Camera.java revision 595d33f1308089ea4e656e247548a71b218d9fa5
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 RESTART_PREVIEW = 3; 93 private static final int CLEAR_SCREEN_DELAY = 4; 94 private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 5; 95 private static final int CHECK_DISPLAY_ROTATION = 6; 96 private static final int SHOW_TAP_TO_FOCUS_TOAST = 7; 97 private static final int DISMISS_TAP_TO_FOCUS_TOAST = 8; 98 99 // The subset of parameters we need to update in setCameraParameters(). 100 private static final int UPDATE_PARAM_INITIALIZE = 1; 101 private static final int UPDATE_PARAM_ZOOM = 2; 102 private static final int UPDATE_PARAM_PREFERENCE = 4; 103 private static final int UPDATE_PARAM_ALL = -1; 104 105 // When setCameraParametersWhenIdle() is called, we accumulate the subsets 106 // needed to be updated in mUpdateSet. 107 private int mUpdateSet; 108 109 // The brightness settings used when it is set to automatic in the system. 110 // The reason why it is set to 0.7 is just because 1.0 is too bright. 111 private static final float DEFAULT_CAMERA_BRIGHTNESS = 0.7f; 112 113 private static final int SCREEN_DELAY = 2 * 60 * 1000; 114 115 private static final int ZOOM_STOPPED = 0; 116 private static final int ZOOM_START = 1; 117 private static final int ZOOM_STOPPING = 2; 118 119 private int mZoomState = ZOOM_STOPPED; 120 private boolean mSmoothZoomSupported = false; 121 private int mZoomValue; // The current zoom value. 122 private int mZoomMax; 123 private int mTargetZoomValue; 124 private ZoomControl mZoomControl; 125 126 private Parameters mParameters; 127 private Parameters mInitialParams; 128 private boolean mFocusAreaSupported; 129 private boolean mMeteringAreaSupported; 130 131 private MyOrientationEventListener mOrientationListener; 132 // The degrees of the device rotated clockwise from its natural orientation. 133 private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 134 // The orientation compensation for icons and thumbnails. Ex: if the value 135 // is 90, the UI components should be rotated 90 degrees counter-clockwise. 136 private int mOrientationCompensation = 0; 137 private ComboPreferences mPreferences; 138 139 private static final String sTempCropFilename = "crop-temp"; 140 141 private android.hardware.Camera mCameraDevice; 142 private ContentProviderClient mMediaProviderClient; 143 private SurfaceHolder mSurfaceHolder = null; 144 private ShutterButton mShutterButton; 145 private GestureDetector mPopupGestureDetector; 146 private boolean mOpenCameraFail = false; 147 private boolean mCameraDisabled = false; 148 149 private PreviewFrameLayout mPreviewFrameLayout; 150 private View mPreviewFrame; // Preview frame area. 151 152 // A popup window that contains a bigger thumbnail and a list of apps to share. 153 private SharePopup mSharePopup; 154 // The bitmap of the last captured picture thumbnail and the URI of the 155 // original picture. 156 private Thumbnail mThumbnail; 157 // An imageview showing showing the last captured picture thumbnail. 158 private RotateImageView mThumbnailView; 159 private ModePicker mModePicker; 160 private FaceView mFaceView; 161 private RotateLayout mFocusIndicator; 162 163 // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. 164 private String mCropValue; 165 private Uri mSaveUri; 166 167 // On-screen indicator 168 private View mGpsNoSignalIndicator; 169 private View mGpsHasSignalIndicator; 170 private TextView mExposureIndicator; 171 172 private final StringBuilder mBuilder = new StringBuilder(); 173 private final Formatter mFormatter = new Formatter(mBuilder); 174 private final Object[] mFormatterArgs = new Object[1]; 175 176 /** 177 * An unpublished intent flag requesting to return as soon as capturing 178 * is completed. 179 * 180 * TODO: consider publishing by moving into MediaStore. 181 */ 182 private final static String EXTRA_QUICK_CAPTURE = 183 "android.intent.extra.quickCapture"; 184 185 // The display rotation in degrees. This is only valid when mCameraState is 186 // not PREVIEW_STOPPED. 187 private int mDisplayRotation; 188 // The value for android.hardware.Camera.setDisplayOrientation. 189 private int mDisplayOrientation; 190 private boolean mPausing; 191 private boolean mFirstTimeInitialized; 192 private boolean mIsImageCaptureIntent; 193 194 private static final int PREVIEW_STOPPED = 0; 195 private static final int IDLE = 1; // preview is active 196 // Focus is in progress. The exact focus state is in Focus.java. 197 private static final int FOCUSING = 2; 198 private static final int SNAPSHOT_IN_PROGRESS = 3; 199 private int mCameraState = PREVIEW_STOPPED; 200 201 private ContentResolver mContentResolver; 202 private boolean mDidRegister = false; 203 204 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 205 206 private LocationManager mLocationManager; 207 208 private final ShutterCallback mShutterCallback = new ShutterCallback(); 209 private final PostViewPictureCallback mPostViewPictureCallback = 210 new PostViewPictureCallback(); 211 private final RawPictureCallback mRawPictureCallback = 212 new RawPictureCallback(); 213 private final AutoFocusCallback mAutoFocusCallback = 214 new AutoFocusCallback(); 215 private final ZoomListener mZoomListener = new ZoomListener(); 216 private final CameraErrorCallback mErrorCallback = new CameraErrorCallback(); 217 218 private long mFocusStartTime; 219 private long mCaptureStartTime; 220 private long mShutterCallbackTime; 221 private long mPostViewPictureCallbackTime; 222 private long mRawPictureCallbackTime; 223 private long mJpegPictureCallbackTime; 224 private long mOnResumeTime; 225 private long mPicturesRemaining; 226 private byte[] mJpegImageData; 227 228 // These latency time are for the CameraLatency test. 229 public long mAutoFocusTime; 230 public long mShutterLag; 231 public long mShutterToPictureDisplayedTime; 232 public long mPictureDisplayedToJpegCallbackTime; 233 public long mJpegCallbackFinishTime; 234 235 // This handles everything about focus. 236 private FocusManager mFocusManager; 237 private String mSceneMode; 238 private Toast mNotSelectableToast; 239 private Toast mNoShareToast; 240 241 private final Handler mHandler = new MainHandler(); 242 private IndicatorControlContainer mIndicatorControlContainer; 243 private PreferenceGroup mPreferenceGroup; 244 245 // multiple cameras support 246 private int mNumberOfCameras; 247 private int mCameraId; 248 private int mFrontCameraId; 249 private int mBackCameraId; 250 251 private boolean mQuickCapture; 252 253 /** 254 * This Handler is used to post message back onto the main thread of the 255 * application 256 */ 257 private class MainHandler extends Handler { 258 @Override 259 public void handleMessage(Message msg) { 260 switch (msg.what) { 261 case RESTART_PREVIEW: { 262 startPreview(); 263 if (mJpegPictureCallbackTime != 0) { 264 long now = System.currentTimeMillis(); 265 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 266 Log.v(TAG, "mJpegCallbackFinishTime = " 267 + mJpegCallbackFinishTime + "ms"); 268 mJpegPictureCallbackTime = 0; 269 } 270 break; 271 } 272 273 case CLEAR_SCREEN_DELAY: { 274 getWindow().clearFlags( 275 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 276 break; 277 } 278 279 case FIRST_TIME_INIT: { 280 initializeFirstTime(); 281 break; 282 } 283 284 case SET_CAMERA_PARAMETERS_WHEN_IDLE: { 285 setCameraParametersWhenIdle(0); 286 break; 287 } 288 289 case CHECK_DISPLAY_ROTATION: { 290 // Restart the preview if display rotation has changed. 