Camera.java revision 0d604e2af9eeed22685fd62e2281c2cd9728d58b
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; 254 255 private final Handler mHandler = new MainHandler(); 256 // xlarge devices use indicator wheel. Other devices use head-up display. 257 private CameraHeadUpDisplay mHeadUpDisplay; 258 private IndicatorWheel mIndicatorWheel; 259 private PreferenceGroup mPreferenceGroup; 260 261 // multiple cameras support 262 private int mNumberOfCameras; 263 private int mCameraId; 264 private int mFrontCameraId; 265 private int mBackCameraId; 266 267 private boolean mQuickCapture; 268 269 /** 270 * This Handler is used to post message back onto the main thread of the 271 * application 272 */ 273 private class MainHandler extends Handler { 274 @Override 275 public void handleMessage(Message msg) { 276 switch (msg.what) { 277 case RESTART_PREVIEW: { 278 restartPreview(); 279 if (mJpegPictureCallbackTime != 0) { 280 long now = System.currentTimeMillis(); 281 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 282 Log.v(TAG, "mJpegCallbackFinishTime = " 283 + mJpegCallbackFinishTime + "ms"); 284 mJpegPictureCallbackTime = 0; 285 } 286 break; 287 } 288 289 case CLEAR_SCREEN_DELAY: { 290 getWindow().clearFlags( 291 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 292 break; 293 } 294 295 case FIRST_TIME_INIT: { 296 initializeFirstTime(); 297 break; 298 } 299 300 case SET_CAMERA_PARAMETERS_WHEN_IDLE: { 301 setCameraParametersWhenIdle(0); 302 break; 303 } 304 305 case CHECK_DISPLAY_ROTATION: { 306 // Restart the preview if display rotation has changed. 307 // Sometimes this happens when the device is held upside 308 // down and camera app is opened. Rotation animation will 309 // take some time and the rotation value we have got may be 310 // wrong. Framework does not have a callback for this now. 311 if (Util.getDisplayRotation(Camera.this) != mDisplayRotation 312 && isCameraIdle()) { 313 restartPreview(); 314 } 315 if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) { 316 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 317 } 318 break; 319 } 320 321 case CANCEL_AUTOFOCUS: { 322 cancelAutoFocus(); 323 break; 324 } 325 } 326 } 327 } 328 329 private void resetExposureCompensation() { 330 String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, 331 CameraSettings.EXPOSURE_DEFAULT_VALUE); 332 if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { 333 Editor editor = mPreferences.edit(); 334 editor.putString(CameraSettings.KEY_EXPOSURE, "0"); 335 editor.apply(); 336 if (mHeadUpDisplay != null) { 337 mHeadUpDisplay.reloadPreferences(); 338 } 339 if (mIndicatorWheel != null) { 340 mIndicatorWheel.reloadPreferences(); 341 } 342 } 343 } 344 345 private void keepMediaProviderInstance() { 346 // We want to keep a reference to MediaProvider in camera's lifecycle. 347 // TODO: Utilize mMediaProviderClient instance to replace 348 // ContentResolver calls. 349 if (mMediaProviderClient == null) { 350 mMediaProviderClient = getContentResolver() 351 .acquireContentProviderClient(MediaStore.AUTHORITY); 352 } 353 } 354 355 // Snapshots can only be taken after this is called. It should be called 356 // once only. We could have done these things in onCreate() but we want to 357 // make preview screen appear as soon as possible. 358 private void initializeFirstTime() { 359 if (mFirstTimeInitialized) return; 360 361 // Create orientation listenter. This should be done first because it 362 // takes some time to get first orientation. 363 mOrientationListener = new MyOrientationEventListener(Camera.this); 364 mOrientationListener.enable(); 365 366 // Initialize location sevice. 367 mLocationManager = (LocationManager) 368 getSystemService(Context.LOCATION_SERVICE); 369 mRecordLocation = RecordLocationPreference.get( 370 mPreferences, getContentResolver()); 371 initGpsOnScreenIndicator(); 372 if (mRecordLocation) startReceivingLocationUpdates(); 373 374 keepMediaProviderInstance(); 375 checkStorage(); 376 377 // Initialize last picture button. 378 mContentResolver = getContentResolver(); 379 if (!mIsImageCaptureIntent) { 380 findViewById(R.id.camera_switch).setOnClickListener(this); 381 initThumbnailButton(); 382 } 383 384 // Initialize shutter button. 385 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 386 mShutterButton.setOnShutterButtonListener(this); 387 mShutterButton.setVisibility(View.VISIBLE); 388 389 // Initialize focus UI. 390 mPreviewFrame = findViewById(R.id.camera_preview); 391 mPreviewFrame.setOnTouchListener(this); 392 mPreviewBorder = (View) findViewById(R.id.preview_border); 393 // Set the length of focus rectangle according to preview frame size. 394 int len = Math.min(mPreviewFrame.getWidth(), mPreviewFrame.getHeight()) / 4; 395 ViewGroup.LayoutParams layout = mFocusRectangle.getLayoutParams(); 396 layout.width = len; 397 layout.height = len; 398 399 initializeScreenBrightness(); 400 installIntentFilter(); 401 initializeFocusTone(); 402 initializeZoom(); 403 // xlarge devices use indicator wheel. Other devices use head-up display. 404 if (mIndicatorWheel == null) { 405 mHeadUpDisplay = new CameraHeadUpDisplay(this); 406 mHeadUpDisplay.setListener(new MyHeadUpDisplayListener()); 407 initializeHeadUpDisplay(); 408 } 409 mFirstTimeInitialized = true; 410 changeHeadUpDisplayState(); 411 addIdleHandler(); 412 } 413 414 private void addIdleHandler() { 415 MessageQueue queue = Looper.myQueue(); 416 queue.addIdleHandler(new MessageQueue.IdleHandler() { 417 public boolean queueIdle() { 418 Storage.ensureOSXCompatible(); 419 return false; 420 } 421 }); 422 } 423 424 private void initThumbnailButton() { 425 mThumbnailButton = 426 (RotateImageView) findViewById(R.id.review_thumbnail); 427 if (mThumbnailButton != null) { 428 mThumbnailButton.setOnClickListener(this); 429 mThumbnailButton.loadData(LAST_THUMB_PATH); 430 updateThumbnailButton(); 431 } 432 } 433 434 private void updateThumbnailButton() { 435 if (mThumbnailButton == null) return; 436 // Update last image if URI is invalid and the storage is ready. 437 if (!mThumbnailButton.isUriValid() && mPicturesRemaining >= 0) { 438 Storage.Thumbnail thumbnail = 439 Storage.getLastImageThumbnail(mContentResolver); 440 if (thumbnail != null) { 441 mThumbnailButton.setData(thumbnail.getOriginalUri(), 442 thumbnail.getBitmap(mContentResolver)); 443 } else { 444 mThumbnailButton.setData(null, null); 445 } 446 } 447 mThumbnailButton.setVisibility( 448 (mThumbnailButton.getUri() != null) ? View.VISIBLE : View.GONE); 449 } 450 451 // If the activity is paused and resumed, this method will be called in 452 // onResume. 453 private void initializeSecondTime() { 454 // Start orientation listener as soon as possible because it takes 455 // some time to get first orientation. 456 mOrientationListener.enable(); 457 458 // Start location update if needed. 459 mRecordLocation = RecordLocationPreference.get( 460 mPreferences, getContentResolver()); 461 if (mRecordLocation) startReceivingLocationUpdates(); 462 463 installIntentFilter(); 464 initializeFocusTone(); 465 initializeZoom(); 466 changeHeadUpDisplayState(); 467 468 keepMediaProviderInstance(); 469 checkStorage(); 470 471 if (!mIsImageCaptureIntent) { 472 updateThumbnailButton(); 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(getZoomRatios()); 483 mZoomPicker.setZoomIndex(mParameters.getZoom()); 484 mZoomPicker.setSmoothZoomSupported(mSmoothZoomSupported); 485 mZoomPicker.setOnZoomChangeListener( 486 new ZoomPicker.OnZoomChangedListener() { 487 // only for immediate zoom 488 public void onZoomValueChanged(int index) { 489 Camera.this.onZoomValueChanged(index); 490 } 491 492 // only for smooth zoom 493 public void onZoomStateChanged(int state) { 494 if (mPausing) return; 495 496 Log.v(TAG, "zoom picker state=" + state); 497 if (state == mZoomPicker.ZOOM_IN) { 498 Camera.this.onZoomValueChanged(mZoomMax); 499 } else if (state == mZoomPicker.ZOOM_OUT){ 500 Camera.this.onZoomValueChanged(0); 501 } else { 502 mTargetZoomValue = -1; 503 if (mZoomState == ZOOM_START) { 504 mZoomState = ZOOM_STOPPING; 505 mCameraDevice.stopSmoothZoom(); 506 } 507 } 508 } 509 }); 510 } 511 512 mCameraDevice.setZoomChangeListener(mZoomListener); 513 } 514 515 private void onZoomValueChanged(int index) { 516 // Not useful to change zoom value when the activity is paused. 