Camera.java revision f5e80a8a5670798d52afe08e0c15aa4448d33316
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.graphics.Rect; 43import android.hardware.Camera.Area; 44import android.hardware.Camera.CameraInfo; 45import android.hardware.Camera.Parameters; 46import android.hardware.Camera.PictureCallback; 47import android.hardware.Camera.Size; 48import android.location.Location; 49import android.location.LocationManager; 50import android.location.LocationProvider; 51import android.media.AudioManager; 52import android.media.ToneGenerator; 53import android.net.Uri; 54import android.os.Build; 55import android.os.Bundle; 56import android.os.Handler; 57import android.os.Looper; 58import android.os.Message; 59import android.os.MessageQueue; 60import android.os.SystemClock; 61import android.provider.MediaStore; 62import android.provider.Settings; 63import android.provider.MediaStore.Images.ImageColumns; 64import android.provider.MediaStore.Images.Media; 65import android.util.Log; 66import android.view.GestureDetector; 67import android.view.KeyEvent; 68import android.view.LayoutInflater; 69import android.view.Menu; 70import android.view.MenuItem; 71import android.view.MotionEvent; 72import android.view.OrientationEventListener; 73import android.view.SurfaceHolder; 74import android.view.SurfaceView; 75import android.view.View; 76import android.view.ViewGroup; 77import android.view.ViewStub; 78import android.view.Window; 79import android.view.WindowManager; 80import android.view.MenuItem.OnMenuItemClickListener; 81import android.widget.Button; 82import android.widget.RelativeLayout; 83import android.widget.Toast; 84 85import java.io.File; 86import java.io.FileNotFoundException; 87import java.io.FileOutputStream; 88import java.io.IOException; 89import java.io.OutputStream; 90import java.text.SimpleDateFormat; 91import java.util.ArrayList; 92import java.util.Collections; 93import java.util.Date; 94import java.util.HashMap; 95import java.util.List; 96 97/** The Camera activity which can preview and take pictures. */ 98public class Camera extends ActivityBase implements View.OnClickListener, 99 View.OnTouchListener, ShutterButton.OnShutterButtonListener, 100 SurfaceHolder.Callback, Switcher.OnSwitchListener { 101 102 private static final String TAG = "camera"; 103 104 private static final String LAST_THUMB_PATH = 105 Storage.THUMBNAILS + "/image_last_thumb"; 106 107 private static final int CROP_MSG = 1; 108 private static final int FIRST_TIME_INIT = 2; 109 private static final int RESTART_PREVIEW = 3; 110 private static final int CLEAR_SCREEN_DELAY = 4; 111 private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 5; 112 private static final int CHECK_DISPLAY_ROTATION = 6; 113 private static final int CANCEL_AUTOFOCUS = 7; 114 115 // The subset of parameters we need to update in setCameraParameters(). 116 private static final int UPDATE_PARAM_INITIALIZE = 1; 117 private static final int UPDATE_PARAM_ZOOM = 2; 118 private static final int UPDATE_PARAM_PREFERENCE = 4; 119 private static final int UPDATE_PARAM_ALL = -1; 120 121 // When setCameraParametersWhenIdle() is called, we accumulate the subsets 122 // needed to be updated in mUpdateSet. 123 private int mUpdateSet; 124 125 // The brightness settings used when it is set to automatic in the system. 126 // The reason why it is set to 0.7 is just because 1.0 is too bright. 127 private static final float DEFAULT_CAMERA_BRIGHTNESS = 0.7f; 128 129 private static final int SCREEN_DELAY = 2 * 60 * 1000; 130 private static final int FOCUS_BEEP_VOLUME = 100; 131 132 private static final int ZOOM_STOPPED = 0; 133 private static final int ZOOM_START = 1; 134 private static final int ZOOM_STOPPING = 2; 135 136 private int mZoomState = ZOOM_STOPPED; 137 private boolean mSmoothZoomSupported = false; 138 private int mZoomValue; // The current zoom value. 139 private int mZoomMax; 140 private int mTargetZoomValue; 141 private ZoomPicker mZoomPicker; 142 143 private Parameters mParameters; 144 private Parameters mInitialParams; 145 146 private MyOrientationEventListener mOrientationListener; 147 // The device orientation in degrees. Default is unknown. 148 private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 149 // The orientation compensation for icons and thumbnails. 150 private int mOrientationCompensation = 0; 151 private ComboPreferences mPreferences; 152 153 private static final boolean SWITCH_CAMERA = true; 154 private static final boolean SWITCH_VIDEO = false; 155 156 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 ToneGenerator mFocusToneGenerator; 164 private GestureDetector mPopupGestureDetector; 165 private SwitcherSet mSwitcher; 166 private boolean mStartPreviewFail = false; 167 168 private View mPreviewFrame; // Preview frame area. 169 private View mPreviewBorder; 170 private FocusRectangle mFocusRectangle; 171 private List<Area> mFocusArea; // focus area in driver format 172 173 private GLRootView mGLRootView; 174 175 // The last captured picture. 176 private RotateImageView mThumbnailButton; 177 178 // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. 179 private String mCropValue; 180 private Uri mSaveUri; 181 182 // GPS on-screen indicator 183 private View mGpsNoSignalView; 184 private View mGpsHasSignalView; 185 186 // Front/Back camera pciker for xlarge layout 187 private CameraPicker mCameraPicker; 188 189 /** 190 * An unpublished intent flag requesting to return as soon as capturing 191 * is completed. 192 * 193 * TODO: consider publishing by moving into MediaStore. 194 */ 195 private final static String EXTRA_QUICK_CAPTURE = 196 "android.intent.extra.quickCapture"; 197 198 // The display rotation in degrees. This is only valid when mCameraState is 199 // not PREVIEW_STOPPED. 200 private int mDisplayRotation; 201 private boolean mPausing; 202 private boolean mFirstTimeInitialized; 203 private boolean mIsImageCaptureIntent; 204 private boolean mRecordLocation; 205 206 private static final int PREVIEW_STOPPED = 0; 207 private static final int IDLE = 1; // preview is active 208 private static final int FOCUSING = 2; 209 private static final int FOCUSING_SNAP_ON_FINISH = 3; 210 private static final int FOCUS_SUCCESS = 4; 211 private static final int FOCUS_FAIL = 5; 212 private static final int SNAPSHOT_IN_PROGRESS = 6; 213 private int mCameraState = PREVIEW_STOPPED; 214 215 private ContentResolver mContentResolver; 216 private boolean mDidRegister = false; 217 218 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 219 220 private LocationManager mLocationManager = null; 221 222 private final ShutterCallback mShutterCallback = new ShutterCallback(); 223 private final PostViewPictureCallback mPostViewPictureCallback = 224 new PostViewPictureCallback(); 225 private final RawPictureCallback mRawPictureCallback = 226 new RawPictureCallback(); 227 private final AutoFocusCallback mAutoFocusCallback = 228 new AutoFocusCallback(); 229 private final ZoomListener mZoomListener = new ZoomListener(); 230 private final CameraErrorCallback mErrorCallback = new CameraErrorCallback(); 231 232 private long mFocusStartTime; 233 private long mFocusCallbackTime; 234 private long mCaptureStartTime; 235 private long mShutterCallbackTime; 236 private long mPostViewPictureCallbackTime; 237 private long mRawPictureCallbackTime; 238 private long mJpegPictureCallbackTime; 239 private long mOnResumeTime; 240 private long mPicturesRemaining; 241 private byte[] mJpegImageData; 242 243 // These latency time are for the CameraLatency test. 244 public long mAutoFocusTime; 245 public long mShutterLag; 246 public long mShutterToPictureDisplayedTime; 247 public long mPictureDisplayedToJpegCallbackTime; 248 public long mJpegCallbackFinishTime; 249 250 // Focus mode. Options are pref_camera_focusmode_entryvalues. 251 private String mFocusMode; 252 private String mSceneMode; 253 private Toast mNotSelectableToast; 254 private Toast mNoShareToast; 255 256 private final Handler mHandler = new MainHandler(); 257 // xlarge devices use indicator wheel. Other devices use head-up display. 258 private CameraHeadUpDisplay mHeadUpDisplay; 259 private IndicatorWheel mIndicatorWheel; 260 private PreferenceGroup mPreferenceGroup; 261 262 // multiple cameras support 263 private int mNumberOfCameras; 264 private int mCameraId; 265 private int mFrontCameraId; 266 private int mBackCameraId; 267 268 private boolean mQuickCapture; 269 270 /** 271 * This Handler is used to post message back onto the main thread of the 272 * application 273 */ 274 private class MainHandler extends Handler { 275 @Override 276 public void handleMessage(Message msg) { 277 switch (msg.what) { 278 case RESTART_PREVIEW: { 279 restartPreview(); 280 if (mJpegPictureCallbackTime != 0) { 281 long now = System.currentTimeMillis(); 282 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 283 Log.v(TAG, "mJpegCallbackFinishTime = " 284 + mJpegCallbackFinishTime + "ms"); 285 mJpegPictureCallbackTime = 0; 286 } 287 break; 288 } 289 290 case CLEAR_SCREEN_DELAY: { 291 getWindow().clearFlags( 292 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 293 break; 294 } 295 296 case FIRST_TIME_INIT: { 297 initializeFirstTime(); 298 break; 299 } 300 301 case SET_CAMERA_PARAMETERS_WHEN_IDLE: { 302 setCameraParametersWhenIdle(0); 303 break; 304 } 305 306 case CHECK_DISPLAY_ROTATION: { 307 // Restart the preview if display rotation has changed. 