Camera.java revision 562f9230a5fec6ed0d126f62f498424cd47bb11e
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 android.app.Activity; 20import android.content.ActivityNotFoundException; 21import android.content.BroadcastReceiver; 22import android.content.ContentResolver; 23import android.content.Context; 24import android.content.Intent; 25import android.content.IntentFilter; 26import android.content.SharedPreferences; 27import android.content.res.Resources; 28import android.graphics.Bitmap; 29import android.graphics.BitmapFactory; 30import android.graphics.Matrix; 31import android.hardware.Camera.Parameters; 32import android.hardware.Camera.PictureCallback; 33import android.hardware.Camera.Size; 34import android.location.Location; 35import android.location.LocationManager; 36import android.location.LocationProvider; 37import android.media.AudioManager; 38import android.media.ToneGenerator; 39import android.net.Uri; 40import android.os.Bundle; 41import android.os.Debug; 42import android.os.Environment; 43import android.os.Handler; 44import android.os.Message; 45import android.os.SystemClock; 46import android.preference.PreferenceManager; 47import android.provider.MediaStore; 48import android.text.format.DateFormat; 49import android.util.AttributeSet; 50import android.util.Log; 51import android.view.GestureDetector; 52import android.view.KeyEvent; 53import android.view.LayoutInflater; 54import android.view.Menu; 55import android.view.MenuItem; 56import android.view.MotionEvent; 57import android.view.OrientationEventListener; 58import android.view.SurfaceHolder; 59import android.view.View; 60import android.view.ViewGroup; 61import android.view.Window; 62import android.view.WindowManager; 63import android.view.MenuItem.OnMenuItemClickListener; 64import android.widget.ImageView; 65import android.widget.ZoomButtonsController; 66 67import com.android.camera.gallery.IImage; 68import com.android.camera.gallery.IImageList; 69 70import java.io.File; 71import java.io.FileNotFoundException; 72import java.io.FileOutputStream; 73import java.io.IOException; 74import java.io.OutputStream; 75import java.util.ArrayList; 76import java.util.List; 77import java.util.StringTokenizer; 78 79/** 80 * Activity of the Camera which used to see preview and take pictures. 81 */ 82public class Camera extends Activity implements View.OnClickListener, 83 ShutterButton.OnShutterButtonListener, SurfaceHolder.Callback, 84 Switcher.OnSwitchListener, FlashButton.ModeChangeListener { 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 93 private static final int SCREEN_DELAY = 2 * 60 * 1000; 94 private static final int FOCUS_BEEP_VOLUME = 100; 95 96 public static final int MENU_SWITCH_TO_VIDEO = 0; 97 public static final int MENU_SWITCH_TO_CAMERA = 1; 98 public static final int MENU_FLASH_SETTING = 2; 99 public static final int MENU_FLASH_AUTO = 3; 100 public static final int MENU_FLASH_ON = 4; 101 public static final int MENU_FLASH_OFF = 5; 102 public static final int MENU_SETTINGS = 6; 103 public static final int MENU_GALLERY_PHOTOS = 7; 104 public static final int MENU_GALLERY_VIDEOS = 8; 105 public static final int MENU_SAVE_SELECT_PHOTOS = 30; 106 public static final int MENU_SAVE_NEW_PHOTO = 31; 107 public static final int MENU_SAVE_GALLERY_PHOTO = 34; 108 public static final int MENU_SAVE_GALLERY_VIDEO_PHOTO = 35; 109 public static final int MENU_SAVE_CAMERA_DONE = 36; 110 public static final int MENU_SAVE_CAMERA_VIDEO_DONE = 37; 111 112 private double mZoomValue; // The current zoom value. 113 private boolean mZooming = false; 114 private double mZoomStep; 115 private double mZoomMax; 116 public static final double ZOOM_STEP_MIN = 0.25; 117 public static final String ZOOM_STOP = "stop"; 118 public static final String ZOOM_IMMEDIATE = "zoom-immediate"; 119 public static final String ZOOM_CONTINUOUS = "zoom-continuous"; 120 public static final double ZOOM_MIN = 1.0; 121 public static final String ZOOM_SPEED ="99"; 122 123 // The parameter strings to communicate with camera driver. 124 public static final String PARM_ZOOM_STATE = "zoom-state"; 125 public static final String PARM_ZOOM_STEP = "zoom-step"; 126 public static final String PARM_ZOOM_TO_LEVEL = "zoom-to-level"; 127 public static final String PARM_ZOOM_SPEED = "zoom-speed"; 128 public static final String PARM_ZOOM_MAX = "max-picture-continuous-zoom"; 129 130 private Parameters mParameters; 131 132 private OrientationEventListener mOrientationListener; 133 private int mLastOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 134 private SharedPreferences mPreferences; 135 136 private static final int IDLE = 1; 137 private static final int SNAPSHOT_IN_PROGRESS = 2; 138 139 private static final boolean SWITCH_CAMERA = true; 140 private static final boolean SWITCH_VIDEO = false; 141 142 private int mStatus = IDLE; 143 private static final String sTempCropFilename = "crop-temp"; 144 145 private android.hardware.Camera mCameraDevice; 146 private VideoPreview mSurfaceView; 147 private SurfaceHolder mSurfaceHolder = null; 148 private ShutterButton mShutterButton; 149 private FocusRectangle mFocusRectangle; 150 private FlashButton mFlashButton; 151 private ImageView mGpsIndicator; 152 private ToneGenerator mFocusToneGenerator; 153 private ZoomButtonsController mZoomButtons; 154 private GestureDetector mGestureDetector; 155 private Switcher mSwitcher; 156 private boolean mStartPreviewFail = false; 157 158 // mPostCaptureAlert, mLastPictureButton, mThumbController 159 // are non-null only if isImageCaptureIntent() is true. 160 private ImageView mLastPictureButton; 161 private ThumbnailController mThumbController; 162 163 private int mViewFinderWidth, mViewFinderHeight; 164 165 private ImageCapture mImageCapture = null; 166 167 private boolean mPreviewing; 168 private boolean mPausing; 169 private boolean mFirstTimeInitialized; 170 private boolean mIsImageCaptureIntent; 171 private boolean mRecordLocation; 172 173 private static final int FOCUS_NOT_STARTED = 0; 174 private static final int FOCUSING = 1; 175 private static final int FOCUSING_SNAP_ON_FINISH = 2; 176 private static final int FOCUS_SUCCESS = 3; 177 private static final int FOCUS_FAIL = 4; 178 private int mFocusState = FOCUS_NOT_STARTED; 179 180 private ContentResolver mContentResolver; 181 private boolean mDidRegister = false; 182 183 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 184 185 private LocationManager mLocationManager = null; 186 187 // Use OneShotPreviewCallback to measure the time between 188 // JpegPictureCallback and preview. 