Camera.java revision f5ba96adb5d72f9cac77ff21614f54e0d2bbb795
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; 79 80/** The Camera activity which can preview and take pictures. */ 81public class Camera extends ActivityBase implements FocusManager.Listener, 82 View.OnTouchListener, ShutterButton.OnShutterButtonListener, 83 SurfaceHolder.Callback, ModePicker.OnModeChangeListener, 84 FaceDetectionListener, CameraPreference.OnPreferenceChangedListener, 85 LocationManager.Listener, ShutterButton.OnShutterButtonLongPressListener { 86 87 private static final String TAG = "camera"; 88 89 private static final int CROP_MSG = 1; 90 private static final int FIRST_TIME_INIT = 2; 91 private static final int CLEAR_SCREEN_DELAY = 3; 92 private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 4; 93 private static final int CHECK_DISPLAY_ROTATION = 5; 94 private static final int SHOW_TAP_TO_FOCUS_TOAST = 6; 95 private static final int DISMISS_TAP_TO_FOCUS_TOAST = 7; 96 private static final int UPDATE_THUMBNAIL = 8; 97 98 // The subset of parameters we need to update in setCameraParameters(). 99 private static final int UPDATE_PARAM_INITIALIZE = 1; 100 private static final int UPDATE_PARAM_ZOOM = 2; 101 private static final int UPDATE_PARAM_PREFERENCE = 4; 102 private static final int UPDATE_PARAM_ALL = -1; 103 104 // When setCameraParametersWhenIdle() is called, we accumulate the subsets 105 // needed to be updated in mUpdateSet. 106 private int mUpdateSet; 107 108 private static final int SCREEN_DELAY = 2 * 60 * 1000; 109 110 private static final int ZOOM_STOPPED = 0; 111 private static final int ZOOM_START = 1; 112 private static final int ZOOM_STOPPING = 2; 113 114 private int mZoomState = ZOOM_STOPPED; 115 private boolean mSmoothZoomSupported = false; 116 private int mZoomValue; // The current zoom value. 117 private int mZoomMax; 118 private int mTargetZoomValue; 119 private ZoomControl mZoomControl; 120 121 private Parameters mParameters; 122 private Parameters mInitialParams; 123 private boolean mFocusAreaSupported; 124 private boolean mMeteringAreaSupported; 125 private boolean mAeLockSupported; 126 private boolean mAwbLockSupported; 127 128 private MyOrientationEventListener mOrientationListener; 129 // The degrees of the device rotated clockwise from its natural orientation. 130 private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 131 // The orientation compensation for icons and thumbnails. Ex: if the value 132 // is 90, the UI components should be rotated 90 degrees counter-clockwise. 133 private int mOrientationCompensation = 0; 134 private ComboPreferences mPreferences; 135 136 private static final String sTempCropFilename = "crop-temp"; 137 138 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 use a thread in ImageSaver to do the work of saving images and 172 // generating thumbnails. This reduces the shot-to-shot time. 173 private ImageSaver mImageSaver; 174 175 private Runnable mDoSnapRunnable = new Runnable() { 176 public void run() { 177 onShutterButtonClick(); 178 } 179 }; 180 181 private final StringBuilder mBuilder = new StringBuilder(); 182 private final Formatter mFormatter = new Formatter(mBuilder); 183 private final Object[] mFormatterArgs = new Object[1]; 184 185 /** 186 * An unpublished intent flag requesting to return as soon as capturing 187 * is completed. 188 * 189 * TODO: consider publishing by moving into MediaStore. 190 */ 191 private final static String EXTRA_QUICK_CAPTURE = 192 "android.intent.extra.quickCapture"; 193 194 // The display rotation in degrees. This is only valid when mCameraState is 195 // not PREVIEW_STOPPED. 196 private int mDisplayRotation; 197 // The value for android.hardware.Camera.setDisplayOrientation. 198 private int mDisplayOrientation; 199 private boolean mPausing; 200 private boolean mFirstTimeInitialized; 201 private boolean mIsImageCaptureIntent; 202 203 private static final int PREVIEW_STOPPED = 0; 204 private static final int IDLE = 1; // preview is active 205 // Focus is in progress. The exact focus state is in Focus.java. 206 private static final int FOCUSING = 2; 207 private static final int SNAPSHOT_IN_PROGRESS = 3; 208 private int mCameraState = PREVIEW_STOPPED; 209 private boolean mSnapshotOnIdle = false; 210 211 private ContentResolver mContentResolver; 212 private boolean mDidRegister = false; 213 214 private LocationManager mLocationManager; 215 216 private final ShutterCallback mShutterCallback = new ShutterCallback(); 217 private final PostViewPictureCallback mPostViewPictureCallback = 218 new PostViewPictureCallback(); 219 private final RawPictureCallback mRawPictureCallback = 220 new RawPictureCallback(); 221 private final AutoFocusCallback mAutoFocusCallback = 222 new AutoFocusCallback(); 223 private final ZoomListener mZoomListener = new ZoomListener(); 224 private final CameraErrorCallback mErrorCallback = new CameraErrorCallback(); 225 226 private long mFocusStartTime; 227 private long mCaptureStartTime; 228 private long mShutterCallbackTime; 229 private long mPostViewPictureCallbackTime; 230 private long mRawPictureCallbackTime; 231 private long mJpegPictureCallbackTime; 232 private long mOnResumeTime; 233 private long mPicturesRemaining; 234 private byte[] mJpegImageData; 235 236 // These latency time are for the CameraLatency test. 237 public long mAutoFocusTime; 238 public long mShutterLag; 239 public long mShutterToPictureDisplayedTime; 240 public long mPictureDisplayedToJpegCallbackTime; 241 public long mJpegCallbackFinishTime; 242 243 // This handles everything about focus. 244 private FocusManager mFocusManager; 245 private String mSceneMode; 246 private Toast mNotSelectableToast; 247 private Toast mNoShareToast; 248 249 private final Handler mHandler = new MainHandler(); 250 private IndicatorControlContainer mIndicatorControlContainer; 251 private PreferenceGroup mPreferenceGroup; 252 253 // multiple cameras support 254 private int mNumberOfCameras; 255 private int mCameraId; 256 private int mFrontCameraId; 257 private int mBackCameraId; 258 259 private boolean mQuickCapture; 260 261 /** 262 * This Handler is used to post message back onto the main thread of the 263 * application 264 */ 265 private class MainHandler extends Handler { 266 @Override 267 public void handleMessage(Message msg) { 268 switch (msg.what) { 269 case CLEAR_SCREEN_DELAY: { 270 getWindow().clearFlags( 271 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 272 break; 273 } 274 275 case FIRST_TIME_INIT: { 276 initializeFirstTime(); 277 break; 278 } 279 280 case SET_CAMERA_PARAMETERS_WHEN_IDLE: { 281 setCameraParametersWhenIdle(0); 282 break; 283 } 284 285 case CHECK_DISPLAY_ROTATION: { 286 // Set the display orientation if display rotation has changed. 287 // Sometimes this happens when the device is held upside 288 // down and camera app is opened. Rotation animation will 289 // take some time and the rotation value we have got may be 290 // wrong. Framework does not have a callback for this now. 291 if (Util.getDisplayRotation(Camera.this) != mDisplayRotation) { 292 setDisplayOrientation(); 293 } 294 if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) { 295 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 296 } 297 break; 298 } 299 300 case SHOW_TAP_TO_FOCUS_TOAST: { 301 showTapToFocusToast(); 302 break; 303 } 304 305 case DISMISS_TAP_TO_FOCUS_TOAST: { 306 View v = findViewById(R.id.tap_to_focus_prompt); 307 v.setVisibility(View.GONE); 308 v.setAnimation(AnimationUtils.loadAnimation(Camera.this, 309 R.anim.on_screen_hint_exit)); 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.setOnShutterButtonLongPressListener(this); 374 mShutterButton.setVisibility(View.VISIBLE); 375 376 // Initialize focus UI. 377 mPreviewFrame = findViewById(R.id.camera_preview); 378 mPreviewFrame.setOnTouchListener(this); 379 mFocusIndicator = (RotateLayout) findViewById(R.id.focus_indicator_rotate_layout); 380 mFocusManager.initialize(mFocusIndicator, mPreviewFrame, mFaceView, this); 381 mFocusManager.initializeSoundPlayer(getResources().openRawResourceFd(R.raw.camera_focus)); 382 mImageSaver = new ImageSaver(); 383 Util.initializeScreenBrightness(getWindow(), getContentResolver()); 384 installIntentFilter(); 385 initializeZoom(); 386 startFaceDetection(); 387 // Show the tap to focus toast if this is the first start. 388 if (mFocusAreaSupported && 389 mPreferences.getBoolean(CameraSettings.KEY_TAP_TO_FOCUS_PROMPT_SHOWN, true)) { 390 // Delay the toast for one second to wait for orientation. 