Camera.java revision 6fb969e2edd99340b3b77eae4e7b313a82937930
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.camera; 18 19import com.android.camera.ui.CameraHeadUpDisplay; 20import com.android.camera.ui.CameraPicker; 21import com.android.camera.ui.FocusRectangle; 22import com.android.camera.ui.GLRootView; 23import com.android.camera.ui.HeadUpDisplay; 24import com.android.camera.ui.IndicatorWheel; 25import com.android.camera.ui.RotateImageView; 26import com.android.camera.ui.ZoomControllerListener; 27import com.android.camera.ui.ZoomPicker; 28 29import android.app.Activity; 30import android.content.BroadcastReceiver; 31import android.content.ContentProviderClient; 32import android.content.ContentResolver; 33import android.content.Context; 34import android.content.Intent; 35import android.content.IntentFilter; 36import android.content.SharedPreferences.Editor; 37import android.content.res.Configuration; 38import android.content.res.Resources; 39import android.graphics.Bitmap; 40import android.graphics.Rect; 41import android.hardware.Camera.Area; 42import android.hardware.Camera.CameraInfo; 43import android.hardware.Camera.Parameters; 44import android.hardware.Camera.PictureCallback; 45import android.hardware.Camera.Size; 46import android.location.Location; 47import android.location.LocationManager; 48import android.location.LocationProvider; 49import android.media.AudioManager; 50import android.media.ToneGenerator; 51import android.net.Uri; 52import android.os.Build; 53import android.os.Bundle; 54import android.os.Handler; 55import android.os.Looper; 56import android.os.Message; 57import android.os.MessageQueue; 58import android.os.SystemClock; 59import android.provider.MediaStore; 60import android.provider.Settings; 61import android.util.Log; 62import android.view.GestureDetector; 63import android.view.KeyEvent; 64import android.view.Menu; 65import android.view.MenuItem; 66import android.view.MenuItem.OnMenuItemClickListener; 67import android.view.MotionEvent; 68import android.view.OrientationEventListener; 69import android.view.SurfaceHolder; 70import android.view.SurfaceView; 71import android.view.View; 72import android.view.ViewGroup; 73import android.view.Window; 74import android.view.WindowManager; 75import android.widget.Button; 76import android.widget.ImageView; 77import android.widget.RelativeLayout; 78import android.widget.Toast; 79 80import java.io.File; 81import java.io.FileNotFoundException; 82import java.io.FileOutputStream; 83import java.io.IOException; 84import java.io.OutputStream; 85import java.text.SimpleDateFormat; 86import java.util.ArrayList; 87import java.util.Collections; 88import java.util.Date; 89import java.util.List; 90 91/** The Camera activity which can preview and take pictures. */ 92public class Camera extends ActivityBase implements View.OnClickListener, 93 View.OnTouchListener, ShutterButton.OnShutterButtonListener, 94 SurfaceHolder.Callback, Switcher.OnSwitchListener { 95 96 private static final String TAG = "camera"; 97 98 private static final String LAST_THUMB_FILENAME = "image_last_thumb"; 99 100 private static final int CROP_MSG = 1; 101 private static final int FIRST_TIME_INIT = 2; 102 private static final int RESTART_PREVIEW = 3; 103 private static final int CLEAR_SCREEN_DELAY = 4; 104 private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 5; 105 private static final int CHECK_DISPLAY_ROTATION = 6; 106 private static final int CANCEL_AUTOFOCUS = 7; 107 108 // The subset of parameters we need to update in setCameraParameters(). 109 private static final int UPDATE_PARAM_INITIALIZE = 1; 110 private static final int UPDATE_PARAM_ZOOM = 2; 111 private static final int UPDATE_PARAM_PREFERENCE = 4; 112 private static final int UPDATE_PARAM_ALL = -1; 113 114 // When setCameraParametersWhenIdle() is called, we accumulate the subsets 115 // needed to be updated in mUpdateSet. 116 private int mUpdateSet; 117 118 // The brightness settings used when it is set to automatic in the system. 119 // The reason why it is set to 0.7 is just because 1.0 is too bright. 120 private static final float DEFAULT_CAMERA_BRIGHTNESS = 0.7f; 121 122 private static final int SCREEN_DELAY = 2 * 60 * 1000; 123 private static final int FOCUS_BEEP_VOLUME = 100; 124 125 private static final int ZOOM_STOPPED = 0; 126 private static final int ZOOM_START = 1; 127 private static final int ZOOM_STOPPING = 2; 128 129 private int mZoomState = ZOOM_STOPPED; 130 private boolean mSmoothZoomSupported = false; 131 private int mZoomValue; // The current zoom value. 132 private int mZoomMax; 133 private int mTargetZoomValue; 134 private ZoomPicker mZoomPicker; 135 136 private Parameters mParameters; 137 private Parameters mInitialParams; 138 139 private MyOrientationEventListener mOrientationListener; 140 // The device orientation in degrees. Default is unknown. 141 private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 142 // The orientation compensation for icons and thumbnails. 143 private int mOrientationCompensation = 0; 144 private ComboPreferences mPreferences; 145 146 private static final boolean SWITCH_CAMERA = true; 147 private static final boolean SWITCH_VIDEO = false; 148 149 private static final String sTempCropFilename = "crop-temp"; 150 151 private android.hardware.Camera mCameraDevice; 152 private ContentProviderClient mMediaProviderClient; 153 private SurfaceHolder mSurfaceHolder = null; 154 private ShutterButton mShutterButton; 155 private ToneGenerator mFocusToneGenerator; 156 private GestureDetector mPopupGestureDetector; 157 private SwitcherSet mSwitcher; 158 private boolean mStartPreviewFail = false; 159 160 private View mPreviewFrame; // Preview frame area. 161 private View mPreviewBorder; 162 private FocusRectangle mFocusRectangle; 163 private List<Area> mFocusArea; // focus area in driver format 164 165 private GLRootView mGLRootView; 166 167 // A button showing the last captured picture thumbnail. Clicking on it 168 // goes to gallery. 169 private RotateImageView mThumbnailButton; 170 // The bitmap of the last captured picture thumbnail and the URI of the 171 // original picture. 172 private Thumbnail mThumbnail; 173 // An review image having same size as preview. It is displayed when 174 // share button is pressed. 175 private ImageView mReviewImage; 176 177 // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. 178 private String mCropValue; 179 private Uri mSaveUri; 180 181 // GPS on-screen indicator 182 private View mGpsNoSignalView; 183 private View mGpsHasSignalView; 184 185 // Front/Back camera pciker for xlarge layout 186 private CameraPicker mCameraPicker; 187 188 /** 189 * An unpublished intent flag requesting to return as soon as capturing 190 * is completed. 191 * 192 * TODO: consider publishing by moving into MediaStore. 193 */ 194 private final static String EXTRA_QUICK_CAPTURE = 195 "android.intent.extra.quickCapture"; 196 197 // The display rotation in degrees. This is only valid when mCameraState is 198 // not PREVIEW_STOPPED. 199 private int mDisplayRotation; 200 private boolean mPausing; 201 private boolean mFirstTimeInitialized; 202 private boolean mIsImageCaptureIntent; 203 private boolean mRecordLocation; 204 205 private static final int PREVIEW_STOPPED = 0; 206 private static final int IDLE = 1; // preview is active 207 private static final int FOCUSING = 2; 208 private static final int FOCUSING_SNAP_ON_FINISH = 3; 209 private static final int FOCUS_SUCCESS = 4; 210 private static final int FOCUS_FAIL = 5; 211 private static final int SNAPSHOT_IN_PROGRESS = 6; 212 private int mCameraState = PREVIEW_STOPPED; 213 214 private ContentResolver mContentResolver; 215 private boolean mDidRegister = false; 216 217 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 218 219 private LocationManager mLocationManager = null; 220 221 private final ShutterCallback mShutterCallback = new ShutterCallback(); 222 private final PostViewPictureCallback mPostViewPictureCallback = 223 new PostViewPictureCallback(); 224 private final RawPictureCallback mRawPictureCallback = 225 new RawPictureCallback(); 226 private final AutoFocusCallback mAutoFocusCallback = 227 new AutoFocusCallback(); 228 private final ZoomListener mZoomListener = new ZoomListener(); 229 private final CameraErrorCallback mErrorCallback = new CameraErrorCallback(); 230 231 private long mFocusStartTime; 232 private long mFocusCallbackTime; 233 private long mCaptureStartTime; 234 private long mShutterCallbackTime; 235 private long mPostViewPictureCallbackTime; 236 private long mRawPictureCallbackTime; 237 private long mJpegPictureCallbackTime; 238 private long mOnResumeTime; 239 private long mPicturesRemaining; 240 private byte[] mJpegImageData; 241 242 // These latency time are for the CameraLatency test. 243 public long mAutoFocusTime; 244 public long mShutterLag; 245 public long mShutterToPictureDisplayedTime; 246 public long mPictureDisplayedToJpegCallbackTime; 247 public long mJpegCallbackFinishTime; 248 249 // Focus mode. Options are pref_camera_focusmode_entryvalues. 250 private String mFocusMode; 251 private String mSceneMode; 252 private Toast mNotSelectableToast; 253 private Toast mNoShareToast; 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) { // no thumbnail in image capture intent 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.setOnClickListener(this); 426 // Load the thumbnail from the disk. 427 mThumbnail = Thumbnail.loadFrom(LAST_THUMB_FILENAME); 428 updateThumbnailButton(); 429 } 430 431 private void updateThumbnailButton() { 432 // Update last image if URI is invalid and the storage is ready. 