Camera.java revision b62bb6946185959ad28577fdcb175f2bd92bb014
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.IndicatorControlContainer; 22import com.android.camera.ui.RotateImageView; 23import com.android.camera.ui.RotateLayout; 24import com.android.camera.ui.SharePopup; 25import com.android.camera.ui.ZoomControl; 26 27import android.app.Activity; 28import android.content.BroadcastReceiver; 29import android.content.ContentProviderClient; 30import android.content.ContentResolver; 31import android.content.Context; 32import android.content.Intent; 33import android.content.IntentFilter; 34import android.content.SharedPreferences.Editor; 35import android.graphics.Bitmap; 36import android.hardware.Camera.CameraInfo; 37import android.hardware.Camera.Face; 38import android.hardware.Camera.FaceDetectionListener; 39import android.hardware.Camera.Parameters; 40import android.hardware.Camera.PictureCallback; 41import android.hardware.Camera.Size; 42import android.location.Location; 43import android.media.CameraProfile; 44import android.net.Uri; 45import android.os.Bundle; 46import android.os.Handler; 47import android.os.Looper; 48import android.os.Message; 49import android.os.MessageQueue; 50import android.os.SystemClock; 51import android.provider.MediaStore; 52import android.util.Log; 53import android.view.GestureDetector; 54import android.view.Gravity; 55import android.view.KeyEvent; 56import android.view.Menu; 57import android.view.MenuItem; 58import android.view.MenuItem.OnMenuItemClickListener; 59import android.view.MotionEvent; 60import android.view.OrientationEventListener; 61import android.view.SurfaceHolder; 62import android.view.SurfaceView; 63import android.view.View; 64import android.view.WindowManager; 65import android.view.animation.AnimationUtils; 66import android.widget.TextView; 67import android.widget.Toast; 68 69import java.io.File; 70import java.io.FileNotFoundException; 71import java.io.FileOutputStream; 72import java.io.IOException; 73import java.io.OutputStream; 74import java.util.ArrayList; 75import java.util.Collections; 76import java.util.Formatter; 77import java.util.List; 78 79/** The Camera activity which can preview and take pictures. */ 80public class Camera extends ActivityBase implements FocusManager.Listener, 81 View.OnTouchListener, ShutterButton.OnShutterButtonListener, 82 SurfaceHolder.Callback, ModePicker.OnModeChangeListener, 83 FaceDetectionListener, CameraPreference.OnPreferenceChangedListener, 84 LocationManager.Listener { 85 86 private static final String TAG = "camera"; 87 88 private static final int CROP_MSG = 1; 89 private static final int FIRST_TIME_INIT = 2; 90 private static final int CLEAR_SCREEN_DELAY = 3; 91 private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 4; 92 private static final int CHECK_DISPLAY_ROTATION = 5; 93 private static final int SHOW_TAP_TO_FOCUS_TOAST = 6; 94 private static final int DISMISS_TAP_TO_FOCUS_TOAST = 7; 95 96 // The subset of parameters we need to update in setCameraParameters(). 97 private static final int UPDATE_PARAM_INITIALIZE = 1; 98 private static final int UPDATE_PARAM_ZOOM = 2; 99 private static final int UPDATE_PARAM_PREFERENCE = 4; 100 private static final int UPDATE_PARAM_ALL = -1; 101 102 // When setCameraParametersWhenIdle() is called, we accumulate the subsets 103 // needed to be updated in mUpdateSet. 104 private int mUpdateSet; 105 106 private static final int SCREEN_DELAY = 2 * 60 * 1000; 107 108 private static final int ZOOM_STOPPED = 0; 109 private static final int ZOOM_START = 1; 110 private static final int ZOOM_STOPPING = 2; 111 112 private int mZoomState = ZOOM_STOPPED; 113 private boolean mSmoothZoomSupported = false; 114 private int mZoomValue; // The current zoom value. 115 private int mZoomMax; 116 private int mTargetZoomValue; 117 private ZoomControl mZoomControl; 118 119 private Parameters mParameters; 120 private Parameters mInitialParams; 121 private boolean mFocusAreaSupported; 122 private boolean mMeteringAreaSupported; 123 private boolean mAwbLockSupported; 124 private boolean mAeLockSupported; 125 private boolean mAeAwbLock; 126 127 private MyOrientationEventListener mOrientationListener; 128 // The degrees of the device rotated clockwise from its natural orientation. 129 private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 130 // The orientation compensation for icons and thumbnails. Ex: if the value 131 // is 90, the UI components should be rotated 90 degrees counter-clockwise. 132 private int mOrientationCompensation = 0; 133 private ComboPreferences mPreferences; 134 135 private static final String sTempCropFilename = "crop-temp"; 136 137 private android.hardware.Camera mCameraDevice; 138 private ContentProviderClient mMediaProviderClient; 139 private SurfaceHolder mSurfaceHolder = null; 140 private ShutterButton mShutterButton; 141 private GestureDetector mPopupGestureDetector; 142 private boolean mOpenCameraFail = false; 143 private boolean mCameraDisabled = false; 144 145 private View mPreviewPanel; // The container of PreviewFrameLayout. 146 private PreviewFrameLayout mPreviewFrameLayout; 147 private View mPreviewFrame; // Preview frame area. 148 149 // A popup window that contains a bigger thumbnail and a list of apps to share. 150 private SharePopup mSharePopup; 151 // The bitmap of the last captured picture thumbnail and the URI of the 152 // original picture. 153 private Thumbnail mThumbnail; 154 // An imageview showing showing the last captured picture thumbnail. 155 private RotateImageView mThumbnailView; 156 private ModePicker mModePicker; 157 private FaceView mFaceView; 158 private RotateLayout mFocusIndicator; 159 160 // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. 161 private String mCropValue; 162 private Uri mSaveUri; 163 164 // On-screen indicator 165 private View mGpsNoSignalIndicator; 166 private View mGpsHasSignalIndicator; 167 private TextView mExposureIndicator; 168 169 private final StringBuilder mBuilder = new StringBuilder(); 170 private final Formatter mFormatter = new Formatter(mBuilder); 171 private final Object[] mFormatterArgs = new Object[1]; 172 173 /** 174 * An unpublished intent flag requesting to return as soon as capturing 175 * is completed. 176 * 177 * TODO: consider publishing by moving into MediaStore. 178 */ 179 private final static String EXTRA_QUICK_CAPTURE = 180 "android.intent.extra.quickCapture"; 181 182 // The display rotation in degrees. This is only valid when mCameraState is 183 // not PREVIEW_STOPPED. 184 private int mDisplayRotation; 185 // The value for android.hardware.Camera.setDisplayOrientation. 186 private int mDisplayOrientation; 187 private boolean mPausing; 188 private boolean mFirstTimeInitialized; 189 private boolean mIsImageCaptureIntent; 190 191 private static final int PREVIEW_STOPPED = 0; 192 private static final int IDLE = 1; // preview is active 193 // Focus is in progress. The exact focus state is in Focus.java. 194 private static final int FOCUSING = 2; 195 private static final int SNAPSHOT_IN_PROGRESS = 3; 196 private int mCameraState = PREVIEW_STOPPED; 197 198 private ContentResolver mContentResolver; 199 private boolean mDidRegister = false; 200 201 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 202 203 private LocationManager mLocationManager; 204 205 private final ShutterCallback mShutterCallback = new ShutterCallback(); 206 private final PostViewPictureCallback mPostViewPictureCallback = 207 new PostViewPictureCallback(); 208 private final RawPictureCallback mRawPictureCallback = 209 new RawPictureCallback(); 210 private final AutoFocusCallback mAutoFocusCallback = 211 new AutoFocusCallback(); 212 private final ZoomListener mZoomListener = new ZoomListener(); 213 private final CameraErrorCallback mErrorCallback = new CameraErrorCallback(); 214 215 private long mFocusStartTime; 216 private long mCaptureStartTime; 217 private long mShutterCallbackTime; 218 private long mPostViewPictureCallbackTime; 219 private long mRawPictureCallbackTime; 220 private long mJpegPictureCallbackTime; 221 private long mOnResumeTime; 222 private long mPicturesRemaining; 223 private byte[] mJpegImageData; 224 225 // These latency time are for the CameraLatency test. 226 public long mAutoFocusTime; 227 public long mShutterLag; 228 public long mShutterToPictureDisplayedTime; 229 public long mPictureDisplayedToJpegCallbackTime; 230 public long mJpegCallbackFinishTime; 231 232 // This handles everything about focus. 