Camera.java revision ae7c3e5050bd58f57bd107cf3205f960988543fe
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.List; 88 89/** The Camera activity which can preview and take pictures. */ 90public class Camera extends NoSearchActivity implements View.OnClickListener, 91 ShutterButton.OnShutterButtonListener, SurfaceHolder.Callback, 92 Switcher.OnSwitchListener { 93 94 private static final String TAG = "camera"; 95 96 private static final int CROP_MSG = 1; 97 private static final int FIRST_TIME_INIT = 2; 98 private static final int RESTART_PREVIEW = 3; 99 private static final int CLEAR_SCREEN_DELAY = 4; 100 private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 5; 101 102 // The subset of parameters we need to update in setCameraParameters(). 103 private static final int UPDATE_PARAM_INITIALIZE = 1; 104 private static final int UPDATE_PARAM_ZOOM = 2; 105 private static final int UPDATE_PARAM_PREFERENCE = 4; 106 private static final int UPDATE_PARAM_ALL = -1; 107 108 // When setCameraParametersWhenIdle() is called, we accumulate the subsets 109 // needed to be updated in mUpdateSet. 110 private int mUpdateSet; 111 112 // The brightness settings used when it is set to automatic in the system. 113 // The reason why it is set to 0.7 is just because 1.0 is too bright. 114 private static final float DEFAULT_CAMERA_BRIGHTNESS = 0.7f; 115 116 private static final int SCREEN_DELAY = 2 * 60 * 1000; 117 private static final int FOCUS_BEEP_VOLUME = 100; 118 119 120 private static final int ZOOM_STOPPED = 0; 121 private static final int ZOOM_START = 1; 122 private static final int ZOOM_STOPPING = 2; 123 124 private int mZoomState = ZOOM_STOPPED; 125 private boolean mSmoothZoomSupported = false; 126 private int mZoomValue; // The current zoom value. 127 private int mZoomMax; 128 private int mTargetZoomValue; 129 130 private Parameters mParameters; 131 private Parameters mInitialParams; 132 133 private OrientationEventListener mOrientationListener; 134 private int mLastOrientation = 0; // No rotation (landscape) by default. 135 private SharedPreferences mPreferences; 136 137 private static final int IDLE = 1; 138 private static final int SNAPSHOT_IN_PROGRESS = 2; 139 140 private static final boolean SWITCH_CAMERA = true; 141 private static final boolean SWITCH_VIDEO = false; 142 143 private int mStatus = IDLE; 144 private static final String sTempCropFilename = "crop-temp"; 145 146 private android.hardware.Camera mCameraDevice; 147 private ContentProviderClient mMediaProviderClient; 148 private SurfaceView mSurfaceView; 149 private SurfaceHolder mSurfaceHolder = null; 150 private ShutterButton mShutterButton; 151 private FocusRectangle mFocusRectangle; 152 private ToneGenerator mFocusToneGenerator; 153 private GestureDetector mGestureDetector; 154 private Switcher mSwitcher; 155 private boolean mStartPreviewFail = false; 156 157 private GLRootView mGLRootView; 158 159 // mPostCaptureAlert, mLastPictureButton, mThumbController 160 // are non-null only if isImageCaptureIntent() is true. 161 private ImageView mLastPictureButton; 162 private ThumbnailController mThumbController; 163 164 // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. 165 private String mCropValue; 166 private Uri mSaveUri; 167 168 private ImageCapture mImageCapture = null; 169 170 private boolean mPreviewing; 171 private boolean mPausing; 172 private boolean mFirstTimeInitialized; 173 private boolean mIsImageCaptureIntent; 174 private boolean mRecordLocation; 175 176 private static final int FOCUS_NOT_STARTED = 0; 177 private static final int FOCUSING = 1; 178 private static final int FOCUSING_SNAP_ON_FINISH = 2; 179 private static final int FOCUS_SUCCESS = 3; 180 private static final int FOCUS_FAIL = 4; 181 private int mFocusState = FOCUS_NOT_STARTED; 182 183 private ContentResolver mContentResolver; 184 private boolean mDidRegister = false; 185 186 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 187 188 private LocationManager mLocationManager = null; 189 190 // Use OneShotPreviewCallback to measure the time between 191 // JpegPictureCallback and preview. 192 private final OneShotPreviewCallback mOneShotPreviewCallback = 193 new OneShotPreviewCallback(); 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 ZoomCallback mZoomCallback = new ZoomCallback(); 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 mJpegCallbackToFirstFrameTime; 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; 227 228 private final Handler mHandler = new MainHandler(); 229 private boolean mQuickCapture; 230 private CameraHeadUpDisplay mHeadUpDisplay; 231 232 /** 233 * This Handler is used to post message back onto the main thread of the 234 * application 235 */ 236 private class MainHandler extends Handler { 237 @Override 238 public void handleMessage(Message msg) { 239 switch (msg.what) { 240 case RESTART_PREVIEW: { 241 restartPreview(); 242 break; 243 } 244 245 case CLEAR_SCREEN_DELAY: { 246 getWindow().clearFlags( 247 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 248 break; 249 } 250 251 case FIRST_TIME_INIT: { 252 initializeFirstTime(); 253 break; 254 } 255 256 case SET_CAMERA_PARAMETERS_WHEN_IDLE: { 257 setCameraParametersWhenIdle(0); 258 break; 259 } 260 } 261 } 262 } 263 264 private void resetExposureCompensation() { 265 String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, 266 CameraSettings.EXPOSURE_DEFAULT_VALUE); 267 if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { 268 Editor editor = mPreferences.edit(); 269 editor.putString(CameraSettings.KEY_EXPOSURE, "0"); 270 editor.commit(); 271 if (mHeadUpDisplay != null) { 272 mHeadUpDisplay.reloadPreferences(); 273 } 274 } 275 } 276 277 private void keepMediaProviderInstance() { 278 // We want to keep a reference to MediaProvider in camera's lifecycle. 279 // TODO: Utilize mMediaProviderClient instance to replace 280 // ContentResolver calls. 281 if (mMediaProviderClient == null) { 282 mMediaProviderClient = getContentResolver() 283 .acquireContentProviderClient(MediaStore.AUTHORITY); 284 } 285 } 286 287 // Snapshots can only be taken after this is called. It should be called 288 // once only. We could have done these things in onCreate() but we want to 289 // make preview screen appear as soon as possible. 290 private void initializeFirstTime() { 291 if (mFirstTimeInitialized) return; 292 293 // Create orientation listenter. This should be done first because it 294 // takes some time to get first orientation. 295 mOrientationListener = new OrientationEventListener(Camera.this) { 296 @Override 297 public void onOrientationChanged(int orientation) { 298 // We keep the last known orientation. So if the user 299 // first orient the camera then point the camera to 300 if (orientation != ORIENTATION_UNKNOWN) { 301 orientation += 90; 302 } 303 orientation = ImageManager.roundOrientation(orientation); 304 if (orientation != mLastOrientation) { 305 mLastOrientation = orientation; 306 if (!mIsImageCaptureIntent) { 307 setOrientationIndicator(mLastOrientation); 308 } 309 mGLRootView.queueEvent(new Runnable() { 310 public void run() { 311 mHeadUpDisplay.setOrientation(mLastOrientation); 312 } 313 }); 314 } 315 } 316 }; 317 mOrientationListener.enable(); 318 319 // Initialize location sevice. 320 mLocationManager = (LocationManager) 321 getSystemService(Context.LOCATION_SERVICE); 322 mRecordLocation = RecordLocationPreference.get( 323 mPreferences, getContentResolver()); 324 if (mRecordLocation) startReceivingLocationUpdates(); 325 326 keepMediaProviderInstance(); 327 checkStorage(); 328 329 // Initialize last picture button. 330 mContentResolver = getContentResolver(); 331 if (!mIsImageCaptureIntent) { 332 findViewById(R.id.camera_switch).setOnClickListener(this); 333 mLastPictureButton = 334 (ImageView) findViewById(R.id.review_thumbnail); 335 mLastPictureButton.setOnClickListener(this); 336 mThumbController = new ThumbnailController( 337 getResources(), mLastPictureButton, mContentResolver); 338 mThumbController.loadData(ImageManager.getLastImageThumbPath()); 339 // Update last image thumbnail. 340 updateThumbnailButton(); 341 } 342 343 // Initialize shutter button. 