291 // Sometimes this happens when the device is held upside 292 // down and camera app is opened. Rotation animation will 293 // take some time and the rotation value we have got may be 294 // wrong. Framework does not have a callback for this now. 295 if (Util.getDisplayRotation(Camera.this) != mDisplayRotation 296 && isCameraIdle()) { 297 startPreview(); 298 } 299 if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) { 300 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 301 } 302 break; 303 } 304 305 case SHOW_TAP_TO_FOCUS_TOAST: { 306 showTapToFocusToast(); 307 break; 308 } 309 310 case DISMISS_TAP_TO_FOCUS_TOAST: { 311 View v = findViewById(R.id.tap_to_focus_prompt); 312 v.setVisibility(View.GONE); 313 v.setAnimation(AnimationUtils.loadAnimation(Camera.this, 314 R.anim.on_screen_hint_exit)); 315 break; 316 } 317 } 318 } 319 } 320 321 private void resetExposureCompensation() { 322 String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, 323 CameraSettings.EXPOSURE_DEFAULT_VALUE); 324 if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { 325 Editor editor = mPreferences.edit(); 326 editor.putString(CameraSettings.KEY_EXPOSURE, "0"); 327 editor.apply(); 328 if (mIndicatorControlContainer != null) { 329 mIndicatorControlContainer.reloadPreferences(); 330 } 331 } 332 } 333 334 private void keepMediaProviderInstance() { 335 // We want to keep a reference to MediaProvider in camera's lifecycle. 336 // TODO: Utilize mMediaProviderClient instance to replace 337 // ContentResolver calls. 338 if (mMediaProviderClient == null) { 339 mMediaProviderClient = getContentResolver() 340 .acquireContentProviderClient(MediaStore.AUTHORITY); 341 } 342 } 343 344 // Snapshots can only be taken after this is called. It should be called 345 // once only. We could have done these things in onCreate() but we want to 346 // make preview screen appear as soon as possible. 347 private void initializeFirstTime() { 348 if (mFirstTimeInitialized) return; 349 350 // Create orientation listenter. This should be done first because it 351 // takes some time to get first orientation. 352 mOrientationListener = new MyOrientationEventListener(Camera.this); 353 mOrientationListener.enable(); 354 355 // Initialize location sevice. 356 boolean recordLocation = RecordLocationPreference.get( 357 mPreferences, getContentResolver()); 358 initOnScreenIndicator(); 359 mLocationManager.recordLocation(recordLocation); 360 361 keepMediaProviderInstance(); 362 checkStorage(); 363 364 // Initialize last picture button. 365 mContentResolver = getContentResolver(); 366 if (!mIsImageCaptureIntent) { // no thumbnail in image capture intent 367 initThumbnailButton(); 368 } 369 370 // Initialize shutter button. 371 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 372 mShutterButton.setOnShutterButtonListener(this); 373 mShutterButton.setVisibility(View.VISIBLE); 374 375 // Initialize focus UI. 376 mPreviewFrame = findViewById(R.id.camera_preview); 377 mPreviewFrame.setOnTouchListener(this); 378 mFocusIndicator = (RotateLayout) findViewById(R.id.focus_indicator_rotate_layout); 379 mFocusManager.initialize(mFocusIndicator, mPreviewFrame, mFaceView, this); 380 mFocusManager.initializeToneGenerator(); 381 initializeScreenBrightness(); 382 installIntentFilter(); 383 initializeZoom(); 384 // Show the tap to focus toast if this is the first start. 385 if (mFocusAreaSupported && 386 mPreferences.getBoolean(CameraSettings.KEY_TAP_TO_FOCUS_PROMPT_SHOWN, true)) { 387 // Delay the toast for one second to wait for orientation. 388 mHandler.sendEmptyMessageDelayed(SHOW_TAP_TO_FOCUS_TOAST, 1000); 389 } 390 391 mFirstTimeInitialized = true; 392 addIdleHandler(); 393 } 394 395 private void addIdleHandler() { 396 MessageQueue queue = Looper.myQueue(); 397 queue.addIdleHandler(new MessageQueue.IdleHandler() { 398 public boolean queueIdle() { 399 Storage.ensureOSXCompatible(); 400 return false; 401 } 402 }); 403 } 404 405 private void initThumbnailButton() { 406 // Load the thumbnail from the disk. 407 mThumbnail = Thumbnail.loadFrom(new File(getFilesDir(), Thumbnail.LAST_THUMB_FILENAME)); 408 updateThumbnailButton(); 409 } 410 411 private void updateThumbnailButton() { 412 // Update last image if URI is invalid and the storage is ready. 413 if ((mThumbnail == null || !Util.isUriValid(mThumbnail.getUri(), mContentResolver)) 414 && mPicturesRemaining >= 0) { 415 mThumbnail = Thumbnail.getLastThumbnail(mContentResolver); 416 } 417 if (mThumbnail != null) { 418 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 419 } else { 420 mThumbnailView.setBitmap(null); 421 } 422 } 423 424 // If the activity is paused and resumed, this method will be called in 425 // onResume. 426 private void initializeSecondTime() { 427 // Start orientation listener as soon as possible because it takes 428 // some time to get first orientation. 429 mOrientationListener.enable(); 430 431 // Start location update if needed. 432 boolean recordLocation = RecordLocationPreference.get( 433 mPreferences, getContentResolver()); 434 mLocationManager.recordLocation(recordLocation); 435 436 installIntentFilter(); 437 mFocusManager.initializeToneGenerator(); 438 initializeZoom(); 439 keepMediaProviderInstance(); 440 checkStorage(); 441 442 if (!mIsImageCaptureIntent) { 443 updateThumbnailButton(); 444 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 445 } 446 } 447 448 private class ZoomChangeListener implements ZoomControl.OnZoomChangedListener { 449 // only for immediate zoom 450 @Override 451 public void onZoomValueChanged(int index) { 452 Camera.this.onZoomValueChanged(index); 453 } 454 455 // only for smooth zoom 456 @Override 457 public void onZoomStateChanged(int state) { 458 if (mPausing) return; 459 460 Log.v(TAG, "zoom picker state=" + state); 461 if (state == ZoomControl.ZOOM_IN) { 462 Camera.this.onZoomValueChanged(mZoomMax); 463 } else if (state == ZoomControl.ZOOM_OUT) { 464 Camera.this.onZoomValueChanged(0); 465 } else { 466 mTargetZoomValue = -1; 467 if (mZoomState == ZOOM_START) { 468 mZoomState = ZOOM_STOPPING; 469 mCameraDevice.stopSmoothZoom(); 470 } 471 } 472 } 473 } 474 475 private void initializeZoom() { 476 if (!mParameters.isZoomSupported()) return; 477 mZoomMax = mParameters.getMaxZoom(); 478 mSmoothZoomSupported = mParameters.isSmoothZoomSupported(); 479 mZoomControl.setZoomMax(mZoomMax); 480 mZoomControl.setZoomIndex(mParameters.getZoom()); 481 mZoomControl.setSmoothZoomSupported(mSmoothZoomSupported); 482 mZoomControl.setOnZoomChangeListener(new ZoomChangeListener()); 483 mCameraDevice.setZoomChangeListener(mZoomListener); 484 } 485 486 private void onZoomValueChanged(int index) { 487 // Not useful to change zoom value when the activity is paused. 488 if (mPausing) return; 489 490 if (mSmoothZoomSupported) { 491 if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { 492 mTargetZoomValue = index; 493 if (mZoomState == ZOOM_START) { 494 mZoomState = ZOOM_STOPPING; 495 mCameraDevice.stopSmoothZoom(); 496 } 497 } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { 498 mTargetZoomValue = index; 499 mCameraDevice.startSmoothZoom(index); 500 mZoomState = ZOOM_START; 501 } 502 } else { 503 mZoomValue = index; 504 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 505 } 506 } 507 508 @Override 509 public void startFaceDetection() { 510 if (mParameters.getMaxNumDetectedFaces() > 0) { 511 mFaceView = (FaceView) findViewById(R.id.face_view); 512 mFaceView.clear(); 513 mFaceView.setVisibility(View.VISIBLE); 514 mFaceView.setDisplayOrientation(mDisplayOrientation); 515 CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; 516 mFaceView.setMirror(info.facing == CameraInfo.CAMERA_FACING_FRONT); 517 mFaceView.resume(); 518 mCameraDevice.setFaceDetectionListener(this); 519 mCameraDevice.startFaceDetection(); 520 } 521 } 522 523 @Override 524 public void stopFaceDetection() { 525 if (mParameters.getMaxNumDetectedFaces() > 0) { 526 mCameraDevice.setFaceDetectionListener(null); 527 mCameraDevice.stopFaceDetection(); 528 if (mFaceView != null) mFaceView.clear(); 529 } 530 } 531 532 private class PopupGestureListener 533 extends GestureDetector.SimpleOnGestureListener { 534 @Override 535 public boolean onDown(MotionEvent e) { 536 // Check if the popup window is visible. 537 View popup = mIndicatorControlContainer.getActiveSettingPopup(); 538 if (popup == null) return false; 539 540 541 // Let popup window, indicator control or preview frame handle the 542 // event by themselves. Dismiss the popup window if users touch on 543 // other areas. 