233 private FocusManager mFocusManager; 234 private String mSceneMode; 235 private Toast mNotSelectableToast; 236 private Toast mNoShareToast; 237 238 private final Handler mHandler = new MainHandler(); 239 private IndicatorControlContainer mIndicatorControlContainer; 240 private PreferenceGroup mPreferenceGroup; 241 242 // multiple cameras support 243 private int mNumberOfCameras; 244 private int mCameraId; 245 private int mFrontCameraId; 246 private int mBackCameraId; 247 248 private boolean mQuickCapture; 249 250 /** 251 * This Handler is used to post message back onto the main thread of the 252 * application 253 */ 254 private class MainHandler extends Handler { 255 @Override 256 public void handleMessage(Message msg) { 257 switch (msg.what) { 258 case CLEAR_SCREEN_DELAY: { 259 getWindow().clearFlags( 260 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 261 break; 262 } 263 264 case FIRST_TIME_INIT: { 265 initializeFirstTime(); 266 break; 267 } 268 269 case SET_CAMERA_PARAMETERS_WHEN_IDLE: { 270 setCameraParametersWhenIdle(0); 271 break; 272 } 273 274 case CHECK_DISPLAY_ROTATION: { 275 // Restart the preview if display rotation has changed. 276 // Sometimes this happens when the device is held upside 277 // down and camera app is opened. Rotation animation will 278 // take some time and the rotation value we have got may be 279 // wrong. Framework does not have a callback for this now. 280 if (Util.getDisplayRotation(Camera.this) != mDisplayRotation 281 && isCameraIdle()) { 282 startPreview(); 283 } 284 if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) { 285 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 286 } 287 break; 288 } 289 290 case SHOW_TAP_TO_FOCUS_TOAST: { 291 showTapToFocusToast(); 292 break; 293 } 294 295 case DISMISS_TAP_TO_FOCUS_TOAST: { 296 View v = findViewById(R.id.tap_to_focus_prompt); 297 v.setVisibility(View.GONE); 298 v.setAnimation(AnimationUtils.loadAnimation(Camera.this, 299 R.anim.on_screen_hint_exit)); 300 break; 301 } 302 } 303 } 304 } 305 306 private void resetExposureCompensation() { 307 String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, 308 CameraSettings.EXPOSURE_DEFAULT_VALUE); 309 if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { 310 Editor editor = mPreferences.edit(); 311 editor.putString(CameraSettings.KEY_EXPOSURE, "0"); 312 editor.apply(); 313 if (mIndicatorControlContainer != null) { 314 mIndicatorControlContainer.reloadPreferences(); 315 } 316 } 317 } 318 319 private void keepMediaProviderInstance() { 320 // We want to keep a reference to MediaProvider in camera's lifecycle. 321 // TODO: Utilize mMediaProviderClient instance to replace 322 // ContentResolver calls. 323 if (mMediaProviderClient == null) { 324 mMediaProviderClient = getContentResolver() 325 .acquireContentProviderClient(MediaStore.AUTHORITY); 326 } 327 } 328 329 // Snapshots can only be taken after this is called. It should be called 330 // once only. We could have done these things in onCreate() but we want to 331 // make preview screen appear as soon as possible. 332 private void initializeFirstTime() { 333 if (mFirstTimeInitialized) return; 334 335 // Create orientation listenter. This should be done first because it 336 // takes some time to get first orientation. 337 mOrientationListener = new MyOrientationEventListener(Camera.this); 338 mOrientationListener.enable(); 339 340 // Initialize location sevice. 341 boolean recordLocation = RecordLocationPreference.get( 342 mPreferences, getContentResolver()); 343 initOnScreenIndicator(); 344 mLocationManager.recordLocation(recordLocation); 345 346 keepMediaProviderInstance(); 347 checkStorage(); 348 349 // Initialize last picture button. 350 mContentResolver = getContentResolver(); 351 if (!mIsImageCaptureIntent) { // no thumbnail in image capture intent 352 initThumbnailButton(); 353 } 354 355 // Initialize shutter button. 356 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 357 mShutterButton.setOnShutterButtonListener(this); 358 mShutterButton.setVisibility(View.VISIBLE); 359 360 // Initialize focus UI. 361 mPreviewFrame = findViewById(R.id.camera_preview); 362 mPreviewFrame.setOnTouchListener(this); 363 mFocusIndicator = (RotateLayout) findViewById(R.id.focus_indicator_rotate_layout); 364 mFocusManager.initialize(mFocusIndicator, mPreviewFrame, mFaceView, this); 365 mFocusManager.initializeToneGenerator(); 366 Util.initializeScreenBrightness(getWindow(), getContentResolver()); 367 installIntentFilter(); 368 initializeZoom(); 369 // Show the tap to focus toast if this is the first start. 370 if (mFocusAreaSupported && 371 mPreferences.getBoolean(CameraSettings.KEY_TAP_TO_FOCUS_PROMPT_SHOWN, true)) { 372 // Delay the toast for one second to wait for orientation. 373 mHandler.sendEmptyMessageDelayed(SHOW_TAP_TO_FOCUS_TOAST, 1000); 374 } 375 376 mFirstTimeInitialized = true; 377 addIdleHandler(); 378 } 379 380 private void addIdleHandler() { 381 MessageQueue queue = Looper.myQueue(); 382 queue.addIdleHandler(new MessageQueue.IdleHandler() { 383 public boolean queueIdle() { 384 Storage.ensureOSXCompatible(); 385 return false; 386 } 387 }); 388 } 389 390 private void initThumbnailButton() { 391 // Load the thumbnail from the disk. 392 mThumbnail = Thumbnail.loadFrom(new File(getFilesDir(), Thumbnail.LAST_THUMB_FILENAME)); 393 updateThumbnailButton(); 394 } 395 396 private void updateThumbnailButton() { 397 // Update last image if URI is invalid and the storage is ready. 398 if ((mThumbnail == null || !Util.isUriValid(mThumbnail.getUri(), mContentResolver)) 399 && mPicturesRemaining >= 0) { 400 mThumbnail = Thumbnail.getLastThumbnail(mContentResolver); 401 } 402 if (mThumbnail != null) { 403 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 404 } else { 405 mThumbnailView.setBitmap(null); 406 } 407 } 408 409 // If the activity is paused and resumed, this method will be called in 410 // onResume. 411 private void initializeSecondTime() { 412 // Start orientation listener as soon as possible because it takes 413 // some time to get first orientation. 414 mOrientationListener.enable(); 415 416 // Start location update if needed. 417 boolean recordLocation = RecordLocationPreference.get( 418 mPreferences, getContentResolver()); 419 mLocationManager.recordLocation(recordLocation); 420 421 installIntentFilter(); 422 mFocusManager.initializeToneGenerator(); 423 initializeZoom(); 424 keepMediaProviderInstance(); 425 checkStorage(); 426 hidePostCaptureAlert(); 427 428 if (!mIsImageCaptureIntent) { 429 updateThumbnailButton(); 430 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 431 } 432 } 433 434 private class ZoomChangeListener implements ZoomControl.OnZoomChangedListener { 435 // only for immediate zoom 436 @Override 437 public void onZoomValueChanged(int index) { 438 Camera.this.onZoomValueChanged(index); 439 } 440 441 // only for smooth zoom 442 @Override 443 public void onZoomStateChanged(int state) { 444 if (mPausing) return; 445 446 Log.v(TAG, "zoom picker state=" + state); 447 if (state == ZoomControl.ZOOM_IN) { 448 Camera.this.onZoomValueChanged(mZoomMax); 449 } else if (state == ZoomControl.ZOOM_OUT) { 450 Camera.this.onZoomValueChanged(0); 451 } else { 452 mTargetZoomValue = -1; 453 if (mZoomState == ZOOM_START) { 454 mZoomState = ZOOM_STOPPING; 455 mCameraDevice.stopSmoothZoom(); 456 } 457 } 458 } 459 } 460 461 private void initializeZoom() { 462 if (!mParameters.isZoomSupported()) return; 463 mZoomMax = mParameters.getMaxZoom(); 464 // Currently we use immediate zoom for fast zooming to get better UX and 465 // there is no plan to take advantage of the smooth zoom. 466 mZoomControl.setZoomMax(mZoomMax); 467 mZoomControl.setZoomIndex(mParameters.getZoom()); 468 mZoomControl.setSmoothZoomSupported(mSmoothZoomSupported); 469 mZoomControl.setOnZoomChangeListener(new ZoomChangeListener()); 470 mCameraDevice.setZoomChangeListener(mZoomListener); 471 } 472 473 private void onZoomValueChanged(int index) { 474 // Not useful to change zoom value when the activity is paused. 