391 mHandler.sendEmptyMessageDelayed(SHOW_TAP_TO_FOCUS_TOAST, 1000); 392 } 393 394 mFirstTimeInitialized = true; 395 addIdleHandler(); 396 } 397 398 private void addIdleHandler() { 399 MessageQueue queue = Looper.myQueue(); 400 queue.addIdleHandler(new MessageQueue.IdleHandler() { 401 public boolean queueIdle() { 402 Storage.ensureOSXCompatible(); 403 return false; 404 } 405 }); 406 } 407 408 private void initThumbnailButton() { 409 // Load the thumbnail from the disk. 410 mThumbnail = Thumbnail.loadFrom(new File(getFilesDir(), Thumbnail.LAST_THUMB_FILENAME)); 411 updateThumbnailButton(); 412 } 413 414 private void updateThumbnailButton() { 415 // Update last image if URI is invalid and the storage is ready. 416 if ((mThumbnail == null || !Util.isUriValid(mThumbnail.getUri(), mContentResolver)) 417 && mPicturesRemaining >= 0) { 418 mThumbnail = Thumbnail.getLastThumbnail(mContentResolver); 419 } 420 if (mThumbnail != null) { 421 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 422 } else { 423 mThumbnailView.setBitmap(null); 424 } 425 } 426 427 // If the activity is paused and resumed, this method will be called in 428 // onResume. 429 private void initializeSecondTime() { 430 // Start orientation listener as soon as possible because it takes 431 // some time to get first orientation. 432 mOrientationListener.enable(); 433 434 // Start location update if needed. 435 boolean recordLocation = RecordLocationPreference.get( 436 mPreferences, getContentResolver()); 437 mLocationManager.recordLocation(recordLocation); 438 439 installIntentFilter(); 440 mFocusManager.initializeSoundPlayer(getResources().openRawResourceFd(R.raw.camera_focus)); 441 mImageSaver = new ImageSaver(); 442 initializeZoom(); 443 keepMediaProviderInstance(); 444 checkStorage(); 445 hidePostCaptureAlert(); 446 447 if (!mIsImageCaptureIntent) { 448 updateThumbnailButton(); 449 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 450 } 451 } 452 453 private class ZoomChangeListener implements ZoomControl.OnZoomChangedListener { 454 // only for immediate zoom 455 @Override 456 public void onZoomValueChanged(int index) { 457 Camera.this.onZoomValueChanged(index); 458 } 459 460 // only for smooth zoom 461 @Override 462 public void onZoomStateChanged(int state) { 463 if (mPausing) return; 464 465 Log.v(TAG, "zoom picker state=" + state); 466 if (state == ZoomControl.ZOOM_IN) { 467 Camera.this.onZoomValueChanged(mZoomMax); 468 } else if (state == ZoomControl.ZOOM_OUT) { 469 Camera.this.onZoomValueChanged(0); 470 } else { 471 mTargetZoomValue = -1; 472 if (mZoomState == ZOOM_START) { 473 mZoomState = ZOOM_STOPPING; 474 mCameraDevice.stopSmoothZoom(); 475 } 476 } 477 } 478 } 479 480 private void initializeZoom() { 481 // Get the parameter to make sure we have the up-to-date zoom value. 482 mParameters = mCameraDevice.getParameters(); 483 if (!mParameters.isZoomSupported()) return; 484 mZoomMax = mParameters.getMaxZoom(); 485 // Currently we use immediate zoom for fast zooming to get better UX and 486 // there is no plan to take advantage of the smooth zoom. 487 mZoomControl.setZoomMax(mZoomMax); 488 mZoomControl.setZoomIndex(mParameters.getZoom()); 489 mZoomControl.setSmoothZoomSupported(mSmoothZoomSupported); 490 mZoomControl.setOnZoomChangeListener(new ZoomChangeListener()); 491 mCameraDevice.setZoomChangeListener(mZoomListener); 492 } 493 494 private void onZoomValueChanged(int index) { 495 // Not useful to change zoom value when the activity is paused. 496 if (mPausing) return; 497 498 if (mSmoothZoomSupported) { 499 if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { 500 mTargetZoomValue = index; 501 if (mZoomState == ZOOM_START) { 502 mZoomState = ZOOM_STOPPING; 503 mCameraDevice.stopSmoothZoom(); 504 } 505 } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { 506 mTargetZoomValue = index; 507 mCameraDevice.startSmoothZoom(index); 508 mZoomState = ZOOM_START; 509 } 510 } else { 511 mZoomValue = index; 512 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 513 } 514 } 515 516 @Override 517 public void startFaceDetection() { 518 if (mParameters.getMaxNumDetectedFaces() > 0) { 519 mFaceView = (FaceView) findViewById(R.id.face_view); 520 mFaceView.clear(); 521 mFaceView.setVisibility(View.VISIBLE); 522 mFaceView.setDisplayOrientation(mDisplayOrientation); 523 CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; 524 mFaceView.setMirror(info.facing == CameraInfo.CAMERA_FACING_FRONT); 525 mFaceView.resume(); 526 mCameraDevice.setFaceDetectionListener(this); 527 mCameraDevice.startFaceDetection(); 528 } 529 } 530 531 @Override 532 public void stopFaceDetection() { 533 if (mParameters.getMaxNumDetectedFaces() > 0) { 534 mCameraDevice.setFaceDetectionListener(null); 535 mCameraDevice.stopFaceDetection(); 536 if (mFaceView != null) mFaceView.clear(); 537 } 538 } 539 540 private class PopupGestureListener 541 extends GestureDetector.SimpleOnGestureListener { 542 @Override 543 public boolean onDown(MotionEvent e) { 544 // Check if the popup window is visible. 545 View popup = mIndicatorControlContainer.getActiveSettingPopup(); 546 if (popup == null) return false; 547 548 549 // Let popup window, indicator control or preview frame handle the 550 // event by themselves. Dismiss the popup window if users touch on 551 // other areas. 552 if (!Util.pointInView(e.getX(), e.getY(), popup) 553 && !Util.pointInView(e.getX(), e.getY(), mIndicatorControlContainer) 554 && !Util.pointInView(e.getX(), e.getY(), mPreviewFrame)) { 555 mIndicatorControlContainer.dismissSettingPopup(); 556 // Let event fall through. 557 } 558 return false; 559 } 560 } 561 562 @Override 563 public boolean dispatchTouchEvent(MotionEvent m) { 564 // Check if the popup window should be dismissed first. 565 if (mPopupGestureDetector != null && mPopupGestureDetector.onTouchEvent(m)) { 566 return true; 567 } 568 569 return super.dispatchTouchEvent(m); 570 } 571 572 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 573 @Override 574 public void onReceive(Context context, Intent intent) { 575 String action = intent.getAction(); 576 Log.d(TAG, "Received intent action=" + action); 577 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 578 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 579 || action.equals(Intent.ACTION_MEDIA_CHECKING)) { 580 checkStorage(); 581 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 582 checkStorage(); 583 if (!mIsImageCaptureIntent) { 584 updateThumbnailButton(); 585 } 586 } 587 } 588 }; 589 590 private void initOnScreenIndicator() { 591 mGpsNoSignalIndicator = findViewById(R.id.onscreen_gps_indicator_no_signal); 592 mGpsHasSignalIndicator = findViewById(R.id.onscreen_gps_indicator_on); 593 mExposureIndicator = (TextView) findViewById(R.id.onscreen_exposure_indicator); 594 } 595 596 @Override 597 public void showGpsOnScreenIndicator(boolean hasSignal) { 598 if (hasSignal) { 599 if (mGpsNoSignalIndicator != null) { 600 mGpsNoSignalIndicator.setVisibility(View.GONE); 601 } 602 if (mGpsHasSignalIndicator != null) { 603 mGpsHasSignalIndicator.setVisibility(View.VISIBLE); 604 } 605 } else { 606 if (mGpsNoSignalIndicator != null) { 607 mGpsNoSignalIndicator.setVisibility(View.VISIBLE); 608 } 609 if (mGpsHasSignalIndicator != null) { 610 mGpsHasSignalIndicator.setVisibility(View.GONE); 611 } 612 } 613 } 614 615 @Override 616 public void hideGpsOnScreenIndicator() { 617 if (mGpsNoSignalIndicator != null) mGpsNoSignalIndicator.setVisibility(View.GONE); 618 if (mGpsHasSignalIndicator != null) mGpsHasSignalIndicator.setVisibility(View.GONE); 619 } 620 621 private void updateExposureOnScreenIndicator(int value) { 622 if (mExposureIndicator == null) return; 623 624 if (value == 0) { 625 mExposureIndicator.setText(""); 626 mExposureIndicator.setVisibility(View.GONE); 627 } else { 628 float step = mParameters.getExposureCompensationStep(); 629 mFormatterArgs[0] = value * step; 630 mBuilder.delete(0, mBuilder.length()); 631 mFormatter.format("%+1.1f", mFormatterArgs); 632 String exposure = mFormatter.toString(); 633 mExposureIndicator.setText(exposure); 634 mExposureIndicator.setVisibility(View.VISIBLE); 635 } 636 } 637 638 private final class ShutterCallback 639 implements android.hardware.Camera.ShutterCallback { 640 public void onShutter() { 641 mShutterCallbackTime = System.currentTimeMillis(); 642 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 643 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 644 mFocusManager.onShutter(); 645 } 646 } 647 648 private final class PostViewPictureCallback implements PictureCallback { 649 public void onPictureTaken( 650 byte [] data, android.hardware.Camera camera) { 651 mPostViewPictureCallbackTime = System.currentTimeMillis(); 652 Log.v(TAG, "mShutterToPostViewCallbackTime = " 653 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 654 + "ms"); 655 } 656 } 657 658 private final class RawPictureCallback implements PictureCallback { 659 public void onPictureTaken( 660 byte [] rawData, android.hardware.Camera camera) { 661 mRawPictureCallbackTime = System.currentTimeMillis(); 662 Log.v(TAG, "mShutterToRawCallbackTime = " 663 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 664 } 665 } 666 667 private final class JpegPictureCallback implements PictureCallback { 668 Location mLocation; 669 670 public JpegPictureCallback(Location loc) { 671 mLocation = loc; 672 } 673 674 public void onPictureTaken( 675 final byte [] jpegData, final android.hardware.Camera camera) { 676 if (mPausing) { 677 return; 678 } 679 680 mJpegPictureCallbackTime = System.currentTimeMillis(); 681 // If postview callback has arrived, the captured image is displayed 682 // in postview callback. If not, the captured image is displayed in 683 // raw picture callback. 