433 if ((mThumbnail == null || !Util.isUriValid(mThumbnail.getUri(), mContentResolver)) 434 && mPicturesRemaining >= 0) { 435 mThumbnail = Thumbnail.getLastImageThumbnail(mContentResolver); 436 } 437 if (mThumbnail != null) { 438 mThumbnailButton.setBitmap(mThumbnail.getBitmap()); 439 } else { 440 mThumbnailButton.setBitmap(null); 441 } 442 } 443 444 // If the activity is paused and resumed, this method will be called in 445 // onResume. 446 private void initializeSecondTime() { 447 // Start orientation listener as soon as possible because it takes 448 // some time to get first orientation. 449 mOrientationListener.enable(); 450 451 // Start location update if needed. 452 mRecordLocation = RecordLocationPreference.get( 453 mPreferences, getContentResolver()); 454 if (mRecordLocation) startReceivingLocationUpdates(); 455 456 installIntentFilter(); 457 initializeFocusTone(); 458 initializeZoom(); 459 changeHeadUpDisplayState(); 460 461 keepMediaProviderInstance(); 462 checkStorage(); 463 464 if (!mIsImageCaptureIntent) { 465 updateThumbnailButton(); 466 } 467 } 468 469 private void initializeZoom() { 470 if (!mParameters.isZoomSupported()) return; 471 472 mZoomMax = mParameters.getMaxZoom(); 473 mSmoothZoomSupported = mParameters.isSmoothZoomSupported(); 474 if (mZoomPicker != null) { 475 mZoomPicker.setZoomRatios(getZoomRatios()); 476 mZoomPicker.setZoomIndex(mParameters.getZoom()); 477 mZoomPicker.setSmoothZoomSupported(mSmoothZoomSupported); 478 mZoomPicker.setOnZoomChangeListener( 479 new ZoomPicker.OnZoomChangedListener() { 480 // only for immediate zoom 481 public void onZoomValueChanged(int index) { 482 Camera.this.onZoomValueChanged(index); 483 } 484 485 // only for smooth zoom 486 public void onZoomStateChanged(int state) { 487 if (mPausing) return; 488 489 Log.v(TAG, "zoom picker state=" + state); 490 if (state == mZoomPicker.ZOOM_IN) { 491 Camera.this.onZoomValueChanged(mZoomMax); 492 } else if (state == mZoomPicker.ZOOM_OUT){ 493 Camera.this.onZoomValueChanged(0); 494 } else { 495 mTargetZoomValue = -1; 496 if (mZoomState == ZOOM_START) { 497 mZoomState = ZOOM_STOPPING; 498 mCameraDevice.stopSmoothZoom(); 499 } 500 } 501 } 502 }); 503 } 504 505 mCameraDevice.setZoomChangeListener(mZoomListener); 506 } 507 508 private void onZoomValueChanged(int index) { 509 // Not useful to change zoom value when the activity is paused. 510 if (mPausing) return; 511 512 if (mSmoothZoomSupported) { 513 if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { 514 mTargetZoomValue = index; 515 if (mZoomState == ZOOM_START) { 516 mZoomState = ZOOM_STOPPING; 517 mCameraDevice.stopSmoothZoom(); 518 } 519 } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { 520 mTargetZoomValue = index; 521 mCameraDevice.startSmoothZoom(index); 522 mZoomState = ZOOM_START; 523 } 524 } else { 525 mZoomValue = index; 526 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 527 } 528 } 529 530 private float[] getZoomRatios() { 531 if(!mParameters.isZoomSupported()) return null; 532 List<Integer> zoomRatios = mParameters.getZoomRatios(); 533 float result[] = new float[zoomRatios.size()]; 534 for (int i = 0, n = result.length; i < n; ++i) { 535 result[i] = (float) zoomRatios.get(i) / 100f; 536 } 537 return result; 538 } 539 540 private class PopupGestureListener 541 extends GestureDetector.SimpleOnGestureListener { 542 public boolean onDown(MotionEvent e) { 543 // Check if the popup window is visible. 544 View popup = mIndicatorWheel.getActivePopupWindow(); 545 if (popup == null) return false; 546 547 548 // Let popup window, indicator wheel 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(), mIndicatorWheel) 553 && !Util.pointInView(e.getX(), e.getY(), mPreviewFrame)) { 554 mIndicatorWheel.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 initGpsOnScreenIndicator() { 607 mGpsNoSignalView = findViewById(R.id.onscreen_gps_indicator_no_signal); 608 mGpsHasSignalView = findViewById(R.id.onscreen_gps_indicator_on); 609 } 610 611 private void showGpsOnScreenIndicator(boolean hasSignal) { 612 if (hasSignal) { 613 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.INVISIBLE); 614 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.VISIBLE); 615 } else { 616 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.VISIBLE); 617 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.INVISIBLE); 618 } 619 } 620 621 private void hideGpsOnScreenIndicator() { 622 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.INVISIBLE); 623 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.INVISIBLE); 624 } 625 626 private class LocationListener 627 implements android.location.LocationListener { 628 Location mLastLocation; 629 boolean mValid = false; 630 String mProvider; 631 632 public LocationListener(String provider) { 633 mProvider = provider; 634 mLastLocation = new Location(mProvider); 635 } 636 637 public void onLocationChanged(Location newLocation) { 638 if (newLocation.getLatitude() == 0.0 639 && newLocation.getLongitude() == 0.0) { 640 // Hack to filter out 0.0,0.0 locations 641 return; 642 } 643 // If GPS is available before start camera, we won't get status 644 // update so update GPS indicator when we receive data. 645 if (mRecordLocation 646 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 647 if (mHeadUpDisplay != null) { 648 mHeadUpDisplay.setGpsHasSignal(true); 649 } 650 showGpsOnScreenIndicator(true); 651 } 652 if (!mValid) { 653 Log.d(TAG, "Got first location."); 654 } 655 mLastLocation.set(newLocation); 656 mValid = true; 657 } 658 659 public void onProviderEnabled(String provider) { 660 } 661 662 public void onProviderDisabled(String provider) { 663 mValid = false; 664 } 665 666 public void onStatusChanged( 667 String provider, int status, Bundle extras) { 668 switch(status) { 669 case LocationProvider.OUT_OF_SERVICE: 670 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 671 mValid = false; 672 if (mRecordLocation && 673 LocationManager.GPS_PROVIDER.equals(provider)) { 674 if (mHeadUpDisplay != null) { 675 mHeadUpDisplay.setGpsHasSignal(false); 676 } 677 showGpsOnScreenIndicator(false); 678 } 679 break; 680 } 681 } 682 } 683 684 public Location current() { 685 return mValid ? mLastLocation : null; 686 } 687 } 688 689 private final class ShutterCallback 690 implements android.hardware.Camera.ShutterCallback { 691 public void onShutter() { 692 mShutterCallbackTime = System.currentTimeMillis(); 693 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 694 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 695 updateFocusUI(); 696 } 697 } 698 699 private final class PostViewPictureCallback implements PictureCallback { 700 public void onPictureTaken( 701 byte [] data, android.hardware.Camera camera) { 702 mPostViewPictureCallbackTime = System.currentTimeMillis(); 703 Log.v(TAG, "mShutterToPostViewCallbackTime = " 704 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 705 + "ms"); 706 } 707 } 708 709 private final class RawPictureCallback implements PictureCallback { 710 public void onPictureTaken( 711 byte [] rawData, android.hardware.Camera camera) { 712 mRawPictureCallbackTime = System.currentTimeMillis(); 713 Log.v(TAG, "mShutterToRawCallbackTime = " 714 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 715 } 716 } 717 718 private final class JpegPictureCallback implements PictureCallback { 719 Location mLocation; 720 721 public JpegPictureCallback(Location loc) { 722 mLocation = loc; 723 } 724 725 public void onPictureTaken( 726 final byte [] jpegData, final android.hardware.Camera camera) { 727 if (mPausing) { 728 return; 729 } 730 731 mJpegPictureCallbackTime = System.currentTimeMillis(); 732 // If postview callback has arrived, the captured image is displayed 733 // in postview callback. If not, the captured image is displayed in 734 // raw picture callback. 735 if (mPostViewPictureCallbackTime != 0) { 736 mShutterToPictureDisplayedTime = 737 mPostViewPictureCallbackTime - mShutterCallbackTime; 738 mPictureDisplayedToJpegCallbackTime = 739 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 740 } else { 741 mShutterToPictureDisplayedTime = 742 mRawPictureCallbackTime - mShutterCallbackTime; 743 mPictureDisplayedToJpegCallbackTime = 744 mJpegPictureCallbackTime - mRawPictureCallbackTime; 745 } 746 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 747 + mPictureDisplayedToJpegCallbackTime + "ms"); 748 749 if (!mIsImageCaptureIntent) { 750 enableCameraControls(true); 751 752 // We want to show the taken picture for a while, so we wait 753 // for at least 1.2 second before restarting the preview. 