344 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 345 mShutterButton.setOnShutterButtonListener(this); 346 mShutterButton.setVisibility(View.VISIBLE); 347 348 mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); 349 updateFocusIndicator(); 350 351 ImageManager.ensureOSXCompatibleFolder(); 352 353 initializeScreenBrightness(); 354 355 installIntentFilter(); 356 357 initializeFocusTone(); 358 359 mHeadUpDisplay = new CameraHeadUpDisplay(this); 360 CameraSettings settings = new CameraSettings(this, mInitialParams); 361 mHeadUpDisplay.initialize(this, 362 settings.getPreferenceGroup(R.xml.camera_preferences)); 363 mHeadUpDisplay.setListener(new MyHeadUpDisplayListener()); 364 mGLRootView.setContentPane(mHeadUpDisplay); 365 initializeZoom(); 366 mFirstTimeInitialized = true; 367 } 368 369 private void updateThumbnailButton() { 370 // Update last image if URI is invalid and the storage is ready. 371 if (!mThumbController.isUriValid() && mPicturesRemaining >= 0) { 372 updateLastImage(); 373 } 374 mThumbController.updateDisplayIfNeeded(); 375 } 376 377 // If the activity is paused and resumed, this method will be called in 378 // onResume. 379 private void initializeSecondTime() { 380 // Start orientation listener as soon as possible because it takes 381 // some time to get first orientation. 382 mOrientationListener.enable(); 383 384 // Start location update if needed. 385 synchronized (mPreferences) { 386 mRecordLocation = RecordLocationPreference.get( 387 mPreferences, getContentResolver()); 388 } 389 if (mRecordLocation) startReceivingLocationUpdates(); 390 391 installIntentFilter(); 392 393 initializeFocusTone(); 394 395 keepMediaProviderInstance(); 396 checkStorage(); 397 398 mCameraDevice.setZoomCallback(mZoomCallback); 399 400 if (!mIsImageCaptureIntent) { 401 updateThumbnailButton(); 402 } 403 } 404 405 private void initializeZoom() { 406 if (!mParameters.isZoomSupported()) return; 407 408 // Maximum zoom value may change after preview size is set. Get the 409 // latest parameters here. 410 mParameters = mCameraDevice.getParameters(); 411 mZoomMax = mParameters.getMaxZoom(); 412 mSmoothZoomSupported = mParameters.isSmoothZoomSupported(); 413 mGestureDetector = new GestureDetector(this, new ZoomGestureListener()); 414 415 mCameraDevice.setZoomCallback(mZoomCallback); 416 417 mHeadUpDisplay.setZoomRatios(getZoomRatios()); 418 mHeadUpDisplay.setZoomIndex(mZoomValue); 419 420 mHeadUpDisplay.setZoomListener(new ZoomController.ZoomListener() { 421 public void onZoomChanged( 422 final int index, float ratio, boolean isMoving) { 423 mHandler.post(new Runnable() { 424 public void run() { 425 onZoomValueChanged(index); 426 } 427 }); 428 } 429 }); 430 } 431 432 private void onZoomValueChanged(int index) { 433 if (mSmoothZoomSupported) { 434 if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { 435 mTargetZoomValue = index; 436 if (mZoomState == ZOOM_START) { 437 mZoomState = ZOOM_STOPPING; 438 mCameraDevice.stopSmoothZoom(); 439 } 440 } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { 441 mTargetZoomValue = index; 442 mCameraDevice.startSmoothZoom(index); 443 mZoomState = ZOOM_START; 444 } 445 } else { 446 mZoomValue = index; 447 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 448 } 449 } 450 451 private float[] getZoomRatios() { 452 List<Integer> zoomRatios = mParameters.getZoomRatios(); 453 if (zoomRatios != null) { 454 float result[] = new float[zoomRatios.size()]; 455 for (int i = 0, n = result.length; i < n; ++i) { 456 result[i] = (float) zoomRatios.get(i) / 100f; 457 } 458 return result; 459 } else { 460 //1.0, 1.2, 1.44, 1.6, 1.8, 2.0 461 float result[] = new float[mZoomMax + 1]; 462 for (int i = 0, n = result.length; i < n; ++i) { 463 result[i] = 1 + i * 0.2f; 464 } 465 return result; 466 } 467 } 468 469 private class ZoomGestureListener extends 470 GestureDetector.SimpleOnGestureListener { 471 472 @Override 473 public boolean onDoubleTap(MotionEvent e) { 474 // Perform zoom only when preview is started and snapshot is not in 475 // progress. 476 if (mPausing || !isCameraIdle() || !mPreviewing 477 || mHeadUpDisplay == null || mZoomState != ZOOM_STOPPED) { 478 return false; 479 } 480 481 if (mZoomValue < mZoomMax) { 482 // Zoom in to the maximum. 483 mZoomValue = mZoomMax; 484 } else { 485 mZoomValue = 0; 486 } 487 488 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 489 490 mHeadUpDisplay.setZoomIndex(mZoomValue); 491 return true; 492 } 493 } 494 495 @Override 496 public boolean dispatchTouchEvent(MotionEvent m) { 497 if (!super.dispatchTouchEvent(m) && mGestureDetector != null) { 498 return mGestureDetector.onTouchEvent(m); 499 } 500 return true; 501 } 502 503 LocationListener [] mLocationListeners = new LocationListener[] { 504 new LocationListener(LocationManager.GPS_PROVIDER), 505 new LocationListener(LocationManager.NETWORK_PROVIDER) 506 }; 507 508 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 509 @Override 510 public void onReceive(Context context, Intent intent) { 511 String action = intent.getAction(); 512 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 513 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 514 || action.equals(Intent.ACTION_MEDIA_CHECKING) 515 || action.equals(Intent.ACTION_MEDIA_SCANNER_STARTED)) { 516 checkStorage(); 517 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 518 checkStorage(); 519 if (!mIsImageCaptureIntent) { 520 updateThumbnailButton(); 521 } 522 } 523 } 524 }; 525 526 private class LocationListener 527 implements android.location.LocationListener { 528 Location mLastLocation; 529 boolean mValid = false; 530 String mProvider; 531 532 public LocationListener(String provider) { 533 mProvider = provider; 534 mLastLocation = new Location(mProvider); 535 } 536 537 public void onLocationChanged(Location newLocation) { 538 if (newLocation.getLatitude() == 0.0 539 && newLocation.getLongitude() == 0.0) { 540 // Hack to filter out 0.0,0.0 locations 541 return; 542 } 543 // If GPS is available before start camera, we won't get status 544 // update so update GPS indicator when we receive data. 545 if (mRecordLocation 546 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 547 if (mHeadUpDisplay != null) { 548 mHeadUpDisplay.setGpsHasSignal(true); 549 } 550 } 551 mLastLocation.set(newLocation); 552 mValid = true; 553 } 554 555 public void onProviderEnabled(String provider) { 556 } 557 558 public void onProviderDisabled(String provider) { 559 mValid = false; 560 } 561 562 public void onStatusChanged( 563 String provider, int status, Bundle extras) { 564 switch(status) { 565 case LocationProvider.OUT_OF_SERVICE: 566 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 567 mValid = false; 568 if (mRecordLocation && 569 LocationManager.GPS_PROVIDER.equals(provider)) { 570 if (mHeadUpDisplay != null) { 571 mHeadUpDisplay.setGpsHasSignal(false); 572 } 573 } 574 break; 575 } 576 } 577 } 578 579 public Location current() { 580 return mValid ? mLastLocation : null; 581 } 582 } 583 584 private final class OneShotPreviewCallback 585 implements android.hardware.Camera.PreviewCallback { 586 public void onPreviewFrame(byte[] data, 587 android.hardware.Camera camera) { 588 long now = System.currentTimeMillis(); 589 if (mJpegPictureCallbackTime != 0) { 590 mJpegCallbackToFirstFrameTime = now - mJpegPictureCallbackTime; 591 Log.v(TAG, "mJpegCallbackToFirstFrameTime = " 592 + mJpegCallbackToFirstFrameTime + "ms"); 593 mJpegPictureCallbackTime = 0; 594 } else { 595 Log.v(TAG, "Got first frame"); 596 } 597 } 598 } 599 600 private final class ShutterCallback 601 implements android.hardware.Camera.ShutterCallback { 602 public void onShutter() { 603 mShutterCallbackTime = System.currentTimeMillis(); 604 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 605 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 606 clearFocusState(); 607 } 608 } 609 610 private final class PostViewPictureCallback implements PictureCallback { 611 public void onPictureTaken( 612 byte [] data, android.hardware.Camera camera) { 613 mPostViewPictureCallbackTime = System.currentTimeMillis(); 614 Log.v(TAG, "mShutterToPostViewCallbackTime = " 615 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 616 + "ms"); 617 } 618 } 619 620 private final class RawPictureCallback implements PictureCallback { 621 public void onPictureTaken( 622 byte [] rawData, android.hardware.Camera camera) { 623 mRawPictureCallbackTime = System.currentTimeMillis(); 624 Log.v(TAG, "mShutterToRawCallbackTime = " 625 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 626 } 627 } 628 629 private final class JpegPictureCallback implements PictureCallback { 630 Location mLocation; 631 632 public JpegPictureCallback(Location loc) { 633 mLocation = loc; 634 } 635 636 public void onPictureTaken( 637 final byte [] jpegData, final android.hardware.Camera camera) { 638 if (mPausing) { 639 return; 640 } 641 642 mJpegPictureCallbackTime = System.currentTimeMillis(); 643 // If postview callback has arrived, the captured image is displayed 644 // in postview callback. If not, the captured image is displayed in 645 // raw picture callback. 