Camera.java revision 46f4430b50ba8ca8b04b698d45d9ca2d4513121d
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.Collections; 75import java.util.Formatter; 76import java.util.List; 77 78/** The Camera activity which can preview and take pictures. */ 79public class Camera extends ActivityBase implements FocusManager.Listener, 80 View.OnTouchListener, ShutterButton.OnShutterButtonListener, 81 SurfaceHolder.Callback, ModePicker.OnModeChangeListener, 82 FaceDetectionListener, CameraPreference.OnPreferenceChangedListener, 83 LocationManager.Listener { 84 85 private static final String TAG = "camera"; 86 87 private static final int CROP_MSG = 1; 88 private static final int FIRST_TIME_INIT = 2; 89 private static final int CLEAR_SCREEN_DELAY = 3; 90 private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 4; 91 private static final int CHECK_DISPLAY_ROTATION = 5; 92 private static final int SHOW_TAP_TO_FOCUS_TOAST = 6; 93 private static final int DISMISS_TAP_TO_FOCUS_TOAST = 7; 94 95 // The subset of parameters we need to update in setCameraParameters(). 96 private static final int UPDATE_PARAM_INITIALIZE = 1; 97 private static final int UPDATE_PARAM_ZOOM = 2; 98 private static final int UPDATE_PARAM_PREFERENCE = 4; 99 private static final int UPDATE_PARAM_ALL = -1; 100 101 // When setCameraParametersWhenIdle() is called, we accumulate the subsets 102 // needed to be updated in mUpdateSet. 103 private int mUpdateSet; 104 105 private static final int SCREEN_DELAY = 2 * 60 * 1000; 106 107 private static final int ZOOM_STOPPED = 0; 108 private static final int ZOOM_START = 1; 109 private static final int ZOOM_STOPPING = 2; 110 111 private int mZoomState = ZOOM_STOPPED; 112 private boolean mSmoothZoomSupported = false; 113 private int mZoomValue; // The current zoom value. 114 private int mZoomMax; 115 private int mTargetZoomValue; 116 private ZoomControl mZoomControl; 117 118 private Parameters mParameters; 119 private Parameters mInitialParams; 120 private boolean mFocusAreaSupported; 121 private boolean mMeteringAreaSupported; 122 private boolean mAwbLockSupported; 123 private boolean mAeLockSupported; 124 private boolean mAeAwbLock; 125 126 private MyOrientationEventListener mOrientationListener; 127 // The degrees of the device rotated clockwise from its natural orientation. 128 private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 129 // The orientation compensation for icons and thumbnails. Ex: if the value 130 // is 90, the UI components should be rotated 90 degrees counter-clockwise. 131 private int mOrientationCompensation = 0; 132 private ComboPreferences mPreferences; 133 134 private static final String sTempCropFilename = "crop-temp"; 135 136 private android.hardware.Camera mCameraDevice; 137 private ContentProviderClient mMediaProviderClient; 138 private SurfaceHolder mSurfaceHolder = null; 139 private ShutterButton mShutterButton; 140 private GestureDetector mPopupGestureDetector; 141 private boolean mOpenCameraFail = false; 142 private boolean mCameraDisabled = false; 143 144 private View mPreviewPanel; // The container of PreviewFrameLayout. 145 private PreviewFrameLayout mPreviewFrameLayout; 146 private View mPreviewFrame; // Preview frame area. 147 148 // A popup window that contains a bigger thumbnail and a list of apps to share. 149 private SharePopup mSharePopup; 150 // The bitmap of the last captured picture thumbnail and the URI of the 151 // original picture. 152 private Thumbnail mThumbnail; 153 // An imageview showing showing the last captured picture thumbnail. 154 private RotateImageView mThumbnailView; 155 private ModePicker mModePicker; 156 private FaceView mFaceView; 157 private RotateLayout mFocusIndicator; 158 159 // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. 160 private String mCropValue; 161 private Uri mSaveUri; 162 163 // On-screen indicator 164 private View mGpsNoSignalIndicator; 165 private View mGpsHasSignalIndicator; 166 private TextView mExposureIndicator; 167 168 private final StringBuilder mBuilder = new StringBuilder(); 169 private final Formatter mFormatter = new Formatter(mBuilder); 170 private final Object[] mFormatterArgs = new Object[1]; 171 172 /** 173 * An unpublished intent flag requesting to return as soon as capturing 174 * is completed. 175 * 176 * TODO: consider publishing by moving into MediaStore. 177 */ 178 private final static String EXTRA_QUICK_CAPTURE = 179 "android.intent.extra.quickCapture"; 180 181 // The display rotation in degrees. This is only valid when mCameraState is 182 // not PREVIEW_STOPPED. 183 private int mDisplayRotation; 184 // The value for android.hardware.Camera.setDisplayOrientation. 185 private int mDisplayOrientation; 186 private boolean mPausing; 187 private boolean mFirstTimeInitialized; 188 private boolean mIsImageCaptureIntent; 189 190 private static final int PREVIEW_STOPPED = 0; 191 private static final int IDLE = 1; // preview is active 192 // Focus is in progress. The exact focus state is in Focus.java. 193 private static final int FOCUSING = 2; 194 private static final int SNAPSHOT_IN_PROGRESS = 3; 195 private int mCameraState = PREVIEW_STOPPED; 196 197 private ContentResolver mContentResolver; 198 private boolean mDidRegister = false; 199 200 private LocationManager mLocationManager; 201 202 private final ShutterCallback mShutterCallback = new ShutterCallback(); 203 private final PostViewPictureCallback mPostViewPictureCallback = 204 new PostViewPictureCallback(); 205 private final RawPictureCallback mRawPictureCallback = 206 new RawPictureCallback(); 207 private final AutoFocusCallback mAutoFocusCallback = 208 new AutoFocusCallback(); 209 private final ZoomListener mZoomListener = new ZoomListener(); 210 private final CameraErrorCallback mErrorCallback = new CameraErrorCallback(); 211 212 private long mFocusStartTime; 213 private long mCaptureStartTime; 214 private long mShutterCallbackTime; 215 private long mPostViewPictureCallbackTime; 216 private long mRawPictureCallbackTime; 217 private long mJpegPictureCallbackTime; 218 private long mOnResumeTime; 219 private long mPicturesRemaining; 220 private byte[] mJpegImageData; 221 222 // These latency time are for the CameraLatency test. 223 public long mAutoFocusTime; 224 public long mShutterLag; 225 public long mShutterToPictureDisplayedTime; 226 public long mPictureDisplayedToJpegCallbackTime; 227 public long mJpegCallbackFinishTime; 228 229 // This handles everything about focus. 230 private FocusManager mFocusManager; 231 private String mSceneMode; 232 private Toast mNotSelectableToast; 233 private Toast mNoShareToast; 234 235 private final Handler mHandler = new MainHandler(); 236 private IndicatorControlContainer mIndicatorControlContainer; 237 private PreferenceGroup mPreferenceGroup; 238 239 // multiple cameras support 240 private int mNumberOfCameras; 241 private int mCameraId; 242 private int mFrontCameraId; 243 private int mBackCameraId; 244 245 private boolean mQuickCapture; 246 247 /** 248 * This Handler is used to post message back onto the main thread of the 249 * application 250 */ 251 private class MainHandler extends Handler { 252 @Override 253 public void handleMessage(Message msg) { 254 switch (msg.what) { 255 case CLEAR_SCREEN_DELAY: { 256 getWindow().clearFlags( 257 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 258 break; 259 } 260 261 case FIRST_TIME_INIT: { 262 initializeFirstTime(); 263 break; 264 } 265 266 case SET_CAMERA_PARAMETERS_WHEN_IDLE: { 267 setCameraParametersWhenIdle(0); 268 break; 269 } 270 271 case CHECK_DISPLAY_ROTATION: { 272 // Restart the preview if display rotation has changed. 