Camera.java revision d50b09687918ae1c89e9c19175e217910b330c60
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.camera; 18 19import com.android.camera.ui.CameraHeadUpDisplay; 20import com.android.camera.ui.CameraPicker; 21import com.android.camera.ui.FocusRectangle; 22import com.android.camera.ui.GLRootView; 23import com.android.camera.ui.HeadUpDisplay; 24import com.android.camera.ui.IndicatorWheel; 25import com.android.camera.ui.ZoomControllerListener; 26import com.android.camera.ui.ZoomPicker; 27 28import android.app.Activity; 29import android.content.ActivityNotFoundException; 30import android.content.BroadcastReceiver; 31import android.content.ContentProviderClient; 32import android.content.ContentResolver; 33import android.content.Context; 34import android.content.Intent; 35import android.content.IntentFilter; 36import android.content.SharedPreferences.Editor; 37import android.content.res.Configuration; 38import android.content.res.Resources; 39import android.database.Cursor; 40import android.graphics.Bitmap; 41import android.graphics.BitmapFactory; 42import android.graphics.Rect; 43import android.hardware.Camera.Area; 44import android.hardware.Camera.CameraInfo; 45import android.hardware.Camera.Parameters; 46import android.hardware.Camera.PictureCallback; 47import android.hardware.Camera.Size; 48import android.location.Location; 49import android.location.LocationManager; 50import android.location.LocationProvider; 51import android.media.AudioManager; 52import android.media.ToneGenerator; 53import android.net.Uri; 54import android.os.Build; 55import android.os.Bundle; 56import android.os.Handler; 57import android.os.Looper; 58import android.os.Message; 59import android.os.MessageQueue; 60import android.os.SystemClock; 61import android.provider.MediaStore; 62import android.provider.Settings; 63import android.provider.MediaStore.Images.ImageColumns; 64import android.provider.MediaStore.Images.Media; 65import android.util.Log; 66import android.view.GestureDetector; 67import android.view.KeyEvent; 68import android.view.LayoutInflater; 69import android.view.Menu; 70import android.view.MenuItem; 71import android.view.MotionEvent; 72import android.view.OrientationEventListener; 73import android.view.SurfaceHolder; 74import android.view.SurfaceView; 75import android.view.View; 76import android.view.ViewGroup; 77import android.view.ViewStub; 78import android.view.Window; 79import android.view.WindowManager; 80import android.view.MenuItem.OnMenuItemClickListener; 81import android.widget.Button; 82import android.widget.RelativeLayout; 83import android.widget.Toast; 84 85import java.io.File; 86import java.io.FileNotFoundException; 87import java.io.FileOutputStream; 88import java.io.IOException; 89import java.io.OutputStream; 90import java.text.SimpleDateFormat; 91import java.util.ArrayList; 92import java.util.Collections; 93import java.util.Date; 94import java.util.HashMap; 95import java.util.List; 96 97/** The Camera activity which can preview and take pictures. */ 98public class Camera extends ActivityBase implements View.OnClickListener, 99 View.OnTouchListener, ShutterButton.OnShutterButtonListener, 100 SurfaceHolder.Callback, Switcher.OnSwitchListener { 101 102 private static final String TAG = "camera"; 103 104 private static final String LAST_THUMB_PATH = 105 Storage.THUMBNAILS + "/image_last_thumb"; 106 107 private static final int CROP_MSG = 1; 108 private static final int FIRST_TIME_INIT = 2; 109 private static final int RESTART_PREVIEW = 3; 110 private static final int CLEAR_SCREEN_DELAY = 4; 111 private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 5; 112 private static final int CHECK_DISPLAY_ROTATION = 6; 113 private static final int CANCEL_AUTOFOCUS = 7; 114 115 // The subset of parameters we need to update in setCameraParameters(). 116 private static final int UPDATE_PARAM_INITIALIZE = 1; 117 private static final int UPDATE_PARAM_ZOOM = 2; 118 private static final int UPDATE_PARAM_PREFERENCE = 4; 119 private static final int UPDATE_PARAM_ALL = -1; 120 121 // When setCameraParametersWhenIdle() is called, we accumulate the subsets 122 // needed to be updated in mUpdateSet. 123 private int mUpdateSet; 124 125 // The brightness settings used when it is set to automatic in the system. 126 // The reason why it is set to 0.7 is just because 1.0 is too bright. 127 private static final float DEFAULT_CAMERA_BRIGHTNESS = 0.7f; 128 129 private static final int SCREEN_DELAY = 2 * 60 * 1000; 130 private static final int FOCUS_BEEP_VOLUME = 100; 131 132 private static final int ZOOM_STOPPED = 0; 133 private static final int ZOOM_START = 1; 134 private static final int ZOOM_STOPPING = 2; 135 136 private int mZoomState = ZOOM_STOPPED; 137 private boolean mSmoothZoomSupported = false; 138 private int mZoomValue; // The current zoom value. 139 private int mZoomMax; 140 private int mTargetZoomValue; 141 private ZoomPicker mZoomPicker; 142 143 private Parameters mParameters; 144 private Parameters mInitialParams; 145 146 private MyOrientationEventListener mOrientationListener; 147 // The device orientation in degrees. Default is unknown. 148 private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 149 // The orientation compensation for icons and thumbnails. 150 private int mOrientationCompensation = 0; 151 private ComboPreferences mPreferences; 152 153 private static final boolean SWITCH_CAMERA = true; 154 private static final boolean SWITCH_VIDEO = false; 155 156 private static final String sTempCropFilename = "crop-temp"; 157 158 private android.hardware.Camera mCameraDevice; 159 private ContentProviderClient mMediaProviderClient; 160 private SurfaceView mSurfaceView; 161 private SurfaceHolder mSurfaceHolder = null; 162 private ShutterButton mShutterButton; 163 private ToneGenerator mFocusToneGenerator; 164 private GestureDetector mPopupGestureDetector; 165 private SwitcherSet mSwitcher; 166 private boolean mStartPreviewFail = false; 167 168 private View mPreviewFrame; // Preview frame area. 169 private View mPreviewBorder; 170 private FocusRectangle mFocusRectangle; 171 private List<Area> mFocusArea; // focus area in driver format 172 173 private GLRootView mGLRootView; 174 175 // The last captured picture. 176 private RotateImageView mThumbnailButton; 177 178 // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. 179 private String mCropValue; 180 private Uri mSaveUri; 181 182 // GPS on-screen indicator 183 private View mGpsNoSignalView; 184 private View mGpsHasSignalView; 185 186 // Front/Back camera pciker for xlarge layout 187 private CameraPicker mCameraPicker; 188 189 /** 190 * An unpublished intent flag requesting to return as soon as capturing 191 * is completed. 192 * 193 * TODO: consider publishing by moving into MediaStore. 194 */ 195 private final static String EXTRA_QUICK_CAPTURE = 196 "android.intent.extra.quickCapture"; 197 198 // The display rotation in degrees. This is only valid when mCameraState is 199 // not PREVIEW_STOPPED. 200 private int mDisplayRotation; 201 private boolean mPausing; 202 private boolean mFirstTimeInitialized; 203 private boolean mIsImageCaptureIntent; 204 private boolean mRecordLocation; 205 206 private static final int PREVIEW_STOPPED = 0; 207 private static final int IDLE = 1; // preview is active 208 private static final int FOCUSING = 2; 209 private static final int FOCUSING_SNAP_ON_FINISH = 3; 210 private static final int FOCUS_SUCCESS = 4; 211 private static final int FOCUS_FAIL = 5; 212 private static final int SNAPSHOT_IN_PROGRESS = 6; 213 private int mCameraState = PREVIEW_STOPPED; 214 215 private ContentResolver mContentResolver; 216 private boolean mDidRegister = false; 217 218 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 219 220 private LocationManager mLocationManager = null; 221 222 private final ShutterCallback mShutterCallback = new ShutterCallback(); 223 private final PostViewPictureCallback mPostViewPictureCallback = 224 new PostViewPictureCallback(); 225 private final RawPictureCallback mRawPictureCallback = 226 new RawPictureCallback(); 227 private final AutoFocusCallback mAutoFocusCallback = 228 new AutoFocusCallback(); 229 private final ZoomListener mZoomListener = new ZoomListener(); 230 private final CameraErrorCallback mErrorCallback = new CameraErrorCallback(); 231 232 private long mFocusStartTime; 233 private long mFocusCallbackTime; 234 private long mCaptureStartTime; 235 private long mShutterCallbackTime; 236 private long mPostViewPictureCallbackTime; 237 private long mRawPictureCallbackTime; 238 private long mJpegPictureCallbackTime; 239 private long mOnResumeTime; 240 private long mPicturesRemaining; 241 private byte[] mJpegImageData; 242 243 // These latency time are for the CameraLatency test. 244 public long mAutoFocusTime; 245 public long mShutterLag; 246 public long mShutterToPictureDisplayedTime; 247 public long mPictureDisplayedToJpegCallbackTime; 248 public long mJpegCallbackFinishTime; 249 250 // Focus mode. Options are pref_camera_focusmode_entryvalues. 251 private String mFocusMode; 252 private String mSceneMode; 253 private Toast mNotSelectableToast; 254 255 private final Handler mHandler = new MainHandler(); 256 // xlarge devices use indicator wheel. Other devices use head-up display. 257 private CameraHeadUpDisplay mHeadUpDisplay; 258 private IndicatorWheel mIndicatorWheel; 259 private PreferenceGroup mPreferenceGroup; 260 261 // multiple cameras support 262 private int mNumberOfCameras; 263 private int mCameraId; 264 private int mFrontCameraId; 265 private int mBackCameraId; 266 267 private boolean mQuickCapture; 268 269 /** 270 * This Handler is used to post message back onto the main thread of the 271 * application 272 */ 273 private class MainHandler extends Handler { 274 @Override 275 public void handleMessage(Message msg) { 276 switch (msg.what) { 277 case RESTART_PREVIEW: { 278 restartPreview(); 279 if (mJpegPictureCallbackTime != 0) { 280 long now = System.currentTimeMillis(); 281 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 282 Log.v(TAG, "mJpegCallbackFinishTime = " 283 + mJpegCallbackFinishTime + "ms"); 284 mJpegPictureCallbackTime = 0; 285 } 286 break; 287 } 288 289 case CLEAR_SCREEN_DELAY: { 290 getWindow().clearFlags( 291 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 292 break; 293 } 294 295 case FIRST_TIME_INIT: { 296 initializeFirstTime(); 297 break; 298 } 299 300 case SET_CAMERA_PARAMETERS_WHEN_IDLE: { 301 setCameraParametersWhenIdle(0); 302 break; 303 } 304 305 case CHECK_DISPLAY_ROTATION: { 306 // Restart the preview if display rotation has changed. 