646 if (mPostViewPictureCallbackTime != 0) { 647 mShutterToPictureDisplayedTime = 648 mPostViewPictureCallbackTime - mShutterCallbackTime; 649 mPictureDisplayedToJpegCallbackTime = 650 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 651 } else { 652 mShutterToPictureDisplayedTime = 653 mRawPictureCallbackTime - mShutterCallbackTime; 654 mPictureDisplayedToJpegCallbackTime = 655 mJpegPictureCallbackTime - mRawPictureCallbackTime; 656 } 657 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 658 + mPictureDisplayedToJpegCallbackTime + "ms"); 659 mHeadUpDisplay.setEnabled(true); 660 661 if (!mIsImageCaptureIntent) { 662 // We want to show the taken picture for a while, so we wait 663 // for at least 1.2 second before restarting the preview. 664 long delay = 1200 - mPictureDisplayedToJpegCallbackTime; 665 if (delay < 0 || mQuickCapture) { 666 restartPreview(); 667 } else { 668 mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay); 669 } 670 } 671 mImageCapture.storeImage(jpegData, camera, mLocation); 672 673 // Calculate this in advance of each shot so we don't add to shutter 674 // latency. It's true that someone else could write to the SD card in 675 // the mean time and fill it, but that could have happened between the 676 // shutter press and saving the JPEG too. 677 calculatePicturesRemaining(); 678 679 if (mPicturesRemaining < 1) { 680 updateStorageHint(mPicturesRemaining); 681 } 682 } 683 } 684 685 private final class AutoFocusCallback 686 implements android.hardware.Camera.AutoFocusCallback { 687 public void onAutoFocus( 688 boolean focused, android.hardware.Camera camera) { 689 mFocusCallbackTime = System.currentTimeMillis(); 690 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 691 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 692 if (mFocusState == FOCUSING_SNAP_ON_FINISH) { 693 // Take the picture no matter focus succeeds or fails. No need 694 // to play the AF sound if we're about to play the shutter 695 // sound. 696 if (focused) { 697 mFocusState = FOCUS_SUCCESS; 698 } else { 699 mFocusState = FOCUS_FAIL; 700 } 701 mImageCapture.onSnap(); 702 } else if (mFocusState == FOCUSING) { 703 // User is half-pressing the focus key. Play the focus tone. 704 // Do not take the picture now. 705 ToneGenerator tg = mFocusToneGenerator; 706 if (tg != null) { 707 tg.startTone(ToneGenerator.TONE_PROP_BEEP2); 708 } 709 if (focused) { 710 mFocusState = FOCUS_SUCCESS; 711 } else { 712 mFocusState = FOCUS_FAIL; 713 } 714 } else if (mFocusState == FOCUS_NOT_STARTED) { 715 // User has released the focus key before focus completes. 716 // Do nothing. 717 } 718 updateFocusIndicator(); 719 } 720 } 721 722 private static final class ErrorCallback 723 implements android.hardware.Camera.ErrorCallback { 724 public void onError(int error, android.hardware.Camera camera) { 725 if (error == android.hardware.Camera.CAMERA_ERROR_SERVER_DIED) { 726 mMediaServerDied = true; 727 Log.v(TAG, "media server died"); 728 } 729 } 730 } 731 732 private final class ZoomCallback 733 implements android.hardware.Camera.ZoomCallback { 734 public void onZoomUpdate( 735 int zoomValue, boolean stopped, android.hardware.Camera camera) { 736 Log.v(TAG, "ZoomCallback: zoom value=" + zoomValue + ". stopped=" 737 + stopped); 738 mZoomValue = zoomValue; 739 // Keep mParameters up to date. We do not getParameter again in 740 // takePicture. If we do not do this, wrong zoom value will be set. 741 mParameters.setZoom(zoomValue); 742 // We only care if the zoom is stopped. mZooming is set to true when 743 // we start smooth zoom. 744 if (stopped && mZoomState != ZOOM_STOPPED) { 745 if (zoomValue != mTargetZoomValue) { 746 mCameraDevice.startSmoothZoom(mTargetZoomValue); 747 mZoomState = ZOOM_START; 748 } else { 749 mZoomState = ZOOM_STOPPED; 750 } 751 } 752 } 753 } 754 755 private class ImageCapture { 756 757 private boolean mCancel = false; 758 759 private Uri mLastContentUri; 760 761 byte[] mCaptureOnlyData; 762 763 // Returns the rotation degree in the jpeg header. 764 private int storeImage(byte[] data, Location loc) { 765 try { 766 long dateTaken = System.currentTimeMillis(); 767 String title = createName(dateTaken); 768 String filename = title + ".jpg"; 769 int[] degree = new int[1]; 770 mLastContentUri = ImageManager.addImage( 771 mContentResolver, 772 title, 773 dateTaken, 774 loc, // location from gps/network 775 ImageManager.CAMERA_IMAGE_BUCKET_NAME, filename, 776 null, data, 777 degree); 778 if (mLastContentUri == null) { 779 // this means we got an error 780 mCancel = true; 781 } 782 if (!mCancel) { 783 ImageManager.setImageSize(mContentResolver, mLastContentUri, 784 new File(ImageManager.CAMERA_IMAGE_BUCKET_NAME, 785 filename).length()); 786 } 787 return degree[0]; 788 } catch (Exception ex) { 789 Log.e(TAG, "Exception while compressing image.", ex); 790 return 0; 791 } 792 } 793 794 public void storeImage(final byte[] data, 795 android.hardware.Camera camera, Location loc) { 796 if (!mIsImageCaptureIntent) { 797 int degree = storeImage(data, loc); 798 sendBroadcast(new Intent( 799 "com.android.camera.NEW_PICTURE", mLastContentUri)); 800 setLastPictureThumb(data, degree, 801 mImageCapture.getLastCaptureUri()); 802 mThumbController.updateDisplayIfNeeded(); 803 } else { 804 mCaptureOnlyData = data; 805 showPostCaptureAlert(); 806 } 807 } 808 809 /** 810 * Initiate the capture of an image. 811 */ 812 public void initiate() { 813 if (mCameraDevice == null) { 814 return; 815 } 816 817 mCancel = false; 818 819 capture(); 820 } 821 822 public Uri getLastCaptureUri() { 823 return mLastContentUri; 824 } 825 826 public byte[] getLastCaptureData() { 827 return mCaptureOnlyData; 828 } 829 830 private void capture() { 831 mCaptureOnlyData = null; 832 833 // Set rotation. 834 mParameters.setRotation(mLastOrientation); 835 836 // Clear previous GPS location from the parameters. 837 mParameters.removeGpsData(); 838 839 // Set GPS location. 840 Location loc = mRecordLocation ? getCurrentLocation() : null; 841 if (loc != null) { 842 double lat = loc.getLatitude(); 843 double lon = loc.getLongitude(); 844 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 845 846 if (hasLatLon) { 847 mParameters.setGpsLatitude(lat); 848 mParameters.setGpsLongitude(lon); 849 mParameters.setGpsProcessingMethod(loc.getProvider().toUpperCase()); 850 if (loc.hasAltitude()) { 851 mParameters.setGpsAltitude(loc.getAltitude()); 852 } else { 853 // for NETWORK_PROVIDER location provider, we may have 854 // no altitude information, but the driver needs it, so 855 // we fake one. 856 mParameters.setGpsAltitude(0); 857 } 858 if (loc.getTime() != 0) { 859 // Location.getTime() is UTC in milliseconds. 860 // gps-timestamp is UTC in seconds. 861 long utcTimeSeconds = loc.getTime() / 1000; 862 mParameters.setGpsTimestamp(utcTimeSeconds); 863 } 864 } else { 865 loc = null; 866 } 867 } 868 869 mCameraDevice.setParameters(mParameters); 870 871 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 872 mPostViewPictureCallback, new JpegPictureCallback(loc)); 873 mPreviewing = false; 874 } 875 876 public void onSnap() { 877 // If we are already in the middle of taking a snapshot then ignore. 