Camera.java revision 0ab73a87e749477080c566cb9612cd3f25dc7574
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 mHeadUpDisplay.setOrientation(mLastOrientation); 318 } 319 } 320 }; 321 mOrientationListener.enable(); 322 323 // Initialize location sevice. 324 mLocationManager = (LocationManager) 325 getSystemService(Context.LOCATION_SERVICE); 326 mRecordLocation = RecordLocationPreference.get( 327 mPreferences, getContentResolver()); 328 if (mRecordLocation) startReceivingLocationUpdates(); 329 330 keepMediaProviderInstance(); 331 checkStorage(); 332 333 // Initialize last picture button. 334 mContentResolver = getContentResolver(); 335 if (!mIsImageCaptureIntent) { 336 findViewById(R.id.camera_switch).setOnClickListener(this); 337 mLastPictureButton = 338 (ImageView) findViewById(R.id.review_thumbnail); 339 mLastPictureButton.setOnClickListener(this); 340 mThumbController = new ThumbnailController( 341 getResources(), mLastPictureButton, mContentResolver); 342 mThumbController.loadData(ImageManager.getLastImageThumbPath()); 343 // Update last image thumbnail. 344 updateThumbnailButton(); 345 } 346 347 // Initialize shutter button. 348 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 349 mShutterButton.setOnShutterButtonListener(this); 350 mShutterButton.setVisibility(View.VISIBLE); 351 352 mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); 353 updateFocusIndicator(); 354 355 initializeScreenBrightness(); 356 installIntentFilter(); 357 initializeFocusTone(); 358 initializeZoom(); 359 initializeHeadUpDisplay(); 360 mFirstTimeInitialized = true; 361 changeHeadUpDisplayState(); 362 addIdleHandler(); 363 } 364 365 private void addIdleHandler() { 366 MessageQueue queue = Looper.myQueue(); 367 queue.addIdleHandler(new MessageQueue.IdleHandler() { 368 public boolean queueIdle() { 369 ImageManager.ensureOSXCompatibleFolder(); 370 return false; 371 } 372 }); 373 } 374 375 private void updateThumbnailButton() { 376 // Update last image if URI is invalid and the storage is ready. 377 if (!mThumbController.isUriValid() && mPicturesRemaining >= 0) { 378 updateLastImage(); 379 } 380 mThumbController.updateDisplayIfNeeded(); 381 } 382 383 // If the activity is paused and resumed, this method will be called in 384 // onResume. 385 private void initializeSecondTime() { 386 // Start orientation listener as soon as possible because it takes 387 // some time to get first orientation. 388 mOrientationListener.enable(); 389 390 // Start location update if needed. 391 mRecordLocation = RecordLocationPreference.get( 392 mPreferences, getContentResolver()); 393 if (mRecordLocation) startReceivingLocationUpdates(); 394 395 installIntentFilter(); 396 initializeFocusTone(); 397 initializeZoom(); 398 changeHeadUpDisplayState(); 399 400 keepMediaProviderInstance(); 401 checkStorage(); 402 403 if (!mIsImageCaptureIntent) { 404 updateThumbnailButton(); 405 } 406 } 407 408 private void initializeZoom() { 409 if (!mParameters.isZoomSupported()) return; 410 411 mZoomMax = mParameters.getMaxZoom(); 412 mSmoothZoomSupported = mParameters.isSmoothZoomSupported(); 413 mGestureDetector = new GestureDetector(this, new ZoomGestureListener()); 414 415 mCameraDevice.setZoomChangeListener(mZoomListener); 416 } 417 418 private void onZoomValueChanged(int index) { 419 if (mSmoothZoomSupported) { 420 if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { 421 mTargetZoomValue = index; 422 if (mZoomState == ZOOM_START) { 423 mZoomState = ZOOM_STOPPING; 424 mCameraDevice.stopSmoothZoom(); 425 } 426 } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { 427 mTargetZoomValue = index; 428 mCameraDevice.startSmoothZoom(index); 429 mZoomState = ZOOM_START; 430 } 431 } else { 432 mZoomValue = index; 433 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 434 } 435 } 436 437 private float[] getZoomRatios() { 438 List<Integer> zoomRatios = mParameters.getZoomRatios(); 439 if (zoomRatios != null) { 440 float result[] = new float[zoomRatios.size()]; 441 for (int i = 0, n = result.length; i < n; ++i) { 442 result[i] = (float) zoomRatios.get(i) / 100f; 443 } 444 return result; 445 } else { 446 throw new IllegalStateException("cannot get zoom ratios"); 447 } 448 } 449 450 private class ZoomGestureListener extends 451 GestureDetector.SimpleOnGestureListener { 452 453 @Override 454 public boolean onDoubleTap(MotionEvent e) { 455 // Perform zoom only when preview is started and snapshot is not in 456 // progress. 457 if (mPausing || !isCameraIdle() || !mPreviewing 458 || mZoomState != ZOOM_STOPPED) { 459 return false; 460 } 461 462 if (mZoomValue < mZoomMax) { 463 // Zoom in to the maximum. 464 mZoomValue = mZoomMax; 465 } else { 466 mZoomValue = 0; 467 } 468 469 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 470 471 mHeadUpDisplay.setZoomIndex(mZoomValue); 472 return true; 473 } 474 } 475 476 @Override 477 public boolean dispatchTouchEvent(MotionEvent m) { 478 if (!super.dispatchTouchEvent(m) && mGestureDetector != null) { 479 return mGestureDetector.onTouchEvent(m); 480 } 481 return true; 482 } 483 484 LocationListener [] mLocationListeners = new LocationListener[] { 485 new LocationListener(LocationManager.GPS_PROVIDER), 486 new LocationListener(LocationManager.NETWORK_PROVIDER) 487 }; 488 489 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 490 @Override 491 public void onReceive(Context context, Intent intent) { 492 String action = intent.getAction(); 493 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 494 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 495 || action.equals(Intent.ACTION_MEDIA_CHECKING)) { 496 checkStorage(); 497 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 498 checkStorage(); 499 if (!mIsImageCaptureIntent) { 500 updateThumbnailButton(); 501 } 502 } 503 } 504 }; 505 506 private class LocationListener 507 implements android.location.LocationListener { 508 Location mLastLocation; 509 boolean mValid = false; 510 String mProvider; 511 512 public LocationListener(String provider) { 513 mProvider = provider; 514 mLastLocation = new Location(mProvider); 515 } 516 517 public void onLocationChanged(Location newLocation) { 518 if (newLocation.getLatitude() == 0.0 519 && newLocation.getLongitude() == 0.0) { 520 // Hack to filter out 0.0,0.0 locations 521 return; 522 } 523 // If GPS is available before start camera, we won't get status 524 // update so update GPS indicator when we receive data. 525 if (mRecordLocation 526 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 527 if (mHeadUpDisplay != null) { 528 mHeadUpDisplay.setGpsHasSignal(true); 529 } 530 } 531 mLastLocation.set(newLocation); 532 mValid = true; 533 } 534 535 public void onProviderEnabled(String provider) { 536 } 537 538 public void onProviderDisabled(String provider) { 539 mValid = false; 540 } 541 542 public void onStatusChanged( 543 String provider, int status, Bundle extras) { 544 switch(status) { 545 case LocationProvider.OUT_OF_SERVICE: 546 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 547 mValid = false; 548 if (mRecordLocation && 549 LocationManager.GPS_PROVIDER.equals(provider)) { 550 if (mHeadUpDisplay != null) { 551 mHeadUpDisplay.setGpsHasSignal(false); 552 } 553 } 554 break; 555 } 556 } 557 } 558 559 public Location current() { 560 return mValid ? mLastLocation : null; 561 } 562 } 563 564 private final class ShutterCallback 565 