Camera.java revision 125dee14bedc326bfbbb751278d549bafe349135
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.Parameters; 34import android.hardware.Camera.PictureCallback; 35import android.hardware.Camera.Size; 36import android.location.Location; 37import android.location.LocationManager; 38import android.location.LocationProvider; 39import android.media.AudioManager; 40import android.media.CameraProfile; 41import android.media.ToneGenerator; 42import android.net.Uri; 43import android.os.Build; 44import android.os.Bundle; 45import android.os.Debug; 46import android.os.Environment; 47import android.os.Handler; 48import android.os.Looper; 49import android.os.Message; 50import android.os.MessageQueue; 51import android.os.SystemClock; 52import android.preference.PreferenceManager; 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 OrientationEventListener mOrientationListener; 138 private int mLastOrientation = 0; // No rotation (landscape) by default. 139 private SharedPreferences mPreferences; 140 141 private static final int IDLE = 1; 142 private static final int SNAPSHOT_IN_PROGRESS = 2; 143 144 private static final boolean SWITCH_CAMERA = true; 145 private static final boolean SWITCH_VIDEO = false; 146 147 private int mStatus = IDLE; 148 private static final String sTempCropFilename = "crop-temp"; 149 150 private android.hardware.Camera mCameraDevice; 151 private ContentProviderClient mMediaProviderClient; 152 private SurfaceView mSurfaceView; 153 private SurfaceHolder mSurfaceHolder = null; 154 private ShutterButton mShutterButton; 155 private FocusRectangle mFocusRectangle; 156 private ToneGenerator mFocusToneGenerator; 157 private GestureDetector mGestureDetector; 158 private Switcher mSwitcher; 159 private boolean mStartPreviewFail = false; 160 161 private GLRootView mGLRootView; 162 163 // mPostCaptureAlert, mLastPictureButton, mThumbController 164 // are non-null only if isImageCaptureIntent() is true. 165 private ImageView mLastPictureButton; 166 private ThumbnailController mThumbController; 167 168 // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. 169 private String mCropValue; 170 private Uri mSaveUri; 171 172 private ImageCapture mImageCapture = null; 173 174 private boolean mPreviewing; 175 private boolean mPausing; 176 private boolean mFirstTimeInitialized; 177 private boolean mIsImageCaptureIntent; 178 private boolean mRecordLocation; 179 180 private static final int FOCUS_NOT_STARTED = 0; 181 private static final int FOCUSING = 1; 182 private static final int FOCUSING_SNAP_ON_FINISH = 2; 183 private static final int FOCUS_SUCCESS = 3; 184 private static final int FOCUS_FAIL = 4; 185 private int mFocusState = FOCUS_NOT_STARTED; 186 187 private ContentResolver mContentResolver; 188 private boolean mDidRegister = false; 189 190 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 191 192 private LocationManager mLocationManager = null; 193 194 private final ShutterCallback mShutterCallback = new ShutterCallback(); 195 private final PostViewPictureCallback mPostViewPictureCallback = 196 new PostViewPictureCallback(); 197 private final RawPictureCallback mRawPictureCallback = 198 new RawPictureCallback(); 199 private final AutoFocusCallback mAutoFocusCallback = 200 new AutoFocusCallback(); 201 private final ZoomListener mZoomListener = new ZoomListener(); 202 // Use the ErrorCallback to capture the crash count 203 // on the mediaserver 204 private final ErrorCallback mErrorCallback = new ErrorCallback(); 205 206 private long mFocusStartTime; 207 private long mFocusCallbackTime; 208 private long mCaptureStartTime; 209 private long mShutterCallbackTime; 210 private long mPostViewPictureCallbackTime; 211 private long mRawPictureCallbackTime; 212 private long mJpegPictureCallbackTime; 213 private int mPicturesRemaining; 214 215 // These latency time are for the CameraLatency test. 216 public long mAutoFocusTime; 217 public long mShutterLag; 218 public long mShutterToPictureDisplayedTime; 219 public long mPictureDisplayedToJpegCallbackTime; 220 public long mJpegCallbackFinishTime; 221 222 // Add for test 223 public static boolean mMediaServerDied = false; 224 225 // Focus mode. Options are pref_camera_focusmode_entryvalues. 226 private String mFocusMode; 227 private String mSceneMode; 228 229 private final Handler mHandler = new MainHandler(); 230 private boolean mQuickCapture; 231 private CameraHeadUpDisplay mHeadUpDisplay; 232 233 /** 234 * This Handler is used to post message back onto the main thread of the 235 * application 236 */ 237 private class MainHandler extends Handler { 238 @Override 239 public void handleMessage(Message msg) { 240 switch (msg.what) { 241 case RESTART_PREVIEW: { 242 restartPreview(); 243 if (mJpegPictureCallbackTime != 0) { 244 long now = System.currentTimeMillis(); 245 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 246 Log.v(TAG, "mJpegCallbackFinishTime = " 247 + mJpegCallbackFinishTime + "ms"); 248 mJpegPictureCallbackTime = 0; 249 } 250 break; 251 } 252 253 case CLEAR_SCREEN_DELAY: { 254 getWindow().clearFlags( 255 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 256 break; 257 } 258 259 case FIRST_TIME_INIT: { 260 initializeFirstTime(); 261 break; 262 } 263 264 case SET_CAMERA_PARAMETERS_WHEN_IDLE: { 265 setCameraParametersWhenIdle(0); 266 break; 267 } 268 } 269 } 270 } 271 272 private void resetExposureCompensation() { 273 String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, 274 CameraSettings.EXPOSURE_DEFAULT_VALUE); 275 if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { 276 Editor editor = mPreferences.edit(); 277 editor.putString(CameraSettings.KEY_EXPOSURE, "0"); 278 editor.commit(); 279 if (mHeadUpDisplay != null) { 280 mHeadUpDisplay.reloadPreferences(); 281 } 282 } 283 } 284 285 private void keepMediaProviderInstance() { 286 // We want to keep a reference to MediaProvider in camera's lifecycle. 287 // TODO: Utilize mMediaProviderClient instance to replace 288 // ContentResolver calls. 289 if (mMediaProviderClient == null) { 290 mMediaProviderClient = getContentResolver() 291 .acquireContentProviderClient(MediaStore.AUTHORITY); 292 } 293 } 294 295 // Snapshots can only be taken after this is called. It should be called 296 // once only. We could have done these things in onCreate() but we want to 297 // make preview screen appear as soon as possible. 298 private void initializeFirstTime() { 299 if (mFirstTimeInitialized) return; 300 301 // Create orientation listenter. This should be done first because it 302 // takes some time to get first orientation. 303 mOrientationListener = new OrientationEventListener(Camera.this) { 304 @Override 305 public void onOrientationChanged(int orientation) { 306 // We keep the last known orientation. So if the user 307 // first orient the camera then point the camera to 308 if (orientation != ORIENTATION_UNKNOWN) { 309 orientation += 90; 310 } 311 orientation = ImageManager.roundOrientation(orientation); 312 if (orientation != mLastOrientation) { 313 mLastOrientation = orientation; 314 if (!mIsImageCaptureIntent) { 315 setOrientationIndicator(mLastOrientation); 316 } 317 if (mGLRootView != null) { 318 mHeadUpDisplay.setOrientation(mLastOrientation); 319 } 320 } 321 } 322 }; 323 mOrientationListener.enable(); 324 325 // Initialize location sevice. 326 mLocationManager = (LocationManager) 327 getSystemService(Context.LOCATION_SERVICE); 328 mRecordLocation = RecordLocationPreference.get( 329 mPreferences, getContentResolver()); 330 if (mRecordLocation) startReceivingLocationUpdates(); 331 332 keepMediaProviderInstance(); 333 checkStorage(); 334 335 // Initialize last picture button. 336 mContentResolver = getContentResolver(); 337 if (!mIsImageCaptureIntent) { 338 findViewById(R.id.camera_switch).setOnClickListener(this); 339 mLastPictureButton = 340 (ImageView) findViewById(R.id.review_thumbnail); 341 mLastPictureButton.setOnClickListener(this); 342 mThumbController = new ThumbnailController( 343 getResources(), mLastPictureButton, mContentResolver); 344 mThumbController.loadData(ImageManager.getLastImageThumbPath()); 345 // Update last image thumbnail. 