Camera.java revision c8e13fecea56e679418f41ba454f867c49f888aa
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 < 1) { 1212 noStorageText = getString(R.string.not_enough_space); 1213 } 1214 1215 if (noStorageText != null) { 1216 if (mStorageHint == null) { 1217 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1218 } else { 1219 mStorageHint.setText(noStorageText); 1220 } 1221 mStorageHint.show(); 1222 } else if (mStorageHint != null) { 1223 mStorageHint.cancel(); 1224 mStorageHint = null; 1225 } 1226 } 1227 1228 private void installIntentFilter() { 1229 // install an intent filter to receive SD card related events. 1230 IntentFilter intentFilter = 1231 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1232 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1233 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1234 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1235 intentFilter.addDataScheme("file"); 1236 registerReceiver(mReceiver, intentFilter); 1237 mDidRegister = true; 1238 } 1239 1240 private void initializeFocusTone() { 1241 // Initialize focus tone generator. 1242 try { 1243 mFocusToneGenerator = new ToneGenerator( 1244 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1245 } catch (Throwable ex) { 1246 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1247 mFocusToneGenerator = null; 1248 } 1249 } 1250 1251 private void initializeScreenBrightness() { 1252 Window win = getWindow(); 1253 // Overright the brightness settings if it is automatic 1254 int mode = Settings.System.getInt( 1255 getContentResolver(), 1256 Settings.System.SCREEN_BRIGHTNESS_MODE, 1257 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); 1258 if (mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC) { 1259 WindowManager.LayoutParams winParams = win.getAttributes(); 1260 winParams.screenBrightness = DEFAULT_CAMERA_BRIGHTNESS; 1261 win.setAttributes(winParams); 1262 } 1263 } 1264 1265 @Override 1266 protected void onResume() { 1267 super.onResume(); 1268 1269 mPausing = false; 1270 mJpegPictureCallbackTime = 0; 1271 mZoomValue = 0; 1272 mImageCapture = new ImageCapture(); 1273 1274 // Start the preview if it is not started. 1275 if (!mPreviewing && !mStartPreviewFail) { 1276 resetExposureCompensation(); 1277 try { 1278 startPreview(); 1279 } catch (CameraHardwareException e) { 1280 showCameraErrorAndFinish(); 1281 return; 1282 } 1283 } 1284 1285 if (mSurfaceHolder != null) { 1286 // If first time initialization is not finished, put it in the 1287 // message queue. 1288 if (!mFirstTimeInitialized) { 1289 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1290 } else { 1291 initializeSecondTime(); 1292 } 1293 } 1294 keepScreenOnAwhile(); 1295 } 1296 1297 @Override 1298 public void onConfigurationChanged(Configuration config) { 1299 super.onConfigurationChanged(config); 1300 changeHeadUpDisplayState(); 1301 } 1302 1303 private static ImageManager.DataLocation dataLocation() { 1304 return ImageManager.DataLocation.EXTERNAL; 1305 } 1306 1307 @Override 1308 protected void onPause() { 1309 mPausing = true; 1310 stopPreview(); 1311 // Close the camera now because other activities may need to use it. 1312 closeCamera(); 1313 resetScreenOn(); 1314 changeHeadUpDisplayState(); 1315 1316 if (mFirstTimeInitialized) { 1317 mOrientationListener.disable(); 1318 if (!mIsImageCaptureIntent) { 1319 mThumbController.storeData( 1320 ImageManager.getLastImageThumbPath()); 1321 } 1322 hidePostCaptureAlert(); 1323 } 1324 1325 if (mDidRegister) { 1326 unregisterReceiver(mReceiver); 1327 mDidRegister = false; 1328 } 1329 stopReceivingLocationUpdates(); 1330 1331 if (mFocusToneGenerator != null) { 1332 mFocusToneGenerator.release(); 1333 mFocusToneGenerator = null; 1334 } 1335 1336 if (mStorageHint != null) { 1337 mStorageHint.cancel(); 1338 mStorageHint = null; 1339 } 1340 1341 // If we are in an image capture intent and has taken 1342 // a picture, we just clear it in onPause. 