307 // Sometimes this happens when the device is held upside 308 // down and camera app is opened. Rotation animation will 309 // take some time and the rotation value we have got may be 310 // wrong. Framework does not have a callback for this now. 311 if (Util.getDisplayRotation(Camera.this) != mDisplayRotation 312 && isCameraIdle()) { 313 restartPreview(); 314 } 315 if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) { 316 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 317 } 318 break; 319 } 320 321 case CANCEL_AUTOFOCUS: { 322 cancelAutoFocus(); 323 break; 324 } 325 } 326 } 327 } 328 329 private void resetExposureCompensation() { 330 String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, 331 CameraSettings.EXPOSURE_DEFAULT_VALUE); 332 if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { 333 Editor editor = mPreferences.edit(); 334 editor.putString(CameraSettings.KEY_EXPOSURE, "0"); 335 editor.apply(); 336 if (mHeadUpDisplay != null) { 337 mHeadUpDisplay.reloadPreferences(); 338 } 339 if (mIndicatorWheel != null) { 340 mIndicatorWheel.reloadPreferences(); 341 } 342 } 343 } 344 345 private void keepMediaProviderInstance() { 346 // We want to keep a reference to MediaProvider in camera's lifecycle. 347 // TODO: Utilize mMediaProviderClient instance to replace 348 // ContentResolver calls. 349 if (mMediaProviderClient == null) { 350 mMediaProviderClient = getContentResolver() 351 .acquireContentProviderClient(MediaStore.AUTHORITY); 352 } 353 } 354 355 // Snapshots can only be taken after this is called. It should be called 356 // once only. We could have done these things in onCreate() but we want to 357 // make preview screen appear as soon as possible. 358 private void initializeFirstTime() { 359 if (mFirstTimeInitialized) return; 360 361 // Create orientation listenter. This should be done first because it 362 // takes some time to get first orientation. 363 mOrientationListener = new MyOrientationEventListener(Camera.this); 364 mOrientationListener.enable(); 365 366 // Initialize location sevice. 367 mLocationManager = (LocationManager) 368 getSystemService(Context.LOCATION_SERVICE); 369 mRecordLocation = RecordLocationPreference.get( 370 mPreferences, getContentResolver()); 371 initGpsOnScreenIndicator(); 372 if (mRecordLocation) startReceivingLocationUpdates(); 373 374 keepMediaProviderInstance(); 375 checkStorage(); 376 377 // Initialize last picture button. 378 mContentResolver = getContentResolver(); 379 if (!mIsImageCaptureIntent) { 380 findViewById(R.id.camera_switch).setOnClickListener(this); 381 initThumbnailButton(); 382 } 383 384 // Initialize shutter button. 385 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 386 mShutterButton.setOnShutterButtonListener(this); 387 mShutterButton.setVisibility(View.VISIBLE); 388 389 // Initialize focus UI. 390 mPreviewFrame = findViewById(R.id.camera_preview); 391 mPreviewFrame.setOnTouchListener(this); 392 mPreviewBorder = (View) findViewById(R.id.preview_border); 393 // Set the length of focus rectangle according to preview frame size. 394 int len = Math.min(mPreviewFrame.getWidth(), mPreviewFrame.getHeight()) / 4; 395 ViewGroup.LayoutParams layout = mFocusRectangle.getLayoutParams(); 396 layout.width = len; 397 layout.height = len; 398 399 initializeScreenBrightness(); 400 installIntentFilter(); 401 initializeFocusTone(); 402 initializeZoom(); 403 // xlarge devices use indicator wheel. Other devices use head-up display. 404 if (mIndicatorWheel == null) { 405 mHeadUpDisplay = new CameraHeadUpDisplay(this); 406 mHeadUpDisplay.setListener(new MyHeadUpDisplayListener()); 407 initializeHeadUpDisplay(); 408 } 409 mFirstTimeInitialized = true; 410 changeHeadUpDisplayState(); 411 addIdleHandler(); 412 } 413 414 private void addIdleHandler() { 415 MessageQueue queue = Looper.myQueue(); 416 queue.addIdleHandler(new MessageQueue.IdleHandler() { 417 public boolean queueIdle() { 418 Storage.ensureOSXCompatible(); 419 return false; 420 } 421 }); 422 } 423 424 private void initThumbnailButton() { 425 mThumbnailButton = 426 (RotateImageView) findViewById(R.id.review_thumbnail); 427 if (mThumbnailButton != null) { 428 mThumbnailButton.setOnClickListener(this); 429 mThumbnailButton.loadData(LAST_THUMB_PATH); 430 updateThumbnailButton(); 431 } 432 } 433 434 private void updateThumbnailButton() { 435 if (mThumbnailButton == null) return; 436 // Update last image if URI is invalid and the storage is ready. 437 if (!mThumbnailButton.isUriValid() && mPicturesRemaining >= 0) { 438 Storage.Thumbnail thumbnail = 439 Storage.getLastImageThumbnail(mContentResolver); 440 if (thumbnail != null) { 441 mThumbnailButton.setData(thumbnail.getOriginalUri(), 442 thumbnail.getBitmap(mContentResolver)); 443 } else { 444 mThumbnailButton.setData(null, null); 445 } 446 } 447 mThumbnailButton.setVisibility( 448 (mThumbnailButton.getUri() != null) ? View.VISIBLE : View.GONE); 449 } 450 451 // If the activity is paused and resumed, this method will be called in 452 // onResume. 453 private void initializeSecondTime() { 454 // Start orientation listener as soon as possible because it takes 455 // some time to get first orientation. 456 mOrientationListener.enable(); 457 458 // Start location update if needed. 459 mRecordLocation = RecordLocationPreference.get( 460 mPreferences, getContentResolver()); 461 if (mRecordLocation) startReceivingLocationUpdates(); 462 463 installIntentFilter(); 464 initializeFocusTone(); 465 initializeZoom(); 466 changeHeadUpDisplayState(); 467 468 keepMediaProviderInstance(); 469 checkStorage(); 470 471 if (!mIsImageCaptureIntent) { 472 updateThumbnailButton(); 473 } 474 } 475 476 private void initializeZoom() { 477 if (!mParameters.isZoomSupported()) return; 478 479 mZoomMax = mParameters.getMaxZoom(); 480 mSmoothZoomSupported = mParameters.isSmoothZoomSupported(); 481 if (mZoomPicker != null) { 482 mZoomPicker.setZoomRatios(getZoomRatios()); 483 mZoomPicker.setZoomIndex(mParameters.getZoom()); 484 mZoomPicker.setSmoothZoomSupported(mSmoothZoomSupported); 485 mZoomPicker.setOnZoomChangeListener( 486 new ZoomPicker.OnZoomChangedListener() { 487 // only for immediate zoom 488 public void onZoomValueChanged(int index) { 489 Camera.this.onZoomValueChanged(index); 490 } 491 492 // only for smooth zoom 493 public void onZoomStateChanged(int state) { 494 if (mPausing) return; 495 496 Log.v(TAG, "zoom picker state=" + state); 497 if (state == mZoomPicker.ZOOM_IN) { 498 Camera.this.onZoomValueChanged(mZoomMax); 499 } else if (state == mZoomPicker.ZOOM_OUT){ 500 Camera.this.onZoomValueChanged(0); 501 } else { 502 mTargetZoomValue = -1; 503 if (mZoomState == ZOOM_START) { 504 mZoomState = ZOOM_STOPPING; 505 mCameraDevice.stopSmoothZoom(); 506 } 507 } 508 } 509 }); 510 } 511 512 mCameraDevice.setZoomChangeListener(mZoomListener); 513 } 514 515 private void onZoomValueChanged(int index) { 516 // Not useful to change zoom value when the activity is paused. 517 if (mPausing) return; 518 519 if (mSmoothZoomSupported) { 520 if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { 521 mTargetZoomValue = index; 522 if (mZoomState == ZOOM_START) { 523 mZoomState = ZOOM_STOPPING; 524 mCameraDevice.stopSmoothZoom(); 525 } 526 } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { 527 mTargetZoomValue = index; 528 mCameraDevice.startSmoothZoom(index); 529 mZoomState = ZOOM_START; 530 } 531 } else { 532 mZoomValue = index; 533 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 534 } 535 } 536 537 private float[] getZoomRatios() { 538 if(!mParameters.isZoomSupported()) return null; 539 List<Integer> zoomRatios = mParameters.getZoomRatios(); 540 float result[] = new float[zoomRatios.size()]; 541 for (int i = 0, n = result.length; i < n; ++i) { 542 result[i] = (float) zoomRatios.get(i) / 100f; 543 } 544 return result; 545 } 546 547 private class PopupGestureListener 548 extends GestureDetector.SimpleOnGestureListener { 549 public boolean onDown(MotionEvent e) { 550 // Check if the popup window is visible. 551 View popup = mIndicatorWheel.getActivePopupWindow(); 552 if (popup == null) return false; 553 554 555 // Let popup window, indicator wheel or preview frame handle the 556 // event by themselves. Dismiss the popup window if users touch on 557 // other areas. 558 if (!Util.pointInView(e.getX(), e.getY(), popup) 559 && !Util.pointInView(e.getX(), e.getY(), mIndicatorWheel) 560 && !Util.pointInView(e.getX(), e.getY(), mPreviewFrame)) { 561 mIndicatorWheel.dismissSettingPopup(); 562 // Let event fall through. 563 } 564 return false; 565 } 566 } 567 568 @Override 569 public boolean dispatchTouchEvent(MotionEvent m) { 570 // Check if the popup window should be dismissed first. 