Camera.java revision 94ca8baae7e6e3885d895c095890eabf30d922e2
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.Rotatable; 23import com.android.camera.ui.RotateImageView; 24import com.android.camera.ui.RotateLayout; 25import com.android.camera.ui.SharePopup; 26import com.android.camera.ui.ZoomControl; 27 28import android.app.Activity; 29import android.content.BroadcastReceiver; 30import android.content.ContentProviderClient; 31import android.content.ContentResolver; 32import android.content.Context; 33import android.content.Intent; 34import android.content.IntentFilter; 35import android.content.SharedPreferences.Editor; 36import android.graphics.Bitmap; 37import android.hardware.Camera.CameraInfo; 38import android.hardware.Camera.Face; 39import android.hardware.Camera.FaceDetectionListener; 40import android.hardware.Camera.Parameters; 41import android.hardware.Camera.PictureCallback; 42import android.hardware.Camera.Size; 43import android.location.Location; 44import android.media.CameraProfile; 45import android.net.Uri; 46import android.os.Bundle; 47import android.os.Handler; 48import android.os.Looper; 49import android.os.Message; 50import android.os.MessageQueue; 51import android.os.SystemClock; 52import android.provider.MediaStore; 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.WindowManager; 66import android.view.animation.AnimationUtils; 67import android.widget.TextView; 68import android.widget.Toast; 69 70import java.io.File; 71import java.io.FileNotFoundException; 72import java.io.FileOutputStream; 73import java.io.IOException; 74import java.io.OutputStream; 75import java.util.ArrayList; 76import java.util.Collections; 77import java.util.Formatter; 78import java.util.List; 79import java.util.concurrent.atomic.AtomicReference; 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 private static final int UPDATE_THUMBNAIL = 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 private static final int SCREEN_DELAY = 2 * 60 * 1000; 110 111 private static final int ZOOM_STOPPED = 0; 112 private static final int ZOOM_START = 1; 113 private static final int ZOOM_STOPPING = 2; 114 115 private int mZoomState = ZOOM_STOPPED; 116 private boolean mSmoothZoomSupported = false; 117 private int mZoomValue; // The current zoom value. 118 private int mZoomMax; 119 private int mTargetZoomValue; 120 private ZoomControl mZoomControl; 121 122 private Parameters mParameters; 123 private Parameters mInitialParams; 124 private boolean mFocusAreaSupported; 125 private boolean mMeteringAreaSupported; 126 127 private MyOrientationEventListener mOrientationListener; 128 // The degrees of the device rotated clockwise from its natural orientation. 129 private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 130 // The orientation compensation for icons and thumbnails. Ex: if the value 131 // is 90, the UI components should be rotated 90 degrees counter-clockwise. 132 private int mOrientationCompensation = 0; 133 private ComboPreferences mPreferences; 134 135 private static final String sTempCropFilename = "crop-temp"; 136 137 private android.hardware.Camera mCameraDevice; 138 private ContentProviderClient mMediaProviderClient; 139 private SurfaceHolder mSurfaceHolder = null; 140 private ShutterButton mShutterButton; 141 private GestureDetector mPopupGestureDetector; 142 private boolean mOpenCameraFail = false; 143 private boolean mCameraDisabled = false; 144 145 private View mPreviewPanel; // The container of PreviewFrameLayout. 146 private PreviewFrameLayout mPreviewFrameLayout; 147 private View mPreviewFrame; // Preview frame area. 148 149 // A popup window that contains a bigger thumbnail and a list of apps to share. 150 private SharePopup mSharePopup; 151 // The bitmap of the last captured picture thumbnail and the URI of the 152 // original picture. 153 private Thumbnail mThumbnail; 154 // An imageview showing showing the last captured picture thumbnail. 155 private RotateImageView mThumbnailView; 156 private ModePicker mModePicker; 157 private FaceView mFaceView; 158 private RotateLayout mFocusIndicator; 159 private Rotatable mReviewCancelButton; 160 private Rotatable mReviewDoneButton; 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 // We put the work of saving images and generating thumbnails to the thread 172 // in ImageSaver. 173 private ImageSaver mImageSaver; 174 175 private final StringBuilder mBuilder = new StringBuilder(); 176 private final Formatter mFormatter = new Formatter(mBuilder); 177 private final Object[] mFormatterArgs = new Object[1]; 178 179 /** 180 * An unpublished intent flag requesting to return as soon as capturing 181 * is completed. 182 * 183 * TODO: consider publishing by moving into MediaStore. 184 */ 185 private final static String EXTRA_QUICK_CAPTURE = 186 "android.intent.extra.quickCapture"; 187 188 // The display rotation in degrees. This is only valid when mCameraState is 189 // not PREVIEW_STOPPED. 190 private int mDisplayRotation; 191 // The value for android.hardware.Camera.setDisplayOrientation. 192 private int mDisplayOrientation; 193 private boolean mPausing; 194 private boolean mFirstTimeInitialized; 195 private boolean mIsImageCaptureIntent; 196 197 private static final int PREVIEW_STOPPED = 0; 198 private static final int IDLE = 1; // preview is active 199 // Focus is in progress. The exact focus state is in Focus.java. 200 private static final int FOCUSING = 2; 201 private static final int SNAPSHOT_IN_PROGRESS = 3; 202 private int mCameraState = PREVIEW_STOPPED; 203 204 private ContentResolver mContentResolver; 205 private boolean mDidRegister = false; 206 207 private LocationManager mLocationManager; 208 209 private final ShutterCallback mShutterCallback = new ShutterCallback(); 210 private final PostViewPictureCallback mPostViewPictureCallback = 211 new PostViewPictureCallback(); 212 private final RawPictureCallback mRawPictureCallback = 213 new RawPictureCallback(); 214 private final AutoFocusCallback mAutoFocusCallback = 215 new AutoFocusCallback(); 216 private final ZoomListener mZoomListener = new ZoomListener(); 217 private final CameraErrorCallback mErrorCallback = new CameraErrorCallback(); 218 219 private long mFocusStartTime; 220 private long mCaptureStartTime; 221 private long mShutterCallbackTime; 222 private long mPostViewPictureCallbackTime; 223 private long mRawPictureCallbackTime; 224 private long mJpegPictureCallbackTime; 225 private long mOnResumeTime; 226 private long mPicturesRemaining; 227 private byte[] mJpegImageData; 228 229 // These latency time are for the CameraLatency test. 230 public long mAutoFocusTime; 231 public long mShutterLag; 232 public long mShutterToPictureDisplayedTime; 233 public long mPictureDisplayedToJpegCallbackTime; 234 public long mJpegCallbackFinishTime; 235 236 // This handles everything about focus. 237 private FocusManager mFocusManager; 238 private String mSceneMode; 239 private Toast mNotSelectableToast; 240 private Toast mNoShareToast; 241 242 private final Handler mHandler = new MainHandler(); 243 private IndicatorControlContainer mIndicatorControlContainer; 244 private PreferenceGroup mPreferenceGroup; 245 246 // multiple cameras support 247 private int mNumberOfCameras; 248 private int mCameraId; 249 private int mFrontCameraId; 250 private int mBackCameraId; 251 252 private boolean mQuickCapture; 253 254 /** 255 * This Handler is used to post message back onto the main thread of the 256 * application 257 */ 258 private class MainHandler extends Handler { 259 @Override 260 public void handleMessage(Message msg) { 261 switch (msg.what) { 262 case CLEAR_SCREEN_DELAY: { 263 getWindow().clearFlags( 264 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 265 break; 266 } 267 268 case FIRST_TIME_INIT: { 269 initializeFirstTime(); 270 break; 271 } 272 273 case SET_CAMERA_PARAMETERS_WHEN_IDLE: { 274 setCameraParametersWhenIdle(0); 275 break; 276 } 277 278 case CHECK_DISPLAY_ROTATION: { 279 // Restart the preview if display rotation has changed. 