implements android.hardware.Camera.ShutterCallback { 566 public void onShutter() { 567 mShutterCallbackTime = System.currentTimeMillis(); 568 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 569 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 570 clearFocusState(); 571 } 572 } 573 574 private final class PostViewPictureCallback implements PictureCallback { 575 public void onPictureTaken( 576 byte [] data, android.hardware.Camera camera) { 577 mPostViewPictureCallbackTime = System.currentTimeMillis(); 578 Log.v(TAG, "mShutterToPostViewCallbackTime = " 579 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 580 + "ms"); 581 } 582 } 583 584 private final class RawPictureCallback implements PictureCallback { 585 public void onPictureTaken( 586 byte [] rawData, android.hardware.Camera camera) { 587 mRawPictureCallbackTime = System.currentTimeMillis(); 588 Log.v(TAG, "mShutterToRawCallbackTime = " 589 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 590 } 591 } 592 593 private final class JpegPictureCallback implements PictureCallback { 594 Location mLocation; 595 596 public JpegPictureCallback(Location loc) { 597 mLocation = loc; 598 } 599 600 public void onPictureTaken( 601 final byte [] jpegData, final android.hardware.Camera camera) { 602 if (mPausing) { 603 return; 604 } 605 606 mJpegPictureCallbackTime = System.currentTimeMillis(); 607 // If postview callback has arrived, the captured image is displayed 608 // in postview callback. If not, the captured image is displayed in 609 // raw picture callback. 610 if (mPostViewPictureCallbackTime != 0) { 611 mShutterToPictureDisplayedTime = 612 mPostViewPictureCallbackTime - mShutterCallbackTime; 613 mPictureDisplayedToJpegCallbackTime = 614 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 615 } else { 616 mShutterToPictureDisplayedTime = 617 mRawPictureCallbackTime - mShutterCallbackTime; 618 mPictureDisplayedToJpegCallbackTime = 619 mJpegPictureCallbackTime - mRawPictureCallbackTime; 620 } 621 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 622 + mPictureDisplayedToJpegCallbackTime + "ms"); 623 mHeadUpDisplay.setEnabled(true); 624 625 if (!mIsImageCaptureIntent) { 626 // We want to show the taken picture for a while, so we wait 627 // for at least 1.2 second before restarting the preview. 628 long delay = 1200 - mPictureDisplayedToJpegCallbackTime; 629 if (delay < 0 || mQuickCapture) { 630 restartPreview(); 631 } else { 632 mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay); 633 } 634 } 635 mImageCapture.storeImage(jpegData, camera, mLocation); 636 637 // Calculate this in advance of each shot so we don't add to shutter 638 // latency. It's true that someone else could write to the SD card in 639 // the mean time and fill it, but that could have happened between the 640 // shutter press and saving the JPEG too. 641 calculatePicturesRemaining(); 642 643 if (mPicturesRemaining < 1) { 644 updateStorageHint(mPicturesRemaining); 645 } 646 647 if (!mHandler.hasMessages(RESTART_PREVIEW)) { 648 long now = System.currentTimeMillis(); 649 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 650 Log.v(TAG, "mJpegCallbackFinishTime = " 651 + mJpegCallbackFinishTime + "ms"); 652 mJpegPictureCallbackTime = 0; 653 } 654 } 655 } 656 657 private final class AutoFocusCallback 658 implements android.hardware.Camera.AutoFocusCallback { 659 public void onAutoFocus( 660 boolean focused, android.hardware.Camera camera) { 661 mFocusCallbackTime = System.currentTimeMillis(); 662 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 663 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 664 if (mFocusState == FOCUSING_SNAP_ON_FINISH) { 665 // Take the picture no matter focus succeeds or fails. No need 666 // to play the AF sound if we're about to play the shutter 667 // sound. 668 if (focused) { 669 mFocusState = FOCUS_SUCCESS; 670 } else { 671 mFocusState = FOCUS_FAIL; 672 } 673 mImageCapture.onSnap(); 674 } else if (mFocusState == FOCUSING) { 675 // User is half-pressing the focus key. Play the focus tone. 676 // Do not take the picture now. 677 ToneGenerator tg = mFocusToneGenerator; 678 if (tg != null) { 679 tg.startTone(ToneGenerator.TONE_PROP_BEEP2); 680 } 681 if (focused) { 682 mFocusState = FOCUS_SUCCESS; 683 } else { 684 mFocusState = FOCUS_FAIL; 685 } 686 } else if (mFocusState == FOCUS_NOT_STARTED) { 687 // User has released the focus key before focus completes. 688 // Do nothing. 689 } 690 updateFocusIndicator(); 691 } 692 } 693 694 private static final class ErrorCallback 695 implements android.hardware.Camera.ErrorCallback { 696 public void onError(int error, android.hardware.Camera camera) { 697 if (error == android.hardware.Camera.CAMERA_ERROR_SERVER_DIED) { 698 mMediaServerDied = true; 699 Log.v(TAG, "media server died"); 700 } 701 } 702 } 703 704 private final class ZoomListener 705 implements android.hardware.Camera.OnZoomChangeListener { 706 public void onZoomChange( 707 int value, boolean stopped, android.hardware.Camera camera) { 708 Log.v(TAG, "Zoom changed: value=" + value + ". stopped="+ stopped); 709 mZoomValue = value; 710 // Keep mParameters up to date. We do not getParameter again in 711 // takePicture. If we do not do this, wrong zoom value will be set. 712 mParameters.setZoom(value); 713 // We only care if the zoom is stopped. mZooming is set to true when 714 // we start smooth zoom. 715 if (stopped && mZoomState != ZOOM_STOPPED) { 716 if (value != mTargetZoomValue) { 717 mCameraDevice.startSmoothZoom(mTargetZoomValue); 718 mZoomState = ZOOM_START; 719 } else { 720 mZoomState = ZOOM_STOPPED; 721 } 722 } 723 } 724 } 725 726 private class ImageCapture { 727 728 private Uri mLastContentUri; 729 730 byte[] mCaptureOnlyData; 731 732 // Returns the rotation degree in the jpeg header. 733 private int storeImage(byte[] data, Location loc) { 734 try { 735 long dateTaken = System.currentTimeMillis(); 736 String title = createName(dateTaken); 737 String filename = title + ".jpg"; 738 int[] degree = new int[1]; 739 mLastContentUri = ImageManager.addImage( 740 mContentResolver, 741 title, 742 dateTaken, 743 loc, // location from gps/network 744 ImageManager.CAMERA_IMAGE_BUCKET_NAME, filename, 745 null, data, 746 degree); 747 return degree[0]; 748 } catch (Exception ex) { 749 Log.e(TAG, "Exception while compressing image.", ex); 750 return 0; 751 } 752 } 753 754 public void storeImage(final byte[] data, 755 android.hardware.Camera camera, Location loc) { 756 if (!mIsImageCaptureIntent) { 757 int degree = storeImage(data, loc); 758 sendBroadcast(new Intent( 759 "com.android.camera.NEW_PICTURE", mLastContentUri)); 760 setLastPictureThumb(data, degree, 761 mImageCapture.getLastCaptureUri()); 762 mThumbController.updateDisplayIfNeeded(); 763 } else { 764 mCaptureOnlyData = data; 765 showPostCaptureAlert(); 766 } 767 } 768 769 /** 770 * Initiate the capture of an image. 771 */ 772 public void initiate() { 773 if (mCameraDevice == null) { 774 return; 775 } 776 777 capture(); 778 } 779 780 public Uri getLastCaptureUri() { 781 return mLastContentUri; 782 } 783 784 public byte[] getLastCaptureData() { 785 return mCaptureOnlyData; 786 } 787 788 private void capture() { 789 mCaptureOnlyData = null; 790 791 // Set rotation. 792 mParameters.setRotation(mLastOrientation); 793 794 // Clear previous GPS location from the parameters. 