Camera.java revision 30f0481931beed547656f2c7bc6290ecc9b01ac3
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.provider.Settings; 53import android.util.Log; 54import android.view.GestureDetector; 55import android.view.Gravity; 56import android.view.KeyEvent; 57import android.view.Menu; 58import android.view.MenuItem; 59import android.view.MenuItem.OnMenuItemClickListener; 60import android.view.MotionEvent; 61import android.view.OrientationEventListener; 62import android.view.SurfaceHolder; 63import android.view.SurfaceView; 64import android.view.View; 65import android.view.Window; 66import android.view.WindowManager; 67import android.view.animation.AnimationUtils; 68import android.widget.TextView; 69import android.widget.Toast; 70 71import java.io.File; 72import java.io.FileNotFoundException; 73import java.io.FileOutputStream; 74import java.io.IOException; 75import java.io.OutputStream; 76import java.util.ArrayList; 77import java.util.Collections; 78import java.util.Formatter; 79import java.util.List; 80 81/** The Camera activity which can preview and take pictures. */ 82public class Camera extends ActivityBase implements FocusManager.Listener, 83 View.OnTouchListener, ShutterButton.OnShutterButtonListener, 84 SurfaceHolder.Callback, ModePicker.OnModeChangeListener, 85 FaceDetectionListener, CameraPreference.OnPreferenceChangedListener, 86 LocationManager.Listener { 87 88 private static final String TAG = "camera"; 89 90 private static final int CROP_MSG = 1; 91 private static final int FIRST_TIME_INIT = 2; 92 private static final int CLEAR_SCREEN_DELAY = 3; 93 private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 4; 94 private static final int CHECK_DISPLAY_ROTATION = 5; 95 private static final int SHOW_TAP_TO_FOCUS_TOAST = 6; 96 private static final int DISMISS_TAP_TO_FOCUS_TOAST = 7; 97 98 // The subset of parameters we need to update in setCameraParameters(). 99 private static final int UPDATE_PARAM_INITIALIZE = 1; 100 private static final int UPDATE_PARAM_ZOOM = 2; 101 private static final int UPDATE_PARAM_PREFERENCE = 4; 102 private static final int UPDATE_PARAM_ALL = -1; 103 104 // When setCameraParametersWhenIdle() is called, we accumulate the subsets 105 // needed to be updated in mUpdateSet. 106 private int mUpdateSet; 107 108 // The brightness settings used when it is set to automatic in the system. 109 // The reason why it is set to 0.7 is just because 1.0 is too bright. 110 private static final float DEFAULT_CAMERA_BRIGHTNESS = 0.7f; 111 112 private static final int SCREEN_DELAY = 2 * 60 * 1000; 113 114 private static final int ZOOM_STOPPED = 0; 115 private static final int ZOOM_START = 1; 116 private static final int ZOOM_STOPPING = 2; 117 118 private int mZoomState = ZOOM_STOPPED; 119 private boolean mSmoothZoomSupported = false; 120 private int mZoomValue; // The current zoom value. 121 private int mZoomMax; 122 private int mTargetZoomValue; 123 private ZoomControl mZoomControl; 124 125 private Parameters mParameters; 126 private Parameters mInitialParams; 127 private boolean mFocusAreaSupported; 128 private boolean mMeteringAreaSupported; 129 130 private MyOrientationEventListener mOrientationListener; 131 // The degrees of the device rotated clockwise from its natural orientation. 132 private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 133 // The orientation compensation for icons and thumbnails. Ex: if the value 134 // is 90, the UI components should be rotated 90 degrees counter-clockwise. 135 private int mOrientationCompensation = 0; 136 private ComboPreferences mPreferences; 137 138 private static final String sTempCropFilename = "crop-temp"; 139 140 private android.hardware.Camera mCameraDevice; 141 private ContentProviderClient mMediaProviderClient; 142 private SurfaceHolder mSurfaceHolder = null; 143 private ShutterButton mShutterButton; 144 private GestureDetector mPopupGestureDetector; 145 private boolean mOpenCameraFail = false; 146 private boolean mCameraDisabled = false; 147 148 private PreviewFrameLayout mPreviewFrameLayout; 149 private View mPreviewFrame; // Preview frame area. 150 151 // A popup window that contains a bigger thumbnail and a list of apps to share. 152 private SharePopup mSharePopup; 153 // The bitmap of the last captured picture thumbnail and the URI of the 154 // original picture. 155 private Thumbnail mThumbnail; 156 // An imageview showing showing the last captured picture thumbnail. 157 private RotateImageView mThumbnailView; 158 private ModePicker mModePicker; 159 private FaceView mFaceView; 160 private RotateLayout mFocusIndicator; 161 162 // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. 163 private String mCropValue; 164 private Uri mSaveUri; 165 166 // On-screen indicator 167 private View mGpsNoSignalIndicator; 168 private View mGpsHasSignalIndicator; 169 private TextView mExposureIndicator; 170 171 private final StringBuilder mBuilder = new StringBuilder(); 172 private final Formatter mFormatter = new Formatter(mBuilder); 173 private final Object[] mFormatterArgs = new Object[1]; 174 175 /** 176 * An unpublished intent flag requesting to return as soon as capturing 177 * is completed. 178 * 179 * TODO: consider publishing by moving into MediaStore. 180 */ 181 private final static String EXTRA_QUICK_CAPTURE = 182 "android.intent.extra.quickCapture"; 183 184 // The display rotation in degrees. This is only valid when mCameraState is 185 // not PREVIEW_STOPPED. 186 private int mDisplayRotation; 187 // The value for android.hardware.Camera.setDisplayOrientation. 