475 if (mPausing) return; 476 477 if (mSmoothZoomSupported) { 478 if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { 479 mTargetZoomValue = index; 480 if (mZoomState == ZOOM_START) { 481 mZoomState = ZOOM_STOPPING; 482 mCameraDevice.stopSmoothZoom(); 483 } 484 } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { 485 mTargetZoomValue = index; 486 mCameraDevice.startSmoothZoom(index); 487 mZoomState = ZOOM_START; 488 } 489 } else { 490 mZoomValue = index; 491 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 492 } 493 } 494 495 @Override 496 public void startFaceDetection() { 497 if (mParameters.getMaxNumDetectedFaces() > 0) { 498 mFaceView = (FaceView) findViewById(R.id.face_view); 499 mFaceView.clear(); 500 mFaceView.setVisibility(View.VISIBLE); 501 mFaceView.setDisplayOrientation(mDisplayOrientation); 502 CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; 503 mFaceView.setMirror(info.facing == CameraInfo.CAMERA_FACING_FRONT); 504 mFaceView.resume(); 505 mCameraDevice.setFaceDetectionListener(this); 506 mCameraDevice.startFaceDetection(); 507 } 508 } 509 510 @Override 511 public void stopFaceDetection() { 512 if (mParameters.getMaxNumDetectedFaces() > 0) { 513 mCameraDevice.setFaceDetectionListener(null); 514 mCameraDevice.stopFaceDetection(); 515 if (mFaceView != null) mFaceView.clear(); 516 } 517 } 518 519 private class PopupGestureListener 520 extends GestureDetector.SimpleOnGestureListener { 521 @Override 522 public boolean onDown(MotionEvent e) { 523 // Check if the popup window is visible. 524 View popup = mIndicatorControlContainer.getActiveSettingPopup(); 525 if (popup == null) return false; 526 527 528 // Let popup window, indicator control or preview frame handle the 529 // event by themselves. Dismiss the popup window if users touch on 530 // other areas. 531 if (!Util.pointInView(e.getX(), e.getY(), popup) 532 && !Util.pointInView(e.getX(), e.getY(), mIndicatorControlContainer) 533 && !Util.pointInView(e.getX(), e.getY(), mPreviewFrame)) { 534 mIndicatorControlContainer.dismissSettingPopup(); 535 // Let event fall through. 536 } 537 return false; 538 } 539 } 540 541 @Override 542 public boolean dispatchTouchEvent(MotionEvent m) { 543 // Check if the popup window should be dismissed first. 544 if (mPopupGestureDetector != null && mPopupGestureDetector.onTouchEvent(m)) { 545 return true; 546 } 547 548 return super.dispatchTouchEvent(m); 549 } 550 551 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 552 @Override 553 public void onReceive(Context context, Intent intent) { 554 String action = intent.getAction(); 555 Log.d(TAG, "Received intent action=" + action); 556 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 557 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 558 || action.equals(Intent.ACTION_MEDIA_CHECKING)) { 559 checkStorage(); 560 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 561 checkStorage(); 562 if (!mIsImageCaptureIntent) { 563 updateThumbnailButton(); 564 } 565 } 566 } 567 }; 568 569 private void initOnScreenIndicator() { 570 mGpsNoSignalIndicator = findViewById(R.id.onscreen_gps_indicator_no_signal); 571 mGpsHasSignalIndicator = findViewById(R.id.onscreen_gps_indicator_on); 572 mExposureIndicator = (TextView) findViewById(R.id.onscreen_exposure_indicator); 573 } 574 575 @Override 576 public void showGpsOnScreenIndicator(boolean hasSignal) { 577 if (hasSignal) { 578 if (mGpsNoSignalIndicator != null) { 579 mGpsNoSignalIndicator.setVisibility(View.GONE); 580 } 581 if (mGpsHasSignalIndicator != null) { 582 mGpsHasSignalIndicator.setVisibility(View.VISIBLE); 583 } 584 } else { 585 if (mGpsNoSignalIndicator != null) { 586 mGpsNoSignalIndicator.setVisibility(View.VISIBLE); 587 } 588 if (mGpsHasSignalIndicator != null) { 589 mGpsHasSignalIndicator.setVisibility(View.GONE); 590 } 591 } 592 } 593 594 @Override 595 public void hideGpsOnScreenIndicator() { 596 if (mGpsNoSignalIndicator != null) mGpsNoSignalIndicator.setVisibility(View.GONE); 597 if (mGpsHasSignalIndicator != null) mGpsHasSignalIndicator.setVisibility(View.GONE); 598 } 599 600 private void updateExposureOnScreenIndicator(int value) { 601 if (mExposureIndicator == null) return; 602 603 if (value == 0) { 604 mExposureIndicator.setText(""); 605 mExposureIndicator.setVisibility(View.GONE); 606 } else { 607 float step = mParameters.getExposureCompensationStep(); 608 mFormatterArgs[0] = value * step; 609 mBuilder.delete(0, mBuilder.length()); 610 mFormatter.format("%+1.1f", mFormatterArgs); 611 String exposure = mFormatter.toString(); 612 mExposureIndicator.setText(exposure); 613 mExposureIndicator.setVisibility(View.VISIBLE); 614 } 615 } 616 617 private final class ShutterCallback 618 implements android.hardware.Camera.ShutterCallback { 619 public void onShutter() { 620 mShutterCallbackTime = System.currentTimeMillis(); 621 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 622 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 623 mFocusManager.onShutter(); 624 } 625 } 626 627 private final class PostViewPictureCallback implements PictureCallback { 628 public void onPictureTaken( 629 byte [] data, android.hardware.Camera camera) { 630 mPostViewPictureCallbackTime = System.currentTimeMillis(); 631 Log.v(TAG, "mShutterToPostViewCallbackTime = " 632 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 633 + "ms"); 634 } 635 } 636 637 private final class RawPictureCallback implements PictureCallback { 638 public void onPictureTaken( 639 byte [] rawData, android.hardware.Camera camera) { 640 mRawPictureCallbackTime = System.currentTimeMillis(); 641 Log.v(TAG, "mShutterToRawCallbackTime = " 642 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 643 } 644 } 645 646 private final class JpegPictureCallback implements PictureCallback { 647 Location mLocation; 648 649 public JpegPictureCallback(Location loc) { 650 mLocation = loc; 651 } 652 653 public void onPictureTaken( 654 final byte [] jpegData, final android.hardware.Camera camera) { 655 if (mPausing) { 656 return; 657 } 658 659 mJpegPictureCallbackTime = System.currentTimeMillis(); 660 // If postview callback has arrived, the captured image is displayed 661 // in postview callback. If not, the captured image is displayed in 662 // raw picture callback. 663 if (mPostViewPictureCallbackTime != 0) { 664 mShutterToPictureDisplayedTime = 665 mPostViewPictureCallbackTime - mShutterCallbackTime; 666 mPictureDisplayedToJpegCallbackTime = 667 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 668 } else { 669 mShutterToPictureDisplayedTime = 670 mRawPictureCallbackTime - mShutterCallbackTime; 671 mPictureDisplayedToJpegCallbackTime = 672 mJpegPictureCallbackTime - mRawPictureCallbackTime; 673 } 674 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 675 + mPictureDisplayedToJpegCallbackTime + "ms"); 676 677 if (!mIsImageCaptureIntent) { 678 enableCameraControls(true); 679 680 startPreview(); 681 } 682 683 if (!mIsImageCaptureIntent) { 684 storeImage(jpegData, mLocation); 685 } else { 686 mJpegImageData = jpegData; 687 if (!mQuickCapture) { 688 showPostCaptureAlert(); 689 } else { 690 doAttach(); 691 } 692 } 693 694 // Check this in advance of each shot so we don't add to shutter 695 // latency. It's true that someone else could write to the SD card in 696 // the mean time and fill it, but that could have happened between the 697 // shutter press and saving the JPEG too. 698 checkStorage(); 699 700 long now = System.currentTimeMillis(); 701 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 702 Log.v(TAG, "mJpegCallbackFinishTime = " 703 + mJpegCallbackFinishTime + "ms"); 704 mJpegPictureCallbackTime = 0; 705 } 706 } 707 708 private final class AutoFocusCallback 709 implements android.hardware.Camera.AutoFocusCallback { 710 public void onAutoFocus( 711 boolean focused, android.hardware.Camera camera) { 712 if (mPausing) return; 713 714 mAutoFocusTime = System.currentTimeMillis() - mFocusStartTime; 715 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 716 mFocusManager.onAutoFocus(focused); 717 // If focus completes and the snapshot is not started, enable the 718 // controls. 