Camera.java revision dad4b187eec436a2716aca5af31f23ce5de95f39
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.hardware.Camera.PictureCallback; 35import android.location.Location; 36import android.location.LocationManager; 37import android.location.LocationProvider; 38import android.media.AudioManager; 39import android.media.ToneGenerator; 40import android.net.Uri; 41import android.os.Bundle; 42import android.os.Debug; 43import android.os.Environment; 44import android.os.Handler; 45import android.os.Message; 46import android.os.SystemClock; 47import android.preference.PreferenceManager; 48import android.provider.MediaStore; 49import android.text.format.DateFormat; 50import android.util.AttributeSet; 51import android.util.Log; 52import android.view.KeyEvent; 53import android.view.Menu; 54import android.view.MenuItem; 55import android.view.MotionEvent; 56import android.view.OrientationEventListener; 57import android.view.SurfaceHolder; 58import android.view.View; 59import android.view.ViewGroup; 60import android.view.Window; 61import android.view.WindowManager; 62import android.view.MenuItem.OnMenuItemClickListener; 63import android.view.animation.AlphaAnimation; 64import android.view.animation.Animation; 65import android.widget.ImageView; 66import android.widget.Toast; 67import android.widget.ZoomButtonsController; 68 69import java.io.File; 70import java.io.FileNotFoundException; 71import java.io.FileOutputStream; 72import java.io.IOException; 73import java.io.OutputStream; 74import java.util.ArrayList; 75import java.util.StringTokenizer; 76 77/** 78 * Activity of the Camera which used to see preview and take pictures. 79 */ 80public class Camera extends Activity implements View.OnClickListener, 81 ShutterButton.OnShutterButtonListener, SurfaceHolder.Callback { 82 83 private static final String TAG = "camera"; 84 85 private static final int CROP_MSG = 1; 86 private static final int FIRST_TIME_INIT = 2; 87 private static final int RESTART_PREVIEW = 3; 88 private static final int CLEAR_SCREEN_DELAY = 4; 89 private static final int STORE_IMAGE_DONE = 5; 90 91 private static final int SCREEN_DELAY = 2 * 60 * 1000; 92 private static final int FOCUS_BEEP_VOLUME = 100; 93 94 public static final int MENU_SWITCH_TO_VIDEO = 0; 95 public static final int MENU_SWITCH_TO_CAMERA = 1; 96 public static final int MENU_FLASH_SETTING = 2; 97 public static final int MENU_FLASH_AUTO = 3; 98 public static final int MENU_FLASH_ON = 4; 99 public static final int MENU_FLASH_OFF = 5; 100 public static final int MENU_SETTINGS = 6; 101 public static final int MENU_GALLERY_PHOTOS = 7; 102 public static final int MENU_GALLERY_VIDEOS = 8; 103 public static final int MENU_SAVE_SELECT_PHOTOS = 30; 104 public static final int MENU_SAVE_NEW_PHOTO = 31; 105 public static final int MENU_SAVE_GALLERY_PHOTO = 34; 106 public static final int MENU_SAVE_GALLERY_VIDEO_PHOTO = 35; 107 public static final int MENU_SAVE_CAMERA_DONE = 36; 108 public static final int MENU_SAVE_CAMERA_VIDEO_DONE = 37; 109 110 private android.hardware.Camera.Parameters mParameters; 111 private int mZoomIndex = 0; // The index of the current zoom value. 112 private String[] mZoomValues; // All possible zoom values. 113 114 // The parameter strings to communicate with camera driver. 115 public static final String PARM_ZOOM = "zoom"; 116 public static final String PARM_PICTURE_SIZE = "picture-size"; 117 public static final String PARM_JPEG_QUALITY = "jpeg-quality"; 118 public static final String PARM_ROTATION = "rotation"; 119 public static final String PARM_GPS_LATITUDE = "gps-latitude"; 120 public static final String PARM_GPS_LONGITUDE = "gps-longitude"; 121 public static final String PARM_GPS_ALTITUDE = "gps-altitude"; 122 public static final String PARM_GPS_TIMESTAMP = "gps-timestamp"; 123 public static final String SUPPORTED_ZOOM = "zoom-values"; 124 public static final String SUPPORTED_PICTURE_SIZE = "picture-size-values"; 125 126 private OrientationEventListener mOrientationListener; 127 private int mLastOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 128 private SharedPreferences mPreferences; 129 130 private static final int IDLE = 1; 131 private static final int SNAPSHOT_IN_PROGRESS = 2; 132 133 private int mStatus = IDLE; 134 private static final String sTempCropFilename = "crop-temp"; 135 136 private android.hardware.Camera mCameraDevice; 137 private VideoPreview mSurfaceView; 138 private SurfaceHolder mSurfaceHolder = null; 139 private ShutterButton mShutterButton; 140 private FocusRectangle mFocusRectangle; 141 private ImageView mGpsIndicator; 142 private ToneGenerator mFocusToneGenerator; 143 private ZoomButtonsController mZoomButtons; 144 145 // mPostCaptureAlert, mLastPictureButton, mThumbController 146 // are non-null only if isImageCaptureIntent() is true. 147 private View mPostCaptureAlert; 148 private ImageView mLastPictureButton; 149 private ThumbnailController mThumbController; 150 151 private int mViewFinderWidth, mViewFinderHeight; 152 153 private ImageCapture mImageCapture = null; 154 155 private boolean mPreviewing; 156 private boolean mPausing; 157 private boolean mFirstTimeInitialized; 158 private boolean mIsImageCaptureIntent; 159 private boolean mRecordLocation; 160 161 private static final int FOCUS_NOT_STARTED = 0; 162 private static final int FOCUSING = 1; 163 private static final int FOCUSING_SNAP_ON_FINISH = 2; 164 private static final int FOCUS_SUCCESS = 3; 165 private static final int FOCUS_FAIL = 4; 166 private int mFocusState = FOCUS_NOT_STARTED; 167 168 private ContentResolver mContentResolver; 169 private boolean mDidRegister = false; 170 171 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 172 173 private LocationManager mLocationManager = null; 174 175 // Use OneShotPreviewCallback to measure the time between 176 // JpegPictureCallback and preview. 177 private final OneShotPreviewCallback mOneShotPreviewCallback = 178 new OneShotPreviewCallback(); 179 private final ShutterCallback mShutterCallback = new ShutterCallback(); 180 private final RawPictureCallback mRawPictureCallback = 181 new RawPictureCallback(); 182 private final AutoFocusCallback mAutoFocusCallback = 183 new AutoFocusCallback(); 184 private long mFocusStartTime; 185 private long mFocusCallbackTime; 186 private long mCaptureStartTime; 187 private long mShutterCallbackTime; 188 private long mRawPictureCallbackTime; 189 private long mJpegPictureCallbackTime; 190 private int mPicturesRemaining; 191 192 //Add the camera latency time 193 public static long mAutoFocusTime; 194 public static long mShutterLag; 195 public static long mShutterAndRawPictureCallbackTime; 196 public static long mJpegPictureCallbackTimeLag; 197 public static long mRawPictureAndJpegPictureCallbackTime; 198 199 // Focus mode. Options are pref_camera_focusmode_entryvalues. 