308 // Sometimes this happens when the device is held upside 309 // down and camera app is opened. Rotation animation will 310 // take some time and the rotation value we have got may be 311 // wrong. Framework does not have a callback for this now. 312 if (Util.getDisplayRotation(Camera.this) != mDisplayRotation 313 && isCameraIdle()) { 314 restartPreview(); 315 } 316 if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) { 317 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 318 } 319 break; 320 } 321 322 case CANCEL_AUTOFOCUS: { 323 cancelAutoFocus(); 324 break; 325 } 326 } 327 } 328 } 329 330 private void resetExposureCompensation() { 331 String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, 332 CameraSettings.EXPOSURE_DEFAULT_VALUE); 333 if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { 334 Editor editor = mPreferences.edit(); 335 editor.putString(CameraSettings.KEY_EXPOSURE, "0"); 336 editor.apply(); 337 if (mHeadUpDisplay != null) { 338 mHeadUpDisplay.reloadPreferences(); 339 } 340 if (mIndicatorWheel != null) { 341 mIndicatorWheel.reloadPreferences(); 342 } 343 } 344 } 345 346 private void keepMediaProviderInstance() { 347 // We want to keep a reference to MediaProvider in camera's lifecycle. 348 // TODO: Utilize mMediaProviderClient instance to replace 349 // ContentResolver calls. 350 if (mMediaProviderClient == null) { 351 mMediaProviderClient = getContentResolver() 352 .acquireContentProviderClient(MediaStore.AUTHORITY); 353 } 354 } 355 356 // Snapshots can only be taken after this is called. It should be called 357 // once only. We could have done these things in onCreate() but we want to 358 // make preview screen appear as soon as possible. 359 private void initializeFirstTime() { 360 if (mFirstTimeInitialized) return; 361 362 // Create orientation listenter. This should be done first because it 363 // takes some time to get first orientation. 364 mOrientationListener = new MyOrientationEventListener(Camera.this); 365 mOrientationListener.enable(); 366 367 // Initialize location sevice. 368 mLocationManager = (LocationManager) 369 getSystemService(Context.LOCATION_SERVICE); 370 mRecordLocation = RecordLocationPreference.get( 371 mPreferences, getContentResolver()); 372 initGpsOnScreenIndicator(); 373 if (mRecordLocation) startReceivingLocationUpdates(); 374 375 keepMediaProviderInstance(); 376 checkStorage(); 377 378 // Initialize last picture button. 379 mContentResolver = getContentResolver(); 380 if (!mIsImageCaptureIntent) { 381 findViewById(R.id.camera_switch).setOnClickListener(this); 382 initThumbnailButton(); 383 } 384 385 // Initialize shutter button. 386 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 387 mShutterButton.setOnShutterButtonListener(this); 388 mShutterButton.setVisibility(View.VISIBLE); 389 390 // Initialize focus UI. 391 mPreviewFrame = findViewById(R.id.camera_preview); 392 mPreviewFrame.setOnTouchListener(this); 393 mPreviewBorder = (View) findViewById(R.id.preview_border); 394 // Set the length of focus rectangle according to preview frame size. 395 int len = Math.min(mPreviewFrame.getWidth(), mPreviewFrame.getHeight()) / 4; 396 ViewGroup.LayoutParams layout = mFocusRectangle.getLayoutParams(); 397 layout.width = len; 398 layout.height = len; 399 400 initializeScreenBrightness(); 401 installIntentFilter(); 402 initializeFocusTone(); 403 initializeZoom(); 404 // xlarge devices use indicator wheel. Other devices use head-up display. 405 if (mIndicatorWheel == null) { 406 mHeadUpDisplay = new CameraHeadUpDisplay(this); 407 mHeadUpDisplay.setListener(new MyHeadUpDisplayListener()); 408 initializeHeadUpDisplay(); 409 } 410 mFirstTimeInitialized = true; 411 changeHeadUpDisplayState(); 412 addIdleHandler(); 413 } 414 415 private void addIdleHandler() { 416 MessageQueue queue = Looper.myQueue(); 417 queue.addIdleHandler(new MessageQueue.IdleHandler() { 418 public boolean queueIdle() { 419 Storage.ensureOSXCompatible(); 420 return false; 421 } 422 }); 423 } 424 425 private void initThumbnailButton() { 426 mThumbnailButton = 427 (RotateImageView) findViewById(R.id.review_thumbnail); 428 if (mThumbnailButton != null) { 429 mThumbnailButton.setOnClickListener(this); 430 mThumbnailButton.loadData(LAST_THUMB_PATH); 431 updateThumbnailButton(); 432 } 433 } 434 435 private void updateThumbnailButton() { 436 if (mThumbnailButton == null) return; 437 // Update last image if URI is invalid and the storage is ready. 438 if (!mThumbnailButton.isUriValid() && mPicturesRemaining >= 0) { 439 Storage.Thumbnail thumbnail = 440 Storage.getLastImageThumbnail(mContentResolver); 441 if (thumbnail != null) { 442 mThumbnailButton.setData(thumbnail.getOriginalUri(), 443 thumbnail.getBitmap(mContentResolver)); 444 } else { 445 mThumbnailButton.setData(null, null); 446 } 447 } 448 mThumbnailButton.setVisibility( 449 (mThumbnailButton.getUri() != null) ? View.VISIBLE : View.GONE); 450 } 451 452 // If the activity is paused and resumed, this method will be called in 453 // onResume. 454 private void initializeSecondTime() { 455 // Start orientation listener as soon as possible because it takes 456 // some time to get first orientation. 457 mOrientationListener.enable(); 458 459 // Start location update if needed. 460 mRecordLocation = RecordLocationPreference.get( 461 mPreferences, getContentResolver()); 462 if (mRecordLocation) startReceivingLocationUpdates(); 463 464 installIntentFilter(); 465 initializeFocusTone(); 466 initializeZoom(); 467 changeHeadUpDisplayState(); 468 469 keepMediaProviderInstance(); 470 checkStorage(); 471 472 if (!mIsImageCaptureIntent) { 473 updateThumbnailButton(); 474 } 475 } 476 477 private void initializeZoom() { 478 if (!mParameters.isZoomSupported()) return; 479 480 mZoomMax = mParameters.getMaxZoom(); 481 mSmoothZoomSupported = mParameters.isSmoothZoomSupported(); 482 if (mZoomPicker != null) { 483 mZoomPicker.setZoomRatios(getZoomRatios()); 484 mZoomPicker.setZoomIndex(mParameters.getZoom()); 485 mZoomPicker.setSmoothZoomSupported(mSmoothZoomSupported); 486 mZoomPicker.setOnZoomChangeListener( 487 new ZoomPicker.OnZoomChangedListener() { 488 // only for immediate zoom 489 public void onZoomValueChanged(int index) { 490 Camera.this.onZoomValueChanged(index); 491 } 492 493 // only for smooth zoom 494 public void onZoomStateChanged(int state) { 495 if (mPausing) return; 496 497 Log.v(TAG, "zoom picker state=" + state); 498 if (state == mZoomPicker.ZOOM_IN) { 499 Camera.this.onZoomValueChanged(mZoomMax); 500 } else if (state == mZoomPicker.ZOOM_OUT){ 501 Camera.this.onZoomValueChanged(0); 502 } else { 503 mTargetZoomValue = -1; 504 if (mZoomState == ZOOM_START) { 505 mZoomState = ZOOM_STOPPING; 506 mCameraDevice.stopSmoothZoom(); 507 } 508 } 509 } 510 }); 511 } 512 513 mCameraDevice.setZoomChangeListener(mZoomListener); 514 } 515 516 private void onZoomValueChanged(int index) { 517 // Not useful to change zoom value when the activity is paused. 518 if (mPausing) return; 519 520 if (mSmoothZoomSupported) { 521 if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { 522 mTargetZoomValue = index; 523 if (mZoomState == ZOOM_START) { 524 mZoomState = ZOOM_STOPPING; 525 mCameraDevice.stopSmoothZoom(); 526 } 527 } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { 528 mTargetZoomValue = index; 529 mCameraDevice.startSmoothZoom(index); 530 mZoomState = ZOOM_START; 531 } 532 } else { 533 mZoomValue = index; 534 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 535 } 536 } 537 538 private float[] getZoomRatios() { 539 if(!mParameters.isZoomSupported()) return null; 540 List<Integer> zoomRatios = mParameters.getZoomRatios(); 541 float result[] = new float[zoomRatios.size()]; 542 for (int i = 0, n = result.length; i < n; ++i) { 543 result[i] = (float) zoomRatios.get(i) / 100f; 544 } 545 return result; 546 } 547 548 private class PopupGestureListener 549 extends GestureDetector.SimpleOnGestureListener { 550 public boolean onDown(MotionEvent e) { 551 // Check if the popup window is visible. 552 View popup = mIndicatorWheel.getActivePopupWindow(); 553 if (popup == null) return false; 554 555 556 // Let popup window, indicator wheel or preview frame handle the 557 // event by themselves. Dismiss the popup window if users touch on 558 // other areas. 559 if (!Util.pointInView(e.getX(), e.getY(), popup) 560 && !Util.pointInView(e.getX(), e.getY(), mIndicatorWheel) 561 && !Util.pointInView(e.getX(), e.getY(), mPreviewFrame)) { 562 mIndicatorWheel.dismissSettingPopup(); 563 // Let event fall through. 564 } 565 return false; 566 } 567 } 568 569 @Override 570 public boolean dispatchTouchEvent(MotionEvent m) { 571 // Check if the popup window should be dismissed first. 