754 long delay = 1200 - mPictureDisplayedToJpegCallbackTime; 755 if (delay < 0) { 756 restartPreview(); 757 } else { 758 mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay); 759 } 760 } 761 storeImage(jpegData, camera, mLocation); 762 763 // Check this in advance of each shot so we don't add to shutter 764 // latency. It's true that someone else could write to the SD card in 765 // the mean time and fill it, but that could have happened between the 766 // shutter press and saving the JPEG too. 767 checkStorage(); 768 769 if (!mHandler.hasMessages(RESTART_PREVIEW)) { 770 long now = System.currentTimeMillis(); 771 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 772 Log.v(TAG, "mJpegCallbackFinishTime = " 773 + mJpegCallbackFinishTime + "ms"); 774 mJpegPictureCallbackTime = 0; 775 } 776 } 777 } 778 779 private final class AutoFocusCallback 780 implements android.hardware.Camera.AutoFocusCallback { 781 public void onAutoFocus( 782 boolean focused, android.hardware.Camera camera) { 783 mFocusCallbackTime = System.currentTimeMillis(); 784 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 785 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 786 if (mCameraState == FOCUSING_SNAP_ON_FINISH) { 787 // Take the picture no matter focus succeeds or fails. No need 788 // to play the AF sound if we're about to play the shutter 789 // sound. 790 if (focused) { 791 mCameraState = FOCUS_SUCCESS; 792 } else { 793 mCameraState = FOCUS_FAIL; 794 } 795 updateFocusUI(); 796 capture(); 797 } else if (mCameraState == FOCUSING) { 798 // This happens when (1) user is half-pressing the focus key or 799 // (2) touch focus is triggered. Play the focus tone. Do not 800 // take the picture now. 801 if (focused) { 802 mCameraState = FOCUS_SUCCESS; 803 if (mFocusToneGenerator != null) { 804 mFocusToneGenerator.startTone(ToneGenerator.TONE_PROP_BEEP2); 805 } 806 } else { 807 mCameraState = FOCUS_FAIL; 808 } 809 updateFocusUI(); 810 enableCameraControls(true); 811 // If this is triggered by touch focus, cancel focus after a 812 // while. 813 if (mFocusArea != null) { 814 mHandler.sendEmptyMessageDelayed(CANCEL_AUTOFOCUS, 3000); 815 } 816 } else if (mCameraState == IDLE) { 817 // User has released the focus key before focus completes. 818 // Do nothing. 819 } 820 821 } 822 } 823 824 private final class ZoomListener 825 implements android.hardware.Camera.OnZoomChangeListener { 826 public void onZoomChange( 827 int value, boolean stopped, android.hardware.Camera camera) { 828 Log.v(TAG, "Zoom changed: value=" + value + ". stopped="+ stopped); 829 mZoomValue = value; 830 831 // Update the UI when we get zoom value. 832 if (mZoomPicker != null) mZoomPicker.setZoomIndex(value); 833 834 // Keep mParameters up to date. We do not getParameter again in 835 // takePicture. If we do not do this, wrong zoom value will be set. 836 mParameters.setZoom(value); 837 838 if (stopped && mZoomState != ZOOM_STOPPED) { 839 if (mTargetZoomValue != -1 && value != mTargetZoomValue) { 840 mCameraDevice.startSmoothZoom(mTargetZoomValue); 841 mZoomState = ZOOM_START; 842 } else { 843 mZoomState = ZOOM_STOPPED; 844 } 845 } 846 } 847 } 848 849 public void storeImage(final byte[] data, 850 android.hardware.Camera camera, Location loc) { 851 if (!mIsImageCaptureIntent) { 852 long dateTaken = System.currentTimeMillis(); 853 String title = createName(dateTaken); 854 int orientation = Exif.getOrientation(data); 855 Uri uri = Storage.addImage(mContentResolver, title, dateTaken, 856 loc, orientation, data); 857 if (uri != null) { 858 // Create a thumbnail whose size is smaller than half of the surface view. 859 int ratio = (int) Math.ceil((double) mParameters.getPictureSize().width 860 / (mPreviewFrame.getWidth() / 2)); 861 int inSampleSize = Util.nextPowerOf2(ratio); 862 mThumbnail = Thumbnail.createThumbnail(data, orientation, inSampleSize, uri); 863 if (mThumbnail != null) { 864 mThumbnailButton.setBitmap(mThumbnail.getBitmap()); 865 } 866 sendBroadcast(new Intent("com.android.camera.NEW_PICTURE", uri)); 867 } 868 } else { 869 mJpegImageData = data; 870 if (!mQuickCapture) { 871 showPostCaptureAlert(); 872 } else { 873 doAttach(); 874 } 875 } 876 } 877 878 private void capture() { 879 // If we are already in the middle of taking a snapshot then ignore. 880 if (mPausing || mCameraState == SNAPSHOT_IN_PROGRESS || mCameraDevice == null) { 881 return; 882 } 883 mCaptureStartTime = System.currentTimeMillis(); 884 mPostViewPictureCallbackTime = 0; 885 enableCameraControls(false); 886 mJpegImageData = null; 887 888 // See android.hardware.Camera.Parameters.setRotation for 889 // documentation. 890 int rotation = 0; 891 if (mOrientation != OrientationEventListener.ORIENTATION_UNKNOWN) { 892 CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; 893 if (info.facing == CameraInfo.CAMERA_FACING_FRONT) { 894 rotation = (info.orientation - mOrientation + 360) % 360; 895 } else { // back-facing camera 896 rotation = (info.orientation + mOrientation) % 360; 897 } 898 } 899 mParameters.setRotation(rotation); 900 901 // Clear previous GPS location from the parameters. 902 mParameters.removeGpsData(); 903 904 // We always encode GpsTimeStamp 905 mParameters.setGpsTimestamp(System.currentTimeMillis() / 1000); 906 907 // Set GPS location. 908 Location loc = mRecordLocation ? getCurrentLocation() : null; 909 if (loc != null) { 910 double lat = loc.getLatitude(); 911 double lon = loc.getLongitude(); 912 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 913 914 if (hasLatLon) { 915 Log.d(TAG, "Set gps location"); 916 mParameters.setGpsLatitude(lat); 917 mParameters.setGpsLongitude(lon); 918 mParameters.setGpsProcessingMethod(loc.getProvider().toUpperCase()); 919 if (loc.hasAltitude()) { 920 mParameters.setGpsAltitude(loc.getAltitude()); 921 } else { 922 // for NETWORK_PROVIDER location provider, we may have 923 // no altitude information, but the driver needs it, so 924 // we fake one. 925 mParameters.setGpsAltitude(0); 926 } 927 if (loc.getTime() != 0) { 928 // Location.getTime() is UTC in milliseconds. 929 // gps-timestamp is UTC in seconds. 930 long utcTimeSeconds = loc.getTime() / 1000; 931 mParameters.setGpsTimestamp(utcTimeSeconds); 932 } 933 } else { 934 loc = null; 935 } 936 } 937 938 mCameraDevice.setParameters(mParameters); 939 940 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 941 mPostViewPictureCallback, new JpegPictureCallback(loc)); 942 mCameraState = SNAPSHOT_IN_PROGRESS; 943 mHandler.removeMessages(CANCEL_AUTOFOCUS); 944 } 945 946 private boolean saveDataToFile(String filePath, byte[] data) { 947 FileOutputStream f = null; 948 try { 949 f = new FileOutputStream(filePath); 950 f.write(data); 951 } catch (IOException e) { 952 return false; 953 } finally { 954 Util.closeSilently(f); 955 } 956 return true; 957 } 958 959 private String createName(long dateTaken) { 960 Date date = new Date(dateTaken); 961 SimpleDateFormat dateFormat = new SimpleDateFormat( 962 getString(R.string.image_file_name_format)); 963 964 return dateFormat.format(date); 965 } 966 967 @Override 968 public void onCreate(Bundle icicle) { 969 super.onCreate(icicle); 970 971 mIsImageCaptureIntent = isImageCaptureIntent(); 972 if (mIsImageCaptureIntent) { 973 setContentView(R.layout.camera_attach); 974 } else { 975 setContentView(R.layout.camera); 976 } 977 mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); 978 mThumbnailButton = (RotateImageView) findViewById(R.id.review_thumbnail); 979 mReviewImage = (ImageView) findViewById(R.id.review_image); 980 981 mPreferences = new ComboPreferences(this); 982 CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal()); 983 984 mCameraId = CameraSettings.readPreferredCameraId(mPreferences); 985 986 // Testing purpose. Launch a specific camera through the intent extras. 987 int intentCameraId = Util.getCameraFacingIntentExtras(this); 988 if (intentCameraId != -1) { 989 mCameraId = intentCameraId; 990 } 991 992 mPreferences.setLocalId(this, mCameraId); 993 CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); 994 995 mNumberOfCameras = CameraHolder.instance().getNumberOfCameras(); 996 mQuickCapture = getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false); 997 998 // we need to reset exposure for the preview 999 resetExposureCompensation(); 1000 /* 1001 * To reduce startup time, we start the preview in another thread. 1002 * We make sure the preview is started at the end of onCreate. 1003 */ 1004 Thread startPreviewThread = new Thread(new Runnable() { 1005 public void run() { 1006 try { 1007 mStartPreviewFail = false; 1008 startPreview(); 1009 } catch (CameraHardwareException e) { 1010 // In eng build, we throw the exception so that test tool 1011 // can detect it and report it 1012 if ("eng".equals(Build.TYPE)) { 1013 throw new RuntimeException(e); 1014 } 1015 mStartPreviewFail = true; 1016 } 1017 } 1018 }); 1019 startPreviewThread.start(); 1020 1021 // don't set mSurfaceHolder here. We have it set ONLY within 1022 // surfaceChanged / surfaceDestroyed, other parts of the code 1023 // assume that when it is set, the surface is also set. 1024 SurfaceView preview = (SurfaceView) findViewById(R.id.camera_preview); 1025 SurfaceHolder holder = preview.getHolder(); 1026 holder.addCallback(this); 1027 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 1028 1029 if (mIsImageCaptureIntent) { 1030 setupCaptureParams(); 1031 1032 findViewById(R.id.review_control).setVisibility(View.VISIBLE); 1033 findViewById(R.id.btn_cancel).setOnClickListener(this); 1034 findViewById(R.id.btn_retake).setOnClickListener(this); 1035 findViewById(R.id.btn_done).setOnClickListener(this); 1036 } else { 1037 mSwitcher = (SwitcherSet) findViewById(R.id.camera_switch); 1038 mSwitcher.setVisibility(View.VISIBLE); 1039 mSwitcher.setOnSwitchListener(this); 1040 } 1041 1042 // Make sure preview is started. 