Camera.java revision 419d20ae123f53226ccefb7d28d8a40add8ffd0a
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.RotateTextToast; 26import com.android.camera.ui.SharePopup; 27import com.android.camera.ui.ZoomControl; 28 29import android.app.Activity; 30import android.content.BroadcastReceiver; 31import android.content.ContentProviderClient; 32import android.content.ContentResolver; 33import android.content.Context; 34import android.content.Intent; 35import android.content.IntentFilter; 36import android.content.SharedPreferences.Editor; 37import android.content.pm.ActivityInfo; 38import android.graphics.Bitmap; 39import android.hardware.Camera.CameraInfo; 40import android.hardware.Camera.Face; 41import android.hardware.Camera.FaceDetectionListener; 42import android.hardware.Camera.Parameters; 43import android.hardware.Camera.PictureCallback; 44import android.hardware.Camera.Size; 45import android.location.Location; 46import android.media.CameraProfile; 47import android.net.Uri; 48import android.os.Bundle; 49import android.os.Handler; 50import android.os.Looper; 51import android.os.Message; 52import android.os.MessageQueue; 53import android.os.SystemClock; 54import android.provider.MediaStore; 55import android.util.Log; 56import android.view.GestureDetector; 57import android.view.Gravity; 58import android.view.KeyEvent; 59import android.view.Menu; 60import android.view.MenuItem; 61import android.view.MenuItem.OnMenuItemClickListener; 62import android.view.MotionEvent; 63import android.view.OrientationEventListener; 64import android.view.SurfaceHolder; 65import android.view.SurfaceView; 66import android.view.View; 67import android.view.ViewGroup; 68import android.view.WindowManager; 69import android.view.animation.AnimationUtils; 70import android.widget.ImageView; 71import android.widget.TextView; 72import android.widget.Toast; 73 74import java.io.File; 75import java.io.FileNotFoundException; 76import java.io.FileOutputStream; 77import java.io.IOException; 78import java.io.OutputStream; 79import java.util.ArrayList; 80import java.util.Collections; 81import java.util.Formatter; 82import java.util.List; 83 84/** The Camera activity which can preview and take pictures. */ 85public class Camera extends ActivityBase implements FocusManager.Listener, 86 View.OnTouchListener, ShutterButton.OnShutterButtonListener, 87 SurfaceHolder.Callback, ModePicker.OnModeChangeListener, 88 FaceDetectionListener, CameraPreference.OnPreferenceChangedListener, 89 LocationManager.Listener { 90 91 private static final String TAG = "camera"; 92 93 private static final int CROP_MSG = 1; 94 private static final int FIRST_TIME_INIT = 2; 95 private static final int CLEAR_SCREEN_DELAY = 3; 96 private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 4; 97 private static final int CHECK_DISPLAY_ROTATION = 5; 98 private static final int SHOW_TAP_TO_FOCUS_TOAST = 6; 99 private static final int UPDATE_THUMBNAIL = 7; 100 101 // The subset of parameters we need to update in setCameraParameters(). 102 private static final int UPDATE_PARAM_INITIALIZE = 1; 103 private static final int UPDATE_PARAM_ZOOM = 2; 104 private static final int UPDATE_PARAM_PREFERENCE = 4; 105 private static final int UPDATE_PARAM_ALL = -1; 106 107 // When setCameraParametersWhenIdle() is called, we accumulate the subsets 108 // needed to be updated in mUpdateSet. 109 private int mUpdateSet; 110 111 private static final int SCREEN_DELAY = 2 * 60 * 1000; 112 113 private static final int ZOOM_STOPPED = 0; 114 private static final int ZOOM_START = 1; 115 private static final int ZOOM_STOPPING = 2; 116 117 private int mZoomState = ZOOM_STOPPED; 118 private boolean mSmoothZoomSupported = false; 119 private int mZoomValue; // The current zoom value. 120 private int mZoomMax; 121 private int mTargetZoomValue; 122 private ZoomControl mZoomControl; 123 124 private Parameters mParameters; 125 private Parameters mInitialParams; 126 private boolean mFocusAreaSupported; 127 private boolean mMeteringAreaSupported; 128 private boolean mAeLockSupported; 129 private boolean mAwbLockSupported; 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 ContentProviderClient mMediaProviderClient; 142 private SurfaceHolder mSurfaceHolder = null; 143 private ShutterButton mShutterButton; 144 private GestureDetector mPopupGestureDetector; 145 private boolean mOpenCameraFail = false; 146 private boolean mCameraDisabled = false; 147 private boolean mFaceDetectionStarted = false; 148 149 private View mPreviewPanel; // The container of PreviewFrameLayout. 150 private PreviewFrameLayout mPreviewFrameLayout; 151 private View mPreviewFrame; // Preview frame area. 152 private RotateDialogController mRotateDialog; 153 154 // A popup window that contains a bigger thumbnail and a list of apps to share. 155 private SharePopup mSharePopup; 156 // The bitmap of the last captured picture thumbnail and the URI of the 157 // original picture. 158 private Thumbnail mThumbnail; 159 // An imageview showing showing the last captured picture thumbnail. 160 private RotateImageView mThumbnailView; 161 private ModePicker mModePicker; 162 private FaceView mFaceView; 163 private RotateLayout mFocusAreaIndicator; 164 private Rotatable mReviewCancelButton; 165 private Rotatable mReviewDoneButton; 166 167 // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. 168 private String mCropValue; 169 private Uri mSaveUri; 170 171 // Small indicators which show the camera settings in the viewfinder. 172 private TextView mExposureIndicator; 173 private ImageView mGpsIndicator; 174 private ImageView mFlashIndicator; 175 private ImageView mSceneIndicator; 176 private ImageView mWhiteBalanceIndicator; 177 private ImageView mFocusIndicator; 178 179 // We use a thread in ImageSaver to do the work of saving images and 180 // generating thumbnails. This reduces the shot-to-shot time. 181 private ImageSaver mImageSaver; 182 183 private Runnable mDoSnapRunnable = new Runnable() { 184 public void run() { 185 onShutterButtonClick(); 186 } 187 }; 188 189 private final StringBuilder mBuilder = new StringBuilder(); 190 private final Formatter mFormatter = new Formatter(mBuilder); 191 private final Object[] mFormatterArgs = new Object[1]; 192 193 /** 194 * An unpublished intent flag requesting to return as soon as capturing 195 * is completed. 196 * 197 * TODO: consider publishing by moving into MediaStore. 198 */ 199 private static final String EXTRA_QUICK_CAPTURE = 200 "android.intent.extra.quickCapture"; 201 202 // The display rotation in degrees. This is only valid when mCameraState is 203 // not PREVIEW_STOPPED. 204 private int mDisplayRotation; 205 // The value for android.hardware.Camera.setDisplayOrientation. 206 private int mDisplayOrientation; 207 private boolean mPausing; 208 private boolean mFirstTimeInitialized; 209 private boolean mIsImageCaptureIntent; 210 211 private static final int PREVIEW_STOPPED = 0; 212 private static final int IDLE = 1; // preview is active 213 // Focus is in progress. The exact focus state is in Focus.java. 214 private static final int FOCUSING = 2; 215 private static final int SNAPSHOT_IN_PROGRESS = 3; 216 private int mCameraState = PREVIEW_STOPPED; 217 private boolean mSnapshotOnIdle = false; 218 219 private ContentResolver mContentResolver; 220 private boolean mDidRegister = false; 221 222 private LocationManager mLocationManager; 223 224 private final ShutterCallback mShutterCallback = new ShutterCallback(); 225 private final PostViewPictureCallback mPostViewPictureCallback = 226 new PostViewPictureCallback(); 227 private final RawPictureCallback mRawPictureCallback = 228 new RawPictureCallback(); 229 private final AutoFocusCallback mAutoFocusCallback = 230 new AutoFocusCallback(); 231 private final ZoomListener mZoomListener = new ZoomListener(); 232 private final CameraErrorCallback mErrorCallback = new CameraErrorCallback(); 233 234 private long mFocusStartTime; 235 private long mCaptureStartTime; 236 private long mShutterCallbackTime; 237 private long mPostViewPictureCallbackTime; 238 private long mRawPictureCallbackTime; 239 private long mJpegPictureCallbackTime; 240 private long mOnResumeTime; 241 private long mPicturesRemaining; 242 private byte[] mJpegImageData; 243 244 // These latency time are for the CameraLatency test. 245 public long mAutoFocusTime; 246 public long mShutterLag; 247 public long mShutterToPictureDisplayedTime; 248 public long mPictureDisplayedToJpegCallbackTime; 249 public long mJpegCallbackFinishTime; 250 251 // This handles everything about focus. 252 private FocusManager mFocusManager; 253 private String mSceneMode; 254 private Toast mNotSelectableToast; 255 private Toast mNoShareToast; 256 257 private final Handler mHandler = new MainHandler(); 258 private IndicatorControlContainer mIndicatorControlContainer; 259 private PreferenceGroup mPreferenceGroup; 260 261 // multiple cameras support 262 private int mNumberOfCameras; 263 private int mCameraId; 264 private int mFrontCameraId; 265 private int mBackCameraId; 266 267 private boolean mQuickCapture; 268 269 /** 270 * This Handler is used to post message back onto the main thread of the 271 * application 272 */ 273 private class MainHandler extends Handler { 274 @Override 275 public void handleMessage(Message msg) { 276 switch (msg.what) { 277 case CLEAR_SCREEN_DELAY: { 278 getWindow().clearFlags( 279 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 280 break; 281 } 282 283 case FIRST_TIME_INIT: { 284 initializeFirstTime(); 285 break; 286 } 287 288 case SET_CAMERA_PARAMETERS_WHEN_IDLE: { 289 setCameraParametersWhenIdle(0); 290 break; 291 } 292 293 case CHECK_DISPLAY_ROTATION: { 294 // Set the display orientation if display rotation has changed. 