719 if (mFocusManager.isFocusCompleted()) { 720 enableCameraControls(true); 721 } 722 } 723 } 724 725 private final class ZoomListener 726 implements android.hardware.Camera.OnZoomChangeListener { 727 @Override 728 public void onZoomChange( 729 int value, boolean stopped, android.hardware.Camera camera) { 730 Log.v(TAG, "Zoom changed: value=" + value + ". stopped="+ stopped); 731 mZoomValue = value; 732 733 // Update the UI when we get zoom value. 734 mZoomControl.setZoomIndex(value); 735 736 // Keep mParameters up to date. We do not getParameter again in 737 // takePicture. If we do not do this, wrong zoom value will be set. 738 mParameters.setZoom(value); 739 740 if (stopped && mZoomState != ZOOM_STOPPED) { 741 if (mTargetZoomValue != -1 && value != mTargetZoomValue) { 742 mCameraDevice.startSmoothZoom(mTargetZoomValue); 743 mZoomState = ZOOM_START; 744 } else { 745 mZoomState = ZOOM_STOPPED; 746 } 747 } 748 } 749 } 750 751 private void storeImage(final byte[] data, Location loc) { 752 long dateTaken = System.currentTimeMillis(); 753 String title = Util.createJpegName(dateTaken); 754 int orientation = Exif.getOrientation(data); 755 Uri uri = Storage.addImage(mContentResolver, title, dateTaken, 756 loc, orientation, data); 757 if (uri != null) { 758 // Create a thumbnail whose width is equal or bigger than that of the preview. 759 int ratio = (int) Math.ceil((double) mParameters.getPictureSize().width 760 / mPreviewFrameLayout.getWidth()); 761 int inSampleSize = Integer.highestOneBit(ratio); 762 mThumbnail = Thumbnail.createThumbnail(data, orientation, inSampleSize, uri); 763 if (mThumbnail != null) { 764 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 765 } 766 Util.broadcastNewPicture(this, uri); 767 } 768 } 769 770 @Override 771 public boolean capture() { 772 // If we are already in the middle of taking a snapshot then ignore. 773 if (mCameraState == SNAPSHOT_IN_PROGRESS || mCameraDevice == null) { 774 return false; 775 } 776 mCaptureStartTime = System.currentTimeMillis(); 777 mPostViewPictureCallbackTime = 0; 778 enableCameraControls(false); 779 mJpegImageData = null; 780 781 // Set rotation and gps data. 782 Util.setRotationParameter(mParameters, mCameraId, mOrientation); 783 Location loc = mLocationManager.getCurrentLocation(); 784 Util.setGpsParameters(mParameters, loc); 785 mCameraDevice.setParameters(mParameters); 786 787 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 788 mPostViewPictureCallback, new JpegPictureCallback(loc)); 789 mCameraState = SNAPSHOT_IN_PROGRESS; 790 return true; 791 } 792 793 @Override 794 public void setFocusParameters() { 795 setCameraParameters(UPDATE_PARAM_PREFERENCE); 796 } 797 798 private boolean saveDataToFile(String filePath, byte[] data) { 799 FileOutputStream f = null; 800 try { 801 f = new FileOutputStream(filePath); 802 f.write(data); 803 } catch (IOException e) { 804 return false; 805 } finally { 806 Util.closeSilently(f); 807 } 808 return true; 809 } 810 811 @Override 812 public void onCreate(Bundle icicle) { 813 super.onCreate(icicle); 814 815 mIsImageCaptureIntent = isImageCaptureIntent(); 816 setContentView(R.layout.camera); 817 if (mIsImageCaptureIntent) { 818 findViewById(R.id.btn_cancel).setVisibility(View.VISIBLE); 819 } else { 820 mThumbnailView = (RotateImageView) findViewById(R.id.thumbnail); 821 mThumbnailView.setVisibility(View.VISIBLE); 822 } 823 824 mPreferences = new ComboPreferences(this); 825 CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal()); 826 mFocusManager = new FocusManager(mPreferences, 827 getString(R.string.pref_camera_focusmode_default)); 828 829 mCameraId = CameraSettings.readPreferredCameraId(mPreferences); 830 831 // Testing purpose. Launch a specific camera through the intent extras. 832 int intentCameraId = Util.getCameraFacingIntentExtras(this); 833 if (intentCameraId != -1) { 834 mCameraId = intentCameraId; 835 } 836 837 mPreferences.setLocalId(this, mCameraId); 838 CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); 839 840 mNumberOfCameras = CameraHolder.instance().getNumberOfCameras(); 841 mQuickCapture = getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false); 842 843 // we need to reset exposure for the preview 844 resetExposureCompensation(); 845 846 /* 847 * To reduce startup time, we start the preview in another thread. 848 * We make sure the preview is started at the end of onCreate. 849 */ 850 Thread startPreviewThread = new Thread(new Runnable() { 851 public void run() { 852 try { 853 mCameraDevice = Util.openCamera(Camera.this, mCameraId); 854 initializeCapabilities(); 855 startPreview(); 856 } catch (CameraHardwareException e) { 857 mOpenCameraFail = true; 858 } catch (CameraDisabledException e) { 859 mCameraDisabled = true; 860 } 861 } 862 }); 863 startPreviewThread.start(); 864 865 Util.enterLightsOutMode(getWindow()); 866 867 // don't set mSurfaceHolder here. We have it set ONLY within 868 // surfaceChanged / surfaceDestroyed, other parts of the code 869 // assume that when it is set, the surface is also set. 870 SurfaceView preview = (SurfaceView) findViewById(R.id.camera_preview); 871 SurfaceHolder holder = preview.getHolder(); 872 holder.addCallback(this); 873 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 874 875 if (mIsImageCaptureIntent) { 876 setupCaptureParams(); 877 } else { 878 mModePicker = (ModePicker) findViewById(R.id.mode_picker); 879 mModePicker.setVisibility(View.VISIBLE); 880 mModePicker.setOnModeChangeListener(this); 881 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 882 } 883 884 mZoomControl = (ZoomControl) findViewById(R.id.zoom_control); 885 mLocationManager = new LocationManager(this, this); 886 887 // Make sure preview is started. 888 try { 889 startPreviewThread.join(); 890 if (mOpenCameraFail) { 891 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 892 return; 893 } else if (mCameraDisabled) { 894 Util.showErrorAndFinish(this, R.string.camera_disabled); 895 return; 896 } 897 } catch (InterruptedException ex) { 898 // ignore 899 } 900 901 mBackCameraId = CameraHolder.instance().getBackCameraId(); 902 mFrontCameraId = CameraHolder.instance().getFrontCameraId(); 903 904 // Do this after starting preview because it depends on camera 905 // parameters. 906 initializeIndicatorControl(); 907 } 908 909 private void overrideCameraSettings(final String flashMode, 910 final String whiteBalance, final String focusMode) { 911 if (mIndicatorControlContainer != null) { 912 mIndicatorControlContainer.overrideSettings( 913 CameraSettings.KEY_FLASH_MODE, flashMode, 914 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 915 CameraSettings.KEY_FOCUS_MODE, focusMode); 916 } 917 } 918 919 private void updateSceneModeUI() { 920 // If scene mode is set, we cannot set flash mode, white balance, and 921 // focus mode, instead, we read it from driver 922 if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 923 overrideCameraSettings(mParameters.getFlashMode(), 924 mParameters.getWhiteBalance(), mParameters.getFocusMode()); 925 } else { 926 overrideCameraSettings(null, null, null); 927 } 928 } 929 930 private void loadCameraPreferences() { 931 CameraSettings settings = new CameraSettings(this, mInitialParams, 932 mCameraId, CameraHolder.instance().getCameraInfo()); 933 mPreferenceGroup = settings.getPreferenceGroup(R.xml.camera_preferences); 934 } 935 936 private void initializeIndicatorControl() { 937 // setting the indicator buttons. 938 mIndicatorControlContainer = 939 (IndicatorControlContainer) findViewById(R.id.indicator_control); 940 if (mIndicatorControlContainer == null) return; 941 loadCameraPreferences(); 942 final String[] SETTING_KEYS = { 943 CameraSettings.KEY_FLASH_MODE, 944 CameraSettings.KEY_WHITE_BALANCE, 945 CameraSettings.KEY_SCENE_MODE}; 946 final String[] OTHER_SETTING_KEYS = { 947 CameraSettings.KEY_RECORD_LOCATION, 948 CameraSettings.KEY_FOCUS_MODE, 949 CameraSettings.KEY_EXPOSURE, 950 CameraSettings.KEY_PICTURE_SIZE}; 951 952 CameraPicker.setImageResourceId(R.drawable.ic_switch_photo_facing_holo_light); 953 mIndicatorControlContainer.initialize(this, mPreferenceGroup, 954 mParameters.isZoomSupported(), 955 SETTING_KEYS, OTHER_SETTING_KEYS); 956 updateSceneModeUI(); 957 mIndicatorControlContainer.setListener(this); 958 } 959 960 private boolean collapseCameraControls() { 961 if ((mIndicatorControlContainer != null) 962 && mIndicatorControlContainer.dismissSettingPopup()) { 963 return true; 964 } 965 return false; 966 } 967 968 private void enableCameraControls(boolean enable) { 969 if (mIndicatorControlContainer != null) { 970 mIndicatorControlContainer.setEnabled(enable); 971 } 972 if (mModePicker != null) mModePicker.setEnabled(enable); 973 if (mZoomControl != null) mZoomControl.setEnabled(enable); 974 } 975 976 public static int roundOrientation(int orientation) { 977 return ((orientation + 45) / 90 * 90) % 360; 978 } 979 980 private class MyOrientationEventListener 981 extends OrientationEventListener { 982 public MyOrientationEventListener(Context context) { 983 super(context); 984 } 985 986 @Override 987 public void onOrientationChanged(int orientation) { 988 // We keep the last known orientation. So if the user first orient 989 // the camera then point the camera to floor or sky, we still have 990 // the correct orientation. 