1043 try { 1044 startPreviewThread.join(); 1045 if (mStartPreviewFail) { 1046 showCameraErrorAndFinish(); 1047 return; 1048 } 1049 } catch (InterruptedException ex) { 1050 // ignore 1051 } 1052 1053 mBackCameraId = CameraHolder.instance().getBackCameraId(); 1054 mFrontCameraId = CameraHolder.instance().getFrontCameraId(); 1055 1056 // Do this after starting preview because it depends on camera 1057 // parameters. 1058 initializeIndicatorWheel(); 1059 initializeCameraPicker(); 1060 1061 mZoomPicker = (ZoomPicker) findViewById(R.id.zoom_picker); 1062 if (mZoomPicker != null) mZoomPicker.setEnabled(true); // disabled initially in xml 1063 } 1064 1065 private void changeHeadUpDisplayState() { 1066 if (mHeadUpDisplay == null) return; 1067 // If the camera resumes behind the lock screen, the orientation 1068 // will be portrait. That causes OOM when we try to allocation GPU 1069 // memory for the GLSurfaceView again when the orientation changes. So, 1070 // we delayed initialization of HeadUpDisplay until the orientation 1071 // becomes landscape. 1072 Configuration config = getResources().getConfiguration(); 1073 if (config.orientation == Configuration.ORIENTATION_LANDSCAPE 1074 && !mPausing && mFirstTimeInitialized) { 1075 if (mGLRootView == null) attachHeadUpDisplay(); 1076 } else if (mGLRootView != null) { 1077 detachHeadUpDisplay(); 1078 } 1079 } 1080 1081 private void overrideCameraSettings(final String flashMode, 1082 final String whiteBalance, final String focusMode) { 1083 if (mHeadUpDisplay != null) { 1084 mHeadUpDisplay.overrideSettings( 1085 CameraSettings.KEY_FLASH_MODE, flashMode, 1086 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 1087 CameraSettings.KEY_FOCUS_MODE, focusMode); 1088 } 1089 if (mIndicatorWheel != null) { 1090 mIndicatorWheel.overrideSettings( 1091 CameraSettings.KEY_FLASH_MODE, flashMode, 1092 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 1093 CameraSettings.KEY_FOCUS_MODE, focusMode); 1094 } 1095 } 1096 1097 private void updateSceneModeUI() { 1098 // If scene mode is set, we cannot set flash mode, white balance, and 1099 // focus mode, instead, we read it from driver 1100 if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1101 overrideCameraSettings(mParameters.getFlashMode(), 1102 mParameters.getWhiteBalance(), mParameters.getFocusMode()); 1103 } else { 1104 overrideCameraSettings(null, null, null); 1105 } 1106 } 1107 1108 private void loadCameraPreferences() { 1109 CameraSettings settings = new CameraSettings(this, mInitialParams, 1110 mCameraId, CameraHolder.instance().getCameraInfo()); 1111 mPreferenceGroup = settings.getPreferenceGroup(R.xml.camera_preferences); 1112 } 1113 1114 private void initializeIndicatorWheel() { 1115 mIndicatorWheel = (IndicatorWheel) findViewById(R.id.indicator_wheel); 1116 if (mIndicatorWheel == null) return; 1117 loadCameraPreferences(); 1118 1119 final String[] SETTING_KEYS = { 1120 CameraSettings.KEY_FLASH_MODE, 1121 CameraSettings.KEY_WHITE_BALANCE, 1122 CameraSettings.KEY_SCENE_MODE}; 1123 final String[] OTHER_SETTING_KEYS = { 1124 CameraSettings.KEY_RECORD_LOCATION, 1125 CameraSettings.KEY_FOCUS_MODE, 1126 CameraSettings.KEY_EXPOSURE, 1127 CameraSettings.KEY_COLOR_EFFECT, 1128 CameraSettings.KEY_PICTURE_SIZE, 1129 CameraSettings.KEY_JPEG_QUALITY}; 1130 mIndicatorWheel.initialize(this, mPreferenceGroup, SETTING_KEYS, 1131 OTHER_SETTING_KEYS); 1132 mIndicatorWheel.setListener(new MyIndicatorWheelListener()); 1133 mPopupGestureDetector = new GestureDetector(this, 1134 new PopupGestureListener()); 1135 updateSceneModeUI(); 1136 } 1137 1138 private void initializeHeadUpDisplay() { 1139 if (mHeadUpDisplay == null) return; 1140 loadCameraPreferences(); 1141 1142 // If we have zoom picker, do not show zoom control on head-up display. 1143 float[] zoomRatios = null; 1144 if (mZoomPicker == null) zoomRatios = getZoomRatios(); 1145 mHeadUpDisplay.initialize(this, mPreferenceGroup, 1146 zoomRatios, mOrientationCompensation); 1147 if (mZoomPicker == null && mParameters.isZoomSupported()) { 1148 mHeadUpDisplay.setZoomListener(new ZoomControllerListener() { 1149 public void onZoomChanged( 1150 int index, float ratio, boolean isMoving) { 1151 onZoomValueChanged(index); 1152 } 1153 }); 1154 } 1155 updateSceneModeUI(); 1156 } 1157 1158 private void attachHeadUpDisplay() { 1159 mHeadUpDisplay.setOrientation(mOrientationCompensation); 1160 if (mParameters.isZoomSupported()) { 1161 mHeadUpDisplay.setZoomIndex(mZoomValue); 1162 } 1163 ViewGroup frame = (ViewGroup) findViewById(R.id.frame); 1164 mGLRootView = new GLRootView(this); 1165 mGLRootView.setContentPane(mHeadUpDisplay); 1166 frame.addView(mGLRootView); 1167 } 1168 1169 private void detachHeadUpDisplay() { 1170 mHeadUpDisplay.setGpsHasSignal(false); 1171 mHeadUpDisplay.collapse(); 1172 ((ViewGroup) mGLRootView.getParent()).removeView(mGLRootView); 1173 mGLRootView = null; 1174 } 1175 1176 private boolean collapseCameraControls() { 1177 if (mHeadUpDisplay != null && mHeadUpDisplay.collapse()) { 1178 return true; 1179 } 1180 if (mIndicatorWheel != null && mIndicatorWheel.dismissSettingPopup()) { 1181 return true; 1182 } 1183 return false; 1184 } 1185 1186 private void enableCameraControls(boolean enable) { 1187 if (mHeadUpDisplay != null) mHeadUpDisplay.setEnabled(enable); 1188 if (mIndicatorWheel != null) mIndicatorWheel.setEnabled(enable); 1189 if (mCameraPicker != null) mCameraPicker.setEnabled(enable); 1190 if (mZoomPicker != null) mZoomPicker.setEnabled(enable); 1191 if (mSwitcher != null) mSwitcher.setEnabled(enable); 1192 } 1193 1194 public static int roundOrientation(int orientation) { 1195 return ((orientation + 45) / 90 * 90) % 360; 1196 } 1197 1198 private class MyOrientationEventListener 1199 extends OrientationEventListener { 1200 public MyOrientationEventListener(Context context) { 1201 super(context); 1202 } 1203 1204 @Override 1205 public void onOrientationChanged(int orientation) { 1206 // We keep the last known orientation. So if the user first orient 1207 // the camera then point the camera to floor or sky, we still have 1208 // the correct orientation. 1209 if (orientation == ORIENTATION_UNKNOWN) return; 1210 mOrientation = roundOrientation(orientation); 1211 // When the screen is unlocked, display rotation may change. Always 1212 // calculate the up-to-date orientationCompensation. 1213 int orientationCompensation = mOrientation 1214 + Util.getDisplayRotation(Camera.this); 1215 if (mOrientationCompensation != orientationCompensation) { 1216 mOrientationCompensation = orientationCompensation; 1217 if (!mIsImageCaptureIntent) { 1218 setOrientationIndicator(mOrientationCompensation); 1219 } 1220 if (mHeadUpDisplay != null) { 1221 mHeadUpDisplay.setOrientation(mOrientationCompensation); 1222 } 1223 } 1224 } 1225 } 1226 1227 private void setOrientationIndicator(int degree) { 1228 RotateImageView icon = (RotateImageView) findViewById( 1229 R.id.review_thumbnail); 1230 if (icon != null) icon.setDegree(degree); 1231 1232 icon = (RotateImageView) findViewById(R.id.camera_switch_icon); 1233 if (icon != null) icon.setDegree(degree); 1234 icon = (RotateImageView) findViewById(R.id.video_switch_icon); 1235 if (icon != null) icon.setDegree(degree); 1236 } 1237 1238 @Override 1239 public void onStart() { 1240 super.onStart(); 1241 if (!mIsImageCaptureIntent) { 1242 mSwitcher.setSwitch(SWITCH_CAMERA); 1243 } 1244 } 1245 1246 @Override 1247 public void onStop() { 1248 super.onStop(); 1249 if (mMediaProviderClient != null) { 1250 mMediaProviderClient.release(); 1251 mMediaProviderClient = null; 1252 } 1253 } 1254 1255 private void checkStorage() { 1256 mPicturesRemaining = Storage.getAvailableSpace(); 1257 if (mPicturesRemaining > 0) { 1258 mPicturesRemaining /= 1500000; 1259 } 1260 updateStorageHint(); 1261 } 1262 1263 public void onClick(View v) { 1264 switch (v.getId()) { 1265 case R.id.btn_retake: 1266 hidePostCaptureAlert(); 1267 restartPreview(); 1268 break; 1269 case R.id.review_thumbnail: 1270 if (isCameraIdle() && mThumbnail != null) { 1271 Util.viewUri(mThumbnail.getUri(), this); 1272 } 1273 break; 1274 case R.id.btn_done: 1275 doAttach(); 1276 break; 1277 case R.id.btn_cancel: 1278 doCancel(); 1279 break; 1280 case R.id.btn_gallery: 1281 gotoGallery(); 1282 break; 1283 } 1284 } 1285 1286 private void doAttach() { 1287 if (mPausing) { 1288 return; 1289 } 1290 1291 byte[] data = mJpegImageData; 1292 1293 if (mCropValue == null) { 1294 // First handle the no crop case -- just return the value. If the 1295 // caller specifies a "save uri" then write the data to it's 1296 // stream. Otherwise, pass back a scaled down version of the bitmap 1297 // directly in the extras. 