Camera.java revision 0980ef20897b2b83ee1ddce300044c121192f599
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.CameraPicker; 20import com.android.camera.ui.FocusRectangle; 21import com.android.camera.ui.IndicatorControl; 22import com.android.camera.ui.RotateImageView; 23import com.android.camera.ui.SharePopup; 24import com.android.camera.ui.ZoomPicker; 25 26import android.app.Activity; 27import android.content.BroadcastReceiver; 28import android.content.ContentProviderClient; 29import android.content.ContentResolver; 30import android.content.Context; 31import android.content.Intent; 32import android.content.IntentFilter; 33import android.content.SharedPreferences.Editor; 34import android.graphics.Bitmap; 35import android.graphics.Rect; 36import android.hardware.Camera.Area; 37import android.hardware.Camera.CameraInfo; 38import android.hardware.Camera.Parameters; 39import android.hardware.Camera.PictureCallback; 40import android.hardware.Camera.Size; 41import android.location.Location; 42import android.location.LocationManager; 43import android.location.LocationProvider; 44import android.media.AudioManager; 45import android.media.CameraProfile; 46import android.media.ToneGenerator; 47import android.net.Uri; 48import android.os.Bundle; 49import android.os.Handler; 50import android.os.Looper; 51import android.os.Message; 52import android.os.MessageQueue; 53import android.os.SystemClock; 54import android.provider.MediaStore; 55import android.provider.Settings; 56import android.util.Log; 57import android.view.GestureDetector; 58import android.view.Gravity; 59import android.view.KeyEvent; 60import android.view.Menu; 61import android.view.MenuItem; 62import android.view.MenuItem.OnMenuItemClickListener; 63import android.view.MotionEvent; 64import android.view.OrientationEventListener; 65import android.view.SurfaceHolder; 66import android.view.SurfaceView; 67import android.view.View; 68import android.view.ViewGroup; 69import android.view.Window; 70import android.view.WindowManager; 71import android.widget.Button; 72import android.widget.RelativeLayout; 73import android.widget.TextView; 74import android.widget.Toast; 75 76import java.io.File; 77import java.io.FileNotFoundException; 78import java.io.FileOutputStream; 79import java.io.IOException; 80import java.io.OutputStream; 81import java.text.SimpleDateFormat; 82import java.util.ArrayList; 83import java.util.Collections; 84import java.util.Date; 85import java.util.List; 86 87/** The Camera activity which can preview and take pictures. */ 88public class Camera extends ActivityBase implements View.OnClickListener, 89 View.OnTouchListener, ShutterButton.OnShutterButtonListener, 90 SurfaceHolder.Callback, ModePicker.OnModeChangeListener { 91 92 private static final String TAG = "camera"; 93 94 private static final String LAST_THUMB_FILENAME = "image_last_thumb"; 95 96 private static final int CROP_MSG = 1; 97 private static final int FIRST_TIME_INIT = 2; 98 private static final int RESTART_PREVIEW = 3; 99 private static final int CLEAR_SCREEN_DELAY = 4; 100 private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 5; 101 private static final int CHECK_DISPLAY_ROTATION = 6; 102 private static final int RESET_TOUCH_FOCUS = 7; 103 104 // The subset of parameters we need to update in setCameraParameters(). 105 private static final int UPDATE_PARAM_INITIALIZE = 1; 106 private static final int UPDATE_PARAM_ZOOM = 2; 107 private static final int UPDATE_PARAM_PREFERENCE = 4; 108 private static final int UPDATE_PARAM_ALL = -1; 109 110 // When setCameraParametersWhenIdle() is called, we accumulate the subsets 111 // needed to be updated in mUpdateSet. 112 private int mUpdateSet; 113 114 // The brightness settings used when it is set to automatic in the system. 115 // The reason why it is set to 0.7 is just because 1.0 is too bright. 116 private static final float DEFAULT_CAMERA_BRIGHTNESS = 0.7f; 117 118 private static final int SCREEN_DELAY = 2 * 60 * 1000; 119 private static final int FOCUS_BEEP_VOLUME = 100; 120 121 private static final int ZOOM_STOPPED = 0; 122 private static final int ZOOM_START = 1; 123 private static final int ZOOM_STOPPING = 2; 124 125 private int mZoomState = ZOOM_STOPPED; 126 private boolean mSmoothZoomSupported = false; 127 private int mZoomValue; // The current zoom value. 128 private int mZoomMax; 129 private int mTargetZoomValue; 130 private ZoomPicker mZoomPicker; 131 132 private Parameters mParameters; 133 private Parameters mInitialParams; 134 135 private MyOrientationEventListener mOrientationListener; 136 // The degrees of the device rotated clockwise from its natural orientation. 137 private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 138 // The orientation compensation for icons and thumbnails. Ex: if the value 139 // is 90, the UI components should be rotated 90 degrees counter-clockwise. 140 private int mOrientationCompensation = 0; 141 private ComboPreferences mPreferences; 142 143 private static final String sTempCropFilename = "crop-temp"; 144 145 private android.hardware.Camera mCameraDevice; 146 private ContentProviderClient mMediaProviderClient; 147 private SurfaceHolder mSurfaceHolder = null; 148 private ShutterButton mShutterButton; 149 private ToneGenerator mFocusToneGenerator; 150 private GestureDetector mPopupGestureDetector; 151 private boolean mOpenCameraFail = false; 152 private boolean mCameraDisabled = false; 153 154 private View mPreviewFrame; // Preview frame area. 155 private View mPreviewBorder; 156 private FocusRectangle mFocusRectangle; 157 private List<Area> mFocusArea; // focus area in driver format 158 private static final int RESET_TOUCH_FOCUS_DELAY = 3000; 159 160 // A popup window that contains a bigger thumbnail and a list of apps to share. 161 private SharePopup mSharePopup; 162 // The bitmap of the last captured picture thumbnail and the URI of the 163 // original picture. 164 private Thumbnail mThumbnail; 165 // A button that contains the thumbnail and the share icon. 166 private View mShareButton; 167 // An imageview showing showing the last captured picture thumbnail. 168 private RotateImageView mThumbnailView; 169 private RotateImageView mShareIcon; 170 private ModePicker mModePicker; 171 172 // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. 173 private String mCropValue; 174 private Uri mSaveUri; 175 176 // GPS on-screen indicator 177 private View mGpsNoSignalView; 178 private View mGpsHasSignalView; 179 180 // front/back camera switch. 181 private CameraPicker mCameraPicker; 182 183 /** 184 * An unpublished intent flag requesting to return as soon as capturing 185 * is completed. 186 * 187 * TODO: consider publishing by moving into MediaStore. 188 */ 189 private final static String EXTRA_QUICK_CAPTURE = 190 "android.intent.extra.quickCapture"; 191 192 // The display rotation in degrees. This is only valid when mCameraState is 193 // not PREVIEW_STOPPED. 194 private int mDisplayRotation; 195 // The value for android.hardware.Camera.setDisplayOrientation. 196 private int mDisplayOrientation; 197 private boolean mPausing; 198 private boolean mFirstTimeInitialized; 199 private boolean mIsImageCaptureIntent; 200 private boolean mRecordLocation; 201 202 private static final int PREVIEW_STOPPED = 0; 203 private static final int IDLE = 1; // preview is active 204 private static final int FOCUSING = 2; 205 private static final int FOCUSING_SNAP_ON_FINISH = 3; 206 private static final int FOCUS_SUCCESS = 4; 207 private static final int FOCUS_FAIL = 5; 208 private static final int SNAPSHOT_IN_PROGRESS = 6; 209 private int mCameraState = PREVIEW_STOPPED; 210 211 private ContentResolver mContentResolver; 212 private boolean mDidRegister = false; 213 214 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 215 216 private LocationManager mLocationManager = null; 217 218 private final ShutterCallback mShutterCallback = new ShutterCallback(); 219 private final PostViewPictureCallback mPostViewPictureCallback = 220 new PostViewPictureCallback(); 221 private final RawPictureCallback mRawPictureCallback = 222 new RawPictureCallback(); 223 private final AutoFocusCallback mAutoFocusCallback = 224 new AutoFocusCallback(); 225 private final ZoomListener mZoomListener = new ZoomListener(); 226 private FaceListener mFaceListener; 227 private final CameraErrorCallback mErrorCallback = new CameraErrorCallback(); 228 229 private long mFocusStartTime; 230 private long mFocusCallbackTime; 231 private long mCaptureStartTime; 232 private long mShutterCallbackTime; 233 private long mPostViewPictureCallbackTime; 234 private long mRawPictureCallbackTime; 235 private long mJpegPictureCallbackTime; 236 private long mOnResumeTime; 237 private long mPicturesRemaining; 238 private byte[] mJpegImageData; 239 240 // These latency time are for the CameraLatency test. 241 public long mAutoFocusTime; 242 public long mShutterLag; 243 public long mShutterToPictureDisplayedTime; 244 public long mPictureDisplayedToJpegCallbackTime; 245 public long mJpegCallbackFinishTime; 246 247 // Focus mode. Options are pref_camera_focusmode_entryvalues. 248 private String mFocusMode; 249 private String mSceneMode; 250 private Toast mNotSelectableToast; 251 private Toast mNoShareToast; 252 253 private final Handler mHandler = new MainHandler(); 254 private IndicatorControl mIndicatorControl; 255 private PreferenceGroup mPreferenceGroup; 256 257 // multiple cameras support 258 private int mNumberOfCameras; 259 private int mCameraId; 260 private int mFrontCameraId; 261 private int mBackCameraId; 262 263 private boolean mQuickCapture; 264 265 /** 266 * This Handler is used to post message back onto the main thread of the 267 * application 268 */ 269 private class MainHandler extends Handler { 270 @Override 271 public void handleMessage(Message msg) { 272 switch (msg.what) { 273 case RESTART_PREVIEW: { 274 startPreview(); 275 if (mJpegPictureCallbackTime != 0) { 276 long now = System.currentTimeMillis(); 277 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 278 Log.v(TAG, "mJpegCallbackFinishTime = " 279 + mJpegCallbackFinishTime + "ms"); 280 mJpegPictureCallbackTime = 0; 281 } 282 break; 283 } 284 285 case CLEAR_SCREEN_DELAY: { 286 getWindow().clearFlags( 287 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 288 break; 289 } 290 291 case FIRST_TIME_INIT: { 292 initializeFirstTime(); 293 break; 294 } 295 296 case SET_CAMERA_PARAMETERS_WHEN_IDLE: { 297 setCameraParametersWhenIdle(0); 298 break; 299 } 300 301 case CHECK_DISPLAY_ROTATION: { 302 // Restart the preview if display rotation has changed. 