684 if (mPostViewPictureCallbackTime != 0) { 685 mShutterToPictureDisplayedTime = 686 mPostViewPictureCallbackTime - mShutterCallbackTime; 687 mPictureDisplayedToJpegCallbackTime = 688 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 689 } else { 690 mShutterToPictureDisplayedTime = 691 mRawPictureCallbackTime - mShutterCallbackTime; 692 mPictureDisplayedToJpegCallbackTime = 693 mJpegPictureCallbackTime - mRawPictureCallbackTime; 694 } 695 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 696 + mPictureDisplayedToJpegCallbackTime + "ms"); 697 698 if (!mIsImageCaptureIntent) { 699 enableCameraControls(true); 700 701 startPreview(); 702 startFaceDetection(); 703 } 704 705 if (!mIsImageCaptureIntent) { 706 Size s = mParameters.getPictureSize(); 707 mImageSaver.addImage(jpegData, mLocation, s.width, s.height); 708 } else { 709 mJpegImageData = jpegData; 710 if (!mQuickCapture) { 711 showPostCaptureAlert(); 712 } else { 713 doAttach(); 714 } 715 } 716 717 // Check this in advance of each shot so we don't add to shutter 718 // latency. It's true that someone else could write to the SD card in 719 // the mean time and fill it, but that could have happened between the 720 // shutter press and saving the JPEG too. 721 checkStorage(); 722 723 long now = System.currentTimeMillis(); 724 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 725 Log.v(TAG, "mJpegCallbackFinishTime = " 726 + mJpegCallbackFinishTime + "ms"); 727 mJpegPictureCallbackTime = 0; 728 } 729 } 730 731 private final class AutoFocusCallback 732 implements android.hardware.Camera.AutoFocusCallback { 733 public void onAutoFocus( 734 boolean focused, android.hardware.Camera camera) { 735 if (mPausing) return; 736 737 mAutoFocusTime = System.currentTimeMillis() - mFocusStartTime; 738 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 739 mFocusManager.onAutoFocus(focused); 740 // If focus completes and the snapshot is not started, enable the 741 // controls. 742 if (mFocusManager.isFocusCompleted()) { 743 enableCameraControls(true); 744 } 745 } 746 } 747 748 private final class ZoomListener 749 implements android.hardware.Camera.OnZoomChangeListener { 750 @Override 751 public void onZoomChange( 752 int value, boolean stopped, android.hardware.Camera camera) { 753 Log.v(TAG, "Zoom changed: value=" + value + ". stopped=" + stopped); 754 mZoomValue = value; 755 756 // Update the UI when we get zoom value. 757 mZoomControl.setZoomIndex(value); 758 759 // Keep mParameters up to date. We do not getParameter again in 760 // takePicture. If we do not do this, wrong zoom value will be set. 761 mParameters.setZoom(value); 762 763 if (stopped && mZoomState != ZOOM_STOPPED) { 764 if (mTargetZoomValue != -1 && value != mTargetZoomValue) { 765 mCameraDevice.startSmoothZoom(mTargetZoomValue); 766 mZoomState = ZOOM_START; 767 } else { 768 mZoomState = ZOOM_STOPPED; 769 } 770 } 771 } 772 } 773 774 // Each SaveRequest remembers the data needed to save an image. 775 private static class SaveRequest { 776 byte[] data; 777 Location loc; 778 int width, height; 779 long dateTaken; 780 int previewWidth; 781 } 782 783 // We use a queue to store the SaveRequests that have not been completed 784 // yet. The main thread puts the request into the queue. The saver thread 785 // gets it from the queue, does the work, and removes it from the queue. 786 // 787 // There are several cases the main thread needs to wait for the saver 788 // thread to finish all the work in the queue: 789 // (1) When the activity's onPause() is called, we need to finish all the 790 // work, so other programs (like Gallery) can see all the images. 791 // (2) When we need to show the SharePop, we need to finish all the work 792 // too, because we want to show the thumbnail of the last image taken. 793 // 794 // If the queue becomes too long, adding a new request will block the main 795 // thread until the queue length drops below the threshold (QUEUE_LIMIT). 796 // If we don't do this, we may face several problems: (1) We may OOM 797 // because we are holding all the jpeg data in memory. (2) We may ANR 798 // when we need to wait for saver thread finishing all the work (in 799 // onPause() or showSharePopup()) because the time to finishing a long queue 800 // of work may be too long. 801 private class ImageSaver extends Thread { 802 private static final int QUEUE_LIMIT = 3; 803 804 private ArrayList<SaveRequest> mQueue; 805 private Thumbnail mPendingThumbnail; 806 private Object mUpdateThumbnailLock = new Object(); 807 private boolean mStop; 808 809 // Runs in main thread 810 public ImageSaver() { 811 mQueue = new ArrayList<SaveRequest>(); 812 start(); 813 } 814 815 // Runs in main thread 816 public void addImage(final byte[] data, Location loc, int width, 817 int height) { 818 SaveRequest r = new SaveRequest(); 819 r.data = data; 820 r.loc = (loc == null) ? null : new Location(loc); // make a copy 821 r.width = width; 822 r.height = height; 823 r.dateTaken = System.currentTimeMillis(); 824 r.previewWidth = mPreviewFrameLayout.getWidth(); 825 synchronized (this) { 826 while (mQueue.size() >= QUEUE_LIMIT) { 827 try { 828 wait(); 829 } catch (InterruptedException ex) { 830 // ignore. 831 } 832 } 833 mQueue.add(r); 834 notifyAll(); // Tell saver thread there is new work to do. 835 } 836 } 837 838 // Runs in saver thread 839 @Override 840 public void run() { 841 while (true) { 842 SaveRequest r; 843 synchronized (this) { 844 if (mQueue.isEmpty()) { 845 notifyAll(); // notify main thread in waitDone 846 847 // Note that we can only stop after we saved all images 848 // in the queue. 849 if (mStop) break; 850 851 try { 852 wait(); 853 } catch (InterruptedException ex) { 854 // ignore. 855 } 856 continue; 857 } 858 r = mQueue.get(0); 859 } 860 storeImage(r.data, r.loc, r.width, r.height, r.dateTaken, 861 r.previewWidth); 862 synchronized(this) { 863 mQueue.remove(0); 864 notifyAll(); // the main thread may wait in addImage 865 } 866 } 867 } 868 869 // Runs in main thread 870 public void waitDone() { 871 synchronized (this) { 872 while (!mQueue.isEmpty()) { 873 try { 874 wait(); 875 } catch (InterruptedException ex) { 876 // ignore. 877 } 878 } 879 } 880 updateThumbnail(); 881 } 882 883 // Runs in main thread 884 public void finish() { 885 waitDone(); 886 synchronized (this) { 887 mStop = true; 888 notifyAll(); 889 } 890 try { 891 join(); 892 } catch (InterruptedException ex) { 893 // ignore. 894 } 895 } 896 897 // Runs in main thread (because we need to update mThumbnailView in the 898 // main thread) 899 public void updateThumbnail() { 900 Thumbnail t; 901 synchronized (mUpdateThumbnailLock) { 902 mHandler.removeMessages(UPDATE_THUMBNAIL); 903 t = mPendingThumbnail; 904 mPendingThumbnail = null; 905 } 906 907 if (t != null) { 908 mThumbnail = t; 909 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 910 } 911 // Share popup may still have the reference to the old thumbnail. Clear it. 912 mSharePopup = null; 913 } 914 915 // Runs in saver thread 916 private void storeImage(final byte[] data, Location loc, int width, 917 int height, long dateTaken, int previewWidth) { 918 String title = Util.createJpegName(dateTaken); 919 int orientation = Exif.getOrientation(data); 920 Uri uri = Storage.addImage(mContentResolver, title, dateTaken, 921 loc, orientation, data, width, height); 922 if (uri != null) { 923 boolean needThumbnail; 924 synchronized (this) { 925 // If the number of requests in the queue (include the 926 // current one) is greater than 1, we don't need to generate 927 // thumbnail for this image. Because we'll soon replace it 928 // with the thumbnail for some image later in the queue. 