Camera.java revision ea312297ff6132bbafed99b90a72e4858b888fa4
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.camera; 18 19import com.android.camera.ui.CameraPicker; 20import com.android.camera.ui.FaceView; 21import com.android.camera.ui.IndicatorControlContainer; 22import com.android.camera.ui.RotateImageView; 23import com.android.camera.ui.RotateLayout; 24import com.android.camera.ui.SharePopup; 25import com.android.camera.ui.ZoomControl; 26 27import android.app.Activity; 28import android.content.BroadcastReceiver; 29import android.content.ContentProviderClient; 30import android.content.ContentResolver; 31import android.content.Context; 32import android.content.Intent; 33import android.content.IntentFilter; 34import android.content.SharedPreferences.Editor; 35import android.graphics.Bitmap; 36import android.hardware.Camera.CameraInfo; 37import android.hardware.Camera.Face; 38import android.hardware.Camera.FaceDetectionListener; 39import android.hardware.Camera.Parameters; 40import android.hardware.Camera.PictureCallback; 41import android.hardware.Camera.Size; 42import android.location.Location; 43import android.media.CameraProfile; 44import android.net.Uri; 45import android.os.Bundle; 46import android.os.Handler; 47import android.os.Looper; 48import android.os.Message; 49import android.os.MessageQueue; 50import android.os.SystemClock; 51import android.provider.MediaStore; 52import android.util.Log; 53import android.view.GestureDetector; 54import android.view.Gravity; 55import android.view.KeyEvent; 56import android.view.Menu; 57import android.view.MenuItem; 58import android.view.MenuItem.OnMenuItemClickListener; 59import android.view.MotionEvent; 60import android.view.OrientationEventListener; 61import android.view.SurfaceHolder; 62import android.view.SurfaceView; 63import android.view.View; 64import android.view.WindowManager; 65import android.view.animation.AnimationUtils; 66import android.widget.TextView; 67import android.widget.Toast; 68 69import java.io.File; 70import java.io.FileNotFoundException; 71import java.io.FileOutputStream; 72import java.io.IOException; 73import java.io.OutputStream; 74import java.util.Collections; 75import java.util.Formatter; 76import java.util.List; 77 78/** The Camera activity which can preview and take pictures. */ 79public class Camera extends ActivityBase implements FocusManager.Listener, 80 View.OnTouchListener, ShutterButton.OnShutterButtonListener, 81 SurfaceHolder.Callback, ModePicker.OnModeChangeListener, 82 FaceDetectionListener, CameraPreference.OnPreferenceChangedListener, 83 LocationManager.Listener { 84 85 private static final String TAG = "camera"; 86 87 private static final int CROP_MSG = 1; 88 private static final int FIRST_TIME_INIT = 2; 89 private static final int CLEAR_SCREEN_DELAY = 3; 90 private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 4; 91 private static final int CHECK_DISPLAY_ROTATION = 5; 92 private static final int SHOW_TAP_TO_FOCUS_TOAST = 6; 93 private static final int DISMISS_TAP_TO_FOCUS_TOAST = 7; 94 95 // The subset of parameters we need to update in setCameraParameters(). 96 private static final int UPDATE_PARAM_INITIALIZE = 1; 97 private static final int UPDATE_PARAM_ZOOM = 2; 98 private static final int UPDATE_PARAM_PREFERENCE = 4; 99 private static final int UPDATE_PARAM_ALL = -1; 100 101 // When setCameraParametersWhenIdle() is called, we accumulate the subsets 102 // needed to be updated in mUpdateSet. 103 private int mUpdateSet; 104 105 private static final int SCREEN_DELAY = 2 * 60 * 1000; 106 107 private static final int ZOOM_STOPPED = 0; 108 private static final int ZOOM_START = 1; 109 private static final int ZOOM_STOPPING = 2; 110 111 private int mZoomState = ZOOM_STOPPED; 112 private boolean mSmoothZoomSupported = false; 113 private int mZoomValue; // The current zoom value. 114 private int mZoomMax; 115 private int mTargetZoomValue; 116 private ZoomControl mZoomControl; 117 118 private Parameters mParameters; 119 private Parameters mInitialParams; 120 private boolean mFocusAreaSupported; 121 private boolean mMeteringAreaSupported; 122 private boolean mAwbLockSupported; 123 private boolean mAeLockSupported; 124 private boolean mAeAwbLock; 125 126 private MyOrientationEventListener mOrientationListener; 127 // The degrees of the device rotated clockwise from its natural orientation. 128 private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 129 // The orientation compensation for icons and thumbnails. Ex: if the value 130 // is 90, the UI components should be rotated 90 degrees counter-clockwise. 131 private int mOrientationCompensation = 0; 132 private ComboPreferences mPreferences; 133 134 private static final String sTempCropFilename = "crop-temp"; 135 136 private android.hardware.Camera mCameraDevice; 137 private ContentProviderClient mMediaProviderClient; 138 private SurfaceHolder mSurfaceHolder = null; 139 private ShutterButton mShutterButton; 140 private GestureDetector mPopupGestureDetector; 141 private boolean mOpenCameraFail = false; 142 private boolean mCameraDisabled = false; 143 144 private View mPreviewPanel; // The container of PreviewFrameLayout. 145 private PreviewFrameLayout mPreviewFrameLayout; 146 private View mPreviewFrame; // Preview frame area. 147 148 // A popup window that contains a bigger thumbnail and a list of apps to share. 149 private SharePopup mSharePopup; 150 // The bitmap of the last captured picture thumbnail and the URI of the 151 // original picture. 152 private Thumbnail mThumbnail; 153 // An imageview showing showing the last captured picture thumbnail. 154 private RotateImageView mThumbnailView; 155 private ModePicker mModePicker; 156 private FaceView mFaceView; 157 private RotateLayout mFocusIndicator; 158 159 // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. 160 private String mCropValue; 161 private Uri mSaveUri; 162 163 // On-screen indicator 164 private View mGpsNoSignalIndicator; 165 private View mGpsHasSignalIndicator; 166 private TextView mExposureIndicator; 167 168 private final StringBuilder mBuilder = new StringBuilder(); 169 private final Formatter mFormatter = new Formatter(mBuilder); 170 private final Object[] mFormatterArgs = new Object[1]; 171 172 /** 173 * An unpublished intent flag requesting to return as soon as capturing 174 * is completed. 175 * 176 * TODO: consider publishing by moving into MediaStore. 177 */ 178 private final static String EXTRA_QUICK_CAPTURE = 179 "android.intent.extra.quickCapture"; 180 181 // The display rotation in degrees. This is only valid when mCameraState is 182 // not PREVIEW_STOPPED. 183 private int mDisplayRotation; 184 // The value for android.hardware.Camera.setDisplayOrientation. 185 private int mDisplayOrientation; 186 private boolean mPausing; 187 private boolean mFirstTimeInitialized; 188 private boolean mIsImageCaptureIntent; 189 190 private static final int PREVIEW_STOPPED = 0; 191 private static final int IDLE = 1; // preview is active 192 // Focus is in progress. The exact focus state is in Focus.java. 193 private static final int FOCUSING = 2; 194 private static final int SNAPSHOT_IN_PROGRESS = 3; 195 private int mCameraState = PREVIEW_STOPPED; 196 197 private ContentResolver mContentResolver; 198 private boolean mDidRegister = false; 199 200 private LocationManager mLocationManager; 201 202 private final ShutterCallback mShutterCallback = new ShutterCallback(); 203 private final PostViewPictureCallback mPostViewPictureCallback = 204 new PostViewPictureCallback(); 205 private final RawPictureCallback mRawPictureCallback = 206 new RawPictureCallback(); 207 private final AutoFocusCallback mAutoFocusCallback = 208 new AutoFocusCallback(); 209 private final ZoomListener mZoomListener = new ZoomListener(); 210 private final CameraErrorCallback mErrorCallback = new CameraErrorCallback(); 211 212 private long mFocusStartTime; 213 private long mCaptureStartTime; 214 private long mShutterCallbackTime; 215 private long mPostViewPictureCallbackTime; 216 private long mRawPictureCallbackTime; 217 private long mJpegPictureCallbackTime; 218 private long mOnResumeTime; 219 private long mPicturesRemaining; 220 private byte[] mJpegImageData; 221 222 // These latency time are for the CameraLatency test. 223 public long mAutoFocusTime; 224 public long mShutterLag; 225 public long mShutterToPictureDisplayedTime; 226 public long mPictureDisplayedToJpegCallbackTime; 227 public long mJpegCallbackFinishTime; 228 229 // This handles everything about focus. 