Camera.java revision 3f63a2d895c50ae1c3a7a47ee6ead070b5bbd7fc
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.RotateImageView; 26import com.android.camera.ui.ZoomControllerListener; 27import com.android.camera.ui.ZoomPicker; 28 29import android.app.Activity; 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.graphics.Bitmap; 39import android.graphics.Rect; 40import android.hardware.Camera.Area; 41import android.hardware.Camera.CameraInfo; 42import android.hardware.Camera.Parameters; 43import android.hardware.Camera.PictureCallback; 44import android.hardware.Camera.Size; 45import android.location.Location; 46import android.location.LocationManager; 47import android.location.LocationProvider; 48import android.media.AudioManager; 49import android.media.ToneGenerator; 50import android.net.Uri; 51import android.os.Build; 52import android.os.Bundle; 53import android.os.Handler; 54import android.os.Looper; 55import android.os.Message; 56import android.os.MessageQueue; 57import android.os.SystemClock; 58import android.provider.MediaStore; 59import android.provider.Settings; 60import android.util.Log; 61import android.view.GestureDetector; 62import android.view.KeyEvent; 63import android.view.Menu; 64import android.view.MenuItem; 65import android.view.MenuItem.OnMenuItemClickListener; 66import android.view.MotionEvent; 67import android.view.OrientationEventListener; 68import android.view.SurfaceHolder; 69import android.view.SurfaceView; 70import android.view.View; 71import android.view.ViewGroup; 72import android.view.Window; 73import android.view.WindowManager; 74import android.widget.Button; 75import android.widget.ImageView; 76import android.widget.RelativeLayout; 77import android.widget.Toast; 78 79import java.io.File; 80import java.io.FileNotFoundException; 81import java.io.FileOutputStream; 82import java.io.IOException; 83import java.io.OutputStream; 84import java.text.SimpleDateFormat; 85import java.util.ArrayList; 86import java.util.Collections; 87import java.util.Date; 88import java.util.List; 89 90/** The Camera activity which can preview and take pictures. */ 91public class Camera extends ActivityBase implements View.OnClickListener, 92 View.OnTouchListener, ShutterButton.OnShutterButtonListener, 93 SurfaceHolder.Callback, Switcher.OnSwitchListener { 94 95 private static final String TAG = "camera"; 96 97 private static final String LAST_THUMB_FILENAME = "image_last_thumb"; 98 99 private static final int CROP_MSG = 1; 100 private static final int FIRST_TIME_INIT = 2; 101 private static final int RESTART_PREVIEW = 3; 102 private static final int CLEAR_SCREEN_DELAY = 4; 103 private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 5; 104 private static final int CHECK_DISPLAY_ROTATION = 6; 105 private static final int RESET_TOUCH_FOCUS = 7; 106 107 // The subset of parameters we need to update in setCameraParameters(). 108 private static final int UPDATE_PARAM_INITIALIZE = 1; 109 private static final int UPDATE_PARAM_ZOOM = 2; 110 private static final int UPDATE_PARAM_PREFERENCE = 4; 111 private static final int UPDATE_PARAM_ALL = -1; 112 113 // When setCameraParametersWhenIdle() is called, we accumulate the subsets 114 // needed to be updated in mUpdateSet. 115 private int mUpdateSet; 116 117 // The brightness settings used when it is set to automatic in the system. 118 // The reason why it is set to 0.7 is just because 1.0 is too bright. 119 private static final float DEFAULT_CAMERA_BRIGHTNESS = 0.7f; 120 121 private static final int SCREEN_DELAY = 2 * 60 * 1000; 122 private static final int FOCUS_BEEP_VOLUME = 100; 123 124 private static final int ZOOM_STOPPED = 0; 125 private static final int ZOOM_START = 1; 126 private static final int ZOOM_STOPPING = 2; 127 128 private int mZoomState = ZOOM_STOPPED; 129 private boolean mSmoothZoomSupported = false; 130 private int mZoomValue; // The current zoom value. 131 private int mZoomMax; 132 private int mTargetZoomValue; 133 private ZoomPicker mZoomPicker; 134 135 private Parameters mParameters; 136 private Parameters mInitialParams; 137 138 private MyOrientationEventListener mOrientationListener; 139 // The device orientation in degrees. Default is unknown. 140 private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 141 // The orientation compensation for icons and thumbnails. 142 private int mOrientationCompensation = 0; 143 private ComboPreferences mPreferences; 144 145 private static final boolean SWITCH_CAMERA = true; 146 private static final boolean SWITCH_VIDEO = false; 147 148 private static final String sTempCropFilename = "crop-temp"; 149 150 private android.hardware.Camera mCameraDevice; 151 private ContentProviderClient mMediaProviderClient; 152 private SurfaceHolder mSurfaceHolder = null; 153 private ShutterButton mShutterButton; 154 private ToneGenerator mFocusToneGenerator; 155 private GestureDetector mPopupGestureDetector; 156 private SwitcherSet mSwitcher; 157 private boolean mOpenCameraFail = false; 158 private boolean mCameraDisabled = false; 159 160 private View mPreviewFrame; // Preview frame area. 161 private View mPreviewBorder; 162 private FocusRectangle mFocusRectangle; 163 private List<Area> mFocusArea; // focus area in driver format 164 private static final int RESET_TOUCH_FOCUS_DELAY = 3000; 165 166 private GLRootView mGLRootView; 167 168 // A button showing the last captured picture thumbnail. Clicking on it 169 // goes to gallery. 170 private RotateImageView mThumbnailButton; 171 // The bitmap of the last captured picture thumbnail and the URI of the 172 // original picture. 173 private Thumbnail mThumbnail; 174 // An review image having same size as preview. It is displayed when 175 // share button is pressed. 176 private ImageView mReviewImage; 177 // A button sharing the last picture. 178 private RotateImageView mShareButton; 179 private RotateImageView mCameraSwitchIcon; 180 private RotateImageView mVideoSwitchIcon; 181 182 // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. 183 private String mCropValue; 184 private Uri mSaveUri; 185 186 // GPS on-screen indicator 187 private View mGpsNoSignalView; 188 private View mGpsHasSignalView; 189 190 // Front/Back camera picker for w1024dp layout 191 private CameraPicker mCameraPicker; 192 193 /** 194 * An unpublished intent flag requesting to return as soon as capturing 195 * is completed. 196 * 197 * TODO: consider publishing by moving into MediaStore. 198 */ 199 private final static String EXTRA_QUICK_CAPTURE = 200 "android.intent.extra.quickCapture"; 201 202 // The display rotation in degrees. This is only valid when mCameraState is 203 // not PREVIEW_STOPPED. 204 private int mDisplayRotation; 205 private boolean mPausing; 206 private boolean mFirstTimeInitialized; 207 private boolean mIsImageCaptureIntent; 208 private boolean mRecordLocation; 209 210 private static final int PREVIEW_STOPPED = 0; 211 private static final int IDLE = 1; // preview is active 212 private static final int FOCUSING = 2; 213 private static final int FOCUSING_SNAP_ON_FINISH = 3; 214 private static final int FOCUS_SUCCESS = 4; 215 private static final int FOCUS_FAIL = 5; 216 private static final int SNAPSHOT_IN_PROGRESS = 6; 217 private int mCameraState = PREVIEW_STOPPED; 218 219 private ContentResolver mContentResolver; 220 private boolean mDidRegister = false; 221 222 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 223 224 private LocationManager mLocationManager = null; 225 226 private final ShutterCallback mShutterCallback = new ShutterCallback(); 227 private final PostViewPictureCallback mPostViewPictureCallback = 228 new PostViewPictureCallback(); 229 private final RawPictureCallback mRawPictureCallback = 230 new RawPictureCallback(); 231 private final AutoFocusCallback mAutoFocusCallback = 232 new AutoFocusCallback(); 233 private final ZoomListener mZoomListener = new ZoomListener(); 234 private final CameraErrorCallback mErrorCallback = new CameraErrorCallback(); 235 236 private long mFocusStartTime; 237 private long mFocusCallbackTime; 238 private long mCaptureStartTime; 239 private long mShutterCallbackTime; 240 private long mPostViewPictureCallbackTime; 241 private long mRawPictureCallbackTime; 242 private long mJpegPictureCallbackTime; 243 private long mOnResumeTime; 244 private long mPicturesRemaining; 245 private byte[] mJpegImageData; 246 247 // These latency time are for the CameraLatency test. 248 public long mAutoFocusTime; 249 public long mShutterLag; 250 public long mShutterToPictureDisplayedTime; 251 public long mPictureDisplayedToJpegCallbackTime; 252 public long mJpegCallbackFinishTime; 253 254 // Focus mode. Options are pref_camera_focusmode_entryvalues. 255 private String mFocusMode; 256 private String mSceneMode; 257 private Toast mNotSelectableToast; 258 private Toast mNoShareToast; 259 260 private final Handler mHandler = new MainHandler(); 261 // w1024dp devices use indicator wheel. Other devices use head-up display. 262 private CameraHeadUpDisplay mHeadUpDisplay; 263 private IndicatorWheel mIndicatorWheel; 264 private PreferenceGroup mPreferenceGroup; 265 266 // multiple cameras support 267 private int mNumberOfCameras; 268 private int mCameraId; 269 private int mFrontCameraId; 270 private int mBackCameraId; 271 272 private boolean mQuickCapture; 273 274 /** 275 * This Handler is used to post message back onto the main thread of the 276 * application 277 */ 278 private class MainHandler extends Handler { 279 @Override 280 public void handleMessage(Message msg) { 281 switch (msg.what) { 282 case RESTART_PREVIEW: { 283 startPreview(); 284 if (mJpegPictureCallbackTime != 0) { 285 long now = System.currentTimeMillis(); 286 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 287 Log.v(TAG, "mJpegCallbackFinishTime = " 288 + mJpegCallbackFinishTime + "ms"); 289 mJpegPictureCallbackTime = 0; 290 } 291 break; 292 } 293 294 case CLEAR_SCREEN_DELAY: { 295 getWindow().clearFlags( 296 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 297 break; 298 } 299 300 case FIRST_TIME_INIT: { 301 initializeFirstTime(); 302 break; 303 } 304 305 case SET_CAMERA_PARAMETERS_WHEN_IDLE: { 306 setCameraParametersWhenIdle(0); 307 break; 308 } 309 310 case CHECK_DISPLAY_ROTATION: { 311 // Restart the preview if display rotation has changed. 