189 private final OneShotPreviewCallback mOneShotPreviewCallback = 190 new OneShotPreviewCallback(); 191 private final ShutterCallback mShutterCallback = new ShutterCallback(); 192 private final RawPictureCallback mRawPictureCallback = 193 new RawPictureCallback(); 194 private final AutoFocusCallback mAutoFocusCallback = 195 new AutoFocusCallback(); 196 private final ZoomCallback mZoomCallback = new ZoomCallback(); 197 // Use the ErrorCallback to capture the crash count 198 // on the mediaserver 199 private final ErrorCallback mErrorCallback = new ErrorCallback(); 200 201 private long mFocusStartTime; 202 private long mFocusCallbackTime; 203 private long mCaptureStartTime; 204 private long mShutterCallbackTime; 205 private long mRawPictureCallbackTime; 206 private long mJpegPictureCallbackTime; 207 private int mPicturesRemaining; 208 209 // These latency time are for the CameraLatency test. 210 public long mAutoFocusTime; 211 public long mShutterLag; 212 public long mShutterAndRawPictureCallbackTime; 213 public long mJpegPictureCallbackTimeLag; 214 public long mRawPictureAndJpegPictureCallbackTime; 215 216 //Add the media server tag 217 public static boolean mMediaServerDied = false; 218 // Focus mode. Options are pref_camera_focusmode_entryvalues. 219 private String mFocusMode; 220 221 private final Handler mHandler = new MainHandler(); 222 223 /** 224 * This Handler is used to post message back onto the main thread of the 225 * application 226 */ 227 private class MainHandler extends Handler { 228 @Override 229 public void handleMessage(Message msg) { 230 switch (msg.what) { 231 case RESTART_PREVIEW: { 232 restartPreview(); 233 break; 234 } 235 236 case CLEAR_SCREEN_DELAY: { 237 getWindow().clearFlags( 238 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 239 break; 240 } 241 242 case FIRST_TIME_INIT: { 243 initializeFirstTime(); 244 break; 245 } 246 } 247 } 248 } 249 250 // Snapshots can only be taken after this is called. It should be called 251 // once only. We could have done these things in onCreate() but we want to 252 // make preview screen appear as soon as possible. 253 private void initializeFirstTime() { 254 if (mFirstTimeInitialized) return; 255 256 // Create orientation listenter. This should be done first because it 257 // takes some time to get first orientation. 258 mOrientationListener = 259 new OrientationEventListener(Camera.this) { 260 @Override 261 public void onOrientationChanged(int orientation) { 262 // We keep the last known orientation. So if the user 263 // first orient the camera then point the camera to 264 // floor/sky, we still have the correct orientation. 265 if (orientation != ORIENTATION_UNKNOWN) { 266 mLastOrientation = orientation; 267 } 268 } 269 }; 270 mOrientationListener.enable(); 271 272 // Initialize location sevice. 273 mLocationManager = (LocationManager) 274 getSystemService(Context.LOCATION_SERVICE); 275 readPreference(); 276 if (mRecordLocation) startReceivingLocationUpdates(); 277 278 checkStorage(); 279 280 // Initialize last picture button. 281 mContentResolver = getContentResolver(); 282 if (!mIsImageCaptureIntent) { 283 findViewById(R.id.camera_switch).setOnClickListener(this); 284 mLastPictureButton = 285 (ImageView) findViewById(R.id.review_thumbnail); 286 mLastPictureButton.setOnClickListener(this); 287 mThumbController = new ThumbnailController( 288 getResources(), mLastPictureButton, mContentResolver); 289 mThumbController.loadData(ImageManager.getLastImageThumbPath()); 290 // Update last image thumbnail. 291 updateThumbnailButton(); 292 } 293 294 // Initialize shutter button. 295 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 296 mShutterButton.setOnShutterButtonListener(this); 297 mShutterButton.setVisibility(View.VISIBLE); 298 299 mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); 300 updateFocusIndicator(); 301 302 // Initialize flash button 303 if (mParameters.getSupportedFlashModes() != null) { 304 mFlashButton = (FlashButton) findViewById(R.id.flash_button); 305 String flashMode = mPreferences.getString( 306 CameraSettings.KEY_FLASH_MODE, "auto"); 307 mFlashButton.setMode(flashMode); 308 mFlashButton.setVisibility(View.VISIBLE); 309 mFlashButton.setListener(this); 310 } 311 312 // Initialize GPS indicator. 313 mGpsIndicator = (ImageView) findViewById(R.id.gps_indicator); 314 mGpsIndicator.setImageResource(R.drawable.ic_camera_sym_gps); 315 316 ImageManager.ensureOSXCompatibleFolder(); 317 318 installIntentFilter(); 319 320 initializeFocusTone(); 321 322 initializeZoom(); 323 324 mFirstTimeInitialized = true; 325 } 326 327 private void updateThumbnailButton() { 328 // Update last image if URI is invalid and the storage is ready. 329 if (!mThumbController.isUriValid() && mPicturesRemaining >= 0) { 330 updateLastImage(); 331 } 332 mThumbController.updateDisplayIfNeeded(); 333 } 334 335 // If the activity is paused and resumed, this method will be called in 336 // onResume. 337 private void initializeSecondTime() { 338 // Start orientation listener as soon as possible because it takes 339 // some time to get first orientation. 340 mOrientationListener.enable(); 341 342 // Start location update if needed. 343 readPreference(); 344 if (mRecordLocation) startReceivingLocationUpdates(); 345 346 installIntentFilter(); 347 348 initializeFocusTone(); 349 350 checkStorage(); 351 352 if (!mIsImageCaptureIntent) { 353 updateThumbnailButton(); 354 } 355 } 356 357 private void initializeZoom() { 358 // Check if the phone has zoom capability. 359 String zoomState = mParameters.get(PARM_ZOOM_STATE); 360 if (zoomState == null) return; 361 362 mZoomValue = Double.parseDouble(mParameters.get(PARM_ZOOM_TO_LEVEL)); 363 mZoomMax = Double.parseDouble(mParameters.get(PARM_ZOOM_MAX)); 364 mZoomStep = Double.parseDouble(mParameters.get(PARM_ZOOM_STEP)); 365 mParameters.set(PARM_ZOOM_SPEED, ZOOM_SPEED); 366 mCameraDevice.setParameters(mParameters); 367 368 mGestureDetector = new GestureDetector(this, new ZoomGestureListener()); 369 mCameraDevice.setZoomCallback(mZoomCallback); 370 mZoomButtons = new ZoomButtonsController(mSurfaceView); 371 mZoomButtons.setAutoDismissed(true); 372 mZoomButtons.setZoomSpeed(100); 373 mZoomButtons.setOnZoomListener( 374 new ZoomButtonsController.OnZoomListener() { 375 public void onVisibilityChanged(boolean visible) { 376 if (visible) { 377 updateZoomButtonsEnabled(); 378 } 379 } 380 381 public void onZoom(boolean zoomIn) { 382 if (mZooming) return; 383 384 if (zoomIn) { 385 if (mZoomValue < mZoomMax) { 386 mZoomValue += mZoomStep; 387 zoomToLevel(ZOOM_CONTINUOUS); 388 } 389 } else { 390 if (mZoomValue > ZOOM_MIN) { 391 mZoomValue -= mZoomStep; 392 zoomToLevel(ZOOM_CONTINUOUS); 393 } 394 } 395 updateZoomButtonsEnabled(); 396 } 397 }); 398 } 399 400 private void zoomToLevel(String type) { 401 if (type == null) { 402 Log.e(TAG, "Zoom type is null."); 403 return; 404 } 405 if (mZoomValue > mZoomMax) mZoomValue = mZoomMax; 406 if (mZoomValue < ZOOM_MIN) mZoomValue = ZOOM_MIN; 407 408 // If the application sets a unchanged zoom value, the driver will stuck 409 // at the zoom state. This is a work-around to ensure the state is at 410 // "stop". 411 mParameters.set(PARM_ZOOM_STATE, ZOOM_STOP); 412 mCameraDevice.setParameters(mParameters); 413 414 mParameters.set(PARM_ZOOM_TO_LEVEL, Double.toString(mZoomValue)); 415 mParameters.set(PARM_ZOOM_STATE, type); 416 mCameraDevice.setParameters(mParameters); 417 418 if (ZOOM_CONTINUOUS.equals(type)) mZooming = true; 419 } 420 421 private void updateZoomButtonsEnabled() { 422 mZoomButtons.setZoomInEnabled(mZoomValue < mZoomMax); 423 mZoomButtons.setZoomOutEnabled(mZoomValue > ZOOM_MIN); 424 } 425 426 private class ZoomGestureListener extends 427 GestureDetector.SimpleOnGestureListener { 428 public boolean onDown(MotionEvent e) { 429 // Show zoom buttons only when preview is started and snapshot 430 // is not in progress. mZoomButtons may be null if it is not 431 // initialized. 