517 if (mPausing) return; 518 519 if (mSmoothZoomSupported) { 520 if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { 521 mTargetZoomValue = index; 522 if (mZoomState == ZOOM_START) { 523 mZoomState = ZOOM_STOPPING; 524 mCameraDevice.stopSmoothZoom(); 525 } 526 } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { 527 mTargetZoomValue = index; 528 mCameraDevice.startSmoothZoom(index); 529 mZoomState = ZOOM_START; 530 } 531 } else { 532 mZoomValue = index; 533 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 534 } 535 } 536 537 private float[] getZoomRatios() { 538 if(!mParameters.isZoomSupported()) return null; 539 List<Integer> zoomRatios = mParameters.getZoomRatios(); 540 float result[] = new float[zoomRatios.size()]; 541 for (int i = 0, n = result.length; i < n; ++i) { 542 result[i] = (float) zoomRatios.get(i) / 100f; 543 } 544 return result; 545 } 546 547 private class PopupGestureListener 548 extends GestureDetector.SimpleOnGestureListener { 549 public boolean onDown(MotionEvent e) { 550 // Check if the popup window is visible. 551 View popup = mIndicatorWheel.getActivePopupWindow(); 552 if (popup == null) return false; 553 554 555 // Let popup window, indicator wheel or preview frame handle the 556 // event by themselves. Dismiss the popup window if users touch on 557 // other areas. 558 if (!Util.pointInView(e.getX(), e.getY(), popup) 559 && !Util.pointInView(e.getX(), e.getY(), mIndicatorWheel) 560 && !Util.pointInView(e.getX(), e.getY(), mPreviewFrame)) { 561 mIndicatorWheel.dismissSettingPopup(); 562 // Let event fall through. 563 } 564 return false; 565 } 566 } 567 568 @Override 569 public boolean dispatchTouchEvent(MotionEvent m) { 570 // Check if the popup window should be dismissed first. 571 if (mPopupGestureDetector != null && mPopupGestureDetector.onTouchEvent(m)) { 572 return true; 573 } 574 575 return super.dispatchTouchEvent(m); 576 } 577 578 LocationListener [] mLocationListeners = new LocationListener[] { 579 new LocationListener(LocationManager.GPS_PROVIDER), 580 new LocationListener(LocationManager.NETWORK_PROVIDER) 581 }; 582 583 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 584 @Override 585 public void onReceive(Context context, Intent intent) { 586 String action = intent.getAction(); 587 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 588 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 589 || action.equals(Intent.ACTION_MEDIA_CHECKING)) { 590 checkStorage(); 591 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 592 checkStorage(); 593 if (!mIsImageCaptureIntent) { 594 updateThumbnailButton(); 595 } 596 } 597 } 598 }; 599 600 private void initializeCameraPicker() { 601 mCameraPicker = (CameraPicker) findViewById(R.id.camera_picker); 602 if (mCameraPicker != null) { 603 mCameraPicker.setImageResource(R.drawable.camera_toggle); 604 ListPreference pref = mPreferenceGroup.findPreference( 605 CameraSettings.KEY_CAMERA_ID); 606 if (pref != null) { 607 mCameraPicker.initialize(pref); 608 mCameraPicker.setListener(new MyCameraPickerListener()); 609 } 610 } 611 } 612 613 private void initGpsOnScreenIndicator() { 614 mGpsNoSignalView = findViewById(R.id.onscreen_gps_indicator_no_signal); 615 mGpsHasSignalView = findViewById(R.id.onscreen_gps_indicator_on); 616 } 617 618 private void showGpsOnScreenIndicator(boolean hasSignal) { 619 if (hasSignal) { 620 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.INVISIBLE); 621 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.VISIBLE); 622 } else { 623 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.VISIBLE); 624 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.INVISIBLE); 625 } 626 } 627 628 private void hideGpsOnScreenIndicator() { 629 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.INVISIBLE); 630 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.INVISIBLE); 631 } 632 633 private class LocationListener 634 implements android.location.LocationListener { 635 Location mLastLocation; 636 boolean mValid = false; 637 String mProvider; 638 639 public LocationListener(String provider) { 640 mProvider = provider; 641 mLastLocation = new Location(mProvider); 642 } 643 644 public void onLocationChanged(Location newLocation) { 645 if (newLocation.getLatitude() == 0.0 646 && newLocation.getLongitude() == 0.0) { 647 // Hack to filter out 0.0,0.0 locations 648 return; 649 } 650 // If GPS is available before start camera, we won't get status 651 // update so update GPS indicator when we receive data. 652 if (mRecordLocation 653 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 654 if (mHeadUpDisplay != null) { 655 mHeadUpDisplay.setGpsHasSignal(true); 656 } 657 showGpsOnScreenIndicator(true); 658 } 659 if (!mValid) { 660 Log.d(TAG, "Got first location."); 661 } 662 mLastLocation.set(newLocation); 663 mValid = true; 664 } 665 666 public void onProviderEnabled(String provider) { 667 } 668 669 public void onProviderDisabled(String provider) { 670 mValid = false; 671 } 672 673 public void onStatusChanged( 674 String provider, int status, Bundle extras) { 675 switch(status) { 676 case LocationProvider.OUT_OF_SERVICE: 677 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 678 mValid = false; 679 if (mRecordLocation && 680 LocationManager.GPS_PROVIDER.equals(provider)) { 681 if (mHeadUpDisplay != null) { 682 mHeadUpDisplay.setGpsHasSignal(false); 683 } 684 showGpsOnScreenIndicator(false); 685 } 686 break; 687 } 688 } 689 } 690 691 public Location current() { 692 return mValid ? mLastLocation : null; 693 } 694 } 695 696 private final class ShutterCallback 697 implements android.hardware.Camera.ShutterCallback { 698 public void onShutter() { 699 mShutterCallbackTime = System.currentTimeMillis(); 700 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 701 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 702 updateFocusUI(); 703 } 704 } 705 706 private final class PostViewPictureCallback implements PictureCallback { 707 public void onPictureTaken( 708 byte [] data, android.hardware.Camera camera) { 709 mPostViewPictureCallbackTime = System.currentTimeMillis(); 710 Log.v(TAG, "mShutterToPostViewCallbackTime = " 711 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 712 + "ms"); 713 } 714 } 715 716 private final class RawPictureCallback implements PictureCallback { 717 public void onPictureTaken( 718 byte [] rawData, android.hardware.Camera camera) { 719 mRawPictureCallbackTime = System.currentTimeMillis(); 720 Log.v(TAG, "mShutterToRawCallbackTime = " 721 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 722 } 723 } 724 725 private final class JpegPictureCallback implements PictureCallback { 726 Location mLocation; 727 728 public JpegPictureCallback(Location loc) { 729 mLocation = loc; 730 } 731 732 public void onPictureTaken( 733 final byte [] jpegData, final android.hardware.Camera camera) { 734 if (mPausing) { 735 return; 736 } 737 738 mJpegPictureCallbackTime = System.currentTimeMillis(); 739 // If postview callback has arrived, the captured image is displayed 740 // in postview callback. If not, the captured image is displayed in 741 // raw picture callback. 742 if (mPostViewPictureCallbackTime != 0) { 743 mShutterToPictureDisplayedTime = 744 mPostViewPictureCallbackTime - mShutterCallbackTime; 745 mPictureDisplayedToJpegCallbackTime = 746 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 747 } else { 748 mShutterToPictureDisplayedTime = 749 mRawPictureCallbackTime - mShutterCallbackTime; 750 mPictureDisplayedToJpegCallbackTime = 751 mJpegPictureCallbackTime - mRawPictureCallbackTime; 752 } 753 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 754 + mPictureDisplayedToJpegCallbackTime + "ms"); 755 756 if (!mIsImageCaptureIntent) { 757 enableCameraControls(true); 758 759 // We want to show the taken picture for a while, so we wait 760 // for at least 1.2 second before restarting the preview. 