544 if (!Util.pointInView(e.getX(), e.getY(), popup) 545 && !Util.pointInView(e.getX(), e.getY(), mIndicatorControlContainer) 546 && !Util.pointInView(e.getX(), e.getY(), mPreviewFrame)) { 547 mIndicatorControlContainer.dismissSettingPopup(); 548 // Let event fall through. 549 } 550 return false; 551 } 552 } 553 554 @Override 555 public boolean dispatchTouchEvent(MotionEvent m) { 556 // Check if the popup window should be dismissed first. 557 if (mPopupGestureDetector != null && mPopupGestureDetector.onTouchEvent(m)) { 558 return true; 559 } 560 561 return super.dispatchTouchEvent(m); 562 } 563 564 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 565 @Override 566 public void onReceive(Context context, Intent intent) { 567 String action = intent.getAction(); 568 Log.d(TAG, "Received intent action=" + action); 569 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 570 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 571 || action.equals(Intent.ACTION_MEDIA_CHECKING)) { 572 checkStorage(); 573 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 574 checkStorage(); 575 if (!mIsImageCaptureIntent) { 576 updateThumbnailButton(); 577 } 578 } 579 } 580 }; 581 582 private void initOnScreenIndicator() { 583 mGpsNoSignalIndicator = findViewById(R.id.onscreen_gps_indicator_no_signal); 584 mGpsHasSignalIndicator = findViewById(R.id.onscreen_gps_indicator_on); 585 mExposureIndicator = (TextView) findViewById(R.id.onscreen_exposure_indicator); 586 } 587 588 @Override 589 public void showGpsOnScreenIndicator(boolean hasSignal) { 590 if (hasSignal) { 591 if (mGpsNoSignalIndicator != null) { 592 mGpsNoSignalIndicator.setVisibility(View.GONE); 593 } 594 if (mGpsHasSignalIndicator != null) { 595 mGpsHasSignalIndicator.setVisibility(View.VISIBLE); 596 } 597 } else { 598 if (mGpsNoSignalIndicator != null) { 599 mGpsNoSignalIndicator.setVisibility(View.VISIBLE); 600 } 601 if (mGpsHasSignalIndicator != null) { 602 mGpsHasSignalIndicator.setVisibility(View.GONE); 603 } 604 } 605 } 606 607 @Override 608 public void hideGpsOnScreenIndicator() { 609 if (mGpsNoSignalIndicator != null) mGpsNoSignalIndicator.setVisibility(View.GONE); 610 if (mGpsHasSignalIndicator != null) mGpsHasSignalIndicator.setVisibility(View.GONE); 611 } 612 613 private void updateExposureOnScreenIndicator(int value) { 614 if (mExposureIndicator == null) return; 615 616 if (value == 0) { 617 mExposureIndicator.setText(""); 618 mExposureIndicator.setVisibility(View.GONE); 619 } else { 620 float step = mParameters.getExposureCompensationStep(); 621 mFormatterArgs[0] = value * step; 622 mBuilder.delete(0, mBuilder.length()); 623 mFormatter.format("%+1.1f", mFormatterArgs); 624 String exposure = mFormatter.toString(); 625 mExposureIndicator.setText(exposure); 626 mExposureIndicator.setVisibility(View.VISIBLE); 627 } 628 } 629 630 private final class ShutterCallback 631 implements android.hardware.Camera.ShutterCallback { 632 public void onShutter() { 633 mShutterCallbackTime = System.currentTimeMillis(); 634 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 635 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 636 mFocusManager.onShutter(); 637 } 638 } 639 640 private final class PostViewPictureCallback implements PictureCallback { 641 public void onPictureTaken( 642 byte [] data, android.hardware.Camera camera) { 643 mPostViewPictureCallbackTime = System.currentTimeMillis(); 644 Log.v(TAG, "mShutterToPostViewCallbackTime = " 645 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 646 + "ms"); 647 } 648 } 649 650 private final class RawPictureCallback implements PictureCallback { 651 public void onPictureTaken( 652 byte [] rawData, android.hardware.Camera camera) { 653 mRawPictureCallbackTime = System.currentTimeMillis(); 654 Log.v(TAG, "mShutterToRawCallbackTime = " 655 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 656 } 657 } 658 659 private final class JpegPictureCallback implements PictureCallback { 660 Location mLocation; 661 662 public JpegPictureCallback(Location loc) { 663 mLocation = loc; 664 } 665 666 public void onPictureTaken( 667 final byte [] jpegData, final android.hardware.Camera camera) { 668 if (mPausing) { 669 return; 670 } 671 672 mJpegPictureCallbackTime = System.currentTimeMillis(); 673 // If postview callback has arrived, the captured image is displayed 674 // in postview callback. If not, the captured image is displayed in 675 // raw picture callback. 676 if (mPostViewPictureCallbackTime != 0) { 677 mShutterToPictureDisplayedTime = 678 mPostViewPictureCallbackTime - mShutterCallbackTime; 679 mPictureDisplayedToJpegCallbackTime = 680 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 681 } else { 682 mShutterToPictureDisplayedTime = 683 mRawPictureCallbackTime - mShutterCallbackTime; 684 mPictureDisplayedToJpegCallbackTime = 685 mJpegPictureCallbackTime - mRawPictureCallbackTime; 686 } 687 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 688 + mPictureDisplayedToJpegCallbackTime + "ms"); 689 690 if (!mIsImageCaptureIntent) { 691 enableCameraControls(true); 692 693 // We want to show the taken picture for a while, so we wait 694 // for at least 0.5 second before restarting the preview. 695 long delay = 500 - mPictureDisplayedToJpegCallbackTime; 696 if (delay < 0) { 697 startPreview(); 698 } else { 699 mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay); 700 } 701 } 702 703 if (!mIsImageCaptureIntent) { 704 storeImage(jpegData, mLocation); 705 } else { 706 mJpegImageData = jpegData; 707 if (!mQuickCapture) { 708 showPostCaptureAlert(); 709 } else { 710 doAttach(); 711 } 712 } 713 714 // Check this in advance of each shot so we don't add to shutter 715 // latency. It's true that someone else could write to the SD card in 716 // the mean time and fill it, but that could have happened between the 717 // shutter press and saving the JPEG too. 718 checkStorage(); 719 720 if (!mHandler.hasMessages(RESTART_PREVIEW)) { 721 long now = System.currentTimeMillis(); 722 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 723 Log.v(TAG, "mJpegCallbackFinishTime = " 724 + mJpegCallbackFinishTime + "ms"); 725 mJpegPictureCallbackTime = 0; 726 } 727 } 728 } 729 730 private final class AutoFocusCallback 731 implements android.hardware.Camera.AutoFocusCallback { 732 public void onAutoFocus( 733 boolean focused, android.hardware.Camera camera) { 734 if (mPausing) return; 735 736 mAutoFocusTime = System.currentTimeMillis() - mFocusStartTime; 737 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 738 mFocusManager.onAutoFocus(focused); 739 // If focus completes and the snapshot is not started, enable the 740 // controls. 741 if (mFocusManager.isFocusCompleted()) { 742 enableCameraControls(true); 743 } 744 } 745 } 746 747 private final class ZoomListener 748 implements android.hardware.Camera.OnZoomChangeListener { 749 @Override 750 public void onZoomChange( 751 int value, boolean stopped, android.hardware.Camera camera) { 752 Log.v(TAG, "Zoom changed: value=" + value + ". stopped="+ stopped); 753 mZoomValue = value; 754 755 // Update the UI when we get zoom value. 756 mZoomControl.setZoomIndex(value); 757 758 // Keep mParameters up to date. We do not getParameter again in 759 // takePicture. If we do not do this, wrong zoom value will be set. 760 mParameters.setZoom(value); 761 762 if (stopped && mZoomState != ZOOM_STOPPED) { 763 if (mTargetZoomValue != -1 && value != mTargetZoomValue) { 764 mCameraDevice.startSmoothZoom(mTargetZoomValue); 765 mZoomState = ZOOM_START; 766 } else { 767 mZoomState = ZOOM_STOPPED; 768 } 769 } 770 } 771 } 772 773 private void storeImage(final byte[] data, Location loc) { 774 long dateTaken = System.currentTimeMillis(); 775 String title = Util.createJpegName(dateTaken); 776 int orientation = Exif.getOrientation(data); 777 Uri uri = Storage.addImage(mContentResolver, title, dateTaken, 778 loc, orientation, data); 779 if (uri != null) { 780 // Create a thumbnail whose width is equal or bigger than that of the preview. 