188 private int mDisplayOrientation; 189 private boolean mPausing; 190 private boolean mFirstTimeInitialized; 191 private boolean mIsImageCaptureIntent; 192 193 private static final int PREVIEW_STOPPED = 0; 194 private static final int IDLE = 1; // preview is active 195 // Focus is in progress. The exact focus state is in Focus.java. 196 private static final int FOCUSING = 2; 197 private static final int SNAPSHOT_IN_PROGRESS = 3; 198 private int mCameraState = PREVIEW_STOPPED; 199 200 private ContentResolver mContentResolver; 201 private boolean mDidRegister = false; 202 203 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 204 205 private LocationManager mLocationManager; 206 207 private final ShutterCallback mShutterCallback = new ShutterCallback(); 208 private final PostViewPictureCallback mPostViewPictureCallback = 209 new PostViewPictureCallback(); 210 private final RawPictureCallback mRawPictureCallback = 211 new RawPictureCallback(); 212 private final AutoFocusCallback mAutoFocusCallback = 213 new AutoFocusCallback(); 214 private final ZoomListener mZoomListener = new ZoomListener(); 215 private final CameraErrorCallback mErrorCallback = new CameraErrorCallback(); 216 217 private long mFocusStartTime; 218 private long mCaptureStartTime; 219 private long mShutterCallbackTime; 220 private long mPostViewPictureCallbackTime; 221 private long mRawPictureCallbackTime; 222 private long mJpegPictureCallbackTime; 223 private long mOnResumeTime; 224 private long mPicturesRemaining; 225 private byte[] mJpegImageData; 226 227 // These latency time are for the CameraLatency test. 228 public long mAutoFocusTime; 229 public long mShutterLag; 230 public long mShutterToPictureDisplayedTime; 231 public long mPictureDisplayedToJpegCallbackTime; 232 public long mJpegCallbackFinishTime; 233 234 // This handles everything about focus. 235 private FocusManager mFocusManager; 236 private String mSceneMode; 237 private Toast mNotSelectableToast; 238 private Toast mNoShareToast; 239 240 private final Handler mHandler = new MainHandler(); 241 private IndicatorControlContainer mIndicatorControlContainer; 242 private PreferenceGroup mPreferenceGroup; 243 244 // multiple cameras support 245 private int mNumberOfCameras; 246 private int mCameraId; 247 private int mFrontCameraId; 248 private int mBackCameraId; 249 250 private boolean mQuickCapture; 251 252 /** 253 * This Handler is used to post message back onto the main thread of the 254 * application 255 */ 256 private class MainHandler extends Handler { 257 @Override 258 public void handleMessage(Message msg) { 259 switch (msg.what) { 260 case CLEAR_SCREEN_DELAY: { 261 getWindow().clearFlags( 262 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 263 break; 264 } 265 266 case FIRST_TIME_INIT: { 267 initializeFirstTime(); 268 break; 269 } 270 271 case SET_CAMERA_PARAMETERS_WHEN_IDLE: { 272 setCameraParametersWhenIdle(0); 273 break; 274 } 275 276 case CHECK_DISPLAY_ROTATION: { 277 // Restart the preview if display rotation has changed. 278 // Sometimes this happens when the device is held upside 279 // down and camera app is opened. Rotation animation will 280 // take some time and the rotation value we have got may be 281 // wrong. Framework does not have a callback for this now. 282 if (Util.getDisplayRotation(Camera.this) != mDisplayRotation 283 && isCameraIdle()) { 284 startPreview(); 285 } 286 if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) { 287 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 288 } 289 break; 290 } 291 292 case SHOW_TAP_TO_FOCUS_TOAST: { 293 showTapToFocusToast(); 294 break; 295 } 296 297 case DISMISS_TAP_TO_FOCUS_TOAST: { 298 View v = findViewById(R.id.tap_to_focus_prompt); 299 v.setVisibility(View.GONE); 300 v.setAnimation(AnimationUtils.loadAnimation(Camera.this, 301 R.anim.on_screen_hint_exit)); 302 break; 303 } 304 } 305 } 306 } 307 308 private void resetExposureCompensation() { 309 String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, 310 CameraSettings.EXPOSURE_DEFAULT_VALUE); 311 if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { 312 Editor editor = mPreferences.edit(); 313 editor.putString(CameraSettings.KEY_EXPOSURE, "0"); 314 editor.apply(); 315 if (mIndicatorControlContainer != null) { 316 mIndicatorControlContainer.reloadPreferences(); 317 } 318 } 319 } 320 321 private void keepMediaProviderInstance() { 322 // We want to keep a reference to MediaProvider in camera's lifecycle. 323 // TODO: Utilize mMediaProviderClient instance to replace 324 // ContentResolver calls. 325 if (mMediaProviderClient == null) { 326 mMediaProviderClient = getContentResolver() 327 .acquireContentProviderClient(MediaStore.AUTHORITY); 328 } 329 } 330 331 // Snapshots can only be taken after this is called. It should be called 332 // once only. We could have done these things in onCreate() but we want to 333 // make preview screen appear as soon as possible. 334 private void initializeFirstTime() { 335 if (mFirstTimeInitialized) return; 336 337 // Create orientation listenter. This should be done first because it 338 // takes some time to get first orientation. 339 mOrientationListener = new MyOrientationEventListener(Camera.this); 340 mOrientationListener.enable(); 341 342 // Initialize location sevice. 343 boolean recordLocation = RecordLocationPreference.get( 344 mPreferences, getContentResolver()); 345 initOnScreenIndicator(); 346 mLocationManager.recordLocation(recordLocation); 347 348 keepMediaProviderInstance(); 349 checkStorage(); 350 351 // Initialize last picture button. 352 mContentResolver = getContentResolver(); 353 if (!mIsImageCaptureIntent) { // no thumbnail in image capture intent 354 initThumbnailButton(); 355 } 356 357 // Initialize shutter button. 358 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 359 mShutterButton.setOnShutterButtonListener(this); 360 mShutterButton.setVisibility(View.VISIBLE); 361 362 // Initialize focus UI. 363 mPreviewFrame = findViewById(R.id.camera_preview); 364 mPreviewFrame.setOnTouchListener(this); 365 mFocusIndicator = (RotateLayout) findViewById(R.id.focus_indicator_rotate_layout); 366 mFocusManager.initialize(mFocusIndicator, mPreviewFrame, mFaceView, this); 367 mFocusManager.initializeToneGenerator(); 368 initializeScreenBrightness(); 369 installIntentFilter(); 370 initializeZoom(); 371 // Show the tap to focus toast if this is the first start. 