280 // Sometimes this happens when the device is held upside 281 // down and camera app is opened. Rotation animation will 282 // take some time and the rotation value we have got may be 283 // wrong. Framework does not have a callback for this now. 284 if (Util.getDisplayRotation(Camera.this) != mDisplayRotation 285 && isCameraIdle()) { 286 startPreview(); 287 } 288 if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) { 289 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 290 } 291 break; 292 } 293 294 case SHOW_TAP_TO_FOCUS_TOAST: { 295 showTapToFocusToast(); 296 break; 297 } 298 299 case DISMISS_TAP_TO_FOCUS_TOAST: { 300 View v = findViewById(R.id.tap_to_focus_prompt); 301 v.setVisibility(View.GONE); 302 v.setAnimation(AnimationUtils.loadAnimation(Camera.this, 303 R.anim.on_screen_hint_exit)); 304 break; 305 } 306 307 case UPDATE_THUMBNAIL: { 308 mImageSaver.updateThumbnail(); 309 break; 310 } 311 } 312 } 313 } 314 315 private void resetExposureCompensation() { 316 String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, 317 CameraSettings.EXPOSURE_DEFAULT_VALUE); 318 if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { 319 Editor editor = mPreferences.edit(); 320 editor.putString(CameraSettings.KEY_EXPOSURE, "0"); 321 editor.apply(); 322 if (mIndicatorControlContainer != null) { 323 mIndicatorControlContainer.reloadPreferences(); 324 } 325 } 326 } 327 328 private void keepMediaProviderInstance() { 329 // We want to keep a reference to MediaProvider in camera's lifecycle. 330 // TODO: Utilize mMediaProviderClient instance to replace 331 // ContentResolver calls. 332 if (mMediaProviderClient == null) { 333 mMediaProviderClient = getContentResolver() 334 .acquireContentProviderClient(MediaStore.AUTHORITY); 335 } 336 } 337 338 // Snapshots can only be taken after this is called. It should be called 339 // once only. We could have done these things in onCreate() but we want to 340 // make preview screen appear as soon as possible. 341 private void initializeFirstTime() { 342 if (mFirstTimeInitialized) return; 343 344 // Create orientation listenter. This should be done first because it 345 // takes some time to get first orientation. 346 mOrientationListener = new MyOrientationEventListener(Camera.this); 347 mOrientationListener.enable(); 348 349 // Initialize location sevice. 350 boolean recordLocation = RecordLocationPreference.get( 351 mPreferences, getContentResolver()); 352 initOnScreenIndicator(); 353 mLocationManager.recordLocation(recordLocation); 354 355 keepMediaProviderInstance(); 356 checkStorage(); 357 358 // Initialize last picture button. 359 mContentResolver = getContentResolver(); 360 if (!mIsImageCaptureIntent) { // no thumbnail in image capture intent 361 initThumbnailButton(); 362 } 363 364 // Initialize shutter button. 365 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 366 mShutterButton.setOnShutterButtonListener(this); 367 mShutterButton.setVisibility(View.VISIBLE); 368 369 // Initialize focus UI. 370 mPreviewFrame = findViewById(R.id.camera_preview); 371 mPreviewFrame.setOnTouchListener(this); 372 mFocusIndicator = (RotateLayout) findViewById(R.id.focus_indicator_rotate_layout); 373 mFocusManager.initialize(mFocusIndicator, mPreviewFrame, mFaceView, this); 374 mFocusManager.initializeSoundPlayer(getResources().openRawResourceFd(R.raw.camera_focus)); 375 mImageSaver = new ImageSaver(); 376 Util.initializeScreenBrightness(getWindow(), getContentResolver()); 377 installIntentFilter(); 378 initializeZoom(); 379 // Show the tap to focus toast if this is the first start. 380 if (mFocusAreaSupported && 381 mPreferences.getBoolean(CameraSettings.KEY_TAP_TO_FOCUS_PROMPT_SHOWN, true)) { 382 // Delay the toast for one second to wait for orientation. 383 mHandler.sendEmptyMessageDelayed(SHOW_TAP_TO_FOCUS_TOAST, 1000); 384 } 385 386 mFirstTimeInitialized = true; 387 addIdleHandler(); 388 } 389 390 private void addIdleHandler() { 391 MessageQueue queue = Looper.myQueue(); 392 queue.addIdleHandler(new MessageQueue.IdleHandler() { 393 public boolean queueIdle() { 394 Storage.ensureOSXCompatible(); 395 return false; 396 } 397 }); 398 } 399 400 private void initThumbnailButton() { 401 // Load the thumbnail from the disk. 402 mThumbnail = Thumbnail.loadFrom(new File(getFilesDir(), Thumbnail.LAST_THUMB_FILENAME)); 403 updateThumbnailButton(); 404 } 405 406 private void updateThumbnailButton() { 407 // Update last image if URI is invalid and the storage is ready. 408 if ((mThumbnail == null || !Util.isUriValid(mThumbnail.getUri(), mContentResolver)) 409 && mPicturesRemaining >= 0) { 410 mThumbnail = Thumbnail.getLastThumbnail(mContentResolver); 411 } 412 if (mThumbnail != null) { 413 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 414 } else { 415 mThumbnailView.setBitmap(null); 416 } 417 } 418 419 // If the activity is paused and resumed, this method will be called in 420 // onResume. 421 private void initializeSecondTime() { 422 // Start orientation listener as soon as possible because it takes 423 // some time to get first orientation. 424 mOrientationListener.enable(); 425 426 // Start location update if needed. 427 boolean recordLocation = RecordLocationPreference.get( 428 mPreferences, getContentResolver()); 429 mLocationManager.recordLocation(recordLocation); 430 431 installIntentFilter(); 432 mFocusManager.initializeSoundPlayer(getResources().openRawResourceFd(R.raw.camera_focus)); 433 mImageSaver = new ImageSaver(); 434 initializeZoom(); 435 keepMediaProviderInstance(); 436 checkStorage(); 437 hidePostCaptureAlert(); 438 439 if (!mIsImageCaptureIntent) { 440 updateThumbnailButton(); 441 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 442 } 443 } 444 445 private class ZoomChangeListener implements ZoomControl.OnZoomChangedListener { 446 // only for immediate zoom 447 @Override 448 public void onZoomValueChanged(int index) { 449 Camera.this.onZoomValueChanged(index); 450 } 451 452 // only for smooth zoom 453 @Override 454 public void onZoomStateChanged(int state) { 455 if (mPausing) return; 456 457 Log.v(TAG, "zoom picker state=" + state); 458 if (state == ZoomControl.ZOOM_IN) { 459 Camera.this.onZoomValueChanged(mZoomMax); 460 } else if (state == ZoomControl.ZOOM_OUT) { 461 Camera.this.onZoomValueChanged(0); 462 } else { 463 mTargetZoomValue = -1; 464 if (mZoomState == ZOOM_START) { 465 mZoomState = ZOOM_STOPPING; 466 mCameraDevice.stopSmoothZoom(); 467 } 468 } 469 } 470 } 471 472 private void initializeZoom() { 473 // Get the parameter to make sure we have the up-to-date zoom value. 474 mParameters = mCameraDevice.getParameters(); 475 if (!mParameters.isZoomSupported()) return; 476 mZoomMax = mParameters.getMaxZoom(); 477 // Currently we use immediate zoom for fast zooming to get better UX and 478 // there is no plan to take advantage of the smooth zoom. 