273 // Sometimes this happens when the device is held upside 274 // down and camera app is opened. Rotation animation will 275 // take some time and the rotation value we have got may be 276 // wrong. Framework does not have a callback for this now. 277 if (Util.getDisplayRotation(Camera.this) != mDisplayRotation 278 && isCameraIdle()) { 279 startPreview(); 280 } 281 if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) { 282 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 283 } 284 break; 285 } 286 287 case SHOW_TAP_TO_FOCUS_TOAST: { 288 showTapToFocusToast(); 289 break; 290 } 291 292 case DISMISS_TAP_TO_FOCUS_TOAST: { 293 View v = findViewById(R.id.tap_to_focus_prompt); 294 v.setVisibility(View.GONE); 295 v.setAnimation(AnimationUtils.loadAnimation(Camera.this, 296 R.anim.on_screen_hint_exit)); 297 break; 298 } 299 } 300 } 301 } 302 303 private void resetExposureCompensation() { 304 String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, 305 CameraSettings.EXPOSURE_DEFAULT_VALUE); 306 if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { 307 Editor editor = mPreferences.edit(); 308 editor.putString(CameraSettings.KEY_EXPOSURE, "0"); 309 editor.apply(); 310 if (mIndicatorControlContainer != null) { 311 mIndicatorControlContainer.reloadPreferences(); 312 } 313 } 314 } 315 316 private void keepMediaProviderInstance() { 317 // We want to keep a reference to MediaProvider in camera's lifecycle. 318 // TODO: Utilize mMediaProviderClient instance to replace 319 // ContentResolver calls. 320 if (mMediaProviderClient == null) { 321 mMediaProviderClient = getContentResolver() 322 .acquireContentProviderClient(MediaStore.AUTHORITY); 323 } 324 } 325 326 // Snapshots can only be taken after this is called. It should be called 327 // once only. We could have done these things in onCreate() but we want to 328 // make preview screen appear as soon as possible. 329 private void initializeFirstTime() { 330 if (mFirstTimeInitialized) return; 331 332 // Create orientation listenter. This should be done first because it 333 // takes some time to get first orientation. 334 mOrientationListener = new MyOrientationEventListener(Camera.this); 335 mOrientationListener.enable(); 336 337 // Initialize location sevice. 338 boolean recordLocation = RecordLocationPreference.get( 339 mPreferences, getContentResolver()); 340 initOnScreenIndicator(); 341 mLocationManager.recordLocation(recordLocation); 342 343 keepMediaProviderInstance(); 344 checkStorage(); 345 346 // Initialize last picture button. 347 mContentResolver = getContentResolver(); 348 if (!mIsImageCaptureIntent) { // no thumbnail in image capture intent 349 initThumbnailButton(); 350 } 351 352 // Initialize shutter button. 353 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 354 mShutterButton.setOnShutterButtonListener(this); 355 mShutterButton.setVisibility(View.VISIBLE); 356 357 // Initialize focus UI. 358 mPreviewFrame = findViewById(R.id.camera_preview); 359 mPreviewFrame.setOnTouchListener(this); 360 mFocusIndicator = (RotateLayout) findViewById(R.id.focus_indicator_rotate_layout); 361 mFocusManager.initialize(mFocusIndicator, mPreviewFrame, mFaceView, this); 362 mFocusManager.initializeToneGenerator(); 363 Util.initializeScreenBrightness(getWindow(), getContentResolver()); 364 installIntentFilter(); 365 initializeZoom(); 366 // Show the tap to focus toast if this is the first start. 367 if (mFocusAreaSupported && 368 mPreferences.getBoolean(CameraSettings.KEY_TAP_TO_FOCUS_PROMPT_SHOWN, true)) { 369 // Delay the toast for one second to wait for orientation. 370 mHandler.sendEmptyMessageDelayed(SHOW_TAP_TO_FOCUS_TOAST, 1000); 371 } 372 373 mFirstTimeInitialized = true; 374 addIdleHandler(); 375 } 376 377 private void addIdleHandler() { 378 MessageQueue queue = Looper.myQueue(); 379 queue.addIdleHandler(new MessageQueue.IdleHandler() { 380 public boolean queueIdle() { 381 Storage.ensureOSXCompatible(); 382 return false; 383 } 384 }); 385 } 386 387 private void initThumbnailButton() { 388 // Load the thumbnail from the disk. 389 mThumbnail = Thumbnail.loadFrom(new File(getFilesDir(), Thumbnail.LAST_THUMB_FILENAME)); 390 updateThumbnailButton(); 391 } 392 393 private void updateThumbnailButton() { 394 // Update last image if URI is invalid and the storage is ready. 395 if ((mThumbnail == null || !Util.isUriValid(mThumbnail.getUri(), mContentResolver)) 396 && mPicturesRemaining >= 0) { 397 mThumbnail = Thumbnail.getLastThumbnail(mContentResolver); 398 } 399 if (mThumbnail != null) { 400 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 401 } else { 402 mThumbnailView.setBitmap(null); 403 } 404 } 405 406 // If the activity is paused and resumed, this method will be called in 407 // onResume. 408 private void initializeSecondTime() { 409 // Start orientation listener as soon as possible because it takes 410 // some time to get first orientation. 411 mOrientationListener.enable(); 412 413 // Start location update if needed. 414 boolean recordLocation = RecordLocationPreference.get( 415 mPreferences, getContentResolver()); 416 mLocationManager.recordLocation(recordLocation); 417 418 installIntentFilter(); 419 mFocusManager.initializeToneGenerator(); 420 initializeZoom(); 421 keepMediaProviderInstance(); 422 checkStorage(); 423 hidePostCaptureAlert(); 424 425 if (!mIsImageCaptureIntent) { 426 updateThumbnailButton(); 427 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 428 } 429 } 430 431 private class ZoomChangeListener implements ZoomControl.OnZoomChangedListener { 432 // only for immediate zoom 433 @Override 434 public void onZoomValueChanged(int index) { 435 Camera.this.onZoomValueChanged(index); 436 } 437 438 // only for smooth zoom 439 @Override 440 public void onZoomStateChanged(int state) { 441 if (mPausing) return; 442 443 Log.v(TAG, "zoom picker state=" + state); 444 if (state == ZoomControl.ZOOM_IN) { 445 Camera.this.onZoomValueChanged(mZoomMax); 446 } else if (state == ZoomControl.ZOOM_OUT) { 447 Camera.this.onZoomValueChanged(0); 448 } else { 449 mTargetZoomValue = -1; 450 if (mZoomState == ZOOM_START) { 451 mZoomState = ZOOM_STOPPING; 452 mCameraDevice.stopSmoothZoom(); 453 } 454 } 455 } 456 } 457 458 private void initializeZoom() { 459 if (!mParameters.isZoomSupported()) return; 460 mZoomMax = mParameters.getMaxZoom(); 461 // Currently we use immediate zoom for fast zooming to get better UX and 462 // there is no plan to take advantage of the smooth zoom. 463 mZoomControl.setZoomMax(mZoomMax); 464 mZoomControl.setZoomIndex(mParameters.getZoom()); 465 mZoomControl.setSmoothZoomSupported(mSmoothZoomSupported); 466 mZoomControl.setOnZoomChangeListener(new ZoomChangeListener()); 467 mCameraDevice.setZoomChangeListener(mZoomListener); 468 } 469 470 private void onZoomValueChanged(int index) { 471 // Not useful to change zoom value when the activity is paused. 472 if (mPausing) return; 473 474 if (mSmoothZoomSupported) { 475 if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { 476 mTargetZoomValue = index; 477 if (mZoomState == ZOOM_START) { 478 mZoomState = ZOOM_STOPPING; 479 mCameraDevice.stopSmoothZoom(); 480 } 481 } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { 482 mTargetZoomValue = index; 483 mCameraDevice.startSmoothZoom(index); 484 mZoomState = ZOOM_START; 485 } 486 } else { 487 mZoomValue = index; 488 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 489 } 490 } 491 492 @Override 493 public void startFaceDetection() { 494 if (mParameters.getMaxNumDetectedFaces() > 0) { 495 mFaceView = (FaceView) findViewById(R.id.face_view); 496 mFaceView.clear(); 497 mFaceView.setVisibility(View.VISIBLE); 498 mFaceView.setDisplayOrientation(mDisplayOrientation); 499 CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; 500 mFaceView.setMirror(info.facing == CameraInfo.CAMERA_FACING_FRONT); 501 mFaceView.resume(); 502 mCameraDevice.setFaceDetectionListener(this); 503 mCameraDevice.startFaceDetection(); 504 } 505 } 506 507 @Override 508 public void stopFaceDetection() { 509 if (mParameters.getMaxNumDetectedFaces() > 0) { 510 mCameraDevice.setFaceDetectionListener(null); 511 mCameraDevice.stopFaceDetection(); 512 if (mFaceView != null) mFaceView.clear(); 513 } 514 } 515 516 private class PopupGestureListener 517 extends GestureDetector.SimpleOnGestureListener { 518 @Override 519 public boolean onDown(MotionEvent e) { 520 // Check if the popup window is visible. 