372 if (mFocusAreaSupported && 373 mPreferences.getBoolean(CameraSettings.KEY_TAP_TO_FOCUS_PROMPT_SHOWN, true)) { 374 // Delay the toast for one second to wait for orientation. 375 mHandler.sendEmptyMessageDelayed(SHOW_TAP_TO_FOCUS_TOAST, 1000); 376 } 377 378 mFirstTimeInitialized = true; 379 addIdleHandler(); 380 } 381 382 private void addIdleHandler() { 383 MessageQueue queue = Looper.myQueue(); 384 queue.addIdleHandler(new MessageQueue.IdleHandler() { 385 public boolean queueIdle() { 386 Storage.ensureOSXCompatible(); 387 return false; 388 } 389 }); 390 } 391 392 private void initThumbnailButton() { 393 // Load the thumbnail from the disk. 394 mThumbnail = Thumbnail.loadFrom(new File(getFilesDir(), Thumbnail.LAST_THUMB_FILENAME)); 395 updateThumbnailButton(); 396 } 397 398 private void updateThumbnailButton() { 399 // Update last image if URI is invalid and the storage is ready. 400 if ((mThumbnail == null || !Util.isUriValid(mThumbnail.getUri(), mContentResolver)) 401 && mPicturesRemaining >= 0) { 402 mThumbnail = Thumbnail.getLastThumbnail(mContentResolver); 403 } 404 if (mThumbnail != null) { 405 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 406 } else { 407 mThumbnailView.setBitmap(null); 408 } 409 } 410 411 // If the activity is paused and resumed, this method will be called in 412 // onResume. 413 private void initializeSecondTime() { 414 // Start orientation listener as soon as possible because it takes 415 // some time to get first orientation. 416 mOrientationListener.enable(); 417 418 // Start location update if needed. 419 boolean recordLocation = RecordLocationPreference.get( 420 mPreferences, getContentResolver()); 421 mLocationManager.recordLocation(recordLocation); 422 423 installIntentFilter(); 424 mFocusManager.initializeToneGenerator(); 425 initializeZoom(); 426 keepMediaProviderInstance(); 427 checkStorage(); 428 429 if (!mIsImageCaptureIntent) { 430 updateThumbnailButton(); 431 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 432 } 433 } 434 435 private class ZoomChangeListener implements ZoomControl.OnZoomChangedListener { 436 // only for immediate zoom 437 @Override 438 public void onZoomValueChanged(int index) { 439 Camera.this.onZoomValueChanged(index); 440 } 441 442 // only for smooth zoom 443 @Override 444 public void onZoomStateChanged(int state) { 445 if (mPausing) return; 446 447 Log.v(TAG, "zoom picker state=" + state); 448 if (state == ZoomControl.ZOOM_IN) { 449 Camera.this.onZoomValueChanged(mZoomMax); 450 } else if (state == ZoomControl.ZOOM_OUT) { 451 Camera.this.onZoomValueChanged(0); 452 } else { 453 mTargetZoomValue = -1; 454 if (mZoomState == ZOOM_START) { 455 mZoomState = ZOOM_STOPPING; 456 mCameraDevice.stopSmoothZoom(); 457 } 458 } 459 } 460 } 461 462 private void initializeZoom() { 463 if (!mParameters.isZoomSupported()) return; 464 mZoomMax = mParameters.getMaxZoom(); 465 mSmoothZoomSupported = mParameters.isSmoothZoomSupported(); 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_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 CameraSettings.KEY_FLASH_MODE, mParameters.isZoomSupported(), 954 SETTING_KEYS, OTHER_SETTING_KEYS); 955 mIndicatorControlContainer.setListener(this); 956 } 957 958 private boolean collapseCameraControls() { 959 if ((mIndicatorControlContainer != null) 960 && mIndicatorControlContainer.dismissSettingPopup()) { 961 return true; 962 } 963 return false; 964 } 965 966 private void enableCameraControls(boolean enable) { 967 if (mIndicatorControlContainer != null) { 968 mIndicatorControlContainer.setEnabled(enable); 969 } 970 if (mModePicker != null) mModePicker.setEnabled(enable); 971 if (mZoomControl != null) mZoomControl.setEnabled(enable); 972 } 973 974 public static int roundOrientation(int orientation) { 975 return ((orientation + 45) / 90 * 90) % 360; 976 } 977 978 private class MyOrientationEventListener 979 extends OrientationEventListener { 980 public MyOrientationEventListener(Context context) { 981 super(context); 982 } 983 984 @Override 985 public void onOrientationChanged(int orientation) { 986 // We keep the last known orientation. So if the user first orient 987 // the camera then point the camera to floor or sky, we still have 988 // the correct orientation. 989 if (orientation == ORIENTATION_UNKNOWN) return; 990 mOrientation = roundOrientation(orientation); 991 // When the screen is unlocked, display rotation may change. Always 992 // calculate the up-to-date orientationCompensation. 993 int orientationCompensation = mOrientation 994 + Util.getDisplayRotation(Camera.this); 995 if (mOrientationCompensation != orientationCompensation) { 996 mOrientationCompensation = orientationCompensation; 997 setOrientationIndicator(mOrientationCompensation); 998 } 999 1000 // Show the toast after getting the first orientation changed. 1001 if (mHandler.hasMessages(SHOW_TAP_TO_FOCUS_TOAST)) { 1002 mHandler.removeMessages(SHOW_TAP_TO_FOCUS_TOAST); 1003 showTapToFocusToast(); 1004 } 1005 } 1006 } 1007 1008 private void setOrientationIndicator(int degree) { 1009 if (mThumbnailView != null) mThumbnailView.setDegree(degree); 1010 if (mModePicker != null) mModePicker.setDegree(degree); 1011 if (mSharePopup != null) mSharePopup.setOrientation(degree); 1012 if (mIndicatorControlContainer != null) mIndicatorControlContainer.setDegree(degree); 1013 if (mZoomControl != null) mZoomControl.setDegree(degree); 1014 if (mFocusIndicator != null) mFocusIndicator.setOrientation(degree); 1015 if (mFaceView != null) mFaceView.setOrientation(degree); 1016 } 1017 1018 @Override 1019 public void onStop() { 1020 super.onStop(); 1021 if (mMediaProviderClient != null) { 1022 mMediaProviderClient.release(); 1023 mMediaProviderClient = null; 1024 } 1025 } 1026 1027 private void checkStorage() { 1028 mPicturesRemaining = Storage.getAvailableSpace(); 1029 if (mPicturesRemaining > 0) { 1030 mPicturesRemaining /= 1500000; 1031 } 1032 updateStorageHint(); 1033 } 1034 1035 @OnClickAttr 1036 public void onThumbnailClicked(View v) { 1037 if (isCameraIdle() && mThumbnail != null) { 1038 showSharePopup(); 1039 } 1040 } 1041 1042 @OnClickAttr 1043 public void onRetakeButtonClicked(View v) { 1044 hidePostCaptureAlert(); 1045 startPreview(); 1046 } 1047 1048 @OnClickAttr 1049 public void onDoneButtonClicked(View v) { 1050 doAttach(); 1051 } 1052 1053 @OnClickAttr 1054 public void onCancelButtonClicked(View v) { 1055 doCancel(); 1056 } 1057 1058 private void doAttach() { 1059 if (mPausing) { 1060 return; 1061 } 1062 1063 byte[] data = mJpegImageData; 1064 1065 if (mCropValue == null) { 1066 // First handle the no crop case -- just return the value. If the 1067 // caller specifies a "save uri" then write the data to it's 1068 // stream. Otherwise, pass back a scaled down version of the bitmap 1069 // directly in the extras. 