230 private FocusManager mFocusManager; 231 private String mSceneMode; 232 private Toast mNotSelectableToast; 233 private Toast mNoShareToast; 234 235 private final Handler mHandler = new MainHandler(); 236 private IndicatorControlContainer mIndicatorControlContainer; 237 private PreferenceGroup mPreferenceGroup; 238 239 // multiple cameras support 240 private int mNumberOfCameras; 241 private int mCameraId; 242 private int mFrontCameraId; 243 private int mBackCameraId; 244 245 private boolean mQuickCapture; 246 247 /** 248 * This Handler is used to post message back onto the main thread of the 249 * application 250 */ 251 private class MainHandler extends Handler { 252 @Override 253 public void handleMessage(Message msg) { 254 switch (msg.what) { 255 case CLEAR_SCREEN_DELAY: { 256 getWindow().clearFlags( 257 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 258 break; 259 } 260 261 case FIRST_TIME_INIT: { 262 initializeFirstTime(); 263 break; 264 } 265 266 case SET_CAMERA_PARAMETERS_WHEN_IDLE: { 267 setCameraParametersWhenIdle(0); 268 break; 269 } 270 271 case CHECK_DISPLAY_ROTATION: { 272 // Restart the preview if display rotation has changed. 273 // Sometimes this happens when the device is held upside 274 // down and camera app is opened. Rotation animation will 275 // take some time and the rotation value we have got may be 276 // wrong. Framework does not have a callback for this now. 277 if (Util.getDisplayRotation(Camera.this) != mDisplayRotation 278 && isCameraIdle()) { 279 startPreview(); 280 } 281 if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) { 282 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 283 } 284 break; 285 } 286 287 case SHOW_TAP_TO_FOCUS_TOAST: { 288 showTapToFocusToast(); 289 break; 290 } 291 292 case DISMISS_TAP_TO_FOCUS_TOAST: { 293 View v = findViewById(R.id.tap_to_focus_prompt); 294 v.setVisibility(View.GONE); 295 v.setAnimation(AnimationUtils.loadAnimation(Camera.this, 296 R.anim.on_screen_hint_exit)); 297 break; 298 } 299 } 300 } 301 } 302 303 private void resetExposureCompensation() { 304 String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, 305 CameraSettings.EXPOSURE_DEFAULT_VALUE); 306 if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { 307 Editor editor = mPreferences.edit(); 308 editor.putString(CameraSettings.KEY_EXPOSURE, "0"); 309 editor.apply(); 310 if (mIndicatorControlContainer != null) { 311 mIndicatorControlContainer.reloadPreferences(); 312 } 313 } 314 } 315 316 private void keepMediaProviderInstance() { 317 // We want to keep a reference to MediaProvider in camera's lifecycle. 318 // TODO: Utilize mMediaProviderClient instance to replace 319 // ContentResolver calls. 320 if (mMediaProviderClient == null) { 321 mMediaProviderClient = getContentResolver() 322 .acquireContentProviderClient(MediaStore.AUTHORITY); 323 } 324 } 325 326 // Snapshots can only be taken after this is called. It should be called 327 // once only. We could have done these things in onCreate() but we want to 328 // make preview screen appear as soon as possible. 329 private void initializeFirstTime() { 330 if (mFirstTimeInitialized) return; 331 332 // Create orientation listenter. This should be done first because it 333 // takes some time to get first orientation. 334 mOrientationListener = new MyOrientationEventListener(Camera.this); 335 mOrientationListener.enable(); 336 337 // Initialize location sevice. 338 boolean recordLocation = RecordLocationPreference.get( 339 mPreferences, getContentResolver()); 340 initOnScreenIndicator(); 341 mLocationManager.recordLocation(recordLocation); 342 343 keepMediaProviderInstance(); 344 checkStorage(); 345 346 // Initialize last picture button. 347 mContentResolver = getContentResolver(); 348 if (!mIsImageCaptureIntent) { // no thumbnail in image capture intent 349 initThumbnailButton(); 350 } 351 352 // Initialize shutter button. 353 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 354 mShutterButton.setOnShutterButtonListener(this); 355 mShutterButton.setVisibility(View.VISIBLE); 356 357 // Initialize focus UI. 358 mPreviewFrame = findViewById(R.id.camera_preview); 359 mPreviewFrame.setOnTouchListener(this); 360 mFocusIndicator = (RotateLayout) findViewById(R.id.focus_indicator_rotate_layout); 361 mFocusManager.initialize(mFocusIndicator, mPreviewFrame, mFaceView, this); 362 mFocusManager.initializeToneGenerator(); 363 Util.initializeScreenBrightness(getWindow(), getContentResolver()); 364 installIntentFilter(); 365 initializeZoom(); 366 // Show the tap to focus toast if this is the first start. 367 if (mFocusAreaSupported && 368 mPreferences.getBoolean(CameraSettings.KEY_TAP_TO_FOCUS_PROMPT_SHOWN, true)) { 369 // Delay the toast for one second to wait for orientation. 370 mHandler.sendEmptyMessageDelayed(SHOW_TAP_TO_FOCUS_TOAST, 1000); 371 } 372 373 mFirstTimeInitialized = true; 374 addIdleHandler(); 375 } 376 377 private void addIdleHandler() { 378 MessageQueue queue = Looper.myQueue(); 379 queue.addIdleHandler(new MessageQueue.IdleHandler() { 380 public boolean queueIdle() { 381 Storage.ensureOSXCompatible(); 382 return false; 383 } 384 }); 385 } 386 387 private void initThumbnailButton() { 388 // Load the thumbnail from the disk. 389 mThumbnail = Thumbnail.loadFrom(new File(getFilesDir(), Thumbnail.LAST_THUMB_FILENAME)); 390 updateThumbnailButton(); 391 } 392 393 private void updateThumbnailButton() { 394 // Update last image if URI is invalid and the storage is ready. 395 if ((mThumbnail == null || !Util.isUriValid(mThumbnail.getUri(), mContentResolver)) 396 && mPicturesRemaining >= 0) { 397 mThumbnail = Thumbnail.getLastThumbnail(mContentResolver); 398 } 399 if (mThumbnail != null) { 400 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 401 } else { 402 mThumbnailView.setBitmap(null); 403 } 404 } 405 406 // If the activity is paused and resumed, this method will be called in 407 // onResume. 408 private void initializeSecondTime() { 409 // Start orientation listener as soon as possible because it takes 410 // some time to get first orientation. 411 mOrientationListener.enable(); 412 413 // Start location update if needed. 414 boolean recordLocation = RecordLocationPreference.get( 415 mPreferences, getContentResolver()); 416 mLocationManager.recordLocation(recordLocation); 417 418 installIntentFilter(); 419 mFocusManager.initializeToneGenerator(); 420 initializeZoom(); 421 keepMediaProviderInstance(); 422 checkStorage(); 423 hidePostCaptureAlert(); 424 425 if (!mIsImageCaptureIntent) { 426 updateThumbnailButton(); 427 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 428 } 429 } 430 431 private class ZoomChangeListener implements ZoomControl.OnZoomChangedListener { 432 // only for immediate zoom 433 @Override 434 public void onZoomValueChanged(int index) { 435 Camera.this.onZoomValueChanged(index); 436 } 437 438 // only for smooth zoom 439 @Override 440 public void onZoomStateChanged(int state) { 441 if (mPausing) return; 442 443 Log.v(TAG, "zoom picker state=" + state); 444 if (state == ZoomControl.ZOOM_IN) { 445 Camera.this.onZoomValueChanged(mZoomMax); 446 } else if (state == ZoomControl.ZOOM_OUT) { 447 Camera.this.onZoomValueChanged(0); 448 } else { 449 mTargetZoomValue = -1; 450 if (mZoomState == ZOOM_START) { 451 mZoomState = ZOOM_STOPPING; 452 mCameraDevice.stopSmoothZoom(); 453 } 454 } 455 } 456 } 457 458 private void initializeZoom() { 459 if (!mParameters.isZoomSupported()) return; 460 mZoomMax = mParameters.getMaxZoom(); 461 // Currently we use immediate zoom for fast zooming to get better UX and 462 // there is no plan to take advantage of the smooth zoom. 463 mZoomControl.setZoomMax(mZoomMax); 464 mZoomControl.setZoomIndex(mParameters.getZoom()); 465 mZoomControl.setSmoothZoomSupported(mSmoothZoomSupported); 466 mZoomControl.setOnZoomChangeListener(new ZoomChangeListener()); 467 mCameraDevice.setZoomChangeListener(mZoomListener); 468 } 469 470 private void onZoomValueChanged(int index) { 471 // Not useful to change zoom value when the activity is paused. 