Camera.java revision e6ffea291dde5adde94bf337731213e7fd3c8c56
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 || action.equals(Intent.ACTION_MEDIA_SCANNER_STARTED)) { 520 checkStorage(); 521 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 522 checkStorage(); 523 if (!mIsImageCaptureIntent) { 524 updateThumbnailButton(); 525 } 526 } 527 } 528 }; 529 530 private class LocationListener 531 implements android.location.LocationListener { 532 Location mLastLocation; 533 boolean mValid = false; 534 String mProvider; 535 536 public LocationListener(String provider) { 537 mProvider = provider; 538 mLastLocation = new Location(mProvider); 539 } 540 541 public void onLocationChanged(Location newLocation) { 542 if (newLocation.getLatitude() == 0.0 543 && newLocation.getLongitude() == 0.0) { 544 // Hack to filter out 0.0,0.0 locations 545 return; 546 } 547 // If GPS is available before start camera, we won't get status 548 // update so update GPS indicator when we receive data. 549 if (mRecordLocation 550 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 551 if (mHeadUpDisplay != null) { 552 mHeadUpDisplay.setGpsHasSignal(true); 553 } 554 } 555 mLastLocation.set(newLocation); 556 mValid = true; 557 } 558 559 public void onProviderEnabled(String provider) { 560 } 561 562 public void onProviderDisabled(String provider) { 563 mValid = false; 564 } 565 566 public void onStatusChanged( 567 String provider, int status, Bundle extras) { 568 switch(status) { 569 case LocationProvider.OUT_OF_SERVICE: 570 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 571 mValid = false; 572 if (mRecordLocation && 573 LocationManager.GPS_PROVIDER.equals(provider)) { 574 if (mHeadUpDisplay != null) { 575 mHeadUpDisplay.setGpsHasSignal(false); 576 } 577 } 578 break; 579 } 580 } 581 } 582 583 public Location current() { 584 return mValid ? mLastLocation : null; 585 } 586 } 587 588 private final class ShutterCallback 589 implements android.hardware.Camera.ShutterCallback { 590 public void onShutter() { 591 mShutterCallbackTime = System.currentTimeMillis(); 592 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 593 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 594 clearFocusState(); 595 } 596 } 597 598 private final class PostViewPictureCallback implements PictureCallback { 599 public void onPictureTaken( 600 byte [] data, android.hardware.Camera camera) { 601 mPostViewPictureCallbackTime = System.currentTimeMillis(); 602 Log.v(TAG, "mShutterToPostViewCallbackTime = " 603 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 604 + "ms"); 605 } 606 } 607 608 private final class RawPictureCallback implements PictureCallback { 609 public void onPictureTaken( 610 byte [] rawData, android.hardware.Camera camera) { 611 mRawPictureCallbackTime = System.currentTimeMillis(); 612 Log.v(TAG, "mShutterToRawCallbackTime = " 613 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 614 } 615 } 616 617 private final class JpegPictureCallback implements PictureCallback { 618 Location mLocation; 619 620 public JpegPictureCallback(Location loc) { 621 mLocation = loc; 622 } 623 624 public void onPictureTaken( 625 final byte [] jpegData, final android.hardware.Camera camera) { 626 if (mPausing) { 627 return; 628 } 629 630 mJpegPictureCallbackTime = System.currentTimeMillis(); 631 // If postview callback has arrived, the captured image is displayed 632 // in postview callback. If not, the captured image is displayed in 633 // raw picture callback. 634 if (mPostViewPictureCallbackTime != 0) { 635 mShutterToPictureDisplayedTime = 636 mPostViewPictureCallbackTime - mShutterCallbackTime; 637 mPictureDisplayedToJpegCallbackTime = 638 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 639 } else { 640 mShutterToPictureDisplayedTime = 641 mRawPictureCallbackTime - mShutterCallbackTime; 642 mPictureDisplayedToJpegCallbackTime = 643 mJpegPictureCallbackTime - mRawPictureCallbackTime; 644 } 645 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 646 + mPictureDisplayedToJpegCallbackTime + "ms"); 647 mHeadUpDisplay.setEnabled(true); 648 649 if (!mIsImageCaptureIntent) { 650 // We want to show the taken picture for a while, so we wait 651 // for at least 1.2 second before restarting the preview. 652 long delay = 1200 - mPictureDisplayedToJpegCallbackTime; 653 if (delay < 0 || mQuickCapture) { 654 restartPreview(); 655 } else { 656 mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay); 657 } 658 } 659 mImageCapture.storeImage(jpegData, camera, mLocation); 660 661 // Calculate this in advance of each shot so we don't add to shutter 662 // latency. It's true that someone else could write to the SD card in 663 // the mean time and fill it, but that could have happened between the 664 // shutter press and saving the JPEG too. 665 calculatePicturesRemaining(); 666 667 if (mPicturesRemaining < 1) { 668 updateStorageHint(mPicturesRemaining); 669 } 670 671 if (!mHandler.hasMessages(RESTART_PREVIEW)) { 672 long now = System.currentTimeMillis(); 673 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 674 Log.v(TAG, "mJpegCallbackFinishTime = " 675 + mJpegCallbackFinishTime + "ms"); 676 mJpegPictureCallbackTime = 0; 677 } 678 } 679 } 680 681 private final class AutoFocusCallback 682 implements android.hardware.Camera.AutoFocusCallback { 683 public void onAutoFocus( 684 boolean focused, android.hardware.Camera camera) { 685 mFocusCallbackTime = System.currentTimeMillis(); 686 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 687 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 688 if (mFocusState == FOCUSING_SNAP_ON_FINISH) { 689 // Take the picture no matter focus succeeds or fails. No need 690 // to play the AF sound if we're about to play the shutter 691 // sound. 692 if (focused) { 693 mFocusState = FOCUS_SUCCESS; 694 } else { 695 mFocusState = FOCUS_FAIL; 696 } 697 mImageCapture.onSnap(); 698 } else if (mFocusState == FOCUSING) { 699 // User is half-pressing the focus key. Play the focus tone. 700 // Do not take the picture now. 701 ToneGenerator tg = mFocusToneGenerator; 702 if (tg != null) { 703 tg.startTone(ToneGenerator.TONE_PROP_BEEP2); 704 } 705 if (focused) { 706 mFocusState = FOCUS_SUCCESS; 707 } else { 708 mFocusState = FOCUS_FAIL; 709 } 710 } else if (mFocusState == FOCUS_NOT_STARTED) { 711 // User has released the focus key before focus completes. 712 // Do nothing. 