929 needThumbnail = (mQueue.size() <= 1); 930 } 931 if (needThumbnail) { 932 // Create a thumbnail whose width is equal or bigger than 933 // that of the preview. 934 int ratio = (int) Math.ceil((double) width / previewWidth); 935 int inSampleSize = Integer.highestOneBit(ratio); 936 Thumbnail t = Thumbnail.createThumbnail( 937 data, orientation, inSampleSize, uri); 938 synchronized (mUpdateThumbnailLock) { 939 // We need to update the thumbnail in the main thread, 940 // so send a message to run updateThumbnail(). 941 mPendingThumbnail = t; 942 mHandler.sendEmptyMessage(UPDATE_THUMBNAIL); 943 } 944 } 945 Util.broadcastNewPicture(Camera.this, uri); 946 } 947 } 948 } 949 950 @Override 951 public boolean capture() { 952 // If we are already in the middle of taking a snapshot then ignore. 953 if (mCameraState == SNAPSHOT_IN_PROGRESS || mCameraDevice == null) { 954 return false; 955 } 956 mCaptureStartTime = System.currentTimeMillis(); 957 mPostViewPictureCallbackTime = 0; 958 enableCameraControls(false); 959 mJpegImageData = null; 960 961 // Set rotation and gps data. 962 Util.setRotationParameter(mParameters, mCameraId, mOrientation); 963 Location loc = mLocationManager.getCurrentLocation(); 964 Util.setGpsParameters(mParameters, loc); 965 mCameraDevice.setParameters(mParameters); 966 967 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 968 mPostViewPictureCallback, new JpegPictureCallback(loc)); 969 mCameraState = SNAPSHOT_IN_PROGRESS; 970 return true; 971 } 972 973 @Override 974 public void setFocusParameters() { 975 setCameraParameters(UPDATE_PARAM_PREFERENCE); 976 } 977 978 private boolean saveDataToFile(String filePath, byte[] data) { 979 FileOutputStream f = null; 980 try { 981 f = new FileOutputStream(filePath); 982 f.write(data); 983 } catch (IOException e) { 984 return false; 985 } finally { 986 Util.closeSilently(f); 987 } 988 return true; 989 } 990 991 private void getPreferredCameraId() { 992 mPreferences = new ComboPreferences(this); 993 CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal()); 994 mCameraId = CameraSettings.readPreferredCameraId(mPreferences); 995 996 // Testing purpose. Launch a specific camera through the intent extras. 997 int intentCameraId = Util.getCameraFacingIntentExtras(this); 998 if (intentCameraId != -1) { 999 mCameraId = intentCameraId; 1000 } 1001 } 1002 1003 Thread mCameraOpenThread = new Thread(new Runnable() { 1004 public void run() { 1005 try { 1006 mCameraDevice = Util.openCamera(Camera.this, mCameraId); 1007 } catch (CameraHardwareException e) { 1008 mOpenCameraFail = true; 1009 } catch (CameraDisabledException e) { 1010 mCameraDisabled = true; 1011 } 1012 } 1013 }); 1014 1015 Thread mCameraPreviewThread = new Thread(new Runnable() { 1016 public void run() { 1017 initializeCapabilities(); 1018 startPreview(); 1019 } 1020 }); 1021 1022 @Override 1023 public void onCreate(Bundle icicle) { 1024 super.onCreate(icicle); 1025 getPreferredCameraId(); 1026 mFocusManager = new FocusManager(mPreferences, 1027 getString(R.string.pref_camera_focusmode_default)); 1028 1029 /* 1030 * To reduce startup time, we start the camera open and preview threads. 1031 * We make sure the preview is started at the end of onCreate. 1032 */ 1033 mCameraOpenThread.start(); 1034 1035 mIsImageCaptureIntent = isImageCaptureIntent(); 1036 setContentView(R.layout.camera); 1037 if (mIsImageCaptureIntent) { 1038 mReviewDoneButton = (Rotatable) findViewById(R.id.btn_done); 1039 mReviewCancelButton = (Rotatable) findViewById(R.id.btn_cancel); 1040 findViewById(R.id.btn_cancel).setVisibility(View.VISIBLE); 1041 } else { 1042 mThumbnailView = (RotateImageView) findViewById(R.id.thumbnail); 1043 mThumbnailView.enableFilter(false); 1044 mThumbnailView.setVisibility(View.VISIBLE); 1045 } 1046 1047 mPreferences.setLocalId(this, mCameraId); 1048 CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); 1049 1050 mNumberOfCameras = CameraHolder.instance().getNumberOfCameras(); 1051 mQuickCapture = getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false); 1052 1053 // we need to reset exposure for the preview 1054 resetExposureCompensation(); 1055 1056 Util.enterLightsOutMode(getWindow()); 1057 1058 // don't set mSurfaceHolder here. We have it set ONLY within 1059 // surfaceChanged / surfaceDestroyed, other parts of the code 1060 // assume that when it is set, the surface is also set. 1061 SurfaceView preview = (SurfaceView) findViewById(R.id.camera_preview); 1062 SurfaceHolder holder = preview.getHolder(); 1063 holder.addCallback(this); 1064 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 1065 1066 // Make sure camera device is opened. 1067 try { 1068 mCameraOpenThread.join(); 1069 mCameraOpenThread = null; 1070 if (mOpenCameraFail) { 1071 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1072 return; 1073 } else if (mCameraDisabled) { 1074 Util.showErrorAndFinish(this, R.string.camera_disabled); 1075 return; 1076 } 1077 } catch (InterruptedException ex) { 1078 // ignore 1079 } 1080 mCameraPreviewThread.start(); 1081 1082 if (mIsImageCaptureIntent) { 1083 setupCaptureParams(); 1084 } else { 1085 mModePicker = (ModePicker) findViewById(R.id.mode_picker); 1086 mModePicker.setVisibility(View.VISIBLE); 1087 mModePicker.setOnModeChangeListener(this); 1088 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 1089 } 1090 1091 mZoomControl = (ZoomControl) findViewById(R.id.zoom_control); 1092 mLocationManager = new LocationManager(this, this); 1093 1094 mBackCameraId = CameraHolder.instance().getBackCameraId(); 1095 mFrontCameraId = CameraHolder.instance().getFrontCameraId(); 1096 1097 // Wait until the camera settings are retrieved. 1098 synchronized (mCameraPreviewThread) { 1099 try { 1100 mCameraPreviewThread.wait(); 1101 } catch (InterruptedException ex) { 1102 // ignore 1103 } 1104 } 1105 1106 // Do this after starting preview because it depends on camera 1107 // parameters. 1108 initializeIndicatorControl(); 1109 1110 // Make sure preview is started. 1111 try { 1112 mCameraPreviewThread.join(); 1113 } catch (InterruptedException ex) { 1114 // ignore 1115 } 1116 mCameraPreviewThread = null; 1117 } 1118 1119 private void overrideCameraSettings(final String flashMode, 1120 final String whiteBalance, final String focusMode) { 1121 if (mIndicatorControlContainer != null) { 1122 mIndicatorControlContainer.overrideSettings( 1123 CameraSettings.KEY_FLASH_MODE, flashMode, 1124 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 1125 CameraSettings.KEY_FOCUS_MODE, focusMode); 1126 } 1127 } 1128 1129 private void updateSceneModeUI() { 1130 // If scene mode is set, we cannot set flash mode, white balance, and 1131 // focus mode, instead, we read it from driver 1132 if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1133 overrideCameraSettings(mParameters.getFlashMode(), 1134 mParameters.getWhiteBalance(), mParameters.getFocusMode()); 1135 } else { 1136 overrideCameraSettings(null, null, null); 1137 } 1138 } 1139 1140 private void loadCameraPreferences() { 1141 CameraSettings settings = new CameraSettings(this, mInitialParams, 1142 mCameraId, CameraHolder.instance().getCameraInfo()); 1143 mPreferenceGroup = settings.getPreferenceGroup(R.xml.camera_preferences); 1144 } 1145 1146 private void initializeIndicatorControl() { 1147 // setting the indicator buttons. 1148 mIndicatorControlContainer = 1149 (IndicatorControlContainer) findViewById(R.id.indicator_control); 1150 if (mIndicatorControlContainer == null) return; 1151 loadCameraPreferences(); 1152 final String[] SETTING_KEYS = { 1153 CameraSettings.KEY_FLASH_MODE, 1154 CameraSettings.KEY_WHITE_BALANCE, 1155 CameraSettings.KEY_EXPOSURE, 1156 CameraSettings.KEY_SCENE_MODE}; 1157 final String[] OTHER_SETTING_KEYS = { 1158 CameraSettings.KEY_RECORD_LOCATION, 1159 CameraSettings.KEY_PICTURE_SIZE, 1160 CameraSettings.KEY_FOCUS_MODE}; 1161 1162 CameraPicker.setImageResourceId(R.drawable.ic_switch_photo_facing_holo_light); 1163 mIndicatorControlContainer.initialize(this, mPreferenceGroup, 1164 mParameters.isZoomSupported(), 1165 SETTING_KEYS, OTHER_SETTING_KEYS); 1166 updateSceneModeUI(); 1167 mIndicatorControlContainer.setListener(this); 1168 } 1169 1170 private boolean collapseCameraControls() { 1171 if ((mIndicatorControlContainer != null) 1172 && mIndicatorControlContainer.dismissSettingPopup()) { 1173 return true; 1174 } 1175 return false; 1176 } 1177 1178 private void enableCameraControls(boolean enable) { 1179 if (mIndicatorControlContainer != null) { 1180 mIndicatorControlContainer.setEnabled(enable); 1181 } 1182 if (mModePicker != null) mModePicker.setEnabled(enable); 1183 if (mZoomControl != null) mZoomControl.setEnabled(enable); 1184 if (mThumbnailView != null) mThumbnailView.setEnabled(enable); 1185 } 1186 1187 private class MyOrientationEventListener 1188 extends OrientationEventListener { 1189 public MyOrientationEventListener(Context context) { 1190 super(context); 1191 } 1192 1193 @Override 1194 public void onOrientationChanged(int orientation) { 1195 // We keep the last known orientation. So if the user first orient 1196 // the camera then point the camera to floor or sky, we still have 1197 // the correct orientation. 