878 if (mPausing || mStatus == SNAPSHOT_IN_PROGRESS) { 879 return; 880 } 881 mCaptureStartTime = System.currentTimeMillis(); 882 mPostViewPictureCallbackTime = 0; 883 mHeadUpDisplay.setEnabled(false); 884 mStatus = SNAPSHOT_IN_PROGRESS; 885 886 mImageCapture.initiate(); 887 } 888 889 private void clearLastData() { 890 mCaptureOnlyData = null; 891 } 892 } 893 894 private boolean saveDataToFile(String filePath, byte[] data) { 895 FileOutputStream f = null; 896 try { 897 f = new FileOutputStream(filePath); 898 f.write(data); 899 } catch (IOException e) { 900 return false; 901 } finally { 902 MenuHelper.closeSilently(f); 903 } 904 return true; 905 } 906 907 private void setLastPictureThumb(byte[] data, int degree, Uri uri) { 908 BitmapFactory.Options options = new BitmapFactory.Options(); 909 options.inSampleSize = 16; 910 Bitmap lastPictureThumb = 911 BitmapFactory.decodeByteArray(data, 0, data.length, options); 912 lastPictureThumb = Util.rotate(lastPictureThumb, degree); 913 mThumbController.setData(uri, lastPictureThumb); 914 } 915 916 private String createName(long dateTaken) { 917 Date date = new Date(dateTaken); 918 SimpleDateFormat dateFormat = new SimpleDateFormat( 919 getString(R.string.image_file_name_format)); 920 921 return dateFormat.format(date); 922 } 923 924 @Override 925 public void onCreate(Bundle icicle) { 926 super.onCreate(icicle); 927 928 setContentView(R.layout.camera); 929 mSurfaceView = (SurfaceView) findViewById(R.id.camera_preview); 930 931 mPreferences = PreferenceManager.getDefaultSharedPreferences(this); 932 CameraSettings.upgradePreferences(mPreferences); 933 934 mQuickCapture = getQuickCaptureSettings(); 935 936 // we need to reset exposure for the preview 937 resetExposureCompensation(); 938 /* 939 * To reduce startup time, we start the preview in another thread. 940 * We make sure the preview is started at the end of onCreate. 941 */ 942 Thread startPreviewThread = new Thread(new Runnable() { 943 public void run() { 944 try { 945 mStartPreviewFail = false; 946 startPreview(); 947 } catch (CameraHardwareException e) { 948 // In eng build, we throw the exception so that test tool 949 // can detect it and report it 950 if ("eng".equals(Build.TYPE)) { 951 throw new RuntimeException(e); 952 } 953 mStartPreviewFail = true; 954 } 955 } 956 }); 957 startPreviewThread.start(); 958 959 // don't set mSurfaceHolder here. We have it set ONLY within 960 // surfaceChanged / surfaceDestroyed, other parts of the code 961 // assume that when it is set, the surface is also set. 962 SurfaceHolder holder = mSurfaceView.getHolder(); 963 holder.addCallback(this); 964 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 965 966 mIsImageCaptureIntent = isImageCaptureIntent(); 967 if (mIsImageCaptureIntent) { 968 setupCaptureParams(); 969 } 970 971 LayoutInflater inflater = getLayoutInflater(); 972 973 ViewGroup rootView = (ViewGroup) findViewById(R.id.camera); 974 mGLRootView = (GLRootView) findViewById(R.id.settings_ui); 975 976 if (mIsImageCaptureIntent) { 977 View controlBar = inflater.inflate( 978 R.layout.attach_camera_control, rootView); 979 controlBar.findViewById(R.id.btn_cancel).setOnClickListener(this); 980 controlBar.findViewById(R.id.btn_retake).setOnClickListener(this); 981 controlBar.findViewById(R.id.btn_done).setOnClickListener(this); 982 } else { 983 inflater.inflate(R.layout.camera_control, rootView); 984 mSwitcher = ((Switcher) findViewById(R.id.camera_switch)); 985 mSwitcher.setOnSwitchListener(this); 986 mSwitcher.addTouchView(findViewById(R.id.camera_switch_set)); 987 } 988 989 // Make sure preview is started. 990 try { 991 startPreviewThread.join(); 992 if (mStartPreviewFail) { 993 showCameraErrorAndFinish(); 994 return; 995 } 996 } catch (InterruptedException ex) { 997 // ignore 998 } 999 } 1000 1001 private void setOrientationIndicator(int degree) { 1002 ((RotateImageView) findViewById( 1003 R.id.review_thumbnail)).setDegree(degree); 1004 ((RotateImageView) findViewById( 1005 R.id.camera_switch_icon)).setDegree(degree); 1006 ((RotateImageView) findViewById( 1007 R.id.video_switch_icon)).setDegree(degree); 1008 } 1009 1010 @Override 1011 public void onStart() { 1012 super.onStart(); 1013 if (!mIsImageCaptureIntent) { 1014 mSwitcher.setSwitch(SWITCH_CAMERA); 1015 } 1016 } 1017 1018 @Override 1019 public void onStop() { 1020 super.onStop(); 1021 if (mMediaProviderClient != null) { 1022 mMediaProviderClient.release(); 1023 mMediaProviderClient = null; 1024 } 1025 } 1026 1027 private void checkStorage() { 1028 if (ImageManager.isMediaScannerScanning(getContentResolver())) { 1029 mPicturesRemaining = MenuHelper.NO_STORAGE_ERROR; 1030 } else { 1031 calculatePicturesRemaining(); 1032 } 1033 updateStorageHint(mPicturesRemaining); 1034 } 1035 1036 public void onClick(View v) { 1037 switch (v.getId()) { 1038 case R.id.btn_retake: 1039 hidePostCaptureAlert(); 1040 restartPreview(); 1041 break; 1042 case R.id.review_thumbnail: 1043 if (isCameraIdle()) { 1044 viewLastImage(); 1045 } 1046 break; 1047 case R.id.btn_done: 1048 doAttach(); 1049 break; 1050 case R.id.btn_cancel: 1051 doCancel(); 1052 } 1053 } 1054 1055 private Bitmap createCaptureBitmap(byte[] data) { 1056 // This is really stupid...we just want to read the orientation in 1057 // the jpeg header. 1058 String filepath = ImageManager.getTempJpegPath(); 1059 int degree = 0; 1060 if (saveDataToFile(filepath, data)) { 1061 degree = ImageManager.getExifOrientation(filepath); 1062 new File(filepath).delete(); 1063 } 1064 1065 // Limit to 50k pixels so we can return it in the intent. 1066 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1067 bitmap = Util.rotate(bitmap, degree); 1068 return bitmap; 1069 } 1070 1071 private void doAttach() { 1072 if (mPausing) { 1073 return; 1074 } 1075 1076 byte[] data = mImageCapture.getLastCaptureData(); 1077 1078 if (mCropValue == null) { 1079 // First handle the no crop case -- just return the value. If the 1080 // caller specifies a "save uri" then write the data to it's 1081 // stream. Otherwise, pass back a scaled down version of the bitmap 1082 // directly in the extras. 1083 if (mSaveUri != null) { 1084 OutputStream outputStream = null; 1085 try { 1086 outputStream = mContentResolver.openOutputStream(mSaveUri); 1087 outputStream.write(data); 1088 outputStream.close(); 1089 1090 setResult(RESULT_OK); 1091 finish(); 1092 } catch (IOException ex) { 1093 // ignore exception 1094 } finally { 1095 Util.closeSilently(outputStream); 1096 } 1097 } else { 1098 Bitmap bitmap = createCaptureBitmap(data); 1099 setResult(RESULT_OK, 1100 new Intent("inline-data").putExtra("data", bitmap)); 1101 finish(); 1102 } 1103 } else { 1104 // Save the image to a temp file and invoke the cropper 1105 Uri tempUri = null; 1106 FileOutputStream tempStream = null; 1107 try { 1108 File path = getFileStreamPath(sTempCropFilename); 1109 path.delete(); 1110 tempStream = openFileOutput(sTempCropFilename, 0); 1111 tempStream.write(data); 1112 tempStream.close(); 1113 tempUri = Uri.fromFile(path); 1114 } catch (FileNotFoundException ex) { 1115 setResult(Activity.RESULT_CANCELED); 1116 finish(); 1117 return; 1118 } catch (IOException ex) { 1119 setResult(Activity.RESULT_CANCELED); 1120 finish(); 1121 return; 1122 } finally { 1123 Util.closeSilently(tempStream); 1124 } 1125 1126 Bundle newExtras = new Bundle(); 1127 if (mCropValue.equals("circle")) { 1128 newExtras.putString("circleCrop", "true"); 1129 } 1130 if (mSaveUri != null) { 1131 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1132 } else { 1133 newExtras.putBoolean("return-data", true); 1134 } 1135 1136 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1137 1138 cropIntent.setData(tempUri); 1139 cropIntent.putExtras(newExtras); 1140 1141 startActivityForResult(cropIntent, CROP_MSG); 1142 } 1143 } 1144 1145 private void doCancel() { 1146 setResult(RESULT_CANCELED, new Intent()); 1147 finish(); 1148 } 1149 1150 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1151 if (mPausing) { 1152 return; 1153 } 1154 switch (button.getId()) { 1155 case R.id.shutter_button: 1156 doFocus(pressed); 1157 break; 1158 } 1159 } 1160 1161 public void onShutterButtonClick(ShutterButton button) { 1162 if (mPausing) { 1163 return; 1164 } 1165 switch (button.getId()) { 1166 case R.id.shutter_button: 1167 doSnap(); 1168 break; 1169 } 1170 } 1171 1172 private OnScreenHint mStorageHint; 1173 1174 private void updateStorageHint(int remaining) { 1175 String noStorageText = null; 1176 1177 if (remaining == MenuHelper.NO_STORAGE_ERROR) { 1178 String state = Environment.getExternalStorageState(); 1179 if (state == Environment.MEDIA_CHECKING || 1180 ImageManager.isMediaScannerScanning(getContentResolver())) { 1181 noStorageText = getString(R.string.preparing_sd); 1182 } else { 1183 noStorageText = getString(R.string.no_storage); 1184 } 1185 } else if (remaining < 1) { 1186 noStorageText = getString(R.string.not_enough_space); 1187 } 1188 1189 if (noStorageText != null) { 1190 if (mStorageHint == null) { 1191 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1192 } else { 1193 mStorageHint.setText(noStorageText); 1194 } 1195 mStorageHint.show(); 1196 } else if (mStorageHint != null) { 1197 mStorageHint.cancel(); 1198 mStorageHint = null; 1199 } 1200 } 1201 1202 private void installIntentFilter() { 1203 // install an intent filter to receive SD card related events. 