781 int ratio = (int) Math.ceil((double) mParameters.getPictureSize().width 782 / mPreviewFrameLayout.getWidth()); 783 int inSampleSize = Integer.highestOneBit(ratio); 784 mThumbnail = Thumbnail.createThumbnail(data, orientation, inSampleSize, uri); 785 if (mThumbnail != null) { 786 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 787 } 788 Util.broadcastNewPicture(this, uri); 789 } 790 } 791 792 @Override 793 public boolean capture() { 794 // If we are already in the middle of taking a snapshot then ignore. 795 if (mCameraState == SNAPSHOT_IN_PROGRESS || mCameraDevice == null) { 796 return false; 797 } 798 mCaptureStartTime = System.currentTimeMillis(); 799 mPostViewPictureCallbackTime = 0; 800 enableCameraControls(false); 801 mJpegImageData = null; 802 803 // Set rotation and gps data. 804 Util.setRotationParameter(mParameters, mCameraId, mOrientation); 805 Location loc = mLocationManager.getCurrentLocation(); 806 Util.setGpsParameters(mParameters, loc); 807 mCameraDevice.setParameters(mParameters); 808 809 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 810 mPostViewPictureCallback, new JpegPictureCallback(loc)); 811 mCameraState = SNAPSHOT_IN_PROGRESS; 812 return true; 813 } 814 815 @Override 816 public void setFocusParameters() { 817 setCameraParameters(UPDATE_PARAM_PREFERENCE); 818 } 819 820 private boolean saveDataToFile(String filePath, byte[] data) { 821 FileOutputStream f = null; 822 try { 823 f = new FileOutputStream(filePath); 824 f.write(data); 825 } catch (IOException e) { 826 return false; 827 } finally { 828 Util.closeSilently(f); 829 } 830 return true; 831 } 832 833 @Override 834 public void onCreate(Bundle icicle) { 835 super.onCreate(icicle); 836 837 mIsImageCaptureIntent = isImageCaptureIntent(); 838 setContentView(R.layout.camera); 839 if (mIsImageCaptureIntent) { 840 findViewById(R.id.btn_cancel).setVisibility(View.VISIBLE); 841 } else { 842 mThumbnailView = (RotateImageView) findViewById(R.id.thumbnail); 843 mThumbnailView.setVisibility(View.VISIBLE); 844 } 845 846 mPreferences = new ComboPreferences(this); 847 CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal()); 848 mFocusManager = new FocusManager(mPreferences, 849 getString(R.string.pref_camera_focusmode_default)); 850 851 mCameraId = CameraSettings.readPreferredCameraId(mPreferences); 852 853 // Testing purpose. Launch a specific camera through the intent extras. 854 int intentCameraId = Util.getCameraFacingIntentExtras(this); 855 if (intentCameraId != -1) { 856 mCameraId = intentCameraId; 857 } 858 859 mPreferences.setLocalId(this, mCameraId); 860 CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); 861 862 mNumberOfCameras = CameraHolder.instance().getNumberOfCameras(); 863 mQuickCapture = getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false); 864 865 // we need to reset exposure for the preview 866 resetExposureCompensation(); 867 868 /* 869 * To reduce startup time, we start the preview in another thread. 870 * We make sure the preview is started at the end of onCreate. 871 */ 872 Thread startPreviewThread = new Thread(new Runnable() { 873 public void run() { 874 try { 875 mCameraDevice = Util.openCamera(Camera.this, mCameraId); 876 initializeCapabilities(); 877 startPreview(); 878 } catch (CameraHardwareException e) { 879 mOpenCameraFail = true; 880 } catch (CameraDisabledException e) { 881 mCameraDisabled = true; 882 } 883 } 884 }); 885 startPreviewThread.start(); 886 887 Util.enterLightsOutMode(getWindow()); 888 889 // don't set mSurfaceHolder here. We have it set ONLY within 890 // surfaceChanged / surfaceDestroyed, other parts of the code 891 // assume that when it is set, the surface is also set. 892 SurfaceView preview = (SurfaceView) findViewById(R.id.camera_preview); 893 SurfaceHolder holder = preview.getHolder(); 894 holder.addCallback(this); 895 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 896 897 if (mIsImageCaptureIntent) { 898 setupCaptureParams(); 899 } else { 900 mModePicker = (ModePicker) findViewById(R.id.mode_picker); 901 mModePicker.setVisibility(View.VISIBLE); 902 mModePicker.setOnModeChangeListener(this); 903 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 904 } 905 906 mZoomControl = (ZoomControl) findViewById(R.id.zoom_control); 907 mLocationManager = new LocationManager(this, this); 908 909 // Make sure preview is started. 910 try { 911 startPreviewThread.join(); 912 if (mOpenCameraFail) { 913 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 914 return; 915 } else if (mCameraDisabled) { 916 Util.showErrorAndFinish(this, R.string.camera_disabled); 917 return; 918 } 919 } catch (InterruptedException ex) { 920 // ignore 921 } 922 923 mBackCameraId = CameraHolder.instance().getBackCameraId(); 924 mFrontCameraId = CameraHolder.instance().getFrontCameraId(); 925 926 // Do this after starting preview because it depends on camera 927 // parameters. 928 initializeIndicatorControl(); 929 } 930 931 private void overrideCameraSettings(final String flashMode, 932 final String whiteBalance, final String focusMode) { 933 if (mIndicatorControlContainer != null) { 934 mIndicatorControlContainer.overrideSettings( 935 CameraSettings.KEY_FLASH_MODE, flashMode, 936 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 937 CameraSettings.KEY_FOCUS_MODE, focusMode); 938 } 939 } 940 941 private void updateSceneModeUI() { 942 // If scene mode is set, we cannot set flash mode, white balance, and 943 // focus mode, instead, we read it from driver 944 if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 945 overrideCameraSettings(mParameters.getFlashMode(), 946 mParameters.getWhiteBalance(), mParameters.getFocusMode()); 947 } else { 948 overrideCameraSettings(null, null, null); 949 } 950 } 951 952 private void loadCameraPreferences() { 953 CameraSettings settings = new CameraSettings(this, mInitialParams, 954 mCameraId, CameraHolder.instance().getCameraInfo()); 955 mPreferenceGroup = settings.getPreferenceGroup(R.xml.camera_preferences); 956 } 957 958 private void initializeIndicatorControl() { 959 // setting the indicator buttons. 960 mIndicatorControlContainer = 961 (IndicatorControlContainer) findViewById(R.id.indicator_control); 962 if (mIndicatorControlContainer == null) return; 963 loadCameraPreferences(); 964 final String[] SETTING_KEYS = { 965 CameraSettings.KEY_WHITE_BALANCE, 966 CameraSettings.KEY_SCENE_MODE}; 967 final String[] OTHER_SETTING_KEYS = { 968 CameraSettings.KEY_RECORD_LOCATION, 969 CameraSettings.KEY_FOCUS_MODE, 970 CameraSettings.KEY_EXPOSURE, 971 CameraSettings.KEY_PICTURE_SIZE}; 972 973 CameraPicker.setImageResourceId(R.drawable.ic_switch_photo_facing_holo_light); 974 mIndicatorControlContainer.initialize(this, mPreferenceGroup, 975 CameraSettings.KEY_FLASH_MODE, mParameters.isZoomSupported(), 976 SETTING_KEYS, OTHER_SETTING_KEYS); 977 mIndicatorControlContainer.setListener(this); 978 } 979 980 private boolean collapseCameraControls() { 981 if ((mIndicatorControlContainer != null) 982 && mIndicatorControlContainer.dismissSettingPopup()) { 983 return true; 984 } 985 return false; 986 } 987 988 private void enableCameraControls(boolean enable) { 989 if (mIndicatorControlContainer != null) { 990 mIndicatorControlContainer.setEnabled(enable); 991 } 992 if (mModePicker != null) mModePicker.setEnabled(enable); 993 if (mZoomControl != null) mZoomControl.setEnabled(enable); 994 } 995 996 public static int roundOrientation(int orientation) { 997 return ((orientation + 45) / 90 * 90) % 360; 998 } 999 1000 private class MyOrientationEventListener 1001 extends OrientationEventListener { 1002 public MyOrientationEventListener(Context context) { 1003 super(context); 1004 } 1005 1006 @Override 1007 public void onOrientationChanged(int orientation) { 1008 // We keep the last known orientation. So if the user first orient 1009 // the camera then point the camera to floor or sky, we still have 1010 // the correct orientation. 