1343 mImageCapture.clearLastData(); 1344 mImageCapture = null; 1345 1346 // Remove the messages in the event queue. 1347 mHandler.removeMessages(RESTART_PREVIEW); 1348 mHandler.removeMessages(FIRST_TIME_INIT); 1349 1350 super.onPause(); 1351 } 1352 1353 @Override 1354 protected void onActivityResult( 1355 int requestCode, int resultCode, Intent data) { 1356 switch (requestCode) { 1357 case CROP_MSG: { 1358 Intent intent = new Intent(); 1359 if (data != null) { 1360 Bundle extras = data.getExtras(); 1361 if (extras != null) { 1362 intent.putExtras(extras); 1363 } 1364 } 1365 setResult(resultCode, intent); 1366 finish(); 1367 1368 File path = getFileStreamPath(sTempCropFilename); 1369 path.delete(); 1370 1371 break; 1372 } 1373 } 1374 } 1375 1376 private boolean canTakePicture() { 1377 return isCameraIdle() && mPreviewing && (mPicturesRemaining > 0); 1378 } 1379 1380 private void autoFocus() { 1381 // Initiate autofocus only when preview is started and snapshot is not 1382 // in progress. 1383 if (canTakePicture()) { 1384 mHeadUpDisplay.setEnabled(false); 1385 Log.v(TAG, "Start autofocus."); 1386 mFocusStartTime = System.currentTimeMillis(); 1387 mFocusState = FOCUSING; 1388 updateFocusIndicator(); 1389 mCameraDevice.autoFocus(mAutoFocusCallback); 1390 } 1391 } 1392 1393 private void cancelAutoFocus() { 1394 // User releases half-pressed focus key. 1395 if (mFocusState == FOCUSING || mFocusState == FOCUS_SUCCESS 1396 || mFocusState == FOCUS_FAIL) { 1397 Log.v(TAG, "Cancel autofocus."); 1398 mHeadUpDisplay.setEnabled(true); 1399 mCameraDevice.cancelAutoFocus(); 1400 } 1401 if (mFocusState != FOCUSING_SNAP_ON_FINISH) { 1402 clearFocusState(); 1403 } 1404 } 1405 1406 private void clearFocusState() { 1407 mFocusState = FOCUS_NOT_STARTED; 1408 updateFocusIndicator(); 1409 } 1410 1411 private void updateFocusIndicator() { 1412 if (mFocusRectangle == null) return; 1413 1414 if (mFocusState == FOCUSING || mFocusState == FOCUSING_SNAP_ON_FINISH) { 1415 mFocusRectangle.showStart(); 1416 } else if (mFocusState == FOCUS_SUCCESS) { 1417 mFocusRectangle.showSuccess(); 1418 } else if (mFocusState == FOCUS_FAIL) { 1419 mFocusRectangle.showFail(); 1420 } else { 1421 mFocusRectangle.clear(); 1422 } 1423 } 1424 1425 @Override 1426 public void onBackPressed() { 1427 if (!isCameraIdle()) { 1428 // ignore backs while we're taking a picture 1429 return; 1430 } else if (mHeadUpDisplay == null || !mHeadUpDisplay.collapse()) { 1431 super.onBackPressed(); 1432 } 1433 } 1434 1435 @Override 1436 public boolean onKeyDown(int keyCode, KeyEvent event) { 1437 switch (keyCode) { 1438 case KeyEvent.KEYCODE_FOCUS: 1439 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1440 doFocus(true); 1441 } 1442 return true; 1443 case KeyEvent.KEYCODE_CAMERA: 1444 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1445 doSnap(); 1446 } 1447 return true; 1448 case KeyEvent.KEYCODE_DPAD_CENTER: 1449 // If we get a dpad center event without any focused view, move 1450 // the focus to the shutter button and press it. 1451 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1452 // Start auto-focus immediately to reduce shutter lag. After 1453 // the shutter button gets the focus, doFocus() will be 1454 // called again but it is fine. 1455 if (mHeadUpDisplay.collapse()) return true; 1456 doFocus(true); 1457 if (mShutterButton.isInTouchMode()) { 1458 mShutterButton.requestFocusFromTouch(); 1459 } else { 1460 mShutterButton.requestFocus(); 1461 } 1462 mShutterButton.setPressed(true); 1463 } 1464 return true; 1465 } 1466 1467 return super.onKeyDown(keyCode, event); 1468 } 1469 1470 @Override 1471 public boolean onKeyUp(int keyCode, KeyEvent event) { 1472 switch (keyCode) { 1473 case KeyEvent.KEYCODE_FOCUS: 1474 if (mFirstTimeInitialized) { 1475 doFocus(false); 1476 } 1477 return true; 1478 } 1479 return super.onKeyUp(keyCode, event); 1480 } 1481 1482 private void doSnap() { 1483 if (mHeadUpDisplay.collapse()) return; 1484 1485 Log.v(TAG, "doSnap: mFocusState=" + mFocusState); 1486 // If the user has half-pressed the shutter and focus is completed, we 1487 // can take the photo right away. If the focus mode is infinity, we can 1488 // also take the photo. 