200 private String mFocusMode; 201 202 private Thread mStoreImageThread = null; 203 private final Handler mHandler = new MainHandler(); 204 205 private interface Capturer { 206 Uri getLastCaptureUri(); 207 void onSnap(); 208 } 209 210 /** 211 * This Handler is used to post message back onto the main thread of the 212 * application 213 */ 214 private class MainHandler extends Handler { 215 @Override 216 public void handleMessage(Message msg) { 217 switch (msg.what) { 218 case RESTART_PREVIEW: { 219 restartPreview(); 220 break; 221 } 222 223 case STORE_IMAGE_DONE: { 224 if (!mIsImageCaptureIntent) { 225 setLastPictureThumb((byte[])msg.obj, mImageCapture.getLastCaptureUri()); 226 updateThumbnailButton(); 227 } else { 228 showPostCaptureAlert(); 229 } 230 mStoreImageThread = null; 231 break; 232 } 233 234 case CLEAR_SCREEN_DELAY: { 235 getWindow().clearFlags( 236 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 237 break; 238 } 239 240 case FIRST_TIME_INIT: { 241 initializeFirstTime(); 242 break; 243 } 244 } 245 } 246 } 247 248 // Snapshots can only be taken after this is called. It should be called 249 // once only. We could have done these things in onCreate() but we want to 250 // make preview screen appear as soon as possible. 251 void initializeFirstTime() { 252 if (mFirstTimeInitialized) return; 253 254 // Create orientation listenter. This should be done first because it 255 // takes some time to get first orientation. 256 mOrientationListener = 257 new OrientationEventListener(Camera.this) { 258 @Override 259 public void onOrientationChanged(int orientation) { 260 // We keep the last known orientation. So if the user 261 // first orient the camera then point the camera to 262 // floor/sky, we still have the correct orientation. 263 if (orientation != ORIENTATION_UNKNOWN) { 264 mLastOrientation = orientation; 265 } 266 } 267 }; 268 mOrientationListener.enable(); 269 270 // Initialize location sevice. 271 mLocationManager = (LocationManager) 272 getSystemService(Context.LOCATION_SERVICE); 273 readPreference(); 274 if (mRecordLocation) startReceivingLocationUpdates(); 275 276 // Initialize last picture button. 277 mContentResolver = getContentResolver(); 278 if (!mIsImageCaptureIntent) { 279 findViewById(R.id.camera_switch).setOnClickListener(this); 280 mLastPictureButton = 281 (ImageView) findViewById(R.id.review_thumbnail); 282 mLastPictureButton.setOnClickListener(this); 283 mThumbController = new ThumbnailController( 284 mLastPictureButton, mContentResolver); 285 mThumbController.loadData(ImageManager.getLastImageThumbPath()); 286 // Update last image thumbnail. 287 updateThumbnailButton(); 288 } else { 289 findViewById(R.id.review_thumbnail).setVisibility(View.INVISIBLE); 290 291 ViewGroup cameraView = (ViewGroup) findViewById(R.id.camera); 292 getLayoutInflater().inflate( 293 R.layout.post_picture_panel, cameraView); 294 mPostCaptureAlert = findViewById(R.id.post_picture_panel); 295 } 296 297 // Initialize shutter button. 298 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 299 mShutterButton.setOnShutterButtonListener(this); 300 mShutterButton.setVisibility(View.VISIBLE); 301 302 mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); 303 updateFocusIndicator(); 304 305 // Initialize GPS indicator. 306 mGpsIndicator = (ImageView) findViewById(R.id.gps_indicator); 307 mGpsIndicator.setImageResource(R.drawable.ic_camera_sym_gps); 308 309 ImageManager.ensureOSXCompatibleFolder(); 310 311 calculatePicturesRemaining(); 312 313 installIntentFilter(); 314 315 initializeFocusTone(); 316 317 // Disable zoom until driver is ready. 318 // TODO: enable this. 319 //initializeZoom(); 320 321 mFirstTimeInitialized = true; 322 } 323 324 private void updateThumbnailButton() { 325 if (!mThumbController.isUriValid()) { 326 updateLastImage(); 327 } 328 mThumbController.updateDisplayIfNeeded(); 329 } 330 331 // If the activity is paused and resumed, this method will be called in 332 // onResume. 333 void initializeSecondTime() { 334 // Start orientation listener as soon as possible because it takes 335 // some time to get first orientation. 336 mOrientationListener.enable(); 337 338 // Start location update if needed. 339 readPreference(); 340 if (mRecordLocation) startReceivingLocationUpdates(); 341 342 installIntentFilter(); 343 344 initializeFocusTone(); 345 346 if (!mIsImageCaptureIntent) { 347 updateThumbnailButton(); 348 } 349 } 350 351 private void initializeZoom() { 352 String zoomValuesStr = mParameters.get(SUPPORTED_ZOOM); 353 if (zoomValuesStr == null) return; 354 355 mZoomValues = getZoomValues(zoomValuesStr); 356 if (mZoomValues == null) return; 357 358 mZoomButtons = new ZoomButtonsController(mSurfaceView); 359 mZoomButtons.setAutoDismissed(true); 360 mZoomButtons.setOnZoomListener( 361 new ZoomButtonsController.OnZoomListener() { 362 public void onVisibilityChanged(boolean visible) { 363 if (visible) { 364 updateZoomButtonsEnabled(); 365 } 366 } 367 368 public void onZoom(boolean zoomIn) { 369 if (zoomIn) { 370 zoomIn(); 371 } else { 372 zoomOut(); 373 } 374 updateZoomButtonsEnabled(); 375 } 376 }); 377 } 378 379 private void zoomIn() { 380 if (mZoomIndex < mZoomValues.length - 1) { 381 mZoomIndex++; 382 mParameters.set(PARM_ZOOM, mZoomValues[mZoomIndex]); 383 mCameraDevice.setParameters(mParameters); 384 } 385 } 386 387 private void zoomOut() { 388 if (mZoomIndex > 0) { 389 mZoomIndex--; 390 mParameters.set(PARM_ZOOM, mZoomValues[mZoomIndex]); 391 mCameraDevice.setParameters(mParameters); 392 } 393 } 394 395 private void updateZoomButtonsEnabled() { 396 mZoomButtons.setZoomInEnabled(mZoomIndex < mZoomValues.length - 1); 397 mZoomButtons.setZoomOutEnabled(mZoomIndex > 0); 398 } 399 400 private String[] getZoomValues(String zoomValuesStr) { 401 ArrayList<String> list = new ArrayList<String>(); 402 String[] zoomValues = null; 403 StringTokenizer tokenizer = new StringTokenizer(zoomValuesStr, ","); 404 405 while (tokenizer.hasMoreElements()) { 406 list.add(tokenizer.nextToken()); 407 } 408 if (list.size() > 0) { 409 zoomValues = list.toArray(new String[list.size()]); 410 } 411 return zoomValues; 412 } 413 414 