472 if (mPausing) return; 473 474 if (mSmoothZoomSupported) { 475 if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { 476 mTargetZoomValue = index; 477 if (mZoomState == ZOOM_START) { 478 mZoomState = ZOOM_STOPPING; 479 mCameraDevice.stopSmoothZoom(); 480 } 481 } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { 482 mTargetZoomValue = index; 483 mCameraDevice.startSmoothZoom(index); 484 mZoomState = ZOOM_START; 485 } 486 } else { 487 mZoomValue = index; 488 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 489 } 490 } 491 492 @Override 493 public void startFaceDetection() { 494 if (mParameters.getMaxNumDetectedFaces() > 0) { 495 mFaceView = (FaceView) findViewById(R.id.face_view); 496 mFaceView.clear(); 497 mFaceView.setVisibility(View.VISIBLE); 498 mFaceView.setDisplayOrientation(mDisplayOrientation); 499 CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; 500 mFaceView.setMirror(info.facing == CameraInfo.CAMERA_FACING_FRONT); 501 mFaceView.resume(); 502 mCameraDevice.setFaceDetectionListener(this); 503 mCameraDevice.startFaceDetection(); 504 } 505 } 506 507 @Override 508 public void stopFaceDetection() { 509 if (mParameters.getMaxNumDetectedFaces() > 0) { 510 mCameraDevice.setFaceDetectionListener(null); 511 mCameraDevice.stopFaceDetection(); 512 if (mFaceView != null) mFaceView.clear(); 513 } 514 } 515 516 private class PopupGestureListener 517 extends GestureDetector.SimpleOnGestureListener { 518 @Override 519 public boolean onDown(MotionEvent e) { 520 // Check if the popup window is visible. 521 View popup = mIndicatorControlContainer.getActiveSettingPopup(); 522 if (popup == null) return false; 523 524 525 // Let popup window, indicator control or preview frame handle the 526 // event by themselves. Dismiss the popup window if users touch on 527 // other areas. 528 if (!Util.pointInView(e.getX(), e.getY(), popup) 529 && !Util.pointInView(e.getX(), e.getY(), mIndicatorControlContainer) 530 && !Util.pointInView(e.getX(), e.getY(), mPreviewFrame)) { 531 mIndicatorControlContainer.dismissSettingPopup(); 532 // Let event fall through. 533 } 534 return false; 535 } 536 } 537 538 @Override 539 public boolean dispatchTouchEvent(MotionEvent m) { 540 // Check if the popup window should be dismissed first. 541 if (mPopupGestureDetector != null && mPopupGestureDetector.onTouchEvent(m)) { 542 return true; 543 } 544 545 return super.dispatchTouchEvent(m); 546 } 547 548 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 549 @Override 550 public void onReceive(Context context, Intent intent) { 551 String action = intent.getAction(); 552 Log.d(TAG, "Received intent action=" + action); 553 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 554 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 555 || action.equals(Intent.ACTION_MEDIA_CHECKING)) { 556 checkStorage(); 557 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 558 checkStorage(); 559 if (!mIsImageCaptureIntent) { 560 updateThumbnailButton(); 561 } 562 } 563 } 564 }; 565 566 private void initOnScreenIndicator() { 567 mGpsNoSignalIndicator = findViewById(R.id.onscreen_gps_indicator_no_signal); 568 mGpsHasSignalIndicator = findViewById(R.id.onscreen_gps_indicator_on); 569 mExposureIndicator = (TextView) findViewById(R.id.onscreen_exposure_indicator); 570 } 571 572 @Override 573 public void showGpsOnScreenIndicator(boolean hasSignal) { 574 if (hasSignal) { 575 if (mGpsNoSignalIndicator != null) { 576 mGpsNoSignalIndicator.setVisibility(View.GONE); 577 } 578 if (mGpsHasSignalIndicator != null) { 579 mGpsHasSignalIndicator.setVisibility(View.VISIBLE); 580 } 581 } else { 582 if (mGpsNoSignalIndicator != null) { 583 mGpsNoSignalIndicator.setVisibility(View.VISIBLE); 584 } 585 if (mGpsHasSignalIndicator != null) { 586 mGpsHasSignalIndicator.setVisibility(View.GONE); 587 } 588 } 589 } 590 591 @Override 592 public void hideGpsOnScreenIndicator() { 593 if (mGpsNoSignalIndicator != null) mGpsNoSignalIndicator.setVisibility(View.GONE); 594 if (mGpsHasSignalIndicator != null) mGpsHasSignalIndicator.setVisibility(View.GONE); 595 } 596 597 private void updateExposureOnScreenIndicator(int value) { 598 if (mExposureIndicator == null) return; 599 600 if (value == 0) { 601 mExposureIndicator.setText(""); 602 mExposureIndicator.setVisibility(View.GONE); 603 } else { 604 float step = mParameters.getExposureCompensationStep(); 605 mFormatterArgs[0] = value * step; 606 mBuilder.delete(0, mBuilder.length()); 607 mFormatter.format("%+1.1f", mFormatterArgs); 608 String exposure = mFormatter.toString(); 609 mExposureIndicator.setText(exposure); 610 mExposureIndicator.setVisibility(View.VISIBLE); 611 } 612 } 613 614 private final class ShutterCallback 615 implements android.hardware.Camera.ShutterCallback { 616 public void onShutter() { 617 mShutterCallbackTime = System.currentTimeMillis(); 618 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 619 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 620 mFocusManager.onShutter(); 621 } 622 } 623 624 private final class PostViewPictureCallback implements PictureCallback { 625 public void onPictureTaken( 626 byte [] data, android.hardware.Camera camera) { 627 mPostViewPictureCallbackTime = System.currentTimeMillis(); 628 Log.v(TAG, "mShutterToPostViewCallbackTime = " 629 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 630 + "ms"); 631 } 632 } 633 634 private final class RawPictureCallback implements PictureCallback { 635 public void onPictureTaken( 636 byte [] rawData, android.hardware.Camera camera) { 637 mRawPictureCallbackTime = System.currentTimeMillis(); 638 Log.v(TAG, "mShutterToRawCallbackTime = " 639 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 640 } 641 } 642 643 private final class JpegPictureCallback implements PictureCallback { 644 Location mLocation; 645 646 public JpegPictureCallback(Location loc) { 647 mLocation = loc; 648 } 649 650 public void onPictureTaken( 651 final byte [] jpegData, final android.hardware.Camera camera) { 652 if (mPausing) { 653 return; 654 } 655 656 mJpegPictureCallbackTime = System.currentTimeMillis(); 657 // If postview callback has arrived, the captured image is displayed 658 // in postview callback. If not, the captured image is displayed in 659 // raw picture callback. 660 if (mPostViewPictureCallbackTime != 0) { 661 mShutterToPictureDisplayedTime = 662 mPostViewPictureCallbackTime - mShutterCallbackTime; 663 mPictureDisplayedToJpegCallbackTime = 664 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 665 } else { 666 mShutterToPictureDisplayedTime = 667 mRawPictureCallbackTime - mShutterCallbackTime; 668 mPictureDisplayedToJpegCallbackTime = 669 mJpegPictureCallbackTime - mRawPictureCallbackTime; 670 } 671 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 672 + mPictureDisplayedToJpegCallbackTime + "ms"); 673 674 if (!mIsImageCaptureIntent) { 675 enableCameraControls(true); 676 677 startPreview(); 678 } 679 680 if (!mIsImageCaptureIntent) { 681 Size s = mParameters.getPictureSize(); 682 storeImage(jpegData, mLocation, s.width, s.height); 683 } else { 684 mJpegImageData = jpegData; 685 if (!mQuickCapture) { 686 showPostCaptureAlert(); 687 } else { 688 doAttach(); 689 } 690 } 691 692 // Check this in advance of each shot so we don't add to shutter 693 // latency. It's true that someone else could write to the SD card in 694 // the mean time and fill it, but that could have happened between the 695 // shutter press and saving the JPEG too. 696 checkStorage(); 697 698 long now = System.currentTimeMillis(); 699 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 700 Log.v(TAG, "mJpegCallbackFinishTime = " 701 + mJpegCallbackFinishTime + "ms"); 702 mJpegPictureCallbackTime = 0; 703 } 704 } 705 706 private final class AutoFocusCallback 707 implements android.hardware.Camera.AutoFocusCallback { 708 public void onAutoFocus( 709 boolean focused, android.hardware.Camera camera) { 710 if (mPausing) return; 711 712 mAutoFocusTime = System.currentTimeMillis() - mFocusStartTime; 713 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 714 mFocusManager.onAutoFocus(focused); 715 // If focus completes and the snapshot is not started, enable the 716 // controls. 