Camera.java revision 232700d54651dcaefb378dc22bdb008a9815d1cd
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 com.android.camera.ui.CameraHeadUpDisplay; 20import com.android.camera.ui.CameraPicker; 21import com.android.camera.ui.FocusRectangle; 22import com.android.camera.ui.GLRootView; 23import com.android.camera.ui.HeadUpDisplay; 24import com.android.camera.ui.IndicatorWheel; 25import com.android.camera.ui.ZoomControllerListener; 26import com.android.camera.ui.ZoomPicker; 27 28import android.app.Activity; 29import android.content.ActivityNotFoundException; 30import android.content.BroadcastReceiver; 31import android.content.ContentProviderClient; 32import android.content.ContentResolver; 33import android.content.Context; 34import android.content.Intent; 35import android.content.IntentFilter; 36import android.content.SharedPreferences.Editor; 37import android.content.res.Configuration; 38import android.content.res.Resources; 39import android.database.Cursor; 40import android.graphics.Bitmap; 41import android.graphics.BitmapFactory; 42import android.hardware.Camera.CameraInfo; 43import android.hardware.Camera.Parameters; 44import android.hardware.Camera.PictureCallback; 45import android.hardware.Camera.Size; 46import android.location.Location; 47import android.location.LocationManager; 48import android.location.LocationProvider; 49import android.media.AudioManager; 50import android.media.ToneGenerator; 51import android.net.Uri; 52import android.os.Build; 53import android.os.Bundle; 54import android.os.Handler; 55import android.os.Looper; 56import android.os.Message; 57import android.os.MessageQueue; 58import android.os.SystemClock; 59import android.provider.MediaStore; 60import android.provider.Settings; 61import android.provider.MediaStore.Images.ImageColumns; 62import android.provider.MediaStore.Images.Media; 63import android.util.Log; 64import android.view.GestureDetector; 65import android.view.KeyEvent; 66import android.view.LayoutInflater; 67import android.view.Menu; 68import android.view.MenuItem; 69import android.view.MotionEvent; 70import android.view.OrientationEventListener; 71import android.view.SurfaceHolder; 72import android.view.SurfaceView; 73import android.view.View; 74import android.view.ViewGroup; 75import android.view.ViewStub; 76import android.view.Window; 77import android.view.WindowManager; 78import android.view.MenuItem.OnMenuItemClickListener; 79import android.widget.Button; 80import android.widget.Toast; 81 82import java.io.File; 83import java.io.FileNotFoundException; 84import java.io.FileOutputStream; 85import java.io.IOException; 86import java.io.OutputStream; 87import java.text.SimpleDateFormat; 88import java.util.ArrayList; 89import java.util.Collections; 90import java.util.Date; 91import java.util.HashMap; 92import java.util.List; 93 94/** The Camera activity which can preview and take pictures. */ 95public class Camera extends NoSearchActivity implements View.OnClickListener, 96 ShutterButton.OnShutterButtonListener, SurfaceHolder.Callback, 97 Switcher.OnSwitchListener { 98 99 private static final String TAG = "camera"; 100 101 private static final String LAST_THUMB_PATH = 102 Storage.THUMBNAILS + "/image_last_thumb"; 103 104 private static final int CROP_MSG = 1; 105 private static final int FIRST_TIME_INIT = 2; 106 private static final int RESTART_PREVIEW = 3; 107 private static final int CLEAR_SCREEN_DELAY = 4; 108 private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 5; 109 private static final int CHECK_DISPLAY_ROTATION = 6; 110 111 // The subset of parameters we need to update in setCameraParameters(). 112 private static final int UPDATE_PARAM_INITIALIZE = 1; 113 private static final int UPDATE_PARAM_ZOOM = 2; 114 private static final int UPDATE_PARAM_PREFERENCE = 4; 115 private static final int UPDATE_PARAM_ALL = -1; 116 117 // When setCameraParametersWhenIdle() is called, we accumulate the subsets 118 // needed to be updated in mUpdateSet. 119 private int mUpdateSet; 120 121 // The brightness settings used when it is set to automatic in the system. 122 // The reason why it is set to 0.7 is just because 1.0 is too bright. 123 private static final float DEFAULT_CAMERA_BRIGHTNESS = 0.7f; 124 125 private static final int SCREEN_DELAY = 2 * 60 * 1000; 126 private static final int FOCUS_BEEP_VOLUME = 100; 127 128 private static final int ZOOM_STOPPED = 0; 129 private static final int ZOOM_START = 1; 130 private static final int ZOOM_STOPPING = 2; 131 132 private int mZoomState = ZOOM_STOPPED; 133 private boolean mSmoothZoomSupported = false; 134 private int mZoomValue; // The current zoom value. 135 private int mZoomMax; 136 private int mTargetZoomValue; 137 private ZoomPicker mZoomPicker; 138 139 private Parameters mParameters; 140 private Parameters mInitialParams; 141 142 private MyOrientationEventListener mOrientationListener; 143 // The device orientation in degrees. Default is unknown. 144 private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 145 // The orientation compensation for icons and thumbnails. 146 private int mOrientationCompensation = 0; 147 private ComboPreferences mPreferences; 148 149 private static final int IDLE = 1; 150 private static final int SNAPSHOT_IN_PROGRESS = 2; 151 152 private static final boolean SWITCH_CAMERA = true; 153 private static final boolean SWITCH_VIDEO = false; 154 155 private int mStatus = IDLE; 156 private static final String sTempCropFilename = "crop-temp"; 157 158 private android.hardware.Camera mCameraDevice; 159 private ContentProviderClient mMediaProviderClient; 160 private SurfaceView mSurfaceView; 161 private SurfaceHolder mSurfaceHolder = null; 162 private ShutterButton mShutterButton; 163 private FocusRectangle mFocusRectangle; 164 private ToneGenerator mFocusToneGenerator; 165 private GestureDetector mPopupGestureDetector; 166 private SwitcherSet mSwitcher; 167 private boolean mStartPreviewFail = false; 168 169 private GLRootView mGLRootView; 170 171 // The last captured picture. 172 private RotateImageView mThumbnailButton; 173 174 // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. 175 private String mCropValue; 176 private Uri mSaveUri; 177 178 // GPS on-screen indicator 179 private View mGpsNoSignalView; 180 private View mGpsHasSignalView; 181 182 // Front/Back camera pciker for xlarge layout 183 private CameraPicker mCameraPicker; 184 185 /** 186 * An unpublished intent flag requesting to return as soon as capturing 187 * is completed. 188 * 189 * TODO: consider publishing by moving into MediaStore. 190 */ 191 private final static String EXTRA_QUICK_CAPTURE = 192 "android.intent.extra.quickCapture"; 193 194 private boolean mPreviewing; 195 // The display rotation in degrees. This is only valid when mPreviewing is 196 // true. 197 private int mDisplayRotation; 198 private boolean mPausing; 199 private boolean mFirstTimeInitialized; 200 private boolean mIsImageCaptureIntent; 201 private boolean mRecordLocation; 202 203 private static final int FOCUS_NOT_STARTED = 0; 204 private static final int FOCUSING = 1; 205 private static final int FOCUSING_SNAP_ON_FINISH = 2; 206 private static final int FOCUS_SUCCESS = 3; 207 private static final int FOCUS_FAIL = 4; 208 private int mFocusState = FOCUS_NOT_STARTED; 209 210 private ContentResolver mContentResolver; 211 private boolean mDidRegister = false; 212 213 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 214 215 private LocationManager mLocationManager = null; 216 217 private final ShutterCallback mShutterCallback = new ShutterCallback(); 218 private final PostViewPictureCallback mPostViewPictureCallback = 219 new PostViewPictureCallback(); 220 private final RawPictureCallback mRawPictureCallback = 221 new RawPictureCallback(); 222 private final AutoFocusCallback mAutoFocusCallback = 223 new AutoFocusCallback(); 224 private final ZoomListener mZoomListener = new ZoomListener(); 225 private final CameraErrorCallback mErrorCallback = new CameraErrorCallback(); 226 227 private long mFocusStartTime; 228 private long mFocusCallbackTime; 229 private long mCaptureStartTime; 230 private long mShutterCallbackTime; 231 private long mPostViewPictureCallbackTime; 232 private long mRawPictureCallbackTime; 233 private long mJpegPictureCallbackTime; 234 private long mOnResumeTime; 235 private long mPicturesRemaining; 236 private byte[] mJpegImageData; 237 238 // These latency time are for the CameraLatency test. 239 public long mAutoFocusTime; 240 public long mShutterLag; 241 public long mShutterToPictureDisplayedTime; 242 public long mPictureDisplayedToJpegCallbackTime; 243 public long mJpegCallbackFinishTime; 244 245 // Focus mode. Options are pref_camera_focusmode_entryvalues. 246 private String mFocusMode; 247 private String mSceneMode; 248 private Toast mNotSelectableToast; 249 250 private final Handler mHandler = new MainHandler(); 251 // xlarge devices use indicator wheel. Other devices use head-up display. 