415 LocationListener [] mLocationListeners = new LocationListener[] { 416 new LocationListener(LocationManager.GPS_PROVIDER), 417 new LocationListener(LocationManager.NETWORK_PROVIDER) 418 }; 419 420 421 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 422 @Override 423 public void onReceive(Context context, Intent intent) { 424 String action = intent.getAction(); 425 if (action.equals(Intent.ACTION_MEDIA_MOUNTED)) { 426 // SD card available 427 updateStorageHint(calculatePicturesRemaining()); 428 } else if (action.equals(Intent.ACTION_MEDIA_UNMOUNTED) || 429 action.equals(Intent.ACTION_MEDIA_CHECKING)) { 430 // SD card unavailable 431 mPicturesRemaining = MenuHelper.NO_STORAGE_ERROR; 432 updateStorageHint(mPicturesRemaining); 433 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_STARTED)) { 434 Toast.makeText(Camera.this, 435 getResources().getString(R.string.wait), 5000); 436 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 437 updateStorageHint(); 438 } 439 } 440 }; 441 442 private class LocationListener 443 implements android.location.LocationListener { 444 Location mLastLocation; 445 boolean mValid = false; 446 String mProvider; 447 448 public LocationListener(String provider) { 449 mProvider = provider; 450 mLastLocation = new Location(mProvider); 451 } 452 453 public void onLocationChanged(Location newLocation) { 454 if (newLocation.getLatitude() == 0.0 455 && newLocation.getLongitude() == 0.0) { 456 // Hack to filter out 0.0,0.0 locations 457 return; 458 } 459 // If GPS is available before start camera, we won't get status 460 // update so update GPS indicator when we receive data. 461 if (mRecordLocation 462 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 463 mGpsIndicator.setVisibility(View.VISIBLE); 464 } 465 mLastLocation.set(newLocation); 466 mValid = true; 467 } 468 469 public void onProviderEnabled(String provider) { 470 } 471 472 public void onProviderDisabled(String provider) { 473 mValid = false; 474 } 475 476 public void onStatusChanged( 477 String provider, int status, Bundle extras) { 478 switch(status) { 479 case LocationProvider.OUT_OF_SERVICE: 480 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 481 mValid = false; 482 if (mRecordLocation && 483 LocationManager.GPS_PROVIDER.equals(provider)) { 484 mGpsIndicator.setVisibility(View.INVISIBLE); 485 } 486 break; 487 } 488 } 489 } 490 491 public Location current() { 492 return mValid ? mLastLocation : null; 493 } 494 } 495 496 private final class OneShotPreviewCallback 497 implements android.hardware.Camera.PreviewCallback { 498 public void onPreviewFrame(byte[] data, 499 android.hardware.Camera camera) { 500 long now = System.currentTimeMillis(); 501 if (mJpegPictureCallbackTime != 0) { 502 mJpegPictureCallbackTimeLag = now - mJpegPictureCallbackTime; 503 Log.v(TAG, "mJpegPictureCallbackTimeLag = " 504 + mJpegPictureCallbackTimeLag + "ms"); 505 mJpegPictureCallbackTime = 0; 506 } 507 } 508 } 509 510 private final class ShutterCallback 511 implements android.hardware.Camera.ShutterCallback { 512 public void onShutter() { 513 mShutterCallbackTime = System.currentTimeMillis(); 514 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 515 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 516 clearFocusState(); 517 } 518 } 519 520 private final class RawPictureCallback implements PictureCallback { 521 public void onPictureTaken( 522 byte [] rawData, android.hardware.Camera camera) { 523 mRawPictureCallbackTime = System.currentTimeMillis(); 524 mShutterAndRawPictureCallbackTime = 525 mRawPictureCallbackTime - mShutterCallbackTime; 526 Log.v(TAG, "mShutterAndRawPictureCallbackTime = " 527 + mShutterAndRawPictureCallbackTime + "ms"); 528 } 529 } 530 531 private final class JpegPictureCallback implements PictureCallback { 532 Location mLocation; 533 534 public JpegPictureCallback(Location loc) { 535 mLocation = loc; 536 } 537 538 public void onPictureTaken( 539 final byte [] jpegData, final android.hardware.Camera camera) { 540 if (mPausing) { 541 return; 542 } 543 544 mJpegPictureCallbackTime = System.currentTimeMillis(); 545 mRawPictureAndJpegPictureCallbackTime = 546 mJpegPictureCallbackTime - mRawPictureCallbackTime; 547 Log.v(TAG, "mRawPictureAndJpegPictureCallbackTime = " 548 + mRawPictureAndJpegPictureCallbackTime +"ms"); 549 if (jpegData != null) { 550 mStoreImageThread = new Thread() { 551 @Override 552 public void run() { 553 mImageCapture.storeImage(jpegData, camera, mLocation); 554 } 555 }; 556 mStoreImageThread.start(); 557 } 558 559 if (!mIsImageCaptureIntent) { 560 long delay = 1500 - ( 561 System.currentTimeMillis() - mRawPictureCallbackTime); 562 mHandler.sendEmptyMessageDelayed( 563 RESTART_PREVIEW, Math.max(delay, 0)); 564 } 565 } 566 } 567 568 private final class AutoFocusCallback 569 implements android.hardware.Camera.AutoFocusCallback { 570 public void onAutoFocus( 571 boolean focused, android.hardware.Camera camera) { 572 mFocusCallbackTime = System.currentTimeMillis(); 573 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 574 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 575 if (mFocusState == FOCUSING_SNAP_ON_FINISH) { 576 // Take the picture no matter focus succeeds or fails. No need 577 // to play the AF sound if we're about to play the shutter 578 // sound. 579 if (focused) { 580 mFocusState = FOCUS_SUCCESS; 581 } else { 582 mFocusState = FOCUS_FAIL; 583 } 584 mImageCapture.onSnap(); 585 } else if (mFocusState == FOCUSING) { 586 // User is half-pressing the focus key. Play the focus tone. 587 // Do not take the picture now. 588 ToneGenerator tg = mFocusToneGenerator; 589 if (tg != null) { 590 tg.startTone(ToneGenerator.TONE_PROP_BEEP2); 591 } 592 if (focused) { 593 mFocusState = FOCUS_SUCCESS; 594 } else { 595 mFocusState = FOCUS_FAIL; 596 } 597 } else if (mFocusState == FOCUS_NOT_STARTED) { 598 // User has released the focus key before focus completes. 599 // Do nothing. 