795 mParameters.removeGpsData(); 796 797 // We always encode GpsTimeStamp 798 mParameters.setGpsTimestamp(System.currentTimeMillis() / 1000); 799 800 // Set GPS location. 801 Location loc = mRecordLocation ? getCurrentLocation() : null; 802 if (loc != null) { 803 double lat = loc.getLatitude(); 804 double lon = loc.getLongitude(); 805 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 806 807 if (hasLatLon) { 808 mParameters.setGpsLatitude(lat); 809 mParameters.setGpsLongitude(lon); 810 mParameters.setGpsProcessingMethod(loc.getProvider().toUpperCase()); 811 if (loc.hasAltitude()) { 812 mParameters.setGpsAltitude(loc.getAltitude()); 813 } else { 814 // for NETWORK_PROVIDER location provider, we may have 815 // no altitude information, but the driver needs it, so 816 // we fake one. 817 mParameters.setGpsAltitude(0); 818 } 819 if (loc.getTime() != 0) { 820 // Location.getTime() is UTC in milliseconds. 821 // gps-timestamp is UTC in seconds. 822 long utcTimeSeconds = loc.getTime() / 1000; 823 mParameters.setGpsTimestamp(utcTimeSeconds); 824 } 825 } else { 826 loc = null; 827 } 828 } 829 830 mCameraDevice.setParameters(mParameters); 831 832 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 833 mPostViewPictureCallback, new JpegPictureCallback(loc)); 834 mPreviewing = false; 835 } 836 837 public void onSnap() { 838 // If we are already in the middle of taking a snapshot then ignore. 839 if (mPausing || mStatus == SNAPSHOT_IN_PROGRESS) { 840 return; 841 } 842 mCaptureStartTime = System.currentTimeMillis(); 843 mPostViewPictureCallbackTime = 0; 844 mHeadUpDisplay.setEnabled(false); 845 mStatus = SNAPSHOT_IN_PROGRESS; 846 847 mImageCapture.initiate(); 848 } 849 850 private void clearLastData() { 851 mCaptureOnlyData = null; 852 } 853 } 854 855 private boolean saveDataToFile(String filePath, byte[] data) { 856 FileOutputStream f = null; 857 try { 858 f = new FileOutputStream(filePath); 859 f.write(data); 860 } catch (IOException e) { 861 return false; 862 } finally { 863 MenuHelper.closeSilently(f); 864 } 865 return true; 866 } 867 868 private void setLastPictureThumb(byte[] data, int degree, Uri uri) { 869 BitmapFactory.Options options = new BitmapFactory.Options(); 870 options.inSampleSize = 16; 871 Bitmap lastPictureThumb = 872 BitmapFactory.decodeByteArray(data, 0, data.length, options); 873 lastPictureThumb = Util.rotate(lastPictureThumb, degree); 874 mThumbController.setData(uri, lastPictureThumb); 875 } 876 877 private String createName(long dateTaken) { 878 Date date = new Date(dateTaken); 879 SimpleDateFormat dateFormat = new SimpleDateFormat( 880 getString(R.string.image_file_name_format)); 881 882 return dateFormat.format(date); 883 } 884 885 @Override 886 public void onCreate(Bundle icicle) { 887 super.onCreate(icicle); 888 889 setContentView(R.layout.camera); 890 mSurfaceView = (SurfaceView) findViewById(R.id.camera_preview); 891 892 mPreferences = PreferenceManager.getDefaultSharedPreferences(this); 893 CameraSettings.upgradePreferences(mPreferences); 894 895 mQuickCapture = getQuickCaptureSettings(); 896 897 // comment out -- unused now. 898 //mQuickCapture = getQuickCaptureSettings(); 899 900 // we need to reset exposure for the preview 901 resetExposureCompensation(); 902 /* 903 * To reduce startup time, we start the preview in another thread. 904 * We make sure the preview is started at the end of onCreate. 905 */ 906 Thread startPreviewThread = new Thread(new Runnable() { 907 public void run() { 908 try { 909 mStartPreviewFail = false; 910 startPreview(); 911 } catch (CameraHardwareException e) { 912 // In eng build, we throw the exception so that test tool 913 // can detect it and report it 914 if ("eng".equals(Build.TYPE)) { 915 throw new RuntimeException(e); 916 } 917 mStartPreviewFail = true; 918 } 919 } 920 }); 921 startPreviewThread.start(); 922 923 // don't set mSurfaceHolder here. We have it set ONLY within 924 // surfaceChanged / surfaceDestroyed, other parts of the code 925 // assume that when it is set, the surface is also set. 926 SurfaceHolder holder = mSurfaceView.getHolder(); 927 holder.addCallback(this); 928 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 929 930 mIsImageCaptureIntent = isImageCaptureIntent(); 931 if (mIsImageCaptureIntent) { 932 setupCaptureParams(); 933 } 934 935 LayoutInflater inflater = getLayoutInflater(); 936 937 ViewGroup rootView = (ViewGroup) findViewById(R.id.camera); 938 if (mIsImageCaptureIntent) { 939 View controlBar = inflater.inflate( 940 R.layout.attach_camera_control, rootView); 941 controlBar.findViewById(R.id.btn_cancel).setOnClickListener(this); 942 controlBar.findViewById(R.id.btn_retake).setOnClickListener(this); 943 controlBar.findViewById(R.id.btn_done).setOnClickListener(this); 944 } else { 945 inflater.inflate(R.layout.camera_control, rootView); 946 mSwitcher = ((Switcher) findViewById(R.id.camera_switch)); 947 mSwitcher.setOnSwitchListener(this); 948 mSwitcher.addTouchView(findViewById(R.id.camera_switch_set)); 949 } 950 951 // Make sure preview is started. 952 try { 953 startPreviewThread.join(); 954 if (mStartPreviewFail) { 955 showCameraErrorAndFinish(); 956 return; 957 } 958 } catch (InterruptedException ex) { 959 // ignore 960 } 961 } 962 963 private void changeHeadUpDisplayState() { 964 // If the camera resumes behind the lock screen, the orientation 965 // will be portrait. That causes OOM when we try to allocation GPU 966 // memory for the GLSurfaceView again when the orientation changes. So, 967 // we delayed initialization of HeadUpDisplay until the orientation 968 // becomes landscape. 969 Configuration config = getResources().getConfiguration(); 970 if (config.orientation == Configuration.ORIENTATION_LANDSCAPE 971 && !mPausing && mFirstTimeInitialized) { 972 if (mGLRootView == null) attachHeadUpDisplay(); 973 } else if (mGLRootView != null) { 974 detachHeadUpDisplay(); 975 } 976 } 977 978 private void overrideHudSettings(final String flashMode, 979 final String whiteBalance, final String focusMode) { 980 mHeadUpDisplay.overrideSettings( 981 CameraSettings.KEY_FLASH_MODE, flashMode, 982 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 983 CameraSettings.KEY_FOCUS_MODE, focusMode); 984 } 985 986 private void updateSceneModeInHud() { 987 // If scene mode is set, we cannot set flash mode, white balance, and 988 // focus mode, instead, we read it from driver 989 if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 990 overrideHudSettings(mParameters.getFlashMode(), 991 mParameters.getWhiteBalance(), mParameters.getFocusMode()); 992 } else { 993 overrideHudSettings(null, null, null); 994 } 995 } 996 997 private void initializeHeadUpDisplay() { 998 mHeadUpDisplay = new CameraHeadUpDisplay(this); 999 CameraSettings settings = new CameraSettings(this, mInitialParams); 1000 mHeadUpDisplay.initialize(this, 1001 settings.getPreferenceGroup(R.xml.camera_preferences)); 1002 mHeadUpDisplay.setListener(new MyHeadUpDisplayListener()); 1003 } 1004 1005 private void attachHeadUpDisplay() { 1006 mHeadUpDisplay.setOrientation(mLastOrientation); 1007 if (mParameters.isZoomSupported()) { 1008 mHeadUpDisplay.setZoomRatios(getZoomRatios()); 1009 mHeadUpDisplay.setZoomIndex(mZoomValue); 1010 mHeadUpDisplay.setZoomListener(new ZoomControllerListener() { 1011 public void onZoomChanged( 1012 int index, float ratio, boolean isMoving) { 1013 onZoomValueChanged(index); 