1204 IntentFilter intentFilter = 1205 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1206 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1207 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED); 1208 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1209 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1210 intentFilter.addDataScheme("file"); 1211 registerReceiver(mReceiver, intentFilter); 1212 mDidRegister = true; 1213 } 1214 1215 private void initializeFocusTone() { 1216 // Initialize focus tone generator. 1217 try { 1218 mFocusToneGenerator = new ToneGenerator( 1219 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1220 } catch (Throwable ex) { 1221 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1222 mFocusToneGenerator = null; 1223 } 1224 } 1225 1226 private void initializeScreenBrightness() { 1227 Window win = getWindow(); 1228 // Overright the brightness settings if it is automatic 1229 int mode = Settings.System.getInt( 1230 getContentResolver(), 1231 Settings.System.SCREEN_BRIGHTNESS_MODE, 1232 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); 1233 if (mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC) { 1234 WindowManager.LayoutParams winParams = win.getAttributes(); 1235 winParams.screenBrightness = DEFAULT_CAMERA_BRIGHTNESS; 1236 win.setAttributes(winParams); 1237 } 1238 } 1239 1240 @Override 1241 protected void onResume() { 1242 super.onResume(); 1243 mGLRootView.onResume(); 1244 1245 mPausing = false; 1246 mJpegPictureCallbackTime = 0; 1247 mZoomValue = 0; 1248 if (mHeadUpDisplay != null) { 1249 mHeadUpDisplay.setZoomIndex(mZoomValue); 1250 } 1251 mImageCapture = new ImageCapture(); 1252 1253 resetExposureCompensation(); 1254 1255 // Start the preview if it is not started. 1256 if (!mPreviewing && !mStartPreviewFail) { 1257 try { 1258 startPreview(); 1259 } catch (CameraHardwareException e) { 1260 showCameraErrorAndFinish(); 1261 return; 1262 } 1263 } 1264 1265 if (mSurfaceHolder != null) { 1266 // If first time initialization is not finished, put it in the 1267 // message queue. 1268 if (!mFirstTimeInitialized) { 1269 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1270 } else { 1271 initializeSecondTime(); 1272 } 1273 } 1274 keepScreenOnAwhile(); 1275 } 1276 1277 private static ImageManager.DataLocation dataLocation() { 1278 return ImageManager.DataLocation.EXTERNAL; 1279 } 1280 1281 @Override 1282 protected void onPause() { 1283 mPausing = true; 1284 stopPreview(); 1285 // Close the camera now because other activities may need to use it. 1286 closeCamera(); 1287 resetScreenOn(); 1288 1289 if (mGLRootView != null) { 1290 mGLRootView.onPause(); 1291 if (mHeadUpDisplay != null) { 1292 mHeadUpDisplay.setGpsHasSignal(false); 1293 mHeadUpDisplay.collapse(); 1294 } 1295 } 1296 if (mFirstTimeInitialized) { 1297 mOrientationListener.disable(); 1298 if (!mIsImageCaptureIntent) { 1299 mThumbController.storeData( 1300 ImageManager.getLastImageThumbPath()); 1301 } 1302 hidePostCaptureAlert(); 1303 } 1304 1305 if (mDidRegister) { 1306 unregisterReceiver(mReceiver); 1307 mDidRegister = false; 1308 } 1309 stopReceivingLocationUpdates(); 1310 1311 if (mFocusToneGenerator != null) { 1312 mFocusToneGenerator.release(); 1313 mFocusToneGenerator = null; 1314 } 1315 1316 if (mStorageHint != null) { 1317 mStorageHint.cancel(); 1318 mStorageHint = null; 1319 } 1320 1321 // If we are in an image capture intent and has taken 1322 // a picture, we just clear it in onPause. 1323 mImageCapture.clearLastData(); 1324 mImageCapture = null; 1325 1326 // Remove the messages in the event queue. 1327 mHandler.removeMessages(RESTART_PREVIEW); 1328 mHandler.removeMessages(FIRST_TIME_INIT); 1329 1330 super.onPause(); 1331 } 1332 1333 @Override 1334 protected void onActivityResult( 1335 int requestCode, int resultCode, Intent data) { 1336 switch (requestCode) { 1337 case CROP_MSG: { 1338 Intent intent = new Intent(); 1339 if (data != null) { 1340 Bundle extras = data.getExtras(); 1341 if (extras != null) { 1342 intent.putExtras(extras); 1343 } 1344 } 1345 setResult(resultCode, intent); 1346 finish(); 1347 1348 File path = getFileStreamPath(sTempCropFilename); 1349 path.delete(); 1350 1351 break; 1352 } 1353 } 1354 } 1355 1356 private boolean canTakePicture() { 1357 return isCameraIdle() && mPreviewing && (mPicturesRemaining > 0); 1358 } 1359 1360 private void autoFocus() { 1361 // Initiate autofocus only when preview is started and snapshot is not 1362 // in progress. 1363 if (canTakePicture()) { 1364 mHeadUpDisplay.setEnabled(false); 1365 Log.v(TAG, "Start autofocus."); 1366 mFocusStartTime = System.currentTimeMillis(); 1367 mFocusState = FOCUSING; 1368 updateFocusIndicator(); 1369 mCameraDevice.autoFocus(mAutoFocusCallback); 1370 } 1371 } 1372 1373 private void cancelAutoFocus() { 1374 // User releases half-pressed focus key. 1375 if (mFocusState == FOCUSING || mFocusState == FOCUS_SUCCESS 1376 || mFocusState == FOCUS_FAIL) { 1377 Log.v(TAG, "Cancel autofocus."); 1378 mHeadUpDisplay.setEnabled(true); 1379 mCameraDevice.cancelAutoFocus(); 1380 } 1381 if (mFocusState != FOCUSING_SNAP_ON_FINISH) { 1382 clearFocusState(); 1383 } 1384 } 1385 1386 private void clearFocusState() { 1387 mFocusState = FOCUS_NOT_STARTED; 1388 updateFocusIndicator(); 1389 } 1390 1391 private void updateFocusIndicator() { 1392 if (mFocusRectangle == null) return; 1393 1394 if (mFocusState == FOCUSING || mFocusState == FOCUSING_SNAP_ON_FINISH) { 1395 mFocusRectangle.showStart(); 1396 } else if (mFocusState == FOCUS_SUCCESS) { 1397 mFocusRectangle.showSuccess(); 1398 } else if (mFocusState == FOCUS_FAIL) { 1399 mFocusRectangle.showFail(); 1400 } else { 1401 mFocusRectangle.clear(); 1402 } 1403 } 1404 1405 @Override 1406 public void onBackPressed() { 1407 if (!isCameraIdle()) { 1408 // ignore backs while we're taking a picture 1409 return; 1410 } 1411 super.onBackPressed(); 1412 } 1413 1414 @Override 1415 public boolean onKeyDown(int keyCode, KeyEvent event) { 1416 switch (keyCode) { 1417 case KeyEvent.KEYCODE_FOCUS: 1418 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1419 doFocus(true); 1420 } 1421 return true; 1422 case KeyEvent.KEYCODE_CAMERA: 1423 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1424 doSnap(); 1425 } 1426 return true; 1427 case KeyEvent.KEYCODE_DPAD_CENTER: 1428 // If we get a dpad center event without any focused view, move 1429 // the focus to the shutter button and press it. 1430 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1431 // Start auto-focus immediately to reduce shutter lag. After 1432 // the shutter button gets the focus, doFocus() will be 1433 // called again but it is fine. 1434 if (mHeadUpDisplay.collapse()) return true; 1435 doFocus(true); 1436 if (mShutterButton.isInTouchMode()) { 1437 mShutterButton.requestFocusFromTouch(); 1438 } else { 1439 mShutterButton.requestFocus(); 1440 } 1441 mShutterButton.setPressed(true); 1442 } 1443 return true; 1444 } 1445 1446 return super.onKeyDown(keyCode, event); 1447 } 1448 1449 @Override 1450 public boolean onKeyUp(int keyCode, KeyEvent event) { 1451 switch (keyCode) { 1452 case KeyEvent.KEYCODE_FOCUS: 1453 if (mFirstTimeInitialized) { 1454 doFocus(false); 1455 } 1456 return true; 1457 } 1458 return super.onKeyUp(keyCode, event); 1459 } 1460 1461 private void doSnap() { 1462 if (mHeadUpDisplay.collapse()) return; 1463 1464 Log.v(TAG, "doSnap: mFocusState=" + mFocusState); 1465 // If the user has half-pressed the shutter and focus is completed, we 1466 // can take the photo right away. If the focus mode is infinity, we can 1467 // also take the photo. 