1011 if (orientation == ORIENTATION_UNKNOWN) return; 1012 mOrientation = roundOrientation(orientation); 1013 // When the screen is unlocked, display rotation may change. Always 1014 // calculate the up-to-date orientationCompensation. 1015 int orientationCompensation = mOrientation 1016 + Util.getDisplayRotation(Camera.this); 1017 if (mOrientationCompensation != orientationCompensation) { 1018 mOrientationCompensation = orientationCompensation; 1019 setOrientationIndicator(mOrientationCompensation); 1020 } 1021 1022 // Show the toast after getting the first orientation changed. 1023 if (mHandler.hasMessages(SHOW_TAP_TO_FOCUS_TOAST)) { 1024 mHandler.removeMessages(SHOW_TAP_TO_FOCUS_TOAST); 1025 showTapToFocusToast(); 1026 } 1027 } 1028 } 1029 1030 private void setOrientationIndicator(int degree) { 1031 if (mThumbnailView != null) mThumbnailView.setDegree(degree); 1032 if (mModePicker != null) mModePicker.setDegree(degree); 1033 if (mSharePopup != null) mSharePopup.setOrientation(degree); 1034 if (mIndicatorControlContainer != null) mIndicatorControlContainer.setDegree(degree); 1035 if (mZoomControl != null) mZoomControl.setDegree(degree); 1036 if (mFocusIndicator != null) mFocusIndicator.setOrientation(degree); 1037 if (mFaceView != null) mFaceView.setOrientation(degree); 1038 } 1039 1040 @Override 1041 public void onStop() { 1042 super.onStop(); 1043 if (mMediaProviderClient != null) { 1044 mMediaProviderClient.release(); 1045 mMediaProviderClient = null; 1046 } 1047 } 1048 1049 private void checkStorage() { 1050 mPicturesRemaining = Storage.getAvailableSpace(); 1051 if (mPicturesRemaining > 0) { 1052 mPicturesRemaining /= 1500000; 1053 } 1054 updateStorageHint(); 1055 } 1056 1057 @OnClickAttr 1058 public void onThumbnailClicked(View v) { 1059 if (isCameraIdle() && mThumbnail != null) { 1060 showSharePopup(); 1061 } 1062 } 1063 1064 @OnClickAttr 1065 public void onRetakeButtonClicked(View v) { 1066 hidePostCaptureAlert(); 1067 startPreview(); 1068 } 1069 1070 @OnClickAttr 1071 public void onDoneButtonClicked(View v) { 1072 doAttach(); 1073 } 1074 1075 @OnClickAttr 1076 public void onCancelButtonClicked(View v) { 1077 doCancel(); 1078 } 1079 1080 private void doAttach() { 1081 if (mPausing) { 1082 return; 1083 } 1084 1085 byte[] data = mJpegImageData; 1086 1087 if (mCropValue == null) { 1088 // First handle the no crop case -- just return the value. If the 1089 // caller specifies a "save uri" then write the data to it's 1090 // stream. Otherwise, pass back a scaled down version of the bitmap 1091 // directly in the extras. 1092 if (mSaveUri != null) { 1093 OutputStream outputStream = null; 1094 try { 1095 outputStream = mContentResolver.openOutputStream(mSaveUri); 1096 outputStream.write(data); 1097 outputStream.close(); 1098 1099 setResultEx(RESULT_OK); 1100 finish(); 1101 } catch (IOException ex) { 1102 // ignore exception 1103 } finally { 1104 Util.closeSilently(outputStream); 1105 } 1106 } else { 1107 int orientation = Exif.getOrientation(data); 1108 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1109 bitmap = Util.rotate(bitmap, orientation); 1110 setResultEx(RESULT_OK, 1111 new Intent("inline-data").putExtra("data", bitmap)); 1112 finish(); 1113 } 1114 } else { 1115 // Save the image to a temp file and invoke the cropper 1116 Uri tempUri = null; 1117 FileOutputStream tempStream = null; 1118 try { 1119 File path = getFileStreamPath(sTempCropFilename); 1120 path.delete(); 1121 tempStream = openFileOutput(sTempCropFilename, 0); 1122 tempStream.write(data); 1123 tempStream.close(); 1124 tempUri = Uri.fromFile(path); 1125 } catch (FileNotFoundException ex) { 1126 setResultEx(Activity.RESULT_CANCELED); 1127 finish(); 1128 return; 1129 } catch (IOException ex) { 1130 setResultEx(Activity.RESULT_CANCELED); 1131 finish(); 1132 return; 1133 } finally { 1134 Util.closeSilently(tempStream); 1135 } 1136 1137 Bundle newExtras = new Bundle(); 1138 if (mCropValue.equals("circle")) { 1139 newExtras.putString("circleCrop", "true"); 1140 } 1141 if (mSaveUri != null) { 1142 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1143 } else { 1144 newExtras.putBoolean("return-data", true); 1145 } 1146 1147 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1148 1149 cropIntent.setData(tempUri); 1150 cropIntent.putExtras(newExtras); 1151 1152 startActivityForResult(cropIntent, CROP_MSG); 1153 } 1154 } 1155 1156 private void doCancel() { 1157 setResultEx(RESULT_CANCELED, new Intent()); 1158 finish(); 1159 } 1160 1161 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1162 switch (button.getId()) { 1163 case R.id.shutter_button: 1164 doFocus(pressed); 1165 break; 1166 } 1167 } 1168 1169 public void onShutterButtonClick(ShutterButton button) { 1170 switch (button.getId()) { 1171 case R.id.shutter_button: 1172 doSnap(); 1173 break; 1174 } 1175 } 1176 1177 private OnScreenHint mStorageHint; 1178 1179 private void updateStorageHint() { 1180 String noStorageText = null; 1181 1182 if (mPicturesRemaining == Storage.UNAVAILABLE) { 1183 noStorageText = getString(R.string.no_storage); 1184 } else if (mPicturesRemaining == Storage.PREPARING) { 1185 noStorageText = getString(R.string.preparing_sd); 1186 } else if (mPicturesRemaining == Storage.UNKNOWN_SIZE) { 1187 noStorageText = getString(R.string.access_sd_fail); 1188 } else if (mPicturesRemaining < 1L) { 1189 noStorageText = getString(R.string.not_enough_space); 1190 } 1191 1192 if (noStorageText != null) { 1193 if (mStorageHint == null) { 1194 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1195 } else { 1196 mStorageHint.setText(noStorageText); 1197 } 1198 mStorageHint.show(); 1199 } else if (mStorageHint != null) { 1200 mStorageHint.cancel(); 1201 mStorageHint = null; 1202 } 1203 } 1204 1205 private void installIntentFilter() { 1206 // install an intent filter to receive SD card related events. 1207 IntentFilter intentFilter = 1208 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1209 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1210 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1211 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1212 intentFilter.addDataScheme("file"); 1213 registerReceiver(mReceiver, intentFilter); 1214 mDidRegister = true; 1215 } 1216 1217 private void initializeScreenBrightness() { 1218 Window win = getWindow(); 1219 // Overright the brightness settings if it is automatic 1220 int mode = Settings.System.getInt( 1221 getContentResolver(), 1222 Settings.System.SCREEN_BRIGHTNESS_MODE, 1223 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); 1224 if (mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC) { 1225 WindowManager.LayoutParams winParams = win.getAttributes(); 1226 winParams.screenBrightness = DEFAULT_CAMERA_BRIGHTNESS; 1227 win.setAttributes(winParams); 1228 } 1229 } 1230 1231 @Override 1232 protected void onResume() { 1233 super.onResume(); 1234 mPausing = false; 1235 if (mOpenCameraFail || mCameraDisabled) return; 1236 1237 mJpegPictureCallbackTime = 0; 1238 mZoomValue = 0; 1239 1240 // Start the preview if it is not started. 1241 if (mCameraState == PREVIEW_STOPPED) { 1242 try { 1243 mCameraDevice = Util.openCamera(this, mCameraId); 1244 initializeCapabilities(); 1245 resetExposureCompensation(); 1246 startPreview(); 1247 } catch(CameraHardwareException e) { 1248 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1249 return; 1250 } catch(CameraDisabledException e) { 1251 Util.showErrorAndFinish(this, R.string.camera_disabled); 1252 return; 1253 } 1254 } 1255 1256 if (mSurfaceHolder != null) { 1257 // If first time initialization is not finished, put it in the 1258 // message queue. 