717 if (mFocusManager.isFocusCompleted()) { 718 enableCameraControls(true); 719 } 720 } 721 } 722 723 private final class ZoomListener 724 implements android.hardware.Camera.OnZoomChangeListener { 725 @Override 726 public void onZoomChange( 727 int value, boolean stopped, android.hardware.Camera camera) { 728 Log.v(TAG, "Zoom changed: value=" + value + ". stopped=" + stopped); 729 mZoomValue = value; 730 731 // Update the UI when we get zoom value. 732 mZoomControl.setZoomIndex(value); 733 734 // Keep mParameters up to date. We do not getParameter again in 735 // takePicture. If we do not do this, wrong zoom value will be set. 736 mParameters.setZoom(value); 737 738 if (stopped && mZoomState != ZOOM_STOPPED) { 739 if (mTargetZoomValue != -1 && value != mTargetZoomValue) { 740 mCameraDevice.startSmoothZoom(mTargetZoomValue); 741 mZoomState = ZOOM_START; 742 } else { 743 mZoomState = ZOOM_STOPPED; 744 } 745 } 746 } 747 } 748 749 private void storeImage(final byte[] data, Location loc, int width, int height) { 750 long dateTaken = System.currentTimeMillis(); 751 String title = Util.createJpegName(dateTaken); 752 int orientation = Exif.getOrientation(data); 753 Uri uri = Storage.addImage(mContentResolver, title, dateTaken, 754 loc, orientation, data, width, height); 755 if (uri != null) { 756 // Create a thumbnail whose width is equal or bigger than that of the preview. 757 int ratio = (int) Math.ceil((double) mParameters.getPictureSize().width 758 / mPreviewFrameLayout.getWidth()); 759 int inSampleSize = Integer.highestOneBit(ratio); 760 mThumbnail = Thumbnail.createThumbnail(data, orientation, inSampleSize, uri); 761 if (mThumbnail != null) { 762 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 763 } 764 // Share popup may still have the reference to the old thumbnail. Clear it. 765 mSharePopup = null; 766 Util.broadcastNewPicture(this, uri); 767 } 768 } 769 770 @Override 771 public boolean capture() { 772 // If we are already in the middle of taking a snapshot then ignore. 773 if (mCameraState == SNAPSHOT_IN_PROGRESS || mCameraDevice == null) { 774 return false; 775 } 776 mCaptureStartTime = System.currentTimeMillis(); 777 mPostViewPictureCallbackTime = 0; 778 enableCameraControls(false); 779 mJpegImageData = null; 780 781 // Set rotation and gps data. 782 Util.setRotationParameter(mParameters, mCameraId, mOrientation); 783 Location loc = mLocationManager.getCurrentLocation(); 784 Util.setGpsParameters(mParameters, loc); 785 mCameraDevice.setParameters(mParameters); 786 787 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 788 mPostViewPictureCallback, new JpegPictureCallback(loc)); 789 mCameraState = SNAPSHOT_IN_PROGRESS; 790 return true; 791 } 792 793 @Override 794 public void setFocusParameters() { 795 setCameraParameters(UPDATE_PARAM_PREFERENCE); 796 } 797 798 private boolean saveDataToFile(String filePath, byte[] data) { 799 FileOutputStream f = null; 800 try { 801 f = new FileOutputStream(filePath); 802 f.write(data); 803 } catch (IOException e) { 804 return false; 805 } finally { 806 Util.closeSilently(f); 807 } 808 return true; 809 } 810 811 @Override 812 public void onCreate(Bundle icicle) { 813 super.onCreate(icicle); 814 815 mIsImageCaptureIntent = isImageCaptureIntent(); 816 setContentView(R.layout.camera); 817 if (mIsImageCaptureIntent) { 818 findViewById(R.id.btn_cancel).setVisibility(View.VISIBLE); 819 } else { 820 mThumbnailView = (RotateImageView) findViewById(R.id.thumbnail); 821 mThumbnailView.setVisibility(View.VISIBLE); 822 } 823 824 mPreferences = new ComboPreferences(this); 825 CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal()); 826 mFocusManager = new FocusManager(mPreferences, 827 getString(R.string.pref_camera_focusmode_default)); 828 829 mCameraId = CameraSettings.readPreferredCameraId(mPreferences); 830 831 // Testing purpose. Launch a specific camera through the intent extras. 832 int intentCameraId = Util.getCameraFacingIntentExtras(this); 833 if (intentCameraId != -1) { 834 mCameraId = intentCameraId; 835 } 836 837 mPreferences.setLocalId(this, mCameraId); 838 CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); 839 840 mNumberOfCameras = CameraHolder.instance().getNumberOfCameras(); 841 mQuickCapture = getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false); 842 843 // we need to reset exposure for the preview 844 resetExposureCompensation(); 845 846 /* 847 * To reduce startup time, we start the preview in another thread. 848 * We make sure the preview is started at the end of onCreate. 849 */ 850 Thread startPreviewThread = new Thread(new Runnable() { 851 public void run() { 852 try { 853 mCameraDevice = Util.openCamera(Camera.this, mCameraId); 854 initializeCapabilities(); 855 startPreview(); 856 } catch (CameraHardwareException e) { 857 mOpenCameraFail = true; 858 } catch (CameraDisabledException e) { 859 mCameraDisabled = true; 860 } 861 } 862 }); 863 startPreviewThread.start(); 864 865 Util.enterLightsOutMode(getWindow()); 866 867 // don't set mSurfaceHolder here. We have it set ONLY within 868 // surfaceChanged / surfaceDestroyed, other parts of the code 869 // assume that when it is set, the surface is also set. 870 SurfaceView preview = (SurfaceView) findViewById(R.id.camera_preview); 871 SurfaceHolder holder = preview.getHolder(); 872 holder.addCallback(this); 873 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 874 875 if (mIsImageCaptureIntent) { 876 setupCaptureParams(); 877 } else { 878 mModePicker = (ModePicker) findViewById(R.id.mode_picker); 879 mModePicker.setVisibility(View.VISIBLE); 880 mModePicker.setOnModeChangeListener(this); 881 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 882 } 883 884 mZoomControl = (ZoomControl) findViewById(R.id.zoom_control); 885 mLocationManager = new LocationManager(this, this); 886 887 // Make sure preview is started. 888 try { 889 startPreviewThread.join(); 890 if (mOpenCameraFail) { 891 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 892 return; 893 } else if (mCameraDisabled) { 894 Util.showErrorAndFinish(this, R.string.camera_disabled); 895 return; 896 } 897 } catch (InterruptedException ex) { 898 // ignore 899 } 900 901 mBackCameraId = CameraHolder.instance().getBackCameraId(); 902 mFrontCameraId = CameraHolder.instance().getFrontCameraId(); 903 904 // Do this after starting preview because it depends on camera 905 // parameters. 906 initializeIndicatorControl(); 907 } 908 909 private void overrideCameraSettings(final String flashMode, 910 final String whiteBalance, final String focusMode) { 911 if (mIndicatorControlContainer != null) { 912 mIndicatorControlContainer.overrideSettings( 913 CameraSettings.KEY_FLASH_MODE, flashMode, 914 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 915 CameraSettings.KEY_FOCUS_MODE, focusMode); 916 } 917 } 918 919 private void updateSceneModeUI() { 920 // If scene mode is set, we cannot set flash mode, white balance, and 921 // focus mode, instead, we read it from driver 922 if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 923 overrideCameraSettings(mParameters.getFlashMode(), 924 mParameters.getWhiteBalance(), mParameters.getFocusMode()); 925 } else { 926 overrideCameraSettings(null, null, null); 927 } 928 } 929 930 private void loadCameraPreferences() { 931 CameraSettings settings = new CameraSettings(this, mInitialParams, 932 mCameraId, CameraHolder.instance().getCameraInfo()); 933 mPreferenceGroup = settings.getPreferenceGroup(R.xml.camera_preferences); 934 } 935 936 private void initializeIndicatorControl() { 937 // setting the indicator buttons. 