Camera.java revision 0935e09bb12a1886a801713bbd78bbc20bf4ea4e
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.camera; 18 19import com.android.camera.ui.CameraPicker; 20import com.android.camera.ui.FaceView; 21import com.android.camera.ui.FocusRectangle; 22import com.android.camera.ui.IndicatorControl; 23import com.android.camera.ui.RotateImageView; 24import com.android.camera.ui.RotateLayout; 25import com.android.camera.ui.SharePopup; 26import com.android.camera.ui.ZoomControl; 27 28import android.app.Activity; 29import android.content.BroadcastReceiver; 30import android.content.ContentProviderClient; 31import android.content.ContentResolver; 32import android.content.Context; 33import android.content.Intent; 34import android.content.IntentFilter; 35import android.content.SharedPreferences.Editor; 36import android.graphics.Bitmap; 37import android.graphics.Rect; 38import android.hardware.Camera.Area; 39import android.hardware.Camera.CameraInfo; 40import android.hardware.Camera.Face; 41import android.hardware.Camera.FaceDetectionListener; 42import android.hardware.Camera.Parameters; 43import android.hardware.Camera.PictureCallback; 44import android.hardware.Camera.Size; 45import android.location.Location; 46import android.location.LocationManager; 47import android.location.LocationProvider; 48import android.media.CameraProfile; 49import android.media.ToneGenerator; 50import android.net.Uri; 51import android.os.Bundle; 52import android.os.Handler; 53import android.os.Looper; 54import android.os.Message; 55import android.os.MessageQueue; 56import android.os.SystemClock; 57import android.provider.MediaStore; 58import android.provider.Settings; 59import android.util.Log; 60import android.view.GestureDetector; 61import android.view.Gravity; 62import android.view.KeyEvent; 63import android.view.Menu; 64import android.view.MenuItem; 65import android.view.MenuItem.OnMenuItemClickListener; 66import android.view.MotionEvent; 67import android.view.OrientationEventListener; 68import android.view.SurfaceHolder; 69import android.view.SurfaceView; 70import android.view.View; 71import android.view.Window; 72import android.view.WindowManager; 73import android.view.animation.AnimationUtils; 74import android.widget.Button; 75import android.widget.TextView; 76import android.widget.Toast; 77 78import java.io.File; 79import java.io.FileNotFoundException; 80import java.io.FileOutputStream; 81import java.io.IOException; 82import java.io.OutputStream; 83import java.text.SimpleDateFormat; 84import java.util.ArrayList; 85import java.util.Collections; 86import java.util.Date; 87import java.util.Formatter; 88import java.util.List; 89 90/** The Camera activity which can preview and take pictures. */ 91public class Camera extends ActivityBase implements FocusManager.Listener, 92 View.OnTouchListener, ShutterButton.OnShutterButtonListener, 93 SurfaceHolder.Callback, ModePicker.OnModeChangeListener, 94 FaceDetectionListener, CameraPreference.OnPreferenceChangedListener { 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 SHOW_TAP_TO_FOCUS_TOAST = 7; 107 private static final int DISMISS_TAP_TO_FOCUS_TOAST = 8; 108 109 // The subset of parameters we need to update in setCameraParameters(). 110 private static final int UPDATE_PARAM_INITIALIZE = 1; 111 private static final int UPDATE_PARAM_ZOOM = 2; 112 private static final int UPDATE_PARAM_PREFERENCE = 4; 113 private static final int UPDATE_PARAM_ALL = -1; 114 115 // When setCameraParametersWhenIdle() is called, we accumulate the subsets 116 // needed to be updated in mUpdateSet. 117 private int mUpdateSet; 118 119 // The brightness settings used when it is set to automatic in the system. 120 // The reason why it is set to 0.7 is just because 1.0 is too bright. 121 private static final float DEFAULT_CAMERA_BRIGHTNESS = 0.7f; 122 123 private static final int SCREEN_DELAY = 2 * 60 * 1000; 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 ZoomControl mZoomControl; 135 136 private Parameters mParameters; 137 private Parameters mInitialParams; 138 private boolean mFocusAreaSupported; 139 private boolean mMeteringAreaSupported; 140 141 private MyOrientationEventListener mOrientationListener; 142 // The degrees of the device rotated clockwise from its natural orientation. 143 private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 144 // The orientation compensation for icons and thumbnails. Ex: if the value 145 // is 90, the UI components should be rotated 90 degrees counter-clockwise. 146 private int mOrientationCompensation = 0; 147 private ComboPreferences mPreferences; 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 GestureDetector mPopupGestureDetector; 156 private boolean mOpenCameraFail = false; 157 private boolean mCameraDisabled = false; 158 159 private View mPreviewFrame; // Preview frame area. 160 private View mPreviewBorder; 161 162 // A popup window that contains a bigger thumbnail and a list of apps to share. 163 private SharePopup mSharePopup; 164 // The bitmap of the last captured picture thumbnail and the URI of the 165 // original picture. 166 private Thumbnail mThumbnail; 167 // An imageview showing showing the last captured picture thumbnail. 168 private RotateImageView mThumbnailView; 169 private ModePicker mModePicker; 170 private FaceView mFaceView; 171 172 // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. 173 private String mCropValue; 174 private Uri mSaveUri; 175 176 // On-screen indicator 177 private View mGpsNoSignalIndicator; 178 private View mGpsHasSignalIndicator; 179 private TextView mExposureIndicator; 180 181 private final StringBuilder mBuilder = new StringBuilder(); 182 private final Formatter mFormatter = new Formatter(mBuilder); 183 private final Object[] mFormatterArgs = new Object[1]; 184 185 /** 186 * An unpublished intent flag requesting to return as soon as capturing 187 * is completed. 188 * 189 * TODO: consider publishing by moving into MediaStore. 190 */ 191 private final static String EXTRA_QUICK_CAPTURE = 192 "android.intent.extra.quickCapture"; 193 194 // The display rotation in degrees. This is only valid when mCameraState is 195 // not PREVIEW_STOPPED. 196 private int mDisplayRotation; 197 // The value for android.hardware.Camera.setDisplayOrientation. 198 private int mDisplayOrientation; 199 private boolean mPausing; 200 private boolean mFirstTimeInitialized; 201 private boolean mIsImageCaptureIntent; 202 private boolean mRecordLocation; 203 204 private static final int PREVIEW_STOPPED = 0; 205 private static final int IDLE = 1; // preview is active 206 // Focus is in progress. The exact focus state is in Focus.java. 207 private static final int FOCUSING = 2; 208 private static final int SNAPSHOT_IN_PROGRESS = 3; 209 private int mCameraState = PREVIEW_STOPPED; 210 211 private ContentResolver mContentResolver; 212 private boolean mDidRegister = false; 213 214 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 215 216 private LocationManager mLocationManager = null; 217 218 private final ShutterCallback mShutterCallback = new ShutterCallback(); 219 private final PostViewPictureCallback mPostViewPictureCallback = 220 new PostViewPictureCallback(); 221 private final RawPictureCallback mRawPictureCallback = 222 new RawPictureCallback(); 223 private final AutoFocusCallback mAutoFocusCallback = 224 new AutoFocusCallback(); 225 private final ZoomListener mZoomListener = new ZoomListener(); 226 private final CameraErrorCallback mErrorCallback = new CameraErrorCallback(); 227 228 private long mFocusStartTime; 229 private long mCaptureStartTime; 230 private long mShutterCallbackTime; 231 private long mPostViewPictureCallbackTime; 232 private long mRawPictureCallbackTime; 233 private long mJpegPictureCallbackTime; 234 private long mOnResumeTime; 235 private long mPicturesRemaining; 236 private byte[] mJpegImageData; 237 238 // These latency time are for the CameraLatency test. 239 public long mAutoFocusTime; 240 public long mShutterLag; 241 public long mShutterToPictureDisplayedTime; 242 public long mPictureDisplayedToJpegCallbackTime; 243 public long mJpegCallbackFinishTime; 244 245 // This handles everything about focus. 