Camera.java revision a72d73cbac59db43d413291e4db66763be08143a
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.CameraHeadUpDisplay; 20import com.android.camera.ui.CameraPicker; 21import com.android.camera.ui.FocusRectangle; 22import com.android.camera.ui.GLRootView; 23import com.android.camera.ui.HeadUpDisplay; 24import com.android.camera.ui.IndicatorWheel; 25import com.android.camera.ui.RotateImageView; 26import com.android.camera.ui.SharePopup; 27import com.android.camera.ui.ZoomControllerListener; 28import com.android.camera.ui.ZoomPicker; 29 30import android.app.Activity; 31import android.content.BroadcastReceiver; 32import android.content.ContentProviderClient; 33import android.content.ContentResolver; 34import android.content.Context; 35import android.content.Intent; 36import android.content.IntentFilter; 37import android.content.SharedPreferences.Editor; 38import android.content.res.Configuration; 39import android.graphics.Bitmap; 40import android.graphics.Rect; 41import android.hardware.Camera.Area; 42import android.hardware.Camera.CameraInfo; 43import android.hardware.Camera.Parameters; 44import android.hardware.Camera.PictureCallback; 45import android.hardware.Camera.Size; 46import android.location.Location; 47import android.location.LocationManager; 48import android.location.LocationProvider; 49import android.media.AudioManager; 50import android.media.CameraProfile; 51import android.media.ToneGenerator; 52import android.net.Uri; 53import android.os.Bundle; 54import android.os.Handler; 55import android.os.Looper; 56import android.os.Message; 57import android.os.MessageQueue; 58import android.os.SystemClock; 59import android.provider.MediaStore; 60import android.provider.Settings; 61import android.util.Log; 62import android.view.GestureDetector; 63import android.view.Gravity; 64import android.view.KeyEvent; 65import android.view.Menu; 66import android.view.MenuItem; 67import android.view.MenuItem.OnMenuItemClickListener; 68import android.view.MotionEvent; 69import android.view.OrientationEventListener; 70import android.view.SurfaceHolder; 71import android.view.SurfaceView; 72import android.view.View; 73import android.view.ViewGroup; 74import android.view.Window; 75import android.view.WindowManager; 76import android.widget.Button; 77import android.widget.RelativeLayout; 78import android.widget.TextView; 79import android.widget.Toast; 80 81import java.io.File; 82import java.io.FileNotFoundException; 83import java.io.FileOutputStream; 84import java.io.IOException; 85import java.io.OutputStream; 86import java.text.SimpleDateFormat; 87import java.util.ArrayList; 88import java.util.Collections; 89import java.util.Date; 90import java.util.List; 91 92/** The Camera activity which can preview and take pictures. */ 93public class Camera extends ActivityBase implements View.OnClickListener, 94 View.OnTouchListener, ShutterButton.OnShutterButtonListener, 95 SurfaceHolder.Callback, ModePicker.OnModeChangeListener { 96 97 private static final String TAG = "camera"; 98 99 private static final String LAST_THUMB_FILENAME = "image_last_thumb"; 100 101 private static final int CROP_MSG = 1; 102 private static final int FIRST_TIME_INIT = 2; 103 private static final int RESTART_PREVIEW = 3; 104 private static final int CLEAR_SCREEN_DELAY = 4; 105 private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 5; 106 private static final int CHECK_DISPLAY_ROTATION = 6; 107 private static final int RESET_TOUCH_FOCUS = 7; 108 109 // The subset of parameters we need to update in setCameraParameters(). 110 private static final int UPDATE_PARAM_INITIALIZE = 1; 111 private static final int UPDATE_PARAM_ZOOM = 2; 112 private static final int UPDATE_PARAM_PREFERENCE = 4; 113 private static final int UPDATE_PARAM_ALL = -1; 114 115 // When setCameraParametersWhenIdle() is called, we accumulate the subsets 116 // needed to be updated in mUpdateSet. 117 private int mUpdateSet; 118 119 // The brightness settings used when it is set to automatic in the system. 120 // The reason why it is set to 0.7 is just because 1.0 is too bright. 121 private static final float DEFAULT_CAMERA_BRIGHTNESS = 0.7f; 122 123 private static final int SCREEN_DELAY = 2 * 60 * 1000; 124 private static final int FOCUS_BEEP_VOLUME = 100; 125 126 private static final int ZOOM_STOPPED = 0; 127 private static final int ZOOM_START = 1; 128 private static final int ZOOM_STOPPING = 2; 129 130 private int mZoomState = ZOOM_STOPPED; 131 private boolean mSmoothZoomSupported = false; 132 private int mZoomValue; // The current zoom value. 133 private int mZoomMax; 134 private int mTargetZoomValue; 135 private ZoomPicker mZoomPicker; 136 137 private Parameters mParameters; 138 private Parameters mInitialParams; 139 140 private MyOrientationEventListener mOrientationListener; 141 // The degrees of the device rotated clockwise from its natural orientation. 142 private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 143 // The orientation compensation for icons and thumbnails. Ex: if the value 144 // is 90, the UI components should be rotated 90 degrees counter-clockwise. 145 private int mOrientationCompensation = 0; 146 private ComboPreferences mPreferences; 147 148 private static final String sTempCropFilename = "crop-temp"; 149 150 private android.hardware.Camera mCameraDevice; 151 private ContentProviderClient mMediaProviderClient; 152 private SurfaceHolder mSurfaceHolder = null; 153 private ShutterButton mShutterButton; 154 private ToneGenerator mFocusToneGenerator; 155 private GestureDetector mPopupGestureDetector; 156 private boolean mOpenCameraFail = false; 157 private boolean mCameraDisabled = false; 158 159 private View mPreviewFrame; // Preview frame area. 160 private View mPreviewBorder; 161 private FocusRectangle mFocusRectangle; 162 private List<Area> mFocusArea; // focus area in driver format 163 private static final int RESET_TOUCH_FOCUS_DELAY = 3000; 164 165 private GLRootView mGLRootView; 166 167 // A popup window that contains a bigger thumbnail and a list of apps to share. 168 private SharePopup mSharePopup; 169 // The bitmap of the last captured picture thumbnail and the URI of the 170 // original picture. 171 private Thumbnail mThumbnail; 172 // A button that contains the thumbnail and the share icon. 173 private View mShareButton; 174 // An imageview showing showing the last captured picture thumbnail. 175 private RotateImageView mThumbnailView; 176 private RotateImageView mShareIcon; 177 private ModePicker mModePicker; 178 179 // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. 180 private String mCropValue; 181 private Uri mSaveUri; 182 183 // GPS on-screen indicator 184 private View mGpsNoSignalView; 185 private View mGpsHasSignalView; 186 187 // Front/Back camera picker for w1024dp layout 188 private CameraPicker mCameraPicker; 189 190 /** 191 * An unpublished intent flag requesting to return as soon as capturing 192 * is completed. 193 * 194 * TODO: consider publishing by moving into MediaStore. 195 */ 196 private final static String EXTRA_QUICK_CAPTURE = 197 "android.intent.extra.quickCapture"; 198 199 // The display rotation in degrees. This is only valid when mCameraState is 200 // not PREVIEW_STOPPED. 201 private int mDisplayRotation; 202 private boolean mPausing; 203 private boolean mFirstTimeInitialized; 204 private boolean mIsImageCaptureIntent; 205 private boolean mRecordLocation; 206 207 private static final int PREVIEW_STOPPED = 0; 208 private static final int IDLE = 1; // preview is active 209 private static final int FOCUSING = 2; 210 private static final int FOCUSING_SNAP_ON_FINISH = 3; 211 private static final int FOCUS_SUCCESS = 4; 212 private static final int FOCUS_FAIL = 5; 213 private static final int SNAPSHOT_IN_PROGRESS = 6; 214 private int mCameraState = PREVIEW_STOPPED; 215 216 private ContentResolver mContentResolver; 217 private boolean mDidRegister = false; 218 219 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 220 221 private LocationManager mLocationManager = null; 222 223 private final ShutterCallback mShutterCallback = new ShutterCallback(); 224 private final PostViewPictureCallback mPostViewPictureCallback = 225 new PostViewPictureCallback(); 226 private final RawPictureCallback mRawPictureCallback = 227 new RawPictureCallback(); 228 private final AutoFocusCallback mAutoFocusCallback = 229 new AutoFocusCallback(); 230 private final ZoomListener mZoomListener = new ZoomListener(); 231 private final CameraErrorCallback mErrorCallback = new CameraErrorCallback(); 232 233 private long mFocusStartTime; 234 private long mFocusCallbackTime; 235 private long mCaptureStartTime; 236 private long mShutterCallbackTime; 237 private long mPostViewPictureCallbackTime; 238 private long mRawPictureCallbackTime; 239 private long mJpegPictureCallbackTime; 240 private long mOnResumeTime; 241 private long mPicturesRemaining; 242 private byte[] mJpegImageData; 243 244 // These latency time are for the CameraLatency test. 245 public long mAutoFocusTime; 246 public long mShutterLag; 247 public long mShutterToPictureDisplayedTime; 248 public long mPictureDisplayedToJpegCallbackTime; 249 public long mJpegCallbackFinishTime; 250 251 // Focus mode. Options are pref_camera_focusmode_entryvalues. 252 private String mFocusMode; 253 private String mSceneMode; 254 private Toast mNotSelectableToast; 255 private Toast mNoShareToast; 256 257 private final Handler mHandler = new MainHandler(); 258 // w1024dp devices use indicator wheel. Other devices use head-up display. 259 private CameraHeadUpDisplay mHeadUpDisplay; 260 private IndicatorWheel mIndicatorWheel; 261 private PreferenceGroup mPreferenceGroup; 262 263 // multiple cameras support 264 private int mNumberOfCameras; 265 private int mCameraId; 266 private int mFrontCameraId; 267 private int mBackCameraId; 268 269 private boolean mQuickCapture; 270 271 /** 272 * This Handler is used to post message back onto the main thread of the 273 * application 274 */ 275 private class MainHandler extends Handler { 276 @Override 277 public void handleMessage(Message msg) { 278 switch (msg.what) { 279 case RESTART_PREVIEW: { 280 startPreview(); 281 if (mJpegPictureCallbackTime != 0) { 282 long now = System.currentTimeMillis(); 283 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 284 Log.v(TAG, "mJpegCallbackFinishTime = " 285 + mJpegCallbackFinishTime + "ms"); 286 mJpegPictureCallbackTime = 0; 287 } 288 break; 289 } 290 291 case CLEAR_SCREEN_DELAY: { 292 getWindow().clearFlags( 293 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 294 break; 295 } 296 297 case FIRST_TIME_INIT: { 298 initializeFirstTime(); 299 break; 300 } 301 302 case SET_CAMERA_PARAMETERS_WHEN_IDLE: { 303 setCameraParametersWhenIdle(0); 304 break; 305 } 306 307 case CHECK_DISPLAY_ROTATION: { 308 // Restart the preview if display rotation has changed. 