600 } 601 updateFocusIndicator(); 602 } 603 } 604 605 private class ImageCapture implements Capturer { 606 607 private boolean mCancel = false; 608 609 private Uri mLastContentUri; 610 private Cancelable<Void> mAddImageCancelable; 611 612 Bitmap mCaptureOnlyBitmap; 613 614 private void storeImage(byte[] data, Location loc) { 615 try { 616 long dateTaken = System.currentTimeMillis(); 617 String name = createName(dateTaken) + ".jpg"; 618 mLastContentUri = ImageManager.addImage( 619 mContentResolver, 620 name, 621 dateTaken, 622 loc, // location for the database goes here 623 0, // the dsp will use the right orientation so 624 // don't "double set it" 625 ImageManager.CAMERA_IMAGE_BUCKET_NAME, 626 name); 627 if (mLastContentUri == null) { 628 // this means we got an error 629 mCancel = true; 630 } 631 if (!mCancel) { 632 mAddImageCancelable = ImageManager.storeImage( 633 mLastContentUri, mContentResolver, 634 0, null, data); 635 mAddImageCancelable.get(); 636 mAddImageCancelable = null; 637 ImageManager.setImageSize(mContentResolver, mLastContentUri, 638 new File(ImageManager.CAMERA_IMAGE_BUCKET_NAME, 639 name).length()); 640 } 641 } catch (Exception ex) { 642 Log.e(TAG, "Exception while compressing image.", ex); 643 } 644 } 645 646 public void storeImage( 647 final byte[] data, android.hardware.Camera camera, Location loc) { 648 Message msg = mHandler.obtainMessage(STORE_IMAGE_DONE); 649 if (!mIsImageCaptureIntent) { 650 storeImage(data, loc); 651 sendBroadcast(new Intent( 652 "com.android.camera.NEW_PICTURE", mLastContentUri)); 653 msg.obj = data; 654 } else { 655 BitmapFactory.Options options = new BitmapFactory.Options(); 656 options.inSampleSize = 4; 657 658 mCaptureOnlyBitmap = BitmapFactory.decodeByteArray( 659 data, 0, data.length, options); 660 } 661 mHandler.sendMessage(msg); 662 } 663 664 /** 665 * Initiate the capture of an image. 666 */ 667 public void initiate() { 668 if (mCameraDevice == null) { 669 return; 670 } 671 672 mCancel = false; 673 674 capture(); 675 } 676 677 public Uri getLastCaptureUri() { 678 return mLastContentUri; 679 } 680 681 public Bitmap getLastBitmap() { 682 return mCaptureOnlyBitmap; 683 } 684 685 private void capture() { 686 mCaptureOnlyBitmap = null; 687 688 int orientation = mLastOrientation; 689 if (orientation != OrientationEventListener.ORIENTATION_UNKNOWN) { 690 orientation += 90; 691 } 692 orientation = ImageManager.roundOrientation(orientation); 693 Log.v(TAG, "mLastOrientation = " + mLastOrientation 694 + ", orientation = " + orientation); 695 696 mParameters.set(PARM_ROTATION, orientation); 697 698 Location loc = mRecordLocation ? getCurrentLocation() : null; 699 700 mParameters.remove(PARM_GPS_LATITUDE); 701 mParameters.remove(PARM_GPS_LONGITUDE); 702 mParameters.remove(PARM_GPS_ALTITUDE); 703 mParameters.remove(PARM_GPS_TIMESTAMP); 704 705 if (loc != null) { 706 double lat = loc.getLatitude(); 707 double lon = loc.getLongitude(); 708 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 709 710 if (hasLatLon) { 711 String latString = String.valueOf(lat); 712 String lonString = String.valueOf(lon); 713 mParameters.set(PARM_GPS_LATITUDE, latString); 714 mParameters.set(PARM_GPS_LONGITUDE, lonString); 715 if (loc.hasAltitude()) { 716 mParameters.set(PARM_GPS_ALTITUDE, 717 String.valueOf(loc.getAltitude())); 718 } else { 719 // for NETWORK_PROVIDER location provider, we may have 720 // no altitude information, but the driver needs it, so 721 // we fake one. 722 mParameters.set(PARM_GPS_ALTITUDE, "0"); 723 } 724 if (loc.getTime() != 0) { 725 // Location.getTime() is UTC in milliseconds. 726 // gps-timestamp is UTC in seconds. 727 long utcTimeSeconds = loc.getTime() / 1000; 728 mParameters.set(PARM_GPS_TIMESTAMP, 729 String.valueOf(utcTimeSeconds)); 730 } 731 } else { 732 loc = null; 733 } 734 } 735 736 mCameraDevice.setParameters(mParameters); 737 738 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 739 new JpegPictureCallback(loc)); 740 mPreviewing = false; 741 } 742 743 public void onSnap() { 744 // If we are already in the middle of taking a snapshot then ignore. 745 if (mPausing || mStatus == SNAPSHOT_IN_PROGRESS) { 746 return; 747 } 748 mCaptureStartTime = System.currentTimeMillis(); 749 750 // Don't check the filesystem here, we can't afford the latency. 751 // Instead, check the cached value which was calculated when the 752 // preview was restarted. 753 if (mPicturesRemaining < 1) { 754 updateStorageHint(mPicturesRemaining); 755 return; 756 } 757 758 mStatus = SNAPSHOT_IN_PROGRESS; 759 760 mImageCapture.initiate(); 761 } 762 763 private void clearLastBitmap() { 764 if (mCaptureOnlyBitmap != null) { 765 mCaptureOnlyBitmap.recycle(); 766 mCaptureOnlyBitmap = null; 767 } 768 } 769 } 770 771 private void setLastPictureThumb(byte[] data, Uri uri) { 772 BitmapFactory.Options options = new BitmapFactory.Options(); 773 options.inSampleSize = 16; 774 Bitmap lastPictureThumb = 775 BitmapFactory.decodeByteArray(data, 0, data.length, options); 776 mThumbController.setData(uri, lastPictureThumb); 777 } 778 779 private static String createName(long dateTaken) { 780 return DateFormat.format("yyyy-MM-dd kk.mm.ss", dateTaken).toString(); 781 } 782 783 public static Matrix getDisplayMatrix(Bitmap b, ImageView v) { 784 Matrix m = new Matrix(); 785 float bw = b.getWidth(); 786 float bh = b.getHeight(); 787 float vw = v.getWidth(); 788 float vh = v.getHeight(); 789 float scale, x, y; 790 if (bw * vh > vw * bh) { 791 scale = vh / bh; 792 x = (vw - scale * bw) * 0.5F; 793 y = 0; 794 } else { 795 scale = vw / bw; 796 x = 0; 797 y = (vh - scale * bh) * 0.5F; 798 } 799 m.setScale(scale, scale, 0.5F, 0.5F); 800 m.postTranslate(x, y); 801 return m; 802 } 803 804 @Override 805 public void onCreate(Bundle icicle) { 806 super.onCreate(icicle); 807 808 /* 809 * To reduce startup time, we open camera device in another thread. 810 * We make sure the camera is opened at the end of onCreate. 811 */ 812 Thread openCameraThread = new Thread(new Runnable() { 813 public void run() { 814 mCameraDevice = CameraHolder.instance().open(); 815 } 816 }); 817 openCameraThread.start(); 818 819 mPreferences = PreferenceManager.getDefaultSharedPreferences(this); 820 821 Window win = getWindow(); 822 win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 823 setContentView(R.layout.camera); 824 825 mSurfaceView = (VideoPreview) findViewById(R.id.camera_preview); 826 827 // don't set mSurfaceHolder here. We have it set ONLY within 828 // surfaceChanged / surfaceDestroyed, other parts of the code 829 // assume that when it is set, the surface is also set. 830 SurfaceHolder holder = mSurfaceView.getHolder(); 831 holder.addCallback(this); 832 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 833 834 mIsImageCaptureIntent = isImageCaptureIntent(); 835 ((Switcher) findViewById(R.id.camera_switch)).setSwitch(true); 836 837 // Make sure the services are loaded. 