1489 if (mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1490 || (mFocusState == FOCUS_SUCCESS 1491 || mFocusState == FOCUS_FAIL)) { 1492 mImageCapture.onSnap(); 1493 } else if (mFocusState == FOCUSING) { 1494 // Half pressing the shutter (i.e. the focus button event) will 1495 // already have requested AF for us, so just request capture on 1496 // focus here. 1497 mFocusState = FOCUSING_SNAP_ON_FINISH; 1498 } else if (mFocusState == FOCUS_NOT_STARTED) { 1499 // Focus key down event is dropped for some reasons. Just ignore. 1500 } 1501 } 1502 1503 private void doFocus(boolean pressed) { 1504 // Do the focus if the mode is not infinity. 1505 if (mHeadUpDisplay.collapse()) return; 1506 if (!mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY)) { 1507 if (pressed) { // Focus key down. 1508 autoFocus(); 1509 } else { // Focus key up. 1510 cancelAutoFocus(); 1511 } 1512 } 1513 } 1514 1515 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1516 // Make sure we have a surface in the holder before proceeding. 1517 if (holder.getSurface() == null) { 1518 Log.d(TAG, "holder.getSurface() == null"); 1519 return; 1520 } 1521 1522 // We need to save the holder for later use, even when the mCameraDevice 1523 // is null. This could happen if onResume() is invoked after this 1524 // function. 1525 mSurfaceHolder = holder; 1526 1527 // The mCameraDevice will be null if it fails to connect to the camera 1528 // hardware. In this case we will show a dialog and then finish the 1529 // activity, so it's OK to ignore it. 1530 if (mCameraDevice == null) return; 1531 1532 // Sometimes surfaceChanged is called after onPause or before onResume. 1533 // Ignore it. 1534 if (mPausing || isFinishing()) return; 1535 1536 if (mPreviewing && holder.isCreating()) { 1537 // Set preview display if the surface is being created and preview 1538 // was already started. That means preview display was set to null 1539 // and we need to set it now. 1540 setPreviewDisplay(holder); 1541 } else { 1542 // 1. Restart the preview if the size of surface was changed. The 1543 // framework may not support changing preview display on the fly. 1544 // 2. Start the preview now if surface was destroyed and preview 1545 // stopped. 1546 restartPreview(); 1547 } 1548 1549 // If first time initialization is not finished, send a message to do 1550 // it later. We want to finish surfaceChanged as soon as possible to let 1551 // user see preview first. 1552 if (!mFirstTimeInitialized) { 1553 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1554 } else { 1555 initializeSecondTime(); 1556 } 1557 } 1558 1559 public void surfaceCreated(SurfaceHolder holder) { 1560 } 1561 1562 public void surfaceDestroyed(SurfaceHolder holder) { 1563 stopPreview(); 1564 mSurfaceHolder = null; 1565 } 1566 1567 private void closeCamera() { 1568 if (mCameraDevice != null) { 1569 CameraHolder.instance().release(); 1570 mCameraDevice.setZoomChangeListener(null); 1571 mCameraDevice = null; 1572 mPreviewing = false; 1573 } 1574 } 1575 1576 private void ensureCameraDevice() throws CameraHardwareException { 1577 if (mCameraDevice == null) { 1578 mCameraDevice = CameraHolder.instance().open(); 1579 mInitialParams = mCameraDevice.getParameters(); 1580 } 1581 } 1582 1583 private void updateLastImage() { 1584 IImageList list = ImageManager.makeImageList( 1585 mContentResolver, 1586 dataLocation(), 1587 ImageManager.INCLUDE_IMAGES, 1588 ImageManager.SORT_ASCENDING, 1589 ImageManager.CAMERA_IMAGE_BUCKET_ID); 1590 int count = list.getCount(); 1591 if (count > 0) { 1592 IImage image = list.getImageAt(count - 1); 1593 Uri uri = image.fullSizeImageUri(); 1594 mThumbController.setData(uri, image.miniThumbBitmap()); 1595 } else { 1596 mThumbController.setData(null, null); 