303 // Sometimes this happens when the device is held upside 304 // down and camera app is opened. Rotation animation will 305 // take some time and the rotation value we have got may be 306 // wrong. Framework does not have a callback for this now. 307 if (Util.getDisplayRotation(Camera.this) != mDisplayRotation 308 && isCameraIdle()) { 309 startPreview(); 310 } 311 if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) { 312 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 313 } 314 break; 315 } 316 317 case RESET_TOUCH_FOCUS: { 318 cancelAutoFocus(); 319 startFaceDetection(); 320 break; 321 } 322 } 323 } 324 } 325 326 private void resetExposureCompensation() { 327 String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, 328 CameraSettings.EXPOSURE_DEFAULT_VALUE); 329 if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { 330 Editor editor = mPreferences.edit(); 331 editor.putString(CameraSettings.KEY_EXPOSURE, "0"); 332 editor.apply(); 333 if (mIndicatorControl != null) { 334 mIndicatorControl.reloadPreferences(); 335 } 336 } 337 } 338 339 private void keepMediaProviderInstance() { 340 // We want to keep a reference to MediaProvider in camera's lifecycle. 341 // TODO: Utilize mMediaProviderClient instance to replace 342 // ContentResolver calls. 343 if (mMediaProviderClient == null) { 344 mMediaProviderClient = getContentResolver() 345 .acquireContentProviderClient(MediaStore.AUTHORITY); 346 } 347 } 348 349 // Snapshots can only be taken after this is called. It should be called 350 // once only. We could have done these things in onCreate() but we want to 351 // make preview screen appear as soon as possible. 352 private void initializeFirstTime() { 353 if (mFirstTimeInitialized) return; 354 355 // Create orientation listenter. This should be done first because it 356 // takes some time to get first orientation. 357 mOrientationListener = new MyOrientationEventListener(Camera.this); 358 mOrientationListener.enable(); 359 360 // Initialize location sevice. 361 mLocationManager = (LocationManager) 362 getSystemService(Context.LOCATION_SERVICE); 363 mRecordLocation = RecordLocationPreference.get( 364 mPreferences, getContentResolver()); 365 initGpsOnScreenIndicator(); 366 if (mRecordLocation) startReceivingLocationUpdates(); 367 368 keepMediaProviderInstance(); 369 checkStorage(); 370 371 // Initialize last picture button. 372 mContentResolver = getContentResolver(); 373 if (!mIsImageCaptureIntent) { // no thumbnail in image capture intent 374 initThumbnailButton(); 375 } 376 377 // Initialize shutter button. 378 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 379 mShutterButton.setOnShutterButtonListener(this); 380 mShutterButton.setVisibility(View.VISIBLE); 381 382 // Initialize focus UI. 383 mPreviewFrame = findViewById(R.id.camera_preview); 384 mPreviewFrame.setOnTouchListener(this); 385 mPreviewBorder = findViewById(R.id.preview_border); 386 // Set the length of focus rectangle according to preview frame size. 387 int len = Math.min(mPreviewFrame.getWidth(), mPreviewFrame.getHeight()) / 4; 388 ViewGroup.LayoutParams layout = mFocusRectangle.getLayoutParams(); 389 layout.width = len; 390 layout.height = len; 391 392 initializeScreenBrightness(); 393 installIntentFilter(); 394 initializeFocusTone(); 395 initializeZoom(); 396 startFaceDetection(); 397 mFirstTimeInitialized = true; 398 addIdleHandler(); 399 } 400 401 private void addIdleHandler() { 402 MessageQueue queue = Looper.myQueue(); 403 queue.addIdleHandler(new MessageQueue.IdleHandler() { 404 public boolean queueIdle() { 405 Storage.ensureOSXCompatible(); 406 return false; 407 } 408 }); 409 } 410 411 private void initThumbnailButton() { 412 mShareButton.setOnClickListener(this); 413 // Load the thumbnail from the disk. 414 mThumbnail = Thumbnail.loadFrom(new File(getFilesDir(), LAST_THUMB_FILENAME)); 415 updateThumbnailButton(); 416 } 417 418 private void updateThumbnailButton() { 419 // Update last image if URI is invalid and the storage is ready. 420 if ((mThumbnail == null || !Util.isUriValid(mThumbnail.getUri(), mContentResolver)) 421 && mPicturesRemaining >= 0) { 422 mThumbnail = Thumbnail.getLastImageThumbnail(mContentResolver); 423 } 424 if (mThumbnail != null) { 425 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 426 } else { 427 mThumbnailView.setBitmap(null); 428 } 429 } 430 431 // If the activity is paused and resumed, this method will be called in 432 // onResume. 433 private void initializeSecondTime() { 434 // Start orientation listener as soon as possible because it takes 435 // some time to get first orientation. 436 mOrientationListener.enable(); 437 438 // Start location update if needed. 439 mRecordLocation = RecordLocationPreference.get( 440 mPreferences, getContentResolver()); 441 if (mRecordLocation) startReceivingLocationUpdates(); 442 443 installIntentFilter(); 444 initializeFocusTone(); 445 initializeZoom(); 446 startFaceDetection(); 447 keepMediaProviderInstance(); 448 checkStorage(); 449 450 if (!mIsImageCaptureIntent) { 451 updateThumbnailButton(); 452 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 453 } 454 } 455 456 private void initializeZoom() { 457 if (!mParameters.isZoomSupported()) return; 458 459 mZoomMax = mParameters.getMaxZoom(); 460 mSmoothZoomSupported = mParameters.isSmoothZoomSupported(); 461 if (mZoomPicker != null) { 462 mZoomPicker.setZoomRatios(Util.convertZoomRatios(mParameters.getZoomRatios())); 463 mZoomPicker.setZoomIndex(mParameters.getZoom()); 464 mZoomPicker.setSmoothZoomSupported(mSmoothZoomSupported); 465 mZoomPicker.setOnZoomChangeListener( 466 new ZoomPicker.OnZoomChangedListener() { 467 // only for immediate zoom 468 @Override 469 public void onZoomValueChanged(int index) { 470 Camera.this.onZoomValueChanged(index); 471 } 472 473 // only for smooth zoom 474 @Override 475 public void onZoomStateChanged(int state) { 476 if (mPausing) return; 477 478 Log.v(TAG, "zoom picker state=" + state); 479 if (state == ZoomPicker.ZOOM_IN) { 480 Camera.this.onZoomValueChanged(mZoomMax); 481 } else if (state == ZoomPicker.ZOOM_OUT){ 482 Camera.this.onZoomValueChanged(0); 483 } else { 484 mTargetZoomValue = -1; 485 if (mZoomState == ZOOM_START) { 486 mZoomState = ZOOM_STOPPING; 487 mCameraDevice.stopSmoothZoom(); 488 } 489 } 490 } 491 }); 492 } 493 494 mCameraDevice.setZoomChangeListener(mZoomListener); 495 } 496 497 private void onZoomValueChanged(int index) { 498 // Not useful to change zoom value when the activity is paused. 499 if (mPausing) return; 500 501 if (mSmoothZoomSupported) { 502 if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { 503 mTargetZoomValue = index; 504 if (mZoomState == ZOOM_START) { 505 mZoomState = ZOOM_STOPPING; 506 mCameraDevice.stopSmoothZoom(); 507 } 508 } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { 509 mTargetZoomValue = index; 510 mCameraDevice.startSmoothZoom(index); 511 mZoomState = ZOOM_START; 512 } 513 } else { 514 mZoomValue = index; 515 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 516 } 517 } 518 519 private void startFaceDetection() { 520 if (mParameters.getMaxNumDetectedFaces( 521 android.hardware.Camera.CAMERA_FACE_DETECTION_HW) > 0) { 522 if (mFaceListener == null) { 523 mFaceListener = new FaceListener(this, 524 (ViewGroup) findViewById(R.id.frame), mDisplayOrientation); 525 } 526 mCameraDevice.setFaceDetectionListener(mFaceListener); 527 mCameraDevice.startFaceDetection(android.hardware.Camera.CAMERA_FACE_DETECTION_HW); 528 } 529 } 530 531 private void stopFaceDetection() { 532 if (mParameters.getMaxNumDetectedFaces( 533 android.hardware.Camera.CAMERA_FACE_DETECTION_HW) > 0) { 534 mCameraDevice.setFaceDetectionListener(null); 535 mCameraDevice.stopFaceDetection(); 536 } 537 } 538 539 private class PopupGestureListener 540 extends GestureDetector.SimpleOnGestureListener { 541 @Override 542 public boolean onDown(MotionEvent e) { 543 // Check if the popup window is visible. 544 View popup = mIndicatorControl.getActiveSettingPopup(); 545 if (popup == null) return false; 546 547 548 // Let popup window, indicator control or preview frame handle the 549 // event by themselves. Dismiss the popup window if users touch on 550 // other areas. 551 if (!Util.pointInView(e.getX(), e.getY(), popup) 552 && !Util.pointInView(e.getX(), e.getY(), mIndicatorControl) 553 && !Util.pointInView(e.getX(), e.getY(), mPreviewFrame)) { 554 mIndicatorControl.dismissSettingPopup(); 555 // Let event fall through. 556 } 557 return false; 558 } 559 } 560 561 @Override 562 public boolean dispatchTouchEvent(MotionEvent m) { 563 // Check if the popup window should be dismissed first. 