713 } 714 updateFocusIndicator(); 715 } 716 } 717 718 private static final class ErrorCallback 719 implements android.hardware.Camera.ErrorCallback { 720 public void onError(int error, android.hardware.Camera camera) { 721 if (error == android.hardware.Camera.CAMERA_ERROR_SERVER_DIED) { 722 mMediaServerDied = true; 723 Log.v(TAG, "media server died"); 724 } 725 } 726 } 727 728 private final class ZoomListener 729 implements android.hardware.Camera.OnZoomChangeListener { 730 public void onZoomChange( 731 int value, boolean stopped, android.hardware.Camera camera) { 732 Log.v(TAG, "Zoom changed: value=" + value + ". stopped="+ stopped); 733 mZoomValue = value; 734 // Keep mParameters up to date. We do not getParameter again in 735 // takePicture. If we do not do this, wrong zoom value will be set. 736 mParameters.setZoom(value); 737 // We only care if the zoom is stopped. mZooming is set to true when 738 // we start smooth zoom. 739 if (stopped && mZoomState != ZOOM_STOPPED) { 740 if (value != mTargetZoomValue) { 741 mCameraDevice.startSmoothZoom(mTargetZoomValue); 742 mZoomState = ZOOM_START; 743 } else { 744 mZoomState = ZOOM_STOPPED; 745 } 746 } 747 } 748 } 749 750 private class ImageCapture { 751 752 private Uri mLastContentUri; 753 754 byte[] mCaptureOnlyData; 755 756 // Returns the rotation degree in the jpeg header. 757 private int storeImage(byte[] data, Location loc) { 758 try { 759 long dateTaken = System.currentTimeMillis(); 760 String title = createName(dateTaken); 761 String filename = title + ".jpg"; 762 int[] degree = new int[1]; 763 mLastContentUri = ImageManager.addImage( 764 mContentResolver, 765 title, 766 dateTaken, 767 loc, // location from gps/network 768 ImageManager.CAMERA_IMAGE_BUCKET_NAME, filename, 769 null, data, 770 degree); 771 return degree[0]; 772 } catch (Exception ex) { 773 Log.e(TAG, "Exception while compressing image.", ex); 774 return 0; 775 } 776 } 777 778 public void storeImage(final byte[] data, 779 android.hardware.Camera camera, Location loc) { 780 if (!mIsImageCaptureIntent) { 781 int degree = storeImage(data, loc); 782 sendBroadcast(new Intent( 783 "com.android.camera.NEW_PICTURE", mLastContentUri)); 784 setLastPictureThumb(data, degree, 785 mImageCapture.getLastCaptureUri()); 786 mThumbController.updateDisplayIfNeeded(); 787 } else { 788 mCaptureOnlyData = data; 789 showPostCaptureAlert(); 790 } 791 } 792 793 /** 794 * Initiate the capture of an image. 795 */ 796 public void initiate() { 797 if (mCameraDevice == null) { 798 return; 799 } 800 801 capture(); 802 } 803 804 public Uri getLastCaptureUri() { 805 return mLastContentUri; 806 } 807 808 public byte[] getLastCaptureData() { 809 return mCaptureOnlyData; 810 } 811 812 private void capture() { 813 mCaptureOnlyData = null; 814 815 // Set rotation. 816 mParameters.setRotation(mLastOrientation); 817 818 // Clear previous GPS location from the parameters. 819 mParameters.removeGpsData(); 820 821 // Set GPS location. 822 Location loc = mRecordLocation ? getCurrentLocation() : null; 823 if (loc != null) { 824 double lat = loc.getLatitude(); 825 double lon = loc.getLongitude(); 826 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 827 828 if (hasLatLon) { 829 mParameters.setGpsLatitude(lat); 830 mParameters.setGpsLongitude(lon); 831 mParameters.setGpsProcessingMethod(loc.getProvider().toUpperCase()); 832 if (loc.hasAltitude()) { 833 mParameters.setGpsAltitude(loc.getAltitude()); 834 } else { 835 // for NETWORK_PROVIDER location provider, we may have 836 // no altitude information, but the driver needs it, so 837 // we fake one. 838 mParameters.setGpsAltitude(0); 839 } 840 if (loc.getTime() != 0) { 841 // Location.getTime() is UTC in milliseconds. 842 // gps-timestamp is UTC in seconds. 843 long utcTimeSeconds = loc.getTime() / 1000; 844 mParameters.setGpsTimestamp(utcTimeSeconds); 845 } 846 } else { 847 loc = null; 848 } 849 } 850 851 mCameraDevice.setParameters(mParameters); 852 853 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 854 mPostViewPictureCallback, new JpegPictureCallback(loc)); 855 mPreviewing = false; 856 } 857 858 public void onSnap() { 859 // If we are already in the middle of taking a snapshot then ignore. 860 if (mPausing || mStatus == SNAPSHOT_IN_PROGRESS) { 861 return; 862 } 863 mCaptureStartTime = System.currentTimeMillis(); 864 mPostViewPictureCallbackTime = 0; 865 mHeadUpDisplay.setEnabled(false); 866 mStatus = SNAPSHOT_IN_PROGRESS; 867 868 mImageCapture.initiate(); 869 } 870 871 private void clearLastData() { 872 mCaptureOnlyData = null; 873 } 874 } 875 876 private boolean saveDataToFile(String filePath, byte[] data) { 877 FileOutputStream f = null; 878 try { 879 f = new FileOutputStream(filePath); 880 f.write(data); 881 } catch (IOException e) { 882 return false; 883 } finally { 884 MenuHelper.closeSilently(f); 885 } 886 return true; 887 } 888 889 private void setLastPictureThumb(byte[] data, int degree, Uri uri) { 890 BitmapFactory.Options options = new BitmapFactory.Options(); 891 options.inSampleSize = 16; 892 Bitmap lastPictureThumb = 893 BitmapFactory.decodeByteArray(data, 0, data.length, options); 894 lastPictureThumb = Util.rotate(lastPictureThumb, degree); 895 mThumbController.setData(uri, lastPictureThumb); 896 } 897 898 private String createName(long dateTaken) { 899 Date date = new Date(dateTaken); 900 SimpleDateFormat dateFormat = new SimpleDateFormat( 901 getString(R.string.image_file_name_format)); 902 903 return dateFormat.format(date); 904 } 905 906 @Override 907 public void onCreate(Bundle icicle) { 908 super.onCreate(icicle); 909 910 setContentView(R.layout.camera); 911 mSurfaceView = (SurfaceView) findViewById(R.id.camera_preview); 912 913 mPreferences = PreferenceManager.getDefaultSharedPreferences(this); 914 CameraSettings.upgradePreferences(mPreferences); 915 916 mQuickCapture = getQuickCaptureSettings(); 917 918 // we need to reset exposure for the preview 919 resetExposureCompensation(); 920 /* 921 * To reduce startup time, we start the preview in another thread. 922 * We make sure the preview is started at the end of onCreate. 