1597 } 1598 list.close(); 1599 } 1600 1601 private void showCameraErrorAndFinish() { 1602 Resources ress = getResources(); 1603 Util.showFatalErrorAndFinish(Camera.this, 1604 ress.getString(R.string.camera_error_title), 1605 ress.getString(R.string.cannot_connect_camera)); 1606 } 1607 1608 private void restartPreview() { 1609 try { 1610 startPreview(); 1611 } catch (CameraHardwareException e) { 1612 showCameraErrorAndFinish(); 1613 return; 1614 } 1615 } 1616 1617 private void setPreviewDisplay(SurfaceHolder holder) { 1618 try { 1619 mCameraDevice.setPreviewDisplay(holder); 1620 } catch (Throwable ex) { 1621 closeCamera(); 1622 throw new RuntimeException("setPreviewDisplay failed", ex); 1623 } 1624 } 1625 1626 private void startPreview() throws CameraHardwareException { 1627 if (mPausing || isFinishing()) return; 1628 1629 ensureCameraDevice(); 1630 1631 // If we're previewing already, stop the preview first (this will blank 1632 // the screen). 1633 if (mPreviewing) stopPreview(); 1634 1635 setPreviewDisplay(mSurfaceHolder); 1636 setCameraParameters(UPDATE_PARAM_ALL); 1637 1638 final long wallTimeStart = SystemClock.elapsedRealtime(); 1639 final long threadTimeStart = Debug.threadCpuTimeNanos(); 1640 1641 mCameraDevice.setErrorCallback(mErrorCallback); 1642 1643 try { 1644 Log.v(TAG, "startPreview"); 1645 mCameraDevice.startPreview(); 1646 } catch (Throwable ex) { 1647 closeCamera(); 1648 throw new RuntimeException("startPreview failed", ex); 1649 } 1650 mPreviewing = true; 1651 mZoomState = ZOOM_STOPPED; 1652 mStatus = IDLE; 1653 } 1654 1655 private void stopPreview() { 1656 if (mCameraDevice != null && mPreviewing) { 1657 Log.v(TAG, "stopPreview"); 1658 mCameraDevice.stopPreview(); 1659 } 1660 mPreviewing = false; 1661 // If auto focus was in progress, it would have been canceled. 1662 clearFocusState(); 1663 } 1664 1665 private Size getOptimalPreviewSize(List<Size> sizes, double targetRatio) { 1666 final double ASPECT_TOLERANCE = 0.05; 1667 if (sizes == null) return null; 1668 1669 Size optimalSize = null; 1670 double minDiff = Double.MAX_VALUE; 1671 1672 // Because of bugs of overlay and layout, we sometimes will try to 1673 // layout the viewfinder in the portrait orientation and thus get the 1674 // wrong size of mSurfaceView. When we change the preview size, the 1675 // new overlay will be created before the old one closed, which causes 1676 // an exception. For now, just get the screen size 1677 1678 Display display = getWindowManager().getDefaultDisplay(); 1679 int targetHeight = Math.min(display.getHeight(), display.getWidth()); 1680 1681 if (targetHeight <= 0) { 1682 // We don't know the size of SurefaceView, use screen height 1683 WindowManager windowManager = (WindowManager) 1684 getSystemService(Context.WINDOW_SERVICE); 1685 targetHeight = windowManager.getDefaultDisplay().getHeight(); 1686 } 1687 1688 // Try to find an size match aspect ratio and size 1689 for (Size size : sizes) { 1690 double ratio = (double) size.width / size.height; 1691 if (Math.abs(ratio - targetRatio) > ASPECT_TOLERANCE) continue; 1692 if (Math.abs(size.height - targetHeight) < minDiff) { 1693 optimalSize = size; 1694 minDiff = Math.abs(size.height - targetHeight); 1695 } 1696 } 1697 1698 // Cannot find the one match the aspect ratio, ignore the requirement 1699 if (optimalSize == null) { 1700 Log.v(TAG, "No preview size match the aspect ratio"); 1701 minDiff = Double.MAX_VALUE; 1702 for (Size size : sizes) { 1703 if (Math.abs(size.height - targetHeight) < minDiff) { 1704 optimalSize = size; 1705 minDiff = Math.abs(size.height - targetHeight); 1706 } 1707 } 1708 } 1709 return optimalSize; 1710 } 1711 1712 private static boolean isSupported(String value, List<String> supported) { 1713 return supported == null ? false : supported.indexOf(value) >= 0; 1714 } 1715 1716 private void updateCameraParametersInitialize() { 1717 // Reset preview frame rate to the maximum because it may be lowered by 1718 // video camera application. 