312 // Sometimes this happens when the device is held upside 313 // down and camera app is opened. Rotation animation will 314 // take some time and the rotation value we have got may be 315 // wrong. Framework does not have a callback for this now. 316 if (Util.getDisplayRotation(Camera.this) != mDisplayRotation 317 && isCameraIdle()) { 318 startPreview(); 319 } 320 if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) { 321 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 322 } 323 break; 324 } 325 326 case RESET_TOUCH_FOCUS: { 327 cancelAutoFocus(); 328 break; 329 } 330 } 331 } 332 } 333 334 private void resetExposureCompensation() { 335 String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, 336 CameraSettings.EXPOSURE_DEFAULT_VALUE); 337 if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { 338 Editor editor = mPreferences.edit(); 339 editor.putString(CameraSettings.KEY_EXPOSURE, "0"); 340 editor.apply(); 341 if (mHeadUpDisplay != null) { 342 mHeadUpDisplay.reloadPreferences(); 343 } 344 if (mIndicatorWheel != null) { 345 mIndicatorWheel.reloadPreferences(); 346 } 347 } 348 } 349 350 private void keepMediaProviderInstance() { 351 // We want to keep a reference to MediaProvider in camera's lifecycle. 352 // TODO: Utilize mMediaProviderClient instance to replace 353 // ContentResolver calls. 354 if (mMediaProviderClient == null) { 355 mMediaProviderClient = getContentResolver() 356 .acquireContentProviderClient(MediaStore.AUTHORITY); 357 } 358 } 359 360 // Snapshots can only be taken after this is called. It should be called 361 // once only. We could have done these things in onCreate() but we want to 362 // make preview screen appear as soon as possible. 363 private void initializeFirstTime() { 364 if (mFirstTimeInitialized) return; 365 366 // Create orientation listenter. This should be done first because it 367 // takes some time to get first orientation. 368 mOrientationListener = new MyOrientationEventListener(Camera.this); 369 mOrientationListener.enable(); 370 371 // Initialize location sevice. 372 mLocationManager = (LocationManager) 373 getSystemService(Context.LOCATION_SERVICE); 374 mRecordLocation = RecordLocationPreference.get( 375 mPreferences, getContentResolver()); 376 initGpsOnScreenIndicator(); 377 if (mRecordLocation) startReceivingLocationUpdates(); 378 379 keepMediaProviderInstance(); 380 checkStorage(); 381 382 // Initialize last picture button. 383 mContentResolver = getContentResolver(); 384 if (!mIsImageCaptureIntent) { // no thumbnail in image capture intent 385 findViewById(R.id.camera_switch).setOnClickListener(this); 386 initThumbnailButton(); 387 if (mShareButton != null) mShareButton.setOnClickListener(this); 388 } 389 390 // Initialize shutter button. 391 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 392 mShutterButton.setOnShutterButtonListener(this); 393 mShutterButton.setVisibility(View.VISIBLE); 394 395 // Initialize focus UI. 396 mPreviewFrame = findViewById(R.id.camera_preview); 397 mPreviewFrame.setOnTouchListener(this); 398 mPreviewBorder = findViewById(R.id.preview_border); 399 // Set the length of focus rectangle according to preview frame size. 400 int len = Math.min(mPreviewFrame.getWidth(), mPreviewFrame.getHeight()) / 4; 401 ViewGroup.LayoutParams layout = mFocusRectangle.getLayoutParams(); 402 layout.width = len; 403 layout.height = len; 404 405 initializeScreenBrightness(); 406 installIntentFilter(); 407 initializeFocusTone(); 408 initializeZoom(); 409 // w1024dp devices use indicator wheel. Other devices use head-up display. 410 if (mIndicatorWheel == null) { 411 mHeadUpDisplay = new CameraHeadUpDisplay(this); 412 mHeadUpDisplay.setListener(new MyHeadUpDisplayListener()); 413 initializeHeadUpDisplay(); 414 } 415 mFirstTimeInitialized = true; 416 changeHeadUpDisplayState(); 417 addIdleHandler(); 418 } 419 420 private void addIdleHandler() { 421 MessageQueue queue = Looper.myQueue(); 422 queue.addIdleHandler(new MessageQueue.IdleHandler() { 423 public boolean queueIdle() { 424 Storage.ensureOSXCompatible(); 425 return false; 426 } 427 }); 428 } 429 430 private void initThumbnailButton() { 431 mThumbnailButton.setOnClickListener(this); 432 // Load the thumbnail from the disk. 433 mThumbnail = Thumbnail.loadFrom(new File(getFilesDir(), LAST_THUMB_FILENAME)); 434 updateThumbnailButton(); 435 } 436 437 private void updateThumbnailButton() { 438 // Update last image if URI is invalid and the storage is ready. 439 if ((mThumbnail == null || !Util.isUriValid(mThumbnail.getUri(), mContentResolver)) 440 && mPicturesRemaining >= 0) { 441 mThumbnail = Thumbnail.getLastImageThumbnail(mContentResolver); 442 } 443 if (mThumbnail != null) { 444 mThumbnailButton.setBitmap(mThumbnail.getBitmap()); 445 } else { 446 mThumbnailButton.setBitmap(null); 447 } 448 } 449 450 // If the activity is paused and resumed, this method will be called in 451 // onResume. 452 private void initializeSecondTime() { 453 // Start orientation listener as soon as possible because it takes 454 // some time to get first orientation. 455 mOrientationListener.enable(); 456 457 // Start location update if needed. 458 mRecordLocation = RecordLocationPreference.get( 459 mPreferences, getContentResolver()); 460 if (mRecordLocation) startReceivingLocationUpdates(); 461 462 installIntentFilter(); 463 initializeFocusTone(); 464 initializeZoom(); 465 changeHeadUpDisplayState(); 466 467 keepMediaProviderInstance(); 468 checkStorage(); 469 470 if (!mIsImageCaptureIntent) { 471 updateThumbnailButton(); 472 mSwitcher.setSwitch(SWITCH_CAMERA); 473 } 474 } 475 476 private void initializeZoom() { 477 if (!mParameters.isZoomSupported()) return; 478 479 mZoomMax = mParameters.getMaxZoom(); 480 mSmoothZoomSupported = mParameters.isSmoothZoomSupported(); 481 if (mZoomPicker != null) { 482 mZoomPicker.setZoomRatios(Util.convertZoomRatios(mParameters.getZoomRatios())); 483 mZoomPicker.setZoomIndex(mParameters.getZoom()); 484 mZoomPicker.setSmoothZoomSupported(mSmoothZoomSupported); 485 mZoomPicker.setOnZoomChangeListener( 486 new ZoomPicker.OnZoomChangedListener() { 487 // only for immediate zoom 488 @Override 489 public void onZoomValueChanged(int index) { 490 Camera.this.onZoomValueChanged(index); 491 } 492 493 // only for smooth zoom 494 @Override 495 public void onZoomStateChanged(int state) { 496 if (mPausing) return; 497 498 Log.v(TAG, "zoom picker state=" + state); 499 if (state == ZoomPicker.ZOOM_IN) { 500 Camera.this.onZoomValueChanged(mZoomMax); 501 } else if (state == ZoomPicker.ZOOM_OUT){ 502 Camera.this.onZoomValueChanged(0); 503 } else { 504 mTargetZoomValue = -1; 505 if (mZoomState == ZOOM_START) { 506 mZoomState = ZOOM_STOPPING; 507 mCameraDevice.stopSmoothZoom(); 508 } 509 } 510 } 511 }); 512 } 513 514 mCameraDevice.setZoomChangeListener(mZoomListener); 515 } 516 517 private void onZoomValueChanged(int index) { 518 // Not useful to change zoom value when the activity is paused. 519 if (mPausing) return; 520 521 if (mSmoothZoomSupported) { 522 if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { 523 mTargetZoomValue = index; 524 if (mZoomState == ZOOM_START) { 525 mZoomState = ZOOM_STOPPING; 526 mCameraDevice.stopSmoothZoom(); 527 } 528 } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { 529 mTargetZoomValue = index; 530 mCameraDevice.startSmoothZoom(index); 531 mZoomState = ZOOM_START; 532 } 533 } else { 534 mZoomValue = index; 535 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 536 } 537 } 538 539 private class PopupGestureListener 540 extends GestureDetector.SimpleOnGestureListener { 541 public boolean onDown(MotionEvent e) { 542 // Check if the popup window is visible. 543 View popup = mIndicatorWheel.getActivePopupWindow(); 544 if (popup == null) return false; 545 546 547 // Let popup window, indicator wheel or preview frame handle the 548 // event by themselves. Dismiss the popup window if users touch on 549 // other areas. 550 if (!Util.pointInView(e.getX(), e.getY(), popup) 551 && !Util.pointInView(e.getX(), e.getY(), mIndicatorWheel) 552 && !Util.pointInView(e.getX(), e.getY(), mPreviewFrame)) { 553 mIndicatorWheel.dismissSettingPopup(); 554 // Let event fall through. 555 } 556 return false; 557 } 558 } 559 560 @Override 561 public boolean dispatchTouchEvent(MotionEvent m) { 562 // Check if the popup window should be dismissed first. 563 if (mPopupGestureDetector != null && mPopupGestureDetector.onTouchEvent(m)) { 564 return true; 565 } 566 567 return super.dispatchTouchEvent(m); 568 } 569 570 LocationListener [] mLocationListeners = new LocationListener[] { 571 new LocationListener(LocationManager.GPS_PROVIDER), 572 new LocationListener(LocationManager.NETWORK_PROVIDER) 573 }; 574 575 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 576 @Override 577 public void onReceive(Context context, Intent intent) { 578 String action = intent.getAction(); 579 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 580 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 581 || action.equals(Intent.ACTION_MEDIA_CHECKING)) { 582 checkStorage(); 583 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 584 checkStorage(); 585 if (!mIsImageCaptureIntent) { 586 updateThumbnailButton(); 587 } 588 } 589 } 590 }; 591 592 private void initializeCameraPicker() { 593 mCameraPicker = (CameraPicker) findViewById(R.id.camera_picker); 594 if (mCameraPicker != null) { 595 mCameraPicker.setImageResource(R.drawable.camera_toggle); 596 ListPreference pref = mPreferenceGroup.findPreference( 597 CameraSettings.KEY_CAMERA_ID); 598 if (pref != null) { 599 mCameraPicker.initialize(pref); 600 mCameraPicker.setListener(new MyCameraPickerListener()); 601 } 602 } 603 } 604 605 private void initializeZoomPicker() { 606 mZoomPicker = (ZoomPicker) findViewById(R.id.zoom_picker); 607 if (mZoomPicker != null && mParameters.isZoomSupported()) { 608 mZoomPicker.setVisibility(View.VISIBLE); 609 } 610 } 611 612 private void initGpsOnScreenIndicator() { 613 mGpsNoSignalView = findViewById(R.id.onscreen_gps_indicator_no_signal); 614 mGpsHasSignalView = findViewById(R.id.onscreen_gps_indicator_on); 615 } 616 617 private void showGpsOnScreenIndicator(boolean hasSignal) { 618 if (hasSignal) { 619 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.INVISIBLE); 620 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.VISIBLE); 621 } else { 622 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.VISIBLE); 623 