246 private FocusManager mFocusManager; 247 private String mSceneMode; 248 private Toast mNotSelectableToast; 249 private Toast mNoShareToast; 250 251 private final Handler mHandler = new MainHandler(); 252 private IndicatorControl mIndicatorControl; 253 private PreferenceGroup mPreferenceGroup; 254 255 // multiple cameras support 256 private int mNumberOfCameras; 257 private int mCameraId; 258 private int mFrontCameraId; 259 private int mBackCameraId; 260 261 private boolean mQuickCapture; 262 263 /** 264 * This Handler is used to post message back onto the main thread of the 265 * application 266 */ 267 private class MainHandler extends Handler { 268 @Override 269 public void handleMessage(Message msg) { 270 switch (msg.what) { 271 case RESTART_PREVIEW: { 272 startPreview(); 273 if (mJpegPictureCallbackTime != 0) { 274 long now = System.currentTimeMillis(); 275 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 276 Log.v(TAG, "mJpegCallbackFinishTime = " 277 + mJpegCallbackFinishTime + "ms"); 278 mJpegPictureCallbackTime = 0; 279 } 280 break; 281 } 282 283 case CLEAR_SCREEN_DELAY: { 284 getWindow().clearFlags( 285 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 286 break; 287 } 288 289 case FIRST_TIME_INIT: { 290 initializeFirstTime(); 291 break; 292 } 293 294 case SET_CAMERA_PARAMETERS_WHEN_IDLE: { 295 setCameraParametersWhenIdle(0); 296 break; 297 } 298 299 case CHECK_DISPLAY_ROTATION: { 300 // Restart the preview if display rotation has changed. 301 // Sometimes this happens when the device is held upside 302 // down and camera app is opened. Rotation animation will 303 // take some time and the rotation value we have got may be 304 // wrong. Framework does not have a callback for this now. 305 if (Util.getDisplayRotation(Camera.this) != mDisplayRotation 306 && isCameraIdle()) { 307 startPreview(); 308 } 309 if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) { 310 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 311 } 312 break; 313 } 314 315 case SHOW_TAP_TO_FOCUS_TOAST: { 316 showTapToFocusToast(); 317 break; 318 } 319 320 case DISMISS_TAP_TO_FOCUS_TOAST: { 321 View v = findViewById(R.id.tap_to_focus_prompt); 322 v.setVisibility(View.GONE); 323 v.setAnimation(AnimationUtils.loadAnimation(Camera.this, 324 R.anim.on_screen_hint_exit)); 325 break; 326 } 327 } 328 } 329 } 330 331 private void resetExposureCompensation() { 332 String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, 333 CameraSettings.EXPOSURE_DEFAULT_VALUE); 334 if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { 335 Editor editor = mPreferences.edit(); 336 editor.putString(CameraSettings.KEY_EXPOSURE, "0"); 337 editor.apply(); 338 if (mIndicatorControl != null) { 339 mIndicatorControl.reloadPreferences(); 340 } 341 } 342 } 343 344 private void keepMediaProviderInstance() { 345 // We want to keep a reference to MediaProvider in camera's lifecycle. 346 // TODO: Utilize mMediaProviderClient instance to replace 347 // ContentResolver calls. 348 if (mMediaProviderClient == null) { 349 mMediaProviderClient = getContentResolver() 350 .acquireContentProviderClient(MediaStore.AUTHORITY); 351 } 352 } 353 354 // Snapshots can only be taken after this is called. It should be called 355 // once only. We could have done these things in onCreate() but we want to 356 // make preview screen appear as soon as possible. 357 private void initializeFirstTime() { 358 if (mFirstTimeInitialized) return; 359 360 // Create orientation listenter. This should be done first because it 361 // takes some time to get first orientation. 362 mOrientationListener = new MyOrientationEventListener(Camera.this); 363 mOrientationListener.enable(); 364 365 // Initialize location sevice. 366 mLocationManager = (LocationManager) 367 getSystemService(Context.LOCATION_SERVICE); 368 mRecordLocation = RecordLocationPreference.get( 369 mPreferences, getContentResolver()); 370 initOnScreenIndicator(); 371 if (mRecordLocation) startReceivingLocationUpdates(); 372 373 keepMediaProviderInstance(); 374 checkStorage(); 375 376 // Initialize last picture button. 377 mContentResolver = getContentResolver(); 378 if (!mIsImageCaptureIntent) { // no thumbnail in image capture intent 379 initThumbnailButton(); 380 } 381 382 // Initialize shutter button. 383 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 384 mShutterButton.setOnShutterButtonListener(this); 385 mShutterButton.setVisibility(View.VISIBLE); 386 387 // Initialize focus UI. 388 mPreviewFrame = findViewById(R.id.camera_preview); 389 mPreviewFrame.setOnTouchListener(this); 390 mPreviewBorder = findViewById(R.id.preview_border); 391 mFocusManager.initialize((FocusRectangle) findViewById(R.id.focus_rectangle), 392 mPreviewFrame, mFaceView, this); 393 mFocusManager.initializeToneGenerator(); 394 initializeScreenBrightness(); 395 installIntentFilter(); 396 initializeZoom(); 397 // Show the tap to focus toast if this is the first start. 398 if (mFocusAreaSupported && 399 mPreferences.getBoolean(CameraSettings.KEY_TAP_TO_FOCUS_PROMPT_SHOWN, true)) { 400 // Delay the toast for one second to wait for orientation. 401 mHandler.sendEmptyMessageDelayed(SHOW_TAP_TO_FOCUS_TOAST, 1000); 402 } 403 404 mFirstTimeInitialized = true; 405 addIdleHandler(); 406 } 407 408 private void addIdleHandler() { 409 MessageQueue queue = Looper.myQueue(); 410 queue.addIdleHandler(new MessageQueue.IdleHandler() { 411 public boolean queueIdle() { 412 Storage.ensureOSXCompatible(); 413 return false; 414 } 415 }); 416 } 417 418 private void initThumbnailButton() { 419 // Load the thumbnail from the disk. 420 mThumbnail = Thumbnail.loadFrom(new File(getFilesDir(), LAST_THUMB_FILENAME)); 421 updateThumbnailButton(); 422 } 423 424 private void updateThumbnailButton() { 425 // Update last image if URI is invalid and the storage is ready. 426 if ((mThumbnail == null || !Util.isUriValid(mThumbnail.getUri(), mContentResolver)) 427 && mPicturesRemaining >= 0) { 428 mThumbnail = Thumbnail.getLastImageThumbnail(mContentResolver); 429 } 430 if (mThumbnail != null) { 431 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 432 } else { 433 mThumbnailView.setBitmap(null); 434 } 435 } 436 437 // If the activity is paused and resumed, this method will be called in 438 // onResume. 439 private void initializeSecondTime() { 440 // Start orientation listener as soon as possible because it takes 441 // some time to get first orientation. 442 mOrientationListener.enable(); 443 444 // Start location update if needed. 445 mRecordLocation = RecordLocationPreference.get( 446 mPreferences, getContentResolver()); 447 if (mRecordLocation) startReceivingLocationUpdates(); 448 449 installIntentFilter(); 450 mFocusManager.initializeToneGenerator(); 451 initializeZoom(); 452 keepMediaProviderInstance(); 453 checkStorage(); 454 455 if (!mIsImageCaptureIntent) { 456 updateThumbnailButton(); 457 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 458 } 459 } 460 461 private void initializeZoomControl() { 462 mZoomControl = (ZoomControl) findViewById(R.id.zoom_control); 463 if (!mParameters.isZoomSupported()) { 464 mZoomControl.setZoomSupported(false); 465 } 466 mZoomControl.initialize(this); 467 } 468 469 private void initializeZoom() { 470 if (!mParameters.isZoomSupported()) return; 471 mZoomMax = mParameters.getMaxZoom(); 472 mSmoothZoomSupported = mParameters.isSmoothZoomSupported(); 473 if (mZoomControl != null) { 474 mZoomControl.setZoomMax(mZoomMax); 475 mZoomControl.setZoomIndex(mParameters.getZoom()); 476 mZoomControl.setSmoothZoomSupported(mSmoothZoomSupported); 477 mZoomControl.setOnZoomChangeListener( 478 new ZoomControl.OnZoomChangedListener() { 479 // only for immediate zoom 480 @Override 481 public void onZoomValueChanged(int index) { 482 Camera.this.onZoomValueChanged(index); 483 } 484 485 // only for smooth zoom 486 @Override 487 public void onZoomStateChanged(int state) { 488 if (mPausing) return; 489 490 Log.v(TAG, "zoom picker state=" + state); 491 if (state == ZoomControl.ZOOM_IN) { 492 Camera.this.onZoomValueChanged(mZoomMax); 493 } else if (state == ZoomControl.ZOOM_OUT){ 494 Camera.this.onZoomValueChanged(0); 495 } else { 496 mTargetZoomValue = -1; 497 if (mZoomState == ZOOM_START) { 498 mZoomState = ZOOM_STOPPING; 499 mCameraDevice.stopSmoothZoom(); 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 @Override 531 public void startFaceDetection() { 532 if (mParameters.getMaxNumDetectedFaces() > 0) { 533 mFaceView = (FaceView) findViewById(R.id.face_view); 534 mFaceView.clearFaces(); 535 mFaceView.setVisibility(View.VISIBLE); 536 mFaceView.setDisplayOrientation(mDisplayOrientation); 537 CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; 538 mFaceView.setMirror(info.facing == CameraInfo.CAMERA_FACING_FRONT); 539 mFaceView.resume(); 540 mCameraDevice.setFaceDetectionListener(this); 541 mCameraDevice.startFaceDetection(); 542 } 543 } 544 545 @Override 546 public void stopFaceDetection() { 547 if (mParameters.getMaxNumDetectedFaces() > 0) { 548 mCameraDevice.setFaceDetectionListener(null); 549 mCameraDevice.stopFaceDetection(); 550 if (mFaceView != null) mFaceView.clearFaces(); 551 } 552 } 553 554 private class PopupGestureListener 555 extends GestureDetector.SimpleOnGestureListener { 556 @Override 557 public boolean onDown(MotionEvent e) { 558 // Check if the popup window is visible. 