923 */ 924 Thread startPreviewThread = new Thread(new Runnable() { 925 public void run() { 926 try { 927 mStartPreviewFail = false; 928 startPreview(); 929 } catch (CameraHardwareException e) { 930 // In eng build, we throw the exception so that test tool 931 // can detect it and report it 932 if ("eng".equals(Build.TYPE)) { 933 throw new RuntimeException(e); 934 } 935 mStartPreviewFail = true; 936 } 937 } 938 }); 939 startPreviewThread.start(); 940 941 // don't set mSurfaceHolder here. We have it set ONLY within 942 // surfaceChanged / surfaceDestroyed, other parts of the code 943 // assume that when it is set, the surface is also set. 944 SurfaceHolder holder = mSurfaceView.getHolder(); 945 holder.addCallback(this); 946 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 947 948 mIsImageCaptureIntent = isImageCaptureIntent(); 949 if (mIsImageCaptureIntent) { 950 setupCaptureParams(); 951 } 952 953 LayoutInflater inflater = getLayoutInflater(); 954 955 ViewGroup rootView = (ViewGroup) findViewById(R.id.camera); 956 mGLRootView = (GLRootView) findViewById(R.id.settings_ui); 957 958 if (mIsImageCaptureIntent) { 959 View controlBar = inflater.inflate( 960 R.layout.attach_camera_control, rootView); 961 controlBar.findViewById(R.id.btn_cancel).setOnClickListener(this); 962 controlBar.findViewById(R.id.btn_retake).setOnClickListener(this); 963 controlBar.findViewById(R.id.btn_done).setOnClickListener(this); 964 } else { 965 inflater.inflate(R.layout.camera_control, rootView); 966 mSwitcher = ((Switcher) findViewById(R.id.camera_switch)); 967 mSwitcher.setOnSwitchListener(this); 968 mSwitcher.addTouchView(findViewById(R.id.camera_switch_set)); 969 } 970 971 // Make sure preview is started. 972 try { 973 startPreviewThread.join(); 974 if (mStartPreviewFail) { 975 showCameraErrorAndFinish(); 976 return; 977 } 978 } catch (InterruptedException ex) { 979 // ignore 980 } 981 } 982 983 private void setOrientationIndicator(int degree) { 984 ((RotateImageView) findViewById( 985 R.id.review_thumbnail)).setDegree(degree); 986 ((RotateImageView) findViewById( 987 R.id.camera_switch_icon)).setDegree(degree); 988 ((RotateImageView) findViewById( 989 R.id.video_switch_icon)).setDegree(degree); 990 } 991 992 @Override 993 public void onStart() { 994 super.onStart(); 995 if (!mIsImageCaptureIntent) { 996 mSwitcher.setSwitch(SWITCH_CAMERA); 997 } 998 } 999 1000 @Override 1001 public void onStop() { 1002 super.onStop(); 1003 if (mMediaProviderClient != null) { 1004 mMediaProviderClient.release(); 1005 mMediaProviderClient = null; 1006 } 1007 } 1008 1009 private void checkStorage() { 1010 if (ImageManager.isMediaScannerScanning(getContentResolver())) { 1011 mPicturesRemaining = MenuHelper.NO_STORAGE_ERROR; 1012 } else { 1013 calculatePicturesRemaining(); 1014 } 1015 updateStorageHint(mPicturesRemaining); 1016 } 1017 1018 public void onClick(View v) { 1019 switch (v.getId()) { 1020 case R.id.btn_retake: 1021 hidePostCaptureAlert(); 1022 restartPreview(); 1023 break; 1024 case R.id.review_thumbnail: 1025 if (isCameraIdle()) { 1026 viewLastImage(); 1027 } 1028 break; 1029 case R.id.btn_done: 1030 doAttach(); 1031 break; 1032 case R.id.btn_cancel: 1033 doCancel(); 1034 } 1035 } 1036 1037 private Bitmap createCaptureBitmap(byte[] data) { 1038 // This is really stupid...we just want to read the orientation in 1039 // the jpeg header. 1040 String filepath = ImageManager.getTempJpegPath(); 1041 int degree = 0; 1042 if (saveDataToFile(filepath, data)) { 1043 degree = ImageManager.getExifOrientation(filepath); 1044 new File(filepath).delete(); 1045 } 1046 1047 // Limit to 50k pixels so we can return it in the intent. 1048 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1049 bitmap = Util.rotate(bitmap, degree); 1050 return bitmap; 1051 } 1052 1053 private void doAttach() { 1054 if (mPausing) { 1055 return; 1056 } 1057 1058 byte[] data = mImageCapture.getLastCaptureData(); 1059 1060 if (mCropValue == null) { 1061 // First handle the no crop case -- just return the value. If the 1062 // caller specifies a "save uri" then write the data to it's 1063 // stream. Otherwise, pass back a scaled down version of the bitmap 1064 // directly in the extras. 1065 if (mSaveUri != null) { 1066 OutputStream outputStream = null; 1067 try { 1068 outputStream = mContentResolver.openOutputStream(mSaveUri); 1069 outputStream.write(data); 1070 outputStream.close(); 1071 1072 setResult(RESULT_OK); 1073 finish(); 1074 } catch (IOException ex) { 1075 // ignore exception 1076 } finally { 1077 Util.closeSilently(outputStream); 1078 } 1079 } else { 1080 Bitmap bitmap = createCaptureBitmap(data); 1081 setResult(RESULT_OK, 1082 new Intent("inline-data").putExtra("data", bitmap)); 1083 finish(); 1084 } 1085 } else { 1086 // Save the image to a temp file and invoke the cropper 1087 Uri tempUri = null; 1088 FileOutputStream tempStream = null; 1089 try { 1090 File path = getFileStreamPath(sTempCropFilename); 1091 path.delete(); 1092 tempStream = openFileOutput(sTempCropFilename, 0); 1093 tempStream.write(data); 1094 tempStream.close(); 1095 tempUri = Uri.fromFile(path); 1096 } catch (FileNotFoundException ex) { 1097 setResult(Activity.RESULT_CANCELED); 1098 finish(); 1099 return; 1100 } catch (IOException ex) { 1101 setResult(Activity.RESULT_CANCELED); 1102 finish(); 1103 return; 1104 } finally { 1105 Util.closeSilently(tempStream); 1106 } 1107 1108 Bundle newExtras = new Bundle(); 1109 if (mCropValue.equals("circle")) { 1110 newExtras.putString("circleCrop", "true"); 1111 } 1112 if (mSaveUri != null) { 1113 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1114 } else { 1115 newExtras.putBoolean("return-data", true); 1116 } 1117 1118 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1119 1120 cropIntent.setData(tempUri); 1121 cropIntent.putExtras(newExtras); 1122 1123 startActivityForResult(cropIntent, CROP_MSG); 1124 } 1125 } 1126 1127 private void doCancel() { 1128 setResult(RESULT_CANCELED, new Intent()); 1129 finish(); 1130 } 1131 1132 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1133 if (mPausing) { 1134 return; 1135 } 1136 switch (button.getId()) { 1137 case R.id.shutter_button: 1138 doFocus(pressed); 1139 break; 1140 } 1141 } 1142 1143 public void onShutterButtonClick(ShutterButton button) { 1144 if (mPausing) { 1145 return; 1146 } 1147 switch (button.getId()) { 1148 case R.id.shutter_button: 1149 doSnap(); 1150 break; 1151 } 1152 } 1153 1154 private OnScreenHint mStorageHint; 1155 1156 private void updateStorageHint(int remaining) { 1157 String noStorageText = null; 1158 1159 if (remaining == MenuHelper.NO_STORAGE_ERROR) { 1160 String state = Environment.getExternalStorageState(); 1161 if (state == Environment.MEDIA_CHECKING || 1162 ImageManager.isMediaScannerScanning(getContentResolver())) { 1163 noStorageText = getString(R.string.preparing_sd); 1164 } else { 1165 noStorageText = getString(R.string.no_storage); 1166 } 1167 } else if (remaining < 1) { 1168 noStorageText = getString(R.string.not_enough_space); 1169 } 1170 1171 if (noStorageText != null) { 1172 if (mStorageHint == null) { 1173 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1174 } else { 1175 mStorageHint.setText(noStorageText); 1176 } 1177 mStorageHint.show(); 1178 } else if (mStorageHint != null) { 1179 mStorageHint.cancel(); 1180 mStorageHint = null; 1181 } 1182 } 1183 1184 private void installIntentFilter() { 1185 // install an intent filter to receive SD card related events. 