1468 if (mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1469 || (mFocusState == FOCUS_SUCCESS 1470 || mFocusState == FOCUS_FAIL)) { 1471 mImageCapture.onSnap(); 1472 } else if (mFocusState == FOCUSING) { 1473 // Half pressing the shutter (i.e. the focus button event) will 1474 // already have requested AF for us, so just request capture on 1475 // focus here. 1476 mFocusState = FOCUSING_SNAP_ON_FINISH; 1477 } else if (mFocusState == FOCUS_NOT_STARTED) { 1478 // Focus key down event is dropped for some reasons. Just ignore. 1479 } 1480 } 1481 1482 private void doFocus(boolean pressed) { 1483 // Do the focus if the mode is not infinity. 1484 if (mHeadUpDisplay.collapse()) return; 1485 if (!mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY)) { 1486 if (pressed) { // Focus key down. 1487 autoFocus(); 1488 } else { // Focus key up. 1489 cancelAutoFocus(); 1490 } 1491 } 1492 } 1493 1494 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1495 // Make sure we have a surface in the holder before proceeding. 1496 if (holder.getSurface() == null) { 1497 Log.d(TAG, "holder.getSurface() == null"); 1498 return; 1499 } 1500 1501 // We need to save the holder for later use, even when the mCameraDevice 1502 // is null. This could happen if onResume() is invoked after this 1503 // function. 1504 mSurfaceHolder = holder; 1505 1506 // The mCameraDevice will be null if it fails to connect to the camera 1507 // hardware. In this case we will show a dialog and then finish the 1508 // activity, so it's OK to ignore it. 1509 if (mCameraDevice == null) return; 1510 1511 // Sometimes surfaceChanged is called after onPause or before onResume. 1512 // Ignore it. 1513 if (mPausing || isFinishing()) return; 1514 1515 if (mPreviewing && holder.isCreating()) { 1516 // Set preview display if the surface is being created and preview 1517 // was already started. That means preview display was set to null 1518 // and we need to set it now. 1519 setPreviewDisplay(holder); 1520 } else { 1521 // 1. Restart the preview if the size of surface was changed. The 1522 // framework may not support changing preview display on the fly. 1523 // 2. Start the preview now if surface was destroyed and preview 1524 // stopped. 1525 restartPreview(); 1526 } 1527 1528 // If first time initialization is not finished, send a message to do 1529 // it later. We want to finish surfaceChanged as soon as possible to let 1530 // user see preview first. 1531 if (!mFirstTimeInitialized) { 1532 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1533 } else { 1534 initializeSecondTime(); 1535 } 1536 } 1537 1538 public void surfaceCreated(SurfaceHolder holder) { 1539 } 1540 1541 public void surfaceDestroyed(SurfaceHolder holder) { 1542 stopPreview(); 1543 mSurfaceHolder = null; 1544 } 1545 1546 private void closeCamera() { 1547 if (mCameraDevice != null) { 1548 CameraHolder.instance().release(); 1549 mCameraDevice.setZoomCallback(null); 1550 mCameraDevice = null; 1551 mPreviewing = false; 1552 } 1553 } 1554 1555 private void ensureCameraDevice() throws CameraHardwareException { 1556 if (mCameraDevice == null) { 1557 mCameraDevice = CameraHolder.instance().open(); 1558 mInitialParams = mCameraDevice.getParameters(); 1559 } 1560 } 1561 1562 private void updateLastImage() { 1563 IImageList list = ImageManager.makeImageList( 1564 mContentResolver, 1565 dataLocation(), 1566 ImageManager.INCLUDE_IMAGES, 1567 ImageManager.SORT_ASCENDING, 1568 ImageManager.CAMERA_IMAGE_BUCKET_ID); 1569 int count = list.getCount(); 1570 if (count > 0) { 1571 IImage image = list.getImageAt(count - 1); 1572 Uri uri = image.fullSizeImageUri(); 1573 mThumbController.setData(uri, image.miniThumbBitmap()); 1574 } else { 1575 mThumbController.setData(null, null); 1576 } 1577 list.close(); 1578 } 1579 1580 private void showCameraErrorAndFinish() { 1581 Resources ress = getResources(); 1582 Util.showFatalErrorAndFinish(Camera.this, 1583 ress.getString(R.string.camera_error_title), 1584 ress.getString(R.string.cannot_connect_camera)); 1585 } 1586 1587 private void restartPreview() { 1588 try { 1589 startPreview(); 1590 } catch (CameraHardwareException e) { 1591 showCameraErrorAndFinish(); 1592 return; 1593 } 1594 } 1595 1596 private void setPreviewDisplay(SurfaceHolder holder) { 1597 try { 1598 mCameraDevice.setPreviewDisplay(holder); 1599 } catch (Throwable ex) { 1600 closeCamera(); 1601 throw new RuntimeException("setPreviewDisplay failed", ex); 1602 } 1603 } 1604 1605 private void startPreview() throws CameraHardwareException { 1606 if (mPausing || isFinishing()) return; 1607 1608 ensureCameraDevice(); 1609 1610 // If we're previewing already, stop the preview first (this will blank 1611 // the screen). 1612 if (mPreviewing) stopPreview(); 1613 1614 setPreviewDisplay(mSurfaceHolder); 1615 setCameraParameters(UPDATE_PARAM_ALL); 1616 1617 final long wallTimeStart = SystemClock.elapsedRealtime(); 1618 final long threadTimeStart = Debug.threadCpuTimeNanos(); 1619 1620 // Set one shot preview callback for latency measurement. 1621 mCameraDevice.setOneShotPreviewCallback(mOneShotPreviewCallback); 1622 mCameraDevice.setErrorCallback(mErrorCallback); 1623 1624 try { 1625 Log.v(TAG, "startPreview"); 1626 mCameraDevice.startPreview(); 1627 } catch (Throwable ex) { 1628 closeCamera(); 1629 throw new RuntimeException("startPreview failed", ex); 1630 } 1631 mPreviewing = true; 1632 mZoomState = ZOOM_STOPPED; 1633 mStatus = IDLE; 1634 1635 long threadTimeEnd = Debug.threadCpuTimeNanos(); 1636 long wallTimeEnd = SystemClock.elapsedRealtime(); 1637 if ((wallTimeEnd - wallTimeStart) > 3000) { 1638 Log.w(TAG, "startPreview() to " + (wallTimeEnd - wallTimeStart) 1639 + " ms. Thread time was" 1640 + (threadTimeEnd - threadTimeStart) / 1000000 + " ms."); 1641 } 1642 } 1643 1644 private void stopPreview() { 1645 if (mCameraDevice != null && mPreviewing) { 1646 Log.v(TAG, "stopPreview"); 1647 mCameraDevice.stopPreview(); 1648 } 1649 mPreviewing = false; 1650 // If auto focus was in progress, it would have been canceled. 1651 clearFocusState(); 1652 } 1653 1654 private Size getOptimalPreviewSize(List<Size> sizes, double targetRatio) { 1655 final double ASPECT_TOLERANCE = 0.05; 1656 if (sizes == null) return null; 1657 1658 Size optimalSize = null; 1659 double minDiff = Double.MAX_VALUE; 1660 1661 // Because of bugs of overlay and layout, we sometimes will try to 1662 // layout the viewfinder in the portrait orientation and thus get the 1663 // wrong size of mSurfaceView. When we change the preview size, the 1664 // new overlay will be created before the old one closed, which causes 1665 // an exception. For now, just get the screen size 1666 1667 Display display = getWindowManager().getDefaultDisplay(); 1668 int targetHeight = Math.min(display.getHeight(), display.getWidth()); 1669 1670 if (targetHeight <= 0) { 1671 // We don't know the size of SurefaceView, use screen height 1672 WindowManager windowManager = (WindowManager) 1673 getSystemService(Context.WINDOW_SERVICE); 1674 targetHeight = windowManager.getDefaultDisplay().getHeight(); 1675 } 1676 1677 // Try to find an size match aspect ratio and size 1678 for (Size size : sizes) { 1679 double ratio = (double) size.width / size.height; 1680 if (Math.abs(ratio - targetRatio) > ASPECT_TOLERANCE) continue; 1681 if (Math.abs(size.height - targetHeight) < minDiff) { 1682 optimalSize = size; 1683 minDiff = Math.abs(size.height - targetHeight); 1684 } 1685 } 1686 1687 // Cannot find the one match the aspect ratio, ignore the requirement 1688 if (optimalSize == null) { 1689 Log.v(TAG, "No preview size match the aspect ratio"); 1690 minDiff = Double.MAX_VALUE; 1691 for (Size size : sizes) { 1692 if (Math.abs(size.height - targetHeight) < minDiff) { 1693 optimalSize = size; 1694 minDiff = Math.abs(size.height - targetHeight); 1695 } 1696 } 1697 } 1698 return optimalSize; 1699 } 1700 1701 private static boolean isSupported(String value, List<String> supported) { 1702 return supported == null ? false : supported.indexOf(value) >= 0; 1703 } 1704 1705 private void updateCameraParametersInitialize() { 1706 // Reset preview frame rate to the maximum because it may be lowered by 1707 // video camera application. 