571 if (mPopupGestureDetector != null && mPopupGestureDetector.onTouchEvent(m)) { 572 return true; 573 } 574 575 return super.dispatchTouchEvent(m); 576 } 577 578 LocationListener [] mLocationListeners = new LocationListener[] { 579 new LocationListener(LocationManager.GPS_PROVIDER), 580 new LocationListener(LocationManager.NETWORK_PROVIDER) 581 }; 582 583 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 584 @Override 585 public void onReceive(Context context, Intent intent) { 586 String action = intent.getAction(); 587 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 588 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 589 || action.equals(Intent.ACTION_MEDIA_CHECKING)) { 590 checkStorage(); 591 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 592 checkStorage(); 593 if (!mIsImageCaptureIntent) { 594 updateThumbnailButton(); 595 } 596 } 597 } 598 }; 599 600 private void initializeCameraPicker() { 601 mCameraPicker = (CameraPicker) findViewById(R.id.camera_picker); 602 if (mCameraPicker != null) { 603 mCameraPicker.setImageResource(R.drawable.camera_toggle); 604 ListPreference pref = mPreferenceGroup.findPreference( 605 CameraSettings.KEY_CAMERA_ID); 606 if (pref != null) { 607 mCameraPicker.initialize(pref); 608 mCameraPicker.setListener(new MyCameraPickerListener()); 609 } 610 } 611 } 612 613 private void initGpsOnScreenIndicator() { 614 mGpsNoSignalView = findViewById(R.id.onscreen_gps_indicator_no_signal); 615 mGpsHasSignalView = findViewById(R.id.onscreen_gps_indicator_on); 616 } 617 618 private void showGpsOnScreenIndicator(boolean hasSignal) { 619 if (hasSignal) { 620 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.INVISIBLE); 621 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.VISIBLE); 622 } else { 623 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.VISIBLE); 624 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.INVISIBLE); 625 } 626 } 627 628 private void hideGpsOnScreenIndicator() { 629 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.INVISIBLE); 630 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.INVISIBLE); 631 } 632 633 private class LocationListener 634 implements android.location.LocationListener { 635 Location mLastLocation; 636 boolean mValid = false; 637 String mProvider; 638 639 public LocationListener(String provider) { 640 mProvider = provider; 641 mLastLocation = new Location(mProvider); 642 } 643 644 public void onLocationChanged(Location newLocation) { 645 if (newLocation.getLatitude() == 0.0 646 && newLocation.getLongitude() == 0.0) { 647 // Hack to filter out 0.0,0.0 locations 648 return; 649 } 650 // If GPS is available before start camera, we won't get status 651 // update so update GPS indicator when we receive data. 652 if (mRecordLocation 653 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 654 if (mHeadUpDisplay != null) { 655 mHeadUpDisplay.setGpsHasSignal(true); 656 } 657 showGpsOnScreenIndicator(true); 658 } 659 if (!mValid) { 660 Log.d(TAG, "Got first location."); 661 } 662 mLastLocation.set(newLocation); 663 mValid = true; 664 } 665 666 public void onProviderEnabled(String provider) { 667 } 668 669 public void onProviderDisabled(String provider) { 670 mValid = false; 671 } 672 673 public void onStatusChanged( 674 String provider, int status, Bundle extras) { 675 switch(status) { 676 case LocationProvider.OUT_OF_SERVICE: 677 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 678 mValid = false; 679 if (mRecordLocation && 680 LocationManager.GPS_PROVIDER.equals(provider)) { 681 if (mHeadUpDisplay != null) { 682 mHeadUpDisplay.setGpsHasSignal(false); 683 } 684 showGpsOnScreenIndicator(false); 685 } 686 break; 687 } 688 } 689 } 690 691 public Location current() { 692 return mValid ? mLastLocation : null; 693 } 694 } 695 696 private final class ShutterCallback 697 implements android.hardware.Camera.ShutterCallback { 698 public void onShutter() { 699 mShutterCallbackTime = System.currentTimeMillis(); 700 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 701 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 702 updateFocusUI(); 703 } 704 } 705 706 private final class PostViewPictureCallback implements PictureCallback { 707 public void onPictureTaken( 708 byte [] data, android.hardware.Camera camera) { 709 mPostViewPictureCallbackTime = System.currentTimeMillis(); 710 Log.v(TAG, "mShutterToPostViewCallbackTime = " 711 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 712 + "ms"); 713 } 714 } 715 716 private final class RawPictureCallback implements PictureCallback { 717 public void onPictureTaken( 718 byte [] rawData, android.hardware.Camera camera) { 719 mRawPictureCallbackTime = System.currentTimeMillis(); 720 Log.v(TAG, "mShutterToRawCallbackTime = " 721 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 722 } 723 } 724 725 private final class JpegPictureCallback implements PictureCallback { 726 Location mLocation; 727 728 public JpegPictureCallback(Location loc) { 729 mLocation = loc; 730 } 731 732 public void onPictureTaken( 733 final byte [] jpegData, final android.hardware.Camera camera) { 734 if (mPausing) { 735 return; 736 } 737 738 mJpegPictureCallbackTime = System.currentTimeMillis(); 739 // If postview callback has arrived, the captured image is displayed 740 // in postview callback. If not, the captured image is displayed in 741 // raw picture callback. 742 if (mPostViewPictureCallbackTime != 0) { 743 mShutterToPictureDisplayedTime = 744 mPostViewPictureCallbackTime - mShutterCallbackTime; 745 mPictureDisplayedToJpegCallbackTime = 746 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 747 } else { 748 mShutterToPictureDisplayedTime = 749 mRawPictureCallbackTime - mShutterCallbackTime; 750 mPictureDisplayedToJpegCallbackTime = 751 mJpegPictureCallbackTime - mRawPictureCallbackTime; 752 } 753 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 754 + mPictureDisplayedToJpegCallbackTime + "ms"); 755 756 if (!mIsImageCaptureIntent) { 757 enableCameraControls(true); 758 759 // We want to show the taken picture for a while, so we wait 760 // for at least 1.2 second before restarting the preview. 761 long delay = 1200 - mPictureDisplayedToJpegCallbackTime; 762 if (delay < 0) { 763 restartPreview(); 764 } else { 765 mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay); 766 } 767 } 768 storeImage(jpegData, camera, mLocation); 769 770 // Check this in advance of each shot so we don't add to shutter 771 // latency. It's true that someone else could write to the SD card in 772 // the mean time and fill it, but that could have happened between the 773 // shutter press and saving the JPEG too. 774 checkStorage(); 775 776 if (!mHandler.hasMessages(RESTART_PREVIEW)) { 777 long now = System.currentTimeMillis(); 778 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 779 Log.v(TAG, "mJpegCallbackFinishTime = " 780 + mJpegCallbackFinishTime + "ms"); 781 mJpegPictureCallbackTime = 0; 782 } 783 } 784 } 785 786 private final class AutoFocusCallback 787 implements android.hardware.Camera.AutoFocusCallback { 788 public void onAutoFocus( 789 boolean focused, android.hardware.Camera camera) { 790 mFocusCallbackTime = System.currentTimeMillis(); 791 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 792 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 793 if (mCameraState == FOCUSING_SNAP_ON_FINISH) { 794 // Take the picture no matter focus succeeds or fails. No need 795 // to play the AF sound if we're about to play the shutter 796 // sound. 797 if (focused) { 798 mCameraState = FOCUS_SUCCESS; 799 } else { 800 mCameraState = FOCUS_FAIL; 801 } 802 updateFocusUI(); 803 capture(); 804 } else if (mCameraState == FOCUSING) { 805 // This happens when (1) user is half-pressing the focus key or 806 // (2) touch focus is triggered. Play the focus tone. Do not 807 // take the picture now. 808 if (focused) { 809 mCameraState = FOCUS_SUCCESS; 810 if (mFocusToneGenerator != null) { 811 mFocusToneGenerator.startTone(ToneGenerator.TONE_PROP_BEEP2); 812 } 813 } else { 814 mCameraState = FOCUS_FAIL; 815 } 816 updateFocusUI(); 817 enableCameraControls(true); 818 // If this is triggered by touch focus, cancel focus after a 819 // while. 820 if (mFocusArea != null) { 821 mHandler.sendEmptyMessageDelayed(CANCEL_AUTOFOCUS, 3000); 822 } 823 } else if (mCameraState == IDLE) { 824 // User has released the focus key before focus completes. 825 // Do nothing. 826 } 827 828 } 829 } 830 831 private final class ZoomListener 832 implements android.hardware.Camera.OnZoomChangeListener { 833 public void onZoomChange( 834 int value, boolean stopped, android.hardware.Camera camera) { 835 Log.v(TAG, "Zoom changed: value=" + value + ". stopped="+ stopped); 836 mZoomValue = value; 837 838 // Update the UI when we get zoom value. 839 if (mZoomPicker != null) mZoomPicker.setZoomIndex(value); 840 841 // Keep mParameters up to date. We do not getParameter again in 842 // takePicture. If we do not do this, wrong zoom value will be set. 843 mParameters.setZoom(value); 844 845 if (stopped && mZoomState != ZOOM_STOPPED) { 846 if (mTargetZoomValue != -1 && value != mTargetZoomValue) { 847 mCameraDevice.startSmoothZoom(mTargetZoomValue); 848 mZoomState = ZOOM_START; 849 } else { 850 mZoomState = ZOOM_STOPPED; 851 } 852 } 853 } 854 } 855 856 public void storeImage(final byte[] data, 857 android.hardware.Camera camera, Location loc) { 858 if (!mIsImageCaptureIntent) { 859 long dateTaken = System.currentTimeMillis(); 860 String title = createName(dateTaken); 861 862 Storage.Thumbnail thumbnail = Storage.addImage( 863 mContentResolver, title, dateTaken, loc, data); 864 865 if (thumbnail != null && mThumbnailButton != null) { 866 mThumbnailButton.setData(thumbnail.getOriginalUri(), 867 thumbnail.getBitmap(mContentResolver)); 868 mThumbnailButton.setVisibility(View.VISIBLE); 869 870 sendBroadcast(new Intent("com.android.camera.NEW_PICTURE", 871 thumbnail.getOriginalUri())); 872 } 873 } else { 874 mJpegImageData = data; 875 if (!mQuickCapture) { 876 showPostCaptureAlert(); 877 } else { 878 doAttach(); 879 } 880 } 881 } 882 883 private void capture() { 884 // If we are already in the middle of taking a snapshot then ignore. 885 if (mPausing || mCameraState == SNAPSHOT_IN_PROGRESS || mCameraDevice == null) { 886 return; 887 } 888 mCaptureStartTime = System.currentTimeMillis(); 889 mPostViewPictureCallbackTime = 0; 890 enableCameraControls(false); 891 mJpegImageData = null; 892 893 // See android.hardware.Camera.Parameters.setRotation for 894 // documentation. 895 int rotation = 0; 896 if (mOrientation != OrientationEventListener.ORIENTATION_UNKNOWN) { 897 CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; 898 if (info.facing == CameraInfo.CAMERA_FACING_FRONT) { 899 rotation = (info.orientation - mOrientation + 360) % 360; 900 } else { // back-facing camera 901 rotation = (info.orientation + mOrientation) % 360; 902 } 903 } 904 mParameters.setRotation(rotation); 905 906 // Clear previous GPS location from the parameters. 907 mParameters.removeGpsData(); 908 909 // We always encode GpsTimeStamp 910 mParameters.setGpsTimestamp(System.currentTimeMillis() / 1000); 911 912 // Set GPS location. 