1186 IntentFilter intentFilter = 1187 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1188 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1189 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED); 1190 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1191 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1192 intentFilter.addDataScheme("file"); 1193 registerReceiver(mReceiver, intentFilter); 1194 mDidRegister = true; 1195 } 1196 1197 private void initializeFocusTone() { 1198 // Initialize focus tone generator. 1199 try { 1200 mFocusToneGenerator = new ToneGenerator( 1201 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1202 } catch (Throwable ex) { 1203 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1204 mFocusToneGenerator = null; 1205 } 1206 } 1207 1208 private void initializeScreenBrightness() { 1209 Window win = getWindow(); 1210 // Overright the brightness settings if it is automatic 1211 int mode = Settings.System.getInt( 1212 getContentResolver(), 1213 Settings.System.SCREEN_BRIGHTNESS_MODE, 1214 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); 1215 if (mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC) { 1216 WindowManager.LayoutParams winParams = win.getAttributes(); 1217 winParams.screenBrightness = DEFAULT_CAMERA_BRIGHTNESS; 1218 win.setAttributes(winParams); 1219 } 1220 } 1221 1222 @Override 1223 protected void onResume() { 1224 super.onResume(); 1225 mGLRootView.onResume(); 1226 1227 mPausing = false; 1228 mJpegPictureCallbackTime = 0; 1229 mZoomValue = 0; 1230 if (mHeadUpDisplay != null) { 1231 mHeadUpDisplay.setZoomIndex(mZoomValue); 1232 } 1233 mImageCapture = new ImageCapture(); 1234 1235 resetExposureCompensation(); 1236 1237 // Start the preview if it is not started. 1238 if (!mPreviewing && !mStartPreviewFail) { 1239 try { 1240 startPreview(); 1241 } catch (CameraHardwareException e) { 1242 showCameraErrorAndFinish(); 1243 return; 1244 } 1245 } 1246 1247 if (mSurfaceHolder != null) { 1248 // If first time initialization is not finished, put it in the 1249 // message queue. 1250 if (!mFirstTimeInitialized) { 1251 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1252 } else { 1253 initializeSecondTime(); 1254 } 1255 } 1256 keepScreenOnAwhile(); 1257 } 1258 1259 private static ImageManager.DataLocation dataLocation() { 1260 return ImageManager.DataLocation.EXTERNAL; 1261 } 1262 1263 @Override 1264 protected void onPause() { 1265 mPausing = true; 1266 stopPreview(); 1267 // Close the camera now because other activities may need to use it. 1268 closeCamera(); 1269 resetScreenOn(); 1270 1271 if (!isFinishing()) { 1272 mGLRootView.onPause(); 1273 if (mHeadUpDisplay != null) { 1274 mHeadUpDisplay.setGpsHasSignal(false); 1275 mHeadUpDisplay.collapse(); 1276 } 1277 } 1278 1279 if (mFirstTimeInitialized) { 1280 mOrientationListener.disable(); 1281 if (!mIsImageCaptureIntent) { 1282 mThumbController.storeData( 1283 ImageManager.getLastImageThumbPath()); 1284 } 1285 hidePostCaptureAlert(); 1286 } 1287 1288 if (mDidRegister) { 1289 unregisterReceiver(mReceiver); 1290 mDidRegister = false; 1291 } 1292 stopReceivingLocationUpdates(); 1293 1294 if (mFocusToneGenerator != null) { 1295 mFocusToneGenerator.release(); 1296 mFocusToneGenerator = null; 1297 } 1298 1299 if (mStorageHint != null) { 1300 mStorageHint.cancel(); 1301 mStorageHint = null; 1302 } 1303 1304 // If we are in an image capture intent and has taken 1305 // a picture, we just clear it in onPause. 1306 mImageCapture.clearLastData(); 1307 mImageCapture = null; 1308 1309 // Remove the messages in the event queue. 1310 mHandler.removeMessages(RESTART_PREVIEW); 1311 mHandler.removeMessages(FIRST_TIME_INIT); 1312 1313 super.onPause(); 1314 } 1315 1316 @Override 1317 protected void onActivityResult( 1318 int requestCode, int resultCode, Intent data) { 1319 switch (requestCode) { 1320 case CROP_MSG: { 1321 Intent intent = new Intent(); 1322 if (data != null) { 1323 Bundle extras = data.getExtras(); 1324 if (extras != null) { 1325 intent.putExtras(extras); 1326 } 1327 } 1328 setResult(resultCode, intent); 1329 finish(); 1330 1331 File path = getFileStreamPath(sTempCropFilename); 1332 path.delete(); 1333 1334 break; 1335 } 1336 } 1337 } 1338 1339 private boolean canTakePicture() { 1340 return isCameraIdle() && mPreviewing && (mPicturesRemaining > 0); 1341 } 1342 1343 private void autoFocus() { 1344 // Initiate autofocus only when preview is started and snapshot is not 1345 // in progress. 1346 if (canTakePicture()) { 1347 mHeadUpDisplay.setEnabled(false); 1348 Log.v(TAG, "Start autofocus."); 1349 mFocusStartTime = System.currentTimeMillis(); 1350 mFocusState = FOCUSING; 1351 updateFocusIndicator(); 1352 mCameraDevice.autoFocus(mAutoFocusCallback); 1353 } 1354 } 1355 1356 private void cancelAutoFocus() { 1357 // User releases half-pressed focus key. 1358 if (mFocusState == FOCUSING || mFocusState == FOCUS_SUCCESS 1359 || mFocusState == FOCUS_FAIL) { 1360 Log.v(TAG, "Cancel autofocus."); 1361 mHeadUpDisplay.setEnabled(true); 1362 mCameraDevice.cancelAutoFocus(); 1363 } 1364 if (mFocusState != FOCUSING_SNAP_ON_FINISH) { 1365 clearFocusState(); 1366 } 1367 } 1368 1369 private void clearFocusState() { 1370 mFocusState = FOCUS_NOT_STARTED; 1371 updateFocusIndicator(); 1372 } 1373 1374 private void updateFocusIndicator() { 1375 if (mFocusRectangle == null) return; 1376 1377 if (mFocusState == FOCUSING || mFocusState == FOCUSING_SNAP_ON_FINISH) { 1378 mFocusRectangle.showStart(); 1379 } else if (mFocusState == FOCUS_SUCCESS) { 1380 mFocusRectangle.showSuccess(); 1381 } else if (mFocusState == FOCUS_FAIL) { 1382 mFocusRectangle.showFail(); 1383 } else { 1384 mFocusRectangle.clear(); 1385 } 1386 } 1387 1388 @Override 1389 public void onBackPressed() { 1390 if (!isCameraIdle()) { 1391 // ignore backs while we're taking a picture 1392 return; 1393 } else if (mHeadUpDisplay == null || !mHeadUpDisplay.collapse()) { 1394 super.onBackPressed(); 1395 } 1396 } 1397 1398 @Override 1399 public boolean onKeyDown(int keyCode, KeyEvent event) { 1400 switch (keyCode) { 1401 case KeyEvent.KEYCODE_FOCUS: 1402 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1403 