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.INVISIBLE); 624 } 625 } 626 627 private void hideGpsOnScreenIndicator() { 628 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.INVISIBLE); 629 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.INVISIBLE); 630 } 631 632 private class LocationListener 633 implements android.location.LocationListener { 634 Location mLastLocation; 635 boolean mValid = false; 636 String mProvider; 637 638 public LocationListener(String provider) { 639 mProvider = provider; 640 mLastLocation = new Location(mProvider); 641 } 642 643 public void onLocationChanged(Location newLocation) { 644 if (newLocation.getLatitude() == 0.0 645 && newLocation.getLongitude() == 0.0) { 646 // Hack to filter out 0.0,0.0 locations 647 return; 648 } 649 // If GPS is available before start camera, we won't get status 650 // update so update GPS indicator when we receive data. 651 if (mRecordLocation 652 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 653 showGpsOnScreenIndicator(true); 654 } 655 if (!mValid) { 656 Log.d(TAG, "Got first location."); 657 } 658 mLastLocation.set(newLocation); 659 mValid = true; 660 } 661 662 public void onProviderEnabled(String provider) { 663 } 664 665 public void onProviderDisabled(String provider) { 666 mValid = false; 667 } 668 669 public void onStatusChanged( 670 String provider, int status, Bundle extras) { 671 switch(status) { 672 case LocationProvider.OUT_OF_SERVICE: 673 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 674 mValid = false; 675 if (mRecordLocation && 676 LocationManager.GPS_PROVIDER.equals(provider)) { 677 showGpsOnScreenIndicator(false); 678 } 679 break; 680 } 681 } 682 } 683 684 public Location current() { 685 return mValid ? mLastLocation : null; 686 } 687 } 688 689 private final class ShutterCallback 690 implements android.hardware.Camera.ShutterCallback { 691 public void onShutter() { 692 mShutterCallbackTime = System.currentTimeMillis(); 693 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 694 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 695 updateFocusUI(); 696 } 697 } 698 699 private final class PostViewPictureCallback implements PictureCallback { 700 public void onPictureTaken( 701 byte [] data, android.hardware.Camera camera) { 702 mPostViewPictureCallbackTime = System.currentTimeMillis(); 703 Log.v(TAG, "mShutterToPostViewCallbackTime = " 704 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 705 + "ms"); 706 } 707 } 708 709 private final class RawPictureCallback implements PictureCallback { 710 public void onPictureTaken( 711 byte [] rawData, android.hardware.Camera camera) { 712 mRawPictureCallbackTime = System.currentTimeMillis(); 713 Log.v(TAG, "mShutterToRawCallbackTime = " 714 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 715 } 716 } 717 718 private final class JpegPictureCallback implements PictureCallback { 719 Location mLocation; 720 721 public JpegPictureCallback(Location loc) { 722 mLocation = loc; 723 } 724 725 public void onPictureTaken( 726 final byte [] jpegData, final android.hardware.Camera camera) { 727 if (mPausing) { 728 return; 729 } 730 731 mJpegPictureCallbackTime = System.currentTimeMillis(); 732 // If postview callback has arrived, the captured image is displayed 733 // in postview callback. If not, the captured image is displayed in 734 // raw picture callback. 735 if (mPostViewPictureCallbackTime != 0) { 736 mShutterToPictureDisplayedTime = 737 mPostViewPictureCallbackTime - mShutterCallbackTime; 738 mPictureDisplayedToJpegCallbackTime = 739 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 740 } else { 741 mShutterToPictureDisplayedTime = 742 mRawPictureCallbackTime - mShutterCallbackTime; 743 mPictureDisplayedToJpegCallbackTime = 744 mJpegPictureCallbackTime - mRawPictureCallbackTime; 745 } 746 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 747 + mPictureDisplayedToJpegCallbackTime + "ms"); 748 749 if (!mIsImageCaptureIntent) { 750 enableCameraControls(true); 751 752 // We want to show the taken picture for a while, so we wait 753 // for at least 1.2 second before restarting the preview. 754 long delay = 1200 - mPictureDisplayedToJpegCallbackTime; 755 if (delay < 0) { 756 startPreview(); 757 } else { 758 mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay); 759 } 760 } 761 storeImage(jpegData, camera, mLocation); 762 763 // Check this in advance of each shot so we don't add to shutter 764 // latency. It's true that someone else could write to the SD card in 765 // the mean time and fill it, but that could have happened between the 766 // shutter press and saving the JPEG too. 767 checkStorage(); 768 769 if (!mHandler.hasMessages(RESTART_PREVIEW)) { 770 long now = System.currentTimeMillis(); 771 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 772 Log.v(TAG, "mJpegCallbackFinishTime = " 773 + mJpegCallbackFinishTime + "ms"); 774 mJpegPictureCallbackTime = 0; 775 } 776 } 777 } 778 779 private final class AutoFocusCallback 780 implements android.hardware.Camera.AutoFocusCallback { 781 public void onAutoFocus( 782 boolean focused, android.hardware.Camera camera) { 783 mFocusCallbackTime = System.currentTimeMillis(); 784 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 785 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 786 if (mCameraState == FOCUSING_SNAP_ON_FINISH) { 787 // Take the picture no matter focus succeeds or fails. No need 788 // to play the AF sound if we're about to play the shutter 789 // sound. 790 if (focused) { 791 mCameraState = FOCUS_SUCCESS; 792 } else { 793 mCameraState = FOCUS_FAIL; 794 } 795 updateFocusUI(); 796 capture(); 797 } else if (mCameraState == FOCUSING) { 798 // This happens when (1) user is half-pressing the focus key or 799 // (2) touch focus is triggered. Play the focus tone. Do not 800 // take the picture now. 801 if (focused) { 802 mCameraState = FOCUS_SUCCESS; 803 if (mFocusToneGenerator != null) { 804 mFocusToneGenerator.startTone(ToneGenerator.TONE_PROP_BEEP2); 805 } 806 } else { 807 mCameraState = FOCUS_FAIL; 808 } 809 updateFocusUI(); 810 enableCameraControls(true); 811 // If this is triggered by touch focus, cancel focus after a 812 // while. 813 if (mFocusArea != null) { 814 mHandler.sendEmptyMessageDelayed(RESET_TOUCH_FOCUS, RESET_TOUCH_FOCUS_DELAY); 815 } 816 } else if (mCameraState == IDLE) { 817 // User has released the focus key before focus completes. 818 // Do nothing. 819 } 820 821 } 822 } 823 824 private final class ZoomListener 825 implements android.hardware.Camera.OnZoomChangeListener { 826 @Override 827 public void onZoomChange( 828 int value, boolean stopped, android.hardware.Camera camera) { 829 Log.v(TAG, "Zoom changed: value=" + value + ". stopped="+ stopped); 830 mZoomValue = value; 831 832 // Update the UI when we get zoom value. 833 if (mZoomPicker != null) mZoomPicker.setZoomIndex(value); 834 835 // Keep mParameters up to date. We do not getParameter again in 836 // takePicture. If we do not do this, wrong zoom value will be set. 837 mParameters.setZoom(value); 838 839 if (stopped && mZoomState != ZOOM_STOPPED) { 840 if (mTargetZoomValue != -1 && value != mTargetZoomValue) { 841 mCameraDevice.startSmoothZoom(mTargetZoomValue); 842 mZoomState = ZOOM_START; 843 } else { 844 mZoomState = ZOOM_STOPPED; 845 } 846 } 847 } 848 } 849 850 public void storeImage(final byte[] data, 851 android.hardware.Camera camera, Location loc) { 852 if (!mIsImageCaptureIntent) { 853 long dateTaken = System.currentTimeMillis(); 854 String title = createName(dateTaken); 855 int orientation = Exif.getOrientation(data); 856 Uri uri = Storage.addImage(mContentResolver, title, dateTaken, 857 loc, orientation, data); 858 if (uri != null) { 859 // Create a thumbnail whose size is smaller than half of the surface view. 860 int ratio = (int) Math.ceil((double) mParameters.getPictureSize().width 861 / (mPreviewFrame.getWidth() / 2)); 862 int inSampleSize = Util.nextPowerOf2(ratio); 863 mThumbnail = Thumbnail.createThumbnail(data, orientation, inSampleSize, uri); 864 if (mThumbnail != null) { 865 mThumbnailButton.setBitmap(mThumbnail.getBitmap()); 866 } 867 sendBroadcast(new Intent("com.android.camera.NEW_PICTURE", uri)); 868 } 869 } else { 870 mJpegImageData = data; 871 if (!mQuickCapture) { 872 showPostCaptureAlert(); 873 } else { 874 doAttach(); 875 } 876 } 877 } 878 879 private void capture() { 880 // If we are already in the middle of taking a snapshot then ignore. 881 if (mPausing || mCameraState == SNAPSHOT_IN_PROGRESS || mCameraDevice == null) { 882 return; 883 } 884 mCaptureStartTime = System.currentTimeMillis(); 885 mPostViewPictureCallbackTime = 0; 886 enableCameraControls(false); 887 mJpegImageData = null; 888 889 // See android.hardware.Camera.Parameters.setRotation for 890 // documentation. 891 int rotation = 0; 892 if (mOrientation != OrientationEventListener.ORIENTATION_UNKNOWN) { 893 CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; 894 if (info.facing == CameraInfo.CAMERA_FACING_FRONT) { 895 rotation = (info.orientation - mOrientation + 360) % 360; 896 } else { // back-facing camera 897 rotation = (info.orientation + mOrientation) % 360; 898 } 899 } 900 mParameters.setRotation(rotation); 901 902 // Clear previous GPS location from the parameters. 903 mParameters.removeGpsData(); 904 905 // We always encode GpsTimeStamp 906 mParameters.setGpsTimestamp(System.currentTimeMillis() / 1000); 907 908 // Set GPS location. 909 Location loc = mRecordLocation ? getCurrentLocation() : null; 910 if (loc != null) { 911 double lat = loc.getLatitude(); 912 double lon = loc.getLongitude(); 913 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 914 915 if (hasLatLon) { 916 Log.d(TAG, "Set gps location"); 917 mParameters.setGpsLatitude(lat); 918 mParameters.setGpsLongitude(lon); 919 mParameters.setGpsProcessingMethod(loc.getProvider().toUpperCase()); 920 if (loc.hasAltitude()) { 921 mParameters.setGpsAltitude(loc.getAltitude()); 922 } else { 923 // for NETWORK_PROVIDER location provider, we may have 924 // no altitude information, but the driver needs it, so 925 // we fake one. 926 mParameters.setGpsAltitude(0); 927 } 928 if (loc.getTime() != 0) { 929 // Location.getTime() is UTC in milliseconds. 930 // gps-timestamp is UTC in seconds. 