295 // Sometimes this happens when the device is held upside 296 // down and camera app is opened. Rotation animation will 297 // take some time and the rotation value we have got may be 298 // wrong. Framework does not have a callback for this now. 299 if (Util.getDisplayRotation(Camera.this) != mDisplayRotation) { 300 setDisplayOrientation(); 301 } 302 if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) { 303 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 304 } 305 break; 306 } 307 308 case SHOW_TAP_TO_FOCUS_TOAST: { 309 showTapToFocusToast(); 310 break; 311 } 312 313 case UPDATE_THUMBNAIL: { 314 mImageSaver.updateThumbnail(); 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 mFocusAreaIndicator = (RotateLayout) findViewById(R.id.focus_indicator_rotate_layout); 379 CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; 380 boolean mirror = (info.facing == CameraInfo.CAMERA_FACING_FRONT); 381 mFocusManager.initialize(mFocusAreaIndicator, mPreviewFrame, mFaceView, this, 382 mirror, mDisplayOrientation); 383 mFocusManager.initializeSoundPlayer(getResources().openRawResourceFd(R.raw.camera_focus)); 384 mImageSaver = new ImageSaver(); 385 Util.initializeScreenBrightness(getWindow(), getContentResolver()); 386 installIntentFilter(); 387 initializeZoom(); 388 updateOnScreenIndicators(); 389 startFaceDetection(); 390 // Show the tap to focus toast if this is the first start. 391 if (mFocusAreaSupported && 392 mPreferences.getBoolean(CameraSettings.KEY_CAMERA_FIRST_USE_HINT_SHOWN, true)) { 393 // Delay the toast for one second to wait for orientation. 394 mHandler.sendEmptyMessageDelayed(SHOW_TAP_TO_FOCUS_TOAST, 1000); 395 } 396 397 mFirstTimeInitialized = true; 398 addIdleHandler(); 399 } 400 401 private void addIdleHandler() { 402 MessageQueue queue = Looper.myQueue(); 403 queue.addIdleHandler(new MessageQueue.IdleHandler() { 404 public boolean queueIdle() { 405 Storage.ensureOSXCompatible(); 406 return false; 407 } 408 }); 409 } 410 411 private void initThumbnailButton() { 412 // Load the thumbnail from the disk. 413 mThumbnail = Thumbnail.loadFrom(new File(getFilesDir(), Thumbnail.LAST_THUMB_FILENAME)); 414 updateThumbnailButton(); 415 } 416 417 private void updateThumbnailButton() { 418 // Update last image if URI is invalid and the storage is ready. 419 if ((mThumbnail == null || !Util.isUriValid(mThumbnail.getUri(), mContentResolver)) 420 && mPicturesRemaining >= 0) { 421 mThumbnail = Thumbnail.getLastThumbnail(mContentResolver); 422 } 423 if (mThumbnail != null) { 424 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 425 } else { 426 mThumbnailView.setBitmap(null); 427 } 428 } 429 430 // If the activity is paused and resumed, this method will be called in 431 // onResume. 432 private void initializeSecondTime() { 433 // Start orientation listener as soon as possible because it takes 434 // some time to get first orientation. 435 mOrientationListener.enable(); 436 437 // Start location update if needed. 438 boolean recordLocation = RecordLocationPreference.get( 439 mPreferences, getContentResolver()); 440 mLocationManager.recordLocation(recordLocation); 441 442 installIntentFilter(); 443 mFocusManager.initializeSoundPlayer(getResources().openRawResourceFd(R.raw.camera_focus)); 444 mImageSaver = new ImageSaver(); 445 initializeZoom(); 446 keepMediaProviderInstance(); 447 checkStorage(); 448 hidePostCaptureAlert(); 449 450 if (!mIsImageCaptureIntent) { 451 updateThumbnailButton(); 452 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 453 } 454 } 455 456 private class ZoomChangeListener implements ZoomControl.OnZoomChangedListener { 457 // only for immediate zoom 458 @Override 459 public void onZoomValueChanged(int index) { 460 Camera.this.onZoomValueChanged(index); 461 } 462 463 // only for smooth zoom 464 @Override 465 public void onZoomStateChanged(int state) { 466 if (mPausing) return; 467 468 Log.v(TAG, "zoom picker state=" + state); 469 if (state == ZoomControl.ZOOM_IN) { 470 Camera.this.onZoomValueChanged(mZoomMax); 471 } else if (state == ZoomControl.ZOOM_OUT) { 472 Camera.this.onZoomValueChanged(0); 473 } else { 474 mTargetZoomValue = -1; 475 if (mZoomState == ZOOM_START) { 476 mZoomState = ZOOM_STOPPING; 477 mCameraDevice.stopSmoothZoom(); 478 } 479 } 480 } 481 } 482 483 private void initializeZoom() { 484 // Get the parameter to make sure we have the up-to-date zoom value. 485 mParameters = mCameraDevice.getParameters(); 486 if (!mParameters.isZoomSupported()) return; 487 mZoomMax = mParameters.getMaxZoom(); 488 // Currently we use immediate zoom for fast zooming to get better UX and 489 // there is no plan to take advantage of the smooth zoom. 490 mZoomControl.setZoomMax(mZoomMax); 491 mZoomControl.setZoomIndex(mParameters.getZoom()); 492 mZoomControl.setSmoothZoomSupported(mSmoothZoomSupported); 493 mZoomControl.setOnZoomChangeListener(new ZoomChangeListener()); 494 mCameraDevice.setZoomChangeListener(mZoomListener); 495 } 496 497 private void onZoomValueChanged(int index) { 498 // Not useful to change zoom value when the activity is paused. 499 if (mPausing) return; 500 501 if (mSmoothZoomSupported) { 502 if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { 503 mTargetZoomValue = index; 504 if (mZoomState == ZOOM_START) { 505 mZoomState = ZOOM_STOPPING; 506 mCameraDevice.stopSmoothZoom(); 507 } 508 } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { 509 mTargetZoomValue = index; 510 mCameraDevice.startSmoothZoom(index); 511 mZoomState = ZOOM_START; 512 } 513 } else { 514 mZoomValue = index; 515 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 516 } 517 } 518 519 @Override 520 public void startFaceDetection() { 521 if (mFaceDetectionStarted || mCameraState != IDLE) return; 522 if (mParameters.getMaxNumDetectedFaces() > 0) { 523 mFaceDetectionStarted = true; 524 mFaceView = (FaceView) findViewById(R.id.face_view); 525 mFaceView.clear(); 526 mFaceView.setVisibility(View.VISIBLE); 527 mFaceView.setDisplayOrientation(mDisplayOrientation); 528 CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; 529 mFaceView.setMirror(info.facing == CameraInfo.CAMERA_FACING_FRONT); 530 mFaceView.resume(); 531 mCameraDevice.setFaceDetectionListener(this); 532 mCameraDevice.startFaceDetection(); 533 } 534 } 535 536 @Override 537 public void stopFaceDetection() { 538 if (!mFaceDetectionStarted) return; 539 if (mParameters.getMaxNumDetectedFaces() > 0) { 540 mFaceDetectionStarted = false; 541 mCameraDevice.setFaceDetectionListener(null); 542 mCameraDevice.stopFaceDetection(); 543 if (mFaceView != null) mFaceView.clear(); 544 } 545 } 546 547 private class PopupGestureListener 548 extends GestureDetector.SimpleOnGestureListener { 549 @Override 550 public boolean onDown(MotionEvent e) { 551 // Check if the popup window is visible. 552 View popup = mIndicatorControlContainer.getActiveSettingPopup(); 553 if (popup == null) return false; 554 555 556 // Let popup window, indicator control or preview frame handle the 557 // event by themselves. Dismiss the popup window if users touch on 558 // other areas. 559 if (!Util.pointInView(e.getX(), e.getY(), popup) 560 && !Util.pointInView(e.getX(), e.getY(), mIndicatorControlContainer) 561 && !Util.pointInView(e.getX(), e.getY(), mPreviewFrame)) { 562 mIndicatorControlContainer.dismissSettingPopup(); 563 // Let event fall through. 564 } 565 return false; 566 } 567 } 568 569 @Override 570 public boolean dispatchTouchEvent(MotionEvent m) { 571 // Check if the popup window should be dismissed first. 