761 long delay = 1200 - mPictureDisplayedToJpegCallbackTime; 762 if (delay < 0) { 763 restartPreview(); 764 } else { 765 mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay); 766 } 767 } 768 storeImage(jpegData, camera, mLocation); 769 770 // Check this in advance of each shot so we don't add to shutter 771 // latency. It's true that someone else could write to the SD card in 772 // the mean time and fill it, but that could have happened between the 773 // shutter press and saving the JPEG too. 774 checkStorage(); 775 776 if (!mHandler.hasMessages(RESTART_PREVIEW)) { 777 long now = System.currentTimeMillis(); 778 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 779 Log.v(TAG, "mJpegCallbackFinishTime = " 780 + mJpegCallbackFinishTime + "ms"); 781 mJpegPictureCallbackTime = 0; 782 } 783 } 784 } 785 786 private final class AutoFocusCallback 787 implements android.hardware.Camera.AutoFocusCallback { 788 public void onAutoFocus( 789 boolean focused, android.hardware.Camera camera) { 790 mFocusCallbackTime = System.currentTimeMillis(); 791 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 792 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 793 if (mCameraState == FOCUSING_SNAP_ON_FINISH) { 794 // Take the picture no matter focus succeeds or fails. No need 795 // to play the AF sound if we're about to play the shutter 796 // sound. 797 if (focused) { 798 mCameraState = FOCUS_SUCCESS; 799 } else { 800 mCameraState = FOCUS_FAIL; 801 } 802 updateFocusUI(); 803 capture(); 804 } else if (mCameraState == FOCUSING) { 805 // This happens when (1) user is half-pressing the focus key or 806 // (2) touch focus is triggered. Play the focus tone. Do not 807 // take the picture now. 808 if (focused) { 809 mCameraState = FOCUS_SUCCESS; 810 if (mFocusToneGenerator != null) { 811 mFocusToneGenerator.startTone(ToneGenerator.TONE_PROP_BEEP2); 812 } 813 } else { 814 mCameraState = FOCUS_FAIL; 815 } 816 updateFocusUI(); 817 enableCameraControls(true); 818 // If this is triggered by touch focus, cancel focus after a 819 // while. 820 if (mFocusArea != null) { 821 mHandler.sendEmptyMessageDelayed(CANCEL_AUTOFOCUS, 3000); 822 } 823 } else if (mCameraState == IDLE) { 824 // User has released the focus key before focus completes. 825 // Do nothing. 826 } 827 828 } 829 } 830 831 private final class ZoomListener 832 implements android.hardware.Camera.OnZoomChangeListener { 833 public void onZoomChange( 834 int value, boolean stopped, android.hardware.Camera camera) { 835 Log.v(TAG, "Zoom changed: value=" + value + ". stopped="+ stopped); 836 mZoomValue = value; 837 838 // Update the UI when we get zoom value. 839 if (mZoomPicker != null) mZoomPicker.setZoomIndex(value); 840 841 // Keep mParameters up to date. We do not getParameter again in 842 // takePicture. If we do not do this, wrong zoom value will be set. 843 mParameters.setZoom(value); 844 845 if (stopped && mZoomState != ZOOM_STOPPED) { 846 if (mTargetZoomValue != -1 && value != mTargetZoomValue) { 847 mCameraDevice.startSmoothZoom(mTargetZoomValue); 848 mZoomState = ZOOM_START; 849 } else { 850 mZoomState = ZOOM_STOPPED; 851 } 852 } 853 } 854 } 855 856 public void storeImage(final byte[] data, 857 android.hardware.Camera camera, Location loc) { 858 if (!mIsImageCaptureIntent) { 859 long dateTaken = System.currentTimeMillis(); 860 String title = createName(dateTaken); 861 862 Storage.Thumbnail thumbnail = Storage.addImage( 863 mContentResolver, title, dateTaken, loc, data); 864 865 if (thumbnail != null && mThumbnailButton != null) { 866 mThumbnailButton.setData(thumbnail.getOriginalUri(), 867 thumbnail.getBitmap(mContentResolver)); 868 mThumbnailButton.setVisibility(View.VISIBLE); 869 870 sendBroadcast(new Intent("com.android.camera.NEW_PICTURE", 871 thumbnail.getOriginalUri())); 872 } 873 } else { 874 mJpegImageData = data; 875 if (!mQuickCapture) { 876 showPostCaptureAlert(); 877 } else { 878 doAttach(); 879 } 880 } 881 } 882 883 private void capture() { 884 // If we are already in the middle of taking a snapshot then ignore. 885 if (mPausing || mCameraState == SNAPSHOT_IN_PROGRESS || mCameraDevice == null) { 886 return; 887 } 888 mCaptureStartTime = System.currentTimeMillis(); 889 mPostViewPictureCallbackTime = 0; 890 enableCameraControls(false); 891 mJpegImageData = null; 892 893 // See android.hardware.Camera.Parameters.setRotation for 894 // documentation. 895 int rotation = 0; 896 if (mOrientation != OrientationEventListener.ORIENTATION_UNKNOWN) { 897 CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; 898 if (info.facing == CameraInfo.CAMERA_FACING_FRONT) { 899 rotation = (info.orientation - mOrientation + 360) % 360; 900 } else { // back-facing camera 901 rotation = (info.orientation + mOrientation) % 360; 902 } 903 } 904 mParameters.setRotation(rotation); 905 906 // Clear previous GPS location from the parameters. 907 mParameters.removeGpsData(); 908 909 // We always encode GpsTimeStamp 910 mParameters.setGpsTimestamp(System.currentTimeMillis() / 1000); 911 912 // Set GPS location. 913 Location loc = mRecordLocation ? getCurrentLocation() : null; 914 if (loc != null) { 915 double lat = loc.getLatitude(); 916 double lon = loc.getLongitude(); 917 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 918 919 if (hasLatLon) { 920 Log.d(TAG, "Set gps location"); 921 mParameters.setGpsLatitude(lat); 922 mParameters.setGpsLongitude(lon); 923 mParameters.setGpsProcessingMethod(loc.getProvider().toUpperCase()); 924 if (loc.hasAltitude()) { 925 mParameters.setGpsAltitude(loc.getAltitude()); 926 } else { 927 // for NETWORK_PROVIDER location provider, we may have 928 // no altitude information, but the driver needs it, so 929 // we fake one. 930 mParameters.setGpsAltitude(0); 931 } 932 if (loc.getTime() != 0) { 933 // Location.getTime() is UTC in milliseconds. 934 // gps-timestamp is UTC in seconds. 935 long utcTimeSeconds = loc.getTime() / 1000; 936 mParameters.setGpsTimestamp(utcTimeSeconds); 937 } 938 } else { 939 loc = null; 940 } 941 } 942 943 mCameraDevice.setParameters(mParameters); 944 945 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 946 mPostViewPictureCallback, new JpegPictureCallback(loc)); 947 mCameraState = SNAPSHOT_IN_PROGRESS; 948 mHandler.removeMessages(CANCEL_AUTOFOCUS); 949 } 950 951 private boolean saveDataToFile(String filePath, byte[] data) { 952 FileOutputStream f = null; 953 try { 954 f = new FileOutputStream(filePath); 955 f.write(data); 956 } catch (IOException e) { 957 return false; 958 } finally { 959 Util.closeSilently(f); 960 } 961 return true; 962 } 963 964 private String createName(long dateTaken) { 965 Date date = new Date(dateTaken); 966 SimpleDateFormat dateFormat = new SimpleDateFormat( 967 getString(R.string.image_file_name_format)); 968 969 return dateFormat.format(date); 970 } 971 972 @Override 973 public void onCreate(Bundle icicle) { 974 super.onCreate(icicle); 975 976 mIsImageCaptureIntent = isImageCaptureIntent(); 977 if (mIsImageCaptureIntent) { 978 setContentView(R.layout.camera_attach); 979 } else { 980 setContentView(R.layout.camera); 981 } 982 mSurfaceView = (SurfaceView) findViewById(R.id.camera_preview); 983 mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); 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 * To reduce startup time, we start the preview in another thread. 1006 * We make sure the preview is started at the end of onCreate. 1007 */ 1008 Thread startPreviewThread = new Thread(new Runnable() { 1009 public void run() { 1010 try { 1011 mStartPreviewFail = false; 1012 startPreview(); 1013 } catch (CameraHardwareException e) { 1014 // In eng build, we throw the exception so that test tool 1015 // can detect it and report it 1016 if ("eng".equals(Build.TYPE)) { 1017 throw new RuntimeException(e); 1018 } 1019 mStartPreviewFail = true; 1020 } 1021 } 1022 }); 1023 startPreviewThread.start(); 1024 1025 // don't set mSurfaceHolder here. We have it set ONLY within 1026 // surfaceChanged / surfaceDestroyed, other parts of the code 1027 // assume that when it is set, the surface is also set. 1028 SurfaceHolder holder = mSurfaceView.getHolder(); 1029 holder.addCallback(this); 1030 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 1031 1032 if (mIsImageCaptureIntent) { 1033 setupCaptureParams(); 1034 1035 View reviewControl = findViewById(R.id.review_control); 1036 reviewControl.setVisibility(View.VISIBLE); 1037 reviewControl.findViewById(R.id.btn_cancel).setOnClickListener(this); 1038 reviewControl.findViewById(R.id.btn_retake).setOnClickListener(this); 1039 reviewControl.findViewById(R.id.btn_done).setOnClickListener(this); 1040 } else { 1041 mSwitcher = (SwitcherSet) findViewById(R.id.camera_switch); 1042 mSwitcher.setVisibility(View.VISIBLE); 1043 mSwitcher.setOnSwitchListener(this); 1044 } 1045 1046 // Make sure preview is started. 