1719 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1720 if (frameRates != null) { 1721 Integer max = Collections.max(frameRates); 1722 mParameters.setPreviewFrameRate(max); 1723 } 1724 1725 } 1726 1727 private void updateCameraParametersZoom() { 1728 // Set zoom. 1729 if (mParameters.isZoomSupported()) { 1730 mParameters.setZoom(mZoomValue); 1731 } 1732 } 1733 1734 private void updateCameraParametersPreference() { 1735 // Set picture size. 1736 String pictureSize = mPreferences.getString( 1737 CameraSettings.KEY_PICTURE_SIZE, null); 1738 if (pictureSize == null) { 1739 CameraSettings.initialCameraPictureSize(this, mParameters); 1740 } else { 1741 List<Size> supported = mParameters.getSupportedPictureSizes(); 1742 CameraSettings.setCameraPictureSize( 1743 pictureSize, supported, mParameters); 1744 } 1745 1746 // Set the preview frame aspect ratio according to the picture size. 1747 Size size = mParameters.getPictureSize(); 1748 PreviewFrameLayout frameLayout = 1749 (PreviewFrameLayout) findViewById(R.id.frame_layout); 1750 frameLayout.setAspectRatio((double) size.width / size.height); 1751 1752 // Set a preview size that is closest to the viewfinder height and has 1753 // the right aspect ratio. 1754 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1755 Size optimalSize = getOptimalPreviewSize( 1756 sizes, (double) size.width / size.height); 1757 if (optimalSize != null) { 1758 Size original = mParameters.getPreviewSize(); 1759 if (!original.equals(optimalSize)) { 1760 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1761 1762 // Zoom related settings will be changed for different preview 1763 // sizes, so set and read the parameters to get lastest values 1764 mCameraDevice.setParameters(mParameters); 1765 mParameters = mCameraDevice.getParameters(); 1766 } 1767 } 1768 1769 // Since change scene mode may change supported values, 1770 // Set scene mode first, 1771 mSceneMode = mPreferences.getString( 1772 CameraSettings.KEY_SCENE_MODE, 1773 getString(R.string.pref_camera_scenemode_default)); 1774 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 1775 if (!mParameters.getSceneMode().equals(mSceneMode)) { 1776 mParameters.setSceneMode(mSceneMode); 1777 mCameraDevice.setParameters(mParameters); 1778 1779 // Setting scene mode will change the settings of flash mode, 1780 // white balance, and focus mode. Here we read back the 1781 // parameters, so we can know those settings. 1782 mParameters = mCameraDevice.getParameters(); 1783 } 1784 } else { 1785 mSceneMode = mParameters.getSceneMode(); 1786 if (mSceneMode == null) { 1787 mSceneMode = Parameters.SCENE_MODE_AUTO; 1788 } 1789 } 1790 1791 // Set JPEG quality. 1792 String jpegQuality = mPreferences.getString( 1793 CameraSettings.KEY_JPEG_QUALITY, 1794 getString(R.string.pref_camera_jpegquality_default)); 1795 mParameters.setJpegQuality(JpegEncodingQualityMappings.getQualityNumber(jpegQuality)); 1796 1797 // For the following settings, we need to check if the settings are 1798 // still supported by latest driver, if not, ignore the settings. 1799 1800 // Set color effect parameter. 1801 String colorEffect = mPreferences.getString( 1802 CameraSettings.KEY_COLOR_EFFECT, 1803 getString(R.string.pref_camera_coloreffect_default)); 1804 if (isSupported(colorEffect, mParameters.getSupportedColorEffects())) { 1805 mParameters.setColorEffect(colorEffect); 1806 } 1807 1808 // Set exposure compensation 1809 String exposure = mPreferences.getString( 1810 CameraSettings.KEY_EXPOSURE, 1811 getString(R.string.pref_exposure_default)); 1812 try { 1813 int value = Integer.parseInt(exposure); 1814 int max = mParameters.getMaxExposureCompensation(); 1815 int min = mParameters.getMinExposureCompensation(); 1816 if (value >= min && value <= max) { 1817 mParameters.setExposureCompensation(value); 1818 } else { 1819 Log.w(TAG, "invalid exposure range: " + exposure); 1820 } 1821 } catch (NumberFormatException