521 View popup = mIndicatorControlContainer.getActiveSettingPopup(); 522 if (popup == null) return false; 523 524 525 // Let popup window, indicator control or preview frame handle the 526 // event by themselves. Dismiss the popup window if users touch on 527 // other areas. 528 if (!Util.pointInView(e.getX(), e.getY(), popup) 529 && !Util.pointInView(e.getX(), e.getY(), mIndicatorControlContainer) 530 && !Util.pointInView(e.getX(), e.getY(), mPreviewFrame)) { 531 mIndicatorControlContainer.dismissSettingPopup(); 532 // Let event fall through. 533 } 534 return false; 535 } 536 } 537 538 @Override 539 public boolean dispatchTouchEvent(MotionEvent m) { 540 // Check if the popup window should be dismissed first. 541 if (mPopupGestureDetector != null && mPopupGestureDetector.onTouchEvent(m)) { 542 return true; 543 } 544 545 return super.dispatchTouchEvent(m); 546 } 547 548 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 549 @Override 550 public void onReceive(Context context, Intent intent) { 551 String action = intent.getAction(); 552 Log.d(TAG, "Received intent action=" + action); 553 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 554 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 555 || action.equals(Intent.ACTION_MEDIA_CHECKING)) { 556 checkStorage(); 557 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 558 checkStorage(); 559 if (!mIsImageCaptureIntent) { 560 updateThumbnailButton(); 561 } 562 } 563 } 564 }; 565 566 private void initOnScreenIndicator() { 567 mGpsNoSignalIndicator = findViewById(R.id.onscreen_gps_indicator_no_signal); 568 mGpsHasSignalIndicator = findViewById(R.id.onscreen_gps_indicator_on); 569 mExposureIndicator = (TextView) findViewById(R.id.onscreen_exposure_indicator); 570 } 571 572 @Override 573 public void showGpsOnScreenIndicator(boolean hasSignal) { 574 if (hasSignal) { 575 if (mGpsNoSignalIndicator != null) { 576 mGpsNoSignalIndicator.setVisibility(View.GONE); 577 } 578 if (mGpsHasSignalIndicator != null) { 579 mGpsHasSignalIndicator.setVisibility(View.VISIBLE); 580 } 581 } else { 582 if (mGpsNoSignalIndicator != null) { 583 mGpsNoSignalIndicator.setVisibility(View.VISIBLE); 584 } 585 if (mGpsHasSignalIndicator != null) { 586 mGpsHasSignalIndicator.setVisibility(View.GONE); 587 } 588 } 589 } 590 591 @Override 592 public void hideGpsOnScreenIndicator() { 593 if (mGpsNoSignalIndicator != null) mGpsNoSignalIndicator.setVisibility(View.GONE); 594 if (mGpsHasSignalIndicator != null) mGpsHasSignalIndicator.setVisibility(View.GONE); 595 } 596 597 private void updateExposureOnScreenIndicator(int value) { 598 if (mExposureIndicator == null) return; 599 600 if (value == 0) { 601 mExposureIndicator.setText(""); 602 mExposureIndicator.setVisibility(View.GONE); 603 } else { 604 float step = mParameters.getExposureCompensationStep(); 605 mFormatterArgs[0] = value * step; 606 mBuilder.delete(0, mBuilder.length()); 607 mFormatter.format("%+1.1f", mFormatterArgs); 608 String exposure = mFormatter.toString(); 609 mExposureIndicator.setText(exposure); 610 mExposureIndicator.setVisibility(View.VISIBLE); 611 } 612 } 613 614 private final class ShutterCallback 615 implements android.hardware.Camera.ShutterCallback { 616 public void onShutter() { 617 mShutterCallbackTime = System.currentTimeMillis(); 618 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 619 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 620 mFocusManager.onShutter(); 621 } 622 } 623 624 private final class PostViewPictureCallback implements PictureCallback { 625 public void onPictureTaken( 626 byte [] data, android.hardware.Camera camera) { 627 mPostViewPictureCallbackTime = System.currentTimeMillis(); 628 Log.v(TAG, "mShutterToPostViewCallbackTime = " 629 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 630 + "ms"); 631 } 632 } 633 634 private final class RawPictureCallback implements PictureCallback { 635 public void onPictureTaken( 636 byte [] rawData, android.hardware.Camera camera) { 637 mRawPictureCallbackTime = System.currentTimeMillis(); 638 Log.v(TAG, "mShutterToRawCallbackTime = " 639 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 640 } 641 } 642 643 private final class JpegPictureCallback implements PictureCallback { 644 Location mLocation; 645 646 public JpegPictureCallback(Location loc) { 647 mLocation = loc; 648 } 649 650 public void onPictureTaken( 651 final byte [] jpegData, final android.hardware.Camera camera) { 652 if (mPausing) { 653 return; 654 } 655 656 mJpegPictureCallbackTime = System.currentTimeMillis(); 657 // If postview callback has arrived, the captured image is displayed 658 // in postview callback. If not, the captured image is displayed in 659 // raw picture callback. 660 if (mPostViewPictureCallbackTime != 0) { 661 mShutterToPictureDisplayedTime = 662 mPostViewPictureCallbackTime - mShutterCallbackTime; 663 mPictureDisplayedToJpegCallbackTime = 664 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 665 } else { 666 mShutterToPictureDisplayedTime = 667 mRawPictureCallbackTime - mShutterCallbackTime; 668 mPictureDisplayedToJpegCallbackTime = 669 mJpegPictureCallbackTime - mRawPictureCallbackTime; 670 } 671 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 672 + mPictureDisplayedToJpegCallbackTime + "ms"); 673 674 if (!mIsImageCaptureIntent) { 675 enableCameraControls(true); 676 677 startPreview(); 678 } 679 680 if (!mIsImageCaptureIntent) { 681 storeImage(jpegData, mLocation); 682 } else { 683 mJpegImageData = jpegData; 684 if (!mQuickCapture) { 685 showPostCaptureAlert(); 686 } else { 687 doAttach(); 688 } 689 } 690 691 // Check this in advance of each shot so we don't add to shutter 692 // latency. It's true that someone else could write to the SD card in 693 // the mean time and fill it, but that could have happened between the 694 // shutter press and saving the JPEG too. 695 checkStorage(); 696 697 long now = System.currentTimeMillis(); 698 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 699 Log.v(TAG, "mJpegCallbackFinishTime = " 700 + mJpegCallbackFinishTime + "ms"); 701 mJpegPictureCallbackTime = 0; 702 } 703 } 704 705 private final class AutoFocusCallback 706 implements android.hardware.Camera.AutoFocusCallback { 707 public void onAutoFocus( 708 boolean focused, android.hardware.Camera camera) { 709 if (mPausing) return; 710 711 mAutoFocusTime = System.currentTimeMillis() - mFocusStartTime; 712 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 713 mFocusManager.onAutoFocus(focused); 714 // If focus completes and the snapshot is not started, enable the 715 // controls. 716 if (mFocusManager.isFocusCompleted()) { 717 enableCameraControls(true); 718 } 719 } 720 } 721 722 private final class ZoomListener 723 implements android.hardware.Camera.OnZoomChangeListener { 724 @Override 725 public void onZoomChange( 726 int value, boolean stopped, android.hardware.Camera camera) { 727 Log.v(TAG, "Zoom changed: value=" + value + ". stopped=" + stopped); 728 mZoomValue = value; 729 730 // Update the UI when we get zoom value. 731 mZoomControl.setZoomIndex(value); 732 733 // Keep mParameters up to date. We do not getParameter again in 734 // takePicture. If we do not do this, wrong zoom value will be set. 735 mParameters.setZoom(value); 736 737 if (stopped && mZoomState != ZOOM_STOPPED) { 738 if (mTargetZoomValue != -1 && value != mTargetZoomValue) { 739 mCameraDevice.startSmoothZoom(mTargetZoomValue); 740 mZoomState = ZOOM_START; 741 } else { 742 mZoomState = ZOOM_STOPPED; 743 } 744 } 745 } 746 } 747 748 private void storeImage(final byte[] data, Location loc) { 749 long dateTaken = System.currentTimeMillis(); 750 String title = Util.createJpegName(dateTaken); 751 int orientation = Exif.getOrientation(data); 752 Uri uri = Storage.addImage(mContentResolver, title, dateTaken, 753 loc, orientation, data); 754 if (uri != null) { 755 // Create a thumbnail whose width is equal or bigger than that of the preview. 