Camera.java revision c6e3c7823339031096af937464cb528f53e045cf
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.ContentProviderClient; 23import android.content.ContentResolver; 24import android.content.Context; 25import android.content.Intent; 26import android.content.IntentFilter; 27import android.content.SharedPreferences; 28import android.content.SharedPreferences.Editor; 29import android.content.res.Configuration; 30import android.content.res.Resources; 31import android.graphics.Bitmap; 32import android.graphics.BitmapFactory; 33import android.hardware.Camera.CameraInfo; 34import android.hardware.Camera.Parameters; 35import android.hardware.Camera.PictureCallback; 36import android.hardware.Camera.Size; 37import android.location.Location; 38import android.location.LocationManager; 39import android.location.LocationProvider; 40import android.media.AudioManager; 41import android.media.CameraProfile; 42import android.media.ToneGenerator; 43import android.net.Uri; 44import android.os.Build; 45import android.os.Bundle; 46import android.os.Debug; 47import android.os.Environment; 48import android.os.Handler; 49import android.os.Looper; 50import android.os.Message; 51import android.os.MessageQueue; 52import android.os.SystemClock; 53import android.provider.MediaStore; 54import android.provider.Settings; 55import android.util.AttributeSet; 56import android.util.Log; 57import android.view.Display; 58import android.view.GestureDetector; 59import android.view.KeyEvent; 60import android.view.LayoutInflater; 61import android.view.Menu; 62import android.view.MenuItem; 63import android.view.MotionEvent; 64import android.view.OrientationEventListener; 65import android.view.SurfaceHolder; 66import android.view.SurfaceView; 67import android.view.View; 68import android.view.ViewGroup; 69import android.view.Window; 70import android.view.WindowManager; 71import android.view.MenuItem.OnMenuItemClickListener; 72import android.widget.FrameLayout; 73import android.widget.ImageView; 74 75import com.android.camera.gallery.IImage; 76import com.android.camera.gallery.IImageList; 77import com.android.camera.ui.CameraHeadUpDisplay; 78import com.android.camera.ui.GLRootView; 79import com.android.camera.ui.HeadUpDisplay; 80import com.android.camera.ui.ZoomControllerListener; 81 82import java.io.File; 83import java.io.FileNotFoundException; 84import java.io.FileOutputStream; 85import java.io.IOException; 86import java.io.OutputStream; 87import java.text.SimpleDateFormat; 88import java.util.ArrayList; 89import java.util.Collections; 90import java.util.Date; 91import java.util.HashMap; 92import java.util.List; 93 94/** The Camera activity which can preview and take pictures. */ 95public class Camera extends NoSearchActivity implements View.OnClickListener, 96 ShutterButton.OnShutterButtonListener, SurfaceHolder.Callback, 97 Switcher.OnSwitchListener { 98 99 private static final String TAG = "camera"; 100 101 private static final int CROP_MSG = 1; 102 private static final int FIRST_TIME_INIT = 2; 103 private static final int RESTART_PREVIEW = 3; 104 private static final int CLEAR_SCREEN_DELAY = 4; 105 private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 5; 106 107 // The subset of parameters we need to update in setCameraParameters(). 108 private static final int UPDATE_PARAM_INITIALIZE = 1; 109 private static final int UPDATE_PARAM_ZOOM = 2; 110 private static final int UPDATE_PARAM_PREFERENCE = 4; 111 private static final int UPDATE_PARAM_ALL = -1; 112 113 // When setCameraParametersWhenIdle() is called, we accumulate the subsets 114 // needed to be updated in mUpdateSet. 115 private int mUpdateSet; 116 117 // The brightness settings used when it is set to automatic in the system. 118 // The reason why it is set to 0.7 is just because 1.0 is too bright. 119 private static final float DEFAULT_CAMERA_BRIGHTNESS = 0.7f; 120 121 private static final int SCREEN_DELAY = 2 * 60 * 1000; 122 private static final int FOCUS_BEEP_VOLUME = 100; 123 124 private static final int ZOOM_STOPPED = 0; 125 private static final int ZOOM_START = 1; 126 private static final int ZOOM_STOPPING = 2; 127 128 private int mZoomState = ZOOM_STOPPED; 129 private boolean mSmoothZoomSupported = false; 130 private int mZoomValue; // The current zoom value. 131 private int mZoomMax; 132 private int mTargetZoomValue; 133 134 private Parameters mParameters; 135 private Parameters mInitialParams; 136 137 private MyOrientationEventListener mOrientationListener; 138 // The device orientation in degrees. Default is unknown. 139 private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 140 // The orientation compensation for icons and thumbnails. 141 private int mOrientationCompensation = 0; 142 private ComboPreferences mPreferences; 143 144 private static final int IDLE = 1; 145 private static final int SNAPSHOT_IN_PROGRESS = 2; 146 147 private static final boolean SWITCH_CAMERA = true; 148 private static final boolean SWITCH_VIDEO = false; 149 150 private int mStatus = IDLE; 151 private static final String sTempCropFilename = "crop-temp"; 152 153 private android.hardware.Camera mCameraDevice; 154 private ContentProviderClient mMediaProviderClient; 155 private SurfaceView mSurfaceView; 156 private SurfaceHolder mSurfaceHolder = null; 157 private ShutterButton mShutterButton; 158 private FocusRectangle mFocusRectangle; 159 private ToneGenerator mFocusToneGenerator; 160 private GestureDetector mGestureDetector; 161 private Switcher mSwitcher; 162 private boolean mStartPreviewFail = false; 163 164 private GLRootView mGLRootView; 165 166 // mPostCaptureAlert, mLastPictureButton, mThumbController 167 // are non-null only if isImageCaptureIntent() is true. 168 private ImageView mLastPictureButton; 169 private ThumbnailController mThumbController; 170 171 // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. 172 private String mCropValue; 173 private Uri mSaveUri; 174 175 private ImageCapture mImageCapture = null; 176 177 private boolean mPreviewing; 178 private boolean mPausing; 179 private boolean mFirstTimeInitialized; 180 private boolean mIsImageCaptureIntent; 181 private boolean mRecordLocation; 182 183 private static final int FOCUS_NOT_STARTED = 0; 184 private static final int FOCUSING = 1; 185 private static final int FOCUSING_SNAP_ON_FINISH = 2; 186 private static final int FOCUS_SUCCESS = 3; 187 private static final int FOCUS_FAIL = 4; 188 private int mFocusState = FOCUS_NOT_STARTED; 189 190 private ContentResolver mContentResolver; 191 private boolean mDidRegister = false; 192 193 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 194 195 private LocationManager mLocationManager = null; 196 197 private final ShutterCallback mShutterCallback = new ShutterCallback(); 198 private final PostViewPictureCallback mPostViewPictureCallback = 199 new PostViewPictureCallback(); 200 private final RawPictureCallback mRawPictureCallback = 201 new RawPictureCallback(); 202 private final AutoFocusCallback mAutoFocusCallback = 203 new AutoFocusCallback(); 204 private final ZoomListener mZoomListener = new ZoomListener(); 205 // Use the ErrorCallback to capture the crash count 206 // on the mediaserver 207 private final ErrorCallback mErrorCallback = new ErrorCallback(); 208 209 private long mFocusStartTime; 210 private long mFocusCallbackTime; 211 private long mCaptureStartTime; 212 private long mShutterCallbackTime; 213 private long mPostViewPictureCallbackTime; 214 private long mRawPictureCallbackTime; 215 private long mJpegPictureCallbackTime; 216 private int mPicturesRemaining; 217 218 // These latency time are for the CameraLatency test. 219 public long mAutoFocusTime; 220 public long mShutterLag; 221 public long mShutterToPictureDisplayedTime; 222 public long mPictureDisplayedToJpegCallbackTime; 223 public long mJpegCallbackFinishTime; 224 225 // Add for test 226 public static boolean mMediaServerDied = false; 227 228 // Focus mode. Options are pref_camera_focusmode_entryvalues. 229 private String mFocusMode; 230 private String mSceneMode; 231 232 private final Handler mHandler = new MainHandler(); 233 private CameraHeadUpDisplay mHeadUpDisplay; 234 235 // multiple cameras support 236 private int mNumberOfCameras; 237 private int mCameraId; 238 239 /** 240 * This Handler is used to post message back onto the main thread of the 241 * application 242 */ 243 private class MainHandler extends Handler { 244 @Override 245 public void handleMessage(Message msg) { 246 switch (msg.what) { 247 case RESTART_PREVIEW: { 248 restartPreview(); 249 if (mJpegPictureCallbackTime != 0) { 250 long now = System.currentTimeMillis(); 251 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 252 Log.v(TAG, "mJpegCallbackFinishTime = " 253 + mJpegCallbackFinishTime + "ms"); 254 mJpegPictureCallbackTime = 0; 255 } 256 break; 257 } 258 259 case CLEAR_SCREEN_DELAY: { 260 getWindow().clearFlags( 261 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 262 break; 263 } 264 265 case FIRST_TIME_INIT: { 266 initializeFirstTime(); 267 break; 268 } 269 270 case SET_CAMERA_PARAMETERS_WHEN_IDLE: { 271 setCameraParametersWhenIdle(0); 272 break; 273 } 274 } 275 } 276 } 277 278 private void resetExposureCompensation() { 279 String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, 280 CameraSettings.EXPOSURE_DEFAULT_VALUE); 281 if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { 282 Editor editor = mPreferences.edit(); 283 editor.putString(CameraSettings.KEY_EXPOSURE, "0"); 284 editor.apply(); 285 if (mHeadUpDisplay != null) { 286 mHeadUpDisplay.reloadPreferences(); 287 } 288 } 289 } 290 291 private void keepMediaProviderInstance() { 292 // We want to keep a reference to MediaProvider in camera's lifecycle. 