572 if (mPopupGestureDetector != null && mPopupGestureDetector.onTouchEvent(m)) { 573 return true; 574 } 575 576 return super.dispatchTouchEvent(m); 577 } 578 579 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 580 @Override 581 public void onReceive(Context context, Intent intent) { 582 String action = intent.getAction(); 583 Log.d(TAG, "Received intent action=" + action); 584 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 585 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 586 || action.equals(Intent.ACTION_MEDIA_CHECKING)) { 587 checkStorage(); 588 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 589 checkStorage(); 590 if (!mIsImageCaptureIntent) { 591 updateThumbnailButton(); 592 } 593 } 594 } 595 }; 596 597 private void initOnScreenIndicator() { 598 mGpsIndicator = (ImageView) findViewById(R.id.onscreen_gps_indicator); 599 mExposureIndicator = (TextView) findViewById(R.id.onscreen_exposure_indicator); 600 mFlashIndicator = (ImageView) findViewById(R.id.onscreen_flash_indicator); 601 mSceneIndicator = (ImageView) findViewById(R.id.onscreen_scene_indicator); 602 mWhiteBalanceIndicator = 603 (ImageView) findViewById(R.id.onscreen_white_balance_indicator); 604 mFocusIndicator = (ImageView) findViewById(R.id.onscreen_focus_indicator); 605 } 606 607 @Override 608 public void showGpsOnScreenIndicator(boolean hasSignal) { 609 if (hasSignal) { 610 mGpsIndicator.setImageResource(R.drawable.ic_viewfinder_gps_on); 611 } else { 612 mGpsIndicator.setImageResource(R.drawable.ic_viewfinder_gps_no_signal); 613 } 614 mGpsIndicator.setVisibility(View.VISIBLE); 615 } 616 617 @Override 618 public void hideGpsOnScreenIndicator() { 619 mGpsIndicator.setVisibility(View.GONE); 620 } 621 622 private void updateExposureOnScreenIndicator(int value) { 623 if (value == 0) { 624 mExposureIndicator.setText(""); 625 mExposureIndicator.setVisibility(View.GONE); 626 } else { 627 float step = mParameters.getExposureCompensationStep(); 628 mFormatterArgs[0] = value * step; 629 mBuilder.delete(0, mBuilder.length()); 630 mFormatter.format("%+1.1f", mFormatterArgs); 631 String exposure = mFormatter.toString(); 632 mExposureIndicator.setText(exposure); 633 mExposureIndicator.setVisibility(View.VISIBLE); 634 } 635 } 636 637 private void updateFlashOnScreenIndicator(String value) { 638 if (Parameters.FLASH_MODE_AUTO.equals(value)) { 639 mFlashIndicator.setImageResource(R.drawable.ic_indicators_landscape_flash_auto); 640 } else if (Parameters.FLASH_MODE_ON.equals(value)) { 641 mFlashIndicator.setImageResource(R.drawable.ic_indicators_landscape_flash_on); 642 } else if (Parameters.FLASH_MODE_OFF.equals(value)) { 643 mFlashIndicator.setImageResource(R.drawable.ic_indicators_landscape_flash_off); 644 } 645 } 646 647 private void updateSceneOnScreenIndicator(boolean isVisible) { 648 mSceneIndicator.setVisibility(isVisible ? View.VISIBLE : View.GONE); 649 } 650 651 private void updateWhiteBalanceOnScreenIndicator(String value) { 652 if (Parameters.WHITE_BALANCE_AUTO.equals(value)) { 653 mWhiteBalanceIndicator.setVisibility(View.GONE); 654 } else { 655 if (Parameters.WHITE_BALANCE_FLUORESCENT.equals(value)) { 656 mWhiteBalanceIndicator.setImageResource(R.drawable.ic_indicators_fluorescent); 657 } else if (Parameters.WHITE_BALANCE_INCANDESCENT.equals(value)) { 658 mWhiteBalanceIndicator.setImageResource(R.drawable.ic_indicators_incandescent); 659 } else if (Parameters.WHITE_BALANCE_DAYLIGHT.equals(value)) { 660 mWhiteBalanceIndicator.setImageResource(R.drawable.ic_indicators_sunlight); 661 } else if (Parameters.WHITE_BALANCE_CLOUDY_DAYLIGHT.equals(value)) { 662 mWhiteBalanceIndicator.setImageResource(R.drawable.ic_indicators_cloudy); 663 } 664 mWhiteBalanceIndicator.setVisibility(View.VISIBLE); 665 } 666 } 667 668 private void updateFocusOnScreenIndicator(String value) { 669 if (Parameters.FOCUS_MODE_INFINITY.equals(value)) { 670 mFocusIndicator.setImageResource(R.drawable.ic_indicators_landscape); 671 mFocusIndicator.setVisibility(View.VISIBLE); 672 } else if (Parameters.FOCUS_MODE_MACRO.equals(value)) { 673 mFocusIndicator.setImageResource(R.drawable.ic_indicators_macro); 674 mFocusIndicator.setVisibility(View.VISIBLE); 675 } else { 676 mFocusIndicator.setVisibility(View.GONE); 677 } 678 } 679 680 private void updateOnScreenIndicators() { 681 boolean isAutoScene = !(Parameters.SCENE_MODE_AUTO.equals(mParameters.getSceneMode())); 682 updateSceneOnScreenIndicator(isAutoScene); 683 updateExposureOnScreenIndicator(CameraSettings.readExposure(mPreferences)); 684 updateFlashOnScreenIndicator(mParameters.getFlashMode()); 685 updateWhiteBalanceOnScreenIndicator(mParameters.getWhiteBalance()); 686 updateFocusOnScreenIndicator(mParameters.getFocusMode()); 687 } 688 private final class ShutterCallback 689 implements android.hardware.Camera.ShutterCallback { 690 public void onShutter() { 691 mShutterCallbackTime = System.currentTimeMillis(); 692 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 693 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 694 mFocusManager.onShutter(); 695 } 696 } 697 698 private final class PostViewPictureCallback implements PictureCallback { 699 public void onPictureTaken( 700 byte [] data, android.hardware.Camera camera) { 701 mPostViewPictureCallbackTime = System.currentTimeMillis(); 702 Log.v(TAG, "mShutterToPostViewCallbackTime = " 703 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 704 + "ms"); 705 } 706 } 707 708 private final class RawPictureCallback implements PictureCallback { 709 public void onPictureTaken( 710 byte [] rawData, android.hardware.Camera camera) { 711 mRawPictureCallbackTime = System.currentTimeMillis(); 712 Log.v(TAG, "mShutterToRawCallbackTime = " 713 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 714 } 715 } 716 717 private final class JpegPictureCallback implements PictureCallback { 718 Location mLocation; 719 720 public JpegPictureCallback(Location loc) { 721 mLocation = loc; 722 } 723 724 public void onPictureTaken( 725 final byte [] jpegData, final android.hardware.Camera camera) { 726 if (mPausing) { 727 return; 728 } 729 730 mJpegPictureCallbackTime = System.currentTimeMillis(); 731 // If postview callback has arrived, the captured image is displayed 732 // in postview callback. If not, the captured image is displayed in 733 // raw picture callback. 734 if (mPostViewPictureCallbackTime != 0) { 735 mShutterToPictureDisplayedTime = 736 mPostViewPictureCallbackTime - mShutterCallbackTime; 737 mPictureDisplayedToJpegCallbackTime = 738 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 739 } else { 740 mShutterToPictureDisplayedTime = 741 mRawPictureCallbackTime - mShutterCallbackTime; 742 mPictureDisplayedToJpegCallbackTime = 743 mJpegPictureCallbackTime - mRawPictureCallbackTime; 744 } 745 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 746 + mPictureDisplayedToJpegCallbackTime + "ms"); 747 748 if (!mIsImageCaptureIntent) { 749 startPreview(); 750 startFaceDetection(); 751 } 752 753 if (!mIsImageCaptureIntent) { 754 Size s = mParameters.getPictureSize(); 755 mImageSaver.addImage(jpegData, mLocation, s.width, s.height); 756 } else { 757 mJpegImageData = jpegData; 758 if (!mQuickCapture) { 759 showPostCaptureAlert(); 760 } else { 761 doAttach(); 762 } 763 } 764 765 // Check this in advance of each shot so we don't add to shutter 766 // latency. It's true that someone else could write to the SD card in 767 // the mean time and fill it, but that could have happened between the 768 // shutter press and saving the JPEG too. 769 checkStorage(); 770 771 long now = System.currentTimeMillis(); 772 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 773 Log.v(TAG, "mJpegCallbackFinishTime = " 774 + mJpegCallbackFinishTime + "ms"); 775 mJpegPictureCallbackTime = 0; 776 } 777 } 778 779 private final class AutoFocusCallback 780 implements android.hardware.Camera.AutoFocusCallback { 781 public void onAutoFocus( 782 boolean focused, android.hardware.Camera camera) { 783 if (mPausing) return; 784 785 mAutoFocusTime = System.currentTimeMillis() - mFocusStartTime; 786 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 787 setCameraState(IDLE); 788 mFocusManager.onAutoFocus(focused); 789 } 790 } 791 792 private final class ZoomListener 793 implements android.hardware.Camera.OnZoomChangeListener { 794 @Override 795 public void onZoomChange( 796 int value, boolean stopped, android.hardware.Camera camera) { 797 Log.v(TAG, "Zoom changed: value=" + value + ". stopped=" + stopped); 798 mZoomValue = value; 799 800 // Update the UI when we get zoom value. 801 mZoomControl.setZoomIndex(value); 802 803 // Keep mParameters up to date. We do not getParameter again in 804 // takePicture. If we do not do this, wrong zoom value will be set. 805 mParameters.setZoom(value); 806 807 if (stopped && mZoomState != ZOOM_STOPPED) { 808 if (mTargetZoomValue != -1 && value != mTargetZoomValue) { 809 mCameraDevice.startSmoothZoom(mTargetZoomValue); 810 mZoomState = ZOOM_START; 811 } else { 812 mZoomState = ZOOM_STOPPED; 813 } 814 } 815 } 816 } 817 818 // Each SaveRequest remembers the data needed to save an image. 819 private static class SaveRequest { 820 byte[] data; 821 Location loc; 822 int width, height; 823 long dateTaken; 824 int previewWidth; 825 } 826 827 // We use a queue to store the SaveRequests that have not been completed 828 // yet. The main thread puts the request into the queue. The saver thread 829 // gets it from the queue, does the work, and removes it from the queue. 830 // 831 // There are several cases the main thread needs to wait for the saver 832 // thread to finish all the work in the queue: 833 // (1) When the activity's onPause() is called, we need to finish all the 834 // work, so other programs (like Gallery) can see all the images. 835 // (2) When we need to show the SharePop, we need to finish all the work 836 // too, because we want to show the thumbnail of the last image taken. 837 // 838 // If the queue becomes too long, adding a new request will block the main 839 // thread until the queue length drops below the threshold (QUEUE_LIMIT). 