756 int ratio = (int) Math.ceil((double) mParameters.getPictureSize().width 757 / mPreviewFrameLayout.getWidth()); 758 int inSampleSize = Integer.highestOneBit(ratio); 759 mThumbnail = Thumbnail.createThumbnail(data, orientation, inSampleSize, uri); 760 if (mThumbnail != null) { 761 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 762 } 763 // Share popup may still have the reference to the old thumbnail. Clear it. 764 mSharePopup = null; 765 Util.broadcastNewPicture(this, uri); 766 } 767 } 768 769 @Override 770 public boolean capture() { 771 // If we are already in the middle of taking a snapshot then ignore. 772 if (mCameraState == SNAPSHOT_IN_PROGRESS || mCameraDevice == null) { 773 return false; 774 } 775 mCaptureStartTime = System.currentTimeMillis(); 776 mPostViewPictureCallbackTime = 0; 777 enableCameraControls(false); 778 mJpegImageData = null; 779 780 // Set rotation and gps data. 781 Util.setRotationParameter(mParameters, mCameraId, mOrientation); 782 Location loc = mLocationManager.getCurrentLocation(); 783 Util.setGpsParameters(mParameters, loc); 784 mCameraDevice.setParameters(mParameters); 785 786 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 787 mPostViewPictureCallback, new JpegPictureCallback(loc)); 788 mCameraState = SNAPSHOT_IN_PROGRESS; 789 return true; 790 } 791 792 @Override 793 public void setFocusParameters() { 794 setCameraParameters(UPDATE_PARAM_PREFERENCE); 795 } 796 797 private boolean saveDataToFile(String filePath, byte[] data) { 798 FileOutputStream f = null; 799 try { 800 f = new FileOutputStream(filePath); 801 f.write(data); 802 } catch (IOException e) { 803 return false; 804 } finally { 805 Util.closeSilently(f); 806 } 807 return true; 808 } 809 810 @Override 811 public void onCreate(Bundle icicle) { 812 super.onCreate(icicle); 813 814 mIsImageCaptureIntent = isImageCaptureIntent(); 815 setContentView(R.layout.camera); 816 if (mIsImageCaptureIntent) { 817 findViewById(R.id.btn_cancel).setVisibility(View.VISIBLE); 818 } else { 819 mThumbnailView = (RotateImageView) findViewById(R.id.thumbnail); 820 mThumbnailView.setVisibility(View.VISIBLE); 821 } 822 823 mPreferences = new ComboPreferences(this); 824 CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal()); 825 mFocusManager = new FocusManager(mPreferences, 826 getString(R.string.pref_camera_focusmode_default)); 827 828 mCameraId = CameraSettings.readPreferredCameraId(mPreferences); 829 830 // Testing purpose. Launch a specific camera through the intent extras. 831 int intentCameraId = Util.getCameraFacingIntentExtras(this); 832 if (intentCameraId != -1) { 833 mCameraId = intentCameraId; 834 } 835 836 mPreferences.setLocalId(this, mCameraId); 837 CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); 838 839 mNumberOfCameras = CameraHolder.instance().getNumberOfCameras(); 840 mQuickCapture = getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false); 841 842 // we need to reset exposure for the preview 843 resetExposureCompensation(); 844 845 /* 846 * To reduce startup time, we start the preview in another thread. 847 * We make sure the preview is started at the end of onCreate. 848 */ 849 Thread startPreviewThread = new Thread(new Runnable() { 850 public void run() { 851 try { 852 mCameraDevice = Util.openCamera(Camera.this, mCameraId); 853 initializeCapabilities(); 854 startPreview(); 855 } catch (CameraHardwareException e) { 856 mOpenCameraFail = true; 857 } catch (CameraDisabledException e) { 858 mCameraDisabled = true; 859 } 860 } 861 }); 862 startPreviewThread.start(); 863 864 Util.enterLightsOutMode(getWindow()); 865 866 // don't set mSurfaceHolder here. We have it set ONLY within 867 // surfaceChanged / surfaceDestroyed, other parts of the code 868 // assume that when it is set, the surface is also set. 869 SurfaceView preview = (SurfaceView) findViewById(R.id.camera_preview); 870 SurfaceHolder holder = preview.getHolder(); 871 holder.addCallback(this); 872 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 873 874 if (mIsImageCaptureIntent) { 875 setupCaptureParams(); 876 } else { 877 mModePicker = (ModePicker) findViewById(R.id.mode_picker); 878 mModePicker.setVisibility(View.VISIBLE); 879 mModePicker.setOnModeChangeListener(this); 880 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 881 } 882 883 mZoomControl = (ZoomControl) findViewById(R.id.zoom_control); 884 mLocationManager = new LocationManager(this, this); 885 886 // Make sure preview is started. 887 try { 888 startPreviewThread.join(); 889 if (mOpenCameraFail) { 890 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 891 return; 892 } else if (mCameraDisabled) { 893 Util.showErrorAndFinish(this, R.string.camera_disabled); 894 return; 895 } 896 } catch (InterruptedException ex) { 897 // ignore 898 } 899 900 mBackCameraId = CameraHolder.instance().getBackCameraId(); 901 mFrontCameraId = CameraHolder.instance().getFrontCameraId(); 902 903 // Do this after starting preview because it depends on camera 904 // parameters. 905 initializeIndicatorControl(); 906 } 907 908 private void overrideCameraSettings(final String flashMode, 909 final String whiteBalance, final String focusMode) { 910 if (mIndicatorControlContainer != null) { 911 mIndicatorControlContainer.overrideSettings( 912 CameraSettings.KEY_FLASH_MODE, flashMode, 913 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 914 CameraSettings.KEY_FOCUS_MODE, focusMode); 915 } 916 } 917 918 private void updateSceneModeUI() { 919 // If scene mode is set, we cannot set flash mode, white balance, and 920 // focus mode, instead, we read it from driver 921 if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 922 overrideCameraSettings(mParameters.getFlashMode(), 923 mParameters.getWhiteBalance(), mParameters.getFocusMode()); 924 } else { 925 overrideCameraSettings(null, null, null); 926 } 927 } 928 929 private void loadCameraPreferences() { 930 CameraSettings settings = new CameraSettings(this, mInitialParams, 931 mCameraId, CameraHolder.instance().getCameraInfo()); 932 mPreferenceGroup = settings.getPreferenceGroup(R.xml.camera_preferences); 933 } 934 935 private void initializeIndicatorControl() { 936 // setting the indicator buttons. 937 mIndicatorControlContainer = 938 (IndicatorControlContainer) findViewById(R.id.indicator_control); 939 if (mIndicatorControlContainer == null) return; 940 loadCameraPreferences(); 941 final String[] SETTING_KEYS = { 942 CameraSettings.KEY_FLASH_MODE, 943 CameraSettings.KEY_WHITE_BALANCE, 944 CameraSettings.KEY_SCENE_MODE}; 945 final String[] OTHER_SETTING_KEYS = { 946 CameraSettings.KEY_RECORD_LOCATION, 947 CameraSettings.KEY_FOCUS_MODE, 948 CameraSettings.KEY_EXPOSURE, 949 CameraSettings.KEY_PICTURE_SIZE}; 950 951 CameraPicker.setImageResourceId(R.drawable.ic_switch_photo_facing_holo_light); 952 mIndicatorControlContainer.initialize(this, mPreferenceGroup, 953 mParameters.isZoomSupported(), 954 SETTING_KEYS, OTHER_SETTING_KEYS); 955 updateSceneModeUI(); 956 mIndicatorControlContainer.setListener(this); 957 } 958 959 private boolean collapseCameraControls() { 960 if ((mIndicatorControlContainer != null) 961 && mIndicatorControlContainer.dismissSettingPopup()) { 962 return true; 963 } 964 return false; 965 } 966 967 private void enableCameraControls(boolean enable) { 968 if (mIndicatorControlContainer != null) { 969 mIndicatorControlContainer.setEnabled(enable); 970 } 971 if (mModePicker != null) mModePicker.setEnabled(enable); 972 if (mZoomControl != null) mZoomControl.setEnabled(enable); 973 } 974 975 public static int roundOrientation(int orientation) { 976 return ((orientation + 45) / 90 * 90) % 360; 977 } 978 979 private class MyOrientationEventListener 980 extends OrientationEventListener { 981 public MyOrientationEventListener(Context context) { 982 super(context); 983 } 984 985 @Override 986 public void onOrientationChanged(int orientation) { 987 // We keep the last known orientation. So if the user first orient 988 // the camera then point the camera to floor or sky, we still have 989 // the correct orientation. 