1259 if (!mFirstTimeInitialized) { 1260 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1261 } else { 1262 initializeSecondTime(); 1263 } 1264 } 1265 keepScreenOnAwhile(); 1266 1267 if (mCameraState == IDLE) { 1268 mOnResumeTime = SystemClock.uptimeMillis(); 1269 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 1270 } 1271 } 1272 1273 @Override 1274 protected void onPause() { 1275 mPausing = true; 1276 stopPreview(); 1277 // Close the camera now because other activities may need to use it. 1278 closeCamera(); 1279 resetScreenOn(); 1280 1281 // Clear UI. 1282 collapseCameraControls(); 1283 if (mSharePopup != null) mSharePopup.dismiss(); 1284 if (mFaceView != null) mFaceView.clear(); 1285 1286 if (mFirstTimeInitialized) { 1287 mOrientationListener.disable(); 1288 if (!mIsImageCaptureIntent) { 1289 if (mThumbnail != null) { 1290 mThumbnail.saveTo(new File(getFilesDir(), Thumbnail.LAST_THUMB_FILENAME)); 1291 } 1292 } 1293 hidePostCaptureAlert(); 1294 } 1295 1296 if (mDidRegister) { 1297 unregisterReceiver(mReceiver); 1298 mDidRegister = false; 1299 } 1300 mLocationManager.recordLocation(false); 1301 updateExposureOnScreenIndicator(0); 1302 1303 mFocusManager.releaseToneGenerator(); 1304 1305 if (mStorageHint != null) { 1306 mStorageHint.cancel(); 1307 mStorageHint = null; 1308 } 1309 1310 // If we are in an image capture intent and has taken 1311 // a picture, we just clear it in onPause. 1312 mJpegImageData = null; 1313 1314 // Remove the messages in the event queue. 1315 mHandler.removeMessages(RESTART_PREVIEW); 1316 mHandler.removeMessages(FIRST_TIME_INIT); 1317 mHandler.removeMessages(CHECK_DISPLAY_ROTATION); 1318 mFocusManager.removeMessages(); 1319 1320 super.onPause(); 1321 } 1322 1323 @Override 1324 protected void onActivityResult( 1325 int requestCode, int resultCode, Intent data) { 1326 switch (requestCode) { 1327 case CROP_MSG: { 1328 Intent intent = new Intent(); 1329 if (data != null) { 1330 Bundle extras = data.getExtras(); 1331 if (extras != null) { 1332 intent.putExtras(extras); 1333 } 1334 } 1335 setResultEx(resultCode, intent); 1336 finish(); 1337 1338 File path = getFileStreamPath(sTempCropFilename); 1339 path.delete(); 1340 1341 break; 1342 } 1343 } 1344 } 1345 1346 private boolean canTakePicture() { 1347 return isCameraIdle() && (mPicturesRemaining > 0); 1348 } 1349 1350 @Override 1351 public void autoFocus() { 1352 mFocusStartTime = System.currentTimeMillis(); 1353 mCameraDevice.autoFocus(mAutoFocusCallback); 1354 mCameraState = FOCUSING; 1355 enableCameraControls(false); 1356 } 1357 1358 @Override 1359 public void cancelAutoFocus() { 1360 mCameraDevice.cancelAutoFocus(); 1361 mCameraState = IDLE; 1362 enableCameraControls(true); 1363 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1364 } 1365 1366 // Preview area is touched. Handle touch focus. 1367 @Override 1368 public boolean onTouch(View v, MotionEvent e) { 1369 if (mPausing || !mFirstTimeInitialized || mCameraState == SNAPSHOT_IN_PROGRESS) { 1370 return false; 1371 } 1372 1373 // Do not trigger touch focus if popup window is opened. 1374 if (collapseCameraControls()) return false; 1375 1376 // Check if metering area or focus area is supported. 1377 if (!mFocusAreaSupported && !mMeteringAreaSupported) return false; 1378 1379 return mFocusManager.onTouch(e); 1380 } 1381 1382 @Override 1383 public void onBackPressed() { 1384 if (!isCameraIdle()) { 1385 // ignore backs while we're taking a picture 1386 return; 1387 } else if (!collapseCameraControls()) { 1388 super.onBackPressed(); 1389 } 1390 } 1391 1392 @Override 1393 public boolean onKeyDown(int keyCode, KeyEvent event) { 1394 switch (keyCode) { 1395 case KeyEvent.KEYCODE_FOCUS: 1396 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1397 doFocus(true); 1398 } 1399 return true; 1400 case KeyEvent.KEYCODE_CAMERA: 1401 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1402 doSnap(); 1403 } 1404 return true; 1405 case KeyEvent.KEYCODE_DPAD_CENTER: 1406 // If we get a dpad center event without any focused view, move 1407 // the focus to the shutter button and press it. 1408 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1409 // Start auto-focus immediately to reduce shutter lag. After 1410 // the shutter button gets the focus, doFocus() will be 1411 // called again but it is fine. 1412 if (collapseCameraControls()) return true; 1413 doFocus(true); 1414 if (mShutterButton.isInTouchMode()) { 1415 mShutterButton.requestFocusFromTouch(); 1416 } else { 1417 mShutterButton.requestFocus(); 1418 } 1419 mShutterButton.setPressed(true); 1420 } 1421 return true; 1422 } 1423 1424 return super.onKeyDown(keyCode, event); 1425 } 1426 1427 @Override 1428 public boolean onKeyUp(int keyCode, KeyEvent event) { 1429 switch (keyCode) { 1430 case KeyEvent.KEYCODE_FOCUS: 1431 if (mFirstTimeInitialized) { 1432 doFocus(false); 1433 } 1434 return true; 1435 } 1436 return super.onKeyUp(keyCode, event); 1437 } 1438 1439 private void doSnap() { 1440 if (mPausing || collapseCameraControls()) return; 1441 1442 // Do not take the picture if there is not enough storage. 1443 if (mPicturesRemaining <= 0) { 1444 Log.i(TAG, "Not enough space or storage not ready. remaining=" + mPicturesRemaining); 1445 return; 1446 } 1447 1448 Log.v(TAG, "doSnap: mCameraState=" + mCameraState); 1449 mFocusManager.doSnap(); 1450 } 1451 1452 private void doFocus(boolean pressed) { 1453 if (mPausing || collapseCameraControls()) return; 1454 1455 // Do not do focus if there is not enough storage. 1456 if (pressed && !canTakePicture()) return; 1457 1458 mFocusManager.doFocus(pressed); 1459 } 1460 1461 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1462 // Make sure we have a surface in the holder before proceeding. 1463 if (holder.getSurface() == null) { 1464 Log.d(TAG, "holder.getSurface() == null"); 1465 return; 1466 } 1467 1468 Log.v(TAG, "surfaceChanged. w=" + w + ". h=" + h); 1469 1470 // We need to save the holder for later use, even when the mCameraDevice 1471 // is null. This could happen if onResume() is invoked after this 1472 // function. 1473 mSurfaceHolder = holder; 1474 1475 // The mCameraDevice will be null if it fails to connect to the camera 1476 // hardware. In this case we will show a dialog and then finish the 1477 // activity, so it's OK to ignore it. 1478 if (mCameraDevice == null) return; 1479 1480 // Sometimes surfaceChanged is called after onPause or before onResume. 1481 // Ignore it. 1482 if (mPausing || isFinishing()) return; 1483 1484 // Set preview display if the surface is being created. Preview was 1485 // already started. Also restart the preview if display rotation has 1486 // changed. Sometimes this happens when the device is held in portrait 1487 // and camera app is opened. Rotation animation takes some time and 1488 // display rotation in onCreate may not be what we want. 1489 if (mCameraState != PREVIEW_STOPPED 1490 && (Util.getDisplayRotation(this) == mDisplayRotation) 1491 && holder.isCreating()) { 1492 // Set preview display if the surface is being created and preview 1493 // was already started. That means preview display was set to null 1494 // and we need to set it now. 1495 setPreviewDisplay(holder); 1496 } else { 1497 // 1. Restart the preview if the size of surface was changed. The 1498 // framework may not support changing preview display on the fly. 1499 // 2. Start the preview now if surface was destroyed and preview 1500 // stopped. 1501 startPreview(); 1502 } 1503 1504 // If first time initialization is not finished, send a message to do 1505 // it later. We want to finish surfaceChanged as soon as possible to let 1506 // user see preview first. 1507 if (!mFirstTimeInitialized) { 1508 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1509 } else { 1510 initializeSecondTime(); 1511 } 1512 } 1513 1514 public void surfaceCreated(SurfaceHolder holder) { 1515 } 1516 1517 public void surfaceDestroyed(SurfaceHolder holder) { 1518 stopPreview(); 1519 mSurfaceHolder = null; 1520 } 1521 1522 private void closeCamera() { 1523 if (mCameraDevice != null) { 1524 CameraHolder.instance().release(); 1525 mCameraDevice.setZoomChangeListener(null); 1526 mCameraDevice.setFaceDetectionListener(null); 1527 mCameraDevice = null; 1528 mCameraState = PREVIEW_STOPPED; 1529 mFocusManager.onCameraReleased(); 1530 } 1531 } 1532 1533 private void setPreviewDisplay(SurfaceHolder holder) { 1534 try { 1535 mCameraDevice.setPreviewDisplay(holder); 1536 } catch (Throwable ex) { 1537 closeCamera(); 1538 throw new RuntimeException("setPreviewDisplay failed", ex); 1539 } 1540 } 1541 1542 private void startPreview() { 1543 if (mPausing || isFinishing()) return; 1544 1545 mFocusManager.resetTouchFocus(); 1546 1547 mCameraDevice.setErrorCallback(mErrorCallback); 1548 1549 // If we're previewing already, stop the preview first (this will blank 1550 // the screen). 