If surface holder is created, start the preview now. Otherwise, 1115 // wait until surfaceChanged. 1116 mSurfaceView.setAspectRatio(VideoPreview.DONT_CARE); 1117 startPreview(); 1118 1119 // If first time initialization is not finished, put it in the 1120 // message queue. 1121 if (!mFirstTimeInitialized) { 1122 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1123 } else { 1124 initializeSecondTime(); 1125 } 1126 } 1127 1128 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 1129 } 1130 1131 private static ImageManager.DataLocation dataLocation() { 1132 return ImageManager.DataLocation.EXTERNAL; 1133 } 1134 1135 private void waitForStoreImageThread() { 1136 if (mStoreImageThread != null) { 1137 try { 1138 mStoreImageThread.join(); 1139 } catch (InterruptedException ex) { 1140 // Ignore this exception. 1141 Log.e(TAG, "", ex); 1142 } finally { 1143 mStoreImageThread = null; 1144 } 1145 } 1146 } 1147 1148 @Override 1149 protected void onPause() { 1150 mPausing = true; 1151 stopPreview(); 1152 // Close the camera now because other activities may need to use it. 1153 closeCamera(); 1154 1155 waitForStoreImageThread(); 1156 1157 if (mFirstTimeInitialized) { 1158 mOrientationListener.disable(); 1159 mGpsIndicator.setVisibility(View.INVISIBLE); 1160 if (!mIsImageCaptureIntent) { 1161 mThumbController.storeData( 1162 ImageManager.getLastImageThumbPath()); 1163 } 1164 hidePostCaptureAlert(); 1165 } 1166 1167 if (mDidRegister) { 1168 unregisterReceiver(mReceiver); 1169 mDidRegister = false; 1170 } 1171 stopReceivingLocationUpdates(); 1172 1173 if (mFocusToneGenerator != null) { 1174 mFocusToneGenerator.release(); 1175 mFocusToneGenerator = null; 1176 } 1177 1178 if (mStorageHint != null) { 1179 mStorageHint.cancel(); 1180 mStorageHint = null; 1181 } 1182 1183 // If we are in an image capture intent and has taken 1184 // a picture, we just clear it in onPause. 1185 mImageCapture.clearLastBitmap(); 1186 mImageCapture = null; 1187 1188 // This is necessary to make the ZoomButtonsController unregister 1189 // its configuration change receiver. 1190 if (mZoomButtons != null) { 1191 mZoomButtons.setVisible(false); 1192 } 1193 1194 // Remove the messages in the event queue. 1195 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 1196 mHandler.removeMessages(RESTART_PREVIEW); 1197 mHandler.removeMessages(FIRST_TIME_INIT); 1198 mHandler.removeMessages(STORE_IMAGE_DONE); 1199 1200 super.onPause(); 1201 } 1202 1203 @Override 1204 protected void onActivityResult( 1205 int requestCode, int resultCode, Intent data) { 1206 switch (requestCode) { 1207 case CROP_MSG: { 1208 Intent intent = new Intent(); 1209 if (data != null) { 1210 Bundle extras = data.getExtras(); 1211 if (extras != null) { 1212 intent.putExtras(extras); 1213 } 1214 } 1215 setResult(resultCode, intent); 1216 finish(); 1217 1218 File path = getFileStreamPath(sTempCropFilename); 1219 path.delete(); 1220 1221 break; 1222 } 1223 } 1224 } 1225 1226 private void autoFocus() { 1227 // Initiate autofocus only when preview is started and snapshot is not 1228 // in progress. 1229 if (isCameraIdle() && mPreviewing) { 1230 Log.v(TAG, "Start autofocus."); 1231 if (mZoomButtons != null) mZoomButtons.setVisible(false); 1232 mFocusStartTime = System.currentTimeMillis(); 1233 mFocusState = FOCUSING; 1234 updateFocusIndicator(); 1235 mCameraDevice.autoFocus(mAutoFocusCallback); 1236 } 1237 } 1238 1239 private void clearFocusState() { 1240 mFocusState = FOCUS_NOT_STARTED; 1241 updateFocusIndicator(); 1242 } 1243 1244 private void updateFocusIndicator() { 1245 if (mFocusRectangle == null) return; 1246 1247 if (mFocusState == FOCUSING || mFocusState == FOCUSING_SNAP_ON_FINISH) { 1248 mFocusRectangle.showStart(); 1249 } else if (mFocusState == FOCUS_SUCCESS) { 1250 