1298 if (mSaveUri != null) { 1299 OutputStream outputStream = null; 1300 try { 1301 outputStream = mContentResolver.openOutputStream(mSaveUri); 1302 outputStream.write(data); 1303 outputStream.close(); 1304 1305 setResultEx(RESULT_OK); 1306 finish(); 1307 } catch (IOException ex) { 1308 // ignore exception 1309 } finally { 1310 Util.closeSilently(outputStream); 1311 } 1312 } else { 1313 int orientation = Exif.getOrientation(data); 1314 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1315 bitmap = Util.rotate(bitmap, orientation); 1316 setResultEx(RESULT_OK, 1317 new Intent("inline-data").putExtra("data", bitmap)); 1318 finish(); 1319 } 1320 } else { 1321 // Save the image to a temp file and invoke the cropper 1322 Uri tempUri = null; 1323 FileOutputStream tempStream = null; 1324 try { 1325 File path = getFileStreamPath(sTempCropFilename); 1326 path.delete(); 1327 tempStream = openFileOutput(sTempCropFilename, 0); 1328 tempStream.write(data); 1329 tempStream.close(); 1330 tempUri = Uri.fromFile(path); 1331 } catch (FileNotFoundException ex) { 1332 setResultEx(Activity.RESULT_CANCELED); 1333 finish(); 1334 return; 1335 } catch (IOException ex) { 1336 setResultEx(Activity.RESULT_CANCELED); 1337 finish(); 1338 return; 1339 } finally { 1340 Util.closeSilently(tempStream); 1341 } 1342 1343 Bundle newExtras = new Bundle(); 1344 if (mCropValue.equals("circle")) { 1345 newExtras.putString("circleCrop", "true"); 1346 } 1347 if (mSaveUri != null) { 1348 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1349 } else { 1350 newExtras.putBoolean("return-data", true); 1351 } 1352 1353 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1354 1355 cropIntent.setData(tempUri); 1356 cropIntent.putExtras(newExtras); 1357 1358 startActivityForResult(cropIntent, CROP_MSG); 1359 } 1360 } 1361 1362 private void doCancel() { 1363 setResultEx(RESULT_CANCELED, new Intent()); 1364 finish(); 1365 } 1366 1367 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1368 if (mPausing) { 1369 return; 1370 } 1371 switch (button.getId()) { 1372 case R.id.shutter_button: 1373 doFocus(pressed); 1374 break; 1375 } 1376 } 1377 1378 public void onShutterButtonClick(ShutterButton button) { 1379 if (mPausing) { 1380 return; 1381 } 1382 switch (button.getId()) { 1383 case R.id.shutter_button: 1384 doSnap(); 1385 break; 1386 } 1387 } 1388 1389 private OnScreenHint mStorageHint; 1390 1391 private void updateStorageHint() { 1392 String noStorageText = null; 1393 1394 if (mPicturesRemaining == Storage.UNAVAILABLE) { 1395 noStorageText = getString(R.string.no_storage); 1396 } else if (mPicturesRemaining == Storage.PREPARING) { 1397 noStorageText = getString(R.string.preparing_sd); 1398 } else if (mPicturesRemaining == Storage.UNKNOWN_SIZE) { 1399 noStorageText = getString(R.string.access_sd_fail); 1400 } else if (mPicturesRemaining < 1L) { 1401 noStorageText = getString(R.string.not_enough_space); 1402 } 1403 1404 if (noStorageText != null) { 1405 if (mStorageHint == null) { 1406 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1407 } else { 1408 mStorageHint.setText(noStorageText); 1409 } 1410 mStorageHint.show(); 1411 } else if (mStorageHint != null) { 1412 mStorageHint.cancel(); 1413 mStorageHint = null; 1414 } 1415 } 1416 1417 private void installIntentFilter() { 1418 // install an intent filter to receive SD card related events. 1419 IntentFilter intentFilter = 1420 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1421 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1422 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1423 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1424 intentFilter.addDataScheme("file"); 1425 registerReceiver(mReceiver, intentFilter); 1426 mDidRegister = true; 1427 } 1428 1429 private void initializeFocusTone() { 1430 // Initialize focus tone generator. 1431 try { 1432 mFocusToneGenerator = new ToneGenerator( 1433 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1434 } catch (Throwable ex) { 1435 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1436 mFocusToneGenerator = null; 1437 } 1438 } 1439 1440 private void initializeScreenBrightness() { 1441 Window win = getWindow(); 1442 // Overright the brightness settings if it is automatic 1443 int mode = Settings.System.getInt( 1444 getContentResolver(), 1445 Settings.System.SCREEN_BRIGHTNESS_MODE, 1446 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); 1447 if (mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC) { 1448 WindowManager.LayoutParams winParams = win.getAttributes(); 1449 winParams.screenBrightness = DEFAULT_CAMERA_BRIGHTNESS; 1450 win.setAttributes(winParams); 1451 } 1452 } 1453 1454 @Override 1455 protected void onResume() { 1456 super.onResume(); 1457 1458 mPausing = false; 1459 mJpegPictureCallbackTime = 0; 1460 mZoomValue = 0; 1461 1462 mReviewImage.setVisibility(View.GONE); 1463 1464 // Start the preview if it is not started. 1465 if (mCameraState == PREVIEW_STOPPED && !mStartPreviewFail) { 1466 resetExposureCompensation(); 1467 if (!restartPreview()) return; 1468 } 1469 1470 if (mSurfaceHolder != null) { 1471 // If first time initialization is not finished, put it in the 1472 // message queue. 1473 if (!mFirstTimeInitialized) { 1474 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1475 } else { 1476 initializeSecondTime(); 1477 } 1478 } 1479 keepScreenOnAwhile(); 1480 1481 if (mCameraState == IDLE) { 1482 mOnResumeTime = SystemClock.uptimeMillis(); 1483 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 1484 } 1485 } 1486 1487 @Override 1488 public void onConfigurationChanged(Configuration config) { 1489 super.onConfigurationChanged(config); 1490 changeHeadUpDisplayState(); 1491 } 1492 1493 @Override 1494 protected void onPause() { 1495 mPausing = true; 1496 stopPreview(); 1497 // Close the camera now because other activities may need to use it. 1498 closeCamera(); 1499 resetScreenOn(); 1500 collapseCameraControls(); 1501 changeHeadUpDisplayState(); 1502 1503 if (mFirstTimeInitialized) { 1504 mOrientationListener.disable(); 1505 if (!mIsImageCaptureIntent) { 1506 if (mThumbnail != null) mThumbnail.saveTo(LAST_THUMB_FILENAME); 1507 } 1508 hidePostCaptureAlert(); 1509 } 1510 1511 if (mDidRegister) { 1512 unregisterReceiver(mReceiver); 1513 mDidRegister = false; 1514 } 1515 stopReceivingLocationUpdates(); 1516 1517 if (mFocusToneGenerator != null) { 1518 mFocusToneGenerator.release(); 1519 mFocusToneGenerator = null; 1520 } 1521 1522 if (mStorageHint != null) { 1523 mStorageHint.cancel(); 1524 mStorageHint = null; 1525 } 1526 1527 // If we are in an image capture intent and has taken 1528 // a picture, we just clear it in onPause. 1529 mJpegImageData = null; 1530 1531 // Remove the messages in the event queue. 1532 mHandler.removeMessages(RESTART_PREVIEW); 1533 mHandler.removeMessages(FIRST_TIME_INIT); 1534 mHandler.removeMessages(CHECK_DISPLAY_ROTATION); 1535 mHandler.removeMessages(CANCEL_AUTOFOCUS); 1536 1537 super.onPause(); 1538 } 1539 1540 @Override 1541 protected void onActivityResult( 1542 int requestCode, int resultCode, Intent data) { 1543 switch (requestCode) { 1544 case CROP_MSG: { 1545 Intent intent = new Intent(); 1546 if (data != null) { 1547 Bundle extras = data.getExtras(); 1548 if (extras != null) { 1549 intent.putExtras(extras); 1550 } 1551 } 1552 setResultEx(resultCode, intent); 1553 finish(); 1554 1555 File path = getFileStreamPath(sTempCropFilename); 1556 path.delete(); 1557 1558 break; 1559 } 1560 } 1561 } 1562 1563 private boolean canTakePicture() { 1564 return isCameraIdle() && (mPicturesRemaining > 0); 1565 } 1566 1567 private void autoFocus() { 1568 Log.v(TAG, "Start autofocus."); 1569 mFocusStartTime = System.currentTimeMillis(); 1570 mCameraDevice.autoFocus(mAutoFocusCallback); 1571 mCameraState = FOCUSING; 1572 enableCameraControls(false); 1573 updateFocusUI(); 1574 mHandler.removeMessages(CANCEL_AUTOFOCUS); 1575 } 1576 1577 private void cancelAutoFocus() { 1578 Log.v(TAG, "Cancel autofocus."); 1579 mCameraDevice.cancelAutoFocus(); 1580 mCameraState = IDLE; 1581 enableCameraControls(true); 1582 resetTouchFocus(); 1583 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1584 updateFocusUI(); 1585 mHandler.removeMessages(CANCEL_AUTOFOCUS); 1586 } 1587 1588 private void updateFocusUI() { 1589 if (mCameraState == FOCUSING || mCameraState == FOCUSING_SNAP_ON_FINISH) { 1590 mFocusRectangle.showStart(); 1591 } else if (mCameraState == FOCUS_SUCCESS) { 1592 mFocusRectangle.showSuccess(); 1593 } else if (mCameraState == FOCUS_FAIL) { 1594 mFocusRectangle.showFail(); 1595 } else { 1596 mFocusRectangle.clear(); 1597 } 1598 } 1599 1600 // Preview area is touched. Handle touch focus. 1601 @Override 1602 public boolean onTouch(View v, MotionEvent e) { 1603 if (e.getAction() != MotionEvent.ACTION_DOWN) return false; 1604 1605 // Do not trigger touch focus when popup window is dismissed. 1606 if (collapseCameraControls()) return false; 1607 1608 if (mPausing || !mFirstTimeInitialized || !canTakePicture()) { 1609 return false; 1610 } 1611 1612 // Take a picture if metering area or focus area is supported. 1613 if (mParameters.getMaxNumMeteringAreas() == 0 1614 && (mParameters.getMaxNumFocusAreas() == 0 1615 || (!mFocusMode.equals(Parameters.FOCUS_MODE_AUTO) && 1616 !mFocusMode.equals(Parameters.FOCUS_MODE_MACRO) && 1617 !mFocusMode.equals(Parameters.FOCUS_MODE_CONTINUOUS_VIDEO)))) { 1618 return false; 1619 } 1620 1621 // Calculate the position of the focus rectangle. 1622 int x = Math.round(e.getX()); 1623 int y = Math.round(e.getY()); 1624 int focusWidth = mFocusRectangle.getWidth(); 1625 int focusHeight = mFocusRectangle.getHeight(); 1626 int left = Util.clamp(x - focusWidth / 2, 0, 1627 mPreviewFrame.getWidth() - focusWidth); 1628 int top = Util.clamp(y - focusHeight / 2, 0, 1629 mPreviewFrame.getHeight() - focusHeight); 1630 Log.d(TAG, "x=" + x + ". y=" + y); 1631 Log.d(TAG, "Margin left=" + left + ". top=" + top); 1632 Log.d(TAG, "Preview width=" + mPreviewFrame.getWidth() + 1633 ". height=" + mPreviewFrame.getHeight()); 1634 Log.d(TAG, "focusWidth=" + focusWidth + ". focusHeight=" + focusHeight); 1635 1636 // Convert the coordinates to driver format. The coordinates range from 1637 // -1000 to 1000. 