1551 if (mCameraState != PREVIEW_STOPPED) stopPreview(); 1552 1553 setPreviewDisplay(mSurfaceHolder); 1554 mDisplayRotation = Util.getDisplayRotation(this); 1555 mDisplayOrientation = Util.getDisplayOrientation(mDisplayRotation, mCameraId); 1556 mCameraDevice.setDisplayOrientation(mDisplayOrientation); 1557 if (mFaceView != null) { 1558 mFaceView.setDisplayOrientation(mDisplayOrientation); 1559 } 1560 setCameraParameters(UPDATE_PARAM_ALL); 1561 1562 try { 1563 Log.v(TAG, "startPreview"); 1564 mCameraDevice.startPreview(); 1565 } catch (Throwable ex) { 1566 closeCamera(); 1567 throw new RuntimeException("startPreview failed", ex); 1568 } 1569 1570 startFaceDetection(); 1571 mZoomState = ZOOM_STOPPED; 1572 mCameraState = IDLE; 1573 mFocusManager.onPreviewStarted(); 1574 } 1575 1576 private void stopPreview() { 1577 if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) { 1578 Log.v(TAG, "stopPreview"); 1579 mCameraDevice.stopPreview(); 1580 } 1581 mCameraState = PREVIEW_STOPPED; 1582 mFocusManager.onPreviewStopped(); 1583 } 1584 1585 private static boolean isSupported(String value, List<String> supported) { 1586 return supported == null ? false : supported.indexOf(value) >= 0; 1587 } 1588 1589 private void updateCameraParametersInitialize() { 1590 // Reset preview frame rate to the maximum because it may be lowered by 1591 // video camera application. 1592 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1593 if (frameRates != null) { 1594 Integer max = Collections.max(frameRates); 1595 mParameters.setPreviewFrameRate(max); 1596 } 1597 1598 mParameters.setRecordingHint(false); 1599 } 1600 1601 private void updateCameraParametersZoom() { 1602 // Set zoom. 1603 if (mParameters.isZoomSupported()) { 1604 mParameters.setZoom(mZoomValue); 1605 } 1606 } 1607 1608 private void updateCameraParametersPreference() { 1609 if (mFocusAreaSupported) { 1610 mParameters.setFocusAreas(mFocusManager.getTapArea()); 1611 } 1612 1613 if (mMeteringAreaSupported) { 1614 // Use the same area for focus and metering. 1615 mParameters.setMeteringAreas(mFocusManager.getTapArea()); 1616 } 1617 1618 // Set picture size. 1619 String pictureSize = mPreferences.getString( 1620 CameraSettings.KEY_PICTURE_SIZE, null); 1621 if (pictureSize == null) { 1622 CameraSettings.initialCameraPictureSize(this, mParameters); 1623 } else { 1624 List<Size> supported = mParameters.getSupportedPictureSizes(); 1625 CameraSettings.setCameraPictureSize( 1626 pictureSize, supported, mParameters); 1627 } 1628 1629 // Set the preview frame aspect ratio according to the picture size. 1630 Size size = mParameters.getPictureSize(); 1631 1632 mPreviewFrameLayout = (PreviewFrameLayout) findViewById(R.id.frame_layout); 1633 mPreviewFrameLayout.setAspectRatio((double) size.width / size.height); 1634 1635 // Set a preview size that is closest to the viewfinder height and has 1636 // the right aspect ratio. 1637 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1638 Size optimalSize = Util.getOptimalPreviewSize(this, 1639 sizes, (double) size.width / size.height); 1640 Size original = mParameters.getPreviewSize(); 1641 if (!original.equals(optimalSize)) { 1642 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1643 1644 // Zoom related settings will be changed for different preview 1645 // sizes, so set and read the parameters to get lastest values 1646 mCameraDevice.setParameters(mParameters); 1647 mParameters = mCameraDevice.getParameters(); 1648 } 1649 Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height); 1650 1651 // Since change scene mode may change supported values, 1652 // Set scene mode first, 1653 mSceneMode = mPreferences.getString( 1654 CameraSettings.KEY_SCENE_MODE, 1655 getString(R.string.pref_camera_scenemode_default)); 1656 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 1657 if (!mParameters.getSceneMode().equals(mSceneMode)) { 1658 mParameters.setSceneMode(mSceneMode); 1659 mCameraDevice.setParameters(mParameters); 1660 1661 // Setting scene mode will change the settings of flash mode, 1662 // white balance, and focus mode. Here we read back the 1663 // parameters, so we can know those settings. 1664 mParameters = mCameraDevice.getParameters(); 1665 } 1666 } else { 1667 mSceneMode = mParameters.getSceneMode(); 1668 if (mSceneMode == null) { 1669 mSceneMode = Parameters.SCENE_MODE_AUTO; 1670 } 1671 } 1672 1673 // Set JPEG quality. 1674 int jpegQuality = CameraProfile.getJpegEncodingQualityParameter(mCameraId, 1675 CameraProfile.QUALITY_HIGH); 1676 mParameters.setJpegQuality(jpegQuality); 1677 1678 // For the following settings, we need to check if the settings are 1679 // still supported by latest driver, if not, ignore the settings. 1680 1681 // Set exposure compensation 1682 int value = CameraSettings.readExposure(mPreferences); 1683 int max = mParameters.getMaxExposureCompensation(); 1684 int min = mParameters.getMinExposureCompensation(); 1685 if (value >= min && value <= max) { 1686 mParameters.setExposureCompensation(value); 1687 } else { 1688 Log.w(TAG, "invalid exposure range: " + value); 1689 } 1690 1691 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1692 // Set flash mode. 1693 String flashMode = mPreferences.getString( 1694 CameraSettings.KEY_FLASH_MODE, 1695 getString(R.string.pref_camera_flashmode_default)); 1696 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 1697 if (isSupported(flashMode, supportedFlash)) { 1698 mParameters.setFlashMode(flashMode); 1699 } else { 1700 flashMode = mParameters.getFlashMode(); 1701 if (flashMode == null) { 1702 flashMode = getString( 1703 R.string.pref_camera_flashmode_no_flash); 1704 } 1705 } 1706 1707 // Set white balance parameter. 1708 String whiteBalance = mPreferences.getString( 1709 CameraSettings.KEY_WHITE_BALANCE, 1710 getString(R.string.pref_camera_whitebalance_default)); 1711 if (isSupported(whiteBalance, 1712 mParameters.getSupportedWhiteBalance())) { 1713 mParameters.setWhiteBalance(whiteBalance); 1714 } else { 1715 whiteBalance = mParameters.getWhiteBalance(); 1716 if (whiteBalance == null) { 1717 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 1718 } 1719 } 1720 1721 // Set focus mode. 1722 mFocusManager.overrideFocusMode(null); 1723 mParameters.setFocusMode(mFocusManager.getFocusMode()); 1724 } else { 1725 mFocusManager.overrideFocusMode(mParameters.getFocusMode()); 1726 } 1727 } 1728 1729 // We separate the parameters into several subsets, so we can update only 1730 // the subsets actually need updating. The PREFERENCE set needs extra 1731 // locking because the preference can be changed from GLThread as well. 1732 private void setCameraParameters(int updateSet) { 1733 mParameters = mCameraDevice.getParameters(); 1734 1735 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 1736 updateCameraParametersInitialize(); 1737 } 1738 1739 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 1740 updateCameraParametersZoom(); 1741 } 1742 1743 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 1744 updateCameraParametersPreference(); 1745 } 1746 1747 mCameraDevice.setParameters(mParameters); 1748 } 1749 1750 // If the Camera is idle, update the parameters immediately, otherwise 1751 // accumulate them in mUpdateSet and update later. 