346 updateThumbnailButton(); 347 } 348 349 // Initialize shutter button. 350 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 351 mShutterButton.setOnShutterButtonListener(this); 352 mShutterButton.setVisibility(View.VISIBLE); 353 354 mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); 355 updateFocusIndicator(); 356 357 initializeScreenBrightness(); 358 installIntentFilter(); 359 initializeFocusTone(); 360 initializeZoom(); 361 mFirstTimeInitialized = true; 362 changeHeadUpDisplayState(); 363 addIdleHandler(); 364 } 365 366 private void addIdleHandler() { 367 MessageQueue queue = Looper.myQueue(); 368 queue.addIdleHandler(new MessageQueue.IdleHandler() { 369 public boolean queueIdle() { 370 ImageManager.ensureOSXCompatibleFolder(); 371 return false; 372 } 373 }); 374 } 375 376 private void updateThumbnailButton() { 377 // Update last image if URI is invalid and the storage is ready. 378 if (!mThumbController.isUriValid() && mPicturesRemaining >= 0) { 379 updateLastImage(); 380 } 381 mThumbController.updateDisplayIfNeeded(); 382 } 383 384 // If the activity is paused and resumed, this method will be called in 385 // onResume. 386 private void initializeSecondTime() { 387 // Start orientation listener as soon as possible because it takes 388 // some time to get first orientation. 389 mOrientationListener.enable(); 390 391 // Start location update if needed. 392 mRecordLocation = RecordLocationPreference.get( 393 mPreferences, getContentResolver()); 394 if (mRecordLocation) startReceivingLocationUpdates(); 395 396 installIntentFilter(); 397 initializeFocusTone(); 398 initializeZoom(); 399 changeHeadUpDisplayState(); 400 401 keepMediaProviderInstance(); 402 checkStorage(); 403 404 if (!mIsImageCaptureIntent) { 405 updateThumbnailButton(); 406 } 407 } 408 409 private void initializeZoom() { 410 if (!mParameters.isZoomSupported()) return; 411 412 mZoomMax = mParameters.getMaxZoom(); 413 mSmoothZoomSupported = mParameters.isSmoothZoomSupported(); 414 mGestureDetector = new GestureDetector(this, new ZoomGestureListener()); 415 416 mCameraDevice.setZoomChangeListener(mZoomListener); 417 } 418 419 private void onZoomValueChanged(int index) { 420 if (mSmoothZoomSupported) { 421 if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { 422 mTargetZoomValue = index; 423 if (mZoomState == ZOOM_START) { 424 mZoomState = ZOOM_STOPPING; 425 mCameraDevice.stopSmoothZoom(); 426 } 427 } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { 428 mTargetZoomValue = index; 429 mCameraDevice.startSmoothZoom(index); 430 mZoomState = ZOOM_START; 431 } 432 } else { 433 mZoomValue = index; 434 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 435 } 436 } 437 438 private float[] getZoomRatios() { 439 List<Integer> zoomRatios = mParameters.getZoomRatios(); 440 if (zoomRatios != null) { 441 float result[] = new float[zoomRatios.size()]; 442 for (int i = 0, n = result.length; i < n; ++i) { 443 result[i] = (float) zoomRatios.get(i) / 100f; 444 } 445 return result; 446 } else { 447 throw new IllegalStateException("cannot get zoom ratios"); 448 } 449 } 450 451 private class ZoomGestureListener extends 452 GestureDetector.SimpleOnGestureListener { 453 454 @Override 455 public boolean onDoubleTap(MotionEvent e) { 456 // Perform zoom only when preview is started and snapshot is not in 457 // progress. 458 if (mPausing || !isCameraIdle() || !mPreviewing 459 || mHeadUpDisplay == null || mZoomState != ZOOM_STOPPED) { 460 return false; 461 } 462 463 if (mZoomValue < mZoomMax) { 464 // Zoom in to the maximum. 465 mZoomValue = mZoomMax; 466 } else { 467 mZoomValue = 0; 468 } 469 470 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 471 472 mHeadUpDisplay.setZoomIndex(mZoomValue); 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 checkStorage(); 498 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 499 checkStorage(); 500 if (!mIsImageCaptureIntent) { 501 updateThumbnailButton(); 502 } 503 } 504 } 505 }; 506 507 private class LocationListener 508 implements android.location.LocationListener { 509 Location mLastLocation; 510 boolean mValid = false; 511 String mProvider; 512 513 public LocationListener(String provider) { 514 mProvider = provider; 515 mLastLocation = new Location(mProvider); 516 } 517 518 public void onLocationChanged(Location newLocation) { 519 if (newLocation.getLatitude() == 0.0 520 && newLocation.getLongitude() == 0.0) { 521 // Hack to filter out 0.0,0.0 locations 522 return; 523 } 524 // If GPS is available before start camera, we won't get status 525 // update so update GPS indicator when we receive data. 526 if (mRecordLocation 527 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 528 if (mHeadUpDisplay != null) { 529 mHeadUpDisplay.setGpsHasSignal(true); 530 } 531 } 532 mLastLocation.set(newLocation); 533 mValid = true; 534 } 535 536 public void onProviderEnabled(String provider) { 537 } 538 539 public void onProviderDisabled(String provider) { 540 mValid = false; 541 } 542 543 public void onStatusChanged( 544 String provider, int status, Bundle extras) { 545 switch(status) { 546 case LocationProvider.OUT_OF_SERVICE: 547 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 548 mValid = false; 549 if (mRecordLocation && 550 LocationManager.GPS_PROVIDER.equals(provider)) { 551 if (mHeadUpDisplay != null) { 552 mHeadUpDisplay.setGpsHasSignal(false); 553 } 554 } 555 break; 556 } 557 } 558 } 559 560 public Location current() { 561 return mValid ? mLastLocation : null; 562 } 563 } 564 565 private final class ShutterCallback 566 implements android.hardware.Camera.ShutterCallback { 567 public void onShutter() { 568 mShutterCallbackTime = System.currentTimeMillis(); 569 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 570 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 571 clearFocusState(); 572 } 573 } 574 575 private final class PostViewPictureCallback implements PictureCallback { 576 public void onPictureTaken( 577 byte [] data, android.hardware.Camera camera) { 578 mPostViewPictureCallbackTime = System.currentTimeMillis(); 579 Log.v(TAG, "mShutterToPostViewCallbackTime = " 580 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 581 + "ms"); 582 } 583 } 584 585 private final class RawPictureCallback implements PictureCallback { 586 public void onPictureTaken( 587 byte [] rawData, android.hardware.Camera camera) { 588 mRawPictureCallbackTime = System.currentTimeMillis(); 589 Log.v(TAG, "mShutterToRawCallbackTime = " 590 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 591 } 592 } 593 594 private final class JpegPictureCallback implements PictureCallback { 595 Location mLocation; 596 597 public JpegPictureCallback(Location loc) { 598 mLocation = loc; 599 } 600 601 public void onPictureTaken( 602 final byte [] jpegData, final android.hardware.Camera camera) { 603 if (mPausing) { 604 return; 605 } 606 607 mJpegPictureCallbackTime = System.currentTimeMillis(); 608 // If postview callback has arrived, the captured image is displayed 609 // in postview callback. If not, the captured image is displayed in 610 // raw picture callback. 611 if (mPostViewPictureCallbackTime != 0) { 612 mShutterToPictureDisplayedTime = 613 mPostViewPictureCallbackTime - mShutterCallbackTime; 614 mPictureDisplayedToJpegCallbackTime = 615 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 616 } else { 617 mShutterToPictureDisplayedTime = 618 mRawPictureCallbackTime - mShutterCallbackTime; 619 mPictureDisplayedToJpegCallbackTime = 620 mJpegPictureCallbackTime - mRawPictureCallbackTime; 621 } 622 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 623 + mPictureDisplayedToJpegCallbackTime + "ms"); 624 mHeadUpDisplay.setEnabled(true); 625 626 if (!mIsImageCaptureIntent) { 627 // We want to show the taken picture for a while, so we wait 628 // for at least 1.2 second before restarting the preview. 