990 if (orientation == ORIENTATION_UNKNOWN) return; 991 mOrientation = roundOrientation(orientation); 992 // When the screen is unlocked, display rotation may change. Always 993 // calculate the up-to-date orientationCompensation. 994 int orientationCompensation = mOrientation 995 + Util.getDisplayRotation(Camera.this); 996 if (mOrientationCompensation != orientationCompensation) { 997 mOrientationCompensation = orientationCompensation; 998 setOrientationIndicator(mOrientationCompensation); 999 } 1000 1001 // Show the toast after getting the first orientation changed. 1002 if (mHandler.hasMessages(SHOW_TAP_TO_FOCUS_TOAST)) { 1003 mHandler.removeMessages(SHOW_TAP_TO_FOCUS_TOAST); 1004 showTapToFocusToast(); 1005 } 1006 } 1007 } 1008 1009 private void setOrientationIndicator(int degree) { 1010 if (mThumbnailView != null) mThumbnailView.setDegree(degree); 1011 if (mModePicker != null) mModePicker.setDegree(degree); 1012 if (mSharePopup != null) mSharePopup.setOrientation(degree); 1013 if (mIndicatorControlContainer != null) mIndicatorControlContainer.setDegree(degree); 1014 if (mZoomControl != null) mZoomControl.setDegree(degree); 1015 if (mFocusIndicator != null) mFocusIndicator.setOrientation(degree); 1016 if (mFaceView != null) mFaceView.setOrientation(degree); 1017 } 1018 1019 @Override 1020 public void onStop() { 1021 super.onStop(); 1022 if (mMediaProviderClient != null) { 1023 mMediaProviderClient.release(); 1024 mMediaProviderClient = null; 1025 } 1026 } 1027 1028 private void checkStorage() { 1029 mPicturesRemaining = Storage.getAvailableSpace(); 1030 if (mPicturesRemaining > 0) { 1031 mPicturesRemaining /= 1500000; 1032 } 1033 updateStorageHint(); 1034 } 1035 1036 @OnClickAttr 1037 public void onThumbnailClicked(View v) { 1038 if (isCameraIdle() && mThumbnail != null) { 1039 showSharePopup(); 1040 } 1041 } 1042 1043 @OnClickAttr 1044 public void onRetakeButtonClicked(View v) { 1045 hidePostCaptureAlert(); 1046 startPreview(); 1047 } 1048 1049 @OnClickAttr 1050 public void onDoneButtonClicked(View v) { 1051 doAttach(); 1052 } 1053 1054 @OnClickAttr 1055 public void onCancelButtonClicked(View v) { 1056 doCancel(); 1057 } 1058 1059 private void doAttach() { 1060 if (mPausing) { 1061 return; 1062 } 1063 1064 byte[] data = mJpegImageData; 1065 1066 if (mCropValue == null) { 1067 // First handle the no crop case -- just return the value. If the 1068 // caller specifies a "save uri" then write the data to it's 1069 // stream. Otherwise, pass back a scaled down version of the bitmap 1070 // directly in the extras. 1071 if (mSaveUri != null) { 1072 OutputStream outputStream = null; 1073 try { 1074 outputStream = mContentResolver.openOutputStream(mSaveUri); 1075 outputStream.write(data); 1076 outputStream.close(); 1077 1078 setResultEx(RESULT_OK); 1079 finish(); 1080 } catch (IOException ex) { 1081 // ignore exception 1082 } finally { 1083 Util.closeSilently(outputStream); 1084 } 1085 } else { 1086 int orientation = Exif.getOrientation(data); 1087 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1088 bitmap = Util.rotate(bitmap, orientation); 1089 setResultEx(RESULT_OK, 1090 new Intent("inline-data").putExtra("data", bitmap)); 1091 finish(); 1092 } 1093 } else { 1094 // Save the image to a temp file and invoke the cropper 1095 Uri tempUri = null; 1096 FileOutputStream tempStream = null; 1097 try { 1098 File path = getFileStreamPath(sTempCropFilename); 1099 path.delete(); 1100 tempStream = openFileOutput(sTempCropFilename, 0); 1101 tempStream.write(data); 1102 tempStream.close(); 1103 tempUri = Uri.fromFile(path); 1104 } catch (FileNotFoundException ex) { 1105 setResultEx(Activity.RESULT_CANCELED); 1106 finish(); 1107 return; 1108 } catch (IOException ex) { 1109 setResultEx(Activity.RESULT_CANCELED); 1110 finish(); 1111 return; 1112 } finally { 1113 Util.closeSilently(tempStream); 1114 } 1115 1116 Bundle newExtras = new Bundle(); 1117 if (mCropValue.equals("circle")) { 1118 newExtras.putString("circleCrop", "true"); 1119 } 1120 if (mSaveUri != null) { 1121 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1122 } else { 1123 newExtras.putBoolean("return-data", true); 1124 } 1125 1126 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1127 1128 cropIntent.setData(tempUri); 1129 cropIntent.putExtras(newExtras); 1130 1131 startActivityForResult(cropIntent, CROP_MSG); 1132 } 1133 } 1134 1135 private void doCancel() { 1136 setResultEx(RESULT_CANCELED, new Intent()); 1137 finish(); 1138 } 1139 1140 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1141 switch (button.getId()) { 1142 case R.id.shutter_button: 1143 doFocus(pressed); 1144 break; 1145 } 1146 } 1147 1148 public void onShutterButtonClick(ShutterButton button) { 1149 switch (button.getId()) { 1150 case R.id.shutter_button: 1151 doSnap(); 1152 break; 1153 } 1154 } 1155 1156 private OnScreenHint mStorageHint; 1157 1158 private void updateStorageHint() { 1159 String noStorageText = null; 1160 1161 if (mPicturesRemaining == Storage.UNAVAILABLE) { 1162 noStorageText = getString(R.string.no_storage); 1163 } else if (mPicturesRemaining == Storage.PREPARING) { 1164 noStorageText = getString(R.string.preparing_sd); 1165 } else if (mPicturesRemaining == Storage.UNKNOWN_SIZE) { 1166 noStorageText = getString(R.string.access_sd_fail); 1167 } else if (mPicturesRemaining < 1L) { 1168 noStorageText = getString(R.string.not_enough_space); 1169 } 1170 1171 if (noStorageText != null) { 1172 if (mStorageHint == null) { 1173 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1174 } else { 1175 mStorageHint.setText(noStorageText); 1176 } 1177 mStorageHint.show(); 1178 } else if (mStorageHint != null) { 1179 mStorageHint.cancel(); 1180 mStorageHint = null; 1181 } 1182 } 1183 1184 private void installIntentFilter() { 1185 // install an intent filter to receive SD card related events. 1186 IntentFilter intentFilter = 1187 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1188 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1189 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1190 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1191 intentFilter.addDataScheme("file"); 1192 registerReceiver(mReceiver, intentFilter); 1193 mDidRegister = true; 1194 } 1195 1196 @Override 1197 protected void onResume() { 1198 super.onResume(); 1199 mPausing = false; 1200 if (mOpenCameraFail || mCameraDisabled) return; 1201 1202 mJpegPictureCallbackTime = 0; 1203 mZoomValue = 0; 1204 1205 // Start the preview if it is not started. 1206 if (mCameraState == PREVIEW_STOPPED) { 1207 try { 1208 mCameraDevice = Util.openCamera(this, mCameraId); 1209 initializeCapabilities(); 1210 resetExposureCompensation(); 1211 startPreview(); 1212 } catch (CameraHardwareException e) { 1213 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1214 return; 1215 } catch (CameraDisabledException e) { 1216 Util.showErrorAndFinish(this, R.string.camera_disabled); 1217 return; 1218 } 1219 } 1220 1221 if (mSurfaceHolder != null) { 1222 // If first time initialization is not finished, put it in the 1223 // message queue. 1224 if (!mFirstTimeInitialized) { 1225 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1226 } else { 1227 initializeSecondTime(); 1228 } 1229 } 1230 keepScreenOnAwhile(); 1231 1232 if (mCameraState == IDLE) { 1233 mOnResumeTime = SystemClock.uptimeMillis(); 1234 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 1235 } 1236 } 1237 1238 @Override 1239 protected void onPause() { 1240 mPausing = true; 1241 stopPreview(); 1242 // Close the camera now because other activities may need to use it. 1243 closeCamera(); 1244 resetScreenOn(); 1245 1246 // Clear UI. 1247 collapseCameraControls(); 1248 if (mSharePopup != null) mSharePopup.dismiss(); 1249 if (mFaceView != null) mFaceView.clear(); 1250 1251 if (mFirstTimeInitialized) { 1252 mOrientationListener.disable(); 1253 if (!mIsImageCaptureIntent && mThumbnail != null && !mThumbnail.fromFile()) { 1254 mThumbnail.saveTo(new File(getFilesDir(), Thumbnail.LAST_THUMB_FILENAME)); 1255 } 1256 } 1257 1258 if (mDidRegister) { 1259 unregisterReceiver(mReceiver); 1260 mDidRegister = false; 1261 } 1262 mLocationManager.recordLocation(false); 1263 updateExposureOnScreenIndicator(0); 1264 1265 mFocusManager.releaseToneGenerator(); 1266 1267 if (mStorageHint != null) { 1268 mStorageHint.cancel(); 1269 mStorageHint = null; 1270 } 1271 1272 // If we are in an image capture intent and has taken 1273 // a picture, we just clear it in onPause. 