Camera.java revision 523432315cea8f18d703a0d547b4614ce42b6918
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.Resources; 30import android.graphics.Bitmap; 31import android.graphics.BitmapFactory; 32import android.hardware.Camera.Parameters; 33import android.hardware.Camera.PictureCallback; 34import android.hardware.Camera.Size; 35import android.location.Location; 36import android.location.LocationManager; 37import android.location.LocationProvider; 38import android.media.AudioManager; 39import android.media.CameraProfile; 40import android.media.ToneGenerator; 41import android.net.Uri; 42import android.os.Build; 43import android.os.Bundle; 44import android.os.Debug; 45import android.os.Environment; 46import android.os.Handler; 47import android.os.Message; 48import android.os.SystemClock; 49import android.preference.PreferenceManager; 50import android.provider.MediaStore; 51import android.provider.Settings; 52import android.util.AttributeSet; 53import android.util.Log; 54import android.view.Display; 55import android.view.GestureDetector; 56import android.view.KeyEvent; 57import android.view.LayoutInflater; 58import android.view.Menu; 59import android.view.MenuItem; 60import android.view.MotionEvent; 61import android.view.OrientationEventListener; 62import android.view.SurfaceHolder; 63import android.view.SurfaceView; 64import android.view.View; 65import android.view.ViewGroup; 66import android.view.Window; 67import android.view.WindowManager; 68import android.view.MenuItem.OnMenuItemClickListener; 69import android.widget.ImageView; 70 71import com.android.camera.gallery.IImage; 72import com.android.camera.gallery.IImageList; 73import com.android.camera.ui.CameraHeadUpDisplay; 74import com.android.camera.ui.GLRootView; 75import com.android.camera.ui.HeadUpDisplay; 76import com.android.camera.ui.ZoomController; 77 78import java.io.File; 79import java.io.FileNotFoundException; 80import java.io.FileOutputStream; 81import java.io.IOException; 82import java.io.OutputStream; 83import java.text.SimpleDateFormat; 84import java.util.ArrayList; 85import java.util.Collections; 86import java.util.Date; 87import java.util.HashMap; 88import java.util.List; 89 90/** The Camera activity which can preview and take pictures. */ 91public class Camera extends NoSearchActivity implements View.OnClickListener, 92 ShutterButton.OnShutterButtonListener, SurfaceHolder.Callback, 93 Switcher.OnSwitchListener { 94 95 private static final String TAG = "camera"; 96 97 private static final int CROP_MSG = 1; 98 private static final int FIRST_TIME_INIT = 2; 99 private static final int RESTART_PREVIEW = 3; 100 private static final int CLEAR_SCREEN_DELAY = 4; 101 private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 5; 102 103 // The subset of parameters we need to update in setCameraParameters(). 104 private static final int UPDATE_PARAM_INITIALIZE = 1; 105 private static final int UPDATE_PARAM_ZOOM = 2; 106 private static final int UPDATE_PARAM_PREFERENCE = 4; 107 private static final int UPDATE_PARAM_ALL = -1; 108 109 // When setCameraParametersWhenIdle() is called, we accumulate the subsets 110 // needed to be updated in mUpdateSet. 111 private int mUpdateSet; 112 113 // The brightness settings used when it is set to automatic in the system. 114 // The reason why it is set to 0.7 is just because 1.0 is too bright. 115 private static final float DEFAULT_CAMERA_BRIGHTNESS = 0.7f; 116 117 private static final int SCREEN_DELAY = 2 * 60 * 1000; 118 private static final int FOCUS_BEEP_VOLUME = 100; 119 120 121 private static final int ZOOM_STOPPED = 0; 122 private static final int ZOOM_START = 1; 123 private static final int ZOOM_STOPPING = 2; 124 125 private int mZoomState = ZOOM_STOPPED; 126 private boolean mSmoothZoomSupported = false; 127 private int mZoomValue; // The current zoom value. 128 private int mZoomMax; 129 private int mTargetZoomValue; 130 131 private Parameters mParameters; 132 private Parameters mInitialParams; 133 134 private OrientationEventListener mOrientationListener; 135 private int mLastOrientation = 0; // No rotation (landscape) by default. 136 private SharedPreferences mPreferences; 137 138 private static final int IDLE = 1; 139 private static final int SNAPSHOT_IN_PROGRESS = 2; 140 141 private static final boolean SWITCH_CAMERA = true; 142 private static final boolean SWITCH_VIDEO = false; 143 144 private int mStatus = IDLE; 145 private static final String sTempCropFilename = "crop-temp"; 146 147 private android.hardware.Camera mCameraDevice; 148 private ContentProviderClient mMediaProviderClient; 149 private SurfaceView mSurfaceView; 150 private SurfaceHolder mSurfaceHolder = null; 151 private ShutterButton mShutterButton; 152 private FocusRectangle mFocusRectangle; 153 private ToneGenerator mFocusToneGenerator; 154 private GestureDetector mGestureDetector; 155 private Switcher mSwitcher; 156 private boolean mStartPreviewFail = false; 157 158 private GLRootView mGLRootView; 159 160 // mPostCaptureAlert, mLastPictureButton, mThumbController 161 // are non-null only if isImageCaptureIntent() is true. 162 private ImageView mLastPictureButton; 163 private ThumbnailController mThumbController; 164 165 // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. 166 private String mCropValue; 167 private Uri mSaveUri; 168 169 private ImageCapture mImageCapture = null; 170 171 private boolean mPreviewing; 172 private boolean mPausing; 173 private boolean mFirstTimeInitialized; 174 private boolean mIsImageCaptureIntent; 175 private boolean mRecordLocation; 176 177 private static final int FOCUS_NOT_STARTED = 0; 178 private static final int FOCUSING = 1; 179 private static final int FOCUSING_SNAP_ON_FINISH = 2; 180 private static final int FOCUS_SUCCESS = 3; 181 private static final int FOCUS_FAIL = 4; 182 private int mFocusState = FOCUS_NOT_STARTED; 183 184 private ContentResolver mContentResolver; 185 private boolean mDidRegister = false; 186 187 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 188 189 private LocationManager mLocationManager = null; 190 191 private final ShutterCallback mShutterCallback = new ShutterCallback(); 192 private final PostViewPictureCallback mPostViewPictureCallback = 193 new PostViewPictureCallback(); 194 private final RawPictureCallback mRawPictureCallback = 195 new RawPictureCallback(); 196 private final AutoFocusCallback mAutoFocusCallback = 197 new AutoFocusCallback(); 198 private final ZoomListener mZoomListener = new ZoomListener(); 199 // Use the ErrorCallback to capture the crash count 200 // on the mediaserver 201 private final ErrorCallback mErrorCallback = new ErrorCallback(); 202 203 private long mFocusStartTime; 204 private long mFocusCallbackTime; 205 private long mCaptureStartTime; 206 private long mShutterCallbackTime; 207 private long mPostViewPictureCallbackTime; 208 private long mRawPictureCallbackTime; 209 private long mJpegPictureCallbackTime; 210 private int mPicturesRemaining; 211 212 // These latency time are for the CameraLatency test. 213 public long mAutoFocusTime; 214 public long mShutterLag; 215 public long mShutterToPictureDisplayedTime; 216 public long mPictureDisplayedToJpegCallbackTime; 217 public long mJpegCallbackFinishTime; 218 219 // Add for test 220 public static boolean mMediaServerDied = false; 221 222 // Focus mode. Options are pref_camera_focusmode_entryvalues. 223 private String mFocusMode; 224 225 private final Handler mHandler = new MainHandler(); 226 private boolean mQuickCapture; 227 private CameraHeadUpDisplay mHeadUpDisplay; 228 229 /** 230 * This Handler is used to post message back onto the main thread of the 231 * application 232 */ 233 private class MainHandler extends Handler { 234 @Override 235 public void handleMessage(Message msg) { 236 switch (msg.what) { 237 case RESTART_PREVIEW: { 238 restartPreview(); 239 if (mJpegPictureCallbackTime != 0) { 240 long now = System.currentTimeMillis(); 241 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 242 Log.v(TAG, "mJpegCallbackFinishTime = " 243 + mJpegCallbackFinishTime + "ms"); 244 mJpegPictureCallbackTime = 0; 245 } 246 break; 247 } 248 249 case CLEAR_SCREEN_DELAY: { 250 getWindow().clearFlags( 251 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 252 break; 253 } 254 255 case FIRST_TIME_INIT: { 256 initializeFirstTime(); 257 break; 258 } 259 260 case SET_CAMERA_PARAMETERS_WHEN_IDLE: { 261 setCameraParametersWhenIdle(0); 262 break; 263 } 264 } 265 } 266 } 267 268 private void resetExposureCompensation() { 269 String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, 270 CameraSettings.EXPOSURE_DEFAULT_VALUE); 271 if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { 272 Editor editor = mPreferences.edit(); 273 editor.putString(CameraSettings.KEY_EXPOSURE, "0"); 274 editor.commit(); 275 if (mHeadUpDisplay != null) { 276 mHeadUpDisplay.reloadPreferences(); 277 } 278 } 279 } 280 281 private void keepMediaProviderInstance() { 282 // We want to keep a reference to MediaProvider in camera's lifecycle. 