293 // TODO: Utilize mMediaProviderClient instance to replace 294 // ContentResolver calls. 295 if (mMediaProviderClient == null) { 296 mMediaProviderClient = getContentResolver() 297 .acquireContentProviderClient(MediaStore.AUTHORITY); 298 } 299 } 300 301 // Snapshots can only be taken after this is called. It should be called 302 // once only. We could have done these things in onCreate() but we want to 303 // make preview screen appear as soon as possible. 304 private void initializeFirstTime() { 305 if (mFirstTimeInitialized) return; 306 307 // Create orientation listenter. This should be done first because it 308 // takes some time to get first orientation. 309 mOrientationListener = new MyOrientationEventListener(Camera.this); 310 mOrientationListener.enable(); 311 312 // Initialize location sevice. 313 mLocationManager = (LocationManager) 314 getSystemService(Context.LOCATION_SERVICE); 315 mRecordLocation = RecordLocationPreference.get( 316 mPreferences, getContentResolver()); 317 if (mRecordLocation) startReceivingLocationUpdates(); 318 319 keepMediaProviderInstance(); 320 checkStorage(); 321 322 // Initialize last picture button. 323 mContentResolver = getContentResolver(); 324 if (!mIsImageCaptureIntent) { 325 findViewById(R.id.camera_switch).setOnClickListener(this); 326 mLastPictureButton = 327 (ImageView) findViewById(R.id.review_thumbnail); 328 mLastPictureButton.setOnClickListener(this); 329 mThumbController = new ThumbnailController( 330 getResources(), mLastPictureButton, mContentResolver); 331 mThumbController.loadData(ImageManager.getLastImageThumbPath()); 332 // Update last image thumbnail. 333 updateThumbnailButton(); 334 } 335 336 // Initialize shutter button. 337 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 338 mShutterButton.setOnShutterButtonListener(this); 339 mShutterButton.setVisibility(View.VISIBLE); 340 341 mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); 342 updateFocusIndicator(); 343 344 initializeScreenBrightness(); 345 installIntentFilter(); 346 initializeFocusTone(); 347 initializeZoom(); 348 mHeadUpDisplay = new CameraHeadUpDisplay(this); 349 mHeadUpDisplay.setListener(new MyHeadUpDisplayListener()); 350 initializeHeadUpDisplay(); 351 mFirstTimeInitialized = true; 352 changeHeadUpDisplayState(); 353 addIdleHandler(); 354 } 355 356 private void addIdleHandler() { 357 MessageQueue queue = Looper.myQueue(); 358 queue.addIdleHandler(new MessageQueue.IdleHandler() { 359 public boolean queueIdle() { 360 ImageManager.ensureOSXCompatibleFolder(); 361 return false; 362 } 363 }); 364 } 365 366 private void updateThumbnailButton() { 367 // Update last image if URI is invalid and the storage is ready. 368 if (!mThumbController.isUriValid() && mPicturesRemaining >= 0) { 369 updateLastImage(); 370 } 371 mThumbController.updateDisplayIfNeeded(); 372 } 373 374 // If the activity is paused and resumed, this method will be called in 375 // onResume. 376 private void initializeSecondTime() { 377 // Start orientation listener as soon as possible because it takes 378 // some time to get first orientation. 379 mOrientationListener.enable(); 380 381 // Start location update if needed. 382 mRecordLocation = RecordLocationPreference.get( 383 mPreferences, getContentResolver()); 384 if (mRecordLocation) startReceivingLocationUpdates(); 385 386 installIntentFilter(); 387 initializeFocusTone(); 388 initializeZoom(); 389 changeHeadUpDisplayState(); 390 391 keepMediaProviderInstance(); 392 checkStorage(); 393 394 if (!mIsImageCaptureIntent) { 395 updateThumbnailButton(); 396 } 397 } 398 399 private void initializeZoom() { 400 if (!mParameters.isZoomSupported()) return; 401 402 mZoomMax = mParameters.getMaxZoom(); 403 mSmoothZoomSupported = mParameters.isSmoothZoomSupported(); 404 mGestureDetector = new GestureDetector(this, new ZoomGestureListener()); 405 406 mCameraDevice.setZoomChangeListener(mZoomListener); 407 } 408 409 private void onZoomValueChanged(int index) { 410 if (mSmoothZoomSupported) { 411 if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { 412 mTargetZoomValue = index; 413 if (mZoomState == ZOOM_START) { 414 mZoomState = ZOOM_STOPPING; 415 mCameraDevice.stopSmoothZoom(); 416 } 417 } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { 418 mTargetZoomValue = index; 419 mCameraDevice.startSmoothZoom(index); 420 mZoomState = ZOOM_START; 421 } 422 } else { 423 mZoomValue = index; 424 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 425 } 426 } 427 428 private float[] getZoomRatios() { 429 if(!mParameters.isZoomSupported()) return null; 430 List<Integer> zoomRatios = mParameters.getZoomRatios(); 431 float result[] = new float[zoomRatios.size()]; 432 for (int i = 0, n = result.length; i < n; ++i) { 433 result[i] = (float) zoomRatios.get(i) / 100f; 434 } 435 return result; 436 } 437 438 private class ZoomGestureListener extends 439 GestureDetector.SimpleOnGestureListener { 440 441 @Override 442 public boolean onDoubleTap(MotionEvent e) { 443 // Perform zoom only when preview is started and snapshot is not in 444 // progress. 445 if (mPausing || !isCameraIdle() || !mPreviewing 446 || mZoomState != ZOOM_STOPPED) { 447 return false; 448 } 449 450 if (mZoomValue < mZoomMax) { 451 // Zoom in to the maximum. 452 mZoomValue = mZoomMax; 453 } else { 454 mZoomValue = 0; 455 } 456 457 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 458 459 mHeadUpDisplay.setZoomIndex(mZoomValue); 460 return true; 461 } 462 } 463 464 @Override 465 public boolean dispatchTouchEvent(MotionEvent m) { 466 if (!super.dispatchTouchEvent(m) && mGestureDetector != null) { 467 return mGestureDetector.onTouchEvent(m); 468 } 469 return true; 470 } 471 472 LocationListener [] mLocationListeners = new LocationListener[] { 473 new LocationListener(LocationManager.GPS_PROVIDER), 474 new LocationListener(LocationManager.NETWORK_PROVIDER) 475 }; 476 477 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 478 @Override 479 public void onReceive(Context context, Intent intent) { 480 String action = intent.getAction(); 481 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 482 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 483 || action.equals(Intent.ACTION_MEDIA_CHECKING)) { 484 checkStorage(); 485 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 486 checkStorage(); 487 if (!mIsImageCaptureIntent) { 488 updateThumbnailButton(); 489 } 490 } 491 } 492 }; 493 494 private class LocationListener 495 implements android.location.LocationListener { 496 Location mLastLocation; 497 boolean mValid = false; 498 String mProvider; 499 500 public LocationListener(String provider) { 501 mProvider = provider; 502 mLastLocation = new Location(mProvider); 503 } 504 505 public void onLocationChanged(Location newLocation) { 506 if (newLocation.getLatitude() == 0.0 507 && newLocation.getLongitude() == 0.0) { 508 // Hack to filter out 0.0,0.0 locations 509 return; 510 } 511 // If GPS is available before start camera, we won't get status 512 // update so update GPS indicator when we receive data. 513 if (mRecordLocation 514 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 515 if (mHeadUpDisplay != null) { 516 mHeadUpDisplay.setGpsHasSignal(true); 517 } 518 } 519 mLastLocation.set(newLocation); 520 mValid = true; 521 } 522 523 public void onProviderEnabled(String provider) { 524 } 525 526 public void onProviderDisabled(String provider) { 527 mValid = false; 528 } 529 530 public void onStatusChanged( 531 String provider, int status, Bundle extras) { 532 switch(status) { 533 case LocationProvider.OUT_OF_SERVICE: 534 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 535 mValid = false; 536 if (mRecordLocation && 537 LocationManager.GPS_PROVIDER.equals(provider)) { 538 if (mHeadUpDisplay != null) { 539 mHeadUpDisplay.setGpsHasSignal(false); 540 } 541 } 542 break; 543 } 544 } 545 } 546 547 public Location current() { 548 return mValid ? mLastLocation : null; 549 } 550 } 551 552 private final class ShutterCallback 553 implements android.hardware.Camera.ShutterCallback { 554 public void onShutter() { 555 mShutterCallbackTime = System.currentTimeMillis(); 556 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 557 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 558 clearFocusState(); 559 } 560 } 561 562 private final class PostViewPictureCallback implements PictureCallback { 563 public void onPictureTaken( 564 byte [] data, android.hardware.Camera camera) { 565 mPostViewPictureCallbackTime = System.currentTimeMillis(); 566 Log.v(TAG, "mShutterToPostViewCallbackTime = " 567 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 568 + "ms"); 569 } 570 } 571 572 private final class RawPictureCallback implements PictureCallback { 573 public void onPictureTaken( 574 byte [] rawData, android.hardware.Camera camera) { 575 mRawPictureCallbackTime = System.currentTimeMillis(); 576 Log.v(TAG, "mShutterToRawCallbackTime = " 577 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 578 } 579 } 580 581 private final class JpegPictureCallback implements PictureCallback { 582 Location mLocation; 583 584 public JpegPictureCallback(Location loc) { 585 mLocation = loc; 586 } 587 588 public void onPictureTaken( 589 final byte [] jpegData, final android.hardware.Camera camera) { 590 if (mPausing) { 591 return; 592 } 593 594 mJpegPictureCallbackTime = System.currentTimeMillis(); 595 // If postview callback has arrived, the captured image is displayed 596 // in postview callback. If not, the captured image is displayed in 597 // raw picture callback. 