559 View popup = mIndicatorControl.getActiveSettingPopup(); 560 if (popup == null) return false; 561 562 563 // Let popup window, indicator control or preview frame handle the 564 // event by themselves. Dismiss the popup window if users touch on 565 // other areas. 566 if (!Util.pointInView(e.getX(), e.getY(), popup) 567 && !Util.pointInView(e.getX(), e.getY(), mIndicatorControl) 568 && !Util.pointInView(e.getX(), e.getY(), mPreviewFrame)) { 569 mIndicatorControl.dismissSettingPopup(); 570 // Let event fall through. 571 } 572 return false; 573 } 574 } 575 576 @Override 577 public boolean dispatchTouchEvent(MotionEvent m) { 578 // Check if the popup window should be dismissed first. 579 if (mPopupGestureDetector != null && mPopupGestureDetector.onTouchEvent(m)) { 580 return true; 581 } 582 583 return super.dispatchTouchEvent(m); 584 } 585 586 LocationListener [] mLocationListeners = new LocationListener[] { 587 new LocationListener(LocationManager.GPS_PROVIDER), 588 new LocationListener(LocationManager.NETWORK_PROVIDER) 589 }; 590 591 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 592 @Override 593 public void onReceive(Context context, Intent intent) { 594 String action = intent.getAction(); 595 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 596 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 597 || action.equals(Intent.ACTION_MEDIA_CHECKING)) { 598 checkStorage(); 599 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 600 checkStorage(); 601 if (!mIsImageCaptureIntent) { 602 updateThumbnailButton(); 603 } 604 } 605 } 606 }; 607 608 private void initOnScreenIndicator() { 609 mGpsNoSignalIndicator = findViewById(R.id.onscreen_gps_indicator_no_signal); 610 mGpsHasSignalIndicator = findViewById(R.id.onscreen_gps_indicator_on); 611 mExposureIndicator = (TextView) findViewById(R.id.onscreen_exposure_indicator); 612 } 613 614 private void showGpsOnScreenIndicator(boolean hasSignal) { 615 if (hasSignal) { 616 if (mGpsNoSignalIndicator != null) { 617 mGpsNoSignalIndicator.setVisibility(View.GONE); 618 } 619 if (mGpsHasSignalIndicator != null) { 620 mGpsHasSignalIndicator.setVisibility(View.VISIBLE); 621 } 622 } else { 623 if (mGpsNoSignalIndicator != null) { 624 mGpsNoSignalIndicator.setVisibility(View.VISIBLE); 625 } 626 if (mGpsHasSignalIndicator != null) { 627 mGpsHasSignalIndicator.setVisibility(View.GONE); 628 } 629 } 630 } 631 632 private void hideGpsOnScreenIndicator() { 633 if (mGpsNoSignalIndicator != null) mGpsNoSignalIndicator.setVisibility(View.GONE); 634 if (mGpsHasSignalIndicator != null) mGpsHasSignalIndicator.setVisibility(View.GONE); 635 } 636 637 private void updateExposureOnScreenIndicator(int value) { 638 if (mExposureIndicator == null) return; 639 640 if (value == 0) { 641 mExposureIndicator.setText(""); 642 mExposureIndicator.setVisibility(View.GONE); 643 } else { 644 float step = mParameters.getExposureCompensationStep(); 645 mFormatterArgs[0] = value * step; 646 mBuilder.delete(0, mBuilder.length()); 647 mFormatter.format("%+1.1f", mFormatterArgs); 648 String exposure = mFormatter.toString(); 649 mExposureIndicator.setText(exposure); 650 mExposureIndicator.setVisibility(View.VISIBLE); 651 } 652 } 653 654 private class LocationListener 655 implements android.location.LocationListener { 656 Location mLastLocation; 657 boolean mValid = false; 658 String mProvider; 659 660 public LocationListener(String provider) { 661 mProvider = provider; 662 mLastLocation = new Location(mProvider); 663 } 664 665 public void onLocationChanged(Location newLocation) { 666 if (newLocation.getLatitude() == 0.0 667 && newLocation.getLongitude() == 0.0) { 668 // Hack to filter out 0.0,0.0 locations 669 return; 670 } 671 // If GPS is available before start camera, we won't get status 672 // update so update GPS indicator when we receive data. 673 if (mRecordLocation 674 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 675 showGpsOnScreenIndicator(true); 676 } 677 if (!mValid) { 678 Log.d(TAG, "Got first location."); 679 } 680 mLastLocation.set(newLocation); 681 mValid = true; 682 } 683 684 public void onProviderEnabled(String provider) { 685 } 686 687 public void onProviderDisabled(String provider) { 688 mValid = false; 689 } 690 691 public void onStatusChanged( 692 String provider, int status, Bundle extras) { 693 switch(status) { 694 case LocationProvider.OUT_OF_SERVICE: 695 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 696 mValid = false; 697 if (mRecordLocation && 698 LocationManager.GPS_PROVIDER.equals(provider)) { 699 showGpsOnScreenIndicator(false); 700 } 701 break; 702 } 703 } 704 } 705 706 public Location current() { 707 return mValid ? mLastLocation : null; 708 } 709 } 710 711 private final class ShutterCallback 712 implements android.hardware.Camera.ShutterCallback { 713 public void onShutter() { 714 mShutterCallbackTime = System.currentTimeMillis(); 715 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 716 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 717 mFocusManager.onShutter(); 718 } 719 } 720 721 private final class PostViewPictureCallback implements PictureCallback { 722 public void onPictureTaken( 723 byte [] data, android.hardware.Camera camera) { 724 mPostViewPictureCallbackTime = System.currentTimeMillis(); 725 Log.v(TAG, "mShutterToPostViewCallbackTime = " 726 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 727 + "ms"); 728 } 729 } 730 731 private final class RawPictureCallback implements PictureCallback { 732 public void onPictureTaken( 733 byte [] rawData, android.hardware.Camera camera) { 734 mRawPictureCallbackTime = System.currentTimeMillis(); 735 Log.v(TAG, "mShutterToRawCallbackTime = " 736 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 737 } 738 } 739 740 private final class JpegPictureCallback implements PictureCallback { 741 Location mLocation; 742 743 public JpegPictureCallback(Location loc) { 744 mLocation = loc; 745 } 746 747 public void onPictureTaken( 748 final byte [] jpegData, final android.hardware.Camera camera) { 749 if (mPausing) { 750 return; 751 } 752 753 mJpegPictureCallbackTime = System.currentTimeMillis(); 754 // If postview callback has arrived, the captured image is displayed 755 // in postview callback. If not, the captured image is displayed in 756 // raw picture callback. 757 if (mPostViewPictureCallbackTime != 0) { 758 mShutterToPictureDisplayedTime = 759 mPostViewPictureCallbackTime - mShutterCallbackTime; 760 mPictureDisplayedToJpegCallbackTime = 761 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 762 } else { 763 mShutterToPictureDisplayedTime = 764 mRawPictureCallbackTime - mShutterCallbackTime; 765 mPictureDisplayedToJpegCallbackTime = 766 mJpegPictureCallbackTime - mRawPictureCallbackTime; 767 } 768 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 769 + mPictureDisplayedToJpegCallbackTime + "ms"); 770 771 if (!mIsImageCaptureIntent) { 772 enableCameraControls(true); 773 774 // We want to show the taken picture for a while, so we wait 775 // for at least 1.2 second before restarting the preview. 776 long delay = 1200 - mPictureDisplayedToJpegCallbackTime; 777 if (delay < 0) { 778 startPreview(); 779 } else { 780 mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay); 781 } 782 } 783 storeImage(jpegData, camera, mLocation); 784 785 // Check this in advance of each shot so we don't add to shutter 786 // latency. It's true that someone else could write to the SD card in 787 // the mean time and fill it, but that could have happened between the 788 // shutter press and saving the JPEG too. 789 checkStorage(); 790 791 if (!mHandler.hasMessages(RESTART_PREVIEW)) { 792 long now = System.currentTimeMillis(); 793 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 794 Log.v(TAG, "mJpegCallbackFinishTime = " 795 + mJpegCallbackFinishTime + "ms"); 796 mJpegPictureCallbackTime = 0; 797 } 798 } 799 } 800 801 private final class AutoFocusCallback 802 implements android.hardware.Camera.AutoFocusCallback { 803 public void onAutoFocus( 804 boolean focused, android.hardware.Camera camera) { 805 if (mPausing) return; 806 807 mAutoFocusTime = System.currentTimeMillis() - mFocusStartTime; 808 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 809 mFocusManager.onAutoFocus(focused); 810 // If focus completes and the snapshot is not started, enable the 811 // controls. 812 if (mFocusManager.isFocusCompleted()) { 813 enableCameraControls(true); 814 } 815 } 816 } 817 818 private final class ZoomListener 819 implements android.hardware.Camera.OnZoomChangeListener { 820 @Override 821 public void onZoomChange( 822 int value, boolean stopped, android.hardware.Camera camera) { 823 Log.v(TAG, "Zoom changed: value=" + value + ". stopped="+ stopped); 824 mZoomValue = value; 825 826 // Update the UI when we get zoom value. 