mFocusRectangle.showSuccess(); 1251 } else if (mFocusState == FOCUS_FAIL) { 1252 mFocusRectangle.showFail(); 1253 } else { 1254 mFocusRectangle.clear(); 1255 } 1256 } 1257 1258 @Override 1259 public boolean onKeyDown(int keyCode, KeyEvent event) { 1260 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 1261 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1262 1263 switch (keyCode) { 1264 case KeyEvent.KEYCODE_BACK: 1265 if (!isCameraIdle()) { 1266 // ignore backs while we're taking a picture 1267 return true; 1268 } 1269 break; 1270 case KeyEvent.KEYCODE_FOCUS: 1271 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1272 doFocus(true); 1273 } 1274 return true; 1275 case KeyEvent.KEYCODE_CAMERA: 1276 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1277 doSnap(); 1278 } 1279 return true; 1280 case KeyEvent.KEYCODE_DPAD_CENTER: 1281 // If we get a dpad center event without any focused view, move 1282 // the focus to the shutter button and press it. 1283 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1284 // Start auto-focus immediately to reduce shutter lag. After 1285 // the shutter button gets the focus, doFocus() will be 1286 // called again but it is fine. 1287 doFocus(true); 1288 if (mShutterButton.isInTouchMode()) { 1289 mShutterButton.requestFocusFromTouch(); 1290 } else { 1291 mShutterButton.requestFocus(); 1292 } 1293 mShutterButton.setPressed(true); 1294 } 1295 return true; 1296 } 1297 1298 return super.onKeyDown(keyCode, event); 1299 } 1300 1301 @Override 1302 public boolean onKeyUp(int keyCode, KeyEvent event) { 1303 switch (keyCode) { 1304 case KeyEvent.KEYCODE_FOCUS: 1305 if (mFirstTimeInitialized) { 1306 doFocus(false); 1307 } 1308 return true; 1309 } 1310 return super.onKeyUp(keyCode, event); 1311 } 1312 1313 @Override 1314 public boolean onTouchEvent(MotionEvent event) { 1315 switch (event.getAction()) { 1316 case MotionEvent.ACTION_DOWN: 1317 // Show zoom buttons only when preview is started and snapshot 1318 // is not in progress. mZoomButtons may be null if it is not 1319 // initialized. 1320 if (!mPausing && isCameraIdle() && mPreviewing 1321 && mZoomButtons != null) { 1322 mZoomButtons.setVisible(true); 1323 } 1324 return true; 1325 } 1326 return super.onTouchEvent(event); 1327 } 1328 1329 private void doSnap() { 1330 // If the user has half-pressed the shutter and focus is completed, we 1331 // can take the photo right away. If the focus mode is infinity, we can 1332 // also take the photo. 1333 if (mFocusMode.equals(getString( 1334 R.string.pref_camera_focusmode_value_infinity)) 1335 || (mFocusState == FOCUS_SUCCESS || mFocusState == FOCUS_FAIL)) { 1336 if (mZoomButtons != null) mZoomButtons.setVisible(false); 1337 mImageCapture.onSnap(); 1338 } else if (mFocusState == FOCUSING) { 1339 // Half pressing the shutter (i.e. the focus button event) will 1340 // already have requested AF for us, so just request capture on 1341 // focus here. 1342 mFocusState = FOCUSING_SNAP_ON_FINISH; 1343 } else if (mFocusState == FOCUS_NOT_STARTED) { 1344 // Focus key down event is dropped for some reasons. Just ignore. 1345 } 1346 } 1347 1348 private void doFocus(boolean pressed) { 1349 // Do the focus if the mode is auto. No focus needed in infinity mode. 1350 if (mFocusMode.equals(getString( 1351 R.string.pref_camera_focusmode_value_auto))) { 1352 if (pressed) { // Focus key down. 1353 autoFocus(); 1354 } else { // Focus key up. 1355 if (mFocusState != FOCUSING_SNAP_ON_FINISH) { 1356 // User releases half-pressed focus key. 1357 clearFocusState(); 1358 } 1359 } 1360 } 1361 } 1362 1363 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1364 // Make sure we have a surface in the holder before proceeding. 