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 startPreview(); 694 } 695 696 if (!mIsImageCaptureIntent) { 697 Size s = mParameters.getPictureSize(); 698 mImageSaver.addImage(jpegData, mLocation, s.width, s.height); 699 } else { 700 mJpegImageData = jpegData; 701 if (!mQuickCapture) { 702 showPostCaptureAlert(); 703 } else { 704 doAttach(); 705 } 706 } 707 708 // Check this in advance of each shot so we don't add to shutter 709 // latency. It's true that someone else could write to the SD card in 710 // the mean time and fill it, but that could have happened between the 711 // shutter press and saving the JPEG too. 712 checkStorage(); 713 714 long now = System.currentTimeMillis(); 715 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 716 Log.v(TAG, "mJpegCallbackFinishTime = " 717 + mJpegCallbackFinishTime + "ms"); 718 mJpegPictureCallbackTime = 0; 719 } 720 } 721 722 private final class AutoFocusCallback 723 implements android.hardware.Camera.AutoFocusCallback { 724 public void onAutoFocus( 725 boolean focused, android.hardware.Camera camera) { 726 if (mPausing) return; 727 728 mAutoFocusTime = System.currentTimeMillis() - mFocusStartTime; 729 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 730 mFocusManager.onAutoFocus(focused); 731 // If focus completes and the snapshot is not started, enable the 732 // controls. 733 if (mFocusManager.isFocusCompleted()) { 734 enableCameraControls(true); 735 } 736 } 737 } 738 739 private final class ZoomListener 740 implements android.hardware.Camera.OnZoomChangeListener { 741 @Override 742 public void onZoomChange( 743 int value, boolean stopped, android.hardware.Camera camera) { 744 Log.v(TAG, "Zoom changed: value=" + value + ". stopped=" + stopped); 745 mZoomValue = value; 746 747 // Update the UI when we get zoom value. 748 mZoomControl.setZoomIndex(value); 749 750 // Keep mParameters up to date. We do not getParameter again in 751 // takePicture. If we do not do this, wrong zoom value will be set. 752 mParameters.setZoom(value); 753 754 if (stopped && mZoomState != ZOOM_STOPPED) { 755 if (mTargetZoomValue != -1 && value != mTargetZoomValue) { 756 mCameraDevice.startSmoothZoom(mTargetZoomValue); 757 mZoomState = ZOOM_START; 758 } else { 759 mZoomState = ZOOM_STOPPED; 760 } 761 } 762 } 763 } 764 765 private static class ImageInfo { 766 byte[] data; 767 Location loc; 768 int width, height; 769 long dateTaken; 770 int previewWidth; 771 } 772 773 private class ImageSaver extends Thread { 774 private ArrayList<ImageInfo> mQueue; 775 private AtomicReference<Thumbnail> mPendingThumbnail; 776 private boolean mStop; 777 778 // Runs in main thread 779 public ImageSaver() { 780 mQueue = new ArrayList<ImageInfo>(); 781 mPendingThumbnail = new AtomicReference<Thumbnail>(); 782 start(); 783 } 784 785 // Runs in main thread 786 public void addImage(final byte[] data, Location loc, int width, 787 int height) { 788 ImageInfo i = new ImageInfo(); 789 i.data = data; 790 i.loc = (loc == null) ? null : new Location(loc); // make a copy 791 i.width = width; 792 i.height = height; 793 i.dateTaken = System.currentTimeMillis(); 794 i.previewWidth = mPreviewFrameLayout.getWidth(); 795 synchronized (this) { 796 mQueue.add(i); 797 notifyAll(); 798 } 799 } 800 801 // Runs in keeper thread 802 @Override 803 public void run() { 804 while (true) { 805 ImageInfo i; 806 synchronized (this) { 807 if (mQueue.isEmpty()) { 808 notifyAll(); // for waitDone 809 // Note that we can stop only after the queue is empty. 810 if (mStop) break; 811 try { 812 wait(); 813 } catch (InterruptedException ex) { 814 // ignore. 815 } 816 continue; 817 } 818 i = mQueue.get(0); 819 } 820 keepImage(i.data, i.loc, i.width, i.height, i.dateTaken, 821 i.previewWidth); 822 synchronized(this) { 823 mQueue.remove(0); 824 } 825 } 826 } 827 828 // Runs in main thread 829 public void waitDone() { 830 synchronized (this) { 831 while (!mQueue.isEmpty()) { 832 try { 833 wait(); 834 } catch (InterruptedException ex) { 835 // ignore. 836 } 837 } 838 } 839 updateThumbnail(); 840 } 841 842 // Runs in main thread 843 public void finish() { 844 waitDone(); 845 synchronized (this) { 846 mStop = true; 847 notifyAll(); 848 } 849 try { 850 join(); 851 } catch (InterruptedException ex) { 852 // ignore. 853 } 854 } 855 856 // Runs in main thread 857 public void updateThumbnail() { 858 mHandler.removeMessages(UPDATE_THUMBNAIL); 859 Thumbnail t = mPendingThumbnail.getAndSet(null); 860 if (t != null) { 861 mThumbnail = t; 862 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 863 } 864 // Share popup may still have the reference to the old thumbnail. Clear it. 865 mSharePopup = null; 866 } 867 868 // Runs in keeper thread 869 private void keepImage(final byte[] data, Location loc, int width, 870 int height, long dateTaken, int previewWidth) { 871 String title = Util.createJpegName(dateTaken); 872 int orientation = Exif.getOrientation(data); 873 Uri uri = Storage.addImage(mContentResolver, title, dateTaken, 874 loc, orientation, data, width, height); 875 boolean needThumbnail; 876 if (uri != null) { 877 synchronized (this) { 878 needThumbnail = (mQueue.size() == 1); 879 } 880 if (needThumbnail) { 881 // Create a thumbnail whose width is equal or bigger than 882 // that of the preview. 883 int ratio = (int) Math.ceil((double) width / previewWidth); 884 int inSampleSize = Integer.highestOneBit(ratio); 885 mPendingThumbnail.set(Thumbnail.createThumbnail( 886 data, orientation, inSampleSize, uri)); 887 mHandler.sendEmptyMessage(UPDATE_THUMBNAIL); 888 } 889 Util.broadcastNewPicture(Camera.this, uri); 890 } 891 } 892 } 893 894 @Override 895 public boolean capture() { 896 // If we are already in the middle of taking a snapshot then ignore. 897 if (mCameraState == SNAPSHOT_IN_PROGRESS || mCameraDevice == null) { 898 return false; 899 } 900 mCaptureStartTime = System.currentTimeMillis(); 901 mPostViewPictureCallbackTime = 0; 902 enableCameraControls(false); 903 mJpegImageData = null; 904 905 // Set rotation and gps data. 906 Util.setRotationParameter(mParameters, mCameraId, mOrientation); 907 Location loc = mLocationManager.getCurrentLocation(); 908 Util.setGpsParameters(mParameters, loc); 909 mCameraDevice.setParameters(mParameters); 910 911 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 912 mPostViewPictureCallback, new JpegPictureCallback(loc)); 913 mCameraState = SNAPSHOT_IN_PROGRESS; 914 return true; 915 } 916 917 @Override 918 public void setFocusParameters() { 919 setCameraParameters(UPDATE_PARAM_PREFERENCE); 920 } 921 922 private boolean saveDataToFile(String filePath, byte[] data) { 923 FileOutputStream f = null; 924 try { 925 f = new FileOutputStream(filePath); 926 f.write(data); 927 } catch (IOException e) { 928 return false; 929 } finally { 930 Util.closeSilently(f); 931 } 932 return true; 933 } 934 935 @Override 936 public void onCreate(Bundle icicle) { 937 super.onCreate(icicle); 938 939 mIsImageCaptureIntent = isImageCaptureIntent(); 940 setContentView(R.layout.camera); 941 if (mIsImageCaptureIntent) { 942 mReviewDoneButton = (Rotatable) findViewById(R.id.btn_done); 943 mReviewCancelButton = (Rotatable) findViewById(R.id.btn_cancel); 944 findViewById(R.id.btn_cancel).setVisibility(View.VISIBLE); 945 } else { 946 mThumbnailView = (RotateImageView) findViewById(R.id.thumbnail); 947 mThumbnailView.setVisibility(View.VISIBLE); 948 } 949 950 mPreferences = new ComboPreferences(this); 951 CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal()); 952 mFocusManager = new FocusManager(mPreferences, 953 getString(R.string.pref_camera_focusmode_default)); 954 955 mCameraId = CameraSettings.readPreferredCameraId(mPreferences); 956 957 // Testing purpose. Launch a specific camera through the intent extras. 