1070 if (mSaveUri != null) { 1071 OutputStream outputStream = null; 1072 try { 1073 outputStream = mContentResolver.openOutputStream(mSaveUri); 1074 outputStream.write(data); 1075 outputStream.close(); 1076 1077 setResultEx(RESULT_OK); 1078 finish(); 1079 } catch (IOException ex) { 1080 // ignore exception 1081 } finally { 1082 Util.closeSilently(outputStream); 1083 } 1084 } else { 1085 int orientation = Exif.getOrientation(data); 1086 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1087 bitmap = Util.rotate(bitmap, orientation); 1088 setResultEx(RESULT_OK, 1089 new Intent("inline-data").putExtra("data", bitmap)); 1090 finish(); 1091 } 1092 } else { 1093 // Save the image to a temp file and invoke the cropper 1094 Uri tempUri = null; 1095 FileOutputStream tempStream = null; 1096 try { 1097 File path = getFileStreamPath(sTempCropFilename); 1098 path.delete(); 1099 tempStream = openFileOutput(sTempCropFilename, 0); 1100 tempStream.write(data); 1101 tempStream.close(); 1102 tempUri = Uri.fromFile(path); 1103 } catch (FileNotFoundException ex) { 1104 setResultEx(Activity.RESULT_CANCELED); 1105 finish(); 1106 return; 1107 } catch (IOException ex) { 1108 setResultEx(Activity.RESULT_CANCELED); 1109 finish(); 1110 return; 1111 } finally { 1112 Util.closeSilently(tempStream); 1113 } 1114 1115 Bundle newExtras = new Bundle(); 1116 if (mCropValue.equals("circle")) { 1117 newExtras.putString("circleCrop", "true"); 1118 } 1119 if (mSaveUri != null) { 1120 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1121 } else { 1122 newExtras.putBoolean("return-data", true); 1123 } 1124 1125 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1126 1127 cropIntent.setData(tempUri); 1128 cropIntent.putExtras(newExtras); 1129 1130 startActivityForResult(cropIntent, CROP_MSG); 1131 } 1132 } 1133 1134 private void doCancel() { 1135 setResultEx(RESULT_CANCELED, new Intent()); 1136 finish(); 1137 } 1138 1139 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1140 switch (button.getId()) { 1141 case R.id.shutter_button: 1142 doFocus(pressed); 1143 break; 1144 } 1145 } 1146 1147 public void onShutterButtonClick(ShutterButton button) { 1148 switch (button.getId()) { 1149 case R.id.shutter_button: 1150 doSnap(); 1151 break; 1152 } 1153 } 1154 1155 private OnScreenHint mStorageHint; 1156 1157 private void updateStorageHint() { 1158 String noStorageText = null; 1159 1160 if (mPicturesRemaining == Storage.UNAVAILABLE) { 1161 noStorageText = getString(R.string.no_storage); 1162 } else if (mPicturesRemaining == Storage.PREPARING) { 1163 noStorageText = getString(R.string.preparing_sd); 1164 } else if (mPicturesRemaining == Storage.UNKNOWN_SIZE) { 1165 noStorageText = getString(R.string.access_sd_fail); 1166 } else if (mPicturesRemaining < 1L) { 1167 noStorageText = getString(R.string.not_enough_space); 1168 } 1169 1170 if (noStorageText != null) { 1171 if (mStorageHint == null) { 1172 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1173 } else { 1174 mStorageHint.setText(noStorageText); 1175 } 1176 mStorageHint.show(); 1177 } else if (mStorageHint != null) { 1178 mStorageHint.cancel(); 1179 mStorageHint = null; 1180 } 1181 } 1182 1183 private void installIntentFilter() { 1184 // install an intent filter to receive SD card related events. 1185 IntentFilter intentFilter = 1186 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1187 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1188 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1189 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1190 intentFilter.addDataScheme("file"); 1191 registerReceiver(mReceiver, intentFilter); 1192 mDidRegister = true; 1193 } 1194 1195 private void initializeScreenBrightness() { 1196 Window win = getWindow(); 1197 // Overright the brightness settings if it is automatic 1198 int mode = Settings.System.getInt( 1199 getContentResolver(), 1200 Settings.System.SCREEN_BRIGHTNESS_MODE, 1201 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); 1202 if (mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC) { 1203 WindowManager.LayoutParams winParams = win.getAttributes(); 1204 winParams.screenBrightness = DEFAULT_CAMERA_BRIGHTNESS; 1205 win.setAttributes(winParams); 1206 } 1207 } 1208 1209 @Override 1210 protected void onResume() { 1211 super.onResume(); 1212 mPausing = false; 1213 if (mOpenCameraFail || mCameraDisabled) return; 1214 1215 mJpegPictureCallbackTime = 0; 1216 mZoomValue = 0; 1217 1218 // Start the preview if it is not started. 1219 if (mCameraState == PREVIEW_STOPPED) { 1220 try { 1221 mCameraDevice = Util.openCamera(this, mCameraId); 1222 initializeCapabilities(); 1223 resetExposureCompensation(); 1224 startPreview(); 1225 } catch(CameraHardwareException e) { 1226 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1227 return; 1228 } catch(CameraDisabledException e) { 1229 Util.showErrorAndFinish(this, R.string.camera_disabled); 1230 return; 1231 } 1232 } 1233 1234 if (mSurfaceHolder != null) { 1235 // If first time initialization is not finished, put it in the 1236 // message queue. 