931 long utcTimeSeconds = loc.getTime() / 1000; 932 mParameters.setGpsTimestamp(utcTimeSeconds); 933 } 934 } else { 935 loc = null; 936 } 937 } 938 939 mCameraDevice.setParameters(mParameters); 940 941 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 942 mPostViewPictureCallback, new JpegPictureCallback(loc)); 943 mCameraState = SNAPSHOT_IN_PROGRESS; 944 mHandler.removeMessages(RESET_TOUCH_FOCUS); 945 } 946 947 private boolean saveDataToFile(String filePath, byte[] data) { 948 FileOutputStream f = null; 949 try { 950 f = new FileOutputStream(filePath); 951 f.write(data); 952 } catch (IOException e) { 953 return false; 954 } finally { 955 Util.closeSilently(f); 956 } 957 return true; 958 } 959 960 private String createName(long dateTaken) { 961 Date date = new Date(dateTaken); 962 SimpleDateFormat dateFormat = new SimpleDateFormat( 963 getString(R.string.image_file_name_format)); 964 965 return dateFormat.format(date); 966 } 967 968 @Override 969 public void onCreate(Bundle icicle) { 970 super.onCreate(icicle); 971 972 mIsImageCaptureIntent = isImageCaptureIntent(); 973 if (mIsImageCaptureIntent) { 974 setContentView(R.layout.camera_attach); 975 } else { 976 setContentView(R.layout.camera); 977 } 978 mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); 979 mThumbnailButton = (RotateImageView) findViewById(R.id.review_thumbnail); 980 mReviewImage = (ImageView) findViewById(R.id.review_image); 981 mShareButton = (RotateImageView) findViewById(R.id.btn_share); 982 mCameraSwitchIcon = (RotateImageView) findViewById(R.id.camera_switch_icon); 983 mVideoSwitchIcon = (RotateImageView) findViewById(R.id.video_switch_icon); 984 985 mPreferences = new ComboPreferences(this); 986 CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal()); 987 988 mCameraId = CameraSettings.readPreferredCameraId(mPreferences); 989 990 // Testing purpose. Launch a specific camera through the intent extras. 991 int intentCameraId = Util.getCameraFacingIntentExtras(this); 992 if (intentCameraId != -1) { 993 mCameraId = intentCameraId; 994 } 995 996 mPreferences.setLocalId(this, mCameraId); 997 CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); 998 999 mNumberOfCameras = CameraHolder.instance().getNumberOfCameras(); 1000 mQuickCapture = getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false); 1001 1002 // we need to reset exposure for the preview 1003 resetExposureCompensation(); 1004 1005 /* 1006 * To reduce startup time, we start the preview in another thread. 1007 * We make sure the preview is started at the end of onCreate. 1008 */ 1009 Thread startPreviewThread = new Thread(new Runnable() { 1010 public void run() { 1011 try { 1012 mCameraDevice = Util.openCamera(Camera.this, mCameraId); 1013 mInitialParams = mCameraDevice.getParameters(); 1014 startPreview(); 1015 } catch (CameraHardwareException e) { 1016 mOpenCameraFail = true; 1017 } catch (CameraDisabledException e) { 1018 mCameraDisabled = true; 1019 } 1020 } 1021 }); 1022 startPreviewThread.start(); 1023 1024 // don't set mSurfaceHolder here. We have it set ONLY within 1025 // surfaceChanged / surfaceDestroyed, other parts of the code 1026 // assume that when it is set, the surface is also set. 1027 SurfaceView preview = (SurfaceView) findViewById(R.id.camera_preview); 1028 SurfaceHolder holder = preview.getHolder(); 1029 holder.addCallback(this); 1030 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 1031 1032 if (mIsImageCaptureIntent) { 1033 setupCaptureParams(); 1034 1035 findViewById(R.id.review_control).setVisibility(View.VISIBLE); 1036 findViewById(R.id.btn_cancel).setOnClickListener(this); 1037 findViewById(R.id.btn_retake).setOnClickListener(this); 1038 findViewById(R.id.btn_done).setOnClickListener(this); 1039 } else { 1040 mSwitcher = (SwitcherSet) findViewById(R.id.camera_switch); 1041 mSwitcher.setVisibility(View.VISIBLE); 1042 mSwitcher.setOnSwitchListener(this); 1043 mSwitcher.setSwitch(SWITCH_CAMERA); 1044 } 1045 1046 // Make sure preview is started. 1047 try { 1048 startPreviewThread.join(); 1049 if (mOpenCameraFail) { 1050 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1051 return; 1052 } else if (mCameraDisabled) { 1053 Util.showErrorAndFinish(this, R.string.camera_disabled); 1054 return; 1055 } 1056 } catch (InterruptedException ex) { 1057 // ignore 1058 } 1059 1060 mBackCameraId = CameraHolder.instance().getBackCameraId(); 1061 mFrontCameraId = CameraHolder.instance().getFrontCameraId(); 1062 1063 // Do this after starting preview because it depends on camera 1064 // parameters. 1065 initializeIndicatorWheel(); 1066 initializeCameraPicker(); 1067 initializeZoomPicker(); 1068 } 1069 1070 private void changeHeadUpDisplayState() { 1071 if (mHeadUpDisplay == null) return; 1072 // If the camera resumes behind the lock screen, the orientation 1073 // will be portrait. That causes OOM when we try to allocation GPU 1074 // memory for the GLSurfaceView again when the orientation changes. So, 1075 // we delayed initialization of HeadUpDisplay until the orientation 1076 // becomes landscape. 1077 Configuration config = getResources().getConfiguration(); 1078 if (config.orientation == Configuration.ORIENTATION_LANDSCAPE 1079 && !mPausing && mFirstTimeInitialized) { 1080 if (mGLRootView == null) attachHeadUpDisplay(); 1081 } else if (mGLRootView != null) { 1082 detachHeadUpDisplay(); 1083 } 1084 } 1085 1086 private void overrideCameraSettings(final String flashMode, 1087 final String whiteBalance, final String focusMode) { 1088 if (mHeadUpDisplay != null) { 1089 mHeadUpDisplay.overrideSettings( 1090 CameraSettings.KEY_FLASH_MODE, flashMode, 1091 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 1092 CameraSettings.KEY_FOCUS_MODE, focusMode); 1093 } 1094 if (mIndicatorWheel != null) { 1095 mIndicatorWheel.overrideSettings( 1096 CameraSettings.KEY_FLASH_MODE, flashMode, 1097 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 1098 CameraSettings.KEY_FOCUS_MODE, focusMode); 1099 } 1100 } 1101 1102 private void updateSceneModeUI() { 1103 // If scene mode is set, we cannot set flash mode, white balance, and 1104 // focus mode, instead, we read it from driver 1105 if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1106 overrideCameraSettings(mParameters.getFlashMode(), 1107 mParameters.getWhiteBalance(), mParameters.getFocusMode()); 1108 } else { 1109 overrideCameraSettings(null, null, null); 1110 } 1111 } 1112 1113 private void loadCameraPreferences() { 1114 CameraSettings settings = new CameraSettings(this, mInitialParams, 1115 mCameraId, CameraHolder.instance().getCameraInfo()); 1116 mPreferenceGroup = settings.getPreferenceGroup(R.xml.camera_preferences); 1117 } 1118 1119 private void initializeIndicatorWheel() { 1120 mIndicatorWheel = (IndicatorWheel) findViewById(R.id.indicator_wheel); 1121 if (mIndicatorWheel == null) return; 1122 loadCameraPreferences(); 1123 1124 final String[] SETTING_KEYS = { 1125 CameraSettings.KEY_FLASH_MODE, 1126 CameraSettings.KEY_WHITE_BALANCE, 1127 CameraSettings.KEY_SCENE_MODE}; 1128 final String[] OTHER_SETTING_KEYS = { 1129 CameraSettings.KEY_RECORD_LOCATION, 1130 CameraSettings.KEY_FOCUS_MODE, 1131 CameraSettings.KEY_EXPOSURE, 1132 CameraSettings.KEY_COLOR_EFFECT, 1133 CameraSettings.KEY_PICTURE_SIZE, 1134 CameraSettings.KEY_JPEG_QUALITY}; 1135 mIndicatorWheel.initialize(this, mPreferenceGroup, SETTING_KEYS, 1136 OTHER_SETTING_KEYS); 1137 mIndicatorWheel.setListener(new MyIndicatorWheelListener()); 1138 mPopupGestureDetector = new GestureDetector(this, 1139 new PopupGestureListener()); 1140 updateSceneModeUI(); 1141 } 1142 1143 private void initializeHeadUpDisplay() { 1144 if (mHeadUpDisplay == null) return; 1145 loadCameraPreferences(); 1146 1147 float[] zoomRatios = null; 1148 if(mParameters.isZoomSupported()) { 1149 zoomRatios = Util.convertZoomRatios(mParameters.getZoomRatios()); 1150 } 1151 mHeadUpDisplay.initialize(this, mPreferenceGroup, 1152 zoomRatios, mOrientationCompensation); 1153 if (mParameters.isZoomSupported()) { 1154 mHeadUpDisplay.setZoomListener(new ZoomControllerListener() { 1155 public void onZoomChanged( 1156 int index, float ratio, boolean isMoving) { 1157 onZoomValueChanged(index); 1158 } 1159 }); 1160 } 1161 updateSceneModeUI(); 1162 } 1163 1164 private void attachHeadUpDisplay() { 1165 mHeadUpDisplay.setOrientation(mOrientationCompensation); 1166 if (mParameters.isZoomSupported()) { 1167 mHeadUpDisplay.setZoomIndex(mZoomValue); 1168 } 1169 ViewGroup frame = (ViewGroup) findViewById(R.id.frame); 1170 mGLRootView = new GLRootView(this); 1171 mGLRootView.setContentPane(mHeadUpDisplay); 1172 frame.addView(mGLRootView); 1173 } 1174 1175 private void detachHeadUpDisplay() { 1176 mHeadUpDisplay.collapse(); 1177 ((ViewGroup) mGLRootView.getParent()).removeView(mGLRootView); 1178 mGLRootView = null; 1179 } 1180 1181 private boolean collapseCameraControls() { 1182 if (mHeadUpDisplay != null && mHeadUpDisplay.collapse()) { 1183 return true; 1184 } 1185 if (mIndicatorWheel != null && mIndicatorWheel.dismissSettingPopup()) { 1186 return true; 1187 } 1188 return false; 1189 } 1190 1191 private void enableCameraControls(boolean enable) { 1192 if (mHeadUpDisplay != null) mHeadUpDisplay.setEnabled(enable); 1193 if (mIndicatorWheel != null) mIndicatorWheel.setEnabled(enable); 1194 if (mCameraPicker != null) mCameraPicker.setEnabled(enable); 1195 if (mZoomPicker != null) mZoomPicker.setEnabled(enable); 1196 if (mSwitcher != null) mSwitcher.setEnabled(enable); 1197 } 1198 1199 public static int roundOrientation(int orientation) { 1200 return ((orientation + 45) / 90 * 90) % 360; 1201 } 1202 1203 private class MyOrientationEventListener 1204 extends OrientationEventListener { 1205 public MyOrientationEventListener(Context context) { 1206 super(context); 1207 } 1208 1209 @Override 1210 public void onOrientationChanged(int orientation) { 1211 // We keep the last known orientation. So if the user first orient 1212 // the camera then point the camera to floor or sky, we still have 1213 // the correct orientation. 1214 if (orientation == ORIENTATION_UNKNOWN) return; 1215 mOrientation = roundOrientation(orientation); 1216 // When the screen is unlocked, display rotation may change. Always 1217 // calculate the up-to-date orientationCompensation. 