598 if (mPostViewPictureCallbackTime != 0) { 599 mShutterToPictureDisplayedTime = 600 mPostViewPictureCallbackTime - mShutterCallbackTime; 601 mPictureDisplayedToJpegCallbackTime = 602 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 603 } else { 604 mShutterToPictureDisplayedTime = 605 mRawPictureCallbackTime - mShutterCallbackTime; 606 mPictureDisplayedToJpegCallbackTime = 607 mJpegPictureCallbackTime - mRawPictureCallbackTime; 608 } 609 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 610 + mPictureDisplayedToJpegCallbackTime + "ms"); 611 mHeadUpDisplay.setEnabled(true); 612 613 if (!mIsImageCaptureIntent) { 614 // We want to show the taken picture for a while, so we wait 615 // for at least 1.2 second before restarting the preview. 616 long delay = 1200 - mPictureDisplayedToJpegCallbackTime; 617 if (delay < 0) { 618 restartPreview(); 619 } else { 620 mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay); 621 } 622 } 623 mImageCapture.storeImage(jpegData, camera, mLocation); 624 625 // Calculate this in advance of each shot so we don't add to shutter 626 // latency. It's true that someone else could write to the SD card in 627 // the mean time and fill it, but that could have happened between the 628 // shutter press and saving the JPEG too. 629 calculatePicturesRemaining(); 630 631 if (mPicturesRemaining < 1) { 632 updateStorageHint(mPicturesRemaining); 633 } 634 635 if (!mHandler.hasMessages(RESTART_PREVIEW)) { 636 long now = System.currentTimeMillis(); 637 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 638 Log.v(TAG, "mJpegCallbackFinishTime = " 639 + mJpegCallbackFinishTime + "ms"); 640 mJpegPictureCallbackTime = 0; 641 } 642 } 643 } 644 645 private final class AutoFocusCallback 646 implements android.hardware.Camera.AutoFocusCallback { 647 public void onAutoFocus( 648 boolean focused, android.hardware.Camera camera) { 649 mFocusCallbackTime = System.currentTimeMillis(); 650 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 651 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 652 if (mFocusState == FOCUSING_SNAP_ON_FINISH) { 653 // Take the picture no matter focus succeeds or fails. No need 654 // to play the AF sound if we're about to play the shutter 655 // sound. 656 if (focused) { 657 mFocusState = FOCUS_SUCCESS; 658 } else { 659 mFocusState = FOCUS_FAIL; 660 } 661 mImageCapture.onSnap(); 662 } else if (mFocusState == FOCUSING) { 663 // User is half-pressing the focus key. Play the focus tone. 664 // Do not take the picture now. 665 ToneGenerator tg = mFocusToneGenerator; 666 if (tg != null) { 667 tg.startTone(ToneGenerator.TONE_PROP_BEEP2); 668 } 669 if (focused) { 670 mFocusState = FOCUS_SUCCESS; 671 } else { 672 mFocusState = FOCUS_FAIL; 673 } 674 } else if (mFocusState == FOCUS_NOT_STARTED) { 675 // User has released the focus key before focus completes. 676 // Do nothing. 677 } 678 updateFocusIndicator(); 679 } 680 } 681 682 private static final class ErrorCallback 683 implements android.hardware.Camera.ErrorCallback { 684 public void onError(int error, android.hardware.Camera camera) { 685 if (error == android.hardware.Camera.CAMERA_ERROR_SERVER_DIED) { 686 mMediaServerDied = true; 687 Log.v(TAG, "media server died"); 688 } 689 } 690 } 691 692 private final class ZoomListener 693 implements android.hardware.Camera.OnZoomChangeListener { 694 public void onZoomChange( 695 int value, boolean stopped, android.hardware.Camera camera) { 696 Log.v(TAG, "Zoom changed: value=" + value + ". stopped="+ stopped); 697 mZoomValue = value; 698 // Keep mParameters up to date. We do not getParameter again in 699 // takePicture. If we do not do this, wrong zoom value will be set. 700 mParameters.setZoom(value); 701 // We only care if the zoom is stopped. mZooming is set to true when 702 // we start smooth zoom. 703 if (stopped && mZoomState != ZOOM_STOPPED) { 704 if (value != mTargetZoomValue) { 705 mCameraDevice.startSmoothZoom(mTargetZoomValue); 706 mZoomState = ZOOM_START; 707 } else { 708 mZoomState = ZOOM_STOPPED; 709 } 710 } 711 } 712 } 713 714 private class ImageCapture { 715 716 private Uri mLastContentUri; 717 718 byte[] mCaptureOnlyData; 719 720 // Returns the rotation degree in the jpeg header. 721 private int storeImage(byte[] data, Location loc) { 722 try { 723 long dateTaken = System.currentTimeMillis(); 724 String title = createName(dateTaken); 725 String filename = title + ".jpg"; 726 int[] degree = new int[1]; 727 mLastContentUri = ImageManager.addImage( 728 mContentResolver, 729 title, 730 dateTaken, 731 loc, // location from gps/network 732 ImageManager.CAMERA_IMAGE_BUCKET_NAME, filename, 733 null, data, 734 degree); 735 return degree[0]; 736 } catch (Exception ex) { 737 Log.e(TAG, "Exception while compressing image.", ex); 738 return 0; 739 } 740 } 741 742 public void storeImage(final byte[] data, 743 android.hardware.Camera camera, Location loc) { 744 if (!mIsImageCaptureIntent) { 745 int degree = storeImage(data, loc); 746 sendBroadcast(new Intent( 747 "com.android.camera.NEW_PICTURE", mLastContentUri)); 748 setLastPictureThumb(data, degree, 749 mImageCapture.getLastCaptureUri()); 750 mThumbController.updateDisplayIfNeeded(); 751 } else { 752 mCaptureOnlyData = data; 753 showPostCaptureAlert(); 754 } 755 } 756 757 /** 758 * Initiate the capture of an image. 759 */ 760 public void initiate() { 761 if (mCameraDevice == null) { 762 return; 763 } 764 765 capture(); 766 } 767 768 public Uri getLastCaptureUri() { 769 return mLastContentUri; 770 } 771 772 public byte[] getLastCaptureData() { 773 return mCaptureOnlyData; 774 } 775 776 private void capture() { 777 mCaptureOnlyData = null; 778 779 // Set JPEG rotation to match the orientation of what users see. The 780 // rotation is relative to the orientation of the camera. The value 781 // from OrientationEventListener is relative to the natural 782 // orientation of the device. CameraInfo.mOrientation is the angle 783 // between camera orientation and natural device orientation. The 784 // sum of the two is the value for setRotation. 785 int rotation = 0; 786 if (mOrientation != OrientationEventListener.ORIENTATION_UNKNOWN) { 787 CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; 788 rotation = (mOrientation + info.orientation) % 360; 789 } 790 mParameters.setRotation(rotation); 791 792 // Clear previous GPS location from the parameters. 793 mParameters.removeGpsData(); 794 795 // We always encode GpsTimeStamp 796 mParameters.setGpsTimestamp(System.currentTimeMillis() / 1000); 797 798 // Set GPS location. 799 Location loc = mRecordLocation ? getCurrentLocation() : null; 800 if (loc != null) { 801 double lat = loc.getLatitude(); 802 double lon = loc.getLongitude(); 803 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 804 805 if (hasLatLon) { 806 mParameters.setGpsLatitude(lat); 807 mParameters.setGpsLongitude(lon); 808 mParameters.setGpsProcessingMethod(loc.getProvider().toUpperCase()); 809 if (loc.hasAltitude()) { 810 mParameters.setGpsAltitude(loc.getAltitude()); 811 } else { 812 // for NETWORK_PROVIDER location provider, we may have 813 // no altitude information, but the driver needs it, so 814 // we fake one. 815 mParameters.setGpsAltitude(0); 816 } 817 if (loc.getTime() != 0) { 818 // Location.getTime() is UTC in milliseconds. 819 // gps-timestamp is UTC in seconds. 820 long utcTimeSeconds = loc.getTime() / 1000; 821 mParameters.setGpsTimestamp(utcTimeSeconds); 822 } 823 } else { 824 loc = null; 825 } 826 } 827 828 mCameraDevice.setParameters(mParameters); 829 830 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 831 mPostViewPictureCallback, new JpegPictureCallback(loc)); 832 mPreviewing = false; 833 } 834 835 public void onSnap() { 836 // If we are already in the middle of taking a snapshot then ignore. 