629 long delay = 1200 - mPictureDisplayedToJpegCallbackTime; 630 if (delay < 0 || mQuickCapture) { 631 restartPreview(); 632 } else { 633 mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay); 634 } 635 } 636 mImageCapture.storeImage(jpegData, camera, mLocation); 637 638 // Calculate this in advance of each shot so we don't add to shutter 639 // latency. It's true that someone else could write to the SD card in 640 // the mean time and fill it, but that could have happened between the 641 // shutter press and saving the JPEG too. 642 calculatePicturesRemaining(); 643 644 if (mPicturesRemaining < 1) { 645 updateStorageHint(mPicturesRemaining); 646 } 647 648 if (!mHandler.hasMessages(RESTART_PREVIEW)) { 649 long now = System.currentTimeMillis(); 650 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 651 Log.v(TAG, "mJpegCallbackFinishTime = " 652 + mJpegCallbackFinishTime + "ms"); 653 mJpegPictureCallbackTime = 0; 654 } 655 } 656 } 657 658 private final class AutoFocusCallback 659 implements android.hardware.Camera.AutoFocusCallback { 660 public void onAutoFocus( 661 boolean focused, android.hardware.Camera camera) { 662 mFocusCallbackTime = System.currentTimeMillis(); 663 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 664 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 665 if (mFocusState == FOCUSING_SNAP_ON_FINISH) { 666 // Take the picture no matter focus succeeds or fails. No need 667 // to play the AF sound if we're about to play the shutter 668 // sound. 669 if (focused) { 670 mFocusState = FOCUS_SUCCESS; 671 } else { 672 mFocusState = FOCUS_FAIL; 673 } 674 mImageCapture.onSnap(); 675 } else if (mFocusState == FOCUSING) { 676 // User is half-pressing the focus key. Play the focus tone. 677 // Do not take the picture now. 678 ToneGenerator tg = mFocusToneGenerator; 679 if (tg != null) { 680 tg.startTone(ToneGenerator.TONE_PROP_BEEP2); 681 } 682 if (focused) { 683 mFocusState = FOCUS_SUCCESS; 684 } else { 685 mFocusState = FOCUS_FAIL; 686 } 687 } else if (mFocusState == FOCUS_NOT_STARTED) { 688 // User has released the focus key before focus completes. 689 // Do nothing. 690 } 691 updateFocusIndicator(); 692 } 693 } 694 695 private static final class ErrorCallback 696 implements android.hardware.Camera.ErrorCallback { 697 public void onError(int error, android.hardware.Camera camera) { 698 if (error == android.hardware.Camera.CAMERA_ERROR_SERVER_DIED) { 699 mMediaServerDied = true; 700 Log.v(TAG, "media server died"); 701 } 702 } 703 } 704 705 private final class ZoomListener 706 implements android.hardware.Camera.OnZoomChangeListener { 707 public void onZoomChange( 708 int value, boolean stopped, android.hardware.Camera camera) { 709 Log.v(TAG, "Zoom changed: value=" + value + ". stopped="+ stopped); 710 mZoomValue = value; 711 // Keep mParameters up to date. We do not getParameter again in 712 // takePicture. If we do not do this, wrong zoom value will be set. 713 mParameters.setZoom(value); 714 // We only care if the zoom is stopped. mZooming is set to true when 715 // we start smooth zoom. 716 if (stopped && mZoomState != ZOOM_STOPPED) { 717 if (value != mTargetZoomValue) { 718 mCameraDevice.startSmoothZoom(mTargetZoomValue); 719 mZoomState = ZOOM_START; 720 } else { 721 mZoomState = ZOOM_STOPPED; 722 } 723 } 724 } 725 } 726 727 private class ImageCapture { 728 729 private Uri mLastContentUri; 730 731 byte[] mCaptureOnlyData; 732 733 // Returns the rotation degree in the jpeg header. 734 private int storeImage(byte[] data, Location loc) { 735 try { 736 long dateTaken = System.currentTimeMillis(); 737 String title = createName(dateTaken); 738 String filename = title + ".jpg"; 739 int[] degree = new int[1]; 740 mLastContentUri = ImageManager.addImage( 741 mContentResolver, 742 title, 743 dateTaken, 744 loc, // location from gps/network 745 ImageManager.CAMERA_IMAGE_BUCKET_NAME, filename, 746 null, data, 747 degree); 748 return degree[0]; 749 } catch (Exception ex) { 750 Log.e(TAG, "Exception while compressing image.", ex); 751 return 0; 752 } 753 } 754 755 public void storeImage(final byte[] data, 756 android.hardware.Camera camera, Location loc) { 757 if (!mIsImageCaptureIntent) { 758 int degree = storeImage(data, loc); 759 sendBroadcast(new Intent( 760 "com.android.camera.NEW_PICTURE", mLastContentUri)); 761 setLastPictureThumb(data, degree, 762 mImageCapture.getLastCaptureUri()); 763 mThumbController.updateDisplayIfNeeded(); 764 } else { 765 mCaptureOnlyData = data; 766 showPostCaptureAlert(); 767 } 768 } 769 770 /** 771 * Initiate the capture of an image. 772 */ 773 public void initiate() { 774 if (mCameraDevice == null) { 775 return; 776 } 777 778 capture(); 779 } 780 781 public Uri getLastCaptureUri() { 782 return mLastContentUri; 783 } 784 785 public byte[] getLastCaptureData() { 786 return mCaptureOnlyData; 787 } 788 789 private void capture() { 790 mCaptureOnlyData = null; 791 792 // Set rotation. 793 mParameters.setRotation(mLastOrientation); 794 795 // Clear previous GPS location from the parameters. 796 mParameters.removeGpsData(); 797 798 // We always encode GpsTimeStamp 799 mParameters.setGpsTimestamp(System.currentTimeMillis() / 1000); 800 801 // Set GPS location. 802 Location loc = mRecordLocation ? getCurrentLocation() : null; 803 if (loc != null) { 804 double lat = loc.getLatitude(); 805 double lon = loc.getLongitude(); 806 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 807 808 if (hasLatLon) { 809 mParameters.setGpsLatitude(lat); 810 mParameters.setGpsLongitude(lon); 811 mParameters.setGpsProcessingMethod(loc.getProvider().toUpperCase()); 812 if (loc.hasAltitude()) { 813 mParameters.setGpsAltitude(loc.getAltitude()); 814 } else { 815 // for NETWORK_PROVIDER location provider, we may have 816 // no altitude information, but the driver needs it, so 817 // we fake one. 818 mParameters.setGpsAltitude(0); 819 } 820 if (loc.getTime() != 0) { 821 // Location.getTime() is UTC in milliseconds. 822 // gps-timestamp is UTC in seconds. 823 long utcTimeSeconds = loc.getTime() / 1000; 824 mParameters.setGpsTimestamp(utcTimeSeconds); 825 } 826 } else { 827 loc = null; 828 } 829 } 830 831 mCameraDevice.setParameters(mParameters); 832 833 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 834 mPostViewPictureCallback, new JpegPictureCallback(loc)); 835 mPreviewing = false; 836 } 837 838 public void onSnap() { 839 // If we are already in the middle of taking a snapshot then ignore. 840 if (mPausing || mStatus == SNAPSHOT_IN_PROGRESS) { 841 return; 842 } 843 mCaptureStartTime = System.currentTimeMillis(); 844 mPostViewPictureCallbackTime = 0; 845 mHeadUpDisplay.setEnabled(false); 846 mStatus = SNAPSHOT_IN_PROGRESS; 847 848 mImageCapture.initiate(); 849 } 850 851 private void clearLastData() { 852 mCaptureOnlyData = null; 853 } 854 } 855 856 private boolean saveDataToFile(String filePath, byte[] data) { 857 FileOutputStream f = null; 858 try { 859 f = new FileOutputStream(filePath); 860 f.write(data); 861 } catch (IOException e) { 862 return false; 863 } finally { 864 MenuHelper.closeSilently(f); 865 } 866 return true; 867 } 868 869 private void setLastPictureThumb(byte[] data, int degree, Uri uri) { 870 BitmapFactory.Options options = new BitmapFactory.Options(); 871 options.inSampleSize = 16; 872 Bitmap lastPictureThumb = 873 BitmapFactory.decodeByteArray(data, 0, data.length, options); 874 lastPictureThumb = Util.rotate(lastPictureThumb, degree); 875 mThumbController.setData(uri, lastPictureThumb); 876 } 877 878 private String createName(long dateTaken) { 879 Date date = new Date(dateTaken); 880 SimpleDateFormat dateFormat = new SimpleDateFormat( 881 getString(R.string.image_file_name_format)); 882 883 return dateFormat.format(date); 884 } 885 886 @Override 887 public void onCreate(Bundle icicle) { 888 super.onCreate(icicle); 889 890 setContentView(R.layout.camera); 891 mSurfaceView = (SurfaceView) findViewById(R.id.camera_preview); 892 893 mPreferences = PreferenceManager.getDefaultSharedPreferences(this); 894 CameraSettings.upgradePreferences(mPreferences); 895 896 mQuickCapture = getQuickCaptureSettings(); 897 898 // comment out -- unused now. 899 //mQuickCapture = getQuickCaptureSettings(); 900 901 // we need to reset exposure for the preview 902 resetExposureCompensation(); 903 /* 904 * To reduce startup time, we start the preview in another thread. 905 * We make sure the preview is started at the end of onCreate. 