913 Location loc = mRecordLocation ? getCurrentLocation() : null; 914 if (loc != null) { 915 double lat = loc.getLatitude(); 916 double lon = loc.getLongitude(); 917 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 918 919 if (hasLatLon) { 920 Log.d(TAG, "Set gps location"); 921 mParameters.setGpsLatitude(lat); 922 mParameters.setGpsLongitude(lon); 923 mParameters.setGpsProcessingMethod(loc.getProvider().toUpperCase()); 924 if (loc.hasAltitude()) { 925 mParameters.setGpsAltitude(loc.getAltitude()); 926 } else { 927 // for NETWORK_PROVIDER location provider, we may have 928 // no altitude information, but the driver needs it, so 929 // we fake one. 930 mParameters.setGpsAltitude(0); 931 } 932 if (loc.getTime() != 0) { 933 // Location.getTime() is UTC in milliseconds. 934 // gps-timestamp is UTC in seconds. 935 long utcTimeSeconds = loc.getTime() / 1000; 936 mParameters.setGpsTimestamp(utcTimeSeconds); 937 } 938 } else { 939 loc = null; 940 } 941 } 942 943 mCameraDevice.setParameters(mParameters); 944 945 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 946 mPostViewPictureCallback, new JpegPictureCallback(loc)); 947 mCameraState = SNAPSHOT_IN_PROGRESS; 948 mHandler.removeMessages(CANCEL_AUTOFOCUS); 949 } 950 951 private boolean saveDataToFile(String filePath, byte[] data) { 952 FileOutputStream f = null; 953 try { 954 f = new FileOutputStream(filePath); 955 f.write(data); 956 } catch (IOException e) { 957 return false; 958 } finally { 959 Util.closeSilently(f); 960 } 961 return true; 962 } 963 964 private String createName(long dateTaken) { 965 Date date = new Date(dateTaken); 966 SimpleDateFormat dateFormat = new SimpleDateFormat( 967 getString(R.string.image_file_name_format)); 968 969 return dateFormat.format(date); 970 } 971 972 @Override 973 public void onCreate(Bundle icicle) { 974 super.onCreate(icicle); 975 976 mIsImageCaptureIntent = isImageCaptureIntent(); 977 if (mIsImageCaptureIntent) { 978 setContentView(R.layout.camera_attach); 979 } else { 980 setContentView(R.layout.camera); 981 } 982 mSurfaceView = (SurfaceView) findViewById(R.id.camera_preview); 983 mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); 984 985 mPreferences = new ComboPreferences(this); 986 CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal()); 987 988 mCameraId = CameraSettings.readPreferredCameraId(mPreferences); 989 990 // Testing purpose. Launch a specific camera through the intent extras. 991 int intentCameraId = Util.getCameraFacingIntentExtras(this); 992 if (intentCameraId != -1) { 993 mCameraId = intentCameraId; 994 } 995 996 mPreferences.setLocalId(this, mCameraId); 997 CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); 998 999 mNumberOfCameras = CameraHolder.instance().getNumberOfCameras(); 1000 mQuickCapture = getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false); 1001 1002 // we need to reset exposure for the preview 1003 resetExposureCompensation(); 1004 /* 1005 * To reduce startup time, we start the preview in another thread. 1006 * We make sure the preview is started at the end of onCreate. 1007 */ 1008 Thread startPreviewThread = new Thread(new Runnable() { 1009 public void run() { 1010 try { 1011 mStartPreviewFail = false; 1012 startPreview(); 1013 } catch (CameraHardwareException e) { 1014 // In eng build, we throw the exception so that test tool 1015 // can detect it and report it 1016 if ("eng".equals(Build.TYPE)) { 1017 throw new RuntimeException(e); 1018 } 1019 mStartPreviewFail = true; 1020 } 1021 } 1022 }); 1023 startPreviewThread.start(); 1024 1025 // don't set mSurfaceHolder here. We have it set ONLY within 1026 // surfaceChanged / surfaceDestroyed, other parts of the code 1027 // assume that when it is set, the surface is also set. 1028 SurfaceHolder holder = mSurfaceView.getHolder(); 1029 holder.addCallback(this); 1030 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 1031 1032 if (mIsImageCaptureIntent) { 1033 setupCaptureParams(); 1034 1035 View reviewControl = findViewById(R.id.review_control); 1036 reviewControl.setVisibility(View.VISIBLE); 1037 reviewControl.findViewById(R.id.btn_cancel).setOnClickListener(this); 1038 reviewControl.findViewById(R.id.btn_retake).setOnClickListener(this); 1039 reviewControl.findViewById(R.id.btn_done).setOnClickListener(this); 1040 } else { 1041 mSwitcher = (SwitcherSet) findViewById(R.id.camera_switch); 1042 mSwitcher.setVisibility(View.VISIBLE); 1043 mSwitcher.setOnSwitchListener(this); 1044 } 1045 1046 // Make sure preview is started. 1047 try { 1048 startPreviewThread.join(); 1049 if (mStartPreviewFail) { 1050 showCameraErrorAndFinish(); 1051 return; 1052 } 1053 } catch (InterruptedException ex) { 1054 // ignore 1055 } 1056 1057 mBackCameraId = CameraHolder.instance().getBackCameraId(); 1058 mFrontCameraId = CameraHolder.instance().getFrontCameraId(); 1059 1060 // Do this after starting preview because it depends on camera 1061 // parameters. 1062 initializeIndicatorWheel(); 1063 initializeCameraPicker(); 1064 1065 mZoomPicker = (ZoomPicker) findViewById(R.id.zoom_picker); 1066 if (mZoomPicker != null) mZoomPicker.setEnabled(true); // disabled initially in xml 1067 } 1068 1069 private void changeHeadUpDisplayState() { 1070 if (mHeadUpDisplay == null) return; 1071 // If the camera resumes behind the lock screen, the orientation 1072 // will be portrait. That causes OOM when we try to allocation GPU 1073 // memory for the GLSurfaceView again when the orientation changes. So, 1074 // we delayed initialization of HeadUpDisplay until the orientation 1075 // becomes landscape. 1076 Configuration config = getResources().getConfiguration(); 1077 if (config.orientation == Configuration.ORIENTATION_LANDSCAPE 1078 && !mPausing && mFirstTimeInitialized) { 1079 if (mGLRootView == null) attachHeadUpDisplay(); 1080 } else if (mGLRootView != null) { 1081 detachHeadUpDisplay(); 1082 } 1083 } 1084 1085 private void overrideCameraSettings(final String flashMode, 1086 final String whiteBalance, final String focusMode) { 1087 if (mHeadUpDisplay != null) { 1088 mHeadUpDisplay.overrideSettings( 1089 CameraSettings.KEY_FLASH_MODE, flashMode, 1090 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 1091 CameraSettings.KEY_FOCUS_MODE, focusMode); 1092 } 1093 if (mIndicatorWheel != null) { 1094 mIndicatorWheel.overrideSettings( 1095 CameraSettings.KEY_FLASH_MODE, flashMode, 1096 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 1097 CameraSettings.KEY_FOCUS_MODE, focusMode); 1098 } 1099 } 1100 1101 private void updateSceneModeUI() { 1102 // If scene mode is set, we cannot set flash mode, white balance, and 1103 // focus mode, instead, we read it from driver 1104 if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1105 overrideCameraSettings(mParameters.getFlashMode(), 1106 mParameters.getWhiteBalance(), mParameters.getFocusMode()); 1107 } else { 1108 overrideCameraSettings(null, null, null); 1109 } 1110 } 1111 1112 private void loadCameraPreferences() { 1113 CameraSettings settings = new CameraSettings(this, mInitialParams, 1114 mCameraId, CameraHolder.instance().getCameraInfo()); 1115 mPreferenceGroup = settings.getPreferenceGroup(R.xml.camera_preferences); 1116 } 1117 1118 private void initializeIndicatorWheel() { 1119 mIndicatorWheel = (IndicatorWheel) findViewById(R.id.indicator_wheel); 1120 if (mIndicatorWheel == null) return; 1121 loadCameraPreferences(); 1122 1123 final String[] SETTING_KEYS = { 1124 CameraSettings.KEY_FLASH_MODE, 1125 CameraSettings.KEY_WHITE_BALANCE, 1126 CameraSettings.KEY_COLOR_EFFECT, 1127 CameraSettings.KEY_SCENE_MODE}; 1128 final String[] OTHER_SETTING_KEYS = { 1129 CameraSettings.KEY_RECORD_LOCATION, 1130 CameraSettings.KEY_FOCUS_MODE, 1131 CameraSettings.KEY_EXPOSURE, 1132 CameraSettings.KEY_PICTURE_SIZE, 1133 CameraSettings.KEY_JPEG_QUALITY}; 1134 mIndicatorWheel.initialize(this, mPreferenceGroup, SETTING_KEYS, 1135 OTHER_SETTING_KEYS); 1136 mIndicatorWheel.setListener(new MyIndicatorWheelListener()); 1137 mPopupGestureDetector = new GestureDetector(this, 1138 new PopupGestureListener()); 1139 updateSceneModeUI(); 1140 } 1141 1142 private void initializeHeadUpDisplay() { 1143 if (mHeadUpDisplay == null) return; 1144 loadCameraPreferences(); 1145 1146 // If we have zoom picker, do not show zoom control on head-up display. 1147 float[] zoomRatios = null; 1148 if (mZoomPicker == null) zoomRatios = getZoomRatios(); 1149 mHeadUpDisplay.initialize(this, mPreferenceGroup, 1150 zoomRatios, mOrientationCompensation); 1151 if (mZoomPicker == null && mParameters.isZoomSupported()) { 1152 mHeadUpDisplay.setZoomListener(new ZoomControllerListener() { 1153 public void onZoomChanged( 1154 int index, float ratio, boolean isMoving) { 1155 onZoomValueChanged(index); 1156 } 1157 }); 1158 } 1159 updateSceneModeUI(); 1160 } 1161 1162 private void attachHeadUpDisplay() { 1163 mHeadUpDisplay.setOrientation(mOrientationCompensation); 1164 if (mParameters.isZoomSupported()) { 1165 mHeadUpDisplay.setZoomIndex(mZoomValue); 1166 } 1167 ViewGroup frame = (ViewGroup) findViewById(R.id.frame); 1168 mGLRootView = new GLRootView(this); 1169 mGLRootView.setContentPane(mHeadUpDisplay); 1170 frame.addView(mGLRootView); 1171 } 1172 1173 private void detachHeadUpDisplay() { 1174 mHeadUpDisplay.setGpsHasSignal(false); 1175 mHeadUpDisplay.collapse(); 1176 ((ViewGroup) mGLRootView.getParent()).removeView(mGLRootView); 1177 mGLRootView = null; 1178 } 1179 1180 private boolean collapseCameraControls() { 1181 if (mHeadUpDisplay != null && mHeadUpDisplay.collapse()) { 1182 return true; 1183 } 1184 if (mIndicatorWheel != null && mIndicatorWheel.dismissSettingPopup()) { 1185 return true; 1186 } 1187 return false; 1188 } 1189 1190 private void enableCameraControls(boolean enable) { 1191 if (mHeadUpDisplay != null) mHeadUpDisplay.setEnabled(enable); 1192 if (mIndicatorWheel != null) mIndicatorWheel.setEnabled(enable); 1193 if (mCameraPicker != null) mCameraPicker.setEnabled(enable); 1194 if (mZoomPicker != null) mZoomPicker.setEnabled(enable); 1195 if (mSwitcher != null) mSwitcher.setEnabled(enable); 1196 } 1197 1198 public static int roundOrientation(int orientation) { 1199 return ((orientation + 45) / 90 * 90) % 360; 1200 } 1201 1202 private class MyOrientationEventListener 1203 extends OrientationEventListener { 1204 public MyOrientationEventListener(Context context) { 1205 super(context); 1206 } 1207 1208 @Override 1209 public void onOrientationChanged(int orientation) { 1210 // We keep the last known orientation. So if the user first orient 1211 // the camera then point the camera to floor or sky, we still have 1212 // the correct orientation. 