958 int intentCameraId = Util.getCameraFacingIntentExtras(this); 959 if (intentCameraId != -1) { 960 mCameraId = intentCameraId; 961 } 962 963 mPreferences.setLocalId(this, mCameraId); 964 CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); 965 966 mNumberOfCameras = CameraHolder.instance().getNumberOfCameras(); 967 mQuickCapture = getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false); 968 969 // we need to reset exposure for the preview 970 resetExposureCompensation(); 971 972 /* 973 * To reduce startup time, we start the preview in another thread. 974 * We make sure the preview is started at the end of onCreate. 975 */ 976 Thread startPreviewThread = new Thread(new Runnable() { 977 public void run() { 978 try { 979 mCameraDevice = Util.openCamera(Camera.this, mCameraId); 980 initializeCapabilities(); 981 startPreview(); 982 } catch (CameraHardwareException e) { 983 mOpenCameraFail = true; 984 } catch (CameraDisabledException e) { 985 mCameraDisabled = true; 986 } 987 } 988 }); 989 startPreviewThread.start(); 990 991 Util.enterLightsOutMode(getWindow()); 992 993 // don't set mSurfaceHolder here. We have it set ONLY within 994 // surfaceChanged / surfaceDestroyed, other parts of the code 995 // assume that when it is set, the surface is also set. 996 SurfaceView preview = (SurfaceView) findViewById(R.id.camera_preview); 997 SurfaceHolder holder = preview.getHolder(); 998 holder.addCallback(this); 999 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 1000 1001 if (mIsImageCaptureIntent) { 1002 setupCaptureParams(); 1003 } else { 1004 mModePicker = (ModePicker) findViewById(R.id.mode_picker); 1005 mModePicker.setVisibility(View.VISIBLE); 1006 mModePicker.setOnModeChangeListener(this); 1007 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 1008 } 1009 1010 mZoomControl = (ZoomControl) findViewById(R.id.zoom_control); 1011 mLocationManager = new LocationManager(this, this); 1012 1013 // Make sure preview is started. 1014 try { 1015 startPreviewThread.join(); 1016 if (mOpenCameraFail) { 1017 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1018 return; 1019 } else if (mCameraDisabled) { 1020 Util.showErrorAndFinish(this, R.string.camera_disabled); 1021 return; 1022 } 1023 } catch (InterruptedException ex) { 1024 // ignore 1025 } 1026 1027 mBackCameraId = CameraHolder.instance().getBackCameraId(); 1028 mFrontCameraId = CameraHolder.instance().getFrontCameraId(); 1029 1030 // Do this after starting preview because it depends on camera 1031 // parameters. 1032 initializeIndicatorControl(); 1033 } 1034 1035 private void overrideCameraSettings(final String flashMode, 1036 final String whiteBalance, final String focusMode) { 1037 if (mIndicatorControlContainer != null) { 1038 mIndicatorControlContainer.overrideSettings( 1039 CameraSettings.KEY_FLASH_MODE, flashMode, 1040 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 1041 CameraSettings.KEY_FOCUS_MODE, focusMode); 1042 } 1043 } 1044 1045 private void updateSceneModeUI() { 1046 // If scene mode is set, we cannot set flash mode, white balance, and 1047 // focus mode, instead, we read it from driver 1048 if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1049 overrideCameraSettings(mParameters.getFlashMode(), 1050 mParameters.getWhiteBalance(), mParameters.getFocusMode()); 1051 } else { 1052 overrideCameraSettings(null, null, null); 1053 } 1054 } 1055 1056 private void loadCameraPreferences() { 1057 CameraSettings settings = new CameraSettings(this, mInitialParams, 1058 mCameraId, CameraHolder.instance().getCameraInfo()); 1059 mPreferenceGroup = settings.getPreferenceGroup(R.xml.camera_preferences); 1060 } 1061 1062 private void initializeIndicatorControl() { 1063 // setting the indicator buttons. 1064 mIndicatorControlContainer = 1065 (IndicatorControlContainer) findViewById(R.id.indicator_control); 1066 if (mIndicatorControlContainer == null) return; 1067 loadCameraPreferences(); 1068 final String[] SETTING_KEYS = { 1069 CameraSettings.KEY_FLASH_MODE, 1070 CameraSettings.KEY_WHITE_BALANCE, 1071 CameraSettings.KEY_EXPOSURE, 1072 CameraSettings.KEY_SCENE_MODE}; 1073 final String[] OTHER_SETTING_KEYS = { 1074 CameraSettings.KEY_RECORD_LOCATION, 1075 CameraSettings.KEY_PICTURE_SIZE, 1076 CameraSettings.KEY_FOCUS_MODE}; 1077 1078 CameraPicker.setImageResourceId(R.drawable.ic_switch_photo_facing_holo_light); 1079 mIndicatorControlContainer.initialize(this, mPreferenceGroup, 1080 mParameters.isZoomSupported(), 1081 SETTING_KEYS, OTHER_SETTING_KEYS); 1082 updateSceneModeUI(); 1083 mIndicatorControlContainer.setListener(this); 1084 } 1085 1086 private boolean collapseCameraControls() { 1087 if ((mIndicatorControlContainer != null) 1088 && mIndicatorControlContainer.dismissSettingPopup()) { 1089 return true; 1090 } 1091 return false; 1092 } 1093 1094 private void enableCameraControls(boolean enable) { 1095 if (mIndicatorControlContainer != null) { 1096 mIndicatorControlContainer.setEnabled(enable); 1097 } 1098 if (mModePicker != null) mModePicker.setEnabled(enable); 1099 if (mZoomControl != null) mZoomControl.setEnabled(enable); 1100 } 1101 1102 public static int roundOrientation(int orientation) { 1103 return ((orientation + 45) / 90 * 90) % 360; 1104 } 1105 1106 private class MyOrientationEventListener 1107 extends OrientationEventListener { 1108 public MyOrientationEventListener(Context context) { 1109 super(context); 1110 } 1111 1112 @Override 1113 public void onOrientationChanged(int orientation) { 1114 // We keep the last known orientation. So if the user first orient 1115 // the camera then point the camera to floor or sky, we still have 1116 // the correct orientation. 1117 if (orientation == ORIENTATION_UNKNOWN) return; 1118 mOrientation = roundOrientation(orientation); 1119 // When the screen is unlocked, display rotation may change. Always 1120 // calculate the up-to-date orientationCompensation. 1121 int orientationCompensation = mOrientation 1122 + Util.getDisplayRotation(Camera.this); 1123 if (mOrientationCompensation != orientationCompensation) { 1124 mOrientationCompensation = orientationCompensation; 1125 setOrientationIndicator(mOrientationCompensation); 1126 } 1127 1128 // Show the toast after getting the first orientation changed. 1129 if (mHandler.hasMessages(SHOW_TAP_TO_FOCUS_TOAST)) { 1130 mHandler.removeMessages(SHOW_TAP_TO_FOCUS_TOAST); 1131 showTapToFocusToast(); 1132 } 1133 } 1134 } 1135 1136 private void setOrientationIndicator(int degree) { 1137 if (mThumbnailView != null) mThumbnailView.setDegree(degree); 1138 if (mModePicker != null) mModePicker.setDegree(degree); 1139 if (mSharePopup != null) mSharePopup.setOrientation(degree); 1140 if (mIndicatorControlContainer != null) mIndicatorControlContainer.setDegree(degree); 1141 if (mZoomControl != null) mZoomControl.setDegree(degree); 1142 if (mFocusIndicator != null) mFocusIndicator.setOrientation(degree); 1143 if (mFaceView != null) mFaceView.setOrientation(degree); 1144 if (mReviewCancelButton != null) mReviewCancelButton.setOrientation(degree); 1145 if (mReviewDoneButton != null) mReviewDoneButton.setOrientation(degree); 1146 } 1147 1148 @Override 1149 public void onStop() { 1150 super.onStop(); 1151 if (mMediaProviderClient != null) { 1152 mMediaProviderClient.release(); 1153 mMediaProviderClient = null; 1154 } 1155 } 1156 1157 private void checkStorage() { 1158 mPicturesRemaining = Storage.getAvailableSpace(); 1159 if (mPicturesRemaining > 0) { 1160 mPicturesRemaining /= 1500000; 1161 } 1162 updateStorageHint(); 1163 } 1164 1165 @OnClickAttr 1166 public void onThumbnailClicked(View v) { 1167 if (isCameraIdle() && mThumbnail != null) { 1168 showSharePopup(); 1169 } 1170 } 1171 1172 @OnClickAttr 1173 public void onReviewRetakeClicked(View v) { 1174 hidePostCaptureAlert(); 1175 startPreview(); 1176 } 1177 1178 @OnClickAttr 1179 public void onReviewDoneClicked(View v) { 1180 doAttach(); 1181 } 1182 1183 @OnClickAttr 1184 public void onReviewCancelClicked(View v) { 1185 doCancel(); 1186 } 1187 1188 private void doAttach() { 1189 if (mPausing) { 1190 return; 1191 } 1192 1193 byte[] data = mJpegImageData; 1194 1195 if (mCropValue == null) { 1196 // First handle the no crop case -- just return the value. If the 1197 // caller specifies a "save uri" then write the data to it's 1198 // stream. Otherwise, pass back a scaled down version of the bitmap 1199 // directly in the extras. 