e) { 1822 Log.w(TAG, "invalid exposure: " + exposure); 1823 } 1824 1825 if (mGLRootView != null) updateSceneModeInHud(); 1826 1827 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1828 // Set flash mode. 1829 String flashMode = mPreferences.getString( 1830 CameraSettings.KEY_FLASH_MODE, 1831 getString(R.string.pref_camera_flashmode_default)); 1832 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 1833 if (isSupported(flashMode, supportedFlash)) { 1834 mParameters.setFlashMode(flashMode); 1835 } else { 1836 flashMode = mParameters.getFlashMode(); 1837 if (flashMode == null) { 1838 flashMode = getString( 1839 R.string.pref_camera_flashmode_no_flash); 1840 } 1841 } 1842 1843 // Set white balance parameter. 1844 String whiteBalance = mPreferences.getString( 1845 CameraSettings.KEY_WHITE_BALANCE, 1846 getString(R.string.pref_camera_whitebalance_default)); 1847 if (isSupported(whiteBalance, 1848 mParameters.getSupportedWhiteBalance())) { 1849 mParameters.setWhiteBalance(whiteBalance); 1850 } else { 1851 whiteBalance = mParameters.getWhiteBalance(); 1852 if (whiteBalance == null) { 1853 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 1854 } 1855 } 1856 1857 // Set focus mode. 1858 mFocusMode = mPreferences.getString( 1859 CameraSettings.KEY_FOCUS_MODE, 1860 getString(R.string.pref_camera_focusmode_default)); 1861 if (isSupported(mFocusMode, mParameters.getSupportedFocusModes())) { 1862 mParameters.setFocusMode(mFocusMode); 1863 } else { 1864 mFocusMode = mParameters.getFocusMode(); 1865 if (mFocusMode == null) { 1866 mFocusMode = Parameters.FOCUS_MODE_AUTO; 1867 } 1868 } 1869 } else { 1870 mFocusMode = mParameters.getFocusMode(); 1871 } 1872 } 1873 1874 // We separate the parameters into several subsets, so we can update only 1875 // the subsets actually need updating. The PREFERENCE set needs extra 1876 // locking because the preference can be changed from GLThread as well. 1877 private void setCameraParameters(int updateSet) { 1878 mParameters = mCameraDevice.getParameters(); 1879 1880 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 1881 updateCameraParametersInitialize(); 1882 } 1883 1884 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 1885 updateCameraParametersZoom(); 1886 } 1887 1888 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 1889 updateCameraParametersPreference(); 1890 } 1891 1892 mCameraDevice.setParameters(mParameters); 1893 } 1894 1895 // If the Camera is idle, update the parameters immediately, otherwise 1896 // accumulate them in mUpdateSet and update later. 1897 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 1898 mUpdateSet |= additionalUpdateSet; 1899 if (mCameraDevice == null) { 1900 // We will update all the parameters when we open the device, so 1901 // we don't need to do anything now. 1902 mUpdateSet = 0; 1903 return; 1904 } else if (isCameraIdle()) { 1905 setCameraParameters(mUpdateSet); 1906 mUpdateSet = 0; 1907 } else { 1908 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 1909 mHandler.sendEmptyMessageDelayed( 1910 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 1911 } 1912 } 1913 } 1914 1915 private void gotoGallery() { 1916 MenuHelper.gotoCameraImageGallery(this); 1917 } 1918 1919 private void viewLastImage() { 1920 if (mThumbController.isUriValid()) { 1921 Intent intent = new Intent(Util.REVIEW_ACTION, mThumbController.getUri()); 1922 try { 1923 startActivity(intent); 1924 } catch (ActivityNotFoundException ex) { 1925 Log.e(TAG, "review image fail", ex); 1926 } 1927 } else { 1928 Log.e(TAG, "Can't view last image."); 1929 } 1930 } 1931 1932 private void startReceivingLocationUpdates() { 1933 if (mLocationManager != null) { 1934 try { 1935 mLocationManager.requestLocationUpdates( 1936 LocationManager.NETWORK_PROVIDER, 1937 1000, 1938 0F, 1939 mLocationListeners[1]); 1940 } catch (java.lang.SecurityException ex) { 1941 Log.i(TAG, "fail to request location update, ignore", ex); 1942 } catch (IllegalArgumentException