564 if (mPopupGestureDetector != null && mPopupGestureDetector.onTouchEvent(m)) { 565 return true; 566 } 567 568 return super.dispatchTouchEvent(m); 569 } 570 571 LocationListener [] mLocationListeners = new LocationListener[] { 572 new LocationListener(LocationManager.GPS_PROVIDER), 573 new LocationListener(LocationManager.NETWORK_PROVIDER) 574 }; 575 576 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 577 @Override 578 public void onReceive(Context context, Intent intent) { 579 String action = intent.getAction(); 580 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 581 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 582 || action.equals(Intent.ACTION_MEDIA_CHECKING)) { 583 checkStorage(); 584 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 585 checkStorage(); 586 if (!mIsImageCaptureIntent) { 587 updateThumbnailButton(); 588 } 589 } 590 } 591 }; 592 593 private void initializeCameraPicker() { 594 mCameraPicker = (CameraPicker) findViewById(R.id.camera_picker); 595 if (mCameraPicker != null) { 596 mCameraPicker.setImageResource(R.drawable.camera_toggle); 597 ListPreference pref = mPreferenceGroup.findPreference( 598 CameraSettings.KEY_CAMERA_ID); 599 if (pref != null) { 600 mCameraPicker.initialize(pref); 601 mCameraPicker.setListener(new MyCameraPickerListener()); 602 } 603 } 604 } 605 606 private void initializeZoomPicker() { 607 View zoomIncrement = findViewById(R.id.zoom_increment); 608 View zoomDecrement = findViewById(R.id.zoom_decrement); 609 TextView zoomRatio = (TextView) findViewById(R.id.zoom_ratio); 610 if (zoomIncrement != null && zoomDecrement != null && mParameters.isZoomSupported()) { 611 mZoomPicker = new ZoomPicker(this, zoomIncrement, zoomDecrement, zoomRatio); 612 } 613 } 614 615 private void initGpsOnScreenIndicator() { 616 mGpsNoSignalView = findViewById(R.id.onscreen_gps_indicator_no_signal); 617 mGpsHasSignalView = findViewById(R.id.onscreen_gps_indicator_on); 618 } 619 620 private void showGpsOnScreenIndicator(boolean hasSignal) { 621 if (hasSignal) { 622 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.INVISIBLE); 623 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.VISIBLE); 624 } else { 625 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.VISIBLE); 626 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.INVISIBLE); 627 } 628 } 629 630 private void hideGpsOnScreenIndicator() { 631 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.INVISIBLE); 632 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.INVISIBLE); 633 } 634 635 private class LocationListener 636 implements android.location.LocationListener { 637 Location mLastLocation; 638 boolean mValid = false; 639 String mProvider; 640 641 public LocationListener(String provider) { 642 mProvider = provider; 643 mLastLocation = new Location(mProvider); 644 } 645 646 public void onLocationChanged(Location newLocation) { 647 if (newLocation.getLatitude() == 0.0 648 && newLocation.getLongitude() == 0.0) { 649 // Hack to filter out 0.0,0.0 locations 650 return; 651 } 652 // If GPS is available before start camera, we won't get status 653 // update so update GPS indicator when we receive data. 654 if (mRecordLocation 655 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 656 showGpsOnScreenIndicator(true); 657 } 658 if (!mValid) { 659 Log.d(TAG, "Got first location."); 660 } 661 mLastLocation.set(newLocation); 662 mValid = true; 663 } 664 665 public void onProviderEnabled(String provider) { 666 } 667 668 public void onProviderDisabled(String provider) { 669 mValid = false; 670 } 671 672 public void onStatusChanged( 673 String provider, int status, Bundle extras) { 674 switch(status) { 675 case LocationProvider.OUT_OF_SERVICE: 676 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 677 mValid = false; 678 if (mRecordLocation && 679 LocationManager.GPS_PROVIDER.equals(provider)) { 680 showGpsOnScreenIndicator(false); 681 } 682 break; 683 } 684 } 685 } 686 687 public Location current() { 688 return mValid ? mLastLocation : null; 689 } 690 } 691 692 private final class ShutterCallback 693 implements android.hardware.Camera.ShutterCallback { 694 public void onShutter() { 695 mShutterCallbackTime = System.currentTimeMillis(); 696 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 697 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 698 updateFocusUI(); 699 } 700 } 701 702 private final class PostViewPictureCallback implements PictureCallback { 703 public void onPictureTaken( 704 byte [] data, android.hardware.Camera camera) { 705 mPostViewPictureCallbackTime = System.currentTimeMillis(); 706 Log.v(TAG, "mShutterToPostViewCallbackTime = " 707 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 708 + "ms"); 709 } 710 } 711 712 private final class RawPictureCallback implements PictureCallback { 713 public void onPictureTaken( 714 byte [] rawData, android.hardware.Camera camera) { 715 mRawPictureCallbackTime = System.currentTimeMillis(); 716 Log.v(TAG, "mShutterToRawCallbackTime = " 717 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 718 } 719 } 720 721 private final class JpegPictureCallback implements PictureCallback { 722 Location mLocation; 723 724 public JpegPictureCallback(Location loc) { 725 mLocation = loc; 726 } 727 728 public void onPictureTaken( 729 final byte [] jpegData, final android.hardware.Camera camera) { 730 if (mPausing) { 731 return; 732 } 733 734 mJpegPictureCallbackTime = System.currentTimeMillis(); 735 // If postview callback has arrived, the captured image is displayed 736 // in postview callback. If not, the captured image is displayed in 737 // raw picture callback. 738 if (mPostViewPictureCallbackTime != 0) { 739 mShutterToPictureDisplayedTime = 740 mPostViewPictureCallbackTime - mShutterCallbackTime; 741 mPictureDisplayedToJpegCallbackTime = 742 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 743 } else { 744 mShutterToPictureDisplayedTime = 745 mRawPictureCallbackTime - mShutterCallbackTime; 746 mPictureDisplayedToJpegCallbackTime = 747 mJpegPictureCallbackTime - mRawPictureCallbackTime; 748 } 749 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 750 + mPictureDisplayedToJpegCallbackTime + "ms"); 751 752 if (!mIsImageCaptureIntent) { 753 enableCameraControls(true); 754 755 // We want to show the taken picture for a while, so we wait 756 // for at least 1.2 second before restarting the preview. 757 long delay = 1200 - mPictureDisplayedToJpegCallbackTime; 758 if (delay < 0) { 759 startPreview(); 760 } else { 761 mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay); 762 } 763 } 764 storeImage(jpegData, camera, mLocation); 765 766 // Check this in advance of each shot so we don't add to shutter 767 // latency. It's true that someone else could write to the SD card in 768 // the mean time and fill it, but that could have happened between the 769 // shutter press and saving the JPEG too. 770 checkStorage(); 771 772 if (!mHandler.hasMessages(RESTART_PREVIEW)) { 773 long now = System.currentTimeMillis(); 774 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 775 Log.v(TAG, "mJpegCallbackFinishTime = " 776 + mJpegCallbackFinishTime + "ms"); 777 mJpegPictureCallbackTime = 0; 778 } 779 } 780 } 781 782 private final class AutoFocusCallback 783 implements android.hardware.Camera.AutoFocusCallback { 784 public void onAutoFocus( 785 boolean focused, android.hardware.Camera camera) { 786 mFocusCallbackTime = System.currentTimeMillis(); 787 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 788 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 789 if (mCameraState == FOCUSING_SNAP_ON_FINISH) { 790 // Take the picture no matter focus succeeds or fails. No need 791 // to play the AF sound if we're about to play the shutter 792 // sound. 793 if (focused) { 794 mCameraState = FOCUS_SUCCESS; 795 } else { 796 mCameraState = FOCUS_FAIL; 797 } 798 updateFocusUI(); 799 capture(); 800 } else if (mCameraState == FOCUSING) { 801 // This happens when (1) user is half-pressing the focus key or 802 // (2) touch focus is triggered. Play the focus tone. Do not 803 // take the picture now. 804 if (focused) { 805 mCameraState = FOCUS_SUCCESS; 806 if (mFocusToneGenerator != null) { 807 mFocusToneGenerator.startTone(ToneGenerator.TONE_PROP_BEEP2); 808 } 809 } else { 810 mCameraState = FOCUS_FAIL; 811 } 812 updateFocusUI(); 813 enableCameraControls(true); 814 // If this is triggered by touch focus, cancel focus after a 815 // while. 816 if (mFocusArea != null) { 817 mHandler.sendEmptyMessageDelayed(RESET_TOUCH_FOCUS, RESET_TOUCH_FOCUS_DELAY); 818 } 819 } else if (mCameraState == IDLE) { 820 // User has released the focus key before focus completes. 821 // Do nothing. 822 } 823 824 } 825 } 826 827 private final class ZoomListener 828 implements android.hardware.Camera.OnZoomChangeListener { 829 @Override 830 public void onZoomChange( 831 int value, boolean stopped, android.hardware.Camera camera) { 832 Log.v(TAG, "Zoom changed: value=" + value + ". stopped="+ stopped); 833 mZoomValue = value; 834 835 // Update the UI when we get zoom value. 836 if (mZoomPicker != null) mZoomPicker.setZoomIndex(value); 837 838 // Keep mParameters up to date. We do not getParameter again in 839 // takePicture. If we do not do this, wrong zoom value will be set. 840 mParameters.setZoom(value); 841 842 if (stopped && mZoomState != ZOOM_STOPPED) { 843 if (mTargetZoomValue != -1 && value != mTargetZoomValue) { 844 mCameraDevice.startSmoothZoom(mTargetZoomValue); 845 mZoomState = ZOOM_START; 846 } else { 847 mZoomState = ZOOM_STOPPED; 848 } 849 } 850 } 851 } 852 853 public void storeImage(final byte[] data, 854 android.hardware.Camera camera, Location loc) { 855 if (!mIsImageCaptureIntent) { 856 long dateTaken = System.currentTimeMillis(); 857 String title = createName(dateTaken); 858 int orientation = Exif.getOrientation(data); 859 Uri uri = Storage.addImage(mContentResolver, title, dateTaken, 860 loc, orientation, data); 861 if (uri != null) { 862 // Create a thumbnail whose size is smaller than half of the surface view. 863 int ratio = (int) Math.ceil((double) mParameters.getPictureSize().width 864 / (mPreviewFrame.getWidth() / 2)); 865 int inSampleSize = Util.nextPowerOf2(ratio); 866 mThumbnail = Thumbnail.createThumbnail(data, orientation, inSampleSize, uri); 867 if (mThumbnail != null) { 868 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 869 } 870 871 sendBroadcast(new Intent(android.hardware.Camera.ACTION_NEW_PICTURE, uri)); 872 // Keep compatibility 873 sendBroadcast(new Intent("com.android.camera.NEW_PICTURE", uri)); 874 } 875 } else { 876 mJpegImageData = data; 877 if (!mQuickCapture) { 878 showPostCaptureAlert(); 879 } else { 880 doAttach(); 881 } 882 } 883 } 884 885 private void capture() { 886 // If we are already in the middle of taking a snapshot then ignore. 