838 try { 839 openCameraThread.join(); 840 } catch (InterruptedException ex) { 841 // ignore 842 } 843 } 844 845 @Override 846 public void onStart() { 847 super.onStart(); 848 849 Thread t = new Thread(new Runnable() { 850 public void run() { 851 final boolean storageOK = calculatePicturesRemaining() > 0; 852 if (!storageOK) { 853 mHandler.post(new Runnable() { 854 public void run() { 855 updateStorageHint(mPicturesRemaining); 856 } 857 }); 858 } 859 } 860 }); 861 t.start(); 862 } 863 864 public void onClick(View v) { 865 switch (v.getId()) { 866 case R.id.camera_switch: 867 if (isCameraIdle()) { 868 MenuHelper.gotoVideoMode(this); 869 } 870 break; 871 case R.id.review_thumbnail: 872 if (isCameraIdle()) { 873 // Make sure image storing has completed before viewing 874 // last image. 875 waitForStoreImageThread(); 876 viewLastImage(); 877 } 878 break; 879 case R.id.attach: 880 doAttach(); 881 break; 882 case R.id.cancel: 883 doCancel(); 884 } 885 } 886 887 private void doAttach() { 888 if (mPausing) { 889 return; 890 } 891 Bitmap bitmap = mImageCapture.getLastBitmap(); 892 893 String cropValue = null; 894 Uri saveUri = null; 895 896 Bundle myExtras = getIntent().getExtras(); 897 if (myExtras != null) { 898 saveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 899 cropValue = myExtras.getString("crop"); 900 } 901 902 903 if (cropValue == null) { 904 // First handle the no crop case -- just return the value. If the 905 // caller specifies a "save uri" then write the data to it's 906 // stream. Otherwise, pass back a scaled down version of the bitmap 907 // directly in the extras. 908 if (saveUri != null) { 909 OutputStream outputStream = null; 910 try { 911 outputStream = mContentResolver.openOutputStream(saveUri); 912 bitmap.compress(Bitmap.CompressFormat.JPEG, 75, 913 outputStream); 914 outputStream.close(); 915 916 setResult(RESULT_OK); 917 finish(); 918 } catch (IOException ex) { 919 // ignore exception 920 } finally { 921 if (outputStream != null) { 922 try { 923 outputStream.close(); 924 } catch (IOException ex) { 925 // ignore exception 926 } 927 } 928 } 929 } else { 930 float scale = .5F; 931 Matrix m = new Matrix(); 932 m.setScale(scale, scale); 933 934 bitmap = Bitmap.createBitmap(bitmap, 0, 0, 935 bitmap.getWidth(), 936 bitmap.getHeight(), 937 m, true); 938 939 setResult(RESULT_OK, 940 new Intent("inline-data").putExtra("data", bitmap)); 941 finish(); 942 } 943 } else { 944 // Save the image to a temp file and invoke the cropper 945 Uri tempUri = null; 946 FileOutputStream tempStream = null; 947 try { 948 File path = getFileStreamPath(sTempCropFilename); 949 path.delete(); 950 tempStream = openFileOutput(sTempCropFilename, 0); 951 bitmap.compress(Bitmap.CompressFormat.JPEG, 75, tempStream); 952 tempStream.close(); 953 tempUri = Uri.fromFile(path); 954 } catch (FileNotFoundException ex) { 955 setResult(Activity.RESULT_CANCELED); 956 finish(); 957 return; 958 } catch (IOException ex) { 959 setResult(Activity.RESULT_CANCELED); 960 finish(); 961 return; 962 } finally { 963 if (tempStream != null) { 964 try { 965 tempStream.close(); 966 } catch (IOException ex) { 967 // ignore exception 968 } 969 } 970 } 971 972 Bundle newExtras = new Bundle(); 973 if (cropValue.equals("circle")) { 974 newExtras.putString("circleCrop", "true"); 975 } 976 if (saveUri != null) { 977 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, saveUri); 978 } else { 979 newExtras.putBoolean("return-data", true); 980 } 981 982 Intent cropIntent = new Intent(); 983 cropIntent.setClass(Camera.this, CropImage.class); 984 cropIntent.setData(tempUri); 985 cropIntent.putExtras(newExtras); 986 987 startActivityForResult(cropIntent, CROP_MSG); 988 } 989 } 990 991 private void doCancel() { 992 setResult(RESULT_CANCELED, new Intent()); 993 finish(); 994 } 995 996 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 997 if (mPausing) { 998 return; 999 } 1000 switch (button.getId()) { 1001 case R.id.shutter_button: 1002 if (mStoreImageThread == null) { 1003 doFocus(pressed); 1004 } else { 1005 Toast.makeText(Camera.this, 1006 getResources().getString(R.string.wait), 1007 Toast.LENGTH_SHORT); 1008 } 1009 break; 1010 } 1011 } 1012 1013 public void onShutterButtonClick(ShutterButton button) { 1014 if (mPausing) { 1015 return; 1016 } 1017 switch (button.getId()) { 1018 case R.id.shutter_button: 1019 if (mIsImageCaptureIntent 1020 && mPostCaptureAlert.getVisibility() == View.VISIBLE) { 1021 // User was reviewing the capture image. Hide the action 1022 // items and start the preview now. 1023 hidePostCaptureAlert(); 1024 restartPreview(); 1025 } else if (mStoreImageThread == null) { 1026 // Take a picture. 1027 doSnap(); 1028 } else { 1029 Toast.makeText(Camera.this, 1030 getResources().getString(R.string.wait), 1031 Toast.LENGTH_SHORT); 1032 } 1033 break; 1034 } 1035 } 1036 1037 private void updateStorageHint() { 1038 updateStorageHint(MenuHelper.calculatePicturesRemaining()); 1039 } 1040 1041 private OnScreenHint mStorageHint; 1042 1043 private void updateStorageHint(int remaining) { 1044 String noStorageText = null; 1045 1046 if (remaining == MenuHelper.NO_STORAGE_ERROR) { 1047 String state = Environment.getExternalStorageState(); 1048 if (state == Environment.MEDIA_CHECKING) { 1049 noStorageText = getString(R.string.preparing_sd); 1050 } else { 1051 noStorageText = getString(R.string.no_storage); 1052 } 1053 } else if (remaining < 1) { 1054 noStorageText = getString(R.string.not_enough_space); 1055 } 1056 1057 if (noStorageText != null) { 1058 if (mStorageHint == null) { 1059 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1060 } else { 1061 mStorageHint.setText(noStorageText); 1062 } 1063 mStorageHint.show(); 1064 } else if (mStorageHint != null) { 1065 mStorageHint.cancel(); 1066 mStorageHint = null; 1067 } 1068 } 1069 1070 void installIntentFilter() { 1071 // install an intent filter to receive SD card related events. 1072 IntentFilter intentFilter = 1073 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1074 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1075 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED); 1076 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1077 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1078 intentFilter.addDataScheme("file"); 1079 registerReceiver(mReceiver, intentFilter); 1080 mDidRegister = true; 1081 } 1082 1083 void initializeFocusTone() { 1084 // Initialize focus tone generator. 