252 private CameraHeadUpDisplay mHeadUpDisplay; 253 private IndicatorWheel mIndicatorWheel; 254 private PreferenceGroup mPreferenceGroup; 255 256 // multiple cameras support 257 private int mNumberOfCameras; 258 private int mCameraId; 259 private int mFrontCameraId; 260 private int mBackCameraId; 261 262 private boolean mQuickCapture; 263 264 /** 265 * This Handler is used to post message back onto the main thread of the 266 * application 267 */ 268 private class MainHandler extends Handler { 269 @Override 270 public void handleMessage(Message msg) { 271 switch (msg.what) { 272 case RESTART_PREVIEW: { 273 restartPreview(); 274 if (mJpegPictureCallbackTime != 0) { 275 long now = System.currentTimeMillis(); 276 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 277 Log.v(TAG, "mJpegCallbackFinishTime = " 278 + mJpegCallbackFinishTime + "ms"); 279 mJpegPictureCallbackTime = 0; 280 } 281 break; 282 } 283 284 case CLEAR_SCREEN_DELAY: { 285 getWindow().clearFlags( 286 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 287 break; 288 } 289 290 case FIRST_TIME_INIT: { 291 initializeFirstTime(); 292 break; 293 } 294 295 case SET_CAMERA_PARAMETERS_WHEN_IDLE: { 296 setCameraParametersWhenIdle(0); 297 break; 298 } 299 300 case CHECK_DISPLAY_ROTATION: { 301 // Restart the preview if display rotation has changed. 302 // Sometimes this happens when the device is held upside 303 // down and camera app is opened. Rotation animation will 304 // take some time and the rotation value we have got may be 305 // wrong. Framework does not have a callback for this now. 306 if (Util.getDisplayRotation(Camera.this) != mDisplayRotation 307 && isCameraIdle()) { 308 restartPreview(); 309 } 310 if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) { 311 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 312 } 313 break; 314 } 315 } 316 } 317 } 318 319 private void resetExposureCompensation() { 320 String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, 321 CameraSettings.EXPOSURE_DEFAULT_VALUE); 322 if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { 323 Editor editor = mPreferences.edit(); 324 editor.putString(CameraSettings.KEY_EXPOSURE, "0"); 325 editor.apply(); 326 if (mHeadUpDisplay != null) { 327 mHeadUpDisplay.reloadPreferences(); 328 } 329 } 330 } 331 332 private void keepMediaProviderInstance() { 333 // We want to keep a reference to MediaProvider in camera's lifecycle. 334 // TODO: Utilize mMediaProviderClient instance to replace 335 // ContentResolver calls. 336 if (mMediaProviderClient == null) { 337 mMediaProviderClient = getContentResolver() 338 .acquireContentProviderClient(MediaStore.AUTHORITY); 339 } 340 } 341 342 // Snapshots can only be taken after this is called. It should be called 343 // once only. We could have done these things in onCreate() but we want to 344 // make preview screen appear as soon as possible. 345 private void initializeFirstTime() { 346 if (mFirstTimeInitialized) return; 347 348 // Create orientation listenter. This should be done first because it 349 // takes some time to get first orientation. 350 mOrientationListener = new MyOrientationEventListener(Camera.this); 351 mOrientationListener.enable(); 352 353 // Initialize location sevice. 354 mLocationManager = (LocationManager) 355 getSystemService(Context.LOCATION_SERVICE); 356 mRecordLocation = RecordLocationPreference.get( 357 mPreferences, getContentResolver()); 358 initGpsOnScreenIndicator(); 359 if (mRecordLocation) startReceivingLocationUpdates(); 360 361 keepMediaProviderInstance(); 362 checkStorage(); 363 364 // Initialize last picture button. 365 mContentResolver = getContentResolver(); 366 if (!mIsImageCaptureIntent) { 367 findViewById(R.id.camera_switch).setOnClickListener(this); 368 initThumbnailButton(); 369 } 370 371 // Initialize shutter button. 372 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 373 mShutterButton.setOnShutterButtonListener(this); 374 mShutterButton.setVisibility(View.VISIBLE); 375 376 mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); 377 updateFocusIndicator(); 378 379 initializeScreenBrightness(); 380 installIntentFilter(); 381 initializeFocusTone(); 382 initializeZoom(); 383 // xlarge devices use indicator wheel. Other devices use head-up display. 384 if (mIndicatorWheel == null) { 385 mHeadUpDisplay = new CameraHeadUpDisplay(this); 386 mHeadUpDisplay.setListener(new MyHeadUpDisplayListener()); 387 initializeHeadUpDisplay(); 388 } 389 mFirstTimeInitialized = true; 390 changeHeadUpDisplayState(); 391 addIdleHandler(); 392 } 393 394 private void addIdleHandler() { 395 MessageQueue queue = Looper.myQueue(); 396 queue.addIdleHandler(new MessageQueue.IdleHandler() { 397 public boolean queueIdle() { 398 Storage.ensureOSXCompatible(); 399 return false; 400 } 401 }); 402 } 403 404 private void initThumbnailButton() { 405 mThumbnailButton = 406 (RotateImageView) findViewById(R.id.review_thumbnail); 407 if (mThumbnailButton != null) { 408 mThumbnailButton.setOnClickListener(this); 409 mThumbnailButton.loadData(LAST_THUMB_PATH); 410 updateThumbnailButton(); 411 } 412 } 413 414 private void updateThumbnailButton() { 415 if (mThumbnailButton == null) return; 416 // Update last image if URI is invalid and the storage is ready. 417 if (!mThumbnailButton.isUriValid() && mPicturesRemaining >= 0) { 418 Storage.Thumbnail thumbnail = 419 Storage.getLastImageThumbnail(mContentResolver); 420 if (thumbnail != null) { 421 mThumbnailButton.setData(thumbnail.getOriginalUri(), 422 thumbnail.getBitmap(mContentResolver)); 423 } else { 424 mThumbnailButton.setData(null, null); 425 } 426 } 427 mThumbnailButton.setVisibility( 428 (mThumbnailButton.getUri() != null) ? View.VISIBLE : View.GONE); 429 } 430 431 // If the activity is paused and resumed, this method will be called in 432 // onResume. 433 private void initializeSecondTime() { 434 // Start orientation listener as soon as possible because it takes 435 // some time to get first orientation. 436 mOrientationListener.enable(); 437 438 // Start location update if needed. 439 mRecordLocation = RecordLocationPreference.get( 440 mPreferences, getContentResolver()); 441 if (mRecordLocation) startReceivingLocationUpdates(); 442 443 installIntentFilter(); 444 initializeFocusTone(); 445 initializeZoom(); 446 changeHeadUpDisplayState(); 447 448 keepMediaProviderInstance(); 449 checkStorage(); 450 451 if (!mIsImageCaptureIntent) { 452 updateThumbnailButton(); 453 } 454 } 455 456 private void initializeZoom() { 457 if (!mParameters.isZoomSupported()) return; 458 459 mZoomMax = mParameters.getMaxZoom(); 460 mSmoothZoomSupported = mParameters.isSmoothZoomSupported(); 461 if (mZoomPicker != null) { 462 mZoomPicker.setZoomRatios(getZoomRatios()); 463 mZoomPicker.setZoomIndex(mParameters.getZoom()); 464 mZoomPicker.setSmoothZoomSupported(mSmoothZoomSupported); 465 mZoomPicker.setOnZoomChangeListener( 466 new ZoomPicker.OnZoomChangedListener() { 467 // only for immediate zoom 468 public void onZoomValueChanged(int index) { 469 Camera.this.onZoomValueChanged(index); 470 } 471 472 // only for smooth zoom 473 public void onZoomStateChanged(int state) { 474 if (mPausing) return; 475 476 Log.v(TAG, "zoom picker state=" + state); 477 if (state == mZoomPicker.ZOOM_IN) { 478 Camera.this.onZoomValueChanged(mZoomMax); 479 } else if (state == mZoomPicker.ZOOM_OUT){ 480 Camera.this.onZoomValueChanged(0); 481 } else { 482 mTargetZoomValue = -1; 483 if (mZoomState == ZOOM_START) { 484 mZoomState = ZOOM_STOPPING; 485 mCameraDevice.stopSmoothZoom(); 486 } 487 } 488 } 489 }); 490 } 491 492 mCameraDevice.setZoomChangeListener(mZoomListener); 493 } 494 495 private void onZoomValueChanged(int index) { 496 // Not useful to change zoom value when the activity is paused. 497 if (mPausing) return; 498 499 if (mSmoothZoomSupported) { 500 if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { 501 mTargetZoomValue = index; 502 if (mZoomState == ZOOM_START) { 503 mZoomState = ZOOM_STOPPING; 504 mCameraDevice.stopSmoothZoom(); 505 } 506 } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { 507 mTargetZoomValue = index; 508 mCameraDevice.startSmoothZoom(index); 509 mZoomState = ZOOM_START; 510 } 511 } else { 512 mZoomValue = index; 513 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 514 } 515 } 516 517 private float[] getZoomRatios() { 518 if(!mParameters.isZoomSupported()) return null; 519 List<Integer> zoomRatios = mParameters.getZoomRatios(); 520 float result[] = new float[zoomRatios.size()]; 521 for (int i = 0, n = result.length; i < n; ++i) { 522 result[i] = (float) zoomRatios.get(i) / 100f; 523 } 524 return result; 525 } 526 527 private int mLocation[] = new int[2]; 528 private class PopupGestureListener extends 529 GestureDetector.SimpleOnGestureListener { 530 public boolean onDown(MotionEvent e) { 531 // Check if the popup window is visible. 532 View v = mIndicatorWheel.getActivePopupWindow(); 533 if (v == null) return false; 534 535 int x = Math.round(e.getX()); 536 int y = Math.round(e.getY()); 537 538 // Dismiss the popup window if users touch on the outside. 539 v.getLocationOnScreen(mLocation); 540 if (x < mLocation[0] || (x > mLocation[0] + v.getWidth()) 541 || y < mLocation[1] || (y > mLocation[1] + v.getHeight())) { 542 // Let indicator wheel handle its own event. 543 mIndicatorWheel.getLocationOnScreen(mLocation); 544 if (x < mLocation[0] || (x > mLocation[0] + mIndicatorWheel.getWidth()) 545 || y < mLocation[1] || (y > mLocation[1] + mIndicatorWheel.getHeight())) { 546 mIndicatorWheel.dismissSettingPopup(); 547 } 548 // Let event fall through. 549 } 550 return false; 551 } 552 } 553 554 @Override 555 public boolean dispatchTouchEvent(MotionEvent m) { 556 // Check if the popup window should be dismissed first. 