1047 try { 1048 startPreviewThread.join(); 1049 if (mStartPreviewFail) { 1050 showCameraErrorAndFinish(); 1051 return; 1052 } 1053 } catch (InterruptedException ex) { 1054 // ignore 1055 } 1056 1057 mBackCameraId = CameraHolder.instance().getBackCameraId(); 1058 mFrontCameraId = CameraHolder.instance().getFrontCameraId(); 1059 1060 // Do this after starting preview because it depends on camera 1061 // parameters. 1062 initializeIndicatorWheel(); 1063 initializeCameraPicker(); 1064 1065 mZoomPicker = (ZoomPicker) findViewById(R.id.zoom_picker); 1066 if (mZoomPicker != null) mZoomPicker.setEnabled(true); // disabled initially in xml 1067 } 1068 1069 private void changeHeadUpDisplayState() { 1070 if (mHeadUpDisplay == null) return; 1071 // If the camera resumes behind the lock screen, the orientation 1072 // will be portrait. That causes OOM when we try to allocation GPU 1073 // memory for the GLSurfaceView again when the orientation changes. So, 1074 // we delayed initialization of HeadUpDisplay until the orientation 1075 // becomes landscape. 1076 Configuration config = getResources().getConfiguration(); 1077 if (config.orientation == Configuration.ORIENTATION_LANDSCAPE 1078 && !mPausing && mFirstTimeInitialized) { 1079 if (mGLRootView == null) attachHeadUpDisplay(); 1080 } else if (mGLRootView != null) { 1081 detachHeadUpDisplay(); 1082 } 1083 } 1084 1085 private void overrideCameraSettings(final String flashMode, 1086 final String whiteBalance, final String focusMode) { 1087 if (mHeadUpDisplay != null) { 1088 mHeadUpDisplay.overrideSettings( 1089 CameraSettings.KEY_FLASH_MODE, flashMode, 1090 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 1091 CameraSettings.KEY_FOCUS_MODE, focusMode); 1092 } 1093 if (mIndicatorWheel != null) { 1094 mIndicatorWheel.overrideSettings( 1095 CameraSettings.KEY_FLASH_MODE, flashMode, 1096 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 1097 CameraSettings.KEY_FOCUS_MODE, focusMode); 1098 } 1099 } 1100 1101 private void updateSceneModeUI() { 1102 // If scene mode is set, we cannot set flash mode, white balance, and 1103 // focus mode, instead, we read it from driver 1104 if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1105 overrideCameraSettings(mParameters.getFlashMode(), 1106 mParameters.getWhiteBalance(), mParameters.getFocusMode()); 1107 } else { 1108 overrideCameraSettings(null, null, null); 1109 } 1110 } 1111 1112 private void loadCameraPreferences() { 1113 CameraSettings settings = new CameraSettings(this, mInitialParams, 1114 mCameraId, CameraHolder.instance().getCameraInfo()); 1115 mPreferenceGroup = settings.getPreferenceGroup(R.xml.camera_preferences); 1116 } 1117 1118 private void initializeIndicatorWheel() { 1119 mIndicatorWheel = (IndicatorWheel) findViewById(R.id.indicator_wheel); 1120 if (mIndicatorWheel == null) return; 1121 loadCameraPreferences(); 1122 1123 String[] keys = new String[]{CameraSettings.KEY_FLASH_MODE, 1124 CameraSettings.KEY_WHITE_BALANCE, 1125 CameraSettings.KEY_COLOR_EFFECT, 1126 CameraSettings.KEY_SCENE_MODE}; 1127 mIndicatorWheel.initialize(this, mPreferenceGroup, keys, true); 1128 mIndicatorWheel.setListener(new MyIndicatorWheelListener()); 1129 mPopupGestureDetector = new GestureDetector(this, 1130 new PopupGestureListener()); 1131 updateSceneModeUI(); 1132 } 1133 1134 private void initializeHeadUpDisplay() { 1135 if (mHeadUpDisplay == null) return; 1136 loadCameraPreferences(); 1137 1138 // If we have zoom picker, do not show zoom control on head-up display. 1139 float[] zoomRatios = null; 1140 if (mZoomPicker == null) zoomRatios = getZoomRatios(); 1141 mHeadUpDisplay.initialize(this, mPreferenceGroup, 1142 zoomRatios, mOrientationCompensation); 1143 if (mZoomPicker == null && mParameters.isZoomSupported()) { 1144 mHeadUpDisplay.setZoomListener(new ZoomControllerListener() { 1145 public void onZoomChanged( 1146 int index, float ratio, boolean isMoving) { 1147 onZoomValueChanged(index); 1148 } 1149 }); 1150 } 1151 updateSceneModeUI(); 1152 } 1153 1154 private void attachHeadUpDisplay() { 1155 mHeadUpDisplay.setOrientation(mOrientationCompensation); 1156 if (mParameters.isZoomSupported()) { 1157 mHeadUpDisplay.setZoomIndex(mZoomValue); 1158 } 1159 ViewGroup frame = (ViewGroup) findViewById(R.id.frame); 1160 mGLRootView = new GLRootView(this); 1161 mGLRootView.setContentPane(mHeadUpDisplay); 1162 frame.addView(mGLRootView); 1163 } 1164 1165 private void detachHeadUpDisplay() { 1166 mHeadUpDisplay.setGpsHasSignal(false); 1167 mHeadUpDisplay.collapse(); 1168 ((ViewGroup) mGLRootView.getParent()).removeView(mGLRootView); 1169 mGLRootView = null; 1170 } 1171 1172 private boolean collapseCameraControls() { 1173 if (mHeadUpDisplay != null && mHeadUpDisplay.collapse()) { 1174 return true; 1175 } 1176 if (mIndicatorWheel != null && mIndicatorWheel.dismissSettingPopup()) { 1177 return true; 1178 } 1179 return false; 1180 } 1181 1182 private void enableCameraControls(boolean enable) { 1183 if (mHeadUpDisplay != null) mHeadUpDisplay.setEnabled(enable); 1184 if (mIndicatorWheel != null) mIndicatorWheel.setEnabled(enable); 1185 if (mCameraPicker != null) mCameraPicker.setEnabled(enable); 1186 if (mZoomPicker != null) mZoomPicker.setEnabled(enable); 1187 if (mSwitcher != null) mSwitcher.setEnabled(enable); 1188 } 1189 1190 public static int roundOrientation(int orientation) { 1191 return ((orientation + 45) / 90 * 90) % 360; 1192 } 1193 1194 private class MyOrientationEventListener 1195 extends OrientationEventListener { 1196 public MyOrientationEventListener(Context context) { 1197 super(context); 1198 } 1199 1200 @Override 1201 public void onOrientationChanged(int orientation) { 1202 // We keep the last known orientation. So if the user first orient 1203 // the camera then point the camera to floor or sky, we still have 1204 // the correct orientation. 1205 if (orientation == ORIENTATION_UNKNOWN) return; 1206 mOrientation = roundOrientation(orientation); 1207 // When the screen is unlocked, display rotation may change. Always 1208 // calculate the up-to-date orientationCompensation. 1209 int orientationCompensation = mOrientation 1210 + Util.getDisplayRotation(Camera.this); 1211 if (mOrientationCompensation != orientationCompensation) { 1212 mOrientationCompensation = orientationCompensation; 1213 if (!mIsImageCaptureIntent) { 1214 setOrientationIndicator(mOrientationCompensation); 1215 } 1216 if (mHeadUpDisplay != null) { 1217 mHeadUpDisplay.setOrientation(mOrientationCompensation); 1218 } 1219 } 1220 } 1221 } 1222 1223 private void setOrientationIndicator(int degree) { 1224 RotateImageView icon = (RotateImageView) findViewById( 1225 R.id.review_thumbnail); 1226 if (icon != null) icon.setDegree(degree); 1227 1228 icon = (RotateImageView) findViewById(R.id.camera_switch_icon); 1229 if (icon != null) icon.setDegree(degree); 1230 icon = (RotateImageView) findViewById(R.id.video_switch_icon); 1231 if (icon != null) icon.setDegree(degree); 1232 } 1233 1234 @Override 1235 public void onStart() { 1236 super.onStart(); 1237 if (!mIsImageCaptureIntent) { 1238 mSwitcher.setSwitch(SWITCH_CAMERA); 1239 } 1240 } 1241 1242 @Override 1243 public void onStop() { 1244 super.onStop(); 1245 if (mMediaProviderClient != null) { 1246 mMediaProviderClient.release(); 1247 mMediaProviderClient = null; 1248 } 1249 } 1250 1251 private void checkStorage() { 1252 mPicturesRemaining = Storage.getAvailableSpace(); 1253 if (mPicturesRemaining > 0) { 1254 mPicturesRemaining /= 1500000; 1255 } 1256 updateStorageHint(); 1257 } 1258 1259 public void onClick(View v) { 1260 switch (v.getId()) { 1261 case R.id.btn_retake: 1262 hidePostCaptureAlert(); 1263 restartPreview(); 1264 break; 1265 case R.id.review_thumbnail: 1266 if (isCameraIdle()) { 1267 viewImage(mThumbnailButton); 1268 } 1269 break; 1270 case R.id.btn_done: 1271 doAttach(); 1272 break; 1273 case R.id.btn_cancel: 1274 doCancel(); 1275 break; 1276 case R.id.btn_gallery: 1277 gotoGallery(); 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 1454 mPausing = false; 1455 mJpegPictureCallbackTime = 0; 1456 mZoomValue = 0; 1457 1458 // Start the preview if it is not started. 