1085 try { 1086 mFocusToneGenerator = new ToneGenerator( 1087 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1088 } catch (Throwable ex) { 1089 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1090 mFocusToneGenerator = null; 1091 } 1092 } 1093 1094 void readPreference() { 1095 mRecordLocation = mPreferences.getBoolean( 1096 "pref_camera_recordlocation_key", false); 1097 mFocusMode = mPreferences.getString( 1098 CameraSettings.KEY_FOCUS_MODE, 1099 getString(R.string.pref_camera_focusmode_default)); 1100 } 1101 1102 @Override 1103 public void onResume() { 1104 super.onResume(); 1105 1106 mPausing = false; 1107 mJpegPictureCallbackTime = 0; 1108 mImageCapture = new ImageCapture(); 1109 1110 if (mSurfaceHolder != null) { 1111 // If surface holder is created, start the preview now. Otherwise, 1112 // wait until surfaceChanged. 1113 mSurfaceView.setAspectRatio(VideoPreview.DONT_CARE); 1114 startPreview(); 1115 1116 // If first time initialization is not finished, put it in the 1117 // message queue. 1118 if (!mFirstTimeInitialized) { 1119 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1120 } else { 1121 initializeSecondTime(); 1122 } 1123 } 1124 1125 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 1126 } 1127 1128 private static ImageManager.DataLocation dataLocation() { 1129 return ImageManager.DataLocation.EXTERNAL; 1130 } 1131 1132 private void waitForStoreImageThread() { 1133 if (mStoreImageThread != null) { 1134 try { 1135 mStoreImageThread.join(); 1136 } catch (InterruptedException ex) { 1137 // Ignore this exception. 1138 Log.e(TAG, "", ex); 1139 } finally { 1140 mStoreImageThread = null; 1141 } 1142 } 1143 } 1144 1145 @Override 1146 protected void onPause() { 1147 mPausing = true; 1148 stopPreview(); 1149 // Close the camera now because other activities may need to use it. 1150 closeCamera(); 1151 1152 waitForStoreImageThread(); 1153 1154 if (mFirstTimeInitialized) { 1155 mOrientationListener.disable(); 1156 mGpsIndicator.setVisibility(View.INVISIBLE); 1157 if (!mIsImageCaptureIntent) { 1158 mThumbController.storeData( 1159 ImageManager.getLastImageThumbPath()); 1160 } 1161 hidePostCaptureAlert(); 1162 } 1163 1164 if (mDidRegister) { 1165 unregisterReceiver(mReceiver); 1166 mDidRegister = false; 1167 } 1168 stopReceivingLocationUpdates(); 1169 1170 if (mFocusToneGenerator != null) { 1171 mFocusToneGenerator.release(); 1172 mFocusToneGenerator = null; 1173 } 1174 1175 if (mStorageHint != null) { 1176 mStorageHint.cancel(); 1177 mStorageHint = null; 1178 } 1179 1180 // If we are in an image capture intent and has taken 1181 // a picture, we just clear it in onPause. 1182 mImageCapture.clearLastBitmap(); 1183 mImageCapture = null; 1184 1185 // This is necessary to make the ZoomButtonsController unregister 1186 // its configuration change receiver. 1187 if (mZoomButtons != null) { 1188 mZoomButtons.setVisible(false); 1189 } 1190 1191 // Remove the messages in the event queue. 1192 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 1193 mHandler.removeMessages(RESTART_PREVIEW); 1194 mHandler.removeMessages(FIRST_TIME_INIT); 1195 mHandler.removeMessages(STORE_IMAGE_DONE); 1196 1197 super.onPause(); 1198 } 1199 1200 @Override 1201 protected void onActivityResult( 1202 int requestCode, int resultCode, Intent data) { 1203 switch (requestCode) { 1204 case CROP_MSG: { 1205 Intent intent = new Intent(); 1206 if (data != null) { 1207 Bundle extras = data.getExtras(); 1208 if (extras != null) { 1209 intent.putExtras(extras); 1210 } 1211 } 1212 setResult(resultCode, intent); 1213 finish(); 1214 1215 File path = getFileStreamPath(sTempCropFilename); 1216 path.delete(); 1217 1218 break; 1219 } 1220 } 1221 } 1222 1223 private void autoFocus() { 1224 // Initiate autofocus only when preview is started and snapshot is not 1225 // in progress. 1226 if (isCameraIdle() && mPreviewing) { 1227 Log.v(TAG, "Start autofocus."); 1228 if (mZoomButtons != null) mZoomButtons.setVisible(false); 1229 mFocusStartTime = System.currentTimeMillis(); 1230 mFocusState = FOCUSING; 1231 updateFocusIndicator(); 1232 mCameraDevice.autoFocus(mAutoFocusCallback); 1233 } 1234 } 1235 1236 private void clearFocusState() { 1237 mFocusState = FOCUS_NOT_STARTED; 1238 updateFocusIndicator(); 1239 } 1240 1241 private void updateFocusIndicator() { 1242 if (mFocusRectangle == null) return; 1243 1244 if (mFocusState == FOCUSING || mFocusState == FOCUSING_SNAP_ON_FINISH) { 1245 mFocusRectangle.showStart(); 1246 } else if (mFocusState == FOCUS_SUCCESS) { 1247 mFocusRectangle.showSuccess(); 1248 } else if (mFocusState == FOCUS_FAIL) { 1249 mFocusRectangle.showFail(); 1250 } else { 1251 mFocusRectangle.clear(); 1252 } 1253 } 1254 1255 @Override 1256 public boolean onKeyDown(int keyCode, KeyEvent event) { 1257 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 1258 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1259 1260 switch (keyCode) { 1261 case KeyEvent.KEYCODE_BACK: 1262 if (!isCameraIdle()) { 1263 // ignore backs while we're taking a picture 1264 return true; 1265 } 1266 break; 1267 case KeyEvent.KEYCODE_FOCUS: 1268 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1269 doFocus(true); 1270 } 1271 return true; 1272 case KeyEvent.KEYCODE_CAMERA: 1273 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1274 doSnap(); 1275 } 1276 return true; 1277 case KeyEvent.KEYCODE_DPAD_CENTER: 1278 // If we get a dpad center event without any focused view, move 1279 // the focus to the shutter button and press it. 1280 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1281 // Start auto-focus immediately to reduce shutter lag. After 1282 // the shutter button gets the focus, doFocus() will be 1283 // called again but it is fine. 1284 doFocus(true); 1285 if (mShutterButton.isInTouchMode()) { 1286 mShutterButton.requestFocusFromTouch(); 1287 } else { 1288 mShutterButton.requestFocus(); 1289 } 1290 mShutterButton.setPressed(true); 1291 } 1292 return true; 1293 } 1294 1295 return super.onKeyDown(keyCode, event); 1296 } 1297 1298 @Override 1299 public boolean onKeyUp(int keyCode, KeyEvent event) { 1300 switch (keyCode) { 1301 case KeyEvent.KEYCODE_FOCUS: 1302 if (mFirstTimeInitialized) { 1303 doFocus(false); 1304 } 1305 return true; 1306 } 1307 return super.onKeyUp(keyCode, event); 1308 } 1309 1310 @Override 1311 public boolean onTouchEvent(MotionEvent event) { 1312 switch (event.getAction()) { 1313 case MotionEvent.ACTION_DOWN: 1314 // Show zoom buttons only when preview is started and snapshot 1315 // is not in progress. mZoomButtons may be null if it is not 1316 // initialized. 