283 // TODO: Utilize mMediaProviderClient instance to replace 284 // ContentResolver calls. 285 if (mMediaProviderClient == null) { 286 mMediaProviderClient = getContentResolver() 287 .acquireContentProviderClient(MediaStore.AUTHORITY); 288 } 289 } 290 291 // Snapshots can only be taken after this is called. It should be called 292 // once only. We could have done these things in onCreate() but we want to 293 // make preview screen appear as soon as possible. 294 private void initializeFirstTime() { 295 if (mFirstTimeInitialized) return; 296 297 // Create orientation listenter. This should be done first because it 298 // takes some time to get first orientation. 299 mOrientationListener = new OrientationEventListener(Camera.this) { 300 @Override 301 public void onOrientationChanged(int orientation) { 302 // We keep the last known orientation. So if the user 303 // first orient the camera then point the camera to 304 if (orientation != ORIENTATION_UNKNOWN) { 305 orientation += 90; 306 } 307 orientation = ImageManager.roundOrientation(orientation); 308 if (orientation != mLastOrientation) { 309 mLastOrientation = orientation; 310 if (!mIsImageCaptureIntent) { 311 setOrientationIndicator(mLastOrientation); 312 } 313 mGLRootView.queueEvent(new Runnable() { 314 public void run() { 315 mHeadUpDisplay.setOrientation(mLastOrientation); 316 } 317 }); 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 ImageManager.ensureOSXCompatibleFolder(); 356 357 initializeScreenBrightness(); 358 359 installIntentFilter(); 360 361 initializeFocusTone(); 362 363 mHeadUpDisplay = new CameraHeadUpDisplay(this); 364 CameraSettings settings = new CameraSettings(this, mInitialParams); 365 mHeadUpDisplay.initialize(this, 366 settings.getPreferenceGroup(R.xml.camera_preferences)); 367 mHeadUpDisplay.setListener(new MyHeadUpDisplayListener()); 368 initializeZoom(); 369 mGLRootView.setContentPane(mHeadUpDisplay); 370 mFirstTimeInitialized = true; 371 } 372 373 private void updateThumbnailButton() { 374 // Update last image if URI is invalid and the storage is ready. 375 if (!mThumbController.isUriValid() && mPicturesRemaining >= 0) { 376 updateLastImage(); 377 } 378 mThumbController.updateDisplayIfNeeded(); 379 } 380 381 // If the activity is paused and resumed, this method will be called in 382 // onResume. 383 private void initializeSecondTime() { 384 // Start orientation listener as soon as possible because it takes 385 // some time to get first orientation. 386 mOrientationListener.enable(); 387 388 // Start location update if needed. 389 synchronized (mPreferences) { 390 mRecordLocation = RecordLocationPreference.get( 391 mPreferences, getContentResolver()); 392 } 393 if (mRecordLocation) startReceivingLocationUpdates(); 394 395 installIntentFilter(); 396 397 initializeFocusTone(); 398 399 keepMediaProviderInstance(); 400 checkStorage(); 401 402 mCameraDevice.setZoomChangeListener(mZoomListener); 403 404 if (!mIsImageCaptureIntent) { 405 updateThumbnailButton(); 406 } 407 } 408 409 private void initializeZoom() { 410 if (!mParameters.isZoomSupported()) return; 411 412 // Maximum zoom value may change after preview size is set. Get the 413 // latest parameters here. 414 mParameters = mCameraDevice.getParameters(); 415 mZoomMax = mParameters.getMaxZoom(); 416 mSmoothZoomSupported = mParameters.isSmoothZoomSupported(); 417 mGestureDetector = new GestureDetector(this, new ZoomGestureListener()); 418 419 mCameraDevice.setZoomChangeListener(mZoomListener); 420 421 mHeadUpDisplay.setZoomRatios(getZoomRatios()); 422 mHeadUpDisplay.setZoomIndex(mZoomValue); 423 424 mHeadUpDisplay.setZoomListener(new ZoomController.ZoomListener() { 425 public void onZoomChanged( 426 final int index, float ratio, boolean isMoving) { 427 mHandler.post(new Runnable() { 428 public void run() { 429 onZoomValueChanged(index); 430 } 431 }); 432 } 433 }); 434 } 435 436 private void onZoomValueChanged(int index) { 437 if (mSmoothZoomSupported) { 438 if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { 439 mTargetZoomValue = index; 440 if (mZoomState == ZOOM_START) { 441 mZoomState = ZOOM_STOPPING; 442 mCameraDevice.stopSmoothZoom(); 443 } 444 } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { 445 mTargetZoomValue = index; 446 mCameraDevice.startSmoothZoom(index); 447 mZoomState = ZOOM_START; 448 } 449 } else { 450 mZoomValue = index; 451 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 452 } 453 } 454 455 private float[] getZoomRatios() { 456 List<Integer> zoomRatios = mParameters.getZoomRatios(); 457 if (zoomRatios != null) { 458 float result[] = new float[zoomRatios.size()]; 459 for (int i = 0, n = result.length; i < n; ++i) { 460 result[i] = (float) zoomRatios.get(i) / 100f; 461 } 462 return result; 463 } else { 464 //1.0, 1.2, 1.44, 1.6, 1.8, 2.0 465 float result[] = new float[mZoomMax + 1]; 466 for (int i = 0, n = result.length; i < n; ++i) { 467 result[i] = 1 + i * 0.2f; 468 } 469 return result; 470 } 471 } 472 473 private class ZoomGestureListener extends 474 GestureDetector.SimpleOnGestureListener { 475 476 @Override 477 public boolean onDoubleTap(MotionEvent e) { 478 // Perform zoom only when preview is started and snapshot is not in 479 // progress. 480 if (mPausing || !isCameraIdle() || !mPreviewing 481 || mHeadUpDisplay == null || mZoomState != ZOOM_STOPPED) { 482 return false; 483 } 484 485 if (mZoomValue < mZoomMax) { 486 // Zoom in to the maximum. 487 mZoomValue = mZoomMax; 488 } else { 489 mZoomValue = 0; 490 } 491 492 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 493 494 mHeadUpDisplay.setZoomIndex(mZoomValue); 495 return true; 496 } 497 } 498 499 @Override 500 public boolean dispatchTouchEvent(MotionEvent m) { 501 if (!super.dispatchTouchEvent(m) && mGestureDetector != null) { 502 return mGestureDetector.onTouchEvent(m); 503 } 504 return true; 505 } 506 507 LocationListener [] mLocationListeners = new LocationListener[] { 508 new LocationListener(LocationManager.GPS_PROVIDER), 509 new LocationListener(LocationManager.NETWORK_PROVIDER) 510 }; 511 512 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 513 @Override 514 public void onReceive(Context context, Intent intent) { 515 String action = intent.getAction(); 516 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 517 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 518 || action.equals(Intent.ACTION_MEDIA_CHECKING)) { 519 checkStorage(); 520 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 521 checkStorage(); 522 if (!mIsImageCaptureIntent) { 523 updateThumbnailButton(); 524 } 525 } 526 } 527 }; 528 529 private class LocationListener 530 implements android.location.LocationListener { 531 Location mLastLocation; 532 boolean mValid = false; 533 String mProvider; 534 535 public LocationListener(String provider) { 536 mProvider = provider; 537 mLastLocation = new Location(mProvider); 538 } 539 540 public void onLocationChanged(Location newLocation) { 541 if (newLocation.getLatitude() == 0.0 542 && newLocation.getLongitude() == 0.0) { 543 // Hack to filter out 0.0,0.0 locations 544 return; 545 } 546 // If GPS is available before start camera, we won't get status 547 // update so update GPS indicator when we receive data. 548 if (mRecordLocation 549 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 550 if (mHeadUpDisplay != null) { 551 mHeadUpDisplay.setGpsHasSignal(true); 552 } 553 } 554 mLastLocation.set(newLocation); 555 mValid = true; 556 } 557 558 public void onProviderEnabled(String provider) { 559 } 560 561 public void onProviderDisabled(String provider) { 562 mValid = false; 563 } 564 565 public void onStatusChanged( 566 String provider, int status, Bundle extras) { 567 switch(status) { 568 case LocationProvider.OUT_OF_SERVICE: 569 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 