572 if (mPopupGestureDetector != null && mPopupGestureDetector.onTouchEvent(m)) { 573 return true; 574 } 575 576 return super.dispatchTouchEvent(m); 577 } 578 579 LocationListener [] mLocationListeners = new LocationListener[] { 580 new LocationListener(LocationManager.GPS_PROVIDER), 581 new LocationListener(LocationManager.NETWORK_PROVIDER) 582 }; 583 584 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 585 @Override 586 public void onReceive(Context context, Intent intent) { 587 String action = intent.getAction(); 588 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 589 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 590 || action.equals(Intent.ACTION_MEDIA_CHECKING)) { 591 checkStorage(); 592 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 593 checkStorage(); 594 if (!mIsImageCaptureIntent) { 595 updateThumbnailButton(); 596 } 597 } 598 } 599 }; 600 601 private void initializeCameraPicker() { 602 mCameraPicker = (CameraPicker) findViewById(R.id.camera_picker); 603 if (mCameraPicker != null) { 604 mCameraPicker.setImageResource(R.drawable.camera_toggle); 605 ListPreference pref = mPreferenceGroup.findPreference( 606 CameraSettings.KEY_CAMERA_ID); 607 if (pref != null) { 608 mCameraPicker.initialize(pref); 609 mCameraPicker.setListener(new MyCameraPickerListener()); 610 } 611 } 612 } 613 614 private void initGpsOnScreenIndicator() { 615 mGpsNoSignalView = findViewById(R.id.onscreen_gps_indicator_no_signal); 616 mGpsHasSignalView = findViewById(R.id.onscreen_gps_indicator_on); 617 } 618 619 private void showGpsOnScreenIndicator(boolean hasSignal) { 620 if (hasSignal) { 621 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.INVISIBLE); 622 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.VISIBLE); 623 } else { 624 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.VISIBLE); 625 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.INVISIBLE); 626 } 627 } 628 629 private void hideGpsOnScreenIndicator() { 630 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.INVISIBLE); 631 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.INVISIBLE); 632 } 633 634 private class LocationListener 635 implements android.location.LocationListener { 636 Location mLastLocation; 637 boolean mValid = false; 638 String mProvider; 639 640 public LocationListener(String provider) { 641 mProvider = provider; 642 mLastLocation = new Location(mProvider); 643 } 644 645 public void onLocationChanged(Location newLocation) { 646 if (newLocation.getLatitude() == 0.0 647 && newLocation.getLongitude() == 0.0) { 648 // Hack to filter out 0.0,0.0 locations 649 return; 650 } 651 // If GPS is available before start camera, we won't get status 652 // update so update GPS indicator when we receive data. 653 if (mRecordLocation 654 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 655 if (mHeadUpDisplay != null) { 656 mHeadUpDisplay.setGpsHasSignal(true); 657 } 658 showGpsOnScreenIndicator(true); 659 } 660 if (!mValid) { 661 Log.d(TAG, "Got first location."); 662 } 663 mLastLocation.set(newLocation); 664 mValid = true; 665 } 666 667 public void onProviderEnabled(String provider) { 668 } 669 670 public void onProviderDisabled(String provider) { 671 mValid = false; 672 } 673 674 public void onStatusChanged( 675 String provider, int status, Bundle extras) { 676 switch(status) { 677 case LocationProvider.OUT_OF_SERVICE: 678 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 679 mValid = false; 680 if (mRecordLocation && 681 LocationManager.GPS_PROVIDER.equals(provider)) { 682 if (mHeadUpDisplay != null) { 683 mHeadUpDisplay.setGpsHasSignal(false); 684 } 685 showGpsOnScreenIndicator(false); 686 } 687 break; 688 } 689 } 690 } 691 692 public Location current() { 693 return mValid ? mLastLocation : null; 694 } 695 } 696 697 private final class ShutterCallback 698 implements android.hardware.Camera.ShutterCallback { 699 public void onShutter() { 700 mShutterCallbackTime = System.currentTimeMillis(); 701 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 702 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 703 updateFocusUI(); 704 } 705 } 706 707 private final class PostViewPictureCallback implements PictureCallback { 708 public void onPictureTaken( 709 byte [] data, android.hardware.Camera camera) { 710 mPostViewPictureCallbackTime = System.currentTimeMillis(); 711 Log.v(TAG, "mShutterToPostViewCallbackTime = " 712 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 713 + "ms"); 714 } 715 } 716 717 private final class RawPictureCallback implements PictureCallback { 718 public void onPictureTaken( 719 byte [] rawData, android.hardware.Camera camera) { 720 mRawPictureCallbackTime = System.currentTimeMillis(); 721 Log.v(TAG, "mShutterToRawCallbackTime = " 722 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 723 } 724 } 725 726 private final class JpegPictureCallback implements PictureCallback { 727 Location mLocation; 728 729 public JpegPictureCallback(Location loc) { 730 mLocation = loc; 731 } 732 733 public void onPictureTaken( 734 final byte [] jpegData, final android.hardware.Camera camera) { 735 if (mPausing) { 736 return; 737 } 738 739 mJpegPictureCallbackTime = System.currentTimeMillis(); 740 // If postview callback has arrived, the captured image is displayed 741 // in postview callback. If not, the captured image is displayed in 742 // raw picture callback. 743 if (mPostViewPictureCallbackTime != 0) { 744 mShutterToPictureDisplayedTime = 745 mPostViewPictureCallbackTime - mShutterCallbackTime; 746 mPictureDisplayedToJpegCallbackTime = 747 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 748 } else { 749 mShutterToPictureDisplayedTime = 750 mRawPictureCallbackTime - mShutterCallbackTime; 751 mPictureDisplayedToJpegCallbackTime = 752 mJpegPictureCallbackTime - mRawPictureCallbackTime; 753 } 754 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 755 + mPictureDisplayedToJpegCallbackTime + "ms"); 756 757 if (!mIsImageCaptureIntent) { 758 enableCameraControls(true); 759 760 // We want to show the taken picture for a while, so we wait 761 // for at least 1.2 second before restarting the preview. 762 long delay = 1200 - mPictureDisplayedToJpegCallbackTime; 763 if (delay < 0) { 764 restartPreview(); 765 } else { 766 mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay); 767 } 768 } 769 storeImage(jpegData, camera, mLocation); 770 771 // Check this in advance of each shot so we don't add to shutter 772 // latency. It's true that someone else could write to the SD card in 773 // the mean time and fill it, but that could have happened between the 774 // shutter press and saving the JPEG too. 775 checkStorage(); 776 777 if (!mHandler.hasMessages(RESTART_PREVIEW)) { 778 long now = System.currentTimeMillis(); 779 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 780 Log.v(TAG, "mJpegCallbackFinishTime = " 781 + mJpegCallbackFinishTime + "ms"); 782 mJpegPictureCallbackTime = 0; 783 } 784 } 785 } 786 787 private final class AutoFocusCallback 788 implements android.hardware.Camera.AutoFocusCallback { 789 public void onAutoFocus( 790 boolean focused, android.hardware.Camera camera) { 791 mFocusCallbackTime = System.currentTimeMillis(); 792 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 793 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 794 if (mCameraState == FOCUSING_SNAP_ON_FINISH) { 795 // Take the picture no matter focus succeeds or fails. No need 796 // to play the AF sound if we're about to play the shutter 797 // sound. 798 if (focused) { 799 mCameraState = FOCUS_SUCCESS; 800 } else { 801 mCameraState = FOCUS_FAIL; 802 } 803 updateFocusUI(); 804 capture(); 805 } else if (mCameraState == FOCUSING) { 806 // This happens when (1) user is half-pressing the focus key or 807 // (2) touch focus is triggered. Play the focus tone. Do not 808 // take the picture now. 809 if (focused) { 810 mCameraState = FOCUS_SUCCESS; 811 if (mFocusToneGenerator != null) { 812 mFocusToneGenerator.startTone(ToneGenerator.TONE_PROP_BEEP2); 813 } 814 } else { 815 mCameraState = FOCUS_FAIL; 816 } 817 updateFocusUI(); 818 enableCameraControls(true); 819 // If this is triggered by touch focus, cancel focus after a 820 // while. 821 if (mFocusArea != null) { 822 mHandler.sendEmptyMessageDelayed(CANCEL_AUTOFOCUS, 3000); 823 } 824 } else if (mCameraState == IDLE) { 825 // User has released the focus key before focus completes. 826 // Do nothing. 827 } 828 829 } 830 } 831 832 private final class ZoomListener 833 implements android.hardware.Camera.OnZoomChangeListener { 834 public void onZoomChange( 835 int value, boolean stopped, android.hardware.Camera camera) { 836 Log.v(TAG, "Zoom changed: value=" + value + ". stopped="+ stopped); 837 mZoomValue = value; 838 839 // Update the UI when we get zoom value. 840 if (mZoomPicker != null) mZoomPicker.setZoomIndex(value); 841 842 // Keep mParameters up to date. We do not getParameter again in 843 // takePicture. If we do not do this, wrong zoom value will be set. 844 mParameters.setZoom(value); 845 846 if (stopped && mZoomState != ZOOM_STOPPED) { 847 if (mTargetZoomValue != -1 && value != mTargetZoomValue) { 848 mCameraDevice.startSmoothZoom(mTargetZoomValue); 849 mZoomState = ZOOM_START; 850 } else { 851 mZoomState = ZOOM_STOPPED; 852 } 853 } 854 } 855 } 856 857 public void storeImage(final byte[] data, 858 android.hardware.Camera camera, Location loc) { 859 if (!mIsImageCaptureIntent) { 860 long dateTaken = System.currentTimeMillis(); 861 String title = createName(dateTaken); 862 863 Storage.Thumbnail thumbnail = Storage.addImage( 864 mContentResolver, title, dateTaken, loc, data); 865 866 if (thumbnail != null && mThumbnailButton != null) { 867 mThumbnailButton.setData(thumbnail.getOriginalUri(), 868 thumbnail.getBitmap(mContentResolver)); 869 mThumbnailButton.setVisibility(View.VISIBLE); 870 871 sendBroadcast(new Intent("com.android.camera.NEW_PICTURE", 872 thumbnail.getOriginalUri())); 873 } 874 } else { 875 mJpegImageData = data; 876 if (!mQuickCapture) { 877 showPostCaptureAlert(); 878 } else { 879 doAttach(); 880 } 881 } 882 } 883 884 private void capture() { 885 // If we are already in the middle of taking a snapshot then ignore. 886 if (mPausing || mCameraState == SNAPSHOT_IN_PROGRESS || mCameraDevice == null) { 887 return; 888 } 889 mCaptureStartTime = System.currentTimeMillis(); 890 mPostViewPictureCallbackTime = 0; 891 enableCameraControls(false); 892 mJpegImageData = null; 893 894 // See android.hardware.Camera.Parameters.setRotation for 895 // documentation. 