1218 int orientationCompensation = mOrientation 1219 + Util.getDisplayRotation(Camera.this); 1220 if (mOrientationCompensation != orientationCompensation) { 1221 mOrientationCompensation = orientationCompensation; 1222 if (!mIsImageCaptureIntent) { 1223 setOrientationIndicator(mOrientationCompensation); 1224 } 1225 if (mHeadUpDisplay != null) { 1226 mHeadUpDisplay.setOrientation(mOrientationCompensation); 1227 } 1228 } 1229 } 1230 } 1231 1232 private void setOrientationIndicator(int degree) { 1233 if (mThumbnailButton != null) mThumbnailButton.setDegree(degree); 1234 if (mShareButton != null) mShareButton.setDegree(degree); 1235 if (mCameraSwitchIcon != null) mCameraSwitchIcon.setDegree(degree); 1236 if (mVideoSwitchIcon != null) mVideoSwitchIcon.setDegree(degree); 1237 } 1238 1239 @Override 1240 public void onStop() { 1241 super.onStop(); 1242 if (mMediaProviderClient != null) { 1243 mMediaProviderClient.release(); 1244 mMediaProviderClient = null; 1245 } 1246 } 1247 1248 private void checkStorage() { 1249 mPicturesRemaining = Storage.getAvailableSpace(); 1250 if (mPicturesRemaining > 0) { 1251 mPicturesRemaining /= 1500000; 1252 } 1253 updateStorageHint(); 1254 } 1255 1256 public void onClick(View v) { 1257 switch (v.getId()) { 1258 case R.id.btn_retake: 1259 hidePostCaptureAlert(); 1260 startPreview(); 1261 break; 1262 case R.id.review_thumbnail: 1263 if (isCameraIdle() && mThumbnail != null) { 1264 Util.viewUri(mThumbnail.getUri(), this); 1265 } 1266 break; 1267 case R.id.btn_done: 1268 doAttach(); 1269 break; 1270 case R.id.btn_cancel: 1271 doCancel(); 1272 break; 1273 case R.id.btn_gallery: 1274 gotoGallery(); 1275 break; 1276 case R.id.btn_share: 1277 onShareButtonClicked(); 1278 break; 1279 } 1280 } 1281 1282 private void doAttach() { 1283 if (mPausing) { 1284 return; 1285 } 1286 1287 byte[] data = mJpegImageData; 1288 1289 if (mCropValue == null) { 1290 // First handle the no crop case -- just return the value. If the 1291 // caller specifies a "save uri" then write the data to it's 1292 // stream. Otherwise, pass back a scaled down version of the bitmap 1293 // directly in the extras. 1294 if (mSaveUri != null) { 1295 OutputStream outputStream = null; 1296 try { 1297 outputStream = mContentResolver.openOutputStream(mSaveUri); 1298 outputStream.write(data); 1299 outputStream.close(); 1300 1301 setResultEx(RESULT_OK); 1302 finish(); 1303 } catch (IOException ex) { 1304 // ignore exception 1305 } finally { 1306 Util.closeSilently(outputStream); 1307 } 1308 } else { 1309 int orientation = Exif.getOrientation(data); 1310 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1311 bitmap = Util.rotate(bitmap, orientation); 1312 setResultEx(RESULT_OK, 1313 new Intent("inline-data").putExtra("data", bitmap)); 1314 finish(); 1315 } 1316 } else { 1317 // Save the image to a temp file and invoke the cropper 1318 Uri tempUri = null; 1319 FileOutputStream tempStream = null; 1320 try { 1321 File path = getFileStreamPath(sTempCropFilename); 1322 path.delete(); 1323 tempStream = openFileOutput(sTempCropFilename, 0); 1324 tempStream.write(data); 1325 tempStream.close(); 1326 tempUri = Uri.fromFile(path); 1327 } catch (FileNotFoundException ex) { 1328 setResultEx(Activity.RESULT_CANCELED); 1329 finish(); 1330 return; 1331 } catch (IOException ex) { 1332 setResultEx(Activity.RESULT_CANCELED); 1333 finish(); 1334 return; 1335 } finally { 1336 Util.closeSilently(tempStream); 1337 } 1338 1339 Bundle newExtras = new Bundle(); 1340 if (mCropValue.equals("circle")) { 1341 newExtras.putString("circleCrop", "true"); 1342 } 1343 if (mSaveUri != null) { 1344 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1345 } else { 1346 newExtras.putBoolean("return-data", true); 1347 } 1348 1349 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1350 1351 cropIntent.setData(tempUri); 1352 cropIntent.putExtras(newExtras); 1353 1354 startActivityForResult(cropIntent, CROP_MSG); 1355 } 1356 } 1357 1358 private void doCancel() { 1359 setResultEx(RESULT_CANCELED, new Intent()); 1360 finish(); 1361 } 1362 1363 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1364 if (mPausing) { 1365 return; 1366 } 1367 switch (button.getId()) { 1368 case R.id.shutter_button: 1369 doFocus(pressed); 1370 break; 1371 } 1372 } 1373 1374 public void onShutterButtonClick(ShutterButton button) { 1375 if (mPausing) { 1376 return; 1377 } 1378 switch (button.getId()) { 1379 case R.id.shutter_button: 1380 doSnap(); 1381 break; 1382 } 1383 } 1384 1385 private OnScreenHint mStorageHint; 1386 1387 private void updateStorageHint() { 1388 String noStorageText = null; 1389 1390 if (mPicturesRemaining == Storage.UNAVAILABLE) { 1391 noStorageText = getString(R.string.no_storage); 1392 } else if (mPicturesRemaining == Storage.PREPARING) { 1393 noStorageText = getString(R.string.preparing_sd); 1394 } else if (mPicturesRemaining == Storage.UNKNOWN_SIZE) { 1395 noStorageText = getString(R.string.access_sd_fail); 1396 } else if (mPicturesRemaining < 1L) { 1397 noStorageText = getString(R.string.not_enough_space); 1398 } 1399 1400 if (noStorageText != null) { 1401 if (mStorageHint == null) { 1402 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1403 } else { 1404 mStorageHint.setText(noStorageText); 1405 } 1406 mStorageHint.show(); 1407 } else if (mStorageHint != null) { 1408 mStorageHint.cancel(); 1409 mStorageHint = null; 1410 } 1411 } 1412 1413 private void installIntentFilter() { 1414 // install an intent filter to receive SD card related events. 1415 IntentFilter intentFilter = 1416 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1417 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1418 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1419 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1420 intentFilter.addDataScheme("file"); 1421 registerReceiver(mReceiver, intentFilter); 1422 mDidRegister = true; 1423 } 1424 1425 private void initializeFocusTone() { 1426 // Initialize focus tone generator. 1427 try { 1428 mFocusToneGenerator = new ToneGenerator( 1429 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1430 } catch (Throwable ex) { 1431 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1432 mFocusToneGenerator = null; 1433 } 1434 } 1435 1436 private void initializeScreenBrightness() { 1437 Window win = getWindow(); 1438 // Overright the brightness settings if it is automatic 1439 int mode = Settings.System.getInt( 1440 getContentResolver(), 1441 Settings.System.SCREEN_BRIGHTNESS_MODE, 1442 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); 1443 if (mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC) { 1444 WindowManager.LayoutParams winParams = win.getAttributes(); 1445 winParams.screenBrightness = DEFAULT_CAMERA_BRIGHTNESS; 1446 win.setAttributes(winParams); 1447 } 1448 } 1449 1450 @Override 1451 protected void onResume() { 1452 super.onResume(); 1453 mPausing = false; 1454 if (mOpenCameraFail || mCameraDisabled) return; 1455 1456 mJpegPictureCallbackTime = 0; 1457 mZoomValue = 0; 1458 1459 mReviewImage.setVisibility(View.GONE); 1460 1461 // Start the preview if it is not started. 1462 if (mCameraState == PREVIEW_STOPPED) { 1463 try { 1464 mCameraDevice = Util.openCamera(this, mCameraId); 1465 mInitialParams = mCameraDevice.getParameters(); 1466 resetExposureCompensation(); 1467 startPreview(); 1468 } catch(CameraHardwareException e) { 1469 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1470 return; 1471 } catch(CameraDisabledException e) { 1472 Util.showErrorAndFinish(this, R.string.camera_disabled); 1473 return; 1474 } 1475 } 1476 1477 if (mSurfaceHolder != null) { 1478 // If first time initialization is not finished, put it in the 1479 // message queue. 1480 if (!mFirstTimeInitialized) { 1481 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1482 } else { 1483 initializeSecondTime(); 1484 } 1485 } 1486 keepScreenOnAwhile(); 1487 1488 if (mCameraState == IDLE) { 1489 mOnResumeTime = SystemClock.uptimeMillis(); 1490 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 1491 } 1492 } 1493 1494 @Override 1495 public void onConfigurationChanged(Configuration config) { 1496 super.onConfigurationChanged(config); 1497 changeHeadUpDisplayState(); 1498 } 1499 1500 @Override 1501 protected void onPause() { 1502 mPausing = true; 1503 stopPreview(); 1504 // Close the camera now because other activities may need to use it. 1505 closeCamera(); 1506 resetScreenOn(); 1507 collapseCameraControls(); 1508 changeHeadUpDisplayState(); 1509 1510 if (mFirstTimeInitialized) { 1511 mOrientationListener.disable(); 1512 if (!mIsImageCaptureIntent) { 1513 if (mThumbnail != null) { 1514 mThumbnail.saveTo(new File(getFilesDir(), LAST_THUMB_FILENAME)); 1515 } 1516 } 1517 hidePostCaptureAlert(); 1518 } 1519 1520 if (mDidRegister) { 1521 unregisterReceiver(mReceiver); 1522 mDidRegister = false; 1523 } 1524 stopReceivingLocationUpdates(); 1525 1526 if (mFocusToneGenerator != null) { 1527 mFocusToneGenerator.release(); 1528 mFocusToneGenerator = null; 1529 } 1530 1531 if (mStorageHint != null) { 1532 mStorageHint.cancel(); 1533 mStorageHint = null; 1534 } 1535 1536 // If we are in an image capture intent and has taken 1537 // a picture, we just clear it in onPause. 1538 mJpegImageData = null; 1539 1540 // Remove the messages in the event queue. 1541 mHandler.removeMessages(RESTART_PREVIEW); 1542 mHandler.removeMessages(FIRST_TIME_INIT); 1543 mHandler.removeMessages(CHECK_DISPLAY_ROTATION); 1544 mHandler.removeMessages(RESET_TOUCH_FOCUS); 1545 1546 super.onPause(); 1547 } 1548 1549 @Override 1550 protected void onActivityResult( 1551 int requestCode, int resultCode, Intent data) { 1552 switch (requestCode) { 1553 case CROP_MSG: { 1554 Intent intent = new Intent(); 1555 if (data != null) { 1556 Bundle extras = data.getExtras(); 1557 if (extras != null) { 1558 intent.putExtras(extras); 1559 } 1560 } 1561 setResultEx(resultCode, intent); 1562 finish(); 1563 1564 File path = getFileStreamPath(sTempCropFilename); 1565 path.delete(); 1566 1567 break; 1568 } 1569 } 1570 } 1571 1572 private boolean canTakePicture() { 1573 return isCameraIdle() && (mPicturesRemaining > 0); 1574 } 1575 1576 private void autoFocus() { 1577 Log.v(TAG, "Start autofocus."); 1578 mFocusStartTime = System.currentTimeMillis(); 1579 mCameraDevice.autoFocus(mAutoFocusCallback); 1580 mCameraState = FOCUSING; 1581 enableCameraControls(false); 1582 updateFocusUI(); 1583 mHandler.removeMessages(RESET_TOUCH_FOCUS); 1584 } 1585 1586 private void cancelAutoFocus() { 1587 Log.v(TAG, "Cancel autofocus."); 1588 mCameraDevice.cancelAutoFocus(); 1589 mCameraState = IDLE; 1590 enableCameraControls(true); 1591 resetTouchFocus(); 1592 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1593 updateFocusUI(); 1594 mHandler.removeMessages(RESET_TOUCH_FOCUS); 1595 } 1596 1597 private void updateFocusUI() { 1598 if (mCameraState == FOCUSING || mCameraState == FOCUSING_SNAP_ON_FINISH) { 1599 mFocusRectangle.showStart(); 1600 } else if (mCameraState == FOCUS_SUCCESS) { 1601 mFocusRectangle.showSuccess(); 1602 } else if (mCameraState == FOCUS_FAIL) { 1603 mFocusRectangle.showFail(); 1604 } else if (mCameraState == IDLE && mFocusArea != null) { 1605 // Users touch on the preview and the rectangle indicates the metering area. 1606 // Either focus area is not supported or autoFocus call is not required. 