doFocus(true); 1404 } 1405 return true; 1406 case KeyEvent.KEYCODE_CAMERA: 1407 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1408 doSnap(); 1409 } 1410 return true; 1411 case KeyEvent.KEYCODE_DPAD_CENTER: 1412 // If we get a dpad center event without any focused view, move 1413 // the focus to the shutter button and press it. 1414 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1415 // Start auto-focus immediately to reduce shutter lag. After 1416 // the shutter button gets the focus, doFocus() will be 1417 // called again but it is fine. 1418 if (mHeadUpDisplay.collapse()) return true; 1419 doFocus(true); 1420 if (mShutterButton.isInTouchMode()) { 1421 mShutterButton.requestFocusFromTouch(); 1422 } else { 1423 mShutterButton.requestFocus(); 1424 } 1425 mShutterButton.setPressed(true); 1426 } 1427 return true; 1428 } 1429 1430 return super.onKeyDown(keyCode, event); 1431 } 1432 1433 @Override 1434 public boolean onKeyUp(int keyCode, KeyEvent event) { 1435 switch (keyCode) { 1436 case KeyEvent.KEYCODE_FOCUS: 1437 if (mFirstTimeInitialized) { 1438 doFocus(false); 1439 } 1440 return true; 1441 } 1442 return super.onKeyUp(keyCode, event); 1443 } 1444 1445 private void doSnap() { 1446 if (mHeadUpDisplay.collapse()) return; 1447 1448 Log.v(TAG, "doSnap: mFocusState=" + mFocusState); 1449 // If the user has half-pressed the shutter and focus is completed, we 1450 // can take the photo right away. If the focus mode is infinity, we can 1451 // also take the photo. 1452 if (mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1453 || (mFocusState == FOCUS_SUCCESS 1454 || mFocusState == FOCUS_FAIL)) { 1455 mImageCapture.onSnap(); 1456 } else if (mFocusState == FOCUSING) { 1457 // Half pressing the shutter (i.e. the focus button event) will 1458 // already have requested AF for us, so just request capture on 1459 // focus here. 1460 mFocusState = FOCUSING_SNAP_ON_FINISH; 1461 } else if (mFocusState == FOCUS_NOT_STARTED) { 1462 // Focus key down event is dropped for some reasons. Just ignore. 1463 } 1464 } 1465 1466 private void doFocus(boolean pressed) { 1467 // Do the focus if the mode is not infinity. 1468 if (mHeadUpDisplay.collapse()) return; 1469 if (!mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY)) { 1470 if (pressed) { // Focus key down. 1471 autoFocus(); 1472 } else { // Focus key up. 1473 cancelAutoFocus(); 1474 } 1475 } 1476 } 1477 1478 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1479 // Make sure we have a surface in the holder before proceeding. 1480 if (holder.getSurface() == null) { 1481 Log.d(TAG, "holder.getSurface() == null"); 1482 return; 1483 } 1484 1485 // We need to save the holder for later use, even when the mCameraDevice 1486 // is null. This could happen if onResume() is invoked after this 1487 // function. 1488 mSurfaceHolder = holder; 1489 1490 // The mCameraDevice will be null if it fails to connect to the camera 1491 // hardware. In this case we will show a dialog and then finish the 1492 // activity, so it's OK to ignore it. 1493 if (mCameraDevice == null) return; 1494 1495 // Sometimes surfaceChanged is called after onPause or before onResume. 1496 // Ignore it. 1497 if (mPausing || isFinishing()) return; 1498 1499 if (mPreviewing && holder.isCreating()) { 1500 // Set preview display if the surface is being created and preview 1501 // was already started. That means preview display was set to null 1502 // and we need to set it now. 1503 setPreviewDisplay(holder); 1504 } else { 1505 // 1. Restart the preview if the size of surface was changed. The 1506 // framework may not support changing preview display on the fly. 1507 // 2. Start the preview now if surface was destroyed and preview 1508 // stopped. 1509 restartPreview(); 1510 } 1511 1512 // If first time initialization is not finished, send a message to do 1513 // it later. We want to finish surfaceChanged as soon as possible to let 1514 // user see preview first. 1515 if (!mFirstTimeInitialized) { 1516 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1517 } else { 1518 initializeSecondTime(); 1519 } 1520 } 1521 1522 public void surfaceCreated(SurfaceHolder holder) { 1523 } 1524 1525 public void surfaceDestroyed(SurfaceHolder holder) { 1526 stopPreview(); 1527 mSurfaceHolder = null; 1528 } 1529 1530 private void closeCamera() { 1531 if (mCameraDevice != null) { 1532 CameraHolder.instance().release(); 1533 mCameraDevice.setZoomChangeListener(null); 1534 mCameraDevice = null; 1535 mPreviewing = false; 1536 } 1537 } 1538 1539 private void ensureCameraDevice() throws CameraHardwareException { 1540 if (mCameraDevice == null) { 1541 mCameraDevice = CameraHolder.instance().open(); 1542 mInitialParams = mCameraDevice.getParameters(); 1543 } 1544 } 1545 1546 private void updateLastImage() { 1547 IImageList list = ImageManager.makeImageList( 1548 mContentResolver, 1549 dataLocation(), 1550 ImageManager.INCLUDE_IMAGES, 1551 ImageManager.SORT_ASCENDING, 1552 ImageManager.CAMERA_IMAGE_BUCKET_ID); 1553 int count = list.getCount(); 1554 if (count > 0) { 1555 IImage image = list.getImageAt(count - 1); 1556 Uri uri = image.fullSizeImageUri(); 1557 mThumbController.setData(uri, image.miniThumbBitmap()); 1558 } else { 1559 mThumbController.setData(null, null); 1560 } 1561 list.close(); 1562 } 1563 1564 private void showCameraErrorAndFinish() { 1565 Resources ress = getResources(); 1566 Util.showFatalErrorAndFinish(Camera.this, 1567 ress.getString(R.string.camera_error_title), 1568 ress.getString(R.string.cannot_connect_camera)); 1569 } 1570 1571 private void restartPreview() { 1572 try { 1573 startPreview(); 1574 } catch (CameraHardwareException e) { 1575 showCameraErrorAndFinish(); 1576 return; 1577 } 1578 } 1579 1580 private void setPreviewDisplay(SurfaceHolder holder) { 1581 try { 1582 mCameraDevice.setPreviewDisplay(holder); 1583 } catch (Throwable ex) { 1584 closeCamera(); 1585 throw new RuntimeException("setPreviewDisplay failed", ex); 1586 } 1587 } 1588 1589 private void startPreview() throws CameraHardwareException { 1590 if (mPausing || isFinishing()) return; 1591 1592 ensureCameraDevice(); 1593 1594 // If we're previewing already, stop the preview first (this will blank 1595 // the screen). 