Camera.java revision cead50ba3ce2df3bd9fcf06c6f54ea0c6980f0d7
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, Switcher.OnSwitchListener { 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 boolean SWITCH_CAMERA = true; 149 private static final boolean SWITCH_VIDEO = false; 150 151 private static final String sTempCropFilename = "crop-temp"; 152 153 private android.hardware.Camera mCameraDevice; 154 private ContentProviderClient mMediaProviderClient; 155 private SurfaceHolder mSurfaceHolder = null; 156 private ShutterButton mShutterButton; 157 private ToneGenerator mFocusToneGenerator; 158 private GestureDetector mPopupGestureDetector; 159 private SwitcherSet mSwitcher; 160 private boolean mOpenCameraFail = false; 161 private boolean mCameraDisabled = false; 162 163 private View mPreviewFrame; // Preview frame area. 164 private View mPreviewBorder; 165 private FocusRectangle mFocusRectangle; 166 private List<Area> mFocusArea; // focus area in driver format 167 private static final int RESET_TOUCH_FOCUS_DELAY = 3000; 168 169 private GLRootView mGLRootView; 170 171 // A button showing the last captured picture thumbnail. Clicking on it will 172 // show the share popup window. 173 private RotateImageView mThumbnailButton; 174 // A popup window that contains a bigger thumbnail and a list of apps to share. 175 private SharePopup mSharePopup; 176 // The bitmap of the last captured picture thumbnail and the URI of the 177 // original picture. 178 private Thumbnail mThumbnail; 179 // A button sharing the last picture. 180 private RotateImageView mShareButton; 181 private RotateImageView mCameraSwitchIcon; 182 private RotateImageView mVideoSwitchIcon; 183 184 // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. 185 private String mCropValue; 186 private Uri mSaveUri; 187 188 // GPS on-screen indicator 189 private View mGpsNoSignalView; 190 private View mGpsHasSignalView; 191 192 // Front/Back camera picker for w1024dp layout 193 private CameraPicker mCameraPicker; 194 195 /** 196 * An unpublished intent flag requesting to return as soon as capturing 197 * is completed. 198 * 199 * TODO: consider publishing by moving into MediaStore. 200 */ 201 private final static String EXTRA_QUICK_CAPTURE = 202 "android.intent.extra.quickCapture"; 203 204 // The display rotation in degrees. This is only valid when mCameraState is 205 // not PREVIEW_STOPPED. 206 private int mDisplayRotation; 207 private boolean mPausing; 208 private boolean mFirstTimeInitialized; 209 private boolean mIsImageCaptureIntent; 210 private boolean mRecordLocation; 211 212 private static final int PREVIEW_STOPPED = 0; 213 private static final int IDLE = 1; // preview is active 214 private static final int FOCUSING = 2; 215 private static final int FOCUSING_SNAP_ON_FINISH = 3; 216 private static final int FOCUS_SUCCESS = 4; 217 private static final int FOCUS_FAIL = 5; 218 private static final int SNAPSHOT_IN_PROGRESS = 6; 219 private int mCameraState = PREVIEW_STOPPED; 220 221 private ContentResolver mContentResolver; 222 private boolean mDidRegister = false; 223 224 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 225 226 private LocationManager mLocationManager = null; 227 228 private final ShutterCallback mShutterCallback = new ShutterCallback(); 229 private final PostViewPictureCallback mPostViewPictureCallback = 230 new PostViewPictureCallback(); 231 private final RawPictureCallback mRawPictureCallback = 232 new RawPictureCallback(); 233 private final AutoFocusCallback mAutoFocusCallback = 234 new AutoFocusCallback(); 235 private final ZoomListener mZoomListener = new ZoomListener(); 236 private final CameraErrorCallback mErrorCallback = new CameraErrorCallback(); 237 238 private long mFocusStartTime; 239 private long mFocusCallbackTime; 240 private long mCaptureStartTime; 241 private long mShutterCallbackTime; 242 private long mPostViewPictureCallbackTime; 243 private long mRawPictureCallbackTime; 244 private long mJpegPictureCallbackTime; 245 private long mOnResumeTime; 246 private long mPicturesRemaining; 247 private byte[] mJpegImageData; 248 249 // These latency time are for the CameraLatency test. 250 public long mAutoFocusTime; 251 public long mShutterLag; 252 public long mShutterToPictureDisplayedTime; 253 public long mPictureDisplayedToJpegCallbackTime; 254 public long mJpegCallbackFinishTime; 255 256 // Focus mode. Options are pref_camera_focusmode_entryvalues. 257 private String mFocusMode; 258 private String mSceneMode; 259 private Toast mNotSelectableToast; 260 private Toast mNoShareToast; 261 262 private final Handler mHandler = new MainHandler(); 263 // w1024dp devices use indicator wheel. Other devices use head-up display. 264 private CameraHeadUpDisplay mHeadUpDisplay; 265 private IndicatorWheel mIndicatorWheel; 266 private PreferenceGroup mPreferenceGroup; 267 268 // multiple cameras support 269 private int mNumberOfCameras; 270 private int mCameraId; 271 private int mFrontCameraId; 272 private int mBackCameraId; 273 274 private boolean mQuickCapture; 275 276 /** 277 * This Handler is used to post message back onto the main thread of the 278 * application 279 */ 280 private class MainHandler extends Handler { 281 @Override 282 public void handleMessage(Message msg) { 283 switch (msg.what) { 284 case RESTART_PREVIEW: { 285 startPreview(); 286 if (mJpegPictureCallbackTime != 0) { 287 long now = System.currentTimeMillis(); 288 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 289 Log.v(TAG, "mJpegCallbackFinishTime = " 290 + mJpegCallbackFinishTime + "ms"); 291 mJpegPictureCallbackTime = 0; 292 } 293 break; 294 } 295 296 case CLEAR_SCREEN_DELAY: { 297 getWindow().clearFlags( 298 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 299 break; 300 } 301 302 case FIRST_TIME_INIT: { 303 initializeFirstTime(); 304 break; 305 } 306 307 case SET_CAMERA_PARAMETERS_WHEN_IDLE: { 308 setCameraParametersWhenIdle(0); 309 break; 310 } 311 312 case CHECK_DISPLAY_ROTATION: { 313 // Restart the preview if display rotation has changed. 