840 // If we don't do this, we may face several problems: (1) We may OOM 841 // because we are holding all the jpeg data in memory. (2) We may ANR 842 // when we need to wait for saver thread finishing all the work (in 843 // onPause() or showSharePopup()) because the time to finishing a long queue 844 // of work may be too long. 845 private class ImageSaver extends Thread { 846 private static final int QUEUE_LIMIT = 3; 847 848 private ArrayList<SaveRequest> mQueue; 849 private Thumbnail mPendingThumbnail; 850 private Object mUpdateThumbnailLock = new Object(); 851 private boolean mStop; 852 853 // Runs in main thread 854 public ImageSaver() { 855 mQueue = new ArrayList<SaveRequest>(); 856 start(); 857 } 858 859 // Runs in main thread 860 public void addImage(final byte[] data, Location loc, int width, 861 int height) { 862 SaveRequest r = new SaveRequest(); 863 r.data = data; 864 r.loc = (loc == null) ? null : new Location(loc); // make a copy 865 r.width = width; 866 r.height = height; 867 r.dateTaken = System.currentTimeMillis(); 868 if (getRequestedOrientation() == ActivityInfo.SCREEN_ORIENTATION_PORTRAIT) { 869 r.previewWidth = mPreviewFrameLayout.getHeight(); 870 } else { 871 r.previewWidth = mPreviewFrameLayout.getWidth(); 872 } 873 synchronized (this) { 874 while (mQueue.size() >= QUEUE_LIMIT) { 875 try { 876 wait(); 877 } catch (InterruptedException ex) { 878 // ignore. 879 } 880 } 881 mQueue.add(r); 882 notifyAll(); // Tell saver thread there is new work to do. 883 } 884 } 885 886 // Runs in saver thread 887 @Override 888 public void run() { 889 while (true) { 890 SaveRequest r; 891 synchronized (this) { 892 if (mQueue.isEmpty()) { 893 notifyAll(); // notify main thread in waitDone 894 895 // Note that we can only stop after we saved all images 896 // in the queue. 897 if (mStop) break; 898 899 try { 900 wait(); 901 } catch (InterruptedException ex) { 902 // ignore. 903 } 904 continue; 905 } 906 r = mQueue.get(0); 907 } 908 storeImage(r.data, r.loc, r.width, r.height, r.dateTaken, 909 r.previewWidth); 910 synchronized(this) { 911 mQueue.remove(0); 912 notifyAll(); // the main thread may wait in addImage 913 } 914 } 915 } 916 917 // Runs in main thread 918 public void waitDone() { 919 synchronized (this) { 920 while (!mQueue.isEmpty()) { 921 try { 922 wait(); 923 } catch (InterruptedException ex) { 924 // ignore. 925 } 926 } 927 } 928 updateThumbnail(); 929 } 930 931 // Runs in main thread 932 public void finish() { 933 waitDone(); 934 synchronized (this) { 935 mStop = true; 936 notifyAll(); 937 } 938 try { 939 join(); 940 } catch (InterruptedException ex) { 941 // ignore. 942 } 943 } 944 945 // Runs in main thread (because we need to update mThumbnailView in the 946 // main thread) 947 public void updateThumbnail() { 948 Thumbnail t; 949 synchronized (mUpdateThumbnailLock) { 950 mHandler.removeMessages(UPDATE_THUMBNAIL); 951 t = mPendingThumbnail; 952 mPendingThumbnail = null; 953 } 954 955 if (t != null) { 956 mThumbnail = t; 957 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 958 } 959 // Share popup may still have the reference to the old thumbnail. Clear it. 960 mSharePopup = null; 961 } 962 963 // Runs in saver thread 964 private void storeImage(final byte[] data, Location loc, int width, 965 int height, long dateTaken, int previewWidth) { 966 String title = Util.createJpegName(dateTaken); 967 int orientation = Exif.getOrientation(data); 968 Uri uri = Storage.addImage(mContentResolver, title, dateTaken, 969 loc, orientation, data, width, height); 970 if (uri != null) { 971 boolean needThumbnail; 972 synchronized (this) { 973 // If the number of requests in the queue (include the 974 // current one) is greater than 1, we don't need to generate 975 // thumbnail for this image. Because we'll soon replace it 976 // with the thumbnail for some image later in the queue. 977 needThumbnail = (mQueue.size() <= 1); 978 } 979 if (needThumbnail) { 980 // Create a thumbnail whose width is equal or bigger than 981 // that of the preview. 982 int ratio = (int) Math.ceil((double) width / previewWidth); 983 int inSampleSize = Integer.highestOneBit(ratio); 984 Thumbnail t = Thumbnail.createThumbnail( 985 data, orientation, inSampleSize, uri); 986 synchronized (mUpdateThumbnailLock) { 987 // We need to update the thumbnail in the main thread, 988 // so send a message to run updateThumbnail(). 989 mPendingThumbnail = t; 990 mHandler.sendEmptyMessage(UPDATE_THUMBNAIL); 991 } 992 } 993 Util.broadcastNewPicture(Camera.this, uri); 994 } 995 } 996 } 997 998 private void setCameraState(int state) { 999 mCameraState = state; 1000 switch (state) { 1001 case SNAPSHOT_IN_PROGRESS: 1002 case FOCUSING: 1003 enableCameraControls(false); 1004 break; 1005 case IDLE: 1006 case PREVIEW_STOPPED: 1007 enableCameraControls(true); 1008 break; 1009 } 1010 } 1011 1012 @Override 1013 public boolean capture() { 1014 // If we are already in the middle of taking a snapshot then ignore. 1015 if (mCameraState == SNAPSHOT_IN_PROGRESS || mCameraDevice == null) { 1016 return false; 1017 } 1018 mCaptureStartTime = System.currentTimeMillis(); 1019 mPostViewPictureCallbackTime = 0; 1020 mJpegImageData = null; 1021 1022 // Set rotation and gps data. 1023 Util.setRotationParameter(mParameters, mCameraId, mOrientation); 1024 Location loc = mLocationManager.getCurrentLocation(); 1025 Util.setGpsParameters(mParameters, loc); 1026 mCameraDevice.setParameters(mParameters); 1027 1028 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 1029 mPostViewPictureCallback, new JpegPictureCallback(loc)); 1030 mFaceDetectionStarted = false; 1031 setCameraState(SNAPSHOT_IN_PROGRESS); 1032 return true; 1033 } 1034 1035 @Override 1036 public void setFocusParameters() { 1037 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1038 } 1039 1040 private boolean saveDataToFile(String filePath, byte[] data) { 1041 FileOutputStream f = null; 1042 try { 1043 f = new FileOutputStream(filePath); 1044 f.write(data); 1045 } catch (IOException e) { 1046 return false; 1047 } finally { 1048 Util.closeSilently(f); 1049 } 1050 return true; 1051 } 1052 1053 private void getPreferredCameraId() { 1054 mPreferences = new ComboPreferences(this); 1055 CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal()); 1056 mCameraId = CameraSettings.readPreferredCameraId(mPreferences); 1057 1058 // Testing purpose. Launch a specific camera through the intent extras. 1059 int intentCameraId = Util.getCameraFacingIntentExtras(this); 1060 if (intentCameraId != -1) { 1061 mCameraId = intentCameraId; 1062 } 1063 } 1064 1065 Thread mCameraOpenThread = new Thread(new Runnable() { 1066 public void run() { 1067 try { 1068 mCameraDevice = Util.openCamera(Camera.this, mCameraId); 1069 } catch (CameraHardwareException e) { 1070 mOpenCameraFail = true; 1071 } catch (CameraDisabledException e) { 1072 mCameraDisabled = true; 1073 } 1074 } 1075 }); 1076 1077 Thread mCameraPreviewThread = new Thread(new Runnable() { 1078 public void run() { 1079 initializeCapabilities(); 1080 startPreview(); 1081 } 1082 }); 1083 1084 @Override 1085 public void onCreate(Bundle icicle) { 1086 super.onCreate(icicle); 1087 getPreferredCameraId(); 1088 String[] defaultFocusModes = getResources().getStringArray( 1089 R.array.pref_camera_focusmode_default_array); 1090 mFocusManager = new FocusManager(mPreferences, defaultFocusModes); 1091 1092 /* 1093 * To reduce startup time, we start the camera open and preview threads. 1094 * We make sure the preview is started at the end of onCreate. 1095 */ 1096 mCameraOpenThread.start(); 1097 1098 mIsImageCaptureIntent = isImageCaptureIntent(); 1099 setContentView(R.layout.camera); 1100 if (mIsImageCaptureIntent) { 1101 mReviewDoneButton = (Rotatable) findViewById(R.id.btn_done); 1102 mReviewCancelButton = (Rotatable) findViewById(R.id.btn_cancel); 1103 findViewById(R.id.btn_cancel).setVisibility(View.VISIBLE); 1104 } else { 1105 mThumbnailView = (RotateImageView) findViewById(R.id.thumbnail); 1106 mThumbnailView.enableFilter(false); 1107 mThumbnailView.setVisibility(View.VISIBLE); 1108 } 1109 1110 mRotateDialog = new RotateDialogController(this, R.layout.rotate_dialog); 1111 1112 mPreferences.setLocalId(this, mCameraId); 1113 CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); 1114 1115 mNumberOfCameras = CameraHolder.instance().getNumberOfCameras(); 1116 mQuickCapture = getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false); 1117 1118 // we need to reset exposure for the preview 1119 resetExposureCompensation(); 1120 1121 Util.enterLightsOutMode(getWindow()); 1122 1123 // don't set mSurfaceHolder here. We have it set ONLY within 1124 // surfaceChanged / surfaceDestroyed, other parts of the code 1125 // assume that when it is set, the surface is also set. 1126 SurfaceView preview = (SurfaceView) findViewById(R.id.camera_preview); 1127 SurfaceHolder holder = preview.getHolder(); 1128 holder.addCallback(this); 1129 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 1130 1131 // Make sure camera device is opened. 1132 try { 1133 mCameraOpenThread.join(); 1134 mCameraOpenThread = null; 1135 if (mOpenCameraFail) { 1136 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1137 return; 1138 } else if (mCameraDisabled) { 1139 Util.showErrorAndFinish(this, R.string.camera_disabled); 1140 return; 1141 } 1142 } catch (InterruptedException ex) { 1143 // ignore 1144 } 1145 mCameraPreviewThread.start(); 1146 1147 if (mIsImageCaptureIntent) { 1148 setupCaptureParams(); 1149 } else { 1150 mModePicker = (ModePicker) findViewById(R.id.mode_picker); 1151 mModePicker.setVisibility(View.VISIBLE); 1152 mModePicker.setOnModeChangeListener(this); 1153 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 1154 } 1155 1156 mZoomControl = (ZoomControl) findViewById(R.id.zoom_control); 1157 mLocationManager = new LocationManager(this, this); 1158 1159 mBackCameraId = CameraHolder.instance().getBackCameraId(); 1160 mFrontCameraId = CameraHolder.instance().getFrontCameraId(); 1161 1162 // Wait until the camera settings are retrieved. 