938 mIndicatorControlContainer = 939 (IndicatorControlContainer) findViewById(R.id.indicator_control); 940 if (mIndicatorControlContainer == null) return; 941 loadCameraPreferences(); 942 final String[] SETTING_KEYS = { 943 CameraSettings.KEY_FLASH_MODE, 944 CameraSettings.KEY_WHITE_BALANCE, 945 CameraSettings.KEY_SCENE_MODE}; 946 final String[] OTHER_SETTING_KEYS = { 947 CameraSettings.KEY_RECORD_LOCATION, 948 CameraSettings.KEY_FOCUS_MODE, 949 CameraSettings.KEY_EXPOSURE, 950 CameraSettings.KEY_PICTURE_SIZE}; 951 952 CameraPicker.setImageResourceId(R.drawable.ic_switch_photo_facing_holo_light); 953 mIndicatorControlContainer.initialize(this, mPreferenceGroup, 954 mParameters.isZoomSupported(), 955 SETTING_KEYS, OTHER_SETTING_KEYS); 956 updateSceneModeUI(); 957 mIndicatorControlContainer.setListener(this); 958 } 959 960 private boolean collapseCameraControls() { 961 if ((mIndicatorControlContainer != null) 962 && mIndicatorControlContainer.dismissSettingPopup()) { 963 return true; 964 } 965 return false; 966 } 967 968 private void enableCameraControls(boolean enable) { 969 if (mIndicatorControlContainer != null) { 970 mIndicatorControlContainer.setEnabled(enable); 971 } 972 if (mModePicker != null) mModePicker.setEnabled(enable); 973 if (mZoomControl != null) mZoomControl.setEnabled(enable); 974 } 975 976 public static int roundOrientation(int orientation) { 977 return ((orientation + 45) / 90 * 90) % 360; 978 } 979 980 private class MyOrientationEventListener 981 extends OrientationEventListener { 982 public MyOrientationEventListener(Context context) { 983 super(context); 984 } 985 986 @Override 987 public void onOrientationChanged(int orientation) { 988 // We keep the last known orientation. So if the user first orient 989 // the camera then point the camera to floor or sky, we still have 990 // the correct orientation. 991 if (orientation == ORIENTATION_UNKNOWN) return; 992 mOrientation = roundOrientation(orientation); 993 // When the screen is unlocked, display rotation may change. Always 994 // calculate the up-to-date orientationCompensation. 995 int orientationCompensation = mOrientation 996 + Util.getDisplayRotation(Camera.this); 997 if (mOrientationCompensation != orientationCompensation) { 998 mOrientationCompensation = orientationCompensation; 999 setOrientationIndicator(mOrientationCompensation); 1000 } 1001 1002 // Show the toast after getting the first orientation changed. 1003 if (mHandler.hasMessages(SHOW_TAP_TO_FOCUS_TOAST)) { 1004 mHandler.removeMessages(SHOW_TAP_TO_FOCUS_TOAST); 1005 showTapToFocusToast(); 1006 } 1007 } 1008 } 1009 1010 private void setOrientationIndicator(int degree) { 1011 if (mThumbnailView != null) mThumbnailView.setDegree(degree); 1012 if (mModePicker != null) mModePicker.setDegree(degree); 1013 if (mSharePopup != null) mSharePopup.setOrientation(degree); 1014 if (mIndicatorControlContainer != null) mIndicatorControlContainer.setDegree(degree); 1015 if (mZoomControl != null) mZoomControl.setDegree(degree); 1016 if (mFocusIndicator != null) mFocusIndicator.setOrientation(degree); 1017 if (mFaceView != null) mFaceView.setOrientation(degree); 1018 } 1019 1020 @Override 1021 public void onStop() { 1022 super.onStop(); 1023 if (mMediaProviderClient != null) { 1024 mMediaProviderClient.release(); 1025 mMediaProviderClient = null; 1026 } 1027 } 1028 1029 private void checkStorage() { 1030 mPicturesRemaining = Storage.getAvailableSpace(); 1031 if (mPicturesRemaining > 0) { 1032 mPicturesRemaining /= 1500000; 1033 } 1034 updateStorageHint(); 1035 } 1036 1037 @OnClickAttr 1038 public void onThumbnailClicked(View v) { 1039 if (isCameraIdle() && mThumbnail != null) { 1040 showSharePopup(); 1041 } 1042 } 1043 1044 @OnClickAttr 1045 public void onRetakeButtonClicked(View v) { 1046 hidePostCaptureAlert(); 1047 startPreview(); 1048 } 1049 1050 @OnClickAttr 1051 public void onDoneButtonClicked(View v) { 1052 doAttach(); 1053 } 1054 1055 @OnClickAttr 1056 public void onCancelButtonClicked(View v) { 1057 doCancel(); 1058 } 1059 1060 private void doAttach() { 1061 if (mPausing) { 1062 return; 1063 } 1064 1065 byte[] data = mJpegImageData; 1066 1067 if (mCropValue == null) { 1068 // First handle the no crop case -- just return the value. If the 1069 // caller specifies a "save uri" then write the data to it's 1070 // stream. Otherwise, pass back a scaled down version of the bitmap 1071 // directly in the extras. 1072 if (mSaveUri != null) { 1073 OutputStream outputStream = null; 1074 try { 1075 outputStream = mContentResolver.openOutputStream(mSaveUri); 1076 outputStream.write(data); 1077 outputStream.close(); 1078 1079 setResultEx(RESULT_OK); 1080 finish(); 1081 } catch (IOException ex) { 1082 // ignore exception 1083 } finally { 1084 Util.closeSilently(outputStream); 1085 } 1086 } else { 1087 int orientation = Exif.getOrientation(data); 1088 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1089 bitmap = Util.rotate(bitmap, orientation); 1090 setResultEx(RESULT_OK, 1091 new Intent("inline-data").putExtra("data", bitmap)); 1092 finish(); 1093 } 1094 } else { 1095 // Save the image to a temp file and invoke the cropper 1096 Uri tempUri = null; 1097 FileOutputStream tempStream = null; 1098 try { 1099 File path = getFileStreamPath(sTempCropFilename); 1100 path.delete(); 1101 tempStream = openFileOutput(sTempCropFilename, 0); 1102 tempStream.write(data); 1103 tempStream.close(); 1104 tempUri = Uri.fromFile(path); 1105 } catch (FileNotFoundException ex) { 1106 setResultEx(Activity.RESULT_CANCELED); 1107 finish(); 1108 return; 1109 } catch (IOException ex) { 1110 setResultEx(Activity.RESULT_CANCELED); 1111 finish(); 1112 return; 1113 } finally { 1114 Util.closeSilently(tempStream); 1115 } 1116 1117 Bundle newExtras = new Bundle(); 1118 if (mCropValue.equals("circle")) { 1119 newExtras.putString("circleCrop", "true"); 1120 } 1121 if (mSaveUri != null) { 1122 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1123 } else { 1124 newExtras.putBoolean("return-data", true); 1125 } 1126 1127 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1128 1129 cropIntent.setData(tempUri); 1130 cropIntent.putExtras(newExtras); 1131 1132 startActivityForResult(cropIntent, CROP_MSG); 1133 } 1134 } 1135 1136 private void doCancel() { 1137 setResultEx(RESULT_CANCELED, new Intent()); 1138 finish(); 1139 } 1140 1141 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1142 switch (button.getId()) { 1143 case R.id.shutter_button: 1144 doFocus(pressed); 1145 break; 1146 } 1147 } 1148 1149 public void onShutterButtonClick(ShutterButton button) { 1150 switch (button.getId()) { 1151 case R.id.shutter_button: 1152 doSnap(); 1153 break; 1154 } 1155 } 1156 1157 private OnScreenHint mStorageHint; 1158 1159 private void updateStorageHint() { 1160 String noStorageText = null; 1161 1162 if (mPicturesRemaining == Storage.UNAVAILABLE) { 1163 noStorageText = getString(R.string.no_storage); 1164 } else if (mPicturesRemaining == Storage.PREPARING) { 1165 noStorageText = getString(R.string.preparing_sd); 1166 } else if (mPicturesRemaining == Storage.UNKNOWN_SIZE) { 1167 noStorageText = getString(R.string.access_sd_fail); 1168 } else if (mPicturesRemaining < 1L) { 1169 noStorageText = getString(R.string.not_enough_space); 1170 } 1171 1172 if (noStorageText != null) { 1173 if (mStorageHint == null) { 1174 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1175 } else { 1176 mStorageHint.setText(noStorageText); 1177 } 1178 mStorageHint.show(); 1179 } else if (mStorageHint != null) { 1180 mStorageHint.cancel(); 1181 mStorageHint = null; 1182 } 1183 } 1184 1185 private void installIntentFilter() { 1186 // install an intent filter to receive SD card related events. 1187 IntentFilter intentFilter = 1188 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1189 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1190 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1191 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1192 intentFilter.addDataScheme("file"); 1193 registerReceiver(mReceiver, intentFilter); 1194 mDidRegister = true; 1195 } 1196 1197 @Override 1198 protected void onResume() { 1199 super.onResume(); 1200 mPausing = false; 1201 if (mOpenCameraFail || mCameraDisabled) return; 1202 1203 mJpegPictureCallbackTime = 0; 1204 mZoomValue = 0; 1205 1206 // Start the preview if it is not started. 1207 if (mCameraState == PREVIEW_STOPPED) { 1208 try { 1209 mCameraDevice = Util.openCamera(this, mCameraId); 1210 initializeCapabilities(); 1211 resetExposureCompensation(); 1212 startPreview(); 1213 } catch (CameraHardwareException e) { 1214 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1215 return; 1216 } catch (CameraDisabledException e) { 1217 Util.showErrorAndFinish(this, R.string.camera_disabled); 1218 return; 1219 } 1220 } 1221 1222 if (mSurfaceHolder != null) { 1223 // If first time initialization is not finished, put it in the 1224 // message queue. 