314 // Sometimes this happens when the device is held upside 315 // down and camera app is opened. Rotation animation will 316 // take some time and the rotation value we have got may be 317 // wrong. Framework does not have a callback for this now. 318 if (Util.getDisplayRotation(Camera.this) != mDisplayRotation 319 && isCameraIdle()) { 320 startPreview(); 321 } 322 if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) { 323 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 324 } 325 break; 326 } 327 328 case RESET_TOUCH_FOCUS: { 329 cancelAutoFocus(); 330 break; 331 } 332 } 333 } 334 } 335 336 private void resetExposureCompensation() { 337 String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, 338 CameraSettings.EXPOSURE_DEFAULT_VALUE); 339 if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { 340 Editor editor = mPreferences.edit(); 341 editor.putString(CameraSettings.KEY_EXPOSURE, "0"); 342 editor.apply(); 343 if (mHeadUpDisplay != null) { 344 mHeadUpDisplay.reloadPreferences(); 345 } 346 if (mIndicatorWheel != null) { 347 mIndicatorWheel.reloadPreferences(); 348 } 349 } 350 } 351 352 private void keepMediaProviderInstance() { 353 // We want to keep a reference to MediaProvider in camera's lifecycle. 354 // TODO: Utilize mMediaProviderClient instance to replace 355 // ContentResolver calls. 356 if (mMediaProviderClient == null) { 357 mMediaProviderClient = getContentResolver() 358 .acquireContentProviderClient(MediaStore.AUTHORITY); 359 } 360 } 361 362 // Snapshots can only be taken after this is called. It should be called 363 // once only. We could have done these things in onCreate() but we want to 364 // make preview screen appear as soon as possible. 365 private void initializeFirstTime() { 366 if (mFirstTimeInitialized) return; 367 368 // Create orientation listenter. This should be done first because it 369 // takes some time to get first orientation. 370 mOrientationListener = new MyOrientationEventListener(Camera.this); 371 mOrientationListener.enable(); 372 373 // Initialize location sevice. 374 mLocationManager = (LocationManager) 375 getSystemService(Context.LOCATION_SERVICE); 376 mRecordLocation = RecordLocationPreference.get( 377 mPreferences, getContentResolver()); 378 initGpsOnScreenIndicator(); 379 if (mRecordLocation) startReceivingLocationUpdates(); 380 381 keepMediaProviderInstance(); 382 checkStorage(); 383 384 // Initialize last picture button. 385 mContentResolver = getContentResolver(); 386 if (!mIsImageCaptureIntent) { // no thumbnail in image capture intent 387 findViewById(R.id.camera_switch).setOnClickListener(this); 388 initThumbnailButton(); 389 if (mShareButton != null) mShareButton.setOnClickListener(this); 390 } 391 392 // Initialize shutter button. 393 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 394 mShutterButton.setOnShutterButtonListener(this); 395 mShutterButton.setVisibility(View.VISIBLE); 396 397 // Initialize focus UI. 398 mPreviewFrame = findViewById(R.id.camera_preview); 399 mPreviewFrame.setOnTouchListener(this); 400 mPreviewBorder = findViewById(R.id.preview_border); 401 // Set the length of focus rectangle according to preview frame size. 402 int len = Math.min(mPreviewFrame.getWidth(), mPreviewFrame.getHeight()) / 4; 403 ViewGroup.LayoutParams layout = mFocusRectangle.getLayoutParams(); 404 layout.width = len; 405 layout.height = len; 406 407 initializeScreenBrightness(); 408 installIntentFilter(); 409 initializeFocusTone(); 410 initializeZoom(); 411 // w1024dp devices use indicator wheel. Other devices use head-up display. 412 if (mIndicatorWheel == null) { 413 mHeadUpDisplay = new CameraHeadUpDisplay(this); 414 mHeadUpDisplay.setListener(new MyHeadUpDisplayListener()); 415 initializeHeadUpDisplay(); 416 } 417 mFirstTimeInitialized = true; 418 changeHeadUpDisplayState(); 419 addIdleHandler(); 420 } 421 422 private void addIdleHandler() { 423 MessageQueue queue = Looper.myQueue(); 424 queue.addIdleHandler(new MessageQueue.IdleHandler() { 425 public boolean queueIdle() { 426 Storage.ensureOSXCompatible(); 427 return false; 428 } 429 }); 430 } 431 432 private void initThumbnailButton() { 433 mThumbnailButton.setOnClickListener(this); 434 // Load the thumbnail from the disk. 435 mThumbnail = Thumbnail.loadFrom(new File(getFilesDir(), LAST_THUMB_FILENAME)); 436 updateThumbnailButton(); 437 } 438 439 private void updateThumbnailButton() { 440 // Update last image if URI is invalid and the storage is ready. 441 if ((mThumbnail == null || !Util.isUriValid(mThumbnail.getUri(), mContentResolver)) 442 && mPicturesRemaining >= 0) { 443 mThumbnail = Thumbnail.getLastImageThumbnail(mContentResolver); 444 } 445 if (mThumbnail != null) { 446 mThumbnailButton.setBitmap(mThumbnail.getBitmap()); 447 } else { 448 mThumbnailButton.setBitmap(null); 449 } 450 } 451 452 // If the activity is paused and resumed, this method will be called in 453 // onResume. 454 private void initializeSecondTime() { 455 // Start orientation listener as soon as possible because it takes 456 // some time to get first orientation. 457 mOrientationListener.enable(); 458 459 // Start location update if needed. 