837 if (mPausing || mStatus == SNAPSHOT_IN_PROGRESS) { 838 return; 839 } 840 mCaptureStartTime = System.currentTimeMillis(); 841 mPostViewPictureCallbackTime = 0; 842 mHeadUpDisplay.setEnabled(false); 843 mStatus = SNAPSHOT_IN_PROGRESS; 844 845 mImageCapture.initiate(); 846 } 847 848 private void clearLastData() { 849 mCaptureOnlyData = null; 850 } 851 } 852 853 private boolean saveDataToFile(String filePath, byte[] data) { 854 FileOutputStream f = null; 855 try { 856 f = new FileOutputStream(filePath); 857 f.write(data); 858 } catch (IOException e) { 859 return false; 860 } finally { 861 MenuHelper.closeSilently(f); 862 } 863 return true; 864 } 865 866 private void setLastPictureThumb(byte[] data, int degree, Uri uri) { 867 BitmapFactory.Options options = new BitmapFactory.Options(); 868 options.inSampleSize = 16; 869 Bitmap lastPictureThumb = 870 BitmapFactory.decodeByteArray(data, 0, data.length, options); 871 lastPictureThumb = Util.rotate(lastPictureThumb, degree); 872 mThumbController.setData(uri, lastPictureThumb); 873 } 874 875 private String createName(long dateTaken) { 876 Date date = new Date(dateTaken); 877 SimpleDateFormat dateFormat = new SimpleDateFormat( 878 getString(R.string.image_file_name_format)); 879 880 return dateFormat.format(date); 881 } 882 883 @Override 884 public void onCreate(Bundle icicle) { 885 super.onCreate(icicle); 886 887 setContentView(R.layout.camera); 888 mSurfaceView = (SurfaceView) findViewById(R.id.camera_preview); 889 890 mPreferences = new ComboPreferences(this); 891 CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal()); 892 mCameraId = CameraSettings.readPreferredCameraId(mPreferences); 893 mPreferences.setLocalId(this, mCameraId); 894 CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); 895 896 mNumberOfCameras = CameraHolder.instance().getNumberOfCameras(); 897 898 // we need to reset exposure for the preview 899 resetExposureCompensation(); 900 /* 901 * To reduce startup time, we start the preview in another thread. 902 * We make sure the preview is started at the end of onCreate. 903 */ 904 Thread startPreviewThread = new Thread(new Runnable() { 905 public void run() { 906 try { 907 mStartPreviewFail = false; 908 startPreview(); 909 } catch (CameraHardwareException e) { 910 // In eng build, we throw the exception so that test tool 911 // can detect it and report it 912 if ("eng".equals(Build.TYPE)) { 913 throw new RuntimeException(e); 914 } 915 mStartPreviewFail = true; 916 } 917 } 918 }); 919 startPreviewThread.start(); 920 921 // don't set mSurfaceHolder here. We have it set ONLY within 922 // surfaceChanged / surfaceDestroyed, other parts of the code 923 // assume that when it is set, the surface is also set. 924 SurfaceHolder holder = mSurfaceView.getHolder(); 925 holder.addCallback(this); 926 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 927 928 mIsImageCaptureIntent = isImageCaptureIntent(); 929 if (mIsImageCaptureIntent) { 930 setupCaptureParams(); 931 } 932 933 LayoutInflater inflater = getLayoutInflater(); 934 935 ViewGroup rootView = (ViewGroup) findViewById(R.id.camera); 936 if (mIsImageCaptureIntent) { 937 View controlBar = inflater.inflate( 938 R.layout.attach_camera_control, rootView); 939 controlBar.findViewById(R.id.btn_cancel).setOnClickListener(this); 940 controlBar.findViewById(R.id.btn_retake).setOnClickListener(this); 941 controlBar.findViewById(R.id.btn_done).setOnClickListener(this); 942 } else { 943 inflater.inflate(R.layout.camera_control, rootView); 944 mSwitcher = ((Switcher) findViewById(R.id.camera_switch)); 945 mSwitcher.setOnSwitchListener(this); 946 mSwitcher.addTouchView(findViewById(R.id.camera_switch_set)); 947 } 948 949 // Make sure preview is started. 950 try { 951 startPreviewThread.join(); 952 if (mStartPreviewFail) { 953 showCameraErrorAndFinish(); 954 return; 955 } 956 } catch (InterruptedException ex) { 957 // ignore 958 } 959 } 960 961 private void changeHeadUpDisplayState() { 962 // If the camera resumes behind the lock screen, the orientation 963 // will be portrait. That causes OOM when we try to allocation GPU 964 // memory for the GLSurfaceView again when the orientation changes. So, 965 // we delayed initialization of HeadUpDisplay until the orientation 966 // becomes landscape. 967 Configuration config = getResources().getConfiguration(); 968 if (config.orientation == Configuration.ORIENTATION_LANDSCAPE 969 && !mPausing && mFirstTimeInitialized) { 970 if (mGLRootView == null) attachHeadUpDisplay(); 971 } else if (mGLRootView != null) { 972 detachHeadUpDisplay(); 973 } 974 } 975 976 private void overrideHudSettings(final String flashMode, 977 final String whiteBalance, final String focusMode) { 978 mHeadUpDisplay.overrideSettings( 979 CameraSettings.KEY_FLASH_MODE, flashMode, 980 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 981 CameraSettings.KEY_FOCUS_MODE, focusMode); 982 } 983 984 private void updateSceneModeInHud() { 985 // If scene mode is set, we cannot set flash mode, white balance, and 986 // focus mode, instead, we read it from driver 987 if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 988 overrideHudSettings(mParameters.getFlashMode(), 989 mParameters.getWhiteBalance(), mParameters.getFocusMode()); 990 } else { 991 overrideHudSettings(null, null, null); 992 } 993 } 994 995 private void initializeHeadUpDisplay() { 996 CameraSettings settings = new CameraSettings(this, mInitialParams, 997 CameraHolder.instance().getCameraInfo()); 998 mHeadUpDisplay.initialize(this, 999 settings.getPreferenceGroup(R.xml.camera_preferences), 1000 getZoomRatios(), mOrientationCompensation); 1001 if (mParameters.isZoomSupported()) { 1002 mHeadUpDisplay.setZoomListener(new ZoomControllerListener() { 1003 public void onZoomChanged( 1004 int index, float ratio, boolean isMoving) { 1005 onZoomValueChanged(index); 1006 } 1007 }); 1008 } else { 1009 mHeadUpDisplay.setZoomListener(null); 1010 } 1011 updateSceneModeInHud(); 1012 } 1013 1014 private void attachHeadUpDisplay() { 1015 mHeadUpDisplay.setOrientation(mOrientationCompensation); 1016 if (mParameters.isZoomSupported()) { 1017 mHeadUpDisplay.setZoomIndex(mZoomValue); 1018 } 1019 FrameLayout frame = (FrameLayout) findViewById(R.id.frame); 1020 mGLRootView = new GLRootView(this); 1021 mGLRootView.setContentPane(mHeadUpDisplay); 1022 frame.addView(mGLRootView); 1023 } 1024 1025 private void detachHeadUpDisplay() { 1026 mHeadUpDisplay.setGpsHasSignal(false); 1027 mHeadUpDisplay.collapse(); 1028 ((ViewGroup) mGLRootView.getParent()).removeView(mGLRootView); 1029 mGLRootView = null; 1030 } 1031 1032 public static int roundOrientation(int orientation) { 1033 return ((orientation + 45) / 90 * 90) % 360; 1034 } 1035 1036 private class MyOrientationEventListener 1037 extends OrientationEventListener { 1038 public MyOrientationEventListener(Context context) { 1039 super(context); 1040 } 1041 1042 @Override 1043 public void onOrientationChanged(int orientation) { 1044 // We keep the last known orientation. So if the user first orient 1045 // the camera then point the camera to floor or sky, we still have 1046 // the correct orientation. 1047 if (orientation == ORIENTATION_UNKNOWN) return; 1048 orientation = roundOrientation(orientation); 1049 if (orientation != mOrientation) { 1050 mOrientation = orientation; 1051 mOrientationCompensation = orientation 1052 + Util.getDisplayRotation(Camera.this); 1053 1054 if (!mIsImageCaptureIntent) { 1055 setOrientationIndicator(mOrientationCompensation); 1056 } 1057 mHeadUpDisplay.setOrientation(mOrientationCompensation); 1058 } 1059 } 1060 } 1061 1062 private void setOrientationIndicator(int degree) { 1063 ((RotateImageView) findViewById( 1064 R.id.review_thumbnail)).setDegree(degree); 1065 ((RotateImageView) findViewById( 1066 R.id.camera_switch_icon)).setDegree(degree); 1067 ((RotateImageView) findViewById( 1068 R.id.video_switch_icon)).setDegree(degree); 1069 } 1070 1071 @Override 1072 public void onStart() { 1073 super.onStart(); 1074 if (!mIsImageCaptureIntent) { 1075 mSwitcher.setSwitch(SWITCH_CAMERA); 1076 } 1077 } 1078 1079 @Override 1080 public void onStop() { 1081 super.onStop(); 1082 if (mMediaProviderClient != null) { 1083 mMediaProviderClient.release(); 1084 mMediaProviderClient = null; 1085 } 1086 } 1087 1088 private void checkStorage() { 1089 calculatePicturesRemaining(); 1090 updateStorageHint(mPicturesRemaining); 1091 } 1092 1093 public void onClick(View v) { 1094 switch (v.getId()) { 1095 case R.id.btn_retake: 1096 hidePostCaptureAlert(); 1097 restartPreview(); 1098 break; 1099 case R.id.review_thumbnail: 1100 if (isCameraIdle()) { 1101 viewLastImage(); 1102 } 1103 break; 1104 case R.id.btn_done: 1105 doAttach(); 1106 break; 1107 case R.id.btn_cancel: 1108 doCancel(); 1109 } 1110 } 1111 1112 private Bitmap createCaptureBitmap(byte[] data) { 1113 // This is really stupid...we just want to read the orientation in 1114 // the jpeg header. 1115 String filepath = ImageManager.getTempJpegPath(); 1116 int degree = 0; 1117 if (saveDataToFile(filepath, data)) { 1118 degree = ImageManager.getExifOrientation(filepath); 1119 new File(filepath).delete(); 1120 } 1121 1122 // Limit to 50k pixels so we can return it in the intent. 