827 if (mZoomControl != null) mZoomControl.setZoomIndex(value); 828 829 // Keep mParameters up to date. We do not getParameter again in 830 // takePicture. If we do not do this, wrong zoom value will be set. 831 mParameters.setZoom(value); 832 833 if (stopped && mZoomState != ZOOM_STOPPED) { 834 if (mTargetZoomValue != -1 && value != mTargetZoomValue) { 835 mCameraDevice.startSmoothZoom(mTargetZoomValue); 836 mZoomState = ZOOM_START; 837 } else { 838 mZoomState = ZOOM_STOPPED; 839 } 840 } 841 } 842 } 843 844 public void storeImage(final byte[] data, 845 android.hardware.Camera camera, Location loc) { 846 if (!mIsImageCaptureIntent) { 847 long dateTaken = System.currentTimeMillis(); 848 String title = createName(dateTaken); 849 int orientation = Exif.getOrientation(data); 850 Uri uri = Storage.addImage(mContentResolver, title, dateTaken, 851 loc, orientation, data); 852 if (uri != null) { 853 // Create a thumbnail whose size is smaller than half of the surface view. 854 int ratio = (int) Math.ceil((double) mParameters.getPictureSize().width 855 / (mPreviewFrame.getWidth() / 2)); 856 int inSampleSize = Util.nextPowerOf2(ratio); 857 mThumbnail = Thumbnail.createThumbnail(data, orientation, inSampleSize, uri); 858 if (mThumbnail != null) { 859 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 860 } 861 862 sendBroadcast(new Intent(android.hardware.Camera.ACTION_NEW_PICTURE, uri)); 863 // Keep compatibility 864 sendBroadcast(new Intent("com.android.camera.NEW_PICTURE", uri)); 865 } 866 } else { 867 mJpegImageData = data; 868 if (!mQuickCapture) { 869 showPostCaptureAlert(); 870 } else { 871 doAttach(); 872 } 873 } 874 } 875 876 @Override 877 public boolean capture() { 878 // If we are already in the middle of taking a snapshot then ignore. 879 if (mCameraState == SNAPSHOT_IN_PROGRESS || mCameraDevice == null) { 880 return false; 881 } 882 mCaptureStartTime = System.currentTimeMillis(); 883 mPostViewPictureCallbackTime = 0; 884 enableCameraControls(false); 885 mJpegImageData = null; 886 887 // See android.hardware.Camera.Parameters.setRotation for 888 // documentation. 889 int rotation = 0; 890 if (mOrientation != OrientationEventListener.ORIENTATION_UNKNOWN) { 891 CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; 892 if (info.facing == CameraInfo.CAMERA_FACING_FRONT) { 893 rotation = (info.orientation - mOrientation + 360) % 360; 894 } else { // back-facing camera 895 rotation = (info.orientation + mOrientation) % 360; 896 } 897 } 898 mParameters.setRotation(rotation); 899 900 // Clear previous GPS location from the parameters. 901 mParameters.removeGpsData(); 902 903 // We always encode GpsTimeStamp 904 mParameters.setGpsTimestamp(System.currentTimeMillis() / 1000); 905 906 // Set GPS location. 907 Location loc = mRecordLocation ? getCurrentLocation() : null; 908 if (loc != null) { 909 double lat = loc.getLatitude(); 910 double lon = loc.getLongitude(); 911 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 912 913 if (hasLatLon) { 914 Log.d(TAG, "Set gps location"); 915 mParameters.setGpsLatitude(lat); 916 mParameters.setGpsLongitude(lon); 917 mParameters.setGpsProcessingMethod(loc.getProvider().toUpperCase()); 918 if (loc.hasAltitude()) { 919 mParameters.setGpsAltitude(loc.getAltitude()); 920 } else { 921 // for NETWORK_PROVIDER location provider, we may have 922 // no altitude information, but the driver needs it, so 923 // we fake one. 924 mParameters.setGpsAltitude(0); 925 } 926 if (loc.getTime() != 0) { 927 // Location.getTime() is UTC in milliseconds. 928 // gps-timestamp is UTC in seconds. 929 long utcTimeSeconds = loc.getTime() / 1000; 930 mParameters.setGpsTimestamp(utcTimeSeconds); 931 } 932 } else { 933 loc = null; 934 } 935 } 936 937 mCameraDevice.setParameters(mParameters); 938 939 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 940 mPostViewPictureCallback, new JpegPictureCallback(loc)); 941 mCameraState = SNAPSHOT_IN_PROGRESS; 942 return true; 943 } 944 945 @Override 946 public void setFocusParameters() { 947 setCameraParameters(UPDATE_PARAM_PREFERENCE); 948 } 949 950 private boolean saveDataToFile(String filePath, byte[] data) { 951 FileOutputStream f = null; 952 try { 953 f = new FileOutputStream(filePath); 954 f.write(data); 955 } catch (IOException e) { 956 return false; 957 } finally { 958 Util.closeSilently(f); 959 } 960 return true; 961 } 962 963 private String createName(long dateTaken) { 964 Date date = new Date(dateTaken); 965 SimpleDateFormat dateFormat = new SimpleDateFormat( 966 getString(R.string.image_file_name_format)); 967 968 return dateFormat.format(date); 969 } 970 971 @Override 972 public void onCreate(Bundle icicle) { 973 super.onCreate(icicle); 974 975 mIsImageCaptureIntent = isImageCaptureIntent(); 976 if (mIsImageCaptureIntent) { 977 setContentView(R.layout.camera_attach); 978 } else { 979 setContentView(R.layout.camera); 980 } 981 mThumbnailView = (RotateImageView) findViewById(R.id.thumbnail); 982 983 mPreferences = new ComboPreferences(this); 984 CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal()); 985 mFocusManager = new FocusManager(mPreferences, 986 getString(R.string.pref_camera_focusmode_default)); 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 /* 1006 * To reduce startup time, we start the preview in another thread. 1007 * We make sure the preview is started at the end of onCreate. 1008 */ 1009 Thread startPreviewThread = new Thread(new Runnable() { 1010 public void run() { 1011 try { 1012 mCameraDevice = Util.openCamera(Camera.this, mCameraId); 1013 initializeCapabilities(); 1014 startPreview(); 1015 } catch (CameraHardwareException e) { 1016 mOpenCameraFail = true; 1017 } catch (CameraDisabledException e) { 1018 mCameraDisabled = true; 1019 } 1020 } 1021 }); 1022 startPreviewThread.start(); 1023 1024 // don't set mSurfaceHolder here. We have it set ONLY within 1025 // surfaceChanged / surfaceDestroyed, other parts of the code 1026 // assume that when it is set, the surface is also set. 1027 SurfaceView preview = (SurfaceView) findViewById(R.id.camera_preview); 1028 SurfaceHolder holder = preview.getHolder(); 1029 holder.addCallback(this); 1030 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 1031 1032 if (mIsImageCaptureIntent) { 1033 setupCaptureParams(); 1034 1035 findViewById(R.id.review_control).setVisibility(View.VISIBLE); 1036 } else { 1037 mModePicker = (ModePicker) findViewById(R.id.mode_picker); 1038 mModePicker.setVisibility(View.VISIBLE); 1039 mModePicker.setOnModeChangeListener(this); 1040 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 1041 } 1042 1043 // Make sure preview is started. 1044 try { 1045 startPreviewThread.join(); 1046 if (mOpenCameraFail) { 1047 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1048 return; 1049 } else if (mCameraDisabled) { 1050 Util.showErrorAndFinish(this, R.string.camera_disabled); 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 initializeZoomControl(); 1063 initializeIndicatorControl(); 1064 } 1065 1066 private void overrideCameraSettings(final String flashMode, 1067 final String whiteBalance, final String focusMode) { 1068 if (mIndicatorControl != null) { 1069 mIndicatorControl.overrideSettings( 1070 CameraSettings.KEY_FLASH_MODE, flashMode, 1071 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 1072 CameraSettings.KEY_FOCUS_MODE, focusMode); 1073 } 1074 } 1075 1076 private void updateSceneModeUI() { 1077 // If scene mode is set, we cannot set flash mode, white balance, and 1078 // focus mode, instead, we read it from driver 1079 if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1080 overrideCameraSettings(mParameters.getFlashMode(), 1081 mParameters.getWhiteBalance(), mParameters.getFocusMode()); 1082 } else { 1083 overrideCameraSettings(null, null, null); 1084 } 1085 } 1086 1087 private void loadCameraPreferences() { 1088 CameraSettings settings = new CameraSettings(this, mInitialParams, 1089 mCameraId, CameraHolder.instance().getCameraInfo()); 1090 mPreferenceGroup = settings.getPreferenceGroup(R.xml.camera_preferences); 1091 } 1092 1093 private void initializeIndicatorControl() { 1094 // setting the indicator buttons. 