432 if (!mPausing && isCameraIdle() && mPreviewing 433 && mZoomButtons != null) { 434 mZoomButtons.setVisible(true); 435 } 436 return true; 437 } 438 439 public boolean onDoubleTap(MotionEvent e) { 440 // Perform zoom only when preview is started and snapshot is not in 441 // progress. 442 if (mPausing || !isCameraIdle() || !mPreviewing 443 || mZoomButtons == null || mZooming) { 444 return false; 445 } 446 447 if (mZoomValue < mZoomMax) { 448 // Zoom in to the maximum. 449 while (mZoomValue < mZoomMax) { 450 mZoomValue += ZOOM_STEP_MIN; 451 zoomToLevel(ZOOM_IMMEDIATE); 452 // Wait for a while so we are not changing zoom too fast. 453 try { 454 Thread.currentThread().sleep(5); 455 } 456 catch (InterruptedException ex) { 457 } 458 } 459 } else { 460 // Zoom out to the minimum. 461 while (mZoomValue > ZOOM_MIN) { 462 mZoomValue -= ZOOM_STEP_MIN; 463 zoomToLevel(ZOOM_IMMEDIATE); 464 // Wait for a while so we are not changing zoom too fast. 465 try { 466 Thread.currentThread().sleep(5); 467 } 468 catch (InterruptedException ex) { 469 } 470 } 471 } 472 updateZoomButtonsEnabled(); 473 return true; 474 } 475 } 476 477 @Override 478 public boolean dispatchTouchEvent(MotionEvent m) { 479 if (!super.dispatchTouchEvent(m) && mGestureDetector != null) { 480 return mGestureDetector.onTouchEvent(m); 481 } 482 return true; 483 } 484 485 LocationListener [] mLocationListeners = new LocationListener[] { 486 new LocationListener(LocationManager.GPS_PROVIDER), 487 new LocationListener(LocationManager.NETWORK_PROVIDER) 488 }; 489 490 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 491 @Override 492 public void onReceive(Context context, Intent intent) { 493 String action = intent.getAction(); 494 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 495 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 496 || action.equals(Intent.ACTION_MEDIA_CHECKING) 497 || action.equals(Intent.ACTION_MEDIA_SCANNER_STARTED)) { 498 checkStorage(); 499 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 500 checkStorage(); 501 if (!mIsImageCaptureIntent) { 502 updateThumbnailButton(); 503 } 504 } 505 } 506 }; 507 508 private class LocationListener 509 implements android.location.LocationListener { 510 Location mLastLocation; 511 boolean mValid = false; 512 String mProvider; 513 514 public LocationListener(String provider) { 515 mProvider = provider; 516 mLastLocation = new Location(mProvider); 517 } 518 519 public void onLocationChanged(Location newLocation) { 520 if (newLocation.getLatitude() == 0.0 521 && newLocation.getLongitude() == 0.0) { 522 // Hack to filter out 0.0,0.0 locations 523 return; 524 } 525 // If GPS is available before start camera, we won't get status 526 // update so update GPS indicator when we receive data. 527 if (mRecordLocation 528 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 529 mGpsIndicator.setVisibility(View.VISIBLE); 530 } 531 mLastLocation.set(newLocation); 532 mValid = true; 533 } 534 535 public void onProviderEnabled(String provider) { 536 } 537 538 public void onProviderDisabled(String provider) { 539 mValid = false; 540 } 541 542 public void onStatusChanged( 543 String provider, int status, Bundle extras) { 544 switch(status) { 545 case LocationProvider.OUT_OF_SERVICE: 546 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 547 mValid = false; 548 if (mRecordLocation && 549 LocationManager.GPS_PROVIDER.equals(provider)) { 550 mGpsIndicator.setVisibility(View.INVISIBLE); 551 } 552 break; 553 } 554 } 555 } 556 557 public Location current() { 558 return mValid ? mLastLocation : null; 559 } 560 } 561 562 private final class OneShotPreviewCallback 563 implements android.hardware.Camera.PreviewCallback { 564 public void onPreviewFrame(byte[] data, 565 android.hardware.Camera camera) { 566 long now = System.currentTimeMillis(); 567 if (mJpegPictureCallbackTime != 0) { 568 mJpegPictureCallbackTimeLag = now - mJpegPictureCallbackTime; 569 Log.v(TAG, "mJpegPictureCallbackTimeLag = " 570 + mJpegPictureCallbackTimeLag + "ms"); 571 mJpegPictureCallbackTime = 0; 572 } else { 573 Log.v(TAG, "Got first frame"); 574 } 575 } 576 } 577 578 private final class ShutterCallback 579 implements android.hardware.Camera.ShutterCallback { 580 public void onShutter() { 581 mShutterCallbackTime = System.currentTimeMillis(); 582 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 583 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 584 clearFocusState(); 585 } 586 } 587 588 private final class RawPictureCallback implements PictureCallback { 589 public void onPictureTaken( 590 byte [] rawData, android.hardware.Camera camera) { 591 mRawPictureCallbackTime = System.currentTimeMillis(); 592 mShutterAndRawPictureCallbackTime = 593 mRawPictureCallbackTime - mShutterCallbackTime; 594 Log.v(TAG, "mShutterAndRawPictureCallbackTime = " 595 + mShutterAndRawPictureCallbackTime + "ms"); 596 } 597 } 598 599 private final class JpegPictureCallback implements PictureCallback { 600 Location mLocation; 601 602 public JpegPictureCallback(Location loc) { 603 mLocation = loc; 604 } 605 606 public void onPictureTaken( 607 final byte [] jpegData, final android.hardware.Camera camera) { 608 if (mPausing) { 609 return; 610 } 611 612 mJpegPictureCallbackTime = System.currentTimeMillis(); 613 mRawPictureAndJpegPictureCallbackTime = 614 mJpegPictureCallbackTime - mRawPictureCallbackTime; 615 Log.v(TAG, "mRawPictureAndJpegPictureCallbackTime = " 616 + mRawPictureAndJpegPictureCallbackTime + "ms"); 617 mImageCapture.storeImage(jpegData, camera, mLocation); 618 619 if (!mIsImageCaptureIntent) { 620 long delay = 1200 - ( 621 System.currentTimeMillis() - mRawPictureCallbackTime); 622 mHandler.sendEmptyMessageDelayed( 623 RESTART_PREVIEW, Math.max(delay, 0)); 624 } 625 } 626 } 627 628 private final class AutoFocusCallback 629 implements android.hardware.Camera.AutoFocusCallback { 630 public void onAutoFocus( 631 boolean focused, android.hardware.Camera camera) { 632 mFocusCallbackTime = System.currentTimeMillis(); 633 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 634 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 635 if (mFocusState == FOCUSING_SNAP_ON_FINISH) { 636 // Take the picture no matter focus succeeds or fails. No need 637 // to play the AF sound if we're about to play the shutter 638 // sound. 639 if (focused) { 640 mFocusState = FOCUS_SUCCESS; 641 } else { 642 mFocusState = FOCUS_FAIL; 643 } 644 mImageCapture.onSnap(); 645 } else if (mFocusState == FOCUSING) { 646 // User is half-pressing the focus key. Play the focus tone. 647 // Do not take the picture now. 648 ToneGenerator tg = mFocusToneGenerator; 649 if (tg != null) { 650 tg.startTone(ToneGenerator.TONE_PROP_BEEP2); 651 } 652 if (focused) { 653 mFocusState = FOCUS_SUCCESS; 654 } else { 655 mFocusState = FOCUS_FAIL; 656 } 657 } else if (mFocusState == FOCUS_NOT_STARTED) { 658 // User has released the focus key before focus completes. 659 // Do nothing. 