570 mValid = false; 571 if (mRecordLocation && 572 LocationManager.GPS_PROVIDER.equals(provider)) { 573 if (mHeadUpDisplay != null) { 574 mHeadUpDisplay.setGpsHasSignal(false); 575 } 576 } 577 break; 578 } 579 } 580 } 581 582 public Location current() { 583 return mValid ? mLastLocation : null; 584 } 585 } 586 587 private final class ShutterCallback 588 implements android.hardware.Camera.ShutterCallback { 589 public void onShutter() { 590 mShutterCallbackTime = System.currentTimeMillis(); 591 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 592 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 593 clearFocusState(); 594 } 595 } 596 597 private final class PostViewPictureCallback implements PictureCallback { 598 public void onPictureTaken( 599 byte [] data, android.hardware.Camera camera) { 600 mPostViewPictureCallbackTime = System.currentTimeMillis(); 601 Log.v(TAG, "mShutterToPostViewCallbackTime = " 602 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 603 + "ms"); 604 } 605 } 606 607 private final class RawPictureCallback implements PictureCallback { 608 public void onPictureTaken( 609 byte [] rawData, android.hardware.Camera camera) { 610 mRawPictureCallbackTime = System.currentTimeMillis(); 611 Log.v(TAG, "mShutterToRawCallbackTime = " 612 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 613 } 614 } 615 616 private final class JpegPictureCallback implements PictureCallback { 617 Location mLocation; 618 619 public JpegPictureCallback(Location loc) { 620 mLocation = loc; 621 } 622 623 public void onPictureTaken( 624 final byte [] jpegData, final android.hardware.Camera camera) { 625 if (mPausing) { 626 return; 627 } 628 629 mJpegPictureCallbackTime = System.currentTimeMillis(); 630 // If postview callback has arrived, the captured image is displayed 631 // in postview callback. If not, the captured image is displayed in 632 // raw picture callback. 633 if (mPostViewPictureCallbackTime != 0) { 634 mShutterToPictureDisplayedTime = 635 mPostViewPictureCallbackTime - mShutterCallbackTime; 636 mPictureDisplayedToJpegCallbackTime = 637 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 638 } else { 639 mShutterToPictureDisplayedTime = 640 mRawPictureCallbackTime - mShutterCallbackTime; 641 mPictureDisplayedToJpegCallbackTime = 642 mJpegPictureCallbackTime - mRawPictureCallbackTime; 643 } 644 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 645 + mPictureDisplayedToJpegCallbackTime + "ms"); 646 mHeadUpDisplay.setEnabled(true); 647 648 if (!mIsImageCaptureIntent) { 649 // We want to show the taken picture for a while, so we wait 650 // for at least 1.2 second before restarting the preview. 651 long delay = 1200 - mPictureDisplayedToJpegCallbackTime; 652 if (delay < 0 || mQuickCapture) { 653 restartPreview(); 654 } else { 655 mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay); 656 } 657 } 658 mImageCapture.storeImage(jpegData, camera, mLocation); 659 660 // Calculate this in advance of each shot so we don't add to shutter 661 // latency. It's true that someone else could write to the SD card in 662 // the mean time and fill it, but that could have happened between the 663 // shutter press and saving the JPEG too. 664 calculatePicturesRemaining(); 665 666 if (mPicturesRemaining < 1) { 667 updateStorageHint(mPicturesRemaining); 668 } 669 670 if (!mHandler.hasMessages(RESTART_PREVIEW)) { 671 long now = System.currentTimeMillis(); 672 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 673 Log.v(TAG, "mJpegCallbackFinishTime = " 674 + mJpegCallbackFinishTime + "ms"); 675 mJpegPictureCallbackTime = 0; 676 } 677 } 678 } 679 680 private final class AutoFocusCallback 681 implements android.hardware.Camera.AutoFocusCallback { 682 public void onAutoFocus( 683 boolean focused, android.hardware.Camera camera) { 684 mFocusCallbackTime = System.currentTimeMillis(); 685 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 686 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 687 if (mFocusState == FOCUSING_SNAP_ON_FINISH) { 688 // Take the picture no matter focus succeeds or fails. No need 689 // to play the AF sound if we're about to play the shutter 690 // sound. 691 if (focused) { 692 mFocusState = FOCUS_SUCCESS; 693 } else { 694 mFocusState = FOCUS_FAIL; 695 } 696 mImageCapture.onSnap(); 697 } else if (mFocusState == FOCUSING) { 698 // User is half-pressing the focus key. Play the focus tone. 699 // Do not take the picture now. 700 ToneGenerator tg = mFocusToneGenerator; 701 if (tg != null) { 702 tg.startTone(ToneGenerator.TONE_PROP_BEEP2); 703 } 704 if (focused) { 705 mFocusState = FOCUS_SUCCESS; 706 } else { 707 mFocusState = FOCUS_FAIL; 708 } 709 } else if (mFocusState == FOCUS_NOT_STARTED) { 710 // User has released the focus key before focus completes. 711 // Do nothing. 712 } 713 updateFocusIndicator(); 714 } 715 } 716 717 private static final class ErrorCallback 718 implements android.hardware.Camera.ErrorCallback { 719 public void onError(int error, android.hardware.Camera camera) { 720 if (error == android.hardware.Camera.CAMERA_ERROR_SERVER_DIED) { 721 mMediaServerDied = true; 722 Log.v(TAG, "media server died"); 723 } 724 } 725 } 726 727 private final class ZoomListener 728 implements android.hardware.Camera.OnZoomChangeListener { 729 public void onZoomChange( 730 int value, boolean stopped, android.hardware.Camera camera) { 731 Log.v(TAG, "Zoom changed: value=" + value + ". stopped="+ stopped); 732 mZoomValue = value; 733 // Keep mParameters up to date. We do not getParameter again in 734 // takePicture. If we do not do this, wrong zoom value will be set. 735 mParameters.setZoom(value); 736 // We only care if the zoom is stopped. mZooming is set to true when 737 // we start smooth zoom. 738 if (stopped && mZoomState != ZOOM_STOPPED) { 739 if (value != mTargetZoomValue) { 740 mCameraDevice.startSmoothZoom(mTargetZoomValue); 741 mZoomState = ZOOM_START; 742 } else { 743 mZoomState = ZOOM_STOPPED; 744 } 745 } 746 } 747 } 748 749 private class ImageCapture { 750 751 private Uri mLastContentUri; 752 753 byte[] mCaptureOnlyData; 754 755 // Returns the rotation degree in the jpeg header. 756 private int storeImage(byte[] data, Location loc) { 757 try { 758 long dateTaken = System.currentTimeMillis(); 759 String title = createName(dateTaken); 760 String filename = title + ".jpg"; 761 int[] degree = new int[1]; 762 mLastContentUri = ImageManager.addImage( 763 mContentResolver, 764 title, 765 dateTaken, 766 loc, // location from gps/network 767 ImageManager.CAMERA_IMAGE_BUCKET_NAME, filename, 768 null, data, 769 degree); 770 return degree[0]; 771 } catch (Exception ex) { 772 Log.e(TAG, "Exception while compressing image.", ex); 773 return 0; 774 } 775 } 776 777 public void storeImage(final byte[] data, 778 android.hardware.Camera camera, Location loc) { 779 if (!mIsImageCaptureIntent) { 780 int degree = storeImage(data, loc); 781 sendBroadcast(new Intent( 782 "com.android.camera.NEW_PICTURE", mLastContentUri)); 783 setLastPictureThumb(data, degree, 784 mImageCapture.getLastCaptureUri()); 785 mThumbController.updateDisplayIfNeeded(); 786 } else { 787 mCaptureOnlyData = data; 788 showPostCaptureAlert(); 789 } 790 } 791 792 /** 793 * Initiate the capture of an image. 794 */ 795 public void initiate() { 796 if (mCameraDevice == null) { 797 return; 798 } 799 800 capture(); 801 } 802 803 public Uri getLastCaptureUri() { 804 return mLastContentUri; 805 } 806 807 public byte[] getLastCaptureData() { 808 return mCaptureOnlyData; 809 } 810 811 private void capture() { 812 mCaptureOnlyData = null; 813 814 // Set rotation. 815 mParameters.setRotation(mLastOrientation); 816 817 // Clear previous GPS location from the parameters. 818 mParameters.removeGpsData(); 819 820 // We always encode GpsTimeStamp 821 mParameters.setGpsTimestamp(System.currentTimeMillis() / 1000); 822 823 // Set GPS location. 824 Location loc = mRecordLocation ? getCurrentLocation() : null; 825 if (loc != null) { 826 double lat = loc.getLatitude(); 827 double lon = loc.getLongitude(); 828 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 829 830 if (hasLatLon) { 831 mParameters.setGpsLatitude(lat); 832 mParameters.setGpsLongitude(lon); 833 mParameters.setGpsProcessingMethod(loc.getProvider().toUpperCase()); 834 if (loc.hasAltitude()) { 835 mParameters.setGpsAltitude(loc.getAltitude()); 836 } else { 837 // for NETWORK_PROVIDER location provider, we may have 838 // no altitude information, but the driver needs it, so 839 // we fake one. 840 mParameters.setGpsAltitude(0); 841 } 842 if (loc.getTime() != 0) { 843 // Location.getTime() is UTC in milliseconds. 