1638 if (mFocusArea == null) { 1639 mFocusArea = new ArrayList<Area>(); 1640 mFocusArea.add(new Area(new Rect(), 1)); 1641 } 1642 Rect rect = mFocusArea.get(0).rect; 1643 convertToFocusArea(left, top, focusWidth, focusHeight, mPreviewFrame.getWidth(), 1644 mPreviewFrame.getHeight(), mFocusArea.get(0).rect); 1645 1646 // Use margin to set the focus rectangle to the touched area. 1647 RelativeLayout.LayoutParams p = 1648 (RelativeLayout.LayoutParams) mFocusRectangle.getLayoutParams(); 1649 p.setMargins(left + mPreviewBorder.getPaddingLeft(), 1650 top + mPreviewBorder.getPaddingTop(), 0, 0); 1651 // Disable "center" rule because we no longer want to put it in the center. 1652 int[] rules = p.getRules(); 1653 rules[RelativeLayout.CENTER_IN_PARENT] = 0; 1654 mFocusRectangle.requestLayout(); 1655 1656 // Set the focus area and do autofocus. 1657 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1658 autoFocus(); 1659 1660 return true; 1661 } 1662 1663 // Convert the touch point to the focus area in driver format. 1664 public static void convertToFocusArea(int left, int top, int focusWidth, int focusHeight, 1665 int previewWidth, int previewHeight, Rect rect) { 1666 rect.left = Math.round((float) left / previewWidth * 2000 - 1000); 1667 rect.top = Math.round((float) top / previewHeight * 2000 - 1000); 1668 rect.right = Math.round((float) (left + focusWidth) / previewWidth * 2000 - 1000); 1669 rect.bottom = Math.round((float) (top + focusHeight) / previewHeight * 2000 - 1000); 1670 } 1671 1672 void resetTouchFocus() { 1673 // Put focus rectangle to the center. 1674 RelativeLayout.LayoutParams p = 1675 (RelativeLayout.LayoutParams) mFocusRectangle.getLayoutParams(); 1676 int[] rules = p.getRules(); 1677 rules[RelativeLayout.CENTER_IN_PARENT] = RelativeLayout.TRUE; 1678 p.setMargins(0, 0, 0, 0); 1679 1680 mFocusArea = null; 1681 } 1682 1683 @Override 1684 public void onBackPressed() { 1685 if (!isCameraIdle()) { 1686 // ignore backs while we're taking a picture 1687 return; 1688 } else if (!collapseCameraControls()) { 1689 super.onBackPressed(); 1690 } 1691 } 1692 1693 @Override 1694 public boolean onKeyDown(int keyCode, KeyEvent event) { 1695 switch (keyCode) { 1696 case KeyEvent.KEYCODE_FOCUS: 1697 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1698 doFocus(true); 1699 } 1700 return true; 1701 case KeyEvent.KEYCODE_CAMERA: 1702 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1703 doSnap(); 1704 } 1705 return true; 1706 case KeyEvent.KEYCODE_DPAD_CENTER: 1707 // If we get a dpad center event without any focused view, move 1708 // the focus to the shutter button and press it. 1709 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1710 // Start auto-focus immediately to reduce shutter lag. After 1711 // the shutter button gets the focus, doFocus() will be 1712 // called again but it is fine. 1713 if (collapseCameraControls()) return true; 1714 doFocus(true); 1715 if (mShutterButton.isInTouchMode()) { 1716 mShutterButton.requestFocusFromTouch(); 1717 } else { 1718 mShutterButton.requestFocus(); 1719 } 1720 mShutterButton.setPressed(true); 1721 } 1722 return true; 1723 } 1724 1725 return super.onKeyDown(keyCode, event); 1726 } 1727 1728 @Override 1729 public boolean onKeyUp(int keyCode, KeyEvent event) { 1730 switch (keyCode) { 1731 case KeyEvent.KEYCODE_FOCUS: 1732 if (mFirstTimeInitialized) { 1733 doFocus(false); 1734 } 1735 return true; 1736 } 1737 return super.onKeyUp(keyCode, event); 1738 } 1739 1740 private void doSnap() { 1741 if (collapseCameraControls()) return; 1742 1743 Log.v(TAG, "doSnap: mCameraState=" + mCameraState); 1744 // If the user has half-pressed the shutter and focus is completed, we 1745 // can take the photo right away. If the focus mode is infinity, we can 1746 // also take the photo. 1747 if (mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1748 || mFocusMode.equals(Parameters.FOCUS_MODE_FIXED) 1749 || mFocusMode.equals(Parameters.FOCUS_MODE_EDOF) 1750 || (mCameraState == FOCUS_SUCCESS 1751 || mCameraState == FOCUS_FAIL)) { 1752 capture(); 1753 } else if (mCameraState == FOCUSING) { 1754 // Half pressing the shutter (i.e. the focus button event) will 1755 // already have requested AF for us, so just request capture on 1756 // focus here. 1757 mCameraState = FOCUSING_SNAP_ON_FINISH; 1758 } else if (mCameraState == IDLE) { 1759 // Focus key down event is dropped for some reasons. Just ignore. 1760 } 1761 } 1762 1763 private void doFocus(boolean pressed) { 1764 // Do the focus if the mode is not infinity. 1765 if (collapseCameraControls()) return; 1766 if (!(mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1767 || mFocusMode.equals(Parameters.FOCUS_MODE_FIXED) 1768 || mFocusMode.equals(Parameters.FOCUS_MODE_EDOF))) { 1769 if (pressed) { // Focus key down. 1770 // Do not do focus if there is not enoguh storage. Do not focus 1771 // if touch focus has been triggered, that is, camera state is 1772 // FOCUS_SUCCESS or FOCUS_FAIL. 1773 if (canTakePicture() && mCameraState != FOCUS_SUCCESS 1774 && mCameraState != FOCUS_FAIL) { 1775 autoFocus(); 1776 } 1777 } else { // Focus key up. 1778 // User releases half-pressed focus key. 1779 if (mCameraState == FOCUSING || mCameraState == FOCUS_SUCCESS 1780 || mCameraState == FOCUS_FAIL) { 1781 cancelAutoFocus(); 1782 } 1783 } 1784 } 1785 } 1786 1787 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1788 // Make sure we have a surface in the holder before proceeding. 1789 if (holder.getSurface() == null) { 1790 Log.d(TAG, "holder.getSurface() == null"); 1791 return; 1792 } 1793 1794 Log.v(TAG, "surfaceChanged. w=" + w + ". h=" + h); 1795 1796 // We need to save the holder for later use, even when the mCameraDevice 1797 // is null. This could happen if onResume() is invoked after this 1798 // function. 1799 mSurfaceHolder = holder; 1800 1801 // The mCameraDevice will be null if it fails to connect to the camera 1802 // hardware. In this case we will show a dialog and then finish the 1803 // activity, so it's OK to ignore it. 1804 if (mCameraDevice == null) return; 1805 1806 // Sometimes surfaceChanged is called after onPause or before onResume. 1807 // Ignore it. 1808 if (mPausing || isFinishing()) return; 1809 1810 // Set preview display if the surface is being created. Preview was 1811 // already started. Also restart the preview if display rotation has 1812 // changed. Sometimes this happens when the device is held in portrait 1813 // and camera app is opened. Rotation animation takes some time and 1814 // display rotation in onCreate may not be what we want. 1815 if (mCameraState != PREVIEW_STOPPED 1816 && (Util.getDisplayRotation(this) == mDisplayRotation) 1817 && holder.isCreating()) { 1818 // Set preview display if the surface is being created and preview 1819 // was already started. That means preview display was set to null 1820 // and we need to set it now. 1821 setPreviewDisplay(holder); 1822 } else { 1823 // 1. Restart the preview if the size of surface was changed. The 1824 // framework may not support changing preview display on the fly. 1825 // 2. Start the preview now if surface was destroyed and preview 1826 // stopped. 1827 restartPreview(); 1828 } 1829 1830 // If first time initialization is not finished, send a message to do 1831 // it later. We want to finish surfaceChanged as soon as possible to let 1832 // user see preview first. 1833 if (!mFirstTimeInitialized) { 1834 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1835 } else { 1836 initializeSecondTime(); 1837 } 1838 } 1839 1840 public void surfaceCreated(SurfaceHolder holder) { 1841 } 1842 1843 public void surfaceDestroyed(SurfaceHolder holder) { 1844 stopPreview(); 1845 mSurfaceHolder = null; 1846 } 1847 1848 private void closeCamera() { 1849 if (mCameraDevice != null) { 1850 CameraHolder.instance().release(); 1851 mCameraDevice.setZoomChangeListener(null); 1852 mCameraDevice = null; 1853 mCameraState = PREVIEW_STOPPED; 1854 } 1855 } 1856 1857 private void ensureCameraDevice() throws CameraHardwareException { 1858 if (mCameraDevice == null) { 1859 mCameraDevice = CameraHolder.instance().open(mCameraId); 1860 mInitialParams = mCameraDevice.getParameters(); 1861 } 1862 } 1863 1864 private void showCameraErrorAndFinish() { 1865 Resources ress = getResources(); 1866 Util.showFatalErrorAndFinish(Camera.this, 1867 ress.getString(R.string.camera_error_title), 1868 ress.getString(R.string.cannot_connect_camera)); 1869 } 1870 1871 private boolean restartPreview() { 1872 try { 1873 startPreview(); 1874 } catch (CameraHardwareException e) { 1875 showCameraErrorAndFinish(); 1876 return false; 1877 } 1878 return true; 1879 } 1880 1881 private void setPreviewDisplay(SurfaceHolder holder) { 1882 try { 1883 mCameraDevice.setPreviewDisplay(holder); 1884 } catch (Throwable ex) { 1885 closeCamera(); 1886 throw new RuntimeException("setPreviewDisplay failed", ex); 1887 } 1888 } 1889 1890 private void startPreview() throws CameraHardwareException { 1891 if (mPausing || isFinishing()) return; 1892 1893 resetTouchFocus(); 1894 1895 ensureCameraDevice(); 1896 mCameraDevice.setErrorCallback(mErrorCallback); 1897 1898 // If we're previewing already, stop the preview first (this will blank 1899 // the screen). 