1095 mIndicatorControl = (IndicatorControl) findViewById(R.id.indicator_control); 1096 if (mIndicatorControl == null) return; 1097 loadCameraPreferences(); 1098 final String[] SETTING_KEYS = { 1099 CameraSettings.KEY_WHITE_BALANCE, 1100 CameraSettings.KEY_SCENE_MODE}; 1101 final String[] OTHER_SETTING_KEYS = { 1102 CameraSettings.KEY_RECORD_LOCATION, 1103 CameraSettings.KEY_FOCUS_MODE, 1104 CameraSettings.KEY_EXPOSURE, 1105 CameraSettings.KEY_PICTURE_SIZE}; 1106 1107 CameraPicker.setImageResourceId(R.drawable.ic_switch_photo_facing_holo_light); 1108 mIndicatorControl.initialize(this, mPreferenceGroup, 1109 CameraSettings.KEY_FLASH_MODE, SETTING_KEYS, OTHER_SETTING_KEYS); 1110 mIndicatorControl.setListener(this); 1111 } 1112 1113 private boolean collapseCameraControls() { 1114 if (mIndicatorControl != null && mIndicatorControl.dismissSettingPopup()) { 1115 return true; 1116 } 1117 return false; 1118 } 1119 1120 private void enableCameraControls(boolean enable) { 1121 if (mIndicatorControl != null) mIndicatorControl.setEnabled(enable); 1122 if (mModePicker != null) mModePicker.setEnabled(enable); 1123 if (mZoomControl != null) mZoomControl.setEnabled(enable); 1124 } 1125 1126 public static int roundOrientation(int orientation) { 1127 return ((orientation + 45) / 90 * 90) % 360; 1128 } 1129 1130 private class MyOrientationEventListener 1131 extends OrientationEventListener { 1132 public MyOrientationEventListener(Context context) { 1133 super(context); 1134 } 1135 1136 @Override 1137 public void onOrientationChanged(int orientation) { 1138 // We keep the last known orientation. So if the user first orient 1139 // the camera then point the camera to floor or sky, we still have 1140 // the correct orientation. 1141 if (orientation == ORIENTATION_UNKNOWN) return; 1142 mOrientation = roundOrientation(orientation); 1143 // When the screen is unlocked, display rotation may change. Always 1144 // calculate the up-to-date orientationCompensation. 1145 int orientationCompensation = mOrientation 1146 + Util.getDisplayRotation(Camera.this); 1147 if (mOrientationCompensation != orientationCompensation) { 1148 mOrientationCompensation = orientationCompensation; 1149 setOrientationIndicator(mOrientationCompensation); 1150 } 1151 1152 // Show the toast after getting the first orientation changed. 1153 if (mHandler.hasMessages(SHOW_TAP_TO_FOCUS_TOAST)) { 1154 mHandler.removeMessages(SHOW_TAP_TO_FOCUS_TOAST); 1155 showTapToFocusToast(); 1156 } 1157 } 1158 } 1159 1160 private void setOrientationIndicator(int degree) { 1161 if (mThumbnailView != null) mThumbnailView.setDegree(degree); 1162 if (mModePicker != null) mModePicker.setDegree(degree); 1163 if (mSharePopup != null) mSharePopup.setOrientation(degree); 1164 if (mIndicatorControl != null) mIndicatorControl.setDegree(degree); 1165 if (mZoomControl != null) mZoomControl.setDegree(degree); 1166 } 1167 1168 @Override 1169 public void onStop() { 1170 super.onStop(); 1171 if (mMediaProviderClient != null) { 1172 mMediaProviderClient.release(); 1173 mMediaProviderClient = null; 1174 } 1175 } 1176 1177 private void checkStorage() { 1178 mPicturesRemaining = Storage.getAvailableSpace(); 1179 if (mPicturesRemaining > 0) { 1180 mPicturesRemaining /= 1500000; 1181 } 1182 updateStorageHint(); 1183 } 1184 1185 @OnClickAttr 1186 public void onThumbnailClicked(View v) { 1187 if (isCameraIdle() && mThumbnail != null) { 1188 showSharePopup(); 1189 } 1190 } 1191 1192 @OnClickAttr 1193 public void onRetakeButtonClicked(View v) { 1194 hidePostCaptureAlert(); 1195 startPreview(); 1196 } 1197 1198 @OnClickAttr 1199 public void onDoneButtonClicked(View v) { 1200 doAttach(); 1201 } 1202 1203 @OnClickAttr 1204 public void onCancelButtonClicked(View v) { 1205 doCancel(); 1206 } 1207 1208 private void doAttach() { 1209 if (mPausing) { 1210 return; 1211 } 1212 1213 byte[] data = mJpegImageData; 1214 1215 if (mCropValue == null) { 1216 // First handle the no crop case -- just return the value. If the 1217 // caller specifies a "save uri" then write the data to it's 1218 // stream. Otherwise, pass back a scaled down version of the bitmap 1219 // directly in the extras. 1220 if (mSaveUri != null) { 1221 OutputStream outputStream = null; 1222 try { 1223 outputStream = mContentResolver.openOutputStream(mSaveUri); 1224 outputStream.write(data); 1225 outputStream.close(); 1226 1227 setResultEx(RESULT_OK); 1228 finish(); 1229 } catch (IOException ex) { 1230 // ignore exception 1231 } finally { 1232 Util.closeSilently(outputStream); 1233 } 1234 } else { 1235 int orientation = Exif.getOrientation(data); 1236 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1237 bitmap = Util.rotate(bitmap, orientation); 1238 setResultEx(RESULT_OK, 1239 new Intent("inline-data").putExtra("data", bitmap)); 1240 finish(); 1241 } 1242 } else { 1243 // Save the image to a temp file and invoke the cropper 1244 Uri tempUri = null; 1245 FileOutputStream tempStream = null; 1246 try { 1247 File path = getFileStreamPath(sTempCropFilename); 1248 path.delete(); 1249 tempStream = openFileOutput(sTempCropFilename, 0); 1250 tempStream.write(data); 1251 tempStream.close(); 1252 tempUri = Uri.fromFile(path); 1253 } catch (FileNotFoundException ex) { 1254 setResultEx(Activity.RESULT_CANCELED); 1255 finish(); 1256 return; 1257 } catch (IOException ex) { 1258 setResultEx(Activity.RESULT_CANCELED); 1259 finish(); 1260 return; 1261 } finally { 1262 Util.closeSilently(tempStream); 1263 } 1264 1265 Bundle newExtras = new Bundle(); 1266 if (mCropValue.equals("circle")) { 1267 newExtras.putString("circleCrop", "true"); 1268 } 1269 if (mSaveUri != null) { 1270 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1271 } else { 1272 newExtras.putBoolean("return-data", true); 1273 } 1274 1275 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1276 1277 cropIntent.setData(tempUri); 1278 cropIntent.putExtras(newExtras); 1279 1280 startActivityForResult(cropIntent, CROP_MSG); 1281 } 1282 } 1283 1284 private void doCancel() { 1285 setResultEx(RESULT_CANCELED, new Intent()); 1286 finish(); 1287 } 1288 1289 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1290 switch (button.getId()) { 1291 case R.id.shutter_button: 1292 doFocus(pressed); 1293 break; 1294 } 1295 } 1296 1297 public void onShutterButtonClick(ShutterButton button) { 1298 switch (button.getId()) { 1299 case R.id.shutter_button: 1300 doSnap(); 1301 break; 1302 } 1303 } 1304 1305 private OnScreenHint mStorageHint; 1306 1307 private void updateStorageHint() { 1308 String noStorageText = null; 1309 1310 if (mPicturesRemaining == Storage.UNAVAILABLE) { 1311 noStorageText = getString(R.string.no_storage); 1312 } else if (mPicturesRemaining == Storage.PREPARING) { 1313 noStorageText = getString(R.string.preparing_sd); 1314 } else if (mPicturesRemaining == Storage.UNKNOWN_SIZE) { 1315 noStorageText = getString(R.string.access_sd_fail); 1316 } else if (mPicturesRemaining < 1L) { 1317 noStorageText = getString(R.string.not_enough_space); 1318 } 1319 1320 if (noStorageText != null) { 1321 if (mStorageHint == null) { 1322 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1323 } else { 1324 mStorageHint.setText(noStorageText); 1325 } 1326 mStorageHint.show(); 1327 } else if (mStorageHint != null) { 1328 mStorageHint.cancel(); 1329 mStorageHint = null; 1330 } 1331 } 1332 1333 private void installIntentFilter() { 1334 // install an intent filter to receive SD card related events. 1335 IntentFilter intentFilter = 1336 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1337 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1338 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1339 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1340 intentFilter.addDataScheme("file"); 1341 registerReceiver(mReceiver, intentFilter); 1342 mDidRegister = true; 1343 } 1344 1345 private void initializeScreenBrightness() { 1346 Window win = getWindow(); 1347 // Overright the brightness settings if it is automatic 1348 int mode = Settings.System.getInt( 1349 getContentResolver(), 1350 Settings.System.SCREEN_BRIGHTNESS_MODE, 1351 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); 1352 if (mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC) { 1353 WindowManager.LayoutParams winParams = win.getAttributes(); 1354 winParams.screenBrightness = DEFAULT_CAMERA_BRIGHTNESS; 1355 win.setAttributes(winParams); 1356 } 1357 } 1358 1359 @Override 1360 protected void onResume() { 1361 super.onResume(); 1362 mPausing = false; 1363 if (mOpenCameraFail || mCameraDisabled) return; 1364 1365 mJpegPictureCallbackTime = 0; 1366 mZoomValue = 0; 1367 1368 // Start the preview if it is not started. 1369 if (mCameraState == PREVIEW_STOPPED) { 1370 try { 1371 mCameraDevice = Util.openCamera(this, mCameraId); 1372 initializeCapabilities(); 1373 resetExposureCompensation(); 1374 startPreview(); 1375 } catch(CameraHardwareException e) { 1376 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1377 return; 1378 } catch(CameraDisabledException e) { 1379 Util.showErrorAndFinish(this, R.string.camera_disabled); 1380 return; 1381 } 1382 } 1383 1384 if (mSurfaceHolder != null) { 1385 // If first time initialization is not finished, put it in the 1386 // message queue. 