ex) { 1943 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1944 } 1945 try { 1946 mLocationManager.requestLocationUpdates( 1947 LocationManager.GPS_PROVIDER, 1948 1000, 1949 0F, 1950 mLocationListeners[0]); 1951 } catch (java.lang.SecurityException ex) { 1952 Log.i(TAG, "fail to request location update, ignore", ex); 1953 } catch (IllegalArgumentException ex) { 1954 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1955 } 1956 } 1957 } 1958 1959 private void stopReceivingLocationUpdates() { 1960 if (mLocationManager != null) { 1961 for (int i = 0; i < mLocationListeners.length; i++) { 1962 try { 1963 mLocationManager.removeUpdates(mLocationListeners[i]); 1964 } catch (Exception ex) { 1965 Log.i(TAG, "fail to remove location listners, ignore", ex); 1966 } 1967 } 1968 } 1969 } 1970 1971 private Location getCurrentLocation() { 1972 // go in best to worst order 1973 for (int i = 0; i < mLocationListeners.length; i++) { 1974 Location l = mLocationListeners[i].current(); 1975 if (l != null) return l; 1976 } 1977 return null; 1978 } 1979 1980 private boolean isCameraIdle() { 1981 return mStatus == IDLE && mFocusState == FOCUS_NOT_STARTED; 1982 } 1983 1984 private boolean isImageCaptureIntent() { 1985 String action = getIntent().getAction(); 1986 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 1987 } 1988 1989 private void setupCaptureParams() { 1990 Bundle myExtras = getIntent().getExtras(); 1991 if (myExtras != null) { 1992 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 1993 mCropValue = myExtras.getString("crop"); 1994 } 1995 } 1996 1997 private void showPostCaptureAlert() { 1998 if (mIsImageCaptureIntent) { 1999 findViewById(R.id.shutter_button).setVisibility(View.INVISIBLE); 2000 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2001 for (int id : pickIds) { 2002 View button = findViewById(id); 2003 ((View) button.getParent()).setVisibility(View.VISIBLE); 2004 } 2005 } 2006 } 2007 2008 private void hidePostCaptureAlert() { 2009 if (mIsImageCaptureIntent) { 2010 findViewById(R.id.shutter_button).setVisibility(View.VISIBLE); 2011 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2012 for (int id : pickIds) { 2013 View button = findViewById(id); 2014 ((View) button.getParent()).setVisibility(View.GONE); 2015 } 2016 } 2017 } 2018 2019 private int calculatePicturesRemaining() { 2020 mPicturesRemaining = MenuHelper.calculatePicturesRemaining(); 2021 return mPicturesRemaining; 2022 } 2023 2024 @Override 2025 public boolean onPrepareOptionsMenu(Menu menu) { 2026 super.onPrepareOptionsMenu(menu); 2027 // Only show the menu when camera is idle. 2028 for (int i = 0; i < menu.size(); i++) { 2029 menu.getItem(i).setVisible(isCameraIdle()); 2030 } 2031 2032 return true; 2033 } 2034 2035 @Override 2036 public boolean onCreateOptionsMenu(Menu menu) { 2037 super.onCreateOptionsMenu(menu); 2038 2039 if (mIsImageCaptureIntent) { 2040 // No options menu for attach mode. 2041 return false; 2042 } else { 2043 addBaseMenuItems(menu); 2044 } 2045 return true; 2046 } 2047 2048 private void addBaseMenuItems(Menu menu) { 2049 MenuHelper.addSwitchModeMenuItem(menu, true, new Runnable() { 2050 public void run() { 2051 switchToVideoMode(); 2052 } 2053 }); 2054 MenuItem gallery = menu.add(Menu.NONE, Menu.NONE, 2055 MenuHelper.POSITION_GOTO_GALLERY, 2056 R.string.camera_gallery_photos_text) 2057 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2058 public boolean onMenuItemClick(MenuItem item) { 2059 gotoGallery(); 2060 return true; 2061 } 2062 }); 2063 gallery.setIcon(android.R.drawable.ic_menu_gallery); 2064 mGalleryItems.add(gallery); 2065 } 2066 2067 private boolean switchToVideoMode() { 2068 if (isFinishing() || !isCameraIdle()) return false; 2069 MenuHelper.gotoVideoMode(this); 2070 mHandler.removeMessages(FIRST_TIME_INIT); 2071 finish(); 2072 return true; 2073 } 2074 2075 public boolean onSwitchChanged(Switcher source, boolean onOff) { 2076 if (onOff == SWITCH_VIDEO) { 2077 