887 if (mPausing || mCameraState == SNAPSHOT_IN_PROGRESS || mCameraDevice == null) { 888 return; 889 } 890 mCaptureStartTime = System.currentTimeMillis(); 891 mPostViewPictureCallbackTime = 0; 892 enableCameraControls(false); 893 mJpegImageData = null; 894 895 // See android.hardware.Camera.Parameters.setRotation for 896 // documentation. 897 int rotation = 0; 898 if (mOrientation != OrientationEventListener.ORIENTATION_UNKNOWN) { 899 CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; 900 if (info.facing == CameraInfo.CAMERA_FACING_FRONT) { 901 rotation = (info.orientation - mOrientation + 360) % 360; 902 } else { // back-facing camera 903 rotation = (info.orientation + mOrientation) % 360; 904 } 905 } 906 mParameters.setRotation(rotation); 907 908 // Clear previous GPS location from the parameters. 909 mParameters.removeGpsData(); 910 911 // We always encode GpsTimeStamp 912 mParameters.setGpsTimestamp(System.currentTimeMillis() / 1000); 913 914 // Set GPS location. 915 Location loc = mRecordLocation ? getCurrentLocation() : null; 916 if (loc != null) { 917 double lat = loc.getLatitude(); 918 double lon = loc.getLongitude(); 919 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 920 921 if (hasLatLon) { 922 Log.d(TAG, "Set gps location"); 923 mParameters.setGpsLatitude(lat); 924 mParameters.setGpsLongitude(lon); 925 mParameters.setGpsProcessingMethod(loc.getProvider().toUpperCase()); 926 if (loc.hasAltitude()) { 927 mParameters.setGpsAltitude(loc.getAltitude()); 928 } else { 929 // for NETWORK_PROVIDER location provider, we may have 930 // no altitude information, but the driver needs it, so 931 // we fake one. 932 mParameters.setGpsAltitude(0); 933 } 934 if (loc.getTime() != 0) { 935 // Location.getTime() is UTC in milliseconds. 936 // gps-timestamp is UTC in seconds. 937 long utcTimeSeconds = loc.getTime() / 1000; 938 mParameters.setGpsTimestamp(utcTimeSeconds); 939 } 940 } else { 941 loc = null; 942 } 943 } 944 945 mCameraDevice.setParameters(mParameters); 946 947 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 948 mPostViewPictureCallback, new JpegPictureCallback(loc)); 949 mCameraState = SNAPSHOT_IN_PROGRESS; 950 mHandler.removeMessages(RESET_TOUCH_FOCUS); 951 } 952 953 private boolean saveDataToFile(String filePath, byte[] data) { 954 FileOutputStream f = null; 955 try { 956 f = new FileOutputStream(filePath); 957 f.write(data); 958 } catch (IOException e) { 959 return false; 960 } finally { 961 Util.closeSilently(f); 962 } 963 return true; 964 } 965 966 private String createName(long dateTaken) { 967 Date date = new Date(dateTaken); 968 SimpleDateFormat dateFormat = new SimpleDateFormat( 969 getString(R.string.image_file_name_format)); 970 971 return dateFormat.format(date); 972 } 973 974 @Override 975 public void onCreate(Bundle icicle) { 976 super.onCreate(icicle); 977 978 mIsImageCaptureIntent = isImageCaptureIntent(); 979 if (mIsImageCaptureIntent) { 980 setContentView(R.layout.camera_attach); 981 } else { 982 setContentView(R.layout.camera); 983 } 984 mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); 985 mShareButton = findViewById(R.id.share_button); 986 mThumbnailView = (RotateImageView) findViewById(R.id.thumbnail); 987 mShareIcon = (RotateImageView) findViewById(R.id.share_icon); 988 989 mPreferences = new ComboPreferences(this); 990 CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal()); 991 992 mCameraId = CameraSettings.readPreferredCameraId(mPreferences); 993 994 // Testing purpose. Launch a specific camera through the intent extras. 995 int intentCameraId = Util.getCameraFacingIntentExtras(this); 996 if (intentCameraId != -1) { 997 mCameraId = intentCameraId; 998 } 999 1000 mPreferences.setLocalId(this, mCameraId); 1001 CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); 1002 1003 mNumberOfCameras = CameraHolder.instance().getNumberOfCameras(); 1004 mQuickCapture = getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false); 1005 1006 // we need to reset exposure for the preview 1007 resetExposureCompensation(); 1008 1009 /* 1010 * To reduce startup time, we start the preview in another thread. 1011 * We make sure the preview is started at the end of onCreate. 1012 */ 1013 Thread startPreviewThread = new Thread(new Runnable() { 1014 public void run() { 1015 try { 1016 mCameraDevice = Util.openCamera(Camera.this, mCameraId); 1017 mInitialParams = mCameraDevice.getParameters(); 1018 startPreview(); 1019 } catch (CameraHardwareException e) { 1020 mOpenCameraFail = true; 1021 } catch (CameraDisabledException e) { 1022 mCameraDisabled = true; 1023 } 1024 } 1025 }); 1026 startPreviewThread.start(); 1027 1028 // don't set mSurfaceHolder here. We have it set ONLY within 1029 // surfaceChanged / surfaceDestroyed, other parts of the code 1030 // assume that when it is set, the surface is also set. 1031 SurfaceView preview = (SurfaceView) findViewById(R.id.camera_preview); 1032 SurfaceHolder holder = preview.getHolder(); 1033 holder.addCallback(this); 1034 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 1035 1036 if (mIsImageCaptureIntent) { 1037 setupCaptureParams(); 1038 1039 findViewById(R.id.review_control).setVisibility(View.VISIBLE); 1040 findViewById(R.id.btn_cancel).setOnClickListener(this); 1041 findViewById(R.id.btn_retake).setOnClickListener(this); 1042 findViewById(R.id.btn_done).setOnClickListener(this); 1043 } else { 1044 mModePicker = (ModePicker) findViewById(R.id.mode_picker); 1045 mModePicker.setVisibility(View.VISIBLE); 1046 mModePicker.setOnModeChangeListener(this); 1047 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 1048 } 1049 1050 // Make sure preview is started. 1051 try { 1052 startPreviewThread.join(); 1053 if (mOpenCameraFail) { 1054 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1055 return; 1056 } else if (mCameraDisabled) { 1057 Util.showErrorAndFinish(this, R.string.camera_disabled); 1058 return; 1059 } 1060 } catch (InterruptedException ex) { 1061 // ignore 1062 } 1063 1064 mBackCameraId = CameraHolder.instance().getBackCameraId(); 1065 mFrontCameraId = CameraHolder.instance().getFrontCameraId(); 1066 1067 // Do this after starting preview because it depends on camera 1068 // parameters. 1069 initializeIndicatorControl(); 1070 initializeZoomPicker(); 1071 initializeCameraPicker(); 1072 } 1073 1074 private void overrideCameraSettings(final String flashMode, 1075 final String whiteBalance, final String focusMode) { 1076 if (mIndicatorControl != null) { 1077 mIndicatorControl.overrideSettings( 1078 CameraSettings.KEY_FLASH_MODE, flashMode, 1079 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 1080 CameraSettings.KEY_FOCUS_MODE, focusMode); 1081 } 1082 } 1083 1084 private void updateSceneModeUI() { 1085 // If scene mode is set, we cannot set flash mode, white balance, and 1086 // focus mode, instead, we read it from driver 1087 if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1088 overrideCameraSettings(mParameters.getFlashMode(), 1089 mParameters.getWhiteBalance(), mParameters.getFocusMode()); 1090 } else { 1091 overrideCameraSettings(null, null, null); 1092 } 1093 } 1094 1095 private void loadCameraPreferences() { 1096 CameraSettings settings = new CameraSettings(this, mInitialParams, 1097 mCameraId, CameraHolder.instance().getCameraInfo()); 1098 mPreferenceGroup = settings.getPreferenceGroup(R.xml.camera_preferences); 1099 } 1100 1101 private void initializeIndicatorControl() { 1102 // setting the indicator buttons. 1103 mIndicatorControl = (IndicatorControl) findViewById(R.id.indicator_control); 1104 if (mIndicatorControl == null) return; 1105 loadCameraPreferences(); 1106 final String[] SETTING_KEYS, OTHER_SETTING_KEYS; 1107 if (Util.isTabletUI()) { 1108 SETTING_KEYS = new String[] { 1109 CameraSettings.KEY_FLASH_MODE}; 1110 OTHER_SETTING_KEYS = new String[] { 1111 CameraSettings.KEY_WHITE_BALANCE, 1112 CameraSettings.KEY_COLOR_EFFECT, 1113 CameraSettings.KEY_SCENE_MODE, 1114 CameraSettings.KEY_RECORD_LOCATION, 1115 CameraSettings.KEY_FOCUS_MODE, 1116 CameraSettings.KEY_EXPOSURE, 1117 CameraSettings.KEY_PICTURE_SIZE}; 1118 } else { 1119 SETTING_KEYS = new String[] { 1120 CameraSettings.KEY_FLASH_MODE, 1121 CameraSettings.KEY_COLOR_EFFECT, 1122 CameraSettings.KEY_WHITE_BALANCE}; 1123 OTHER_SETTING_KEYS = new String[] { 1124 CameraSettings.KEY_FOCUS_MODE, 1125 CameraSettings.KEY_EXPOSURE, 1126 CameraSettings.KEY_SCENE_MODE, 1127 CameraSettings.KEY_PICTURE_SIZE, 1128 CameraSettings.KEY_RECORD_LOCATION}; 1129 } 1130 mIndicatorControl.initialize(this, mPreferenceGroup, SETTING_KEYS, 1131 OTHER_SETTING_KEYS); 1132 mIndicatorControl.setListener(new MyIndicatorControlListener()); 1133 } 1134 1135 private boolean collapseCameraControls() { 1136 if (mIndicatorControl != null && mIndicatorControl.dismissSettingPopup()) { 1137 return true; 1138 } 1139 return false; 1140 } 1141 1142 private void enableCameraControls(boolean enable) { 1143 if (mIndicatorControl != null) mIndicatorControl.setEnabled(enable); 1144 if (mCameraPicker != null) mCameraPicker.setEnabled(enable); 1145 if (mZoomPicker != null) mZoomPicker.setEnabled(enable); 1146 if (mModePicker != null) mModePicker.setEnabled(enable); 1147 } 1148 1149 public static int roundOrientation(int orientation) { 1150 return ((orientation + 45) / 90 * 90) % 360; 1151 } 1152 1153 private class MyOrientationEventListener 1154 extends OrientationEventListener { 1155 public MyOrientationEventListener(Context context) { 1156 super(context); 1157 } 1158 1159 @Override 1160 public void onOrientationChanged(int orientation) { 1161 // We keep the last known orientation. So if the user first orient 1162 // the camera then point the camera to floor or sky, we still have 1163 // the correct orientation. 1164 if (orientation == ORIENTATION_UNKNOWN) return; 1165 mOrientation = roundOrientation(orientation); 1166 // When the screen is unlocked, display rotation may change. Always 1167 // calculate the up-to-date orientationCompensation. 