1459 if (mCameraState == PREVIEW_STOPPED && !mStartPreviewFail) { 1460 resetExposureCompensation(); 1461 if (!restartPreview()) return; 1462 } 1463 1464 if (mSurfaceHolder != null) { 1465 // If first time initialization is not finished, put it in the 1466 // message queue. 1467 if (!mFirstTimeInitialized) { 1468 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1469 } else { 1470 initializeSecondTime(); 1471 } 1472 } 1473 keepScreenOnAwhile(); 1474 1475 if (mCameraState == IDLE) { 1476 mOnResumeTime = SystemClock.uptimeMillis(); 1477 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 1478 } 1479 } 1480 1481 @Override 1482 public void onConfigurationChanged(Configuration config) { 1483 super.onConfigurationChanged(config); 1484 changeHeadUpDisplayState(); 1485 } 1486 1487 @Override 1488 protected void onPause() { 1489 mPausing = true; 1490 stopPreview(); 1491 // Close the camera now because other activities may need to use it. 1492 closeCamera(); 1493 resetScreenOn(); 1494 collapseCameraControls(); 1495 changeHeadUpDisplayState(); 1496 1497 if (mFirstTimeInitialized) { 1498 mOrientationListener.disable(); 1499 if (!mIsImageCaptureIntent) { 1500 if (mThumbnailButton != null) { 1501 mThumbnailButton.storeData(LAST_THUMB_PATH); 1502 } 1503 } 1504 hidePostCaptureAlert(); 1505 } 1506 1507 if (mDidRegister) { 1508 unregisterReceiver(mReceiver); 1509 mDidRegister = false; 1510 } 1511 stopReceivingLocationUpdates(); 1512 1513 if (mFocusToneGenerator != null) { 1514 mFocusToneGenerator.release(); 1515 mFocusToneGenerator = null; 1516 } 1517 1518 if (mStorageHint != null) { 1519 mStorageHint.cancel(); 1520 mStorageHint = null; 1521 } 1522 1523 // If we are in an image capture intent and has taken 1524 // a picture, we just clear it in onPause. 1525 mJpegImageData = null; 1526 1527 // Remove the messages in the event queue. 1528 mHandler.removeMessages(RESTART_PREVIEW); 1529 mHandler.removeMessages(FIRST_TIME_INIT); 1530 mHandler.removeMessages(CHECK_DISPLAY_ROTATION); 1531 mHandler.removeMessages(CANCEL_AUTOFOCUS); 1532 1533 super.onPause(); 1534 } 1535 1536 @Override 1537 protected void onActivityResult( 1538 int requestCode, int resultCode, Intent data) { 1539 switch (requestCode) { 1540 case CROP_MSG: { 1541 Intent intent = new Intent(); 1542 if (data != null) { 1543 Bundle extras = data.getExtras(); 1544 if (extras != null) { 1545 intent.putExtras(extras); 1546 } 1547 } 1548 setResultEx(resultCode, intent); 1549 finish(); 1550 1551 File path = getFileStreamPath(sTempCropFilename); 1552 path.delete(); 1553 1554 break; 1555 } 1556 } 1557 } 1558 1559 private boolean canTakePicture() { 1560 return isCameraIdle() && (mPicturesRemaining > 0); 1561 } 1562 1563 private void autoFocus() { 1564 Log.v(TAG, "Start autofocus."); 1565 mFocusStartTime = System.currentTimeMillis(); 1566 mCameraDevice.autoFocus(mAutoFocusCallback); 1567 mCameraState = FOCUSING; 1568 enableCameraControls(false); 1569 updateFocusUI(); 1570 mHandler.removeMessages(CANCEL_AUTOFOCUS); 1571 } 1572 1573 private void cancelAutoFocus() { 1574 Log.v(TAG, "Cancel autofocus."); 1575 mCameraDevice.cancelAutoFocus(); 1576 mCameraState = IDLE; 1577 enableCameraControls(true); 1578 resetTouchFocus(); 1579 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1580 updateFocusUI(); 1581 mHandler.removeMessages(CANCEL_AUTOFOCUS); 1582 } 1583 1584 private void updateFocusUI() { 1585 if (mCameraState == FOCUSING || mCameraState == FOCUSING_SNAP_ON_FINISH) { 1586 mFocusRectangle.showStart(); 1587 } else if (mCameraState == FOCUS_SUCCESS) { 1588 mFocusRectangle.showSuccess(); 1589 } else if (mCameraState == FOCUS_FAIL) { 1590 mFocusRectangle.showFail(); 1591 } else { 1592 mFocusRectangle.clear(); 1593 } 1594 } 1595 1596 // Preview area is touched. Handle touch focus. 1597 @Override 1598 public boolean onTouch(View v, MotionEvent e) { 1599 if (e.getAction() != MotionEvent.ACTION_DOWN) return false; 1600 1601 // Do not trigger touch focus when popup window is dismissed. 1602 if (collapseCameraControls()) return false; 1603 1604 if (mPausing || !mFirstTimeInitialized || !canTakePicture()) { 1605 return false; 1606 } 1607 1608 // Take a picture if metering area or focus area is supported. 1609 if (mParameters.getMaxNumMeteringAreas() == 0 1610 && (mParameters.getMaxNumFocusAreas() == 0 1611 || (!mFocusMode.equals(Parameters.FOCUS_MODE_AUTO) && 1612 !mFocusMode.equals(Parameters.FOCUS_MODE_MACRO) && 1613 !mFocusMode.equals(Parameters.FOCUS_MODE_CONTINUOUS_VIDEO)))) { 1614 return false; 1615 } 1616 1617 // Calculate the position of the focus rectangle. 1618 int x = Math.round(e.getX()); 1619 int y = Math.round(e.getY()); 1620 int focusWidth = mFocusRectangle.getWidth(); 1621 int focusHeight = mFocusRectangle.getHeight(); 1622 int left = Util.clamp(x - focusWidth / 2, 0, 1623 mPreviewFrame.getWidth() - focusWidth); 1624 int top = Util.clamp(y - focusHeight / 2, 0, 1625 mPreviewFrame.getHeight() - focusHeight); 1626 Log.d(TAG, "x=" + x + ". y=" + y); 1627 Log.d(TAG, "Margin left=" + left + ". top=" + top); 1628 Log.d(TAG, "Preview width=" + mPreviewFrame.getWidth() + 1629 ". height=" + mPreviewFrame.getHeight()); 1630 Log.d(TAG, "focusWidth=" + focusWidth + ". focusHeight=" + focusHeight); 1631 1632 // Convert the coordinates to driver format. The coordinates range from 1633 // -1000 to 1000. 1634 if (mFocusArea == null) { 1635 mFocusArea = new ArrayList<Area>(); 1636 mFocusArea.add(new Area(new Rect(), 1)); 1637 } 1638 Rect rect = mFocusArea.get(0).rect; 1639 convertToFocusArea(left, top, focusWidth, focusHeight, mPreviewFrame.getWidth(), 1640 mPreviewFrame.getHeight(), mFocusArea.get(0).rect); 1641 1642 // Use margin to set the focus rectangle to the touched area. 1643 RelativeLayout.LayoutParams p = 1644 (RelativeLayout.LayoutParams) mFocusRectangle.getLayoutParams(); 1645 p.setMargins(left + mPreviewBorder.getPaddingLeft(), 1646 top + mPreviewBorder.getPaddingTop(), 0, 0); 1647 // Disable "center" rule because we no longer want to put it in the center. 1648 int[] rules = p.getRules(); 1649 rules[RelativeLayout.CENTER_IN_PARENT] = 0; 1650 mFocusRectangle.requestLayout(); 1651 1652 // Set the focus area and do autofocus. 1653 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1654 autoFocus(); 1655 1656 return true; 1657 } 1658 1659 // Convert the touch point to the focus area in driver format. 1660 public static void convertToFocusArea(int left, int top, int focusWidth, int focusHeight, 1661 int previewWidth, int previewHeight, Rect rect) { 1662 rect.left = Math.round((float) left / previewWidth * 2000 - 1000); 1663 rect.top = Math.round((float) top / previewHeight * 2000 - 1000); 1664 rect.right = Math.round((float) (left + focusWidth) / previewWidth * 2000 - 1000); 1665 rect.bottom = Math.round((float) (top + focusHeight) / previewHeight * 2000 - 1000); 1666 } 1667 1668 void resetTouchFocus() { 1669 // Put focus rectangle to the center. 1670 RelativeLayout.LayoutParams p = 1671 (RelativeLayout.LayoutParams) mFocusRectangle.getLayoutParams(); 1672 int[] rules = p.getRules(); 1673 rules[RelativeLayout.CENTER_IN_PARENT] = RelativeLayout.TRUE; 1674 p.setMargins(0, 0, 0, 0); 1675 1676 mFocusArea = null; 1677 } 1678 1679 @Override 1680 public void onBackPressed() { 1681 if (!isCameraIdle()) { 1682 // ignore backs while we're taking a picture 1683 return; 1684 } else if (!collapseCameraControls()) { 1685 super.onBackPressed(); 1686 } 1687 } 1688 1689 @Override 1690 public boolean onKeyDown(int keyCode, KeyEvent event) { 1691 switch (keyCode) { 1692 case KeyEvent.KEYCODE_FOCUS: 1693 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1694 doFocus(true); 1695 } 1696 return true; 1697 case KeyEvent.KEYCODE_CAMERA: 1698 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1699 doSnap(); 1700 } 1701 return true; 1702 case KeyEvent.KEYCODE_DPAD_CENTER: 1703 // If we get a dpad center event without any focused view, move 1704 // the focus to the shutter button and press it. 1705 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1706 // Start auto-focus immediately to reduce shutter lag. After 1707 // the shutter button gets the focus, doFocus() will be 1708 // called again but it is fine. 1709 if (collapseCameraControls()) return true; 1710 doFocus(true); 1711 if (mShutterButton.isInTouchMode()) { 1712 mShutterButton.requestFocusFromTouch(); 1713 } else { 1714 mShutterButton.requestFocus(); 1715 } 1716 mShutterButton.setPressed(true); 1717 } 1718 return true; 1719 } 1720 1721 return super.onKeyDown(keyCode, event); 1722 } 1723 1724 @Override 1725 public boolean onKeyUp(int keyCode, KeyEvent event) { 1726 switch (keyCode) { 1727 case KeyEvent.KEYCODE_FOCUS: 1728 if (mFirstTimeInitialized) { 1729 doFocus(false); 1730 } 1731 return true; 1732 } 1733 return super.onKeyUp(keyCode, event); 1734 } 1735 1736 private void doSnap() { 1737 if (collapseCameraControls()) return; 1738 1739 Log.v(TAG, "doSnap: mCameraState=" + mCameraState); 1740 // If the user has half-pressed the shutter and focus is completed, we 1741 // can take the photo right away. If the focus mode is infinity, we can 1742 // also take the photo. 