1123 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1124 bitmap = Util.rotate(bitmap, degree); 1125 return bitmap; 1126 } 1127 1128 private void doAttach() { 1129 if (mPausing) { 1130 return; 1131 } 1132 1133 byte[] data = mImageCapture.getLastCaptureData(); 1134 1135 if (mCropValue == null) { 1136 // First handle the no crop case -- just return the value. If the 1137 // caller specifies a "save uri" then write the data to it's 1138 // stream. Otherwise, pass back a scaled down version of the bitmap 1139 // directly in the extras. 1140 if (mSaveUri != null) { 1141 OutputStream outputStream = null; 1142 try { 1143 outputStream = mContentResolver.openOutputStream(mSaveUri); 1144 outputStream.write(data); 1145 outputStream.close(); 1146 1147 setResult(RESULT_OK); 1148 finish(); 1149 } catch (IOException ex) { 1150 // ignore exception 1151 } finally { 1152 Util.closeSilently(outputStream); 1153 } 1154 } else { 1155 Bitmap bitmap = createCaptureBitmap(data); 1156 setResult(RESULT_OK, 1157 new Intent("inline-data").putExtra("data", bitmap)); 1158 finish(); 1159 } 1160 } else { 1161 // Save the image to a temp file and invoke the cropper 1162 Uri tempUri = null; 1163 FileOutputStream tempStream = null; 1164 try { 1165 File path = getFileStreamPath(sTempCropFilename); 1166 path.delete(); 1167 tempStream = openFileOutput(sTempCropFilename, 0); 1168 tempStream.write(data); 1169 tempStream.close(); 1170 tempUri = Uri.fromFile(path); 1171 } catch (FileNotFoundException ex) { 1172 setResult(Activity.RESULT_CANCELED); 1173 finish(); 1174 return; 1175 } catch (IOException ex) { 1176 setResult(Activity.RESULT_CANCELED); 1177 finish(); 1178 return; 1179 } finally { 1180 Util.closeSilently(tempStream); 1181 } 1182 1183 Bundle newExtras = new Bundle(); 1184 if (mCropValue.equals("circle")) { 1185 newExtras.putString("circleCrop", "true"); 1186 } 1187 if (mSaveUri != null) { 1188 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1189 } else { 1190 newExtras.putBoolean("return-data", true); 1191 } 1192 1193 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1194 1195 cropIntent.setData(tempUri); 1196 cropIntent.putExtras(newExtras); 1197 1198 startActivityForResult(cropIntent, CROP_MSG); 1199 } 1200 } 1201 1202 private void doCancel() { 1203 setResult(RESULT_CANCELED, new Intent()); 1204 finish(); 1205 } 1206 1207 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1208 if (mPausing) { 1209 return; 1210 } 1211 switch (button.getId()) { 1212 case R.id.shutter_button: 1213 doFocus(pressed); 1214 break; 1215 } 1216 } 1217 1218 public void onShutterButtonClick(ShutterButton button) { 1219 if (mPausing) { 1220 return; 1221 } 1222 switch (button.getId()) { 1223 case R.id.shutter_button: 1224 doSnap(); 1225 break; 1226 } 1227 } 1228 1229 private OnScreenHint mStorageHint; 1230 1231 private void updateStorageHint(int remaining) { 1232 String noStorageText = null; 1233 1234 if (remaining == MenuHelper.NO_STORAGE_ERROR) { 1235 String state = Environment.getExternalStorageState(); 1236 if (state == Environment.MEDIA_CHECKING) { 1237 noStorageText = getString(R.string.preparing_sd); 1238 } else { 1239 noStorageText = getString(R.string.no_storage); 1240 } 1241 } else if (remaining == MenuHelper.CANNOT_STAT_ERROR) { 1242 noStorageText = getString(R.string.access_sd_fail); 1243 } else if (remaining < 1) { 1244 noStorageText = getString(R.string.not_enough_space); 1245 } 1246 1247 if (noStorageText != null) { 1248 if (mStorageHint == null) { 1249 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1250 } else { 1251 mStorageHint.setText(noStorageText); 1252 } 1253 mStorageHint.show(); 1254 } else if (mStorageHint != null) { 1255 mStorageHint.cancel(); 1256 mStorageHint = null; 1257 } 1258 } 1259 1260 private void installIntentFilter() { 1261 // install an intent filter to receive SD card related events. 1262 IntentFilter intentFilter = 1263 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1264 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1265 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1266 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1267 intentFilter.addDataScheme("file"); 1268 registerReceiver(mReceiver, intentFilter); 1269 mDidRegister = true; 1270 } 1271 1272 private void initializeFocusTone() { 1273 // Initialize focus tone generator. 1274 try { 1275 mFocusToneGenerator = new ToneGenerator( 1276 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1277 } catch (Throwable ex) { 1278 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1279 mFocusToneGenerator = null; 1280 } 1281 } 1282 1283 private void initializeScreenBrightness() { 1284 Window win = getWindow(); 1285 // Overright the brightness settings if it is automatic 1286 int mode = Settings.System.getInt( 1287 getContentResolver(), 1288 Settings.System.SCREEN_BRIGHTNESS_MODE, 1289 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); 1290 if (mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC) { 1291 WindowManager.LayoutParams winParams = win.getAttributes(); 1292 winParams.screenBrightness = DEFAULT_CAMERA_BRIGHTNESS; 1293 win.setAttributes(winParams); 1294 } 1295 } 1296 1297 @Override 1298 protected void onResume() { 1299 super.onResume(); 1300 1301 mPausing = false; 1302 mJpegPictureCallbackTime = 0; 1303 mZoomValue = 0; 1304 mImageCapture = new ImageCapture(); 1305 1306 // Start the preview if it is not started. 1307 if (!mPreviewing && !mStartPreviewFail) { 1308 resetExposureCompensation(); 1309 if (!restartPreview()) return; 1310 } 1311 1312 if (mSurfaceHolder != null) { 1313 // If first time initialization is not finished, put it in the 1314 // message queue. 1315 if (!mFirstTimeInitialized) { 1316 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1317 } else { 1318 initializeSecondTime(); 1319 } 1320 } 1321 keepScreenOnAwhile(); 1322 } 1323 1324 @Override 1325 public void onConfigurationChanged(Configuration config) { 1326 super.onConfigurationChanged(config); 1327 changeHeadUpDisplayState(); 1328 } 1329 1330 private static ImageManager.DataLocation dataLocation() { 1331 return ImageManager.DataLocation.EXTERNAL; 1332 } 1333 1334 @Override 1335 protected void onPause() { 1336 mPausing = true; 1337 stopPreview(); 1338 // Close the camera now because other activities may need to use it. 1339 closeCamera(); 1340 resetScreenOn(); 1341 changeHeadUpDisplayState(); 1342 1343 if (mFirstTimeInitialized) { 1344 mOrientationListener.disable(); 1345 if (!mIsImageCaptureIntent) { 1346 mThumbController.storeData( 1347 ImageManager.getLastImageThumbPath()); 1348 } 1349 hidePostCaptureAlert(); 1350 } 1351 1352 if (mDidRegister) { 1353 unregisterReceiver(mReceiver); 1354 mDidRegister = false; 1355 } 1356 stopReceivingLocationUpdates(); 1357 1358 if (mFocusToneGenerator != null) { 1359 mFocusToneGenerator.release(); 1360 mFocusToneGenerator = null; 1361 } 1362 1363 if (mStorageHint != null) { 1364 mStorageHint.cancel(); 1365 mStorageHint = null; 1366 } 1367 1368 // If we are in an image capture intent and has taken 1369 // a picture, we just clear it in onPause. 1370 mImageCapture.clearLastData(); 1371 mImageCapture = null; 1372 1373 // Remove the messages in the event queue. 1374 mHandler.removeMessages(RESTART_PREVIEW); 1375 mHandler.removeMessages(FIRST_TIME_INIT); 1376 1377 super.onPause(); 1378 } 1379 1380 @Override 1381 protected void onActivityResult( 1382 int requestCode, int resultCode, Intent data) { 1383 switch (requestCode) { 1384 case CROP_MSG: { 1385 Intent intent = new Intent(); 1386 if (data != null) { 1387 Bundle extras = data.getExtras(); 1388 if (extras != null) { 1389 intent.putExtras(extras); 1390 } 1391 } 1392 setResult(resultCode, intent); 1393 finish(); 1394 1395 File path = getFileStreamPath(sTempCropFilename); 1396 path.delete(); 1397 1398 break; 1399 } 1400 } 1401 } 1402 1403 private boolean canTakePicture() { 1404 return isCameraIdle() && mPreviewing && (mPicturesRemaining > 0); 1405 } 1406 1407 private void autoFocus() { 1408 // Initiate autofocus only when preview is started and snapshot is not 1409 // in progress. 