906 */ 907 Thread startPreviewThread = new Thread(new Runnable() { 908 public void run() { 909 try { 910 mStartPreviewFail = false; 911 startPreview(); 912 } catch (CameraHardwareException e) { 913 // In eng build, we throw the exception so that test tool 914 // can detect it and report it 915 if ("eng".equals(Build.TYPE)) { 916 throw new RuntimeException(e); 917 } 918 mStartPreviewFail = true; 919 } 920 } 921 }); 922 startPreviewThread.start(); 923 924 // don't set mSurfaceHolder here. We have it set ONLY within 925 // surfaceChanged / surfaceDestroyed, other parts of the code 926 // assume that when it is set, the surface is also set. 927 SurfaceHolder holder = mSurfaceView.getHolder(); 928 holder.addCallback(this); 929 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 930 931 mIsImageCaptureIntent = isImageCaptureIntent(); 932 if (mIsImageCaptureIntent) { 933 setupCaptureParams(); 934 } 935 936 LayoutInflater inflater = getLayoutInflater(); 937 938 ViewGroup rootView = (ViewGroup) findViewById(R.id.camera); 939 if (mIsImageCaptureIntent) { 940 View controlBar = inflater.inflate( 941 R.layout.attach_camera_control, rootView); 942 controlBar.findViewById(R.id.btn_cancel).setOnClickListener(this); 943 controlBar.findViewById(R.id.btn_retake).setOnClickListener(this); 944 controlBar.findViewById(R.id.btn_done).setOnClickListener(this); 945 } else { 946 inflater.inflate(R.layout.camera_control, rootView); 947 mSwitcher = ((Switcher) findViewById(R.id.camera_switch)); 948 mSwitcher.setOnSwitchListener(this); 949 mSwitcher.addTouchView(findViewById(R.id.camera_switch_set)); 950 } 951 952 // Make sure preview is started. 953 try { 954 startPreviewThread.join(); 955 if (mStartPreviewFail) { 956 showCameraErrorAndFinish(); 957 return; 958 } 959 } catch (InterruptedException ex) { 960 // ignore 961 } 962 } 963 964 private void changeHeadUpDisplayState() { 965 // If the camera resumes behind the lock screen, the orientation 966 // will be portrait. That causes OOM when we try to allocation GPU 967 // memory for the GLSurfaceView again when the orientation changes. So, 968 // we delayed initialization of HeadUpDisplay until the orientation 969 // becomes landscape. 970 Configuration config = getResources().getConfiguration(); 971 if (config.orientation == Configuration.ORIENTATION_LANDSCAPE 972 && !mPausing && mFirstTimeInitialized) { 973 if (mGLRootView == null) initializeHeadUpDisplay(); 974 } else if (mGLRootView != null) { 975 finalizeHeadUpDisplay(); 976 } 977 } 978 979 private void overrideHudSettings(final String flashMode, 980 final String whiteBalance, final String focusMode) { 981 mHeadUpDisplay.overrideSettings( 982 CameraSettings.KEY_FLASH_MODE, flashMode, 983 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 984 CameraSettings.KEY_FOCUS_MODE, focusMode); 985 } 986 987 private void updateSceneModeInHud() { 988 // If scene mode is set, we cannot set flash mode, white balance, and 989 // focus mode, instead, we read it from driver 990 if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 991 overrideHudSettings(mParameters.getFlashMode(), 992 mParameters.getWhiteBalance(), mParameters.getFocusMode()); 993 } else { 994 overrideHudSettings(null, null, null); 995 } 996 } 997 998 private void initializeHeadUpDisplay() { 999 FrameLayout frame = (FrameLayout) findViewById(R.id.frame); 1000 mGLRootView = new GLRootView(this); 1001 frame.addView(mGLRootView); 1002 1003 mHeadUpDisplay = new CameraHeadUpDisplay(this); 1004 CameraSettings settings = new CameraSettings(this, mInitialParams); 1005 mHeadUpDisplay.initialize(this, 1006 settings.getPreferenceGroup(R.xml.camera_preferences)); 1007 mHeadUpDisplay.setListener(new MyHeadUpDisplayListener()); 1008 mHeadUpDisplay.setOrientation(mLastOrientation); 1009 1010 if (mParameters.isZoomSupported()) { 1011 mHeadUpDisplay.setZoomRatios(getZoomRatios()); 1012 mHeadUpDisplay.setZoomIndex(mZoomValue); 1013 mHeadUpDisplay.setZoomListener(new ZoomControllerListener() { 1014 public void onZoomChanged( 1015 int index, float ratio, boolean isMoving) { 1016 onZoomValueChanged(index); 1017 } 1018 }); 1019 } 1020 1021 updateSceneModeInHud(); 1022 1023 mGLRootView.setContentPane(mHeadUpDisplay); 1024 } 1025 1026 private void finalizeHeadUpDisplay() { 1027 mHeadUpDisplay.setGpsHasSignal(false); 1028 mHeadUpDisplay.collapse(); 1029 ((ViewGroup) mGLRootView.getParent()).removeView(mGLRootView); 1030 mGLRootView = null; 1031 } 1032 1033 private void setOrientationIndicator(int degree) { 1034 ((RotateImageView) findViewById( 1035 R.id.review_thumbnail)).setDegree(degree); 1036 ((RotateImageView) findViewById( 1037 R.id.camera_switch_icon)).setDegree(degree); 1038 ((RotateImageView) findViewById( 1039 R.id.video_switch_icon)).setDegree(degree); 1040 } 1041 1042 @Override 1043 public void onStart() { 1044 super.onStart(); 1045 if (!mIsImageCaptureIntent) { 1046 mSwitcher.setSwitch(SWITCH_CAMERA); 1047 } 1048 } 1049 1050 @Override 1051 public void onStop() { 1052 super.onStop(); 1053 if (mMediaProviderClient != null) { 1054 mMediaProviderClient.release(); 1055 mMediaProviderClient = null; 1056 } 1057 } 1058 1059 private void checkStorage() { 1060 calculatePicturesRemaining(); 1061 updateStorageHint(mPicturesRemaining); 1062 } 1063 1064 public void onClick(View v) { 1065 switch (v.getId()) { 1066 case R.id.btn_retake: 1067 hidePostCaptureAlert(); 1068 restartPreview(); 1069 break; 1070 case R.id.review_thumbnail: 1071 if (isCameraIdle()) { 1072 viewLastImage(); 1073 } 1074 break; 1075 case R.id.btn_done: 1076 doAttach(); 1077 break; 1078 case R.id.btn_cancel: 1079 doCancel(); 1080 } 1081 } 1082 1083 private Bitmap createCaptureBitmap(byte[] data) { 1084 // This is really stupid...we just want to read the orientation in 1085 // the jpeg header. 1086 String filepath = ImageManager.getTempJpegPath(); 1087 int degree = 0; 1088 if (saveDataToFile(filepath, data)) { 1089 degree = ImageManager.getExifOrientation(filepath); 1090 new File(filepath).delete(); 1091 } 1092 1093 // Limit to 50k pixels so we can return it in the intent. 1094 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1095 bitmap = Util.rotate(bitmap, degree); 1096 return bitmap; 1097 } 1098 1099 private void doAttach() { 1100 if (mPausing) { 1101 return; 1102 } 1103 1104 byte[] data = mImageCapture.getLastCaptureData(); 1105 1106 if (mCropValue == null) { 1107 // First handle the no crop case -- just return the value. If the 1108 // caller specifies a "save uri" then write the data to it's 1109 // stream. Otherwise, pass back a scaled down version of the bitmap 1110 // directly in the extras. 1111 if (mSaveUri != null) { 1112 OutputStream outputStream = null; 1113 try { 1114 outputStream = mContentResolver.openOutputStream(mSaveUri); 1115 outputStream.write(data); 1116 outputStream.close(); 1117 1118 setResult(RESULT_OK); 1119 finish(); 1120 } catch (IOException ex) { 1121 // ignore exception 1122 } finally { 1123 Util.closeSilently(outputStream); 1124 } 1125 } else { 1126 Bitmap bitmap = createCaptureBitmap(data); 1127 setResult(RESULT_OK, 1128 new Intent("inline-data").putExtra("data", bitmap)); 1129 finish(); 1130 } 1131 } else { 1132 // Save the image to a temp file and invoke the cropper 1133 Uri tempUri = null; 1134 FileOutputStream tempStream = null; 1135 try { 1136 File path = getFileStreamPath(sTempCropFilename); 1137 path.delete(); 1138 tempStream = openFileOutput(sTempCropFilename, 0); 1139 tempStream.write(data); 1140 tempStream.close(); 1141 tempUri = Uri.fromFile(path); 1142 } catch (FileNotFoundException ex) { 1143 setResult(Activity.RESULT_CANCELED); 1144 finish(); 1145 return; 1146 } catch (IOException ex) { 1147 setResult(Activity.RESULT_CANCELED); 1148 finish(); 1149 return; 1150 } finally { 1151 Util.closeSilently(tempStream); 1152 } 1153 1154 Bundle newExtras = new Bundle(); 1155 if (mCropValue.equals("circle")) { 1156 newExtras.putString("circleCrop", "true"); 1157 } 1158 if (mSaveUri != null) { 1159 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1160 } else { 1161 newExtras.putBoolean("return-data", true); 1162 } 1163 1164 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1165 1166 cropIntent.setData(tempUri); 1167 cropIntent.putExtras(newExtras); 