1198 if (orientation == ORIENTATION_UNKNOWN) return; 1199 mOrientation = Util.roundOrientation(orientation, mOrientation); 1200 // When the screen is unlocked, display rotation may change. Always 1201 // calculate the up-to-date orientationCompensation. 1202 int orientationCompensation = mOrientation 1203 + Util.getDisplayRotation(Camera.this); 1204 if (mOrientationCompensation != orientationCompensation) { 1205 mOrientationCompensation = orientationCompensation; 1206 setOrientationIndicator(mOrientationCompensation); 1207 } 1208 1209 // Show the toast after getting the first orientation changed. 1210 if (mHandler.hasMessages(SHOW_TAP_TO_FOCUS_TOAST)) { 1211 mHandler.removeMessages(SHOW_TAP_TO_FOCUS_TOAST); 1212 showTapToFocusToast(); 1213 } 1214 } 1215 } 1216 1217 private void setOrientationIndicator(int orientation) { 1218 Rotatable[] indicators = {mThumbnailView, mModePicker, mSharePopup, 1219 mIndicatorControlContainer, mZoomControl, mFocusIndicator, mFaceView, 1220 mReviewCancelButton, mReviewDoneButton}; 1221 for (Rotatable indicator : indicators) { 1222 if (indicator != null) indicator.setOrientation(orientation); 1223 } 1224 } 1225 1226 @Override 1227 public void onStop() { 1228 super.onStop(); 1229 if (mMediaProviderClient != null) { 1230 mMediaProviderClient.release(); 1231 mMediaProviderClient = null; 1232 } 1233 } 1234 1235 private void checkStorage() { 1236 mPicturesRemaining = Storage.getAvailableSpace(); 1237 if (mPicturesRemaining > Storage.LOW_STORAGE_THRESHOLD) { 1238 mPicturesRemaining = (mPicturesRemaining - Storage.LOW_STORAGE_THRESHOLD) 1239 / Storage.PICTURE_SIZE; 1240 } else if (mPicturesRemaining > 0) { 1241 mPicturesRemaining = 0; 1242 } 1243 1244 updateStorageHint(); 1245 } 1246 1247 @OnClickAttr 1248 public void onThumbnailClicked(View v) { 1249 if (isCameraIdle() && mThumbnail != null) { 1250 showSharePopup(); 1251 } 1252 } 1253 1254 @OnClickAttr 1255 public void onReviewRetakeClicked(View v) { 1256 hidePostCaptureAlert(); 1257 startPreview(); 1258 startFaceDetection(); 1259 } 1260 1261 @OnClickAttr 1262 public void onReviewDoneClicked(View v) { 1263 doAttach(); 1264 } 1265 1266 @OnClickAttr 1267 public void onReviewCancelClicked(View v) { 1268 doCancel(); 1269 } 1270 1271 private void doAttach() { 1272 if (mPausing) { 1273 return; 1274 } 1275 1276 byte[] data = mJpegImageData; 1277 1278 if (mCropValue == null) { 1279 // First handle the no crop case -- just return the value. If the 1280 // caller specifies a "save uri" then write the data to it's 1281 // stream. Otherwise, pass back a scaled down version of the bitmap 1282 // directly in the extras. 1283 if (mSaveUri != null) { 1284 OutputStream outputStream = null; 1285 try { 1286 outputStream = mContentResolver.openOutputStream(mSaveUri); 1287 outputStream.write(data); 1288 outputStream.close(); 1289 1290 setResultEx(RESULT_OK); 1291 finish(); 1292 } catch (IOException ex) { 1293 // ignore exception 1294 } finally { 1295 Util.closeSilently(outputStream); 1296 } 1297 } else { 1298 int orientation = Exif.getOrientation(data); 1299 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1300 bitmap = Util.rotate(bitmap, orientation); 1301 setResultEx(RESULT_OK, 1302 new Intent("inline-data").putExtra("data", bitmap)); 1303 finish(); 1304 } 1305 } else { 1306 // Save the image to a temp file and invoke the cropper 1307 Uri tempUri = null; 1308 FileOutputStream tempStream = null; 1309 try { 1310 File path = getFileStreamPath(sTempCropFilename); 1311 path.delete(); 1312 tempStream = openFileOutput(sTempCropFilename, 0); 1313 tempStream.write(data); 1314 tempStream.close(); 1315 tempUri = Uri.fromFile(path); 1316 } catch (FileNotFoundException ex) { 1317 setResultEx(Activity.RESULT_CANCELED); 1318 finish(); 1319 return; 1320 } catch (IOException ex) { 1321 setResultEx(Activity.RESULT_CANCELED); 1322 finish(); 1323 return; 1324 } finally { 1325 Util.closeSilently(tempStream); 1326 } 1327 1328 Bundle newExtras = new Bundle(); 1329 if (mCropValue.equals("circle")) { 1330 newExtras.putString("circleCrop", "true"); 1331 } 1332 if (mSaveUri != null) { 1333 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1334 } else { 1335 newExtras.putBoolean("return-data", true); 1336 } 1337 1338 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1339 1340 cropIntent.setData(tempUri); 1341 cropIntent.putExtras(newExtras); 1342 1343 startActivityForResult(cropIntent, CROP_MSG); 1344 } 1345 } 1346 1347 private void doCancel() { 1348 setResultEx(RESULT_CANCELED, new Intent()); 1349 finish(); 1350 } 1351 1352 @Override 1353 public void onShutterButtonFocus(boolean pressed) { 1354 if (mPausing || collapseCameraControls() || mCameraState == SNAPSHOT_IN_PROGRESS) return; 1355 1356 // Do not do focus if there is not enough storage. 1357 if (pressed && !canTakePicture()) return; 1358 1359 if (pressed) { 1360 mFocusManager.onShutterDown(); 1361 } else { 1362 mFocusManager.onShutterUp(); 1363 } 1364 } 1365 1366 @Override 1367 public void onShutterButtonClick() { 1368 if (mPausing || collapseCameraControls()) return; 1369 1370 // Do not take the picture if there is not enough storage. 1371 if (mPicturesRemaining <= 0) { 1372 Log.i(TAG, "Not enough space or storage not ready. remaining=" + mPicturesRemaining); 1373 return; 1374 } 1375 1376 Log.v(TAG, "onShutterButtonClick: mCameraState=" + mCameraState); 1377 1378 // If the user wants to do a snapshot while the previous one is still 1379 // in progress, remember the fact and do it after we finish the previous 1380 // one and re-start the preview. 1381 if (mCameraState == SNAPSHOT_IN_PROGRESS) { 1382 mSnapshotOnIdle = true; 1383 return; 1384 } 1385 1386 mSnapshotOnIdle = false; 1387 mFocusManager.doSnap(); 1388 } 1389 1390 @Override 1391 public void onShutterButtonLongPressed() { 1392 if (mPausing || mCameraState == SNAPSHOT_IN_PROGRESS 1393 || mCameraDevice == null || mPicturesRemaining <= 0) return; 1394 1395 Log.v(TAG, "onShutterButtonLongPressed"); 1396 mFocusManager.shutterLongPressed(); 1397 } 1398 1399 private OnScreenHint mStorageHint; 1400 1401 private void updateStorageHint() { 1402 String noStorageText = null; 1403 1404 if (mPicturesRemaining == Storage.UNAVAILABLE) { 1405 noStorageText = getString(R.string.no_storage); 1406 } else if (mPicturesRemaining == Storage.PREPARING) { 1407 noStorageText = getString(R.string.preparing_sd); 1408 } else if (mPicturesRemaining == Storage.UNKNOWN_SIZE) { 1409 noStorageText = getString(R.string.access_sd_fail); 1410 } else if (mPicturesRemaining < 1L) { 1411 noStorageText = getString(R.string.not_enough_space); 1412 } 1413 1414 if (noStorageText != null) { 1415 if (mStorageHint == null) { 1416 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1417 } else { 1418 mStorageHint.setText(noStorageText); 1419 } 1420 mStorageHint.show(); 1421 } else if (mStorageHint != null) { 1422 mStorageHint.cancel(); 1423 mStorageHint = null; 1424 } 1425 } 1426 1427 private void installIntentFilter() { 1428 // install an intent filter to receive SD card related events. 1429 IntentFilter intentFilter = 1430 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1431 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1432 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1433 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1434 intentFilter.addDataScheme("file"); 1435 registerReceiver(mReceiver, intentFilter); 1436 mDidRegister = true; 1437 } 1438 1439 @Override 1440 protected void doOnResume() { 1441 if (mOpenCameraFail || mCameraDisabled) return; 1442 1443 mPausing = false; 1444 1445 mJpegPictureCallbackTime = 0; 1446 mZoomValue = 0; 1447 1448 // Start the preview if it is not started. 