309 // Sometimes this happens when the device is held upside 310 // down and camera app is opened. Rotation animation will 311 // take some time and the rotation value we have got may be 312 // wrong. Framework does not have a callback for this now. 313 if (Util.getDisplayRotation(Camera.this) != mDisplayRotation 314 && isCameraIdle()) { 315 startPreview(); 316 } 317 if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) { 318 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 319 } 320 break; 321 } 322 323 case RESET_TOUCH_FOCUS: { 324 cancelAutoFocus(); 325 break; 326 } 327 } 328 } 329 } 330 331 private void resetExposureCompensation() { 332 String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, 333 CameraSettings.EXPOSURE_DEFAULT_VALUE); 334 if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { 335 Editor editor = mPreferences.edit(); 336 editor.putString(CameraSettings.KEY_EXPOSURE, "0"); 337 editor.apply(); 338 if (mHeadUpDisplay != null) { 339 mHeadUpDisplay.reloadPreferences(); 340 } 341 if (mIndicatorWheel != null) { 342 mIndicatorWheel.reloadPreferences(); 343 } 344 } 345 } 346 347 private void keepMediaProviderInstance() { 348 // We want to keep a reference to MediaProvider in camera's lifecycle. 349 // TODO: Utilize mMediaProviderClient instance to replace 350 // ContentResolver calls. 351 if (mMediaProviderClient == null) { 352 mMediaProviderClient = getContentResolver() 353 .acquireContentProviderClient(MediaStore.AUTHORITY); 354 } 355 } 356 357 // Snapshots can only be taken after this is called. It should be called 358 // once only. We could have done these things in onCreate() but we want to 359 // make preview screen appear as soon as possible. 360 private void initializeFirstTime() { 361 if (mFirstTimeInitialized) return; 362 363 // Create orientation listenter. This should be done first because it 364 // takes some time to get first orientation. 365 mOrientationListener = new MyOrientationEventListener(Camera.this); 366 mOrientationListener.enable(); 367 368 // Initialize location sevice. 369 mLocationManager = (LocationManager) 370 getSystemService(Context.LOCATION_SERVICE); 371 mRecordLocation = RecordLocationPreference.get( 372 mPreferences, getContentResolver()); 373 initGpsOnScreenIndicator(); 374 if (mRecordLocation) startReceivingLocationUpdates(); 375 376 keepMediaProviderInstance(); 377 checkStorage(); 378 379 // Initialize last picture button. 380 mContentResolver = getContentResolver(); 381 if (!mIsImageCaptureIntent) { // no thumbnail in image capture intent 382 initThumbnailButton(); 383 } 384 385 // Initialize shutter button. 386 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 387 mShutterButton.setOnShutterButtonListener(this); 388 mShutterButton.setVisibility(View.VISIBLE); 389 390 // Initialize focus UI. 391 mPreviewFrame = findViewById(R.id.camera_preview); 392 mPreviewFrame.setOnTouchListener(this); 393 mPreviewBorder = findViewById(R.id.preview_border); 394 // Set the length of focus rectangle according to preview frame size. 395 int len = Math.min(mPreviewFrame.getWidth(), mPreviewFrame.getHeight()) / 4; 396 ViewGroup.LayoutParams layout = mFocusRectangle.getLayoutParams(); 397 layout.width = len; 398 layout.height = len; 399 400 initializeScreenBrightness(); 401 installIntentFilter(); 402 initializeFocusTone(); 403 initializeZoom(); 404 // w1024dp devices use indicator wheel. Other devices use head-up display. 405 if (mIndicatorWheel == null) { 406 mHeadUpDisplay = new CameraHeadUpDisplay(this); 407 mHeadUpDisplay.setListener(new MyHeadUpDisplayListener()); 408 initializeHeadUpDisplay(); 409 } 410 mFirstTimeInitialized = true; 411 changeHeadUpDisplayState(); 412 addIdleHandler(); 413 } 414 415 private void addIdleHandler() { 416 MessageQueue queue = Looper.myQueue(); 417 queue.addIdleHandler(new MessageQueue.IdleHandler() { 418 public boolean queueIdle() { 419 Storage.ensureOSXCompatible(); 420 return false; 421 } 422 }); 423 } 424 425 private void initThumbnailButton() { 426 mShareButton.setOnClickListener(this); 427 // Load the thumbnail from the disk. 428 mThumbnail = Thumbnail.loadFrom(new File(getFilesDir(), LAST_THUMB_FILENAME)); 429 updateThumbnailButton(); 430 } 431 432 private void updateThumbnailButton() { 433 // Update last image if URI is invalid and the storage is ready. 434 if ((mThumbnail == null || !Util.isUriValid(mThumbnail.getUri(), mContentResolver)) 435 && mPicturesRemaining >= 0) { 436 mThumbnail = Thumbnail.getLastImageThumbnail(mContentResolver); 437 } 438 if (mThumbnail != null) { 439 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 440 } else { 441 mThumbnailView.setBitmap(null); 442 } 443 } 444 445 // If the activity is paused and resumed, this method will be called in 446 // onResume. 447 private void initializeSecondTime() { 448 // Start orientation listener as soon as possible because it takes 449 // some time to get first orientation. 450 mOrientationListener.enable(); 451 452 // Start location update if needed. 453 mRecordLocation = RecordLocationPreference.get( 454 mPreferences, getContentResolver()); 455 if (mRecordLocation) startReceivingLocationUpdates(); 456 457 installIntentFilter(); 458 initializeFocusTone(); 459 initializeZoom(); 460 changeHeadUpDisplayState(); 461 462 keepMediaProviderInstance(); 463 checkStorage(); 464 465 if (!mIsImageCaptureIntent) { 466 updateThumbnailButton(); 467 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 468 } 469 } 470 471 private void initializeZoom() { 472 if (!mParameters.isZoomSupported()) return; 473 474 mZoomMax = mParameters.getMaxZoom(); 475 mSmoothZoomSupported = mParameters.isSmoothZoomSupported(); 476 if (mZoomPicker != null) { 477 mZoomPicker.setZoomRatios(Util.convertZoomRatios(mParameters.getZoomRatios())); 478 mZoomPicker.setZoomIndex(mParameters.getZoom()); 479 mZoomPicker.setSmoothZoomSupported(mSmoothZoomSupported); 480 mZoomPicker.setOnZoomChangeListener( 481 new ZoomPicker.OnZoomChangedListener() { 482 // only for immediate zoom 483 @Override 484 public void onZoomValueChanged(int index) { 485 Camera.this.onZoomValueChanged(index); 486 } 487 488 // only for smooth zoom 489 @Override 490 public void onZoomStateChanged(int state) { 491 if (mPausing) return; 492 493 Log.v(TAG, "zoom picker state=" + state); 494 if (state == ZoomPicker.ZOOM_IN) { 495 Camera.this.onZoomValueChanged(mZoomMax); 496 } else if (state == ZoomPicker.ZOOM_OUT){ 497 Camera.this.onZoomValueChanged(0); 498 } else { 499 mTargetZoomValue = -1; 500 if (mZoomState == ZOOM_START) { 501 mZoomState = ZOOM_STOPPING; 502 mCameraDevice.stopSmoothZoom(); 503 } 504 } 505 } 506 }); 507 } 508 509 mCameraDevice.setZoomChangeListener(mZoomListener); 510 } 511 512 private void onZoomValueChanged(int index) { 513 // Not useful to change zoom value when the activity is paused. 514 if (mPausing) return; 515 516 if (mSmoothZoomSupported) { 517 if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { 518 mTargetZoomValue = index; 519 if (mZoomState == ZOOM_START) { 520 mZoomState = ZOOM_STOPPING; 521 mCameraDevice.stopSmoothZoom(); 522 } 523 } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { 524 mTargetZoomValue = index; 525 mCameraDevice.startSmoothZoom(index); 526 mZoomState = ZOOM_START; 527 } 528 } else { 529 mZoomValue = index; 530 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 531 } 532 } 533 534 private class PopupGestureListener 535 extends GestureDetector.SimpleOnGestureListener { 536 @Override 537 public boolean onDown(MotionEvent e) { 538 // Check if the popup window is visible. 539 View popup = mIndicatorWheel.getActiveSettingPopup(); 540 if (popup == null) return false; 541 542 543 // Let popup window, indicator wheel or preview frame handle the 544 // event by themselves. Dismiss the popup window if users touch on 545 // other areas. 546 if (!Util.pointInView(e.getX(), e.getY(), popup) 547 && !Util.pointInView(e.getX(), e.getY(), mIndicatorWheel) 548 && !Util.pointInView(e.getX(), e.getY(), mPreviewFrame)) { 549 mIndicatorWheel.dismissSettingPopup(); 550 // Let event fall through. 551 } 552 return false; 553 } 554 } 555 556 @Override 557 public boolean dispatchTouchEvent(MotionEvent m) { 558 // Check if the popup window should be dismissed first. 559 if (mPopupGestureDetector != null && mPopupGestureDetector.onTouchEvent(m)) { 560 return true; 561 } 562 563 return super.dispatchTouchEvent(m); 564 } 565 566 LocationListener [] mLocationListeners = new LocationListener[] { 567 new LocationListener(LocationManager.GPS_PROVIDER), 568 new LocationListener(LocationManager.NETWORK_PROVIDER) 569 }; 570 571 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 572 @Override 573 public void onReceive(Context context, Intent intent) { 574 String action = intent.getAction(); 575 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 576 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 577 || action.equals(Intent.ACTION_MEDIA_CHECKING)) { 578 checkStorage(); 579 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 580 checkStorage(); 581 if (!mIsImageCaptureIntent) { 582 updateThumbnailButton(); 583 } 584 } 585 } 586 }; 587 588 private void initializeCameraPicker() { 589 mCameraPicker = (CameraPicker) findViewById(R.id.camera_picker); 590 if (mCameraPicker != null) { 591 mCameraPicker.setImageResource(R.drawable.camera_toggle); 592 ListPreference pref = mPreferenceGroup.findPreference( 593 CameraSettings.KEY_CAMERA_ID); 594 if (pref != null) { 595 mCameraPicker.initialize(pref); 596 mCameraPicker.setListener(new MyCameraPickerListener()); 597 } 598 } 599 } 600 601 private void initializeZoomPicker() { 602 View zoomIncrement = findViewById(R.id.zoom_increment); 603 View zoomDecrement = findViewById(R.id.zoom_decrement); 604 TextView zoomRatio = (TextView) findViewById(R.id.zoom_ratio); 605 if (zoomIncrement != null && zoomDecrement != null && mParameters.isZoomSupported()) { 606 mZoomPicker = new ZoomPicker(this, zoomIncrement, zoomDecrement, zoomRatio); 607 } 608 } 609 610 private void initGpsOnScreenIndicator() { 611 mGpsNoSignalView = findViewById(R.id.onscreen_gps_indicator_no_signal); 612 mGpsHasSignalView = findViewById(R.id.onscreen_gps_indicator_on); 613 } 614 615 private void showGpsOnScreenIndicator(boolean hasSignal) { 616 if (hasSignal) { 617 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.INVISIBLE); 618 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.VISIBLE); 619 } else { 620 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.VISIBLE); 621 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.INVISIBLE); 622 } 623 } 624 625 private void hideGpsOnScreenIndicator() { 626 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.INVISIBLE); 627 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.INVISIBLE); 628 } 629 630 private class LocationListener 631 implements android.location.LocationListener { 632 Location mLastLocation; 633 boolean mValid = false; 634 String mProvider; 635 636 public LocationListener(String provider) { 637 mProvider = provider; 638 mLastLocation = new Location(mProvider); 639 } 640 641 public void onLocationChanged(Location newLocation) { 642 if (newLocation.getLatitude() == 0.0 643 && newLocation.getLongitude() == 0.0) { 644 // Hack to filter out 0.0,0.0 locations 645 return; 646 } 647 // If GPS is available before start camera, we won't get status 648 // update so update GPS indicator when we receive data. 649 if (mRecordLocation 650 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 651 showGpsOnScreenIndicator(true); 652 } 653 if (!mValid) { 654 Log.d(TAG, "Got first location."); 655 } 656 mLastLocation.set(newLocation); 657 mValid = true; 658 } 659 660 public void onProviderEnabled(String provider) { 661 } 662 663 public void onProviderDisabled(String provider) { 664 mValid = false; 665 } 666 667 public void onStatusChanged( 668 String provider, int status, Bundle extras) { 669 switch(status) { 670 case LocationProvider.OUT_OF_SERVICE: 671 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 672 mValid = false; 673 if (mRecordLocation && 674 LocationManager.GPS_PROVIDER.equals(provider)) { 675 showGpsOnScreenIndicator(false); 676 } 677 break; 678 } 679 } 680 } 681 682 public Location current() { 683 return mValid ? mLastLocation : null; 684 } 685 } 686 687 private final class ShutterCallback 688 implements android.hardware.Camera.ShutterCallback { 689 public void onShutter() { 690 mShutterCallbackTime = System.currentTimeMillis(); 691 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 692 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 693 updateFocusUI(); 694 } 695 } 696 697 private final class PostViewPictureCallback implements PictureCallback { 698 public void onPictureTaken( 699 byte [] data, android.hardware.Camera camera) { 700 mPostViewPictureCallbackTime = System.currentTimeMillis(); 701 Log.v(TAG, "mShutterToPostViewCallbackTime = " 702 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 703 + "ms"); 704 } 705 } 706 707 private final class RawPictureCallback implements PictureCallback { 708 public void onPictureTaken( 709 byte [] rawData, android.hardware.Camera camera) { 710 mRawPictureCallbackTime = System.currentTimeMillis(); 711 Log.v(TAG, "mShutterToRawCallbackTime = " 712 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 713 } 714 } 715 716 private final class JpegPictureCallback implements PictureCallback { 717 Location mLocation; 718 719 public JpegPictureCallback(Location loc) { 720 mLocation = loc; 721 } 722 723 public void onPictureTaken( 724 final byte [] jpegData, final android.hardware.Camera camera) { 725 if (mPausing) { 726 return; 727 } 728 729 mJpegPictureCallbackTime = System.currentTimeMillis(); 730 // If postview callback has arrived, the captured image is displayed 731 // in postview callback. If not, the captured image is displayed in 732 // raw picture callback. 733 if (mPostViewPictureCallbackTime != 0) { 734 mShutterToPictureDisplayedTime = 735 mPostViewPictureCallbackTime - mShutterCallbackTime; 736 mPictureDisplayedToJpegCallbackTime = 737 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 738 } else { 739 mShutterToPictureDisplayedTime = 740 mRawPictureCallbackTime - mShutterCallbackTime; 741 mPictureDisplayedToJpegCallbackTime = 742 mJpegPictureCallbackTime - mRawPictureCallbackTime; 743 } 744 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 745 + mPictureDisplayedToJpegCallbackTime + "ms"); 746 747 if (!mIsImageCaptureIntent) { 748 enableCameraControls(true); 749 750 // We want to show the taken picture for a while, so we wait 751 // for at least 1.2 second before restarting the preview. 752 long delay = 1200 - mPictureDisplayedToJpegCallbackTime; 753 if (delay < 0) { 754 startPreview(); 755 } else { 756 mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay); 757 } 758 } 759 storeImage(jpegData, camera, mLocation); 760 761 // Check this in advance of each shot so we don't add to shutter 762 // latency. It's true that someone else could write to the SD card in 763 // the mean time and fill it, but that could have happened between the 764 // shutter press and saving the JPEG too. 765 checkStorage(); 766 767 if (!mHandler.hasMessages(RESTART_PREVIEW)) { 768 long now = System.currentTimeMillis(); 769 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 770 Log.v(TAG, "mJpegCallbackFinishTime = " 771 + mJpegCallbackFinishTime + "ms"); 772 mJpegPictureCallbackTime = 0; 773 } 774 } 775 } 776 777 private final class AutoFocusCallback 778 implements android.hardware.Camera.AutoFocusCallback { 779 public void onAutoFocus( 780 boolean focused, android.hardware.Camera camera) { 781 mFocusCallbackTime = System.currentTimeMillis(); 782 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 783 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 784 if (mCameraState == FOCUSING_SNAP_ON_FINISH) { 785 // Take the picture no matter focus succeeds or fails. No need 786 // to play the AF sound if we're about to play the shutter 787 // sound. 788 if (focused) { 789 mCameraState = FOCUS_SUCCESS; 790 } else { 791 mCameraState = FOCUS_FAIL; 792 } 793 updateFocusUI(); 794 capture(); 795 } else if (mCameraState == FOCUSING) { 796 // This happens when (1) user is half-pressing the focus key or 797 // (2) touch focus is triggered. Play the focus tone. Do not 798 // take the picture now. 799 if (focused) { 800 mCameraState = FOCUS_SUCCESS; 801 if (mFocusToneGenerator != null) { 802 mFocusToneGenerator.startTone(ToneGenerator.TONE_PROP_BEEP2); 803 } 804 } else { 805 mCameraState = FOCUS_FAIL; 806 } 807 updateFocusUI(); 808 enableCameraControls(true); 809 // If this is triggered by touch focus, cancel focus after a 810 // while. 811 if (mFocusArea != null) { 812 mHandler.sendEmptyMessageDelayed(RESET_TOUCH_FOCUS, RESET_TOUCH_FOCUS_DELAY); 813 } 814 } else if (mCameraState == IDLE) { 815 // User has released the focus key before focus completes. 816 // Do nothing. 817 } 818 819 } 820 } 821 822 private final class ZoomListener 823 implements android.hardware.Camera.OnZoomChangeListener { 824 @Override 825 public void onZoomChange( 826 int value, boolean stopped, android.hardware.Camera camera) { 827 Log.v(TAG, "Zoom changed: value=" + value + ". stopped="+ stopped); 828 mZoomValue = value; 829 830 // Update the UI when we get zoom value. 831 if (mZoomPicker != null) mZoomPicker.setZoomIndex(value); 832 833 // Keep mParameters up to date. We do not getParameter again in 834 // takePicture. If we do not do this, wrong zoom value will be set. 835 mParameters.setZoom(value); 836 837 if (stopped && mZoomState != ZOOM_STOPPED) { 838 if (mTargetZoomValue != -1 && value != mTargetZoomValue) { 839 mCameraDevice.startSmoothZoom(mTargetZoomValue); 840 mZoomState = ZOOM_START; 841 } else { 842 mZoomState = ZOOM_STOPPED; 843 } 844 } 845 } 846 } 847 848 public void storeImage(final byte[] data, 849 android.hardware.Camera camera, Location loc) { 850 if (!mIsImageCaptureIntent) { 851 long dateTaken = System.currentTimeMillis(); 852 String title = createName(dateTaken); 853 int orientation = Exif.getOrientation(data); 854 Uri uri = Storage.addImage(mContentResolver, title, dateTaken, 855 loc, orientation, data); 856 if (uri != null) { 857 // Create a thumbnail whose size is smaller than half of the surface view. 858 int ratio = (int) Math.ceil((double) mParameters.getPictureSize().width 859 / (mPreviewFrame.getWidth() / 2)); 860 int inSampleSize = Util.nextPowerOf2(ratio); 861 mThumbnail = Thumbnail.createThumbnail(data, orientation, inSampleSize, uri); 862 if (mThumbnail != null) { 863 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 864 } 865 866 sendBroadcast(new Intent(android.hardware.Camera.ACTION_NEW_PICTURE, uri)); 867 // Keep compatibility 868 sendBroadcast(new Intent("com.android.camera.NEW_PICTURE", uri)); 869 } 870 } else { 871 mJpegImageData = data; 872 if (!mQuickCapture) { 873 showPostCaptureAlert(); 874 } else { 875 doAttach(); 876 } 877 } 878 } 879 880 private void capture() { 881 // If we are already in the middle of taking a snapshot then ignore. 882 if (mPausing || mCameraState == SNAPSHOT_IN_PROGRESS || mCameraDevice == null) { 883 return; 884 } 885 mCaptureStartTime = System.currentTimeMillis(); 886 mPostViewPictureCallbackTime = 0; 887 enableCameraControls(false); 888 mJpegImageData = null; 889 890 // See android.hardware.Camera.Parameters.setRotation for 891 // documentation. 892 int rotation = 0; 893 if (mOrientation != OrientationEventListener.ORIENTATION_UNKNOWN) { 894 CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; 895 if (info.facing == CameraInfo.CAMERA_FACING_FRONT) { 896 rotation = (info.orientation - mOrientation + 360) % 360; 897 } else { // back-facing camera 898 rotation = (info.orientation + mOrientation) % 360; 899 } 900 } 901 mParameters.setRotation(rotation); 902 903 // Clear previous GPS location from the parameters. 904 mParameters.removeGpsData(); 905 906 // We always encode GpsTimeStamp 907 mParameters.setGpsTimestamp(System.currentTimeMillis() / 1000); 908 909 // Set GPS location. 