1213 if (orientation == ORIENTATION_UNKNOWN) return; 1214 mOrientation = roundOrientation(orientation); 1215 // When the screen is unlocked, display rotation may change. Always 1216 // calculate the up-to-date orientationCompensation. 1217 int orientationCompensation = mOrientation 1218 + Util.getDisplayRotation(Camera.this); 1219 if (mOrientationCompensation != orientationCompensation) { 1220 mOrientationCompensation = orientationCompensation; 1221 if (!mIsImageCaptureIntent) { 1222 setOrientationIndicator(mOrientationCompensation); 1223 } 1224 if (mHeadUpDisplay != null) { 1225 mHeadUpDisplay.setOrientation(mOrientationCompensation); 1226 } 1227 } 1228 } 1229 } 1230 1231 private void setOrientationIndicator(int degree) { 1232 RotateImageView icon = (RotateImageView) findViewById( 1233 R.id.review_thumbnail); 1234 if (icon != null) icon.setDegree(degree); 1235 1236 icon = (RotateImageView) findViewById(R.id.camera_switch_icon); 1237 if (icon != null) icon.setDegree(degree); 1238 icon = (RotateImageView) findViewById(R.id.video_switch_icon); 1239 if (icon != null) icon.setDegree(degree); 1240 } 1241 1242 @Override 1243 public void onStart() { 1244 super.onStart(); 1245 if (!mIsImageCaptureIntent) { 1246 mSwitcher.setSwitch(SWITCH_CAMERA); 1247 } 1248 } 1249 1250 @Override 1251 public void onStop() { 1252 super.onStop(); 1253 if (mMediaProviderClient != null) { 1254 mMediaProviderClient.release(); 1255 mMediaProviderClient = null; 1256 } 1257 } 1258 1259 private void checkStorage() { 1260 mPicturesRemaining = Storage.getAvailableSpace(); 1261 if (mPicturesRemaining > 0) { 1262 mPicturesRemaining /= 1500000; 1263 } 1264 updateStorageHint(); 1265 } 1266 1267 public void onClick(View v) { 1268 switch (v.getId()) { 1269 case R.id.btn_retake: 1270 hidePostCaptureAlert(); 1271 restartPreview(); 1272 break; 1273 case R.id.review_thumbnail: 1274 if (isCameraIdle()) { 1275 viewImage(mThumbnailButton); 1276 } 1277 break; 1278 case R.id.btn_done: 1279 doAttach(); 1280 break; 1281 case R.id.btn_cancel: 1282 doCancel(); 1283 break; 1284 case R.id.btn_gallery: 1285 gotoGallery(); 1286 break; 1287 } 1288 } 1289 1290 private void doAttach() { 1291 if (mPausing) { 1292 return; 1293 } 1294 1295 byte[] data = mJpegImageData; 1296 1297 if (mCropValue == null) { 1298 // First handle the no crop case -- just return the value. If the 1299 // caller specifies a "save uri" then write the data to it's 1300 // stream. Otherwise, pass back a scaled down version of the bitmap 1301 // directly in the extras. 1302 if (mSaveUri != null) { 1303 OutputStream outputStream = null; 1304 try { 1305 outputStream = mContentResolver.openOutputStream(mSaveUri); 1306 outputStream.write(data); 1307 outputStream.close(); 1308 1309 setResultEx(RESULT_OK); 1310 finish(); 1311 } catch (IOException ex) { 1312 // ignore exception 1313 } finally { 1314 Util.closeSilently(outputStream); 1315 } 1316 } else { 1317 int orientation = Exif.getOrientation(data); 1318 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1319 bitmap = Util.rotate(bitmap, orientation); 1320 setResultEx(RESULT_OK, 1321 new Intent("inline-data").putExtra("data", bitmap)); 1322 finish(); 1323 } 1324 } else { 1325 // Save the image to a temp file and invoke the cropper 1326 Uri tempUri = null; 1327 FileOutputStream tempStream = null; 1328 try { 1329 File path = getFileStreamPath(sTempCropFilename); 1330 path.delete(); 1331 tempStream = openFileOutput(sTempCropFilename, 0); 1332 tempStream.write(data); 1333 tempStream.close(); 1334 tempUri = Uri.fromFile(path); 1335 } catch (FileNotFoundException ex) { 1336 setResultEx(Activity.RESULT_CANCELED); 1337 finish(); 1338 return; 1339 } catch (IOException ex) { 1340 setResultEx(Activity.RESULT_CANCELED); 1341 finish(); 1342 return; 1343 } finally { 1344 Util.closeSilently(tempStream); 1345 } 1346 1347 Bundle newExtras = new Bundle(); 1348 if (mCropValue.equals("circle")) { 1349 newExtras.putString("circleCrop", "true"); 1350 } 1351 if (mSaveUri != null) { 1352 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1353 } else { 1354 newExtras.putBoolean("return-data", true); 1355 } 1356 1357 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1358 1359 cropIntent.setData(tempUri); 1360 cropIntent.putExtras(newExtras); 1361 1362 startActivityForResult(cropIntent, CROP_MSG); 1363 } 1364 } 1365 1366 private void doCancel() { 1367 setResultEx(RESULT_CANCELED, new Intent()); 1368 finish(); 1369 } 1370 1371 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1372 if (mPausing) { 1373 return; 1374 } 1375 switch (button.getId()) { 1376 case R.id.shutter_button: 1377 doFocus(pressed); 1378 break; 1379 } 1380 } 1381 1382 public void onShutterButtonClick(ShutterButton button) { 1383 if (mPausing) { 1384 return; 1385 } 1386 switch (button.getId()) { 1387 case R.id.shutter_button: 1388 doSnap(); 1389 break; 1390 } 1391 } 1392 1393 private OnScreenHint mStorageHint; 1394 1395 private void updateStorageHint() { 1396 String noStorageText = null; 1397 1398 if (mPicturesRemaining == Storage.UNAVAILABLE) { 1399 noStorageText = getString(R.string.no_storage); 1400 } else if (mPicturesRemaining == Storage.PREPARING) { 1401 noStorageText = getString(R.string.preparing_sd); 1402 } else if (mPicturesRemaining == Storage.UNKNOWN_SIZE) { 1403 noStorageText = getString(R.string.access_sd_fail); 1404 } else if (mPicturesRemaining < 1L) { 1405 noStorageText = getString(R.string.not_enough_space); 1406 } 1407 1408 if (noStorageText != null) { 1409 if (mStorageHint == null) { 1410 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1411 } else { 1412 mStorageHint.setText(noStorageText); 1413 } 1414 mStorageHint.show(); 1415 } else if (mStorageHint != null) { 1416 mStorageHint.cancel(); 1417 mStorageHint = null; 1418 } 1419 } 1420 1421 private void installIntentFilter() { 1422 // install an intent filter to receive SD card related events. 1423 IntentFilter intentFilter = 1424 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1425 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1426 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1427 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1428 intentFilter.addDataScheme("file"); 1429 registerReceiver(mReceiver, intentFilter); 1430 mDidRegister = true; 1431 } 1432 1433 private void initializeFocusTone() { 1434 // Initialize focus tone generator. 1435 try { 1436 mFocusToneGenerator = new ToneGenerator( 1437 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1438 } catch (Throwable ex) { 1439 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1440 mFocusToneGenerator = null; 1441 } 1442 } 1443 1444 private void initializeScreenBrightness() { 1445 Window win = getWindow(); 1446 // Overright the brightness settings if it is automatic 1447 int mode = Settings.System.getInt( 1448 getContentResolver(), 1449 Settings.System.SCREEN_BRIGHTNESS_MODE, 1450 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); 1451 if (mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC) { 1452 WindowManager.LayoutParams winParams = win.getAttributes(); 1453 winParams.screenBrightness = DEFAULT_CAMERA_BRIGHTNESS; 1454 win.setAttributes(winParams); 1455 } 1456 } 1457 1458 @Override 1459 protected void onResume() { 1460 super.onResume(); 1461 1462 mPausing = false; 1463 mJpegPictureCallbackTime = 0; 1464 mZoomValue = 0; 1465 1466 // Start the preview if it is not started. 1467 if (mCameraState == PREVIEW_STOPPED && !mStartPreviewFail) { 1468 resetExposureCompensation(); 1469 if (!restartPreview()) return; 1470 } 1471 1472 if (mSurfaceHolder != null) { 1473 // If first time initialization is not finished, put it in the 1474 // message queue. 1475 if (!mFirstTimeInitialized) { 1476 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1477 } else { 1478 initializeSecondTime(); 1479 } 1480 } 1481 keepScreenOnAwhile(); 1482 1483 if (mCameraState == IDLE) { 1484 mOnResumeTime = SystemClock.uptimeMillis(); 1485 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 1486 } 1487 } 1488 1489 @Override 1490 public void onConfigurationChanged(Configuration config) { 1491 super.onConfigurationChanged(config); 1492 changeHeadUpDisplayState(); 1493 } 1494 1495 @Override 1496 protected void onPause() { 1497 mPausing = true; 1498 stopPreview(); 1499 // Close the camera now because other activities may need to use it. 1500 closeCamera(); 1501 resetScreenOn(); 1502 collapseCameraControls(); 1503 changeHeadUpDisplayState(); 1504 1505 if (mFirstTimeInitialized) { 1506 mOrientationListener.disable(); 1507 if (!mIsImageCaptureIntent) { 1508 if (mThumbnailButton != null) { 1509 mThumbnailButton.storeData(LAST_THUMB_PATH); 1510 } 1511 } 1512 hidePostCaptureAlert(); 1513 } 1514 1515 if (mDidRegister) { 1516 unregisterReceiver(mReceiver); 1517 mDidRegister = false; 1518 } 1519 stopReceivingLocationUpdates(); 1520 1521 if (mFocusToneGenerator != null) { 1522 mFocusToneGenerator.release(); 1523 mFocusToneGenerator = null; 1524 } 1525 1526 if (mStorageHint != null) { 1527 mStorageHint.cancel(); 1528 mStorageHint = null; 1529 } 1530 1531 // If we are in an image capture intent and has taken 1532 // a picture, we just clear it in onPause. 1533 mJpegImageData = null; 1534 1535 // Remove the messages in the event queue. 