460 mRecordLocation = RecordLocationPreference.get( 461 mPreferences, getContentResolver()); 462 if (mRecordLocation) startReceivingLocationUpdates(); 463 464 installIntentFilter(); 465 initializeFocusTone(); 466 initializeZoom(); 467 changeHeadUpDisplayState(); 468 469 keepMediaProviderInstance(); 470 checkStorage(); 471 472 if (!mIsImageCaptureIntent) { 473 updateThumbnailButton(); 474 mSwitcher.setSwitch(SWITCH_CAMERA); 475 } 476 } 477 478 private void initializeZoom() { 479 if (!mParameters.isZoomSupported()) return; 480 481 mZoomMax = mParameters.getMaxZoom(); 482 mSmoothZoomSupported = mParameters.isSmoothZoomSupported(); 483 if (mZoomPicker != null) { 484 mZoomPicker.setZoomRatios(Util.convertZoomRatios(mParameters.getZoomRatios())); 485 mZoomPicker.setZoomIndex(mParameters.getZoom()); 486 mZoomPicker.setSmoothZoomSupported(mSmoothZoomSupported); 487 mZoomPicker.setOnZoomChangeListener( 488 new ZoomPicker.OnZoomChangedListener() { 489 // only for immediate zoom 490 @Override 491 public void onZoomValueChanged(int index) { 492 Camera.this.onZoomValueChanged(index); 493 } 494 495 // only for smooth zoom 496 @Override 497 public void onZoomStateChanged(int state) { 498 if (mPausing) return; 499 500 Log.v(TAG, "zoom picker state=" + state); 501 if (state == ZoomPicker.ZOOM_IN) { 502 Camera.this.onZoomValueChanged(mZoomMax); 503 } else if (state == ZoomPicker.ZOOM_OUT){ 504 Camera.this.onZoomValueChanged(0); 505 } else { 506 mTargetZoomValue = -1; 507 if (mZoomState == ZOOM_START) { 508 mZoomState = ZOOM_STOPPING; 509 mCameraDevice.stopSmoothZoom(); 510 } 511 } 512 } 513 }); 514 } 515 516 mCameraDevice.setZoomChangeListener(mZoomListener); 517 } 518 519 private void onZoomValueChanged(int index) { 520 // Not useful to change zoom value when the activity is paused. 521 if (mPausing) return; 522 523 if (mSmoothZoomSupported) { 524 if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { 525 mTargetZoomValue = index; 526 if (mZoomState == ZOOM_START) { 527 mZoomState = ZOOM_STOPPING; 528 mCameraDevice.stopSmoothZoom(); 529 } 530 } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { 531 mTargetZoomValue = index; 532 mCameraDevice.startSmoothZoom(index); 533 mZoomState = ZOOM_START; 534 } 535 } else { 536 mZoomValue = index; 537 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 538 } 539 } 540 541 private class PopupGestureListener 542 extends GestureDetector.SimpleOnGestureListener { 543 @Override 544 public boolean onDown(MotionEvent e) { 545 // Check if the popup window is visible. 546 View popup = mIndicatorWheel.getActiveSettingPopup(); 547 if (popup == null) return false; 548 549 550 // Let popup window, indicator wheel or preview frame handle the 551 // event by themselves. Dismiss the popup window if users touch on 552 // other areas. 553 if (!Util.pointInView(e.getX(), e.getY(), popup) 554 && !Util.pointInView(e.getX(), e.getY(), mIndicatorWheel) 555 && !Util.pointInView(e.getX(), e.getY(), mPreviewFrame)) { 556 mIndicatorWheel.dismissSettingPopup(); 557 // Let event fall through. 558 } 559 return false; 560 } 561 } 562 563 @Override 564 public boolean dispatchTouchEvent(MotionEvent m) { 565 // Check if the popup window should be dismissed first. 566 if (mPopupGestureDetector != null && mPopupGestureDetector.onTouchEvent(m)) { 567 return true; 568 } 569 570 return super.dispatchTouchEvent(m); 571 } 572 573 LocationListener [] mLocationListeners = new LocationListener[] { 574 new LocationListener(LocationManager.GPS_PROVIDER), 575 new LocationListener(LocationManager.NETWORK_PROVIDER) 576 }; 577 578 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 579 @Override 580 public void onReceive(Context context, Intent intent) { 581 String action = intent.getAction(); 582 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 583 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 584 || action.equals(Intent.ACTION_MEDIA_CHECKING)) { 585 checkStorage(); 586 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 587 checkStorage(); 588 if (!mIsImageCaptureIntent) { 589 updateThumbnailButton(); 590 } 591 } 592 } 593 }; 594 595 private void initializeCameraPicker() { 596 mCameraPicker = (CameraPicker) findViewById(R.id.camera_picker); 597 if (mCameraPicker != null) { 598 mCameraPicker.setImageResource(R.drawable.camera_toggle); 599 ListPreference pref = mPreferenceGroup.findPreference( 600 CameraSettings.KEY_CAMERA_ID); 601 if (pref != null) { 602 mCameraPicker.initialize(pref); 603 mCameraPicker.setListener(new MyCameraPickerListener()); 604 } 605 } 606 } 607 608 private void initializeZoomPicker() { 609 View zoomIncrement = findViewById(R.id.zoom_increment); 610 View zoomDecrement = findViewById(R.id.zoom_decrement); 611 TextView zoomRatio = (TextView) findViewById(R.id.zoom_ratio); 612 if (zoomIncrement != null && zoomDecrement != null && mParameters.isZoomSupported()) { 613 mZoomPicker = new ZoomPicker(this, zoomIncrement, zoomDecrement, zoomRatio); 614 } 615 } 616 617 private void initGpsOnScreenIndicator() { 618 mGpsNoSignalView = findViewById(R.id.onscreen_gps_indicator_no_signal); 619 mGpsHasSignalView = findViewById(R.id.onscreen_gps_indicator_on); 620 } 621 622 private void showGpsOnScreenIndicator(boolean hasSignal) { 623 if (hasSignal) { 624 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.INVISIBLE); 625 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.VISIBLE); 626 } else { 627 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.VISIBLE); 628 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.INVISIBLE); 629 } 630 } 631 632 private void hideGpsOnScreenIndicator() { 633 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.INVISIBLE); 634 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.INVISIBLE); 635 } 636 637 private class LocationListener 638 implements android.location.LocationListener { 639 Location mLastLocation; 640 boolean mValid = false; 641 String mProvider; 642 643 public LocationListener(String provider) { 644 mProvider = provider; 645 mLastLocation = new Location(mProvider); 646 } 647 648 public void onLocationChanged(Location newLocation) { 649 if (newLocation.getLatitude() == 0.0 650 && newLocation.getLongitude() == 0.0) { 651 // Hack to filter out 0.0,0.0 locations 652 return; 653 } 654 // If GPS is available before start camera, we