1449 if (mCameraState == PREVIEW_STOPPED) { 1450 try { 1451 mCameraDevice = Util.openCamera(this, mCameraId); 1452 initializeCapabilities(); 1453 resetExposureCompensation(); 1454 startPreview(); 1455 startFaceDetection(); 1456 } catch (CameraHardwareException e) { 1457 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1458 return; 1459 } catch (CameraDisabledException e) { 1460 Util.showErrorAndFinish(this, R.string.camera_disabled); 1461 return; 1462 } 1463 } 1464 1465 if (mSurfaceHolder != null) { 1466 // If first time initialization is not finished, put it in the 1467 // message queue. 1468 if (!mFirstTimeInitialized) { 1469 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1470 } else { 1471 initializeSecondTime(); 1472 } 1473 } 1474 keepScreenOnAwhile(); 1475 1476 if (mCameraState == IDLE) { 1477 mOnResumeTime = SystemClock.uptimeMillis(); 1478 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 1479 } 1480 } 1481 1482 @Override 1483 protected void onPause() { 1484 mPausing = true; 1485 stopPreview(); 1486 // Close the camera now because other activities may need to use it. 1487 closeCamera(); 1488 resetScreenOn(); 1489 1490 // Clear UI. 1491 collapseCameraControls(); 1492 if (mSharePopup != null) mSharePopup.dismiss(); 1493 if (mFaceView != null) mFaceView.clear(); 1494 1495 if (mFirstTimeInitialized) { 1496 mOrientationListener.disable(); 1497 if (mImageSaver != null) { 1498 mImageSaver.finish(); 1499 mImageSaver = null; 1500 } 1501 if (!mIsImageCaptureIntent && mThumbnail != null && !mThumbnail.fromFile()) { 1502 mThumbnail.saveTo(new File(getFilesDir(), Thumbnail.LAST_THUMB_FILENAME)); 1503 } 1504 } 1505 1506 if (mDidRegister) { 1507 unregisterReceiver(mReceiver); 1508 mDidRegister = false; 1509 } 1510 if (mLocationManager != null) mLocationManager.recordLocation(false); 1511 updateExposureOnScreenIndicator(0); 1512 1513 mFocusManager.releaseSoundPlayer(); 1514 1515 if (mStorageHint != null) { 1516 mStorageHint.cancel(); 1517 mStorageHint = null; 1518 } 1519 1520 // If we are in an image capture intent and has taken 1521 // a picture, we just clear it in onPause. 1522 mJpegImageData = null; 1523 1524 // Remove the messages in the event queue. 1525 mHandler.removeMessages(FIRST_TIME_INIT); 1526 mHandler.removeMessages(CHECK_DISPLAY_ROTATION); 1527 mFocusManager.removeMessages(); 1528 1529 super.onPause(); 1530 } 1531 1532 @Override 1533 protected void onActivityResult( 1534 int requestCode, int resultCode, Intent data) { 1535 switch (requestCode) { 1536 case CROP_MSG: { 1537 Intent intent = new Intent(); 1538 if (data != null) { 1539 Bundle extras = data.getExtras(); 1540 if (extras != null) { 1541 intent.putExtras(extras); 1542 } 1543 } 1544 setResultEx(resultCode, intent); 1545 finish(); 1546 1547 File path = getFileStreamPath(sTempCropFilename); 1548 path.delete(); 1549 1550 break; 1551 } 1552 } 1553 } 1554 1555 private boolean canTakePicture() { 1556 return isCameraIdle() && (mPicturesRemaining > 0); 1557 } 1558 1559 @Override 1560 public void autoFocus() { 1561 mFocusStartTime = System.currentTimeMillis(); 1562 mCameraDevice.autoFocus(mAutoFocusCallback); 1563 mCameraState = FOCUSING; 1564 enableCameraControls(false); 1565 } 1566 1567 @Override 1568 public void cancelAutoFocus() { 1569 mCameraDevice.cancelAutoFocus(); 1570 mCameraState = IDLE; 1571 enableCameraControls(true); 1572 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1573 } 1574 1575 // Preview area is touched. Handle touch focus. 1576 @Override 1577 public boolean onTouch(View v, MotionEvent e) { 1578 if (mPausing || mCameraDevice == null || !mFirstTimeInitialized 1579 || mCameraState == SNAPSHOT_IN_PROGRESS) { 1580 return false; 1581 } 1582 1583 // Do not trigger touch focus if popup window is opened. 1584 if (collapseCameraControls()) return false; 1585 1586 // Check if metering area or focus area is supported. 1587 if (!mFocusAreaSupported && !mMeteringAreaSupported) return false; 1588 1589 return mFocusManager.onTouch(e); 1590 } 1591 1592 @Override 1593 public void onBackPressed() { 1594 if (!isCameraIdle()) { 1595 // ignore backs while we're taking a picture 1596 return; 1597 } else if (!collapseCameraControls()) { 1598 super.onBackPressed(); 1599 } 1600 } 1601 1602 @Override 1603 public boolean onKeyDown(int keyCode, KeyEvent event) { 1604 switch (keyCode) { 1605 case KeyEvent.KEYCODE_FOCUS: 1606 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1607 onShutterButtonFocus(true); 1608 } 1609 return true; 1610 case KeyEvent.KEYCODE_CAMERA: 1611 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1612 onShutterButtonClick(); 1613 } 1614 return true; 1615 case KeyEvent.KEYCODE_DPAD_CENTER: 1616 // If we get a dpad center event without any focused view, move 1617 // the focus to the shutter button and press it. 1618 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1619 // Start auto-focus immediately to reduce shutter lag. After 1620 // the shutter button gets the focus, onShutterButtonFocus() 1621 // will be called again but it is fine. 1622 if (collapseCameraControls()) return true; 1623 onShutterButtonFocus(true); 1624 if (mShutterButton.isInTouchMode()) { 1625 mShutterButton.requestFocusFromTouch(); 1626 } else { 1627 mShutterButton.requestFocus(); 1628 } 1629 mShutterButton.setPressed(true); 1630 } 1631 return true; 1632 } 1633 1634 return super.onKeyDown(keyCode, event); 1635 } 1636 1637 @Override 1638 public boolean onKeyUp(int keyCode, KeyEvent event) { 1639 switch (keyCode) { 1640 case KeyEvent.KEYCODE_FOCUS: 1641 if (mFirstTimeInitialized) { 1642 onShutterButtonFocus(false); 1643 } 1644 return true; 1645 } 1646 return super.onKeyUp(keyCode, event); 1647 } 1648 1649 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1650 // Make sure we have a surface in the holder before proceeding. 1651 if (holder.getSurface() == null) { 1652 Log.d(TAG, "holder.getSurface() == null"); 1653 return; 1654 } 1655 1656 Log.v(TAG, "surfaceChanged. w=" + w + ". h=" + h); 1657 1658 // We need to save the holder for later use, even when the mCameraDevice 1659 // is null. This could happen if onResume() is invoked after this 1660 // function. 1661 mSurfaceHolder = holder; 1662 1663 // The mCameraDevice will be null if it fails to connect to the camera 1664 // hardware. In this case we will show a dialog and then finish the 1665 // activity, so it's OK to ignore it. 1666 if (mCameraDevice == null) return; 1667 1668 // Sometimes surfaceChanged is called after onPause or before onResume. 1669 // Ignore it. 1670 if (mPausing || isFinishing()) return; 1671 1672 // Set preview display if the surface is being created. Preview was 1673 // already started. Also restart the preview if display rotation has 1674 // changed. Sometimes this happens when the device is held in portrait 1675 // and camera app is opened. Rotation animation takes some time and 1676 // display rotation in onCreate may not be what we want. 1677 if (mCameraState == PREVIEW_STOPPED) { 1678 startPreview(); 1679 startFaceDetection(); 1680 } else { 1681 if (Util.getDisplayRotation(this) != mDisplayRotation) { 1682 setDisplayOrientation(); 1683 } 1684 if (holder.isCreating()) { 1685 // Set preview display if the surface is being created and preview 1686 // was already started. That means preview display was set to null 1687 // and we need to set it now. 1688 setPreviewDisplay(holder); 1689 } 1690 } 1691 1692 // If first time initialization is not finished, send a message to do 1693 // it later. We want to finish surfaceChanged as soon as possible to let 1694 // user see preview first. 1695 if (!mFirstTimeInitialized) { 1696 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1697 } else { 1698 initializeSecondTime(); 1699 } 1700 } 1701 1702 public void surfaceCreated(SurfaceHolder holder) { 1703 } 1704 1705 public void surfaceDestroyed(SurfaceHolder holder) { 1706 stopPreview(); 1707 mSurfaceHolder = null; 1708 } 1709 1710 private void closeCamera() { 1711 if (mCameraDevice != null) { 1712 CameraHolder.instance().release(); 1713 mCameraDevice.setZoomChangeListener(null); 1714 mCameraDevice.setFaceDetectionListener(null); 1715 mCameraDevice.setErrorCallback(null); 1716 mCameraDevice = null; 1717 mCameraState = PREVIEW_STOPPED; 1718 mFocusManager.onCameraReleased(); 1719 } 1720 } 1721 1722 private void setPreviewDisplay(SurfaceHolder holder) { 1723 try { 1724 mCameraDevice.setPreviewDisplay(holder); 1725 } catch (Throwable ex) { 1726 closeCamera(); 1727 throw new RuntimeException("setPreviewDisplay failed", ex); 1728 } 1729 } 1730 1731 private void setDisplayOrientation() { 1732 mDisplayRotation = Util.getDisplayRotation(this); 1733 mDisplayOrientation = Util.getDisplayOrientation(mDisplayRotation, mCameraId); 1734 mCameraDevice.setDisplayOrientation(mDisplayOrientation); 1735 if (mFaceView != null) { 1736 mFaceView.setDisplayOrientation(mDisplayOrientation); 1737 } 1738 } 1739 1740 private void startPreview() { 1741 if (mPausing || isFinishing()) return; 1742 1743 mFocusManager.resetTouchFocus(); 1744 1745 mCameraDevice.setErrorCallback(mErrorCallback); 1746 1747 // If we're previewing already, stop the preview first (this will blank 1748 // the screen). 