1596 if (mPreviewing) stopPreview(); 1597 1598 setPreviewDisplay(mSurfaceHolder); 1599 setCameraParameters(UPDATE_PARAM_ALL); 1600 1601 final long wallTimeStart = SystemClock.elapsedRealtime(); 1602 final long threadTimeStart = Debug.threadCpuTimeNanos(); 1603 1604 mCameraDevice.setErrorCallback(mErrorCallback); 1605 1606 try { 1607 Log.v(TAG, "startPreview"); 1608 mCameraDevice.startPreview(); 1609 } catch (Throwable ex) { 1610 closeCamera(); 1611 throw new RuntimeException("startPreview failed", ex); 1612 } 1613 mPreviewing = true; 1614 mZoomState = ZOOM_STOPPED; 1615 mStatus = IDLE; 1616 } 1617 1618 private void stopPreview() { 1619 if (mCameraDevice != null && mPreviewing) { 1620 Log.v(TAG, "stopPreview"); 1621 mCameraDevice.stopPreview(); 1622 } 1623 mPreviewing = false; 1624 // If auto focus was in progress, it would have been canceled. 1625 clearFocusState(); 1626 } 1627 1628 private Size getOptimalPreviewSize(List<Size> sizes, double targetRatio) { 1629 final double ASPECT_TOLERANCE = 0.05; 1630 if (sizes == null) return null; 1631 1632 Size optimalSize = null; 1633 double minDiff = Double.MAX_VALUE; 1634 1635 // Because of bugs of overlay and layout, we sometimes will try to 1636 // layout the viewfinder in the portrait orientation and thus get the 1637 // wrong size of mSurfaceView. When we change the preview size, the 1638 // new overlay will be created before the old one closed, which causes 1639 // an exception. For now, just get the screen size 1640 1641 Display display = getWindowManager().getDefaultDisplay(); 1642 int targetHeight = Math.min(display.getHeight(), display.getWidth()); 1643 1644 if (targetHeight <= 0) { 1645 // We don't know the size of SurefaceView, use screen height 1646 WindowManager windowManager = (WindowManager) 1647 getSystemService(Context.WINDOW_SERVICE); 1648 targetHeight = windowManager.getDefaultDisplay().getHeight(); 1649 } 1650 1651 // Try to find an size match aspect ratio and size 1652 for (Size size : sizes) { 1653 double ratio = (double) size.width / size.height; 1654 if (Math.abs(ratio - targetRatio) > ASPECT_TOLERANCE) continue; 1655 if (Math.abs(size.height - targetHeight) < minDiff) { 1656 optimalSize = size; 1657 minDiff = Math.abs(size.height - targetHeight); 1658 } 1659 } 1660 1661 // Cannot find the one match the aspect ratio, ignore the requirement 1662 if (optimalSize == null) { 1663 Log.v(TAG, "No preview size match the aspect ratio"); 1664 minDiff = Double.MAX_VALUE; 1665 for (Size size : sizes) { 1666 if (Math.abs(size.height - targetHeight) < minDiff) { 1667 optimalSize = size; 1668 minDiff = Math.abs(size.height - targetHeight); 1669 } 1670 } 1671 } 1672 return optimalSize; 1673 } 1674 1675 private static boolean isSupported(String value, List<String> supported) { 1676 return supported == null ? false : supported.indexOf(value) >= 0; 1677 } 1678 1679 private void updateCameraParametersInitialize() { 1680 // Reset preview frame rate to the maximum because it may be lowered by 1681 // video camera application. 1682 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1683 if (frameRates != null) { 1684 Integer max = Collections.max(frameRates); 1685 mParameters.setPreviewFrameRate(max); 1686 } 1687 1688 } 1689 1690 private void updateCameraParametersZoom() { 1691 // Set zoom. 1692 if (mParameters.isZoomSupported()) { 1693 mParameters.setZoom(mZoomValue); 1694 } 1695 } 1696 1697 private void updateCameraParametersPreference() { 1698 // Set picture size. 1699 String pictureSize = mPreferences.getString( 1700 CameraSettings.KEY_PICTURE_SIZE, null); 1701 if (pictureSize == null) { 1702 CameraSettings.initialCameraPictureSize(this, mParameters); 1703 } else { 1704 List<Size> supported = mParameters.getSupportedPictureSizes(); 1705 CameraSettings.setCameraPictureSize( 1706 pictureSize, supported, mParameters); 1707 } 1708 1709 // Set the preview frame aspect ratio according to the picture size. 1710 Size size = mParameters.getPictureSize(); 1711 PreviewFrameLayout frameLayout = 1712 (PreviewFrameLayout) findViewById(R.id.frame_layout); 1713 frameLayout.setAspectRatio((double) size.width / size.height); 1714 1715 // Set a preview size that is closest to the viewfinder height and has 1716 // the right aspect ratio. 1717 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1718 Size optimalSize = getOptimalPreviewSize( 1719 sizes, (double) size.width / size.height); 1720 if (optimalSize != null) { 1721 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1722 } 1723 1724 // Since change scene mode may change supported values, 1725 // Set scene mode first, 1726 String sceneMode = mPreferences.getString( 1727 CameraSettings.KEY_SCENE_MODE, 1728 getString(R.string.pref_camera_scenemode_default)); 1729 if (isSupported(sceneMode, mParameters.getSupportedSceneModes())) { 1730 if (!mParameters.getSceneMode().equals(sceneMode)) { 1731 mParameters.setSceneMode(sceneMode); 1732 mCameraDevice.setParameters(mParameters); 1733 1734 // Setting scene mode will change the settings of flash mode, 1735 // white balance, and focus mode. Here we read back the 1736 // parameters, so we can know those settings. 1737 mParameters = mCameraDevice.getParameters(); 1738 } 1739 } else { 1740 sceneMode = mParameters.getSceneMode(); 1741 if (sceneMode == null) { 1742 sceneMode = Parameters.SCENE_MODE_AUTO; 1743 } 1744 } 1745 1746 // Set JPEG quality. 1747 String jpegQuality = mPreferences.getString( 1748 CameraSettings.KEY_JPEG_QUALITY, 1749 getString(R.string.pref_camera_jpegquality_default)); 1750 mParameters.setJpegQuality(JpegEncodingQualityMappings.getQualityNumber(jpegQuality)); 1751 1752 // For the following settings, we need to check if the settings are 1753 // still supported by latest driver, if not, ignore the settings. 1754 1755 // Set color effect parameter. 1756 String colorEffect = mPreferences.getString( 1757 CameraSettings.KEY_COLOR_EFFECT, 1758 getString(R.string.pref_camera_coloreffect_default)); 1759 if (isSupported(colorEffect, mParameters.getSupportedColorEffects())) { 1760 mParameters.setColorEffect(colorEffect); 1761 } 1762 1763 // Set exposure compensation 1764 String exposure = mPreferences.getString( 1765 CameraSettings.KEY_EXPOSURE, 1766 getString(R.string.pref_exposure_default)); 1767 try { 1768 int value = Integer.parseInt(exposure); 1769 int max = mParameters.getMaxExposureCompensation(); 1770 int min = mParameters.getMinExposureCompensation(); 1771 if (value >= min && value <= max) { 1772 mParameters.setExposureCompensation(value); 1773 } else { 1774 Log.w(TAG, "invalid exposure range: " + exposure); 1775 } 1776 } catch (NumberFormatException e) { 1777 Log.w(TAG, "invalid exposure: " + exposure); 1778 } 1779 1780 // If scene mode is set, we cannot set flash mode, white balance, and 1781 // focus mode, instead, we read it from