660 } 661 updateFocusIndicator(); 662 } 663 } 664 665 private final class ErrorCallback 666 implements android.hardware.Camera.ErrorCallback { 667 public void onError(int error, android.hardware.Camera camera) { 668 if (error == android.hardware.Camera.CAMERA_ERROR_SERVER_DIED) { 669 mMediaServerDied = true; 670 Log.v(TAG, "media server died"); 671 } 672 } 673 } 674 675 private final class ZoomCallback 676 implements android.hardware.Camera.ZoomCallback { 677 public void onZoomUpdate(int zoomLevel, 678 android.hardware.Camera camera) { 679 mZoomValue = (double)zoomLevel / 1000; 680 mZooming = false; 681 } 682 } 683 684 private class ImageCapture { 685 686 private boolean mCancel = false; 687 688 private Uri mLastContentUri; 689 690 Bitmap mCaptureOnlyBitmap; 691 692 private void storeImage(byte[] data, Location loc) { 693 try { 694 long dateTaken = System.currentTimeMillis(); 695 String name = createName(dateTaken) + ".jpg"; 696 mLastContentUri = ImageManager.addImage( 697 mContentResolver, 698 name, 699 dateTaken, 700 loc, // location for the database goes here 701 0, // the dsp will use the right orientation so 702 // don't "double set it" 703 ImageManager.CAMERA_IMAGE_BUCKET_NAME, 704 name); 705 if (mLastContentUri == null) { 706 // this means we got an error 707 mCancel = true; 708 } 709 if (!mCancel) { 710 ImageManager.storeImage( 711 mLastContentUri, mContentResolver, 712 0, null, data); 713 ImageManager.setImageSize(mContentResolver, mLastContentUri, 714 new File(ImageManager.CAMERA_IMAGE_BUCKET_NAME, 715 name).length()); 716 } 717 } catch (Exception ex) { 718 Log.e(TAG, "Exception while compressing image.", ex); 719 } 720 } 721 722 public void storeImage(final byte[] data, 723 android.hardware.Camera camera, Location loc) { 724 if (!mIsImageCaptureIntent) { 725 storeImage(data, loc); 726 sendBroadcast(new Intent( 727 "com.android.camera.NEW_PICTURE", mLastContentUri)); 728 setLastPictureThumb(data, mImageCapture.getLastCaptureUri()); 729 mThumbController.updateDisplayIfNeeded(); 730 } else { 731 BitmapFactory.Options options = new BitmapFactory.Options(); 732 options.inSampleSize = 4; 733 mCaptureOnlyBitmap = BitmapFactory.decodeByteArray( 734 data, 0, data.length, options); 735 showPostCaptureAlert(); 736 } 737 } 738 739 /** 740 * Initiate the capture of an image. 741 */ 742 public void initiate() { 743 if (mCameraDevice == null) { 744 return; 745 } 746 747 mCancel = false; 748 749 capture(); 750 } 751 752 public Uri getLastCaptureUri() { 753 return mLastContentUri; 754 } 755 756 public Bitmap getLastBitmap() { 757 return mCaptureOnlyBitmap; 758 } 759 760 private void capture() { 761 mCaptureOnlyBitmap = null; 762 763 // Set rotation. 764 int orientation = mLastOrientation; 765 if (orientation != OrientationEventListener.ORIENTATION_UNKNOWN) { 766 orientation += 90; 767 } 768 orientation = ImageManager.roundOrientation(orientation); 769 Log.v(TAG, "mLastOrientation = " + mLastOrientation 770 + ", orientation = " + orientation); 771 mParameters.setRotation(orientation); 772 773 // Clear previous GPS location from the parameters. 774 mParameters.removeGpsData(); 775 776 // Set GPS location. 777 Location loc = mRecordLocation ? getCurrentLocation() : null; 778 if (loc != null) { 779 double lat = loc.getLatitude(); 780 double lon = loc.getLongitude(); 781 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 782 783 if (hasLatLon) { 784 mParameters.setGpsLatitude(lat); 785 mParameters.setGpsLongitude(lon); 786 if (loc.hasAltitude()) { 787 mParameters.setGpsAltitude(loc.getAltitude()); 788 } else { 789 // for NETWORK_PROVIDER location provider, we may have 790 // no altitude information, but the driver needs it, so 791 // we fake one. 792 mParameters.setGpsAltitude(0); 793 } 794 if (loc.getTime() != 0) { 795 // Location.getTime() is UTC in milliseconds. 796 // gps-timestamp is UTC in seconds. 797 long utcTimeSeconds = loc.getTime() / 1000; 798 mParameters.setGpsTimestamp(utcTimeSeconds); 799 } 800 } else { 801 loc = null; 802 } 803 } 804 805 mCameraDevice.setParameters(mParameters); 806 807 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 808 new JpegPictureCallback(loc)); 809 mPreviewing = false; 810 } 811 812 public void onSnap() { 813 // If we are already in the middle of taking a snapshot then ignore. 814 if (mPausing || mStatus == SNAPSHOT_IN_PROGRESS) { 815 return; 816 } 817 mCaptureStartTime = System.currentTimeMillis(); 818 819 // Don't check the filesystem here, we can't afford the latency. 820 // Instead, check the cached value which was calculated when the 821 // preview was restarted. 822 if (mPicturesRemaining < 1) { 823 updateStorageHint(mPicturesRemaining); 824 return; 825 } 826 827 mStatus = SNAPSHOT_IN_PROGRESS; 828 829 mImageCapture.initiate(); 830 } 831 832 private void clearLastBitmap() { 833 if (mCaptureOnlyBitmap != null) { 834 mCaptureOnlyBitmap.recycle(); 835 mCaptureOnlyBitmap = null; 836 } 837 } 838 } 839 840 private void setLastPictureThumb(byte[] data, Uri uri) { 841 BitmapFactory.Options options = new BitmapFactory.Options(); 842 options.inSampleSize = 16; 843 Bitmap lastPictureThumb = 844 BitmapFactory.decodeByteArray(data, 0, data.length, options); 845 mThumbController.setData(uri, lastPictureThumb); 846 } 847 848 private static String createName(long dateTaken) { 849 return DateFormat.format("yyyy-MM-dd kk.mm.ss", dateTaken).toString(); 850 } 851 852 @Override 853 public void onCreate(Bundle icicle) { 854 super.onCreate(icicle); 855 856 Window win = getWindow(); 857 win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 858 setContentView(R.layout.camera); 859 mSurfaceView = (VideoPreview) findViewById(R.id.camera_preview); 860 mViewFinderWidth = mSurfaceView.getLayoutParams().width; 861 mViewFinderHeight = mSurfaceView.getLayoutParams().height; 862 mPreferences = PreferenceManager.getDefaultSharedPreferences(this); 863 864 /* 865 * To reduce startup time, we start the preview in another thread. 866 * We make sure the preview is started at the end of onCreate. 867 */ 868 Thread startPreviewThread = new Thread(new Runnable() { 869 public void run() { 870 try { 871 mStartPreviewFail = false; 872 startPreview(); 873 } catch (CameraHardwareException e) { 874 mStartPreviewFail = true; 875 } 876 } 877 }); 878 startPreviewThread.start(); 879 880 // don't set mSurfaceHolder here. We have it set ONLY within 881 // surfaceChanged / surfaceDestroyed, other parts of the code 882 // assume that when it is set, the surface is also set. 883 SurfaceHolder holder = mSurfaceView.getHolder(); 884 holder.addCallback(this); 885 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 886 887 mIsImageCaptureIntent = isImageCaptureIntent(); 888 LayoutInflater inflater = getLayoutInflater(); 889 890 ViewGroup rootView = (ViewGroup) findViewById(R.id.camera); 891 if (mIsImageCaptureIntent) { 892 View controlBar = inflater.inflate( 893 R.layout.attach_camera_control, rootView); 894 controlBar.findViewById(R.id.btn_cancel).setOnClickListener(this); 895 controlBar.findViewById(R.id.btn_retake).setOnClickListener(this); 896 controlBar.findViewById(R.id.btn_done).setOnClickListener(this); 897 } else { 898 inflater.inflate(R.layout.camera_control, rootView); 899 mSwitcher = ((Switcher) findViewById(R.id.camera_switch)); 900 mSwitcher.setOnSwitchListener(this); 901 mSwitcher.addTouchView(findViewById(R.id.camera_switch_set)); 902 } 903 904 // Make sure preview is started. 