1168 int orientationCompensation = mOrientation 1169 + Util.getDisplayRotation(Camera.this); 1170 if (mOrientationCompensation != orientationCompensation) { 1171 mOrientationCompensation = orientationCompensation; 1172 setOrientationIndicator(mOrientationCompensation); 1173 } 1174 } 1175 } 1176 1177 private void setOrientationIndicator(int degree) { 1178 if (mThumbnailView != null) mThumbnailView.setDegree(degree); 1179 if (mShareIcon != null) mShareIcon.setDegree(degree); 1180 if (mModePicker != null) mModePicker.setDegree(degree); 1181 if (mSharePopup != null) mSharePopup.setOrientation(degree); 1182 if (mIndicatorControl != null) mIndicatorControl.setDegree(degree); 1183 if (mCameraPicker != null) mCameraPicker.setDegree(degree); 1184 } 1185 1186 @Override 1187 public void onStop() { 1188 super.onStop(); 1189 if (mMediaProviderClient != null) { 1190 mMediaProviderClient.release(); 1191 mMediaProviderClient = null; 1192 } 1193 } 1194 1195 private void checkStorage() { 1196 mPicturesRemaining = Storage.getAvailableSpace(); 1197 if (mPicturesRemaining > 0) { 1198 mPicturesRemaining /= 1500000; 1199 } 1200 updateStorageHint(); 1201 } 1202 1203 @Override 1204 public void onClick(View v) { 1205 switch (v.getId()) { 1206 case R.id.share_button: 1207 if (isCameraIdle() && mThumbnail != null) { 1208 showSharePopup(); 1209 } 1210 break; 1211 case R.id.btn_retake: 1212 hidePostCaptureAlert(); 1213 startPreview(); 1214 break; 1215 case R.id.btn_done: 1216 doAttach(); 1217 break; 1218 case R.id.btn_cancel: 1219 doCancel(); 1220 break; 1221 } 1222 } 1223 1224 private void doAttach() { 1225 if (mPausing) { 1226 return; 1227 } 1228 1229 byte[] data = mJpegImageData; 1230 1231 if (mCropValue == null) { 1232 // First handle the no crop case -- just return the value. If the 1233 // caller specifies a "save uri" then write the data to it's 1234 // stream. Otherwise, pass back a scaled down version of the bitmap 1235 // directly in the extras. 1236 if (mSaveUri != null) { 1237 OutputStream outputStream = null; 1238 try { 1239 outputStream = mContentResolver.openOutputStream(mSaveUri); 1240 outputStream.write(data); 1241 outputStream.close(); 1242 1243 setResultEx(RESULT_OK); 1244 finish(); 1245 } catch (IOException ex) { 1246 // ignore exception 1247 } finally { 1248 Util.closeSilently(outputStream); 1249 } 1250 } else { 1251 int orientation = Exif.getOrientation(data); 1252 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1253 bitmap = Util.rotate(bitmap, orientation); 1254 setResultEx(RESULT_OK, 1255 new Intent("inline-data").putExtra("data", bitmap)); 1256 finish(); 1257 } 1258 } else { 1259 // Save the image to a temp file and invoke the cropper 1260 Uri tempUri = null; 1261 FileOutputStream tempStream = null; 1262 try { 1263 File path = getFileStreamPath(sTempCropFilename); 1264 path.delete(); 1265 tempStream = openFileOutput(sTempCropFilename, 0); 1266 tempStream.write(data); 1267 tempStream.close(); 1268 tempUri = Uri.fromFile(path); 1269 } catch (FileNotFoundException ex) { 1270 setResultEx(Activity.RESULT_CANCELED); 1271 finish(); 1272 return; 1273 } catch (IOException ex) { 1274 setResultEx(Activity.RESULT_CANCELED); 1275 finish(); 1276 return; 1277 } finally { 1278 Util.closeSilently(tempStream); 1279 } 1280 1281 Bundle newExtras = new Bundle(); 1282 if (mCropValue.equals("circle")) { 1283 newExtras.putString("circleCrop", "true"); 1284 } 1285 if (mSaveUri != null) { 1286 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1287 } else { 1288 newExtras.putBoolean("return-data", true); 1289 } 1290 1291 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1292 1293 cropIntent.setData(tempUri); 1294 cropIntent.putExtras(newExtras); 1295 1296 startActivityForResult(cropIntent, CROP_MSG); 1297 } 1298 } 1299 1300 private void doCancel() { 1301 setResultEx(RESULT_CANCELED, new Intent()); 1302 finish(); 1303 } 1304 1305 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1306 if (mPausing) { 1307 return; 1308 } 1309 switch (button.getId()) { 1310 case R.id.shutter_button: 1311 doFocus(pressed); 1312 break; 1313 } 1314 } 1315 1316 public void onShutterButtonClick(ShutterButton button) { 1317 if (mPausing) { 1318 return; 1319 } 1320 switch (button.getId()) { 1321 case R.id.shutter_button: 1322 doSnap(); 1323 break; 1324 } 1325 } 1326 1327 private OnScreenHint mStorageHint; 1328 1329 private void updateStorageHint() { 1330 String noStorageText = null; 1331 1332 if (mPicturesRemaining == Storage.UNAVAILABLE) { 1333 noStorageText = getString(R.string.no_storage); 1334 } else if (mPicturesRemaining == Storage.PREPARING) { 1335 noStorageText = getString(R.string.preparing_sd); 1336 } else if (mPicturesRemaining == Storage.UNKNOWN_SIZE) { 1337 noStorageText = getString(R.string.access_sd_fail); 1338 } else if (mPicturesRemaining < 1L) { 1339 noStorageText = getString(R.string.not_enough_space); 1340 } 1341 1342 if (noStorageText != null) { 1343 if (mStorageHint == null) { 1344 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1345 } else { 1346 mStorageHint.setText(noStorageText); 1347 } 1348 mStorageHint.show(); 1349 } else if (mStorageHint != null) { 1350 mStorageHint.cancel(); 1351 mStorageHint = null; 1352 } 1353 } 1354 1355 private void installIntentFilter() { 1356 // install an intent filter to receive SD card related events. 1357 IntentFilter intentFilter = 1358 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1359 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1360 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1361 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1362 intentFilter.addDataScheme("file"); 1363 registerReceiver(mReceiver, intentFilter); 1364 mDidRegister = true; 1365 } 1366 1367 private void initializeFocusTone() { 1368 // Initialize focus tone generator. 1369 try { 1370 mFocusToneGenerator = new ToneGenerator( 1371 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1372 } catch (Throwable ex) { 1373 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1374 mFocusToneGenerator = null; 1375 } 1376 } 1377 1378 private void initializeScreenBrightness() { 1379 Window win = getWindow(); 1380 // Overright the brightness settings if it is automatic 1381 int mode = Settings.System.getInt( 1382 getContentResolver(), 1383 Settings.System.SCREEN_BRIGHTNESS_MODE, 1384 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); 1385 if (mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC) { 1386 WindowManager.LayoutParams winParams = win.getAttributes(); 1387 winParams.screenBrightness = DEFAULT_CAMERA_BRIGHTNESS; 1388 win.setAttributes(winParams); 1389 } 1390 } 1391 1392 @Override 1393 protected void onResume() { 1394 super.onResume(); 1395 mPausing = false; 1396 if (mOpenCameraFail || mCameraDisabled) return; 1397 1398 mJpegPictureCallbackTime = 0; 1399 mZoomValue = 0; 1400 1401 // Start the preview if it is not started. 1402 if (mCameraState == PREVIEW_STOPPED) { 1403 try { 1404 mCameraDevice = Util.openCamera(this, mCameraId); 1405 mInitialParams = mCameraDevice.getParameters(); 1406 resetExposureCompensation(); 1407 startPreview(); 1408 } catch(CameraHardwareException e) { 1409 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1410 return; 1411 } catch(CameraDisabledException e) { 1412 Util.showErrorAndFinish(this, R.string.camera_disabled); 1413 return; 1414 } 1415 } 1416 1417 if (mSurfaceHolder != null) { 1418 // If first time initialization is not finished, put it in the 1419 // message queue. 1420 if (!mFirstTimeInitialized) { 1421 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1422 } else { 1423 initializeSecondTime(); 1424 } 1425 } 1426 keepScreenOnAwhile(); 1427 1428 if (mCameraState == IDLE) { 1429 mOnResumeTime = SystemClock.uptimeMillis(); 1430 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 1431 } 1432 } 1433 1434 @Override 1435 protected void onPause() { 1436 mPausing = true; 1437 stopPreview(); 1438 // Close the camera now because other activities may need to use it. 1439 closeCamera(); 1440 resetScreenOn(); 1441 collapseCameraControls(); 1442 1443 if (mFirstTimeInitialized) { 1444 mOrientationListener.disable(); 1445 if (!mIsImageCaptureIntent) { 1446 if (mThumbnail != null) { 1447 mThumbnail.saveTo(new File(getFilesDir(), LAST_THUMB_FILENAME)); 1448 } 1449 } 1450 hidePostCaptureAlert(); 1451 } 1452 1453 if (mSharePopup != null) mSharePopup.dismiss(); 1454 1455 if (mDidRegister) { 1456 unregisterReceiver(mReceiver); 1457 mDidRegister = false; 1458 } 1459 stopReceivingLocationUpdates(); 1460 1461 if (mFocusToneGenerator != null) { 1462 mFocusToneGenerator.release(); 1463 mFocusToneGenerator = null; 1464 } 1465 1466 if (mStorageHint != null) { 1467 mStorageHint.cancel(); 1468 mStorageHint = null; 1469 } 1470 1471 // If we are in an image capture intent and has taken 1472 // a picture, we just clear it in onPause. 1473 mJpegImageData = null; 1474 1475 // Remove the messages in the event queue. 1476 mHandler.removeMessages(RESTART_PREVIEW); 1477 mHandler.removeMessages(FIRST_TIME_INIT); 1478 mHandler.removeMessages(CHECK_DISPLAY_ROTATION); 1479 mHandler.removeMessages(RESET_TOUCH_FOCUS); 1480 1481 super.onPause(); 1482 } 1483 1484 @Override 1485 protected void onActivityResult( 1486 int requestCode, int resultCode, Intent data) { 1487 switch (requestCode) { 1488 case CROP_MSG: { 1489 Intent intent = new Intent(); 1490 if (data != null) { 1491 Bundle extras = data.getExtras(); 1492 if (extras != null) { 1493 intent.putExtras(extras); 1494 } 1495 } 1496 setResultEx(resultCode, intent); 1497 finish(); 1498 1499 File path = getFileStreamPath(sTempCropFilename); 1500 path.delete(); 1501 1502 break; 1503 } 1504 } 1505 } 1506 1507 private boolean canTakePicture() { 1508 return isCameraIdle() && (mPicturesRemaining > 0); 1509 } 1510 1511 private void autoFocus() { 1512 Log.v(TAG, "Start autofocus."); 1513 mFocusStartTime = System.currentTimeMillis(); 1514 mCameraDevice.autoFocus(mAutoFocusCallback); 1515 mCameraState = FOCUSING; 1516 enableCameraControls(false); 1517 updateFocusUI(); 1518 mHandler.removeMessages(RESET_TOUCH_FOCUS); 1519 } 1520 1521 private void cancelAutoFocus() { 1522 Log.v(TAG, "Cancel autofocus."); 1523 mCameraDevice.cancelAutoFocus(); 1524 mCameraState = IDLE; 1525 enableCameraControls(true); 1526 resetTouchFocus(); 1527 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1528 updateFocusUI(); 1529 mHandler.removeMessages(RESET_TOUCH_FOCUS); 1530 } 1531 1532 private void updateFocusUI() { 1533 if (mCameraState == FOCUSING || mCameraState == FOCUSING_SNAP_ON_FINISH) { 1534 mFocusRectangle.showStart(); 1535 } else if (mCameraState == FOCUS_SUCCESS) { 1536 mFocusRectangle.showSuccess(); 1537 } else if (mCameraState == FOCUS_FAIL) { 1538 mFocusRectangle.showFail(); 1539 } else if (mCameraState == IDLE && mFocusArea != null) { 1540 // Users touch on the preview and the rectangle indicates the metering area. 1541 // Either focus area is not supported or autoFocus call is not required. 