1387 if (!mFirstTimeInitialized) { 1388 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1389 } else { 1390 initializeSecondTime(); 1391 } 1392 } 1393 keepScreenOnAwhile(); 1394 1395 if (mCameraState == IDLE) { 1396 mOnResumeTime = SystemClock.uptimeMillis(); 1397 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 1398 } 1399 } 1400 1401 @Override 1402 protected void onPause() { 1403 mPausing = true; 1404 stopPreview(); 1405 // Close the camera now because other activities may need to use it. 1406 closeCamera(); 1407 resetScreenOn(); 1408 1409 // Clear UI. 1410 collapseCameraControls(); 1411 if (mSharePopup != null) mSharePopup.dismiss(); 1412 if (mFaceView != null) mFaceView.clearFaces(); 1413 1414 if (mFirstTimeInitialized) { 1415 mOrientationListener.disable(); 1416 if (!mIsImageCaptureIntent) { 1417 if (mThumbnail != null) { 1418 mThumbnail.saveTo(new File(getFilesDir(), LAST_THUMB_FILENAME)); 1419 } 1420 } 1421 hidePostCaptureAlert(); 1422 } 1423 1424 if (mDidRegister) { 1425 unregisterReceiver(mReceiver); 1426 mDidRegister = false; 1427 } 1428 stopReceivingLocationUpdates(); 1429 updateExposureOnScreenIndicator(0); 1430 1431 mFocusManager.releaseToneGenerator(); 1432 1433 if (mStorageHint != null) { 1434 mStorageHint.cancel(); 1435 mStorageHint = null; 1436 } 1437 1438 // If we are in an image capture intent and has taken 1439 // a picture, we just clear it in onPause. 1440 mJpegImageData = null; 1441 1442 // Remove the messages in the event queue. 1443 mHandler.removeMessages(RESTART_PREVIEW); 1444 mHandler.removeMessages(FIRST_TIME_INIT); 1445 mHandler.removeMessages(CHECK_DISPLAY_ROTATION); 1446 mFocusManager.removeMessages(); 1447 1448 super.onPause(); 1449 } 1450 1451 @Override 1452 protected void onActivityResult( 1453 int requestCode, int resultCode, Intent data) { 1454 switch (requestCode) { 1455 case CROP_MSG: { 1456 Intent intent = new Intent(); 1457 if (data != null) { 1458 Bundle extras = data.getExtras(); 1459 if (extras != null) { 1460 intent.putExtras(extras); 1461 } 1462 } 1463 setResultEx(resultCode, intent); 1464 finish(); 1465 1466 File path = getFileStreamPath(sTempCropFilename); 1467 path.delete(); 1468 1469 break; 1470 } 1471 } 1472 } 1473 1474 private boolean canTakePicture() { 1475 return isCameraIdle() && (mPicturesRemaining > 0); 1476 } 1477 1478 @Override 1479 public void autoFocus() { 1480 mFocusStartTime = System.currentTimeMillis(); 1481 mCameraDevice.autoFocus(mAutoFocusCallback); 1482 mCameraState = FOCUSING; 1483 enableCameraControls(false); 1484 } 1485 1486 @Override 1487 public void cancelAutoFocus() { 1488 mCameraDevice.cancelAutoFocus(); 1489 mCameraState = IDLE; 1490 enableCameraControls(true); 1491 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1492 } 1493 1494 // Preview area is touched. Handle touch focus. 1495 @Override 1496 public boolean onTouch(View v, MotionEvent e) { 1497 if (mPausing || !mFirstTimeInitialized || mCameraState == SNAPSHOT_IN_PROGRESS) { 1498 return false; 1499 } 1500 1501 // Do not trigger touch focus if popup window is opened. 1502 if (collapseCameraControls()) return false; 1503 1504 // Check if metering area or focus area is supported. 1505 if (!mFocusAreaSupported && !mMeteringAreaSupported) return false; 1506 1507 return mFocusManager.onTouch(e); 1508 } 1509 1510 @Override 1511 public void onBackPressed() { 1512 if (!isCameraIdle()) { 1513 // ignore backs while we're taking a picture 1514 return; 1515 } else if (!collapseCameraControls()) { 1516 super.onBackPressed(); 1517 } 1518 } 1519 1520 @Override 1521 public boolean onKeyDown(int keyCode, KeyEvent event) { 1522 switch (keyCode) { 1523 case KeyEvent.KEYCODE_FOCUS: 1524 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1525 doFocus(true); 1526 } 1527 return true; 1528 case KeyEvent.KEYCODE_CAMERA: 1529 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1530 doSnap(); 1531 } 1532 return true; 1533 case KeyEvent.KEYCODE_DPAD_CENTER: 1534 // If we get a dpad center event without any focused view, move 1535 // the focus to the shutter button and press it. 1536 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1537 // Start auto-focus immediately to reduce shutter lag. After 1538 // the shutter button gets the focus, doFocus() will be 1539 // called again but it is fine. 1540 if (collapseCameraControls()) return true; 1541 doFocus(true); 1542 if (mShutterButton.isInTouchMode()) { 1543 mShutterButton.requestFocusFromTouch(); 1544 } else { 1545 mShutterButton.requestFocus(); 1546 } 1547 mShutterButton.setPressed(true); 1548 } 1549 return true; 1550 } 1551 1552 return super.onKeyDown(keyCode, event); 1553 } 1554 1555 @Override 1556 public boolean onKeyUp(int keyCode, KeyEvent event) { 1557 switch (keyCode) { 1558 case KeyEvent.KEYCODE_FOCUS: 1559 if (mFirstTimeInitialized) { 1560 doFocus(false); 1561 } 1562 return true; 1563 } 1564 return super.onKeyUp(keyCode, event); 1565 } 1566 1567 private void doSnap() { 1568 if (mPausing || collapseCameraControls()) return; 1569 1570 Log.v(TAG, "doSnap: mCameraState=" + mCameraState); 1571 mFocusManager.doSnap(); 1572 } 1573 1574 private void doFocus(boolean pressed) { 1575 if (mPausing || collapseCameraControls()) return; 1576 1577 // Do not do focus if there is not enough storage. 1578 if (pressed && !canTakePicture()) return; 1579 1580 mFocusManager.doFocus(pressed); 1581 } 1582 1583 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1584 // Make sure we have a surface in the holder before proceeding. 1585 if (holder.getSurface() == null) { 1586 Log.d(TAG, "holder.getSurface() == null"); 1587 return; 1588 } 1589 1590 Log.v(TAG, "surfaceChanged. w=" + w + ". h=" + h); 1591 1592 // We need to save the holder for later use, even when the mCameraDevice 1593 // is null. This could happen if onResume() is invoked after this 1594 // function. 1595 mSurfaceHolder = holder; 1596 1597 // The mCameraDevice will be null if it fails to connect to the camera 1598 // hardware. In this case we will show a dialog and then finish the 1599 // activity, so it's OK to ignore it. 1600 if (mCameraDevice == null) return; 1601 1602 // Sometimes surfaceChanged is called after onPause or before onResume. 1603 // Ignore it. 1604 if (mPausing || isFinishing()) return; 1605 1606 // Set preview display if the surface is being created. Preview was 1607 // already started. Also restart the preview if display rotation has 1608 // changed. Sometimes this happens when the device is held in portrait 1609 // and camera app is opened. Rotation animation takes some time and 1610 // display rotation in onCreate may not be what we want. 1611 if (mCameraState != PREVIEW_STOPPED 1612 && (Util.getDisplayRotation(this) == mDisplayRotation) 1613 && holder.isCreating()) { 1614 // Set preview display if the surface is being created and preview 1615 // was already started. That means preview display was set to null 1616 // and we need to set it now. 1617 setPreviewDisplay(holder); 1618 } else { 1619 // 1. Restart the preview if the size of surface was changed. The 1620 // framework may not support changing preview display on the fly. 1621 // 2. Start the preview now if surface was destroyed and preview 1622 // stopped. 1623 startPreview(); 1624 } 1625 1626 // If first time initialization is not finished, send a message to do 1627 // it later. We want to finish surfaceChanged as soon as possible to let 1628 // user see preview first. 1629 if (!mFirstTimeInitialized) { 1630 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1631 } else { 1632 initializeSecondTime(); 1633 } 1634 } 1635 1636 public void surfaceCreated(SurfaceHolder holder) { 1637 } 1638 1639 public void surfaceDestroyed(SurfaceHolder holder) { 1640 stopPreview(); 1641 mSurfaceHolder = null; 1642 } 1643 1644 private void closeCamera() { 1645 if (mCameraDevice != null) { 1646 CameraHolder.instance().release(); 1647 mCameraDevice.setZoomChangeListener(null); 1648 mCameraDevice.setFaceDetectionListener(null); 1649 mCameraDevice = null; 1650 mCameraState = PREVIEW_STOPPED; 1651 mFocusManager.onCameraReleased(); 1652 } 1653 } 1654 1655 private void setPreviewDisplay(SurfaceHolder holder) { 1656 try { 1657 mCameraDevice.setPreviewDisplay(holder); 1658 } catch (Throwable ex) { 1659 closeCamera(); 1660 throw new RuntimeException("setPreviewDisplay failed", ex); 1661 } 1662 } 1663 1664 private void startPreview() { 1665 if (mPausing || isFinishing()) return; 1666 1667 mFocusManager.resetTouchFocus(); 1668 1669 mCameraDevice.setErrorCallback(mErrorCallback); 1670 1671 // If we're previewing already, stop the preview first (this will blank 1672 // the screen). 