557 if (mPopupGestureDetector != null && mPopupGestureDetector.onTouchEvent(m)) { 558 return true; 559 } 560 561 return super.dispatchTouchEvent(m); 562 } 563 564 LocationListener [] mLocationListeners = new LocationListener[] { 565 new LocationListener(LocationManager.GPS_PROVIDER), 566 new LocationListener(LocationManager.NETWORK_PROVIDER) 567 }; 568 569 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 570 @Override 571 public void onReceive(Context context, Intent intent) { 572 String action = intent.getAction(); 573 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 574 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 575 || action.equals(Intent.ACTION_MEDIA_CHECKING)) { 576 checkStorage(); 577 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 578 checkStorage(); 579 if (!mIsImageCaptureIntent) { 580 updateThumbnailButton(); 581 } 582 } 583 } 584 }; 585 586 private void initializeCameraPicker() { 587 mCameraPicker = (CameraPicker) findViewById(R.id.camera_picker); 588 if (mCameraPicker != null) { 589 mCameraPicker.setImageResource(R.drawable.camera_toggle); 590 ListPreference pref = mPreferenceGroup.findPreference( 591 CameraSettings.KEY_CAMERA_ID); 592 if (pref != null) { 593 mCameraPicker.initialize(pref); 594 mCameraPicker.setListener(new MyCameraPickerListener()); 595 } 596 } 597 } 598 599 private void initGpsOnScreenIndicator() { 600 mGpsNoSignalView = findViewById(R.id.onscreen_gps_indicator_no_signal); 601 mGpsHasSignalView = findViewById(R.id.onscreen_gps_indicator_on); 602 } 603 604 private void showGpsOnScreenIndicator(boolean hasSignal) { 605 if (hasSignal) { 606 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.INVISIBLE); 607 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.VISIBLE); 608 } else { 609 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.VISIBLE); 610 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.INVISIBLE); 611 } 612 } 613 614 private void hideGpsOnScreenIndicator() { 615 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.INVISIBLE); 616 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.INVISIBLE); 617 } 618 619 private class LocationListener 620 implements android.location.LocationListener { 621 Location mLastLocation; 622 boolean mValid = false; 623 String mProvider; 624 625 public LocationListener(String provider) { 626 mProvider = provider; 627 mLastLocation = new Location(mProvider); 628 } 629 630 public void onLocationChanged(Location newLocation) { 631 if (newLocation.getLatitude() == 0.0 632 && newLocation.getLongitude() == 0.0) { 633 // Hack to filter out 0.0,0.0 locations 634 return; 635 } 636 // If GPS is available before start camera, we won't get status 637 // update so update GPS indicator when we receive data. 638 if (mRecordLocation 639 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 640 if (mHeadUpDisplay != null) { 641 mHeadUpDisplay.setGpsHasSignal(true); 642 } 643 showGpsOnScreenIndicator(true); 644 } 645 if (!mValid) { 646 Log.d(TAG, "Got first location."); 647 } 648 mLastLocation.set(newLocation); 649 mValid = true; 650 } 651 652 public void onProviderEnabled(String provider) { 653 } 654 655 public void onProviderDisabled(String provider) { 656 mValid = false; 657 } 658 659 public void onStatusChanged( 660 String provider, int status, Bundle extras) { 661 switch(status) { 662 case LocationProvider.OUT_OF_SERVICE: 663 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 664 mValid = false; 665 if (mRecordLocation && 666 LocationManager.GPS_PROVIDER.equals(provider)) { 667 if (mHeadUpDisplay != null) { 668 mHeadUpDisplay.setGpsHasSignal(false); 669 } 670 showGpsOnScreenIndicator(false); 671 } 672 break; 673 } 674 } 675 } 676 677 public Location current() { 678 return mValid ? mLastLocation : null; 679 } 680 } 681 682 private final class ShutterCallback 683 implements android.hardware.Camera.ShutterCallback { 684 public void onShutter() { 685 mShutterCallbackTime = System.currentTimeMillis(); 686 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 687 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 688 clearFocusState(); 689 } 690 } 691 692 private final class PostViewPictureCallback implements PictureCallback { 693 public void onPictureTaken( 694 byte [] data, android.hardware.Camera camera) { 695 mPostViewPictureCallbackTime = System.currentTimeMillis(); 696 Log.v(TAG, "mShutterToPostViewCallbackTime = " 697 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 698 + "ms"); 699 } 700 } 701 702 private final class RawPictureCallback implements PictureCallback { 703 public void onPictureTaken( 704 byte [] rawData, android.hardware.Camera camera) { 705 mRawPictureCallbackTime = System.currentTimeMillis(); 706 Log.v(TAG, "mShutterToRawCallbackTime = " 707 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 708 } 709 } 710 711 private final class JpegPictureCallback implements PictureCallback { 712 Location mLocation; 713 714 public JpegPictureCallback(Location loc) { 715 mLocation = loc; 716 } 717 718 public void onPictureTaken( 719 final byte [] jpegData, final android.hardware.Camera camera) { 720 if (mPausing) { 721 return; 722 } 723 724 mJpegPictureCallbackTime = System.currentTimeMillis(); 725 // If postview callback has arrived, the captured image is displayed 726 // in postview callback. If not, the captured image is displayed in 727 // raw picture callback. 728 if (mPostViewPictureCallbackTime != 0) { 729 mShutterToPictureDisplayedTime = 730 mPostViewPictureCallbackTime - mShutterCallbackTime; 731 mPictureDisplayedToJpegCallbackTime = 732 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 733 } else { 734 mShutterToPictureDisplayedTime = 735 mRawPictureCallbackTime - mShutterCallbackTime; 736 mPictureDisplayedToJpegCallbackTime = 737 mJpegPictureCallbackTime - mRawPictureCallbackTime; 738 } 739 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 740 + mPictureDisplayedToJpegCallbackTime + "ms"); 741 742 if (!mIsImageCaptureIntent) { 743 enableCameraControls(true); 744 745 // We want to show the taken picture for a while, so we wait 746 // for at least 1.2 second before restarting the preview. 747 long delay = 1200 - mPictureDisplayedToJpegCallbackTime; 748 if (delay < 0) { 749 restartPreview(); 750 } else { 751 mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay); 752 } 753 } 754 storeImage(jpegData, camera, mLocation); 755 756 // Check this in advance of each shot so we don't add to shutter 757 // latency. It's true that someone else could write to the SD card in 758 // the mean time and fill it, but that could have happened between the 759 // shutter press and saving the JPEG too. 760 checkStorage(); 761 762 if (!mHandler.hasMessages(RESTART_PREVIEW)) { 763 long now = System.currentTimeMillis(); 764 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 765 Log.v(TAG, "mJpegCallbackFinishTime = " 766 + mJpegCallbackFinishTime + "ms"); 767 mJpegPictureCallbackTime = 0; 768 } 769 } 770 } 771 772 private final class AutoFocusCallback 773 implements android.hardware.Camera.AutoFocusCallback { 774 public void onAutoFocus( 775 boolean focused, android.hardware.Camera camera) { 776 mFocusCallbackTime = System.currentTimeMillis(); 777 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 778 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 779 if (mFocusState == FOCUSING_SNAP_ON_FINISH) { 780 // Take the picture no matter focus succeeds or fails. No need 781 // to play the AF sound if we're about to play the shutter 782 // sound. 783 if (focused) { 784 mFocusState = FOCUS_SUCCESS; 785 } else { 786 mFocusState = FOCUS_FAIL; 787 } 788 capture(); 789 } else if (mFocusState == FOCUSING) { 790 // User is half-pressing the focus key. Play the focus tone. 791 // Do not take the picture now. 792 if (focused) { 793 mFocusState = FOCUS_SUCCESS; 794 if (mFocusToneGenerator != null) { 795 mFocusToneGenerator.startTone(ToneGenerator.TONE_PROP_BEEP2); 796 } 797 } else { 798 mFocusState = FOCUS_FAIL; 799 } 800 } else if (mFocusState == FOCUS_NOT_STARTED) { 801 // User has released the focus key before focus completes. 802 // Do nothing. 803 } 804 updateFocusIndicator(); 805 } 806 } 807 808 private final class ZoomListener 809 implements android.hardware.Camera.OnZoomChangeListener { 810 public void onZoomChange( 811 int value, boolean stopped, android.hardware.Camera camera) { 812 Log.v(TAG, "Zoom changed: value=" + value + ". stopped="+ stopped); 813 mZoomValue = value; 814 815 // Update the UI when we get zoom value. 816 if (mZoomPicker != null) mZoomPicker.setZoomIndex(value); 817 818 // Keep mParameters up to date. We do not getParameter again in 819 // takePicture. If we do not do this, wrong zoom value will be set. 820 mParameters.setZoom(value); 821 822 if (stopped && mZoomState != ZOOM_STOPPED) { 823 if (mTargetZoomValue != -1 && value != mTargetZoomValue) { 824 mCameraDevice.startSmoothZoom(mTargetZoomValue); 825 mZoomState = ZOOM_START; 826 } else { 827 mZoomState = ZOOM_STOPPED; 828 } 829 } 830 } 831 } 832 833 public void storeImage(final byte[] data, 834 android.hardware.Camera camera, Location loc) { 835 if (!mIsImageCaptureIntent) { 836 long dateTaken = System.currentTimeMillis(); 837 String title = createName(dateTaken); 838 839 Storage.Thumbnail thumbnail = Storage.addImage( 840 mContentResolver, title, dateTaken, loc, data); 841 842 if (thumbnail != null && mThumbnailButton != null) { 843 mThumbnailButton.setData(thumbnail.getOriginalUri(), 844 thumbnail.getBitmap(mContentResolver)); 845 mThumbnailButton.setVisibility(View.VISIBLE); 846 847 sendBroadcast(new Intent("com.android.camera.NEW_PICTURE", 848 thumbnail.getOriginalUri())); 849 } 850 } else { 851 mJpegImageData = data; 852 if (!mQuickCapture) { 853 showPostCaptureAlert(); 854 } else { 855 doAttach(); 856 } 857 } 858 } 859 860 private void capture() { 861 // If we are already in the middle of taking a snapshot then ignore. 862 if (mPausing || mStatus == SNAPSHOT_IN_PROGRESS || mCameraDevice == null) { 863 return; 864 } 865 mCaptureStartTime = System.currentTimeMillis(); 866 mPostViewPictureCallbackTime = 0; 867 enableCameraControls(false); 868 mStatus = SNAPSHOT_IN_PROGRESS; 869 mJpegImageData = null; 870 871 // See android.hardware.Camera.Parameters.setRotation for 872 // documentation. 