1365 if (holder.getSurface() == null) { 1366 Log.d(TAG, "holder.getSurface() == null"); 1367 return; 1368 } 1369 1370 mSurfaceHolder = holder; 1371 mViewFinderWidth = w; 1372 mViewFinderHeight = h; 1373 1374 // Sometimes surfaceChanged is called after onPause. Ignore it. 1375 if (mPausing) return; 1376 1377 // Start the preview. 1378 startPreview(); 1379 1380 // If first time initialization is not finished, send a message to do 1381 // it later. We want to finish surfaceChanged as soon as possible to let 1382 // user see preview first. 1383 if (!mFirstTimeInitialized) { 1384 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1385 } else { 1386 initializeSecondTime(); 1387 } 1388 } 1389 1390 public void surfaceCreated(SurfaceHolder holder) { 1391 } 1392 1393 public void surfaceDestroyed(SurfaceHolder holder) { 1394 stopPreview(); 1395 mSurfaceHolder = null; 1396 } 1397 1398 private void closeCamera() { 1399 if (mCameraDevice != null) { 1400 CameraHolder.instance().release(); 1401 mCameraDevice = null; 1402 mPreviewing = false; 1403 } 1404 } 1405 1406 private boolean ensureCameraDevice() { 1407 if (mCameraDevice == null) { 1408 mCameraDevice = CameraHolder.instance().open(); 1409 } 1410 return mCameraDevice != null; 1411 } 1412 1413 private void updateLastImage() { 1414 IImageList list = ImageManager.allImages( 1415 mContentResolver, 1416 dataLocation(), 1417 ImageManager.INCLUDE_IMAGES, 1418 ImageManager.SORT_ASCENDING, 1419 ImageManager.CAMERA_IMAGE_BUCKET_ID); 1420 int count = list.getCount(); 1421 if (count > 0) { 1422 IImage image = list.getImageAt(count - 1); 1423 Uri uri = image.fullSizeImageUri(); 1424 mThumbController.setData(uri, image.miniThumbBitmap()); 1425 } else { 1426 mThumbController.setData(null, null); 1427 } 1428 list.deactivate(); 1429 } 1430 1431 private void restartPreview() { 1432 // make sure the surfaceview fills the whole screen when previewing 1433 mSurfaceView.setAspectRatio(VideoPreview.DONT_CARE); 1434 startPreview(); 1435 1436 // Calculate this in advance of each shot so we don't add to shutter 1437 // latency. It's true that someone else could write to the SD card in 1438 // the mean time and fill it, but that could have happened between the 1439 // shutter press and saving the JPEG too. 1440 calculatePicturesRemaining(); 1441 } 1442 1443 private void startPreview() { 1444 if (mPausing) return; 1445 1446 if (!ensureCameraDevice()) return; 1447 1448 if (mSurfaceHolder == null) return; 1449 1450 if (isFinishing()) return; 1451 1452 // If we're previewing already, stop the preview first (this will blank 1453 // the screen). 1454 if (mPreviewing) stopPreview(); 1455 1456 // this blanks the screen if the surface changed, no-op otherwise 1457 try { 1458 mCameraDevice.setPreviewDisplay(mSurfaceHolder); 1459 } catch (Throwable ex) { 1460 closeCamera(); 1461 throw new RuntimeException("setPreviewDisplay failed", ex); 1462 } 1463 1464 setCameraParameter(); 1465 1466 final long wallTimeStart = SystemClock.elapsedRealtime(); 1467 final long threadTimeStart = Debug.threadCpuTimeNanos(); 1468 1469 // Set one shot preview callback for latency measurement. 1470 mCameraDevice.setOneShotPreviewCallback(mOneShotPreviewCallback); 1471 1472 try { 1473 Log.v(TAG, "startPreview"); 1474 mCameraDevice.startPreview(); 1475 } catch (Throwable ex) { 1476 closeCamera(); 1477 throw new RuntimeException("startPreview failed", ex); 1478 } 1479 mPreviewing = true; 1480 mStatus = IDLE; 1481 1482 long threadTimeEnd = Debug.threadCpuTimeNanos(); 1483 long wallTimeEnd = SystemClock.elapsedRealtime(); 1484 if ((wallTimeEnd - wallTimeStart) > 3000) { 1485 Log.w(TAG, "startPreview() to " + (wallTimeEnd - wallTimeStart) 1486 + " ms. Thread time was" 1487 + (threadTimeEnd - threadTimeStart) / 1000000 + " ms."); 1488 } 1489 } 1490 1491 private void stopPreview() { 1492 if (mCameraDevice != null && mPreviewing) { 1493 Log.v(TAG, "stopPreview"); 1494 mCameraDevice.stopPreview(); 1495 } 1496 mPreviewing = false; 1497 // If auto focus was in progress, it would have been canceled. 