910 Location loc = mRecordLocation ? getCurrentLocation() : null; 911 if (loc != null) { 912 double lat = loc.getLatitude(); 913 double lon = loc.getLongitude(); 914 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 915 916 if (hasLatLon) { 917 Log.d(TAG, "Set gps location"); 918 mParameters.setGpsLatitude(lat); 919 mParameters.setGpsLongitude(lon); 920 mParameters.setGpsProcessingMethod(loc.getProvider().toUpperCase()); 921 if (loc.hasAltitude()) { 922 mParameters.setGpsAltitude(loc.getAltitude()); 923 } else { 924 // for NETWORK_PROVIDER location provider, we may have 925 // no altitude information, but the driver needs it, so 926 // we fake one. 927 mParameters.setGpsAltitude(0); 928 } 929 if (loc.getTime() != 0) { 930 // Location.getTime() is UTC in milliseconds. 931 // gps-timestamp is UTC in seconds. 932 long utcTimeSeconds = loc.getTime() / 1000; 933 mParameters.setGpsTimestamp(utcTimeSeconds); 934 } 935 } else { 936 loc = null; 937 } 938 } 939 940 mCameraDevice.setParameters(mParameters); 941 942 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 943 mPostViewPictureCallback, new JpegPictureCallback(loc)); 944 mCameraState = SNAPSHOT_IN_PROGRESS; 945 mHandler.removeMessages(RESET_TOUCH_FOCUS); 946 } 947 948 private boolean saveDataToFile(String filePath, byte[] data) { 949 FileOutputStream f = null; 950 try { 951 f = new FileOutputStream(filePath); 952 f.write(data); 953 } catch (IOException e) { 954 return false; 955 } finally { 956 Util.closeSilently(f); 957 } 958 return true; 959 } 960 961 private String createName(long dateTaken) { 962 Date date = new Date(dateTaken); 963 SimpleDateFormat dateFormat = new SimpleDateFormat( 964 getString(R.string.image_file_name_format)); 965 966 return dateFormat.format(date); 967 } 968 969 @Override 970 public void onCreate(Bundle icicle) { 971 super.onCreate(icicle); 972 973 mIsImageCaptureIntent = isImageCaptureIntent(); 974 if (mIsImageCaptureIntent) { 975 setContentView(R.layout.camera_attach); 976 } else { 977 setContentView(R.layout.camera); 978 } 979 mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); 980 mShareButton = findViewById(R.id.share_button); 981 mThumbnailView = (RotateImageView) findViewById(R.id.thumbnail); 982 mShareIcon = (RotateImageView) findViewById(R.id.share_icon); 983 984 mPreferences = new ComboPreferences(this); 985 CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal()); 986 987 mCameraId = CameraSettings.readPreferredCameraId(mPreferences); 988 989 // Testing purpose. Launch a specific camera through the intent extras. 990 int intentCameraId = Util.getCameraFacingIntentExtras(this); 991 if (intentCameraId != -1) { 992 mCameraId = intentCameraId; 993 } 994 995 mPreferences.setLocalId(this, mCameraId); 996 CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); 997 998 mNumberOfCameras = CameraHolder.instance().getNumberOfCameras(); 999 mQuickCapture = getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false); 1000 1001 // we need to reset exposure for the preview 1002 resetExposureCompensation(); 1003 1004 /* 1005 * To reduce startup time, we start the preview in another thread. 1006 * We make sure the preview is started at the end of onCreate. 1007 */ 1008 Thread startPreviewThread = new Thread(new Runnable() { 1009 public void run() { 1010 try { 1011 mCameraDevice = Util.openCamera(Camera.this, mCameraId); 1012 mInitialParams = mCameraDevice.getParameters(); 1013 startPreview(); 1014 } catch (CameraHardwareException e) { 1015 mOpenCameraFail = true; 1016 } catch (CameraDisabledException e) { 1017 mCameraDisabled = true; 1018 } 1019 } 1020 }); 1021 startPreviewThread.start(); 1022 1023 // don't set mSurfaceHolder here. We have it set ONLY within 1024 // surfaceChanged / surfaceDestroyed, other parts of the code 1025 // assume that when it is set, the surface is also set. 1026 SurfaceView preview = (SurfaceView) findViewById(R.id.camera_preview); 1027 SurfaceHolder holder = preview.getHolder(); 1028 holder.addCallback(this); 1029 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 1030 1031 if (mIsImageCaptureIntent) { 1032 setupCaptureParams(); 1033 1034 findViewById(R.id.review_control).setVisibility(View.VISIBLE); 1035 findViewById(R.id.btn_cancel).setOnClickListener(this); 1036 findViewById(R.id.btn_retake).setOnClickListener(this); 1037 findViewById(R.id.btn_done).setOnClickListener(this); 1038 } else { 1039 mModePicker = (ModePicker) findViewById(R.id.mode_picker); 1040 mModePicker.setVisibility(View.VISIBLE); 1041 mModePicker.setOnModeChangeListener(this); 1042 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 1043 } 1044 1045 // Make sure preview is started. 1046 try { 1047 startPreviewThread.join(); 1048 if (mOpenCameraFail) { 1049 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1050 return; 1051 } else if (mCameraDisabled) { 1052 Util.showErrorAndFinish(this, R.string.camera_disabled); 1053 return; 1054 } 1055 } catch (InterruptedException ex) { 1056 // ignore 1057 } 1058 1059 mBackCameraId = CameraHolder.instance().getBackCameraId(); 1060 mFrontCameraId = CameraHolder.instance().getFrontCameraId(); 1061 1062 // Do this after starting preview because it depends on camera 1063 // parameters. 1064 initializeIndicatorWheel(); 1065 initializeCameraPicker(); 1066 initializeZoomPicker(); 1067 } 1068 1069 private void changeHeadUpDisplayState() { 1070 if (mHeadUpDisplay == null) return; 1071 // If the camera resumes behind the lock screen, the orientation 1072 // will be portrait. That causes OOM when we try to allocation GPU 1073 // memory for the GLSurfaceView again when the orientation changes. So, 1074 // we delayed initialization of HeadUpDisplay until the orientation 1075 // becomes landscape. 1076 Configuration config = getResources().getConfiguration(); 1077 if (config.orientation == Configuration.ORIENTATION_LANDSCAPE 1078 && !mPausing && mFirstTimeInitialized) { 1079 if (mGLRootView == null) attachHeadUpDisplay(); 1080 } else if (mGLRootView != null) { 1081 detachHeadUpDisplay(); 1082 } 1083 } 1084 1085 private void overrideCameraSettings(final String flashMode, 1086 final String whiteBalance, final String focusMode) { 1087 if (mHeadUpDisplay != null) { 1088 mHeadUpDisplay.overrideSettings( 1089 CameraSettings.KEY_FLASH_MODE, flashMode, 1090 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 1091 CameraSettings.KEY_FOCUS_MODE, focusMode); 1092 } 1093 if (mIndicatorWheel != null) { 1094 mIndicatorWheel.overrideSettings( 1095 CameraSettings.KEY_FLASH_MODE, flashMode, 1096 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 1097 CameraSettings.KEY_FOCUS_MODE, focusMode); 1098 } 1099 } 1100 1101 private void updateSceneModeUI() { 1102 // If scene mode is set, we cannot set flash mode, white balance, and 1103 // focus mode, instead, we read it from driver 1104 if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1105 overrideCameraSettings(mParameters.getFlashMode(), 1106 mParameters.getWhiteBalance(), mParameters.getFocusMode()); 1107 } else { 1108 overrideCameraSettings(null, null, null); 1109 } 1110 } 1111 1112 private void loadCameraPreferences() { 1113 CameraSettings settings = new CameraSettings(this, mInitialParams, 1114 mCameraId, CameraHolder.instance().getCameraInfo()); 1115 mPreferenceGroup = settings.getPreferenceGroup(R.xml.camera_preferences); 1116 } 1117 1118 private void initializeIndicatorWheel() { 1119 mIndicatorWheel = (IndicatorWheel) findViewById(R.id.indicator_wheel); 1120 if (mIndicatorWheel == null) return; 1121 loadCameraPreferences(); 1122 1123 final String[] SETTING_KEYS = { 1124 CameraSettings.KEY_FLASH_MODE}; 1125 final String[] OTHER_SETTING_KEYS = { 1126 CameraSettings.KEY_WHITE_BALANCE, 1127 CameraSettings.KEY_COLOR_EFFECT, 1128 CameraSettings.KEY_SCENE_MODE, 1129 CameraSettings.KEY_RECORD_LOCATION, 1130 CameraSettings.KEY_FOCUS_MODE, 1131 CameraSettings.KEY_EXPOSURE, 1132 CameraSettings.KEY_PICTURE_SIZE}; 1133 mIndicatorWheel.initialize(this, mPreferenceGroup, SETTING_KEYS, 1134 OTHER_SETTING_KEYS); 1135 mIndicatorWheel.setListener(new MyIndicatorWheelListener()); 1136 mPopupGestureDetector = new GestureDetector(this, 1137 new PopupGestureListener()); 1138 updateSceneModeUI(); 1139 } 1140 1141 private void initializeHeadUpDisplay() { 1142 if (mHeadUpDisplay == null) return; 1143 loadCameraPreferences(); 1144 1145 float[] zoomRatios = null; 1146 if(mParameters.isZoomSupported()) { 1147 zoomRatios = Util.convertZoomRatios(mParameters.getZoomRatios()); 1148 } 1149 mHeadUpDisplay.initialize(this, mPreferenceGroup, 1150 zoomRatios, mOrientationCompensation); 1151 if (mParameters.isZoomSupported()) { 1152 mHeadUpDisplay.setZoomListener(new ZoomControllerListener() { 1153 public void onZoomChanged( 1154 int index, float ratio, boolean isMoving) { 1155 onZoomValueChanged(index); 1156 } 1157 }); 1158 } 1159 updateSceneModeUI(); 1160 } 1161 1162 private void attachHeadUpDisplay() { 1163 mHeadUpDisplay.setOrientation(mOrientationCompensation); 1164 if (mParameters.isZoomSupported()) { 1165 mHeadUpDisplay.setZoomIndex(mZoomValue); 1166 } 1167 ViewGroup frame = (ViewGroup) findViewById(R.id.frame); 1168 mGLRootView = new GLRootView(this); 1169 mGLRootView.setContentPane(mHeadUpDisplay); 1170 frame.addView(mGLRootView); 1171 } 1172 1173 private void detachHeadUpDisplay() { 1174 mHeadUpDisplay.collapse(); 1175 ((ViewGroup) mGLRootView.getParent()).removeView(mGLRootView); 1176 mGLRootView = null; 1177 } 1178 1179 private boolean collapseCameraControls() { 1180 if (mHeadUpDisplay != null && mHeadUpDisplay.collapse()) { 1181 return true; 1182 } 1183 if (mIndicatorWheel != null && mIndicatorWheel.dismissSettingPopup()) { 1184 return true; 1185 } 1186 return false; 1187 } 1188 1189 private void enableCameraControls(boolean enable) { 1190 if (mHeadUpDisplay != null) mHeadUpDisplay.setEnabled(enable); 1191 if (mIndicatorWheel != null) mIndicatorWheel.setEnabled(enable); 1192 if (mCameraPicker != null) mCameraPicker.setEnabled(enable); 1193 if (mZoomPicker != null) mZoomPicker.setEnabled(enable); 1194 if (mModePicker != null) mModePicker.setEnabled(enable); 1195 } 1196 1197 public static int roundOrientation(int orientation) { 1198 return ((orientation + 45) / 90 * 90) % 360; 1199 } 1200 1201 private class MyOrientationEventListener 1202 extends OrientationEventListener { 1203 public MyOrientationEventListener(Context context) { 1204 super(context); 1205 } 1206 1207 @Override 1208 public void onOrientationChanged(int orientation) { 1209 // We keep the last known orientation. So if the user first orient 1210 // the camera then point the camera to floor or sky, we still have 1211 // the correct orientation. 