1410 if (canTakePicture()) { 1411 mHeadUpDisplay.setEnabled(false); 1412 Log.v(TAG, "Start autofocus."); 1413 mFocusStartTime = System.currentTimeMillis(); 1414 mFocusState = FOCUSING; 1415 updateFocusIndicator(); 1416 mCameraDevice.autoFocus(mAutoFocusCallback); 1417 } 1418 } 1419 1420 private void cancelAutoFocus() { 1421 // User releases half-pressed focus key. 1422 if (mStatus != SNAPSHOT_IN_PROGRESS && (mFocusState == FOCUSING 1423 || mFocusState == FOCUS_SUCCESS || mFocusState == FOCUS_FAIL)) { 1424 Log.v(TAG, "Cancel autofocus."); 1425 mHeadUpDisplay.setEnabled(true); 1426 mCameraDevice.cancelAutoFocus(); 1427 } 1428 if (mFocusState != FOCUSING_SNAP_ON_FINISH) { 1429 clearFocusState(); 1430 } 1431 } 1432 1433 private void clearFocusState() { 1434 mFocusState = FOCUS_NOT_STARTED; 1435 updateFocusIndicator(); 1436 } 1437 1438 private void updateFocusIndicator() { 1439 if (mFocusRectangle == null) return; 1440 1441 if (mFocusState == FOCUSING || mFocusState == FOCUSING_SNAP_ON_FINISH) { 1442 mFocusRectangle.showStart(); 1443 } else if (mFocusState == FOCUS_SUCCESS) { 1444 mFocusRectangle.showSuccess(); 1445 } else if (mFocusState == FOCUS_FAIL) { 1446 mFocusRectangle.showFail(); 1447 } else { 1448 mFocusRectangle.clear(); 1449 } 1450 } 1451 1452 @Override 1453 public void onBackPressed() { 1454 if (!isCameraIdle()) { 1455 // ignore backs while we're taking a picture 1456 return; 1457 } else if (mHeadUpDisplay == null || !mHeadUpDisplay.collapse()) { 1458 super.onBackPressed(); 1459 } 1460 } 1461 1462 @Override 1463 public boolean onKeyDown(int keyCode, KeyEvent event) { 1464 switch (keyCode) { 1465 case KeyEvent.KEYCODE_FOCUS: 1466 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1467 doFocus(true); 1468 } 1469 return true; 1470 case KeyEvent.KEYCODE_CAMERA: 1471 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1472 doSnap(); 1473 } 1474 return true; 1475 case KeyEvent.KEYCODE_DPAD_CENTER: 1476 // If we get a dpad center event without any focused view, move 1477 // the focus to the shutter button and press it. 1478 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1479 // Start auto-focus immediately to reduce shutter lag. After 1480 // the shutter button gets the focus, doFocus() will be 1481 // called again but it is fine. 1482 if (mHeadUpDisplay.collapse()) return true; 1483 doFocus(true); 1484 if (mShutterButton.isInTouchMode()) { 1485 mShutterButton.requestFocusFromTouch(); 1486 } else { 1487 mShutterButton.requestFocus(); 1488 } 1489 mShutterButton.setPressed(true); 1490 } 1491 return true; 1492 } 1493 1494 return super.onKeyDown(keyCode, event); 1495 } 1496 1497 @Override 1498 public boolean onKeyUp(int keyCode, KeyEvent event) { 1499 switch (keyCode) { 1500 case KeyEvent.KEYCODE_FOCUS: 1501 if (mFirstTimeInitialized) { 1502 doFocus(false); 1503 } 1504 return true; 1505 } 1506 return super.onKeyUp(keyCode, event); 1507 } 1508 1509 private void doSnap() { 1510 if (mHeadUpDisplay.collapse()) return; 1511 1512 Log.v(TAG, "doSnap: mFocusState=" + mFocusState); 1513 // If the user has half-pressed the shutter and focus is completed, we 1514 // can take the photo right away. If the focus mode is infinity, we can 1515 // also take the photo. 1516 if (mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1517 || (mFocusState == FOCUS_SUCCESS 1518 || mFocusState == FOCUS_FAIL)) { 1519 mImageCapture.onSnap(); 1520 } else if (mFocusState == FOCUSING) { 1521 // Half pressing the shutter (i.e. the focus button event) will 1522 // already have requested AF for us, so just request capture on 1523 // focus here. 1524 mFocusState = FOCUSING_SNAP_ON_FINISH; 1525 } else if (mFocusState == FOCUS_NOT_STARTED) { 1526 // Focus key down event is dropped for some reasons. Just ignore. 1527 } 1528 } 1529 1530 private void doFocus(boolean pressed) { 1531 // Do the focus if the mode is not infinity. 1532 if (mHeadUpDisplay.collapse()) return; 1533 if (!mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY)) { 1534 if (pressed) { // Focus key down. 1535 autoFocus(); 1536 } else { // Focus key up. 1537 cancelAutoFocus(); 1538 } 1539 } 1540 } 1541 1542 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1543 // Make sure we have a surface in the holder before proceeding. 1544 if (holder.getSurface() == null) { 1545 Log.d(TAG, "holder.getSurface() == null"); 1546 return; 1547 } 1548 1549 // We need to save the holder for later use, even when the mCameraDevice 1550 // is null. This could happen if onResume() is invoked after this 1551 // function. 1552 mSurfaceHolder = holder; 1553 1554 // The mCameraDevice will be null if it fails to connect to the camera 1555 // hardware. In this case we will show a dialog and then finish the 1556 // activity, so it's OK to ignore it. 1557 if (mCameraDevice == null) return; 1558 1559 // Sometimes surfaceChanged is called after onPause or before onResume. 1560 // Ignore it. 1561 if (mPausing || isFinishing()) return; 1562 1563 if (mPreviewing && holder.isCreating()) { 1564 // Set preview display if the surface is being created and preview 1565 // was already started. That means preview display was set to null 1566 // and we need to set it now. 1567 setPreviewDisplay(holder); 1568 } else { 1569 // 1. Restart the preview if the size of surface was changed. The 1570 // framework may not support changing preview display on the fly. 1571 // 2. Start the preview now if surface was destroyed and preview 1572 // stopped. 1573 restartPreview(); 1574 } 1575 1576 // If first time initialization is not finished, send a message to do 1577 // it later. We want to finish surfaceChanged as soon as possible to let 1578 // user see preview first. 1579 if (!mFirstTimeInitialized) { 1580 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1581 } else { 1582 initializeSecondTime(); 1583 } 1584 } 1585 1586 public void surfaceCreated(SurfaceHolder holder) { 1587 } 1588 1589 public void surfaceDestroyed(SurfaceHolder holder) { 1590 stopPreview(); 1591 mSurfaceHolder = null; 1592 } 1593 1594 private void closeCamera() { 1595 if (mCameraDevice != null) { 1596 CameraHolder.instance().release(); 1597 mCameraDevice.setZoomChangeListener(null); 1598 mCameraDevice = null; 1599 mPreviewing = false; 1600 } 1601 } 1602 1603 private void ensureCameraDevice() throws CameraHardwareException { 1604 if (mCameraDevice == null) { 1605 mCameraDevice = CameraHolder.instance().open(mCameraId); 1606 mInitialParams = mCameraDevice.getParameters(); 1607 } 1608 } 1609 1610 private void updateLastImage() { 1611 IImageList list = ImageManager.makeImageList( 1612 mContentResolver, 1613 dataLocation(), 1614 ImageManager.INCLUDE_IMAGES, 1615 ImageManager.SORT_ASCENDING, 1616 ImageManager.CAMERA_IMAGE_BUCKET_ID); 1617 int count = list.getCount(); 1618 if (count > 0) { 1619 IImage image = list.getImageAt(count - 1); 1620 Uri uri = image.fullSizeImageUri(); 1621 mThumbController.setData(uri, image.miniThumbBitmap()); 1622 } else { 1623 mThumbController.setData(null, null); 1624 } 1625 list.close(); 1626 } 1627 1628 private void showCameraErrorAndFinish() { 1629 Resources ress = getResources(); 1630 Util.showFatalErrorAndFinish(Camera.this, 1631 ress.getString(R.string.camera_error_title), 1632 ress.getString(R.string.cannot_connect_camera)); 1633 } 1634 1635 private boolean restartPreview() { 1636 try { 1637 startPreview(); 1638 } catch (CameraHardwareException e) { 1639 showCameraErrorAndFinish(); 1640 return false; 1641 } 1642 return true; 1643 } 1644 1645 private void setPreviewDisplay(SurfaceHolder holder) { 1646 try { 1647 mCameraDevice.setPreviewDisplay(holder); 1648 } catch (Throwable ex) { 1649 closeCamera(); 1650 throw new RuntimeException("setPreviewDisplay failed", ex); 1651 } 1652 } 1653 1654 private void startPreview() throws CameraHardwareException { 1655 if (mPausing || isFinishing()) return; 1656 1657 ensureCameraDevice(); 1658 1659 // If we're previewing already, stop the preview first (this will blank 1660 // the screen). 1661 if (mPreviewing) stopPreview(); 1662 1663 setPreviewDisplay(mSurfaceHolder); 1664 Util.setCameraDisplayOrientation(this, mCameraId, mCameraDevice); 1665 setCameraParameters(UPDATE_PARAM_ALL); 1666 1667 mCameraDevice.setErrorCallback(mErrorCallback); 1668 1669 try { 1670 Log.v(TAG, "startPreview"); 1671 mCameraDevice.startPreview(); 1672 } catch (Throwable ex) { 1673 closeCamera(); 1674 throw new RuntimeException("startPreview failed", ex); 1675 } 1676 mPreviewing = true; 1677 mZoomState = ZOOM_STOPPED; 1678 mStatus = IDLE; 1679 } 1680 1681 private void stopPreview() { 1682 if (mCameraDevice != null && mPreviewing) { 1683 Log.v(TAG, "stopPreview"); 1684 mCameraDevice.stopPreview(); 1685 } 1686 mPreviewing = false; 1687 // If auto focus was in progress, it would have been canceled. 1688 clearFocusState(); 1689 } 1690 1691 private Size getOptimalPreviewSize(List<Size> sizes, double targetRatio) { 1692 final double ASPECT_TOLERANCE = 0.05; 1693 if (sizes == null) return null; 1694 1695 Size optimalSize = null; 1696 double minDiff = Double.MAX_VALUE; 1697 1698 // Because of bugs of overlay and layout, we sometimes will try to 1699 // layout the viewfinder in the portrait orientation and thus get the 1700 // wrong size of mSurfaceView. When we change the preview size, the 1701 // new overlay will be created before the old one closed, which causes 1702 // an exception. For now, just get the screen size 1703 1704 Display display = getWindowManager().getDefaultDisplay(); 1705 int targetHeight = Math.min(display.getHeight(), display.getWidth()); 1706 1707 if (targetHeight <= 0) { 1708 // We don't know the size of SurefaceView, use screen height 1709 WindowManager windowManager = (WindowManager) 1710 getSystemService(Context.WINDOW_SERVICE); 1711 targetHeight = windowManager.getDefaultDisplay().getHeight(); 1712 } 1713 1714 // Try to find an size match aspect ratio and size 1715 for (Size size : sizes) { 1716 double ratio = (double) size.width / size.height; 1717 if (Math.abs(ratio - targetRatio) > ASPECT_TOLERANCE) continue; 1718 if (Math.abs(size.height - targetHeight) < minDiff) { 1719 optimalSize = size; 1720 minDiff = Math.abs(size.height - targetHeight); 1721 } 1722 } 1723 1724 // Cannot find the one match the aspect ratio, ignore the requirement 1725 if (optimalSize == null) { 1726 Log.v(TAG, "No preview size match the aspect ratio"); 1727 minDiff = Double.MAX_VALUE; 1728 for (Size size : sizes) { 1729 if (Math.abs(size.height - targetHeight) < minDiff) { 1730 optimalSize = size; 1731 minDiff = Math.abs(size.height - targetHeight); 1732 } 1733 } 1734 } 1735 return optimalSize; 1736 } 1737 1738 private static boolean isSupported(String value, List<String> supported) { 1739 return supported == null ? false : supported.indexOf(value) >= 0; 1740 } 1741 1742 private void updateCameraParametersInitialize() { 1743 // Reset preview frame rate to the maximum because it may be lowered by 1744 // video camera application. 