1498 clearFocusState(); 1499 } 1500 1501 private void setCameraParameter() { 1502 // request the preview size, the hardware may not honor it, 1503 // if we depended on it we would have to query the size again 1504 mParameters = mCameraDevice.getParameters(); 1505 mParameters.setPreviewSize(mViewFinderWidth, mViewFinderHeight); 1506 1507 // Set picture size parameter. 1508 String pictureSize = mPreferences.getString( 1509 CameraSettings.KEY_PICTURE_SIZE, 1510 getString(R.string.pref_camera_picturesize_default)); 1511 mParameters.set(PARM_PICTURE_SIZE, pictureSize); 1512 1513 // Set JPEG quality parameter. 1514 String jpegQuality = mPreferences.getString( 1515 CameraSettings.KEY_JPEG_QUALITY, 1516 getString(R.string.pref_camera_jpegquality_default)); 1517 mParameters.set(PARM_JPEG_QUALITY, jpegQuality); 1518 1519 // Set zoom. 1520 if (mZoomValues != null) { 1521 mParameters.set(PARM_ZOOM, mZoomValues[mZoomIndex]); 1522 } 1523 1524 mCameraDevice.setParameters(mParameters); 1525 } 1526 1527 void gotoGallery() { 1528 MenuHelper.gotoCameraImageGallery(this); 1529 } 1530 1531 private void viewLastImage() { 1532 if (mThumbController.isUriValid()) { 1533 Uri targetUri = mThumbController.getUri(); 1534 targetUri = targetUri.buildUpon().appendQueryParameter( 1535 "bucketId", ImageManager.CAMERA_IMAGE_BUCKET_ID).build(); 1536 Intent intent = new Intent(Intent.ACTION_VIEW, targetUri); 1537 intent.putExtra(MediaStore.EXTRA_FULL_SCREEN, true); 1538 intent.putExtra(MediaStore.EXTRA_SHOW_ACTION_ICONS, true); 1539 intent.putExtra("com.android.camera.ReviewMode", true); 1540 try { 1541 startActivity(intent); 1542 } catch (ActivityNotFoundException ex) { 1543 Log.e(TAG, "review image fail", ex); 1544 } 1545 } else { 1546 Log.e(TAG, "Can't view last image."); 1547 } 1548 } 1549 1550 private void startReceivingLocationUpdates() { 1551 if (mLocationManager != null) { 1552 try { 1553 mLocationManager.requestLocationUpdates( 1554 LocationManager.NETWORK_PROVIDER, 1555 1000, 1556 0F, 1557 mLocationListeners[1]); 1558 } catch (java.lang.SecurityException ex) { 1559 Log.i(TAG, "fail to request location update, ignore", ex); 1560 } catch (IllegalArgumentException ex) { 1561 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1562 } 1563 try { 1564 mLocationManager.requestLocationUpdates( 1565 LocationManager.GPS_PROVIDER, 1566 1000, 1567 0F, 1568 mLocationListeners[0]); 1569 } catch (java.lang.SecurityException ex) { 1570 Log.i(TAG, "fail to request location update, ignore", ex); 1571 } catch (IllegalArgumentException ex) { 1572 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1573 } 1574 } 1575 } 1576 1577 private void stopReceivingLocationUpdates() { 1578 if (mLocationManager != null) { 1579 for (int i = 0; i < mLocationListeners.length; i++) { 1580 try { 1581 mLocationManager.removeUpdates(mLocationListeners[i]); 1582 } catch (Exception ex) { 1583 Log.i(TAG, "fail to remove location listners, ignore", ex); 1584 } 1585 } 1586 } 1587 } 1588 1589 private Location getCurrentLocation() { 1590 // go in best to worst order 1591 for (int i = 0; i < mLocationListeners.length; i++) { 1592 Location l = mLocationListeners[i].current(); 1593 if (l != null) return l; 1594 } 1595 return null; 1596 } 1597 1598 private boolean isCameraIdle() { 1599 return mStatus == IDLE && mFocusState == FOCUS_NOT_STARTED; 1600 } 1601 1602 private boolean isImageCaptureIntent() { 1603 String action = getIntent().getAction(); 1604 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 1605 } 1606 1607 private void showPostCaptureAlert() { 1608 if (mIsImageCaptureIntent) { 1609 