896 int rotation = 0; 897 if (mOrientation != OrientationEventListener.ORIENTATION_UNKNOWN) { 898 CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; 899 if (info.facing == CameraInfo.CAMERA_FACING_FRONT) { 900 rotation = (info.orientation - mOrientation + 360) % 360; 901 } else { // back-facing camera 902 rotation = (info.orientation + mOrientation) % 360; 903 } 904 } 905 mParameters.setRotation(rotation); 906 907 // Clear previous GPS location from the parameters. 908 mParameters.removeGpsData(); 909 910 // We always encode GpsTimeStamp 911 mParameters.setGpsTimestamp(System.currentTimeMillis() / 1000); 912 913 // Set GPS location. 914 Location loc = mRecordLocation ? getCurrentLocation() : null; 915 if (loc != null) { 916 double lat = loc.getLatitude(); 917 double lon = loc.getLongitude(); 918 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 919 920 if (hasLatLon) { 921 Log.d(TAG, "Set gps location"); 922 mParameters.setGpsLatitude(lat); 923 mParameters.setGpsLongitude(lon); 924 mParameters.setGpsProcessingMethod(loc.getProvider().toUpperCase()); 925 if (loc.hasAltitude()) { 926 mParameters.setGpsAltitude(loc.getAltitude()); 927 } else { 928 // for NETWORK_PROVIDER location provider, we may have 929 // no altitude information, but the driver needs it, so 930 // we fake one. 931 mParameters.setGpsAltitude(0); 932 } 933 if (loc.getTime() != 0) { 934 // Location.getTime() is UTC in milliseconds. 935 // gps-timestamp is UTC in seconds. 936 long utcTimeSeconds = loc.getTime() / 1000; 937 mParameters.setGpsTimestamp(utcTimeSeconds); 938 } 939 } else { 940 loc = null; 941 } 942 } 943 944 mCameraDevice.setParameters(mParameters); 945 946 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 947 mPostViewPictureCallback, new JpegPictureCallback(loc)); 948 mCameraState = SNAPSHOT_IN_PROGRESS; 949 mHandler.removeMessages(CANCEL_AUTOFOCUS); 950 } 951 952 private boolean saveDataToFile(String filePath, byte[] data) { 953 FileOutputStream f = null; 954 try { 955 f = new FileOutputStream(filePath); 956 f.write(data); 957 } catch (IOException e) { 958 return false; 959 } finally { 960 Util.closeSilently(f); 961 } 962 return true; 963 } 964 965 private String createName(long dateTaken) { 966 Date date = new Date(dateTaken); 967 SimpleDateFormat dateFormat = new SimpleDateFormat( 968 getString(R.string.image_file_name_format)); 969 970 return dateFormat.format(date); 971 } 972 973 @Override 974 public void onCreate(Bundle icicle) { 975 super.onCreate(icicle); 976 977 mIsImageCaptureIntent = isImageCaptureIntent(); 978 if (mIsImageCaptureIntent) { 979 setContentView(R.layout.camera_attach); 980 } else { 981 setContentView(R.layout.camera); 982 } 983 mSurfaceView = (SurfaceView) findViewById(R.id.camera_preview); 984 mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); 985 986 mPreferences = new ComboPreferences(this); 987 CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal()); 988 989 mCameraId = CameraSettings.readPreferredCameraId(mPreferences); 990 991 // Testing purpose. Launch a specific camera through the intent extras. 992 int intentCameraId = Util.getCameraFacingIntentExtras(this); 993 if (intentCameraId != -1) { 994 mCameraId = intentCameraId; 995 } 996 997 mPreferences.setLocalId(this, mCameraId); 998 CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); 999 1000 mNumberOfCameras = CameraHolder.instance().getNumberOfCameras(); 1001 mQuickCapture = getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false); 1002 1003 // we need to reset exposure for the preview 1004 resetExposureCompensation(); 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 mStartPreviewFail = false; 1013 startPreview(); 1014 } catch (CameraHardwareException e) { 1015 // In eng build, we throw the exception so that test tool 1016 // can detect it and report it 1017 if ("eng".equals(Build.TYPE)) { 1018 throw new RuntimeException(e); 1019 } 1020 mStartPreviewFail = true; 1021 } 1022 } 1023 }); 1024 startPreviewThread.start(); 1025 1026 // don't set mSurfaceHolder here. We have it set ONLY within 1027 // surfaceChanged / surfaceDestroyed, other parts of the code 1028 // assume that when it is set, the surface is also set. 1029 SurfaceHolder holder = mSurfaceView.getHolder(); 1030 holder.addCallback(this); 1031 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 1032 1033 if (mIsImageCaptureIntent) { 1034 setupCaptureParams(); 1035 1036 View reviewControl = findViewById(R.id.review_control); 1037 reviewControl.setVisibility(View.VISIBLE); 1038 reviewControl.findViewById(R.id.btn_cancel).setOnClickListener(this); 1039 reviewControl.findViewById(R.id.btn_retake).setOnClickListener(this); 1040 reviewControl.findViewById(R.id.btn_done).setOnClickListener(this); 1041 } else { 1042 mSwitcher = (SwitcherSet) findViewById(R.id.camera_switch); 1043 mSwitcher.setVisibility(View.VISIBLE); 1044 mSwitcher.setOnSwitchListener(this); 1045 } 1046 1047 // Make sure preview is started. 1048 try { 1049 startPreviewThread.join(); 1050 if (mStartPreviewFail) { 1051 showCameraErrorAndFinish(); 1052 return; 1053 } 1054 } catch (InterruptedException ex) { 1055 // ignore 1056 } 1057 1058 mBackCameraId = CameraHolder.instance().getBackCameraId(); 1059 mFrontCameraId = CameraHolder.instance().getFrontCameraId(); 1060 1061 // Do this after starting preview because it depends on camera 1062 // parameters. 1063 initializeIndicatorWheel(); 1064 initializeCameraPicker(); 1065 1066 mZoomPicker = (ZoomPicker) findViewById(R.id.zoom_picker); 1067 if (mZoomPicker != null) mZoomPicker.setEnabled(true); // disabled initially in xml 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 // If we have zoom picker, do not show zoom control on head-up display. 1148 float[] zoomRatios = null; 1149 if (mZoomPicker == null) zoomRatios = getZoomRatios(); 1150 mHeadUpDisplay.initialize(this, mPreferenceGroup, 1151 zoomRatios, mOrientationCompensation); 1152 if (mZoomPicker == null && mParameters.isZoomSupported()) { 1153 mHeadUpDisplay.setZoomListener(new ZoomControllerListener() { 1154 public void onZoomChanged( 1155 int index, float ratio, boolean isMoving) { 1156 onZoomValueChanged(index); 1157 } 1158 }); 1159 } 1160 updateSceneModeUI(); 1161 } 1162 1163 private void attachHeadUpDisplay() { 1164 mHeadUpDisplay.setOrientation(mOrientationCompensation); 1165 if (mParameters.isZoomSupported()) { 1166 mHeadUpDisplay.setZoomIndex(mZoomValue); 1167 } 1168 ViewGroup frame = (ViewGroup) findViewById(R.id.frame); 1169 mGLRootView = new GLRootView(this); 1170 mGLRootView.setContentPane(mHeadUpDisplay); 1171 frame.addView(mGLRootView); 1172 } 1173 1174 private void detachHeadUpDisplay() { 1175 mHeadUpDisplay.setGpsHasSignal(false); 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 RotateImageView icon = (RotateImageView) findViewById( 1234 R.id.review_thumbnail); 1235 if (icon != null) icon.setDegree(degree); 1236 1237 icon = (RotateImageView) findViewById(R.id.camera_switch_icon); 1238 if (icon != null) icon.setDegree(degree); 1239 icon = (RotateImageView) findViewById(R.id.video_switch_icon); 1240 if (icon != null) icon.setDegree(degree); 1241 } 1242 1243 @Override 1244 public void onStart() { 1245 super.onStart(); 1246 if (!mIsImageCaptureIntent) { 1247 mSwitcher.setSwitch(SWITCH_CAMERA); 1248 } 1249 } 1250 1251 @Override 1252 public void onStop() { 1253 super.onStop(); 1254 if (mMediaProviderClient != null) { 1255 mMediaProviderClient.release(); 1256 mMediaProviderClient = null; 1257 } 1258 } 1259 1260 private void checkStorage() { 1261 mPicturesRemaining = Storage.getAvailableSpace(); 1262 if (mPicturesRemaining > 0) { 1263 mPicturesRemaining /= 1500000; 1264 } 1265 updateStorageHint(); 1266 } 1267 1268 public void onClick(View v) { 1269 switch (v.getId()) { 1270 case R.id.btn_retake: 1271 hidePostCaptureAlert(); 1272 restartPreview(); 1273 break; 1274 case R.id.review_thumbnail: 1275 if (isCameraIdle()) { 1276 viewImage(mThumbnailButton); 1277 } 1278 break; 1279 case R.id.btn_done: 1280 doAttach(); 1281 break; 1282 case R.id.btn_cancel: 1283 doCancel(); 1284 break; 1285 case R.id.btn_gallery: 1286 gotoGallery(); 1287 break; 1288 } 1289 } 1290 1291 private void doAttach() { 1292 if (mPausing) { 1293 return; 1294 } 1295 1296 byte[] data = mJpegImageData; 1297 1298 if (mCropValue == null) { 1299 // First handle the no crop case -- just return the value. If the 1300 // caller specifies a "save uri" then write the data to it's 1301 // stream. Otherwise, pass back a scaled down version of the bitmap 1302 // directly in the extras. 