1745 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1746 if (frameRates != null) { 1747 Integer max = Collections.max(frameRates); 1748 mParameters.setPreviewFrameRate(max); 1749 } 1750 1751 } 1752 1753 private void updateCameraParametersZoom() { 1754 // Set zoom. 1755 if (mParameters.isZoomSupported()) { 1756 mParameters.setZoom(mZoomValue); 1757 } 1758 } 1759 1760 private void updateCameraParametersPreference() { 1761 // Set picture size. 1762 String pictureSize = mPreferences.getString( 1763 CameraSettings.KEY_PICTURE_SIZE, null); 1764 if (pictureSize == null) { 1765 CameraSettings.initialCameraPictureSize(this, mParameters); 1766 } else { 1767 List<Size> supported = mParameters.getSupportedPictureSizes(); 1768 CameraSettings.setCameraPictureSize( 1769 pictureSize, supported, mParameters); 1770 } 1771 1772 // Set the preview frame aspect ratio according to the picture size. 1773 Size size = mParameters.getPictureSize(); 1774 PreviewFrameLayout frameLayout = 1775 (PreviewFrameLayout) findViewById(R.id.frame_layout); 1776 frameLayout.setAspectRatio((double) size.width / size.height); 1777 1778 // Set a preview size that is closest to the viewfinder height and has 1779 // the right aspect ratio. 1780 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1781 Size optimalSize = getOptimalPreviewSize( 1782 sizes, (double) size.width / size.height); 1783 if (optimalSize != null) { 1784 Size original = mParameters.getPreviewSize(); 1785 if (!original.equals(optimalSize)) { 1786 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1787 1788 // Zoom related settings will be changed for different preview 1789 // sizes, so set and read the parameters to get lastest values 1790 mCameraDevice.setParameters(mParameters); 1791 mParameters = mCameraDevice.getParameters(); 1792 } 1793 } 1794 1795 // Since change scene mode may change supported values, 1796 // Set scene mode first, 1797 mSceneMode = mPreferences.getString( 1798 CameraSettings.KEY_SCENE_MODE, 1799 getString(R.string.pref_camera_scenemode_default)); 1800 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 1801 if (!mParameters.getSceneMode().equals(mSceneMode)) { 1802 mParameters.setSceneMode(mSceneMode); 1803 mCameraDevice.setParameters(mParameters); 1804 1805 // Setting scene mode will change the settings of flash mode, 1806 // white balance, and focus mode. Here we read back the 1807 // parameters, so we can know those settings. 1808 mParameters = mCameraDevice.getParameters(); 1809 } 1810 } else { 1811 mSceneMode = mParameters.getSceneMode(); 1812 if (mSceneMode == null) { 1813 mSceneMode = Parameters.SCENE_MODE_AUTO; 1814 } 1815 } 1816 1817 // Set JPEG quality. 1818 String jpegQuality = mPreferences.getString( 1819 CameraSettings.KEY_JPEG_QUALITY, 1820 getString(R.string.pref_camera_jpegquality_default)); 1821 mParameters.setJpegQuality(JpegEncodingQualityMappings.getQualityNumber(jpegQuality)); 1822 1823 // For the following settings, we need to check if the settings are 1824 // still supported by latest driver, if not, ignore the settings. 1825 1826 // Set color effect parameter. 1827 String colorEffect = mPreferences.getString( 1828 CameraSettings.KEY_COLOR_EFFECT, 1829 getString(R.string.pref_camera_coloreffect_default)); 1830 if (isSupported(colorEffect, mParameters.getSupportedColorEffects())) { 1831 mParameters.setColorEffect(colorEffect); 1832 } 1833 1834 // Set exposure compensation 1835 String exposure = mPreferences.getString( 1836 CameraSettings.KEY_EXPOSURE, 1837 getString(R.string.pref_exposure_default)); 1838 try { 1839 int value = Integer.parseInt(exposure); 1840 int max = mParameters.getMaxExposureCompensation(); 1841 int min = mParameters.getMinExposureCompensation(); 1842 if (value >= min && value <= max) { 1843 mParameters.setExposureCompensation(value); 1844 } else { 1845 Log.w(TAG, "invalid exposure range: " + exposure); 1846 } 1847 } catch (NumberFormatException e) { 1848 Log.w(TAG, "invalid exposure: " + exposure); 1849 } 1850 1851 if (mHeadUpDisplay != null) updateSceneModeInHud(); 1852 1853 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1854 // Set flash mode. 1855 String flashMode = mPreferences.getString( 1856 CameraSettings.KEY_FLASH_MODE, 1857 getString(R.string.pref_camera_flashmode_default)); 1858 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 1859 if (isSupported(flashMode, supportedFlash)) { 1860 mParameters.setFlashMode(flashMode); 1861 } else { 1862 flashMode = mParameters.getFlashMode(); 1863 if (flashMode == null) { 1864 flashMode = getString( 1865 R.string.pref_camera_flashmode_no_flash); 1866 } 1867 } 1868 1869 // Set white balance parameter. 1870 String whiteBalance = mPreferences.getString( 1871 CameraSettings.KEY_WHITE_BALANCE, 1872 getString(R.string.pref_camera_whitebalance_default)); 1873 if (isSupported(whiteBalance, 1874 mParameters.getSupportedWhiteBalance())) { 1875 mParameters.setWhiteBalance(whiteBalance); 1876 } else { 1877 whiteBalance = mParameters.getWhiteBalance(); 1878 if (whiteBalance == null) { 1879 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 1880 } 1881 } 1882 1883 // Set focus mode. 1884 mFocusMode = mPreferences.getString( 1885 CameraSettings.KEY_FOCUS_MODE, 1886 getString(R.string.pref_camera_focusmode_default)); 1887 if (isSupported(mFocusMode, mParameters.getSupportedFocusModes())) { 1888 mParameters.setFocusMode(mFocusMode); 1889 } else { 1890 mFocusMode = mParameters.getFocusMode(); 1891 if (mFocusMode == null) { 1892 mFocusMode = Parameters.FOCUS_MODE_AUTO; 1893 } 1894 } 1895 } else { 1896 mFocusMode = mParameters.getFocusMode(); 1897 } 1898 } 1899 1900 // We separate the parameters into several subsets, so we can update only 1901 // the subsets actually need updating. The PREFERENCE set needs extra 1902 // locking because the preference can be changed from GLThread as well. 1903 private void setCameraParameters(int updateSet) { 1904 mParameters = mCameraDevice.getParameters(); 1905 1906 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 1907 updateCameraParametersInitialize(); 1908 } 1909 1910 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 1911 updateCameraParametersZoom(); 1912 } 1913 1914 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 1915 updateCameraParametersPreference(); 1916 } 1917 1918 mCameraDevice.setParameters(mParameters); 1919 } 1920 1921 // If the Camera is idle, update the parameters immediately, otherwise 1922 // accumulate them in mUpdateSet and update later. 1923 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 1924 mUpdateSet |= additionalUpdateSet; 1925 if (mCameraDevice == null) { 1926 // We will update all the parameters when we open the device, so 1927 // we don't need to do anything now. 1928 mUpdateSet = 0; 1929 return; 1930 } else if (isCameraIdle()) { 1931 setCameraParameters(mUpdateSet); 1932 mUpdateSet = 0; 1933 } else { 1934 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 1935 mHandler.sendEmptyMessageDelayed( 1936 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 1937 } 1938 } 1939 } 1940 1941 private void gotoGallery() { 1942 MenuHelper.gotoCameraImageGallery(this); 1943 } 1944 1945 private void viewLastImage() { 1946 if (mThumbController.isUriValid()) { 1947 Intent intent = new Intent(Util.REVIEW_ACTION, mThumbController.getUri()); 1948 try { 1949 startActivity(intent); 1950 } catch (ActivityNotFoundException ex) { 1951 try { 1952 intent = new Intent(Intent.ACTION_VIEW, mThumbController.getUri()); 1953 startActivity(intent); 1954 } catch (ActivityNotFoundException e) { 1955 Log.e(TAG, "review image fail", e); 1956 } 1957 } 1958 } else { 1959 Log.e(TAG, "Can't view last image."); 1960 } 1961 } 1962 1963 private void startReceivingLocationUpdates() { 1964 if (mLocationManager != null) { 1965 try { 1966 mLocationManager.requestLocationUpdates( 1967 LocationManager.NETWORK_PROVIDER, 1968 1000, 1969 0F, 1970 mLocationListeners[1]); 1971 } catch (java.lang.SecurityException ex) { 1972 Log.i(TAG, "fail to request