mPostCaptureAlert.setVisibility(View.VISIBLE); 1610 int[] pickIds = {R.id.attach, R.id.cancel}; 1611 for (int id : pickIds) { 1612 View view = mPostCaptureAlert.findViewById(id); 1613 view.setOnClickListener(this); 1614 Animation animation = new AlphaAnimation(0F, 1F); 1615 animation.setDuration(500); 1616 view.setAnimation(animation); 1617 } 1618 } 1619 } 1620 1621 private void hidePostCaptureAlert() { 1622 if (mIsImageCaptureIntent) { 1623 mPostCaptureAlert.setVisibility(View.INVISIBLE); 1624 } 1625 } 1626 1627 private int calculatePicturesRemaining() { 1628 mPicturesRemaining = MenuHelper.calculatePicturesRemaining(); 1629 return mPicturesRemaining; 1630 } 1631 1632 @Override 1633 public boolean onPrepareOptionsMenu(Menu menu) { 1634 super.onPrepareOptionsMenu(menu); 1635 1636 for (int i = 1; i <= MenuHelper.MENU_ITEM_MAX; i++) { 1637 menu.setGroupVisible(i, false); 1638 } 1639 1640 // Only show the menu when camera is idle. 1641 if (isCameraIdle()) { 1642 menu.setGroupVisible(MenuHelper.GENERIC_ITEM, true); 1643 menu.setGroupVisible(MenuHelper.IMAGE_MODE_ITEM, true); 1644 } 1645 1646 return true; 1647 } 1648 1649 @Override 1650 public boolean onCreateOptionsMenu(Menu menu) { 1651 super.onCreateOptionsMenu(menu); 1652 1653 if (mIsImageCaptureIntent) { 1654 // No options menu for attach mode. 1655 return false; 1656 } else { 1657 addBaseMenuItems(menu); 1658 } 1659 return true; 1660 } 1661 1662 private void addBaseMenuItems(Menu menu) { 1663 MenuHelper.addSwitchModeMenuItem(menu, this, true); 1664 { 1665 MenuItem gallery = menu.add( 1666 MenuHelper.IMAGE_MODE_ITEM, MENU_GALLERY_PHOTOS, 0, 1667 R.string.camera_gallery_photos_text) 1668 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1669 public boolean onMenuItemClick(MenuItem item) { 1670 gotoGallery(); 1671 return true; 1672 } 1673 }); 1674 gallery.setIcon(android.R.drawable.ic_menu_gallery); 1675 mGalleryItems.add(gallery); 1676 } 1677 { 1678 MenuItem gallery = menu.add( 1679 MenuHelper.VIDEO_MODE_ITEM, MENU_GALLERY_VIDEOS, 0, 1680 R.string.camera_gallery_photos_text) 1681 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1682 public boolean onMenuItemClick(MenuItem item) { 1683 gotoGallery(); 1684 return true; 1685 } 1686 }); 1687 gallery.setIcon(android.R.drawable.ic_menu_gallery); 1688 mGalleryItems.add(gallery); 1689 } 1690 1691 MenuItem item = menu.add(MenuHelper.GENERIC_ITEM, MENU_SETTINGS, 1692 0, R.string.settings) 1693 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1694 public boolean onMenuItemClick(MenuItem item) { 1695 // Keep the camera instance for a while. 1696 // This avoids re-opening the camera and saves time. 1697 CameraHolder.instance().keep(); 1698 1699 Intent intent = new Intent(); 1700 intent.setClass(Camera.this, CameraSettings.class); 1701 startActivity(intent); 1702 return true; 1703 } 1704 }); 1705 item.setIcon(android.R.drawable.ic_menu_preferences); 1706 } 1707} 1708 1709class FocusRectangle extends View { 1710 1711 @SuppressWarnings("unused") 1712 private static final String TAG = "FocusRectangle"; 1713 1714 public FocusRectangle(Context context, AttributeSet attrs) { 1715 super(context, attrs); 1716 } 1717 1718 private void setDrawable(int resid) { 1719 BitmapDrawable d = (BitmapDrawable) getResources().getDrawable(resid); 1720 // We do this because we don't want the bitmap to be scaled. 1721 d.setGravity(Gravity.CENTER); 1722 setBackgroundDrawable(d); 1723 } 1724 1725 public void showStart() { 1726 setDrawable(R.drawable.frame_autofocus_rectangle); 1727 } 1728 1729 public void showSuccess() { 1730 setDrawable(R.drawable.frame_focused_rectangle); 1731 } 1732 1733 public void showFail() { 1734 setDrawable(R.drawable.frame_nofocus_rectangle); 1735 } 1736 1737 public void clear() { 1738 setBackgroundDrawable(null); 1739 } 1740} 1741