driver 1782 if (!Parameters.SCENE_MODE_AUTO.equals(sceneMode)) { 1783 final String flashMode = mParameters.getFlashMode(); 1784 final String whiteBalance = mParameters.getWhiteBalance(); 1785 mFocusMode = mParameters.getFocusMode(); 1786 1787 if (mHeadUpDisplay != null) { 1788 mGLRootView.queueEvent(new Runnable() { 1789 public void run() { 1790 mHeadUpDisplay.overrideSettings( 1791 CameraSettings.KEY_FLASH_MODE, flashMode); 1792 mHeadUpDisplay.overrideSettings( 1793 CameraSettings.KEY_WHITE_BALANCE, whiteBalance); 1794 mHeadUpDisplay.overrideSettings( 1795 CameraSettings.KEY_FOCUS_MODE, mFocusMode); 1796 }}); 1797 } 1798 } else { 1799 if (mHeadUpDisplay != null) { 1800 mGLRootView.queueEvent(new Runnable() { 1801 public void run() { 1802 mHeadUpDisplay.overrideSettings( 1803 CameraSettings.KEY_FLASH_MODE, null); 1804 mHeadUpDisplay.overrideSettings( 1805 CameraSettings.KEY_FOCUS_MODE, null); 1806 mHeadUpDisplay.overrideSettings( 1807 CameraSettings.KEY_WHITE_BALANCE, null); 1808 }}); 1809 } 1810 1811 // Set flash mode. 1812 String flashMode = mPreferences.getString( 1813 CameraSettings.KEY_FLASH_MODE, 1814 getString(R.string.pref_camera_flashmode_default)); 1815 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 1816 if (isSupported(flashMode, supportedFlash)) { 1817 mParameters.setFlashMode(flashMode); 1818 } else { 1819 flashMode = mParameters.getFlashMode(); 1820 if (flashMode == null) { 1821 flashMode = getString( 1822 R.string.pref_camera_flashmode_no_flash); 1823 } 1824 } 1825 1826 // Set white balance parameter. 1827 String whiteBalance = mPreferences.getString( 1828 CameraSettings.KEY_WHITE_BALANCE, 1829 getString(R.string.pref_camera_whitebalance_default)); 1830 if (isSupported(whiteBalance, 1831 mParameters.getSupportedWhiteBalance())) { 1832 mParameters.setWhiteBalance(whiteBalance); 1833 } else { 1834 whiteBalance = mParameters.getWhiteBalance(); 1835 if (whiteBalance == null) { 1836 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 1837 } 1838 } 1839 1840 // Set focus mode. 1841 mFocusMode = mPreferences.getString( 1842 CameraSettings.KEY_FOCUS_MODE, 1843 getString(R.string.pref_camera_focusmode_default)); 1844 if (isSupported(mFocusMode, mParameters.getSupportedFocusModes())) { 1845 mParameters.setFocusMode(mFocusMode); 1846 } else { 1847 mFocusMode = mParameters.getFocusMode(); 1848 if (mFocusMode == null) { 1849 mFocusMode = Parameters.FOCUS_MODE_AUTO; 1850 } 1851 } 1852 } 1853 } 1854 1855 // We separate the parameters into several subsets, so we can update only 1856 // the subsets actually need updating. The PREFERENCE set needs extra 1857 // locking because the preference can be changed from GLThread as well. 1858 private void setCameraParameters(int updateSet) { 1859 mParameters = mCameraDevice.getParameters(); 1860 1861 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 1862 updateCameraParametersInitialize(); 1863 } 1864 1865 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 1866 updateCameraParametersZoom(); 1867 } 1868 1869 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 1870 synchronized (mPreferences) { 1871 updateCameraParametersPreference(); 1872 } 1873 } 1874 1875 mCameraDevice.setParameters(mParameters); 1876 } 1877 1878 // If the Camera is idle, update the parameters immediately, otherwise 1879 // accumulate them in mUpdateSet and update later. 1880 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 1881 mUpdateSet |= additionalUpdateSet; 1882 if (mCameraDevice == null) { 1883 // We will update all the parameters when we open the device, so 1884 // we don't need to do anything now. 1885 mUpdateSet = 0; 1886 return; 1887 } else if (isCameraIdle()) { 1888 setCameraParameters(mUpdateSet); 1889 mUpdateSet = 0; 1890 } else { 1891 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 1892 mHandler.sendEmptyMessageDelayed( 1893 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 1894 } 1895 } 1896 } 1897 1898 private void gotoGallery() { 1899 MenuHelper.gotoCameraImageGallery(this); 1900 } 1901 1902 private void viewLastImage() { 1903 if (mThumbController.isUriValid()) { 1904 Intent intent = new Intent(Util.REVIEW_ACTION, mThumbController.getUri()); 1905 try { 1906 startActivity(intent); 1907 } catch (ActivityNotFoundException ex) { 1908 Log.e(TAG, "review image fail", ex); 1909 } 1910 } else { 1911 Log.e(TAG, "Can't view last image."); 1912 } 1913 } 1914 1915 private void startReceivingLocationUpdates() { 1916 if (mLocationManager != null) { 1917 try { 1918 mLocationManager.requestLocationUpdates( 1919 LocationManager.NETWORK_PROVIDER, 1920 1000, 1921 0F, 1922 mLocationListeners[1]); 1923 } catch (java.lang.SecurityException ex) { 1924 Log.i(TAG, "fail to request location update, ignore", ex); 1925 } catch (IllegalArgumentException ex) { 1926 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1927 } 1928 try { 1929 mLocationManager.requestLocationUpdates( 1930 LocationManager.GPS_PROVIDER, 1931 1000, 1932 0F, 1933 mLocationListeners[0]); 1934 } catch (java.lang.SecurityException ex) { 1935 Log.i(TAG, "fail to request location update, ignore", ex); 1936 } catch (IllegalArgumentException ex) { 1937 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1938 } 1939 } 1940 } 1941 1942 private void stopReceivingLocationUpdates() { 1943 if (mLocationManager != null) { 1944 for (int i = 0; i < mLocationListeners.length; i++) { 1945 try { 1946 mLocationManager.removeUpdates(mLocationListeners[i]); 1947 } catch (Exception ex) { 1948 Log.i(TAG, "fail to remove location listners, ignore", ex); 1949 } 1950 } 1951 } 1952 } 1953 1954 private Location getCurrentLocation() { 1955 // go in best to worst order 1956 for (int i = 0; i < mLocationListeners.length; i++) { 1957 Location l = mLocationListeners[i].current(); 1958 if (l != null) return l; 1959 } 1960 return null; 1961 } 1962 1963 private boolean isCameraIdle() { 1964 return mStatus == IDLE && mFocusState == FOCUS_NOT_STARTED; 1965 } 1966 1967 private boolean isImageCaptureIntent() { 1968 String action = getIntent().getAction(); 1969 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 1970 } 1971 1972 private void setupCaptureParams() { 1973 Bundle myExtras = getIntent().getExtras(); 1974 if (myExtras != null) { 1975 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 1976 mCropValue = myExtras.getString("crop"); 1977 } 1978 } 1979 1980 private void showPostCaptureAlert() { 1981 if (mIsImageCaptureIntent) { 1982 findViewById(R.id.shutter_button).setVisibility(View.INVISIBLE); 1983 