won't get status 655 // update so update GPS indicator when we receive data. 656 if (mRecordLocation 657 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 658 showGpsOnScreenIndicator(true); 659 } 660 if (!mValid) { 661 Log.d(TAG, "Got first location."); 662 } 663 mLastLocation.set(newLocation); 664 mValid = true; 665 } 666 667 public void onProviderEnabled(String provider) { 668 } 669 670 public void onProviderDisabled(String provider) { 671 mValid = false; 672 } 673 674 public void onStatusChanged( 675 String provider, int status, Bundle extras) { 676 switch(status) { 677 case LocationProvider.OUT_OF_SERVICE: 678 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 679 mValid = false; 680 if (mRecordLocation && 681 LocationManager.GPS_PROVIDER.equals(provider)) { 682 showGpsOnScreenIndicator(false); 683 } 684 break; 685 } 686 } 687 } 688 689 public Location current() { 690 return mValid ? mLastLocation : null; 691 } 692 } 693 694 private final class ShutterCallback 695 implements android.hardware.Camera.ShutterCallback { 696 public void onShutter() { 697 mShutterCallbackTime = System.currentTimeMillis(); 698 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 699 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 700 updateFocusUI(); 701 } 702 } 703 704 private final class PostViewPictureCallback implements PictureCallback { 705 public void onPictureTaken( 706 byte [] data, android.hardware.Camera camera) { 707 mPostViewPictureCallbackTime = System.currentTimeMillis(); 708 Log.v(TAG, "mShutterToPostViewCallbackTime = " 709 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 710 + "ms"); 711 } 712 } 713 714 private final class RawPictureCallback implements PictureCallback { 715 public void onPictureTaken( 716 byte [] rawData, android.hardware.Camera camera) { 717 mRawPictureCallbackTime = System.currentTimeMillis(); 718 Log.v(TAG, "mShutterToRawCallbackTime = " 719 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 720 } 721 } 722 723 private final class JpegPictureCallback implements PictureCallback { 724 Location mLocation; 725 726 public JpegPictureCallback(Location loc) { 727 mLocation = loc; 728 } 729 730 public void onPictureTaken( 731 final byte [] jpegData, final android.hardware.Camera camera) { 732 if (mPausing) { 733 return; 734 } 735 736 mJpegPictureCallbackTime = System.currentTimeMillis(); 737 // If postview callback has arrived, the captured image is displayed 738 // in postview callback. If not, the captured image is displayed in 739 // raw picture callback. 740 if (mPostViewPictureCallbackTime != 0) { 741 mShutterToPictureDisplayedTime = 742 mPostViewPictureCallbackTime - mShutterCallbackTime; 743 mPictureDisplayedToJpegCallbackTime = 744 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 745 } else { 746 mShutterToPictureDisplayedTime = 747 mRawPictureCallbackTime - mShutterCallbackTime; 748 mPictureDisplayedToJpegCallbackTime = 749 mJpegPictureCallbackTime - mRawPictureCallbackTime; 750 } 751 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 752 + mPictureDisplayedToJpegCallbackTime + "ms"); 753 754 if (!mIsImageCaptureIntent) { 755 enableCameraControls(true); 756 757 // We want to show the taken picture for a while, so we wait 758 // for at least 1.2 second before restarting the preview. 759 long delay = 1200 - mPictureDisplayedToJpegCallbackTime; 760 if (delay < 0) { 761 startPreview(); 762 } else { 763 mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay); 764 } 765 } 766 storeImage(jpegData, camera, mLocation); 767 768 // Check this in advance of each shot so we don't add to shutter 769 // latency. It's true that someone else could write to the SD card in 770 // the mean time and fill it, but that could have happened between the 771 // shutter press and saving the JPEG too. 772 checkStorage(); 773 774 if (!mHandler.hasMessages(RESTART_PREVIEW)) { 775 long now = System.currentTimeMillis(); 776 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 777 Log.v(TAG, "mJpegCallbackFinishTime = " 778 + mJpegCallbackFinishTime + "ms"); 779 mJpegPictureCallbackTime = 0; 780 } 781 } 782 } 783 784 private final class AutoFocusCallback 785 implements android.hardware.Camera.AutoFocusCallback { 786 public void onAutoFocus( 787 boolean focused, android.hardware.Camera camera) { 788 mFocusCallbackTime = System.currentTimeMillis(); 789 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 790 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 791 if (mCameraState == FOCUSING_SNAP_ON_FINISH) { 792 // Take the picture no matter focus succeeds or fails. No need 793 // to play the AF sound if we're about to play the shutter 794 // sound. 795 if (focused) { 796 mCameraState = FOCUS_SUCCESS; 797 } else { 798 mCameraState = FOCUS_FAIL; 799 } 800 updateFocusUI(); 801 capture(); 802 } else if (mCameraState == FOCUSING) { 803 // This happens when (1) user is half-pressing the focus key or 804 // (2) touch focus is triggered. Play the focus tone. Do not 805 // take the picture now. 806 if (focused) { 807 mCameraState = FOCUS_SUCCESS; 808 if (mFocusToneGenerator != null) { 809 mFocusToneGenerator.startTone(ToneGenerator.TONE_PROP_BEEP2); 810 } 811 } else { 812 mCameraState = FOCUS_FAIL; 813 } 814 updateFocusUI(); 815 enableCameraControls(true); 816 // If this is triggered by touch focus, cancel focus after a 817 // while. 818 if (mFocusArea != null) { 819 mHandler.sendEmptyMessageDelayed(RESET_TOUCH_FOCUS, RESET_TOUCH_FOCUS_DELAY); 820 } 821 } else if (mCameraState == IDLE) { 822 // User has released the focus key before focus completes. 823 // Do nothing. 824 } 825 826 } 827 } 828 829 private final class ZoomListener 830 implements android.hardware.Camera.OnZoomChangeListener { 831 @Override 832 public void onZoomChange( 833 int value, boolean stopped, android.hardware.Camera camera) { 834 Log.v(TAG, "Zoom changed: value=" + value + ". stopped="+ stopped); 835 mZoomValue = value; 836 837 // Update the UI when we get zoom value. 