1743 if (mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1744 || mFocusMode.equals(Parameters.FOCUS_MODE_FIXED) 1745 || mFocusMode.equals(Parameters.FOCUS_MODE_EDOF) 1746 || (mCameraState == FOCUS_SUCCESS 1747 || mCameraState == FOCUS_FAIL)) { 1748 capture(); 1749 } else if (mCameraState == FOCUSING) { 1750 // Half pressing the shutter (i.e. the focus button event) will 1751 // already have requested AF for us, so just request capture on 1752 // focus here. 1753 mCameraState = FOCUSING_SNAP_ON_FINISH; 1754 } else if (mCameraState == IDLE) { 1755 // Focus key down event is dropped for some reasons. Just ignore. 1756 } 1757 } 1758 1759 private void doFocus(boolean pressed) { 1760 // Do the focus if the mode is not infinity. 1761 if (collapseCameraControls()) return; 1762 if (!(mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1763 || mFocusMode.equals(Parameters.FOCUS_MODE_FIXED) 1764 || mFocusMode.equals(Parameters.FOCUS_MODE_EDOF))) { 1765 if (pressed) { // Focus key down. 1766 // Do not do focus if there is not enoguh storage. Do not focus 1767 // if touch focus has been triggered, that is, camera state is 1768 // FOCUS_SUCCESS or FOCUS_FAIL. 1769 if (canTakePicture() && mCameraState != FOCUS_SUCCESS 1770 && mCameraState != FOCUS_FAIL) { 1771 autoFocus(); 1772 } 1773 } else { // Focus key up. 1774 // User releases half-pressed focus key. 1775 if (mCameraState == FOCUSING || mCameraState == FOCUS_SUCCESS 1776 || mCameraState == FOCUS_FAIL) { 1777 cancelAutoFocus(); 1778 } 1779 } 1780 } 1781 } 1782 1783 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1784 // Make sure we have a surface in the holder before proceeding. 1785 if (holder.getSurface() == null) { 1786 Log.d(TAG, "holder.getSurface() == null"); 1787 return; 1788 } 1789 1790 Log.v(TAG, "surfaceChanged. w=" + w + ". h=" + h); 1791 1792 // We need to save the holder for later use, even when the mCameraDevice 1793 // is null. This could happen if onResume() is invoked after this 1794 // function. 1795 mSurfaceHolder = holder; 1796 1797 // The mCameraDevice will be null if it fails to connect to the camera 1798 // hardware. In this case we will show a dialog and then finish the 1799 // activity, so it's OK to ignore it. 1800 if (mCameraDevice == null) return; 1801 1802 // Sometimes surfaceChanged is called after onPause or before onResume. 1803 // Ignore it. 1804 if (mPausing || isFinishing()) return; 1805 1806 // Set preview display if the surface is being created. Preview was 1807 // already started. Also restart the preview if display rotation has 1808 // changed. Sometimes this happens when the device is held in portrait 1809 // and camera app is opened. Rotation animation takes some time and 1810 // display rotation in onCreate may not be what we want. 1811 if (mCameraState != PREVIEW_STOPPED 1812 && (Util.getDisplayRotation(this) == mDisplayRotation) 1813 && holder.isCreating()) { 1814 // Set preview display if the surface is being created and preview 1815 // was already started. That means preview display was set to null 1816 // and we need to set it now. 1817 setPreviewDisplay(holder); 1818 } else { 1819 // 1. Restart the preview if the size of surface was changed. The 1820 // framework may not support changing preview display on the fly. 1821 // 2. Start the preview now if surface was destroyed and preview 1822 // stopped. 1823 restartPreview(); 1824 } 1825 1826 // If first time initialization is not finished, send a message to do 1827 // it later. We want to finish surfaceChanged as soon as possible to let 1828 // user see preview first. 1829 if (!mFirstTimeInitialized) { 1830 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1831 } else { 1832 initializeSecondTime(); 1833 } 1834 } 1835 1836 public void surfaceCreated(SurfaceHolder holder) { 1837 } 1838 1839 public void surfaceDestroyed(SurfaceHolder holder) { 1840 stopPreview(); 1841 mSurfaceHolder = null; 1842 } 1843 1844 private void closeCamera() { 1845 if (mCameraDevice != null) { 1846 CameraHolder.instance().release(); 1847 mCameraDevice.setZoomChangeListener(null); 1848 mCameraDevice = null; 1849 mCameraState = PREVIEW_STOPPED; 1850 } 1851 } 1852 1853 private void ensureCameraDevice() throws CameraHardwareException { 1854 if (mCameraDevice == null) { 1855 mCameraDevice = CameraHolder.instance().open(mCameraId); 1856 mInitialParams = mCameraDevice.getParameters(); 1857 } 1858 } 1859 1860 private void showCameraErrorAndFinish() { 1861 Resources ress = getResources(); 1862 Util.showFatalErrorAndFinish(Camera.this, 1863 ress.getString(R.string.camera_error_title), 1864 ress.getString(R.string.cannot_connect_camera)); 1865 } 1866 1867 private boolean restartPreview() { 1868 try { 1869 startPreview(); 1870 } catch (CameraHardwareException e) { 1871 showCameraErrorAndFinish(); 1872 return false; 1873 } 1874 return true; 1875 } 1876 1877 private void setPreviewDisplay(SurfaceHolder holder) { 1878 try { 1879 mCameraDevice.setPreviewDisplay(holder); 1880 } catch (Throwable ex) { 1881 closeCamera(); 1882 throw new RuntimeException("setPreviewDisplay failed", ex); 1883 } 1884 } 1885 1886 private void startPreview() throws CameraHardwareException { 1887 if (mPausing || isFinishing()) return; 1888 1889 resetTouchFocus(); 1890 1891 ensureCameraDevice(); 1892 mCameraDevice.setErrorCallback(mErrorCallback); 1893 1894 // If we're previewing already, stop the preview first (this will blank 1895 // the screen). 1896 if (mCameraState != PREVIEW_STOPPED) stopPreview(); 1897 1898 setPreviewDisplay(mSurfaceHolder); 1899 mDisplayRotation = Util.getDisplayRotation(this); 1900 Util.setCameraDisplayOrientation(mDisplayRotation, mCameraId, mCameraDevice); 1901 setCameraParameters(UPDATE_PARAM_ALL); 1902 1903 1904 try { 1905 Log.v(TAG, "startPreview"); 1906 mCameraDevice.startPreview(); 1907 } catch (Throwable ex) { 1908 closeCamera(); 1909 throw new RuntimeException("startPreview failed", ex); 1910 } 1911 mZoomState = ZOOM_STOPPED; 1912 mCameraState = IDLE; 1913 } 1914 1915 private void stopPreview() { 1916 if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) { 1917 Log.v(TAG, "stopPreview"); 1918 mCameraDevice.stopPreview(); 1919 } 1920 mCameraState = PREVIEW_STOPPED; 1921 // If auto focus was in progress, it would have been canceled. 1922 updateFocusUI(); 1923 } 1924 1925 private static boolean isSupported(String value, List<String> supported) { 1926 return supported == null ? false : supported.indexOf(value) >= 0; 1927 } 1928 1929 private void updateCameraParametersInitialize() { 1930 // Reset preview frame rate to the maximum because it may be lowered by 1931 // video camera application. 1932 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1933 if (frameRates != null) { 1934 Integer max = Collections.max(frameRates); 1935 mParameters.setPreviewFrameRate(max); 1936 } 1937 1938 } 1939 1940 private void updateCameraParametersZoom() { 1941 // Set zoom. 1942 if (mParameters.isZoomSupported()) { 1943 mParameters.setZoom(mZoomValue); 1944 } 1945 } 1946 1947 private void updateCameraParametersPreference() { 1948 if (mParameters.getMaxNumFocusAreas() > 0) { 1949 mParameters.setFocusAreas(mFocusArea); 1950 Log.d(TAG, "Parameter focus areas=" + mParameters.get("focus-areas")); 1951 } 1952 1953 if (mParameters.getMaxNumMeteringAreas() > 0) { 1954 // Use the same area for focus and metering. 