1274 mJpegImageData = null; 1275 1276 // Remove the messages in the event queue. 1277 mHandler.removeMessages(FIRST_TIME_INIT); 1278 mHandler.removeMessages(CHECK_DISPLAY_ROTATION); 1279 mFocusManager.removeMessages(); 1280 1281 super.onPause(); 1282 } 1283 1284 @Override 1285 protected void onActivityResult( 1286 int requestCode, int resultCode, Intent data) { 1287 switch (requestCode) { 1288 case CROP_MSG: { 1289 Intent intent = new Intent(); 1290 if (data != null) { 1291 Bundle extras = data.getExtras(); 1292 if (extras != null) { 1293 intent.putExtras(extras); 1294 } 1295 } 1296 setResultEx(resultCode, intent); 1297 finish(); 1298 1299 File path = getFileStreamPath(sTempCropFilename); 1300 path.delete(); 1301 1302 break; 1303 } 1304 } 1305 } 1306 1307 private boolean canTakePicture() { 1308 return isCameraIdle() && (mPicturesRemaining > 0); 1309 } 1310 1311 @Override 1312 public void autoFocus() { 1313 mFocusStartTime = System.currentTimeMillis(); 1314 mCameraDevice.autoFocus(mAutoFocusCallback); 1315 mCameraState = FOCUSING; 1316 enableCameraControls(false); 1317 } 1318 1319 @Override 1320 public void cancelAutoFocus() { 1321 mCameraDevice.cancelAutoFocus(); 1322 mCameraState = IDLE; 1323 enableCameraControls(true); 1324 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1325 } 1326 1327 // Preview area is touched. Handle touch focus. 1328 @Override 1329 public boolean onTouch(View v, MotionEvent e) { 1330 if (mPausing || mCameraDevice == null || !mFirstTimeInitialized 1331 || mCameraState == SNAPSHOT_IN_PROGRESS) { 1332 return false; 1333 } 1334 1335 // Do not trigger touch focus if popup window is opened. 1336 if (collapseCameraControls()) return false; 1337 1338 // Check if metering area or focus area is supported. 1339 if (!mFocusAreaSupported && !mMeteringAreaSupported) return false; 1340 1341 return mFocusManager.onTouch(e); 1342 } 1343 1344 @Override 1345 public void onBackPressed() { 1346 if (!isCameraIdle()) { 1347 // ignore backs while we're taking a picture 1348 return; 1349 } else if (!collapseCameraControls()) { 1350 super.onBackPressed(); 1351 } 1352 } 1353 1354 @Override 1355 public boolean onKeyDown(int keyCode, KeyEvent event) { 1356 switch (keyCode) { 1357 case KeyEvent.KEYCODE_FOCUS: 1358 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1359 doFocus(true); 1360 } 1361 return true; 1362 case KeyEvent.KEYCODE_CAMERA: 1363 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1364 doSnap(); 1365 } 1366 return true; 1367 case KeyEvent.KEYCODE_DPAD_CENTER: 1368 // If we get a dpad center event without any focused view, move 1369 // the focus to the shutter button and press it. 1370 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1371 // Start auto-focus immediately to reduce shutter lag. After 1372 // the shutter button gets the focus, doFocus() will be 1373 // called again but it is fine. 1374 if (collapseCameraControls()) return true; 1375 doFocus(true); 1376 if (mShutterButton.isInTouchMode()) { 1377 mShutterButton.requestFocusFromTouch(); 1378 } else { 1379 mShutterButton.requestFocus(); 1380 } 1381 mShutterButton.setPressed(true); 1382 } 1383 return true; 1384 } 1385 1386 return super.onKeyDown(keyCode, event); 1387 } 1388 1389 @Override 1390 public boolean onKeyUp(int keyCode, KeyEvent event) { 1391 switch (keyCode) { 1392 case KeyEvent.KEYCODE_FOCUS: 1393 if (mFirstTimeInitialized) { 1394 doFocus(false); 1395 } 1396 return true; 1397 } 1398 return super.onKeyUp(keyCode, event); 1399 } 1400 1401 private void doSnap() { 1402 if (mPausing || collapseCameraControls()) return; 1403 1404 // Do not take the picture if there is not enough storage. 1405 if (mPicturesRemaining <= 0) { 1406 Log.i(TAG, "Not enough space or storage not ready. remaining=" + mPicturesRemaining); 1407 return; 1408 } 1409 1410 Log.v(TAG, "doSnap: mCameraState=" + mCameraState); 1411 mFocusManager.doSnap(); 1412 } 1413 1414 private void doFocus(boolean pressed) { 1415 if (mPausing || collapseCameraControls() || mCameraState == SNAPSHOT_IN_PROGRESS) return; 1416 1417 // Do not do focus if there is not enough storage. 1418 if (pressed && !canTakePicture()) return; 1419 1420 // Lock AE and AWB so users can half-press shutter and recompose. 1421 mAeAwbLock = pressed; 1422 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1423 mFocusManager.doFocus(pressed); 1424 } 1425 1426 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1427 // Make sure we have a surface in the holder before proceeding. 1428 if (holder.getSurface() == null) { 1429 Log.d(TAG, "holder.getSurface() == null"); 1430 return; 1431 } 1432 1433 Log.v(TAG, "surfaceChanged. w=" + w + ". h=" + h); 1434 1435 // We need to save the holder for later use, even when the mCameraDevice 1436 // is null. This could happen if onResume() is invoked after this 1437 // function. 1438 mSurfaceHolder = holder; 1439 1440 // The mCameraDevice will be null if it fails to connect to the camera 1441 // hardware. In this case we will show a dialog and then finish the 1442 // activity, so it's OK to ignore it. 1443 if (mCameraDevice == null) return; 1444 1445 // Sometimes surfaceChanged is called after onPause or before onResume. 1446 // Ignore it. 1447 if (mPausing || isFinishing()) return; 1448 1449 // Set preview display if the surface is being created. Preview was 1450 // already started. Also restart the preview if display rotation has 1451 // changed. Sometimes this happens when the device is held in portrait 1452 // and camera app is opened. Rotation animation takes some time and 1453 // display rotation in onCreate may not be what we want. 1454 if (mCameraState != PREVIEW_STOPPED 1455 && (Util.getDisplayRotation(this) == mDisplayRotation) 1456 && holder.isCreating()) { 1457 // Set preview display if the surface is being created and preview 1458 // was already started. That means preview display was set to null 1459 // and we need to set it now. 1460 setPreviewDisplay(holder); 1461 } else { 1462 // 1. Restart the preview if the size of surface was changed. The 1463 // framework may not support changing preview display on the fly. 1464 // 2. Start the preview now if surface was destroyed and preview 1465 // stopped. 1466 startPreview(); 1467 } 1468 1469 // If first time initialization is not finished, send a message to do 1470 // it later. We want to finish surfaceChanged as soon as possible to let 1471 // user see preview first. 1472 if (!mFirstTimeInitialized) { 1473 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1474 } else { 1475 initializeSecondTime(); 1476 } 1477 } 1478 1479 public void surfaceCreated(SurfaceHolder holder) { 1480 } 1481 1482 public void surfaceDestroyed(SurfaceHolder holder) { 1483 stopPreview(); 1484 mSurfaceHolder = null; 1485 } 1486 1487 private void closeCamera() { 1488 if (mCameraDevice != null) { 1489 mCameraDevice.cancelAutoFocus(); // Reset the focus. 1490 CameraHolder.instance().release(); 1491 mCameraDevice.setZoomChangeListener(null); 1492 mCameraDevice.setFaceDetectionListener(null); 1493 mCameraDevice.setErrorCallback(null); 1494 mCameraDevice = null; 1495 mCameraState = PREVIEW_STOPPED; 1496 mFocusManager.onCameraReleased(); 1497 } 1498 } 1499 1500 private void setPreviewDisplay(SurfaceHolder holder) { 1501 try { 1502 mCameraDevice.setPreviewDisplay(holder); 1503 } catch (Throwable ex) { 1504 closeCamera(); 1505 throw new RuntimeException("setPreviewDisplay failed", ex); 1506 } 1507 } 1508 1509 private void startPreview() { 1510 if (mPausing || isFinishing()) return; 1511 1512 mFocusManager.resetTouchFocus(); 1513 1514 mCameraDevice.setErrorCallback(mErrorCallback); 1515 1516 // If we're previewing already, stop the preview first (this will blank 1517 // the screen). 