1900 if (mCameraState != PREVIEW_STOPPED) stopPreview(); 1901 1902 setPreviewDisplay(mSurfaceHolder); 1903 mDisplayRotation = Util.getDisplayRotation(this); 1904 Util.setCameraDisplayOrientation(mDisplayRotation, mCameraId, mCameraDevice); 1905 setCameraParameters(UPDATE_PARAM_ALL); 1906 1907 1908 try { 1909 Log.v(TAG, "startPreview"); 1910 mCameraDevice.startPreview(); 1911 } catch (Throwable ex) { 1912 closeCamera(); 1913 throw new RuntimeException("startPreview failed", ex); 1914 } 1915 mZoomState = ZOOM_STOPPED; 1916 mCameraState = IDLE; 1917 } 1918 1919 private void stopPreview() { 1920 if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) { 1921 Log.v(TAG, "stopPreview"); 1922 mCameraDevice.stopPreview(); 1923 } 1924 mCameraState = PREVIEW_STOPPED; 1925 // If auto focus was in progress, it would have been canceled. 1926 updateFocusUI(); 1927 } 1928 1929 private static boolean isSupported(String value, List<String> supported) { 1930 return supported == null ? false : supported.indexOf(value) >= 0; 1931 } 1932 1933 private void updateCameraParametersInitialize() { 1934 // Reset preview frame rate to the maximum because it may be lowered by 1935 // video camera application. 1936 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1937 if (frameRates != null) { 1938 Integer max = Collections.max(frameRates); 1939 mParameters.setPreviewFrameRate(max); 1940 } 1941 1942 } 1943 1944 private void updateCameraParametersZoom() { 1945 // Set zoom. 1946 if (mParameters.isZoomSupported()) { 1947 mParameters.setZoom(mZoomValue); 1948 } 1949 } 1950 1951 private void updateCameraParametersPreference() { 1952 if (mParameters.getMaxNumFocusAreas() > 0) { 1953 mParameters.setFocusAreas(mFocusArea); 1954 Log.d(TAG, "Parameter focus areas=" + mParameters.get("focus-areas")); 1955 } 1956 1957 if (mParameters.getMaxNumMeteringAreas() > 0) { 1958 // Use the same area for focus and metering. 1959 mParameters.setMeteringAreas(mFocusArea); 1960 } 1961 1962 // Set picture size. 1963 String pictureSize = mPreferences.getString( 1964 CameraSettings.KEY_PICTURE_SIZE, null); 1965 if (pictureSize == null) { 1966 CameraSettings.initialCameraPictureSize(this, mParameters); 1967 } else { 1968 List<Size> supported = mParameters.getSupportedPictureSizes(); 1969 CameraSettings.setCameraPictureSize( 1970 pictureSize, supported, mParameters); 1971 } 1972 1973 // Set the preview frame aspect ratio according to the picture size. 1974 Size size = mParameters.getPictureSize(); 1975 PreviewFrameLayout frameLayout = 1976 (PreviewFrameLayout) findViewById(R.id.frame_layout); 1977 frameLayout.setAspectRatio((double) size.width / size.height); 1978 1979 // Set a preview size that is closest to the viewfinder height and has 1980 // the right aspect ratio. 1981 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1982 Size optimalSize = Util.getOptimalPreviewSize(this, 1983 sizes, (double) size.width / size.height); 1984 Size original = mParameters.getPreviewSize(); 1985 if (!original.equals(optimalSize)) { 1986 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1987 1988 // Zoom related settings will be changed for different preview 1989 // sizes, so set and read the parameters to get lastest values 1990 mCameraDevice.setParameters(mParameters); 1991 mParameters = mCameraDevice.getParameters(); 1992 } 1993 Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height); 1994 1995 // Since change scene mode may change supported values, 1996 // Set scene mode first, 1997 mSceneMode = mPreferences.getString( 1998 CameraSettings.KEY_SCENE_MODE, 1999 getString(R.string.pref_camera_scenemode_default)); 2000 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 2001 if (!mParameters.getSceneMode().equals(mSceneMode)) { 2002 mParameters.setSceneMode(mSceneMode); 2003 mCameraDevice.setParameters(mParameters); 2004 2005 // Setting scene mode will change the settings of flash mode, 2006 // white balance, and focus mode. Here we read back the 2007 // parameters, so we can know those settings. 2008 mParameters = mCameraDevice.getParameters(); 2009 } 2010 } else { 2011 mSceneMode = mParameters.getSceneMode(); 2012 if (mSceneMode == null) { 2013 mSceneMode = Parameters.SCENE_MODE_AUTO; 2014 } 2015 } 2016 2017 // Set JPEG quality. 2018 String jpegQuality = mPreferences.getString( 2019 CameraSettings.KEY_JPEG_QUALITY, 2020 getString(R.string.pref_camera_jpegquality_default)); 2021 mParameters.setJpegQuality(JpegEncodingQualityMappings.getQualityNumber(jpegQuality)); 2022 2023 // For the following settings, we need to check if the settings are 2024 // still supported by latest driver, if not, ignore the settings. 2025 2026 // Set color effect parameter. 2027 String colorEffect = mPreferences.getString( 2028 CameraSettings.KEY_COLOR_EFFECT, 2029 getString(R.string.pref_camera_coloreffect_default)); 2030 if (isSupported(colorEffect, mParameters.getSupportedColorEffects())) { 2031 mParameters.setColorEffect(colorEffect); 2032 } 2033 2034 // Set exposure compensation 2035 String exposure = mPreferences.getString( 2036 CameraSettings.KEY_EXPOSURE, 2037 getString(R.string.pref_exposure_default)); 2038 try { 2039 int value = Integer.parseInt(exposure); 2040 int max = mParameters.getMaxExposureCompensation(); 2041 int min = mParameters.getMinExposureCompensation(); 2042 if (value >= min && value <= max) { 2043 mParameters.setExposureCompensation(value); 2044 } else { 2045 Log.w(TAG, "invalid exposure range: " + exposure); 2046 } 2047 } catch (NumberFormatException e) { 2048 Log.w(TAG, "invalid exposure: " + exposure); 2049 } 2050 2051 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 2052 // Set flash mode. 2053 String flashMode = mPreferences.getString( 2054 CameraSettings.KEY_FLASH_MODE, 2055 getString(R.string.pref_camera_flashmode_default)); 2056 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 2057 if (isSupported(flashMode, supportedFlash)) { 2058 mParameters.setFlashMode(flashMode); 2059 } else { 2060 flashMode = mParameters.getFlashMode(); 2061 if (flashMode == null) { 2062 flashMode = getString( 2063 R.string.pref_camera_flashmode_no_flash); 2064 } 2065 } 2066 2067 // Set white balance parameter. 2068 String whiteBalance = mPreferences.getString( 2069 CameraSettings.KEY_WHITE_BALANCE, 2070 getString(R.string.pref_camera_whitebalance_default)); 2071 if (isSupported(whiteBalance, 2072 mParameters.getSupportedWhiteBalance())) { 2073 mParameters.setWhiteBalance(whiteBalance); 2074 } else { 2075 whiteBalance = mParameters.getWhiteBalance(); 2076 if (whiteBalance == null) { 2077 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 2078 } 2079 } 2080 2081 // Set focus mode. 2082 mFocusMode = mPreferences.getString( 2083 CameraSettings.KEY_FOCUS_MODE, 2084 getString(R.string.pref_camera_focusmode_default)); 2085 if (isSupported(mFocusMode, mParameters.getSupportedFocusModes())) { 2086 mParameters.setFocusMode(mFocusMode); 2087 } else { 2088 mFocusMode = mParameters.getFocusMode(); 2089 if (mFocusMode == null) { 2090 mFocusMode = Parameters.FOCUS_MODE_AUTO; 2091 } 2092 } 2093 } else { 2094 mFocusMode = mParameters.getFocusMode(); 2095 } 2096 } 2097 2098 // We separate the parameters into several subsets, so we can update only 2099 // the subsets actually need updating. The PREFERENCE set needs extra 2100 // locking because the preference can be changed from GLThread as well. 2101 private void setCameraParameters(int updateSet) { 2102 mParameters = mCameraDevice.getParameters(); 2103 2104 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 2105 updateCameraParametersInitialize(); 2106 } 2107 2108 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 2109 updateCameraParametersZoom(); 2110 } 2111 2112 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 2113 updateCameraParametersPreference(); 2114 } 2115 2116 mCameraDevice.setParameters(mParameters); 2117 } 2118 2119 // If the Camera is idle, update the parameters immediately, otherwise 2120 // accumulate them in mUpdateSet and update later. 2121 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 2122 mUpdateSet |= additionalUpdateSet; 2123 if (mCameraDevice == null) { 2124 // We will update all the parameters when we open the device, so 2125 // we don't need to do anything now. 2126 mUpdateSet = 0; 2127 return; 2128 } else if (isCameraIdle()) { 2129 setCameraParameters(mUpdateSet); 2130 updateSceneModeUI(); 2131 mUpdateSet = 0; 2132 } else { 2133 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 2134 mHandler.sendEmptyMessageDelayed( 2135 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 2136 } 2137 } 2138 } 2139 2140 private void gotoGallery() { 2141 MenuHelper.gotoCameraImageGallery(this); 2142 } 2143 2144 private void startReceivingLocationUpdates() { 2145 if (mLocationManager != null) { 2146 try { 2147 mLocationManager.requestLocationUpdates( 2148 LocationManager.NETWORK_PROVIDER, 2149 1000, 2150 0F, 2151 mLocationListeners[1]); 2152 } catch (SecurityException ex) { 2153 Log.i(TAG, "fail to request location update, ignore", ex); 2154 } catch (IllegalArgumentException ex) { 2155 Log.d(TAG, "provider does not exist " + ex.getMessage()); 2156 } 2157 try { 2158 mLocationManager.requestLocationUpdates( 2159 LocationManager.GPS_PROVIDER, 2160 1000, 2161 0F, 2162 mLocationListeners[0]); 2163 showGpsOnScreenIndicator(false); 2164 } catch (SecurityException ex) { 2165 Log.i(TAG, "fail to request location update, ignore", ex); 2166 } catch (IllegalArgumentException ex) { 2167 Log.d(TAG, "provider does not exist " + ex.getMessage()); 2168 } 2169 Log.d(TAG, "startReceivingLocationUpdates"); 