1225 if (!mFirstTimeInitialized) { 1226 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1227 } else { 1228 initializeSecondTime(); 1229 } 1230 } 1231 keepScreenOnAwhile(); 1232 1233 if (mCameraState == IDLE) { 1234 mOnResumeTime = SystemClock.uptimeMillis(); 1235 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 1236 } 1237 } 1238 1239 @Override 1240 protected void onPause() { 1241 mPausing = true; 1242 stopPreview(); 1243 // Close the camera now because other activities may need to use it. 1244 closeCamera(); 1245 resetScreenOn(); 1246 1247 // Clear UI. 1248 collapseCameraControls(); 1249 if (mSharePopup != null) mSharePopup.dismiss(); 1250 if (mFaceView != null) mFaceView.clear(); 1251 1252 if (mFirstTimeInitialized) { 1253 mOrientationListener.disable(); 1254 if (!mIsImageCaptureIntent && mThumbnail != null && !mThumbnail.fromFile()) { 1255 mThumbnail.saveTo(new File(getFilesDir(), Thumbnail.LAST_THUMB_FILENAME)); 1256 } 1257 } 1258 1259 if (mDidRegister) { 1260 unregisterReceiver(mReceiver); 1261 mDidRegister = false; 1262 } 1263 mLocationManager.recordLocation(false); 1264 updateExposureOnScreenIndicator(0); 1265 1266 mFocusManager.releaseToneGenerator(); 1267 1268 if (mStorageHint != null) { 1269 mStorageHint.cancel(); 1270 mStorageHint = null; 1271 } 1272 1273 // If we are in an image capture intent and has taken 1274 // a picture, we just clear it in onPause. 1275 mJpegImageData = null; 1276 1277 // Remove the messages in the event queue. 1278 mHandler.removeMessages(FIRST_TIME_INIT); 1279 mHandler.removeMessages(CHECK_DISPLAY_ROTATION); 1280 mFocusManager.removeMessages(); 1281 1282 super.onPause(); 1283 } 1284 1285 @Override 1286 protected void onActivityResult( 1287 int requestCode, int resultCode, Intent data) { 1288 switch (requestCode) { 1289 case CROP_MSG: { 1290 Intent intent = new Intent(); 1291 if (data != null) { 1292 Bundle extras = data.getExtras(); 1293 if (extras != null) { 1294 intent.putExtras(extras); 1295 } 1296 } 1297 setResultEx(resultCode, intent); 1298 finish(); 1299 1300 File path = getFileStreamPath(sTempCropFilename); 1301 path.delete(); 1302 1303 break; 1304 } 1305 } 1306 } 1307 1308 private boolean canTakePicture() { 1309 return isCameraIdle() && (mPicturesRemaining > 0); 1310 } 1311 1312 @Override 1313 public void autoFocus() { 1314 mFocusStartTime = System.currentTimeMillis(); 1315 mCameraDevice.autoFocus(mAutoFocusCallback); 1316 mCameraState = FOCUSING; 1317 enableCameraControls(false); 1318 } 1319 1320 @Override 1321 public void cancelAutoFocus() { 1322 mCameraDevice.cancelAutoFocus(); 1323 mCameraState = IDLE; 1324 enableCameraControls(true); 1325 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1326 } 1327 1328 // Preview area is touched. Handle touch focus. 1329 @Override 1330 public boolean onTouch(View v, MotionEvent e) { 1331 if (mPausing || mCameraDevice == null || !mFirstTimeInitialized 1332 || mCameraState == SNAPSHOT_IN_PROGRESS) { 1333 return false; 1334 } 1335 1336 // Do not trigger touch focus if popup window is opened. 1337 if (collapseCameraControls()) return false; 1338 1339 // Check if metering area or focus area is supported. 1340 if (!mFocusAreaSupported && !mMeteringAreaSupported) return false; 1341 1342 return mFocusManager.onTouch(e); 1343 } 1344 1345 @Override 1346 public void onBackPressed() { 1347 if (!isCameraIdle()) { 1348 // ignore backs while we're taking a picture 1349 return; 1350 } else if (!collapseCameraControls()) { 1351 super.onBackPressed(); 1352 } 1353 } 1354 1355 @Override 1356 public boolean onKeyDown(int keyCode, KeyEvent event) { 1357 switch (keyCode) { 1358 case KeyEvent.KEYCODE_FOCUS: 1359 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1360 doFocus(true); 1361 } 1362 return true; 1363 case KeyEvent.KEYCODE_CAMERA: 1364 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1365 doSnap(); 1366 } 1367 return true; 1368 case KeyEvent.KEYCODE_DPAD_CENTER: 1369 // If we get a dpad center event without any focused view, move 1370 // the focus to the shutter button and press it. 1371 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1372 // Start auto-focus immediately to reduce shutter lag. After 1373 // the shutter button gets the focus, doFocus() will be 1374 // called again but it is fine. 1375 if (collapseCameraControls()) return true; 1376 doFocus(true); 1377 if (mShutterButton.isInTouchMode()) { 1378 mShutterButton.requestFocusFromTouch(); 1379 } else { 1380 mShutterButton.requestFocus(); 1381 } 1382 mShutterButton.setPressed(true); 1383 } 1384 return true; 1385 } 1386 1387 return super.onKeyDown(keyCode, event); 1388 } 1389 1390 @Override 1391 public boolean onKeyUp(int keyCode, KeyEvent event) { 1392 switch (keyCode) { 1393 case KeyEvent.KEYCODE_FOCUS: 1394 if (mFirstTimeInitialized) { 1395 doFocus(false); 1396 } 1397 return true; 1398 } 1399 return super.onKeyUp(keyCode, event); 1400 } 1401 1402 private void doSnap() { 1403 if (mPausing || collapseCameraControls()) return; 1404 1405 // Do not take the picture if there is not enough storage. 1406 if (mPicturesRemaining <= 0) { 1407 Log.i(TAG, "Not enough space or storage not ready. remaining=" + mPicturesRemaining); 1408 return; 1409 } 1410 1411 Log.v(TAG, "doSnap: mCameraState=" + mCameraState); 1412 mFocusManager.doSnap(); 1413 } 1414 1415 private void doFocus(boolean pressed) { 1416 if (mPausing || collapseCameraControls() || mCameraState == SNAPSHOT_IN_PROGRESS) return; 1417 1418 // Do not do focus if there is not enough storage. 1419 if (pressed && !canTakePicture()) return; 1420 1421 // Lock AE and AWB so users can half-press shutter and recompose. 1422 mAeAwbLock = pressed; 1423 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1424 mFocusManager.doFocus(pressed); 1425 } 1426 1427 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1428 // Make sure we have a surface in the holder before proceeding. 1429 if (holder.getSurface() == null) { 1430 Log.d(TAG, "holder.getSurface() == null"); 1431 return; 1432 } 1433 1434 Log.v(TAG, "surfaceChanged. w=" + w + ". h=" + h); 1435 1436 // We need to save the holder for later use, even when the mCameraDevice 1437 // is null. This could happen if onResume() is invoked after this 1438 // function. 1439 mSurfaceHolder = holder; 1440 1441 // The mCameraDevice will be null if it fails to connect to the camera 1442 // hardware. In this case we will show a dialog and then finish the 1443 // activity, so it's OK to ignore it. 1444 if (mCameraDevice == null) return; 1445 1446 // Sometimes surfaceChanged is called after onPause or before onResume. 1447 // Ignore it. 1448 if (mPausing || isFinishing()) return; 1449 1450 // Set preview display if the surface is being created. Preview was 1451 // already started. Also restart the preview if display rotation has 1452 // changed. Sometimes this happens when the device is held in portrait 1453 // and camera app is opened. Rotation animation takes some time and 1454 // display rotation in onCreate may not be what we want. 1455 if (mCameraState != PREVIEW_STOPPED 1456 && (Util.getDisplayRotation(this) == mDisplayRotation) 1457 && holder.isCreating()) { 1458 // Set preview display if the surface is being created and preview 1459 // was already started. That means preview display was set to null 1460 // and we need to set it now. 1461 setPreviewDisplay(holder); 1462 } else { 1463 // 1. Restart the preview if the size of surface was changed. The 1464 // framework may not support changing preview display on the fly. 1465 // 2. Start the preview now if surface was destroyed and preview 1466 // stopped. 1467 startPreview(); 1468 } 1469 1470 // If first time initialization is not finished, send a message to do 1471 // it later. We want to finish surfaceChanged as soon as possible to let 1472 // user see preview first. 1473 if (!mFirstTimeInitialized) { 1474 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1475 } else { 1476 initializeSecondTime(); 1477 } 1478 } 1479 1480 public void surfaceCreated(SurfaceHolder holder) { 1481 } 1482 1483 public void surfaceDestroyed(SurfaceHolder holder) { 1484 stopPreview(); 1485 mSurfaceHolder = null; 1486 } 1487 1488 private void closeCamera() { 1489 if (mCameraDevice != null) { 1490 mCameraDevice.cancelAutoFocus(); // Reset the focus. 