873 int rotation = 0; 874 if (mOrientation != OrientationEventListener.ORIENTATION_UNKNOWN) { 875 CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; 876 if (info.facing == CameraInfo.CAMERA_FACING_FRONT) { 877 rotation = (info.orientation - mOrientation + 360) % 360; 878 } else { // back-facing camera 879 rotation = (info.orientation + mOrientation) % 360; 880 } 881 } 882 mParameters.setRotation(rotation); 883 884 // Clear previous GPS location from the parameters. 885 mParameters.removeGpsData(); 886 887 // We always encode GpsTimeStamp 888 mParameters.setGpsTimestamp(System.currentTimeMillis() / 1000); 889 890 // Set GPS location. 891 Location loc = mRecordLocation ? getCurrentLocation() : null; 892 if (loc != null) { 893 double lat = loc.getLatitude(); 894 double lon = loc.getLongitude(); 895 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 896 897 if (hasLatLon) { 898 Log.d(TAG, "Set gps location"); 899 mParameters.setGpsLatitude(lat); 900 mParameters.setGpsLongitude(lon); 901 mParameters.setGpsProcessingMethod(loc.getProvider().toUpperCase()); 902 if (loc.hasAltitude()) { 903 mParameters.setGpsAltitude(loc.getAltitude()); 904 } else { 905 // for NETWORK_PROVIDER location provider, we may have 906 // no altitude information, but the driver needs it, so 907 // we fake one. 908 mParameters.setGpsAltitude(0); 909 } 910 if (loc.getTime() != 0) { 911 // Location.getTime() is UTC in milliseconds. 912 // gps-timestamp is UTC in seconds. 913 long utcTimeSeconds = loc.getTime() / 1000; 914 mParameters.setGpsTimestamp(utcTimeSeconds); 915 } 916 } else { 917 loc = null; 918 } 919 } 920 921 mCameraDevice.setParameters(mParameters); 922 923 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 924 mPostViewPictureCallback, new JpegPictureCallback(loc)); 925 mPreviewing = false; 926 } 927 928 private boolean saveDataToFile(String filePath, byte[] data) { 929 FileOutputStream f = null; 930 try { 931 f = new FileOutputStream(filePath); 932 f.write(data); 933 } catch (IOException e) { 934 return false; 935 } finally { 936 Util.closeSilently(f); 937 } 938 return true; 939 } 940 941 private String createName(long dateTaken) { 942 Date date = new Date(dateTaken); 943 SimpleDateFormat dateFormat = new SimpleDateFormat( 944 getString(R.string.image_file_name_format)); 945 946 return dateFormat.format(date); 947 } 948 949 @Override 950 public void onCreate(Bundle icicle) { 951 super.onCreate(icicle); 952 953 mIsImageCaptureIntent = isImageCaptureIntent(); 954 if (mIsImageCaptureIntent) { 955 setContentView(R.layout.camera_attach); 956 } else { 957 setContentView(R.layout.camera); 958 } 959 mSurfaceView = (SurfaceView) findViewById(R.id.camera_preview); 960 961 mPreferences = new ComboPreferences(this); 962 CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal()); 963 964 mCameraId = CameraSettings.readPreferredCameraId(mPreferences); 965 966 //Testing purpose. Launch a specific camera through the intent extras. 967 int intentCameraId = Util.getCameraFacingIntentExtras(this); 968 if (intentCameraId != -1) { 969 mCameraId = intentCameraId; 970 } 971 972 mPreferences.setLocalId(this, mCameraId); 973 CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); 974 975 mNumberOfCameras = CameraHolder.instance().getNumberOfCameras(); 976 mQuickCapture = getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false); 977 978 // we need to reset exposure for the preview 979 resetExposureCompensation(); 980 /* 981 * To reduce startup time, we start the preview in another thread. 982 * We make sure the preview is started at the end of onCreate. 983 */ 984 Thread startPreviewThread = new Thread(new Runnable() { 985 public void run() { 986 try { 987 mStartPreviewFail = false; 988 startPreview(); 989 } catch (CameraHardwareException e) { 990 // In eng build, we throw the exception so that test tool 991 // can detect it and report it 992 if ("eng".equals(Build.TYPE)) { 993 throw new RuntimeException(e); 994 } 995 mStartPreviewFail = true; 996 } 997 } 998 }); 999 startPreviewThread.start(); 1000 1001 // don't set mSurfaceHolder here. We have it set ONLY within 1002 // surfaceChanged / surfaceDestroyed, other parts of the code 1003 // assume that when it is set, the surface is also set. 1004 SurfaceHolder holder = mSurfaceView.getHolder(); 1005 holder.addCallback(this); 1006 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 1007 1008 if (mIsImageCaptureIntent) { 1009 setupCaptureParams(); 1010 1011 View reviewControl = findViewById(R.id.review_control); 1012 reviewControl.setVisibility(View.VISIBLE); 1013 reviewControl.findViewById(R.id.btn_cancel).setOnClickListener(this); 1014 reviewControl.findViewById(R.id.btn_retake).setOnClickListener(this); 1015 reviewControl.findViewById(R.id.btn_done).setOnClickListener(this); 1016 } else { 1017 mSwitcher = (SwitcherSet) findViewById(R.id.camera_switch); 1018 mSwitcher.setVisibility(View.VISIBLE); 1019 mSwitcher.setOnSwitchListener(this); 1020 } 1021 1022 // Make sure preview is started. 1023 try { 1024 startPreviewThread.join(); 1025 if (mStartPreviewFail) { 1026 showCameraErrorAndFinish(); 1027 return; 1028 } 1029 } catch (InterruptedException ex) { 1030 // ignore 1031 } 1032 1033 mBackCameraId = CameraHolder.instance().getBackCameraId(); 1034 mFrontCameraId = CameraHolder.instance().getFrontCameraId(); 1035 1036 // Do this after starting preview because it depends on camera 1037 // parameters. 1038 initializeIndicatorWheel(); 1039 initializeCameraPicker(); 1040 1041 mZoomPicker = (ZoomPicker) findViewById(R.id.zoom_picker); 1042 if (mZoomPicker != null) mZoomPicker.setEnabled(true); // disabled initially in xml 1043 } 1044 1045 private void changeHeadUpDisplayState() { 1046 if (mHeadUpDisplay == null) return; 1047 // If the camera resumes behind the lock screen, the orientation 1048 // will be portrait. That causes OOM when we try to allocation GPU 1049 // memory for the GLSurfaceView again when the orientation changes. So, 1050 // we delayed initialization of HeadUpDisplay until the orientation 1051 // becomes landscape. 1052 Configuration config = getResources().getConfiguration(); 1053 if (config.orientation == Configuration.ORIENTATION_LANDSCAPE 1054 && !mPausing && mFirstTimeInitialized) { 1055 if (mGLRootView == null) attachHeadUpDisplay(); 1056 } else if (mGLRootView != null) { 1057 detachHeadUpDisplay(); 1058 } 1059 } 1060 1061 private void overrideCameraSettings(final String flashMode, 1062 final String whiteBalance, final String focusMode) { 1063 if (mHeadUpDisplay != null) { 1064 mHeadUpDisplay.overrideSettings( 1065 CameraSettings.KEY_FLASH_MODE, flashMode, 1066 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 1067 CameraSettings.KEY_FOCUS_MODE, focusMode); 1068 } 1069 if (mIndicatorWheel != null) { 1070 mIndicatorWheel.overrideSettings( 1071 CameraSettings.KEY_FLASH_MODE, flashMode, 1072 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 1073 CameraSettings.KEY_FOCUS_MODE, focusMode); 1074 } 1075 } 1076 1077 private void updateSceneModeUI() { 1078 // If scene mode is set, we cannot set flash mode, white balance, and 1079 // focus mode, instead, we read it from driver 1080 if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1081 overrideCameraSettings(mParameters.getFlashMode(), 1082 mParameters.getWhiteBalance(), mParameters.getFocusMode()); 1083 } else { 1084 overrideCameraSettings(null, null, null); 1085 } 1086 } 1087 1088 private void loadCameraPreferences() { 1089 CameraSettings settings = new CameraSettings(this, mInitialParams, 1090 mCameraId, CameraHolder.instance().getCameraInfo()); 1091 mPreferenceGroup = settings.getPreferenceGroup(R.xml.camera_preferences); 1092 } 1093 1094 private void initializeIndicatorWheel() { 1095 mIndicatorWheel = (IndicatorWheel) findViewById(R.id.indicator_wheel); 1096 if (mIndicatorWheel == null) return; 1097 loadCameraPreferences(); 1098 1099 String[] keys = new String[]{CameraSettings.KEY_FLASH_MODE, 1100 CameraSettings.KEY_WHITE_BALANCE, 1101 CameraSettings.KEY_COLOR_EFFECT, 1102 CameraSettings.KEY_SCENE_MODE}; 1103 mIndicatorWheel.initialize(this, mPreferenceGroup, keys, true); 1104 mIndicatorWheel.setListener(new MyIndicatorWheelListener()); 1105 mPopupGestureDetector = new GestureDetector(this, 1106 new PopupGestureListener()); 1107 updateSceneModeUI(); 1108 } 1109 1110 private void initializeHeadUpDisplay() { 1111 if (mHeadUpDisplay == null) return; 1112 loadCameraPreferences(); 1113 1114 // If we have zoom picker, do not show zoom control on head-up display. 