1168 1169 startActivityForResult(cropIntent, CROP_MSG); 1170 } 1171 } 1172 1173 private void doCancel() { 1174 setResult(RESULT_CANCELED, new Intent()); 1175 finish(); 1176 } 1177 1178 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1179 if (mPausing) { 1180 return; 1181 } 1182 switch (button.getId()) { 1183 case R.id.shutter_button: 1184 doFocus(pressed); 1185 break; 1186 } 1187 } 1188 1189 public void onShutterButtonClick(ShutterButton button) { 1190 if (mPausing) { 1191 return; 1192 } 1193 switch (button.getId()) { 1194 case R.id.shutter_button: 1195 doSnap(); 1196 break; 1197 } 1198 } 1199 1200 private OnScreenHint mStorageHint; 1201 1202 private void updateStorageHint(int remaining) { 1203 String noStorageText = null; 1204 1205 if (remaining == MenuHelper.NO_STORAGE_ERROR) { 1206 String state = Environment.getExternalStorageState(); 1207 if (state == Environment.MEDIA_CHECKING) { 1208 noStorageText = getString(R.string.preparing_sd); 1209 } else { 1210 noStorageText = getString(R.string.no_storage); 1211 } 1212 } else if (remaining < 1) { 1213 noStorageText = getString(R.string.not_enough_space); 1214 } 1215 1216 if (noStorageText != null) { 1217 if (mStorageHint == null) { 1218 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1219 } else { 1220 mStorageHint.setText(noStorageText); 1221 } 1222 mStorageHint.show(); 1223 } else if (mStorageHint != null) { 1224 mStorageHint.cancel(); 1225 mStorageHint = null; 1226 } 1227 } 1228 1229 private void installIntentFilter() { 1230 // install an intent filter to receive SD card related events. 1231 IntentFilter intentFilter = 1232 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1233 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1234 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1235 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1236 intentFilter.addDataScheme("file"); 1237 registerReceiver(mReceiver, intentFilter); 1238 mDidRegister = true; 1239 } 1240 1241 private void initializeFocusTone() { 1242 // Initialize focus tone generator. 1243 try { 1244 mFocusToneGenerator = new ToneGenerator( 1245 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1246 } catch (Throwable ex) { 1247 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1248 mFocusToneGenerator = null; 1249 } 1250 } 1251 1252 private void initializeScreenBrightness() { 1253 Window win = getWindow(); 1254 // Overright the brightness settings if it is automatic 1255 int mode = Settings.System.getInt( 1256 getContentResolver(), 1257 Settings.System.SCREEN_BRIGHTNESS_MODE, 1258 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); 1259 if (mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC) { 1260 WindowManager.LayoutParams winParams = win.getAttributes(); 1261 winParams.screenBrightness = DEFAULT_CAMERA_BRIGHTNESS; 1262 win.setAttributes(winParams); 1263 } 1264 } 1265 1266 @Override 1267 protected void onResume() { 1268 super.onResume(); 1269 1270 mPausing = false; 1271 mJpegPictureCallbackTime = 0; 1272 mZoomValue = 0; 1273 mImageCapture = new ImageCapture(); 1274 1275 // Start the preview if it is not started. 1276 if (!mPreviewing && !mStartPreviewFail) { 1277 resetExposureCompensation(); 1278 try { 1279 startPreview(); 1280 } catch (CameraHardwareException e) { 1281 showCameraErrorAndFinish(); 1282 return; 1283 } 1284 } 1285 1286 if (mSurfaceHolder != null) { 1287 // If first time initialization is not finished, put it in the 1288 // message queue. 1289 if (!mFirstTimeInitialized) { 1290 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1291 } else { 1292 initializeSecondTime(); 1293 } 1294 } 1295 keepScreenOnAwhile(); 1296 } 1297 1298 @Override 1299 public void onConfigurationChanged(Configuration config) { 1300 super.onConfigurationChanged(config); 1301 changeHeadUpDisplayState(); 1302 } 1303 1304 private static ImageManager.DataLocation dataLocation() { 1305 return ImageManager.DataLocation.EXTERNAL; 1306 } 1307 1308 @Override 1309 protected void onPause() { 1310 mPausing = true; 1311 stopPreview(); 1312 // Close the camera now because other activities may need to use it. 1313 closeCamera(); 1314 resetScreenOn(); 1315 changeHeadUpDisplayState(); 1316 1317 if (mFirstTimeInitialized) { 1318 mOrientationListener.disable(); 1319 if (!mIsImageCaptureIntent) { 1320 mThumbController.storeData( 1321 ImageManager.getLastImageThumbPath()); 1322 } 1323 hidePostCaptureAlert(); 1324 } 1325 1326 if (mDidRegister) { 1327 unregisterReceiver(mReceiver); 1328 mDidRegister = false; 1329 } 1330 stopReceivingLocationUpdates(); 1331 1332 if (mFocusToneGenerator != null) { 1333 mFocusToneGenerator.release(); 1334 mFocusToneGenerator = null; 1335 } 1336 1337 if (mStorageHint != null) { 1338 mStorageHint.cancel(); 1339 mStorageHint = null; 1340 } 1341 1342 // If we are in an image capture intent and has taken 1343 // a picture, we just clear it in onPause. 1344 mImageCapture.clearLastData(); 1345 mImageCapture = null; 1346 1347 // Remove the messages in the event queue. 1348 mHandler.removeMessages(RESTART_PREVIEW); 1349 mHandler.removeMessages(FIRST_TIME_INIT); 1350 1351 super.onPause(); 1352 } 1353 1354 @Override 1355 protected void onActivityResult( 1356 int requestCode, int resultCode, Intent data) { 1357 switch (requestCode) { 1358 case CROP_MSG: { 1359 Intent intent = new Intent(); 1360 if (data != null) { 1361 Bundle extras = data.getExtras(); 1362 if (extras != null) { 1363 intent.putExtras(extras); 1364 } 1365 } 1366 setResult(resultCode, intent); 1367 finish(); 1368 1369 File path = getFileStreamPath(sTempCropFilename); 1370 path.delete(); 1371 1372 break; 1373 } 1374 } 1375 } 1376 1377 private boolean canTakePicture() { 1378 return isCameraIdle() && mPreviewing && (mPicturesRemaining > 0); 1379 } 1380 1381 private void autoFocus() { 1382 // Initiate autofocus only when preview is started and snapshot is not 1383 // in progress. 1384 if (canTakePicture()) { 1385 mHeadUpDisplay.setEnabled(false); 1386 Log.v(TAG, "Start autofocus."); 1387 mFocusStartTime = System.currentTimeMillis(); 1388 mFocusState = FOCUSING; 1389 updateFocusIndicator(); 1390 mCameraDevice.autoFocus(mAutoFocusCallback); 1391 } 1392 } 1393 1394 private void cancelAutoFocus() { 1395 // User releases half-pressed focus key. 1396 if (mFocusState == FOCUSING || mFocusState == FOCUS_SUCCESS 1397 || mFocusState == FOCUS_FAIL) { 1398 Log.v(TAG, "Cancel autofocus."); 1399 mHeadUpDisplay.setEnabled(true); 1400 mCameraDevice.cancelAutoFocus(); 1401 } 1402 if (mFocusState != FOCUSING_SNAP_ON_FINISH) { 1403 clearFocusState(); 1404 } 1405 } 1406 1407 private void clearFocusState() { 1408 mFocusState = FOCUS_NOT_STARTED; 1409 updateFocusIndicator(); 1410 } 1411 1412 private void updateFocusIndicator() { 1413 if (mFocusRectangle == null) return; 1414 1415 if (mFocusState == FOCUSING || mFocusState == FOCUSING_SNAP_ON_FINISH) { 1416 mFocusRectangle.showStart(); 1417 } else if (mFocusState == FOCUS_SUCCESS) { 1418 mFocusRectangle.showSuccess(); 1419 } else if (mFocusState == FOCUS_FAIL) { 1420 mFocusRectangle.showFail(); 1421 } else { 1422 mFocusRectangle.clear(); 1423 } 1424 } 1425 1426 @Override 1427 public void onBackPressed() { 1428 if (!isCameraIdle()) { 1429 // ignore backs while we're taking a picture 1430 return; 1431 } else if (mHeadUpDisplay == null || !mHeadUpDisplay.collapse()) { 1432 super.onBackPressed(); 1433 } 1434 } 1435 1436 @Override 1437 public boolean onKeyDown(int keyCode, KeyEvent event) { 1438 switch (keyCode) { 1439 case KeyEvent.KEYCODE_FOCUS: 1440 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1441 doFocus(true); 1442 } 1443 return true; 1444 case KeyEvent.KEYCODE_CAMERA: 1445 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1446 doSnap(); 1447 } 1448 return true; 1449 case KeyEvent.KEYCODE_DPAD_CENTER: 1450 // If we get a dpad center event without any focused view, move 1451 // the focus to the shutter button and press it. 1452 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1453 // Start auto-focus immediately to reduce shutter lag. After 1454 // the shutter button gets the focus, doFocus() will be 1455 // called again but it is fine. 1456 if (mHeadUpDisplay.collapse()) return true; 1457 doFocus(true); 1458 if (mShutterButton.isInTouchMode()) { 1459 mShutterButton.requestFocusFromTouch(); 1460 } else { 1461 mShutterButton.requestFocus(); 1462 } 1463 mShutterButton.setPressed(true); 1464 } 1465 return true; 1466 } 1467 1468 return super.onKeyDown(keyCode, event); 1469 } 1470 1471 @Override 1472 public boolean onKeyUp(int keyCode, KeyEvent event) { 1473 switch (keyCode) { 1474 case KeyEvent.KEYCODE_FOCUS: 1475 if (mFirstTimeInitialized) { 1476 doFocus(false); 1477 } 1478 return true; 1479 } 1480 return super.onKeyUp(keyCode, event); 1481 } 1482 1483 private void doSnap() { 1484 if (mHeadUpDisplay.collapse()) return; 1485 1486 Log.v(TAG, "doSnap: mFocusState=" + mFocusState); 1487 // If the user has half-pressed the shutter and focus is completed, we 1488 // can take the photo right away. If the focus mode is infinity, we can 1489 // also take the photo. 