1317 if (!mPausing && isCameraIdle() && mPreviewing 1318 && mZoomButtons != null) { 1319 mZoomButtons.setVisible(true); 1320 } 1321 return true; 1322 } 1323 return super.onTouchEvent(event); 1324 } 1325 1326 private void doSnap() { 1327 // If the user has half-pressed the shutter and focus is completed, we 1328 // can take the photo right away. If the focus mode is infinity, we can 1329 // also take the photo. 1330 if (mFocusMode.equals(getString( 1331 R.string.pref_camera_focusmode_value_infinity)) 1332 || (mFocusState == FOCUS_SUCCESS || mFocusState == FOCUS_FAIL)) { 1333 if (mZoomButtons != null) mZoomButtons.setVisible(false); 1334 mImageCapture.onSnap(); 1335 } else if (mFocusState == FOCUSING) { 1336 // Half pressing the shutter (i.e. the focus button event) will 1337 // already have requested AF for us, so just request capture on 1338 // focus here. 1339 mFocusState = FOCUSING_SNAP_ON_FINISH; 1340 } else if (mFocusState == FOCUS_NOT_STARTED) { 1341 // Focus key down event is dropped for some reasons. Just ignore. 1342 } 1343 } 1344 1345 private void doFocus(boolean pressed) { 1346 // Do the focus if the mode is auto. No focus needed in infinity mode. 1347 if (mFocusMode.equals(getString( 1348 R.string.pref_camera_focusmode_value_auto))) { 1349 if (pressed) { // Focus key down. 1350 autoFocus(); 1351 } else { // Focus key up. 1352 if (mFocusState != FOCUSING_SNAP_ON_FINISH) { 1353 // User releases half-pressed focus key. 1354 clearFocusState(); 1355 } 1356 } 1357 } 1358 } 1359 1360 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1361 // Make sure we have a surface in the holder before proceeding. 1362 if (holder.getSurface() == null) { 1363 Log.d(TAG, "holder.getSurface() == null"); 1364 return; 1365 } 1366 1367 mSurfaceHolder = holder; 1368 mViewFinderWidth = w; 1369 mViewFinderHeight = h; 1370 1371 // Sometimes surfaceChanged is called after onPause. Ignore it. 1372 if (mPausing) return; 1373 1374 // Do not start preview if we changed surface view ratio to show 1375 // captured image after snapshot. 1376 if (mStatus == SNAPSHOT_IN_PROGRESS) return; 1377 1378 // Start the preview. 1379 startPreview(); 1380 1381 // If first time initialization is not finished, send a message to do 1382 // it later. We want to finish surfaceChanged as soon as possible to let 1383 // user see preview first. 1384 if (!mFirstTimeInitialized) { 1385 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1386 } else { 1387 initializeSecondTime(); 1388 } 1389 } 1390 1391 public void surfaceCreated(SurfaceHolder holder) { 1392 } 1393 1394 public void surfaceDestroyed(SurfaceHolder holder) { 1395 stopPreview(); 1396 mSurfaceHolder = null; 1397 } 1398 1399 private void closeCamera() { 1400 if (mCameraDevice != null) { 1401 CameraHolder.instance().release(); 1402 mCameraDevice = null; 1403 mPreviewing = false; 1404 } 1405 } 1406 1407 private boolean ensureCameraDevice() { 1408 if (mCameraDevice == null) { 1409 mCameraDevice = CameraHolder.instance().open(); 1410 } 1411 return mCameraDevice != null; 1412 } 1413 1414 private void updateLastImage() { 1415 IImageList list = ImageManager.allImages( 1416 mContentResolver, 1417 dataLocation(), 1418 ImageManager.INCLUDE_IMAGES, 1419 ImageManager.SORT_ASCENDING, 1420 ImageManager.CAMERA_IMAGE_BUCKET_ID); 1421 int count = list.getCount(); 1422 if (count > 0) { 1423 IImage image = list.getImageAt(count - 1); 1424 Uri uri = image.fullSizeImageUri(); 1425 mThumbController.setData(uri, image.miniThumbBitmap()); 1426 } else { 1427 mThumbController.setData(null, null); 1428 } 1429 list.deactivate(); 1430 } 1431 1432 private void restartPreview() { 1433 // make sure the surfaceview fills the whole screen when previewing 1434 mSurfaceView.setAspectRatio(VideoPreview.DONT_CARE); 1435 startPreview(); 1436 1437 // Calculate this in advance of each shot so we don't add to shutter 1438 // latency. It's true that someone else could write to the SD card in 1439 // the mean time and fill it, but that could have happened between the 1440 // shutter press and saving the JPEG too. 1441 calculatePicturesRemaining(); 1442 } 1443 1444 private void startPreview() { 1445 if (mPausing) return; 1446 1447 if (!ensureCameraDevice()) return; 1448 1449 if (mSurfaceHolder == null) return; 1450 1451 if (isFinishing()) return; 1452 1453 // If we're previewing already, stop the preview first (this will blank 1454 // the screen). 1455 if (mPreviewing) stopPreview(); 1456 1457 // this blanks the screen if the surface changed, no-op otherwise 1458 try { 1459 mCameraDevice.setPreviewDisplay(mSurfaceHolder); 1460 } catch (Throwable ex) { 1461 closeCamera(); 1462 throw new RuntimeException("setPreviewDisplay failed", ex); 1463 } 1464 1465 setCameraParameter(); 1466 1467 final long wallTimeStart = SystemClock.elapsedRealtime(); 1468 final long threadTimeStart = Debug.threadCpuTimeNanos(); 1469 1470 // Set one shot preview callback for latency measurement. 1471 mCameraDevice.setOneShotPreviewCallback(mOneShotPreviewCallback); 1472 1473 try { 1474 Log.v(TAG, "startPreview"); 1475 mCameraDevice.startPreview(); 1476 } catch (Throwable ex) { 1477 closeCamera(); 1478 throw new RuntimeException("startPreview failed", ex); 1479 } 1480 mPreviewing = true; 1481 mStatus = IDLE; 1482 1483 long threadTimeEnd = Debug.threadCpuTimeNanos(); 1484 long wallTimeEnd = SystemClock.elapsedRealtime(); 1485 if ((wallTimeEnd - wallTimeStart) > 3000) { 1486 Log.w(TAG, "startPreview() to " + (wallTimeEnd - wallTimeStart) 1487 + " ms. Thread time was" 1488 + (threadTimeEnd - threadTimeStart) / 1000000 + " ms."); 1489 } 1490 } 1491 1492 private void stopPreview() { 1493 if (mCameraDevice != null && mPreviewing) { 1494 Log.v(TAG, "stopPreview"); 1495 mCameraDevice.stopPreview(); 1496 } 1497 mPreviewing = false; 1498 // If auto focus was in progress, it would have been canceled. 1499 clearFocusState(); 1500 } 1501 1502 private void setCameraParameter() { 1503 // request the preview size, the hardware may not honor it, 1504 // if we depended on it we would have to query the size again 1505 mParameters = mCameraDevice.getParameters(); 1506 mParameters.setPreviewSize(mViewFinderWidth, mViewFinderHeight); 1507 1508 // Set picture size parameter. 1509 String pictureSize = mPreferences.getString( 1510 CameraSettings.KEY_PICTURE_SIZE, 1511 getString(R.string.pref_camera_picturesize_default)); 1512 mParameters.set(PARM_PICTURE_SIZE, pictureSize); 1513 1514 // Set JPEG quality parameter. 