838 if (mZoomPicker != null) mZoomPicker.setZoomIndex(value); 839 840 // Keep mParameters up to date. We do not getParameter again in 841 // takePicture. If we do not do this, wrong zoom value will be set. 842 mParameters.setZoom(value); 843 844 if (stopped && mZoomState != ZOOM_STOPPED) { 845 if (mTargetZoomValue != -1 && value != mTargetZoomValue) { 846 mCameraDevice.startSmoothZoom(mTargetZoomValue); 847 mZoomState = ZOOM_START; 848 } else { 849 mZoomState = ZOOM_STOPPED; 850 } 851 } 852 } 853 } 854 855 public void storeImage(final byte[] data, 856 android.hardware.Camera camera, Location loc) { 857 if (!mIsImageCaptureIntent) { 858 long dateTaken = System.currentTimeMillis(); 859 String title = createName(dateTaken); 860 int orientation = Exif.getOrientation(data); 861 Uri uri = Storage.addImage(mContentResolver, title, dateTaken, 862 loc, orientation, data); 863 if (uri != null) { 864 // Create a thumbnail whose size is smaller than half of the surface view. 865 int ratio = (int) Math.ceil((double) mParameters.getPictureSize().width 866 / (mPreviewFrame.getWidth() / 2)); 867 int inSampleSize = Util.nextPowerOf2(ratio); 868 mThumbnail = Thumbnail.createThumbnail(data, orientation, inSampleSize, uri); 869 if (mThumbnail != null) { 870 mThumbnailButton.setBitmap(mThumbnail.getBitmap()); 871 } 872 sendBroadcast(new Intent("com.android.camera.NEW_PICTURE", uri)); 873 } 874 } else { 875 mJpegImageData = data; 876 if (!mQuickCapture) { 877 showPostCaptureAlert(); 878 } else { 879 doAttach(); 880 } 881 } 882 } 883 884 private void capture() { 885 // If we are already in the middle of taking a snapshot then ignore. 886 if (mPausing || mCameraState == SNAPSHOT_IN_PROGRESS || mCameraDevice == null) { 887 return; 888 } 889 mCaptureStartTime = System.currentTimeMillis(); 890 mPostViewPictureCallbackTime = 0; 891 enableCameraControls(false); 892 mJpegImageData = null; 893 894 // See android.hardware.Camera.Parameters.setRotation for 895 // documentation. 896 int rotation = 0; 897 if (mOrientation != OrientationEventListener.ORIENTATION_UNKNOWN) { 898 CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; 899 if (info.facing == CameraInfo.CAMERA_FACING_FRONT) { 900 rotation = (info.orientation - mOrientation + 360) % 360; 901 } else { // back-facing camera 902 rotation = (info.orientation + mOrientation) % 360; 903 } 904 } 905 mParameters.setRotation(rotation); 906 907 // Clear previous GPS location from the parameters. 908 mParameters.removeGpsData(); 909 910 // We always encode GpsTimeStamp 911 mParameters.setGpsTimestamp(System.currentTimeMillis() / 1000); 912 913 // Set GPS location. 914 Location loc = mRecordLocation ? getCurrentLocation() : null; 915 if (loc != null) { 916 double lat = loc.getLatitude(); 917 double lon = loc.getLongitude(); 918 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 919 920 if (hasLatLon) { 921 Log.d(TAG, "Set gps location"); 922 mParameters.setGpsLatitude(lat); 923 mParameters.setGpsLongitude(lon); 924 mParameters.setGpsProcessingMethod(loc.getProvider().toUpperCase()); 925 if (loc.hasAltitude()) { 926 mParameters.setGpsAltitude(loc.getAltitude()); 927 } else { 928 // for NETWORK_PROVIDER location provider, we may have 929 // no altitude information, but the driver needs it, so 930 // we fake one. 931 mParameters.setGpsAltitude(0); 932 } 933 if (loc.getTime() != 0) { 934 // Location.getTime() is UTC in milliseconds. 935 // gps-timestamp is UTC in seconds. 936 long utcTimeSeconds = loc.getTime() / 1000; 937 mParameters.setGpsTimestamp(utcTimeSeconds); 938 } 939 } else { 940 loc = null; 941 } 942 } 943 944 mCameraDevice.setParameters(mParameters); 945 946 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 947 mPostViewPictureCallback, new JpegPictureCallback(loc)); 948 mCameraState = SNAPSHOT_IN_PROGRESS; 949 mHandler.removeMessages(RESET_TOUCH_FOCUS); 950 } 951 952 private boolean saveDataToFile(String filePath, byte[] data) { 953 FileOutputStream f = null; 954 try { 955 f = new FileOutputStream(filePath); 956 f.write(data); 957 } catch (IOException e) { 958 return false; 959 } finally { 960 Util.closeSilently(f); 961 } 962 return true; 963 } 964 965 private String createName(long dateTaken) { 966 Date date = new Date(dateTaken); 967 SimpleDateFormat dateFormat = new SimpleDateFormat( 968 getString(R.string.image_file_name_format)); 969 970 return dateFormat.format(date); 971 } 972 973 @Override 974 public void onCreate(Bundle icicle) { 975 super.onCreate(icicle); 976 977 mIsImageCaptureIntent = isImageCaptureIntent(); 978 if (mIsImageCaptureIntent) { 979 setContentView(R.layout.camera_attach); 980 } else { 981 setContentView(R.layout.camera); 982 } 983 mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); 984 mThumbnailButton = (RotateImageView) findViewById(R.id.review_thumbnail); 985 mShareButton = (RotateImageView) findViewById(R.id.btn_share); 986 mCameraSwitchIcon = (RotateImageView) findViewById(R.id.camera_switch_icon); 987 mVideoSwitchIcon = (RotateImageView) findViewById(R.id.video_switch_icon); 988 989 mPreferences = new ComboPreferences(this); 990 CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal()); 991 992 mCameraId = CameraSettings.readPreferredCameraId(mPreferences); 993 994 // Testing purpose. Launch a specific camera through the intent extras. 995 int intentCameraId = Util.getCameraFacingIntentExtras(this); 996 if (intentCameraId != -1) { 997 mCameraId = intentCameraId; 998 } 999 1000 mPreferences.setLocalId(this, mCameraId); 1001 CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); 1002 1003 mNumberOfCameras = CameraHolder.instance().getNumberOfCameras(); 1004 mQuickCapture = getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false); 1005 1006 // we need to reset exposure for the preview 1007 resetExposureCompensation(); 1008 1009 /* 1010 * To reduce startup time, we start the preview in another thread. 