1212 if (orientation == ORIENTATION_UNKNOWN) return; 1213 mOrientation = roundOrientation(orientation); 1214 // When the screen is unlocked, display rotation may change. Always 1215 // calculate the up-to-date orientationCompensation. 1216 int orientationCompensation = mOrientation 1217 + Util.getDisplayRotation(Camera.this); 1218 if (mOrientationCompensation != orientationCompensation) { 1219 mOrientationCompensation = orientationCompensation; 1220 if (!mIsImageCaptureIntent) { 1221 setOrientationIndicator(mOrientationCompensation); 1222 } 1223 } 1224 } 1225 } 1226 1227 private void setOrientationIndicator(int degree) { 1228 if (mHeadUpDisplay != null) mHeadUpDisplay.setOrientation(mOrientationCompensation); 1229 if (mThumbnailView != null) mThumbnailView.setDegree(degree); 1230 if (mShareIcon != null) mShareIcon.setDegree(degree); 1231 if (mModePicker != null) mModePicker.setDegree(degree); 1232 if (mSharePopup != null) mSharePopup.setOrientation(degree); 1233 if (mIndicatorWheel != null) mIndicatorWheel.setDegree(degree); 1234 } 1235 1236 @Override 1237 public void onStop() { 1238 super.onStop(); 1239 if (mMediaProviderClient != null) { 1240 mMediaProviderClient.release(); 1241 mMediaProviderClient = null; 1242 } 1243 } 1244 1245 private void checkStorage() { 1246 mPicturesRemaining = Storage.getAvailableSpace(); 1247 if (mPicturesRemaining > 0) { 1248 mPicturesRemaining /= 1500000; 1249 } 1250 updateStorageHint(); 1251 } 1252 1253 @Override 1254 public void onClick(View v) { 1255 switch (v.getId()) { 1256 case R.id.share_button: 1257 if (isCameraIdle() && mThumbnail != null) { 1258 showSharePopup(); 1259 } 1260 break; 1261 case R.id.btn_retake: 1262 hidePostCaptureAlert(); 1263 startPreview(); 1264 break; 1265 case R.id.btn_done: 1266 doAttach(); 1267 break; 1268 case R.id.btn_cancel: 1269 doCancel(); 1270 break; 1271 } 1272 } 1273 1274 private void doAttach() { 1275 if (mPausing) { 1276 return; 1277 } 1278 1279 byte[] data = mJpegImageData; 1280 1281 if (mCropValue == null) { 1282 // First handle the no crop case -- just return the value. If the 1283 // caller specifies a "save uri" then write the data to it's 1284 // stream. Otherwise, pass back a scaled down version of the bitmap 1285 // directly in the extras. 1286 if (mSaveUri != null) { 1287 OutputStream outputStream = null; 1288 try { 1289 outputStream = mContentResolver.openOutputStream(mSaveUri); 1290 outputStream.write(data); 1291 outputStream.close(); 1292 1293 setResultEx(RESULT_OK); 1294 finish(); 1295 } catch (IOException ex) { 1296 // ignore exception 1297 } finally { 1298 Util.closeSilently(outputStream); 1299 } 1300 } else { 1301 int orientation = Exif.getOrientation(data); 1302 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1303 bitmap = Util.rotate(bitmap, orientation); 1304 setResultEx(RESULT_OK, 1305 new Intent("inline-data").putExtra("data", bitmap)); 1306 finish(); 1307 } 1308 } else { 1309 // Save the image to a temp file and invoke the cropper 1310 Uri tempUri = null; 1311 FileOutputStream tempStream = null; 1312 try { 1313 File path = getFileStreamPath(sTempCropFilename); 1314 path.delete(); 1315 tempStream = openFileOutput(sTempCropFilename, 0); 1316 tempStream.write(data); 1317 tempStream.close(); 1318 tempUri = Uri.fromFile(path); 1319 } catch (FileNotFoundException ex) { 1320 setResultEx(Activity.RESULT_CANCELED); 1321 finish(); 1322 return; 1323 } catch (IOException ex) { 1324 setResultEx(Activity.RESULT_CANCELED); 1325 finish(); 1326 return; 1327 } finally { 1328 Util.closeSilently(tempStream); 1329 } 1330 1331 Bundle newExtras = new Bundle(); 1332 if (mCropValue.equals("circle")) { 1333 newExtras.putString("circleCrop", "true"); 1334 } 1335 if (mSaveUri != null) { 1336 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1337 } else { 1338 newExtras.putBoolean("return-data", true); 1339 } 1340 1341 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1342 1343 cropIntent.setData(tempUri); 1344 cropIntent.putExtras(newExtras); 1345 1346 startActivityForResult(cropIntent, CROP_MSG); 1347 } 1348 } 1349 1350 private void doCancel() { 1351 setResultEx(RESULT_CANCELED, new Intent()); 1352 finish(); 1353 } 1354 1355 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1356 if (mPausing) { 1357 return; 1358 } 1359 switch (button.getId()) { 1360 case R.id.shutter_button: 1361 doFocus(pressed); 1362 break; 1363 } 1364 } 1365 1366 public void onShutterButtonClick(ShutterButton button) { 1367 if (mPausing) { 1368 return; 1369 } 1370 switch (button.getId()) { 1371 case R.id.shutter_button: 1372 doSnap(); 1373 break; 1374 } 1375 } 1376 1377 private OnScreenHint mStorageHint; 1378 1379 private void updateStorageHint() { 1380 String noStorageText = null; 1381 1382 if (mPicturesRemaining == Storage.UNAVAILABLE) { 1383 noStorageText = getString(R.string.no_storage); 1384 } else if (mPicturesRemaining == Storage.PREPARING) { 1385 noStorageText = getString(R.string.preparing_sd); 1386 } else if (mPicturesRemaining == Storage.UNKNOWN_SIZE) { 1387 noStorageText = getString(R.string.access_sd_fail); 1388 } else if (mPicturesRemaining < 1L) { 1389 noStorageText = getString(R.string.not_enough_space); 1390 } 1391 1392 if (noStorageText != null) { 1393 if (mStorageHint == null) { 1394 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1395 } else { 1396 mStorageHint.setText(noStorageText); 1397 } 1398 mStorageHint.show(); 1399 } else if (mStorageHint != null) { 1400 mStorageHint.cancel(); 1401 mStorageHint = null; 1402 } 1403 } 1404 1405 private void installIntentFilter() { 1406 // install an intent filter to receive SD card related events. 1407 IntentFilter intentFilter = 1408 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1409 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1410 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1411 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1412 intentFilter.addDataScheme("file"); 1413 registerReceiver(mReceiver, intentFilter); 1414 mDidRegister = true; 1415 } 1416 1417 private void initializeFocusTone() { 1418 // Initialize focus tone generator. 1419 try { 1420 mFocusToneGenerator = new ToneGenerator( 1421 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1422 } catch (Throwable ex) { 1423 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1424 mFocusToneGenerator = null; 1425 } 1426 } 1427 1428 private void initializeScreenBrightness() { 1429 Window win = getWindow(); 1430 // Overright the brightness settings if it is automatic 1431 int mode = Settings.System.getInt( 1432 getContentResolver(), 1433 Settings.System.SCREEN_BRIGHTNESS_MODE, 1434 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); 1435 if (mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC) { 1436 WindowManager.LayoutParams winParams = win.getAttributes(); 1437 winParams.screenBrightness = DEFAULT_CAMERA_BRIGHTNESS; 1438 win.setAttributes(winParams); 1439 } 1440 } 1441 1442 @Override 1443 protected void onResume() { 1444 super.onResume(); 1445 mPausing = false; 1446 if (mOpenCameraFail || mCameraDisabled) return; 1447 1448 mJpegPictureCallbackTime = 0; 1449 mZoomValue = 0; 1450 1451 // Start the preview if it is not started. 1452 if (mCameraState == PREVIEW_STOPPED) { 1453 try { 1454 mCameraDevice = Util.openCamera(this, mCameraId); 1455 mInitialParams = mCameraDevice.getParameters(); 1456 resetExposureCompensation(); 1457 startPreview(); 1458 } catch(CameraHardwareException e) { 1459 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1460 return; 1461 } catch(CameraDisabledException e) { 1462 Util.showErrorAndFinish(this, R.string.camera_disabled); 1463 return; 1464 } 1465 } 1466 1467 if (mSurfaceHolder != null) { 1468 // If first time initialization is not finished, put it in the 1469 // message queue. 1470 if (!mFirstTimeInitialized) { 1471 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1472 } else { 1473 initializeSecondTime(); 1474 } 1475 } 1476 keepScreenOnAwhile(); 1477 1478 if (mCameraState == IDLE) { 1479 mOnResumeTime = SystemClock.uptimeMillis(); 1480 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 1481 } 1482 } 1483 1484 @Override 1485 public void onConfigurationChanged(Configuration config) { 1486 super.onConfigurationChanged(config); 1487 changeHeadUpDisplayState(); 1488 } 1489 1490 @Override 1491 protected void onPause() { 1492 mPausing = true; 1493 stopPreview(); 1494 // Close the camera now because other activities may need to use it. 1495 closeCamera(); 1496 resetScreenOn(); 1497 collapseCameraControls(); 1498 changeHeadUpDisplayState(); 1499 1500 if (mFirstTimeInitialized) { 1501 mOrientationListener.disable(); 1502 if (!mIsImageCaptureIntent) { 1503 if (mThumbnail != null) { 1504 mThumbnail.saveTo(new File(getFilesDir(), LAST_THUMB_FILENAME)); 1505 } 1506 } 1507 hidePostCaptureAlert(); 1508 } 1509 1510 if (mSharePopup != null) mSharePopup.dismiss(); 1511 1512 if (mDidRegister) { 1513 unregisterReceiver(mReceiver); 1514 mDidRegister = false; 1515 } 1516 stopReceivingLocationUpdates(); 1517 1518 if (mFocusToneGenerator != null) { 1519 mFocusToneGenerator.release(); 1520 mFocusToneGenerator = null; 1521 } 1522 1523 if (mStorageHint != null) { 1524 mStorageHint.cancel(); 1525 mStorageHint = null; 1526 } 1527 1528 // If we are in an image capture intent and has taken 1529 // a picture, we just clear it in onPause. 1530 mJpegImageData = null; 1531 1532 // Remove the messages in the event queue. 