844 // gps-timestamp is UTC in seconds. 845 long utcTimeSeconds = loc.getTime() / 1000; 846 mParameters.setGpsTimestamp(utcTimeSeconds); 847 } 848 } else { 849 loc = null; 850 } 851 } 852 853 mCameraDevice.setParameters(mParameters); 854 855 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 856 mPostViewPictureCallback, new JpegPictureCallback(loc)); 857 mPreviewing = false; 858 } 859 860 public void onSnap() { 861 // If we are already in the middle of taking a snapshot then ignore. 862 if (mPausing || mStatus == SNAPSHOT_IN_PROGRESS) { 863 return; 864 } 865 mCaptureStartTime = System.currentTimeMillis(); 866 mPostViewPictureCallbackTime = 0; 867 mHeadUpDisplay.setEnabled(false); 868 mStatus = SNAPSHOT_IN_PROGRESS; 869 870 mImageCapture.initiate(); 871 } 872 873 private void clearLastData() { 874 mCaptureOnlyData = null; 875 } 876 } 877 878 private boolean saveDataToFile(String filePath, byte[] data) { 879 FileOutputStream f = null; 880 try { 881 f = new FileOutputStream(filePath); 882 f.write(data); 883 } catch (IOException e) { 884 return false; 885 } finally { 886 MenuHelper.closeSilently(f); 887 } 888 return true; 889 } 890 891 private void setLastPictureThumb(byte[] data, int degree, Uri uri) { 892 BitmapFactory.Options options = new BitmapFactory.Options(); 893 options.inSampleSize = 16; 894 Bitmap lastPictureThumb = 895 BitmapFactory.decodeByteArray(data, 0, data.length, options); 896 lastPictureThumb = Util.rotate(lastPictureThumb, degree); 897 mThumbController.setData(uri, lastPictureThumb); 898 } 899 900 private String createName(long dateTaken) { 901 Date date = new Date(dateTaken); 902 SimpleDateFormat dateFormat = new SimpleDateFormat( 903 getString(R.string.image_file_name_format)); 904 905 return dateFormat.format(date); 906 } 907 908 @Override 909 public void onCreate(Bundle icicle) { 910 super.onCreate(icicle); 911 912 setContentView(R.layout.camera); 913 mSurfaceView = (SurfaceView) findViewById(R.id.camera_preview); 914 915 mPreferences = PreferenceManager.getDefaultSharedPreferences(this); 916 CameraSettings.upgradePreferences(mPreferences); 917 918 mQuickCapture = getQuickCaptureSettings(); 919 920 // we need to reset exposure for the preview 921 resetExposureCompensation(); 922 /* 923 * To reduce startup time, we start the preview in another thread. 924 * We make sure the preview is started at the end of onCreate. 925 */ 926 Thread startPreviewThread = new Thread(new Runnable() { 927 public void run() { 928 try { 929 mStartPreviewFail = false; 930 startPreview(); 931 } catch (CameraHardwareException e) { 932 // In eng build, we throw the exception so that test tool 933 // can detect it and report it 934 if ("eng".equals(Build.TYPE)) { 935 throw new RuntimeException(e); 936 } 937 mStartPreviewFail = true; 938 } 939 } 940 }); 941 startPreviewThread.start(); 942 943 // don't set mSurfaceHolder here. We have it set ONLY within 944 // surfaceChanged / surfaceDestroyed, other parts of the code 945 // assume that when it is set, the surface is also set. 946 SurfaceHolder holder = mSurfaceView.getHolder(); 947 holder.addCallback(this); 948 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 949 950 mIsImageCaptureIntent = isImageCaptureIntent(); 951 if (mIsImageCaptureIntent) { 952 setupCaptureParams(); 953 } 954 955 LayoutInflater inflater = getLayoutInflater(); 956 957 ViewGroup rootView = (ViewGroup) findViewById(R.id.camera); 958 mGLRootView = (GLRootView) findViewById(R.id.settings_ui); 959 960 if (mIsImageCaptureIntent) { 961 View controlBar = inflater.inflate( 962 R.layout.attach_camera_control, rootView); 963 controlBar.findViewById(R.id.btn_cancel).setOnClickListener(this); 964 controlBar.findViewById(R.id.btn_retake).setOnClickListener(this); 965 controlBar.findViewById(R.id.btn_done).setOnClickListener(this); 966 } else { 967 inflater.inflate(R.layout.camera_control, rootView); 968 mSwitcher = ((Switcher) findViewById(R.id.camera_switch)); 969 mSwitcher.setOnSwitchListener(this); 970 mSwitcher.addTouchView(findViewById(R.id.camera_switch_set)); 971 } 972 973 // Make sure preview is started. 974 try { 975 startPreviewThread.join(); 976 if (mStartPreviewFail) { 977 showCameraErrorAndFinish(); 978 return; 979 } 980 } catch (InterruptedException ex) { 981 // ignore 982 } 983 } 984 985 private void setOrientationIndicator(int degree) { 986 ((RotateImageView) findViewById( 987 R.id.review_thumbnail)).setDegree(degree); 988 ((RotateImageView) findViewById( 989 R.id.camera_switch_icon)).setDegree(degree); 990 ((RotateImageView) findViewById( 991 R.id.video_switch_icon)).setDegree(degree); 992 } 993 994 @Override 995 public void onStart() { 996 super.onStart(); 997 if (!mIsImageCaptureIntent) { 998 mSwitcher.setSwitch(SWITCH_CAMERA); 999 } 1000 } 1001 1002 @Override 1003 public void onStop() { 1004 super.onStop(); 1005 if (mMediaProviderClient != null) { 1006 mMediaProviderClient.release(); 1007 mMediaProviderClient = null; 1008 } 1009 } 1010 1011 private void checkStorage() { 1012 calculatePicturesRemaining(); 1013 updateStorageHint(mPicturesRemaining); 1014 } 1015 1016 public void onClick(View v) { 1017 switch (v.getId()) { 1018 case R.id.btn_retake: 1019 hidePostCaptureAlert(); 1020 restartPreview(); 1021 break; 1022 case R.id.review_thumbnail: 1023 if (isCameraIdle()) { 1024 viewLastImage(); 1025 } 1026 break; 1027 case R.id.btn_done: 1028 doAttach(); 1029 break; 1030 case R.id.btn_cancel: 1031 doCancel(); 1032 } 1033 } 1034 1035 private Bitmap createCaptureBitmap(byte[] data) { 1036 // This is really stupid...we just want to read the orientation in 1037 // the jpeg header. 1038 String filepath = ImageManager.getTempJpegPath(); 1039 int degree = 0; 1040 if (saveDataToFile(filepath, data)) { 1041 degree = ImageManager.getExifOrientation(filepath); 1042 new File(filepath).delete(); 1043 } 1044 1045 // Limit to 50k pixels so we can return it in the intent. 1046 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1047 bitmap = Util.rotate(bitmap, degree); 1048 return bitmap; 1049 } 1050 1051 private void doAttach() { 1052 if (mPausing) { 1053 return; 1054 } 1055 1056 byte[] data = mImageCapture.getLastCaptureData(); 1057 1058 if (mCropValue == null) { 1059 // First handle the no crop case -- just return the value. If the 1060 // caller specifies a "save uri" then write the data to it's 1061 // stream. Otherwise, pass back a scaled down version of the bitmap 1062 // directly in the extras. 1063 if (mSaveUri != null) { 1064 OutputStream outputStream = null; 1065 try { 1066 outputStream = mContentResolver.openOutputStream(mSaveUri); 1067 outputStream.write(data); 1068 outputStream.close(); 1069 1070 setResult(RESULT_OK); 1071 finish(); 1072 } catch (IOException ex) { 1073 // ignore exception 1074 } finally { 1075 Util.closeSilently(outputStream); 1076 } 1077 } else { 1078 Bitmap bitmap = createCaptureBitmap(data); 1079 setResult(RESULT_OK, 1080 new Intent("inline-data").putExtra("data", bitmap)); 1081 finish(); 1082 } 1083 } else { 1084 // Save the image to a temp file and invoke the cropper 1085 Uri tempUri = null; 1086 FileOutputStream tempStream = null; 1087 try { 1088 File path = getFileStreamPath(sTempCropFilename); 1089 path.delete(); 1090 tempStream = openFileOutput(sTempCropFilename, 0); 1091 tempStream.write(data); 1092 tempStream.close(); 1093 tempUri = Uri.fromFile(path); 1094 } catch (FileNotFoundException ex) { 1095 setResult(Activity.RESULT_CANCELED); 1096 finish(); 1097 return; 1098 } catch (IOException ex) { 1099 setResult(Activity.RESULT_CANCELED); 1100 finish(); 1101 return; 1102 } finally { 1103 Util.closeSilently(tempStream); 1104 } 1105 1106 Bundle newExtras = new Bundle(); 1107 if (mCropValue.equals("circle")) { 1108 newExtras.putString("circleCrop", "true"); 1109 } 1110 if (mSaveUri != null) { 1111 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1112 } else { 1113 newExtras.putBoolean("return-data", true); 1114 } 1115 1116 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1117 1118 cropIntent.setData(tempUri); 1119 cropIntent.putExtras(newExtras); 1120 1121 startActivityForResult(cropIntent, CROP_MSG); 1122 } 1123 } 1124 1125 private void doCancel() { 1126 setResult(RESULT_CANCELED, new