991 if (orientation == ORIENTATION_UNKNOWN) return; 992 mOrientation = roundOrientation(orientation); 993 // When the screen is unlocked, display rotation may change. Always 994 // calculate the up-to-date orientationCompensation. 995 int orientationCompensation = mOrientation 996 + Util.getDisplayRotation(Camera.this); 997 if (mOrientationCompensation != orientationCompensation) { 998 mOrientationCompensation = orientationCompensation; 999 setOrientationIndicator(mOrientationCompensation); 1000 } 1001 1002 // Show the toast after getting the first orientation changed. 1003 if (mHandler.hasMessages(SHOW_TAP_TO_FOCUS_TOAST)) { 1004 mHandler.removeMessages(SHOW_TAP_TO_FOCUS_TOAST); 1005 showTapToFocusToast(); 1006 } 1007 } 1008 } 1009 1010 private void setOrientationIndicator(int degree) { 1011 if (mThumbnailView != null) mThumbnailView.setDegree(degree); 1012 if (mModePicker != null) mModePicker.setDegree(degree); 1013 if (mSharePopup != null) mSharePopup.setOrientation(degree); 1014 if (mIndicatorControlContainer != null) mIndicatorControlContainer.setDegree(degree); 1015 if (mZoomControl != null) mZoomControl.setDegree(degree); 1016 if (mFocusIndicator != null) mFocusIndicator.setOrientation(degree); 1017 if (mFaceView != null) mFaceView.setOrientation(degree); 1018 } 1019 1020 @Override 1021 public void onStop() { 1022 super.onStop(); 1023 if (mMediaProviderClient != null) { 1024 mMediaProviderClient.release(); 1025 mMediaProviderClient = null; 1026 } 1027 } 1028 1029 private void checkStorage() { 1030 mPicturesRemaining = Storage.getAvailableSpace(); 1031 if (mPicturesRemaining > 0) { 1032 mPicturesRemaining /= 1500000; 1033 } 1034 updateStorageHint(); 1035 } 1036 1037 @OnClickAttr 1038 public void onThumbnailClicked(View v) { 1039 if (isCameraIdle() && mThumbnail != null) { 1040 showSharePopup(); 1041 } 1042 } 1043 1044 @OnClickAttr 1045 public void onRetakeButtonClicked(View v) { 1046 hidePostCaptureAlert(); 1047 startPreview(); 1048 } 1049 1050 @OnClickAttr 1051 public void onDoneButtonClicked(View v) { 1052 doAttach(); 1053 } 1054 1055 @OnClickAttr 1056 public void onCancelButtonClicked(View v) { 1057 doCancel(); 1058 } 1059 1060 private void doAttach() { 1061 if (mPausing) { 1062 return; 1063 } 1064 1065 byte[] data = mJpegImageData; 1066 1067 if (mCropValue == null) { 1068 // First handle the no crop case -- just return the value. If the 1069 // caller specifies a "save uri" then write the data to it's 1070 // stream. Otherwise, pass back a scaled down version of the bitmap 1071 // directly in the extras. 1072 if (mSaveUri != null) { 1073 OutputStream outputStream = null; 1074 try { 1075 outputStream = mContentResolver.openOutputStream(mSaveUri); 1076 outputStream.write(data); 1077 outputStream.close(); 1078 1079 setResultEx(RESULT_OK); 1080 finish(); 1081 } catch (IOException ex) { 1082 // ignore exception 1083 } finally { 1084 Util.closeSilently(outputStream); 1085 } 1086 } else { 1087 int orientation = Exif.getOrientation(data); 1088 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1089 bitmap = Util.rotate(bitmap, orientation); 1090 setResultEx(RESULT_OK, 1091 new Intent("inline-data").putExtra("data", bitmap)); 1092 finish(); 1093 } 1094 } else { 1095 // Save the image to a temp file and invoke the cropper 1096 Uri tempUri = null; 1097 FileOutputStream tempStream = null; 1098 try { 1099 File path = getFileStreamPath(sTempCropFilename); 1100 path.delete(); 1101 tempStream = openFileOutput(sTempCropFilename, 0); 1102 tempStream.write(data); 1103 tempStream.close(); 1104 tempUri = Uri.fromFile(path); 1105 } catch (FileNotFoundException ex) { 1106 setResultEx(Activity.RESULT_CANCELED); 1107 finish(); 1108 return; 1109 } catch (IOException ex) { 1110 setResultEx(Activity.RESULT_CANCELED); 1111 finish(); 1112 return; 1113 } finally { 1114 Util.closeSilently(tempStream); 1115 } 1116 1117 Bundle newExtras = new Bundle(); 1118 if (mCropValue.equals("circle")) { 1119 newExtras.putString("circleCrop", "true"); 1120 } 1121 if (mSaveUri != null) { 1122 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1123 } else { 1124 newExtras.putBoolean("return-data", true); 1125 } 1126 1127 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1128 1129 cropIntent.setData(tempUri); 1130 cropIntent.putExtras(newExtras); 1131 1132 startActivityForResult(cropIntent, CROP_MSG); 1133 } 1134 } 1135 1136 private void doCancel() { 1137 setResultEx(RESULT_CANCELED, new Intent()); 1138 finish(); 1139 } 1140 1141 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1142 switch (button.getId()) { 1143 case R.id.shutter_button: 1144 doFocus(pressed); 1145 break; 1146 } 1147 } 1148 1149 public void onShutterButtonClick(ShutterButton button) { 1150 switch (button.getId()) { 1151 case R.id.shutter_button: 1152 doSnap(); 1153 break; 1154 } 1155 } 1156 1157 private OnScreenHint mStorageHint; 1158 1159 private void updateStorageHint() { 1160 String noStorageText = null; 1161 1162 if (mPicturesRemaining == Storage.UNAVAILABLE) { 1163 noStorageText = getString(R.string.no_storage); 1164 } else if (mPicturesRemaining == Storage.PREPARING) { 1165 noStorageText = getString(R.string.preparing_sd); 1166 } else if (mPicturesRemaining == Storage.UNKNOWN_SIZE) { 1167 noStorageText = getString(R.string.access_sd_fail); 1168 } else if (mPicturesRemaining < 1L) { 1169 noStorageText = getString(R.string.not_enough_space); 1170 } 1171 1172 if (noStorageText != null) { 1173 if (mStorageHint == null) { 1174 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1175 } else { 1176 mStorageHint.setText(noStorageText); 1177 } 1178 mStorageHint.show(); 1179 } else if (mStorageHint != null) { 1180 mStorageHint.cancel(); 1181 mStorageHint = null; 1182 } 1183 } 1184 1185 private void installIntentFilter() { 1186 // install an intent filter to receive SD card related events. 1187 IntentFilter intentFilter = 1188 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1189 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1190 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1191 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1192 intentFilter.addDataScheme("file"); 1193 registerReceiver(mReceiver, intentFilter); 1194 mDidRegister = true; 1195 } 1196 1197 @Override 1198 protected void onResume() { 1199 super.onResume(); 1200 mPausing = false; 1201 if (mOpenCameraFail || mCameraDisabled) return; 1202 1203 mJpegPictureCallbackTime = 0; 1204 mZoomValue = 0; 1205 1206 // Start the preview if it is not started. 1207 if (mCameraState == PREVIEW_STOPPED) { 1208 try { 1209 mCameraDevice = Util.openCamera(this, mCameraId); 1210 initializeCapabilities(); 1211 resetExposureCompensation(); 1212 startPreview(); 1213 } catch(CameraHardwareException e) { 1214 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1215 return; 1216 } catch(CameraDisabledException e) { 1217 Util.showErrorAndFinish(this, R.string.camera_disabled); 1218 return; 1219 } 1220 } 1221 1222 if (mSurfaceHolder != null) { 1223 // If first time initialization is not finished, put it in the 1224 // message queue. 