1533 mHandler.removeMessages(RESTART_PREVIEW); 1534 mHandler.removeMessages(FIRST_TIME_INIT); 1535 mHandler.removeMessages(CHECK_DISPLAY_ROTATION); 1536 mHandler.removeMessages(RESET_TOUCH_FOCUS); 1537 1538 super.onPause(); 1539 } 1540 1541 @Override 1542 protected void onActivityResult( 1543 int requestCode, int resultCode, Intent data) { 1544 switch (requestCode) { 1545 case CROP_MSG: { 1546 Intent intent = new Intent(); 1547 if (data != null) { 1548 Bundle extras = data.getExtras(); 1549 if (extras != null) { 1550 intent.putExtras(extras); 1551 } 1552 } 1553 setResultEx(resultCode, intent); 1554 finish(); 1555 1556 File path = getFileStreamPath(sTempCropFilename); 1557 path.delete(); 1558 1559 break; 1560 } 1561 } 1562 } 1563 1564 private boolean canTakePicture() { 1565 return isCameraIdle() && (mPicturesRemaining > 0); 1566 } 1567 1568 private void autoFocus() { 1569 Log.v(TAG, "Start autofocus."); 1570 mFocusStartTime = System.currentTimeMillis(); 1571 mCameraDevice.autoFocus(mAutoFocusCallback); 1572 mCameraState = FOCUSING; 1573 enableCameraControls(false); 1574 updateFocusUI(); 1575 mHandler.removeMessages(RESET_TOUCH_FOCUS); 1576 } 1577 1578 private void cancelAutoFocus() { 1579 Log.v(TAG, "Cancel autofocus."); 1580 mCameraDevice.cancelAutoFocus(); 1581 mCameraState = IDLE; 1582 enableCameraControls(true); 1583 resetTouchFocus(); 1584 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1585 updateFocusUI(); 1586 mHandler.removeMessages(RESET_TOUCH_FOCUS); 1587 } 1588 1589 private void updateFocusUI() { 1590 if (mCameraState == FOCUSING || mCameraState == FOCUSING_SNAP_ON_FINISH) { 1591 mFocusRectangle.showStart(); 1592 } else if (mCameraState == FOCUS_SUCCESS) { 1593 mFocusRectangle.showSuccess(); 1594 } else if (mCameraState == FOCUS_FAIL) { 1595 mFocusRectangle.showFail(); 1596 } else if (mCameraState == IDLE && mFocusArea != null) { 1597 // Users touch on the preview and the rectangle indicates the metering area. 1598 // Either focus area is not supported or autoFocus call is not required. 1599 mFocusRectangle.showStart(); 1600 } else { 1601 mFocusRectangle.clear(); 1602 } 1603 } 1604 1605 // Preview area is touched. Handle touch focus. 1606 @Override 1607 public boolean onTouch(View v, MotionEvent e) { 1608 if (mPausing || !mFirstTimeInitialized || mCameraState == SNAPSHOT_IN_PROGRESS 1609 || mCameraState == FOCUSING_SNAP_ON_FINISH) { 1610 return false; 1611 } 1612 1613 // Do not trigger touch focus if popup window is opened. 1614 if (collapseCameraControls()) return false; 1615 1616 // Check if metering area or focus area is supported. 1617 boolean focusAreaSupported = (mParameters.getMaxNumFocusAreas() > 0 1618 && (mFocusMode.equals(Parameters.FOCUS_MODE_AUTO) || 1619 mFocusMode.equals(Parameters.FOCUS_MODE_MACRO) || 1620 mFocusMode.equals(Parameters.FOCUS_MODE_CONTINUOUS_VIDEO))); 1621 boolean meteringAreaSupported = (mParameters.getMaxNumMeteringAreas() > 0); 1622 if (!focusAreaSupported && !meteringAreaSupported) return false; 1623 1624 boolean callAutoFocusRequired = false; 1625 if (focusAreaSupported && 1626 (mFocusMode.equals(Parameters.FOCUS_MODE_AUTO) || 1627 mFocusMode.equals(Parameters.FOCUS_MODE_MACRO))) { 1628 callAutoFocusRequired = true; 1629 } 1630 1631 // Let users be able to cancel previous touch focus. 1632 if (callAutoFocusRequired && mFocusArea != null && e.getAction() == MotionEvent.ACTION_DOWN 1633 && (mCameraState == FOCUSING || mCameraState == FOCUS_SUCCESS || 1634 mCameraState == FOCUS_FAIL)) { 1635 cancelAutoFocus(); 1636 } 1637 1638 // Initialize variables. 1639 int x = Math.round(e.getX()); 1640 int y = Math.round(e.getY()); 1641 int focusWidth = mFocusRectangle.getWidth(); 1642 int focusHeight = mFocusRectangle.getHeight(); 1643 int previewWidth = mPreviewFrame.getWidth(); 1644 int previewHeight = mPreviewFrame.getHeight(); 1645 if (mFocusArea == null) { 1646 mFocusArea = new ArrayList<Area>(); 1647 mFocusArea.add(new Area(new Rect(), 1)); 1648 } 1649 1650 // Convert the coordinates to driver format. The actual focus area is two times bigger than 1651 // UI because a huge rectangle looks strange. 1652 int areaWidth = focusWidth * 2; 1653 int areaHeight = focusHeight * 2; 1654 int areaLeft = Util.clamp(x - areaWidth / 2, 0, previewWidth - areaWidth); 1655 int areaTop = Util.clamp(y - areaHeight / 2, 0, previewHeight - areaHeight); 1656 Log.d(TAG, "x=" + x + ". y=" + y); 1657 Log.d(TAG, "Focus area left=" + areaLeft + ". top=" + areaTop); 1658 Log.d(TAG, "Preview width=" + previewWidth + ". height=" + previewHeight); 1659 Log.d(TAG, "focusWidth=" + focusWidth + ". focusHeight=" + focusHeight); 1660 Rect rect = mFocusArea.get(0).rect; 1661 convertToFocusArea(areaLeft, areaTop, areaWidth, areaHeight, previewWidth, previewHeight, 1662 mFocusArea.get(0).rect); 1663 1664 // Use margin to set the focus rectangle to the touched area. 1665 RelativeLayout.LayoutParams p = 1666 (RelativeLayout.LayoutParams) mFocusRectangle.getLayoutParams(); 1667 int left = Util.clamp(x - focusWidth / 2, 0, previewWidth - focusWidth); 1668 int top = Util.clamp(y - focusHeight / 2, 0, previewHeight - focusHeight); 1669 p.setMargins(left, top, 0, 0); 1670 // Disable "center" rule because we no longer want to put it in the center. 1671 int[] rules = p.getRules(); 1672 rules[RelativeLayout.CENTER_IN_PARENT] = 0; 1673 mFocusRectangle.requestLayout(); 1674 1675 // Set the focus area and metering area. 1676 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1677 if (callAutoFocusRequired && e.getAction() == MotionEvent.ACTION_UP) { 1678 autoFocus(); 1679 } else { // Just show the rectangle in all other cases. 1680 updateFocusUI(); 1681 // Reset the metering area in 3 seconds. 1682 mHandler.removeMessages(RESET_TOUCH_FOCUS); 1683 mHandler.sendEmptyMessageDelayed(RESET_TOUCH_FOCUS, RESET_TOUCH_FOCUS_DELAY); 1684 } 1685 1686 return true; 1687 } 1688 1689 // Convert the touch point to the focus area in driver format. 1690 public static void convertToFocusArea(int left, int top, int focusWidth, int focusHeight, 1691 int previewWidth, int previewHeight, Rect rect) { 1692 rect.left = Math.round((float) left / previewWidth * 2000 - 1000); 1693 rect.top = Math.round((float) top / previewHeight * 2000 - 1000); 1694 rect.right = Math.round((float) (left + focusWidth) / previewWidth * 2000 - 1000); 1695 rect.bottom = Math.round((float) (top + focusHeight) / previewHeight * 2000 - 1000); 1696 } 1697 1698 void resetTouchFocus() { 1699 // Put focus rectangle to the center. 1700 RelativeLayout.LayoutParams p = 1701 (RelativeLayout.LayoutParams) mFocusRectangle.getLayoutParams(); 1702 int[] rules = p.getRules(); 1703 rules[RelativeLayout.CENTER_IN_PARENT] = RelativeLayout.TRUE; 1704 p.setMargins(0, 0, 0, 0); 1705 1706 mFocusArea = null; 1707 } 1708 1709 @Override 1710 public void onBackPressed() { 1711 if (!isCameraIdle()) { 1712 // ignore backs while we're taking a picture 1713 return; 1714 } else if (!collapseCameraControls()) { 1715 super.onBackPressed(); 1716 } 1717 } 1718 1719 @Override 1720 public boolean onKeyDown(int keyCode, KeyEvent event) { 1721 switch (keyCode) { 1722 case KeyEvent.KEYCODE_FOCUS: 1723 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1724 doFocus(true); 1725 } 1726 return true; 1727 case KeyEvent.KEYCODE_CAMERA: 1728 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1729 doSnap(); 1730 } 1731 return true; 1732 case KeyEvent.KEYCODE_DPAD_CENTER: 1733 // If we get a dpad center event without any focused view, move 1734 // the focus to the shutter button and press it. 1735 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1736 // Start auto-focus immediately to reduce shutter lag. After 1737 // the shutter button gets the focus, doFocus() will be 1738 // called again but it is fine. 1739 if (collapseCameraControls()) return true; 1740 doFocus(true); 1741 if (mShutterButton.isInTouchMode()) { 1742 mShutterButton.requestFocusFromTouch(); 1743 } else { 1744 mShutterButton.requestFocus(); 1745 } 1746 mShutterButton.setPressed(true); 1747 } 1748 return true; 1749 } 1750 1751 return super.onKeyDown(keyCode, event); 1752 } 1753 1754 @Override 1755 public boolean onKeyUp(int keyCode, KeyEvent event) { 1756 switch (keyCode) { 1757 case KeyEvent.KEYCODE_FOCUS: 1758 if (mFirstTimeInitialized) { 1759 doFocus(false); 1760 } 1761 return true; 1762 } 1763 return super.onKeyUp(keyCode, event); 1764 } 1765 1766 private void doSnap() { 1767 if (collapseCameraControls()) return; 1768 1769 Log.v(TAG, "doSnap: mCameraState=" + mCameraState); 1770 // If the user has half-pressed the shutter and focus is completed, we 1771 // can take the photo right away. If the focus mode is infinity, we can 1772 // also take the photo. 1773 if (mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1774 || mFocusMode.equals(Parameters.FOCUS_MODE_FIXED) 1775 || mFocusMode.equals(Parameters.FOCUS_MODE_EDOF) 1776 || (mCameraState == FOCUS_SUCCESS 1777 || mCameraState == FOCUS_FAIL)) { 1778 capture(); 1779 } else if (mCameraState == FOCUSING) { 1780 // Half pressing the shutter (i.e. the focus button event) will 1781 // already have requested AF for us, so just request capture on 1782 // focus here. 1783 mCameraState = FOCUSING_SNAP_ON_FINISH; 1784 } else if (mCameraState == IDLE) { 1785 // Focus key down event is dropped for some reasons. Just ignore. 1786 } 1787 } 1788 1789 private void doFocus(boolean pressed) { 1790 // Do the focus if the mode is not infinity. 1791 if (collapseCameraControls()) return; 1792 if (!(mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1793 || mFocusMode.equals(Parameters.FOCUS_MODE_FIXED) 1794 || mFocusMode.equals(Parameters.FOCUS_MODE_EDOF))) { 1795 if (pressed) { // Focus key down. 1796 // Do not do focus if there is not enoguh storage. Do not focus 1797 // if touch focus has been triggered, that is, camera state is 1798 // FOCUS_SUCCESS or FOCUS_FAIL. 1799 if (canTakePicture() && mCameraState != FOCUS_SUCCESS 1800 && mCameraState != FOCUS_FAIL) { 1801 autoFocus(); 1802 } 1803 } else { // Focus key up. 1804 // User releases half-pressed focus key. 1805 if (mCameraState == FOCUSING || mCameraState == FOCUS_SUCCESS 1806 || mCameraState == FOCUS_FAIL) { 1807 cancelAutoFocus(); 1808 } 1809 } 1810 } 1811 } 1812 1813 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1814 // Make sure we have a surface in the holder before proceeding. 1815 if (holder.getSurface() == null) { 1816 Log.d(TAG, "holder.getSurface() == null"); 1817 return; 1818 } 1819 1820 Log.v(TAG, "surfaceChanged. w=" + w + ". h=" + h); 1821 1822 // We need to save the holder for later use, even when the mCameraDevice 1823 // is null. This could happen if onResume() is invoked after this 1824 // function. 1825 mSurfaceHolder = holder; 1826 1827 // The mCameraDevice will be null if it fails to connect to the camera 1828 // hardware. In this case we will show a dialog and then finish the 1829 // activity, so it's OK to ignore it. 1830 if (mCameraDevice == null) return; 1831 1832 // Sometimes surfaceChanged is called after onPause or before onResume. 