1708 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1709 if (frameRates != null) { 1710 Integer max = Collections.max(frameRates); 1711 mParameters.setPreviewFrameRate(max); 1712 } 1713 1714 } 1715 1716 private void updateCameraParametersZoom() { 1717 // Set zoom. 1718 if (mParameters.isZoomSupported()) { 1719 mParameters.setZoom(mZoomValue); 1720 } 1721 } 1722 1723 private void updateCameraParametersPreference() { 1724 // Set picture size. 1725 String pictureSize = mPreferences.getString( 1726 CameraSettings.KEY_PICTURE_SIZE, null); 1727 if (pictureSize == null) { 1728 CameraSettings.initialCameraPictureSize(this, mParameters); 1729 } else { 1730 List<Size> supported = mParameters.getSupportedPictureSizes(); 1731 CameraSettings.setCameraPictureSize( 1732 pictureSize, supported, mParameters); 1733 } 1734 1735 // Set the preview frame aspect ratio according to the picture size. 1736 Size size = mParameters.getPictureSize(); 1737 PreviewFrameLayout frameLayout = 1738 (PreviewFrameLayout) findViewById(R.id.frame_layout); 1739 frameLayout.setAspectRatio((double) size.width / size.height); 1740 1741 // Set a preview size that is closest to the viewfinder height and has 1742 // the right aspect ratio. 1743 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1744 Size optimalSize = getOptimalPreviewSize( 1745 sizes, (double) size.width / size.height); 1746 if (optimalSize != null) { 1747 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1748 } 1749 1750 // Since change scene mode may change supported values, 1751 // Set scene mode first, 1752 String sceneMode = mPreferences.getString( 1753 CameraSettings.KEY_SCENE_MODE, 1754 getString(R.string.pref_camera_scenemode_default)); 1755 if (isSupported(sceneMode, mParameters.getSupportedSceneModes())) { 1756 if (!mParameters.getSceneMode().equals(sceneMode)) { 1757 mParameters.setSceneMode(sceneMode); 1758 mCameraDevice.setParameters(mParameters); 1759 1760 // Setting scene mode will change the settings of flash mode, 1761 // white balance, and focus mode. Here we read back the 1762 // parameters, so we can know those settings. 1763 mParameters = mCameraDevice.getParameters(); 1764 } 1765 } else { 1766 sceneMode = mParameters.getSceneMode(); 1767 if (sceneMode == null) { 1768 sceneMode = Parameters.SCENE_MODE_AUTO; 1769 } 1770 } 1771 1772 // Set JPEG quality. 1773 String jpegQuality = mPreferences.getString( 1774 CameraSettings.KEY_JPEG_QUALITY, 1775 getString(R.string.pref_camera_jpegquality_default)); 1776 mParameters.setJpegQuality(getQualityNumber(jpegQuality)); 1777 1778 // For the following settings, we need to check if the settings are 1779 // still supported by latest driver, if not, ignore the settings. 1780 1781 // Set color effect parameter. 1782 String colorEffect = mPreferences.getString( 1783 CameraSettings.KEY_COLOR_EFFECT, 1784 getString(R.string.pref_camera_coloreffect_default)); 1785 if (isSupported(colorEffect, mParameters.getSupportedColorEffects())) { 1786 mParameters.setColorEffect(colorEffect); 1787 } 1788 1789 // Set exposure compensation 1790 String exposure = mPreferences.getString( 1791 CameraSettings.KEY_EXPOSURE, 1792 getString(R.string.pref_exposure_default)); 1793 try { 1794 int value = Integer.parseInt(exposure); 1795 int max = mParameters.getMaxExposureCompensation(); 1796 int min = mParameters.getMinExposureCompensation(); 1797 if (value >= min && value <= max) { 1798 mParameters.setExposureCompensation(value); 1799 } else { 1800 Log.w(TAG, "invalid exposure range: " + exposure); 1801 } 1802 } catch (NumberFormatException e) { 1803 Log.w(TAG, "invalid exposure: " + exposure); 1804 } 1805 1806 // If scene mode is set, we cannot set flash mode, white balance, and 1807 // focus mode, instead, we read it from driver 1808 if (!Parameters.SCENE_MODE_AUTO.equals(sceneMode)) { 1809 final String flashMode = mParameters.getFlashMode(); 1810 final String whiteBalance = mParameters.getWhiteBalance(); 1811 mFocusMode = mParameters.getFocusMode(); 1812 1813 if (mHeadUpDisplay != null) { 1814 final String finalFlashMode = flashMode; 1815 mGLRootView.queueEvent(new Runnable() { 1816 public void run() { 1817 mHeadUpDisplay.overrideSettings( 1818 CameraSettings.KEY_FLASH_MODE, flashMode); 1819 mHeadUpDisplay.overrideSettings( 1820 CameraSettings.KEY_WHITE_BALANCE, whiteBalance); 1821 mHeadUpDisplay.overrideSettings( 1822 CameraSettings.KEY_FOCUS_MODE, mFocusMode); 1823 }}); 1824 } 1825 } else { 1826 if (mHeadUpDisplay != null) { 1827 mGLRootView.queueEvent(new Runnable() { 1828 public void run() { 1829 mHeadUpDisplay.overrideSettings( 1830 CameraSettings.KEY_FLASH_MODE, null); 1831 mHeadUpDisplay.overrideSettings( 1832 CameraSettings.KEY_FOCUS_MODE, null); 1833 mHeadUpDisplay.overrideSettings( 1834 CameraSettings.KEY_WHITE_BALANCE, null); 1835 }}); 1836 } 1837 1838 // Set flash mode. 1839 String flashMode = mPreferences.getString( 1840 CameraSettings.KEY_FLASH_MODE, 1841 getString(R.string.pref_camera_flashmode_default)); 1842 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 1843 if (isSupported(flashMode, supportedFlash)) { 1844 mParameters.setFlashMode(flashMode); 1845 } else { 1846 flashMode = mParameters.getFlashMode(); 1847 if (flashMode == null) { 1848 flashMode = getString( 1849 R.string.pref_camera_flashmode_no_flash); 1850 } 1851 } 1852 1853 // Set white balance parameter. 1854 String whiteBalance = mPreferences.getString( 1855 CameraSettings.KEY_WHITE_BALANCE, 1856 getString(R.string.pref_camera_whitebalance_default)); 1857 if (isSupported(whiteBalance, 1858 mParameters.getSupportedWhiteBalance())) { 1859 mParameters.setWhiteBalance(whiteBalance); 1860 } else { 1861 whiteBalance = mParameters.getWhiteBalance(); 1862 if (whiteBalance == null) { 1863 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 1864 } 1865 } 1866 1867 // Set focus mode. 1868 mFocusMode = mPreferences.getString( 1869 CameraSettings.KEY_FOCUS_MODE, 1870 getString(R.string.pref_camera_focusmode_default)); 1871 if (isSupported(mFocusMode, mParameters.getSupportedFocusModes())) { 1872 mParameters.setFocusMode(mFocusMode); 1873 } else { 1874 mFocusMode = mParameters.getFocusMode(); 1875 if (mFocusMode == null) { 1876 mFocusMode = Parameters.FOCUS_MODE_AUTO; 1877 } 1878 } 1879 } 1880 } 1881 1882 // We separate the parameters into several subsets, so we can update only 1883 // the subsets actually need updating. The PREFERENCE set needs extra 1884 // locking because the preference can be changed from GLThread as well. 1885 private void setCameraParameters(int updateSet) { 1886 mParameters = mCameraDevice.getParameters(); 1887 1888 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 1889 updateCameraParametersInitialize(); 1890 } 1891 1892 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 1893 updateCameraParametersZoom(); 1894 } 1895 1896 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 1897 synchronized (mPreferences) { 1898 updateCameraParametersPreference(); 1899 } 1900 } 1901 1902 mCameraDevice.setParameters(mParameters); 1903 } 1904 1905 // If the Camera is idle, update the parameters immediately, otherwise 1906 // accumulate them in mUpdateSet and update later. 