1749 if (mCameraState != PREVIEW_STOPPED) stopPreview(); 1750 1751 setPreviewDisplay(mSurfaceHolder); 1752 setDisplayOrientation(); 1753 1754 mFocusManager.setAeAwbLock(false); // Unlock AE and AWB. 1755 setCameraParameters(UPDATE_PARAM_ALL); 1756 // If the focus mode is continuous autofocus, call cancelAutoFocus to 1757 // resume it because it may have been paused by autoFocus call. 1758 if (Parameters.FOCUS_MODE_CONTINUOUS_PICTURE.equals(mParameters.getFocusMode())) { 1759 mCameraDevice.cancelAutoFocus(); 1760 } 1761 1762 // Inform the mainthread to go on the UI initialization. 1763 if (mCameraPreviewThread != null) { 1764 synchronized (mCameraPreviewThread) { 1765 mCameraPreviewThread.notify(); 1766 } 1767 } 1768 1769 try { 1770 Log.v(TAG, "startPreview"); 1771 mCameraDevice.startPreview(); 1772 } catch (Throwable ex) { 1773 closeCamera(); 1774 throw new RuntimeException("startPreview failed", ex); 1775 } 1776 1777 mZoomState = ZOOM_STOPPED; 1778 mCameraState = IDLE; 1779 mFocusManager.onPreviewStarted(); 1780 1781 if (mSnapshotOnIdle) { 1782 mHandler.post(mDoSnapRunnable); 1783 } 1784 } 1785 1786 private void stopPreview() { 1787 if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) { 1788 Log.v(TAG, "stopPreview"); 1789 mCameraDevice.cancelAutoFocus(); // Reset the focus. 1790 mCameraDevice.stopPreview(); 1791 } 1792 mCameraState = PREVIEW_STOPPED; 1793 mFocusManager.onPreviewStopped(); 1794 } 1795 1796 private static boolean isSupported(String value, List<String> supported) { 1797 return supported == null ? false : supported.indexOf(value) >= 0; 1798 } 1799 1800 private void updateCameraParametersInitialize() { 1801 // Reset preview frame rate to the maximum because it may be lowered by 1802 // video camera application. 1803 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1804 if (frameRates != null) { 1805 Integer max = Collections.max(frameRates); 1806 mParameters.setPreviewFrameRate(max); 1807 } 1808 1809 mParameters.setRecordingHint(false); 1810 1811 // Disable video stabilization. Convenience methods not available in API 1812 // level <= 14 1813 String vstabSupported = mParameters.get("video-stabilization-supported"); 1814 if ("true".equals(vstabSupported)) { 1815 mParameters.set("video-stabilization", "false"); 1816 } 1817 } 1818 1819 private void updateCameraParametersZoom() { 1820 // Set zoom. 1821 if (mParameters.isZoomSupported()) { 1822 mParameters.setZoom(mZoomValue); 1823 } 1824 } 1825 1826 private void updateCameraParametersPreference() { 1827 if (mAeLockSupported) { 1828 mParameters.setAutoExposureLock(mFocusManager.getAeAwbLock()); 1829 } 1830 1831 if (mAwbLockSupported) { 1832 mParameters.setAutoWhiteBalanceLock(mFocusManager.getAeAwbLock()); 1833 } 1834 1835 if (mFocusAreaSupported) { 1836 mParameters.setFocusAreas(mFocusManager.getFocusAreas()); 1837 } 1838 1839 if (mMeteringAreaSupported) { 1840 // Use the same area for focus and metering. 1841 mParameters.setMeteringAreas(mFocusManager.getMeteringAreas()); 1842 } 1843 1844 // Set picture size. 1845 String pictureSize = mPreferences.getString( 1846 CameraSettings.KEY_PICTURE_SIZE, null); 1847 if (pictureSize == null) { 1848 CameraSettings.initialCameraPictureSize(this, mParameters); 1849 } else { 1850 List<Size> supported = mParameters.getSupportedPictureSizes(); 1851 CameraSettings.setCameraPictureSize( 1852 pictureSize, supported, mParameters); 1853 } 1854 1855 // Set the preview frame aspect ratio according to the picture size. 1856 Size size = mParameters.getPictureSize(); 1857 1858 mPreviewPanel = findViewById(R.id.frame_layout); 1859 mPreviewFrameLayout = (PreviewFrameLayout) findViewById(R.id.frame); 1860 mPreviewFrameLayout.setAspectRatio((double) size.width / size.height); 1861 1862 // Set a preview size that is closest to the viewfinder height and has 1863 // the right aspect ratio. 1864 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1865 Size optimalSize = Util.getOptimalPreviewSize(this, 1866 sizes, (double) size.width / size.height); 1867 Size original = mParameters.getPreviewSize(); 1868 if (!original.equals(optimalSize)) { 1869 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1870 1871 // Zoom related settings will be changed for different preview 1872 // sizes, so set and read the parameters to get lastest values 1873 mCameraDevice.setParameters(mParameters); 1874 mParameters = mCameraDevice.getParameters(); 1875 } 1876 Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height); 1877 1878 // Since change scene mode may change supported values, 1879 // Set scene mode first, 1880 mSceneMode = mPreferences.getString( 1881 CameraSettings.KEY_SCENE_MODE, 1882 getString(R.string.pref_camera_scenemode_default)); 1883 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 1884 if (!mParameters.getSceneMode().equals(mSceneMode)) { 1885 mParameters.setSceneMode(mSceneMode); 1886 mCameraDevice.setParameters(mParameters); 1887 1888 // Setting scene mode will change the settings of flash mode, 1889 // white balance, and focus mode. Here we read back the 1890 // parameters, so we can know those settings. 1891 mParameters = mCameraDevice.getParameters(); 1892 } 1893 } else { 1894 mSceneMode = mParameters.getSceneMode(); 1895 if (mSceneMode == null) { 1896 mSceneMode = Parameters.SCENE_MODE_AUTO; 1897 } 1898 } 1899 1900 // Set JPEG quality. 1901 int jpegQuality = CameraProfile.getJpegEncodingQualityParameter(mCameraId, 1902 CameraProfile.QUALITY_HIGH); 1903 mParameters.setJpegQuality(jpegQuality); 1904 1905 // For the following settings, we need to check if the settings are 1906 // still supported by latest driver, if not, ignore the settings. 1907 1908 // Set exposure compensation 1909 int value = CameraSettings.readExposure(mPreferences); 1910 int max = mParameters.getMaxExposureCompensation(); 1911 int min = mParameters.getMinExposureCompensation(); 1912 if (value >= min && value <= max) { 1913 mParameters.setExposureCompensation(value); 1914 } else { 1915 Log.w(TAG, "invalid exposure range: " + value); 1916 } 1917 1918 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1919 // Set flash mode. 1920 String flashMode = mPreferences.getString( 1921 CameraSettings.KEY_FLASH_MODE, 1922 getString(R.string.pref_camera_flashmode_default)); 1923 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 1924 if (isSupported(flashMode, supportedFlash)) { 1925 mParameters.setFlashMode(flashMode); 1926 } else { 1927 flashMode = mParameters.getFlashMode(); 1928 if (flashMode == null) { 1929 flashMode = getString( 1930 R.string.pref_camera_flashmode_no_flash); 1931 } 1932 } 1933 1934 // Set white balance parameter. 1935 String whiteBalance = mPreferences.getString( 1936 CameraSettings.KEY_WHITE_BALANCE, 1937 getString(R.string.pref_camera_whitebalance_default)); 1938 if (isSupported(whiteBalance, 1939 mParameters.getSupportedWhiteBalance())) { 1940 mParameters.setWhiteBalance(whiteBalance); 1941 } else { 1942 whiteBalance = mParameters.getWhiteBalance(); 1943 if (whiteBalance == null) { 1944 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 1945 } 1946 } 1947 1948 // Set focus mode. 1949 mFocusManager.overrideFocusMode(null); 1950 mParameters.setFocusMode(mFocusManager.getFocusMode()); 1951 } else { 1952 mFocusManager.overrideFocusMode(mParameters.getFocusMode()); 1953 } 1954 } 1955 1956 // We separate the parameters into several subsets, so we can update only 1957 // the subsets actually need updating. The PREFERENCE set needs extra 1958 // locking because the preference can be changed from GLThread as well. 1959 private void setCameraParameters(int updateSet) { 1960 mParameters = mCameraDevice.getParameters(); 1961 1962 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 1963 updateCameraParametersInitialize(); 1964 } 1965 1966 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 1967 updateCameraParametersZoom(); 1968 } 1969 1970 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 1971 updateCameraParametersPreference(); 1972 } 1973 1974 mCameraDevice.setParameters(mParameters); 1975 } 1976 1977 // If the Camera is idle, update the parameters immediately, otherwise 1978 // accumulate them in mUpdateSet and update later. 