1833 // Ignore it. 1834 if (mPausing || isFinishing()) return; 1835 1836 // Set preview display if the surface is being created. Preview was 1837 // already started. Also restart the preview if display rotation has 1838 // changed. Sometimes this happens when the device is held in portrait 1839 // and camera app is opened. Rotation animation takes some time and 1840 // display rotation in onCreate may not be what we want. 1841 if (mCameraState != PREVIEW_STOPPED 1842 && (Util.getDisplayRotation(this) == mDisplayRotation) 1843 && holder.isCreating()) { 1844 // Set preview display if the surface is being created and preview 1845 // was already started. That means preview display was set to null 1846 // and we need to set it now. 1847 setPreviewDisplay(holder); 1848 } else { 1849 // 1. Restart the preview if the size of surface was changed. The 1850 // framework may not support changing preview display on the fly. 1851 // 2. Start the preview now if surface was destroyed and preview 1852 // stopped. 1853 startPreview(); 1854 } 1855 1856 // If first time initialization is not finished, send a message to do 1857 // it later. We want to finish surfaceChanged as soon as possible to let 1858 // user see preview first. 1859 if (!mFirstTimeInitialized) { 1860 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1861 } else { 1862 initializeSecondTime(); 1863 } 1864 } 1865 1866 public void surfaceCreated(SurfaceHolder holder) { 1867 } 1868 1869 public void surfaceDestroyed(SurfaceHolder holder) { 1870 stopPreview(); 1871 mSurfaceHolder = null; 1872 } 1873 1874 private void closeCamera() { 1875 if (mCameraDevice != null) { 1876 CameraHolder.instance().release(); 1877 mCameraDevice.setZoomChangeListener(null); 1878 mCameraDevice = null; 1879 mCameraState = PREVIEW_STOPPED; 1880 } 1881 } 1882 1883 private void setPreviewDisplay(SurfaceHolder holder) { 1884 try { 1885 mCameraDevice.setPreviewDisplay(holder); 1886 } catch (Throwable ex) { 1887 closeCamera(); 1888 throw new RuntimeException("setPreviewDisplay failed", ex); 1889 } 1890 } 1891 1892 private void startPreview() { 1893 if (mPausing || isFinishing()) return; 1894 1895 resetTouchFocus(); 1896 1897 mCameraDevice.setErrorCallback(mErrorCallback); 1898 1899 // If we're previewing already, stop the preview first (this will blank 1900 // the screen). 1901 if (mCameraState != PREVIEW_STOPPED) stopPreview(); 1902 1903 setPreviewDisplay(mSurfaceHolder); 1904 mDisplayRotation = Util.getDisplayRotation(this); 1905 Util.setCameraDisplayOrientation(mDisplayRotation, mCameraId, mCameraDevice); 1906 setCameraParameters(UPDATE_PARAM_ALL); 1907 1908 1909 try { 1910 Log.v(TAG, "startPreview"); 1911 mCameraDevice.startPreview(); 1912 } catch (Throwable ex) { 1913 closeCamera(); 1914 throw new RuntimeException("startPreview failed", ex); 1915 } 1916 mZoomState = ZOOM_STOPPED; 1917 mCameraState = IDLE; 1918 } 1919 1920 private void stopPreview() { 1921 if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) { 1922 Log.v(TAG, "stopPreview"); 1923 mCameraDevice.stopPreview(); 1924 } 1925 mCameraState = PREVIEW_STOPPED; 1926 // If auto focus was in progress, it would have been canceled. 1927 updateFocusUI(); 1928 } 1929 1930 private static boolean isSupported(String value, List<String> supported) { 1931 return supported == null ? false : supported.indexOf(value) >= 0; 1932 } 1933 1934 private void updateCameraParametersInitialize() { 1935 // Reset preview frame rate to the maximum because it may be lowered by 1936 // video camera application. 1937 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1938 if (frameRates != null) { 1939 Integer max = Collections.max(frameRates); 1940 mParameters.setPreviewFrameRate(max); 1941 } 1942 1943 } 1944 1945 private void updateCameraParametersZoom() { 1946 // Set zoom. 1947 if (mParameters.isZoomSupported()) { 1948 mParameters.setZoom(mZoomValue); 1949 } 1950 } 1951 1952 private void updateCameraParametersPreference() { 1953 if (mParameters.getMaxNumFocusAreas() > 0) { 1954 mParameters.setFocusAreas(mFocusArea); 1955 Log.d(TAG, "Parameter focus areas=" + mParameters.get("focus-areas")); 1956 } 1957 1958 if (mParameters.getMaxNumMeteringAreas() > 0) { 1959 // Use the same area for focus and metering. 1960 mParameters.setMeteringAreas(mFocusArea); 1961 } 1962 1963 // Set picture size. 1964 String pictureSize = mPreferences.getString( 1965 CameraSettings.KEY_PICTURE_SIZE, null); 1966 if (pictureSize == null) { 1967 CameraSettings.initialCameraPictureSize(this, mParameters); 1968 } else { 1969 List<Size> supported = mParameters.getSupportedPictureSizes(); 1970 CameraSettings.setCameraPictureSize( 1971 pictureSize, supported, mParameters); 1972 } 1973 1974 // Set the preview frame aspect ratio according to the picture size. 1975 Size size = mParameters.getPictureSize(); 1976 PreviewFrameLayout frameLayout = 1977 (PreviewFrameLayout) findViewById(R.id.frame_layout); 1978 frameLayout.setAspectRatio((double) size.width / size.height); 1979 1980 // Set a preview size that is closest to the viewfinder height and has 1981 // the right aspect ratio. 1982 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1983 Size optimalSize = Util.getOptimalPreviewSize(this, 1984 sizes, (double) size.width / size.height); 1985 Size original = mParameters.getPreviewSize(); 1986 if (!original.equals(optimalSize)) { 1987 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1988 1989 // Zoom related settings will be changed for different preview 1990 // sizes, so set and read the parameters to get lastest values 1991 mCameraDevice.setParameters(mParameters); 1992 mParameters = mCameraDevice.getParameters(); 1993 } 1994 Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height); 1995 1996 // Since change scene mode may change supported values, 1997 // Set scene mode first, 1998 mSceneMode = mPreferences.getString( 1999 CameraSettings.KEY_SCENE_MODE, 2000 getString(R.string.pref_camera_scenemode_default)); 2001 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 2002 if (!mParameters.getSceneMode().equals(mSceneMode)) { 2003 mParameters.setSceneMode(mSceneMode); 2004 mCameraDevice.setParameters(mParameters); 2005 2006 // Setting scene mode will change the settings of flash mode, 2007 // white balance, and focus mode. Here we read back the 2008 // parameters, so we can know those settings. 2009 mParameters = mCameraDevice.getParameters(); 2010 } 2011 } else { 2012 mSceneMode = mParameters.getSceneMode(); 2013 if (mSceneMode == null) { 2014 mSceneMode = Parameters.SCENE_MODE_AUTO; 2015 } 2016 } 2017 2018 // Set JPEG quality. 2019 int jpegQuality = CameraProfile.getJpegEncodingQualityParameter(mCameraId, 2020 CameraProfile.QUALITY_HIGH); 2021 mParameters.setJpegQuality(jpegQuality); 2022 2023 // For the following settings, we need to check if the settings are 2024 // still supported by latest driver, if not, ignore the settings. 2025 2026 // Set color effect parameter. 2027 String colorEffect = mPreferences.getString( 2028 CameraSettings.KEY_COLOR_EFFECT, 2029 getString(R.string.pref_camera_coloreffect_default)); 2030 if (isSupported(colorEffect, mParameters.getSupportedColorEffects())) { 2031 mParameters.setColorEffect(colorEffect); 2032 } 2033 2034 // Set exposure compensation 2035 String exposure = mPreferences.getString( 2036 CameraSettings.KEY_EXPOSURE, 2037 getString(R.string.pref_exposure_default)); 2038 try { 2039 int value = Integer.parseInt(exposure); 2040 int max = mParameters.getMaxExposureCompensation(); 2041 int min = mParameters.getMinExposureCompensation(); 2042 if (value >= min && value <= max) { 2043 mParameters.setExposureCompensation(value); 2044 } else { 2045 Log.w(TAG, "invalid exposure range: " + exposure); 2046 } 2047 } catch (NumberFormatException e) { 2048 Log.w(TAG, "invalid exposure: " + exposure); 2049 } 2050 2051 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 2052 // Set flash mode. 2053 String flashMode = mPreferences.getString( 2054 CameraSettings.KEY_FLASH_MODE, 2055 getString(R.string.pref_camera_flashmode_default)); 2056 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 2057 if (isSupported(flashMode, supportedFlash)) { 2058 mParameters.setFlashMode(flashMode); 2059 } else { 2060 flashMode = mParameters.getFlashMode(); 2061 if (flashMode == null) { 2062 flashMode = getString( 2063 R.string.pref_camera_flashmode_no_flash); 2064 } 2065 } 2066 2067 // Set white balance parameter. 2068 String whiteBalance = mPreferences.getString( 2069 CameraSettings.KEY_WHITE_BALANCE, 2070 getString(R.string.pref_camera_whitebalance_default)); 2071 if (isSupported(whiteBalance, 2072 mParameters.getSupportedWhiteBalance())) { 2073 mParameters.setWhiteBalance(whiteBalance); 2074 } else { 2075 whiteBalance = mParameters.getWhiteBalance(); 2076 if (whiteBalance == null) { 2077 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 2078 } 2079 } 2080 2081 // Set focus mode. 2082 mFocusMode = mPreferences.getString( 2083 CameraSettings.KEY_FOCUS_MODE, 2084 getString(R.string.pref_camera_focusmode_default)); 2085 if (isSupported(mFocusMode, mParameters.getSupportedFocusModes())) { 2086 mParameters.setFocusMode(mFocusMode); 2087 } else { 2088 mFocusMode = mParameters.getFocusMode(); 2089 if (mFocusMode == null) { 2090 mFocusMode = Parameters.FOCUS_MODE_AUTO; 2091 } 2092 } 2093 } else { 2094 mFocusMode = mParameters.getFocusMode(); 2095 } 2096 } 2097 2098 // We separate the parameters into several subsets, so we can update only 2099 // the subsets actually need updating. The PREFERENCE set needs extra 2100 // locking because the preference can be changed from GLThread as well. 2101 private void setCameraParameters(int updateSet) { 2102 mParameters = mCameraDevice.getParameters(); 2103 2104 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 2105 updateCameraParametersInitialize(); 2106 } 2107 2108 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 2109 updateCameraParametersZoom(); 2110 } 2111 2112 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 2113 updateCameraParametersPreference(); 2114 } 2115 2116 mCameraDevice.setParameters(mParameters); 2117 } 2118 2119 // If the Camera is idle, update the parameters immediately, otherwise 2120 // accumulate them in mUpdateSet and update later. 