1907 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 1908 mUpdateSet |= additionalUpdateSet; 1909 if (mCameraDevice == null) { 1910 // We will update all the parameters when we open the device, so 1911 // we don't need to do anything now. 1912 mUpdateSet = 0; 1913 return; 1914 } else if (isCameraIdle()) { 1915 setCameraParameters(mUpdateSet); 1916 mUpdateSet = 0; 1917 } else { 1918 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 1919 mHandler.sendEmptyMessageDelayed( 1920 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 1921 } 1922 } 1923 } 1924 1925 private void gotoGallery() { 1926 MenuHelper.gotoCameraImageGallery(this); 1927 } 1928 1929 private void viewLastImage() { 1930 if (mThumbController.isUriValid()) { 1931 Intent intent = new Intent(Intent.ACTION_VIEW, mThumbController.getUri()); 1932 try { 1933 startActivity(intent); 1934 } catch (ActivityNotFoundException ex) { 1935 Log.e(TAG, "review image fail", ex); 1936 } 1937 } else { 1938 Log.e(TAG, "Can't view last image."); 1939 } 1940 } 1941 1942 private void startReceivingLocationUpdates() { 1943 if (mLocationManager != null) { 1944 try { 1945 mLocationManager.requestLocationUpdates( 1946 LocationManager.NETWORK_PROVIDER, 1947 1000, 1948 0F, 1949 mLocationListeners[1]); 1950 } catch (java.lang.SecurityException ex) { 1951 Log.i(TAG, "fail to request location update, ignore", ex); 1952 } catch (IllegalArgumentException ex) { 1953 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1954 } 1955 try { 1956 mLocationManager.requestLocationUpdates( 1957 LocationManager.GPS_PROVIDER, 1958 1000, 1959 0F, 1960 mLocationListeners[0]); 1961 } catch (java.lang.SecurityException ex) { 1962 Log.i(TAG, "fail to request location update, ignore", ex); 1963 } catch (IllegalArgumentException ex) { 1964 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1965 } 1966 } 1967 } 1968 1969 private void stopReceivingLocationUpdates() { 1970 if (mLocationManager != null) { 1971 for (int i = 0; i < mLocationListeners.length; i++) { 1972 try { 1973 mLocationManager.removeUpdates(mLocationListeners[i]); 1974 } catch (Exception ex) { 1975 Log.i(TAG, "fail to remove location listners, ignore", ex); 1976 } 1977 } 1978 } 1979 } 1980 1981 private Location getCurrentLocation() { 1982 // go in best to worst order 1983 for (int i = 0; i < mLocationListeners.length; i++) { 1984 Location l = mLocationListeners[i].current(); 1985 if (l != null) return l; 1986 } 1987 return null; 1988 } 1989 1990 private boolean isCameraIdle() { 1991 return mStatus == IDLE && mFocusState == FOCUS_NOT_STARTED; 1992 } 1993 1994 private boolean isImageCaptureIntent() { 1995 String action = getIntent().getAction(); 1996 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 1997 } 1998 1999 private void setupCaptureParams() { 2000 Bundle myExtras = getIntent().getExtras(); 2001 if (myExtras != null) { 2002 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 2003 mCropValue = myExtras.getString("crop"); 2004 } 2005 } 2006 2007 private void showPostCaptureAlert() { 2008 if (mIsImageCaptureIntent) { 2009 findViewById(R.id.shutter_button).setVisibility(View.INVISIBLE); 2010 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2011 for (int id : pickIds) { 2012 View button = findViewById(id); 2013 ((View) button.getParent()).setVisibility(View.VISIBLE); 2014 } 2015 } 2016 } 2017 2018 private void hidePostCaptureAlert() { 2019 if (mIsImageCaptureIntent) { 2020 findViewById(R.id.shutter_button).setVisibility(View.VISIBLE); 2021 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2022 for (int id : pickIds) { 2023 View button = findViewById(id); 2024 ((View) button.getParent()).setVisibility(View.GONE); 2025 } 2026 } 2027 } 2028 2029 private int calculatePicturesRemaining() { 2030 mPicturesRemaining = MenuHelper.calculatePicturesRemaining(); 2031 return mPicturesRemaining; 2032 } 2033 2034 @Override 2035 public boolean onPrepareOptionsMenu(Menu menu) { 2036 super.onPrepareOptionsMenu(menu); 2037 // Only show the menu when camera is idle. 2038 for (int i = 0; i < menu.size(); i++) { 2039 menu.getItem(i).setVisible(isCameraIdle()); 2040 } 2041 2042 return true; 2043 } 2044 2045 @Override 2046 public boolean onCreateOptionsMenu(Menu menu) { 2047 super.onCreateOptionsMenu(menu); 2048 2049 if (mIsImageCaptureIntent) { 2050 // No options menu for attach mode. 2051 return false; 2052 } else { 2053 addBaseMenuItems(menu); 2054 } 2055 return true; 2056 } 2057 2058 private void addBaseMenuItems(Menu menu) { 2059 MenuHelper.addSwitchModeMenuItem(menu, true, new Runnable() { 2060 public void run() { 2061 switchToVideoMode(); 2062 } 2063 }); 2064 MenuItem gallery = menu.add(Menu.NONE, Menu.NONE, 2065 MenuHelper.POSITION_GOTO_GALLERY, 2066 R.string.camera_gallery_photos_text) 2067 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2068 public boolean onMenuItemClick(MenuItem item) { 2069 gotoGallery(); 2070 return true; 2071 } 2072 }); 2073 gallery.setIcon(android.R.drawable.ic_menu_gallery); 2074 mGalleryItems.add(gallery); 2075 } 2076 2077 private boolean switchToVideoMode() { 2078 if (!isCameraIdle()) return false; 2079 MenuHelper.gotoVideoMode(this); 2080 ((ViewGroup) mGLRootView.getParent()).removeView(mGLRootView); 2081 mGLRootView = null; 2082 finish(); 2083 return true; 2084 } 2085 2086 public boolean onSwitchChanged(Switcher source, boolean onOff) { 2087 if (onOff == SWITCH_VIDEO) { 2088 return switchToVideoMode(); 2089 } else { 2090 return true; 2091 } 2092 } 2093 2094 private void onSharedPreferenceChanged() { 2095 // ignore the events after "onPause()" 2096 if (mPausing) return; 2097 2098 boolean recordLocation; 2099 2100 synchronized (mPreferences) { 2101 recordLocation = RecordLocationPreference.get( 2102 mPreferences, getContentResolver()); 2103 mQuickCapture = getQuickCaptureSettings(); 2104 } 2105 2106 if (mRecordLocation != recordLocation) { 2107 if (mRecordLocation) { 2108 startReceivingLocationUpdates(); 2109 } else { 2110 stopReceivingLocationUpdates(); 2111 } 2112 } 2113 2114 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 2115 } 2116 2117 private boolean getQuickCaptureSettings() { 2118 String value = mPreferences.getString( 2119 CameraSettings.KEY_QUICK_CAPTURE, 2120 getString(R.string.pref_camera_quickcapture_default)); 2121 return CameraSettings.QUICK_CAPTURE_ON.equals(value); 2122 } 2123 2124 @Override 2125 public void onUserInteraction() { 2126 super.onUserInteraction(); 2127 keepScreenOnAwhile(); 2128 } 2129 2130 private void resetScreenOn() { 2131 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2132 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2133 } 2134 2135 private void keepScreenOnAwhile() { 2136 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2137 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2138 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2139 } 2140 2141 private static String[] mQualityStrings = {"superfine", "fine", "normal"}; 2142 private static int[] mQualityNumbers = CameraProfile.getImageEncodingQualityLevels(); 2143 private static int DEFAULT_QUALITY = 85; 2144 2145 // Translate from a quality string to a quality number using the system 2146 // properties. 2147 private static int getQualityNumber(String jpegQuality) { 2148 // Find the index of the input string 2149 int index = Util.indexOf(mQualityStrings, jpegQuality); 2150 2151 if (index == -1 || index > mQualityNumbers.length - 1) { 2152 return DEFAULT_QUALITY; 2153 } 2154 return mQualityNumbers[index]; 2155 } 2156 2157 private class MyHeadUpDisplayListener implements HeadUpDisplay.Listener { 2158 2159 // The callback functions here will be called from the GLThread. So, 2160 // we need to post these runnables to the main thread 2161 public void onSharedPreferencesChanged() { 2162 mHandler.post(new Runnable() { 2163 public void run() { 2164 Camera.this.onSharedPreferenceChanged(); 2165 } 2166 }); 2167 } 2168 2169 public void onRestorePreferencesClicked() { 2170 mHandler.post(new Runnable() { 2171 public void run() { 2172 Camera.this.onRestorePreferencesClicked(); 2173 } 2174 }); 2175 } 2176 2177 public void onPopupWindowVisibilityChanged(int visibility) { 2178 } 2179 } 2180 2181 protected void onRestorePreferencesClicked() { 2182 if (mPausing) return; 2183 Runnable runnable = new Runnable() { 2184 public void run() { 2185 mHeadUpDisplay.restorePreferences(mParameters); 2186 } 2187 }; 2188 MenuHelper.confirmAction(this, 2189 getString(R.string.confirm_restore_title), 2190 getString(R.string.confirm_restore_message), 2191 runnable); 2192 } 2193} 2194 2195class FocusRectangle extends View { 2196 2197 @SuppressWarnings("unused") 2198 private static final String TAG = "FocusRectangle"; 2199 2200 public FocusRectangle(Context context, AttributeSet attrs) { 2201 super(context, attrs); 2202 } 2203 2204 private void setDrawable(int resid) { 2205 setBackgroundDrawable(getResources().getDrawable(resid)); 2206 } 2207 2208 public void showStart() { 2209 setDrawable(R.drawable.focus_focusing); 2210 } 2211 2212 public void showSuccess() { 2213 setDrawable(R.drawable.focus_focused); 2214 } 2215 2216 public void showFail() { 2217 setDrawable(R.drawable.focus_focus_failed); 2218 } 2219 2220 public void clear() { 2221 setBackgroundDrawable(null); 2222 } 2223} 2224