1536 mHandler.removeMessages(RESTART_PREVIEW); 1537 mHandler.removeMessages(FIRST_TIME_INIT); 1538 mHandler.removeMessages(CHECK_DISPLAY_ROTATION); 1539 mHandler.removeMessages(CANCEL_AUTOFOCUS); 1540 1541 super.onPause(); 1542 } 1543 1544 @Override 1545 protected void onActivityResult( 1546 int requestCode, int resultCode, Intent data) { 1547 switch (requestCode) { 1548 case CROP_MSG: { 1549 Intent intent = new Intent(); 1550 if (data != null) { 1551 Bundle extras = data.getExtras(); 1552 if (extras != null) { 1553 intent.putExtras(extras); 1554 } 1555 } 1556 setResultEx(resultCode, intent); 1557 finish(); 1558 1559 File path = getFileStreamPath(sTempCropFilename); 1560 path.delete(); 1561 1562 break; 1563 } 1564 } 1565 } 1566 1567 private boolean canTakePicture() { 1568 return isCameraIdle() && (mPicturesRemaining > 0); 1569 } 1570 1571 private void autoFocus() { 1572 Log.v(TAG, "Start autofocus."); 1573 mFocusStartTime = System.currentTimeMillis(); 1574 mCameraDevice.autoFocus(mAutoFocusCallback); 1575 mCameraState = FOCUSING; 1576 enableCameraControls(false); 1577 updateFocusUI(); 1578 mHandler.removeMessages(CANCEL_AUTOFOCUS); 1579 } 1580 1581 private void cancelAutoFocus() { 1582 Log.v(TAG, "Cancel autofocus."); 1583 mCameraDevice.cancelAutoFocus(); 1584 mCameraState = IDLE; 1585 enableCameraControls(true); 1586 resetTouchFocus(); 1587 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1588 updateFocusUI(); 1589 mHandler.removeMessages(CANCEL_AUTOFOCUS); 1590 } 1591 1592 private void updateFocusUI() { 1593 if (mCameraState == FOCUSING || mCameraState == FOCUSING_SNAP_ON_FINISH) { 1594 mFocusRectangle.showStart(); 1595 } else if (mCameraState == FOCUS_SUCCESS) { 1596 mFocusRectangle.showSuccess(); 1597 } else if (mCameraState == FOCUS_FAIL) { 1598 mFocusRectangle.showFail(); 1599 } else { 1600 mFocusRectangle.clear(); 1601 } 1602 } 1603 1604 // Preview area is touched. Handle touch focus. 1605 @Override 1606 public boolean onTouch(View v, MotionEvent e) { 1607 if (e.getAction() != MotionEvent.ACTION_DOWN) return false; 1608 1609 // Do not trigger touch focus when popup window is dismissed. 1610 if (collapseCameraControls()) return false; 1611 1612 if (mPausing || !mFirstTimeInitialized || !canTakePicture()) { 1613 return false; 1614 } 1615 1616 // Take a picture if metering area or focus area is supported. 1617 if (mParameters.getMaxNumMeteringAreas() == 0 1618 && (mParameters.getMaxNumFocusAreas() == 0 1619 || (!mFocusMode.equals(Parameters.FOCUS_MODE_AUTO) && 1620 !mFocusMode.equals(Parameters.FOCUS_MODE_MACRO) && 1621 !mFocusMode.equals(Parameters.FOCUS_MODE_CONTINUOUS_VIDEO)))) { 1622 return false; 1623 } 1624 1625 // Calculate the position of the focus rectangle. 1626 int x = Math.round(e.getX()); 1627 int y = Math.round(e.getY()); 1628 int focusWidth = mFocusRectangle.getWidth(); 1629 int focusHeight = mFocusRectangle.getHeight(); 1630 int left = Util.clamp(x - focusWidth / 2, 0, 1631 mPreviewFrame.getWidth() - focusWidth); 1632 int top = Util.clamp(y - focusHeight / 2, 0, 1633 mPreviewFrame.getHeight() - focusHeight); 1634 Log.d(TAG, "x=" + x + ". y=" + y); 1635 Log.d(TAG, "Margin left=" + left + " . Margin top=" + top); 1636 Log.d(TAG, "mPreviewFrame width=" + mPreviewFrame.getWidth() + 1637 "mPreviewFrame.getHeight()="+mPreviewFrame.getHeight()); 1638 1639 // Convert the coordinates to driver format. The coordinates range from 1640 // -1000 to 1000. 1641 if (mFocusArea == null) { 1642 mFocusArea = new ArrayList<Area>(); 1643 mFocusArea.add(new Area(new Rect(), 1)); 1644 } 1645 Rect rect = mFocusArea.get(0).rect; 1646 rect.left = (int) ((double) left / mPreviewFrame.getWidth() * 2000 - 1000); 1647 rect.top = (int) ((double) top / mPreviewFrame.getHeight() * 2000 - 1000); 1648 rect.right = (int) ((double) (left + focusWidth) 1649 / mPreviewFrame.getWidth() * 2000 - 1000); 1650 rect.bottom = (int) ((double) (top + focusHeight) 1651 / mPreviewFrame.getHeight() * 2000 - 1000); 1652 1653 // Use margin to set the focus rectangle to the touched area. 1654 RelativeLayout.LayoutParams p = 1655 (RelativeLayout.LayoutParams) mFocusRectangle.getLayoutParams(); 1656 p.setMargins(left + mPreviewBorder.getPaddingLeft(), 1657 top + mPreviewBorder.getPaddingTop(), 0, 0); 1658 // Disable "center" rule because we no longer want to put it in the center. 1659 int[] rules = p.getRules(); 1660 rules[RelativeLayout.CENTER_IN_PARENT] = 0; 1661 mFocusRectangle.requestLayout(); 1662 1663 // Set the focus area and do autofocus. 1664 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1665 autoFocus(); 1666 1667 return true; 1668 } 1669 1670 void resetTouchFocus() { 1671 // Put focus rectangle to the center. 1672 RelativeLayout.LayoutParams p = 1673 (RelativeLayout.LayoutParams) mFocusRectangle.getLayoutParams(); 1674 int[] rules = p.getRules(); 1675 rules[RelativeLayout.CENTER_IN_PARENT] = RelativeLayout.TRUE; 1676 p.setMargins(0, 0, 0, 0); 1677 1678 mFocusArea = null; 1679 } 1680 1681 @Override 1682 public void onBackPressed() { 1683 if (!isCameraIdle()) { 1684 // ignore backs while we're taking a picture 1685 return; 1686 } else if (!collapseCameraControls()) { 1687 super.onBackPressed(); 1688 } 1689 } 1690 1691 @Override 1692 public boolean onKeyDown(int keyCode, KeyEvent event) { 1693 switch (keyCode) { 1694 case KeyEvent.KEYCODE_FOCUS: 1695 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1696 doFocus(true); 1697 } 1698 return true; 1699 case KeyEvent.KEYCODE_CAMERA: 1700 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1701 doSnap(); 1702 } 1703 return true; 1704 case KeyEvent.KEYCODE_DPAD_CENTER: 1705 // If we get a dpad center event without any focused view, move 1706 // the focus to the shutter button and press it. 1707 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1708 // Start auto-focus immediately to reduce shutter lag. After 1709 // the shutter button gets the focus, doFocus() will be 1710 // called again but it is fine. 1711 if (collapseCameraControls()) return true; 1712 doFocus(true); 1713 if (mShutterButton.isInTouchMode()) { 1714 mShutterButton.requestFocusFromTouch(); 1715 } else { 1716 mShutterButton.requestFocus(); 1717 } 1718 mShutterButton.setPressed(true); 1719 } 1720 return true; 1721 } 1722 1723 return super.onKeyDown(keyCode, event); 1724 } 1725 1726 @Override 1727 public boolean onKeyUp(int keyCode, KeyEvent event) { 1728 switch (keyCode) { 1729 case KeyEvent.KEYCODE_FOCUS: 1730 if (mFirstTimeInitialized) { 1731 doFocus(false); 1732 } 1733 return true; 1734 } 1735 return super.onKeyUp(keyCode, event); 1736 } 1737 1738 private void doSnap() { 1739 if (collapseCameraControls()) return; 1740 1741 Log.v(TAG, "doSnap: mCameraState=" + mCameraState); 1742 // If the user has half-pressed the shutter and focus is completed, we 1743 // can take the photo right away. If the focus mode is infinity, we can 1744 // also take the photo. 1745 if (mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1746 || mFocusMode.equals(Parameters.FOCUS_MODE_FIXED) 1747 || mFocusMode.equals(Parameters.FOCUS_MODE_EDOF) 1748 || (mCameraState == FOCUS_SUCCESS 1749 || mCameraState == FOCUS_FAIL)) { 1750 capture(); 1751 } else if (mCameraState == FOCUSING) { 1752 // Half pressing the shutter (i.e. the focus button event) will 1753 // already have requested AF for us, so just request capture on 1754 // focus here. 1755 mCameraState = FOCUSING_SNAP_ON_FINISH; 1756 } else if (mCameraState == IDLE) { 1757 // Focus key down event is dropped for some reasons. Just ignore. 1758 } 1759 } 1760 1761 private void doFocus(boolean pressed) { 1762 // Do the focus if the mode is not infinity. 1763 if (collapseCameraControls()) return; 1764 if (!(mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1765 || mFocusMode.equals(Parameters.FOCUS_MODE_FIXED) 1766 || mFocusMode.equals(Parameters.FOCUS_MODE_EDOF))) { 1767 if (pressed) { // Focus key down. 1768 // Do not do focus if there is not enoguh storage. Do not focus 1769 // if touch focus has been triggered, that is, camera state is 1770 // FOCUS_SUCCESS or FOCUS_FAIL. 1771 if (canTakePicture() && mCameraState != FOCUS_SUCCESS 1772 && mCameraState != FOCUS_FAIL) { 1773 autoFocus(); 1774 } 1775 } else { // Focus key up. 1776 // User releases half-pressed focus key. 1777 if (mCameraState == FOCUSING || mCameraState == FOCUS_SUCCESS 1778 || mCameraState == FOCUS_FAIL) { 1779 cancelAutoFocus(); 1780 } 1781 } 1782 } 1783 } 1784 1785 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1786 // Make sure we have a surface in the holder before proceeding. 1787 if (holder.getSurface() == null) { 1788 Log.d(TAG, "holder.getSurface() == null"); 1789 return; 1790 } 1791 1792 Log.v(TAG, "surfaceChanged. w=" + w + ". h=" + h); 1793 1794 // We need to save the holder for later use, even when the mCameraDevice 1795 // is null. This could happen if onResume() is invoked after this 1796 // function. 1797 mSurfaceHolder = holder; 1798 1799 // The mCameraDevice will be null if it fails to connect to the camera 1800 // hardware. In this case we will show a dialog and then finish the 1801 // activity, so it's OK to ignore it. 1802 if (mCameraDevice == null) return; 1803 1804 // Sometimes surfaceChanged is called after onPause or before onResume. 1805 // Ignore it. 1806 if (mPausing || isFinishing()) return; 1807 1808 // Set preview display if the surface is being created. Preview was 1809 // already started. Also restart the preview if display rotation has 1810 // changed. Sometimes this happens when the device is held in portrait 1811 // and camera app is opened. Rotation animation takes some time and 1812 // display rotation in onCreate may not be what we want. 1813 if (mCameraState != PREVIEW_STOPPED 1814 && (Util.getDisplayRotation(this) == mDisplayRotation) 1815 && holder.isCreating()) { 1816 // Set preview display if the surface is being created and preview 1817 // was already started. That means preview display was set to null 1818 // and we need to set it now. 1819 setPreviewDisplay(holder); 1820 } else { 1821 // 1. Restart the preview if the size of surface was changed. The 1822 // framework may not support changing preview display on the fly. 1823 // 2. Start the preview now if surface was destroyed and preview 1824 // stopped. 1825 restartPreview(); 1826 } 1827 1828 // If first time initialization is not finished, send a message to do 1829 // it later. We want to finish surfaceChanged as soon as possible to let 1830 // user see preview first. 