1011 * We make sure the preview is started at the end of onCreate. 1012 */ 1013 Thread startPreviewThread = new Thread(new Runnable() { 1014 public void run() { 1015 try { 1016 mCameraDevice = Util.openCamera(Camera.this, mCameraId); 1017 mInitialParams = mCameraDevice.getParameters(); 1018 startPreview(); 1019 } catch (CameraHardwareException e) { 1020 mOpenCameraFail = true; 1021 } catch (CameraDisabledException e) { 1022 mCameraDisabled = true; 1023 } 1024 } 1025 }); 1026 startPreviewThread.start(); 1027 1028 // don't set mSurfaceHolder here. We have it set ONLY within 1029 // surfaceChanged / surfaceDestroyed, other parts of the code 1030 // assume that when it is set, the surface is also set. 1031 SurfaceView preview = (SurfaceView) findViewById(R.id.camera_preview); 1032 SurfaceHolder holder = preview.getHolder(); 1033 holder.addCallback(this); 1034 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 1035 1036 if (mIsImageCaptureIntent) { 1037 setupCaptureParams(); 1038 1039 findViewById(R.id.review_control).setVisibility(View.VISIBLE); 1040 findViewById(R.id.btn_cancel).setOnClickListener(this); 1041 findViewById(R.id.btn_retake).setOnClickListener(this); 1042 findViewById(R.id.btn_done).setOnClickListener(this); 1043 } else { 1044 mSwitcher = (SwitcherSet) findViewById(R.id.camera_switch); 1045 mSwitcher.setVisibility(View.VISIBLE); 1046 mSwitcher.setOnSwitchListener(this); 1047 mSwitcher.setSwitch(SWITCH_CAMERA); 1048 } 1049 1050 // Make sure preview is started. 1051 try { 1052 startPreviewThread.join(); 1053 if (mOpenCameraFail) { 1054 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1055 return; 1056 } else if (mCameraDisabled) { 1057 Util.showErrorAndFinish(this, R.string.camera_disabled); 1058 return; 1059 } 1060 } catch (InterruptedException ex) { 1061 // ignore 1062 } 1063 1064 mBackCameraId = CameraHolder.instance().getBackCameraId(); 1065 mFrontCameraId = CameraHolder.instance().getFrontCameraId(); 1066 1067 // Do this after starting preview because it depends on camera 1068 // parameters. 1069 initializeIndicatorWheel(); 1070 initializeCameraPicker(); 1071 initializeZoomPicker(); 1072 } 1073 1074 private void changeHeadUpDisplayState() { 1075 if (mHeadUpDisplay == null) return; 1076 // If the camera resumes behind the lock screen, the orientation 1077 // will be portrait. That causes OOM when we try to allocation GPU 1078 // memory for the GLSurfaceView again when the orientation changes. So, 1079 // we delayed initialization of HeadUpDisplay until the orientation 1080 // becomes landscape. 1081 Configuration config = getResources().getConfiguration(); 1082 if (config.orientation == Configuration.ORIENTATION_LANDSCAPE 1083 && !mPausing && mFirstTimeInitialized) { 1084 if (mGLRootView == null) attachHeadUpDisplay(); 1085 } else if (mGLRootView != null) { 1086 detachHeadUpDisplay(); 1087 } 1088 } 1089 1090 private void overrideCameraSettings(final String flashMode, 1091 final String whiteBalance, final String focusMode) { 1092 if (mHeadUpDisplay != null) { 1093 mHeadUpDisplay.overrideSettings( 1094 CameraSettings.KEY_FLASH_MODE, flashMode, 1095 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 1096 CameraSettings.KEY_FOCUS_MODE, focusMode); 1097 } 1098 if (mIndicatorWheel != null) { 1099 mIndicatorWheel.overrideSettings( 1100 CameraSettings.KEY_FLASH_MODE, flashMode, 1101 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 1102 CameraSettings.KEY_FOCUS_MODE, focusMode); 1103 } 1104 } 1105 1106 private void updateSceneModeUI() { 1107 // If scene mode is set, we cannot set flash mode, white balance, and 1108 // focus mode, instead, we read it from driver 1109 if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1110 overrideCameraSettings(mParameters.getFlashMode(), 1111 mParameters.getWhiteBalance(), mParameters.getFocusMode()); 1112 } else { 1113 overrideCameraSettings(null, null, null); 1114 } 1115 } 1116 1117 private void loadCameraPreferences() { 1118 CameraSettings settings = new CameraSettings(this, mInitialParams, 1119 mCameraId, CameraHolder.instance().getCameraInfo()); 1120 mPreferenceGroup = settings.getPreferenceGroup(R.xml.camera_preferences); 1121 } 1122 1123 private void initializeIndicatorWheel() { 1124 mIndicatorWheel = (IndicatorWheel) findViewById(R.id.indicator_wheel); 1125 if (mIndicatorWheel == null) return; 1126 loadCameraPreferences(); 1127 1128 final String[] SETTING_KEYS = { 1129 CameraSettings.KEY_FLASH_MODE}; 1130 final String[] OTHER_SETTING_KEYS = { 1131 CameraSettings.KEY_WHITE_BALANCE, 1132 CameraSettings.KEY_COLOR_EFFECT, 1133 CameraSettings.KEY_SCENE_MODE, 1134 CameraSettings.KEY_RECORD_LOCATION, 1135 CameraSettings.KEY_FOCUS_MODE, 1136 CameraSettings.KEY_EXPOSURE, 1137 CameraSettings.KEY_PICTURE_SIZE}; 1138 mIndicatorWheel.initialize(this, mPreferenceGroup, SETTING_KEYS, 1139 OTHER_SETTING_KEYS); 1140 mIndicatorWheel.setListener(new MyIndicatorWheelListener()); 1141 mPopupGestureDetector = new GestureDetector(this, 1142 new PopupGestureListener()); 1143 updateSceneModeUI(); 1144 } 1145 1146 private void initializeHeadUpDisplay() { 1147 if (mHeadUpDisplay == null) return; 1148 loadCameraPreferences(); 1149 1150 float[] zoomRatios = null; 1151 if(mParameters.isZoomSupported()) { 1152 zoomRatios = Util.convertZoomRatios(mParameters.getZoomRatios()); 1153 } 1154 mHeadUpDisplay.initialize(this, mPreferenceGroup, 1155 zoomRatios, mOrientationCompensation); 1156 if (mParameters.isZoomSupported()) { 1157 mHeadUpDisplay.setZoomListener(new ZoomControllerListener() { 1158 public void onZoomChanged( 1159 int index, float ratio, boolean isMoving) { 1160 