1163 synchronized (mCameraPreviewThread) { 1164 try { 1165 mCameraPreviewThread.wait(); 1166 } catch (InterruptedException ex) { 1167 // ignore 1168 } 1169 } 1170 1171 // Do this after starting preview because it depends on camera 1172 // parameters. 1173 initializeIndicatorControl(); 1174 1175 // Make sure preview is started. 1176 try { 1177 mCameraPreviewThread.join(); 1178 } catch (InterruptedException ex) { 1179 // ignore 1180 } 1181 mCameraPreviewThread = null; 1182 } 1183 1184 private void overrideCameraSettings(final String flashMode, 1185 final String whiteBalance, final String focusMode) { 1186 if (mIndicatorControlContainer != null) { 1187 mIndicatorControlContainer.overrideSettings( 1188 CameraSettings.KEY_FLASH_MODE, flashMode, 1189 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 1190 CameraSettings.KEY_FOCUS_MODE, focusMode); 1191 } 1192 } 1193 1194 private void updateSceneModeUI() { 1195 // If scene mode is set, we cannot set flash mode, white balance, and 1196 // focus mode, instead, we read it from driver 1197 if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1198 overrideCameraSettings(mParameters.getFlashMode(), 1199 mParameters.getWhiteBalance(), mParameters.getFocusMode()); 1200 } else { 1201 overrideCameraSettings(null, null, null); 1202 } 1203 } 1204 1205 private void loadCameraPreferences() { 1206 CameraSettings settings = new CameraSettings(this, mInitialParams, 1207 mCameraId, CameraHolder.instance().getCameraInfo()); 1208 mPreferenceGroup = settings.getPreferenceGroup(R.xml.camera_preferences); 1209 } 1210 1211 private void initializeIndicatorControl() { 1212 // setting the indicator buttons. 1213 mIndicatorControlContainer = 1214 (IndicatorControlContainer) findViewById(R.id.indicator_control); 1215 if (mIndicatorControlContainer == null) return; 1216 loadCameraPreferences(); 1217 final String[] SETTING_KEYS = { 1218 CameraSettings.KEY_FLASH_MODE, 1219 CameraSettings.KEY_WHITE_BALANCE, 1220 CameraSettings.KEY_EXPOSURE, 1221 CameraSettings.KEY_SCENE_MODE}; 1222 final String[] OTHER_SETTING_KEYS = { 1223 CameraSettings.KEY_RECORD_LOCATION, 1224 CameraSettings.KEY_PICTURE_SIZE, 1225 CameraSettings.KEY_FOCUS_MODE}; 1226 1227 CameraPicker.setImageResourceId(R.drawable.ic_switch_photo_facing_holo_light); 1228 mIndicatorControlContainer.initialize(this, mPreferenceGroup, 1229 mParameters.isZoomSupported(), 1230 SETTING_KEYS, OTHER_SETTING_KEYS); 1231 updateSceneModeUI(); 1232 mIndicatorControlContainer.setListener(this); 1233 } 1234 1235 private boolean collapseCameraControls() { 1236 if ((mIndicatorControlContainer != null) 1237 && mIndicatorControlContainer.dismissSettingPopup()) { 1238 return true; 1239 } 1240 return false; 1241 } 1242 1243 private void enableCameraControls(boolean enable) { 1244 if (mIndicatorControlContainer != null) { 1245 mIndicatorControlContainer.setEnabled(enable); 1246 } 1247 if (mModePicker != null) mModePicker.setEnabled(enable); 1248 if (mZoomControl != null) mZoomControl.setEnabled(enable); 1249 if (mThumbnailView != null) mThumbnailView.setEnabled(enable); 1250 } 1251 1252 private class MyOrientationEventListener 1253 extends OrientationEventListener { 1254 public MyOrientationEventListener(Context context) { 1255 super(context); 1256 } 1257 1258 @Override 1259 public void onOrientationChanged(int orientation) { 1260 // We keep the last known orientation. So if the user first orient 1261 // the camera then point the camera to floor or sky, we still have 1262 // the correct orientation. 1263 if (orientation == ORIENTATION_UNKNOWN) return; 1264 mOrientation = Util.roundOrientation(orientation, mOrientation); 1265 // When the screen is unlocked, display rotation may change. Always 1266 // calculate the up-to-date orientationCompensation. 1267 int orientationCompensation = mOrientation 1268 + Util.getDisplayRotation(Camera.this); 1269 if (mOrientationCompensation != orientationCompensation) { 1270 mOrientationCompensation = orientationCompensation; 1271 setOrientationIndicator(mOrientationCompensation); 1272 } 1273 1274 // Show the toast after getting the first orientation changed. 1275 if (mHandler.hasMessages(SHOW_TAP_TO_FOCUS_TOAST)) { 1276 mHandler.removeMessages(SHOW_TAP_TO_FOCUS_TOAST); 1277 showTapToFocusToast(); 1278 } 1279 } 1280 } 1281 1282 private void setOrientationIndicator(int orientation) { 1283 Rotatable[] indicators = {mThumbnailView, mModePicker, mSharePopup, 1284 mIndicatorControlContainer, mZoomControl, mFocusAreaIndicator, mFaceView, 1285 mReviewCancelButton, mReviewDoneButton, mRotateDialog}; 1286 for (Rotatable indicator : indicators) { 1287 if (indicator != null) indicator.setOrientation(orientation); 1288 } 1289 } 1290 1291 @Override 1292 public void onStop() { 1293 super.onStop(); 1294 if (mMediaProviderClient != null) { 1295 mMediaProviderClient.release(); 1296 mMediaProviderClient = null; 1297 } 1298 } 1299 1300 private void checkStorage() { 1301 mPicturesRemaining = Storage.getAvailableSpace(); 1302 if (mPicturesRemaining > Storage.LOW_STORAGE_THRESHOLD) { 1303 mPicturesRemaining = (mPicturesRemaining - Storage.LOW_STORAGE_THRESHOLD) 1304 / Storage.PICTURE_SIZE; 1305 } else if (mPicturesRemaining > 0) { 1306 mPicturesRemaining = 0; 1307 } 1308 1309 updateStorageHint(); 1310 } 1311 1312 @OnClickAttr 1313 public void onThumbnailClicked(View v) { 1314 if (isCameraIdle() && mThumbnail != null) { 1315 showSharePopup(); 1316 } 1317 } 1318 1319 @OnClickAttr 1320 public void onReviewRetakeClicked(View v) { 1321 hidePostCaptureAlert(); 1322 startPreview(); 1323 startFaceDetection(); 1324 } 1325 1326 @OnClickAttr 1327 public void onReviewDoneClicked(View v) { 1328 doAttach(); 1329 } 1330 1331 @OnClickAttr 1332 public void onReviewCancelClicked(View v) { 1333 doCancel(); 1334 } 1335 1336 private void doAttach() { 1337 if (mPausing) { 1338 return; 1339 } 1340 1341 byte[] data = mJpegImageData; 1342 1343 if (mCropValue == null) { 1344 // First handle the no crop case -- just return the value. If the 1345 // caller specifies a "save uri" then write the data to it's 1346 // stream. Otherwise, pass back a scaled down version of the bitmap 1347 // directly in the extras. 1348 if (mSaveUri != null) { 1349 OutputStream outputStream = null; 1350 try { 1351 outputStream = mContentResolver.openOutputStream(mSaveUri); 1352 outputStream.write(data); 1353 outputStream.close(); 1354 1355 setResultEx(RESULT_OK); 1356 finish(); 1357 } catch (IOException ex) { 1358 // ignore exception 1359 } finally { 1360 Util.closeSilently(outputStream); 1361 } 1362 } else { 1363 int orientation = Exif.getOrientation(data); 1364 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1365 bitmap = Util.rotate(bitmap, orientation); 1366 setResultEx(RESULT_OK, 1367 new Intent("inline-data").putExtra("data", bitmap)); 1368 finish(); 1369 } 1370 } else { 1371 // Save the image to a temp file and invoke the cropper 1372 Uri tempUri = null; 1373 FileOutputStream tempStream = null; 1374 try { 1375 File path = getFileStreamPath(sTempCropFilename); 1376 path.delete(); 1377 tempStream = openFileOutput(sTempCropFilename, 0); 1378 tempStream.write(data); 1379 tempStream.close(); 1380 tempUri = Uri.fromFile(path); 1381 } catch (FileNotFoundException ex) { 1382 setResultEx(Activity.RESULT_CANCELED); 1383 finish(); 1384 return; 1385 } catch (IOException ex) { 1386 setResultEx(Activity.RESULT_CANCELED); 1387 finish(); 1388 return; 1389 } finally { 1390 Util.closeSilently(tempStream); 1391 } 1392 1393 Bundle newExtras = new Bundle(); 1394 if (mCropValue.equals("circle")) { 1395 newExtras.putString("circleCrop", "true"); 1396 } 1397 if (mSaveUri != null) { 1398 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1399 } else { 1400 newExtras.putBoolean("return-data", true); 1401 } 1402 1403 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1404 1405 cropIntent.setData(tempUri); 1406 cropIntent.putExtras(newExtras); 1407 1408 startActivityForResult(cropIntent, CROP_MSG); 1409 } 1410 } 1411 1412 private void doCancel() { 1413 setResultEx(RESULT_CANCELED, new Intent()); 1414 finish(); 1415 } 1416 1417 @Override 1418 public void onShutterButtonFocus(boolean pressed) { 1419 if (mPausing || collapseCameraControls() || mCameraState == SNAPSHOT_IN_PROGRESS) return; 1420 1421 // Do not do focus if there is not enough storage. 1422 if (pressed && !canTakePicture()) return; 1423 1424 if (pressed) { 1425 mFocusManager.onShutterDown(); 1426 } else { 1427 mFocusManager.onShutterUp(); 1428 } 1429 } 1430 1431 @Override 1432 public void onShutterButtonClick() { 1433 if (mPausing || collapseCameraControls()) return; 1434 1435 // Do not take the picture if there is not enough storage. 