1490 if (mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1491 || (mFocusState == FOCUS_SUCCESS 1492 || mFocusState == FOCUS_FAIL)) { 1493 mImageCapture.onSnap(); 1494 } else if (mFocusState == FOCUSING) { 1495 // Half pressing the shutter (i.e. the focus button event) will 1496 // already have requested AF for us, so just request capture on 1497 // focus here. 1498 mFocusState = FOCUSING_SNAP_ON_FINISH; 1499 } else if (mFocusState == FOCUS_NOT_STARTED) { 1500 // Focus key down event is dropped for some reasons. Just ignore. 1501 } 1502 } 1503 1504 private void doFocus(boolean pressed) { 1505 // Do the focus if the mode is not infinity. 1506 if (mHeadUpDisplay.collapse()) return; 1507 if (!mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY)) { 1508 if (pressed) { // Focus key down. 1509 autoFocus(); 1510 } else { // Focus key up. 1511 cancelAutoFocus(); 1512 } 1513 } 1514 } 1515 1516 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1517 // Make sure we have a surface in the holder before proceeding. 1518 if (holder.getSurface() == null) { 1519 Log.d(TAG, "holder.getSurface() == null"); 1520 return; 1521 } 1522 1523 // We need to save the holder for later use, even when the mCameraDevice 1524 // is null. This could happen if onResume() is invoked after this 1525 // function. 1526 mSurfaceHolder = holder; 1527 1528 // The mCameraDevice will be null if it fails to connect to the camera 1529 // hardware. In this case we will show a dialog and then finish the 1530 // activity, so it's OK to ignore it. 1531 if (mCameraDevice == null) return; 1532 1533 // Sometimes surfaceChanged is called after onPause or before onResume. 1534 // Ignore it. 1535 if (mPausing || isFinishing()) return; 1536 1537 if (mPreviewing && holder.isCreating()) { 1538 // Set preview display if the surface is being created and preview 1539 // was already started. That means preview display was set to null 1540 // and we need to set it now. 1541 setPreviewDisplay(holder); 1542 } else { 1543 // 1. Restart the preview if the size of surface was changed. The 1544 // framework may not support changing preview display on the fly. 1545 // 2. Start the preview now if surface was destroyed and preview 1546 // stopped. 1547 restartPreview(); 1548 } 1549 1550 // If first time initialization is not finished, send a message to do 1551 // it later. We want to finish surfaceChanged as soon as possible to let 1552 // user see preview first. 1553 if (!mFirstTimeInitialized) { 1554 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1555 } else { 1556 initializeSecondTime(); 1557 } 1558 } 1559 1560 public void surfaceCreated(SurfaceHolder holder) { 1561 } 1562 1563 public void surfaceDestroyed(SurfaceHolder holder) { 1564 stopPreview(); 1565 mSurfaceHolder = null; 1566 } 1567 1568 private void closeCamera() { 1569 if (mCameraDevice != null) { 1570 CameraHolder.instance().release(); 1571 mCameraDevice.setZoomChangeListener(null); 1572 mCameraDevice = null; 1573 mPreviewing = false; 1574 } 1575 } 1576 1577 private void ensureCameraDevice() throws CameraHardwareException { 1578 if (mCameraDevice == null) { 1579 mCameraDevice = CameraHolder.instance().open(); 1580 mInitialParams = mCameraDevice.getParameters(); 1581 } 1582 } 1583 1584 private void updateLastImage() { 1585 IImageList list = ImageManager.makeImageList( 1586 mContentResolver, 1587 dataLocation(), 1588 ImageManager.INCLUDE_IMAGES, 1589 ImageManager.SORT_ASCENDING, 1590 ImageManager.CAMERA_IMAGE_BUCKET_ID); 1591 int count = list.getCount(); 1592 if (count > 0) { 1593 IImage image = list.getImageAt(count - 1); 1594 Uri uri = image.fullSizeImageUri(); 1595 mThumbController.setData(uri, image.miniThumbBitmap()); 1596 } else { 1597 mThumbController.setData(null, null); 1598 } 1599 list.close(); 1600 } 1601 1602 private void showCameraErrorAndFinish() { 1603 Resources ress = getResources(); 1604 Util.showFatalErrorAndFinish(Camera.this, 1605 ress.getString(R.string.camera_error_title), 1606 ress.getString(R.string.cannot_connect_camera)); 1607 } 1608 1609 private void restartPreview() { 1610 try { 1611 startPreview(); 1612 } catch (CameraHardwareException e) { 1613 showCameraErrorAndFinish(); 1614 return; 1615 } 1616 } 1617 1618 private void setPreviewDisplay(SurfaceHolder holder) { 1619 try { 1620 mCameraDevice.setPreviewDisplay(holder); 1621 } catch (Throwable ex) { 1622 closeCamera(); 1623 throw new RuntimeException("setPreviewDisplay failed", ex); 1624 } 1625 } 1626 1627 private void startPreview() throws CameraHardwareException { 1628 if (mPausing || isFinishing()) return; 1629 1630 ensureCameraDevice(); 1631 1632 // If we're previewing already, stop the preview first (this will blank 1633 // the screen). 1634 if (mPreviewing) stopPreview(); 1635 1636 setPreviewDisplay(mSurfaceHolder); 1637 setCameraParameters(UPDATE_PARAM_ALL); 1638 1639 final long wallTimeStart = SystemClock.elapsedRealtime(); 1640 final long threadTimeStart = Debug.threadCpuTimeNanos(); 1641 1642 mCameraDevice.setErrorCallback(mErrorCallback); 1643 1644 try { 1645 Log.v(TAG, "startPreview"); 1646 mCameraDevice.startPreview(); 1647 } catch (Throwable ex) { 1648 closeCamera(); 1649 throw new RuntimeException("startPreview failed", ex); 1650 } 1651 mPreviewing = true; 1652 mZoomState = ZOOM_STOPPED; 1653 mStatus = IDLE; 1654 } 1655 1656 private void stopPreview() { 1657 if (mCameraDevice != null && mPreviewing) { 1658 Log.v(TAG, "stopPreview"); 1659 mCameraDevice.stopPreview(); 1660 } 1661 mPreviewing = false; 1662 // If auto focus was in progress, it would have been canceled. 1663 clearFocusState(); 1664 } 1665 1666 private Size getOptimalPreviewSize(List<Size> sizes, double targetRatio) { 1667 final double ASPECT_TOLERANCE = 0.05; 1668 if (sizes == null) return null; 1669 1670 Size optimalSize = null; 1671 double minDiff = Double.MAX_VALUE; 1672 1673 // Because of bugs of overlay and layout, we sometimes will try to 1674 // layout the viewfinder in the portrait orientation and thus get the 1675 // wrong size of mSurfaceView. When we change the preview size, the 1676 // new overlay will be created before the old one closed, which causes 1677 // an exception. For now, just get the screen size 1678 1679 Display display = getWindowManager().getDefaultDisplay(); 1680 int targetHeight = Math.min(display.getHeight(), display.getWidth()); 1681 1682 if (targetHeight <= 0) { 1683 // We don't know the size of SurefaceView, use screen height 1684 WindowManager windowManager = (WindowManager) 1685 getSystemService(Context.WINDOW_SERVICE); 1686 targetHeight = windowManager.getDefaultDisplay().getHeight(); 1687 } 1688 1689 // Try to find an size match aspect ratio and size 1690 for (Size size : sizes) { 1691 double ratio = (double) size.width / size.height; 1692 if (Math.abs(ratio - targetRatio) > ASPECT_TOLERANCE) continue; 1693 if (Math.abs(size.height - targetHeight) < minDiff) { 1694 optimalSize = size; 1695 minDiff = Math.abs(size.height - targetHeight); 1696 } 1697 } 1698 1699 // Cannot find the one match the aspect ratio, ignore the requirement 1700 if (optimalSize == null) { 1701 Log.v(TAG, "No preview size match the aspect ratio"); 1702 minDiff = Double.MAX_VALUE; 1703 for (Size size : sizes) { 1704 if (Math.abs(size.height - targetHeight) < minDiff) { 1705 optimalSize = size; 1706 minDiff = Math.abs(size.height - targetHeight); 1707 } 1708 } 1709 } 1710 return optimalSize; 1711 } 1712 1713 private static boolean isSupported(String value, List<String> supported) { 1714 return supported == null ? false : supported.indexOf(value) >= 0; 1715 } 1716 1717 private void updateCameraParametersInitialize() { 1718 // Reset preview frame rate to the maximum because it may be lowered by 1719 // video camera application. 