1115 float[] zoomRatios = null; 1116 if (mZoomPicker == null) zoomRatios = getZoomRatios(); 1117 mHeadUpDisplay.initialize(this, mPreferenceGroup, 1118 zoomRatios, mOrientationCompensation); 1119 if (mZoomPicker == null && mParameters.isZoomSupported()) { 1120 mHeadUpDisplay.setZoomListener(new ZoomControllerListener() { 1121 public void onZoomChanged( 1122 int index, float ratio, boolean isMoving) { 1123 onZoomValueChanged(index); 1124 } 1125 }); 1126 } 1127 updateSceneModeUI(); 1128 } 1129 1130 private void attachHeadUpDisplay() { 1131 mHeadUpDisplay.setOrientation(mOrientationCompensation); 1132 if (mParameters.isZoomSupported()) { 1133 mHeadUpDisplay.setZoomIndex(mZoomValue); 1134 } 1135 ViewGroup frame = (ViewGroup) findViewById(R.id.frame); 1136 mGLRootView = new GLRootView(this); 1137 mGLRootView.setContentPane(mHeadUpDisplay); 1138 frame.addView(mGLRootView); 1139 } 1140 1141 private void detachHeadUpDisplay() { 1142 mHeadUpDisplay.setGpsHasSignal(false); 1143 mHeadUpDisplay.collapse(); 1144 ((ViewGroup) mGLRootView.getParent()).removeView(mGLRootView); 1145 mGLRootView = null; 1146 } 1147 1148 private boolean collapseCameraControls() { 1149 if (mHeadUpDisplay != null && mHeadUpDisplay.collapse()) { 1150 return true; 1151 } 1152 if (mIndicatorWheel != null && mIndicatorWheel.dismissSettingPopup()) { 1153 return true; 1154 } 1155 return false; 1156 } 1157 1158 private void enableCameraControls(boolean enable) { 1159 if (mHeadUpDisplay != null) mHeadUpDisplay.setEnabled(enable); 1160 if (mIndicatorWheel != null) mIndicatorWheel.setEnabled(enable); 1161 if (mCameraPicker != null) mCameraPicker.setEnabled(enable); 1162 if (mZoomPicker != null) mZoomPicker.setEnabled(enable); 1163 if (mSwitcher != null) mSwitcher.setEnabled(enable); 1164 } 1165 1166 public static int roundOrientation(int orientation) { 1167 return ((orientation + 45) / 90 * 90) % 360; 1168 } 1169 1170 private class MyOrientationEventListener 1171 extends OrientationEventListener { 1172 public MyOrientationEventListener(Context context) { 1173 super(context); 1174 } 1175 1176 @Override 1177 public void onOrientationChanged(int orientation) { 1178 // We keep the last known orientation. So if the user first orient 1179 // the camera then point the camera to floor or sky, we still have 1180 // the correct orientation. 1181 if (orientation == ORIENTATION_UNKNOWN) return; 1182 mOrientation = roundOrientation(orientation); 1183 // When the screen is unlocked, display rotation may change. Always 1184 // calculate the up-to-date orientationCompensation. 1185 int orientationCompensation = mOrientation 1186 + Util.getDisplayRotation(Camera.this); 1187 if (mOrientationCompensation != orientationCompensation) { 1188 mOrientationCompensation = orientationCompensation; 1189 if (!mIsImageCaptureIntent) { 1190 setOrientationIndicator(mOrientationCompensation); 1191 } 1192 if (mHeadUpDisplay != null) { 1193 mHeadUpDisplay.setOrientation(mOrientationCompensation); 1194 } 1195 } 1196 } 1197 } 1198 1199 private void setOrientationIndicator(int degree) { 1200 RotateImageView icon = (RotateImageView) findViewById( 1201 R.id.review_thumbnail); 1202 if (icon != null) icon.setDegree(degree); 1203 1204 icon = (RotateImageView) findViewById(R.id.camera_switch_icon); 1205 if (icon != null) icon.setDegree(degree); 1206 icon = (RotateImageView) findViewById(R.id.video_switch_icon); 1207 if (icon != null) icon.setDegree(degree); 1208 } 1209 1210 @Override 1211 public void onStart() { 1212 super.onStart(); 1213 if (!mIsImageCaptureIntent) { 1214 mSwitcher.setSwitch(SWITCH_CAMERA); 1215 } 1216 } 1217 1218 @Override 1219 public void onStop() { 1220 super.onStop(); 1221 if (mMediaProviderClient != null) { 1222 mMediaProviderClient.release(); 1223 mMediaProviderClient = null; 1224 } 1225 } 1226 1227 private void checkStorage() { 1228 mPicturesRemaining = Storage.getAvailableSpace(); 1229 if (mPicturesRemaining > 0) { 1230 mPicturesRemaining /= 1500000; 1231 } 1232 updateStorageHint(); 1233 } 1234 1235 public void onClick(View v) { 1236 switch (v.getId()) { 1237 case R.id.btn_retake: 1238 hidePostCaptureAlert(); 1239 restartPreview(); 1240 break; 1241 case R.id.review_thumbnail: 1242 if (isCameraIdle()) { 1243 viewImage(mThumbnailButton); 1244 } 1245 break; 1246 case R.id.btn_done: 1247 doAttach(); 1248 break; 1249 case R.id.btn_cancel: 1250 doCancel(); 1251 break; 1252 case R.id.btn_gallery: 1253 gotoGallery(); 1254 break; 1255 } 1256 } 1257 1258 private void doAttach() { 1259 if (mPausing) { 1260 return; 1261 } 1262 1263 byte[] data = mJpegImageData; 1264 1265 if (mCropValue == null) { 1266 // First handle the no crop case -- just return the value. If the 1267 // caller specifies a "save uri" then write the data to it's 1268 // stream. Otherwise, pass back a scaled down version of the bitmap 1269 // directly in the extras. 1270 if (mSaveUri != null) { 1271 OutputStream outputStream = null; 1272 try { 1273 outputStream = mContentResolver.openOutputStream(mSaveUri); 1274 outputStream.write(data); 1275 outputStream.close(); 1276 1277 setResult(RESULT_OK); 1278 finish(); 1279 } catch (IOException ex) { 1280 // ignore exception 1281 } finally { 1282 Util.closeSilently(outputStream); 1283 } 1284 } else { 1285 int orientation = Exif.getOrientation(data); 1286 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1287 bitmap = Util.rotate(bitmap, orientation); 1288 setResult(RESULT_OK, 1289 new Intent("inline-data").putExtra("data", bitmap)); 1290 finish(); 1291 } 1292 } else { 1293 // Save the image to a temp file and invoke the cropper 1294 Uri tempUri = null; 1295 FileOutputStream tempStream = null; 1296 try { 1297 File path = getFileStreamPath(sTempCropFilename); 1298 path.delete(); 1299 tempStream = openFileOutput(sTempCropFilename, 0); 1300 tempStream.write(data); 1301 tempStream.close(); 1302 tempUri = Uri.fromFile(path); 1303 } catch (FileNotFoundException ex) { 1304 setResult(Activity.RESULT_CANCELED); 1305 finish(); 1306 return; 1307 } catch (IOException ex) { 1308 setResult(Activity.RESULT_CANCELED); 1309 finish(); 1310 return; 1311 } finally { 1312 Util.closeSilently(tempStream); 1313 } 1314 1315 Bundle newExtras = new Bundle(); 1316 if (mCropValue.equals("circle")) { 1317 newExtras.putString("circleCrop", "true"); 1318 } 1319 if (mSaveUri != null) { 1320 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1321 } else { 1322 newExtras.putBoolean("return-data", true); 1323 } 1324 1325 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1326 1327 cropIntent.setData(tempUri); 1328 cropIntent.putExtras(newExtras); 1329 1330 startActivityForResult(cropIntent, CROP_MSG); 1331 } 1332 } 1333 1334 private void doCancel() { 1335 setResult(RESULT_CANCELED, new Intent()); 1336 finish(); 1337 } 1338 1339 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1340 if (mPausing) { 1341 return; 1342 } 1343 switch (button.getId()) { 1344 case R.id.shutter_button: 1345 doFocus(pressed); 1346 break; 1347 } 1348 } 1349 1350 public void onShutterButtonClick(ShutterButton button) { 1351 if (mPausing) { 1352 return; 1353 } 1354 switch (button.getId()) { 1355 case R.id.shutter_button: 1356 doSnap(); 1357 break; 1358 } 1359 } 1360 1361 private OnScreenHint mStorageHint; 1362 1363 private void updateStorageHint() { 1364 String noStorageText = null; 1365 1366 if (mPicturesRemaining == Storage.UNAVAILABLE) { 1367 noStorageText = getString(R.string.no_storage); 1368 } else if (mPicturesRemaining == Storage.PREPARING) { 1369 noStorageText = getString(R.string.preparing_sd); 1370 } else if (mPicturesRemaining == Storage.UNKNOWN_SIZE) { 1371 noStorageText = getString(R.string.access_sd_fail); 1372 } else if (mPicturesRemaining < 1L) { 1373 noStorageText = getString(R.string.not_enough_space); 1374 } 1375 1376 if (noStorageText != null) { 1377 if (mStorageHint == null) { 1378 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1379 } else { 1380 mStorageHint.setText(noStorageText); 1381 } 1382 mStorageHint.show(); 1383 } else if (mStorageHint != null) { 1384 mStorageHint.cancel(); 1385 mStorageHint = null; 1386 } 1387 } 1388 1389 private void installIntentFilter() { 1390 // install an intent filter to receive SD card related events. 1391 IntentFilter intentFilter = 1392 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1393 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1394 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1395 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1396 intentFilter.addDataScheme("file"); 1397 registerReceiver(mReceiver, intentFilter); 1398 mDidRegister = true; 1399 } 1400 1401 private void initializeFocusTone() { 1402 // Initialize focus tone generator. 1403 try { 1404 mFocusToneGenerator = new ToneGenerator( 1405 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1406 } catch (Throwable ex) { 1407 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1408 mFocusToneGenerator = null; 1409 } 1410 } 1411 1412 private void initializeScreenBrightness() { 1413 Window win = getWindow(); 1414 // Overright the brightness settings if it is automatic 1415 int mode = Settings.System.getInt( 1416 getContentResolver(), 1417 Settings.System.SCREEN_BRIGHTNESS_MODE, 1418 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); 1419 if (mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC) { 1420 WindowManager.LayoutParams winParams = win.getAttributes(); 1421 winParams.screenBrightness = DEFAULT_CAMERA_BRIGHTNESS; 1422 win.setAttributes(winParams); 1423 } 1424 } 1425 1426 @Override 1427 protected void onResume() { 1428 super.onResume(); 1429 1430 mPausing = false; 1431 mJpegPictureCallbackTime = 0; 1432 mZoomValue = 0; 1433 1434 // Start the preview if it is not started. 1435 if (!mPreviewing && !mStartPreviewFail) { 1436 resetExposureCompensation(); 1437 if (!restartPreview()) return; 1438 } 1439 1440 if (mSurfaceHolder != null) { 1441 // If first time initialization is not finished, put it in the 1442 // message queue. 