1542 mFocusRectangle.showStart(); 1543 } else { 1544 mFocusRectangle.clear(); 1545 } 1546 } 1547 1548 // Preview area is touched. Handle touch focus. 1549 @Override 1550 public boolean onTouch(View v, MotionEvent e) { 1551 if (mPausing || !mFirstTimeInitialized || mCameraState == SNAPSHOT_IN_PROGRESS 1552 || mCameraState == FOCUSING_SNAP_ON_FINISH) { 1553 return false; 1554 } 1555 1556 // Do not trigger touch focus if popup window is opened. 1557 if (collapseCameraControls()) return false; 1558 1559 // Check if metering area or focus area is supported. 1560 boolean focusAreaSupported = (mParameters.getMaxNumFocusAreas() > 0 1561 && (mFocusMode.equals(Parameters.FOCUS_MODE_AUTO) || 1562 mFocusMode.equals(Parameters.FOCUS_MODE_MACRO) || 1563 mFocusMode.equals(Parameters.FOCUS_MODE_CONTINUOUS_VIDEO))); 1564 boolean meteringAreaSupported = (mParameters.getMaxNumMeteringAreas() > 0); 1565 if (!focusAreaSupported && !meteringAreaSupported) return false; 1566 1567 boolean callAutoFocusRequired = false; 1568 if (focusAreaSupported && 1569 (mFocusMode.equals(Parameters.FOCUS_MODE_AUTO) || 1570 mFocusMode.equals(Parameters.FOCUS_MODE_MACRO))) { 1571 callAutoFocusRequired = true; 1572 } 1573 1574 // Let users be able to cancel previous touch focus. 1575 if (callAutoFocusRequired && mFocusArea != null && e.getAction() == MotionEvent.ACTION_DOWN 1576 && (mCameraState == FOCUSING || mCameraState == FOCUS_SUCCESS || 1577 mCameraState == FOCUS_FAIL)) { 1578 cancelAutoFocus(); 1579 } 1580 1581 // Initialize variables. 1582 int x = Math.round(e.getX()); 1583 int y = Math.round(e.getY()); 1584 int focusWidth = mFocusRectangle.getWidth(); 1585 int focusHeight = mFocusRectangle.getHeight(); 1586 int previewWidth = mPreviewFrame.getWidth(); 1587 int previewHeight = mPreviewFrame.getHeight(); 1588 if (mFocusArea == null) { 1589 mFocusArea = new ArrayList<Area>(); 1590 mFocusArea.add(new Area(new Rect(), 1)); 1591 } 1592 1593 // Convert the coordinates to driver format. The actual focus area is two times bigger than 1594 // UI because a huge rectangle looks strange. 1595 int areaWidth = focusWidth * 2; 1596 int areaHeight = focusHeight * 2; 1597 int areaLeft = Util.clamp(x - areaWidth / 2, 0, previewWidth - areaWidth); 1598 int areaTop = Util.clamp(y - areaHeight / 2, 0, previewHeight - areaHeight); 1599 Rect rect = mFocusArea.get(0).rect; 1600 convertToFocusArea(areaLeft, areaTop, areaWidth, areaHeight, previewWidth, previewHeight, 1601 mFocusArea.get(0).rect); 1602 1603 // Use margin to set the focus rectangle to the touched area. 1604 RelativeLayout.LayoutParams p = 1605 (RelativeLayout.LayoutParams) mFocusRectangle.getLayoutParams(); 1606 int left = Util.clamp(x - focusWidth / 2, 0, previewWidth - focusWidth); 1607 int top = Util.clamp(y - focusHeight / 2, 0, previewHeight - focusHeight); 1608 p.setMargins(left, top, 0, 0); 1609 // Disable "center" rule because we no longer want to put it in the center. 1610 int[] rules = p.getRules(); 1611 rules[RelativeLayout.CENTER_IN_PARENT] = 0; 1612 mFocusRectangle.requestLayout(); 1613 1614 // Stop face detection because we want to specify focus and metering area. 1615 stopFaceDetection(); 1616 1617 // Set the focus area and metering area. 1618 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1619 if (callAutoFocusRequired && e.getAction() == MotionEvent.ACTION_UP) { 1620 autoFocus(); 1621 } else { // Just show the rectangle in all other cases. 1622 updateFocusUI(); 1623 // Reset the metering area in 3 seconds. 1624 mHandler.removeMessages(RESET_TOUCH_FOCUS); 1625 mHandler.sendEmptyMessageDelayed(RESET_TOUCH_FOCUS, RESET_TOUCH_FOCUS_DELAY); 1626 } 1627 1628 return true; 1629 } 1630 1631 // Convert the touch point to the focus area in driver format. 1632 public static void convertToFocusArea(int left, int top, int focusWidth, int focusHeight, 1633 int previewWidth, int previewHeight, Rect rect) { 1634 rect.left = Math.round((float) left / previewWidth * 2000 - 1000); 1635 rect.top = Math.round((float) top / previewHeight * 2000 - 1000); 1636 rect.right = Math.round((float) (left + focusWidth) / previewWidth * 2000 - 1000); 1637 rect.bottom = Math.round((float) (top + focusHeight) / previewHeight * 2000 - 1000); 1638 } 1639 1640 void resetTouchFocus() { 1641 // Put focus rectangle to the center. 1642 RelativeLayout.LayoutParams p = 1643 (RelativeLayout.LayoutParams) mFocusRectangle.getLayoutParams(); 1644 int[] rules = p.getRules(); 1645 rules[RelativeLayout.CENTER_IN_PARENT] = RelativeLayout.TRUE; 1646 p.setMargins(0, 0, 0, 0); 1647 1648 mFocusArea = null; 1649 } 1650 1651 @Override 1652 public void onBackPressed() { 1653 if (!isCameraIdle()) { 1654 // ignore backs while we're taking a picture 1655 return; 1656 } else if (!collapseCameraControls()) { 1657 super.onBackPressed(); 1658 } 1659 } 1660 1661 @Override 1662 public boolean onKeyDown(int keyCode, KeyEvent event) { 1663 switch (keyCode) { 1664 case KeyEvent.KEYCODE_FOCUS: 1665 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1666 doFocus(true); 1667 } 1668 return true; 1669 case KeyEvent.KEYCODE_CAMERA: 1670 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1671 doSnap(); 1672 } 1673 return true; 1674 case KeyEvent.KEYCODE_DPAD_CENTER: 1675 // If we get a dpad center event without any focused view, move 1676 // the focus to the shutter button and press it. 1677 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1678 // Start auto-focus immediately to reduce shutter lag. After 1679 // the shutter button gets the focus, doFocus() will be 1680 // called again but it is fine. 1681 if (collapseCameraControls()) return true; 1682 doFocus(true); 1683 if (mShutterButton.isInTouchMode()) { 1684 mShutterButton.requestFocusFromTouch(); 1685 } else { 1686 mShutterButton.requestFocus(); 1687 } 1688 mShutterButton.setPressed(true); 1689 } 1690 return true; 1691 } 1692 1693 return super.onKeyDown(keyCode, event); 1694 } 1695 1696 @Override 1697 public boolean onKeyUp(int keyCode, KeyEvent event) { 1698 switch (keyCode) { 1699 case KeyEvent.KEYCODE_FOCUS: 1700 if (mFirstTimeInitialized) { 1701 doFocus(false); 1702 } 1703 return true; 1704 } 1705 return super.onKeyUp(keyCode, event); 1706 } 1707 1708 private void doSnap() { 1709 if (collapseCameraControls()) return; 1710 1711 Log.v(TAG, "doSnap: mCameraState=" + mCameraState); 1712 // If the user has half-pressed the shutter and focus is completed, we 1713 // can take the photo right away. If the focus mode is infinity, we can 1714 // also take the photo. 1715 if (mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1716 || mFocusMode.equals(Parameters.FOCUS_MODE_FIXED) 1717 || mFocusMode.equals(Parameters.FOCUS_MODE_EDOF) 1718 || (mCameraState == FOCUS_SUCCESS 1719 || mCameraState == FOCUS_FAIL)) { 1720 capture(); 1721 } else if (mCameraState == FOCUSING) { 1722 // Half pressing the shutter (i.e. the focus button event) will 1723 // already have requested AF for us, so just request capture on 1724 // focus here. 1725 mCameraState = FOCUSING_SNAP_ON_FINISH; 1726 } else if (mCameraState == IDLE) { 1727 // Focus key down event is dropped for some reasons. Just ignore. 1728 } 1729 } 1730 1731 private void doFocus(boolean pressed) { 1732 // Do the focus if the mode is not infinity. 1733 if (collapseCameraControls()) return; 1734 if (!(mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1735 || mFocusMode.equals(Parameters.FOCUS_MODE_FIXED) 1736 || mFocusMode.equals(Parameters.FOCUS_MODE_EDOF))) { 1737 if (pressed) { // Focus key down. 1738 // Do not do focus if there is not enoguh storage. Do not focus 1739 // if touch focus has been triggered, that is, camera state is 1740 // FOCUS_SUCCESS or FOCUS_FAIL. 1741 if (canTakePicture() && mCameraState != FOCUS_SUCCESS 1742 && mCameraState != FOCUS_FAIL) { 1743 autoFocus(); 1744 } 1745 } else { // Focus key up. 1746 // User releases half-pressed focus key. 1747 if (mCameraState == FOCUSING || mCameraState == FOCUS_SUCCESS 1748 || mCameraState == FOCUS_FAIL) { 1749 cancelAutoFocus(); 1750 } 1751 } 1752 } 1753 } 1754 1755 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1756 // Make sure we have a surface in the holder before proceeding. 1757 if (holder.getSurface() == null) { 1758 Log.d(TAG, "holder.getSurface() == null"); 1759 return; 1760 } 1761 1762 Log.v(TAG, "surfaceChanged. w=" + w + ". h=" + h); 1763 1764 // We need to save the holder for later use, even when the mCameraDevice 1765 // is null. This could happen if onResume() is invoked after this 1766 // function. 1767 mSurfaceHolder = holder; 1768 1769 // The mCameraDevice will be null if it fails to connect to the camera 1770 // hardware. In this case we will show a dialog and then finish the 1771 // activity, so it's OK to ignore it. 1772 if (mCameraDevice == null) return; 1773 1774 // Sometimes surfaceChanged is called after onPause or before onResume. 