1831 if (!mFirstTimeInitialized) { 1832 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1833 } else { 1834 initializeSecondTime(); 1835 } 1836 } 1837 1838 public void surfaceCreated(SurfaceHolder holder) { 1839 } 1840 1841 public void surfaceDestroyed(SurfaceHolder holder) { 1842 stopPreview(); 1843 mSurfaceHolder = null; 1844 } 1845 1846 private void closeCamera() { 1847 if (mCameraDevice != null) { 1848 CameraHolder.instance().release(); 1849 mCameraDevice.setZoomChangeListener(null); 1850 mCameraDevice = null; 1851 mCameraState = PREVIEW_STOPPED; 1852 } 1853 } 1854 1855 private void ensureCameraDevice() throws CameraHardwareException { 1856 if (mCameraDevice == null) { 1857 mCameraDevice = CameraHolder.instance().open(mCameraId); 1858 mInitialParams = mCameraDevice.getParameters(); 1859 } 1860 } 1861 1862 private void showCameraErrorAndFinish() { 1863 Resources ress = getResources(); 1864 Util.showFatalErrorAndFinish(Camera.this, 1865 ress.getString(R.string.camera_error_title), 1866 ress.getString(R.string.cannot_connect_camera)); 1867 } 1868 1869 private boolean restartPreview() { 1870 try { 1871 startPreview(); 1872 } catch (CameraHardwareException e) { 1873 showCameraErrorAndFinish(); 1874 return false; 1875 } 1876 return true; 1877 } 1878 1879 private void setPreviewDisplay(SurfaceHolder holder) { 1880 try { 1881 mCameraDevice.setPreviewDisplay(holder); 1882 } catch (Throwable ex) { 1883 closeCamera(); 1884 throw new RuntimeException("setPreviewDisplay failed", ex); 1885 } 1886 } 1887 1888 private void startPreview() throws CameraHardwareException { 1889 if (mPausing || isFinishing()) return; 1890 1891 resetTouchFocus(); 1892 1893 ensureCameraDevice(); 1894 mCameraDevice.setErrorCallback(mErrorCallback); 1895 1896 // If we're previewing already, stop the preview first (this will blank 1897 // the screen). 1898 if (mCameraState != PREVIEW_STOPPED) stopPreview(); 1899 1900 setPreviewDisplay(mSurfaceHolder); 1901 mDisplayRotation = Util.getDisplayRotation(this); 1902 Util.setCameraDisplayOrientation(mDisplayRotation, mCameraId, mCameraDevice); 1903 setCameraParameters(UPDATE_PARAM_ALL); 1904 1905 1906 try { 1907 Log.v(TAG, "startPreview"); 1908 mCameraDevice.startPreview(); 1909 } catch (Throwable ex) { 1910 closeCamera(); 1911 throw new RuntimeException("startPreview failed", ex); 1912 } 1913 mZoomState = ZOOM_STOPPED; 1914 mCameraState = IDLE; 1915 } 1916 1917 private void stopPreview() { 1918 if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) { 1919 Log.v(TAG, "stopPreview"); 1920 mCameraDevice.stopPreview(); 1921 } 1922 mCameraState = PREVIEW_STOPPED; 1923 // If auto focus was in progress, it would have been canceled. 1924 updateFocusUI(); 1925 } 1926 1927 private static boolean isSupported(String value, List<String> supported) { 1928 return supported == null ? false : supported.indexOf(value) >= 0; 1929 } 1930 1931 private void updateCameraParametersInitialize() { 1932 // Reset preview frame rate to the maximum because it may be lowered by 1933 // video camera application. 1934 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1935 if (frameRates != null) { 1936 Integer max = Collections.max(frameRates); 1937 mParameters.setPreviewFrameRate(max); 1938 } 1939 1940 } 1941 1942 private void updateCameraParametersZoom() { 1943 // Set zoom. 1944 if (mParameters.isZoomSupported()) { 1945 mParameters.setZoom(mZoomValue); 1946 } 1947 } 1948 1949 private void updateCameraParametersPreference() { 1950 if (mParameters.getMaxNumFocusAreas() > 0) { 1951 mParameters.setFocusAreas(mFocusArea); 1952 Log.d(TAG, "Parameter focus areas=" + mParameters.get("focus-areas")); 1953 } 1954 1955 if (mParameters.getMaxNumMeteringAreas() > 0) { 1956 // Use the same area for focus and metering. 1957 mParameters.setMeteringAreas(mFocusArea); 1958 } 1959 1960 // Set picture size. 1961 String pictureSize = mPreferences.getString( 1962 CameraSettings.KEY_PICTURE_SIZE, null); 1963 if (pictureSize == null) { 1964 CameraSettings.initialCameraPictureSize(this, mParameters); 1965 } else { 1966 List<Size> supported = mParameters.getSupportedPictureSizes(); 1967 CameraSettings.setCameraPictureSize( 1968 pictureSize, supported, mParameters); 1969 } 1970 1971 // Set the preview frame aspect ratio according to the picture size. 1972 Size size = mParameters.getPictureSize(); 1973 PreviewFrameLayout frameLayout = 1974 (PreviewFrameLayout) findViewById(R.id.frame_layout); 1975 frameLayout.setAspectRatio((double) size.width / size.height); 1976 1977 // Set a preview size that is closest to the viewfinder height and has 1978 // the right aspect ratio. 1979 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1980 Size optimalSize = Util.getOptimalPreviewSize(this, 1981 sizes, (double) size.width / size.height); 1982 Size original = mParameters.getPreviewSize(); 1983 if (!original.equals(optimalSize)) { 1984 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1985 1986 // Zoom related settings will be changed for different preview 1987 // sizes, so set and read the parameters to get lastest values 1988 mCameraDevice.setParameters(mParameters); 1989 mParameters = mCameraDevice.getParameters(); 1990 } 1991 Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height); 1992 1993 // Since change scene mode may change supported values, 1994 // Set scene mode first, 1995 mSceneMode = mPreferences.getString( 1996 CameraSettings.KEY_SCENE_MODE, 1997 getString(R.string.pref_camera_scenemode_default)); 1998 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 1999 if (!mParameters.getSceneMode().equals(mSceneMode)) { 2000 mParameters.setSceneMode(mSceneMode); 2001 mCameraDevice.setParameters(mParameters); 2002 2003 // Setting scene mode will change the settings of flash mode, 2004 // white balance, and focus mode. Here we read back the 2005 // parameters, so we can know those settings. 2006 mParameters = mCameraDevice.getParameters(); 2007 } 2008 } else { 2009 mSceneMode = mParameters.getSceneMode(); 2010 if (mSceneMode == null) { 2011 mSceneMode = Parameters.SCENE_MODE_AUTO; 2012 } 2013 } 2014 2015 // Set JPEG quality. 2016 String jpegQuality = mPreferences.getString( 2017 CameraSettings.KEY_JPEG_QUALITY, 2018 getString(R.string.pref_camera_jpegquality_default)); 2019 mParameters.setJpegQuality(JpegEncodingQualityMappings.getQualityNumber(jpegQuality)); 2020 2021 // For the following settings, we need to check if the settings are 2022 // still supported by latest driver, if not, ignore the settings. 2023 2024 // Set color effect parameter. 2025 String colorEffect = mPreferences.getString( 2026 CameraSettings.KEY_COLOR_EFFECT, 2027 getString(R.string.pref_camera_coloreffect_default)); 2028 if (isSupported(colorEffect, mParameters.getSupportedColorEffects())) { 2029 mParameters.setColorEffect(colorEffect); 2030 } 2031 2032 // Set exposure compensation 2033 String exposure = mPreferences.getString( 2034 CameraSettings.KEY_EXPOSURE, 2035 getString(R.string.pref_exposure_default)); 2036 try { 2037 int value = Integer.parseInt(exposure); 2038 int max = mParameters.getMaxExposureCompensation(); 2039 int min = mParameters.getMinExposureCompensation(); 2040 if (value >= min && value <= max) { 2041 mParameters.setExposureCompensation(value); 2042 } else { 2043 Log.w(TAG, "invalid exposure range: " + exposure); 2044 } 2045 } catch (NumberFormatException e) { 2046 Log.w(TAG, "invalid exposure: " + exposure); 2047 } 2048 2049 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 2050 // Set flash mode. 2051 String flashMode = mPreferences.getString( 2052 CameraSettings.KEY_FLASH_MODE, 2053 getString(R.string.pref_camera_flashmode_default)); 2054 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 2055 if (isSupported(flashMode, supportedFlash)) { 2056 mParameters.setFlashMode(flashMode); 2057 } else { 2058 flashMode = mParameters.getFlashMode(); 2059 if (flashMode == null) { 2060 flashMode = getString( 2061 R.string.pref_camera_flashmode_no_flash); 2062 } 2063 } 2064 2065 // Set white balance parameter. 2066 String whiteBalance = mPreferences.getString( 2067 CameraSettings.KEY_WHITE_BALANCE, 2068 getString(R.string.pref_camera_whitebalance_default)); 2069 if (isSupported(whiteBalance, 2070 mParameters.getSupportedWhiteBalance())) { 2071 mParameters.setWhiteBalance(whiteBalance); 2072 } else { 2073 whiteBalance = mParameters.getWhiteBalance(); 2074 if (whiteBalance == null) { 2075 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 2076 } 2077 } 2078 2079 // Set focus mode. 2080 mFocusMode = mPreferences.getString( 2081 CameraSettings.KEY_FOCUS_MODE, 2082 getString(R.string.pref_camera_focusmode_default)); 2083 if (isSupported(mFocusMode, mParameters.getSupportedFocusModes())) { 2084 mParameters.setFocusMode(mFocusMode); 2085 } else { 2086 mFocusMode = mParameters.getFocusMode(); 2087 if (mFocusMode == null) { 2088 mFocusMode = Parameters.FOCUS_MODE_AUTO; 2089 } 2090 } 2091 } else { 2092 mFocusMode = mParameters.getFocusMode(); 2093 } 2094 } 2095 2096 // We separate the parameters into several subsets, so we can update only 2097 // the subsets actually need updating. The PREFERENCE set needs extra 2098 // locking because the preference can be changed from GLThread as well. 2099 private void setCameraParameters(int updateSet) { 2100 mParameters = mCameraDevice.getParameters(); 2101 2102 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 2103 updateCameraParametersInitialize(); 2104 } 2105 2106 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 2107 updateCameraParametersZoom(); 2108 } 2109 2110 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 2111 updateCameraParametersPreference(); 2112 } 2113 2114 mCameraDevice.setParameters(mParameters); 2115 } 2116 2117 // If the Camera is idle, update the parameters immediately, otherwise 2118 // accumulate them in mUpdateSet and update later. 