1673 if (mCameraState != PREVIEW_STOPPED) stopPreview(); 1674 1675 setPreviewDisplay(mSurfaceHolder); 1676 mDisplayRotation = Util.getDisplayRotation(this); 1677 mDisplayOrientation = Util.getDisplayOrientation(mDisplayRotation, mCameraId); 1678 mCameraDevice.setDisplayOrientation(mDisplayOrientation); 1679 if (mFaceView != null) { 1680 mFaceView.setDisplayOrientation(mDisplayOrientation); 1681 } 1682 setCameraParameters(UPDATE_PARAM_ALL); 1683 1684 try { 1685 Log.v(TAG, "startPreview"); 1686 mCameraDevice.startPreview(); 1687 } catch (Throwable ex) { 1688 closeCamera(); 1689 throw new RuntimeException("startPreview failed", ex); 1690 } 1691 1692 startFaceDetection(); 1693 mZoomState = ZOOM_STOPPED; 1694 mCameraState = IDLE; 1695 mFocusManager.onPreviewStarted(); 1696 } 1697 1698 private void stopPreview() { 1699 if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) { 1700 Log.v(TAG, "stopPreview"); 1701 mCameraDevice.stopPreview(); 1702 } 1703 mCameraState = PREVIEW_STOPPED; 1704 mFocusManager.onPreviewStopped(); 1705 } 1706 1707 private static boolean isSupported(String value, List<String> supported) { 1708 return supported == null ? false : supported.indexOf(value) >= 0; 1709 } 1710 1711 private void updateCameraParametersInitialize() { 1712 // Reset preview frame rate to the maximum because it may be lowered by 1713 // video camera application. 1714 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1715 if (frameRates != null) { 1716 Integer max = Collections.max(frameRates); 1717 mParameters.setPreviewFrameRate(max); 1718 } 1719 1720 mParameters.setRecordingHint(false); 1721 } 1722 1723 private void updateCameraParametersZoom() { 1724 // Set zoom. 1725 if (mParameters.isZoomSupported()) { 1726 mParameters.setZoom(mZoomValue); 1727 } 1728 } 1729 1730 private void updateCameraParametersPreference() { 1731 if (mFocusAreaSupported) { 1732 mParameters.setFocusAreas(mFocusManager.getTapArea()); 1733 } 1734 1735 if (mMeteringAreaSupported) { 1736 // Use the same area for focus and metering. 1737 mParameters.setMeteringAreas(mFocusManager.getTapArea()); 1738 } 1739 1740 // Set picture size. 1741 String pictureSize = mPreferences.getString( 1742 CameraSettings.KEY_PICTURE_SIZE, null); 1743 if (pictureSize == null) { 1744 CameraSettings.initialCameraPictureSize(this, mParameters); 1745 } else { 1746 List<Size> supported = mParameters.getSupportedPictureSizes(); 1747 CameraSettings.setCameraPictureSize( 1748 pictureSize, supported, mParameters); 1749 } 1750 1751 // Set the preview frame aspect ratio according to the picture size. 1752 Size size = mParameters.getPictureSize(); 1753 PreviewFrameLayout frameLayout = 1754 (PreviewFrameLayout) findViewById(R.id.frame_layout); 1755 frameLayout.setAspectRatio((double) size.width / size.height); 1756 1757 // Set a preview size that is closest to the viewfinder height and has 1758 // the right aspect ratio. 1759 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1760 Size optimalSize = Util.getOptimalPreviewSize(this, 1761 sizes, (double) size.width / size.height); 1762 Size original = mParameters.getPreviewSize(); 1763 if (!original.equals(optimalSize)) { 1764 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1765 1766 // Zoom related settings will be changed for different preview 1767 // sizes, so set and read the parameters to get lastest values 1768 mCameraDevice.setParameters(mParameters); 1769 mParameters = mCameraDevice.getParameters(); 1770 } 1771 Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height); 1772 1773 // Since change scene mode may change supported values, 1774 // Set scene mode first, 1775 mSceneMode = mPreferences.getString( 1776 CameraSettings.KEY_SCENE_MODE, 1777 getString(R.string.pref_camera_scenemode_default)); 1778 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 1779 if (!mParameters.getSceneMode().equals(mSceneMode)) { 1780 mParameters.setSceneMode(mSceneMode); 1781 mCameraDevice.setParameters(mParameters); 1782 1783 // Setting scene mode will change the settings of flash mode, 1784 // white balance, and focus mode. Here we read back the 1785 // parameters, so we can know those settings. 1786 mParameters = mCameraDevice.getParameters(); 1787 } 1788 } else { 1789 mSceneMode = mParameters.getSceneMode(); 1790 if (mSceneMode == null) { 1791 mSceneMode = Parameters.SCENE_MODE_AUTO; 1792 } 1793 } 1794 1795 // Set JPEG quality. 1796 int jpegQuality = CameraProfile.getJpegEncodingQualityParameter(mCameraId, 1797 CameraProfile.QUALITY_HIGH); 1798 mParameters.setJpegQuality(jpegQuality); 1799 1800 // For the following settings, we need to check if the settings are 1801 // still supported by latest driver, if not, ignore the settings. 1802 1803 // Set exposure compensation 1804 int value = CameraSettings.readExposure(mPreferences); 1805 int max = mParameters.getMaxExposureCompensation(); 1806 int min = mParameters.getMinExposureCompensation(); 1807 if (value >= min && value <= max) { 1808 mParameters.setExposureCompensation(value); 1809 } else { 1810 Log.w(TAG, "invalid exposure range: " + value); 1811 } 1812 1813 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1814 // Set flash mode. 1815 String flashMode = mPreferences.getString( 1816 CameraSettings.KEY_FLASH_MODE, 1817 getString(R.string.pref_camera_flashmode_default)); 1818 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 1819 if (isSupported(flashMode, supportedFlash)) { 1820 mParameters.setFlashMode(flashMode); 1821 } else { 1822 flashMode = mParameters.getFlashMode(); 1823 if (flashMode == null) { 1824 flashMode = getString( 1825 R.string.pref_camera_flashmode_no_flash); 1826 } 1827 } 1828 1829 // Set white balance parameter. 1830 String whiteBalance = mPreferences.getString( 1831 CameraSettings.KEY_WHITE_BALANCE, 1832 getString(R.string.pref_camera_whitebalance_default)); 1833 if (isSupported(whiteBalance, 1834 mParameters.getSupportedWhiteBalance())) { 1835 mParameters.setWhiteBalance(whiteBalance); 1836 } else { 1837 whiteBalance = mParameters.getWhiteBalance(); 1838 if (whiteBalance == null) { 1839 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 1840 } 1841 } 1842 1843 // Set focus mode. 1844 mFocusManager.overrideFocusMode(null); 1845 mParameters.setFocusMode(mFocusManager.getFocusMode()); 1846 } else { 1847 mFocusManager.overrideFocusMode(mParameters.getFocusMode()); 1848 } 1849 } 1850 1851 // We separate the parameters into several subsets, so we can update only 1852 // the subsets actually need updating. The PREFERENCE set needs extra 1853 // locking because the preference can be changed from GLThread as well. 1854 private void setCameraParameters(int updateSet) { 1855 mParameters = mCameraDevice.getParameters(); 1856 1857 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 1858 updateCameraParametersInitialize(); 1859 } 1860 1861 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 1862 updateCameraParametersZoom(); 1863 } 1864 1865 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 1866 updateCameraParametersPreference(); 1867 } 1868 1869 mCameraDevice.setParameters(mParameters); 1870 } 1871 1872 // If the Camera is idle, update the parameters immediately, otherwise 1873 // accumulate them in mUpdateSet and update later. 1874 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 1875 mUpdateSet |= additionalUpdateSet; 1876 if (mCameraDevice == null) { 1877 // We will update all the parameters when we open the device, so 1878 // we don't need to do anything now. 1879 mUpdateSet = 0; 1880 return; 1881 } else if (isCameraIdle()) { 1882 setCameraParameters(mUpdateSet); 1883 updateSceneModeUI(); 1884 mUpdateSet = 0; 1885 } else { 1886 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 1887 mHandler.sendEmptyMessageDelayed( 1888 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 1889 } 1890 } 1891 } 1892 1893 private void gotoGallery() { 1894 MenuHelper.gotoCameraImageGallery(this); 1895 } 1896 1897 private void startReceivingLocationUpdates() { 1898 if (mLocationManager != null) { 1899 try { 1900 mLocationManager.requestLocationUpdates( 1901 LocationManager.NETWORK_PROVIDER, 1902 1000, 1903 0F, 1904 mLocationListeners[1]); 1905 } catch (SecurityException ex) { 1906 Log.i(TAG, "fail to request location update, ignore", ex); 1907 } catch (IllegalArgumentException ex) { 1908 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1909 } 1910 try { 1911 mLocationManager.requestLocationUpdates( 1912 LocationManager.GPS_PROVIDER, 1913 1000, 1914 0F, 1915 mLocationListeners[0]); 1916 showGpsOnScreenIndicator(false); 1917 } catch (SecurityException ex) { 1918 Log.i(TAG, "fail to request location update, ignore", ex); 1919 } catch (IllegalArgumentException ex) { 1920 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1921 } 1922 Log.d(TAG, "startReceivingLocationUpdates"); 1923 } 1924 } 1925 1926 private void stopReceivingLocationUpdates() { 1927 if (mLocationManager != null) { 1928 for (int i = 0; i < mLocationListeners.length; i++) { 1929 try { 1930 mLocationManager.removeUpdates(mLocationListeners[i]); 1931 } catch (Exception ex) { 1932 Log.i(TAG, "fail to remove location listners, ignore", ex); 