1200 if (mSaveUri != null) { 1201 OutputStream outputStream = null; 1202 try { 1203 outputStream = mContentResolver.openOutputStream(mSaveUri); 1204 outputStream.write(data); 1205 outputStream.close(); 1206 1207 setResultEx(RESULT_OK); 1208 finish(); 1209 } catch (IOException ex) { 1210 // ignore exception 1211 } finally { 1212 Util.closeSilently(outputStream); 1213 } 1214 } else { 1215 int orientation = Exif.getOrientation(data); 1216 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1217 bitmap = Util.rotate(bitmap, orientation); 1218 setResultEx(RESULT_OK, 1219 new Intent("inline-data").putExtra("data", bitmap)); 1220 finish(); 1221 } 1222 } else { 1223 // Save the image to a temp file and invoke the cropper 1224 Uri tempUri = null; 1225 FileOutputStream tempStream = null; 1226 try { 1227 File path = getFileStreamPath(sTempCropFilename); 1228 path.delete(); 1229 tempStream = openFileOutput(sTempCropFilename, 0); 1230 tempStream.write(data); 1231 tempStream.close(); 1232 tempUri = Uri.fromFile(path); 1233 } catch (FileNotFoundException ex) { 1234 setResultEx(Activity.RESULT_CANCELED); 1235 finish(); 1236 return; 1237 } catch (IOException ex) { 1238 setResultEx(Activity.RESULT_CANCELED); 1239 finish(); 1240 return; 1241 } finally { 1242 Util.closeSilently(tempStream); 1243 } 1244 1245 Bundle newExtras = new Bundle(); 1246 if (mCropValue.equals("circle")) { 1247 newExtras.putString("circleCrop", "true"); 1248 } 1249 if (mSaveUri != null) { 1250 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1251 } else { 1252 newExtras.putBoolean("return-data", true); 1253 } 1254 1255 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1256 1257 cropIntent.setData(tempUri); 1258 cropIntent.putExtras(newExtras); 1259 1260 startActivityForResult(cropIntent, CROP_MSG); 1261 } 1262 } 1263 1264 private void doCancel() { 1265 setResultEx(RESULT_CANCELED, new Intent()); 1266 finish(); 1267 } 1268 1269 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1270 switch (button.getId()) { 1271 case R.id.shutter_button: 1272 doFocus(pressed); 1273 break; 1274 } 1275 } 1276 1277 public void onShutterButtonClick(ShutterButton button) { 1278 switch (button.getId()) { 1279 case R.id.shutter_button: 1280 doSnap(); 1281 break; 1282 } 1283 } 1284 1285 private OnScreenHint mStorageHint; 1286 1287 private void updateStorageHint() { 1288 String noStorageText = null; 1289 1290 if (mPicturesRemaining == Storage.UNAVAILABLE) { 1291 noStorageText = getString(R.string.no_storage); 1292 } else if (mPicturesRemaining == Storage.PREPARING) { 1293 noStorageText = getString(R.string.preparing_sd); 1294 } else if (mPicturesRemaining == Storage.UNKNOWN_SIZE) { 1295 noStorageText = getString(R.string.access_sd_fail); 1296 } else if (mPicturesRemaining < 1L) { 1297 noStorageText = getString(R.string.not_enough_space); 1298 } 1299 1300 if (noStorageText != null) { 1301 if (mStorageHint == null) { 1302 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1303 } else { 1304 mStorageHint.setText(noStorageText); 1305 } 1306 mStorageHint.show(); 1307 } else if (mStorageHint != null) { 1308 mStorageHint.cancel(); 1309 mStorageHint = null; 1310 } 1311 } 1312 1313 private void installIntentFilter() { 1314 // install an intent filter to receive SD card related events. 1315 IntentFilter intentFilter = 1316 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1317 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1318 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1319 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1320 intentFilter.addDataScheme("file"); 1321 registerReceiver(mReceiver, intentFilter); 1322 mDidRegister = true; 1323 } 1324 1325 @Override 1326 protected void onResume() { 1327 super.onResume(); 1328 mPausing = false; 1329 if (mOpenCameraFail || mCameraDisabled) return; 1330 1331 mJpegPictureCallbackTime = 0; 1332 mZoomValue = 0; 1333 1334 // Start the preview if it is not started. 1335 if (mCameraState == PREVIEW_STOPPED) { 1336 try { 1337 mCameraDevice = Util.openCamera(this, mCameraId); 1338 initializeCapabilities(); 1339 resetExposureCompensation(); 1340 startPreview(); 1341 } catch (CameraHardwareException e) { 1342 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1343 return; 1344 } catch (CameraDisabledException e) { 1345 Util.showErrorAndFinish(this, R.string.camera_disabled); 1346 return; 1347 } 1348 } 1349 1350 if (mSurfaceHolder != null) { 1351 // If first time initialization is not finished, put it in the 1352 // message queue. 1353 if (!mFirstTimeInitialized) { 1354 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1355 } else { 1356 initializeSecondTime(); 1357 } 1358 } 1359 keepScreenOnAwhile(); 1360 1361 if (mCameraState == IDLE) { 1362 mOnResumeTime = SystemClock.uptimeMillis(); 1363 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 1364 } 1365 } 1366 1367 @Override 1368 protected void onPause() { 1369 mPausing = true; 1370 stopPreview(); 1371 // Close the camera now because other activities may need to use it. 1372 closeCamera(); 1373 resetScreenOn(); 1374 1375 // Clear UI. 1376 collapseCameraControls(); 1377 if (mSharePopup != null) mSharePopup.dismiss(); 1378 if (mFaceView != null) mFaceView.clear(); 1379 1380 if (mFirstTimeInitialized) { 1381 mOrientationListener.disable(); 1382 mImageSaver.finish(); 1383 mImageSaver = null; 1384 if (!mIsImageCaptureIntent && mThumbnail != null && !mThumbnail.fromFile()) { 1385 mThumbnail.saveTo(new File(getFilesDir(), Thumbnail.LAST_THUMB_FILENAME)); 1386 } 1387 } 1388 1389 if (mDidRegister) { 1390 unregisterReceiver(mReceiver); 1391 mDidRegister = false; 1392 } 1393 mLocationManager.recordLocation(false); 1394 updateExposureOnScreenIndicator(0); 1395 1396 mFocusManager.releaseSoundPlayer(); 1397 1398 if (mStorageHint != null) { 1399 mStorageHint.cancel(); 1400 mStorageHint = null; 1401 } 1402 1403 // If we are in an image capture intent and has taken 1404 // a picture, we just clear it in onPause. 1405 mJpegImageData = null; 1406 1407 // Remove the messages in the event queue. 