Intent()); 1127 finish(); 1128 } 1129 1130 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1131 if (mPausing) { 1132 return; 1133 } 1134 switch (button.getId()) { 1135 case R.id.shutter_button: 1136 doFocus(pressed); 1137 break; 1138 } 1139 } 1140 1141 public void onShutterButtonClick(ShutterButton button) { 1142 if (mPausing) { 1143 return; 1144 } 1145 switch (button.getId()) { 1146 case R.id.shutter_button: 1147 doSnap(); 1148 break; 1149 } 1150 } 1151 1152 private OnScreenHint mStorageHint; 1153 1154 private void updateStorageHint(int remaining) { 1155 String noStorageText = null; 1156 1157 if (remaining == MenuHelper.NO_STORAGE_ERROR) { 1158 String state = Environment.getExternalStorageState(); 1159 if (state == Environment.MEDIA_CHECKING) { 1160 noStorageText = getString(R.string.preparing_sd); 1161 } else { 1162 noStorageText = getString(R.string.no_storage); 1163 } 1164 } else if (remaining < 1) { 1165 noStorageText = getString(R.string.not_enough_space); 1166 } 1167 1168 if (noStorageText != null) { 1169 if (mStorageHint == null) { 1170 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1171 } else { 1172 mStorageHint.setText(noStorageText); 1173 } 1174 mStorageHint.show(); 1175 } else if (mStorageHint != null) { 1176 mStorageHint.cancel(); 1177 mStorageHint = null; 1178 } 1179 } 1180 1181 private void installIntentFilter() { 1182 // install an intent filter to receive SD card related events. 1183 IntentFilter intentFilter = 1184 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1185 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1186 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1187 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1188 intentFilter.addDataScheme("file"); 1189 registerReceiver(mReceiver, intentFilter); 1190 mDidRegister = true; 1191 } 1192 1193 private void initializeFocusTone() { 1194 // Initialize focus tone generator. 1195 try { 1196 mFocusToneGenerator = new ToneGenerator( 1197 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1198 } catch (Throwable ex) { 1199 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1200 mFocusToneGenerator = null; 1201 } 1202 } 1203 1204 private void initializeScreenBrightness() { 1205 Window win = getWindow(); 1206 // Overright the brightness settings if it is automatic 1207 int mode = Settings.System.getInt( 1208 getContentResolver(), 1209 Settings.System.SCREEN_BRIGHTNESS_MODE, 1210 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); 1211 if (mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC) { 1212 WindowManager.LayoutParams winParams = win.getAttributes(); 1213 winParams.screenBrightness = DEFAULT_CAMERA_BRIGHTNESS; 1214 win.setAttributes(winParams); 1215 } 1216 } 1217 1218 @Override 1219 protected void onResume() { 1220 super.onResume(); 1221 mGLRootView.onResume(); 1222 1223 mPausing = false; 1224 mJpegPictureCallbackTime = 0; 1225 mZoomValue = 0; 1226 if (mHeadUpDisplay != null) { 1227 mHeadUpDisplay.setZoomIndex(mZoomValue); 1228 } 1229 mImageCapture = new ImageCapture(); 1230 1231 resetExposureCompensation(); 1232 1233 // Start the preview if it is not started. 1234 if (!mPreviewing && !mStartPreviewFail) { 1235 try { 1236 startPreview(); 1237 } catch (CameraHardwareException e) { 1238 showCameraErrorAndFinish(); 1239 return; 1240 } 1241 } 1242 1243 if (mSurfaceHolder != null) { 1244 // If first time initialization is not finished, put it in the 1245 // message queue. 1246 if (!mFirstTimeInitialized) { 1247 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1248 } else { 1249 initializeSecondTime(); 1250 } 1251 } 1252 keepScreenOnAwhile(); 1253 } 1254 1255 private static ImageManager.DataLocation dataLocation() { 1256 return ImageManager.DataLocation.EXTERNAL; 1257 } 1258 1259 @Override 1260 protected void onPause() { 1261 mPausing = true; 1262 stopPreview(); 1263 // Close the camera now because other activities may need to use it. 1264 closeCamera(); 1265 resetScreenOn(); 1266 1267 if (!isFinishing()) { 1268 mGLRootView.onPause(); 1269 if (mHeadUpDisplay != null) { 1270 mHeadUpDisplay.setGpsHasSignal(false); 1271 mHeadUpDisplay.collapse(); 1272 } 1273 } 1274 1275 if (mFirstTimeInitialized) { 1276 mOrientationListener.disable(); 1277 if (!mIsImageCaptureIntent) { 1278 mThumbController.storeData( 1279 ImageManager.getLastImageThumbPath()); 1280 } 1281 hidePostCaptureAlert(); 1282 } 1283 1284 if (mDidRegister) { 1285 unregisterReceiver(mReceiver); 1286 mDidRegister = false; 1287 } 1288 stopReceivingLocationUpdates(); 1289 1290 if (mFocusToneGenerator != null) { 1291 mFocusToneGenerator.release(); 1292 mFocusToneGenerator = null; 1293 } 1294 1295 if (mStorageHint != null) { 1296 mStorageHint.cancel(); 1297 mStorageHint = null; 1298 } 1299 1300 // If we are in an image capture intent and has taken 1301 // a picture, we just clear it in onPause. 1302 mImageCapture.clearLastData(); 1303 mImageCapture = null; 1304 1305 // Remove the messages in the event queue. 1306 mHandler.removeMessages(RESTART_PREVIEW); 1307 mHandler.removeMessages(FIRST_TIME_INIT); 1308 1309 super.onPause(); 1310 } 1311 1312 @Override 1313 protected void onActivityResult( 1314 int requestCode, int resultCode, Intent data) { 1315 switch (requestCode) { 1316 case CROP_MSG: { 1317 Intent intent = new Intent(); 1318 if (data != null) { 1319 Bundle extras = data.getExtras(); 1320 if (extras != null) { 1321 intent.putExtras(extras); 1322 } 1323 } 1324 setResult(resultCode, intent); 1325 finish(); 1326 1327 File path = getFileStreamPath(sTempCropFilename); 1328 path.delete(); 1329 1330 break; 1331 } 1332 } 1333 } 1334 1335 private boolean canTakePicture() { 1336 return isCameraIdle() && mPreviewing && (mPicturesRemaining > 0); 1337 } 1338 1339 private void autoFocus() { 1340 // Initiate autofocus only when preview is started and snapshot is not 1341 // in progress. 1342 if (canTakePicture()) { 1343 mHeadUpDisplay.setEnabled(false); 1344 Log.v(TAG, "Start autofocus."); 1345 mFocusStartTime = System.currentTimeMillis(); 1346 mFocusState = FOCUSING; 1347 updateFocusIndicator(); 1348 mCameraDevice.autoFocus(mAutoFocusCallback); 1349 } 1350 } 1351 1352 private void cancelAutoFocus() { 1353 // User releases half-pressed focus key. 1354 if (mFocusState == FOCUSING || mFocusState == FOCUS_SUCCESS 1355 || mFocusState == FOCUS_FAIL) { 1356 Log.v(TAG, "Cancel autofocus."); 1357 mHeadUpDisplay.setEnabled(true); 1358 mCameraDevice.cancelAutoFocus(); 1359 } 1360 if (mFocusState != FOCUSING_SNAP_ON_FINISH) { 1361 clearFocusState(); 1362 } 1363 } 1364 1365 private void clearFocusState() { 1366 mFocusState = FOCUS_NOT_STARTED; 1367 updateFocusIndicator(); 1368 } 1369 1370 private void updateFocusIndicator() { 1371 if (mFocusRectangle == null) return; 1372 1373 if (mFocusState == FOCUSING || mFocusState == FOCUSING_SNAP_ON_FINISH) { 1374 mFocusRectangle.showStart(); 1375 } else if (mFocusState == FOCUS_SUCCESS) { 1376 mFocusRectangle.showSuccess(); 1377 } else if (mFocusState == FOCUS_FAIL) { 1378 mFocusRectangle.showFail(); 1379 } else { 1380 mFocusRectangle.clear(); 1381 } 1382 } 1383 1384 @Override 1385 public void onBackPressed() { 1386 if (!isCameraIdle()) { 1387 // ignore backs while we're taking a picture 1388 return; 1389 } else if (mHeadUpDisplay == null || !mHeadUpDisplay.collapse()) { 1390 super.onBackPressed(); 1391 } 1392 } 1393 1394 @Override 1395 public boolean onKeyDown(int keyCode, KeyEvent event) { 1396 switch (keyCode) { 1397 case KeyEvent.KEYCODE_FOCUS: 1398 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1399 doFocus(true); 1400 } 1401 return true; 1402 case KeyEvent.KEYCODE_CAMERA: 1403 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1404 doSnap(); 1405 } 1406 return true; 1407 case KeyEvent.KEYCODE_DPAD_CENTER: 1408 // If we get a dpad center event without any focused view, move 1409 // the focus to the shutter button and press it. 1410 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1411 // Start auto-focus immediately to reduce shutter lag. After 1412 // the shutter button gets the focus, doFocus() will be 1413 // called again but it is fine. 1414 if (mHeadUpDisplay.collapse()) return true; 1415 doFocus(true); 1416 if (mShutterButton.isInTouchMode()) { 1417 mShutterButton.requestFocusFromTouch(); 1418 } else { 1419 mShutterButton.requestFocus(); 1420 } 1421 mShutterButton.setPressed(true); 1422 } 1423 return true; 1424 } 1425 1426 return super.onKeyDown(keyCode, event); 1427 } 1428 1429 @Override 1430 public boolean onKeyUp(int keyCode, KeyEvent event) { 1431 switch (keyCode) { 1432 case KeyEvent.KEYCODE_FOCUS: 1433 if (mFirstTimeInitialized) { 1434 doFocus(false); 1435 } 1436 return true; 1437 } 1438 return super.onKeyUp(keyCode, event); 1439 } 1440 1441 private void doSnap() { 1442 if (mHeadUpDisplay.collapse()) return; 1443 1444 Log.v(TAG, "doSnap: mFocusState=" + mFocusState); 1445 // If the user has half-pressed the shutter and focus is completed, we 1446 // can take the photo right away. If the focus mode is infinity, we can 1447 // also take the photo. 