1303 if (mSaveUri != null) { 1304 OutputStream outputStream = null; 1305 try { 1306 outputStream = mContentResolver.openOutputStream(mSaveUri); 1307 outputStream.write(data); 1308 outputStream.close(); 1309 1310 setResultEx(RESULT_OK); 1311 finish(); 1312 } catch (IOException ex) { 1313 // ignore exception 1314 } finally { 1315 Util.closeSilently(outputStream); 1316 } 1317 } else { 1318 int orientation = Exif.getOrientation(data); 1319 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1320 bitmap = Util.rotate(bitmap, orientation); 1321 setResultEx(RESULT_OK, 1322 new Intent("inline-data").putExtra("data", bitmap)); 1323 finish(); 1324 } 1325 } else { 1326 // Save the image to a temp file and invoke the cropper 1327 Uri tempUri = null; 1328 FileOutputStream tempStream = null; 1329 try { 1330 File path = getFileStreamPath(sTempCropFilename); 1331 path.delete(); 1332 tempStream = openFileOutput(sTempCropFilename, 0); 1333 tempStream.write(data); 1334 tempStream.close(); 1335 tempUri = Uri.fromFile(path); 1336 } catch (FileNotFoundException ex) { 1337 setResultEx(Activity.RESULT_CANCELED); 1338 finish(); 1339 return; 1340 } catch (IOException ex) { 1341 setResultEx(Activity.RESULT_CANCELED); 1342 finish(); 1343 return; 1344 } finally { 1345 Util.closeSilently(tempStream); 1346 } 1347 1348 Bundle newExtras = new Bundle(); 1349 if (mCropValue.equals("circle")) { 1350 newExtras.putString("circleCrop", "true"); 1351 } 1352 if (mSaveUri != null) { 1353 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1354 } else { 1355 newExtras.putBoolean("return-data", true); 1356 } 1357 1358 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1359 1360 cropIntent.setData(tempUri); 1361 cropIntent.putExtras(newExtras); 1362 1363 startActivityForResult(cropIntent, CROP_MSG); 1364 } 1365 } 1366 1367 private void doCancel() { 1368 setResultEx(RESULT_CANCELED, new Intent()); 1369 finish(); 1370 } 1371 1372 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1373 if (mPausing) { 1374 return; 1375 } 1376 switch (button.getId()) { 1377 case R.id.shutter_button: 1378 doFocus(pressed); 1379 break; 1380 } 1381 } 1382 1383 public void onShutterButtonClick(ShutterButton button) { 1384 if (mPausing) { 1385 return; 1386 } 1387 switch (button.getId()) { 1388 case R.id.shutter_button: 1389 doSnap(); 1390 break; 1391 } 1392 } 1393 1394 private OnScreenHint mStorageHint; 1395 1396 private void updateStorageHint() { 1397 String noStorageText = null; 1398 1399 if (mPicturesRemaining == Storage.UNAVAILABLE) { 1400 noStorageText = getString(R.string.no_storage); 1401 } else if (mPicturesRemaining == Storage.PREPARING) { 1402 noStorageText = getString(R.string.preparing_sd); 1403 } else if (mPicturesRemaining == Storage.UNKNOWN_SIZE) { 1404 noStorageText = getString(R.string.access_sd_fail); 1405 } else if (mPicturesRemaining < 1L) { 1406 noStorageText = getString(R.string.not_enough_space); 1407 } 1408 1409 if (noStorageText != null) { 1410 if (mStorageHint == null) { 1411 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1412 } else { 1413 mStorageHint.setText(noStorageText); 1414 } 1415 mStorageHint.show(); 1416 } else if (mStorageHint != null) { 1417 mStorageHint.cancel(); 1418 mStorageHint = null; 1419 } 1420 } 1421 1422 private void installIntentFilter() { 1423 // install an intent filter to receive SD card related events. 1424 IntentFilter intentFilter = 1425 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1426 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1427 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1428 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1429 intentFilter.addDataScheme("file"); 1430 registerReceiver(mReceiver, intentFilter); 1431 mDidRegister = true; 1432 } 1433 1434 private void initializeFocusTone() { 1435 // Initialize focus tone generator. 1436 try { 1437 mFocusToneGenerator = new ToneGenerator( 1438 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1439 } catch (Throwable ex) { 1440 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1441 mFocusToneGenerator = null; 1442 } 1443 } 1444 1445 private void initializeScreenBrightness() { 1446 Window win = getWindow(); 1447 // Overright the brightness settings if it is automatic 1448 int mode = Settings.System.getInt( 1449 getContentResolver(), 1450 Settings.System.SCREEN_BRIGHTNESS_MODE, 1451 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); 1452 if (mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC) { 1453 WindowManager.LayoutParams winParams = win.getAttributes(); 1454 winParams.screenBrightness = DEFAULT_CAMERA_BRIGHTNESS; 1455 win.setAttributes(winParams); 1456 } 1457 } 1458 1459 @Override 1460 protected void onResume() { 1461 super.onResume(); 1462 1463 mPausing = false; 1464 mJpegPictureCallbackTime = 0; 1465 mZoomValue = 0; 1466 1467 // Start the preview if it is not started. 1468 if (mCameraState == PREVIEW_STOPPED && !mStartPreviewFail) { 1469 resetExposureCompensation(); 1470 if (!restartPreview()) return; 1471 } 1472 1473 if (mSurfaceHolder != null) { 1474 // If first time initialization is not finished, put it in the 1475 // message queue. 1476 if (!mFirstTimeInitialized) { 1477 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1478 } else { 1479 initializeSecondTime(); 1480 } 1481 } 1482 keepScreenOnAwhile(); 1483 1484 if (mCameraState == IDLE) { 1485 mOnResumeTime = SystemClock.uptimeMillis(); 1486 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 1487 } 1488 } 1489 1490 @Override 1491 public void onConfigurationChanged(Configuration config) { 1492 super.onConfigurationChanged(config); 1493 changeHeadUpDisplayState(); 1494 } 1495 1496 @Override 1497 protected void onPause() { 1498 mPausing = true; 1499 stopPreview(); 1500 // Close the camera now because other activities may need to use it. 1501 closeCamera(); 1502 resetScreenOn(); 1503 collapseCameraControls(); 1504 changeHeadUpDisplayState(); 1505 1506 if (mFirstTimeInitialized) { 1507 mOrientationListener.disable(); 1508 if (!mIsImageCaptureIntent) { 1509 if (mThumbnailButton != null) { 1510 mThumbnailButton.storeData(LAST_THUMB_PATH); 1511 } 1512 } 1513 hidePostCaptureAlert(); 1514 } 1515 1516 if (mDidRegister) { 1517 unregisterReceiver(mReceiver); 1518 mDidRegister = false; 1519 } 1520 stopReceivingLocationUpdates(); 1521 1522 if (mFocusToneGenerator != null) { 1523 mFocusToneGenerator.release(); 1524 mFocusToneGenerator = null; 1525 } 1526 1527 if (mStorageHint != null) { 1528 mStorageHint.cancel(); 1529 mStorageHint = null; 1530 } 1531 1532 // If we are in an image capture intent and has taken 1533 // a picture, we just clear it in onPause. 1534 mJpegImageData = null; 1535 1536 // Remove the messages in the event queue. 1537 mHandler.removeMessages(RESTART_PREVIEW); 1538 mHandler.removeMessages(FIRST_TIME_INIT); 1539 mHandler.removeMessages(CHECK_DISPLAY_ROTATION); 1540 mHandler.removeMessages(CANCEL_AUTOFOCUS); 1541 1542 super.onPause(); 1543 } 1544 1545 @Override 1546 protected void onActivityResult( 1547 int requestCode, int resultCode, Intent data) { 1548 switch (requestCode) { 1549 case CROP_MSG: { 1550 Intent intent = new Intent(); 1551 if (data != null) { 1552 Bundle extras = data.getExtras(); 1553 if (extras != null) { 1554 intent.putExtras(extras); 1555 } 1556 } 1557 setResultEx(resultCode, intent); 1558 finish(); 1559 1560 File path = getFileStreamPath(sTempCropFilename); 1561 path.delete(); 1562 1563 break; 1564 } 1565 } 1566 } 1567 1568 private boolean canTakePicture() { 1569 return isCameraIdle() && (mPicturesRemaining > 0); 1570 } 1571 1572 private void autoFocus() { 1573 Log.v(TAG, "Start autofocus."); 1574 mFocusStartTime = System.currentTimeMillis(); 1575 mCameraDevice.autoFocus(mAutoFocusCallback); 1576 mCameraState = FOCUSING; 1577 enableCameraControls(false); 1578 updateFocusUI(); 1579 mHandler.removeMessages(CANCEL_AUTOFOCUS); 1580 } 1581 1582 private void cancelAutoFocus() { 1583 Log.v(TAG, "Cancel autofocus."); 1584 mCameraDevice.cancelAutoFocus(); 1585 mCameraState = IDLE; 1586 enableCameraControls(true); 1587 resetTouchFocus(); 1588 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1589 updateFocusUI(); 1590 mHandler.removeMessages(CANCEL_AUTOFOCUS); 1591 } 1592 1593 private void updateFocusUI() { 1594 if (mCameraState == FOCUSING || mCameraState == FOCUSING_SNAP_ON_FINISH) { 1595 mFocusRectangle.showStart(); 1596 } else if (mCameraState == FOCUS_SUCCESS) { 1597 mFocusRectangle.showSuccess(); 1598 } else if (mCameraState == FOCUS_FAIL) { 1599 mFocusRectangle.showFail(); 1600 } else { 1601 mFocusRectangle.clear(); 1602 } 1603 } 1604 1605 // Preview area is touched. Handle touch focus. 1606 @Override 1607 public boolean onTouch(View v, MotionEvent e) { 1608 if (e.getAction() != MotionEvent.ACTION_DOWN) return false; 1609 1610 // Do not trigger touch focus when popup window is dismissed. 1611 if (collapseCameraControls()) return false; 1612 1613 if (mPausing || !mFirstTimeInitialized || !canTakePicture()) { 1614 return false; 1615 } 1616 1617 // Take a picture if metering area or focus area is supported. 1618 if (mParameters.getMaxNumMeteringAreas() == 0 1619 && (mParameters.getMaxNumFocusAreas() == 0 1620 || (!mFocusMode.equals(Parameters.FOCUS_MODE_AUTO) && 1621 !mFocusMode.equals(Parameters.FOCUS_MODE_MACRO) && 1622 !mFocusMode.equals(Parameters.FOCUS_MODE_CONTINUOUS_VIDEO)))) { 1623 return false; 1624 } 1625 1626 // Calculate the position of the focus rectangle. 1627 int x = Math.round(e.getX()); 1628 int y = Math.round(e.getY()); 1629 int focusWidth = mFocusRectangle.getWidth(); 1630 int focusHeight = mFocusRectangle.getHeight(); 1631 int left = Util.clamp(x - focusWidth / 2, 0, 1632 mPreviewFrame.getWidth() - focusWidth); 1633 int top = Util.clamp(y - focusHeight / 2, 0, 1634 mPreviewFrame.getHeight() - focusHeight); 1635 Log.d(TAG, "x=" + x + ". y=" + y); 1636 Log.d(TAG, "Margin left=" + left + ". top=" + top); 1637 Log.d(TAG, "Preview width=" + mPreviewFrame.getWidth() + 1638 ". height=" + mPreviewFrame.getHeight()); 1639 Log.d(TAG, "focusWidth=" + focusWidth + ". focusHeight=" + focusHeight); 1640 1641 // Convert the coordinates to driver format. The coordinates range from 1642 // -1000 to 1000. 