1408 mHandler.removeMessages(FIRST_TIME_INIT); 1409 mHandler.removeMessages(CHECK_DISPLAY_ROTATION); 1410 mFocusManager.removeMessages(); 1411 1412 super.onPause(); 1413 } 1414 1415 @Override 1416 protected void onActivityResult( 1417 int requestCode, int resultCode, Intent data) { 1418 switch (requestCode) { 1419 case CROP_MSG: { 1420 Intent intent = new Intent(); 1421 if (data != null) { 1422 Bundle extras = data.getExtras(); 1423 if (extras != null) { 1424 intent.putExtras(extras); 1425 } 1426 } 1427 setResultEx(resultCode, intent); 1428 finish(); 1429 1430 File path = getFileStreamPath(sTempCropFilename); 1431 path.delete(); 1432 1433 break; 1434 } 1435 } 1436 } 1437 1438 private boolean canTakePicture() { 1439 return isCameraIdle() && (mPicturesRemaining > 0); 1440 } 1441 1442 @Override 1443 public void autoFocus() { 1444 mFocusStartTime = System.currentTimeMillis(); 1445 mCameraDevice.autoFocus(mAutoFocusCallback); 1446 mCameraState = FOCUSING; 1447 enableCameraControls(false); 1448 } 1449 1450 @Override 1451 public void cancelAutoFocus() { 1452 mCameraDevice.cancelAutoFocus(); 1453 mCameraState = IDLE; 1454 enableCameraControls(true); 1455 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1456 } 1457 1458 // Preview area is touched. Handle touch focus. 1459 @Override 1460 public boolean onTouch(View v, MotionEvent e) { 1461 if (mPausing || mCameraDevice == null || !mFirstTimeInitialized 1462 || mCameraState == SNAPSHOT_IN_PROGRESS) { 1463 return false; 1464 } 1465 1466 // Do not trigger touch focus if popup window is opened. 1467 if (collapseCameraControls()) return false; 1468 1469 // Check if metering area or focus area is supported. 1470 if (!mFocusAreaSupported && !mMeteringAreaSupported) return false; 1471 1472 return mFocusManager.onTouch(e); 1473 } 1474 1475 @Override 1476 public void onBackPressed() { 1477 if (!isCameraIdle()) { 1478 // ignore backs while we're taking a picture 1479 return; 1480 } else if (!collapseCameraControls()) { 1481 super.onBackPressed(); 1482 } 1483 } 1484 1485 @Override 1486 public boolean onKeyDown(int keyCode, KeyEvent event) { 1487 switch (keyCode) { 1488 case KeyEvent.KEYCODE_FOCUS: 1489 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1490 doFocus(true); 1491 } 1492 return true; 1493 case KeyEvent.KEYCODE_CAMERA: 1494 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1495 doSnap(); 1496 } 1497 return true; 1498 case KeyEvent.KEYCODE_DPAD_CENTER: 1499 // If we get a dpad center event without any focused view, move 1500 // the focus to the shutter button and press it. 1501 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1502 // Start auto-focus immediately to reduce shutter lag. After 1503 // the shutter button gets the focus, doFocus() will be 1504 // called again but it is fine. 1505 if (collapseCameraControls()) return true; 1506 doFocus(true); 1507 if (mShutterButton.isInTouchMode()) { 1508 mShutterButton.requestFocusFromTouch(); 1509 } else { 1510 mShutterButton.requestFocus(); 1511 } 1512 mShutterButton.setPressed(true); 1513 } 1514 return true; 1515 } 1516 1517 return super.onKeyDown(keyCode, event); 1518 } 1519 1520 @Override 1521 public boolean onKeyUp(int keyCode, KeyEvent event) { 1522 switch (keyCode) { 1523 case KeyEvent.KEYCODE_FOCUS: 1524 if (mFirstTimeInitialized) { 1525 doFocus(false); 1526 } 1527 return true; 1528 } 1529 return super.onKeyUp(keyCode, event); 1530 } 1531 1532 private void doSnap() { 1533 if (mPausing || collapseCameraControls()) return; 1534 1535 // Do not take the picture if there is not enough storage. 1536 if (mPicturesRemaining <= 0) { 1537 Log.i(TAG, "Not enough space or storage not ready. remaining=" + mPicturesRemaining); 1538 return; 1539 } 1540 1541 Log.v(TAG, "doSnap: mCameraState=" + mCameraState); 1542 mFocusManager.doSnap(); 1543 } 1544 1545 private void doFocus(boolean pressed) { 1546 if (mPausing || collapseCameraControls() || mCameraState == SNAPSHOT_IN_PROGRESS) return; 1547 1548 // Do not do focus if there is not enough storage. 1549 if (pressed && !canTakePicture()) return; 1550 1551 mFocusManager.doFocus(pressed); 1552 } 1553 1554 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1555 // Make sure we have a surface in the holder before proceeding. 1556 if (holder.getSurface() == null) { 1557 Log.d(TAG, "holder.getSurface() == null"); 1558 return; 1559 } 1560 1561 Log.v(TAG, "surfaceChanged. w=" + w + ". h=" + h); 1562 1563 // We need to save the holder for later use, even when the mCameraDevice 1564 // is null. This could happen if onResume() is invoked after this 1565 // function. 1566 mSurfaceHolder = holder; 1567 1568 // The mCameraDevice will be null if it fails to connect to the camera 1569 // hardware. In this case we will show a dialog and then finish the 1570 // activity, so it's OK to ignore it. 1571 if (mCameraDevice == null) return; 1572 1573 // Sometimes surfaceChanged is called after onPause or before onResume. 1574 // Ignore it. 1575 if (mPausing || isFinishing()) return; 1576 1577 // Set preview display if the surface is being created. Preview was 1578 // already started. Also restart the preview if display rotation has 1579 // changed. Sometimes this happens when the device is held in portrait 1580 // and camera app is opened. Rotation animation takes some time and 1581 // display rotation in onCreate may not be what we want. 1582 if (mCameraState != PREVIEW_STOPPED 1583 && (Util.getDisplayRotation(this) == mDisplayRotation) 1584 && holder.isCreating()) { 1585 // Set preview display if the surface is being created and preview 1586 // was already started. That means preview display was set to null 1587 // and we need to set it now. 1588 setPreviewDisplay(holder); 1589 } else { 1590 // 1. Restart the preview if the size of surface was changed. The 1591 // framework may not support changing preview display on the fly. 1592 // 2. Start the preview now if surface was destroyed and preview 1593 // stopped. 1594 startPreview(); 1595 } 1596 1597 // If first time initialization is not finished, send a message to do 1598 // it later. We want to finish surfaceChanged as soon as possible to let 1599 // user see preview first. 1600 if (!mFirstTimeInitialized) { 1601 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1602 } else { 1603 initializeSecondTime(); 1604 } 1605 } 1606 1607 public void surfaceCreated(SurfaceHolder holder) { 1608 } 1609 1610 public void surfaceDestroyed(SurfaceHolder holder) { 1611 stopPreview(); 1612 mSurfaceHolder = null; 1613 } 1614 1615 private void closeCamera() { 1616 if (mCameraDevice != null) { 1617 mCameraDevice.cancelAutoFocus(); // Reset the focus. 1618 CameraHolder.instance().release(); 1619 mCameraDevice.setZoomChangeListener(null); 1620 mCameraDevice.setFaceDetectionListener(null); 1621 mCameraDevice.setErrorCallback(null); 1622 mCameraDevice = null; 1623 mCameraState = PREVIEW_STOPPED; 1624 mFocusManager.onCameraReleased(); 1625 } 1626 } 1627 1628 private void setPreviewDisplay(SurfaceHolder holder) { 1629 try { 1630 mCameraDevice.setPreviewDisplay(holder); 1631 } catch (Throwable ex) { 1632 closeCamera(); 1633 throw new RuntimeException("setPreviewDisplay failed", ex); 1634 } 1635 } 1636 1637 private void startPreview() { 1638 if (mPausing || isFinishing()) return; 1639 1640 mFocusManager.resetTouchFocus(); 1641 1642 mCameraDevice.setErrorCallback(mErrorCallback); 1643 1644 // If we're previewing already, stop the preview first (this will blank 1645 // the screen). 