1225 if (!mFirstTimeInitialized) { 1226 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1227 } else { 1228 initializeSecondTime(); 1229 } 1230 } 1231 keepScreenOnAwhile(); 1232 1233 if (mCameraState == IDLE) { 1234 mOnResumeTime = SystemClock.uptimeMillis(); 1235 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 1236 } 1237 } 1238 1239 @Override 1240 protected void onPause() { 1241 mPausing = true; 1242 stopPreview(); 1243 // Close the camera now because other activities may need to use it. 1244 closeCamera(); 1245 resetScreenOn(); 1246 1247 // Clear UI. 1248 collapseCameraControls(); 1249 if (mSharePopup != null) mSharePopup.dismiss(); 1250 if (mFaceView != null) mFaceView.clear(); 1251 1252 if (mFirstTimeInitialized) { 1253 mOrientationListener.disable(); 1254 if (!mIsImageCaptureIntent) { 1255 if (mThumbnail != null) { 1256 mThumbnail.saveTo(new File(getFilesDir(), Thumbnail.LAST_THUMB_FILENAME)); 1257 } 1258 } 1259 } 1260 1261 if (mDidRegister) { 1262 unregisterReceiver(mReceiver); 1263 mDidRegister = false; 1264 } 1265 mLocationManager.recordLocation(false); 1266 updateExposureOnScreenIndicator(0); 1267 1268 mFocusManager.releaseToneGenerator(); 1269 1270 if (mStorageHint != null) { 1271 mStorageHint.cancel(); 1272 mStorageHint = null; 1273 } 1274 1275 // If we are in an image capture intent and has taken 1276 // a picture, we just clear it in onPause. 1277 mJpegImageData = null; 1278 1279 // Remove the messages in the event queue. 1280 mHandler.removeMessages(FIRST_TIME_INIT); 1281 mHandler.removeMessages(CHECK_DISPLAY_ROTATION); 1282 mFocusManager.removeMessages(); 1283 1284 super.onPause(); 1285 } 1286 1287 @Override 1288 protected void onActivityResult( 1289 int requestCode, int resultCode, Intent data) { 1290 switch (requestCode) { 1291 case CROP_MSG: { 1292 Intent intent = new Intent(); 1293 if (data != null) { 1294 Bundle extras = data.getExtras(); 1295 if (extras != null) { 1296 intent.putExtras(extras); 1297 } 1298 } 1299 setResultEx(resultCode, intent); 1300 finish(); 1301 1302 File path = getFileStreamPath(sTempCropFilename); 1303 path.delete(); 1304 1305 break; 1306 } 1307 } 1308 } 1309 1310 private boolean canTakePicture() { 1311 return isCameraIdle() && (mPicturesRemaining > 0); 1312 } 1313 1314 @Override 1315 public void autoFocus() { 1316 mFocusStartTime = System.currentTimeMillis(); 1317 mCameraDevice.autoFocus(mAutoFocusCallback); 1318 mCameraState = FOCUSING; 1319 enableCameraControls(false); 1320 } 1321 1322 @Override 1323 public void cancelAutoFocus() { 1324 mCameraDevice.cancelAutoFocus(); 1325 mCameraState = IDLE; 1326 enableCameraControls(true); 1327 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1328 } 1329 1330 // Preview area is touched. Handle touch focus. 1331 @Override 1332 public boolean onTouch(View v, MotionEvent e) { 1333 if (mPausing || mCameraDevice == null || !mFirstTimeInitialized 1334 || mCameraState == SNAPSHOT_IN_PROGRESS) { 1335 return false; 1336 } 1337 1338 // Do not trigger touch focus if popup window is opened. 1339 if (collapseCameraControls()) return false; 1340 1341 // Check if metering area or focus area is supported. 1342 if (!mFocusAreaSupported && !mMeteringAreaSupported) return false; 1343 1344 return mFocusManager.onTouch(e); 1345 } 1346 1347 @Override 1348 public void onBackPressed() { 1349 if (!isCameraIdle()) { 1350 // ignore backs while we're taking a picture 1351 return; 1352 } else if (!collapseCameraControls()) { 1353 super.onBackPressed(); 1354 } 1355 } 1356 1357 @Override 1358 public boolean onKeyDown(int keyCode, KeyEvent event) { 1359 switch (keyCode) { 1360 case KeyEvent.KEYCODE_FOCUS: 1361 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1362 doFocus(true); 1363 } 1364 return true; 1365 case KeyEvent.KEYCODE_CAMERA: 1366 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1367 doSnap(); 1368 } 1369 return true; 1370 case KeyEvent.KEYCODE_DPAD_CENTER: 1371 // If we get a dpad center event without any focused view, move 1372 // the focus to the shutter button and press it. 1373 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1374 // Start auto-focus immediately to reduce shutter lag. After 1375 // the shutter button gets the focus, doFocus() will be 1376 // called again but it is fine. 1377 if (collapseCameraControls()) return true; 1378 doFocus(true); 1379 if (mShutterButton.isInTouchMode()) { 1380 mShutterButton.requestFocusFromTouch(); 1381 } else { 1382 mShutterButton.requestFocus(); 1383 } 1384 mShutterButton.setPressed(true); 1385 } 1386 return true; 1387 } 1388 1389 return super.onKeyDown(keyCode, event); 1390 } 1391 1392 @Override 1393 public boolean onKeyUp(int keyCode, KeyEvent event) { 1394 switch (keyCode) { 1395 case KeyEvent.KEYCODE_FOCUS: 1396 if (mFirstTimeInitialized) { 1397 doFocus(false); 1398 } 1399 return true; 1400 } 1401 return super.onKeyUp(keyCode, event); 1402 } 1403 1404 private void doSnap() { 1405 if (mPausing || collapseCameraControls()) return; 1406 1407 // Do not take the picture if there is not enough storage. 1408 if (mPicturesRemaining <= 0) { 1409 Log.i(TAG, "Not enough space or storage not ready. remaining=" + mPicturesRemaining); 1410 return; 1411 } 1412 1413 Log.v(TAG, "doSnap: mCameraState=" + mCameraState); 1414 mFocusManager.doSnap(); 1415 } 1416 1417 private void doFocus(boolean pressed) { 1418 if (mPausing || collapseCameraControls() || mCameraState == SNAPSHOT_IN_PROGRESS) return; 1419 1420 // Do not do focus if there is not enough storage. 1421 if (pressed && !canTakePicture()) return; 1422 1423 // Lock AE and AWB so users can half-press shutter and recompose. 1424 mAeAwbLock = pressed; 1425 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1426 mFocusManager.doFocus(pressed); 1427 } 1428 1429 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1430 // Make sure we have a surface in the holder before proceeding. 1431 if (holder.getSurface() == null) { 1432 Log.d(TAG, "holder.getSurface() == null"); 1433 return; 1434 } 1435 1436 Log.v(TAG, "surfaceChanged. w=" + w + ". h=" + h); 1437 1438 // We need to save the holder for later use, even when the mCameraDevice 1439 // is null. This could happen if onResume() is invoked after this 1440 // function. 1441 mSurfaceHolder = holder; 1442 1443 // The mCameraDevice will be null if it fails to connect to the camera 1444 // hardware. In this case we will show a dialog and then finish the 1445 // activity, so it's OK to ignore it. 1446 if (mCameraDevice == null) return; 1447 1448 // Sometimes surfaceChanged is called after onPause or before onResume. 1449 // Ignore it. 1450 if (mPausing || isFinishing()) return; 1451 1452 // Set preview display if the surface is being created. Preview was 1453 // already started. Also restart the preview if display rotation has 1454 // changed. Sometimes this happens when the device is held in portrait 1455 // and camera app is opened. Rotation animation takes some time and 1456 // display rotation in onCreate may not be what we want. 1457 if (mCameraState != PREVIEW_STOPPED 1458 && (Util.getDisplayRotation(this) == mDisplayRotation) 1459 && holder.isCreating()) { 1460 // Set preview display if the surface is being created and preview 1461 // was already started. That means preview display was set to null 1462 // and we need to set it now. 1463 setPreviewDisplay(holder); 1464 } else { 1465 // 1. Restart the preview if the size of surface was changed. The 1466 // framework may not support changing preview display on the fly. 1467 // 2. Start the preview now if surface was destroyed and preview 1468 // stopped. 1469 startPreview(); 1470 } 1471 1472 // If first time initialization is not finished, send a message to do 1473 // it later. We want to finish surfaceChanged as soon as possible to let 1474 // user see preview first. 1475 if (!mFirstTimeInitialized) { 1476 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1477 } else { 1478 initializeSecondTime(); 1479 } 1480 } 1481 1482 public void surfaceCreated(SurfaceHolder holder) { 1483 } 1484 1485 public void surfaceDestroyed(SurfaceHolder holder) { 1486 stopPreview(); 1487 mSurfaceHolder = null; 1488 } 1489 1490 private void closeCamera() { 1491 if (mCameraDevice != null) { 1492 CameraHolder.instance().release(); 1493 mCameraDevice.setZoomChangeListener(null); 1494 mCameraDevice.setFaceDetectionListener(null); 1495 mCameraDevice = null; 1496 mCameraState = PREVIEW_STOPPED; 1497 mFocusManager.onCameraReleased(); 1498 } 1499 } 1500 1501 private void setPreviewDisplay(SurfaceHolder holder) { 1502 try { 1503 mCameraDevice.setPreviewDisplay(holder); 1504 } catch (Throwable ex) { 1505 closeCamera(); 1506 throw new RuntimeException("setPreviewDisplay failed", ex); 1507 } 1508 } 1509 1510 private void startPreview() { 1511 if (mPausing || isFinishing()) return; 1512 1513 mFocusManager.resetTouchFocus(); 1514 1515 mCameraDevice.setErrorCallback(mErrorCallback); 1516 1517 // If we're previewing already, stop the preview first (this will blank 1518 // the screen). 