1237 if (!mFirstTimeInitialized) { 1238 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1239 } else { 1240 initializeSecondTime(); 1241 } 1242 } 1243 keepScreenOnAwhile(); 1244 1245 if (mCameraState == IDLE) { 1246 mOnResumeTime = SystemClock.uptimeMillis(); 1247 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 1248 } 1249 } 1250 1251 @Override 1252 protected void onPause() { 1253 mPausing = true; 1254 stopPreview(); 1255 // Close the camera now because other activities may need to use it. 1256 closeCamera(); 1257 resetScreenOn(); 1258 1259 // Clear UI. 1260 collapseCameraControls(); 1261 if (mSharePopup != null) mSharePopup.dismiss(); 1262 if (mFaceView != null) mFaceView.clear(); 1263 1264 if (mFirstTimeInitialized) { 1265 mOrientationListener.disable(); 1266 if (!mIsImageCaptureIntent) { 1267 if (mThumbnail != null) { 1268 mThumbnail.saveTo(new File(getFilesDir(), Thumbnail.LAST_THUMB_FILENAME)); 1269 } 1270 } 1271 } 1272 1273 if (mDidRegister) { 1274 unregisterReceiver(mReceiver); 1275 mDidRegister = false; 1276 } 1277 mLocationManager.recordLocation(false); 1278 updateExposureOnScreenIndicator(0); 1279 1280 mFocusManager.releaseToneGenerator(); 1281 1282 if (mStorageHint != null) { 1283 mStorageHint.cancel(); 1284 mStorageHint = null; 1285 } 1286 1287 // If we are in an image capture intent and has taken 1288 // a picture, we just clear it in onPause. 1289 mJpegImageData = null; 1290 1291 // Remove the messages in the event queue. 1292 mHandler.removeMessages(FIRST_TIME_INIT); 1293 mHandler.removeMessages(CHECK_DISPLAY_ROTATION); 1294 mFocusManager.removeMessages(); 1295 1296 super.onPause(); 1297 } 1298 1299 @Override 1300 protected void onActivityResult( 1301 int requestCode, int resultCode, Intent data) { 1302 switch (requestCode) { 1303 case CROP_MSG: { 1304 Intent intent = new Intent(); 1305 if (data != null) { 1306 Bundle extras = data.getExtras(); 1307 if (extras != null) { 1308 intent.putExtras(extras); 1309 } 1310 } 1311 setResultEx(resultCode, intent); 1312 finish(); 1313 1314 File path = getFileStreamPath(sTempCropFilename); 1315 path.delete(); 1316 1317 break; 1318 } 1319 } 1320 } 1321 1322 private boolean canTakePicture() { 1323 return isCameraIdle() && (mPicturesRemaining > 0); 1324 } 1325 1326 @Override 1327 public void autoFocus() { 1328 mFocusStartTime = System.currentTimeMillis(); 1329 mCameraDevice.autoFocus(mAutoFocusCallback); 1330 mCameraState = FOCUSING; 1331 enableCameraControls(false); 1332 } 1333 1334 @Override 1335 public void cancelAutoFocus() { 1336 mCameraDevice.cancelAutoFocus(); 1337 mCameraState = IDLE; 1338 enableCameraControls(true); 1339 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1340 } 1341 1342 // Preview area is touched. Handle touch focus. 1343 @Override 1344 public boolean onTouch(View v, MotionEvent e) { 1345 if (mPausing || !mFirstTimeInitialized || mCameraState == SNAPSHOT_IN_PROGRESS) { 1346 return false; 1347 } 1348 1349 // Do not trigger touch focus if popup window is opened. 1350 if (collapseCameraControls()) return false; 1351 1352 // Check if metering area or focus area is supported. 1353 if (!mFocusAreaSupported && !mMeteringAreaSupported) return false; 1354 1355 return mFocusManager.onTouch(e); 1356 } 1357 1358 @Override 1359 public void onBackPressed() { 1360 if (!isCameraIdle()) { 1361 // ignore backs while we're taking a picture 1362 return; 1363 } else if (!collapseCameraControls()) { 1364 super.onBackPressed(); 1365 } 1366 } 1367 1368 @Override 1369 public boolean onKeyDown(int keyCode, KeyEvent event) { 1370 switch (keyCode) { 1371 case KeyEvent.KEYCODE_FOCUS: 1372 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1373 doFocus(true); 1374 } 1375 return true; 1376 case KeyEvent.KEYCODE_CAMERA: 1377 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1378 doSnap(); 1379 } 1380 return true; 1381 case KeyEvent.KEYCODE_DPAD_CENTER: 1382 // If we get a dpad center event without any focused view, move 1383 // the focus to the shutter button and press it. 1384 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1385 // Start auto-focus immediately to reduce shutter lag. After 1386 // the shutter button gets the focus, doFocus() will be 1387 // called again but it is fine. 1388 if (collapseCameraControls()) return true; 1389 doFocus(true); 1390 if (mShutterButton.isInTouchMode()) { 1391 mShutterButton.requestFocusFromTouch(); 1392 } else { 1393 mShutterButton.requestFocus(); 1394 } 1395 mShutterButton.setPressed(true); 1396 } 1397 return true; 1398 } 1399 1400 return super.onKeyDown(keyCode, event); 1401 } 1402 1403 @Override 1404 public boolean onKeyUp(int keyCode, KeyEvent event) { 1405 switch (keyCode) { 1406 case KeyEvent.KEYCODE_FOCUS: 1407 if (mFirstTimeInitialized) { 1408 doFocus(false); 1409 } 1410 return true; 1411 } 1412 return super.onKeyUp(keyCode, event); 1413 } 1414 1415 private void doSnap() { 1416 if (mPausing || collapseCameraControls()) return; 1417 1418 // Do not take the picture if there is not enough storage. 1419 if (mPicturesRemaining <= 0) { 1420 Log.i(TAG, "Not enough space or storage not ready. remaining=" + mPicturesRemaining); 1421 return; 1422 } 1423 1424 Log.v(TAG, "doSnap: mCameraState=" + mCameraState); 1425 mFocusManager.doSnap(); 1426 } 1427 1428 private void doFocus(boolean pressed) { 1429 if (mPausing || collapseCameraControls()) return; 1430 1431 // Do not do focus if there is not enough storage. 1432 if (pressed && !canTakePicture()) return; 1433 1434 mFocusManager.doFocus(pressed); 1435 } 1436 1437 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1438 // Make sure we have a surface in the holder before proceeding. 1439 if (holder.getSurface() == null) { 1440 Log.d(TAG, "holder.getSurface() == null"); 1441 return; 1442 } 1443 1444 Log.v(TAG, "surfaceChanged. w=" + w + ". h=" + h); 1445 1446 // We need to save the holder for later use, even when the mCameraDevice 1447 // is null. This could happen if onResume() is invoked after this 1448 // function. 1449 mSurfaceHolder = holder; 1450 1451 // The mCameraDevice will be null if it fails to connect to the camera 1452 // hardware. In this case we will show a dialog and then finish the 1453 // activity, so it's OK to ignore it. 1454 if (mCameraDevice == null) return; 1455 1456 // Sometimes surfaceChanged is called after onPause or before onResume. 