1955 mParameters.setMeteringAreas(mFocusArea); 1956 } 1957 1958 // Set picture size. 1959 String pictureSize = mPreferences.getString( 1960 CameraSettings.KEY_PICTURE_SIZE, null); 1961 if (pictureSize == null) { 1962 CameraSettings.initialCameraPictureSize(this, mParameters); 1963 } else { 1964 List<Size> supported = mParameters.getSupportedPictureSizes(); 1965 CameraSettings.setCameraPictureSize( 1966 pictureSize, supported, mParameters); 1967 } 1968 1969 // Set the preview frame aspect ratio according to the picture size. 1970 Size size = mParameters.getPictureSize(); 1971 PreviewFrameLayout frameLayout = 1972 (PreviewFrameLayout) findViewById(R.id.frame_layout); 1973 frameLayout.setAspectRatio((double) size.width / size.height); 1974 1975 // Set a preview size that is closest to the viewfinder height and has 1976 // the right aspect ratio. 1977 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1978 Size optimalSize = Util.getOptimalPreviewSize(this, 1979 sizes, (double) size.width / size.height); 1980 Size original = mParameters.getPreviewSize(); 1981 if (!original.equals(optimalSize)) { 1982 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1983 1984 // Zoom related settings will be changed for different preview 1985 // sizes, so set and read the parameters to get lastest values 1986 mCameraDevice.setParameters(mParameters); 1987 mParameters = mCameraDevice.getParameters(); 1988 } 1989 Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height); 1990 1991 // Since change scene mode may change supported values, 1992 // Set scene mode first, 1993 mSceneMode = mPreferences.getString( 1994 CameraSettings.KEY_SCENE_MODE, 1995 getString(R.string.pref_camera_scenemode_default)); 1996 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 1997 if (!mParameters.getSceneMode().equals(mSceneMode)) { 1998 mParameters.setSceneMode(mSceneMode); 1999 mCameraDevice.setParameters(mParameters); 2000 2001 // Setting scene mode will change the settings of flash mode, 2002 // white balance, and focus mode. Here we read back the 2003 // parameters, so we can know those settings. 2004 mParameters = mCameraDevice.getParameters(); 2005 } 2006 } else { 2007 mSceneMode = mParameters.getSceneMode(); 2008 if (mSceneMode == null) { 2009 mSceneMode = Parameters.SCENE_MODE_AUTO; 2010 } 2011 } 2012 2013 // Set JPEG quality. 2014 String jpegQuality = mPreferences.getString( 2015 CameraSettings.KEY_JPEG_QUALITY, 2016 getString(R.string.pref_camera_jpegquality_default)); 2017 mParameters.setJpegQuality(JpegEncodingQualityMappings.getQualityNumber(jpegQuality)); 2018 2019 // For the following settings, we need to check if the settings are 2020 // still supported by latest driver, if not, ignore the settings. 2021 2022 // Set color effect parameter. 2023 String colorEffect = mPreferences.getString( 2024 CameraSettings.KEY_COLOR_EFFECT, 2025 getString(R.string.pref_camera_coloreffect_default)); 2026 if (isSupported(colorEffect, mParameters.getSupportedColorEffects())) { 2027 mParameters.setColorEffect(colorEffect); 2028 } 2029 2030 // Set exposure compensation 2031 String exposure = mPreferences.getString( 2032 CameraSettings.KEY_EXPOSURE, 2033 getString(R.string.pref_exposure_default)); 2034 try { 2035 int value = Integer.parseInt(exposure); 2036 int max = mParameters.getMaxExposureCompensation(); 2037 int min = mParameters.getMinExposureCompensation(); 2038 if (value >= min && value <= max) { 2039 mParameters.setExposureCompensation(value); 2040 } else { 2041 Log.w(TAG, "invalid exposure range: " + exposure); 2042 } 2043 } catch (NumberFormatException e) { 2044 Log.w(TAG, "invalid exposure: " + exposure); 2045 } 2046 2047 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 2048 // Set flash mode. 2049 String flashMode = mPreferences.getString( 2050 CameraSettings.KEY_FLASH_MODE, 2051 getString(R.string.pref_camera_flashmode_default)); 2052 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 2053 if (isSupported(flashMode, supportedFlash)) { 2054 mParameters.setFlashMode(flashMode); 2055 } else { 2056 flashMode = mParameters.getFlashMode(); 2057 if (flashMode == null) { 2058 flashMode = getString( 2059 R.string.pref_camera_flashmode_no_flash); 2060 } 2061 } 2062 2063 // Set white balance parameter. 2064 String whiteBalance = mPreferences.getString( 2065 CameraSettings.KEY_WHITE_BALANCE, 2066 getString(R.string.pref_camera_whitebalance_default)); 2067 if (isSupported(whiteBalance, 2068 mParameters.getSupportedWhiteBalance())) { 2069 mParameters.setWhiteBalance(whiteBalance); 2070 } else { 2071 whiteBalance = mParameters.getWhiteBalance(); 2072 if (whiteBalance == null) { 2073 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 2074 } 2075 } 2076 2077 // Set focus mode. 2078 mFocusMode = mPreferences.getString( 2079 CameraSettings.KEY_FOCUS_MODE, 2080 getString(R.string.pref_camera_focusmode_default)); 2081 if (isSupported(mFocusMode, mParameters.getSupportedFocusModes())) { 2082 mParameters.setFocusMode(mFocusMode); 2083 } else { 2084 mFocusMode = mParameters.getFocusMode(); 2085 if (mFocusMode == null) { 2086 mFocusMode = Parameters.FOCUS_MODE_AUTO; 2087 } 2088 } 2089 } else { 2090 mFocusMode = mParameters.getFocusMode(); 2091 } 2092 } 2093 2094 // We separate the parameters into several subsets, so we can update only 2095 // the subsets actually need updating. The PREFERENCE set needs extra 2096 // locking because the preference can be changed from GLThread as well. 2097 private void setCameraParameters(int updateSet) { 2098 mParameters = mCameraDevice.getParameters(); 2099 2100 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 2101 updateCameraParametersInitialize(); 2102 } 2103 2104 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 2105 updateCameraParametersZoom(); 2106 } 2107 2108 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 2109 updateCameraParametersPreference(); 2110 } 2111 2112 mCameraDevice.setParameters(mParameters); 2113 } 2114 2115 // If the Camera is idle, update the parameters immediately, otherwise 2116 // accumulate them in mUpdateSet and update later. 2117 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 2118 mUpdateSet |= additionalUpdateSet; 2119 if (mCameraDevice == null) { 2120 // We will update all the parameters when we open the device, so 2121 // we don't need to do anything now. 2122 mUpdateSet = 0; 2123 return; 2124 } else if (isCameraIdle()) { 2125 setCameraParameters(mUpdateSet); 2126 updateSceneModeUI(); 2127 mUpdateSet = 0; 2128 } else { 2129 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 2130 mHandler.sendEmptyMessageDelayed( 2131 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 2132 } 2133 } 2134 } 2135 2136 private void gotoGallery() { 2137 MenuHelper.gotoCameraImageGallery(this); 2138 } 2139 2140 private void viewImage(RotateImageView view) { 2141 if(!view.isUriValid()) { 2142 Log.e(TAG, "Uri invalid. uri=" + view.getUri()); 2143 return; 2144 } 2145 2146 try { 2147 startActivity(new Intent( 2148 Util.REVIEW_ACTION, view.getUri())); 2149 } catch (ActivityNotFoundException ex) { 2150 try { 2151 startActivity(new Intent( 2152 Intent.ACTION_VIEW, view.getUri())); 2153 } catch (ActivityNotFoundException e) { 2154 Log.e(TAG, "review image fail. uri=" + view.getUri(), e); 2155 } 2156 } 2157 } 2158 2159 private void startReceivingLocationUpdates() { 2160 if (mLocationManager != null) { 2161 try { 2162 mLocationManager.requestLocationUpdates( 2163 LocationManager.NETWORK_PROVIDER, 2164 1000, 2165 0F, 2166 mLocationListeners[1]); 2167 } catch (SecurityException ex) { 2168 Log.i(TAG, "fail to request location update, ignore", ex); 2169 } catch (IllegalArgumentException ex) { 2170 Log.d(TAG, "provider does not exist " + ex.getMessage()); 2171 } 2172 try { 2173 mLocationManager.requestLocationUpdates( 2174 LocationManager.GPS_PROVIDER, 2175 1000, 2176 0F, 2177 mLocationListeners[0]); 2178 showGpsOnScreenIndicator(false); 2179 } catch (SecurityException ex) { 2180 Log.i(TAG, "fail to request location update, ignore", ex); 2181 } catch (IllegalArgumentException ex) { 2182 Log.d(TAG, "provider does not exist " + ex.getMessage()); 2183 } 2184 Log.d(TAG, "startReceivingLocationUpdates"); 2185 } 2186 } 2187 2188 private void stopReceivingLocationUpdates() { 2189 if (mLocationManager != null) { 2190 for (int i = 0; i < mLocationListeners.length; i++) { 2191 try { 2192 mLocationManager.removeUpdates(mLocationListeners[i]); 2193 } catch (Exception ex) { 2194 Log.i(TAG, "fail