1014 } 1015 }); 1016 } 1017 FrameLayout frame = (FrameLayout) findViewById(R.id.frame); 1018 mGLRootView = new GLRootView(this); 1019 mGLRootView.setContentPane(mHeadUpDisplay); 1020 frame.addView(mGLRootView); 1021 1022 updateSceneModeInHud(); 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 private void setOrientationIndicator(int degree) { 1033 ((RotateImageView) findViewById( 1034 R.id.review_thumbnail)).setDegree(degree); 1035 ((RotateImageView) findViewById( 1036 R.id.camera_switch_icon)).setDegree(degree); 1037 ((RotateImageView) findViewById( 1038 R.id.video_switch_icon)).setDegree(degree); 1039 } 1040 1041 @Override 1042 public void onStart() { 1043 super.onStart(); 1044 if (!mIsImageCaptureIntent) { 1045 mSwitcher.setSwitch(SWITCH_CAMERA); 1046 } 1047 } 1048 1049 @Override 1050 public void onStop() { 1051 super.onStop(); 1052 if (mMediaProviderClient != null) { 1053 mMediaProviderClient.release(); 1054 mMediaProviderClient = null; 1055 } 1056 } 1057 1058 private void checkStorage() { 1059 calculatePicturesRemaining(); 1060 updateStorageHint(mPicturesRemaining); 1061 } 1062 1063 public void onClick(View v) { 1064 switch (v.getId()) { 1065 case R.id.btn_retake: 1066 hidePostCaptureAlert(); 1067 restartPreview(); 1068 break; 1069 case R.id.review_thumbnail: 1070 if (isCameraIdle()) { 1071 viewLastImage(); 1072 } 1073 break; 1074 case R.id.btn_done: 1075 doAttach(); 1076 break; 1077 case R.id.btn_cancel: 1078 doCancel(); 1079 } 1080 } 1081 1082 private Bitmap createCaptureBitmap(byte[] data) { 1083 // This is really stupid...we just want to read the orientation in 1084 // the jpeg header. 1085 String filepath = ImageManager.getTempJpegPath(); 1086 int degree = 0; 1087 if (saveDataToFile(filepath, data)) { 1088 degree = ImageManager.getExifOrientation(filepath); 1089 new File(filepath).delete(); 1090 } 1091 1092 // Limit to 50k pixels so we can return it in the intent. 1093 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1094 bitmap = Util.rotate(bitmap, degree); 1095 return bitmap; 1096 } 1097 1098 private void doAttach() { 1099 if (mPausing) { 1100 return; 1101 } 1102 1103 byte[] data = mImageCapture.getLastCaptureData(); 1104 1105 if (mCropValue == null) { 1106 // First handle the no crop case -- just return the value. If the 1107 // caller specifies a "save uri" then write the data to it's 1108 // stream. Otherwise, pass back a scaled down version of the bitmap 1109 // directly in the extras. 1110 if (mSaveUri != null) { 1111 OutputStream outputStream = null; 1112 try { 1113 outputStream = mContentResolver.openOutputStream(mSaveUri); 1114 outputStream.write(data); 1115 outputStream.close(); 1116 1117 setResult(RESULT_OK); 1118 finish(); 1119 } catch (IOException ex) { 1120 // ignore exception 1121 } finally { 1122 Util.closeSilently(outputStream); 1123 } 1124 } else { 1125 Bitmap bitmap = createCaptureBitmap(data); 1126 setResult(RESULT_OK, 1127 new Intent("inline-data").putExtra("data", bitmap)); 1128 finish(); 1129 } 1130 } else { 1131 // Save the image to a temp file and invoke the cropper 1132 Uri tempUri = null; 1133 FileOutputStream tempStream = null; 1134 try { 1135 File path = getFileStreamPath(sTempCropFilename); 1136 path.delete(); 1137 tempStream = openFileOutput(sTempCropFilename, 0); 1138 tempStream.write(data); 1139 tempStream.close(); 1140 tempUri = Uri.fromFile(path); 1141 } catch (FileNotFoundException ex) { 1142 setResult(Activity.RESULT_CANCELED); 1143 finish(); 1144 return; 1145 } catch (IOException ex) { 1146 setResult(Activity.RESULT_CANCELED); 1147 finish(); 1148 return; 1149 } finally { 1150 Util.closeSilently(tempStream); 1151 } 1152 1153 Bundle newExtras = new Bundle(); 1154 if (mCropValue.equals("circle")) { 1155 newExtras.putString("circleCrop", "true"); 1156 } 1157 if (mSaveUri != null) { 1158 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1159 } else { 1160 newExtras.putBoolean("return-data", true); 1161 } 1162 1163 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1164 1165 cropIntent.setData(tempUri); 1166 cropIntent.putExtras(newExtras); 1167 1168 startActivityForResult(cropIntent, CROP_MSG); 1169 } 1170 } 1171 1172 private void doCancel() { 1173 setResult(RESULT_CANCELED, new Intent()); 1174 finish(); 1175 } 1176 1177 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1178 if (mPausing) { 1179 return; 1180 } 1181 switch (button.getId()) { 1182 case R.id.shutter_button: 1183 doFocus(pressed); 1184 break; 1185 } 1186 } 1187 1188 public void onShutterButtonClick(ShutterButton button) { 1189 if (mPausing) { 1190 return; 1191 } 1192 switch (button.getId()) { 1193 case R.id.shutter_button: 1194 doSnap(); 1195 break; 1196 } 1197 } 1198 1199 private OnScreenHint mStorageHint; 1200 1201 private void updateStorageHint(int remaining) { 1202 String noStorageText = null; 1203 1204 if (remaining == MenuHelper.NO_STORAGE_ERROR) { 1205 String state = Environment.getExternalStorageState(); 1206 if (state == Environment.MEDIA_CHECKING) { 1207 noStorageText = getString(R.string.preparing_sd); 1208 } else { 1209 noStorageText = getString(R.string.no_storage); 1210 } 1211 } else if (remaining == MenuHelper.CANNOT_STAT_ERROR) { 1212 noStorageText = getString(R.string.access_sd_fail); 1213 } else if (remaining < 1) { 1214 noStorageText = getString(R.string.not_enough_space); 1215 } 1216 1217 if (noStorageText != null) { 1218 if (mStorageHint == null) { 1219 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1220 } else { 1221 mStorageHint.setText(noStorageText); 1222 } 1223 mStorageHint.show(); 1224 } else if (mStorageHint != null) { 1225 mStorageHint.cancel(); 1226 mStorageHint = null; 1227 } 1228 } 1229 1230 private void installIntentFilter() { 1231 // install an intent filter to receive SD card related events. 1232 IntentFilter intentFilter = 1233 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1234 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1235 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1236 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1237 intentFilter.addDataScheme("file"); 1238 registerReceiver(mReceiver, intentFilter); 1239 mDidRegister = true; 1240 } 1241 1242 private void initializeFocusTone() { 1243 // Initialize focus tone generator. 1244 try { 1245 mFocusToneGenerator = new ToneGenerator( 1246 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1247 } catch (Throwable ex) { 1248 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1249 mFocusToneGenerator = null; 1250 } 1251 } 1252 1253 private void initializeScreenBrightness() { 1254 Window win = getWindow(); 1255 // Overright the brightness settings if it is automatic 1256 int mode = Settings.System.getInt( 1257 getContentResolver(), 1258 Settings.System.SCREEN_BRIGHTNESS_MODE, 1259 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); 1260 if (mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC) { 1261 WindowManager.LayoutParams winParams = win.getAttributes(); 1262 winParams.screenBrightness = DEFAULT_CAMERA_BRIGHTNESS; 1263 win.setAttributes(winParams); 1264 } 1265 } 1266 1267 @Override 1268 protected void onResume() { 1269 super.onResume(); 1270 1271 mPausing = false; 1272 mJpegPictureCallbackTime = 0; 1273 mZoomValue = 0; 1274 mImageCapture = new ImageCapture(); 1275 1276 // Start the preview if it is not started. 