905 try { 906 startPreviewThread.join(); 907 if (mStartPreviewFail) showCameraErrorAndFinish(); 908 } catch (InterruptedException ex) { 909 // ignore 910 } 911 } 912 913 @Override 914 public void onStart() { 915 super.onStart(); 916 if (!mIsImageCaptureIntent) { 917 mSwitcher.setSwitch(SWITCH_CAMERA); 918 } 919 } 920 921 private void checkStorage() { 922 if (ImageManager.isMediaScannerScanning(getContentResolver())) { 923 mPicturesRemaining = MenuHelper.NO_STORAGE_ERROR; 924 } else { 925 calculatePicturesRemaining(); 926 } 927 updateStorageHint(mPicturesRemaining); 928 } 929 930 public void onClick(View v) { 931 switch (v.getId()) { 932 case R.id.btn_retake: 933 hidePostCaptureAlert(); 934 restartPreview(); 935 break; 936 case R.id.review_thumbnail: 937 if (isCameraIdle()) { 938 viewLastImage(); 939 } 940 break; 941 case R.id.btn_done: 942 doAttach(); 943 break; 944 case R.id.btn_cancel: 945 doCancel(); 946 } 947 } 948 949 private void doAttach() { 950 if (mPausing) { 951 return; 952 } 953 Bitmap bitmap = mImageCapture.getLastBitmap(); 954 955 String cropValue = null; 956 Uri saveUri = null; 957 958 Bundle myExtras = getIntent().getExtras(); 959 if (myExtras != null) { 960 saveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 961 cropValue = myExtras.getString("crop"); 962 } 963 964 965 if (cropValue == null) { 966 // First handle the no crop case -- just return the value. If the 967 // caller specifies a "save uri" then write the data to it's 968 // stream. Otherwise, pass back a scaled down version of the bitmap 969 // directly in the extras. 970 if (saveUri != null) { 971 OutputStream outputStream = null; 972 try { 973 outputStream = mContentResolver.openOutputStream(saveUri); 974 bitmap.compress(Bitmap.CompressFormat.JPEG, 75, 975 outputStream); 976 outputStream.close(); 977 978 setResult(RESULT_OK); 979 finish(); 980 } catch (IOException ex) { 981 // ignore exception 982 } finally { 983 if (outputStream != null) { 984 try { 985 outputStream.close(); 986 } catch (IOException ex) { 987 // ignore exception 988 } 989 } 990 } 991 } else { 992 float scale = .5F; 993 Matrix m = new Matrix(); 994 m.setScale(scale, scale); 995 996 bitmap = Bitmap.createBitmap(bitmap, 0, 0, 997 bitmap.getWidth(), 998 bitmap.getHeight(), 999 m, true); 1000 1001 setResult(RESULT_OK, 1002 new Intent("inline-data").putExtra("data", bitmap)); 1003 finish(); 1004 } 1005 } else { 1006 // Save the image to a temp file and invoke the cropper 1007 Uri tempUri = null; 1008 FileOutputStream tempStream = null; 1009 try { 1010 File path = getFileStreamPath(sTempCropFilename); 1011 path.delete(); 1012 tempStream = openFileOutput(sTempCropFilename, 0); 1013 bitmap.compress(Bitmap.CompressFormat.JPEG, 75, tempStream); 1014 tempStream.close(); 1015 tempUri = Uri.fromFile(path); 1016 } catch (FileNotFoundException ex) { 1017 setResult(Activity.RESULT_CANCELED); 1018 finish(); 1019 return; 1020 } catch (IOException ex) { 1021 setResult(Activity.RESULT_CANCELED); 1022 finish(); 1023 return; 1024 } finally { 1025 if (tempStream != null) { 1026 try { 1027 tempStream.close(); 1028 } catch (IOException ex) { 1029 // ignore exception 1030 } 1031 } 1032 } 1033 1034 Bundle newExtras = new Bundle(); 1035 if (cropValue.equals("circle")) { 1036 newExtras.putString("circleCrop", "true"); 1037 } 1038 if (saveUri != null) { 1039 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, saveUri); 1040 } else { 1041 newExtras.putBoolean("return-data", true); 1042 } 1043 1044 Intent cropIntent = new Intent(); 1045 cropIntent.setClass(Camera.this, CropImage.class); 1046 cropIntent.setData(tempUri); 1047 cropIntent.putExtras(newExtras); 1048 1049 startActivityForResult(cropIntent, CROP_MSG); 1050 } 1051 } 1052 1053 private void doCancel() { 1054 setResult(RESULT_CANCELED, new Intent()); 1055 finish(); 1056 } 1057 1058 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1059 if (mPausing) { 1060 return; 1061 } 1062 switch (button.getId()) { 1063 case R.id.shutter_button: 1064 doFocus(pressed); 1065 break; 1066 } 1067 } 1068 1069 public void onShutterButtonClick(ShutterButton button) { 1070 if (mPausing) { 1071 return; 1072 } 1073 switch (button.getId()) { 1074 case R.id.shutter_button: 1075 doSnap(); 1076 break; 1077 } 1078 } 1079 1080 private OnScreenHint mStorageHint; 1081 1082 private void updateStorageHint(int remaining) { 1083 String noStorageText = null; 1084 1085 if (remaining == MenuHelper.NO_STORAGE_ERROR) { 1086 String state = Environment.getExternalStorageState(); 1087 if (state == Environment.MEDIA_CHECKING || 1088 ImageManager.isMediaScannerScanning(getContentResolver())) { 1089 noStorageText = getString(R.string.preparing_sd); 1090 } else { 1091 noStorageText = getString(R.string.no_storage); 1092 } 1093 } else if (remaining < 1) { 1094 noStorageText = getString(R.string.not_enough_space); 1095 } 1096 1097 if (noStorageText != null) { 1098 if (mStorageHint == null) { 1099 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1100 } else { 1101 mStorageHint.setText(noStorageText); 1102 } 1103 mStorageHint.show(); 1104 } else if (mStorageHint != null) { 1105 mStorageHint.cancel(); 1106 mStorageHint = null; 1107 } 1108 } 1109 1110 private void installIntentFilter() { 1111 // install an intent filter to receive SD card related events. 1112 IntentFilter intentFilter = 1113 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1114 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1115 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED); 1116 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1117 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1118 intentFilter.addDataScheme("file"); 1119 registerReceiver(mReceiver, intentFilter); 1120 mDidRegister = true; 1121 } 1122 1123 private void initializeFocusTone() { 1124 // Initialize focus tone generator. 1125 try { 1126 mFocusToneGenerator = new ToneGenerator( 1127 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1128 } catch (Throwable ex) { 1129 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1130 mFocusToneGenerator = null; 1131 } 1132 } 1133 1134 private void readPreference() { 1135 mRecordLocation = mPreferences.getBoolean( 1136 "pref_camera_recordlocation_key", false); 1137 mFocusMode = mPreferences.getString( 1138 CameraSettings.KEY_FOCUS_MODE, 1139 getString(R.string.pref_camera_focusmode_default)); 1140 } 1141 1142 @Override 1143 public void onResume() { 1144 super.onResume(); 1145 1146 mPausing = false; 1147 mJpegPictureCallbackTime = 0; 1148 mImageCapture = new ImageCapture(); 1149 1150 // Start the preview if it is not started. 1151 if (!mPreviewing && !mStartPreviewFail) { 1152 try { 1153 startPreview(); 1154 } catch (CameraHardwareException e) { 1155 showCameraErrorAndFinish(); 1156 return; 1157 } 1158 } 1159 1160 if (mSurfaceHolder != null) { 1161 // If first time initialization is not finished, put it in the 1162 // message queue. 