2121 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 2122 mUpdateSet |= additionalUpdateSet; 2123 if (mCameraDevice == null) { 2124 // We will update all the parameters when we open the device, so 2125 // we don't need to do anything now. 2126 mUpdateSet = 0; 2127 return; 2128 } else if (isCameraIdle()) { 2129 setCameraParameters(mUpdateSet); 2130 updateSceneModeUI(); 2131 mUpdateSet = 0; 2132 } else { 2133 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 2134 mHandler.sendEmptyMessageDelayed( 2135 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 2136 } 2137 } 2138 } 2139 2140 private void gotoGallery() { 2141 MenuHelper.gotoCameraImageGallery(this); 2142 } 2143 2144 private void startReceivingLocationUpdates() { 2145 if (mLocationManager != null) { 2146 try { 2147 mLocationManager.requestLocationUpdates( 2148 LocationManager.NETWORK_PROVIDER, 2149 1000, 2150 0F, 2151 mLocationListeners[1]); 2152 } catch (SecurityException ex) { 2153 Log.i(TAG, "fail to request location update, ignore", ex); 2154 } catch (IllegalArgumentException ex) { 2155 Log.d(TAG, "provider does not exist " + ex.getMessage()); 2156 } 2157 try { 2158 mLocationManager.requestLocationUpdates( 2159 LocationManager.GPS_PROVIDER, 2160 1000, 2161 0F, 2162 mLocationListeners[0]); 2163 showGpsOnScreenIndicator(false); 2164 } catch (SecurityException ex) { 2165 Log.i(TAG, "fail to request location update, ignore", ex); 2166 } catch (IllegalArgumentException ex) { 2167 Log.d(TAG, "provider does not exist " + ex.getMessage()); 2168 } 2169 Log.d(TAG, "startReceivingLocationUpdates"); 2170 } 2171 } 2172 2173 private void stopReceivingLocationUpdates() { 2174 if (mLocationManager != null) { 2175 for (int i = 0; i < mLocationListeners.length; i++) { 2176 try { 2177 mLocationManager.removeUpdates(mLocationListeners[i]); 2178 } catch (Exception ex) { 2179 Log.i(TAG, "fail to remove location listners, ignore", ex); 2180 } 2181 } 2182 Log.d(TAG, "stopReceivingLocationUpdates"); 2183 } 2184 hideGpsOnScreenIndicator(); 2185 } 2186 2187 private Location getCurrentLocation() { 2188 // go in best to worst order 2189 for (int i = 0; i < mLocationListeners.length; i++) { 2190 Location l = mLocationListeners[i].current(); 2191 if (l != null) return l; 2192 } 2193 Log.d(TAG, "No location received yet."); 2194 return null; 2195 } 2196 2197 private boolean isCameraIdle() { 2198 return mCameraState == IDLE || mCameraState == FOCUS_SUCCESS || mCameraState == FOCUS_FAIL; 2199 } 2200 2201 private boolean isImageCaptureIntent() { 2202 String action = getIntent().getAction(); 2203 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 2204 } 2205 2206 private void setupCaptureParams() { 2207 Bundle myExtras = getIntent().getExtras(); 2208 if (myExtras != null) { 2209 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 2210 mCropValue = myExtras.getString("crop"); 2211 } 2212 } 2213 2214 private void showPostCaptureAlert() { 2215 if (mIsImageCaptureIntent) { 2216 if (mIndicatorWheel == null) { 2217 mShutterButton.setVisibility(View.INVISIBLE); 2218 } else { 2219 mShutterButton.setEnabled(false); 2220 } 2221 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2222 for (int id : pickIds) { 2223 View button = findViewById(id); 2224 ((View) button.getParent()).setVisibility(View.VISIBLE); 2225 } 2226 2227 // Remove the text of the cancel button 2228 View view = findViewById(R.id.btn_cancel); 2229 if (view instanceof Button) ((Button) view).setText(""); 2230 } 2231 } 2232 2233 private void hidePostCaptureAlert() { 2234 if (mIsImageCaptureIntent) { 2235 if (mIndicatorWheel == null) { 2236 mShutterButton.setVisibility(View.VISIBLE); 2237 } else { 2238 mShutterButton.setEnabled(true); 2239 } 2240 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2241 for (int id : pickIds) { 2242 View button = findViewById(id); 2243 ((View) button.getParent()).setVisibility(View.GONE); 2244 } 2245 enableCameraControls(true); 2246 2247 // Restore the text of the cancel button 2248 View view = findViewById(R.id.btn_cancel); 2249 if (view instanceof Button) { 2250 ((Button) view).setText(R.string.review_cancel); 2251 } 2252 } 2253 } 2254 2255 @Override 2256 public boolean onPrepareOptionsMenu(Menu menu) { 2257 super.onPrepareOptionsMenu(menu); 2258 // Only show the menu when camera is idle. 2259 for (int i = 0; i < menu.size(); i++) { 2260 menu.getItem(i).setVisible(isCameraIdle()); 2261 } 2262 2263 return true; 2264 } 2265 2266 @Override 2267 public boolean onCreateOptionsMenu(Menu menu) { 2268 super.onCreateOptionsMenu(menu); 2269 2270 if (mIsImageCaptureIntent) { 2271 // No options menu for attach mode. 2272 return false; 2273 } else { 2274 addBaseMenuItems(menu); 2275 } 2276 return true; 2277 } 2278 2279 private void addBaseMenuItems(Menu menu) { 2280 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_VIDEO, new Runnable() { 2281 public void run() { 2282 switchToOtherMode(ModePicker.MODE_VIDEO); 2283 } 2284 }); 2285 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_PANORAMA, new Runnable() { 2286 public void run() { 2287 switchToOtherMode(ModePicker.MODE_PANORAMA); 2288 } 2289 }); 2290 MenuItem gallery = menu.add(R.string.camera_gallery_photos_text) 2291 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2292 public boolean onMenuItemClick(MenuItem item) { 2293 gotoGallery(); 2294 return true; 2295 } 2296 }); 2297 gallery.setIcon(android.R.drawable.ic_menu_gallery); 2298 mGalleryItems.add(gallery); 2299 2300 if (mNumberOfCameras > 1) { 2301 menu.add(R.string.switch_camera_id) 2302 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2303 public boolean onMenuItemClick(MenuItem item) { 2304 CameraSettings.writePreferredCameraId(mPreferences, 2305 ((mCameraId == mFrontCameraId) 2306 ? mBackCameraId : mFrontCameraId)); 2307 onSharedPreferenceChanged(); 2308 return true; 2309 } 2310 }).setIcon(android.R.drawable.ic_menu_camera); 2311 } 2312 } 2313 2314 private boolean switchToOtherMode(int mode) { 2315 if (isFinishing() || !isCameraIdle()) return false; 2316 MenuHelper.gotoMode(mode, Camera.this); 2317 mHandler.removeMessages(FIRST_TIME_INIT); 2318 finish(); 2319 return true; 2320 } 2321 2322 public boolean onModeChanged(int mode) { 2323 if (mode != ModePicker.MODE_CAMERA) { 2324 return switchToOtherMode(mode); 2325 } else { 2326 return true; 2327 } 2328 } 2329 2330 private void onSharedPreferenceChanged() { 2331 // ignore the events after "onPause()" 2332 if (mPausing) return; 2333 2334 boolean recordLocation; 2335 2336 recordLocation = RecordLocationPreference.get( 2337 mPreferences, getContentResolver()); 2338 2339 if (mRecordLocation != recordLocation) { 2340 mRecordLocation = recordLocation; 2341 if (mRecordLocation) { 2342 startReceivingLocationUpdates(); 2343 } else { 2344 stopReceivingLocationUpdates(); 2345 } 2346 } 2347 int cameraId = CameraSettings.readPreferredCameraId(mPreferences); 2348 if (mCameraId != cameraId) { 2349 // Restart the activity to have a crossfade animation. 2350 // TODO: Use SurfaceTexture to implement a better and faster 2351 // animation. 2352 if (mIsImageCaptureIntent) { 2353 // If the intent is camera capture, stay in camera capture mode. 2354 MenuHelper.gotoCameraMode(this, getIntent()); 2355 } else { 2356 MenuHelper.gotoCameraMode(this); 2357 } 2358 2359 finish(); 2360 } else { 2361 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 2362 } 2363 } 2364 2365 @Override 2366 public void onUserInteraction() { 2367 super.onUserInteraction(); 2368 keepScreenOnAwhile(); 2369 } 2370 2371 private void resetScreenOn() { 2372 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2373 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2374 } 2375 2376 private void keepScreenOnAwhile() { 2377 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2378 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2379 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2380 } 2381 2382 private class MyHeadUpDisplayListener implements HeadUpDisplay.Listener { 2383 2384 public void onSharedPreferenceChanged() { 2385 Camera.this.onSharedPreferenceChanged(); 2386 } 2387 2388 public void onRestorePreferencesClicked() { 2389 Camera.this.onRestorePreferencesClicked(); 2390 } 2391 2392 public void onPopupWindowVisibilityChanged(int visibility) { 2393 } 2394 } 2395 2396 protected void onRestorePreferencesClicked() { 2397 if (mPausing) return; 2398 Runnable runnable = new Runnable() { 2399 public void run() { 2400 restorePreferences(); 2401 } 2402 }; 2403 MenuHelper.confirmAction(this, 2404 getString(R.string.confirm_restore_title), 2405 getString(R.string.confirm_restore_message), 2406 runnable); 2407 } 2408 2409 private void restorePreferences() { 2410 // Reset the zoom. Zoom value is not stored in preference. 2411 if (mParameters.isZoomSupported()) { 2412 mZoomValue = 0; 2413 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 2414 if (mZoomPicker != null) mZoomPicker.setZoomIndex(0); 2415 } 2416 2417 if (mHeadUpDisplay != null) { 2418 mHeadUpDisplay.restorePreferences(mParameters); 2419 } 2420 2421 if (mIndicatorWheel != null) { 2422 mIndicatorWheel.dismissSettingPopup(); 2423 CameraSettings.restorePreferences(Camera.this, mPreferences, 2424 mParameters); 2425 initializeIndicatorWheel(); 2426 onSharedPreferenceChanged(); 2427 } 2428 } 2429 2430 protected void onOverriddenPreferencesClicked() { 2431 if (mPausing) return; 2432 if (mNotSelectableToast == null) { 2433 String str = getResources().getString(R.string.not_selectable_in_scene_mode); 2434 mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT); 2435 } 2436 mNotSelectableToast.show(); 2437 } 2438 2439 private void showSharePopup() { 2440 Uri uri = mThumbnail.getUri(); 2441 if (mSharePopup == null || !uri.equals(mSharePopup.getUri())) { 2442 mSharePopup = new SharePopup(this, uri, mThumbnail.getBitmap(), "image/jpeg", 2443 mOrientationCompensation, mShareButton); 2444 } 2445 mSharePopup.showAtLocation(mThumbnailView, Gravity.NO_GRAVITY, 0, 0); 2446 } 2447 2448 private class MyIndicatorWheelListener implements IndicatorWheel.Listener { 2449 public void onSharedPreferenceChanged() { 2450 Camera.this.onSharedPreferenceChanged(); 2451 } 2452 2453 public void onRestorePreferencesClicked() { 2454 Camera.this.onRestorePreferencesClicked(); 2455 } 2456 2457 public void onOverriddenPreferencesClicked() { 2458 Camera.this.onOverriddenPreferencesClicked(); 2459 } 2460 } 2461 2462 private class MyCameraPickerListener implements CameraPicker.Listener { 2463 public void onSharedPreferenceChanged() { 2464 Camera.this.onSharedPreferenceChanged(); 2465 } 2466 } 2467} 2468