1277 if (!mPreviewing && !mStartPreviewFail) { 1278 resetExposureCompensation(); 1279 try { 1280 startPreview(); 1281 } catch (CameraHardwareException e) { 1282 showCameraErrorAndFinish(); 1283 return; 1284 } 1285 } 1286 1287 if (mSurfaceHolder != null) { 1288 // If first time initialization is not finished, put it in the 1289 // message queue. 1290 if (!mFirstTimeInitialized) { 1291 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1292 } else { 1293 initializeSecondTime(); 1294 } 1295 } 1296 keepScreenOnAwhile(); 1297 } 1298 1299 @Override 1300 public void onConfigurationChanged(Configuration config) { 1301 super.onConfigurationChanged(config); 1302 changeHeadUpDisplayState(); 1303 } 1304 1305 private static ImageManager.DataLocation dataLocation() { 1306 return ImageManager.DataLocation.EXTERNAL; 1307 } 1308 1309 @Override 1310 protected void onPause() { 1311 mPausing = true; 1312 stopPreview(); 1313 // Close the camera now because other activities may need to use it. 1314 closeCamera(); 1315 resetScreenOn(); 1316 changeHeadUpDisplayState(); 1317 1318 if (mFirstTimeInitialized) { 1319 mOrientationListener.disable(); 1320 if (!mIsImageCaptureIntent) { 1321 mThumbController.storeData( 1322 ImageManager.getLastImageThumbPath()); 1323 } 1324 hidePostCaptureAlert(); 1325 } 1326 1327 if (mDidRegister) { 1328 unregisterReceiver(mReceiver); 1329 mDidRegister = false; 1330 } 1331 stopReceivingLocationUpdates(); 1332 1333 if (mFocusToneGenerator != null) { 1334 mFocusToneGenerator.release(); 1335 mFocusToneGenerator = null; 1336 } 1337 1338 if (mStorageHint != null) { 1339 mStorageHint.cancel(); 1340 mStorageHint = null; 1341 } 1342 1343 // If we are in an image capture intent and has taken 1344 // a picture, we just clear it in onPause. 1345 mImageCapture.clearLastData(); 1346 mImageCapture = null; 1347 1348 // Remove the messages in the event queue. 1349 mHandler.removeMessages(RESTART_PREVIEW); 1350 mHandler.removeMessages(FIRST_TIME_INIT); 1351 1352 super.onPause(); 1353 } 1354 1355 @Override 1356 protected void onActivityResult( 1357 int requestCode, int resultCode, Intent data) { 1358 switch (requestCode) { 1359 case CROP_MSG: { 1360 Intent intent = new Intent(); 1361 if (data != null) { 1362 Bundle extras = data.getExtras(); 1363 if (extras != null) { 1364 intent.putExtras(extras); 1365 } 1366 } 1367 setResult(resultCode, intent); 1368 finish(); 1369 1370 File path = getFileStreamPath(sTempCropFilename); 1371 path.delete(); 1372 1373 break; 1374 } 1375 } 1376 } 1377 1378 private boolean canTakePicture() { 1379 return isCameraIdle() && mPreviewing && (mPicturesRemaining > 0); 1380 } 1381 1382 private void autoFocus() { 1383 // Initiate autofocus only when preview is started and snapshot is not 1384 // in progress. 1385 if (canTakePicture()) { 1386 mHeadUpDisplay.setEnabled(false); 1387 Log.v(TAG, "Start autofocus."); 1388 mFocusStartTime = System.currentTimeMillis(); 1389 mFocusState = FOCUSING; 1390 updateFocusIndicator(); 1391 mCameraDevice.autoFocus(mAutoFocusCallback); 1392 } 1393 } 1394 1395 private void cancelAutoFocus() { 1396 // User releases half-pressed focus key. 1397 if (mFocusState == FOCUSING || mFocusState == FOCUS_SUCCESS 1398 || mFocusState == FOCUS_FAIL) { 1399 Log.v(TAG, "Cancel autofocus."); 1400 mHeadUpDisplay.setEnabled(true); 1401 mCameraDevice.cancelAutoFocus(); 1402 } 1403 if (mFocusState != FOCUSING_SNAP_ON_FINISH) { 1404 clearFocusState(); 1405 } 1406 } 1407 1408 private void clearFocusState() { 1409 mFocusState = FOCUS_NOT_STARTED; 1410 updateFocusIndicator(); 1411 } 1412 1413 private void updateFocusIndicator() { 1414 if (mFocusRectangle == null) return; 1415 1416 if (mFocusState == FOCUSING || mFocusState == FOCUSING_SNAP_ON_FINISH) { 1417 mFocusRectangle.showStart(); 1418 } else if (mFocusState == FOCUS_SUCCESS) { 1419 mFocusRectangle.showSuccess(); 1420 } else if (mFocusState == FOCUS_FAIL) { 1421 mFocusRectangle.showFail(); 1422 } else { 1423 mFocusRectangle.clear(); 1424 } 1425 } 1426 1427 @Override 1428 public void onBackPressed() { 1429 if (!isCameraIdle()) { 1430 // ignore backs while we're taking a picture 1431 return; 1432 } else if (mHeadUpDisplay == null || !mHeadUpDisplay.collapse()) { 1433 super.onBackPressed(); 1434 } 1435 } 1436 1437 @Override 1438 public boolean onKeyDown(int keyCode, KeyEvent event) { 1439 switch (keyCode) { 1440 case KeyEvent.KEYCODE_FOCUS: 1441 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1442 doFocus(true); 1443 } 1444 return true; 1445 case KeyEvent.KEYCODE_CAMERA: 1446 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1447 doSnap(); 1448 } 1449 return true; 1450 case KeyEvent.KEYCODE_DPAD_CENTER: 1451 // If we get a dpad center event without any focused view, move 1452 // the focus to the shutter button and press it. 1453 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1454 // Start auto-focus immediately to reduce shutter lag. After 1455 // the shutter button gets the focus, doFocus() will be 1456 // called again but it is fine. 1457 if (mHeadUpDisplay.collapse()) return true; 1458 doFocus(true); 1459 if (mShutterButton.isInTouchMode()) { 1460 mShutterButton.requestFocusFromTouch(); 1461 } else { 1462 mShutterButton.requestFocus(); 1463 } 1464 mShutterButton.setPressed(true); 1465 } 1466 return true; 1467 } 1468 1469 return super.onKeyDown(keyCode, event); 1470 } 1471 1472 @Override 1473 public boolean onKeyUp(int keyCode, KeyEvent event) { 1474 switch (keyCode) { 1475 case KeyEvent.KEYCODE_FOCUS: 1476 if (mFirstTimeInitialized) { 1477 doFocus(false); 1478 } 1479 return true; 1480 } 1481 return super.onKeyUp(keyCode, event); 1482 } 1483 1484 private void doSnap() { 1485 if (mHeadUpDisplay.collapse()) return; 1486 1487 Log.v(TAG, "doSnap: mFocusState=" + mFocusState); 1488 // If the user has half-pressed the shutter and focus is completed, we 1489 // can take the photo right away. If the focus mode is infinity, we can 1490 // also take the photo. 1491 if (mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1492 || (mFocusState == FOCUS_SUCCESS 1493 || mFocusState == FOCUS_FAIL)) { 1494 mImageCapture.onSnap(); 1495 } else if (mFocusState == FOCUSING) { 1496 // Half pressing the shutter (i.e. the focus button event) will 1497 // already have requested AF for us, so just request capture on 1498 // focus here. 1499 mFocusState = FOCUSING_SNAP_ON_FINISH; 1500 } else if (mFocusState == FOCUS_NOT_STARTED) { 1501 // Focus key down event is dropped for some reasons. Just ignore. 1502 } 1503 } 1504 1505 private void doFocus(boolean pressed) { 1506 // Do the focus if the mode is not infinity. 1507 if (mHeadUpDisplay.collapse()) return; 1508 if (!mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY)) { 1509 if (pressed) { // Focus key down. 1510 autoFocus(); 1511 } else { // Focus key up. 1512 cancelAutoFocus(); 1513 } 1514 } 1515 } 1516 1517 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1518 // Make sure we have a surface in the holder before proceeding. 1519 if (holder.getSurface() == null) { 1520 Log.d(TAG, "holder.getSurface() == null"); 1521 return; 1522 } 1523 1524 // We need to save the holder for later use, even when the mCameraDevice 1525 // is null. This could happen if onResume() is invoked after this 1526 // function. 