1163 if (!mFirstTimeInitialized) { 1164 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1165 } else { 1166 initializeSecondTime(); 1167 } 1168 } 1169 1170 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 1171 } 1172 1173 private static ImageManager.DataLocation dataLocation() { 1174 return ImageManager.DataLocation.EXTERNAL; 1175 } 1176 1177 @Override 1178 protected void onPause() { 1179 mPausing = true; 1180 stopPreview(); 1181 // Close the camera now because other activities may need to use it. 1182 closeCamera(); 1183 1184 if (mFirstTimeInitialized) { 1185 mOrientationListener.disable(); 1186 mGpsIndicator.setVisibility(View.INVISIBLE); 1187 if (!mIsImageCaptureIntent) { 1188 mThumbController.storeData( 1189 ImageManager.getLastImageThumbPath()); 1190 } 1191 hidePostCaptureAlert(); 1192 } 1193 1194 if (mDidRegister) { 1195 unregisterReceiver(mReceiver); 1196 mDidRegister = false; 1197 } 1198 stopReceivingLocationUpdates(); 1199 1200 if (mFocusToneGenerator != null) { 1201 mFocusToneGenerator.release(); 1202 mFocusToneGenerator = null; 1203 } 1204 1205 if (mStorageHint != null) { 1206 mStorageHint.cancel(); 1207 mStorageHint = null; 1208 } 1209 1210 // If we are in an image capture intent and has taken 1211 // a picture, we just clear it in onPause. 1212 mImageCapture.clearLastBitmap(); 1213 mImageCapture = null; 1214 1215 // This is necessary to make the ZoomButtonsController unregister 1216 // its configuration change receiver. 1217 if (mZoomButtons != null) { 1218 mZoomButtons.setVisible(false); 1219 } 1220 1221 // Remove the messages in the event queue. 1222 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 1223 mHandler.removeMessages(RESTART_PREVIEW); 1224 mHandler.removeMessages(FIRST_TIME_INIT); 1225 1226 super.onPause(); 1227 } 1228 1229 @Override 1230 protected void onActivityResult( 1231 int requestCode, int resultCode, Intent data) { 1232 switch (requestCode) { 1233 case CROP_MSG: { 1234 Intent intent = new Intent(); 1235 if (data != null) { 1236 Bundle extras = data.getExtras(); 1237 if (extras != null) { 1238 intent.putExtras(extras); 1239 } 1240 } 1241 setResult(resultCode, intent); 1242 finish(); 1243 1244 File path = getFileStreamPath(sTempCropFilename); 1245 path.delete(); 1246 1247 break; 1248 } 1249 } 1250 } 1251 1252 private boolean canTakePicture() { 1253 return isCameraIdle() && mPreviewing && (mPicturesRemaining > 0); 1254 } 1255 1256 private void autoFocus() { 1257 // Initiate autofocus only when preview is started and snapshot is not 1258 // in progress. 1259 if (canTakePicture()) { 1260 Log.v(TAG, "Start autofocus."); 1261 if (mZoomButtons != null) mZoomButtons.setVisible(false); 1262 mFocusStartTime = System.currentTimeMillis(); 1263 mFocusState = FOCUSING; 1264 updateFocusIndicator(); 1265 mCameraDevice.autoFocus(mAutoFocusCallback); 1266 } 1267 } 1268 1269 private void clearFocusState() { 1270 mFocusState = FOCUS_NOT_STARTED; 1271 updateFocusIndicator(); 1272 } 1273 1274 private void updateFocusIndicator() { 1275 if (mFocusRectangle == null) return; 1276 1277 if (mFocusState == FOCUSING || mFocusState == FOCUSING_SNAP_ON_FINISH) { 1278 mFocusRectangle.showStart(); 1279 } else if (mFocusState == FOCUS_SUCCESS) { 1280 mFocusRectangle.showSuccess(); 1281 } else if (mFocusState == FOCUS_FAIL) { 1282 mFocusRectangle.showFail(); 1283 } else { 1284 mFocusRectangle.clear(); 1285 } 1286 } 1287 1288 @Override 1289 public boolean onKeyDown(int keyCode, KeyEvent event) { 1290 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 1291 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1292 1293 switch (keyCode) { 1294 case KeyEvent.KEYCODE_BACK: 1295 if (!isCameraIdle()) { 1296 // ignore backs while we're taking a picture 1297 return true; 1298 } 1299 break; 1300 case KeyEvent.KEYCODE_FOCUS: 1301 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1302 doFocus(true); 1303 } 1304 return true; 1305 case KeyEvent.KEYCODE_CAMERA: 1306 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1307 doSnap(); 1308 } 1309 return true; 1310 case KeyEvent.KEYCODE_DPAD_CENTER: 1311 // If we get a dpad center event without any focused view, move 1312 // the focus to the shutter button and press it. 1313 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1314 // Start auto-focus immediately to reduce shutter lag. After 1315 // the shutter button gets the focus, doFocus() will be 1316 // called again but it is fine. 1317 doFocus(true); 1318 if (mShutterButton.isInTouchMode()) { 1319 mShutterButton.requestFocusFromTouch(); 1320 } else { 1321 mShutterButton.requestFocus(); 1322 } 1323 mShutterButton.setPressed(true); 1324 } 1325 return true; 1326 } 1327 1328 return super.onKeyDown(keyCode, event); 1329 } 1330 1331 @Override 1332 public boolean onKeyUp(int keyCode, KeyEvent event) { 1333 switch (keyCode) { 1334 case KeyEvent.KEYCODE_FOCUS: 1335 if (mFirstTimeInitialized) { 1336 doFocus(false); 1337 } 1338 return true; 1339 } 1340 return super.onKeyUp(keyCode, event); 1341 } 1342 1343 private void doSnap() { 1344 // If the user has half-pressed the shutter and focus is completed, we 1345 // can take the photo right away. If the focus mode is infinity, we can 1346 // also take the photo. 1347 if (mFocusMode.equals(getString( 1348 R.string.pref_camera_focusmode_value_infinity)) 1349 || (mFocusState == FOCUS_SUCCESS 1350 || mFocusState == FOCUS_FAIL)) { 1351 if (mZoomButtons != null) mZoomButtons.setVisible(false); 1352 mImageCapture.onSnap(); 1353 } else if (mFocusState == FOCUSING) { 1354 // Half pressing the shutter (i.e. the focus button event) will 1355 // already have requested AF for us, so just request capture on 1356 // focus here. 1357 mFocusState = FOCUSING_SNAP_ON_FINISH; 1358 } else if (mFocusState == FOCUS_NOT_STARTED) { 1359 // Focus key down event is dropped for some reasons. Just ignore. 1360 } 1361 } 1362 1363 private void doFocus(boolean pressed) { 1364 // Do the focus if the mode is auto. No focus needed in infinity mode. 1365 if (mFocusMode.equals(getString( 1366 R.string.pref_camera_focusmode_value_auto))) { 1367 if (pressed) { // Focus key down. 1368 autoFocus(); 1369 } else { // Focus key up. 1370 if (mFocusState != FOCUSING_SNAP_ON_FINISH) { 1371 // User releases half-pressed focus key. 1372 clearFocusState(); 1373 } 1374 } 1375 } 1376 } 1377 1378 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1379 // Make sure we have a surface in the holder before proceeding. 1380 if (holder.getSurface() == null) { 1381 Log.d(TAG, "holder.getSurface() == null"); 1382 return; 1383 } 1384 1385 // The mCameraDevice will be null if it fails to connect to the camera 1386 // hardware. In this case we will show a dialog and then finish the 1387 // activity, so it's OK to ignore it. 1388 if (mCameraDevice == null) return; 1389 1390 mSurfaceHolder = holder; 1391 mViewFinderWidth = w; 1392 mViewFinderHeight = h; 1393 1394 // Sometimes surfaceChanged is called after onPause. Ignore it. 1395 if (mPausing || isFinishing()) return; 1396 1397 // Set preview display if the surface is being created. Preview was 1398 // already started. 1399 if (holder.isCreating()) { 1400 setPreviewDisplay(holder); 1401 } 1402 1403 // If first time initialization is not finished, send a message to do 1404 // it later. We want to finish surfaceChanged as soon as possible to let 1405 // user see preview first. 