1518 if (mCameraState != PREVIEW_STOPPED) stopPreview(); 1519 1520 setPreviewDisplay(mSurfaceHolder); 1521 mDisplayRotation = Util.getDisplayRotation(this); 1522 mDisplayOrientation = Util.getDisplayOrientation(mDisplayRotation, mCameraId); 1523 mCameraDevice.setDisplayOrientation(mDisplayOrientation); 1524 if (mFaceView != null) { 1525 mFaceView.setDisplayOrientation(mDisplayOrientation); 1526 } 1527 mAeAwbLock = false; // Always unlock AE and AWB before start. 1528 setCameraParameters(UPDATE_PARAM_ALL); 1529 // If the focus mode is continuous autofocus, call cancelAutoFocus to 1530 // resume it because it may have been paused by autoFocus call. 1531 if (Parameters.FOCUS_MODE_CONTINUOUS_PICTURE.equals(mParameters.getFocusMode())) { 1532 mCameraDevice.cancelAutoFocus(); 1533 } 1534 1535 try { 1536 Log.v(TAG, "startPreview"); 1537 mCameraDevice.startPreview(); 1538 } catch (Throwable ex) { 1539 closeCamera(); 1540 throw new RuntimeException("startPreview failed", ex); 1541 } 1542 1543 startFaceDetection(); 1544 mZoomState = ZOOM_STOPPED; 1545 mCameraState = IDLE; 1546 mFocusManager.onPreviewStarted(); 1547 } 1548 1549 private void stopPreview() { 1550 if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) { 1551 Log.v(TAG, "stopPreview"); 1552 mCameraDevice.stopPreview(); 1553 } 1554 mCameraState = PREVIEW_STOPPED; 1555 mFocusManager.onPreviewStopped(); 1556 } 1557 1558 private static boolean isSupported(String value, List<String> supported) { 1559 return supported == null ? false : supported.indexOf(value) >= 0; 1560 } 1561 1562 private void updateCameraParametersInitialize() { 1563 // Reset preview frame rate to the maximum because it may be lowered by 1564 // video camera application. 1565 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1566 if (frameRates != null) { 1567 Integer max = Collections.max(frameRates); 1568 mParameters.setPreviewFrameRate(max); 1569 } 1570 1571 mParameters.setRecordingHint(false); 1572 } 1573 1574 private void updateCameraParametersZoom() { 1575 // Set zoom. 1576 if (mParameters.isZoomSupported()) { 1577 mParameters.setZoom(mZoomValue); 1578 } 1579 } 1580 1581 private void updateCameraParametersPreference() { 1582 if (mAwbLockSupported) { 1583 mParameters.setAutoWhiteBalanceLock(mAeAwbLock); 1584 } 1585 1586 if (mAeLockSupported) { 1587 mParameters.setAutoExposureLock(mAeAwbLock); 1588 } 1589 1590 if (mFocusAreaSupported) { 1591 mParameters.setFocusAreas(mFocusManager.getTapArea()); 1592 } 1593 1594 if (mMeteringAreaSupported) { 1595 // Use the same area for focus and metering. 1596 mParameters.setMeteringAreas(mFocusManager.getTapArea()); 1597 } 1598 1599 // Set picture size. 1600 String pictureSize = mPreferences.getString( 1601 CameraSettings.KEY_PICTURE_SIZE, null); 1602 if (pictureSize == null) { 1603 CameraSettings.initialCameraPictureSize(this, mParameters); 1604 } else { 1605 List<Size> supported = mParameters.getSupportedPictureSizes(); 1606 CameraSettings.setCameraPictureSize( 1607 pictureSize, supported, mParameters); 1608 } 1609 1610 // Set the preview frame aspect ratio according to the picture size. 1611 Size size = mParameters.getPictureSize(); 1612 1613 mPreviewPanel = findViewById(R.id.frame_layout); 1614 mPreviewFrameLayout = (PreviewFrameLayout) findViewById(R.id.frame); 1615 mPreviewFrameLayout.setAspectRatio((double) size.width / size.height); 1616 1617 // Set a preview size that is closest to the viewfinder height and has 1618 // the right aspect ratio. 1619 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1620 Size optimalSize = Util.getOptimalPreviewSize(this, 1621 sizes, (double) size.width / size.height); 1622 Size original = mParameters.getPreviewSize(); 1623 if (!original.equals(optimalSize)) { 1624 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1625 1626 // Zoom related settings will be changed for different preview 1627 // sizes, so set and read the parameters to get lastest values 1628 mCameraDevice.setParameters(mParameters); 1629 mParameters = mCameraDevice.getParameters(); 1630 } 1631 Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height); 1632 1633 // Since change scene mode may change supported values, 1634 // Set scene mode first, 1635 mSceneMode = mPreferences.getString( 1636 CameraSettings.KEY_SCENE_MODE, 1637 getString(R.string.pref_camera_scenemode_default)); 1638 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 1639 if (!mParameters.getSceneMode().equals(mSceneMode)) { 1640 mParameters.setSceneMode(mSceneMode); 1641 mCameraDevice.setParameters(mParameters); 1642 1643 // Setting scene mode will change the settings of flash mode, 1644 // white balance, and focus mode. Here we read back the 1645 // parameters, so we can know those settings. 1646 mParameters = mCameraDevice.getParameters(); 1647 } 1648 } else { 1649 mSceneMode = mParameters.getSceneMode(); 1650 if (mSceneMode == null) { 1651 mSceneMode = Parameters.SCENE_MODE_AUTO; 1652 } 1653 } 1654 1655 // Set JPEG quality. 1656 int jpegQuality = CameraProfile.getJpegEncodingQualityParameter(mCameraId, 1657 CameraProfile.QUALITY_HIGH); 1658 mParameters.setJpegQuality(jpegQuality); 1659 1660 // For the following settings, we need to check if the settings are 1661 // still supported by latest driver, if not, ignore the settings. 1662 1663 // Set exposure compensation 1664 int value = CameraSettings.readExposure(mPreferences); 1665 int max = mParameters.getMaxExposureCompensation(); 1666 int min = mParameters.getMinExposureCompensation(); 1667 if (value >= min && value <= max) { 1668 mParameters.setExposureCompensation(value); 1669 } else { 1670 Log.w(TAG, "invalid exposure range: " + value); 1671 } 1672 1673 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1674 // Set flash mode. 1675 String flashMode = mPreferences.getString( 1676 CameraSettings.KEY_FLASH_MODE, 1677 getString(R.string.pref_camera_flashmode_default)); 1678 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 1679 if (isSupported(flashMode, supportedFlash)) { 1680 mParameters.setFlashMode(flashMode); 1681 } else { 1682 flashMode = mParameters.getFlashMode(); 1683 if (flashMode == null) { 1684 flashMode = getString( 1685 R.string.pref_camera_flashmode_no_flash); 1686 } 1687 } 1688 1689 // Set white balance parameter. 1690 String whiteBalance = mPreferences.getString( 1691 CameraSettings.KEY_WHITE_BALANCE, 1692 getString(R.string.pref_camera_whitebalance_default)); 1693 if (isSupported(whiteBalance, 1694 mParameters.getSupportedWhiteBalance())) { 1695 mParameters.setWhiteBalance(whiteBalance); 1696 } else { 1697 whiteBalance = mParameters.getWhiteBalance(); 1698 if (whiteBalance == null) { 1699 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 1700 } 1701 } 1702 1703 // Set focus mode. 1704 mFocusManager.overrideFocusMode(null); 1705 mParameters.setFocusMode(mFocusManager.getFocusMode()); 1706 } else { 1707 mFocusManager.overrideFocusMode(mParameters.getFocusMode()); 1708 } 1709 } 1710 1711 // We separate the parameters into several subsets, so we can update only 1712 // the subsets actually need updating. The PREFERENCE set needs extra 1713 // locking because the preference can be changed from GLThread as well. 1714 private void setCameraParameters(int updateSet) { 1715 mParameters = mCameraDevice.getParameters(); 1716 1717 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 1718 updateCameraParametersInitialize(); 1719 } 1720 1721 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 1722 updateCameraParametersZoom(); 1723 } 1724 1725 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 1726 updateCameraParametersPreference(); 1727 } 1728 1729 mCameraDevice.setParameters(mParameters); 1730 } 1731 1732 // If the Camera is idle, update the parameters immediately, otherwise 1733 // accumulate them in mUpdateSet and update later. 