1491 CameraHolder.instance().release(); 1492 mCameraDevice.setZoomChangeListener(null); 1493 mCameraDevice.setFaceDetectionListener(null); 1494 mCameraDevice.setErrorCallback(null); 1495 mCameraDevice = null; 1496 mCameraState = PREVIEW_STOPPED; 1497 mFocusManager.onCameraReleased(); 1498 } 1499 } 1500 1501 private void setPreviewDisplay(SurfaceHolder holder) { 1502 try { 1503 mCameraDevice.setPreviewDisplay(holder); 1504 } catch (Throwable ex) { 1505 closeCamera(); 1506 throw new RuntimeException("setPreviewDisplay failed", ex); 1507 } 1508 } 1509 1510 private void startPreview() { 1511 if (mPausing || isFinishing()) return; 1512 1513 mFocusManager.resetTouchFocus(); 1514 1515 mCameraDevice.setErrorCallback(mErrorCallback); 1516 1517 // If we're previewing already, stop the preview first (this will blank 1518 // the screen). 1519 if (mCameraState != PREVIEW_STOPPED) stopPreview(); 1520 1521 setPreviewDisplay(mSurfaceHolder); 1522 mDisplayRotation = Util.getDisplayRotation(this); 1523 mDisplayOrientation = Util.getDisplayOrientation(mDisplayRotation, mCameraId); 1524 mCameraDevice.setDisplayOrientation(mDisplayOrientation); 1525 if (mFaceView != null) { 1526 mFaceView.setDisplayOrientation(mDisplayOrientation); 1527 } 1528 mAeAwbLock = false; // Always unlock AE and AWB before start. 1529 setCameraParameters(UPDATE_PARAM_ALL); 1530 // If the focus mode is continuous autofocus, call cancelAutoFocus to 1531 // resume it because it may have been paused by autoFocus call. 1532 if (Parameters.FOCUS_MODE_CONTINUOUS_PICTURE.equals(mParameters.getFocusMode())) { 1533 mCameraDevice.cancelAutoFocus(); 1534 } 1535 1536 try { 1537 Log.v(TAG, "startPreview"); 1538 mCameraDevice.startPreview(); 1539 } catch (Throwable ex) { 1540 closeCamera(); 1541 throw new RuntimeException("startPreview failed", ex); 1542 } 1543 1544 startFaceDetection(); 1545 mZoomState = ZOOM_STOPPED; 1546 mCameraState = IDLE; 1547 mFocusManager.onPreviewStarted(); 1548 } 1549 1550 private void stopPreview() { 1551 if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) { 1552 Log.v(TAG, "stopPreview"); 1553 mCameraDevice.stopPreview(); 1554 } 1555 mCameraState = PREVIEW_STOPPED; 1556 mFocusManager.onPreviewStopped(); 1557 } 1558 1559 private static boolean isSupported(String value, List<String> supported) { 1560 return supported == null ? false : supported.indexOf(value) >= 0; 1561 } 1562 1563 private void updateCameraParametersInitialize() { 1564 // Reset preview frame rate to the maximum because it may be lowered by 1565 // video camera application. 1566 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1567 if (frameRates != null) { 1568 Integer max = Collections.max(frameRates); 1569 mParameters.setPreviewFrameRate(max); 1570 } 1571 1572 mParameters.setRecordingHint(false); 1573 } 1574 1575 private void updateCameraParametersZoom() { 1576 // Set zoom. 1577 if (mParameters.isZoomSupported()) { 1578 mParameters.setZoom(mZoomValue); 1579 } 1580 } 1581 1582 private void updateCameraParametersPreference() { 1583 if (mAwbLockSupported) { 1584 mParameters.setAutoWhiteBalanceLock(mAeAwbLock); 1585 } 1586 1587 if (mAeLockSupported) { 1588 mParameters.setAutoExposureLock(mAeAwbLock); 1589 } 1590 1591 if (mFocusAreaSupported) { 1592 mParameters.setFocusAreas(mFocusManager.getTapArea()); 1593 } 1594 1595 if (mMeteringAreaSupported) { 1596 // Use the same area for focus and metering. 1597 mParameters.setMeteringAreas(mFocusManager.getTapArea()); 1598 } 1599 1600 // Set picture size. 1601 String pictureSize = mPreferences.getString( 1602 CameraSettings.KEY_PICTURE_SIZE, null); 1603 if (pictureSize == null) { 1604 CameraSettings.initialCameraPictureSize(this, mParameters); 1605 } else { 1606 List<Size> supported = mParameters.getSupportedPictureSizes(); 1607 CameraSettings.setCameraPictureSize( 1608 pictureSize, supported, mParameters); 1609 } 1610 1611 // Set the preview frame aspect ratio according to the picture size. 1612 Size size = mParameters.getPictureSize(); 1613 1614 mPreviewPanel = findViewById(R.id.frame_layout); 1615 mPreviewFrameLayout = (PreviewFrameLayout) findViewById(R.id.frame); 1616 mPreviewFrameLayout.setAspectRatio((double) size.width / size.height); 1617 1618 // Set a preview size that is closest to the viewfinder height and has 1619 // the right aspect ratio. 1620 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1621 Size optimalSize = Util.getOptimalPreviewSize(this, 1622 sizes, (double) size.width / size.height); 1623 Size original = mParameters.getPreviewSize(); 1624 if (!original.equals(optimalSize)) { 1625 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1626 1627 // Zoom related settings will be changed for different preview 1628 // sizes, so set and read the parameters to get lastest values 1629 mCameraDevice.setParameters(mParameters); 1630 mParameters = mCameraDevice.getParameters(); 1631 } 1632 Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height); 1633 1634 // Since change scene mode may change supported values, 1635 // Set scene mode first, 1636 mSceneMode = mPreferences.getString( 1637 CameraSettings.KEY_SCENE_MODE, 1638 getString(R.string.pref_camera_scenemode_default)); 1639 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 1640 if (!mParameters.getSceneMode().equals(mSceneMode)) { 1641 mParameters.setSceneMode(mSceneMode); 1642 mCameraDevice.setParameters(mParameters); 1643 1644 // Setting scene mode will change the settings of flash mode, 1645 // white balance, and focus mode. Here we read back the 1646 // parameters, so we can know those settings. 1647 mParameters = mCameraDevice.getParameters(); 1648 } 1649 } else { 1650 mSceneMode = mParameters.getSceneMode(); 1651 if (mSceneMode == null) { 1652 mSceneMode = Parameters.SCENE_MODE_AUTO; 1653 } 1654 } 1655 1656 // Set JPEG quality. 1657 int jpegQuality = CameraProfile.getJpegEncodingQualityParameter(mCameraId, 1658 CameraProfile.QUALITY_HIGH); 1659 mParameters.setJpegQuality(jpegQuality); 1660 1661 // For the following settings, we need to check if the settings are 1662 // still supported by latest driver, if not, ignore the settings. 1663 1664 // Set exposure compensation 1665 int value = CameraSettings.readExposure(mPreferences); 1666 int max = mParameters.getMaxExposureCompensation(); 1667 int min = mParameters.getMinExposureCompensation(); 1668 if (value >= min && value <= max) { 1669 mParameters.setExposureCompensation(value); 1670 } else { 1671 Log.w(TAG, "invalid exposure range: " + value); 1672 } 1673 1674 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1675 // Set flash mode. 1676 String flashMode = mPreferences.getString( 1677 CameraSettings.KEY_FLASH_MODE, 1678 getString(R.string.pref_camera_flashmode_default)); 1679 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 1680 if (isSupported(flashMode, supportedFlash)) { 1681 mParameters.setFlashMode(flashMode); 1682 } else { 1683 flashMode = mParameters.getFlashMode(); 1684 if (flashMode == null) { 1685 flashMode = getString( 1686 R.string.pref_camera_flashmode_no_flash); 1687 } 1688 } 1689 1690 // Set white balance parameter. 1691 String whiteBalance = mPreferences.getString( 1692 CameraSettings.KEY_WHITE_BALANCE, 1693 getString(R.string.pref_camera_whitebalance_default)); 1694 if (isSupported(whiteBalance, 1695 mParameters.getSupportedWhiteBalance())) { 1696 mParameters.setWhiteBalance(whiteBalance); 1697 } else { 1698 whiteBalance = mParameters.getWhiteBalance(); 1699 if (whiteBalance == null) { 1700 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 1701 } 1702 } 1703 1704 // Set focus mode. 1705 mFocusManager.overrideFocusMode(null); 1706 mParameters.setFocusMode(mFocusManager.getFocusMode()); 1707 } else { 1708 mFocusManager.overrideFocusMode(mParameters.getFocusMode()); 1709 } 1710 } 1711 1712 // We separate the parameters into several subsets, so we can update only 1713 // the subsets actually need updating. The PREFERENCE set needs extra 1714 // locking because the preference can be changed from GLThread as well. 1715 private void setCameraParameters(int updateSet) { 1716 mParameters = mCameraDevice.getParameters(); 1717 1718 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 1719 updateCameraParametersInitialize(); 1720 } 1721 1722 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 1723 updateCameraParametersZoom(); 1724 } 1725 1726 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 1727 updateCameraParametersPreference(); 1728 } 1729 1730 mCameraDevice.setParameters(mParameters); 1731 } 1732 1733 // If the Camera is idle, update the parameters immediately, otherwise 1734 // accumulate them in mUpdateSet and update later. 