1443 if (!mFirstTimeInitialized) { 1444 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1445 } else { 1446 initializeSecondTime(); 1447 } 1448 } 1449 keepScreenOnAwhile(); 1450 1451 if (mPreviewing) { 1452 mOnResumeTime = SystemClock.uptimeMillis(); 1453 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 1454 } 1455 } 1456 1457 @Override 1458 public void onConfigurationChanged(Configuration config) { 1459 super.onConfigurationChanged(config); 1460 changeHeadUpDisplayState(); 1461 } 1462 1463 @Override 1464 protected void onPause() { 1465 mPausing = true; 1466 stopPreview(); 1467 // Close the camera now because other activities may need to use it. 1468 closeCamera(); 1469 resetScreenOn(); 1470 collapseCameraControls(); 1471 changeHeadUpDisplayState(); 1472 1473 if (mFirstTimeInitialized) { 1474 mOrientationListener.disable(); 1475 if (!mIsImageCaptureIntent) { 1476 if (mThumbnailButton != null) { 1477 mThumbnailButton.storeData(LAST_THUMB_PATH); 1478 } 1479 } 1480 hidePostCaptureAlert(); 1481 } 1482 1483 if (mDidRegister) { 1484 unregisterReceiver(mReceiver); 1485 mDidRegister = false; 1486 } 1487 stopReceivingLocationUpdates(); 1488 1489 if (mFocusToneGenerator != null) { 1490 mFocusToneGenerator.release(); 1491 mFocusToneGenerator = null; 1492 } 1493 1494 if (mStorageHint != null) { 1495 mStorageHint.cancel(); 1496 mStorageHint = null; 1497 } 1498 1499 // If we are in an image capture intent and has taken 1500 // a picture, we just clear it in onPause. 1501 mJpegImageData = null; 1502 1503 // Remove the messages in the event queue. 1504 mHandler.removeMessages(RESTART_PREVIEW); 1505 mHandler.removeMessages(FIRST_TIME_INIT); 1506 mHandler.removeMessages(CHECK_DISPLAY_ROTATION); 1507 1508 super.onPause(); 1509 } 1510 1511 @Override 1512 protected void onActivityResult( 1513 int requestCode, int resultCode, Intent data) { 1514 switch (requestCode) { 1515 case CROP_MSG: { 1516 Intent intent = new Intent(); 1517 if (data != null) { 1518 Bundle extras = data.getExtras(); 1519 if (extras != null) { 1520 intent.putExtras(extras); 1521 } 1522 } 1523 setResult(resultCode, intent); 1524 finish(); 1525 1526 File path = getFileStreamPath(sTempCropFilename); 1527 path.delete(); 1528 1529 break; 1530 } 1531 } 1532 } 1533 1534 private boolean canTakePicture() { 1535 return isCameraIdle() && mPreviewing && (mPicturesRemaining > 0); 1536 } 1537 1538 private void autoFocus() { 1539 // Initiate autofocus only when preview is started and snapshot is not 1540 // in progress. 1541 if (canTakePicture()) { 1542 enableCameraControls(false); 1543 Log.v(TAG, "Start autofocus."); 1544 mFocusStartTime = System.currentTimeMillis(); 1545 mFocusState = FOCUSING; 1546 updateFocusIndicator(); 1547 mCameraDevice.autoFocus(mAutoFocusCallback); 1548 } 1549 } 1550 1551 private void cancelAutoFocus() { 1552 // User releases half-pressed focus key. 1553 if (mStatus != SNAPSHOT_IN_PROGRESS && (mFocusState == FOCUSING 1554 || mFocusState == FOCUS_SUCCESS || mFocusState == FOCUS_FAIL)) { 1555 Log.v(TAG, "Cancel autofocus."); 1556 enableCameraControls(true); 1557 mCameraDevice.cancelAutoFocus(); 1558 } 1559 if (mFocusState != FOCUSING_SNAP_ON_FINISH) { 1560 clearFocusState(); 1561 } 1562 } 1563 1564 private void clearFocusState() { 1565 mFocusState = FOCUS_NOT_STARTED; 1566 updateFocusIndicator(); 1567 } 1568 1569 private void updateFocusIndicator() { 1570 if (mFocusRectangle == null) return; 1571 1572 if (mFocusState == FOCUSING || mFocusState == FOCUSING_SNAP_ON_FINISH) { 1573 mFocusRectangle.showStart(); 1574 } else if (mFocusState == FOCUS_SUCCESS) { 1575 mFocusRectangle.showSuccess(); 1576 } else if (mFocusState == FOCUS_FAIL) { 1577 mFocusRectangle.showFail(); 1578 } else { 1579 mFocusRectangle.clear(); 1580 } 1581 } 1582 1583 @Override 1584 public void onBackPressed() { 1585 if (!isCameraIdle()) { 1586 // ignore backs while we're taking a picture 1587 return; 1588 } else if (!collapseCameraControls()) { 1589 super.onBackPressed(); 1590 } 1591 } 1592 1593 @Override 1594 public boolean onKeyDown(int keyCode, KeyEvent event) { 1595 switch (keyCode) { 1596 case KeyEvent.KEYCODE_FOCUS: 1597 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1598 doFocus(true); 1599 } 1600 return true; 1601 case KeyEvent.KEYCODE_CAMERA: 1602 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1603 doSnap(); 1604 } 1605 return true; 1606 case KeyEvent.KEYCODE_DPAD_CENTER: 1607 // If we get a dpad center event without any focused view, move 1608 // the focus to the shutter button and press it. 1609 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1610 // Start auto-focus immediately to reduce shutter lag. After 1611 // the shutter button gets the focus, doFocus() will be 1612 // called again but it is fine. 1613 if (collapseCameraControls()) return true; 1614 doFocus(true); 1615 if (mShutterButton.isInTouchMode()) { 1616 mShutterButton.requestFocusFromTouch(); 1617 } else { 1618 mShutterButton.requestFocus(); 1619 } 1620 mShutterButton.setPressed(true); 1621 } 1622 return true; 1623 } 1624 1625 return super.onKeyDown(keyCode, event); 1626 } 1627 1628 @Override 1629 public boolean onKeyUp(int keyCode, KeyEvent event) { 1630 switch (keyCode) { 1631 case KeyEvent.KEYCODE_FOCUS: 1632 if (mFirstTimeInitialized) { 1633 doFocus(false); 1634 } 1635 return true; 1636 } 1637 return super.onKeyUp(keyCode, event); 1638 } 1639 1640 private void doSnap() { 1641 if (collapseCameraControls()) return; 1642 1643 Log.v(TAG, "doSnap: mFocusState=" + mFocusState); 1644 // If the user has half-pressed the shutter and focus is completed, we 1645 // can take the photo right away. If the focus mode is infinity, we can 1646 // also take the photo. 1647 if (mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1648 || mFocusMode.equals(Parameters.FOCUS_MODE_FIXED) 1649 || mFocusMode.equals(Parameters.FOCUS_MODE_EDOF) 1650 || (mFocusState == FOCUS_SUCCESS 1651 || mFocusState == FOCUS_FAIL)) { 1652 capture(); 1653 } else if (mFocusState == FOCUSING) { 1654 // Half pressing the shutter (i.e. the focus button event) will 1655 // already have requested AF for us, so just request capture on 1656 // focus here. 1657 mFocusState = FOCUSING_SNAP_ON_FINISH; 1658 } else if (mFocusState == FOCUS_NOT_STARTED) { 1659 // Focus key down event is dropped for some reasons. Just ignore. 1660 } 1661 } 1662 1663 private void doFocus(boolean pressed) { 1664 // Do the focus if the mode is not infinity. 1665 if (collapseCameraControls()) return; 1666 if (!(mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1667 || mFocusMode.equals(Parameters.FOCUS_MODE_FIXED) 1668 || mFocusMode.equals(Parameters.FOCUS_MODE_EDOF))) { 1669 if (pressed) { // Focus key down. 1670 autoFocus(); 1671 } else { // Focus key up. 1672 cancelAutoFocus(); 1673 } 1674 } 1675 } 1676 1677 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1678 // Make sure we have a surface in the holder before proceeding. 1679 if (holder.getSurface() == null) { 1680 Log.d(TAG, "holder.getSurface() == null"); 1681 return; 1682 } 1683 1684 Log.v(TAG, "surfaceChanged. w=" + w + ". h=" + h); 1685 1686 // We need to save the holder for later use, even when the mCameraDevice 1687 // is null. This could happen if onResume() is invoked after this 1688 // function. 1689 mSurfaceHolder = holder; 1690 1691 // The mCameraDevice will be null if it fails to connect to the camera 1692 // hardware. In this case we will show a dialog and then finish the 1693 // activity, so it's OK to ignore it. 1694 if (mCameraDevice == null) return; 1695 1696 // Sometimes surfaceChanged is called after onPause or before onResume. 1697 // Ignore it. 1698 if (mPausing || isFinishing()) return; 1699 1700 // Set preview display if the surface is being created. Preview was 1701 // already started. Also restart the preview if display rotation has 1702 // changed. Sometimes this happens when the device is held in portrait 1703 // and camera app is opened. Rotation animation takes some time and 1704 // display rotation in onCreate may not be what we want. 1705 if (mPreviewing && (Util.getDisplayRotation(this) == mDisplayRotation) 1706 && holder.isCreating()) { 1707 // Set preview display if the surface is being created and preview 1708 // was already started. That means preview display was set to null 1709 // and we need to set it now. 1710 setPreviewDisplay(holder); 1711 } else { 1712 // 1. Restart the preview if the size of surface was changed. The 1713 // framework may not support changing preview display on the fly. 1714 // 2. Start the preview now if surface was destroyed and preview 1715 // stopped. 1716 restartPreview(); 1717 } 1718 1719 // If first time initialization is not finished, send a message to do 1720 // it later. We want to finish surfaceChanged as soon as possible to let 1721 // user see preview first. 1722 if (!mFirstTimeInitialized) { 1723 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1724 } else { 1725 initializeSecondTime(); 1726 } 1727 } 1728 1729 public void surfaceCreated(SurfaceHolder holder) { 1730 } 1731 1732 public void surfaceDestroyed(SurfaceHolder holder) { 1733 stopPreview(); 1734 mSurfaceHolder = null; 1735 } 1736 1737 private void closeCamera() { 1738 if (mCameraDevice != null) { 1739 CameraHolder.instance().release(); 1740 mCameraDevice.setZoomChangeListener(null); 1741 mCameraDevice = null; 1742 mPreviewing = false; 1743 } 1744 } 1745 1746 private void ensureCameraDevice() throws CameraHardwareException { 1747 if (mCameraDevice == null) { 1748 mCameraDevice = CameraHolder.instance().open(mCameraId); 1749 mInitialParams = mCameraDevice.getParameters(); 1750 } 1751 } 1752 1753 private void showCameraErrorAndFinish() { 1754 Resources ress = getResources(); 1755 Util.showFatalErrorAndFinish(Camera.this, 1756 ress.getString(R.string.camera_error_title), 1757 ress.getString(R.string.cannot_connect_camera)); 1758 } 1759 1760 private boolean restartPreview() { 1761 try { 1762 startPreview(); 1763 } catch (CameraHardwareException e) { 1764 showCameraErrorAndFinish(); 1765 return false; 1766 } 1767 return true; 1768 } 1769 1770 private void setPreviewDisplay(SurfaceHolder holder) { 1771 try { 1772 mCameraDevice.setPreviewDisplay(holder); 1773 } catch (Throwable ex) { 1774 closeCamera(); 1775 throw new RuntimeException("setPreviewDisplay failed", ex); 1776 } 1777 } 1778 1779 private void startPreview() throws CameraHardwareException { 1780 if (mPausing || isFinishing()) return; 1781 1782 ensureCameraDevice(); 1783 mCameraDevice.setErrorCallback(mErrorCallback); 1784 1785 // If we're previewing already, stop the preview first (this will blank 1786 // the screen). 