1720 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1721 if (frameRates != null) { 1722 Integer max = Collections.max(frameRates); 1723 mParameters.setPreviewFrameRate(max); 1724 } 1725 1726 } 1727 1728 private void updateCameraParametersZoom() { 1729 // Set zoom. 1730 if (mParameters.isZoomSupported()) { 1731 mParameters.setZoom(mZoomValue); 1732 } 1733 } 1734 1735 private void updateCameraParametersPreference() { 1736 // Set picture size. 1737 String pictureSize = mPreferences.getString( 1738 CameraSettings.KEY_PICTURE_SIZE, null); 1739 if (pictureSize == null) { 1740 CameraSettings.initialCameraPictureSize(this, mParameters); 1741 } else { 1742 List<Size> supported = mParameters.getSupportedPictureSizes(); 1743 CameraSettings.setCameraPictureSize( 1744 pictureSize, supported, mParameters); 1745 } 1746 1747 // Set the preview frame aspect ratio according to the picture size. 1748 Size size = mParameters.getPictureSize(); 1749 PreviewFrameLayout frameLayout = 1750 (PreviewFrameLayout) findViewById(R.id.frame_layout); 1751 frameLayout.setAspectRatio((double) size.width / size.height); 1752 1753 // Set a preview size that is closest to the viewfinder height and has 1754 // the right aspect ratio. 1755 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1756 Size optimalSize = getOptimalPreviewSize( 1757 sizes, (double) size.width / size.height); 1758 if (optimalSize != null) { 1759 Size original = mParameters.getPreviewSize(); 1760 if (!original.equals(optimalSize)) { 1761 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1762 1763 // Zoom related settings will be changed for different preview 1764 // sizes, so set and read the parameters to get lastest values 1765 mCameraDevice.setParameters(mParameters); 1766 mParameters = mCameraDevice.getParameters(); 1767 } 1768 } 1769 1770 // Since change scene mode may change supported values, 1771 // Set scene mode first, 1772 mSceneMode = mPreferences.getString( 1773 CameraSettings.KEY_SCENE_MODE, 1774 getString(R.string.pref_camera_scenemode_default)); 1775 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 1776 if (!mParameters.getSceneMode().equals(mSceneMode)) { 1777 mParameters.setSceneMode(mSceneMode); 1778 mCameraDevice.setParameters(mParameters); 1779 1780 // Setting scene mode will change the settings of flash mode, 1781 // white balance, and focus mode. Here we read back the 1782 // parameters, so we can know those settings. 1783 mParameters = mCameraDevice.getParameters(); 1784 } 1785 } else { 1786 mSceneMode = mParameters.getSceneMode(); 1787 if (mSceneMode == null) { 1788 mSceneMode = Parameters.SCENE_MODE_AUTO; 1789 } 1790 } 1791 1792 // Set JPEG quality. 1793 String jpegQuality = mPreferences.getString( 1794 CameraSettings.KEY_JPEG_QUALITY, 1795 getString(R.string.pref_camera_jpegquality_default)); 1796 mParameters.setJpegQuality(JpegEncodingQualityMappings.getQualityNumber(jpegQuality)); 1797 1798 // For the following settings, we need to check if the settings are 1799 // still supported by latest driver, if not, ignore the settings. 1800 1801 // Set color effect parameter. 1802 String colorEffect = mPreferences.getString( 1803 CameraSettings.KEY_COLOR_EFFECT, 1804 getString(R.string.pref_camera_coloreffect_default)); 1805 if (isSupported(colorEffect, mParameters.getSupportedColorEffects())) { 1806 mParameters.setColorEffect(colorEffect); 1807 } 1808 1809 // Set exposure compensation 1810 String exposure = mPreferences.getString( 1811 CameraSettings.KEY_EXPOSURE, 1812 getString(R.string.pref_exposure_default)); 1813 try { 1814 int value = Integer.parseInt(exposure); 1815 int max = mParameters.getMaxExposureCompensation(); 1816 int min = mParameters.getMinExposureCompensation(); 1817 if (value >= min && value <= max) { 1818 mParameters.setExposureCompensation(value); 1819 } else { 1820 Log.w(TAG, "invalid exposure range: " + exposure); 1821 } 1822 } catch (NumberFormatException e) { 1823 Log.w(TAG, "invalid exposure: " + exposure); 1824 } 1825 1826 if (mGLRootView != null) updateSceneModeInHud(); 1827 1828 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1829 // Set flash mode. 1830 String flashMode = mPreferences.getString( 1831 CameraSettings.KEY_FLASH_MODE, 1832 getString(R.string.pref_camera_flashmode_default)); 1833 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 1834 if (isSupported(flashMode, supportedFlash)) { 1835 mParameters.setFlashMode(flashMode); 1836 } else { 1837 flashMode = mParameters.getFlashMode(); 1838 if (flashMode == null) { 1839 flashMode = getString( 1840 R.string.pref_camera_flashmode_no_flash); 1841 } 1842 } 1843 1844 // Set white balance parameter. 1845 String whiteBalance = mPreferences.getString( 1846 CameraSettings.KEY_WHITE_BALANCE, 1847 getString(R.string.pref_camera_whitebalance_default)); 1848 if (isSupported(whiteBalance, 1849 mParameters.getSupportedWhiteBalance())) { 1850 mParameters.setWhiteBalance(whiteBalance); 1851 } else { 1852 whiteBalance = mParameters.getWhiteBalance(); 1853 if (whiteBalance == null) { 1854 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 1855 } 1856 } 1857 1858 // Set focus mode. 1859 mFocusMode = mPreferences.getString( 1860 CameraSettings.KEY_FOCUS_MODE, 1861 getString(R.string.pref_camera_focusmode_default)); 1862 if (isSupported(mFocusMode, mParameters.getSupportedFocusModes())) { 1863 mParameters.setFocusMode(mFocusMode); 1864 } else { 1865 mFocusMode = mParameters.getFocusMode(); 1866 if (mFocusMode == null) { 1867 mFocusMode = Parameters.FOCUS_MODE_AUTO; 1868 } 1869 } 1870 } else { 1871 mFocusMode = mParameters.getFocusMode(); 1872 } 1873 } 1874 1875 // We separate the parameters into several subsets, so we can update only 1876 // the subsets actually need updating. The PREFERENCE set needs extra 1877 // locking because the preference can be changed from GLThread as well. 1878 private void setCameraParameters(int updateSet) { 1879 mParameters = mCameraDevice.getParameters(); 1880 1881 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 1882 updateCameraParametersInitialize(); 1883 } 1884 1885 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 1886 updateCameraParametersZoom(); 1887 } 1888 1889 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 1890 updateCameraParametersPreference(); 1891 } 1892 1893 mCameraDevice.setParameters(mParameters); 1894 } 1895 1896 // If the Camera is idle, update the parameters immediately, otherwise 1897 // accumulate them in mUpdateSet and update later. 