1979 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 1980 mUpdateSet |= additionalUpdateSet; 1981 if (mCameraDevice == null) { 1982 // We will update all the parameters when we open the device, so 1983 // we don't need to do anything now. 1984 mUpdateSet = 0; 1985 return; 1986 } else if (isCameraIdle()) { 1987 setCameraParameters(mUpdateSet); 1988 updateSceneModeUI(); 1989 mUpdateSet = 0; 1990 } else { 1991 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 1992 mHandler.sendEmptyMessageDelayed( 1993 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 1994 } 1995 } 1996 } 1997 1998 private void gotoGallery() { 1999 MenuHelper.gotoCameraImageGallery(this); 2000 } 2001 2002 private boolean isCameraIdle() { 2003 return (mCameraState == IDLE) || (mFocusManager.isFocusCompleted()); 2004 } 2005 2006 private boolean isImageCaptureIntent() { 2007 String action = getIntent().getAction(); 2008 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 2009 } 2010 2011 private void setupCaptureParams() { 2012 Bundle myExtras = getIntent().getExtras(); 2013 if (myExtras != null) { 2014 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 2015 mCropValue = myExtras.getString("crop"); 2016 } 2017 } 2018 2019 private void showPostCaptureAlert() { 2020 if (mIsImageCaptureIntent) { 2021 Util.fadeOut(mIndicatorControlContainer); 2022 Util.fadeOut(mShutterButton); 2023 2024 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2025 for (int id : pickIds) { 2026 Util.fadeIn(findViewById(id)); 2027 } 2028 } 2029 } 2030 2031 private void hidePostCaptureAlert() { 2032 if (mIsImageCaptureIntent) { 2033 enableCameraControls(true); 2034 2035 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2036 for (int id : pickIds) { 2037 Util.fadeOut(findViewById(id)); 2038 } 2039 2040 Util.fadeIn(mShutterButton); 2041 Util.fadeIn(mIndicatorControlContainer); 2042 } 2043 } 2044 2045 @Override 2046 public boolean onPrepareOptionsMenu(Menu menu) { 2047 super.onPrepareOptionsMenu(menu); 2048 // Only show the menu when camera is idle. 2049 for (int i = 0; i < menu.size(); i++) { 2050 menu.getItem(i).setVisible(isCameraIdle()); 2051 } 2052 2053 return true; 2054 } 2055 2056 @Override 2057 public boolean onCreateOptionsMenu(Menu menu) { 2058 super.onCreateOptionsMenu(menu); 2059 2060 if (mIsImageCaptureIntent) { 2061 // No options menu for attach mode. 2062 return false; 2063 } else { 2064 addBaseMenuItems(menu); 2065 } 2066 return true; 2067 } 2068 2069 private void addBaseMenuItems(Menu menu) { 2070 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_VIDEO, new Runnable() { 2071 public void run() { 2072 switchToOtherMode(ModePicker.MODE_VIDEO); 2073 } 2074 }); 2075 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_PANORAMA, new Runnable() { 2076 public void run() { 2077 switchToOtherMode(ModePicker.MODE_PANORAMA); 2078 } 2079 }); 2080 2081 if (mNumberOfCameras > 1) { 2082 menu.add(R.string.switch_camera_id) 2083 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2084 public boolean onMenuItemClick(MenuItem item) { 2085 CameraSettings.writePreferredCameraId(mPreferences, 2086 ((mCameraId == mFrontCameraId) 2087 ? mBackCameraId : mFrontCameraId)); 2088 onSharedPreferenceChanged(); 2089 return true; 2090 } 2091 }).setIcon(android.R.drawable.ic_menu_camera); 2092 } 2093 } 2094 2095 private boolean switchToOtherMode(int mode) { 2096 if (isFinishing()) return false; 2097 if (mImageSaver != null) mImageSaver.waitDone(); 2098 MenuHelper.gotoMode(mode, Camera.this); 2099 mHandler.removeMessages(FIRST_TIME_INIT); 2100 finish(); 2101 return true; 2102 } 2103 2104 public boolean onModeChanged(int mode) { 2105 if (mode != ModePicker.MODE_CAMERA) { 2106 return switchToOtherMode(mode); 2107 } else { 2108 return true; 2109 } 2110 } 2111 2112 public void onSharedPreferenceChanged() { 2113 // ignore the events after "onPause()" 2114 if (mPausing) return; 2115 2116 boolean recordLocation = RecordLocationPreference.get( 2117 mPreferences, getContentResolver()); 2118 mLocationManager.recordLocation(recordLocation); 2119 2120 int cameraId = CameraSettings.readPreferredCameraId(mPreferences); 2121 if (mCameraId != cameraId) { 2122 // Restart the activity to have a crossfade animation. 2123 // TODO: Use SurfaceTexture to implement a better and faster 2124 // animation. 2125 if (mIsImageCaptureIntent) { 2126 // If the intent is camera capture, stay in camera capture mode. 2127 MenuHelper.gotoCameraMode(this, getIntent()); 2128 } else { 2129 MenuHelper.gotoCameraMode(this); 2130 } 2131 2132 finish(); 2133 } else { 2134 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 2135 } 2136 2137 int exposureValue = CameraSettings.readExposure(mPreferences); 2138 updateExposureOnScreenIndicator(exposureValue); 2139 } 2140 2141 @Override 2142 public void onUserInteraction() { 2143 super.onUserInteraction(); 2144 keepScreenOnAwhile(); 2145 } 2146 2147 private void resetScreenOn() { 2148 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2149 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2150 } 2151 2152 private void keepScreenOnAwhile() { 2153 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2154 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2155 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2156 } 2157 2158 public void onRestorePreferencesClicked() { 2159 if (mPausing) return; 2160 Runnable runnable = new Runnable() { 2161 public void run() { 2162 restorePreferences(); 2163 } 2164 }; 2165 MenuHelper.confirmAction(this, 2166 getString(R.string.confirm_restore_title), 2167 getString(R.string.confirm_restore_message), 2168 runnable); 2169 } 2170 2171 private void restorePreferences() { 2172 // Reset the zoom. Zoom value is not stored in preference. 2173 if (mParameters.isZoomSupported()) { 2174 mZoomValue = 0; 2175 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 2176 mZoomControl.setZoomIndex(0); 2177 } 2178 if (mIndicatorControlContainer != null) { 2179 mIndicatorControlContainer.dismissSettingPopup(); 2180 CameraSettings.restorePreferences(Camera.this, mPreferences, 2181 mParameters); 2182 mIndicatorControlContainer.reloadPreferences(); 2183 onSharedPreferenceChanged(); 2184 } 2185 } 2186 2187 public void onOverriddenPreferencesClicked() { 2188 if (mPausing) return; 2189 if (mNotSelectableToast == null) { 2190 String str = getResources().getString(R.string.not_selectable_in_scene_mode); 2191 mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT); 2192 } 2193 mNotSelectableToast.show(); 2194 } 2195 2196 private void showSharePopup() { 2197 mImageSaver.waitDone(); 2198 Uri uri = mThumbnail.getUri(); 2199 if (mSharePopup == null || !uri.equals(mSharePopup.getUri())) { 2200 // SharePopup window takes the mPreviewPanel as its size reference. 2201 mSharePopup = new SharePopup(this, uri, mThumbnail.getBitmap(), 2202 mOrientationCompensation, mPreviewPanel); 2203 } 2204 mSharePopup.showAtLocation(mThumbnailView, Gravity.NO_GRAVITY, 0, 0); 2205 } 2206 2207 @Override 2208 public void onFaceDetection(Face[] faces, android.hardware.Camera camera) { 2209 mFaceView.setFaces(faces); 2210 } 2211 2212 private void showTapToFocusToast() { 2213 // Show the toast. 2214 RotateLayout v = (RotateLayout) findViewById(R.id.tap_to_focus_prompt); 2215 v.setOrientation(mOrientationCompensation); 2216 v.startAnimation(AnimationUtils.loadAnimation(this, R.anim.on_screen_hint_enter)); 2217 v.setVisibility(View.VISIBLE); 2218 mHandler.sendEmptyMessageDelayed(DISMISS_TAP_TO_FOCUS_TOAST, 5000); 2219 // Clear the preference. 2220 Editor editor = mPreferences.edit(); 2221 editor.putBoolean(CameraSettings.KEY_TAP_TO_FOCUS_PROMPT_SHOWN, false); 2222 editor.apply(); 2223 } 2224 2225 private void initializeCapabilities() { 2226 mInitialParams = mCameraDevice.getParameters(); 2227 mFocusManager.initializeParameters(mInitialParams); 2228 mFocusAreaSupported = (mInitialParams.getMaxNumFocusAreas() > 0 2229 && isSupported(Parameters.FOCUS_MODE_AUTO, 2230 mInitialParams.getSupportedFocusModes())); 2231 mMeteringAreaSupported = (mInitialParams.getMaxNumMeteringAreas() > 0); 2232 mAeLockSupported = mInitialParams.isAutoExposureLockSupported(); 2233 mAwbLockSupported = mInitialParams.isAutoWhiteBalanceLockSupported(); 2234 } 2235} 2236