1448 if (mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1449 || (mFocusState == FOCUS_SUCCESS 1450 || mFocusState == FOCUS_FAIL)) { 1451 mImageCapture.onSnap(); 1452 } else if (mFocusState == FOCUSING) { 1453 // Half pressing the shutter (i.e. the focus button event) will 1454 // already have requested AF for us, so just request capture on 1455 // focus here. 1456 mFocusState = FOCUSING_SNAP_ON_FINISH; 1457 } else if (mFocusState == FOCUS_NOT_STARTED) { 1458 // Focus key down event is dropped for some reasons. Just ignore. 1459 } 1460 } 1461 1462 private void doFocus(boolean pressed) { 1463 // Do the focus if the mode is not infinity. 1464 if (mHeadUpDisplay.collapse()) return; 1465 if (!mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY)) { 1466 if (pressed) { // Focus key down. 1467 autoFocus(); 1468 } else { // Focus key up. 1469 cancelAutoFocus(); 1470 } 1471 } 1472 } 1473 1474 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1475 // Make sure we have a surface in the holder before proceeding. 1476 if (holder.getSurface() == null) { 1477 Log.d(TAG, "holder.getSurface() == null"); 1478 return; 1479 } 1480 1481 // We need to save the holder for later use, even when the mCameraDevice 1482 // is null. This could happen if onResume() is invoked after this 1483 // function. 1484 mSurfaceHolder = holder; 1485 1486 // The mCameraDevice will be null if it fails to connect to the camera 1487 // hardware. In this case we will show a dialog and then finish the 1488 // activity, so it's OK to ignore it. 1489 if (mCameraDevice == null) return; 1490 1491 // Sometimes surfaceChanged is called after onPause or before onResume. 1492 // Ignore it. 1493 if (mPausing || isFinishing()) return; 1494 1495 if (mPreviewing && holder.isCreating()) { 1496 // Set preview display if the surface is being created and preview 1497 // was already started. That means preview display was set to null 1498 // and we need to set it now. 1499 setPreviewDisplay(holder); 1500 } else { 1501 // 1. Restart the preview if the size of surface was changed. The 1502 // framework may not support changing preview display on the fly. 1503 // 2. Start the preview now if surface was destroyed and preview 1504 // stopped. 1505 restartPreview(); 1506 } 1507 1508 // If first time initialization is not finished, send a message to do 1509 // it later. We want to finish surfaceChanged as soon as possible to let 1510 // user see preview first. 1511 if (!mFirstTimeInitialized) { 1512 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1513 } else { 1514 initializeSecondTime(); 1515 } 1516 } 1517 1518 public void surfaceCreated(SurfaceHolder holder) { 1519 } 1520 1521 public void surfaceDestroyed(SurfaceHolder holder) { 1522 stopPreview(); 1523 mSurfaceHolder = null; 1524 } 1525 1526 private void closeCamera() { 1527 if (mCameraDevice != null) { 1528 CameraHolder.instance().release(); 1529 mCameraDevice.setZoomChangeListener(null); 1530 mCameraDevice = null; 1531 mPreviewing = false; 1532 } 1533 } 1534 1535 private void ensureCameraDevice() throws CameraHardwareException { 1536 if (mCameraDevice == null) { 1537 mCameraDevice = CameraHolder.instance().open(); 1538 mInitialParams = mCameraDevice.getParameters(); 1539 } 1540 } 1541 1542 private void updateLastImage() { 1543 IImageList list = ImageManager.makeImageList( 1544 mContentResolver, 1545 dataLocation(), 1546 ImageManager.INCLUDE_IMAGES, 1547 ImageManager.SORT_ASCENDING, 1548 ImageManager.CAMERA_IMAGE_BUCKET_ID); 1549 int count = list.getCount(); 1550 if (count > 0) { 1551 IImage image = list.getImageAt(count - 1); 1552 Uri uri = image.fullSizeImageUri(); 1553 mThumbController.setData(uri, image.miniThumbBitmap()); 1554 } else { 1555 mThumbController.setData(null, null); 1556 } 1557 list.close(); 1558 } 1559 1560 private void showCameraErrorAndFinish() { 1561 Resources ress = getResources(); 1562 Util.showFatalErrorAndFinish(Camera.this, 1563 ress.getString(R.string.camera_error_title), 1564 ress.getString(R.string.cannot_connect_camera)); 1565 } 1566 1567 private void restartPreview() { 1568 try { 1569 startPreview(); 1570 } catch (CameraHardwareException e) { 1571 showCameraErrorAndFinish(); 1572 return; 1573 } 1574 } 1575 1576 private void setPreviewDisplay(SurfaceHolder holder) { 1577 try { 1578 mCameraDevice.setPreviewDisplay(holder); 1579 } catch (Throwable ex) { 1580 closeCamera(); 1581 throw new RuntimeException("setPreviewDisplay failed", ex); 1582 } 1583 } 1584 1585 private void startPreview() throws CameraHardwareException { 1586 if (mPausing || isFinishing()) return; 1587 1588 ensureCameraDevice(); 1589 1590 // If we're previewing already, stop the preview first (this will blank 1591 // the screen). 1592 if (mPreviewing) stopPreview(); 1593 1594 setPreviewDisplay(mSurfaceHolder); 1595 setCameraParameters(UPDATE_PARAM_ALL); 1596 1597 final long wallTimeStart = SystemClock.elapsedRealtime(); 1598 final long threadTimeStart = Debug.threadCpuTimeNanos(); 1599 1600 mCameraDevice.setErrorCallback(mErrorCallback); 1601 1602 try { 1603 Log.v(TAG, "startPreview"); 1604 mCameraDevice.startPreview(); 1605 } catch (Throwable ex) { 1606 closeCamera(); 1607 throw new RuntimeException("startPreview failed", ex); 1608 } 1609 mPreviewing = true; 1610 mZoomState = ZOOM_STOPPED; 1611 mStatus = IDLE; 1612 } 1613 1614 private void stopPreview() { 1615 if (mCameraDevice != null && mPreviewing) { 1616 Log.v(TAG, "stopPreview"); 1617 mCameraDevice.stopPreview(); 1618 } 1619 mPreviewing = false; 1620 // If auto focus was in progress, it would have been canceled. 1621 clearFocusState(); 1622 } 1623 1624 private Size getOptimalPreviewSize(List<Size> sizes, double targetRatio) { 1625 final double ASPECT_TOLERANCE = 0.05; 1626 if (sizes == null) return null; 1627 1628 Size optimalSize = null; 1629 double minDiff = Double.MAX_VALUE; 1630 1631 // Because of bugs of overlay and layout, we sometimes will try to 1632 // layout the viewfinder in the portrait orientation and thus get the 1633 // wrong size of mSurfaceView. When we change the preview size, the 1634 // new overlay will be created before the old one closed, which causes 1635 // an exception. For now, just get the screen size 1636 1637 Display display = getWindowManager().getDefaultDisplay(); 1638 int targetHeight = Math.min(display.getHeight(), display.getWidth()); 1639 1640 if (targetHeight <= 0) { 1641 // We don't know the size of SurefaceView, use screen height 1642 WindowManager windowManager = (WindowManager) 1643 getSystemService(Context.WINDOW_SERVICE); 1644 targetHeight = windowManager.getDefaultDisplay().getHeight(); 1645 } 1646 1647 // Try to find an size match aspect ratio and size 1648 for (Size size : sizes) { 1649 double ratio = (double) size.width / size.height; 1650 if (Math.abs(ratio - targetRatio) > ASPECT_TOLERANCE) continue; 1651 if (Math.abs(size.height - targetHeight) < minDiff) { 1652 optimalSize = size; 1653 minDiff = Math.abs(size.height - targetHeight); 1654 } 1655 } 1656 1657 // Cannot find the one match the aspect ratio, ignore the requirement 1658 if (optimalSize == null) { 1659 Log.v(TAG, "No preview size match the aspect ratio"); 1660 minDiff = Double.MAX_VALUE; 1661 for (Size size : sizes) { 1662 if (Math.abs(size.height - targetHeight) < minDiff) { 1663 optimalSize = size; 1664 minDiff = Math.abs(size.height - targetHeight); 1665 } 1666 } 1667 } 1668 return optimalSize; 1669 } 1670 1671 private static boolean isSupported(String value, List<String> supported) { 1672 return supported == null ? false : supported.indexOf(value) >= 0; 1673 } 1674 1675 private void updateCameraParametersInitialize() { 1676 // Reset preview frame rate to the maximum because it may be lowered by 1677 // video camera application. 