1436 if (mPicturesRemaining <= 0) { 1437 Log.i(TAG, "Not enough space or storage not ready. remaining=" + mPicturesRemaining); 1438 return; 1439 } 1440 1441 Log.v(TAG, "onShutterButtonClick: mCameraState=" + mCameraState); 1442 1443 // If the user wants to do a snapshot while the previous one is still 1444 // in progress, remember the fact and do it after we finish the previous 1445 // one and re-start the preview. Snapshot in progress also includes the 1446 // state that autofocus is focusing and a picture will be taken when 1447 // focus callback arrives. 1448 if (mFocusManager.isFocusingSnapOnFinish() || mCameraState == SNAPSHOT_IN_PROGRESS) { 1449 mSnapshotOnIdle = true; 1450 return; 1451 } 1452 1453 mSnapshotOnIdle = false; 1454 mFocusManager.doSnap(); 1455 } 1456 1457 private OnScreenHint mStorageHint; 1458 1459 private void updateStorageHint() { 1460 String noStorageText = null; 1461 1462 if (mPicturesRemaining == Storage.UNAVAILABLE) { 1463 noStorageText = getString(R.string.no_storage); 1464 } else if (mPicturesRemaining == Storage.PREPARING) { 1465 noStorageText = getString(R.string.preparing_sd); 1466 } else if (mPicturesRemaining == Storage.UNKNOWN_SIZE) { 1467 noStorageText = getString(R.string.access_sd_fail); 1468 } else if (mPicturesRemaining < 1L) { 1469 noStorageText = getString(R.string.not_enough_space); 1470 } 1471 1472 if (noStorageText != null) { 1473 if (mStorageHint == null) { 1474 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1475 } else { 1476 mStorageHint.setText(noStorageText); 1477 } 1478 mStorageHint.show(); 1479 } else if (mStorageHint != null) { 1480 mStorageHint.cancel(); 1481 mStorageHint = null; 1482 } 1483 } 1484 1485 private void installIntentFilter() { 1486 // install an intent filter to receive SD card related events. 1487 IntentFilter intentFilter = 1488 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1489 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1490 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1491 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1492 intentFilter.addDataScheme("file"); 1493 registerReceiver(mReceiver, intentFilter); 1494 mDidRegister = true; 1495 } 1496 1497 @Override 1498 protected void doOnResume() { 1499 if (mOpenCameraFail || mCameraDisabled) return; 1500 1501 mPausing = false; 1502 mJpegPictureCallbackTime = 0; 1503 mZoomValue = 0; 1504 1505 // Start the preview if it is not started. 1506 if (mCameraState == PREVIEW_STOPPED) { 1507 try { 1508 mCameraDevice = Util.openCamera(this, mCameraId); 1509 initializeCapabilities(); 1510 resetExposureCompensation(); 1511 startPreview(); 1512 startFaceDetection(); 1513 } catch (CameraHardwareException e) { 1514 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1515 return; 1516 } catch (CameraDisabledException e) { 1517 Util.showErrorAndFinish(this, R.string.camera_disabled); 1518 return; 1519 } 1520 } 1521 1522 if (mSurfaceHolder != null) { 1523 // If first time initialization is not finished, put it in the 1524 // message queue. 1525 if (!mFirstTimeInitialized) { 1526 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1527 } else { 1528 initializeSecondTime(); 1529 } 1530 } 1531 keepScreenOnAwhile(); 1532 1533 if (mCameraState == IDLE) { 1534 mOnResumeTime = SystemClock.uptimeMillis(); 1535 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 1536 } 1537 } 1538 1539 @Override 1540 protected void onPause() { 1541 mPausing = true; 1542 stopPreview(); 1543 // Close the camera now because other activities may need to use it. 1544 closeCamera(); 1545 resetScreenOn(); 1546 1547 // Clear UI. 1548 collapseCameraControls(); 1549 if (mSharePopup != null) mSharePopup.dismiss(); 1550 if (mFaceView != null) mFaceView.clear(); 1551 1552 if (mFirstTimeInitialized) { 1553 mOrientationListener.disable(); 1554 if (mImageSaver != null) { 1555 mImageSaver.finish(); 1556 mImageSaver = null; 1557 } 1558 if (!mIsImageCaptureIntent && mThumbnail != null && !mThumbnail.fromFile()) { 1559 mThumbnail.saveTo(new File(getFilesDir(), Thumbnail.LAST_THUMB_FILENAME)); 1560 } 1561 } 1562 1563 if (mDidRegister) { 1564 unregisterReceiver(mReceiver); 1565 mDidRegister = false; 1566 } 1567 if (mLocationManager != null) mLocationManager.recordLocation(false); 1568 updateExposureOnScreenIndicator(0); 1569 1570 mFocusManager.releaseSoundPlayer(); 1571 1572 if (mStorageHint != null) { 1573 mStorageHint.cancel(); 1574 mStorageHint = null; 1575 } 1576 1577 // If we are in an image capture intent and has taken 1578 // a picture, we just clear it in onPause. 1579 mJpegImageData = null; 1580 1581 // Remove the messages in the event queue. 1582 mHandler.removeMessages(FIRST_TIME_INIT); 1583 mHandler.removeMessages(CHECK_DISPLAY_ROTATION); 1584 mFocusManager.removeMessages(); 1585 1586 super.onPause(); 1587 } 1588 1589 @Override 1590 protected void onActivityResult( 1591 int requestCode, int resultCode, Intent data) { 1592 switch (requestCode) { 1593 case CROP_MSG: { 1594 Intent intent = new Intent(); 1595 if (data != null) { 1596 Bundle extras = data.getExtras(); 1597 if (extras != null) { 1598 intent.putExtras(extras); 1599 } 1600 } 1601 setResultEx(resultCode, intent); 1602 finish(); 1603 1604 File path = getFileStreamPath(sTempCropFilename); 1605 path.delete(); 1606 1607 break; 1608 } 1609 } 1610 } 1611 1612 private boolean canTakePicture() { 1613 return isCameraIdle() && (mPicturesRemaining > 0); 1614 } 1615 1616 @Override 1617 public void autoFocus() { 1618 mFocusStartTime = System.currentTimeMillis(); 1619 mCameraDevice.autoFocus(mAutoFocusCallback); 1620 setCameraState(FOCUSING); 1621 } 1622 1623 @Override 1624 public void cancelAutoFocus() { 1625 mCameraDevice.cancelAutoFocus(); 1626 setCameraState(IDLE); 1627 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1628 } 1629 1630 // Preview area is touched. Handle touch focus. 1631 @Override 1632 public boolean onTouch(View v, MotionEvent e) { 1633 if (mPausing || mCameraDevice == null || !mFirstTimeInitialized 1634 || mCameraState == SNAPSHOT_IN_PROGRESS) { 1635 return false; 1636 } 1637 1638 // Do not trigger touch focus if popup window is opened. 1639 if (collapseCameraControls()) return false; 1640 1641 // Check if metering area or focus area is supported. 1642 if (!mFocusAreaSupported && !mMeteringAreaSupported) return false; 1643 1644 return mFocusManager.onTouch(e); 1645 } 1646 1647 @Override 1648 public void onBackPressed() { 1649 if (!isCameraIdle()) { 1650 // ignore backs while we're taking a picture 1651 return; 1652 } else if (!collapseCameraControls()) { 1653 super.onBackPressed(); 1654 } 1655 } 1656 1657 @Override 1658 public boolean onKeyDown(int keyCode, KeyEvent event) { 1659 switch (keyCode) { 1660 case KeyEvent.KEYCODE_FOCUS: 1661 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1662 onShutterButtonFocus(true); 1663 } 1664 return true; 1665 case KeyEvent.KEYCODE_CAMERA: 1666 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1667 onShutterButtonClick(); 1668 } 1669 return true; 1670 case KeyEvent.KEYCODE_DPAD_CENTER: 1671 // If we get a dpad center event without any focused view, move 1672 // the focus to the shutter button and press it. 1673 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1674 // Start auto-focus immediately to reduce shutter lag. After 1675 // the shutter button gets the focus, onShutterButtonFocus() 1676 // will be called again but it is fine. 1677 if (collapseCameraControls()) return true; 1678 onShutterButtonFocus(true); 1679 if (mShutterButton.isInTouchMode()) { 1680 mShutterButton.requestFocusFromTouch(); 1681 } else { 1682 mShutterButton.requestFocus(); 1683 } 1684 mShutterButton.setPressed(true); 1685 } 1686 return true; 1687 } 1688 1689 return super.onKeyDown(keyCode, event); 1690 } 1691 1692 @Override 1693 public boolean onKeyUp(int keyCode, KeyEvent event) { 1694 switch (keyCode) { 1695 case KeyEvent.KEYCODE_FOCUS: 1696 if (mFirstTimeInitialized) { 1697 onShutterButtonFocus(false); 1698 } 1699 return true; 1700 } 1701 return super.onKeyUp(keyCode, event); 1702 } 1703 1704 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1705 // Make sure we have a surface in the holder before proceeding. 1706 if (holder.getSurface() == null) { 1707 Log.d(TAG, "holder.getSurface() == null"); 1708 return; 1709 } 1710 1711 Log.v(TAG, "surfaceChanged. w=" + w + ". h=" + h); 1712 1713 // We need to save the holder for later use, even when the mCameraDevice 1714 // is null. This could happen if onResume() is invoked after this 1715 // function. 1716 mSurfaceHolder = holder; 1717 1718 // The mCameraDevice will be null if it fails to connect to the camera 1719 // hardware. In this case we will show a dialog and then finish the 1720 // activity, so it's OK to ignore it. 1721 if (mCameraDevice == null) return; 1722 1723 // Sometimes surfaceChanged is called after onPause or before onResume. 