1898 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 1899 mUpdateSet |= additionalUpdateSet; 1900 if (mCameraDevice == null) { 1901 // We will update all the parameters when we open the device, so 1902 // we don't need to do anything now. 1903 mUpdateSet = 0; 1904 return; 1905 } else if (isCameraIdle()) { 1906 setCameraParameters(mUpdateSet); 1907 mUpdateSet = 0; 1908 } else { 1909 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 1910 mHandler.sendEmptyMessageDelayed( 1911 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 1912 } 1913 } 1914 } 1915 1916 private void gotoGallery() { 1917 MenuHelper.gotoCameraImageGallery(this); 1918 } 1919 1920 private void viewLastImage() { 1921 if (mThumbController.isUriValid()) { 1922 Intent intent = new Intent(Util.REVIEW_ACTION, mThumbController.getUri()); 1923 try { 1924 startActivity(intent); 1925 } catch (ActivityNotFoundException ex) { 1926 Log.e(TAG, "review image fail", ex); 1927 } 1928 } else { 1929 Log.e(TAG, "Can't view last image."); 1930 } 1931 } 1932 1933 private void startReceivingLocationUpdates() { 1934 if (mLocationManager != null) { 1935 try { 1936 mLocationManager.requestLocationUpdates( 1937 LocationManager.NETWORK_PROVIDER, 1938 1000, 1939 0F, 1940 mLocationListeners[1]); 1941 } catch (java.lang.SecurityException ex) { 1942 Log.i(TAG, "fail to request location update, ignore", ex); 1943 } catch (IllegalArgumentException ex) { 1944 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1945 } 1946 try { 1947 mLocationManager.requestLocationUpdates( 1948 LocationManager.GPS_PROVIDER, 1949 1000, 1950 0F, 1951 mLocationListeners[0]); 1952 } catch (java.lang.SecurityException ex) { 1953 Log.i(TAG, "fail to request location update, ignore", ex); 1954 } catch (IllegalArgumentException ex) { 1955 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1956 } 1957 } 1958 } 1959 1960 private void stopReceivingLocationUpdates() { 1961 if (mLocationManager != null) { 1962 for (int i = 0; i < mLocationListeners.length; i++) { 1963 try { 1964 mLocationManager.removeUpdates(mLocationListeners[i]); 1965 } catch (Exception ex) { 1966 Log.i(TAG, "fail to remove location listners, ignore", ex); 1967 } 1968 } 1969 } 1970 } 1971 1972 private Location getCurrentLocation() { 1973 // go in best to worst order 1974 for (int i = 0; i < mLocationListeners.length; i++) { 1975 Location l = mLocationListeners[i].current(); 1976 if (l != null) return l; 1977 } 1978 return null; 1979 } 1980 1981 private boolean isCameraIdle() { 1982 return mStatus == IDLE && mFocusState == FOCUS_NOT_STARTED; 1983 } 1984 1985 private boolean isImageCaptureIntent() { 1986 String action = getIntent().getAction(); 1987 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 1988 } 1989 1990 private void setupCaptureParams() { 1991 Bundle myExtras = getIntent().getExtras(); 1992 if (myExtras != null) { 1993 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 1994 mCropValue = myExtras.getString("crop"); 1995 } 1996 } 1997 1998 private void showPostCaptureAlert() { 1999 if (mIsImageCaptureIntent) { 2000 findViewById(R.id.shutter_button).setVisibility(View.INVISIBLE); 2001 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2002 for (int id : pickIds) { 2003 View button = findViewById(id); 2004 ((View) button.getParent()).setVisibility(View.VISIBLE); 2005 } 2006 } 2007 } 2008 2009 private void hidePostCaptureAlert() { 2010 if (mIsImageCaptureIntent) { 2011 findViewById(R.id.shutter_button).setVisibility(View.VISIBLE); 2012 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2013 for (int id : pickIds) { 2014 View button = findViewById(id); 2015 ((View) button.getParent()).setVisibility(View.GONE); 2016 } 2017 } 2018 } 2019 2020 private int calculatePicturesRemaining() { 2021 mPicturesRemaining = MenuHelper.calculatePicturesRemaining(); 2022 return mPicturesRemaining; 2023 } 2024 2025 @Override 2026 public boolean onPrepareOptionsMenu(Menu menu) { 2027 super.onPrepareOptionsMenu(menu); 2028 // Only show the menu when camera is idle. 2029 for (int i = 0; i < menu.size(); i++) { 2030 menu.getItem(i).setVisible(isCameraIdle()); 2031 } 2032 2033 return true; 2034 } 2035 2036 @Override 2037 public boolean onCreateOptionsMenu(Menu menu) { 2038 super.onCreateOptionsMenu(menu); 2039 2040 if (mIsImageCaptureIntent) { 2041 // No options menu for attach mode. 2042 return false; 2043 } else { 2044 addBaseMenuItems(menu); 2045 } 2046 return true; 2047 } 2048 2049 private void addBaseMenuItems(Menu menu) { 2050 MenuHelper.addSwitchModeMenuItem(menu, true, new Runnable() { 2051 public void run() { 2052 switchToVideoMode(); 2053 } 2054 }); 2055 MenuItem gallery = menu.add(Menu.NONE, Menu.NONE, 2056 MenuHelper.POSITION_GOTO_GALLERY, 2057 R.string.camera_gallery_photos_text) 2058 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2059 public boolean onMenuItemClick(MenuItem item) { 2060 gotoGallery(); 2061 return true; 2062 } 2063 }); 2064 gallery.setIcon(android.R.drawable.ic_menu_gallery); 2065 mGalleryItems.add(gallery); 2066 } 2067 2068 private boolean switchToVideoMode() { 2069 if (isFinishing() || !isCameraIdle()) return false; 2070 MenuHelper.gotoVideoMode(this); 2071 mHandler.removeMessages(FIRST_TIME_INIT); 2072 finish(); 2073 return true; 2074 } 2075 2076 public boolean onSwitchChanged(Switcher source, boolean onOff) { 2077 if (onOff == SWITCH_VIDEO) { 2078 return switchToVideoMode(); 2079 } else { 2080 return true; 2081 } 2082 } 2083 2084 private void onSharedPreferenceChanged() { 2085 // ignore the events after "onPause()" 2086 if (mPausing) return; 2087 2088 boolean recordLocation; 2089 2090 recordLocation = RecordLocationPreference.get( 2091 mPreferences, getContentResolver()); 2092 mQuickCapture = getQuickCaptureSettings(); 2093 2094 if (mRecordLocation != recordLocation) { 2095 mRecordLocation = recordLocation; 2096 if (mRecordLocation) { 2097 startReceivingLocationUpdates(); 2098 } else { 2099 stopReceivingLocationUpdates(); 2100 } 2101 } 2102 2103 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 2104 } 2105 2106 private boolean getQuickCaptureSettings() { 2107 String value = mPreferences.getString( 2108 CameraSettings.KEY_QUICK_CAPTURE, 2109 getString(R.string.pref_camera_quickcapture_default)); 2110 return CameraSettings.QUICK_CAPTURE_ON.equals(value); 2111 } 2112 2113 @Override 2114 public void onUserInteraction() { 2115 super.onUserInteraction(); 2116 keepScreenOnAwhile(); 2117 } 2118 2119 private void resetScreenOn() { 2120 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2121 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2122 } 2123 2124 private void keepScreenOnAwhile() { 2125 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2126 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2127 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2128 } 2129 2130 private class MyHeadUpDisplayListener implements HeadUpDisplay.Listener { 2131 2132 public void onSharedPreferencesChanged() { 2133 Camera.this.onSharedPreferenceChanged(); 2134 } 2135 2136 public void onRestorePreferencesClicked() { 2137 Camera.this.onRestorePreferencesClicked(); 2138 } 2139 2140 public void onPopupWindowVisibilityChanged(int visibility) { 2141 } 2142 } 2143 2144 protected void onRestorePreferencesClicked() { 2145 if (mPausing) return; 2146 Runnable runnable = new Runnable() { 2147 public void run() { 2148 mHeadUpDisplay.restorePreferences(mParameters); 2149 } 2150 }; 2151 MenuHelper.confirmAction(this, 2152 getString(R.string.confirm_restore_title), 2153 getString(R.string.confirm_restore_message), 2154 runnable); 2155 } 2156} 2157 2158class FocusRectangle extends View { 2159 2160 @SuppressWarnings("unused") 2161 private static final String TAG = "FocusRectangle"; 2162 2163 public FocusRectangle(Context context, AttributeSet attrs) { 2164 super(context, attrs); 2165 } 2166 2167 private void setDrawable(int resid) { 2168 setBackgroundDrawable(getResources().getDrawable(resid)); 2169 } 2170 2171 public void showStart() { 2172 setDrawable(R.drawable.focus_focusing); 2173 } 2174 2175 public void showSuccess() { 2176 setDrawable(R.drawable.focus_focused); 2177 } 2178 2179 public void showFail() { 2180 setDrawable(R.drawable.focus_focus_failed); 2181 } 2182 2183 public void clear() { 2184 setBackgroundDrawable(null); 2185 } 2186} 2187 2188/* 2189 * Provide a mapping for Jpeg encoding quality levels 2190 * from String representation to numeric representation. 2191 */ 2192class JpegEncodingQualityMappings { 2193 private static final String TAG = "JpegEncodingQualityMappings"; 2194 private static final int DEFAULT_QUALITY = 85; 2195 private static HashMap<String, Integer> mHashMap = 2196 new HashMap<String, Integer>(); 2197 2198 static { 2199 mHashMap.put("normal", CameraProfile.QUALITY_LOW); 2200 mHashMap.put("fine", CameraProfile.QUALITY_MEDIUM); 2201 mHashMap.put("superfine", CameraProfile.QUALITY_HIGH); 2202 } 2203 2204 // Retrieve and return the Jpeg encoding quality number 2205 // for the given quality level. 2206 public static int getQualityNumber(String jpegQuality) { 2207 Integer quality = mHashMap.get(jpegQuality); 2208 if (quality == null) { 2209 Log.w(TAG, "Unknown Jpeg quality: " + jpegQuality); 2210 return DEFAULT_QUALITY; 2211 } 2212 return CameraProfile.getJpegEncodingQualityParameter(quality.intValue()); 2213 } 2214} 2215