return switchToVideoMode(); 2078 } else { 2079 return true; 2080 } 2081 } 2082 2083 private void onSharedPreferenceChanged() { 2084 // ignore the events after "onPause()" 2085 if (mPausing) return; 2086 2087 boolean recordLocation; 2088 2089 recordLocation = RecordLocationPreference.get( 2090 mPreferences, getContentResolver()); 2091 mQuickCapture = getQuickCaptureSettings(); 2092 2093 if (mRecordLocation != recordLocation) { 2094 mRecordLocation = recordLocation; 2095 if (mRecordLocation) { 2096 startReceivingLocationUpdates(); 2097 } else { 2098 stopReceivingLocationUpdates(); 2099 } 2100 } 2101 2102 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 2103 } 2104 2105 private boolean getQuickCaptureSettings() { 2106 String value = mPreferences.getString( 2107 CameraSettings.KEY_QUICK_CAPTURE, 2108 getString(R.string.pref_camera_quickcapture_default)); 2109 return CameraSettings.QUICK_CAPTURE_ON.equals(value); 2110 } 2111 2112 @Override 2113 public void onUserInteraction() { 2114 super.onUserInteraction(); 2115 keepScreenOnAwhile(); 2116 } 2117 2118 private void resetScreenOn() { 2119 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2120 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2121 } 2122 2123 private void keepScreenOnAwhile() { 2124 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2125 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2126 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2127 } 2128 2129 private class MyHeadUpDisplayListener implements HeadUpDisplay.Listener { 2130 2131 public void onSharedPreferencesChanged() { 2132 Camera.this.onSharedPreferenceChanged(); 2133 } 2134 2135 public void onRestorePreferencesClicked() { 2136 Camera.this.onRestorePreferencesClicked(); 2137 } 2138 2139 public void onPopupWindowVisibilityChanged(int visibility) { 2140 } 2141 } 2142 2143 protected void onRestorePreferencesClicked() { 2144 if (mPausing) return; 2145 Runnable runnable = new Runnable() { 2146 public void run() { 2147 mHeadUpDisplay.restorePreferences(mParameters); 2148 } 2149 }; 2150 MenuHelper.confirmAction(this, 2151 getString(R.string.confirm_restore_title), 2152 getString(R.string.confirm_restore_message), 2153 runnable); 2154 } 2155} 2156 2157class FocusRectangle extends View { 2158 2159 @SuppressWarnings("unused") 2160 private static final String TAG = "FocusRectangle"; 2161 2162 public FocusRectangle(Context context, AttributeSet attrs) { 2163 super(context, attrs); 2164 } 2165 2166 private void setDrawable(int resid) { 2167 setBackgroundDrawable(getResources().getDrawable(resid)); 2168 } 2169 2170 public void showStart() { 2171 setDrawable(R.drawable.focus_focusing); 2172 } 2173 2174 public void showSuccess() { 2175 setDrawable(R.drawable.focus_focused); 2176 } 2177 2178 public void showFail() { 2179 setDrawable(R.drawable.focus_focus_failed); 2180 } 2181 2182 public void clear() { 2183 setBackgroundDrawable(null); 2184 } 2185} 2186 2187/* 2188 * Provide a mapping for Jpeg encoding quality levels 2189 * from String representation to numeric representation. 2190 */ 2191class JpegEncodingQualityMappings { 2192 private static final String TAG = "JpegEncodingQualityMappings"; 2193 private static final int DEFAULT_QUALITY = 85; 2194 private static HashMap<String, Integer> mHashMap = 2195 new HashMap<String, Integer>(); 2196 2197 static { 2198 mHashMap.put("normal", CameraProfile.QUALITY_LOW); 2199 mHashMap.put("fine", CameraProfile.QUALITY_MEDIUM); 2200 mHashMap.put("superfine", CameraProfile.QUALITY_HIGH); 2201 } 2202 2203 // Retrieve and return the Jpeg encoding quality number 2204 // for the given quality level. 2205 public static int getQualityNumber(String jpegQuality) { 2206 Integer quality = mHashMap.get(jpegQuality); 2207 if (quality == null) { 2208 Log.w(TAG, "Unknown Jpeg quality: " + jpegQuality); 2209 return DEFAULT_QUALITY; 2210 } 2211 return CameraProfile.getJpegEncodingQualityParameter(quality.intValue()); 2212 } 2213} 2214