1752 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 1753 mUpdateSet |= additionalUpdateSet; 1754 if (mCameraDevice == null) { 1755 // We will update all the parameters when we open the device, so 1756 // we don't need to do anything now. 1757 mUpdateSet = 0; 1758 return; 1759 } else if (isCameraIdle()) { 1760 setCameraParameters(mUpdateSet); 1761 updateSceneModeUI(); 1762 mUpdateSet = 0; 1763 } else { 1764 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 1765 mHandler.sendEmptyMessageDelayed( 1766 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 1767 } 1768 } 1769 } 1770 1771 private void gotoGallery() { 1772 MenuHelper.gotoCameraImageGallery(this); 1773 } 1774 1775 private boolean isCameraIdle() { 1776 return (mCameraState == IDLE) || (mFocusManager.isFocusCompleted()); 1777 } 1778 1779 private boolean isImageCaptureIntent() { 1780 String action = getIntent().getAction(); 1781 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 1782 } 1783 1784 private void setupCaptureParams() { 1785 Bundle myExtras = getIntent().getExtras(); 1786 if (myExtras != null) { 1787 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 1788 mCropValue = myExtras.getString("crop"); 1789 } 1790 } 1791 1792 private void showPostCaptureAlert() { 1793 if (mIsImageCaptureIntent) { 1794 mShutterButton.setVisibility(View.GONE); 1795 mIndicatorControlContainer.setVisibility(View.GONE); 1796 1797 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1798 for (int id : pickIds) { 1799 Util.fadeIn(findViewById(id)); 1800 } 1801 } 1802 } 1803 1804 private void hidePostCaptureAlert() { 1805 if (mIsImageCaptureIntent) { 1806 enableCameraControls(true); 1807 1808 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1809 for (int id : pickIds) { 1810 (findViewById(id)).setVisibility(View.GONE); 1811 } 1812 1813 Util.fadeIn(mShutterButton); 1814 Util.fadeIn(mIndicatorControlContainer); 1815 } 1816 } 1817 1818 @Override 1819 public boolean onPrepareOptionsMenu(Menu menu) { 1820 super.onPrepareOptionsMenu(menu); 1821 // Only show the menu when camera is idle. 1822 for (int i = 0; i < menu.size(); i++) { 1823 menu.getItem(i).setVisible(isCameraIdle()); 1824 } 1825 1826 return true; 1827 } 1828 1829 @Override 1830 public boolean onCreateOptionsMenu(Menu menu) { 1831 super.onCreateOptionsMenu(menu); 1832 1833 if (mIsImageCaptureIntent) { 1834 // No options menu for attach mode. 1835 return false; 1836 } else { 1837 addBaseMenuItems(menu); 1838 } 1839 return true; 1840 } 1841 1842 private void addBaseMenuItems(Menu menu) { 1843 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_VIDEO, new Runnable() { 1844 public void run() { 1845 switchToOtherMode(ModePicker.MODE_VIDEO); 1846 } 1847 }); 1848 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_PANORAMA, new Runnable() { 1849 public void run() { 1850 switchToOtherMode(ModePicker.MODE_PANORAMA); 1851 } 1852 }); 1853 MenuItem gallery = menu.add(R.string.camera_gallery_photos_text) 1854 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1855 public boolean onMenuItemClick(MenuItem item) { 1856 gotoGallery(); 1857 return true; 1858 } 1859 }); 1860 gallery.setIcon(android.R.drawable.ic_menu_gallery); 1861 mGalleryItems.add(gallery); 1862 1863 if (mNumberOfCameras > 1) { 1864 menu.add(R.string.switch_camera_id) 1865 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1866 public boolean onMenuItemClick(MenuItem item) { 1867 CameraSettings.writePreferredCameraId(mPreferences, 1868 ((mCameraId == mFrontCameraId) 1869 ? mBackCameraId : mFrontCameraId)); 1870 onSharedPreferenceChanged(); 1871 return true; 1872 } 1873 }).setIcon(android.R.drawable.ic_menu_camera); 1874 } 1875 } 1876 1877 private boolean switchToOtherMode(int mode) { 1878 if (isFinishing() || !isCameraIdle()) return false; 1879 MenuHelper.gotoMode(mode, Camera.this); 1880 mHandler.removeMessages(FIRST_TIME_INIT); 1881 finish(); 1882 return true; 1883 } 1884 1885 public boolean onModeChanged(int mode) { 1886 if (mode != ModePicker.MODE_CAMERA) { 1887 return switchToOtherMode(mode); 1888 } else { 1889 return true; 1890 } 1891 } 1892 1893 public void onSharedPreferenceChanged() { 1894 // ignore the events after "onPause()" 1895 if (mPausing) return; 1896 1897 boolean recordLocation = RecordLocationPreference.get( 1898 mPreferences, getContentResolver()); 1899 mLocationManager.recordLocation(recordLocation); 1900 1901 int cameraId = CameraSettings.readPreferredCameraId(mPreferences); 1902 if (mCameraId != cameraId) { 1903 // Restart the activity to have a crossfade animation. 1904 // TODO: Use SurfaceTexture to implement a better and faster 1905 // animation. 1906 if (mIsImageCaptureIntent) { 1907 // If the intent is camera capture, stay in camera capture mode. 1908 MenuHelper.gotoCameraMode(this, getIntent()); 1909 } else { 1910 MenuHelper.gotoCameraMode(this); 1911 } 1912 1913 finish(); 1914 } else { 1915 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 1916 } 1917 1918 int exposureValue = CameraSettings.readExposure(mPreferences); 1919 updateExposureOnScreenIndicator(exposureValue); 1920 } 1921 1922 @Override 1923 public void onUserInteraction() { 1924 super.onUserInteraction(); 1925 keepScreenOnAwhile(); 1926 } 1927 1928 private void resetScreenOn() { 1929 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 1930 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1931 } 1932 1933 private void keepScreenOnAwhile() { 1934 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 1935 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1936 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 1937 } 1938 1939 public void onRestorePreferencesClicked() { 1940 if (mPausing) return; 1941 Runnable runnable = new Runnable() { 1942 public void run() { 1943 restorePreferences(); 1944 } 1945 }; 1946 MenuHelper.confirmAction(this, 1947 getString(R.string.confirm_restore_title), 1948 getString(R.string.confirm_restore_message), 1949 runnable); 1950 } 1951 1952 private void restorePreferences() { 1953 // Reset the zoom. Zoom value is not stored in preference. 1954 if (mParameters.isZoomSupported()) { 1955 mZoomValue = 0; 1956 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 1957 mZoomControl.setZoomIndex(0); 1958 } 1959 if (mIndicatorControlContainer != null) { 1960 mIndicatorControlContainer.dismissSettingPopup(); 1961 CameraSettings.restorePreferences(Camera.this, mPreferences, 1962 mParameters); 1963 mIndicatorControlContainer.reloadPreferences(); 1964 onSharedPreferenceChanged(); 1965 } 1966 } 1967 1968 public void onOverriddenPreferencesClicked() { 1969 if (mPausing) return; 1970 if (mNotSelectableToast == null) { 1971 String str = getResources().getString(R.string.not_selectable_in_scene_mode); 1972 mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT); 1973 } 1974 mNotSelectableToast.show(); 1975 } 1976 1977 private void showSharePopup() { 1978 Uri uri = mThumbnail.getUri(); 1979 if (mSharePopup == null || !uri.equals(mSharePopup.getUri())) { 1980 mSharePopup = new SharePopup(this, uri, mThumbnail.getBitmap(), 1981 mOrientationCompensation, mPreviewFrameLayout); 1982 } 1983 mSharePopup.showAtLocation(mThumbnailView, Gravity.NO_GRAVITY, 0, 0); 1984 } 1985 1986 @Override 1987 public void onFaceDetection(Face[] faces, android.hardware.Camera camera) { 1988 mFaceView.setFaces(faces); 1989 } 1990 1991 private void showTapToFocusToast() { 1992 // Show the toast. 1993 RotateLayout v = (RotateLayout) findViewById(R.id.tap_to_focus_prompt); 1994 v.setOrientation(mOrientationCompensation); 1995 v.startAnimation(AnimationUtils.loadAnimation(this, R.anim.on_screen_hint_enter)); 1996 v.setVisibility(View.VISIBLE); 1997 mHandler.sendEmptyMessageDelayed(DISMISS_TAP_TO_FOCUS_TOAST, 5000); 1998 // Clear the preference. 1999 Editor editor = mPreferences.edit(); 2000 editor.putBoolean(CameraSettings.KEY_TAP_TO_FOCUS_PROMPT_SHOWN, false); 2001 editor.apply(); 2002 } 2003 2004 private void initializeCapabilities() { 2005 mInitialParams = mCameraDevice.getParameters(); 2006 mFocusManager.initializeParameters(mInitialParams); 2007 mFocusAreaSupported = (mInitialParams.getMaxNumFocusAreas() > 0 2008 && isSupported(Parameters.FOCUS_MODE_AUTO, 2009 mInitialParams.getSupportedFocusModes())); 2010 mMeteringAreaSupported = (mInitialParams.getMaxNumMeteringAreas() > 0); 2011 } 2012} 2013