onZoomValueChanged(index); 1161 } 1162 }); 1163 } 1164 updateSceneModeUI(); 1165 } 1166 1167 private void attachHeadUpDisplay() { 1168 mHeadUpDisplay.setOrientation(mOrientationCompensation); 1169 if (mParameters.isZoomSupported()) { 1170 mHeadUpDisplay.setZoomIndex(mZoomValue); 1171 } 1172 ViewGroup frame = (ViewGroup) findViewById(R.id.frame); 1173 mGLRootView = new GLRootView(this); 1174 mGLRootView.setContentPane(mHeadUpDisplay); 1175 frame.addView(mGLRootView); 1176 } 1177 1178 private void detachHeadUpDisplay() { 1179 mHeadUpDisplay.collapse(); 1180 ((ViewGroup) mGLRootView.getParent()).removeView(mGLRootView); 1181 mGLRootView = null; 1182 } 1183 1184 private boolean collapseCameraControls() { 1185 if (mHeadUpDisplay != null && mHeadUpDisplay.collapse()) { 1186 return true; 1187 } 1188 if (mIndicatorWheel != null && mIndicatorWheel.dismissSettingPopup()) { 1189 return true; 1190 } 1191 return false; 1192 } 1193 1194 private void enableCameraControls(boolean enable) { 1195 if (mHeadUpDisplay != null) mHeadUpDisplay.setEnabled(enable); 1196 if (mIndicatorWheel != null) mIndicatorWheel.setEnabled(enable); 1197 if (mCameraPicker != null) mCameraPicker.setEnabled(enable); 1198 if (mZoomPicker != null) mZoomPicker.setEnabled(enable); 1199 if (mSwitcher != null) mSwitcher.setEnabled(enable); 1200 } 1201 1202 public static int roundOrientation(int orientation) { 1203 return ((orientation + 45) / 90 * 90) % 360; 1204 } 1205 1206 private class MyOrientationEventListener 1207 extends OrientationEventListener { 1208 public MyOrientationEventListener(Context context) { 1209 super(context); 1210 } 1211 1212 @Override 1213 public void onOrientationChanged(int orientation) { 1214 // We keep the last known orientation. So if the user first orient 1215 // the camera then point the camera to floor or sky, we still have 1216 // the correct orientation. 1217 if (orientation == ORIENTATION_UNKNOWN) return; 1218 mOrientation = roundOrientation(orientation); 1219 // When the screen is unlocked, display rotation may change. Always 1220 // calculate the up-to-date orientationCompensation. 1221 int orientationCompensation = mOrientation 1222 + Util.getDisplayRotation(Camera.this); 1223 if (mOrientationCompensation != orientationCompensation) { 1224 mOrientationCompensation = orientationCompensation; 1225 if (!mIsImageCaptureIntent) { 1226 setOrientationIndicator(mOrientationCompensation); 1227 } 1228 } 1229 } 1230 } 1231 1232 private void setOrientationIndicator(int degree) { 1233 if (mHeadUpDisplay != null) mHeadUpDisplay.setOrientation(mOrientationCompensation); 1234 if (mThumbnailButton != null) mThumbnailButton.setDegree(degree); 1235 if (mShareButton != null) mShareButton.setDegree(degree); 1236 if (mCameraSwitchIcon != null) mCameraSwitchIcon.setDegree(degree); 1237 if (mVideoSwitchIcon != null) mVideoSwitchIcon.setDegree(degree); 1238 if (mSharePopup != null) mSharePopup.setOrientation(degree); 1239 if (mIndicatorWheel != null) mIndicatorWheel.setDegree(degree); 1240 } 1241 1242 @Override 1243 public void onStop() { 1244 super.onStop(); 1245 if (mMediaProviderClient != null) { 1246 mMediaProviderClient.release(); 1247 mMediaProviderClient = null; 1248 } 1249 } 1250 1251 private void checkStorage() { 1252 mPicturesRemaining = Storage.getAvailableSpace(); 1253 if (mPicturesRemaining > 0) { 1254 mPicturesRemaining /= 1500000; 1255 } 1256 updateStorageHint(); 1257 } 1258 1259 public void onClick(View v) { 1260 switch (v.getId()) { 1261 case R.id.btn_retake: 1262 hidePostCaptureAlert(); 1263 startPreview(); 1264 break; 1265 case R.id.review_thumbnail: 1266 if (isCameraIdle() && mThumbnail != null) { 1267 Util.viewUri(mThumbnail.getUri(), this); 1268 } 1269 break; 1270 case R.id.btn_done: 1271 doAttach(); 1272 break; 1273 case R.id.btn_cancel: 1274 doCancel(); 1275 break; 1276 case R.id.btn_gallery: 1277 gotoGallery(); 1278 break; 1279 case R.id.btn_share: 1280 if (isCameraIdle() && mThumbnail != null) { 1281 createSharePopup(); 1282 } 1283 break; 1284 } 1285 } 1286 1287 private void doAttach() { 1288 if (mPausing) { 1289 return; 1290 } 1291 1292 byte[] data = mJpegImageData; 1293 1294 if (mCropValue == null) { 1295 // First handle the no crop case -- just return the value. If the 1296 // caller specifies a "save uri" then write the data to it's 1297 // stream. Otherwise, pass back a scaled down version of the bitmap 1298 // directly in the extras. 1299 if (mSaveUri != null) { 1300 OutputStream outputStream = null; 1301 try { 1302 outputStream = mContentResolver.openOutputStream(mSaveUri); 1303 outputStream.write(data); 1304 outputStream.close(); 1305 1306 setResultEx(RESULT_OK); 1307 finish(); 1308 } catch (IOException ex) { 1309 // ignore exception 1310 } finally { 1311 Util.closeSilently(outputStream); 1312 } 1313 } else { 1314 int orientation = Exif.getOrientation(data); 1315 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1316 bitmap = Util.rotate(bitmap, orientation); 1317 setResultEx(RESULT_OK, 1318 new Intent("inline-data").putExtra("data", bitmap)); 1319 finish(); 1320 } 1321 } else { 1322 // Save the image to a temp file and invoke the cropper 1323 Uri tempUri = null; 1324 FileOutputStream tempStream = null; 1325 try { 1326 File path = getFileStreamPath(sTempCropFilename); 1327 path.delete(); 1328 tempStream = openFileOutput(sTempCropFilename, 0); 1329 tempStream.write(data); 1330 tempStream.close(); 1331 tempUri = Uri.fromFile(path); 1332 } catch (FileNotFoundException ex) { 1333 setResultEx(Activity.RESULT_CANCELED); 1334 finish(); 1335 return; 1336 } catch (IOException ex) { 1337 setResultEx(Activity.RESULT_CANCELED); 1338 finish(); 1339 return; 1340 } finally { 1341 Util.closeSilently(tempStream); 1342 } 1343 1344 Bundle newExtras = new Bundle(); 1345 if (mCropValue.equals("circle")) { 1346 newExtras.putString("circleCrop", "true"); 