1678 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1679 if (frameRates != null) { 1680 Integer max = Collections.max(frameRates); 1681 mParameters.setPreviewFrameRate(max); 1682 } 1683 1684 } 1685 1686 private void updateCameraParametersZoom() { 1687 // Set zoom. 1688 if (mParameters.isZoomSupported()) { 1689 mParameters.setZoom(mZoomValue); 1690 } 1691 } 1692 1693 private void updateCameraParametersPreference() { 1694 // Set picture size. 1695 String pictureSize = mPreferences.getString( 1696 CameraSettings.KEY_PICTURE_SIZE, null); 1697 if (pictureSize == null) { 1698 CameraSettings.initialCameraPictureSize(this, mParameters); 1699 } else { 1700 List<Size> supported = mParameters.getSupportedPictureSizes(); 1701 CameraSettings.setCameraPictureSize( 1702 pictureSize, supported, mParameters); 1703 } 1704 1705 // Set the preview frame aspect ratio according to the picture size. 1706 Size size = mParameters.getPictureSize(); 1707 PreviewFrameLayout frameLayout = 1708 (PreviewFrameLayout) findViewById(R.id.frame_layout); 1709 frameLayout.setAspectRatio((double) size.width / size.height); 1710 1711 // Set a preview size that is closest to the viewfinder height and has 1712 // the right aspect ratio. 1713 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1714 Size optimalSize = getOptimalPreviewSize( 1715 sizes, (double) size.width / size.height); 1716 if (optimalSize != null) { 1717 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1718 } 1719 1720 // Since change scene mode may change supported values, 1721 // Set scene mode first, 1722 String sceneMode = mPreferences.getString( 1723 CameraSettings.KEY_SCENE_MODE, 1724 getString(R.string.pref_camera_scenemode_default)); 1725 if (isSupported(sceneMode, mParameters.getSupportedSceneModes())) { 1726 if (!mParameters.getSceneMode().equals(sceneMode)) { 1727 mParameters.setSceneMode(sceneMode); 1728 mCameraDevice.setParameters(mParameters); 1729 1730 // Setting scene mode will change the settings of flash mode, 1731 // white balance, and focus mode. Here we read back the 1732 // parameters, so we can know those settings. 1733 mParameters = mCameraDevice.getParameters(); 1734 } 1735 } else { 1736 sceneMode = mParameters.getSceneMode(); 1737 if (sceneMode == null) { 1738 sceneMode = Parameters.SCENE_MODE_AUTO; 1739 } 1740 } 1741 1742 // Set JPEG quality. 1743 String jpegQuality = mPreferences.getString( 1744 CameraSettings.KEY_JPEG_QUALITY, 1745 getString(R.string.pref_camera_jpegquality_default)); 1746 mParameters.setJpegQuality(JpegEncodingQualityMappings.getQualityNumber(jpegQuality)); 1747 1748 // For the following settings, we need to check if the settings are 1749 // still supported by latest driver, if not, ignore the settings. 1750 1751 // Set color effect parameter. 1752 String colorEffect = mPreferences.getString( 1753 CameraSettings.KEY_COLOR_EFFECT, 1754 getString(R.string.pref_camera_coloreffect_default)); 1755 if (isSupported(colorEffect, mParameters.getSupportedColorEffects())) { 1756 mParameters.setColorEffect(colorEffect); 1757 } 1758 1759 // Set exposure compensation 1760 String exposure = mPreferences.getString( 1761 CameraSettings.KEY_EXPOSURE, 1762 getString(R.string.pref_exposure_default)); 1763 try { 1764 int value = Integer.parseInt(exposure); 1765 int max = mParameters.getMaxExposureCompensation(); 1766 int min = mParameters.getMinExposureCompensation(); 1767 if (value >= min && value <= max) { 1768 mParameters.setExposureCompensation(value); 1769 } else { 1770 Log.w(TAG, "invalid exposure range: " + exposure); 1771 } 1772 } catch (NumberFormatException e) { 1773 Log.w(TAG, "invalid exposure: " + exposure); 1774 } 1775 1776 // If scene mode is set, we cannot set flash mode, white balance, and 1777 // focus mode, instead, we read it from driver 1778 if (!Parameters.SCENE_MODE_AUTO.equals(sceneMode)) { 1779 final String flashMode = mParameters.getFlashMode(); 1780 final String whiteBalance = mParameters.getWhiteBalance(); 1781 mFocusMode = mParameters.getFocusMode(); 1782 1783 if (mHeadUpDisplay != null) { 1784 mGLRootView.queueEvent(new Runnable() { 1785 public void run() { 1786 mHeadUpDisplay.overrideSettings( 1787 CameraSettings.KEY_FLASH_MODE, flashMode); 1788 mHeadUpDisplay.overrideSettings( 1789 CameraSettings.KEY_WHITE_BALANCE, whiteBalance); 1790 mHeadUpDisplay.overrideSettings( 1791 CameraSettings.KEY_FOCUS_MODE, mFocusMode); 1792 }}); 1793 } 1794 } else { 1795 if (mHeadUpDisplay != null) { 1796 mGLRootView.queueEvent(new Runnable() { 1797 public void run() { 1798 mHeadUpDisplay.overrideSettings( 1799 CameraSettings.KEY_FLASH_MODE, null); 1800 mHeadUpDisplay.overrideSettings( 1801 CameraSettings.KEY_FOCUS_MODE, null); 1802 mHeadUpDisplay.overrideSettings( 1803 CameraSettings.KEY_WHITE_BALANCE, null); 1804 }}); 1805 } 1806 1807 // Set flash mode. 1808 String flashMode = mPreferences.getString( 1809 CameraSettings.KEY_FLASH_MODE, 1810 getString(R.string.pref_camera_flashmode_default)); 1811 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 1812 if (isSupported(flashMode, supportedFlash)) { 1813 mParameters.setFlashMode(flashMode); 1814 } else { 1815 flashMode = mParameters.getFlashMode(); 1816 if (flashMode == null) { 1817 flashMode = getString( 1818 R.string.pref_camera_flashmode_no_flash); 1819 } 1820 } 1821 1822 // Set white balance parameter. 1823 String whiteBalance = mPreferences.getString( 1824 CameraSettings.KEY_WHITE_BALANCE, 1825 getString(R.string.pref_camera_whitebalance_default)); 1826 if (isSupported(whiteBalance, 1827 mParameters.getSupportedWhiteBalance())) { 1828 mParameters.setWhiteBalance(whiteBalance); 1829 } else { 1830 whiteBalance = mParameters.getWhiteBalance(); 1831 if (whiteBalance == null) { 1832 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 1833 } 1834 } 1835 1836 // Set focus mode. 1837 mFocusMode = mPreferences.getString( 1838 CameraSettings.KEY_FOCUS_MODE, 1839 getString(R.string.pref_camera_focusmode_default)); 1840 if (isSupported(mFocusMode, mParameters.getSupportedFocusModes())) { 1841 mParameters.setFocusMode(mFocusMode); 1842 } else { 1843 mFocusMode = mParameters.getFocusMode(); 1844 if (mFocusMode == null) { 1845 mFocusMode = Parameters.FOCUS_MODE_AUTO; 1846 } 1847 } 1848 } 1849 } 1850 1851 // We separate the parameters into several subsets, so we can update only 1852 // the subsets actually need updating. The PREFERENCE set needs extra 1853 // locking because the preference can be changed from GLThread as well. 1854 private void setCameraParameters(int updateSet) { 1855 mParameters = mCameraDevice.getParameters(); 1856 1857 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 1858 updateCameraParametersInitialize(); 1859 } 1860 1861 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 1862 updateCameraParametersZoom(); 1863 } 1864 1865 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 1866 synchronized (mPreferences) { 1867 updateCameraParametersPreference(); 1868 } 1869 } 1870 1871 mCameraDevice.setParameters(mParameters); 1872 } 1873 1874 // If the Camera is idle, update the parameters immediately, otherwise 1875 // accumulate them in mUpdateSet and update later. 1876 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 1877 mUpdateSet |= additionalUpdateSet; 1878 if (mCameraDevice == null) { 1879 // We will update all the parameters when we open the device, so 1880 // we don't need to do anything now. 1881 mUpdateSet = 0; 1882 return; 1883 } else if (isCameraIdle()) { 1884 setCameraParameters(mUpdateSet); 1885 mUpdateSet = 0; 1886 } else { 1887 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 1888 mHandler.sendEmptyMessageDelayed( 1889 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 1890 } 1891 } 1892 } 1893 1894 private void gotoGallery() { 1895 MenuHelper.gotoCameraImageGallery(this); 1896 } 1897 1898 private void viewLastImage() { 1899 if (mThumbController.isUriValid()) { 1900 Intent intent = new Intent(Util.REVIEW_ACTION, mThumbController.getUri()); 1901 try { 1902 startActivity(intent); 1903 } catch (ActivityNotFoundException ex) { 1904 Log.e(TAG, "review image fail", ex); 1905 } 1906 } else { 1907 Log.e(TAG, "Can't view last image."); 1908 } 1909 } 1910 1911 private void startReceivingLocationUpdates() { 1912 if (mLocationManager != null) { 1913 try { 1914 mLocationManager.requestLocationUpdates( 1915 LocationManager.NETWORK_PROVIDER, 1916 1000, 1917 0F, 1918 mLocationListeners[1]); 1919 } catch (java.lang.SecurityException ex) { 1920 Log.i(TAG, "fail to request location update, ignore", ex); 1921 } catch (IllegalArgumentException ex) { 1922 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1923 } 1924 try { 1925 mLocationManager.requestLocationUpdates( 1926 LocationManager.GPS_PROVIDER, 1927 1000, 1928 0F, 1929 mLocationListeners[0]); 1930 } catch (java.lang.SecurityException ex) { 1931 Log.i(TAG, "fail to request location update, ignore", ex); 1932 } catch (IllegalArgumentException ex) { 1933 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1934 } 1935 } 1936 } 1937 1938 private void stopReceivingLocationUpdates() { 1939 if (mLocationManager != null) { 1940 for (int i = 0; i < mLocationListeners.length; i++) { 1941 try { 1942 mLocationManager.removeUpdates(mLocationListeners[i]); 1943 } catch (Exception ex) { 1944 Log.i(TAG, "fail to remove location listners, ignore", ex); 1945 } 1946 } 1947 } 1948 } 1949 1950 private Location getCurrentLocation() { 1951 // go in best to worst order 1952 for (int i = 0; i < mLocationListeners.length; i++) { 1953 Location l = mLocationListeners[i].current(); 1954 if (l != null) return l; 1955 } 1956 return null; 1957 } 1958 1959 private boolean isCameraIdle() { 1960 return mStatus == IDLE && mFocusState == FOCUS_NOT_STARTED; 1961 } 1962 1963 private boolean isImageCaptureIntent() { 1964 String action = getIntent().getAction(); 1965 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 1966 } 1967 1968 private void setupCaptureParams() { 1969 Bundle myExtras = getIntent().getExtras(); 1970 if (myExtras != null) { 1971 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 1972 mCropValue = myExtras.getString("crop"); 1973 } 1974 } 1975 1976 private void showPostCaptureAlert() { 1977 if (mIsImageCaptureIntent) { 1978 findViewById(R.id.shutter_button).setVisibility(View.INVISIBLE); 1979 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1980 for (int id : pickIds) { 1981 View button = findViewById(id); 1982 ((View) button.getParent()).setVisibility(View.VISIBLE); 1983 } 1984 } 1985 } 1986 1987 private void hidePostCaptureAlert() { 1988 if (mIsImageCaptureIntent) { 1989 findViewById(R.id.shutter_button).setVisibility(View.VISIBLE); 1990 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1991 for (int id : pickIds) { 1992 View button = findViewById(id); 1993 ((View) button.getParent()).setVisibility(View.GONE); 1994 } 1995 } 1996 } 1997 1998 private int calculatePicturesRemaining() { 1999 mPicturesRemaining = MenuHelper.calculatePicturesRemaining(); 2000 return mPicturesRemaining; 2001 } 2002 2003 @Override 2004 public boolean onPrepareOptionsMenu(Menu menu) { 2005 super.onPrepareOptionsMenu(menu); 2006 // Only show the menu when camera is idle. 2007 for (int i = 0; i < menu.size(); i++) { 2008 menu.getItem(i).setVisible(isCameraIdle()); 2009 } 2010 2011 return true; 2012 } 2013 2014 @Override 2015 public boolean onCreateOptionsMenu(Menu menu) { 2016 super.onCreateOptionsMenu(menu); 2017 2018 if (mIsImageCaptureIntent) { 2019 // No options menu for attach mode. 2020 return false; 2021 } else { 2022 addBaseMenuItems(menu); 2023 } 2024 return true; 2025 } 2026 2027 private void addBaseMenuItems(Menu menu) { 2028 MenuHelper.addSwitchModeMenuItem(menu, true, new Runnable() { 2029 public void run() { 2030 switchToVideoMode(); 2031 } 2032 }); 2033 MenuItem gallery = menu.add(Menu.NONE, Menu.NONE, 2034 MenuHelper.POSITION_GOTO_GALLERY, 2035 R.string.camera_gallery_photos_text) 2036 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2037 public boolean onMenuItemClick(MenuItem item) { 2038 gotoGallery(); 2039 return true; 2040 } 2041 }); 2042 gallery.setIcon(android.R.drawable.ic_menu_gallery); 2043 mGalleryItems.add(gallery); 2044 } 2045 2046 private boolean switchToVideoMode() { 2047 if (isFinishing() || !isCameraIdle()) return false; 2048 MenuHelper.gotoVideoMode(this); 2049 ((ViewGroup) mGLRootView.getParent()).removeView(mGLRootView); 2050 mHandler.removeMessages(FIRST_TIME_INIT); 2051 finish(); 2052 return true; 2053 } 2054 2055 public boolean onSwitchChanged(Switcher source, boolean onOff) { 2056 if (onOff == SWITCH_VIDEO) { 2057 return switchToVideoMode(); 2058 } else { 2059 return true; 2060 } 2061 } 2062 2063 private void onSharedPreferenceChanged() { 2064 // ignore the events after "onPause()" 2065 if (mPausing) return; 2066 2067 boolean recordLocation; 2068 2069 synchronized (mPreferences) { 2070 recordLocation = RecordLocationPreference.get( 2071 mPreferences, getContentResolver()); 2072 mQuickCapture = getQuickCaptureSettings(); 2073 } 2074 2075 if (mRecordLocation != recordLocation) { 2076 if (mRecordLocation) { 2077 startReceivingLocationUpdates(); 2078 } else { 2079 stopReceivingLocationUpdates(); 2080 } 2081 } 2082 2083 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 2084 } 2085 2086 private boolean getQuickCaptureSettings() { 2087 String value = mPreferences.getString( 2088 CameraSettings.KEY_QUICK_CAPTURE, 2089 getString(R.string.pref_camera_quickcapture_default)); 2090 return CameraSettings.QUICK_CAPTURE_ON.equals(value); 2091 } 2092 2093 @Override 2094 public void onUserInteraction() { 2095 super.onUserInteraction(); 2096 keepScreenOnAwhile(); 2097 } 2098 2099 private void resetScreenOn() { 2100 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2101 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2102 } 2103 2104 private void keepScreenOnAwhile() { 2105 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2106 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2107 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2108 } 2109 2110 private class MyHeadUpDisplayListener implements HeadUpDisplay.Listener { 2111 2112 // The callback functions here will be called from the GLThread. So, 2113 // we need to post these runnables to the main thread 2114 public void onSharedPreferencesChanged() { 2115 mHandler.post(new Runnable() { 2116 public void run() { 2117 Camera.this.onSharedPreferenceChanged(); 2118 } 2119 }); 2120 } 2121 2122 public void onRestorePreferencesClicked() { 2123 mHandler.post(new Runnable() { 2124 public void run() { 2125 Camera.this.onRestorePreferencesClicked(); 2126 } 2127 }); 2128 } 2129 2130 public void onPopupWindowVisibilityChanged(int visibility) { 2131 } 2132 } 2133 2134 protected void onRestorePreferencesClicked() { 2135 if (mPausing) return; 2136 Runnable runnable = new Runnable() { 2137 public void run() { 2138 mHeadUpDisplay.restorePreferences(mParameters); 2139 } 2140 }; 2141 MenuHelper.confirmAction(this, 2142 getString(R.string.confirm_restore_title), 2143 getString(R.string.confirm_restore_message), 2144 runnable); 2145 } 2146} 2147 2148class FocusRectangle extends View { 2149 2150 @SuppressWarnings("unused") 2151 private static final String TAG = "FocusRectangle"; 2152 2153 public FocusRectangle(Context context, AttributeSet attrs) { 2154 super(context, attrs); 2155 } 2156 2157 private void setDrawable(int resid) { 2158 setBackgroundDrawable(getResources().getDrawable(resid)); 2159 } 2160 2161 public void showStart() { 2162 setDrawable(R.drawable.focus_focusing); 2163 } 2164 2165 public void showSuccess() { 2166 setDrawable(R.drawable.focus_focused); 2167 } 2168 2169 public void showFail() { 2170 setDrawable(R.drawable.focus_focus_failed); 2171 } 2172 2173 public void clear() { 2174 setBackgroundDrawable(null); 2175 } 2176} 2177 2178/* 2179 * Provide a mapping for Jpeg encoding quality levels 2180 * from String representation to numeric representation. 2181 */ 2182class JpegEncodingQualityMappings { 2183 private static final String TAG = "JpegEncodingQualityMappings"; 2184 private static final int DEFAULT_QUALITY = 85; 2185 private static HashMap<String, Integer> mHashMap = 2186 new HashMap<String, Integer>(); 2187 2188 static { 2189 mHashMap.put("normal", CameraProfile.QUALITY_LOW); 2190 mHashMap.put("fine", CameraProfile.QUALITY_MEDIUM); 2191 mHashMap.put("superfine", CameraProfile.QUALITY_HIGH); 2192 }; 2193 2194 // Retrieve and return the Jpeg encoding quality number 2195 // for the given quality level. 2196 public static int getQualityNumber(String jpegQuality) { 2197 Integer quality = mHashMap.get(jpegQuality); 2198 if (quality == null) { 2199 Log.w(TAG, "Unknown Jpeg quality: " + jpegQuality); 2200 return DEFAULT_QUALITY; 2201 } 2202 return CameraProfile.getJpegEncodingQualityParameter(quality.intValue()); 2203 } 2204} 2205