1607 mFocusRectangle.showStart(); 1608 } else { 1609 mFocusRectangle.clear(); 1610 } 1611 } 1612 1613 // Preview area is touched. Handle touch focus. 1614 @Override 1615 public boolean onTouch(View v, MotionEvent e) { 1616 if (mPausing || !mFirstTimeInitialized || mCameraState == SNAPSHOT_IN_PROGRESS 1617 || mCameraState == FOCUSING_SNAP_ON_FINISH) { 1618 return false; 1619 } 1620 1621 // Do not trigger touch focus if popup window is opened. 1622 if (collapseCameraControls()) return false; 1623 1624 // Check if metering area or focus area is supported. 1625 boolean focusAreaSupported = (mParameters.getMaxNumFocusAreas() > 0 1626 && (mFocusMode.equals(Parameters.FOCUS_MODE_AUTO) || 1627 mFocusMode.equals(Parameters.FOCUS_MODE_MACRO) || 1628 mFocusMode.equals(Parameters.FOCUS_MODE_CONTINUOUS_VIDEO))); 1629 boolean meteringAreaSupported = (mParameters.getMaxNumMeteringAreas() > 0); 1630 if (!focusAreaSupported && !meteringAreaSupported) return false; 1631 1632 boolean callAutoFocusRequired = false; 1633 if (focusAreaSupported && 1634 (mFocusMode.equals(Parameters.FOCUS_MODE_AUTO) || 1635 mFocusMode.equals(Parameters.FOCUS_MODE_MACRO))) { 1636 callAutoFocusRequired = true; 1637 } 1638 1639 // Let users be able to cancel previous touch focus. 1640 if (callAutoFocusRequired && mFocusArea != null && e.getAction() == MotionEvent.ACTION_DOWN 1641 && (mCameraState == FOCUSING || mCameraState == FOCUS_SUCCESS || 1642 mCameraState == FOCUS_FAIL)) { 1643 cancelAutoFocus(); 1644 } 1645 1646 // Initialize variables. 1647 int x = Math.round(e.getX()); 1648 int y = Math.round(e.getY()); 1649 int focusWidth = mFocusRectangle.getWidth(); 1650 int focusHeight = mFocusRectangle.getHeight(); 1651 int previewWidth = mPreviewFrame.getWidth(); 1652 int previewHeight = mPreviewFrame.getHeight(); 1653 if (mFocusArea == null) { 1654 mFocusArea = new ArrayList<Area>(); 1655 mFocusArea.add(new Area(new Rect(), 1)); 1656 } 1657 1658 // Convert the coordinates to driver format. The actual focus area is two times bigger than 1659 // UI because a huge rectangle looks strange. 1660 int areaWidth = focusWidth * 2; 1661 int areaHeight = focusHeight * 2; 1662 int areaLeft = Util.clamp(x - areaWidth / 2, 0, previewWidth - areaWidth); 1663 int areaTop = Util.clamp(y - areaHeight / 2, 0, previewHeight - areaHeight); 1664 Log.d(TAG, "x=" + x + ". y=" + y); 1665 Log.d(TAG, "Focus area left=" + areaLeft + ". top=" + areaTop); 1666 Log.d(TAG, "Preview width=" + previewWidth + ". height=" + previewHeight); 1667 Log.d(TAG, "focusWidth=" + focusWidth + ". focusHeight=" + focusHeight); 1668 Rect rect = mFocusArea.get(0).rect; 1669 convertToFocusArea(areaLeft, areaTop, areaWidth, areaHeight, previewWidth, previewHeight, 1670 mFocusArea.get(0).rect); 1671 1672 // Use margin to set the focus rectangle to the touched area. 1673 RelativeLayout.LayoutParams p = 1674 (RelativeLayout.LayoutParams) mFocusRectangle.getLayoutParams(); 1675 int left = Util.clamp(x - focusWidth / 2, 0, previewWidth - focusWidth); 1676 int top = Util.clamp(y - focusHeight / 2, 0, previewHeight - focusHeight); 1677 p.setMargins(left, top, 0, 0); 1678 // Disable "center" rule because we no longer want to put it in the center. 1679 int[] rules = p.getRules(); 1680 rules[RelativeLayout.CENTER_IN_PARENT] = 0; 1681 mFocusRectangle.requestLayout(); 1682 1683 // Set the focus area and metering area. 1684 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1685 if (callAutoFocusRequired && e.getAction() == MotionEvent.ACTION_UP) { 1686 autoFocus(); 1687 } else { // Just show the rectangle in all other cases. 1688 updateFocusUI(); 1689 // Reset the metering area in 3 seconds. 1690 mHandler.removeMessages(RESET_TOUCH_FOCUS); 1691 mHandler.sendEmptyMessageDelayed(RESET_TOUCH_FOCUS, RESET_TOUCH_FOCUS_DELAY); 1692 } 1693 1694 return true; 1695 } 1696 1697 // Convert the touch point to the focus area in driver format. 1698 public static void convertToFocusArea(int left, int top, int focusWidth, int focusHeight, 1699 int previewWidth, int previewHeight, Rect rect) { 1700 rect.left = Math.round((float) left / previewWidth * 2000 - 1000); 1701 rect.top = Math.round((float) top / previewHeight * 2000 - 1000); 1702 rect.right = Math.round((float) (left + focusWidth) / previewWidth * 2000 - 1000); 1703 rect.bottom = Math.round((float) (top + focusHeight) / previewHeight * 2000 - 1000); 1704 } 1705 1706 void resetTouchFocus() { 1707 // Put focus rectangle to the center. 1708 RelativeLayout.LayoutParams p = 1709 (RelativeLayout.LayoutParams) mFocusRectangle.getLayoutParams(); 1710 int[] rules = p.getRules(); 1711 rules[RelativeLayout.CENTER_IN_PARENT] = RelativeLayout.TRUE; 1712 p.setMargins(0, 0, 0, 0); 1713 1714 mFocusArea = null; 1715 } 1716 1717 @Override 1718 public void onBackPressed() { 1719 if (!isCameraIdle()) { 1720 // ignore backs while we're taking a picture 1721 return; 1722 } else if (!collapseCameraControls()) { 1723 super.onBackPressed(); 1724 } 1725 } 1726 1727 @Override 1728 public boolean onKeyDown(int keyCode, KeyEvent event) { 1729 switch (keyCode) { 1730 case KeyEvent.KEYCODE_FOCUS: 1731 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1732 doFocus(true); 1733 } 1734 return true; 1735 case KeyEvent.KEYCODE_CAMERA: 1736 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1737 doSnap(); 1738 } 1739 return true; 1740 case KeyEvent.KEYCODE_DPAD_CENTER: 1741 // If we get a dpad center event without any focused view, move 1742 // the focus to the shutter button and press it. 1743 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1744 // Start auto-focus immediately to reduce shutter lag. After 1745 // the shutter button gets the focus, doFocus() will be 1746 // called again but it is fine. 1747 if (collapseCameraControls()) return true; 1748 doFocus(true); 1749 if (mShutterButton.isInTouchMode()) { 1750 mShutterButton.requestFocusFromTouch(); 1751 } else { 1752 mShutterButton.requestFocus(); 1753 } 1754 mShutterButton.setPressed(true); 1755 } 1756 return true; 1757 } 1758 1759 return super.onKeyDown(keyCode, event); 1760 } 1761 1762 @Override 1763 public boolean onKeyUp(int keyCode, KeyEvent event) { 1764 switch (keyCode) { 1765 case KeyEvent.KEYCODE_FOCUS: 1766 if (mFirstTimeInitialized) { 1767 doFocus(false); 1768 } 1769 return true; 1770 } 1771 return super.onKeyUp(keyCode, event); 1772 } 1773 1774 private void doSnap() { 1775 if (collapseCameraControls()) return; 1776 1777 Log.v(TAG, "doSnap: mCameraState=" + mCameraState); 1778 // If the user has half-pressed the shutter and focus is completed, we 1779 // can take the photo right away. If the focus mode is infinity, we can 1780 // also take the photo. 1781 if (mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1782 || mFocusMode.equals(Parameters.FOCUS_MODE_FIXED) 1783 || mFocusMode.equals(Parameters.FOCUS_MODE_EDOF) 1784 || (mCameraState == FOCUS_SUCCESS 1785 || mCameraState == FOCUS_FAIL)) { 1786 capture(); 1787 } else if (mCameraState == FOCUSING) { 1788 // Half pressing the shutter (i.e. the focus button event) will 1789 // already have requested AF for us, so just request capture on 1790 // focus here. 1791 mCameraState = FOCUSING_SNAP_ON_FINISH; 1792 } else if (mCameraState == IDLE) { 1793 // Focus key down event is dropped for some reasons. Just ignore. 1794 } 1795 } 1796 1797 private void doFocus(boolean pressed) { 1798 // Do the focus if the mode is not infinity. 1799 if (collapseCameraControls()) return; 1800 if (!(mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1801 || mFocusMode.equals(Parameters.FOCUS_MODE_FIXED) 1802 || mFocusMode.equals(Parameters.FOCUS_MODE_EDOF))) { 1803 if (pressed) { // Focus key down. 1804 // Do not do focus if there is not enoguh storage. Do not focus 1805 // if touch focus has been triggered, that is, camera state is 1806 // FOCUS_SUCCESS or FOCUS_FAIL. 1807 if (canTakePicture() && mCameraState != FOCUS_SUCCESS 1808 && mCameraState != FOCUS_FAIL) { 1809 autoFocus(); 1810 } 1811 } else { // Focus key up. 1812 // User releases half-pressed focus key. 1813 if (mCameraState == FOCUSING || mCameraState == FOCUS_SUCCESS 1814 || mCameraState == FOCUS_FAIL) { 1815 cancelAutoFocus(); 1816 } 1817 } 1818 } 1819 } 1820 1821 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1822 // Make sure we have a surface in the holder before proceeding. 1823 if (holder.getSurface() == null) { 1824 Log.d(TAG, "holder.getSurface() == null"); 1825 return; 1826 } 1827 1828 Log.v(TAG, "surfaceChanged. w=" + w + ". h=" + h); 1829 1830 // We need to save the holder for later use, even when the mCameraDevice 1831 // is null. This could happen if onResume() is invoked after this 1832 // function. 1833 mSurfaceHolder = holder; 1834 1835 // The mCameraDevice will be null if it fails to connect to the camera 1836 // hardware. In this case we will show a dialog and then finish the 1837 // activity, so it's OK to ignore it. 1838 if (mCameraDevice == null) return; 1839 1840 // Sometimes surfaceChanged is called after onPause or before onResume. 1841 // Ignore it. 1842 if (mPausing || isFinishing()) return; 1843 1844 // Set preview display if the surface is being created. Preview was 1845 // already started. Also restart the preview if display rotation has 1846 // changed. Sometimes this happens when the device is held in portrait 1847 // and camera app is opened. Rotation animation takes some time and 1848 // display rotation in onCreate may not be what we want. 1849 if (mCameraState != PREVIEW_STOPPED 1850 && (Util.getDisplayRotation(this) == mDisplayRotation) 1851 && holder.isCreating()) { 1852 // Set preview display if the surface is being created and preview 1853 // was already started. That means preview display was set to null 1854 // and we need to set it now. 1855 setPreviewDisplay(holder); 1856 } else { 1857 // 1. Restart the preview if the size of surface was changed. The 1858 // framework may not support changing preview display on the fly. 1859 // 2. Start the preview now if surface was destroyed and preview 1860 // stopped. 