1787 if (mPreviewing) stopPreview(); 1788 1789 setPreviewDisplay(mSurfaceHolder); 1790 mDisplayRotation = Util.getDisplayRotation(this); 1791 Util.setCameraDisplayOrientation(mDisplayRotation, mCameraId, mCameraDevice); 1792 setCameraParameters(UPDATE_PARAM_ALL); 1793 1794 1795 try { 1796 Log.v(TAG, "startPreview"); 1797 mCameraDevice.startPreview(); 1798 } catch (Throwable ex) { 1799 closeCamera(); 1800 throw new RuntimeException("startPreview failed", ex); 1801 } 1802 mPreviewing = true; 1803 mZoomState = ZOOM_STOPPED; 1804 mStatus = IDLE; 1805 } 1806 1807 private void stopPreview() { 1808 if (mCameraDevice != null && mPreviewing) { 1809 Log.v(TAG, "stopPreview"); 1810 mCameraDevice.stopPreview(); 1811 } 1812 mPreviewing = false; 1813 // If auto focus was in progress, it would have been canceled. 1814 clearFocusState(); 1815 } 1816 1817 private static boolean isSupported(String value, List<String> supported) { 1818 return supported == null ? false : supported.indexOf(value) >= 0; 1819 } 1820 1821 private void updateCameraParametersInitialize() { 1822 // Reset preview frame rate to the maximum because it may be lowered by 1823 // video camera application. 1824 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1825 if (frameRates != null) { 1826 Integer max = Collections.max(frameRates); 1827 mParameters.setPreviewFrameRate(max); 1828 } 1829 1830 } 1831 1832 private void updateCameraParametersZoom() { 1833 // Set zoom. 1834 if (mParameters.isZoomSupported()) { 1835 mParameters.setZoom(mZoomValue); 1836 } 1837 } 1838 1839 private void updateCameraParametersPreference() { 1840 // Set picture size. 1841 String pictureSize = mPreferences.getString( 1842 CameraSettings.KEY_PICTURE_SIZE, null); 1843 if (pictureSize == null) { 1844 CameraSettings.initialCameraPictureSize(this, mParameters); 1845 } else { 1846 List<Size> supported = mParameters.getSupportedPictureSizes(); 1847 CameraSettings.setCameraPictureSize( 1848 pictureSize, supported, mParameters); 1849 } 1850 1851 // Set the preview frame aspect ratio according to the picture size. 1852 Size size = mParameters.getPictureSize(); 1853 PreviewFrameLayout frameLayout = 1854 (PreviewFrameLayout) findViewById(R.id.frame_layout); 1855 frameLayout.setAspectRatio((double) size.width / size.height); 1856 1857 // Set a preview size that is closest to the viewfinder height and has 1858 // the right aspect ratio. 1859 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1860 Size optimalSize = Util.getOptimalPreviewSize(this, 1861 sizes, (double) size.width / size.height); 1862 Size original = mParameters.getPreviewSize(); 1863 if (!original.equals(optimalSize)) { 1864 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1865 1866 // Zoom related settings will be changed for different preview 1867 // sizes, so set and read the parameters to get lastest values 1868 mCameraDevice.setParameters(mParameters); 1869 mParameters = mCameraDevice.getParameters(); 1870 } 1871 Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height); 1872 1873 // Since change scene mode may change supported values, 1874 // Set scene mode first, 1875 mSceneMode = mPreferences.getString( 1876 CameraSettings.KEY_SCENE_MODE, 1877 getString(R.string.pref_camera_scenemode_default)); 1878 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 1879 if (!mParameters.getSceneMode().equals(mSceneMode)) { 1880 mParameters.setSceneMode(mSceneMode); 1881 mCameraDevice.setParameters(mParameters); 1882 1883 // Setting scene mode will change the settings of flash mode, 1884 // white balance, and focus mode. Here we read back the 1885 // parameters, so we can know those settings. 1886 mParameters = mCameraDevice.getParameters(); 1887 } 1888 } else { 1889 mSceneMode = mParameters.getSceneMode(); 1890 if (mSceneMode == null) { 1891 mSceneMode = Parameters.SCENE_MODE_AUTO; 1892 } 1893 } 1894 1895 // Set JPEG quality. 1896 String jpegQuality = mPreferences.getString( 1897 CameraSettings.KEY_JPEG_QUALITY, 1898 getString(R.string.pref_camera_jpegquality_default)); 1899 mParameters.setJpegQuality(JpegEncodingQualityMappings.getQualityNumber(jpegQuality)); 1900 1901 // For the following settings, we need to check if the settings are 1902 // still supported by latest driver, if not, ignore the settings. 1903 1904 // Set color effect parameter. 1905 String colorEffect = mPreferences.getString( 1906 CameraSettings.KEY_COLOR_EFFECT, 1907 getString(R.string.pref_camera_coloreffect_default)); 1908 if (isSupported(colorEffect, mParameters.getSupportedColorEffects())) { 1909 mParameters.setColorEffect(colorEffect); 1910 } 1911 1912 // Set exposure compensation 1913 String exposure = mPreferences.getString( 1914 CameraSettings.KEY_EXPOSURE, 1915 getString(R.string.pref_exposure_default)); 1916 try { 1917 int value = Integer.parseInt(exposure); 1918 int max = mParameters.getMaxExposureCompensation(); 1919 int min = mParameters.getMinExposureCompensation(); 1920 if (value >= min && value <= max) { 1921 mParameters.setExposureCompensation(value); 1922 } else { 1923 Log.w(TAG, "invalid exposure range: " + exposure); 1924 } 1925 } catch (NumberFormatException e) { 1926 Log.w(TAG, "invalid exposure: " + exposure); 1927 } 1928 1929 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1930 // Set flash mode. 1931 String flashMode = mPreferences.getString( 1932 CameraSettings.KEY_FLASH_MODE, 1933 getString(R.string.pref_camera_flashmode_default)); 1934 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 1935 if (isSupported(flashMode, supportedFlash)) { 1936 mParameters.setFlashMode(flashMode); 1937 } else { 1938 flashMode = mParameters.getFlashMode(); 1939 if (flashMode == null) { 1940 flashMode = getString( 1941 R.string.pref_camera_flashmode_no_flash); 1942 } 1943 } 1944 1945 // Set white balance parameter. 1946 String whiteBalance = mPreferences.getString( 1947 CameraSettings.KEY_WHITE_BALANCE, 1948 getString(R.string.pref_camera_whitebalance_default)); 1949 if (isSupported(whiteBalance, 1950 mParameters.getSupportedWhiteBalance())) { 1951 mParameters.setWhiteBalance(whiteBalance); 1952 } else { 1953 whiteBalance = mParameters.getWhiteBalance(); 1954 if (whiteBalance == null) { 1955 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 1956 } 1957 } 1958 1959 // Set focus mode. 1960 mFocusMode = mPreferences.getString( 1961 CameraSettings.KEY_FOCUS_MODE, 1962 getString(R.string.pref_camera_focusmode_default)); 1963 if (isSupported(mFocusMode, mParameters.getSupportedFocusModes())) { 1964 mParameters.setFocusMode(mFocusMode); 1965 } else { 1966 mFocusMode = mParameters.getFocusMode(); 1967 if (mFocusMode == null) { 1968 mFocusMode = Parameters.FOCUS_MODE_AUTO; 1969 } 1970 } 1971 } else { 1972 mFocusMode = mParameters.getFocusMode(); 1973 } 1974 } 1975 1976 // We separate the parameters into several subsets, so we can update only 1977 // the subsets actually need updating. The PREFERENCE set needs extra 1978 // locking because the preference can be changed from GLThread as well. 1979 private void setCameraParameters(int updateSet) { 1980 mParameters = mCameraDevice.getParameters(); 1981 1982 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 1983 updateCameraParametersInitialize(); 1984 } 1985 1986 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 1987 updateCameraParametersZoom(); 1988 } 1989 1990 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 1991 updateCameraParametersPreference(); 1992 } 1993 1994 mCameraDevice.setParameters(mParameters); 1995 } 1996 1997 // If the Camera is idle, update the parameters immediately, otherwise 1998 // accumulate them in mUpdateSet and update later. 1999 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 2000 mUpdateSet |= additionalUpdateSet; 2001 if (mCameraDevice == null) { 2002 // We will update all the parameters when we open the device, so 2003 // we don't need to do anything now. 2004 mUpdateSet = 0; 2005 return; 2006 } else if (isCameraIdle()) { 2007 setCameraParameters(mUpdateSet); 2008 updateSceneModeUI(); 2009 mUpdateSet = 0; 2010 } else { 2011 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 2012 mHandler.sendEmptyMessageDelayed( 2013 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 2014 } 2015 } 2016 } 2017 2018 private void gotoGallery() { 2019 MenuHelper.gotoCameraImageGallery(this); 2020 } 2021 2022 private void viewImage(RotateImageView view) { 2023 if(!view.isUriValid()) { 2024 Log.e(TAG, "Uri invalid. uri=" + view.getUri()); 2025 return; 2026 } 2027 2028 try { 2029 startActivity(new Intent( 2030 Util.REVIEW_ACTION, view.getUri())); 2031 } catch (ActivityNotFoundException ex) { 2032 try { 2033 startActivity(new Intent( 2034 Intent.ACTION_VIEW, view.getUri())); 2035 } catch (ActivityNotFoundException e) { 2036 Log.e(TAG, "review image fail. uri=" + view.getUri(), e); 2037 } 2038 } 2039 } 2040 2041 private void startReceivingLocationUpdates() { 2042 if (mLocationManager != null) { 2043 try { 2044 mLocationManager.requestLocationUpdates( 2045 LocationManager.NETWORK_PROVIDER, 2046 1000, 2047 0F, 2048 mLocationListeners[1]); 2049 } catch (java.lang.SecurityException ex) { 2050 Log.i(TAG, "fail to request location update, ignore", ex); 2051 } catch (IllegalArgumentException ex) { 2052 Log.d(TAG, "provider does not exist " + ex.getMessage()); 2053 } 2054 try { 2055 mLocationManager.requestLocationUpdates( 2056 LocationManager.GPS_PROVIDER, 2057 1000, 2058 0F, 2059 mLocationListeners[0]); 2060 showGpsOnScreenIndicator(false); 2061 } catch (java.lang.SecurityException ex) { 2062 Log.i(TAG, "fail to request location update, ignore", ex); 2063 } catch (IllegalArgumentException ex) { 2064 Log.d(TAG, "provider does not exist " + ex.getMessage()); 2065 } 2066 Log.d(TAG, "startReceivingLocationUpdates"); 2067 } 2068 } 2069 2070 private void stopReceivingLocationUpdates() { 2071 if (mLocationManager != null) { 2072 for (int i = 0; i < mLocationListeners.length; i++) { 2073 try { 2074 mLocationManager.removeUpdates(mLocationListeners[i]); 2075 } catch (Exception ex) { 2076 Log.i(TAG, "fail to remove location listners, ignore", ex); 2077 } 2078 } 2079 Log.d(TAG, "stopReceivingLocationUpdates"); 2080 } 2081 hideGpsOnScreenIndicator(); 2082 } 2083 2084 private Location getCurrentLocation() { 2085 // go in best to worst order 2086 for (int i = 0; i < mLocationListeners.length; i++) { 2087 Location l = mLocationListeners[i].current(); 2088 if (l != null) return l; 2089 } 2090 Log.d(TAG, "No location received yet."); 2091 return null; 2092 } 2093 2094 private boolean isCameraIdle() { 2095 return mStatus == IDLE && mFocusState == FOCUS_NOT_STARTED; 2096 } 2097 2098 private boolean isImageCaptureIntent() { 2099 String action = getIntent().getAction(); 2100 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 2101 } 2102 2103 private void setupCaptureParams() { 2104 Bundle myExtras = getIntent().getExtras(); 2105 if (myExtras != null) { 2106 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 2107 mCropValue = myExtras.getString("crop"); 2108 } 2109 } 2110 2111 private void showPostCaptureAlert() { 2112 if (mIsImageCaptureIntent) { 2113 if (mIndicatorWheel == null) { 2114 mShutterButton.setVisibility(View.INVISIBLE); 2115 } else { 2116 mShutterButton.setEnabled(false); 2117 } 2118 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2119 for (int id : pickIds) { 2120 View button = findViewById(id); 2121 ((View) button.getParent()).setVisibility(View.VISIBLE); 2122 } 2123 2124 // Remove the text of the cancel button 2125 View view = findViewById(R.id.btn_cancel); 2126 if (view instanceof Button) ((Button) view).setText(""); 2127 } 2128 } 2129 2130 private void hidePostCaptureAlert() { 2131 if (mIsImageCaptureIntent) { 2132 if (mIndicatorWheel == null) { 2133 mShutterButton.setVisibility(View.VISIBLE); 2134 } else { 2135 mShutterButton.setEnabled(true); 2136 } 2137 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2138 for (int id : pickIds) { 2139 View button = findViewById(id); 2140 ((View) button.getParent()).setVisibility(View.GONE); 2141 } 2142 enableCameraControls(true); 2143 2144 // Restore the text of the cancel button 2145 View view = findViewById(R.id.btn_cancel); 2146 if (view instanceof Button) { 2147 ((Button) view).setText(R.string.review_cancel); 2148 } 2149 } 2150 } 2151 2152 @Override 2153 public boolean onPrepareOptionsMenu(Menu menu) { 2154 super.onPrepareOptionsMenu(menu); 2155 // Only show the menu when camera is idle. 2156 for (int i = 0; i < menu.size(); i++) { 2157 menu.getItem(i).setVisible(isCameraIdle()); 2158 } 2159 2160 return true; 2161 } 2162 2163 @Override 2164 public boolean onCreateOptionsMenu(Menu menu) { 2165 super.onCreateOptionsMenu(menu); 2166 2167 if (mIsImageCaptureIntent) { 2168 // No options menu for attach mode. 2169 return false; 2170 } else { 2171 addBaseMenuItems(menu); 2172 } 2173 return true; 2174 } 2175 2176 private void addBaseMenuItems(Menu menu) { 2177 MenuHelper.addSwitchModeMenuItem(menu, true, new Runnable() { 2178 public void run() { 2179 switchToVideoMode(); 2180 } 2181 }); 2182 MenuItem gallery = menu.add(Menu.NONE, Menu.NONE, 2183 MenuHelper.POSITION_GOTO_GALLERY, 2184 R.string.camera_gallery_photos_text) 2185 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2186 public boolean onMenuItemClick(MenuItem item) { 2187 gotoGallery(); 2188 return true; 2189 } 2190 }); 2191 gallery.setIcon(android.R.drawable.ic_menu_gallery); 2192 mGalleryItems.add(gallery); 2193 2194 if (mNumberOfCameras > 1) { 2195 menu.add(Menu.NONE, Menu.NONE, 2196 MenuHelper.POSITION_SWITCH_CAMERA_ID, 2197 R.string.switch_camera_id) 2198 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2199 public boolean onMenuItemClick(MenuItem item) { 2200 CameraSettings.writePreferredCameraId(mPreferences, 2201 ((mCameraId == mFrontCameraId) 2202 ? mBackCameraId : mFrontCameraId)); 2203 onSharedPreferenceChanged(); 2204 return true; 2205 } 2206 }).setIcon(android.R.drawable.ic_menu_camera); 2207 } 2208 } 2209 2210 private void switchCameraId(int cameraId) { 2211 if (mPausing || !isCameraIdle()) return; 2212 mCameraId = cameraId; 2213 2214 stopPreview(); 2215 closeCamera(); 2216 2217 // Remove the messages in the event queue. 2218 mHandler.removeMessages(RESTART_PREVIEW); 2219 2220 // Reset variables 2221 mJpegPictureCallbackTime = 0; 2222 mZoomValue = 0; 2223 2224 // Reload the preferences. 2225 mPreferences.setLocalId(this, mCameraId); 2226 CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); 2227 2228 // Restart the preview. 2229 resetExposureCompensation(); 2230 if (!restartPreview()) return; 2231 2232 initializeZoom(); 2233 2234 // Reload the UI. 2235 initializeHeadUpDisplay(); 2236 initializeIndicatorWheel(); 2237 } 2238 2239 private boolean switchToVideoMode() { 2240 if (isFinishing() || !isCameraIdle()) return false; 2241 MenuHelper.gotoVideoMode(Camera.this); 2242 mHandler.removeMessages(FIRST_TIME_INIT); 2243 finish(); 2244 return true; 2245 } 2246 2247 public boolean onSwitchChanged(Switcher source, boolean onOff) { 2248 if (onOff == SWITCH_VIDEO) { 2249 return switchToVideoMode(); 2250 } else { 2251 return true; 2252 } 2253 } 2254 2255 private void onSharedPreferenceChanged() { 2256 // ignore the events after "onPause()" 2257 if (mPausing) return; 2258 2259 boolean recordLocation; 2260 2261 recordLocation = RecordLocationPreference.get( 2262 mPreferences, getContentResolver()); 2263 2264 if (mRecordLocation != recordLocation) { 2265 mRecordLocation = recordLocation; 2266 if (mRecordLocation) { 2267 startReceivingLocationUpdates(); 2268 } else { 2269 stopReceivingLocationUpdates(); 2270 } 2271 } 2272 int cameraId = CameraSettings.readPreferredCameraId(mPreferences); 2273 if (mCameraId != cameraId) { 2274 switchCameraId(cameraId); 2275 } else { 2276 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 2277 } 2278 } 2279 2280 @Override 2281 public void onUserInteraction() { 2282 super.onUserInteraction(); 2283 keepScreenOnAwhile(); 2284 } 2285 2286 private void resetScreenOn() { 2287 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2288 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2289 } 2290 2291 private void keepScreenOnAwhile() { 2292 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2293 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2294 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2295 } 2296 2297 private class MyHeadUpDisplayListener implements HeadUpDisplay.Listener { 2298 2299 public void onSharedPreferenceChanged() { 2300 Camera.this.onSharedPreferenceChanged(); 2301 } 2302 2303 public void onRestorePreferencesClicked() { 2304 Camera.this.onRestorePreferencesClicked(); 2305 } 2306 2307 public void onPopupWindowVisibilityChanged(int visibility) { 2308 } 2309 } 2310 2311 protected void onRestorePreferencesClicked() { 2312 if (mPausing) return; 2313 Runnable runnable = new Runnable() { 2314 public void run() { 2315 restorePreferences(); 2316 } 2317 }; 2318 MenuHelper.confirmAction(this, 2319 getString(R.string.confirm_restore_title), 2320 getString(R.string.confirm_restore_message), 2321 runnable); 2322 } 2323 2324 private void restorePreferences() { 2325 // Reset the zoom. Zoom value is not stored in preference. 2326 if (mParameters.isZoomSupported()) { 2327 mZoomValue = 0; 2328 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 2329 if (mZoomPicker != null) mZoomPicker.setZoomIndex(0); 2330 } 2331 2332 if (mHeadUpDisplay != null) { 2333 mHeadUpDisplay.restorePreferences(mParameters); 2334 } 2335 2336 if (mIndicatorWheel != null) { 2337 mIndicatorWheel.dismissSettingPopup(); 2338 CameraSettings.restorePreferences(Camera.this, mPreferences, 2339 mParameters); 2340 initializeIndicatorWheel(); 2341 onSharedPreferenceChanged(); 2342 } 2343 } 2344 2345 protected void onOverriddenPreferencesClicked() { 2346 if (mPausing) return; 2347 if (mNotSelectableToast == null) { 2348 String str = getResources().getString(R.string.not_selectable_in_scene_mode); 2349 mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT); 2350 } 2351 mNotSelectableToast.cancel(); 2352 mNotSelectableToast.show(); 2353 } 2354 2355 private class MyIndicatorWheelListener implements IndicatorWheel.Listener { 2356 public void onSharedPreferenceChanged() { 2357 Camera.this.onSharedPreferenceChanged(); 2358 } 2359 2360 public void onRestorePreferencesClicked() { 2361 Camera.this.onRestorePreferencesClicked(); 2362 } 2363 2364 public void onOverriddenPreferencesClicked() { 2365 Camera.this.onOverriddenPreferencesClicked(); 2366 } 2367 } 2368 2369 private class MyCameraPickerListener implements CameraPicker.Listener { 2370 public void onSharedPreferenceChanged() { 2371 Camera.this.onSharedPreferenceChanged(); 2372 } 2373 } 2374} 2375