1643 if (mFocusArea == null) { 1644 mFocusArea = new ArrayList<Area>(); 1645 mFocusArea.add(new Area(new Rect(), 1)); 1646 } 1647 Rect rect = mFocusArea.get(0).rect; 1648 convertToFocusArea(left, top, focusWidth, focusHeight, mPreviewFrame.getWidth(), 1649 mPreviewFrame.getHeight(), mFocusArea.get(0).rect); 1650 1651 // Use margin to set the focus rectangle to the touched area. 1652 RelativeLayout.LayoutParams p = 1653 (RelativeLayout.LayoutParams) mFocusRectangle.getLayoutParams(); 1654 p.setMargins(left + mPreviewBorder.getPaddingLeft(), 1655 top + mPreviewBorder.getPaddingTop(), 0, 0); 1656 // Disable "center" rule because we no longer want to put it in the center. 1657 int[] rules = p.getRules(); 1658 rules[RelativeLayout.CENTER_IN_PARENT] = 0; 1659 mFocusRectangle.requestLayout(); 1660 1661 // Set the focus area and do autofocus. 1662 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1663 autoFocus(); 1664 1665 return true; 1666 } 1667 1668 // Convert the touch point to the focus area in driver format. 1669 public static void convertToFocusArea(int left, int top, int focusWidth, int focusHeight, 1670 int previewWidth, int previewHeight, Rect rect) { 1671 rect.left = Math.round((float) left / previewWidth * 2000 - 1000); 1672 rect.top = Math.round((float) top / previewHeight * 2000 - 1000); 1673 rect.right = Math.round((float) (left + focusWidth) / previewWidth * 2000 - 1000); 1674 rect.bottom = Math.round((float) (top + focusHeight) / previewHeight * 2000 - 1000); 1675 } 1676 1677 void resetTouchFocus() { 1678 // Put focus rectangle to the center. 1679 RelativeLayout.LayoutParams p = 1680 (RelativeLayout.LayoutParams) mFocusRectangle.getLayoutParams(); 1681 int[] rules = p.getRules(); 1682 rules[RelativeLayout.CENTER_IN_PARENT] = RelativeLayout.TRUE; 1683 p.setMargins(0, 0, 0, 0); 1684 1685 mFocusArea = null; 1686 } 1687 1688 @Override 1689 public void onBackPressed() { 1690 if (!isCameraIdle()) { 1691 // ignore backs while we're taking a picture 1692 return; 1693 } else if (!collapseCameraControls()) { 1694 super.onBackPressed(); 1695 } 1696 } 1697 1698 @Override 1699 public boolean onKeyDown(int keyCode, KeyEvent event) { 1700 switch (keyCode) { 1701 case KeyEvent.KEYCODE_FOCUS: 1702 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1703 doFocus(true); 1704 } 1705 return true; 1706 case KeyEvent.KEYCODE_CAMERA: 1707 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1708 doSnap(); 1709 } 1710 return true; 1711 case KeyEvent.KEYCODE_DPAD_CENTER: 1712 // If we get a dpad center event without any focused view, move 1713 // the focus to the shutter button and press it. 1714 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1715 // Start auto-focus immediately to reduce shutter lag. After 1716 // the shutter button gets the focus, doFocus() will be 1717 // called again but it is fine. 1718 if (collapseCameraControls()) return true; 1719 doFocus(true); 1720 if (mShutterButton.isInTouchMode()) { 1721 mShutterButton.requestFocusFromTouch(); 1722 } else { 1723 mShutterButton.requestFocus(); 1724 } 1725 mShutterButton.setPressed(true); 1726 } 1727 return true; 1728 } 1729 1730 return super.onKeyDown(keyCode, event); 1731 } 1732 1733 @Override 1734 public boolean onKeyUp(int keyCode, KeyEvent event) { 1735 switch (keyCode) { 1736 case KeyEvent.KEYCODE_FOCUS: 1737 if (mFirstTimeInitialized) { 1738 doFocus(false); 1739 } 1740 return true; 1741 } 1742 return super.onKeyUp(keyCode, event); 1743 } 1744 1745 private void doSnap() { 1746 if (collapseCameraControls()) return; 1747 1748 Log.v(TAG, "doSnap: mCameraState=" + mCameraState); 1749 // If the user has half-pressed the shutter and focus is completed, we 1750 // can take the photo right away. If the focus mode is infinity, we can 1751 // also take the photo. 1752 if (mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1753 || mFocusMode.equals(Parameters.FOCUS_MODE_FIXED) 1754 || mFocusMode.equals(Parameters.FOCUS_MODE_EDOF) 1755 || (mCameraState == FOCUS_SUCCESS 1756 || mCameraState == FOCUS_FAIL)) { 1757 capture(); 1758 } else if (mCameraState == FOCUSING) { 1759 // Half pressing the shutter (i.e. the focus button event) will 1760 // already have requested AF for us, so just request capture on 1761 // focus here. 1762 mCameraState = FOCUSING_SNAP_ON_FINISH; 1763 } else if (mCameraState == IDLE) { 1764 // Focus key down event is dropped for some reasons. Just ignore. 1765 } 1766 } 1767 1768 private void doFocus(boolean pressed) { 1769 // Do the focus if the mode is not infinity. 1770 if (collapseCameraControls()) return; 1771 if (!(mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1772 || mFocusMode.equals(Parameters.FOCUS_MODE_FIXED) 1773 || mFocusMode.equals(Parameters.FOCUS_MODE_EDOF))) { 1774 if (pressed) { // Focus key down. 1775 // Do not do focus if there is not enoguh storage. Do not focus 1776 // if touch focus has been triggered, that is, camera state is 1777 // FOCUS_SUCCESS or FOCUS_FAIL. 1778 if (canTakePicture() && mCameraState != FOCUS_SUCCESS 1779 && mCameraState != FOCUS_FAIL) { 1780 autoFocus(); 1781 } 1782 } else { // Focus key up. 1783 // User releases half-pressed focus key. 1784 if (mCameraState == FOCUSING || mCameraState == FOCUS_SUCCESS 1785 || mCameraState == FOCUS_FAIL) { 1786 cancelAutoFocus(); 1787 } 1788 } 1789 } 1790 } 1791 1792 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1793 // Make sure we have a surface in the holder before proceeding. 1794 if (holder.getSurface() == null) { 1795 Log.d(TAG, "holder.getSurface() == null"); 1796 return; 1797 } 1798 1799 Log.v(TAG, "surfaceChanged. w=" + w + ". h=" + h); 1800 1801 // We need to save the holder for later use, even when the mCameraDevice 1802 // is null. This could happen if onResume() is invoked after this 1803 // function. 1804 mSurfaceHolder = holder; 1805 1806 // The mCameraDevice will be null if it fails to connect to the camera 1807 // hardware. In this case we will show a dialog and then finish the 1808 // activity, so it's OK to ignore it. 1809 if (mCameraDevice == null) return; 1810 1811 // Sometimes surfaceChanged is called after onPause or before onResume. 1812 // Ignore it. 1813 if (mPausing || isFinishing()) return; 1814 1815 // Set preview display if the surface is being created. Preview was 1816 // already started. Also restart the preview if display rotation has 1817 // changed. Sometimes this happens when the device is held in portrait 1818 // and camera app is opened. Rotation animation takes some time and 1819 // display rotation in onCreate may not be what we want. 1820 if (mCameraState != PREVIEW_STOPPED 1821 && (Util.getDisplayRotation(this) == mDisplayRotation) 1822 && holder.isCreating()) { 1823 // Set preview display if the surface is being created and preview 1824 // was already started. That means preview display was set to null 1825 // and we need to set it now. 1826 setPreviewDisplay(holder); 1827 } else { 1828 // 1. Restart the preview if the size of surface was changed. The 1829 // framework may not support changing preview display on the fly. 1830 // 2. Start the preview now if surface was destroyed and preview 1831 // stopped. 1832 restartPreview(); 1833 } 1834 1835 // If first time initialization is not finished, send a message to do 1836 // it later. We want to finish surfaceChanged as soon as possible to let 1837 // user see preview first. 1838 if (!mFirstTimeInitialized) { 1839 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1840 } else { 1841 initializeSecondTime(); 1842 } 1843 } 1844 1845 public void surfaceCreated(SurfaceHolder holder) { 1846 } 1847 1848 public void surfaceDestroyed(SurfaceHolder holder) { 1849 stopPreview(); 1850 mSurfaceHolder = null; 1851 } 1852 1853 private void closeCamera() { 1854 if (mCameraDevice != null) { 1855 CameraHolder.instance().release(); 1856 mCameraDevice.setZoomChangeListener(null); 1857 mCameraDevice = null; 1858 mCameraState = PREVIEW_STOPPED; 1859 } 1860 } 1861 1862 private void ensureCameraDevice() throws CameraHardwareException { 1863 if (mCameraDevice == null) { 1864 mCameraDevice = CameraHolder.instance().open(mCameraId); 1865 mInitialParams = mCameraDevice.getParameters(); 1866 } 1867 } 1868 1869 private void showCameraErrorAndFinish() { 1870 Resources ress = getResources(); 1871 Util.showFatalErrorAndFinish(Camera.this, 1872 ress.getString(R.string.camera_error_title), 1873 ress.getString(R.string.cannot_connect_camera)); 1874 } 1875 1876 private boolean restartPreview() { 1877 try { 1878 startPreview(); 1879 } catch (CameraHardwareException e) { 1880 showCameraErrorAndFinish(); 1881 return false; 1882 } 1883 return true; 1884 } 1885 1886 private void setPreviewDisplay(SurfaceHolder holder) { 1887 try { 1888 mCameraDevice.setPreviewDisplay(holder); 1889 } catch (Throwable ex) { 1890 closeCamera(); 1891 throw new RuntimeException("setPreviewDisplay failed", ex); 1892 } 1893 } 1894 1895 private void startPreview() throws CameraHardwareException { 1896 if (mPausing || isFinishing()) return; 1897 1898 resetTouchFocus(); 1899 1900 ensureCameraDevice(); 1901 mCameraDevice.setErrorCallback(mErrorCallback); 1902 1903 // If we're previewing already, stop the preview first (this will blank 1904 // the screen). 