1861 startPreview(); 1862 } 1863 1864 // If first time initialization is not finished, send a message to do 1865 // it later. We want to finish surfaceChanged as soon as possible to let 1866 // user see preview first. 1867 if (!mFirstTimeInitialized) { 1868 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1869 } else { 1870 initializeSecondTime(); 1871 } 1872 } 1873 1874 public void surfaceCreated(SurfaceHolder holder) { 1875 } 1876 1877 public void surfaceDestroyed(SurfaceHolder holder) { 1878 stopPreview(); 1879 mSurfaceHolder = null; 1880 } 1881 1882 private void closeCamera() { 1883 if (mCameraDevice != null) { 1884 CameraHolder.instance().release(); 1885 mCameraDevice.setZoomChangeListener(null); 1886 mCameraDevice = null; 1887 mCameraState = PREVIEW_STOPPED; 1888 } 1889 } 1890 1891 private void setPreviewDisplay(SurfaceHolder holder) { 1892 try { 1893 mCameraDevice.setPreviewDisplay(holder); 1894 } catch (Throwable ex) { 1895 closeCamera(); 1896 throw new RuntimeException("setPreviewDisplay failed", ex); 1897 } 1898 } 1899 1900 private void startPreview() { 1901 if (mPausing || isFinishing()) return; 1902 1903 resetTouchFocus(); 1904 1905 mCameraDevice.setErrorCallback(mErrorCallback); 1906 1907 // If we're previewing already, stop the preview first (this will blank 1908 // the screen). 1909 if (mCameraState != PREVIEW_STOPPED) stopPreview(); 1910 1911 setPreviewDisplay(mSurfaceHolder); 1912 mDisplayRotation = Util.getDisplayRotation(this); 1913 Util.setCameraDisplayOrientation(mDisplayRotation, mCameraId, mCameraDevice); 1914 setCameraParameters(UPDATE_PARAM_ALL); 1915 1916 1917 try { 1918 Log.v(TAG, "startPreview"); 1919 mCameraDevice.startPreview(); 1920 } catch (Throwable ex) { 1921 closeCamera(); 1922 throw new RuntimeException("startPreview failed", ex); 1923 } 1924 mZoomState = ZOOM_STOPPED; 1925 mCameraState = IDLE; 1926 } 1927 1928 private void stopPreview() { 1929 if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) { 1930 Log.v(TAG, "stopPreview"); 1931 mCameraDevice.stopPreview(); 1932 } 1933 mCameraState = PREVIEW_STOPPED; 1934 // If auto focus was in progress, it would have been canceled. 1935 updateFocusUI(); 1936 } 1937 1938 private static boolean isSupported(String value, List<String> supported) { 1939 return supported == null ? false : supported.indexOf(value) >= 0; 1940 } 1941 1942 private void updateCameraParametersInitialize() { 1943 // Reset preview frame rate to the maximum because it may be lowered by 1944 // video camera application. 1945 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1946 if (frameRates != null) { 1947 Integer max = Collections.max(frameRates); 1948 mParameters.setPreviewFrameRate(max); 1949 } 1950 1951 } 1952 1953 private void updateCameraParametersZoom() { 1954 // Set zoom. 1955 if (mParameters.isZoomSupported()) { 1956 mParameters.setZoom(mZoomValue); 1957 } 1958 } 1959 1960 private void updateCameraParametersPreference() { 1961 if (mParameters.getMaxNumFocusAreas() > 0) { 1962 mParameters.setFocusAreas(mFocusArea); 1963 Log.d(TAG, "Parameter focus areas=" + mParameters.get("focus-areas")); 1964 } 1965 1966 if (mParameters.getMaxNumMeteringAreas() > 0) { 1967 // Use the same area for focus and metering. 1968 mParameters.setMeteringAreas(mFocusArea); 1969 } 1970 1971 // Set picture size. 1972 String pictureSize = mPreferences.getString( 1973 CameraSettings.KEY_PICTURE_SIZE, null); 1974 if (pictureSize == null) { 1975 CameraSettings.initialCameraPictureSize(this, mParameters); 1976 } else { 1977 List<Size> supported = mParameters.getSupportedPictureSizes(); 1978 CameraSettings.setCameraPictureSize( 1979 pictureSize, supported, mParameters); 1980 } 1981 1982 // Set the preview frame aspect ratio according to the picture size. 1983 Size size = mParameters.getPictureSize(); 1984 PreviewFrameLayout frameLayout = 1985 (PreviewFrameLayout) findViewById(R.id.frame_layout); 1986 frameLayout.setAspectRatio((double) size.width / size.height); 1987 1988 // Set a preview size that is closest to the viewfinder height and has 1989 // the right aspect ratio. 1990 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1991 Size optimalSize = Util.getOptimalPreviewSize(this, 1992 sizes, (double) size.width / size.height); 1993 Size original = mParameters.getPreviewSize(); 1994 if (!original.equals(optimalSize)) { 1995 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1996 1997 // Zoom related settings will be changed for different preview 1998 // sizes, so set and read the parameters to get lastest values 1999 mCameraDevice.setParameters(mParameters); 2000 mParameters = mCameraDevice.getParameters(); 2001 } 2002 Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height); 2003 2004 // Since change scene mode may change supported values, 2005 // Set scene mode first, 2006 mSceneMode = mPreferences.getString( 2007 CameraSettings.KEY_SCENE_MODE, 2008 getString(R.string.pref_camera_scenemode_default)); 2009 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 2010 if (!mParameters.getSceneMode().equals(mSceneMode)) { 2011 mParameters.setSceneMode(mSceneMode); 2012 mCameraDevice.setParameters(mParameters); 2013 2014 // Setting scene mode will change the settings of flash mode, 2015 // white balance, and focus mode. Here we read back the 2016 // parameters, so we can know those settings. 2017 mParameters = mCameraDevice.getParameters(); 2018 } 2019 } else { 2020 mSceneMode = mParameters.getSceneMode(); 2021 if (mSceneMode == null) { 2022 mSceneMode = Parameters.SCENE_MODE_AUTO; 2023 } 2024 } 2025 2026 // Set JPEG quality. 2027 String jpegQuality = mPreferences.getString( 2028 CameraSettings.KEY_JPEG_QUALITY, 2029 getString(R.string.pref_camera_jpegquality_default)); 2030 mParameters.setJpegQuality(JpegEncodingQualityMappings.getQualityNumber(jpegQuality)); 2031 2032 // For the following settings, we need to check if the settings are 2033 // still supported by latest driver, if not, ignore the settings. 2034 2035 // Set color effect parameter. 2036 String colorEffect = mPreferences.getString( 2037 CameraSettings.KEY_COLOR_EFFECT, 2038 getString(R.string.pref_camera_coloreffect_default)); 2039 if (isSupported(colorEffect, mParameters.getSupportedColorEffects())) { 2040 mParameters.setColorEffect(colorEffect); 2041 } 2042 2043 // Set exposure compensation 2044 String exposure = mPreferences.getString( 2045 CameraSettings.KEY_EXPOSURE, 2046 getString(R.string.pref_exposure_default)); 2047 try { 2048 int value = Integer.parseInt(exposure); 2049 int max = mParameters.getMaxExposureCompensation(); 2050 int min = mParameters.getMinExposureCompensation(); 2051 if (value >= min && value <= max) { 2052 mParameters.setExposureCompensation(value); 2053 } else { 2054 Log.w(TAG, "invalid exposure range: " + exposure); 2055 } 2056 } catch (NumberFormatException e) { 2057 Log.w(TAG, "invalid exposure: " + exposure); 2058 } 2059 2060 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 2061 // Set flash mode. 2062 String flashMode = mPreferences.getString( 2063 CameraSettings.KEY_FLASH_MODE, 2064 getString(R.string.pref_camera_flashmode_default)); 2065 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 2066 if (isSupported(flashMode, supportedFlash)) { 2067 mParameters.setFlashMode(flashMode); 2068 } else { 2069 flashMode = mParameters.getFlashMode(); 2070 if (flashMode == null) { 2071 flashMode = getString( 2072 R.string.pref_camera_flashmode_no_flash); 2073 } 2074 } 2075 2076 // Set white balance parameter. 2077 String whiteBalance = mPreferences.getString( 2078 CameraSettings.KEY_WHITE_BALANCE, 2079 getString(R.string.pref_camera_whitebalance_default)); 2080 if (isSupported(whiteBalance, 2081 mParameters.getSupportedWhiteBalance())) { 2082 mParameters.setWhiteBalance(whiteBalance); 2083 } else { 2084 whiteBalance = mParameters.getWhiteBalance(); 2085 if (whiteBalance == null) { 2086 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 2087 } 2088 } 2089 2090 // Set focus mode. 2091 mFocusMode = mPreferences.getString( 2092 CameraSettings.KEY_FOCUS_MODE, 2093 getString(R.string.pref_camera_focusmode_default)); 2094 if (isSupported(mFocusMode, mParameters.getSupportedFocusModes())) { 2095 mParameters.setFocusMode(mFocusMode); 2096 } else { 2097 mFocusMode = mParameters.getFocusMode(); 2098 if (mFocusMode == null) { 2099 mFocusMode = Parameters.FOCUS_MODE_AUTO; 2100 } 2101 } 2102 } else { 2103 mFocusMode = mParameters.getFocusMode(); 2104 } 2105 } 2106 2107 // We separate the parameters into several subsets, so we can update only 2108 // the subsets actually need updating. The PREFERENCE set needs extra 2109 // locking because the preference can be changed from GLThread as well. 2110 private void setCameraParameters(int updateSet) { 2111 mParameters = mCameraDevice.getParameters(); 2112 2113 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 2114 updateCameraParametersInitialize(); 2115 } 2116 2117 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 2118 updateCameraParametersZoom(); 2119 } 2120 2121 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 2122 updateCameraParametersPreference(); 2123 } 2124 2125 mCameraDevice.setParameters(mParameters); 2126 } 2127 2128 // If the Camera is idle, update the parameters immediately, otherwise 2129 // accumulate them in mUpdateSet and update later. 