1734 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 1735 mUpdateSet |= additionalUpdateSet; 1736 if (mCameraDevice == null) { 1737 // We will update all the parameters when we open the device, so 1738 // we don't need to do anything now. 1739 mUpdateSet = 0; 1740 return; 1741 } else if (isCameraIdle()) { 1742 setCameraParameters(mUpdateSet); 1743 updateSceneModeUI(); 1744 mUpdateSet = 0; 1745 } else { 1746 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 1747 mHandler.sendEmptyMessageDelayed( 1748 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 1749 } 1750 } 1751 } 1752 1753 private void gotoGallery() { 1754 MenuHelper.gotoCameraImageGallery(this); 1755 } 1756 1757 private boolean isCameraIdle() { 1758 return (mCameraState == IDLE) || (mFocusManager.isFocusCompleted()); 1759 } 1760 1761 private boolean isImageCaptureIntent() { 1762 String action = getIntent().getAction(); 1763 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 1764 } 1765 1766 private void setupCaptureParams() { 1767 Bundle myExtras = getIntent().getExtras(); 1768 if (myExtras != null) { 1769 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 1770 mCropValue = myExtras.getString("crop"); 1771 } 1772 } 1773 1774 private void showPostCaptureAlert() { 1775 if (mIsImageCaptureIntent) { 1776 Util.fadeOut(mIndicatorControlContainer); 1777 Util.fadeOut(mShutterButton); 1778 1779 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1780 for (int id : pickIds) { 1781 Util.fadeIn(findViewById(id)); 1782 } 1783 } 1784 } 1785 1786 private void hidePostCaptureAlert() { 1787 if (mIsImageCaptureIntent) { 1788 enableCameraControls(true); 1789 1790 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1791 for (int id : pickIds) { 1792 Util.fadeOut(findViewById(id)); 1793 } 1794 1795 Util.fadeIn(mShutterButton); 1796 Util.fadeIn(mIndicatorControlContainer); 1797 } 1798 } 1799 1800 @Override 1801 public boolean onPrepareOptionsMenu(Menu menu) { 1802 super.onPrepareOptionsMenu(menu); 1803 // Only show the menu when camera is idle. 1804 for (int i = 0; i < menu.size(); i++) { 1805 menu.getItem(i).setVisible(isCameraIdle()); 1806 } 1807 1808 return true; 1809 } 1810 1811 @Override 1812 public boolean onCreateOptionsMenu(Menu menu) { 1813 super.onCreateOptionsMenu(menu); 1814 1815 if (mIsImageCaptureIntent) { 1816 // No options menu for attach mode. 1817 return false; 1818 } else { 1819 addBaseMenuItems(menu); 1820 } 1821 return true; 1822 } 1823 1824 private void addBaseMenuItems(Menu menu) { 1825 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_VIDEO, new Runnable() { 1826 public void run() { 1827 switchToOtherMode(ModePicker.MODE_VIDEO); 1828 } 1829 }); 1830 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_PANORAMA, new Runnable() { 1831 public void run() { 1832 switchToOtherMode(ModePicker.MODE_PANORAMA); 1833 } 1834 }); 1835 1836 if (mNumberOfCameras > 1) { 1837 menu.add(R.string.switch_camera_id) 1838 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1839 public boolean onMenuItemClick(MenuItem item) { 1840 CameraSettings.writePreferredCameraId(mPreferences, 1841 ((mCameraId == mFrontCameraId) 1842 ? mBackCameraId : mFrontCameraId)); 1843 onSharedPreferenceChanged(); 1844 return true; 1845 } 1846 }).setIcon(android.R.drawable.ic_menu_camera); 1847 } 1848 } 1849 1850 private boolean switchToOtherMode(int mode) { 1851 if (isFinishing()) return false; 1852 MenuHelper.gotoMode(mode, Camera.this); 1853 mHandler.removeMessages(FIRST_TIME_INIT); 1854 finish(); 1855 return true; 1856 } 1857 1858 public boolean onModeChanged(int mode) { 1859 if (mode != ModePicker.MODE_CAMERA) { 1860 return switchToOtherMode(mode); 1861 } else { 1862 return true; 1863 } 1864 } 1865 1866 public void onSharedPreferenceChanged() { 1867 // ignore the events after "onPause()" 1868 if (mPausing) return; 1869 1870 boolean recordLocation = RecordLocationPreference.get( 1871 mPreferences, getContentResolver()); 1872 mLocationManager.recordLocation(recordLocation); 1873 1874 int cameraId = CameraSettings.readPreferredCameraId(mPreferences); 1875 if (mCameraId != cameraId) { 1876 // Restart the activity to have a crossfade animation. 1877 // TODO: Use SurfaceTexture to implement a better and faster 1878 // animation. 1879 if (mIsImageCaptureIntent) { 1880 // If the intent is camera capture, stay in camera capture mode. 1881 MenuHelper.gotoCameraMode(this, getIntent()); 1882 } else { 1883 MenuHelper.gotoCameraMode(this); 1884 } 1885 1886 finish(); 1887 } else { 1888 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 1889 } 1890 1891 int exposureValue = CameraSettings.readExposure(mPreferences); 1892 updateExposureOnScreenIndicator(exposureValue); 1893 } 1894 1895 @Override 1896 public void onUserInteraction() { 1897 super.onUserInteraction(); 1898 keepScreenOnAwhile(); 1899 } 1900 1901 private void resetScreenOn() { 1902 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 1903 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1904 } 1905 1906 private void keepScreenOnAwhile() { 1907 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 1908 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1909 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 1910 } 1911 1912 public void onRestorePreferencesClicked() { 1913 if (mPausing) return; 1914 Runnable runnable = new Runnable() { 1915 public void run() { 1916 restorePreferences(); 1917 } 1918 }; 1919 MenuHelper.confirmAction(this, 1920 getString(R.string.confirm_restore_title), 1921 getString(R.string.confirm_restore_message), 1922 runnable); 1923 } 1924 1925 private void restorePreferences() { 1926 // Reset the zoom. Zoom value is not stored in preference. 1927 if (mParameters.isZoomSupported()) { 1928 mZoomValue = 0; 1929 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 1930 mZoomControl.setZoomIndex(0); 1931 } 1932 if (mIndicatorControlContainer != null) { 1933 mIndicatorControlContainer.dismissSettingPopup(); 1934 CameraSettings.restorePreferences(Camera.this, mPreferences, 1935 mParameters); 1936 mIndicatorControlContainer.reloadPreferences(); 1937 onSharedPreferenceChanged(); 1938 } 1939 } 1940 1941 public void onOverriddenPreferencesClicked() { 1942 if (mPausing) return; 1943 if (mNotSelectableToast == null) { 1944 String str = getResources().getString(R.string.not_selectable_in_scene_mode); 1945 mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT); 1946 } 1947 mNotSelectableToast.show(); 1948 } 1949 1950 private void showSharePopup() { 1951 Uri uri = mThumbnail.getUri(); 1952 if (mSharePopup == null || !uri.equals(mSharePopup.getUri())) { 1953 // SharePopup window takes the mPreviewPanel as its size reference. 1954 mSharePopup = new SharePopup(this, uri, mThumbnail.getBitmap(), 1955 mOrientationCompensation, mPreviewPanel); 1956 } 1957 mSharePopup.showAtLocation(mThumbnailView, Gravity.NO_GRAVITY, 0, 0); 1958 } 1959 1960 @Override 1961 public void onFaceDetection(Face[] faces, android.hardware.Camera camera) { 1962 mFaceView.setFaces(faces); 1963 } 1964 1965 private void showTapToFocusToast() { 1966 // Show the toast. 1967 RotateLayout v = (RotateLayout) findViewById(R.id.tap_to_focus_prompt); 1968 v.setOrientation(mOrientationCompensation); 1969 v.startAnimation(AnimationUtils.loadAnimation(this, R.anim.on_screen_hint_enter)); 1970 v.setVisibility(View.VISIBLE); 1971 mHandler.sendEmptyMessageDelayed(DISMISS_TAP_TO_FOCUS_TOAST, 5000); 1972 // Clear the preference. 1973 Editor editor = mPreferences.edit(); 1974 editor.putBoolean(CameraSettings.KEY_TAP_TO_FOCUS_PROMPT_SHOWN, false); 1975 editor.apply(); 1976 } 1977 1978 private void initializeCapabilities() { 1979 mInitialParams = mCameraDevice.getParameters(); 1980 mFocusManager.initializeParameters(mInitialParams); 1981 mFocusAreaSupported = (mInitialParams.getMaxNumFocusAreas() > 0 1982 && isSupported(Parameters.FOCUS_MODE_AUTO, 1983 mInitialParams.getSupportedFocusModes())); 1984 mMeteringAreaSupported = (mInitialParams.getMaxNumMeteringAreas() > 0); 1985 mAwbLockSupported = mInitialParams.isAutoWhiteBalanceLockSupported(); 1986 mAeLockSupported = mInitialParams.isAutoExposureLockSupported(); 1987 } 1988} 1989