1646 if (mCameraState != PREVIEW_STOPPED) stopPreview(); 1647 1648 setPreviewDisplay(mSurfaceHolder); 1649 mDisplayRotation = Util.getDisplayRotation(this); 1650 mDisplayOrientation = Util.getDisplayOrientation(mDisplayRotation, mCameraId); 1651 mCameraDevice.setDisplayOrientation(mDisplayOrientation); 1652 if (mFaceView != null) { 1653 mFaceView.setDisplayOrientation(mDisplayOrientation); 1654 } 1655 setCameraParameters(UPDATE_PARAM_ALL); 1656 // If the focus mode is continuous autofocus, call cancelAutoFocus to 1657 // resume it because it may have been paused by autoFocus call. 1658 if (Parameters.FOCUS_MODE_CONTINUOUS_PICTURE.equals(mParameters.getFocusMode())) { 1659 mCameraDevice.cancelAutoFocus(); 1660 } 1661 1662 try { 1663 Log.v(TAG, "startPreview"); 1664 mCameraDevice.startPreview(); 1665 } catch (Throwable ex) { 1666 closeCamera(); 1667 throw new RuntimeException("startPreview failed", ex); 1668 } 1669 1670 startFaceDetection(); 1671 mZoomState = ZOOM_STOPPED; 1672 mCameraState = IDLE; 1673 mFocusManager.onPreviewStarted(); 1674 } 1675 1676 private void stopPreview() { 1677 if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) { 1678 Log.v(TAG, "stopPreview"); 1679 mCameraDevice.stopPreview(); 1680 } 1681 mCameraState = PREVIEW_STOPPED; 1682 mFocusManager.onPreviewStopped(); 1683 } 1684 1685 private static boolean isSupported(String value, List<String> supported) { 1686 return supported == null ? false : supported.indexOf(value) >= 0; 1687 } 1688 1689 private void updateCameraParametersInitialize() { 1690 // Reset preview frame rate to the maximum because it may be lowered by 1691 // video camera application. 1692 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1693 if (frameRates != null) { 1694 Integer max = Collections.max(frameRates); 1695 mParameters.setPreviewFrameRate(max); 1696 } 1697 1698 mParameters.setRecordingHint(false); 1699 } 1700 1701 private void updateCameraParametersZoom() { 1702 // Set zoom. 1703 if (mParameters.isZoomSupported()) { 1704 mParameters.setZoom(mZoomValue); 1705 } 1706 } 1707 1708 private void updateCameraParametersPreference() { 1709 if (mFocusAreaSupported) { 1710 mParameters.setFocusAreas(mFocusManager.getFocusAreas()); 1711 } 1712 1713 if (mMeteringAreaSupported) { 1714 // Use the same area for focus and metering. 1715 mParameters.setMeteringAreas(mFocusManager.getMeteringAreas()); 1716 } 1717 1718 // Set picture size. 1719 String pictureSize = mPreferences.getString( 1720 CameraSettings.KEY_PICTURE_SIZE, null); 1721 if (pictureSize == null) { 1722 CameraSettings.initialCameraPictureSize(this, mParameters); 1723 } else { 1724 List<Size> supported = mParameters.getSupportedPictureSizes(); 1725 CameraSettings.setCameraPictureSize( 1726 pictureSize, supported, mParameters); 1727 } 1728 1729 // Set the preview frame aspect ratio according to the picture size. 1730 Size size = mParameters.getPictureSize(); 1731 1732 mPreviewPanel = findViewById(R.id.frame_layout); 1733 mPreviewFrameLayout = (PreviewFrameLayout) findViewById(R.id.frame); 1734 mPreviewFrameLayout.setAspectRatio((double) size.width / size.height); 1735 1736 // Set a preview size that is closest to the viewfinder height and has 1737 // the right aspect ratio. 1738 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1739 Size optimalSize = Util.getOptimalPreviewSize(this, 1740 sizes, (double) size.width / size.height); 1741 Size original = mParameters.getPreviewSize(); 1742 if (!original.equals(optimalSize)) { 1743 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1744 1745 // Zoom related settings will be changed for different preview 1746 // sizes, so set and read the parameters to get lastest values 1747 mCameraDevice.setParameters(mParameters); 1748 mParameters = mCameraDevice.getParameters(); 1749 } 1750 Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height); 1751 1752 // Since change scene mode may change supported values, 1753 // Set scene mode first, 1754 mSceneMode = mPreferences.getString( 1755 CameraSettings.KEY_SCENE_MODE, 1756 getString(R.string.pref_camera_scenemode_default)); 1757 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 1758 if (!mParameters.getSceneMode().equals(mSceneMode)) { 1759 mParameters.setSceneMode(mSceneMode); 1760 mCameraDevice.setParameters(mParameters); 1761 1762 // Setting scene mode will change the settings of flash mode, 1763 // white balance, and focus mode. Here we read back the 1764 // parameters, so we can know those settings. 1765 mParameters = mCameraDevice.getParameters(); 1766 } 1767 } else { 1768 mSceneMode = mParameters.getSceneMode(); 1769 if (mSceneMode == null) { 1770 mSceneMode = Parameters.SCENE_MODE_AUTO; 1771 } 1772 } 1773 1774 // Set JPEG quality. 1775 int jpegQuality = CameraProfile.getJpegEncodingQualityParameter(mCameraId, 1776 CameraProfile.QUALITY_HIGH); 1777 mParameters.setJpegQuality(jpegQuality); 1778 1779 // For the following settings, we need to check if the settings are 1780 // still supported by latest driver, if not, ignore the settings. 1781 1782 // Set exposure compensation 1783 int value = CameraSettings.readExposure(mPreferences); 1784 int max = mParameters.getMaxExposureCompensation(); 1785 int min = mParameters.getMinExposureCompensation(); 1786 if (value >= min && value <= max) { 1787 mParameters.setExposureCompensation(value); 1788 } else { 1789 Log.w(TAG, "invalid exposure range: " + value); 1790 } 1791 1792 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1793 // Set flash mode. 1794 String flashMode = mPreferences.getString( 1795 CameraSettings.KEY_FLASH_MODE, 1796 getString(R.string.pref_camera_flashmode_default)); 1797 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 1798 if (isSupported(flashMode, supportedFlash)) { 1799 mParameters.setFlashMode(flashMode); 1800 } else { 1801 flashMode = mParameters.getFlashMode(); 1802 if (flashMode == null) { 1803 flashMode = getString( 1804 R.string.pref_camera_flashmode_no_flash); 1805 } 1806 } 1807 1808 // Set white balance parameter. 1809 String whiteBalance = mPreferences.getString( 1810 CameraSettings.KEY_WHITE_BALANCE, 1811 getString(R.string.pref_camera_whitebalance_default)); 1812 if (isSupported(whiteBalance, 1813 mParameters.getSupportedWhiteBalance())) { 1814 mParameters.setWhiteBalance(whiteBalance); 1815 } else { 1816 whiteBalance = mParameters.getWhiteBalance(); 1817 if (whiteBalance == null) { 1818 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 1819 } 1820 } 1821 1822 // Set focus mode. 1823 mFocusManager.overrideFocusMode(null); 1824 mParameters.setFocusMode(mFocusManager.getFocusMode()); 1825 } else { 1826 mFocusManager.overrideFocusMode(mParameters.getFocusMode()); 1827 } 1828 } 1829 1830 // We separate the parameters into several subsets, so we can update only 1831 // the subsets actually need updating. The PREFERENCE set needs extra 1832 // locking because the preference can be changed from GLThread as well. 1833 private void setCameraParameters(int updateSet) { 1834 mParameters = mCameraDevice.getParameters(); 1835 1836 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 1837 updateCameraParametersInitialize(); 1838 } 1839 1840 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 1841 updateCameraParametersZoom(); 1842 } 1843 1844 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 1845 updateCameraParametersPreference(); 1846 } 1847 1848 mCameraDevice.setParameters(mParameters); 1849 } 1850 1851 // If the Camera is idle, update the parameters immediately, otherwise 1852 // accumulate them in mUpdateSet and update later. 