1933 } 1934 } 1935 Log.d(TAG, "stopReceivingLocationUpdates"); 1936 } 1937 hideGpsOnScreenIndicator(); 1938 } 1939 1940 private Location getCurrentLocation() { 1941 // go in best to worst order 1942 for (int i = 0; i < mLocationListeners.length; i++) { 1943 Location l = mLocationListeners[i].current(); 1944 if (l != null) return l; 1945 } 1946 Log.d(TAG, "No location received yet."); 1947 return null; 1948 } 1949 1950 private boolean isCameraIdle() { 1951 return (mCameraState == IDLE) || (mFocusManager.isFocusCompleted()); 1952 } 1953 1954 private boolean isImageCaptureIntent() { 1955 String action = getIntent().getAction(); 1956 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 1957 } 1958 1959 private void setupCaptureParams() { 1960 Bundle myExtras = getIntent().getExtras(); 1961 if (myExtras != null) { 1962 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 1963 mCropValue = myExtras.getString("crop"); 1964 } 1965 } 1966 1967 private void showPostCaptureAlert() { 1968 if (mIsImageCaptureIntent) { 1969 if (Util.isTabletUI()) { 1970 mShutterButton.setEnabled(false); 1971 } else { 1972 mShutterButton.setVisibility(View.GONE); 1973 } 1974 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1975 for (int id : pickIds) { 1976 View button = findViewById(id); 1977 ((View) button.getParent()).setVisibility(View.VISIBLE); 1978 } 1979 1980 // Remove the text of the cancel button 1981 View view = findViewById(R.id.btn_cancel); 1982 if (view instanceof Button) ((Button) view).setText(""); 1983 } 1984 } 1985 1986 private void hidePostCaptureAlert() { 1987 if (mIsImageCaptureIntent) { 1988 if (Util.isTabletUI()) { 1989 mShutterButton.setEnabled(true); 1990 } else { 1991 mShutterButton.setVisibility(View.VISIBLE); 1992 } 1993 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1994 for (int id : pickIds) { 1995 View button = findViewById(id); 1996 ((View) button.getParent()).setVisibility(View.GONE); 1997 } 1998 enableCameraControls(true); 1999 2000 // Restore the text of the cancel button 2001 View view = findViewById(R.id.btn_cancel); 2002 if (view instanceof Button) { 2003 ((Button) view).setText(R.string.review_cancel); 2004 } 2005 } 2006 } 2007 2008 @Override 2009 public boolean onPrepareOptionsMenu(Menu menu) { 2010 super.onPrepareOptionsMenu(menu); 2011 // Only show the menu when camera is idle. 2012 for (int i = 0; i < menu.size(); i++) { 2013 menu.getItem(i).setVisible(isCameraIdle()); 2014 } 2015 2016 return true; 2017 } 2018 2019 @Override 2020 public boolean onCreateOptionsMenu(Menu menu) { 2021 super.onCreateOptionsMenu(menu); 2022 2023 if (mIsImageCaptureIntent) { 2024 // No options menu for attach mode. 2025 return false; 2026 } else { 2027 addBaseMenuItems(menu); 2028 } 2029 return true; 2030 } 2031 2032 private void addBaseMenuItems(Menu menu) { 2033 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_VIDEO, new Runnable() { 2034 public void run() { 2035 switchToOtherMode(ModePicker.MODE_VIDEO); 2036 } 2037 }); 2038 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_PANORAMA, new Runnable() { 2039 public void run() { 2040 switchToOtherMode(ModePicker.MODE_PANORAMA); 2041 } 2042 }); 2043 MenuItem gallery = menu.add(R.string.camera_gallery_photos_text) 2044 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2045 public boolean onMenuItemClick(MenuItem item) { 2046 gotoGallery(); 2047 return true; 2048 } 2049 }); 2050 gallery.setIcon(android.R.drawable.ic_menu_gallery); 2051 mGalleryItems.add(gallery); 2052 2053 if (mNumberOfCameras > 1) { 2054 menu.add(R.string.switch_camera_id) 2055 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2056 public boolean onMenuItemClick(MenuItem item) { 2057 CameraSettings.writePreferredCameraId(mPreferences, 2058 ((mCameraId == mFrontCameraId) 2059 ? mBackCameraId : mFrontCameraId)); 2060 onSharedPreferenceChanged(); 2061 return true; 2062 } 2063 }).setIcon(android.R.drawable.ic_menu_camera); 2064 } 2065 } 2066 2067 private boolean switchToOtherMode(int mode) { 2068 if (isFinishing() || !isCameraIdle()) return false; 2069 MenuHelper.gotoMode(mode, Camera.this); 2070 mHandler.removeMessages(FIRST_TIME_INIT); 2071 finish(); 2072 return true; 2073 } 2074 2075 public boolean onModeChanged(int mode) { 2076 if (mode != ModePicker.MODE_CAMERA) { 2077 return switchToOtherMode(mode); 2078 } else { 2079 return true; 2080 } 2081 } 2082 2083 public void onSharedPreferenceChanged() { 2084 // ignore the events after "onPause()" 2085 if (mPausing) return; 2086 2087 boolean recordLocation; 2088 2089 recordLocation = RecordLocationPreference.get( 2090 mPreferences, getContentResolver()); 2091 2092 if (mRecordLocation != recordLocation) { 2093 mRecordLocation = recordLocation; 2094 if (mRecordLocation) { 2095 startReceivingLocationUpdates(); 2096 } else { 2097 stopReceivingLocationUpdates(); 2098 } 2099 } 2100 int cameraId = CameraSettings.readPreferredCameraId(mPreferences); 2101 if (mCameraId != cameraId) { 2102 // Restart the activity to have a crossfade animation. 2103 // TODO: Use SurfaceTexture to implement a better and faster 2104 // animation. 2105 if (mIsImageCaptureIntent) { 2106 // If the intent is camera capture, stay in camera capture mode. 2107 MenuHelper.gotoCameraMode(this, getIntent()); 2108 } else { 2109 MenuHelper.gotoCameraMode(this); 2110 } 2111 2112 finish(); 2113 } else { 2114 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 2115 } 2116 2117 int exposureValue = CameraSettings.readExposure(mPreferences); 2118 updateExposureOnScreenIndicator(exposureValue); 2119 } 2120 2121 @Override 2122 public void onUserInteraction() { 2123 super.onUserInteraction(); 2124 keepScreenOnAwhile(); 2125 } 2126 2127 private void resetScreenOn() { 2128 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2129 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2130 } 2131 2132 private void keepScreenOnAwhile() { 2133 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2134 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2135 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2136 } 2137 2138 public void onRestorePreferencesClicked() { 2139 if (mPausing) return; 2140 Runnable runnable = new Runnable() { 2141 public void run() { 2142 restorePreferences(); 2143 } 2144 }; 2145 MenuHelper.confirmAction(this, 2146 getString(R.string.confirm_restore_title), 2147 getString(R.string.confirm_restore_message), 2148 runnable); 2149 } 2150 2151 private void restorePreferences() { 2152 // Reset the zoom. Zoom value is not stored in preference. 2153 if (mParameters.isZoomSupported()) { 2154 mZoomValue = 0; 2155 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 2156 if (mZoomControl != null) mZoomControl.setZoomIndex(0); 2157 } 2158 if (mIndicatorControl != null) { 2159 mIndicatorControl.dismissSettingPopup(); 2160 CameraSettings.restorePreferences(Camera.this, mPreferences, 2161 mParameters); 2162 mIndicatorControl.reloadPreferences(); 2163 onSharedPreferenceChanged(); 2164 } 2165 } 2166 2167 public void onOverriddenPreferencesClicked() { 2168 if (mPausing) return; 2169 if (mNotSelectableToast == null) { 2170 String str = getResources().getString(R.string.not_selectable_in_scene_mode); 2171 mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT); 2172 } 2173 mNotSelectableToast.show(); 2174 } 2175 2176 private void showSharePopup() { 2177 Uri uri = mThumbnail.getUri(); 2178 if (mSharePopup == null || !uri.equals(mSharePopup.getUri())) { 2179 mSharePopup = new SharePopup(this, uri, mThumbnail.getBitmap(), "image/jpeg", 2180 mOrientationCompensation, mThumbnailView); 2181 } 2182 mSharePopup.showAtLocation(mThumbnailView, Gravity.NO_GRAVITY, 0, 0); 2183 } 2184 2185 @Override 2186 public void onFaceDetection(Face[] faces, android.hardware.Camera camera) { 2187 mFaceView.setFaces(faces); 2188 } 2189 2190 private void showTapToFocusToast() { 2191 // Show the toast. 2192 RotateLayout v = (RotateLayout) findViewById(R.id.tap_to_focus_prompt); 2193 v.setOrientation(mOrientationCompensation); 2194 v.startAnimation(AnimationUtils.loadAnimation(this, R.anim.on_screen_hint_enter)); 2195 v.setVisibility(View.VISIBLE); 2196 mHandler.sendEmptyMessageDelayed(DISMISS_TAP_TO_FOCUS_TOAST, 5000); 2197 // Clear the preference. 2198 Editor editor = mPreferences.edit(); 2199 editor.putBoolean(CameraSettings.KEY_TAP_TO_FOCUS_PROMPT_SHOWN, false); 2200 editor.apply(); 2201 } 2202 2203 private void initializeCapabilities() { 2204 mInitialParams = mCameraDevice.getParameters(); 2205 mFocusManager.initializeParameters(mInitialParams); 2206 mFocusAreaSupported = (mInitialParams.getMaxNumFocusAreas() > 0 2207 && isSupported(Parameters.FOCUS_MODE_AUTO, 2208 mInitialParams.getSupportedFocusModes())); 2209 mMeteringAreaSupported = (mInitialParams.getMaxNumMeteringAreas() > 0); 2210 } 2211} 2212