2119 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 2120 mUpdateSet |= additionalUpdateSet; 2121 if (mCameraDevice == null) { 2122 // We will update all the parameters when we open the device, so 2123 // we don't need to do anything now. 2124 mUpdateSet = 0; 2125 return; 2126 } else if (isCameraIdle()) { 2127 setCameraParameters(mUpdateSet); 2128 updateSceneModeUI(); 2129 mUpdateSet = 0; 2130 } else { 2131 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 2132 mHandler.sendEmptyMessageDelayed( 2133 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 2134 } 2135 } 2136 } 2137 2138 private void gotoGallery() { 2139 MenuHelper.gotoCameraImageGallery(this); 2140 } 2141 2142 private void viewImage(RotateImageView view) { 2143 if(!view.isUriValid()) { 2144 Log.e(TAG, "Uri invalid. uri=" + view.getUri()); 2145 return; 2146 } 2147 2148 try { 2149 startActivity(new Intent( 2150 Util.REVIEW_ACTION, view.getUri())); 2151 } catch (ActivityNotFoundException ex) { 2152 try { 2153 startActivity(new Intent( 2154 Intent.ACTION_VIEW, view.getUri())); 2155 } catch (ActivityNotFoundException e) { 2156 Log.e(TAG, "review image fail. uri=" + view.getUri(), e); 2157 } 2158 } 2159 } 2160 2161 private void startReceivingLocationUpdates() { 2162 if (mLocationManager != null) { 2163 try { 2164 mLocationManager.requestLocationUpdates( 2165 LocationManager.NETWORK_PROVIDER, 2166 1000, 2167 0F, 2168 mLocationListeners[1]); 2169 } catch (SecurityException ex) { 2170 Log.i(TAG, "fail to request location update, ignore", ex); 2171 } catch (IllegalArgumentException ex) { 2172 Log.d(TAG, "provider does not exist " + ex.getMessage()); 2173 } 2174 try { 2175 mLocationManager.requestLocationUpdates( 2176 LocationManager.GPS_PROVIDER, 2177 1000, 2178 0F, 2179 mLocationListeners[0]); 2180 showGpsOnScreenIndicator(false); 2181 } catch (SecurityException ex) { 2182 Log.i(TAG, "fail to request location update, ignore", ex); 2183 } catch (IllegalArgumentException ex) { 2184 Log.d(TAG, "provider does not exist " + ex.getMessage()); 2185 } 2186 Log.d(TAG, "startReceivingLocationUpdates"); 2187 } 2188 } 2189 2190 private void stopReceivingLocationUpdates() { 2191 if (mLocationManager != null) { 2192 for (int i = 0; i < mLocationListeners.length; i++) { 2193 try { 2194 mLocationManager.removeUpdates(mLocationListeners[i]); 2195 } catch (Exception ex) { 2196 Log.i(TAG, "fail to remove location listners, ignore", ex); 2197 } 2198 } 2199 Log.d(TAG, "stopReceivingLocationUpdates"); 2200 } 2201 hideGpsOnScreenIndicator(); 2202 } 2203 2204 private Location getCurrentLocation() { 2205 // go in best to worst order 2206 for (int i = 0; i < mLocationListeners.length; i++) { 2207 Location l = mLocationListeners[i].current(); 2208 if (l != null) return l; 2209 } 2210 Log.d(TAG, "No location received yet."); 2211 return null; 2212 } 2213 2214 private boolean isCameraIdle() { 2215 return mCameraState == IDLE || mCameraState == FOCUS_SUCCESS || mCameraState == FOCUS_FAIL; 2216 } 2217 2218 private boolean isImageCaptureIntent() { 2219 String action = getIntent().getAction(); 2220 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 2221 } 2222 2223 private void setupCaptureParams() { 2224 Bundle myExtras = getIntent().getExtras(); 2225 if (myExtras != null) { 2226 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 2227 mCropValue = myExtras.getString("crop"); 2228 } 2229 } 2230 2231 private void showPostCaptureAlert() { 2232 if (mIsImageCaptureIntent) { 2233 if (mIndicatorWheel == null) { 2234 mShutterButton.setVisibility(View.INVISIBLE); 2235 } else { 2236 mShutterButton.setEnabled(false); 2237 } 2238 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2239 for (int id : pickIds) { 2240 View button = findViewById(id); 2241 ((View) button.getParent()).setVisibility(View.VISIBLE); 2242 } 2243 2244 // Remove the text of the cancel button 2245 View view = findViewById(R.id.btn_cancel); 2246 if (view instanceof Button) ((Button) view).setText(""); 2247 } 2248 } 2249 2250 private void hidePostCaptureAlert() { 2251 if (mIsImageCaptureIntent) { 2252 if (mIndicatorWheel == null) { 2253 mShutterButton.setVisibility(View.VISIBLE); 2254 } else { 2255 mShutterButton.setEnabled(true); 2256 } 2257 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2258 for (int id : pickIds) { 2259 View button = findViewById(id); 2260 ((View) button.getParent()).setVisibility(View.GONE); 2261 } 2262 enableCameraControls(true); 2263 2264 // Restore the text of the cancel button 2265 View view = findViewById(R.id.btn_cancel); 2266 if (view instanceof Button) { 2267 ((Button) view).setText(R.string.review_cancel); 2268 } 2269 } 2270 } 2271 2272 @Override 2273 public boolean onPrepareOptionsMenu(Menu menu) { 2274 super.onPrepareOptionsMenu(menu); 2275 // Only show the menu when camera is idle. 2276 for (int i = 0; i < menu.size(); i++) { 2277 menu.getItem(i).setVisible(isCameraIdle()); 2278 } 2279 2280 return true; 2281 } 2282 2283 @Override 2284 public boolean onCreateOptionsMenu(Menu menu) { 2285 super.onCreateOptionsMenu(menu); 2286 2287 if (mIsImageCaptureIntent) { 2288 // No options menu for attach mode. 2289 return false; 2290 } else { 2291 addBaseMenuItems(menu); 2292 } 2293 return true; 2294 } 2295 2296 private void addBaseMenuItems(Menu menu) { 2297 MenuHelper.addSwitchModeMenuItem(menu, true, new Runnable() { 2298 public void run() { 2299 switchToVideoMode(); 2300 } 2301 }); 2302 MenuItem gallery = menu.add(Menu.NONE, Menu.NONE, 2303 MenuHelper.POSITION_GOTO_GALLERY, 2304 R.string.camera_gallery_photos_text) 2305 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2306 public boolean onMenuItemClick(MenuItem item) { 2307 gotoGallery(); 2308 return true; 2309 } 2310 }); 2311 gallery.setIcon(android.R.drawable.ic_menu_gallery); 2312 mGalleryItems.add(gallery); 2313 2314 if (mNumberOfCameras > 1) { 2315 menu.add(Menu.NONE, Menu.NONE, 2316 MenuHelper.POSITION_SWITCH_CAMERA_ID, 2317 R.string.switch_camera_id) 2318 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2319 public boolean onMenuItemClick(MenuItem item) { 2320 CameraSettings.writePreferredCameraId(mPreferences, 2321 ((mCameraId == mFrontCameraId) 2322 ? mBackCameraId : mFrontCameraId)); 2323 onSharedPreferenceChanged(); 2324 return true; 2325 } 2326 }).setIcon(android.R.drawable.ic_menu_camera); 2327 } 2328 } 2329 2330 private boolean switchToVideoMode() { 2331 if (isFinishing() || !isCameraIdle()) return false; 2332 MenuHelper.gotoVideoMode(Camera.this); 2333 mHandler.removeMessages(FIRST_TIME_INIT); 2334 finish(); 2335 return true; 2336 } 2337 2338 public boolean onSwitchChanged(Switcher source, boolean onOff) { 2339 if (onOff == SWITCH_VIDEO) { 2340 return switchToVideoMode(); 2341 } else { 2342 return true; 2343 } 2344 } 2345 2346 private void onSharedPreferenceChanged() { 2347 // ignore the events after "onPause()" 2348 if (mPausing) return; 2349 2350 boolean recordLocation; 2351 2352 recordLocation = RecordLocationPreference.get( 2353 mPreferences, getContentResolver()); 2354 2355 if (mRecordLocation != recordLocation) { 2356 mRecordLocation = recordLocation; 2357 if (mRecordLocation) { 2358 startReceivingLocationUpdates(); 2359 } else { 2360 stopReceivingLocationUpdates(); 2361 } 2362 } 2363 int cameraId = CameraSettings.readPreferredCameraId(mPreferences); 2364 if (mCameraId != cameraId) { 2365 // Restart the activity to have a crossfade animation. 2366 // TODO: Use SurfaceTexture to implement a better and faster 2367 // animation. 2368 if (mIsImageCaptureIntent) { 2369 // If the intent is camera capture, stay in camera capture mode. 2370 MenuHelper.gotoCameraMode(this, getIntent()); 2371 } else { 2372 MenuHelper.gotoCameraMode(this); 2373 } 2374 2375 finish(); 2376 } else { 2377 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 2378 } 2379 } 2380 2381 @Override 2382 public void onUserInteraction() { 2383 super.onUserInteraction(); 2384 keepScreenOnAwhile(); 2385 } 2386 2387 private void resetScreenOn() { 2388 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2389 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2390 } 2391 2392 private void keepScreenOnAwhile() { 2393 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2394 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2395 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2396 } 2397 2398 private class MyHeadUpDisplayListener implements HeadUpDisplay.Listener { 2399 2400 public void onSharedPreferenceChanged() { 2401 Camera.this.onSharedPreferenceChanged(); 2402 } 2403 2404 public void onRestorePreferencesClicked() { 2405 Camera.this.onRestorePreferencesClicked(); 2406 } 2407 2408 public void onPopupWindowVisibilityChanged(int visibility) { 2409 } 2410 } 2411 2412 protected void onRestorePreferencesClicked() { 2413 if (mPausing) return; 2414 Runnable runnable = new Runnable() { 2415 public void run() { 2416 restorePreferences(); 2417 } 2418 }; 2419 MenuHelper.confirmAction(this, 2420 getString(R.string.confirm_restore_title), 2421 getString(R.string.confirm_restore_message), 2422 runnable); 2423 } 2424 2425 private void restorePreferences() { 2426 // Reset the zoom. Zoom value is not stored in preference. 2427 if (mParameters.isZoomSupported()) { 2428 mZoomValue = 0; 2429 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 2430 if (mZoomPicker != null) mZoomPicker.setZoomIndex(0); 2431 } 2432 2433 if (mHeadUpDisplay != null) { 2434 mHeadUpDisplay.restorePreferences(mParameters); 2435 } 2436 2437 if (mIndicatorWheel != null) { 2438 mIndicatorWheel.dismissSettingPopup(); 2439 CameraSettings.restorePreferences(Camera.this, mPreferences, 2440 mParameters); 2441 initializeIndicatorWheel(); 2442 onSharedPreferenceChanged(); 2443 } 2444 } 2445 2446 protected void onOverriddenPreferencesClicked() { 2447 if (mPausing) return; 2448 if (mNotSelectableToast == null) { 2449 String str = getResources().getString(R.string.not_selectable_in_scene_mode); 2450 mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT); 2451 } 2452 mNotSelectableToast.cancel(); 2453 mNotSelectableToast.show(); 2454 } 2455 2456 private class MyIndicatorWheelListener implements IndicatorWheel.Listener { 2457 public void onSharedPreferenceChanged() { 2458 Camera.this.onSharedPreferenceChanged(); 2459 } 2460 2461 public void onRestorePreferencesClicked() { 2462 Camera.this.onRestorePreferencesClicked(); 2463 } 2464 2465 public void onOverriddenPreferencesClicked() { 2466 Camera.this.onOverriddenPreferencesClicked(); 2467 } 2468 } 2469 2470 private class MyCameraPickerListener implements CameraPicker.Listener { 2471 public void onSharedPreferenceChanged() { 2472 Camera.this.onSharedPreferenceChanged(); 2473 } 2474 } 2475} 2476