to remove location listners, ignore", ex); 2195 } 2196 } 2197 Log.d(TAG, "stopReceivingLocationUpdates"); 2198 } 2199 hideGpsOnScreenIndicator(); 2200 } 2201 2202 private Location getCurrentLocation() { 2203 // go in best to worst order 2204 for (int i = 0; i < mLocationListeners.length; i++) { 2205 Location l = mLocationListeners[i].current(); 2206 if (l != null) return l; 2207 } 2208 Log.d(TAG, "No location received yet."); 2209 return null; 2210 } 2211 2212 private boolean isCameraIdle() { 2213 return mCameraState == IDLE || mCameraState == FOCUS_SUCCESS || mCameraState == FOCUS_FAIL; 2214 } 2215 2216 private boolean isImageCaptureIntent() { 2217 String action = getIntent().getAction(); 2218 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 2219 } 2220 2221 private void setupCaptureParams() { 2222 Bundle myExtras = getIntent().getExtras(); 2223 if (myExtras != null) { 2224 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 2225 mCropValue = myExtras.getString("crop"); 2226 } 2227 } 2228 2229 private void showPostCaptureAlert() { 2230 if (mIsImageCaptureIntent) { 2231 if (mIndicatorWheel == null) { 2232 mShutterButton.setVisibility(View.INVISIBLE); 2233 } else { 2234 mShutterButton.setEnabled(false); 2235 } 2236 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2237 for (int id : pickIds) { 2238 View button = findViewById(id); 2239 ((View) button.getParent()).setVisibility(View.VISIBLE); 2240 } 2241 2242 // Remove the text of the cancel button 2243 View view = findViewById(R.id.btn_cancel); 2244 if (view instanceof Button) ((Button) view).setText(""); 2245 } 2246 } 2247 2248 private void hidePostCaptureAlert() { 2249 if (mIsImageCaptureIntent) { 2250 if (mIndicatorWheel == null) { 2251 mShutterButton.setVisibility(View.VISIBLE); 2252 } else { 2253 mShutterButton.setEnabled(true); 2254 } 2255 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2256 for (int id : pickIds) { 2257 View button = findViewById(id); 2258 ((View) button.getParent()).setVisibility(View.GONE); 2259 } 2260 enableCameraControls(true); 2261 2262 // Restore the text of the cancel button 2263 View view = findViewById(R.id.btn_cancel); 2264 if (view instanceof Button) { 2265 ((Button) view).setText(R.string.review_cancel); 2266 } 2267 } 2268 } 2269 2270 @Override 2271 public boolean onPrepareOptionsMenu(Menu menu) { 2272 super.onPrepareOptionsMenu(menu); 2273 // Only show the menu when camera is idle. 2274 for (int i = 0; i < menu.size(); i++) { 2275 menu.getItem(i).setVisible(isCameraIdle()); 2276 } 2277 2278 return true; 2279 } 2280 2281 @Override 2282 public boolean onCreateOptionsMenu(Menu menu) { 2283 super.onCreateOptionsMenu(menu); 2284 2285 if (mIsImageCaptureIntent) { 2286 // No options menu for attach mode. 2287 return false; 2288 } else { 2289 addBaseMenuItems(menu); 2290 } 2291 return true; 2292 } 2293 2294 private void addBaseMenuItems(Menu menu) { 2295 MenuHelper.addSwitchModeMenuItem(menu, true, new Runnable() { 2296 public void run() { 2297 switchToVideoMode(); 2298 } 2299 }); 2300 MenuItem gallery = menu.add(Menu.NONE, Menu.NONE, 2301 MenuHelper.POSITION_GOTO_GALLERY, 2302 R.string.camera_gallery_photos_text) 2303 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2304 public boolean onMenuItemClick(MenuItem item) { 2305 gotoGallery(); 2306 return true; 2307 } 2308 }); 2309 gallery.setIcon(android.R.drawable.ic_menu_gallery); 2310 mGalleryItems.add(gallery); 2311 2312 if (mNumberOfCameras > 1) { 2313 menu.add(Menu.NONE, Menu.NONE, 2314 MenuHelper.POSITION_SWITCH_CAMERA_ID, 2315 R.string.switch_camera_id) 2316 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2317 public boolean onMenuItemClick(MenuItem item) { 2318 CameraSettings.writePreferredCameraId(mPreferences, 2319 ((mCameraId == mFrontCameraId) 2320 ? mBackCameraId : mFrontCameraId)); 2321 onSharedPreferenceChanged(); 2322 return true; 2323 } 2324 }).setIcon(android.R.drawable.ic_menu_camera); 2325 } 2326 } 2327 2328 private boolean switchToVideoMode() { 2329 if (isFinishing() || !isCameraIdle()) return false; 2330 MenuHelper.gotoVideoMode(Camera.this); 2331 mHandler.removeMessages(FIRST_TIME_INIT); 2332 finish(); 2333 return true; 2334 } 2335 2336 public boolean onSwitchChanged(Switcher source, boolean onOff) { 2337 if (onOff == SWITCH_VIDEO) { 2338 return switchToVideoMode(); 2339 } else { 2340 return true; 2341 } 2342 } 2343 2344 private void onSharedPreferenceChanged() { 2345 // ignore the events after "onPause()" 2346 if (mPausing) return; 2347 2348 boolean recordLocation; 2349 2350 recordLocation = RecordLocationPreference.get( 2351 mPreferences, getContentResolver()); 2352 2353 if (mRecordLocation != recordLocation) { 2354 mRecordLocation = recordLocation; 2355 if (mRecordLocation) { 2356 startReceivingLocationUpdates(); 2357 } else { 2358 stopReceivingLocationUpdates(); 2359 } 2360 } 2361 int cameraId = CameraSettings.readPreferredCameraId(mPreferences); 2362 if (mCameraId != cameraId) { 2363 // Restart the activity to have a crossfade animation. 2364 // TODO: Use SurfaceTexture to implement a better and faster 2365 // animation. 2366 if (mIsImageCaptureIntent) { 2367 // If the intent is camera capture, stay in camera capture mode. 2368 MenuHelper.gotoCameraMode(this, getIntent()); 2369 } else { 2370 MenuHelper.gotoCameraMode(this); 2371 } 2372 2373 finish(); 2374 } else { 2375 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 2376 } 2377 } 2378 2379 @Override 2380 public void onUserInteraction() { 2381 super.onUserInteraction(); 2382 keepScreenOnAwhile(); 2383 } 2384 2385 private void resetScreenOn() { 2386 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2387 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2388 } 2389 2390 private void keepScreenOnAwhile() { 2391 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2392 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2393 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2394 } 2395 2396 private class MyHeadUpDisplayListener implements HeadUpDisplay.Listener { 2397 2398 public void onSharedPreferenceChanged() { 2399 Camera.this.onSharedPreferenceChanged(); 2400 } 2401 2402 public void onRestorePreferencesClicked() { 2403 Camera.this.onRestorePreferencesClicked(); 2404 } 2405 2406 public void onPopupWindowVisibilityChanged(int visibility) { 2407 } 2408 } 2409 2410 protected void onRestorePreferencesClicked() { 2411 if (mPausing) return; 2412 Runnable runnable = new Runnable() { 2413 public void run() { 2414 restorePreferences(); 2415 } 2416 }; 2417 MenuHelper.confirmAction(this, 2418 getString(R.string.confirm_restore_title), 2419 getString(R.string.confirm_restore_message), 2420 runnable); 2421 } 2422 2423 private void restorePreferences() { 2424 // Reset the zoom. Zoom value is not stored in preference. 2425 if (mParameters.isZoomSupported()) { 2426 mZoomValue = 0; 2427 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 2428 if (mZoomPicker != null) mZoomPicker.setZoomIndex(0); 2429 } 2430 2431 if (mHeadUpDisplay != null) { 2432 mHeadUpDisplay.restorePreferences(mParameters); 2433 } 2434 2435 if (mIndicatorWheel != null) { 2436 mIndicatorWheel.dismissSettingPopup(); 2437 CameraSettings.restorePreferences(Camera.this, mPreferences, 2438 mParameters); 2439 initializeIndicatorWheel(); 2440 onSharedPreferenceChanged(); 2441 } 2442 } 2443 2444 protected void onOverriddenPreferencesClicked() { 2445 if (mPausing) return; 2446 if (mNotSelectableToast == null) { 2447 String str = getResources().getString(R.string.not_selectable_in_scene_mode); 2448 mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT); 2449 } 2450 mNotSelectableToast.cancel(); 2451 mNotSelectableToast.show(); 2452 } 2453 2454 private class MyIndicatorWheelListener implements IndicatorWheel.Listener { 2455 public void onSharedPreferenceChanged() { 2456 Camera.this.onSharedPreferenceChanged(); 2457 } 2458 2459 public void onRestorePreferencesClicked() { 2460 Camera.this.onRestorePreferencesClicked(); 2461 } 2462 2463 public void onOverriddenPreferencesClicked() { 2464 Camera.this.onOverriddenPreferencesClicked(); 2465 } 2466 } 2467 2468 private class MyCameraPickerListener implements CameraPicker.Listener { 2469 public void onSharedPreferenceChanged() { 2470 Camera.this.onSharedPreferenceChanged(); 2471 } 2472 } 2473} 2474