1905 if (mCameraState != PREVIEW_STOPPED) stopPreview(); 1906 1907 setPreviewDisplay(mSurfaceHolder); 1908 mDisplayRotation = Util.getDisplayRotation(this); 1909 Util.setCameraDisplayOrientation(mDisplayRotation, mCameraId, mCameraDevice); 1910 setCameraParameters(UPDATE_PARAM_ALL); 1911 1912 1913 try { 1914 Log.v(TAG, "startPreview"); 1915 mCameraDevice.startPreview(); 1916 } catch (Throwable ex) { 1917 closeCamera(); 1918 throw new RuntimeException("startPreview failed", ex); 1919 } 1920 mZoomState = ZOOM_STOPPED; 1921 mCameraState = IDLE; 1922 } 1923 1924 private void stopPreview() { 1925 if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) { 1926 Log.v(TAG, "stopPreview"); 1927 mCameraDevice.stopPreview(); 1928 } 1929 mCameraState = PREVIEW_STOPPED; 1930 // If auto focus was in progress, it would have been canceled. 1931 updateFocusUI(); 1932 } 1933 1934 private static boolean isSupported(String value, List<String> supported) { 1935 return supported == null ? false : supported.indexOf(value) >= 0; 1936 } 1937 1938 private void updateCameraParametersInitialize() { 1939 // Reset preview frame rate to the maximum because it may be lowered by 1940 // video camera application. 1941 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1942 if (frameRates != null) { 1943 Integer max = Collections.max(frameRates); 1944 mParameters.setPreviewFrameRate(max); 1945 } 1946 1947 } 1948 1949 private void updateCameraParametersZoom() { 1950 // Set zoom. 1951 if (mParameters.isZoomSupported()) { 1952 mParameters.setZoom(mZoomValue); 1953 } 1954 } 1955 1956 private void updateCameraParametersPreference() { 1957 if (mParameters.getMaxNumFocusAreas() > 0) { 1958 mParameters.setFocusAreas(mFocusArea); 1959 Log.d(TAG, "Parameter focus areas=" + mParameters.get("focus-areas")); 1960 } 1961 1962 if (mParameters.getMaxNumMeteringAreas() > 0) { 1963 // Use the same area for focus and metering. 1964 mParameters.setMeteringAreas(mFocusArea); 1965 } 1966 1967 // Set picture size. 1968 String pictureSize = mPreferences.getString( 1969 CameraSettings.KEY_PICTURE_SIZE, null); 1970 if (pictureSize == null) { 1971 CameraSettings.initialCameraPictureSize(this, mParameters); 1972 } else { 1973 List<Size> supported = mParameters.getSupportedPictureSizes(); 1974 CameraSettings.setCameraPictureSize( 1975 pictureSize, supported, mParameters); 1976 } 1977 1978 // Set the preview frame aspect ratio according to the picture size. 1979 Size size = mParameters.getPictureSize(); 1980 PreviewFrameLayout frameLayout = 1981 (PreviewFrameLayout) findViewById(R.id.frame_layout); 1982 frameLayout.setAspectRatio((double) size.width / size.height); 1983 1984 // Set a preview size that is closest to the viewfinder height and has 1985 // the right aspect ratio. 1986 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1987 Size optimalSize = Util.getOptimalPreviewSize(this, 1988 sizes, (double) size.width / size.height); 1989 Size original = mParameters.getPreviewSize(); 1990 if (!original.equals(optimalSize)) { 1991 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1992 1993 // Zoom related settings will be changed for different preview 1994 // sizes, so set and read the parameters to get lastest values 1995 mCameraDevice.setParameters(mParameters); 1996 mParameters = mCameraDevice.getParameters(); 1997 } 1998 Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height); 1999 2000 // Since change scene mode may change supported values, 2001 // Set scene mode first, 2002 mSceneMode = mPreferences.getString( 2003 CameraSettings.KEY_SCENE_MODE, 2004 getString(R.string.pref_camera_scenemode_default)); 2005 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 2006 if (!mParameters.getSceneMode().equals(mSceneMode)) { 2007 mParameters.setSceneMode(mSceneMode); 2008 mCameraDevice.setParameters(mParameters); 2009 2010 // Setting scene mode will change the settings of flash mode, 2011 // white balance, and focus mode. Here we read back the 2012 // parameters, so we can know those settings. 2013 mParameters = mCameraDevice.getParameters(); 2014 } 2015 } else { 2016 mSceneMode = mParameters.getSceneMode(); 2017 if (mSceneMode == null) { 2018 mSceneMode = Parameters.SCENE_MODE_AUTO; 2019 } 2020 } 2021 2022 // Set JPEG quality. 2023 String jpegQuality = mPreferences.getString( 2024 CameraSettings.KEY_JPEG_QUALITY, 2025 getString(R.string.pref_camera_jpegquality_default)); 2026 mParameters.setJpegQuality(JpegEncodingQualityMappings.getQualityNumber(jpegQuality)); 2027 2028 // For the following settings, we need to check if the settings are 2029 // still supported by latest driver, if not, ignore the settings. 2030 2031 // Set color effect parameter. 2032 String colorEffect = mPreferences.getString( 2033 CameraSettings.KEY_COLOR_EFFECT, 2034 getString(R.string.pref_camera_coloreffect_default)); 2035 if (isSupported(colorEffect, mParameters.getSupportedColorEffects())) { 2036 mParameters.setColorEffect(colorEffect); 2037 } 2038 2039 // Set exposure compensation 2040 String exposure = mPreferences.getString( 2041 CameraSettings.KEY_EXPOSURE, 2042 getString(R.string.pref_exposure_default)); 2043 try { 2044 int value = Integer.parseInt(exposure); 2045 int max = mParameters.getMaxExposureCompensation(); 2046 int min = mParameters.getMinExposureCompensation(); 2047 if (value >= min && value <= max) { 2048 mParameters.setExposureCompensation(value); 2049 } else { 2050 Log.w(TAG, "invalid exposure range: " + exposure); 2051 } 2052 } catch (NumberFormatException e) { 2053 Log.w(TAG, "invalid exposure: " + exposure); 2054 } 2055 2056 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 2057 // Set flash mode. 2058 String flashMode = mPreferences.getString( 2059 CameraSettings.KEY_FLASH_MODE, 2060 getString(R.string.pref_camera_flashmode_default)); 2061 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 2062 if (isSupported(flashMode, supportedFlash)) { 2063 mParameters.setFlashMode(flashMode); 2064 } else { 2065 flashMode = mParameters.getFlashMode(); 2066 if (flashMode == null) { 2067 flashMode = getString( 2068 R.string.pref_camera_flashmode_no_flash); 2069 } 2070 } 2071 2072 // Set white balance parameter. 2073 String whiteBalance = mPreferences.getString( 2074 CameraSettings.KEY_WHITE_BALANCE, 2075 getString(R.string.pref_camera_whitebalance_default)); 2076 if (isSupported(whiteBalance, 2077 mParameters.getSupportedWhiteBalance())) { 2078 mParameters.setWhiteBalance(whiteBalance); 2079 } else { 2080 whiteBalance = mParameters.getWhiteBalance(); 2081 if (whiteBalance == null) { 2082 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 2083 } 2084 } 2085 2086 // Set focus mode. 2087 mFocusMode = mPreferences.getString( 2088 CameraSettings.KEY_FOCUS_MODE, 2089 getString(R.string.pref_camera_focusmode_default)); 2090 if (isSupported(mFocusMode, mParameters.getSupportedFocusModes())) { 2091 mParameters.setFocusMode(mFocusMode); 2092 } else { 2093 mFocusMode = mParameters.getFocusMode(); 2094 if (mFocusMode == null) { 2095 mFocusMode = Parameters.FOCUS_MODE_AUTO; 2096 } 2097 } 2098 } else { 2099 mFocusMode = mParameters.getFocusMode(); 2100 } 2101 } 2102 2103 // We separate the parameters into several subsets, so we can update only 2104 // the subsets actually need updating. The PREFERENCE set needs extra 2105 // locking because the preference can be changed from GLThread as well. 2106 private void setCameraParameters(int updateSet) { 2107 mParameters = mCameraDevice.getParameters(); 2108 2109 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 2110 updateCameraParametersInitialize(); 2111 } 2112 2113 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 2114 updateCameraParametersZoom(); 2115 } 2116 2117 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 2118 updateCameraParametersPreference(); 2119 } 2120 2121 mCameraDevice.setParameters(mParameters); 2122 } 2123 2124 // If the Camera is idle, update the parameters immediately, otherwise 2125 // accumulate them in mUpdateSet and update later. 2126 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 2127 mUpdateSet |= additionalUpdateSet; 2128 if (mCameraDevice == null) { 2129 // We will update all the parameters when we open the device, so 2130 // we don't need to do anything now. 2131 mUpdateSet = 0; 2132 return; 2133 } else if (isCameraIdle()) { 2134 setCameraParameters(mUpdateSet); 2135 updateSceneModeUI(); 2136 mUpdateSet = 0; 2137 } else { 2138 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 2139 mHandler.sendEmptyMessageDelayed( 2140 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 2141 } 2142 } 2143 } 2144 2145 private void gotoGallery() { 2146 MenuHelper.gotoCameraImageGallery(this); 2147 } 2148 2149 private void viewImage(RotateImageView view) { 2150 if(!view.isUriValid()) { 2151 Log.e(TAG, "Uri invalid. uri=" + view.getUri()); 2152 return; 2153 } 2154 2155 try { 2156 startActivity(new Intent( 2157 Util.REVIEW_ACTION, view.getUri())); 2158 } catch (ActivityNotFoundException ex) { 2159 try { 2160 startActivity(new Intent( 2161 Intent.ACTION_VIEW, view.getUri())); 2162 } catch (ActivityNotFoundException e) { 2163 Log.e(TAG, "review image fail. uri=" + view.getUri(), e); 2164 } 2165 } 2166 } 2167 2168 private void startReceivingLocationUpdates() { 2169 if (mLocationManager != null) { 2170 try { 2171 mLocationManager.requestLocationUpdates( 2172 LocationManager.NETWORK_PROVIDER, 2173 1000, 2174 0F, 2175 mLocationListeners[1]); 2176 } catch (SecurityException ex) { 2177 Log.i(TAG, "fail to request location update, ignore", ex); 2178 } catch (IllegalArgumentException ex) { 2179 Log.d(TAG, "provider does not exist " + ex.getMessage()); 2180 } 2181 try { 2182 mLocationManager.requestLocationUpdates( 2183 LocationManager.GPS_PROVIDER, 2184 1000, 2185 0F, 2186 mLocationListeners[0]); 2187 showGpsOnScreenIndicator(false); 2188 } catch (SecurityException ex) { 2189 Log.i(TAG, "fail to