1457 // Ignore it. 1458 if (mPausing || isFinishing()) return; 1459 1460 // Set preview display if the surface is being created. Preview was 1461 // already started. Also restart the preview if display rotation has 1462 // changed. Sometimes this happens when the device is held in portrait 1463 // and camera app is opened. Rotation animation takes some time and 1464 // display rotation in onCreate may not be what we want. 1465 if (mCameraState != PREVIEW_STOPPED 1466 && (Util.getDisplayRotation(this) == mDisplayRotation) 1467 && holder.isCreating()) { 1468 // Set preview display if the surface is being created and preview 1469 // was already started. That means preview display was set to null 1470 // and we need to set it now. 1471 setPreviewDisplay(holder); 1472 } else { 1473 // 1. Restart the preview if the size of surface was changed. The 1474 // framework may not support changing preview display on the fly. 1475 // 2. Start the preview now if surface was destroyed and preview 1476 // stopped. 1477 startPreview(); 1478 } 1479 1480 // If first time initialization is not finished, send a message to do 1481 // it later. We want to finish surfaceChanged as soon as possible to let 1482 // user see preview first. 1483 if (!mFirstTimeInitialized) { 1484 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1485 } else { 1486 initializeSecondTime(); 1487 } 1488 } 1489 1490 public void surfaceCreated(SurfaceHolder holder) { 1491 } 1492 1493 public void surfaceDestroyed(SurfaceHolder holder) { 1494 stopPreview(); 1495 mSurfaceHolder = null; 1496 } 1497 1498 private void closeCamera() { 1499 if (mCameraDevice != null) { 1500 CameraHolder.instance().release(); 1501 mCameraDevice.setZoomChangeListener(null); 1502 mCameraDevice.setFaceDetectionListener(null); 1503 mCameraDevice = null; 1504 mCameraState = PREVIEW_STOPPED; 1505 mFocusManager.onCameraReleased(); 1506 } 1507 } 1508 1509 private void setPreviewDisplay(SurfaceHolder holder) { 1510 try { 1511 mCameraDevice.setPreviewDisplay(holder); 1512 } catch (Throwable ex) { 1513 closeCamera(); 1514 throw new RuntimeException("setPreviewDisplay failed", ex); 1515 } 1516 } 1517 1518 private void startPreview() { 1519 if (mPausing || isFinishing()) return; 1520 1521 mFocusManager.resetTouchFocus(); 1522 1523 mCameraDevice.setErrorCallback(mErrorCallback); 1524 1525 // If we're previewing already, stop the preview first (this will blank 1526 // the screen). 1527 if (mCameraState != PREVIEW_STOPPED) stopPreview(); 1528 1529 setPreviewDisplay(mSurfaceHolder); 1530 mDisplayRotation = Util.getDisplayRotation(this); 1531 mDisplayOrientation = Util.getDisplayOrientation(mDisplayRotation, mCameraId); 1532 mCameraDevice.setDisplayOrientation(mDisplayOrientation); 1533 if (mFaceView != null) { 1534 mFaceView.setDisplayOrientation(mDisplayOrientation); 1535 } 1536 setCameraParameters(UPDATE_PARAM_ALL); 1537 1538 try { 1539 Log.v(TAG, "startPreview"); 1540 mCameraDevice.startPreview(); 1541 } catch (Throwable ex) { 1542 closeCamera(); 1543 throw new RuntimeException("startPreview failed", ex); 1544 } 1545 1546 startFaceDetection(); 1547 mZoomState = ZOOM_STOPPED; 1548 mCameraState = IDLE; 1549 mFocusManager.onPreviewStarted(); 1550 } 1551 1552 private void stopPreview() { 1553 if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) { 1554 Log.v(TAG, "stopPreview"); 1555 mCameraDevice.stopPreview(); 1556 } 1557 mCameraState = PREVIEW_STOPPED; 1558 mFocusManager.onPreviewStopped(); 1559 } 1560 1561 private static boolean isSupported(String value, List<String> supported) { 1562 return supported == null ? false : supported.indexOf(value) >= 0; 1563 } 1564 1565 private void updateCameraParametersInitialize() { 1566 // Reset preview frame rate to the maximum because it may be lowered by 1567 // video camera application. 1568 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1569 if (frameRates != null) { 1570 Integer max = Collections.max(frameRates); 1571 mParameters.setPreviewFrameRate(max); 1572 } 1573 1574 mParameters.setRecordingHint(false); 1575 } 1576 1577 private void updateCameraParametersZoom() { 1578 // Set zoom. 1579 if (mParameters.isZoomSupported()) { 1580 mParameters.setZoom(mZoomValue); 1581 } 1582 } 1583 1584 private void updateCameraParametersPreference() { 1585 if (mFocusAreaSupported) { 1586 mParameters.setFocusAreas(mFocusManager.getTapArea()); 1587 } 1588 1589 if (mMeteringAreaSupported) { 1590 // Use the same area for focus and metering. 1591 mParameters.setMeteringAreas(mFocusManager.getTapArea()); 1592 } 1593 1594 // Set picture size. 1595 String pictureSize = mPreferences.getString( 1596 CameraSettings.KEY_PICTURE_SIZE, null); 1597 if (pictureSize == null) { 1598 CameraSettings.initialCameraPictureSize(this, mParameters); 1599 } else { 1600 List<Size> supported = mParameters.getSupportedPictureSizes(); 1601 CameraSettings.setCameraPictureSize( 1602 pictureSize, supported, mParameters); 1603 } 1604 1605 // Set the preview frame aspect ratio according to the picture size. 1606 Size size = mParameters.getPictureSize(); 1607 1608 mPreviewFrameLayout = (PreviewFrameLayout) findViewById(R.id.frame_layout); 1609 mPreviewFrameLayout.setAspectRatio((double) size.width / size.height); 1610 1611 // Set a preview size that is closest to the viewfinder height and has 1612 // the right aspect ratio. 