1519 if (mCameraState != PREVIEW_STOPPED) stopPreview(); 1520 1521 setPreviewDisplay(mSurfaceHolder); 1522 mDisplayRotation = Util.getDisplayRotation(this); 1523 mDisplayOrientation = Util.getDisplayOrientation(mDisplayRotation, mCameraId); 1524 mCameraDevice.setDisplayOrientation(mDisplayOrientation); 1525 if (mFaceView != null) { 1526 mFaceView.setDisplayOrientation(mDisplayOrientation); 1527 } 1528 mAeAwbLock = false; // Always unlock AE and AWB before start. 1529 setCameraParameters(UPDATE_PARAM_ALL); 1530 1531 try { 1532 Log.v(TAG, "startPreview"); 1533 mCameraDevice.startPreview(); 1534 } catch (Throwable ex) { 1535 closeCamera(); 1536 throw new RuntimeException("startPreview failed", ex); 1537 } 1538 1539 startFaceDetection(); 1540 mZoomState = ZOOM_STOPPED; 1541 mCameraState = IDLE; 1542 mFocusManager.onPreviewStarted(); 1543 } 1544 1545 private void stopPreview() { 1546 if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) { 1547 Log.v(TAG, "stopPreview"); 1548 mCameraDevice.stopPreview(); 1549 } 1550 mCameraState = PREVIEW_STOPPED; 1551 mFocusManager.onPreviewStopped(); 1552 } 1553 1554 private static boolean isSupported(String value, List<String> supported) { 1555 return supported == null ? false : supported.indexOf(value) >= 0; 1556 } 1557 1558 private void updateCameraParametersInitialize() { 1559 // Reset preview frame rate to the maximum because it may be lowered by 1560 // video camera application. 1561 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1562 if (frameRates != null) { 1563 Integer max = Collections.max(frameRates); 1564 mParameters.setPreviewFrameRate(max); 1565 } 1566 1567 mParameters.setRecordingHint(false); 1568 } 1569 1570 private void updateCameraParametersZoom() { 1571 // Set zoom. 1572 if (mParameters.isZoomSupported()) { 1573 mParameters.setZoom(mZoomValue); 1574 } 1575 } 1576 1577 private void updateCameraParametersPreference() { 1578 if (mAwbLockSupported) { 1579 mParameters.setAutoWhiteBalanceLock(mAeAwbLock); 1580 } 1581 1582 if (mAeLockSupported) { 1583 mParameters.setAutoExposureLock(mAeAwbLock); 1584 } 1585 1586 if (mFocusAreaSupported) { 1587 mParameters.setFocusAreas(mFocusManager.getTapArea()); 1588 } 1589 1590 if (mMeteringAreaSupported) { 1591 // Use the same area for focus and metering. 1592 mParameters.setMeteringAreas(mFocusManager.getTapArea()); 1593 } 1594 1595 // Set picture size. 1596 String pictureSize = mPreferences.getString( 1597 CameraSettings.KEY_PICTURE_SIZE, null); 1598 if (pictureSize == null) { 1599 CameraSettings.initialCameraPictureSize(this, mParameters); 1600 } else { 1601 List<Size> supported = mParameters.getSupportedPictureSizes(); 1602 CameraSettings.setCameraPictureSize( 1603 pictureSize, supported, mParameters); 1604 } 1605 1606 // Set the preview frame aspect ratio according to the picture size. 1607 Size size = mParameters.getPictureSize(); 1608 1609 mPreviewPanel = findViewById(R.id.frame_layout); 1610 mPreviewFrameLayout = (PreviewFrameLayout) findViewById(R.id.frame); 1611 mPreviewFrameLayout.setAspectRatio((double) size.width / size.height); 1612 1613 // Set a preview size that is closest to the viewfinder height and has 1614 // the right aspect ratio. 1615 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1616 Size optimalSize = Util.getOptimalPreviewSize(this, 1617 sizes, (double) size.width / size.height); 1618 Size original = mParameters.getPreviewSize(); 1619 if (!original.equals(optimalSize)) { 1620 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1621 1622 // Zoom related settings will be changed for different preview 1623 // sizes, so set and read the parameters to get lastest values 1624 mCameraDevice.setParameters(mParameters); 1625 mParameters = mCameraDevice.getParameters(); 1626 } 1627 Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height); 1628 1629 // Since change scene mode may change supported values, 1630 // Set scene mode first, 1631 mSceneMode = mPreferences.getString( 1632 CameraSettings.KEY_SCENE_MODE, 1633 getString(R.string.pref_camera_scenemode_default)); 1634 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 1635 if (!mParameters.getSceneMode().equals(mSceneMode)) { 1636 mParameters.setSceneMode(mSceneMode); 1637 mCameraDevice.setParameters(mParameters); 1638 1639 // Setting scene mode will change the settings of flash mode, 1640 // white balance, and focus mode. Here we read back the 1641 // parameters, so we can know those settings. 1642 mParameters = mCameraDevice.getParameters(); 1643 } 1644 } else { 1645 mSceneMode = mParameters.getSceneMode(); 1646 if (mSceneMode == null) { 1647 mSceneMode = Parameters.SCENE_MODE_AUTO; 1648 } 1649 } 1650 1651 // Set JPEG quality. 1652 int jpegQuality = CameraProfile.getJpegEncodingQualityParameter(mCameraId, 1653 CameraProfile.QUALITY_HIGH); 1654 mParameters.setJpegQuality(jpegQuality); 1655 1656 // For the following settings, we need to check if the settings are 1657 // still supported by latest driver, if not, ignore the settings. 1658 1659 // Set exposure compensation 1660 int value = CameraSettings.readExposure(mPreferences); 1661 int max = mParameters.getMaxExposureCompensation(); 1662 int min = mParameters.getMinExposureCompensation(); 1663 if (value >= min && value <= max) { 1664 mParameters.setExposureCompensation(value); 1665 } else { 1666 Log.w(TAG, "invalid exposure range: " + value); 1667 } 1668 1669 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1670 // Set flash mode. 1671 String flashMode = mPreferences.getString( 1672 CameraSettings.KEY_FLASH_MODE, 1673 getString(R.string.pref_camera_flashmode_default)); 1674 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 1675 if (isSupported(flashMode, supportedFlash)) { 1676 mParameters.setFlashMode(flashMode); 1677 } else { 1678 flashMode = mParameters.getFlashMode(); 1679 if (flashMode == null) { 1680 flashMode = getString( 1681 R.string.pref_camera_flashmode_no_flash); 1682 } 1683 } 1684 1685 // Set white balance parameter. 1686 String whiteBalance = mPreferences.getString( 1687 CameraSettings.KEY_WHITE_BALANCE, 1688 getString(R.string.pref_camera_whitebalance_default)); 1689 if (isSupported(whiteBalance, 1690 mParameters.getSupportedWhiteBalance())) { 1691 mParameters.setWhiteBalance(whiteBalance); 1692 } else { 1693 whiteBalance = mParameters.getWhiteBalance(); 1694 if (whiteBalance == null) { 1695 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 1696 } 1697 } 1698 1699 // Set focus mode. 1700 mFocusManager.overrideFocusMode(null); 1701 mParameters.setFocusMode(mFocusManager.getFocusMode()); 1702 } else { 1703 mFocusManager.overrideFocusMode(mParameters.getFocusMode()); 1704 } 1705 } 1706 1707 // We separate the parameters into several subsets, so we can update only 1708 // the subsets actually need updating. The PREFERENCE set needs extra 1709 // locking because the preference can be changed from GLThread as well. 1710 private void setCameraParameters(int updateSet) { 1711 mParameters = mCameraDevice.getParameters(); 1712 1713 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 1714 updateCameraParametersInitialize(); 1715 } 1716 1717 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 1718 updateCameraParametersZoom(); 1719 } 1720 1721 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 1722 updateCameraParametersPreference(); 1723 } 1724 1725 mCameraDevice.setParameters(mParameters); 1726 } 1727 1728 // If the Camera is idle, update the parameters immediately, otherwise 1729 // accumulate them in mUpdateSet and update later. 