1527 mSurfaceHolder = holder; 1528 1529 // The mCameraDevice will be null if it fails to connect to the camera 1530 // hardware. In this case we will show a dialog and then finish the 1531 // activity, so it's OK to ignore it. 1532 if (mCameraDevice == null) return; 1533 1534 // Sometimes surfaceChanged is called after onPause or before onResume. 1535 // Ignore it. 1536 if (mPausing || isFinishing()) return; 1537 1538 if (mPreviewing && holder.isCreating()) { 1539 // Set preview display if the surface is being created and preview 1540 // was already started. That means preview display was set to null 1541 // and we need to set it now. 1542 setPreviewDisplay(holder); 1543 } else { 1544 // 1. Restart the preview if the size of surface was changed. The 1545 // framework may not support changing preview display on the fly. 1546 // 2. Start the preview now if surface was destroyed and preview 1547 // stopped. 1548 restartPreview(); 1549 } 1550 1551 // If first time initialization is not finished, send a message to do 1552 // it later. We want to finish surfaceChanged as soon as possible to let 1553 // user see preview first. 1554 if (!mFirstTimeInitialized) { 1555 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1556 } else { 1557 initializeSecondTime(); 1558 } 1559 } 1560 1561 public void surfaceCreated(SurfaceHolder holder) { 1562 } 1563 1564 public void surfaceDestroyed(SurfaceHolder holder) { 1565 stopPreview(); 1566 mSurfaceHolder = null; 1567 } 1568 1569 private void closeCamera() { 1570 if (mCameraDevice != null) { 1571 CameraHolder.instance().release(); 1572 mCameraDevice.setZoomChangeListener(null); 1573 mCameraDevice = null; 1574 mPreviewing = false; 1575 } 1576 } 1577 1578 private void ensureCameraDevice() throws CameraHardwareException { 1579 if (mCameraDevice == null) { 1580 mCameraDevice = CameraHolder.instance().open(); 1581 mInitialParams = mCameraDevice.getParameters(); 1582 } 1583 } 1584 1585 private void updateLastImage() { 1586 IImageList list = ImageManager.makeImageList( 1587 mContentResolver, 1588 dataLocation(), 1589 ImageManager.INCLUDE_IMAGES, 1590 ImageManager.SORT_ASCENDING, 1591 ImageManager.CAMERA_IMAGE_BUCKET_ID); 1592 int count = list.getCount(); 1593 if (count > 0) { 1594 IImage image = list.getImageAt(count - 1); 1595 Uri uri = image.fullSizeImageUri(); 1596 mThumbController.setData(uri, image.miniThumbBitmap()); 1597 } else { 1598 mThumbController.setData(null, null); 1599 } 1600 list.close(); 1601 } 1602 1603 private void showCameraErrorAndFinish() { 1604 Resources ress = getResources(); 1605 Util.showFatalErrorAndFinish(Camera.this, 1606 ress.getString(R.string.camera_error_title), 1607 ress.getString(R.string.cannot_connect_camera)); 1608 } 1609 1610 private void restartPreview() { 1611 try { 1612 startPreview(); 1613 } catch (CameraHardwareException e) { 1614 showCameraErrorAndFinish(); 1615 return; 1616 } 1617 } 1618 1619 private void setPreviewDisplay(SurfaceHolder holder) { 1620 try { 1621 mCameraDevice.setPreviewDisplay(holder); 1622 } catch (Throwable ex) { 1623 closeCamera(); 1624 throw new RuntimeException("setPreviewDisplay failed", ex); 1625 } 1626 } 1627 1628 private void startPreview() throws CameraHardwareException { 1629 if (mPausing || isFinishing()) return; 1630 1631 ensureCameraDevice(); 1632 1633 // If we're previewing already, stop the preview first (this will blank 1634 // the screen). 1635 if (mPreviewing) stopPreview(); 1636 1637 setPreviewDisplay(mSurfaceHolder); 1638 setCameraParameters(UPDATE_PARAM_ALL); 1639 1640 final long wallTimeStart = SystemClock.elapsedRealtime(); 1641 final long threadTimeStart = Debug.threadCpuTimeNanos(); 1642 1643 mCameraDevice.setErrorCallback(mErrorCallback); 1644 1645 try { 1646 Log.v(TAG, "startPreview"); 1647 mCameraDevice.startPreview(); 1648 } catch (Throwable ex) { 1649 closeCamera(); 1650 throw new RuntimeException("startPreview failed", ex); 1651 } 1652 mPreviewing = true; 1653 mZoomState = ZOOM_STOPPED; 1654 mStatus = IDLE; 1655 } 1656 1657 private void stopPreview() { 1658 if (mCameraDevice != null && mPreviewing) { 1659 Log.v(TAG, "stopPreview"); 1660 mCameraDevice.stopPreview(); 1661 } 1662 mPreviewing = false; 1663 // If auto focus was in progress, it would have been canceled. 1664 clearFocusState(); 1665 } 1666 1667 private Size getOptimalPreviewSize(List<Size> sizes, double targetRatio) { 1668 final double ASPECT_TOLERANCE = 0.05; 1669 if (sizes == null) return null; 1670 1671 Size optimalSize = null; 1672 double minDiff = Double.MAX_VALUE; 1673 1674 // Because of bugs of overlay and layout, we sometimes will try to 1675 // layout the viewfinder in the portrait orientation and thus get the 1676 // wrong size of mSurfaceView. When we change the preview size, the 1677 // new overlay will be created before the old one closed, which causes 1678 // an exception. For now, just get the screen size 1679 1680 Display display = getWindowManager().getDefaultDisplay(); 1681 int targetHeight = Math.min(display.getHeight(), display.getWidth()); 1682 1683 if (targetHeight <= 0) { 1684 // We don't know the size of SurefaceView, use screen height 1685 WindowManager windowManager = (WindowManager) 1686 getSystemService(Context.WINDOW_SERVICE); 1687 targetHeight = windowManager.getDefaultDisplay().getHeight(); 1688 } 1689 1690 // Try to find an size match aspect ratio and size 1691 for (Size size : sizes) { 1692 double ratio = (double) size.width / size.height; 1693 if (Math.abs(ratio - targetRatio) > ASPECT_TOLERANCE) continue; 1694 if (Math.abs(size.height - targetHeight) < minDiff) { 1695 optimalSize = size; 1696 minDiff = Math.abs(size.height - targetHeight); 1697 } 1698 } 1699 1700 // Cannot find the one match the aspect ratio, ignore the requirement 1701 if (optimalSize == null) { 1702 Log.v(TAG, "No preview size match the aspect ratio"); 1703 minDiff = Double.MAX_VALUE; 1704 for (Size size : sizes) { 1705 if (Math.abs(size.height - targetHeight) < minDiff) { 1706 optimalSize = size; 1707 minDiff = Math.abs(size.height - targetHeight); 1708 } 1709 } 1710 } 1711 return optimalSize; 1712 } 1713 1714 private static boolean isSupported(String value, List<String> supported) { 1715 return supported == null ? false : supported.indexOf(value) >= 0; 1716 } 1717 1718 private void updateCameraParametersInitialize() { 1719 // Reset preview frame rate to the maximum because it may be lowered by 1720 // video camera application. 1721 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1722 if (frameRates != null) { 1723 Integer max = Collections.max(frameRates); 1724 mParameters.setPreviewFrameRate(max); 1725 } 1726 1727 } 1728 1729 private void updateCameraParametersZoom() { 1730 // Set zoom. 1731 if (mParameters.isZoomSupported()) { 1732 mParameters.setZoom(mZoomValue); 1733 } 1734 } 1735 1736 private void updateCameraParametersPreference() { 1737 // Set picture size. 1738 String pictureSize = mPreferences.getString( 1739 CameraSettings.KEY_PICTURE_SIZE, null); 1740 if (pictureSize == null) { 1741 CameraSettings.initialCameraPictureSize(this, mParameters); 1742 } else { 1743 List<Size> supported = mParameters.getSupportedPictureSizes(); 1744 CameraSettings.setCameraPictureSize( 1745 pictureSize, supported, mParameters); 1746 } 1747 1748 // Set the preview frame aspect ratio according to the picture size. 1749 Size size = mParameters.getPictureSize(); 1750 PreviewFrameLayout frameLayout = 1751 (PreviewFrameLayout) findViewById(R.id.frame_layout); 1752 frameLayout.setAspectRatio((double) size.width / size.height); 1753 1754 // Set a preview size that is closest to the viewfinder height and has 1755 // the right aspect ratio. 