1724 // Ignore it. 1725 if (mPausing || isFinishing()) return; 1726 1727 // Set preview display if the surface is being created. Preview was 1728 // already started. Also restart the preview if display rotation has 1729 // changed. Sometimes this happens when the device is held in portrait 1730 // and camera app is opened. Rotation animation takes some time and 1731 // display rotation in onCreate may not be what we want. 1732 if (mCameraState == PREVIEW_STOPPED) { 1733 startPreview(); 1734 startFaceDetection(); 1735 } else { 1736 if (Util.getDisplayRotation(this) != mDisplayRotation) { 1737 setDisplayOrientation(); 1738 } 1739 if (holder.isCreating()) { 1740 // Set preview display if the surface is being created and preview 1741 // was already started. That means preview display was set to null 1742 // and we need to set it now. 1743 setPreviewDisplay(holder); 1744 } 1745 } 1746 1747 // If first time initialization is not finished, send a message to do 1748 // it later. We want to finish surfaceChanged as soon as possible to let 1749 // user see preview first. 1750 if (!mFirstTimeInitialized) { 1751 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1752 } else { 1753 initializeSecondTime(); 1754 } 1755 } 1756 1757 public void surfaceCreated(SurfaceHolder holder) { 1758 } 1759 1760 public void surfaceDestroyed(SurfaceHolder holder) { 1761 stopPreview(); 1762 mSurfaceHolder = null; 1763 } 1764 1765 private void closeCamera() { 1766 if (mCameraDevice != null) { 1767 CameraHolder.instance().release(); 1768 mFaceDetectionStarted = false; 1769 mCameraDevice.setZoomChangeListener(null); 1770 mCameraDevice.setFaceDetectionListener(null); 1771 mCameraDevice.setErrorCallback(null); 1772 mCameraDevice = null; 1773 setCameraState(PREVIEW_STOPPED); 1774 mFocusManager.onCameraReleased(); 1775 } 1776 } 1777 1778 private void setPreviewDisplay(SurfaceHolder holder) { 1779 try { 1780 mCameraDevice.setPreviewDisplay(holder); 1781 } catch (Throwable ex) { 1782 closeCamera(); 1783 throw new RuntimeException("setPreviewDisplay failed", ex); 1784 } 1785 } 1786 1787 private void setDisplayOrientation() { 1788 mDisplayRotation = Util.getDisplayRotation(this); 1789 mDisplayOrientation = Util.getDisplayOrientation(mDisplayRotation, mCameraId); 1790 mCameraDevice.setDisplayOrientation(mDisplayOrientation); 1791 if (mFaceView != null) { 1792 mFaceView.setDisplayOrientation(mDisplayOrientation); 1793 } 1794 } 1795 1796 private void startPreview() { 1797 if (mPausing || isFinishing()) return; 1798 1799 mFocusManager.resetTouchFocus(); 1800 1801 mCameraDevice.setErrorCallback(mErrorCallback); 1802 1803 // If we're previewing already, stop the preview first (this will blank 1804 // the screen). 1805 if (mCameraState != PREVIEW_STOPPED) stopPreview(); 1806 1807 setPreviewDisplay(mSurfaceHolder); 1808 setDisplayOrientation(); 1809 1810 if (!mSnapshotOnIdle) { 1811 // If the focus mode is continuous autofocus, call cancelAutoFocus to 1812 // resume it because it may have been paused by autoFocus call. 1813 if (Parameters.FOCUS_MODE_CONTINUOUS_PICTURE.equals(mFocusManager.getFocusMode())) { 1814 mCameraDevice.cancelAutoFocus(); 1815 } 1816 mFocusManager.setAeAwbLock(false); // Unlock AE and AWB. 1817 } 1818 setCameraParameters(UPDATE_PARAM_ALL); 1819 1820 // Inform the mainthread to go on the UI initialization. 1821 if (mCameraPreviewThread != null) { 1822 synchronized (mCameraPreviewThread) { 1823 mCameraPreviewThread.notify(); 1824 } 1825 } 1826 1827 try { 1828 Log.v(TAG, "startPreview"); 1829 mCameraDevice.startPreview(); 1830 } catch (Throwable ex) { 1831 closeCamera(); 1832 throw new RuntimeException("startPreview failed", ex); 1833 } 1834 1835 mZoomState = ZOOM_STOPPED; 1836 setCameraState(IDLE); 1837 mFocusManager.onPreviewStarted(); 1838 1839 if (mSnapshotOnIdle) { 1840 mHandler.post(mDoSnapRunnable); 1841 } 1842 } 1843 1844 private void stopPreview() { 1845 if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) { 1846 Log.v(TAG, "stopPreview"); 1847 mCameraDevice.cancelAutoFocus(); // Reset the focus. 1848 mCameraDevice.stopPreview(); 1849 mFaceDetectionStarted = false; 1850 } 1851 setCameraState(PREVIEW_STOPPED); 1852 mFocusManager.onPreviewStopped(); 1853 } 1854 1855 private static boolean isSupported(String value, List<String> supported) { 1856 return supported == null ? false : supported.indexOf(value) >= 0; 1857 } 1858 1859 private void updateCameraParametersInitialize() { 1860 // Reset preview frame rate to the maximum because it may be lowered by 1861 // video camera application. 1862 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1863 if (frameRates != null) { 1864 Integer max = Collections.max(frameRates); 1865 mParameters.setPreviewFrameRate(max); 1866 } 1867 1868 mParameters.setRecordingHint(false); 1869 1870 // Disable video stabilization. Convenience methods not available in API 1871 // level <= 14 1872 String vstabSupported = mParameters.get("video-stabilization-supported"); 1873 if ("true".equals(vstabSupported)) { 1874 mParameters.set("video-stabilization", "false"); 1875 } 1876 } 1877 1878 private void updateCameraParametersZoom() { 1879 // Set zoom. 1880 if (mParameters.isZoomSupported()) { 1881 mParameters.setZoom(mZoomValue); 1882 } 1883 } 1884 1885 private void updateCameraParametersPreference() { 1886 if (mAeLockSupported) { 1887 mParameters.setAutoExposureLock(mFocusManager.getAeAwbLock()); 1888 } 1889 1890 if (mAwbLockSupported) { 1891 mParameters.setAutoWhiteBalanceLock(mFocusManager.getAeAwbLock()); 1892 } 1893 1894 if (mFocusAreaSupported) { 1895 mParameters.setFocusAreas(mFocusManager.getFocusAreas()); 1896 } 1897 1898 if (mMeteringAreaSupported) { 1899 // Use the same area for focus and metering. 1900 mParameters.setMeteringAreas(mFocusManager.getMeteringAreas()); 1901 } 1902 1903 // Set picture size. 1904 String pictureSize = mPreferences.getString( 1905 CameraSettings.KEY_PICTURE_SIZE, null); 1906 if (pictureSize == null) { 1907 CameraSettings.initialCameraPictureSize(this, mParameters); 1908 } else { 1909 List<Size> supported = mParameters.getSupportedPictureSizes(); 1910 CameraSettings.setCameraPictureSize( 1911 pictureSize, supported, mParameters); 1912 } 1913 1914 // Set the preview frame aspect ratio according to the picture size. 1915 Size size = mParameters.getPictureSize(); 1916 1917 mPreviewPanel = findViewById(R.id.frame_layout); 1918 mPreviewFrameLayout = (PreviewFrameLayout) findViewById(R.id.frame); 1919 mPreviewFrameLayout.setAspectRatio((double) size.width / size.height); 1920 1921 // Set a preview size that is closest to the viewfinder height and has 1922 // the right aspect ratio. 1923 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1924 Size optimalSize = Util.getOptimalPreviewSize(this, 1925 sizes, (double) size.width / size.height); 1926 Size original = mParameters.getPreviewSize(); 1927 if (!original.equals(optimalSize)) { 1928 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1929 1930 // Zoom related settings will be changed for different preview 1931 // sizes, so set and read the parameters to get lastest values 1932 mCameraDevice.setParameters(mParameters); 1933 mParameters = mCameraDevice.getParameters(); 1934 } 1935 Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height); 1936 1937 // Since change scene mode may change supported values, 1938 // Set scene mode first, 1939 mSceneMode = mPreferences.getString( 1940 CameraSettings.KEY_SCENE_MODE, 1941 getString(R.string.pref_camera_scenemode_default)); 1942 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 1943 if (!mParameters.getSceneMode().equals(mSceneMode)) { 1944 mParameters.setSceneMode(mSceneMode); 1945 mCameraDevice.setParameters(mParameters); 1946 1947 // Setting scene mode will change the settings of flash mode, 1948 // white balance, and focus mode. Here we read back the 1949 // parameters, so we can know those settings. 1950 mParameters = mCameraDevice.getParameters(); 1951 } 1952 } else { 1953 mSceneMode = mParameters.getSceneMode(); 1954 if (mSceneMode == null) { 1955 mSceneMode = Parameters.SCENE_MODE_AUTO; 1956 } 1957 } 1958 1959 // Set JPEG quality. 1960 int jpegQuality = CameraProfile.getJpegEncodingQualityParameter(mCameraId, 1961 CameraProfile.QUALITY_HIGH); 1962 mParameters.setJpegQuality(jpegQuality); 1963 1964 // For the following settings, we need to check if the settings are 1965 // still supported by latest driver, if not, ignore the settings. 1966 1967 // Set exposure compensation 1968 int value = CameraSettings.readExposure(mPreferences); 1969 int max = mParameters.getMaxExposureCompensation(); 1970 int min = mParameters.getMinExposureCompensation(); 1971 if (value >= min && value <= max) { 1972 mParameters.setExposureCompensation(value); 1973 } else { 1974 Log.w(TAG, "invalid exposure range: " + value); 1975 } 1976 1977 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1978 // Set flash mode. 1979 String flashMode = mPreferences.getString( 1980 CameraSettings.KEY_FLASH_MODE, 1981 getString(R.string.pref_camera_flashmode_default)); 1982 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 1983 if (isSupported(flashMode, supportedFlash)) { 1984 mParameters.setFlashMode(flashMode); 1985 } else { 1986 flashMode = mParameters.getFlashMode(); 1987 if (flashMode == null) { 1988 flashMode = getString( 1989 R.string.pref_camera_flashmode_no_flash); 1990 } 1991 } 1992 1993 // Set white balance parameter. 