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1984 for (int id : pickIds) { 1985 View button = findViewById(id); 1986 ((View) button.getParent()).setVisibility(View.VISIBLE); 1987 } 1988 } 1989 } 1990 1991 private void hidePostCaptureAlert() { 1992 if (mIsImageCaptureIntent) { 1993 findViewById(R.id.shutter_button).setVisibility(View.VISIBLE); 1994 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1995 for (int id : pickIds) { 1996 View button = findViewById(id); 1997 ((View) button.getParent()).setVisibility(View.GONE); 1998 } 1999 } 2000 } 2001 2002 private int calculatePicturesRemaining() { 2003 mPicturesRemaining = MenuHelper.calculatePicturesRemaining(); 2004 return mPicturesRemaining; 2005 } 2006 2007 @Override 2008 public boolean onPrepareOptionsMenu(Menu menu) { 2009 super.onPrepareOptionsMenu(menu); 2010 // Only show the menu when camera is idle. 2011 for (int i = 0; i < menu.size(); i++) { 2012 menu.getItem(i).setVisible(isCameraIdle()); 2013 } 2014 2015 return true; 2016 } 2017 2018 @Override 2019 public boolean onCreateOptionsMenu(Menu menu) { 2020 super.onCreateOptionsMenu(menu); 2021 2022 if (mIsImageCaptureIntent) { 2023 // No options menu for attach mode. 2024 return false; 2025 } else { 2026 addBaseMenuItems(menu); 2027 } 2028 return true; 2029 } 2030 2031 private void addBaseMenuItems(Menu menu) { 2032 MenuHelper.addSwitchModeMenuItem(menu, true, new Runnable() { 2033 public void run() { 2034 switchToVideoMode(); 2035 } 2036 }); 2037 MenuItem gallery = menu.add(Menu.NONE, Menu.NONE, 2038 MenuHelper.POSITION_GOTO_GALLERY, 2039 R.string.camera_gallery_photos_text) 2040 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2041 public boolean onMenuItemClick(MenuItem item) { 2042 gotoGallery(); 2043 return true; 2044 } 2045 }); 2046 gallery.setIcon(android.R.drawable.ic_menu_gallery); 2047 mGalleryItems.add(gallery); 2048 } 2049 2050 private boolean switchToVideoMode() { 2051 if (isFinishing() || !isCameraIdle()) return false; 2052 MenuHelper.gotoVideoMode(this); 2053 ((ViewGroup) mGLRootView.getParent()).removeView(mGLRootView); 2054 mHandler.removeMessages(FIRST_TIME_INIT); 2055 finish(); 2056 return true; 2057 } 2058 2059 public boolean onSwitchChanged(Switcher source, boolean onOff) { 2060 if (onOff == SWITCH_VIDEO) { 2061 return switchToVideoMode(); 2062 } else { 2063 return true; 2064 } 2065 } 2066 2067 private void onSharedPreferenceChanged() { 2068 // ignore the events after "onPause()" 2069 if (mPausing) return; 2070 2071 boolean recordLocation; 2072 2073 synchronized (mPreferences) { 2074 recordLocation = RecordLocationPreference.get( 2075 mPreferences, getContentResolver()); 2076 mQuickCapture = getQuickCaptureSettings(); 2077 } 2078 2079 if (mRecordLocation != recordLocation) { 2080 if (mRecordLocation) { 2081 startReceivingLocationUpdates(); 2082 } else { 2083 stopReceivingLocationUpdates(); 2084 } 2085 } 2086 2087 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 2088 } 2089 2090 private boolean getQuickCaptureSettings() { 2091 String value = mPreferences.getString( 2092 CameraSettings.KEY_QUICK_CAPTURE, 2093 getString(R.string.pref_camera_quickcapture_default)); 2094 return CameraSettings.QUICK_CAPTURE_ON.equals(value); 2095 } 2096 2097 @Override 2098 public void onUserInteraction() { 2099 super.onUserInteraction(); 2100 keepScreenOnAwhile(); 2101 } 2102 2103 private void resetScreenOn() { 2104 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2105 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2106 } 2107 2108 private void keepScreenOnAwhile() { 2109 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2110 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2111 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2112 } 2113 2114 private class MyHeadUpDisplayListener implements HeadUpDisplay.Listener { 2115 2116 // The callback functions here will be called from the GLThread. So, 2117 // we need to post these runnables to the main thread 2118 public void onSharedPreferencesChanged() { 2119 mHandler.post(new Runnable() { 2120 public void run() { 2121 Camera.this.onSharedPreferenceChanged(); 2122 } 2123 }); 2124 } 2125 2126 public void onRestorePreferencesClicked() { 2127 mHandler.post(new Runnable() { 2128 public void run() { 2129 Camera.this.onRestorePreferencesClicked(); 2130 } 2131 }); 2132 } 2133 2134 public void onPopupWindowVisibilityChanged(int visibility) { 2135 } 2136 } 2137 2138 protected void onRestorePreferencesClicked() { 2139 if (mPausing) return; 2140 Runnable runnable = new Runnable() { 2141 public void run() { 2142 mHeadUpDisplay.restorePreferences(mParameters); 2143 } 2144 }; 2145 MenuHelper.confirmAction(this, 2146 getString(R.string.confirm_restore_title), 2147 getString(R.string.confirm_restore_message), 2148 runnable); 2149 } 2150} 2151 2152class FocusRectangle extends View { 2153 2154 @SuppressWarnings("unused") 2155 private static final String TAG = "FocusRectangle"; 2156 2157 public FocusRectangle(Context context, AttributeSet attrs) { 2158 super(context, attrs); 2159 } 2160 2161 private void setDrawable(int resid) { 2162 setBackgroundDrawable(getResources().getDrawable(resid)); 2163 } 2164 2165 public void showStart() { 2166 setDrawable(R.drawable.focus_focusing); 2167 } 2168 2169 public void showSuccess() { 2170 setDrawable(R.drawable.focus_focused); 2171 } 2172 2173 public void showFail() { 2174 setDrawable(R.drawable.focus_focus_failed); 2175 } 2176 2177 public void clear() { 2178 setBackgroundDrawable(null); 2179 } 2180} 2181 2182/* 2183 * Provide a mapping for Jpeg encoding quality levels 2184 * from String representation to numeric representation. 2185 */ 2186class JpegEncodingQualityMappings { 2187 private static final String TAG = "JpegEncodingQualityMappings"; 2188 private static final int DEFAULT_QUALITY = 85; 2189 private static HashMap<String, Integer> mHashMap = 2190 new HashMap<String, Integer>(); 2191 2192 static { 2193 mHashMap.put("normal", CameraProfile.QUALITY_LOW); 2194 mHashMap.put("fine", CameraProfile.QUALITY_MEDIUM); 2195 mHashMap.put("superfine", CameraProfile.QUALITY_HIGH); 2196 }; 2197 2198 // Retrieve and return the Jpeg encoding quality number 2199 // for the given quality level. 2200 public static int getQualityNumber(String jpegQuality) { 2201 Integer quality = mHashMap.get(jpegQuality); 2202 if (quality == null) { 2203 Log.w(TAG, "Unknown Jpeg quality: " + jpegQuality); 2204 return DEFAULT_QUALITY; 2205 } 2206 return CameraProfile.getJpegEncodingQualityParameter(quality.intValue()); 2207 } 2208} 2209