1775 // Ignore it. 1776 if (mPausing || isFinishing()) return; 1777 1778 // Set preview display if the surface is being created. Preview was 1779 // already started. Also restart the preview if display rotation has 1780 // changed. Sometimes this happens when the device is held in portrait 1781 // and camera app is opened. Rotation animation takes some time and 1782 // display rotation in onCreate may not be what we want. 1783 if (mCameraState != PREVIEW_STOPPED 1784 && (Util.getDisplayRotation(this) == mDisplayRotation) 1785 && holder.isCreating()) { 1786 // Set preview display if the surface is being created and preview 1787 // was already started. That means preview display was set to null 1788 // and we need to set it now. 1789 setPreviewDisplay(holder); 1790 } else { 1791 // 1. Restart the preview if the size of surface was changed. The 1792 // framework may not support changing preview display on the fly. 1793 // 2. Start the preview now if surface was destroyed and preview 1794 // stopped. 1795 startPreview(); 1796 } 1797 1798 // If first time initialization is not finished, send a message to do 1799 // it later. We want to finish surfaceChanged as soon as possible to let 1800 // user see preview first. 1801 if (!mFirstTimeInitialized) { 1802 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1803 } else { 1804 initializeSecondTime(); 1805 } 1806 } 1807 1808 public void surfaceCreated(SurfaceHolder holder) { 1809 } 1810 1811 public void surfaceDestroyed(SurfaceHolder holder) { 1812 stopPreview(); 1813 mSurfaceHolder = null; 1814 } 1815 1816 private void closeCamera() { 1817 if (mCameraDevice != null) { 1818 CameraHolder.instance().release(); 1819 mCameraDevice.setZoomChangeListener(null); 1820 mCameraDevice = null; 1821 mCameraState = PREVIEW_STOPPED; 1822 } 1823 } 1824 1825 private void setPreviewDisplay(SurfaceHolder holder) { 1826 try { 1827 mCameraDevice.setPreviewDisplay(holder); 1828 } catch (Throwable ex) { 1829 closeCamera(); 1830 throw new RuntimeException("setPreviewDisplay failed", ex); 1831 } 1832 } 1833 1834 private void startPreview() { 1835 if (mPausing || isFinishing()) return; 1836 1837 resetTouchFocus(); 1838 1839 mCameraDevice.setErrorCallback(mErrorCallback); 1840 1841 // If we're previewing already, stop the preview first (this will blank 1842 // the screen). 1843 if (mCameraState != PREVIEW_STOPPED) stopPreview(); 1844 1845 setPreviewDisplay(mSurfaceHolder); 1846 mDisplayRotation = Util.getDisplayRotation(this); 1847 mDisplayOrientation = Util.getDisplayOrientation(mDisplayRotation, mCameraId); 1848 mCameraDevice.setDisplayOrientation(mDisplayOrientation); 1849 if (mFaceListener != null) { 1850 mFaceListener.setDisplayOrientation(mDisplayOrientation); 1851 } 1852 setCameraParameters(UPDATE_PARAM_ALL); 1853 1854 try { 1855 Log.v(TAG, "startPreview"); 1856 mCameraDevice.startPreview(); 1857 } catch (Throwable ex) { 1858 closeCamera(); 1859 throw new RuntimeException("startPreview failed", ex); 1860 } 1861 mZoomState = ZOOM_STOPPED; 1862 mCameraState = IDLE; 1863 } 1864 1865 private void stopPreview() { 1866 if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) { 1867 Log.v(TAG, "stopPreview"); 1868 mCameraDevice.stopPreview(); 1869 } 1870 mCameraState = PREVIEW_STOPPED; 1871 // If auto focus was in progress, it would have been canceled. 1872 updateFocusUI(); 1873 } 1874 1875 private static boolean isSupported(String value, List<String> supported) { 1876 return supported == null ? false : supported.indexOf(value) >= 0; 1877 } 1878 1879 private void updateCameraParametersInitialize() { 1880 // Reset preview frame rate to the maximum because it may be lowered by 1881 // video camera application. 1882 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1883 if (frameRates != null) { 1884 Integer max = Collections.max(frameRates); 1885 mParameters.setPreviewFrameRate(max); 1886 } 1887 1888 // TODO: use camera API after it is published. 1889 mParameters.set("recording-hint", "false"); 1890 } 1891 1892 private void updateCameraParametersZoom() { 1893 // Set zoom. 1894 if (mParameters.isZoomSupported()) { 1895 mParameters.setZoom(mZoomValue); 1896 } 1897 } 1898 1899 private void updateCameraParametersPreference() { 1900 if (mParameters.getMaxNumFocusAreas() > 0) { 1901 mParameters.setFocusAreas(mFocusArea); 1902 Log.d(TAG, "Parameter focus areas=" + mParameters.get("focus-areas")); 1903 } 1904 1905 if (mParameters.getMaxNumMeteringAreas() > 0) { 1906 // Use the same area for focus and metering. 1907 mParameters.setMeteringAreas(mFocusArea); 1908 } 1909 1910 // Set picture size. 1911 String pictureSize = mPreferences.getString( 1912 CameraSettings.KEY_PICTURE_SIZE, null); 1913 if (pictureSize == null) { 1914 CameraSettings.initialCameraPictureSize(this, mParameters); 1915 } else { 1916 List<Size> supported = mParameters.getSupportedPictureSizes(); 1917 CameraSettings.setCameraPictureSize( 1918 pictureSize, supported, mParameters); 1919 } 1920 1921 // Set the preview frame aspect ratio according to the picture size. 1922 Size size = mParameters.getPictureSize(); 1923 PreviewFrameLayout frameLayout = 1924 (PreviewFrameLayout) findViewById(R.id.frame_layout); 1925 frameLayout.setAspectRatio((double) size.width / size.height); 1926 1927 // Set a preview size that is closest to the viewfinder height and has 1928 // the right aspect ratio. 1929 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1930 Size optimalSize = Util.getOptimalPreviewSize(this, 1931 sizes, (double) size.width / size.height); 1932 Size original = mParameters.getPreviewSize(); 1933 if (!original.equals(optimalSize)) { 1934 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1935 1936 // Zoom related settings will be changed for different preview 1937 // sizes, so set and read the parameters to get lastest values 1938 mCameraDevice.setParameters(mParameters); 1939 mParameters = mCameraDevice.getParameters(); 1940 } 1941 Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height); 1942 1943 // Since change scene mode may change supported values, 1944 // Set scene mode first, 1945 mSceneMode = mPreferences.getString( 1946 CameraSettings.KEY_SCENE_MODE, 1947 getString(R.string.pref_camera_scenemode_default)); 1948 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 1949 if (!mParameters.getSceneMode().equals(mSceneMode)) { 1950 mParameters.setSceneMode(mSceneMode); 1951 mCameraDevice.setParameters(mParameters); 1952 1953 // Setting scene mode will change the settings of flash mode, 1954 // white balance, and focus mode. Here we read back the 1955 // parameters, so we can know those settings. 1956 mParameters = mCameraDevice.getParameters(); 1957 } 1958 } else { 1959 mSceneMode = mParameters.getSceneMode(); 1960 if (mSceneMode == null) { 1961 mSceneMode = Parameters.SCENE_MODE_AUTO; 1962 } 1963 } 1964 1965 // Set JPEG quality. 1966 int jpegQuality = CameraProfile.getJpegEncodingQualityParameter(mCameraId, 1967 CameraProfile.QUALITY_HIGH); 1968 mParameters.setJpegQuality(jpegQuality); 1969 1970 // For the following settings, we need to check if the settings are 1971 // still supported by latest driver, if not, ignore the settings. 1972 1973 // Set color effect parameter. 1974 String colorEffect = mPreferences.getString( 1975 CameraSettings.KEY_COLOR_EFFECT, 1976 getString(R.string.pref_camera_coloreffect_default)); 1977 if (isSupported(colorEffect, mParameters.getSupportedColorEffects())) { 1978 mParameters.setColorEffect(colorEffect); 1979 } 1980 1981 // Set exposure compensation 1982 String exposure = mPreferences.getString( 1983 CameraSettings.KEY_EXPOSURE, 1984 getString(R.string.pref_exposure_default)); 1985 try { 1986 int value = Integer.parseInt(exposure); 1987 int max = mParameters.getMaxExposureCompensation(); 1988 int min = mParameters.getMinExposureCompensation(); 1989 if (value >= min && value <= max) { 1990 mParameters.setExposureCompensation(value); 1991 } else { 1992 Log.w(TAG, "invalid exposure range: " + exposure); 1993 } 1994 } catch (NumberFormatException e) { 1995 Log.w(TAG, "invalid exposure: " + exposure); 1996 } 1997 1998 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1999 // Set flash mode. 2000 String flashMode = mPreferences.getString( 2001 CameraSettings.KEY_FLASH_MODE, 2002 getString(R.string.pref_camera_flashmode_default)); 2003 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 2004 if (isSupported(flashMode, supportedFlash)) { 2005 mParameters.setFlashMode(flashMode); 2006 } else { 2007 flashMode = mParameters.getFlashMode(); 2008 if (flashMode == null) { 2009 flashMode = getString( 2010 R.string.pref_camera_flashmode_no_flash); 2011 } 2012 } 2013 2014 // Set white balance parameter. 2015 String whiteBalance = mPreferences.getString( 2016 CameraSettings.KEY_WHITE_BALANCE, 2017 getString(R.string.pref_camera_whitebalance_default)); 2018 if (isSupported(whiteBalance, 2019 mParameters.getSupportedWhiteBalance())) { 2020 mParameters.setWhiteBalance(whiteBalance); 2021 } else { 2022 whiteBalance = mParameters.getWhiteBalance(); 2023 if (whiteBalance == null) { 2024 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 2025 } 2026 } 2027 2028 // Set focus mode. 2029 mFocusMode = mPreferences.getString( 2030 CameraSettings.KEY_FOCUS_MODE, 2031 getString(R.string.pref_camera_focusmode_default)); 2032 if (isSupported(mFocusMode, mParameters.getSupportedFocusModes())) { 2033 mParameters.setFocusMode(mFocusMode); 2034 } else { 2035 mFocusMode = mParameters.getFocusMode(); 2036 if (mFocusMode == null) { 2037 mFocusMode = Parameters.FOCUS_MODE_AUTO; 2038 } 2039 } 2040 } else { 2041 mFocusMode = mParameters.getFocusMode(); 2042 } 2043 } 2044 2045 // We separate the parameters into several subsets, so we can update only 2046 // the subsets actually need updating. The PREFERENCE set needs extra 2047 // locking because the preference can be changed from GLThread as well. 2048 private void setCameraParameters(int updateSet) { 2049 mParameters = mCameraDevice.getParameters(); 2050 2051 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 2052 updateCameraParametersInitialize(); 2053 } 2054 2055 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 2056 updateCameraParametersZoom(); 2057 } 2058 2059 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 2060 updateCameraParametersPreference(); 2061 } 2062 2063 mCameraDevice.setParameters(mParameters); 2064 } 2065 2066 // If the Camera is idle, update the parameters immediately, otherwise 2067 // accumulate them in mUpdateSet and update later. 