2130 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 2131 mUpdateSet |= additionalUpdateSet; 2132 if (mCameraDevice == null) { 2133 // We will update all the parameters when we open the device, so 2134 // we don't need to do anything now. 2135 mUpdateSet = 0; 2136 return; 2137 } else if (isCameraIdle()) { 2138 setCameraParameters(mUpdateSet); 2139 updateSceneModeUI(); 2140 mUpdateSet = 0; 2141 } else { 2142 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 2143 mHandler.sendEmptyMessageDelayed( 2144 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 2145 } 2146 } 2147 } 2148 2149 private void gotoGallery() { 2150 MenuHelper.gotoCameraImageGallery(this); 2151 } 2152 2153 private void startReceivingLocationUpdates() { 2154 if (mLocationManager != null) { 2155 try { 2156 mLocationManager.requestLocationUpdates( 2157 LocationManager.NETWORK_PROVIDER, 2158 1000, 2159 0F, 2160 mLocationListeners[1]); 2161 } catch (SecurityException ex) { 2162 Log.i(TAG, "fail to request location update, ignore", ex); 2163 } catch (IllegalArgumentException ex) { 2164 Log.d(TAG, "provider does not exist " + ex.getMessage()); 2165 } 2166 try { 2167 mLocationManager.requestLocationUpdates( 2168 LocationManager.GPS_PROVIDER, 2169 1000, 2170 0F, 2171 mLocationListeners[0]); 2172 showGpsOnScreenIndicator(false); 2173 } catch (SecurityException ex) { 2174 Log.i(TAG, "fail to request location update, ignore", ex); 2175 } catch (IllegalArgumentException ex) { 2176 Log.d(TAG, "provider does not exist " + ex.getMessage()); 2177 } 2178 Log.d(TAG, "startReceivingLocationUpdates"); 2179 } 2180 } 2181 2182 private void stopReceivingLocationUpdates() { 2183 if (mLocationManager != null) { 2184 for (int i = 0; i < mLocationListeners.length; i++) { 2185 try { 2186 mLocationManager.removeUpdates(mLocationListeners[i]); 2187 } catch (Exception ex) { 2188 Log.i(TAG, "fail to remove location listners, ignore", ex); 2189 } 2190 } 2191 Log.d(TAG, "stopReceivingLocationUpdates"); 2192 } 2193 hideGpsOnScreenIndicator(); 2194 } 2195 2196 private Location getCurrentLocation() { 2197 // go in best to worst order 2198 for (int i = 0; i < mLocationListeners.length; i++) { 2199 Location l = mLocationListeners[i].current(); 2200 if (l != null) return l; 2201 } 2202 Log.d(TAG, "No location received yet."); 2203 return null; 2204 } 2205 2206 private boolean isCameraIdle() { 2207 return mCameraState == IDLE || mCameraState == FOCUS_SUCCESS || mCameraState == FOCUS_FAIL; 2208 } 2209 2210 private boolean isImageCaptureIntent() { 2211 String action = getIntent().getAction(); 2212 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 2213 } 2214 2215 private void setupCaptureParams() { 2216 Bundle myExtras = getIntent().getExtras(); 2217 if (myExtras != null) { 2218 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 2219 mCropValue = myExtras.getString("crop"); 2220 } 2221 } 2222 2223 private void showPostCaptureAlert() { 2224 if (mIsImageCaptureIntent) { 2225 if (mIndicatorWheel == null) { 2226 mShutterButton.setVisibility(View.INVISIBLE); 2227 } else { 2228 mShutterButton.setEnabled(false); 2229 } 2230 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2231 for (int id : pickIds) { 2232 View button = findViewById(id); 2233 ((View) button.getParent()).setVisibility(View.VISIBLE); 2234 } 2235 2236 // Remove the text of the cancel button 2237 View view = findViewById(R.id.btn_cancel); 2238 if (view instanceof Button) ((Button) view).setText(""); 2239 } 2240 } 2241 2242 private void hidePostCaptureAlert() { 2243 if (mIsImageCaptureIntent) { 2244 if (mIndicatorWheel == null) { 2245 mShutterButton.setVisibility(View.VISIBLE); 2246 } else { 2247 mShutterButton.setEnabled(true); 2248 } 2249 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2250 for (int id : pickIds) { 2251 View button = findViewById(id); 2252 ((View) button.getParent()).setVisibility(View.GONE); 2253 } 2254 enableCameraControls(true); 2255 2256 // Restore the text of the cancel button 2257 View view = findViewById(R.id.btn_cancel); 2258 if (view instanceof Button) { 2259 ((Button) view).setText(R.string.review_cancel); 2260 } 2261 } 2262 } 2263 2264 @Override 2265 public boolean onPrepareOptionsMenu(Menu menu) { 2266 super.onPrepareOptionsMenu(menu); 2267 // Only show the menu when camera is idle. 2268 for (int i = 0; i < menu.size(); i++) { 2269 menu.getItem(i).setVisible(isCameraIdle()); 2270 } 2271 2272 return true; 2273 } 2274 2275 @Override 2276 public boolean onCreateOptionsMenu(Menu menu) { 2277 super.onCreateOptionsMenu(menu); 2278 2279 if (mIsImageCaptureIntent) { 2280 // No options menu for attach mode. 2281 return false; 2282 } else { 2283 addBaseMenuItems(menu); 2284 } 2285 return true; 2286 } 2287 2288 private void addBaseMenuItems(Menu menu) { 2289 MenuHelper.addSwitchModeMenuItem(menu, true, new Runnable() { 2290 public void run() { 2291 switchToVideoMode(); 2292 } 2293 }); 2294 MenuItem gallery = menu.add(Menu.NONE, Menu.NONE, 2295 MenuHelper.POSITION_GOTO_GALLERY, 2296 R.string.camera_gallery_photos_text) 2297 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2298 public boolean onMenuItemClick(MenuItem item) { 2299 gotoGallery(); 2300 return true; 2301 } 2302 }); 2303 gallery.setIcon(android.R.drawable.ic_menu_gallery); 2304 mGalleryItems.add(gallery); 2305 2306 if (mNumberOfCameras > 1) { 2307 menu.add(Menu.NONE, Menu.NONE, 2308 MenuHelper.POSITION_SWITCH_CAMERA_ID, 2309 R.string.switch_camera_id) 2310 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2311 public boolean onMenuItemClick(MenuItem item) { 2312 CameraSettings.writePreferredCameraId(mPreferences, 2313 ((mCameraId == mFrontCameraId) 2314 ? mBackCameraId : mFrontCameraId)); 2315 onSharedPreferenceChanged(); 2316 return true; 2317 } 2318 }).setIcon(android.R.drawable.ic_menu_camera); 2319 } 2320 } 2321 2322 private boolean switchToVideoMode() { 2323 if (isFinishing() || !isCameraIdle()) return false; 2324 MenuHelper.gotoVideoMode(Camera.this); 2325 mHandler.removeMessages(FIRST_TIME_INIT); 2326 finish(); 2327 return true; 2328 } 2329 2330 public boolean onSwitchChanged(Switcher source, boolean onOff) { 2331 if (onOff == SWITCH_VIDEO) { 2332 return switchToVideoMode(); 2333 } else { 2334 return true; 2335 } 2336 } 2337 2338 private void onSharedPreferenceChanged() { 2339 // ignore the events after "onPause()" 2340 if (mPausing) return; 2341 2342 boolean recordLocation; 2343 2344 recordLocation = RecordLocationPreference.get( 2345 mPreferences, getContentResolver()); 2346 2347 if (mRecordLocation != recordLocation) { 2348 mRecordLocation = recordLocation; 2349 if (mRecordLocation) { 2350 startReceivingLocationUpdates(); 2351 } else { 2352 stopReceivingLocationUpdates(); 2353 } 2354 } 2355 int cameraId = CameraSettings.readPreferredCameraId(mPreferences); 2356 if (mCameraId != cameraId) { 2357 // Restart the activity to have a crossfade animation. 2358 // TODO: Use SurfaceTexture to implement a better and faster 2359 // animation. 2360 if (mIsImageCaptureIntent) { 2361 // If the intent is camera capture, stay in camera capture mode. 2362 MenuHelper.gotoCameraMode(this, getIntent()); 2363 } else { 2364 MenuHelper.gotoCameraMode(this); 2365 } 2366 2367 finish(); 2368 } else { 2369 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 2370 } 2371 } 2372 2373 @Override 2374 public void onUserInteraction() { 2375 super.onUserInteraction(); 2376 keepScreenOnAwhile(); 2377 } 2378 2379 private void resetScreenOn() { 2380 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2381 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2382 } 2383 2384 private void keepScreenOnAwhile() { 2385 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2386 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2387 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2388 } 2389 2390 private class MyHeadUpDisplayListener implements HeadUpDisplay.Listener { 2391 2392 public void onSharedPreferenceChanged() { 2393 Camera.this.onSharedPreferenceChanged(); 2394 } 2395 2396 public void onRestorePreferencesClicked() { 2397 Camera.this.onRestorePreferencesClicked(); 2398 } 2399 2400 public void onPopupWindowVisibilityChanged(int visibility) { 2401 } 2402 } 2403 2404 protected void onRestorePreferencesClicked() { 2405 if (mPausing) return; 2406 Runnable runnable = new Runnable() { 2407 public void run() { 2408 restorePreferences(); 2409 } 2410 }; 2411 MenuHelper.confirmAction(this, 2412 getString(R.string.confirm_restore_title), 2413 getString(R.string.confirm_restore_message), 2414 runnable); 2415 } 2416 2417 private void restorePreferences() { 2418 // Reset the zoom. Zoom value is not stored in preference. 2419 if (mParameters.isZoomSupported()) { 2420 mZoomValue = 0; 2421 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 2422 if (mZoomPicker != null) mZoomPicker.setZoomIndex(0); 2423 } 2424 2425 if (mHeadUpDisplay != null) { 2426 mHeadUpDisplay.restorePreferences(mParameters); 2427 } 2428 2429 if (mIndicatorWheel != null) { 2430 mIndicatorWheel.dismissSettingPopup(); 2431 CameraSettings.restorePreferences(Camera.this, mPreferences, 2432 mParameters); 2433 initializeIndicatorWheel(); 2434 onSharedPreferenceChanged(); 2435 } 2436 } 2437 2438 protected void onOverriddenPreferencesClicked() { 2439 if (mPausing) return; 2440 if (mNotSelectableToast == null) { 2441 String str = getResources().getString(R.string.not_selectable_in_scene_mode); 2442 mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT); 2443 } 2444 mNotSelectableToast.show(); 2445 } 2446 2447 private void onShareButtonClicked() { 2448 if (mPausing) return; 2449 2450 // Share the last captured picture. 2451 if (mThumbnail != null) { 2452 mReviewImage.setImageBitmap(mThumbnail.getBitmap()); 2453 mReviewImage.setVisibility(View.VISIBLE); 2454 2455 Intent intent = new Intent(Intent.ACTION_SEND); 2456 intent.setType("image/jpeg"); 2457 intent.putExtra(Intent.EXTRA_STREAM, mThumbnail.getUri()); 2458 startActivity(Intent.createChooser(intent, getString(R.string.share_picture_via))); 2459 } else { // No last picture 2460 if (mNoShareToast == null) { 2461 mNoShareToast = Toast.makeText(this, 2462 getResources().getString(R.string.no_picture_to_share), Toast.LENGTH_SHORT); 2463 } 2464 mNoShareToast.show(); 2465 } 2466 } 2467 2468 private class MyIndicatorWheelListener implements IndicatorWheel.Listener { 2469 public void onSharedPreferenceChanged() { 2470 Camera.this.onSharedPreferenceChanged(); 2471 } 2472 2473 public void onRestorePreferencesClicked() { 2474 Camera.this.onRestorePreferencesClicked(); 2475 } 2476 2477 public void onOverriddenPreferencesClicked() { 2478 Camera.this.onOverriddenPreferencesClicked(); 2479 } 2480 2481 public void onShareButtonClicked() { 2482 Camera.this.onShareButtonClicked(); 2483 } 2484 } 2485 2486 private class MyCameraPickerListener implements CameraPicker.Listener { 2487 public void onSharedPreferenceChanged() { 2488 Camera.this.onSharedPreferenceChanged(); 2489 } 2490 } 2491} 2492