1730 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 1731 mUpdateSet |= additionalUpdateSet; 1732 if (mCameraDevice == null) { 1733 // We will update all the parameters when we open the device, so 1734 // we don't need to do anything now. 1735 mUpdateSet = 0; 1736 return; 1737 } else if (isCameraIdle()) { 1738 setCameraParameters(mUpdateSet); 1739 updateSceneModeUI(); 1740 mUpdateSet = 0; 1741 } else { 1742 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 1743 mHandler.sendEmptyMessageDelayed( 1744 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 1745 } 1746 } 1747 } 1748 1749 private void gotoGallery() { 1750 MenuHelper.gotoCameraImageGallery(this); 1751 } 1752 1753 private boolean isCameraIdle() { 1754 return (mCameraState == IDLE) || (mFocusManager.isFocusCompleted()); 1755 } 1756 1757 private boolean isImageCaptureIntent() { 1758 String action = getIntent().getAction(); 1759 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 1760 } 1761 1762 private void setupCaptureParams() { 1763 Bundle myExtras = getIntent().getExtras(); 1764 if (myExtras != null) { 1765 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 1766 mCropValue = myExtras.getString("crop"); 1767 } 1768 } 1769 1770 private void showPostCaptureAlert() { 1771 if (mIsImageCaptureIntent) { 1772 Util.fadeOut(mIndicatorControlContainer); 1773 Util.fadeOut(mShutterButton); 1774 1775 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1776 for (int id : pickIds) { 1777 Util.fadeIn(findViewById(id)); 1778 } 1779 } 1780 } 1781 1782 private void hidePostCaptureAlert() { 1783 if (mIsImageCaptureIntent) { 1784 enableCameraControls(true); 1785 1786 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1787 for (int id : pickIds) { 1788 Util.fadeOut(findViewById(id)); 1789 } 1790 1791 Util.fadeIn(mShutterButton); 1792 Util.fadeIn(mIndicatorControlContainer); 1793 } 1794 } 1795 1796 @Override 1797 public boolean onPrepareOptionsMenu(Menu menu) { 1798 super.onPrepareOptionsMenu(menu); 1799 // Only show the menu when camera is idle. 1800 for (int i = 0; i < menu.size(); i++) { 1801 menu.getItem(i).setVisible(isCameraIdle()); 1802 } 1803 1804 return true; 1805 } 1806 1807 @Override 1808 public boolean onCreateOptionsMenu(Menu menu) { 1809 super.onCreateOptionsMenu(menu); 1810 1811 if (mIsImageCaptureIntent) { 1812 // No options menu for attach mode. 1813 return false; 1814 } else { 1815 addBaseMenuItems(menu); 1816 } 1817 return true; 1818 } 1819 1820 private void addBaseMenuItems(Menu menu) { 1821 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_VIDEO, new Runnable() { 1822 public void run() { 1823 switchToOtherMode(ModePicker.MODE_VIDEO); 1824 } 1825 }); 1826 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_PANORAMA, new Runnable() { 1827 public void run() { 1828 switchToOtherMode(ModePicker.MODE_PANORAMA); 1829 } 1830 }); 1831 MenuItem gallery = menu.add(R.string.camera_gallery_photos_text) 1832 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1833 public boolean onMenuItemClick(MenuItem item) { 1834 gotoGallery(); 1835 return true; 1836 } 1837 }); 1838 gallery.setIcon(android.R.drawable.ic_menu_gallery); 1839 mGalleryItems.add(gallery); 1840 1841 if (mNumberOfCameras > 1) { 1842 menu.add(R.string.switch_camera_id) 1843 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1844 public boolean onMenuItemClick(MenuItem item) { 1845 CameraSettings.writePreferredCameraId(mPreferences, 1846 ((mCameraId == mFrontCameraId) 1847 ? mBackCameraId : mFrontCameraId)); 1848 onSharedPreferenceChanged(); 1849 return true; 1850 } 1851 }).setIcon(android.R.drawable.ic_menu_camera); 1852 } 1853 } 1854 1855 private boolean switchToOtherMode(int mode) { 1856 if (isFinishing() || !isCameraIdle()) return false; 1857 MenuHelper.gotoMode(mode, Camera.this); 1858 mHandler.removeMessages(FIRST_TIME_INIT); 1859 finish(); 1860 return true; 1861 } 1862 1863 public boolean onModeChanged(int mode) { 1864 if (mode != ModePicker.MODE_CAMERA) { 1865 return switchToOtherMode(mode); 1866 } else { 1867 return true; 1868 } 1869 } 1870 1871 public void onSharedPreferenceChanged() { 1872 // ignore the events after "onPause()" 1873 if (mPausing) return; 1874 1875 boolean recordLocation = RecordLocationPreference.get( 1876 mPreferences, getContentResolver()); 1877 mLocationManager.recordLocation(recordLocation); 1878 1879 int cameraId = CameraSettings.readPreferredCameraId(mPreferences); 1880 if (mCameraId != cameraId) { 1881 // Restart the activity to have a crossfade animation. 1882 // TODO: Use SurfaceTexture to implement a better and faster 1883 // animation. 1884 if (mIsImageCaptureIntent) { 1885 // If the intent is camera capture, stay in camera capture mode. 1886 MenuHelper.gotoCameraMode(this, getIntent()); 1887 } else { 1888 MenuHelper.gotoCameraMode(this); 1889 } 1890 1891 finish(); 1892 } else { 1893 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 1894 } 1895 1896 int exposureValue = CameraSettings.readExposure(mPreferences); 1897 updateExposureOnScreenIndicator(exposureValue); 1898 } 1899 1900 @Override 1901 public void onUserInteraction() { 1902 super.onUserInteraction(); 1903 keepScreenOnAwhile(); 1904 } 1905 1906 private void resetScreenOn() { 1907 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 1908 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1909 } 1910 1911 private void keepScreenOnAwhile() { 1912 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 1913 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1914 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 1915 } 1916 1917 public void onRestorePreferencesClicked() { 1918 if (mPausing) return; 1919 Runnable runnable = new Runnable() { 1920 public void run() { 1921 restorePreferences(); 1922 } 1923 }; 1924 MenuHelper.confirmAction(this, 1925 getString(R.string.confirm_restore_title), 1926 getString(R.string.confirm_restore_message), 1927 runnable); 1928 } 1929 1930 private void restorePreferences() { 1931 // Reset the zoom. Zoom value is not stored in preference. 1932 if (mParameters.isZoomSupported()) { 1933 mZoomValue = 0; 1934 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 1935 mZoomControl.setZoomIndex(0); 1936 } 1937 if (mIndicatorControlContainer != null) { 1938 mIndicatorControlContainer.dismissSettingPopup(); 1939 CameraSettings.restorePreferences(Camera.this, mPreferences, 1940 mParameters); 1941 mIndicatorControlContainer.reloadPreferences(); 1942 onSharedPreferenceChanged(); 1943 } 1944 } 1945 1946 public void onOverriddenPreferencesClicked() { 1947 if (mPausing) return; 1948 if (mNotSelectableToast == null) { 1949 String str = getResources().getString(R.string.not_selectable_in_scene_mode); 1950 mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT); 1951 } 1952 mNotSelectableToast.show(); 1953 } 1954 1955 private void showSharePopup() { 1956 Uri uri = mThumbnail.getUri(); 1957 if (mSharePopup == null || !uri.equals(mSharePopup.getUri())) { 1958 // SharePopup window takes the mPreviewPanel as its size reference. 1959 mSharePopup = new SharePopup(this, uri, mThumbnail.getBitmap(), 1960 mOrientationCompensation, mPreviewPanel); 1961 } 1962 mSharePopup.showAtLocation(mThumbnailView, Gravity.NO_GRAVITY, 0, 0); 1963 } 1964 1965 @Override 1966 public void onFaceDetection(Face[] faces, android.hardware.Camera camera) { 1967 mFaceView.setFaces(faces); 1968 } 1969 1970 private void showTapToFocusToast() { 1971 // Show the toast. 1972 RotateLayout v = (RotateLayout) findViewById(R.id.tap_to_focus_prompt); 1973 v.setOrientation(mOrientationCompensation); 1974 v.startAnimation(AnimationUtils.loadAnimation(this, R.anim.on_screen_hint_enter)); 1975 v.setVisibility(View.VISIBLE); 1976 mHandler.sendEmptyMessageDelayed(DISMISS_TAP_TO_FOCUS_TOAST, 5000); 1977 // Clear the preference. 1978 Editor editor = mPreferences.edit(); 1979 editor.putBoolean(CameraSettings.KEY_TAP_TO_FOCUS_PROMPT_SHOWN, false); 1980 editor.apply(); 1981 } 1982 1983 private void initializeCapabilities() { 1984 mInitialParams = mCameraDevice.getParameters(); 1985 mFocusManager.initializeParameters(mInitialParams); 1986 mFocusAreaSupported = (mInitialParams.getMaxNumFocusAreas() > 0 1987 && isSupported(Parameters.FOCUS_MODE_AUTO, 1988 mInitialParams.getSupportedFocusModes())); 1989 mMeteringAreaSupported = (mInitialParams.getMaxNumMeteringAreas() > 0); 1990 mAwbLockSupported = mInitialParams.isAutoWhiteBalanceLockSupported(); 1991 mAeLockSupported = mInitialParams.isAutoExposureLockSupported(); 1992 } 1993} 1994