request location update, ignore", ex); 2190 } catch (IllegalArgumentException ex) { 2191 Log.d(TAG, "provider does not exist " + ex.getMessage()); 2192 } 2193 Log.d(TAG, "startReceivingLocationUpdates"); 2194 } 2195 } 2196 2197 private void stopReceivingLocationUpdates() { 2198 if (mLocationManager != null) { 2199 for (int i = 0; i < mLocationListeners.length; i++) { 2200 try { 2201 mLocationManager.removeUpdates(mLocationListeners[i]); 2202 } catch (Exception ex) { 2203 Log.i(TAG, "fail to remove location listners, ignore", ex); 2204 } 2205 } 2206 Log.d(TAG, "stopReceivingLocationUpdates"); 2207 } 2208 hideGpsOnScreenIndicator(); 2209 } 2210 2211 private Location getCurrentLocation() { 2212 // go in best to worst order 2213 for (int i = 0; i < mLocationListeners.length; i++) { 2214 Location l = mLocationListeners[i].current(); 2215 if (l != null) return l; 2216 } 2217 Log.d(TAG, "No location received yet."); 2218 return null; 2219 } 2220 2221 private boolean isCameraIdle() { 2222 return mCameraState == IDLE || mCameraState == FOCUS_SUCCESS || mCameraState == FOCUS_FAIL; 2223 } 2224 2225 private boolean isImageCaptureIntent() { 2226 String action = getIntent().getAction(); 2227 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 2228 } 2229 2230 private void setupCaptureParams() { 2231 Bundle myExtras = getIntent().getExtras(); 2232 if (myExtras != null) { 2233 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 2234 mCropValue = myExtras.getString("crop"); 2235 } 2236 } 2237 2238 private void showPostCaptureAlert() { 2239 if (mIsImageCaptureIntent) { 2240 if (mIndicatorWheel == null) { 2241 mShutterButton.setVisibility(View.INVISIBLE); 2242 } else { 2243 mShutterButton.setEnabled(false); 2244 } 2245 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2246 for (int id : pickIds) { 2247 View button = findViewById(id); 2248 ((View) button.getParent()).setVisibility(View.VISIBLE); 2249 } 2250 2251 // Remove the text of the cancel button 2252 View view = findViewById(R.id.btn_cancel); 2253 if (view instanceof Button) ((Button) view).setText(""); 2254 } 2255 } 2256 2257 private void hidePostCaptureAlert() { 2258 if (mIsImageCaptureIntent) { 2259 if (mIndicatorWheel == null) { 2260 mShutterButton.setVisibility(View.VISIBLE); 2261 } else { 2262 mShutterButton.setEnabled(true); 2263 } 2264 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2265 for (int id : pickIds) { 2266 View button = findViewById(id); 2267 ((View) button.getParent()).setVisibility(View.GONE); 2268 } 2269 enableCameraControls(true); 2270 2271 // Restore the text of the cancel button 2272 View view = findViewById(R.id.btn_cancel); 2273 if (view instanceof Button) { 2274 ((Button) view).setText(R.string.review_cancel); 2275 } 2276 } 2277 } 2278 2279 @Override 2280 public boolean onPrepareOptionsMenu(Menu menu) { 2281 super.onPrepareOptionsMenu(menu); 2282 // Only show the menu when camera is idle. 2283 for (int i = 0; i < menu.size(); i++) { 2284 menu.getItem(i).setVisible(isCameraIdle()); 2285 } 2286 2287 return true; 2288 } 2289 2290 @Override 2291 public boolean onCreateOptionsMenu(Menu menu) { 2292 super.onCreateOptionsMenu(menu); 2293 2294 if (mIsImageCaptureIntent) { 2295 // No options menu for attach mode. 2296 return false; 2297 } else { 2298 addBaseMenuItems(menu); 2299 } 2300 return true; 2301 } 2302 2303 private void addBaseMenuItems(Menu menu) { 2304 MenuHelper.addSwitchModeMenuItem(menu, true, new Runnable() { 2305 public void run() { 2306 switchToVideoMode(); 2307 } 2308 }); 2309 MenuItem gallery = menu.add(Menu.NONE, Menu.NONE, 2310 MenuHelper.POSITION_GOTO_GALLERY, 2311 R.string.camera_gallery_photos_text) 2312 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2313 public boolean onMenuItemClick(MenuItem item) { 2314 gotoGallery(); 2315 return true; 2316 } 2317 }); 2318 gallery.setIcon(android.R.drawable.ic_menu_gallery); 2319 mGalleryItems.add(gallery); 2320 2321 if (mNumberOfCameras > 1) { 2322 menu.add(Menu.NONE, Menu.NONE, 2323 MenuHelper.POSITION_SWITCH_CAMERA_ID, 2324 R.string.switch_camera_id) 2325 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2326 public boolean onMenuItemClick(MenuItem item) { 2327 CameraSettings.writePreferredCameraId(mPreferences, 2328 ((mCameraId == mFrontCameraId) 2329 ? mBackCameraId : mFrontCameraId)); 2330 onSharedPreferenceChanged(); 2331 return true; 2332 } 2333 }).setIcon(android.R.drawable.ic_menu_camera); 2334 } 2335 } 2336 2337 private boolean switchToVideoMode() { 2338 if (isFinishing() || !isCameraIdle()) return false; 2339 MenuHelper.gotoVideoMode(Camera.this); 2340 mHandler.removeMessages(FIRST_TIME_INIT); 2341 finish(); 2342 return true; 2343 } 2344 2345 public boolean onSwitchChanged(Switcher source, boolean onOff) { 2346 if (onOff == SWITCH_VIDEO) { 2347 return switchToVideoMode(); 2348 } else { 2349 return true; 2350 } 2351 } 2352 2353 private void onSharedPreferenceChanged() { 2354 // ignore the events after "onPause()" 2355 if (mPausing) return; 2356 2357 boolean recordLocation; 2358 2359 recordLocation = RecordLocationPreference.get( 2360 mPreferences, getContentResolver()); 2361 2362 if (mRecordLocation != recordLocation) { 2363 mRecordLocation = recordLocation; 2364 if (mRecordLocation) { 2365 startReceivingLocationUpdates(); 2366 } else { 2367 stopReceivingLocationUpdates(); 2368 } 2369 } 2370 int cameraId = CameraSettings.readPreferredCameraId(mPreferences); 2371 if (mCameraId != cameraId) { 2372 // Restart the activity to have a crossfade animation. 2373 // TODO: Use SurfaceTexture to implement a better and faster 2374 // animation. 2375 if (mIsImageCaptureIntent) { 2376 // If the intent is camera capture, stay in camera capture mode. 2377 MenuHelper.gotoCameraMode(this, getIntent()); 2378 } else { 2379 MenuHelper.gotoCameraMode(this); 2380 } 2381 2382 finish(); 2383 } else { 2384 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 2385 } 2386 } 2387 2388 @Override 2389 public void onUserInteraction() { 2390 super.onUserInteraction(); 2391 keepScreenOnAwhile(); 2392 } 2393 2394 private void resetScreenOn() { 2395 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2396 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2397 } 2398 2399 private void keepScreenOnAwhile() { 2400 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2401 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2402 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2403 } 2404 2405 private class MyHeadUpDisplayListener implements HeadUpDisplay.Listener { 2406 2407 public void onSharedPreferenceChanged() { 2408 Camera.this.onSharedPreferenceChanged(); 2409 } 2410 2411 public void onRestorePreferencesClicked() { 2412 Camera.this.onRestorePreferencesClicked(); 2413 } 2414 2415 public void onPopupWindowVisibilityChanged(int visibility) { 2416 } 2417 } 2418 2419 protected void onRestorePreferencesClicked() { 2420 if (mPausing) return; 2421 Runnable runnable = new Runnable() { 2422 public void run() { 2423 restorePreferences(); 2424 } 2425 }; 2426 MenuHelper.confirmAction(this, 2427 getString(R.string.confirm_restore_title), 2428 getString(R.string.confirm_restore_message), 2429 runnable); 2430 } 2431 2432 private void restorePreferences() { 2433 // Reset the zoom. Zoom value is not stored in preference. 2434 if (mParameters.isZoomSupported()) { 2435 mZoomValue = 0; 2436 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 2437 if (mZoomPicker != null) mZoomPicker.setZoomIndex(0); 2438 } 2439 2440 if (mHeadUpDisplay != null) { 2441 mHeadUpDisplay.restorePreferences(mParameters); 2442 } 2443 2444 if (mIndicatorWheel != null) { 2445 mIndicatorWheel.dismissSettingPopup(); 2446 CameraSettings.restorePreferences(Camera.this, mPreferences, 2447 mParameters); 2448 initializeIndicatorWheel(); 2449 onSharedPreferenceChanged(); 2450 } 2451 } 2452 2453 protected void onOverriddenPreferencesClicked() { 2454 if (mPausing) return; 2455 if (mNotSelectableToast == null) { 2456 String str = getResources().getString(R.string.not_selectable_in_scene_mode); 2457 mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT); 2458 } 2459 mNotSelectableToast.show(); 2460 } 2461 2462 private void onShareButtonClicked() { 2463 if (mPausing) return; 2464 2465 // Share the last captured picture. 2466 if (mThumbnailButton.getUri() != null) { 2467 Intent intent = new Intent(Intent.ACTION_SEND); 2468 intent.setType("image/jpeg"); 2469 intent.putExtra(Intent.EXTRA_STREAM, mThumbnailButton.getUri()); 2470 startActivity(Intent.createChooser(intent, getString(R.string.share_picture_via))); 2471 } else { // No last picture 2472 if (mNoShareToast == null) { 2473 mNoShareToast = Toast.makeText(this, 2474 getResources().getString(R.string.no_picture_to_share), Toast.LENGTH_SHORT); 2475 } 2476 mNoShareToast.show(); 2477 } 2478 } 2479 2480 private class MyIndicatorWheelListener implements IndicatorWheel.Listener { 2481 public void onSharedPreferenceChanged() { 2482 Camera.this.onSharedPreferenceChanged(); 2483 } 2484 2485 public void onRestorePreferencesClicked() { 2486 Camera.this.onRestorePreferencesClicked(); 2487 } 2488 2489 public void onOverriddenPreferencesClicked() { 2490 Camera.this.onOverriddenPreferencesClicked(); 2491 } 2492 2493 public void onShareButtonClicked() { 2494 Camera.this.onShareButtonClicked(); 2495 } 2496 } 2497 2498 private class MyCameraPickerListener implements CameraPicker.Listener { 2499 public void onSharedPreferenceChanged() { 2500 Camera.this.onSharedPreferenceChanged(); 2501 } 2502 } 2503} 2504