2170 } 2171 } 2172 2173 private void stopReceivingLocationUpdates() { 2174 if (mLocationManager != null) { 2175 for (int i = 0; i < mLocationListeners.length; i++) { 2176 try { 2177 mLocationManager.removeUpdates(mLocationListeners[i]); 2178 } catch (Exception ex) { 2179 Log.i(TAG, "fail to remove location listners, ignore", ex); 2180 } 2181 } 2182 Log.d(TAG, "stopReceivingLocationUpdates"); 2183 } 2184 hideGpsOnScreenIndicator(); 2185 } 2186 2187 private Location getCurrentLocation() { 2188 // go in best to worst order 2189 for (int i = 0; i < mLocationListeners.length; i++) { 2190 Location l = mLocationListeners[i].current(); 2191 if (l != null) return l; 2192 } 2193 Log.d(TAG, "No location received yet."); 2194 return null; 2195 } 2196 2197 private boolean isCameraIdle() { 2198 return mCameraState == IDLE || mCameraState == FOCUS_SUCCESS || mCameraState == FOCUS_FAIL; 2199 } 2200 2201 private boolean isImageCaptureIntent() { 2202 String action = getIntent().getAction(); 2203 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 2204 } 2205 2206 private void setupCaptureParams() { 2207 Bundle myExtras = getIntent().getExtras(); 2208 if (myExtras != null) { 2209 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 2210 mCropValue = myExtras.getString("crop"); 2211 } 2212 } 2213 2214 private void showPostCaptureAlert() { 2215 if (mIsImageCaptureIntent) { 2216 if (mIndicatorWheel == null) { 2217 mShutterButton.setVisibility(View.INVISIBLE); 2218 } else { 2219 mShutterButton.setEnabled(false); 2220 } 2221 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2222 for (int id : pickIds) { 2223 View button = findViewById(id); 2224 ((View) button.getParent()).setVisibility(View.VISIBLE); 2225 } 2226 2227 // Remove the text of the cancel button 2228 View view = findViewById(R.id.btn_cancel); 2229 if (view instanceof Button) ((Button) view).setText(""); 2230 } 2231 } 2232 2233 private void hidePostCaptureAlert() { 2234 if (mIsImageCaptureIntent) { 2235 if (mIndicatorWheel == null) { 2236 mShutterButton.setVisibility(View.VISIBLE); 2237 } else { 2238 mShutterButton.setEnabled(true); 2239 } 2240 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2241 for (int id : pickIds) { 2242 View button = findViewById(id); 2243 ((View) button.getParent()).setVisibility(View.GONE); 2244 } 2245 enableCameraControls(true); 2246 2247 // Restore the text of the cancel button 2248 View view = findViewById(R.id.btn_cancel); 2249 if (view instanceof Button) { 2250 ((Button) view).setText(R.string.review_cancel); 2251 } 2252 } 2253 } 2254 2255 @Override 2256 public boolean onPrepareOptionsMenu(Menu menu) { 2257 super.onPrepareOptionsMenu(menu); 2258 // Only show the menu when camera is idle. 2259 for (int i = 0; i < menu.size(); i++) { 2260 menu.getItem(i).setVisible(isCameraIdle()); 2261 } 2262 2263 return true; 2264 } 2265 2266 @Override 2267 public boolean onCreateOptionsMenu(Menu menu) { 2268 super.onCreateOptionsMenu(menu); 2269 2270 if (mIsImageCaptureIntent) { 2271 // No options menu for attach mode. 2272 return false; 2273 } else { 2274 addBaseMenuItems(menu); 2275 } 2276 return true; 2277 } 2278 2279 private void addBaseMenuItems(Menu menu) { 2280 MenuHelper.addSwitchModeMenuItem(menu, true, new Runnable() { 2281 public void run() { 2282 switchToVideoMode(); 2283 } 2284 }); 2285 MenuItem gallery = menu.add(Menu.NONE, Menu.NONE, 2286 MenuHelper.POSITION_GOTO_GALLERY, 2287 R.string.camera_gallery_photos_text) 2288 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2289 public boolean onMenuItemClick(MenuItem item) { 2290 gotoGallery(); 2291 return true; 2292 } 2293 }); 2294 gallery.setIcon(android.R.drawable.ic_menu_gallery); 2295 mGalleryItems.add(gallery); 2296 2297 if (mNumberOfCameras > 1) { 2298 menu.add(Menu.NONE, Menu.NONE, 2299 MenuHelper.POSITION_SWITCH_CAMERA_ID, 2300 R.string.switch_camera_id) 2301 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2302 public boolean onMenuItemClick(MenuItem item) { 2303 CameraSettings.writePreferredCameraId(mPreferences, 2304 ((mCameraId == mFrontCameraId) 2305 ? mBackCameraId : mFrontCameraId)); 2306 onSharedPreferenceChanged(); 2307 return true; 2308 } 2309 }).setIcon(android.R.drawable.ic_menu_camera); 2310 } 2311 } 2312 2313 private boolean switchToVideoMode() { 2314 if (isFinishing() || !isCameraIdle()) return false; 2315 MenuHelper.gotoVideoMode(Camera.this); 2316 mHandler.removeMessages(FIRST_TIME_INIT); 2317 finish(); 2318 return true; 2319 } 2320 2321 public boolean onSwitchChanged(Switcher source, boolean onOff) { 2322 if (onOff == SWITCH_VIDEO) { 2323 return switchToVideoMode(); 2324 } else { 2325 return true; 2326 } 2327 } 2328 2329 private void onSharedPreferenceChanged() { 2330 // ignore the events after "onPause()" 2331 if (mPausing) return; 2332 2333 boolean recordLocation; 2334 2335 recordLocation = RecordLocationPreference.get( 2336 mPreferences, getContentResolver()); 2337 2338 if (mRecordLocation != recordLocation) { 2339 mRecordLocation = recordLocation; 2340 if (mRecordLocation) { 2341 startReceivingLocationUpdates(); 2342 } else { 2343 stopReceivingLocationUpdates(); 2344 } 2345 } 2346 int cameraId = CameraSettings.readPreferredCameraId(mPreferences); 2347 if (mCameraId != cameraId) { 2348 // Restart the activity to have a crossfade animation. 2349 // TODO: Use SurfaceTexture to implement a better and faster 2350 // animation. 2351 if (mIsImageCaptureIntent) { 2352 // If the intent is camera capture, stay in camera capture mode. 2353 MenuHelper.gotoCameraMode(this, getIntent()); 2354 } else { 2355 MenuHelper.gotoCameraMode(this); 2356 } 2357 2358 finish(); 2359 } else { 2360 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 2361 } 2362 } 2363 2364 @Override 2365 public void onUserInteraction() { 2366 super.onUserInteraction(); 2367 keepScreenOnAwhile(); 2368 } 2369 2370 private void resetScreenOn() { 2371 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2372 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2373 } 2374 2375 private void keepScreenOnAwhile() { 2376 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2377 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2378 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2379 } 2380 2381 private class MyHeadUpDisplayListener implements HeadUpDisplay.Listener { 2382 2383 public void onSharedPreferenceChanged() { 2384 Camera.this.onSharedPreferenceChanged(); 2385 } 2386 2387 public void onRestorePreferencesClicked() { 2388 Camera.this.onRestorePreferencesClicked(); 2389 } 2390 2391 public void onPopupWindowVisibilityChanged(int visibility) { 2392 } 2393 } 2394 2395 protected void onRestorePreferencesClicked() { 2396 if (mPausing) return; 2397 Runnable runnable = new Runnable() { 2398 public void run() { 2399 restorePreferences(); 2400 } 2401 }; 2402 MenuHelper.confirmAction(this, 2403 getString(R.string.confirm_restore_title), 2404 getString(R.string.confirm_restore_message), 2405 runnable); 2406 } 2407 2408 private void restorePreferences() { 2409 // Reset the zoom. Zoom value is not stored in preference. 2410 if (mParameters.isZoomSupported()) { 2411 mZoomValue = 0; 2412 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 2413 if (mZoomPicker != null) mZoomPicker.setZoomIndex(0); 2414 } 2415 2416 if (mHeadUpDisplay != null) { 2417 mHeadUpDisplay.restorePreferences(mParameters); 2418 } 2419 2420 if (mIndicatorWheel != null) { 2421 mIndicatorWheel.dismissSettingPopup(); 2422 CameraSettings.restorePreferences(Camera.this, mPreferences, 2423 mParameters); 2424 initializeIndicatorWheel(); 2425 onSharedPreferenceChanged(); 2426 } 2427 } 2428 2429 protected void onOverriddenPreferencesClicked() { 2430 if (mPausing) return; 2431 if (mNotSelectableToast == null) { 2432 String str = getResources().getString(R.string.not_selectable_in_scene_mode); 2433 mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT); 2434 } 2435 mNotSelectableToast.show(); 2436 } 2437 2438 private void onShareButtonClicked() { 2439 if (mPausing) return; 2440 2441 // Share the last captured picture. 2442 if (mThumbnail != null) { 2443 mReviewImage.setImageBitmap(mThumbnail.getBitmap()); 2444 mReviewImage.setVisibility(View.VISIBLE); 2445 2446 Intent intent = new Intent(Intent.ACTION_SEND); 2447 intent.setType("image/jpeg"); 2448 intent.putExtra(Intent.EXTRA_STREAM, mThumbnail.getUri()); 2449 startActivity(Intent.createChooser(intent, getString(R.string.share_picture_via))); 2450 } else { // No last picture 2451 if (mNoShareToast == null) { 2452 mNoShareToast = Toast.makeText(this, 2453 getResources().getString(R.string.no_picture_to_share), Toast.LENGTH_SHORT); 2454 } 2455 mNoShareToast.show(); 2456 } 2457 } 2458 2459 private class MyIndicatorWheelListener implements IndicatorWheel.Listener { 2460 public void onSharedPreferenceChanged() { 2461 Camera.this.onSharedPreferenceChanged(); 2462 } 2463 2464 public void onRestorePreferencesClicked() { 2465 Camera.this.onRestorePreferencesClicked(); 2466 } 2467 2468 public void onOverriddenPreferencesClicked() { 2469 Camera.this.onOverriddenPreferencesClicked(); 2470 } 2471 2472 public void onShareButtonClicked() { 2473 Camera.this.onShareButtonClicked(); 2474 } 2475 } 2476 2477 private class MyCameraPickerListener implements CameraPicker.Listener { 2478 public void onSharedPreferenceChanged() { 2479 Camera.this.onSharedPreferenceChanged(); 2480 } 2481 } 2482} 2483