location update, ignore", ex); 1973 } catch (IllegalArgumentException ex) { 1974 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1975 } 1976 try { 1977 mLocationManager.requestLocationUpdates( 1978 LocationManager.GPS_PROVIDER, 1979 1000, 1980 0F, 1981 mLocationListeners[0]); 1982 } catch (java.lang.SecurityException ex) { 1983 Log.i(TAG, "fail to request location update, ignore", ex); 1984 } catch (IllegalArgumentException ex) { 1985 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1986 } 1987 } 1988 } 1989 1990 private void stopReceivingLocationUpdates() { 1991 if (mLocationManager != null) { 1992 for (int i = 0; i < mLocationListeners.length; i++) { 1993 try { 1994 mLocationManager.removeUpdates(mLocationListeners[i]); 1995 } catch (Exception ex) { 1996 Log.i(TAG, "fail to remove location listners, ignore", ex); 1997 } 1998 } 1999 } 2000 } 2001 2002 private Location getCurrentLocation() { 2003 // go in best to worst order 2004 for (int i = 0; i < mLocationListeners.length; i++) { 2005 Location l = mLocationListeners[i].current(); 2006 if (l != null) return l; 2007 } 2008 return null; 2009 } 2010 2011 private boolean isCameraIdle() { 2012 return mStatus == IDLE && mFocusState == FOCUS_NOT_STARTED; 2013 } 2014 2015 private boolean isImageCaptureIntent() { 2016 String action = getIntent().getAction(); 2017 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 2018 } 2019 2020 private void setupCaptureParams() { 2021 Bundle myExtras = getIntent().getExtras(); 2022 if (myExtras != null) { 2023 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 2024 mCropValue = myExtras.getString("crop"); 2025 } 2026 } 2027 2028 private void showPostCaptureAlert() { 2029 if (mIsImageCaptureIntent) { 2030 findViewById(R.id.shutter_button).setVisibility(View.INVISIBLE); 2031 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2032 for (int id : pickIds) { 2033 View button = findViewById(id); 2034 ((View) button.getParent()).setVisibility(View.VISIBLE); 2035 } 2036 } 2037 } 2038 2039 private void hidePostCaptureAlert() { 2040 if (mIsImageCaptureIntent) { 2041 findViewById(R.id.shutter_button).setVisibility(View.VISIBLE); 2042 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2043 for (int id : pickIds) { 2044 View button = findViewById(id); 2045 ((View) button.getParent()).setVisibility(View.GONE); 2046 } 2047 } 2048 } 2049 2050 private int calculatePicturesRemaining() { 2051 mPicturesRemaining = MenuHelper.calculatePicturesRemaining(); 2052 return mPicturesRemaining; 2053 } 2054 2055 @Override 2056 public boolean onPrepareOptionsMenu(Menu menu) { 2057 super.onPrepareOptionsMenu(menu); 2058 // Only show the menu when camera is idle. 2059 for (int i = 0; i < menu.size(); i++) { 2060 menu.getItem(i).setVisible(isCameraIdle()); 2061 } 2062 2063 return true; 2064 } 2065 2066 @Override 2067 public boolean onCreateOptionsMenu(Menu menu) { 2068 super.onCreateOptionsMenu(menu); 2069 2070 if (mIsImageCaptureIntent) { 2071 // No options menu for attach mode. 2072 return false; 2073 } else { 2074 addBaseMenuItems(menu); 2075 } 2076 return true; 2077 } 2078 2079 private void addBaseMenuItems(Menu menu) { 2080 MenuHelper.addSwitchModeMenuItem(menu, true, new Runnable() { 2081 public void run() { 2082 switchToVideoMode(); 2083 } 2084 }); 2085 MenuItem gallery = menu.add(Menu.NONE, Menu.NONE, 2086 MenuHelper.POSITION_GOTO_GALLERY, 2087 R.string.camera_gallery_photos_text) 2088 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2089 public boolean onMenuItemClick(MenuItem item) { 2090 gotoGallery(); 2091 return true; 2092 } 2093 }); 2094 gallery.setIcon(android.R.drawable.ic_menu_gallery); 2095 mGalleryItems.add(gallery); 2096 2097 if (mNumberOfCameras > 1) { 2098 menu.add(Menu.NONE, Menu.NONE, 2099 MenuHelper.POSITION_SWITCH_CAMERA_ID, 2100 R.string.switch_camera_id) 2101 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2102 public boolean onMenuItemClick(MenuItem item) { 2103 switchCameraId((mCameraId + 1) % mNumberOfCameras); 2104 return true; 2105 } 2106 }).setIcon(android.R.drawable.ic_menu_camera); 2107 } 2108 } 2109 2110 private void switchCameraId(int cameraId) { 2111 if (mPausing || !isCameraIdle()) return; 2112 mCameraId = cameraId; 2113 CameraSettings.writePreferredCameraId(mPreferences, cameraId); 2114 2115 stopPreview(); 2116 closeCamera(); 2117 2118 // Remove the messages in the event queue. 2119 mHandler.removeMessages(RESTART_PREVIEW); 2120 2121 // Reset variables 2122 mJpegPictureCallbackTime = 0; 2123 mZoomValue = 0; 2124 2125 // Reload the preferences. 2126 mPreferences.setLocalId(this, mCameraId); 2127 CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); 2128 2129 // Restart the preview. 2130 resetExposureCompensation(); 2131 if (!restartPreview()) return; 2132 2133 initializeZoom(); 2134 2135 // Reload the UI. 2136 if (mFirstTimeInitialized) { 2137 initializeHeadUpDisplay(); 2138 } 2139 } 2140 2141 private boolean switchToVideoMode() { 2142 if (isFinishing() || !isCameraIdle()) return false; 2143 MenuHelper.gotoVideoMode(this); 2144 mHandler.removeMessages(FIRST_TIME_INIT); 2145 finish(); 2146 return true; 2147 } 2148 2149 public boolean onSwitchChanged(Switcher source, boolean onOff) { 2150 if (onOff == SWITCH_VIDEO) { 2151 return switchToVideoMode(); 2152 } else { 2153 return true; 2154 } 2155 } 2156 2157 private void onSharedPreferenceChanged() { 2158 // ignore the events after "onPause()" 2159 if (mPausing) return; 2160 2161 boolean recordLocation; 2162 2163 recordLocation = RecordLocationPreference.get( 2164 mPreferences, getContentResolver()); 2165 2166 if (mRecordLocation != recordLocation) { 2167 mRecordLocation = recordLocation; 2168 if (mRecordLocation) { 2169 startReceivingLocationUpdates(); 2170 } else { 2171 stopReceivingLocationUpdates(); 2172 } 2173 } 2174 int cameraId = CameraSettings.readPreferredCameraId(mPreferences); 2175 if (mCameraId != cameraId) { 2176 switchCameraId(cameraId); 2177 } else { 2178 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 2179 } 2180 } 2181 2182 @Override 2183 public void onUserInteraction() { 2184 super.onUserInteraction(); 2185 keepScreenOnAwhile(); 2186 } 2187 2188 private void resetScreenOn() { 2189 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2190 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2191 } 2192 2193 private void keepScreenOnAwhile() { 2194 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2195 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2196 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2197 } 2198 2199 private class MyHeadUpDisplayListener implements HeadUpDisplay.Listener { 2200 2201 public void onSharedPreferencesChanged() { 2202 Camera.this.onSharedPreferenceChanged(); 2203 } 2204 2205 public void onRestorePreferencesClicked() { 2206 Camera.this.onRestorePreferencesClicked(); 2207 } 2208 2209 public void onPopupWindowVisibilityChanged(int visibility) { 2210 } 2211 } 2212 2213 protected void onRestorePreferencesClicked() { 2214 if (mPausing) return; 2215 Runnable runnable = new Runnable() { 2216 public void run() { 2217 mHeadUpDisplay.restorePreferences(mParameters); 2218 } 2219 }; 2220 MenuHelper.confirmAction(this, 2221 getString(R.string.confirm_restore_title), 2222 getString(R.string.confirm_restore_message), 2223 runnable); 2224 } 2225} 2226 2227class FocusRectangle extends View { 2228 2229 @SuppressWarnings("unused") 2230 private static final String TAG = "FocusRectangle"; 2231 2232 public FocusRectangle(Context context, AttributeSet attrs) { 2233 super(context, attrs); 2234 } 2235 2236 private void setDrawable(int resid) { 2237 setBackgroundDrawable(getResources().getDrawable(resid)); 2238 } 2239 2240 public void showStart() { 2241 setDrawable(R.drawable.focus_focusing); 2242 } 2243 2244 public void showSuccess() { 2245 setDrawable(R.drawable.focus_focused); 2246 } 2247 2248 public void showFail() { 2249 setDrawable(R.drawable.focus_focus_failed); 2250 } 2251 2252 public void clear() { 2253 setBackgroundDrawable(null); 2254 } 2255} 2256 2257/* 2258 * Provide a mapping for Jpeg encoding quality levels 2259 * from String representation to numeric representation. 2260 */ 2261class JpegEncodingQualityMappings { 2262 private static final String TAG = "JpegEncodingQualityMappings"; 2263 private static final int DEFAULT_QUALITY = 85; 2264 private static HashMap<String, Integer> mHashMap = 2265 new HashMap<String, Integer>(); 2266 2267 static { 2268 mHashMap.put("normal", CameraProfile.QUALITY_LOW); 2269 mHashMap.put("fine", CameraProfile.QUALITY_MEDIUM); 2270 mHashMap.put("superfine", CameraProfile.QUALITY_HIGH); 2271 } 2272 2273 // Retrieve and return the Jpeg encoding quality number 2274 // for the given quality level. 2275 public static int getQualityNumber(String jpegQuality) { 2276 Integer quality = mHashMap.get(jpegQuality); 2277 if (quality == null) { 2278 Log.w(TAG, "Unknown Jpeg quality: " + jpegQuality); 2279 return DEFAULT_QUALITY; 2280 } 2281 return CameraProfile.getJpegEncodingQualityParameter(quality.intValue()); 2282 } 2283} 2284