1735 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 1736 mUpdateSet |= additionalUpdateSet; 1737 if (mCameraDevice == null) { 1738 // We will update all the parameters when we open the device, so 1739 // we don't need to do anything now. 1740 mUpdateSet = 0; 1741 return; 1742 } else if (isCameraIdle()) { 1743 setCameraParameters(mUpdateSet); 1744 updateSceneModeUI(); 1745 mUpdateSet = 0; 1746 } else { 1747 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 1748 mHandler.sendEmptyMessageDelayed( 1749 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 1750 } 1751 } 1752 } 1753 1754 private void gotoGallery() { 1755 MenuHelper.gotoCameraImageGallery(this); 1756 } 1757 1758 private boolean isCameraIdle() { 1759 return (mCameraState == IDLE) || (mFocusManager.isFocusCompleted()); 1760 } 1761 1762 private boolean isImageCaptureIntent() { 1763 String action = getIntent().getAction(); 1764 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 1765 } 1766 1767 private void setupCaptureParams() { 1768 Bundle myExtras = getIntent().getExtras(); 1769 if (myExtras != null) { 1770 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 1771 mCropValue = myExtras.getString("crop"); 1772 } 1773 } 1774 1775 private void showPostCaptureAlert() { 1776 if (mIsImageCaptureIntent) { 1777 Util.fadeOut(mIndicatorControlContainer); 1778 Util.fadeOut(mShutterButton); 1779 1780 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1781 for (int id : pickIds) { 1782 Util.fadeIn(findViewById(id)); 1783 } 1784 } 1785 } 1786 1787 private void hidePostCaptureAlert() { 1788 if (mIsImageCaptureIntent) { 1789 enableCameraControls(true); 1790 1791 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1792 for (int id : pickIds) { 1793 Util.fadeOut(findViewById(id)); 1794 } 1795 1796 Util.fadeIn(mShutterButton); 1797 Util.fadeIn(mIndicatorControlContainer); 1798 } 1799 } 1800 1801 @Override 1802 public boolean onPrepareOptionsMenu(Menu menu) { 1803 super.onPrepareOptionsMenu(menu); 1804 // Only show the menu when camera is idle. 1805 for (int i = 0; i < menu.size(); i++) { 1806 menu.getItem(i).setVisible(isCameraIdle()); 1807 } 1808 1809 return true; 1810 } 1811 1812 @Override 1813 public boolean onCreateOptionsMenu(Menu menu) { 1814 super.onCreateOptionsMenu(menu); 1815 1816 if (mIsImageCaptureIntent) { 1817 // No options menu for attach mode. 1818 return false; 1819 } else { 1820 addBaseMenuItems(menu); 1821 } 1822 return true; 1823 } 1824 1825 private void addBaseMenuItems(Menu menu) { 1826 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_VIDEO, new Runnable() { 1827 public void run() { 1828 switchToOtherMode(ModePicker.MODE_VIDEO); 1829 } 1830 }); 1831 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_PANORAMA, new Runnable() { 1832 public void run() { 1833 switchToOtherMode(ModePicker.MODE_PANORAMA); 1834 } 1835 }); 1836 1837 if (mNumberOfCameras > 1) { 1838 menu.add(R.string.switch_camera_id) 1839 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1840 public boolean onMenuItemClick(MenuItem item) { 1841 CameraSettings.writePreferredCameraId(mPreferences, 1842 ((mCameraId == mFrontCameraId) 1843 ? mBackCameraId : mFrontCameraId)); 1844 onSharedPreferenceChanged(); 1845 return true; 1846 } 1847 }).setIcon(android.R.drawable.ic_menu_camera); 1848 } 1849 } 1850 1851 private boolean switchToOtherMode(int mode) { 1852 if (isFinishing() || !isCameraIdle()) return false; 1853 MenuHelper.gotoMode(mode, Camera.this); 1854 mHandler.removeMessages(FIRST_TIME_INIT); 1855 finish(); 1856 return true; 1857 } 1858 1859 public boolean onModeChanged(int mode) { 1860 if (mode != ModePicker.MODE_CAMERA) { 1861 return switchToOtherMode(mode); 1862 } else { 1863 return true; 1864 } 1865 } 1866 1867 public void onSharedPreferenceChanged() { 1868 // ignore the events after "onPause()" 1869 if (mPausing) return; 1870 1871 boolean recordLocation = RecordLocationPreference.get( 1872 mPreferences, getContentResolver()); 1873 mLocationManager.recordLocation(recordLocation); 1874 1875 int cameraId = CameraSettings.readPreferredCameraId(mPreferences); 1876 if (mCameraId != cameraId) { 1877 // Restart the activity to have a crossfade animation. 1878 // TODO: Use SurfaceTexture to implement a better and faster 1879 // animation. 1880 if (mIsImageCaptureIntent) { 1881 // If the intent is camera capture, stay in camera capture mode. 1882 MenuHelper.gotoCameraMode(this, getIntent()); 1883 } else { 1884 MenuHelper.gotoCameraMode(this); 1885 } 1886 1887 finish(); 1888 } else { 1889 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 1890 } 1891 1892 int exposureValue = CameraSettings.readExposure(mPreferences); 1893 updateExposureOnScreenIndicator(exposureValue); 1894 } 1895 1896 @Override 1897 public void onUserInteraction() { 1898 super.onUserInteraction(); 1899 keepScreenOnAwhile(); 1900 } 1901 1902 private void resetScreenOn() { 1903 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 1904 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1905 } 1906 1907 private void keepScreenOnAwhile() { 1908 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 1909 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1910 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 1911 } 1912 1913 public void onRestorePreferencesClicked() { 1914 if (mPausing) return; 1915 Runnable runnable = new Runnable() { 1916 public void run() { 1917 restorePreferences(); 1918 } 1919 }; 1920 MenuHelper.confirmAction(this, 1921 getString(R.string.confirm_restore_title), 1922 getString(R.string.confirm_restore_message), 1923 runnable); 1924 } 1925 1926 private void restorePreferences() { 1927 // Reset the zoom. Zoom value is not stored in preference. 1928 if (mParameters.isZoomSupported()) { 1929 mZoomValue = 0; 1930 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 1931 mZoomControl.setZoomIndex(0); 1932 } 1933 if (mIndicatorControlContainer != null) { 1934 mIndicatorControlContainer.dismissSettingPopup(); 1935 CameraSettings.restorePreferences(Camera.this, mPreferences, 1936 mParameters); 1937 mIndicatorControlContainer.reloadPreferences(); 1938 onSharedPreferenceChanged(); 1939 } 1940 } 1941 1942 public void onOverriddenPreferencesClicked() { 1943 if (mPausing) return; 1944 if (mNotSelectableToast == null) { 1945 String str = getResources().getString(R.string.not_selectable_in_scene_mode); 1946 mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT); 1947 } 1948 mNotSelectableToast.show(); 1949 } 1950 1951 private void showSharePopup() { 1952 Uri uri = mThumbnail.getUri(); 1953 if (mSharePopup == null || !uri.equals(mSharePopup.getUri())) { 1954 // SharePopup window takes the mPreviewPanel as its size reference. 1955 mSharePopup = new SharePopup(this, uri, mThumbnail.getBitmap(), 1956 mOrientationCompensation, mPreviewPanel); 1957 } 1958 mSharePopup.showAtLocation(mThumbnailView, Gravity.NO_GRAVITY, 0, 0); 1959 } 1960 1961 @Override 1962 public void onFaceDetection(Face[] faces, android.hardware.Camera camera) { 1963 mFaceView.setFaces(faces); 1964 } 1965 1966 private void showTapToFocusToast() { 1967 // Show the toast. 1968 RotateLayout v = (RotateLayout) findViewById(R.id.tap_to_focus_prompt); 1969 v.setOrientation(mOrientationCompensation); 1970 v.startAnimation(AnimationUtils.loadAnimation(this, R.anim.on_screen_hint_enter)); 1971 v.setVisibility(View.VISIBLE); 1972 mHandler.sendEmptyMessageDelayed(DISMISS_TAP_TO_FOCUS_TOAST, 5000); 1973 // Clear the preference. 1974 Editor editor = mPreferences.edit(); 1975 editor.putBoolean(CameraSettings.KEY_TAP_TO_FOCUS_PROMPT_SHOWN, false); 1976 editor.apply(); 1977 } 1978 1979 private void initializeCapabilities() { 1980 mInitialParams = mCameraDevice.getParameters(); 1981 mFocusManager.initializeParameters(mInitialParams); 1982 mFocusAreaSupported = (mInitialParams.getMaxNumFocusAreas() > 0 1983 && isSupported(Parameters.FOCUS_MODE_AUTO, 1984 mInitialParams.getSupportedFocusModes())); 1985 mMeteringAreaSupported = (mInitialParams.getMaxNumMeteringAreas() > 0); 1986 mAwbLockSupported = mInitialParams.isAutoWhiteBalanceLockSupported(); 1987 mAeLockSupported = mInitialParams.isAutoExposureLockSupported(); 1988 } 1989} 1990