1613 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1614 Size optimalSize = Util.getOptimalPreviewSize(this, 1615 sizes, (double) size.width / size.height); 1616 Size original = mParameters.getPreviewSize(); 1617 if (!original.equals(optimalSize)) { 1618 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1619 1620 // Zoom related settings will be changed for different preview 1621 // sizes, so set and read the parameters to get lastest values 1622 mCameraDevice.setParameters(mParameters); 1623 mParameters = mCameraDevice.getParameters(); 1624 } 1625 Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height); 1626 1627 // Since change scene mode may change supported values, 1628 // Set scene mode first, 1629 mSceneMode = mPreferences.getString( 1630 CameraSettings.KEY_SCENE_MODE, 1631 getString(R.string.pref_camera_scenemode_default)); 1632 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 1633 if (!mParameters.getSceneMode().equals(mSceneMode)) { 1634 mParameters.setSceneMode(mSceneMode); 1635 mCameraDevice.setParameters(mParameters); 1636 1637 // Setting scene mode will change the settings of flash mode, 1638 // white balance, and focus mode. Here we read back the 1639 // parameters, so we can know those settings. 1640 mParameters = mCameraDevice.getParameters(); 1641 } 1642 } else { 1643 mSceneMode = mParameters.getSceneMode(); 1644 if (mSceneMode == null) { 1645 mSceneMode = Parameters.SCENE_MODE_AUTO; 1646 } 1647 } 1648 1649 // Set JPEG quality. 1650 int jpegQuality = CameraProfile.getJpegEncodingQualityParameter(mCameraId, 1651 CameraProfile.QUALITY_HIGH); 1652 mParameters.setJpegQuality(jpegQuality); 1653 1654 // For the following settings, we need to check if the settings are 1655 // still supported by latest driver, if not, ignore the settings. 1656 1657 // Set exposure compensation 1658 int value = CameraSettings.readExposure(mPreferences); 1659 int max = mParameters.getMaxExposureCompensation(); 1660 int min = mParameters.getMinExposureCompensation(); 1661 if (value >= min && value <= max) { 1662 mParameters.setExposureCompensation(value); 1663 } else { 1664 Log.w(TAG, "invalid exposure range: " + value); 1665 } 1666 1667 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1668 // Set flash mode. 1669 String flashMode = mPreferences.getString( 1670 CameraSettings.KEY_FLASH_MODE, 1671 getString(R.string.pref_camera_flashmode_default)); 1672 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 1673 if (isSupported(flashMode, supportedFlash)) { 1674 mParameters.setFlashMode(flashMode); 1675 } else { 1676 flashMode = mParameters.getFlashMode(); 1677 if (flashMode == null) { 1678 flashMode = getString( 1679 R.string.pref_camera_flashmode_no_flash); 1680 } 1681 } 1682 1683 // Set white balance parameter. 1684 String whiteBalance = mPreferences.getString( 1685 CameraSettings.KEY_WHITE_BALANCE, 1686 getString(R.string.pref_camera_whitebalance_default)); 1687 if (isSupported(whiteBalance, 1688 mParameters.getSupportedWhiteBalance())) { 1689 mParameters.setWhiteBalance(whiteBalance); 1690 } else { 1691 whiteBalance = mParameters.getWhiteBalance(); 1692 if (whiteBalance == null) { 1693 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 1694 } 1695 } 1696 1697 // Set focus mode. 1698 mFocusManager.overrideFocusMode(null); 1699 mParameters.setFocusMode(mFocusManager.getFocusMode()); 1700 } else { 1701 mFocusManager.overrideFocusMode(mParameters.getFocusMode()); 1702 } 1703 } 1704 1705 // We separate the parameters into several subsets, so we can update only 1706 // the subsets actually need updating. The PREFERENCE set needs extra 1707 // locking because the preference can be changed from GLThread as well. 1708 private void setCameraParameters(int updateSet) { 1709 mParameters = mCameraDevice.getParameters(); 1710 1711 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 1712 updateCameraParametersInitialize(); 1713 } 1714 1715 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 1716 updateCameraParametersZoom(); 1717 } 1718 1719 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 1720 updateCameraParametersPreference(); 1721 } 1722 1723 mCameraDevice.setParameters(mParameters); 1724 } 1725 1726 // If the Camera is idle, update the parameters immediately, otherwise 1727 // accumulate them in mUpdateSet and update later. 1728 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 1729 mUpdateSet |= additionalUpdateSet; 1730 if (mCameraDevice == null) { 1731 // We will update all the parameters when we open the device, so 1732 // we don't need to do anything now. 1733 mUpdateSet = 0; 1734 return; 1735 } else if (isCameraIdle()) { 1736 setCameraParameters(mUpdateSet); 1737 updateSceneModeUI(); 1738 mUpdateSet = 0; 1739 } else { 1740 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 1741 mHandler.sendEmptyMessageDelayed( 1742 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 1743 } 1744 } 1745 } 1746 1747 private void gotoGallery() { 1748 MenuHelper.gotoCameraImageGallery(this); 1749 } 1750 1751 private boolean isCameraIdle() { 1752 return (mCameraState == IDLE) || (mFocusManager.isFocusCompleted()); 1753 } 1754 1755 private boolean isImageCaptureIntent() { 1756 String action = getIntent().getAction(); 1757 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 1758 } 1759 1760 private void setupCaptureParams() { 1761 Bundle myExtras = getIntent().getExtras(); 1762 if (myExtras != null) { 1763 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 1764 mCropValue = myExtras.getString("crop"); 1765 } 1766 } 1767 1768 private void showPostCaptureAlert() { 1769 if (mIsImageCaptureIntent) { 1770 Util.fadeOut(mIndicatorControlContainer); 1771 Util.fadeOut(mShutterButton); 1772 1773 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1774 for (int id : pickIds) { 1775 Util.fadeIn(findViewById(id)); 1776 } 1777 } 1778 } 1779 1780 private void hidePostCaptureAlert() { 1781 if (mIsImageCaptureIntent) { 1782 enableCameraControls(true); 1783 1784 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1785 for (int id : pickIds) { 1786 Util.fadeOut(findViewById(id)); 1787 } 1788 1789 Util.fadeIn(mShutterButton); 1790 Util.fadeIn(mIndicatorControlContainer); 1791 } 1792 } 1793 1794 @Override 1795 public boolean onPrepareOptionsMenu(Menu menu) { 1796 super.onPrepareOptionsMenu(menu); 1797 // Only show the menu when camera is idle. 1798 for (int i = 0; i < menu.size(); i++) { 1799 menu.getItem(i).setVisible(isCameraIdle()); 1800 } 1801 1802 return true; 1803 } 1804 1805 @Override 1806 public boolean onCreateOptionsMenu(Menu menu) { 1807 super.onCreateOptionsMenu(menu); 