1756 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1757 Size optimalSize = getOptimalPreviewSize( 1758 sizes, (double) size.width / size.height); 1759 if (optimalSize != null) { 1760 Size original = mParameters.getPreviewSize(); 1761 if (!original.equals(optimalSize)) { 1762 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1763 1764 // Zoom related settings will be changed for different preview 1765 // sizes, so set and read the parameters to get lastest values 1766 mCameraDevice.setParameters(mParameters); 1767 mParameters = mCameraDevice.getParameters(); 1768 } 1769 } 1770 1771 // Since change scene mode may change supported values, 1772 // Set scene mode first, 1773 mSceneMode = mPreferences.getString( 1774 CameraSettings.KEY_SCENE_MODE, 1775 getString(R.string.pref_camera_scenemode_default)); 1776 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 1777 if (!mParameters.getSceneMode().equals(mSceneMode)) { 1778 mParameters.setSceneMode(mSceneMode); 1779 mCameraDevice.setParameters(mParameters); 1780 1781 // Setting scene mode will change the settings of flash mode, 1782 // white balance, and focus mode. Here we read back the 1783 // parameters, so we can know those settings. 1784 mParameters = mCameraDevice.getParameters(); 1785 } 1786 } else { 1787 mSceneMode = mParameters.getSceneMode(); 1788 if (mSceneMode == null) { 1789 mSceneMode = Parameters.SCENE_MODE_AUTO; 1790 } 1791 } 1792 1793 // Set JPEG quality. 1794 String jpegQuality = mPreferences.getString( 1795 CameraSettings.KEY_JPEG_QUALITY, 1796 getString(R.string.pref_camera_jpegquality_default)); 1797 mParameters.setJpegQuality(JpegEncodingQualityMappings.getQualityNumber(jpegQuality)); 1798 1799 // For the following settings, we need to check if the settings are 1800 // still supported by latest driver, if not, ignore the settings. 1801 1802 // Set color effect parameter. 1803 String colorEffect = mPreferences.getString( 1804 CameraSettings.KEY_COLOR_EFFECT, 1805 getString(R.string.pref_camera_coloreffect_default)); 1806 if (isSupported(colorEffect, mParameters.getSupportedColorEffects())) { 1807 mParameters.setColorEffect(colorEffect); 1808 } 1809 1810 // Set exposure compensation 1811 String exposure = mPreferences.getString( 1812 CameraSettings.KEY_EXPOSURE, 1813 getString(R.string.pref_exposure_default)); 1814 try { 1815 int value = Integer.parseInt(exposure); 1816 int max = mParameters.getMaxExposureCompensation(); 1817 int min = mParameters.getMinExposureCompensation(); 1818 if (value >= min && value <= max) { 1819 mParameters.setExposureCompensation(value); 1820 } else { 1821 Log.w(TAG, "invalid exposure range: " + exposure); 1822 } 1823 } catch (NumberFormatException e) { 1824 Log.w(TAG, "invalid exposure: " + exposure); 1825 } 1826 1827 if (mGLRootView != null) updateSceneModeInHud(); 1828 1829 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1830 // Set flash mode. 1831 String flashMode = mPreferences.getString( 1832 CameraSettings.KEY_FLASH_MODE, 1833 getString(R.string.pref_camera_flashmode_default)); 1834 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 1835 if (isSupported(flashMode, supportedFlash)) { 1836 mParameters.setFlashMode(flashMode); 1837 } else { 1838 flashMode = mParameters.getFlashMode(); 1839 if (flashMode == null) { 1840 flashMode = getString( 1841 R.string.pref_camera_flashmode_no_flash); 1842 } 1843 } 1844 1845 // Set white balance parameter. 1846 String whiteBalance = mPreferences.getString( 1847 CameraSettings.KEY_WHITE_BALANCE, 1848 getString(R.string.pref_camera_whitebalance_default)); 1849 if (isSupported(whiteBalance, 1850 mParameters.getSupportedWhiteBalance())) { 1851 mParameters.setWhiteBalance(whiteBalance); 1852 } else { 1853 whiteBalance = mParameters.getWhiteBalance(); 1854 if (whiteBalance == null) { 1855 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 1856 } 1857 } 1858 1859 // Set focus mode. 1860 mFocusMode = mPreferences.getString( 1861 CameraSettings.KEY_FOCUS_MODE, 1862 getString(R.string.pref_camera_focusmode_default)); 1863 if (isSupported(mFocusMode, mParameters.getSupportedFocusModes())) { 1864 mParameters.setFocusMode(mFocusMode); 1865 } else { 1866 mFocusMode = mParameters.getFocusMode(); 1867 if (mFocusMode == null) { 1868 mFocusMode = Parameters.FOCUS_MODE_AUTO; 1869 } 1870 } 1871 } else { 1872 mFocusMode = mParameters.getFocusMode(); 1873 } 1874 } 1875 1876 // We separate the parameters into several subsets, so we can update only 1877 // the subsets actually need updating. The PREFERENCE set needs extra 1878 // locking because the preference can be changed from GLThread as well. 1879 private void setCameraParameters(int updateSet) { 1880 mParameters = mCameraDevice.getParameters(); 1881 1882 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 1883 updateCameraParametersInitialize(); 1884 } 1885 1886 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 1887 updateCameraParametersZoom(); 1888 } 1889 1890 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 1891 updateCameraParametersPreference(); 1892 } 1893 1894 mCameraDevice.setParameters(mParameters); 1895 } 1896 1897 // If the Camera is idle, update the parameters immediately, otherwise 1898 // accumulate them in mUpdateSet and update later. 1899 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 1900 mUpdateSet |= additionalUpdateSet; 1901 if (mCameraDevice == null) { 1902 // We will update all the parameters when we open the device, so 1903 // we don't need to do anything now. 1904 mUpdateSet = 0; 1905 return; 1906 } else if (isCameraIdle()) { 1907 setCameraParameters(mUpdateSet); 1908 mUpdateSet = 0; 1909 } else { 1910 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 1911 mHandler.sendEmptyMessageDelayed( 1912 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 1913 } 1914 } 1915 } 1916 1917 private void gotoGallery() { 1918 MenuHelper.gotoCameraImageGallery(this); 1919 } 1920 1921 private void viewLastImage() { 1922 if (mThumbController.isUriValid()) { 1923 Intent intent = new Intent(Util.REVIEW_ACTION, mThumbController.getUri()); 1924 try { 1925 startActivity(intent); 1926 } catch (ActivityNotFoundException ex) { 1927 Log.e(TAG, "review image fail", ex); 1928 } 1929 } else { 1930 Log.e(TAG, "Can't view last image."); 1931 } 1932 } 1933 1934 private void startReceivingLocationUpdates() { 1935 if (mLocationManager != null) { 1936 try { 1937 mLocationManager.requestLocationUpdates( 1938 LocationManager.NETWORK_PROVIDER, 1939 1000, 1940 0F, 1941 mLocationListeners[1]); 1942 } catch (java.lang.SecurityException ex) { 1943 Log.i(TAG, "fail to request location update, ignore", ex); 1944 } catch (IllegalArgumentException ex) { 1945 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1946 } 1947 try { 1948 mLocationManager.requestLocationUpdates( 1949 LocationManager.GPS_PROVIDER, 1950 1000, 1951 0F, 1952 mLocationListeners[0]); 1953 } catch (java.lang.SecurityException ex) { 1954 Log.i(TAG, "fail to request location update, ignore", ex); 1955 } catch (IllegalArgumentException ex) { 1956 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1957 } 1958 } 1959 } 1960 1961 private void stopReceivingLocationUpdates() { 1962 if (mLocationManager != null) { 1963 