1406 if (!mFirstTimeInitialized) { 1407 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1408 } else { 1409 initializeSecondTime(); 1410 } 1411 } 1412 1413 public void surfaceCreated(SurfaceHolder holder) { 1414 } 1415 1416 public void surfaceDestroyed(SurfaceHolder holder) { 1417 stopPreview(); 1418 mSurfaceHolder = null; 1419 } 1420 1421 private void closeCamera() { 1422 if (mCameraDevice != null) { 1423 CameraHolder.instance().release(); 1424 mCameraDevice = null; 1425 mPreviewing = false; 1426 } 1427 } 1428 1429 private void ensureCameraDevice() throws CameraHardwareException { 1430 if (mCameraDevice == null) { 1431 mCameraDevice = CameraHolder.instance().open(); 1432 } 1433 } 1434 1435 private void updateLastImage() { 1436 IImageList list = ImageManager.makeImageList( 1437 mContentResolver, 1438 dataLocation(), 1439 ImageManager.INCLUDE_IMAGES, 1440 ImageManager.SORT_ASCENDING, 1441 ImageManager.CAMERA_IMAGE_BUCKET_ID); 1442 int count = list.getCount(); 1443 if (count > 0) { 1444 IImage image = list.getImageAt(count - 1); 1445 Uri uri = image.fullSizeImageUri(); 1446 mThumbController.setData(uri, image.miniThumbBitmap()); 1447 } else { 1448 mThumbController.setData(null, null); 1449 } 1450 list.close(); 1451 } 1452 1453 private void showCameraErrorAndFinish() { 1454 Resources ress = getResources(); 1455 Util.showFatalErrorAndFinish(Camera.this, 1456 ress.getString(R.string.camera_error_title), 1457 ress.getString(R.string.cannot_connect_camera)); 1458 } 1459 1460 private void restartPreview() { 1461 // make sure the surfaceview fills the whole screen when previewing 1462 mSurfaceView.setAspectRatio(VideoPreview.DONT_CARE); 1463 try { 1464 startPreview(); 1465 } catch (CameraHardwareException e) { 1466 showCameraErrorAndFinish(); 1467 return; 1468 } 1469 1470 // Calculate this in advance of each shot so we don't add to shutter 1471 // latency. It's true that someone else could write to the SD card in 1472 // the mean time and fill it, but that could have happened between the 1473 // shutter press and saving the JPEG too. 1474 calculatePicturesRemaining(); 1475 } 1476 1477 private void setPreviewDisplay(SurfaceHolder holder) { 1478 try { 1479 mCameraDevice.setPreviewDisplay(holder); 1480 } catch (Throwable ex) { 1481 closeCamera(); 1482 throw new RuntimeException("setPreviewDisplay failed", ex); 1483 } 1484 } 1485 1486 private void startPreview() throws CameraHardwareException { 1487 if (mPausing || isFinishing()) return; 1488 1489 ensureCameraDevice(); 1490 1491 // If we're previewing already, stop the preview first (this will blank 1492 // the screen). 1493 if (mPreviewing) stopPreview(); 1494 1495 setPreviewDisplay(mSurfaceHolder); 1496 1497 setCameraParameter(); 1498 1499 final long wallTimeStart = SystemClock.elapsedRealtime(); 1500 final long threadTimeStart = Debug.threadCpuTimeNanos(); 1501 1502 // Set one shot preview callback for latency measurement. 1503 mCameraDevice.setOneShotPreviewCallback(mOneShotPreviewCallback); 1504 mCameraDevice.setErrorCallback(mErrorCallback); 1505 1506 try { 1507 Log.v(TAG, "startPreview"); 1508 mCameraDevice.startPreview(); 1509 } catch (Throwable ex) { 1510 closeCamera(); 1511 throw new RuntimeException("startPreview failed", ex); 1512 } 1513 mPreviewing = true; 1514 mStatus = IDLE; 1515 1516 long threadTimeEnd = Debug.threadCpuTimeNanos(); 1517 long wallTimeEnd = SystemClock.elapsedRealtime(); 1518 if ((wallTimeEnd - wallTimeStart) > 3000) { 1519 Log.w(TAG, "startPreview() to " + (wallTimeEnd - wallTimeStart) 1520 + " ms. Thread time was" 1521 + (threadTimeEnd - threadTimeStart) / 1000000 + " ms."); 1522 } 1523 1524 // Currently the camera driver resets the zoom back to 1.0 after taking 1525 // a picture. But setting zoom to original value from the application 1526 // does not work now. Set the value to 1.0 in the app as a work-around. 1527 if (mZoomButtons != null && mZoomValue != ZOOM_MIN) { 1528 mZoomValue = ZOOM_MIN; 1529 zoomToLevel(ZOOM_IMMEDIATE); 1530 } 1531 } 1532 1533 private void stopPreview() { 1534 if (mCameraDevice != null && mPreviewing) { 1535 Log.v(TAG, "stopPreview"); 1536 mCameraDevice.stopPreview(); 1537 } 1538 mPreviewing = false; 1539 // If auto focus was in progress, it would have been canceled. 1540 clearFocusState(); 1541 } 1542 1543 private void setCameraParameter() { 1544 mParameters = mCameraDevice.getParameters(); 1545 1546 // Set preview size. 1547 mParameters.setPreviewSize(mViewFinderWidth, mViewFinderHeight); 1548 1549 // Set picture size. 1550 List<Size> pictureSizes = mParameters.getSupportedPictureSizes(); 1551 if (pictureSizes != null) { 1552 String str = mPreferences.getString( 1553 CameraSettings.KEY_PICTURE_SIZE, 1554 getString(R.string.pref_camera_picturesize_default)); 1555 int width = Integer.parseInt(str.substring(0, str.indexOf('x'))); 1556 int height = Integer.parseInt(str.substring(str.indexOf('x') + 1)); 1557 for (Size size: pictureSizes) { 1558 if (size.width == width && size.height == height) { 1559 mParameters.setPictureSize(width, height); 1560 break; 1561 } 1562 } 1563 } 1564 1565 // Set JPEG quality. 1566 String jpegQuality = mPreferences.getString( 1567 CameraSettings.KEY_JPEG_QUALITY, 1568 getString(R.string.pref_camera_jpegquality_default)); 1569 mParameters.setJpegQuality(Integer.parseInt(jpegQuality)); 1570 1571 // Set flash mode. 1572 if (mParameters.getSupportedFlashModes() != null) { 1573 String flashMode = mPreferences.getString( 1574 CameraSettings.KEY_FLASH_MODE, "auto"); 1575 mParameters.setFlashMode(flashMode); 1576 } 1577 1578 mCameraDevice.setParameters(mParameters); 1579 } 1580 1581 private void gotoGallery() { 1582 MenuHelper.gotoCameraImageGallery(this); 1583 } 1584 1585 private void viewLastImage() { 1586 if (mThumbController.isUriValid()) { 1587 Uri targetUri = mThumbController.getUri(); 1588 targetUri = targetUri.buildUpon().appendQueryParameter( 1589 "bucketId", ImageManager.CAMERA_IMAGE_BUCKET_ID).build(); 1590 Intent intent = new Intent(this, ReviewImage.class); 1591 intent.setData(targetUri); 1592 intent.putExtra(MediaStore.EXTRA_FULL_SCREEN, true); 1593 intent.putExtra(MediaStore.EXTRA_SHOW_ACTION_ICONS, true); 1594 intent.putExtra("com.android.camera.ReviewMode", true); 1595 try { 1596 startActivity(intent); 1597 } catch (ActivityNotFoundException ex) { 1598 Log.e(TAG, "review image fail", ex); 1599 } 1600 } else { 1601 Log.e(TAG, "Can't view last image."); 1602 } 1603 } 1604 1605 private void startReceivingLocationUpdates() { 1606 if (mLocationManager != null) { 1607 try { 1608 mLocationManager.requestLocationUpdates( 1609 LocationManager.NETWORK_PROVIDER, 1610 1000, 1611 0F, 1612 mLocationListeners[1]); 1613 } catch (java.lang.SecurityException ex) { 1614 Log.i(TAG, "fail to request location update, ignore", ex); 1615 } catch (IllegalArgumentException ex) { 1616 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1617 } 1618 try { 1619 mLocationManager.requestLocationUpdates( 1620 LocationManager.GPS_PROVIDER, 1621 1000, 1622 0F, 1623 mLocationListeners[0]); 1624 } catch (java.lang.SecurityException ex) { 1625 Log.i(TAG, "fail to request location update, ignore", ex); 1626 } catch (IllegalArgumentException ex) { 1627 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1628 } 1629 } 1630 } 1631 1632 private void stopReceivingLocationUpdates() { 1633 if (mLocationManager != null) { 1634 for (int i = 0; i < mLocationListeners.length; i++) { 1635 try { 1636 mLocationManager.removeUpdates(mLocationListeners[i]); 1637 } catch (Exception ex) { 1638 Log.i(TAG, "fail to remove location listners, ignore", ex); 1639 } 1640 } 1641 } 1642 } 1643 1644 private Location getCurrentLocation() { 1645 // go in best to worst order 1646 for (int i = 0; i < mLocationListeners.length; i++) { 1647 Location l = mLocationListeners[i].current(); 1648 if (l != null) return l; 1649 } 1650 return null; 1651 } 1652 1653 private boolean isCameraIdle() { 1654 return mStatus == IDLE && mFocusState == FOCUS_NOT_STARTED; 1655 } 1656 1657 private boolean isImageCaptureIntent() { 1658 String action = getIntent().getAction(); 1659 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 1660 } 1661 1662 private void showPostCaptureAlert() { 1663 if (mIsImageCaptureIntent) { 1664 findViewById(R.id.shutter_button).setVisibility(View.INVISIBLE); 1665 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1666 for (int id : pickIds) { 1667 View button = findViewById(id); 1668 ((View) button.getParent()).setVisibility(View.VISIBLE); 1669 } 1670 } 1671 } 1672 1673 private void hidePostCaptureAlert() { 1674 if (mIsImageCaptureIntent) { 1675 findViewById(R.id.shutter_button).setVisibility(View.VISIBLE); 1676 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1677 for (int id : pickIds) { 1678 View button = findViewById(id); 1679 ((View) button.getParent()).setVisibility(View.GONE); 1680 } 1681 } 1682 } 1683 1684 private int calculatePicturesRemaining() { 1685 mPicturesRemaining = MenuHelper.calculatePicturesRemaining(); 1686 return mPicturesRemaining; 1687 } 1688 1689 @Override 1690 public boolean onPrepareOptionsMenu(Menu menu) { 1691 super.onPrepareOptionsMenu(menu); 1692 1693 for (int i = 1; i <= MenuHelper.MENU_ITEM_MAX; i++) { 1694 menu.setGroupVisible(i, false); 1695 } 1696 1697 // Only show the menu when camera is idle. 1698 if (isCameraIdle()) { 1699 menu.setGroupVisible(MenuHelper.GENERIC_ITEM, true); 1700 menu.setGroupVisible(MenuHelper.IMAGE_MODE_ITEM, true); 1701 } 1702 1703 return true; 1704 } 1705 1706 @Override 1707 public boolean onCreateOptionsMenu(Menu menu) { 1708 super.onCreateOptionsMenu(menu); 1709 1710 if (mIsImageCaptureIntent) { 1711 // No options menu for attach mode. 1712 return false; 1713 } else { 1714 addBaseMenuItems(menu); 1715 } 1716 return true; 1717 } 1718 1719 private void addBaseMenuItems(Menu menu) { 1720 MenuHelper.addSwitchModeMenuItem(menu, this, true); 1721 { 1722 MenuItem gallery = menu.add( 1723 MenuHelper.IMAGE_MODE_ITEM, MENU_GALLERY_PHOTOS, 0, 1724 R.string.camera_gallery_photos_text) 1725 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1726 public boolean onMenuItemClick(MenuItem item) { 1727 gotoGallery(); 1728 return true; 1729 } 1730 }); 1731 gallery.setIcon(android.R.drawable.ic_menu_gallery); 1732 mGalleryItems.add(gallery); 1733 } 1734 { 1735 MenuItem gallery = menu.add( 1736 MenuHelper.VIDEO_MODE_ITEM, MENU_GALLERY_VIDEOS, 0, 1737 R.string.camera_gallery_photos_text) 1738 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1739 public boolean onMenuItemClick(MenuItem item) { 1740 gotoGallery(); 1741 return true; 1742 } 1743 }); 1744 gallery.setIcon(android.R.drawable.ic_menu_gallery); 1745 mGalleryItems.add(gallery); 1746 } 1747 1748 MenuItem item = menu.add(MenuHelper.GENERIC_ITEM, MENU_SETTINGS, 1749 0, R.string.settings) 1750 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1751 public boolean onMenuItemClick(MenuItem item) { 1752 // Keep the camera instance for a while. 1753 // This avoids re-opening the camera and saves time. 1754 CameraHolder.instance().keep(); 1755 1756 Intent intent = new Intent(); 1757 intent.setClass(Camera.this, CameraSettings.class); 1758 startActivity(intent); 1759 return true; 1760 } 1761 }); 1762 item.setIcon(android.R.drawable.ic_menu_preferences); 1763 } 1764 1765 public boolean onSwitchChanged(Switcher source, boolean onOff) { 1766 if (onOff == SWITCH_VIDEO) { 1767 if (!isCameraIdle()) return false; 1768 MenuHelper.gotoVideoMode(this); 1769 finish(); 1770 } 1771 return true; 1772 } 1773 1774 public void onFlashModeChanged(String modeString) { 1775 mParameters.setFlashMode(modeString); 1776 mCameraDevice.setParameters(mParameters); 1777 SharedPreferences.Editor editor = mPreferences.edit(); 1778 editor.putString(CameraSettings.KEY_FLASH_MODE, modeString); 1779 editor.commit(); 1780 } 1781} 1782 1783class FocusRectangle extends View { 1784 1785 @SuppressWarnings("unused") 1786 private static final String TAG = "FocusRectangle"; 1787 1788 public FocusRectangle(Context context, AttributeSet attrs) { 1789 super(context, attrs); 1790 } 1791 1792 private void setDrawable(int resid) { 1793 setBackgroundDrawable(getResources().getDrawable(resid)); 1794 } 1795 1796 public void showStart() { 1797 setDrawable(R.drawable.focus_focusing); 1798 } 1799 1800 public void showSuccess() { 1801 setDrawable(R.drawable.focus_focused); 1802 } 1803 1804 public void showFail() { 1805 setDrawable(R.drawable.focus_focus_failed); 1806 } 1807 1808 public void clear() { 1809 setBackgroundDrawable(null); 1810 } 1811} 1812 1813// FlashButton changes state every time it is clicked. 1814// The ModeChangeListener notifies that event. 1815class FlashButton extends ImageView implements View.OnClickListener { 1816 private static final String TAG = "FlashButton"; 1817 1818 private static final int MODE_OFF = 0; 1819 private static final int MODE_ON = 1; 1820 private static final int MODE_AUTO = 2; 1821 1822 private static final String[] MODE_STRINGS = new String[] { 1823 "off", "on", "auto" 1824 }; 1825 1826 private static final int[] FLASH_IMAGES = new int[] { 1827 R.drawable.flash_off, 1828 R.drawable.flash_on, 1829 R.drawable.flash_auto 1830 }; 1831 1832 private int mCurrentMode; 1833 private ModeChangeListener mListener; 1834 1835 public interface ModeChangeListener { 1836 public void onFlashModeChanged(String modeString); 1837 } 1838 public FlashButton(Context context, AttributeSet attrs) { 1839 super(context, attrs); 1840 updateMode(MODE_AUTO); 1841 setOnClickListener(this); 1842 } 1843 1844 public void setMode(String modeString) { 1845 for (int i = 0; i < MODE_STRINGS.length; i++) { 1846 if (MODE_STRINGS[i].equals(modeString)) { 1847 updateModeIfNecessary(i); 1848 return; 1849 } 1850 } 1851 Log.w(TAG, "Unknown mode: " + modeString); 1852 } 1853 1854 public void setListener(ModeChangeListener listener) { 1855 mListener = listener; 1856 } 1857 1858 public void onClick(View v) { 1859 int nextMode = (mCurrentMode + 1) % FLASH_IMAGES.length; 1860 updateMode(nextMode); 1861 } 1862 1863 private void updateModeIfNecessary(int mode) { 1864 if (mode == mCurrentMode) return; 1865 if (mode < 0 || mode >= FLASH_IMAGES.length) { 1866 return; 1867 } 1868 updateMode(mode); 1869 } 1870 1871 private void updateMode(int mode) { 1872 mCurrentMode = mode; 1873 setImageResource(FLASH_IMAGES[mode]); 1874 if (mListener != null) { 1875 mListener.onFlashModeChanged(MODE_STRINGS[mode]); 1876 } 1877 } 1878} 1879