2068 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 2069 mUpdateSet |= additionalUpdateSet; 2070 if (mCameraDevice == null) { 2071 // We will update all the parameters when we open the device, so 2072 // we don't need to do anything now. 2073 mUpdateSet = 0; 2074 return; 2075 } else if (isCameraIdle()) { 2076 setCameraParameters(mUpdateSet); 2077 updateSceneModeUI(); 2078 mUpdateSet = 0; 2079 } else { 2080 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 2081 mHandler.sendEmptyMessageDelayed( 2082 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 2083 } 2084 } 2085 } 2086 2087 private void gotoGallery() { 2088 MenuHelper.gotoCameraImageGallery(this); 2089 } 2090 2091 private void startReceivingLocationUpdates() { 2092 if (mLocationManager != null) { 2093 try { 2094 mLocationManager.requestLocationUpdates( 2095 LocationManager.NETWORK_PROVIDER, 2096 1000, 2097 0F, 2098 mLocationListeners[1]); 2099 } catch (SecurityException ex) { 2100 Log.i(TAG, "fail to request location update, ignore", ex); 2101 } catch (IllegalArgumentException ex) { 2102 Log.d(TAG, "provider does not exist " + ex.getMessage()); 2103 } 2104 try { 2105 mLocationManager.requestLocationUpdates( 2106 LocationManager.GPS_PROVIDER, 2107 1000, 2108 0F, 2109 mLocationListeners[0]); 2110 showGpsOnScreenIndicator(false); 2111 } catch (SecurityException ex) { 2112 Log.i(TAG, "fail to request location update, ignore", ex); 2113 } catch (IllegalArgumentException ex) { 2114 Log.d(TAG, "provider does not exist " + ex.getMessage()); 2115 } 2116 Log.d(TAG, "startReceivingLocationUpdates"); 2117 } 2118 } 2119 2120 private void stopReceivingLocationUpdates() { 2121 if (mLocationManager != null) { 2122 for (int i = 0; i < mLocationListeners.length; i++) { 2123 try { 2124 mLocationManager.removeUpdates(mLocationListeners[i]); 2125 } catch (Exception ex) { 2126 Log.i(TAG, "fail to remove location listners, ignore", ex); 2127 } 2128 } 2129 Log.d(TAG, "stopReceivingLocationUpdates"); 2130 } 2131 hideGpsOnScreenIndicator(); 2132 } 2133 2134 private Location getCurrentLocation() { 2135 // go in best to worst order 2136 for (int i = 0; i < mLocationListeners.length; i++) { 2137 Location l = mLocationListeners[i].current(); 2138 if (l != null) return l; 2139 } 2140 Log.d(TAG, "No location received yet."); 2141 return null; 2142 } 2143 2144 private boolean isCameraIdle() { 2145 return mCameraState == IDLE || mCameraState == FOCUS_SUCCESS || mCameraState == FOCUS_FAIL; 2146 } 2147 2148 private boolean isImageCaptureIntent() { 2149 String action = getIntent().getAction(); 2150 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 2151 } 2152 2153 private void setupCaptureParams() { 2154 Bundle myExtras = getIntent().getExtras(); 2155 if (myExtras != null) { 2156 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 2157 mCropValue = myExtras.getString("crop"); 2158 } 2159 } 2160 2161 private void showPostCaptureAlert() { 2162 if (mIsImageCaptureIntent) { 2163 if (Util.isTabletUI()) { 2164 mShutterButton.setEnabled(false); 2165 } else { 2166 mShutterButton.setVisibility(View.INVISIBLE); 2167 } 2168 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2169 for (int id : pickIds) { 2170 View button = findViewById(id); 2171 ((View) button.getParent()).setVisibility(View.VISIBLE); 2172 } 2173 2174 // Remove the text of the cancel button 2175 View view = findViewById(R.id.btn_cancel); 2176 if (view instanceof Button) ((Button) view).setText(""); 2177 } 2178 } 2179 2180 private void hidePostCaptureAlert() { 2181 if (mIsImageCaptureIntent) { 2182 if (Util.isTabletUI()) { 2183 mShutterButton.setEnabled(true); 2184 } else { 2185 mShutterButton.setVisibility(View.VISIBLE); 2186 } 2187 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2188 for (int id : pickIds) { 2189 View button = findViewById(id); 2190 ((View) button.getParent()).setVisibility(View.GONE); 2191 } 2192 enableCameraControls(true); 2193 2194 // Restore the text of the cancel button 2195 View view = findViewById(R.id.btn_cancel); 2196 if (view instanceof Button) { 2197 ((Button) view).setText(R.string.review_cancel); 2198 } 2199 } 2200 } 2201 2202 @Override 2203 public boolean onPrepareOptionsMenu(Menu menu) { 2204 super.onPrepareOptionsMenu(menu); 2205 // Only show the menu when camera is idle. 2206 for (int i = 0; i < menu.size(); i++) { 2207 menu.getItem(i).setVisible(isCameraIdle()); 2208 } 2209 2210 return true; 2211 } 2212 2213 @Override 2214 public boolean onCreateOptionsMenu(Menu menu) { 2215 super.onCreateOptionsMenu(menu); 2216 2217 if (mIsImageCaptureIntent) { 2218 // No options menu for attach mode. 2219 return false; 2220 } else { 2221 addBaseMenuItems(menu); 2222 } 2223 return true; 2224 } 2225 2226 private void addBaseMenuItems(Menu menu) { 2227 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_VIDEO, new Runnable() { 2228 public void run() { 2229 switchToOtherMode(ModePicker.MODE_VIDEO); 2230 } 2231 }); 2232 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_PANORAMA, new Runnable() { 2233 public void run() { 2234 switchToOtherMode(ModePicker.MODE_PANORAMA); 2235 } 2236 }); 2237 MenuItem gallery = menu.add(R.string.camera_gallery_photos_text) 2238 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2239 public boolean onMenuItemClick(MenuItem item) { 2240 gotoGallery(); 2241 return true; 2242 } 2243 }); 2244 gallery.setIcon(android.R.drawable.ic_menu_gallery); 2245 mGalleryItems.add(gallery); 2246 2247 if (mNumberOfCameras > 1) { 2248 menu.add(R.string.switch_camera_id) 2249 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2250 public boolean onMenuItemClick(MenuItem item) { 2251 CameraSettings.writePreferredCameraId(mPreferences, 2252 ((mCameraId == mFrontCameraId) 2253 ? mBackCameraId : mFrontCameraId)); 2254 onSharedPreferenceChanged(); 2255 return true; 2256 } 2257 }).setIcon(android.R.drawable.ic_menu_camera); 2258 } 2259 } 2260 2261 private boolean switchToOtherMode(int mode) { 2262 if (isFinishing() || !isCameraIdle()) return false; 2263 MenuHelper.gotoMode(mode, Camera.this); 2264 mHandler.removeMessages(FIRST_TIME_INIT); 2265 finish(); 2266 return true; 2267 } 2268 2269 public boolean onModeChanged(int mode) { 2270 if (mode != ModePicker.MODE_CAMERA) { 2271 return switchToOtherMode(mode); 2272 } else { 2273 return true; 2274 } 2275 } 2276 2277 private void onSharedPreferenceChanged() { 2278 // ignore the events after "onPause()" 2279 if (mPausing) return; 2280 2281 boolean recordLocation; 2282 2283 recordLocation = RecordLocationPreference.get( 2284 mPreferences, getContentResolver()); 2285 2286 if (mRecordLocation != recordLocation) { 2287 mRecordLocation = recordLocation; 2288 if (mRecordLocation) { 2289 startReceivingLocationUpdates(); 2290 } else { 2291 stopReceivingLocationUpdates(); 2292 } 2293 } 2294 int cameraId = CameraSettings.readPreferredCameraId(mPreferences); 2295 if (mCameraId != cameraId) { 2296 // Restart the activity to have a crossfade animation. 2297 // TODO: Use SurfaceTexture to implement a better and faster 2298 // animation. 2299 if (mIsImageCaptureIntent) { 2300 // If the intent is camera capture, stay in camera capture mode. 2301 MenuHelper.gotoCameraMode(this, getIntent()); 2302 } else { 2303 MenuHelper.gotoCameraMode(this); 2304 } 2305 2306 finish(); 2307 } else { 2308 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 2309 } 2310 } 2311 2312 @Override 2313 public void onUserInteraction() { 2314 super.onUserInteraction(); 2315 keepScreenOnAwhile(); 2316 } 2317 2318 private void resetScreenOn() { 2319 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2320 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2321 } 2322 2323 private void keepScreenOnAwhile() { 2324 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2325 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2326 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2327 } 2328 2329 protected void onRestorePreferencesClicked() { 2330 if (mPausing) return; 2331 Runnable runnable = new Runnable() { 2332 public void run() { 2333 restorePreferences(); 2334 } 2335 }; 2336 MenuHelper.confirmAction(this, 2337 getString(R.string.confirm_restore_title), 2338 getString(R.string.confirm_restore_message), 2339 runnable); 2340 } 2341 2342 private void restorePreferences() { 2343 // Reset the zoom. Zoom value is not stored in preference. 2344 if (mParameters.isZoomSupported()) { 2345 mZoomValue = 0; 2346 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 2347 if (mZoomPicker != null) mZoomPicker.setZoomIndex(0); 2348 } 2349 if (mIndicatorControl != null) { 2350 mIndicatorControl.dismissSettingPopup(); 2351 CameraSettings.restorePreferences(Camera.this, mPreferences, 2352 mParameters); 2353 initializeIndicatorControl(); 2354 onSharedPreferenceChanged(); 2355 } 2356 } 2357 2358 protected void onOverriddenPreferencesClicked() { 2359 if (mPausing) return; 2360 if (mNotSelectableToast == null) { 2361 String str = getResources().getString(R.string.not_selectable_in_scene_mode); 2362 mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT); 2363 } 2364 mNotSelectableToast.show(); 2365 } 2366 2367 private void showSharePopup() { 2368 Uri uri = mThumbnail.getUri(); 2369 if (mSharePopup == null || !uri.equals(mSharePopup.getUri())) { 2370 mSharePopup = new SharePopup(this, uri, mThumbnail.getBitmap(), "image/jpeg", 2371 mOrientationCompensation, mShareButton); 2372 } 2373 mSharePopup.showAtLocation(mThumbnailView, Gravity.NO_GRAVITY, 0, 0); 2374 } 2375 2376 private class MyIndicatorControlListener implements IndicatorControl.Listener { 2377 public void onSharedPreferenceChanged() { 2378 Camera.this.onSharedPreferenceChanged(); 2379 } 2380 2381 public void onRestorePreferencesClicked() { 2382 Camera.this.onRestorePreferencesClicked(); 2383 } 2384 2385 public void onOverriddenPreferencesClicked() { 2386 Camera.this.onOverriddenPreferencesClicked(); 2387 } 2388 } 2389 2390 private class MyCameraPickerListener implements CameraPicker.Listener { 2391 public void onSharedPreferenceChanged() { 2392 Camera.this.onSharedPreferenceChanged(); 2393 } 2394 } 2395} 2396