for (int i = 0; i < mLocationListeners.length; i++) { 1964 try { 1965 mLocationManager.removeUpdates(mLocationListeners[i]); 1966 } catch (Exception ex) { 1967 Log.i(TAG, "fail to remove location listners, ignore", ex); 1968 } 1969 } 1970 } 1971 } 1972 1973 private Location getCurrentLocation() { 1974 // go in best to worst order 1975 for (int i = 0; i < mLocationListeners.length; i++) { 1976 Location l = mLocationListeners[i].current(); 1977 if (l != null) return l; 1978 } 1979 return null; 1980 } 1981 1982 private boolean isCameraIdle() { 1983 return mStatus == IDLE && mFocusState == FOCUS_NOT_STARTED; 1984 } 1985 1986 private boolean isImageCaptureIntent() { 1987 String action = getIntent().getAction(); 1988 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 1989 } 1990 1991 private void setupCaptureParams() { 1992 Bundle myExtras = getIntent().getExtras(); 1993 if (myExtras != null) { 1994 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 1995 mCropValue = myExtras.getString("crop"); 1996 } 1997 } 1998 1999 private void showPostCaptureAlert() { 2000 if (mIsImageCaptureIntent) { 2001 findViewById(R.id.shutter_button).setVisibility(View.INVISIBLE); 2002 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2003 for (int id : pickIds) { 2004 View button = findViewById(id); 2005 ((View) button.getParent()).setVisibility(View.VISIBLE); 2006 } 2007 } 2008 } 2009 2010 private void hidePostCaptureAlert() { 2011 if (mIsImageCaptureIntent) { 2012 findViewById(R.id.shutter_button).setVisibility(View.VISIBLE); 2013 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2014 for (int id : pickIds) { 2015 View button = findViewById(id); 2016 ((View) button.getParent()).setVisibility(View.GONE); 2017 } 2018 } 2019 } 2020 2021 private int calculatePicturesRemaining() { 2022 mPicturesRemaining = MenuHelper.calculatePicturesRemaining(); 2023 return mPicturesRemaining; 2024 } 2025 2026 @Override 2027 public boolean onPrepareOptionsMenu(Menu menu) { 2028 super.onPrepareOptionsMenu(menu); 2029 // Only show the menu when camera is idle. 2030 for (int i = 0; i < menu.size(); i++) { 2031 menu.getItem(i).setVisible(isCameraIdle()); 2032 } 2033 2034 return true; 2035 } 2036 2037 @Override 2038 public boolean onCreateOptionsMenu(Menu menu) { 2039 super.onCreateOptionsMenu(menu); 2040 2041 if (mIsImageCaptureIntent) { 2042 // No options menu for attach mode. 2043 return false; 2044 } else { 2045 addBaseMenuItems(menu); 2046 } 2047 return true; 2048 } 2049 2050 private void addBaseMenuItems(Menu menu) { 2051 MenuHelper.addSwitchModeMenuItem(menu, true, new Runnable() { 2052 public void run() { 2053 switchToVideoMode(); 2054 } 2055 }); 2056 MenuItem gallery = menu.add(Menu.NONE, Menu.NONE, 2057 MenuHelper.POSITION_GOTO_GALLERY, 2058 R.string.camera_gallery_photos_text) 2059 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2060 public boolean onMenuItemClick(MenuItem item) { 2061 gotoGallery(); 2062 return true; 2063 } 2064 }); 2065 gallery.setIcon(android.R.drawable.ic_menu_gallery); 2066 mGalleryItems.add(gallery); 2067 } 2068 2069 private boolean switchToVideoMode() { 2070 if (isFinishing() || !isCameraIdle()) return false; 2071 MenuHelper.gotoVideoMode(this); 2072 mHandler.removeMessages(FIRST_TIME_INIT); 2073 finish(); 2074 return true; 2075 } 2076 2077 public boolean onSwitchChanged(Switcher source, boolean onOff) { 2078 if (onOff == SWITCH_VIDEO) { 2079 return switchToVideoMode(); 2080 } else { 2081 return true; 2082 } 2083 } 2084 2085 private void onSharedPreferenceChanged() { 2086 // ignore the events after "onPause()" 2087 if (mPausing) return; 2088 2089 boolean recordLocation; 2090 2091 recordLocation = RecordLocationPreference.get( 2092 mPreferences, getContentResolver()); 2093 mQuickCapture = getQuickCaptureSettings(); 2094 2095 if (mRecordLocation != recordLocation) { 2096 mRecordLocation = recordLocation; 2097 if (mRecordLocation) { 2098 startReceivingLocationUpdates(); 2099 } else { 2100 stopReceivingLocationUpdates(); 2101 } 2102 } 2103 2104 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 2105 } 2106 2107 private boolean getQuickCaptureSettings() { 2108 String value = mPreferences.getString( 2109 CameraSettings.KEY_QUICK_CAPTURE, 2110 getString(R.string.pref_camera_quickcapture_default)); 2111 return CameraSettings.QUICK_CAPTURE_ON.equals(value); 2112 } 2113 2114 @Override 2115 public void onUserInteraction() { 2116 super.onUserInteraction(); 2117 keepScreenOnAwhile(); 2118 } 2119 2120 private void resetScreenOn() { 2121 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2122 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2123 } 2124 2125 private void keepScreenOnAwhile() { 2126 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2127 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2128 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2129 } 2130 2131 private class MyHeadUpDisplayListener implements HeadUpDisplay.Listener { 2132 2133 public void onSharedPreferencesChanged() { 2134 Camera.this.onSharedPreferenceChanged(); 2135 } 2136 2137 public void onRestorePreferencesClicked() { 2138 Camera.this.onRestorePreferencesClicked(); 2139 } 2140 2141 public void onPopupWindowVisibilityChanged(int visibility) { 2142 } 2143 } 2144 2145 protected void onRestorePreferencesClicked() { 2146 if (mPausing) return; 2147 Runnable runnable = new Runnable() { 2148 public void run() { 2149 mHeadUpDisplay.restorePreferences(mParameters); 2150 } 2151 }; 2152 MenuHelper.confirmAction(this, 2153 getString(R.string.confirm_restore_title), 2154 getString(R.string.confirm_restore_message), 2155 runnable); 2156 } 2157} 2158 2159class FocusRectangle extends View { 2160 2161 @SuppressWarnings("unused") 2162 private static final String TAG = "FocusRectangle"; 2163 2164 public FocusRectangle(Context context, AttributeSet attrs) { 2165 super(context, attrs); 2166 } 2167 2168 private void setDrawable(int resid) { 2169 setBackgroundDrawable(getResources().getDrawable(resid)); 2170 } 2171 2172 public void showStart() { 2173 setDrawable(R.drawable.focus_focusing); 2174 } 2175 2176 public void showSuccess() { 2177 setDrawable(R.drawable.focus_focused); 2178 } 2179 2180 public void showFail() { 2181 setDrawable(R.drawable.focus_focus_failed); 2182 } 2183 2184 public void clear() { 2185 setBackgroundDrawable(null); 2186 } 2187} 2188 2189/* 2190 * Provide a mapping for Jpeg encoding quality levels 2191 * from String representation to numeric representation. 2192 */ 2193class JpegEncodingQualityMappings { 2194 private static final String TAG = "JpegEncodingQualityMappings"; 2195 private static final int DEFAULT_QUALITY = 85; 2196 private static HashMap<String, Integer> mHashMap = 2197 new HashMap<String, Integer>(); 2198 2199 static { 2200 mHashMap.put("normal", CameraProfile.QUALITY_LOW); 2201 mHashMap.put("fine", CameraProfile.QUALITY_MEDIUM); 2202 mHashMap.put("superfine", CameraProfile.QUALITY_HIGH); 2203 } 2204 2205 // Retrieve and return the Jpeg encoding quality number 2206 // for the given quality level. 2207 public static int getQualityNumber(String jpegQuality) { 2208 Integer quality = mHashMap.get(jpegQuality); 2209 if (quality == null) { 2210 Log.w(TAG, "Unknown Jpeg quality: " + jpegQuality); 2211 return DEFAULT_QUALITY; 2212 } 2213 return CameraProfile.getJpegEncodingQualityParameter(quality.intValue()); 2214 } 2215} 2216