1853 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 1854 mUpdateSet |= additionalUpdateSet; 1855 if (mCameraDevice == null) { 1856 // We will update all the parameters when we open the device, so 1857 // we don't need to do anything now. 1858 mUpdateSet = 0; 1859 return; 1860 } else if (isCameraIdle()) { 1861 setCameraParameters(mUpdateSet); 1862 updateSceneModeUI(); 1863 mUpdateSet = 0; 1864 } else { 1865 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 1866 mHandler.sendEmptyMessageDelayed( 1867 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 1868 } 1869 } 1870 } 1871 1872 private void gotoGallery() { 1873 MenuHelper.gotoCameraImageGallery(this); 1874 } 1875 1876 private boolean isCameraIdle() { 1877 return (mCameraState == IDLE) || (mFocusManager.isFocusCompleted()); 1878 } 1879 1880 private boolean isImageCaptureIntent() { 1881 String action = getIntent().getAction(); 1882 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 1883 } 1884 1885 private void setupCaptureParams() { 1886 Bundle myExtras = getIntent().getExtras(); 1887 if (myExtras != null) { 1888 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 1889 mCropValue = myExtras.getString("crop"); 1890 } 1891 } 1892 1893 private void showPostCaptureAlert() { 1894 if (mIsImageCaptureIntent) { 1895 Util.fadeOut(mIndicatorControlContainer); 1896 Util.fadeOut(mShutterButton); 1897 1898 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1899 for (int id : pickIds) { 1900 Util.fadeIn(findViewById(id)); 1901 } 1902 } 1903 } 1904 1905 private void hidePostCaptureAlert() { 1906 if (mIsImageCaptureIntent) { 1907 enableCameraControls(true); 1908 1909 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1910 for (int id : pickIds) { 1911 Util.fadeOut(findViewById(id)); 1912 } 1913 1914 Util.fadeIn(mShutterButton); 1915 Util.fadeIn(mIndicatorControlContainer); 1916 } 1917 } 1918 1919 @Override 1920 public boolean onPrepareOptionsMenu(Menu menu) { 1921 super.onPrepareOptionsMenu(menu); 1922 // Only show the menu when camera is idle. 1923 for (int i = 0; i < menu.size(); i++) { 1924 menu.getItem(i).setVisible(isCameraIdle()); 1925 } 1926 1927 return true; 1928 } 1929 1930 @Override 1931 public boolean onCreateOptionsMenu(Menu menu) { 1932 super.onCreateOptionsMenu(menu); 1933 1934 if (mIsImageCaptureIntent) { 1935 // No options menu for attach mode. 1936 return false; 1937 } else { 1938 addBaseMenuItems(menu); 1939 } 1940 return true; 1941 } 1942 1943 private void addBaseMenuItems(Menu menu) { 1944 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_VIDEO, new Runnable() { 1945 public void run() { 1946 switchToOtherMode(ModePicker.MODE_VIDEO); 1947 } 1948 }); 1949 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_PANORAMA, new Runnable() { 1950 public void run() { 1951 switchToOtherMode(ModePicker.MODE_PANORAMA); 1952 } 1953 }); 1954 1955 if (mNumberOfCameras > 1) { 1956 menu.add(R.string.switch_camera_id) 1957 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1958 public boolean onMenuItemClick(MenuItem item) { 1959 CameraSettings.writePreferredCameraId(mPreferences, 1960 ((mCameraId == mFrontCameraId) 1961 ? mBackCameraId : mFrontCameraId)); 1962 onSharedPreferenceChanged(); 1963 return true; 1964 } 1965 }).setIcon(android.R.drawable.ic_menu_camera); 1966 } 1967 } 1968 1969 private boolean switchToOtherMode(int mode) { 1970 if (isFinishing()) return false; 1971 MenuHelper.gotoMode(mode, Camera.this); 1972 mHandler.removeMessages(FIRST_TIME_INIT); 1973 finish(); 1974 return true; 1975 } 1976 1977 public boolean onModeChanged(int mode) { 1978 if (mode != ModePicker.MODE_CAMERA) { 1979 return switchToOtherMode(mode); 1980 } else { 1981 return true; 1982 } 1983 } 1984 1985 public void onSharedPreferenceChanged() { 1986 // ignore the events after "onPause()" 1987 if (mPausing) return; 1988 1989 boolean recordLocation = RecordLocationPreference.get( 1990 mPreferences, getContentResolver()); 1991 mLocationManager.recordLocation(recordLocation); 1992 1993 int cameraId = CameraSettings.readPreferredCameraId(mPreferences); 1994 if (mCameraId != cameraId) { 1995 // Restart the activity to have a crossfade animation. 1996 // TODO: Use SurfaceTexture to implement a better and faster 1997 // animation. 1998 if (mIsImageCaptureIntent) { 1999 // If the intent is camera capture, stay in camera capture mode. 2000 MenuHelper.gotoCameraMode(this, getIntent()); 2001 } else { 2002 MenuHelper.gotoCameraMode(this); 2003 } 2004 2005 finish(); 2006 } else { 2007 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 2008 } 2009 2010 int exposureValue = CameraSettings.readExposure(mPreferences); 2011 updateExposureOnScreenIndicator(exposureValue); 2012 } 2013 2014 @Override 2015 public void onUserInteraction() { 2016 super.onUserInteraction(); 2017 keepScreenOnAwhile(); 2018 } 2019 2020 private void resetScreenOn() { 2021 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2022 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2023 } 2024 2025 private void keepScreenOnAwhile() { 2026 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2027 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2028 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2029 } 2030 2031 public void onRestorePreferencesClicked() { 2032 if (mPausing) return; 2033 Runnable runnable = new Runnable() { 2034 public void run() { 2035 restorePreferences(); 2036 } 2037 }; 2038 MenuHelper.confirmAction(this, 2039 getString(R.string.confirm_restore_title), 2040 getString(R.string.confirm_restore_message), 2041 runnable); 2042 } 2043 2044 private void restorePreferences() { 2045 // Reset the zoom. Zoom value is not stored in preference. 2046 if (mParameters.isZoomSupported()) { 2047 mZoomValue = 0; 2048 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 2049 mZoomControl.setZoomIndex(0); 2050 } 2051 if (mIndicatorControlContainer != null) { 2052 mIndicatorControlContainer.dismissSettingPopup(); 2053 CameraSettings.restorePreferences(Camera.this, mPreferences, 2054 mParameters); 2055 mIndicatorControlContainer.reloadPreferences(); 2056 onSharedPreferenceChanged(); 2057 } 2058 } 2059 2060 public void onOverriddenPreferencesClicked() { 2061 if (mPausing) return; 2062 if (mNotSelectableToast == null) { 2063 String str = getResources().getString(R.string.not_selectable_in_scene_mode); 2064 mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT); 2065 } 2066 mNotSelectableToast.show(); 2067 } 2068 2069 private void showSharePopup() { 2070 mImageSaver.waitDone(); 2071 Uri uri = mThumbnail.getUri(); 2072 if (mSharePopup == null || !uri.equals(mSharePopup.getUri())) { 2073 // SharePopup window takes the mPreviewPanel as its size reference. 2074 mSharePopup = new SharePopup(this, uri, mThumbnail.getBitmap(), 2075 mOrientationCompensation, mPreviewPanel); 2076 } 2077 mSharePopup.showAtLocation(mThumbnailView, Gravity.NO_GRAVITY, 0, 0); 2078 } 2079 2080 @Override 2081 public void onFaceDetection(Face[] faces, android.hardware.Camera camera) { 2082 mFaceView.setFaces(faces); 2083 } 2084 2085 private void showTapToFocusToast() { 2086 // Show the toast. 2087 RotateLayout v = (RotateLayout) findViewById(R.id.tap_to_focus_prompt); 2088 v.setOrientation(mOrientationCompensation); 2089 v.startAnimation(AnimationUtils.loadAnimation(this, R.anim.on_screen_hint_enter)); 2090 v.setVisibility(View.VISIBLE); 2091 mHandler.sendEmptyMessageDelayed(DISMISS_TAP_TO_FOCUS_TOAST, 5000); 2092 // Clear the preference. 2093 Editor editor = mPreferences.edit(); 2094 editor.putBoolean(CameraSettings.KEY_TAP_TO_FOCUS_PROMPT_SHOWN, false); 2095 editor.apply(); 2096 } 2097 2098 private void initializeCapabilities() { 2099 mInitialParams = mCameraDevice.getParameters(); 2100 mFocusManager.initializeParameters(mInitialParams); 2101 mFocusAreaSupported = (mInitialParams.getMaxNumFocusAreas() > 0 2102 && isSupported(Parameters.FOCUS_MODE_AUTO, 2103 mInitialParams.getSupportedFocusModes())); 2104 mMeteringAreaSupported = (mInitialParams.getMaxNumMeteringAreas() > 0); 2105 } 2106} 2107