1808 1809 if (mIsImageCaptureIntent) { 1810 // No options menu for attach mode. 1811 return false; 1812 } else { 1813 addBaseMenuItems(menu); 1814 } 1815 return true; 1816 } 1817 1818 private void addBaseMenuItems(Menu menu) { 1819 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_VIDEO, new Runnable() { 1820 public void run() { 1821 switchToOtherMode(ModePicker.MODE_VIDEO); 1822 } 1823 }); 1824 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_PANORAMA, new Runnable() { 1825 public void run() { 1826 switchToOtherMode(ModePicker.MODE_PANORAMA); 1827 } 1828 }); 1829 MenuItem gallery = menu.add(R.string.camera_gallery_photos_text) 1830 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1831 public boolean onMenuItemClick(MenuItem item) { 1832 gotoGallery(); 1833 return true; 1834 } 1835 }); 1836 gallery.setIcon(android.R.drawable.ic_menu_gallery); 1837 mGalleryItems.add(gallery); 1838 1839 if (mNumberOfCameras > 1) { 1840 menu.add(R.string.switch_camera_id) 1841 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1842 public boolean onMenuItemClick(MenuItem item) { 1843 CameraSettings.writePreferredCameraId(mPreferences, 1844 ((mCameraId == mFrontCameraId) 1845 ? mBackCameraId : mFrontCameraId)); 1846 onSharedPreferenceChanged(); 1847 return true; 1848 } 1849 }).setIcon(android.R.drawable.ic_menu_camera); 1850 } 1851 } 1852 1853 private boolean switchToOtherMode(int mode) { 1854 if (isFinishing() || !isCameraIdle()) return false; 1855 MenuHelper.gotoMode(mode, Camera.this); 1856 mHandler.removeMessages(FIRST_TIME_INIT); 1857 finish(); 1858 return true; 1859 } 1860 1861 public boolean onModeChanged(int mode) { 1862 if (mode != ModePicker.MODE_CAMERA) { 1863 return switchToOtherMode(mode); 1864 } else { 1865 return true; 1866 } 1867 } 1868 1869 public void onSharedPreferenceChanged() { 1870 // ignore the events after "onPause()" 1871 if (mPausing) return; 1872 1873 boolean recordLocation = RecordLocationPreference.get( 1874 mPreferences, getContentResolver()); 1875 mLocationManager.recordLocation(recordLocation); 1876 1877 int cameraId = CameraSettings.readPreferredCameraId(mPreferences); 1878 if (mCameraId != cameraId) { 1879 // Restart the activity to have a crossfade animation. 1880 // TODO: Use SurfaceTexture to implement a better and faster 1881 // animation. 1882 if (mIsImageCaptureIntent) { 1883 // If the intent is camera capture, stay in camera capture mode. 1884 MenuHelper.gotoCameraMode(this, getIntent()); 1885 } else { 1886 MenuHelper.gotoCameraMode(this); 1887 } 1888 1889 finish(); 1890 } else { 1891 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 1892 } 1893 1894 int exposureValue = CameraSettings.readExposure(mPreferences); 1895 updateExposureOnScreenIndicator(exposureValue); 1896 } 1897 1898 @Override 1899 public void onUserInteraction() { 1900 super.onUserInteraction(); 1901 keepScreenOnAwhile(); 1902 } 1903 1904 private void resetScreenOn() { 1905 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 1906 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1907 } 1908 1909 private void keepScreenOnAwhile() { 1910 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 1911 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1912 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 1913 } 1914 1915 public void onRestorePreferencesClicked() { 1916 if (mPausing) return; 1917 Runnable runnable = new Runnable() { 1918 public void run() { 1919 restorePreferences(); 1920 } 1921 }; 1922 MenuHelper.confirmAction(this, 1923 getString(R.string.confirm_restore_title), 1924 getString(R.string.confirm_restore_message), 1925 runnable); 1926 } 1927 1928 private void restorePreferences() { 1929 // Reset the zoom. Zoom value is not stored in preference. 1930 if (mParameters.isZoomSupported()) { 1931 mZoomValue = 0; 1932 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 1933 mZoomControl.setZoomIndex(0); 1934 } 1935 if (mIndicatorControlContainer != null) { 1936 mIndicatorControlContainer.dismissSettingPopup(); 1937 CameraSettings.restorePreferences(Camera.this, mPreferences, 1938 mParameters); 1939 mIndicatorControlContainer.reloadPreferences(); 1940 onSharedPreferenceChanged(); 1941 } 1942 } 1943 1944 public void onOverriddenPreferencesClicked() { 1945 if (mPausing) return; 1946 if (mNotSelectableToast == null) { 1947 String str = getResources().getString(R.string.not_selectable_in_scene_mode); 1948 mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT); 1949 } 1950 mNotSelectableToast.show(); 1951 } 1952 1953 private void showSharePopup() { 1954 Uri uri = mThumbnail.getUri(); 1955 if (mSharePopup == null || !uri.equals(mSharePopup.getUri())) { 1956 mSharePopup = new SharePopup(this, uri, mThumbnail.getBitmap(), 1957 mOrientationCompensation, mPreviewFrameLayout); 1958 } 1959 mSharePopup.showAtLocation(mThumbnailView, Gravity.NO_GRAVITY, 0, 0); 1960 } 1961 1962 @Override 1963 public void onFaceDetection(Face[] faces, android.hardware.Camera camera) { 1964 mFaceView.setFaces(faces); 1965 } 1966 1967 private void showTapToFocusToast() { 1968 // Show the toast. 1969 RotateLayout v = (RotateLayout) findViewById(R.id.tap_to_focus_prompt); 1970 v.setOrientation(mOrientationCompensation); 1971 v.startAnimation(AnimationUtils.loadAnimation(this, R.anim.on_screen_hint_enter)); 1972 v.setVisibility(View.VISIBLE); 1973 mHandler.sendEmptyMessageDelayed(DISMISS_TAP_TO_FOCUS_TOAST, 5000); 1974 // Clear the preference. 1975 Editor editor = mPreferences.edit(); 1976 editor.putBoolean(CameraSettings.KEY_TAP_TO_FOCUS_PROMPT_SHOWN, false); 1977 editor.apply(); 1978 } 1979 1980 private void initializeCapabilities() { 1981 mInitialParams = mCameraDevice.getParameters(); 1982 mFocusManager.initializeParameters(mInitialParams); 1983 mFocusAreaSupported = (mInitialParams.getMaxNumFocusAreas() > 0 1984 && isSupported(Parameters.FOCUS_MODE_AUTO, 1985 mInitialParams.getSupportedFocusModes())); 1986 mMeteringAreaSupported = (mInitialParams.getMaxNumMeteringAreas() > 0); 1987 } 1988} 1989