1515 String jpegQuality = mPreferences.getString( 1516 CameraSettings.KEY_JPEG_QUALITY, 1517 getString(R.string.pref_camera_jpegquality_default)); 1518 mParameters.set(PARM_JPEG_QUALITY, jpegQuality); 1519 1520 // Set zoom. 1521 if (mZoomValues != null) { 1522 mParameters.set(PARM_ZOOM, mZoomValues[mZoomIndex]); 1523 } 1524 1525 mCameraDevice.setParameters(mParameters); 1526 } 1527 1528 void gotoGallery() { 1529 MenuHelper.gotoCameraImageGallery(this); 1530 } 1531 1532 private void viewLastImage() { 1533 if (mThumbController.isUriValid()) { 1534 Uri targetUri = mThumbController.getUri(); 1535 targetUri = targetUri.buildUpon().appendQueryParameter( 1536 "bucketId", ImageManager.CAMERA_IMAGE_BUCKET_ID).build(); 1537 Intent intent = new Intent(Intent.ACTION_VIEW, targetUri); 1538 intent.putExtra(MediaStore.EXTRA_FULL_SCREEN, true); 1539 intent.putExtra(MediaStore.EXTRA_SHOW_ACTION_ICONS, true); 1540 intent.putExtra("com.android.camera.ReviewMode", true); 1541 try { 1542 startActivity(intent); 1543 } catch (ActivityNotFoundException ex) { 1544 Log.e(TAG, "review image fail", ex); 1545 } 1546 } else { 1547 Log.e(TAG, "Can't view last image."); 1548 } 1549 } 1550 1551 private void startReceivingLocationUpdates() { 1552 if (mLocationManager != null) { 1553 try { 1554 mLocationManager.requestLocationUpdates( 1555 LocationManager.NETWORK_PROVIDER, 1556 1000, 1557 0F, 1558 mLocationListeners[1]); 1559 } catch (java.lang.SecurityException ex) { 1560 Log.i(TAG, "fail to request location update, ignore", ex); 1561 } catch (IllegalArgumentException ex) { 1562 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1563 } 1564 try { 1565 mLocationManager.requestLocationUpdates( 1566 LocationManager.GPS_PROVIDER, 1567 1000, 1568 0F, 1569 mLocationListeners[0]); 1570 } catch (java.lang.SecurityException ex) { 1571 Log.i(TAG, "fail to request location update, ignore", ex); 1572 } catch (IllegalArgumentException ex) { 1573 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1574 } 1575 } 1576 } 1577 1578 private void stopReceivingLocationUpdates() { 1579 if (mLocationManager != null) { 1580 for (int i = 0; i < mLocationListeners.length; i++) { 1581 try { 1582 mLocationManager.removeUpdates(mLocationListeners[i]); 1583 } catch (Exception ex) { 1584 Log.i(TAG, "fail to remove location listners, ignore", ex); 1585 } 1586 } 1587 } 1588 } 1589 1590 private Location getCurrentLocation() { 1591 // go in best to worst order 1592 for (int i = 0; i < mLocationListeners.length; i++) { 1593 Location l = mLocationListeners[i].current(); 1594 if (l != null) return l; 1595 } 1596 return null; 1597 } 1598 1599 private boolean isCameraIdle() { 1600 return mStatus == IDLE && mFocusState == FOCUS_NOT_STARTED; 1601 } 1602 1603 private boolean isImageCaptureIntent() { 1604 String action = getIntent().getAction(); 1605 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 1606 } 1607 1608 private void showPostCaptureAlert() { 1609 if (mIsImageCaptureIntent) { 1610 mPostCaptureAlert.setVisibility(View.VISIBLE); 1611 int[] pickIds = {R.id.attach, R.id.cancel}; 1612 for (int id : pickIds) { 1613 View view = mPostCaptureAlert.findViewById(id); 1614 view.setOnClickListener(this); 1615 Animation animation = new AlphaAnimation(0F, 1F); 1616 animation.setDuration(500); 1617 view.setAnimation(animation); 1618 } 1619 } 1620 } 1621 1622 private void hidePostCaptureAlert() { 1623 if (mIsImageCaptureIntent) { 1624 mPostCaptureAlert.setVisibility(View.INVISIBLE); 1625 } 1626 } 1627 1628 private int calculatePicturesRemaining() { 1629 mPicturesRemaining = MenuHelper.calculatePicturesRemaining(); 1630 return mPicturesRemaining; 1631 } 1632 1633 @Override 1634 public boolean onPrepareOptionsMenu(Menu menu) { 1635 super.onPrepareOptionsMenu(menu); 1636 1637 for (int i = 1; i <= MenuHelper.MENU_ITEM_MAX; i++) { 1638 menu.setGroupVisible(i, false); 1639 } 1640 1641 // Only show the menu when camera is idle. 1642 if (isCameraIdle()) { 1643 menu.setGroupVisible(MenuHelper.GENERIC_ITEM, true); 1644 menu.setGroupVisible(MenuHelper.IMAGE_MODE_ITEM, true); 1645 } 1646 1647 return true; 1648 } 1649 1650 @Override 1651 public boolean onCreateOptionsMenu(Menu menu) { 1652 super.onCreateOptionsMenu(menu); 1653 1654 if (mIsImageCaptureIntent) { 1655 // No options menu for attach mode. 1656 return false; 1657 } else { 1658 addBaseMenuItems(menu); 1659 } 1660 return true; 1661 } 1662 1663 private void addBaseMenuItems(Menu menu) { 1664 MenuHelper.addSwitchModeMenuItem(menu, this, true); 1665 { 1666 MenuItem gallery = menu.add( 1667 MenuHelper.IMAGE_MODE_ITEM, MENU_GALLERY_PHOTOS, 0, 1668 R.string.camera_gallery_photos_text) 1669 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1670 public boolean onMenuItemClick(MenuItem item) { 1671 gotoGallery(); 1672 return true; 1673 } 1674 }); 1675 gallery.setIcon(android.R.drawable.ic_menu_gallery); 1676 mGalleryItems.add(gallery); 1677 } 1678 { 1679 MenuItem gallery = menu.add( 1680 MenuHelper.VIDEO_MODE_ITEM, MENU_GALLERY_VIDEOS, 0, 1681 R.string.camera_gallery_photos_text) 1682 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1683 public boolean onMenuItemClick(MenuItem item) { 1684 gotoGallery(); 1685 return true; 1686 } 1687 }); 1688 gallery.setIcon(android.R.drawable.ic_menu_gallery); 1689 mGalleryItems.add(gallery); 1690 } 1691 1692 MenuItem item = menu.add(MenuHelper.GENERIC_ITEM, MENU_SETTINGS, 1693 0, R.string.settings) 1694 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1695 public boolean onMenuItemClick(MenuItem item) { 1696 // Keep the camera instance for a while. 1697 // This avoids re-opening the camera and saves time. 1698 CameraHolder.instance().keep(); 1699 1700 Intent intent = new Intent(); 1701 intent.setClass(Camera.this, CameraSettings.class); 1702 startActivity(intent); 1703 return true; 1704 } 1705 }); 1706 item.setIcon(android.R.drawable.ic_menu_preferences); 1707 } 1708} 1709 1710class FocusRectangle extends View { 1711 1712 @SuppressWarnings("unused") 1713 private static final String TAG = "FocusRectangle"; 1714 1715 public FocusRectangle(Context context, AttributeSet attrs) { 1716 super(context, attrs); 1717 } 1718 1719 private void setDrawable(int resid) { 1720 setBackgroundDrawable(getResources().getDrawable(resid)); 1721 } 1722 1723 public void showStart() { 1724 setDrawable(R.drawable.focus_focusing); 1725 } 1726 1727 public void showSuccess() { 1728 setDrawable(R.drawable.focus_focused); 1729 } 1730 1731 public void showFail() { 1732 setDrawable(R.drawable.focus_focus_failed); 1733 } 1734 1735 public void clear() { 1736 setBackgroundDrawable(null); 1737 } 1738} 1739