1994 String whiteBalance = mPreferences.getString( 1995 CameraSettings.KEY_WHITE_BALANCE, 1996 getString(R.string.pref_camera_whitebalance_default)); 1997 if (isSupported(whiteBalance, 1998 mParameters.getSupportedWhiteBalance())) { 1999 mParameters.setWhiteBalance(whiteBalance); 2000 } else { 2001 whiteBalance = mParameters.getWhiteBalance(); 2002 if (whiteBalance == null) { 2003 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 2004 } 2005 } 2006 2007 // Set focus mode. 2008 mFocusManager.overrideFocusMode(null); 2009 mParameters.setFocusMode(mFocusManager.getFocusMode()); 2010 } else { 2011 mFocusManager.overrideFocusMode(mParameters.getFocusMode()); 2012 } 2013 } 2014 2015 // We separate the parameters into several subsets, so we can update only 2016 // the subsets actually need updating. The PREFERENCE set needs extra 2017 // locking because the preference can be changed from GLThread as well. 2018 private void setCameraParameters(int updateSet) { 2019 mParameters = mCameraDevice.getParameters(); 2020 2021 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 2022 updateCameraParametersInitialize(); 2023 } 2024 2025 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 2026 updateCameraParametersZoom(); 2027 } 2028 2029 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 2030 updateCameraParametersPreference(); 2031 } 2032 2033 mCameraDevice.setParameters(mParameters); 2034 } 2035 2036 // If the Camera is idle, update the parameters immediately, otherwise 2037 // accumulate them in mUpdateSet and update later. 2038 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 2039 mUpdateSet |= additionalUpdateSet; 2040 if (mCameraDevice == null) { 2041 // We will update all the parameters when we open the device, so 2042 // we don't need to do anything now. 2043 mUpdateSet = 0; 2044 return; 2045 } else if (isCameraIdle()) { 2046 setCameraParameters(mUpdateSet); 2047 updateSceneModeUI(); 2048 mUpdateSet = 0; 2049 } else { 2050 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 2051 mHandler.sendEmptyMessageDelayed( 2052 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 2053 } 2054 } 2055 } 2056 2057 private void gotoGallery() { 2058 MenuHelper.gotoCameraImageGallery(this); 2059 } 2060 2061 private boolean isCameraIdle() { 2062 return (mCameraState == IDLE) || (mFocusManager.isFocusCompleted()); 2063 } 2064 2065 private boolean isImageCaptureIntent() { 2066 String action = getIntent().getAction(); 2067 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 2068 } 2069 2070 private void setupCaptureParams() { 2071 Bundle myExtras = getIntent().getExtras(); 2072 if (myExtras != null) { 2073 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 2074 mCropValue = myExtras.getString("crop"); 2075 } 2076 } 2077 2078 private void showPostCaptureAlert() { 2079 if (mIsImageCaptureIntent) { 2080 Util.fadeOut(mIndicatorControlContainer); 2081 Util.fadeOut(mShutterButton); 2082 2083 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2084 for (int id : pickIds) { 2085 Util.fadeIn(findViewById(id)); 2086 } 2087 } 2088 } 2089 2090 private void hidePostCaptureAlert() { 2091 if (mIsImageCaptureIntent) { 2092 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2093 for (int id : pickIds) { 2094 Util.fadeOut(findViewById(id)); 2095 } 2096 2097 Util.fadeIn(mShutterButton); 2098 Util.fadeIn(mIndicatorControlContainer); 2099 } 2100 } 2101 2102 @Override 2103 public boolean onPrepareOptionsMenu(Menu menu) { 2104 super.onPrepareOptionsMenu(menu); 2105 // Only show the menu when camera is idle. 2106 for (int i = 0; i < menu.size(); i++) { 2107 menu.getItem(i).setVisible(isCameraIdle()); 2108 } 2109 2110 return true; 2111 } 2112 2113 @Override 2114 public boolean onCreateOptionsMenu(Menu menu) { 2115 super.onCreateOptionsMenu(menu); 2116 2117 if (mIsImageCaptureIntent) { 2118 // No options menu for attach mode. 2119 return false; 2120 } else { 2121 addBaseMenuItems(menu); 2122 } 2123 return true; 2124 } 2125 2126 private void addBaseMenuItems(Menu menu) { 2127 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_VIDEO, new Runnable() { 2128 public void run() { 2129 switchToOtherMode(ModePicker.MODE_VIDEO); 2130 } 2131 }); 2132 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_PANORAMA, new Runnable() { 2133 public void run() { 2134 switchToOtherMode(ModePicker.MODE_PANORAMA); 2135 } 2136 }); 2137 2138 if (mNumberOfCameras > 1) { 2139 menu.add(R.string.switch_camera_id) 2140 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2141 public boolean onMenuItemClick(MenuItem item) { 2142 CameraSettings.writePreferredCameraId(mPreferences, 2143 ((mCameraId == mFrontCameraId) 2144 ? mBackCameraId : mFrontCameraId)); 2145 onSharedPreferenceChanged(); 2146 return true; 2147 } 2148 }).setIcon(android.R.drawable.ic_menu_camera); 2149 } 2150 } 2151 2152 private boolean switchToOtherMode(int mode) { 2153 if (isFinishing()) return false; 2154 if (mImageSaver != null) mImageSaver.waitDone(); 2155 MenuHelper.gotoMode(mode, Camera.this); 2156 mHandler.removeMessages(FIRST_TIME_INIT); 2157 finish(); 2158 return true; 2159 } 2160 2161 public boolean onModeChanged(int mode) { 2162 if (mode != ModePicker.MODE_CAMERA) { 2163 return switchToOtherMode(mode); 2164 } else { 2165 return true; 2166 } 2167 } 2168 2169 public void onSharedPreferenceChanged() { 2170 // ignore the events after "onPause()" 2171 if (mPausing) return; 2172 2173 boolean recordLocation = RecordLocationPreference.get( 2174 mPreferences, getContentResolver()); 2175 mLocationManager.recordLocation(recordLocation); 2176 2177 int cameraId = CameraSettings.readPreferredCameraId(mPreferences); 2178 if (mCameraId != cameraId) { 2179 // Restart the activity to have a crossfade animation. 2180 // TODO: Use SurfaceTexture to implement a better and faster 2181 // animation. 2182 if (mIsImageCaptureIntent) { 2183 // If the intent is camera capture, stay in camera capture mode. 2184 MenuHelper.gotoCameraMode(this, getIntent()); 2185 } else { 2186 MenuHelper.gotoCameraMode(this); 2187 } 2188 2189 finish(); 2190 } else { 2191 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 2192 } 2193 2194 updateOnScreenIndicators(); 2195 } 2196 2197 @Override 2198 public void onUserInteraction() { 2199 super.onUserInteraction(); 2200 keepScreenOnAwhile(); 2201 } 2202 2203 private void resetScreenOn() { 2204 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2205 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2206 } 2207 2208 private void keepScreenOnAwhile() { 2209 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2210 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2211 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2212 } 2213 2214 public void onRestorePreferencesClicked() { 2215 if (mPausing) return; 2216 Runnable runnable = new Runnable() { 2217 public void run() { 2218 restorePreferences(); 2219 } 2220 }; 2221 mRotateDialog.showAlertDialog( 2222 getString(R.string.confirm_restore_title), 2223 getString(R.string.confirm_restore_message), 2224 getString(android.R.string.ok), runnable, 2225 getString(android.R.string.cancel), null); 2226 } 2227 2228 private void restorePreferences() { 2229 // Reset the zoom. Zoom value is not stored in preference. 2230 if (mParameters.isZoomSupported()) { 2231 mZoomValue = 0; 2232 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 2233 mZoomControl.setZoomIndex(0); 2234 } 2235 if (mIndicatorControlContainer != null) { 2236 mIndicatorControlContainer.dismissSettingPopup(); 2237 CameraSettings.restorePreferences(Camera.this, mPreferences, 2238 mParameters); 2239 mIndicatorControlContainer.reloadPreferences(); 2240 onSharedPreferenceChanged(); 2241 } 2242 } 2243 2244 public void onOverriddenPreferencesClicked() { 2245 if (mPausing) return; 2246 if (mNotSelectableToast == null) { 2247 String str = getResources().getString(R.string.not_selectable_in_scene_mode); 2248 mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT); 2249 } 2250 mNotSelectableToast.show(); 2251 } 2252 2253 private void showSharePopup() { 2254 mImageSaver.waitDone(); 2255 Uri uri = mThumbnail.getUri(); 2256 if (mSharePopup == null || !uri.equals(mSharePopup.getUri())) { 2257 // SharePopup window takes the mPreviewPanel as its size reference. 2258 mSharePopup = new SharePopup(this, uri, mThumbnail.getBitmap(), 2259 mOrientationCompensation, mPreviewPanel); 2260 } 2261 mSharePopup.showAtLocation(mThumbnailView, Gravity.NO_GRAVITY, 0, 0); 2262 } 2263 2264 @Override 2265 public void onFaceDetection(Face[] faces, android.hardware.Camera camera) { 2266 mFaceView.setFaces(faces); 2267 } 2268 2269 private void showTapToFocusToast() { 2270 new RotateTextToast(this, R.string.tap_to_focus, mOrientation).show(); 2271 // Clear the preference. 2272 Editor editor = mPreferences.edit(); 2273 editor.putBoolean(CameraSettings.KEY_CAMERA_FIRST_USE_HINT_SHOWN, false); 2274 editor.apply(); 2275 } 2276 2277 private void initializeCapabilities() { 2278 mInitialParams = mCameraDevice.getParameters(); 2279 mFocusManager.initializeParameters(mInitialParams); 2280 mFocusAreaSupported = (mInitialParams.getMaxNumFocusAreas() > 0 2281 && isSupported(Parameters.FOCUS_MODE_AUTO, 2282 mInitialParams.getSupportedFocusModes())); 2283 mMeteringAreaSupported = (mInitialParams.getMaxNumMeteringAreas() > 0); 2284 mAeLockSupported = mInitialParams.isAutoExposureLockSupported(); 2285 mAwbLockSupported = mInitialParams.isAutoWhiteBalanceLockSupported(); 2286 } 2287} 2288