1347 } 1348 if (mSaveUri != null) { 1349 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1350 } else { 1351 newExtras.putBoolean("return-data", true); 1352 } 1353 1354 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1355 1356 cropIntent.setData(tempUri); 1357 cropIntent.putExtras(newExtras); 1358 1359 startActivityForResult(cropIntent, CROP_MSG); 1360 } 1361 } 1362 1363 private void doCancel() { 1364 setResultEx(RESULT_CANCELED, new Intent()); 1365 finish(); 1366 } 1367 1368 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1369 if (mPausing) { 1370 return; 1371 } 1372 switch (button.getId()) { 1373 case R.id.shutter_button: 1374 doFocus(pressed); 1375 break; 1376 } 1377 } 1378 1379 public void onShutterButtonClick(ShutterButton button) { 1380 if (mPausing) { 1381 return; 1382 } 1383 switch (button.getId()) { 1384 case R.id.shutter_button: 1385 doSnap(); 1386 break; 1387 } 1388 } 1389 1390 private OnScreenHint mStorageHint; 1391 1392 private void updateStorageHint() { 1393 String noStorageText = null; 1394 1395 if (mPicturesRemaining == Storage.UNAVAILABLE) { 1396 noStorageText = getString(R.string.no_storage); 1397 } else if (mPicturesRemaining == Storage.PREPARING) { 1398 noStorageText = getString(R.string.preparing_sd); 1399 } else if (mPicturesRemaining == Storage.UNKNOWN_SIZE) { 1400 noStorageText = getString(R.string.access_sd_fail); 1401 } else if (mPicturesRemaining < 1L) { 1402 noStorageText = getString(R.string.not_enough_space); 1403 } 1404 1405 if (noStorageText != null) { 1406 if (mStorageHint == null) { 1407 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1408 } else { 1409 mStorageHint.setText(noStorageText); 1410 } 1411 mStorageHint.show(); 1412 } else if (mStorageHint != null) { 1413 mStorageHint.cancel(); 1414 mStorageHint = null; 1415 } 1416 } 1417 1418 private void installIntentFilter() { 1419 // install an intent filter to receive SD card related events. 1420 IntentFilter intentFilter = 1421 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1422 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1423 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1424 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1425 intentFilter.addDataScheme("file"); 1426 registerReceiver(mReceiver, intentFilter); 1427 mDidRegister = true; 1428 } 1429 1430 private void initializeFocusTone() { 1431 // Initialize focus tone generator. 1432 try { 1433 mFocusToneGenerator = new ToneGenerator( 1434 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1435 } catch (Throwable ex) { 1436 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1437 mFocusToneGenerator = null; 1438 } 1439 } 1440 1441 private void initializeScreenBrightness() { 1442 Window win = getWindow(); 1443 // Overright the brightness settings if it is automatic 1444 int mode = Settings.System.getInt( 1445 getContentResolver(), 1446 Settings.System.SCREEN_BRIGHTNESS_MODE, 1447 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); 1448 if (mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC) { 1449 WindowManager.LayoutParams winParams = win.getAttributes(); 1450 winParams.screenBrightness = DEFAULT_CAMERA_BRIGHTNESS; 1451 win.setAttributes(winParams); 1452 } 1453 } 1454 1455 @Override 1456 protected void onResume() { 1457 super.onResume(); 1458 mPausing = false; 1459 if (mOpenCameraFail || mCameraDisabled) return; 1460 1461 mJpegPictureCallbackTime = 0; 1462 mZoomValue = 0; 1463 1464 // Start the preview if it is not started. 1465 if (mCameraState == PREVIEW_STOPPED) { 1466 try { 1467 mCameraDevice = Util.openCamera(this, mCameraId); 1468 mInitialParams = mCameraDevice.getParameters(); 1469 resetExposureCompensation(); 1470 startPreview(); 1471 } catch(CameraHardwareException e) { 1472 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1473 return; 1474 } catch(CameraDisabledException e) { 1475 Util.showErrorAndFinish(this, R.string.camera_disabled); 1476 return; 1477 } 1478 } 1479 1480 if (mSurfaceHolder != null) { 1481 // If first time initialization is not finished, put it in the 1482 // message queue. 1483 if (!mFirstTimeInitialized) { 1484 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1485 } else { 1486 initializeSecondTime(); 1487 } 1488 } 1489 keepScreenOnAwhile(); 1490 1491 if (mCameraState == IDLE) { 1492 mOnResumeTime = SystemClock.uptimeMillis(); 1493 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 1494 } 1495 } 1496 1497 @Override 1498 public void onConfigurationChanged(Configuration config) { 1499 super.onConfigurationChanged(config); 1500 changeHeadUpDisplayState(); 1501 } 1502 1503 @Override 1504 protected void onPause() { 1505 mPausing = true; 1506 stopPreview(); 1507 // Close the camera now because other activities may need to use it. 1508 closeCamera(); 1509 resetScreenOn(); 1510 collapseCameraControls(); 1511 changeHeadUpDisplayState(); 1512 1513 if (mFirstTimeInitialized) { 1514 mOrientationListener.disable(); 1515 if (!mIsImageCaptureIntent) { 1516 if (mThumbnail != null) { 1517 mThumbnail.saveTo(new File(getFilesDir(), LAST_THUMB_FILENAME)); 1518 } 1519 } 1520 hidePostCaptureAlert(); 1521 } 1522 1523 dismissSharePopup(); 1524 1525 if (mDidRegister) { 1526 unregisterReceiver(mReceiver); 1527 mDidRegister = false; 1528 } 1529 stopReceivingLocationUpdates(); 1530 1531 if (mFocusToneGenerator != null) { 1532 mFocusToneGenerator.release(); 1533 mFocusToneGenerator = null; 1534 } 1535 1536 if (mStorageHint != null) { 1537 mStorageHint.cancel(); 1538 mStorageHint = null; 1539 } 1540 1541 // If we are in an image capture intent and has taken 1542 // a picture, we just clear it in onPause. 1543 mJpegImageData = null; 1544 1545 // Remove the messages in the event queue. 1546 mHandler.removeMessages(RESTART_PREVIEW); 1547 mHandler.removeMessages(FIRST_TIME_INIT); 1548 mHandler.removeMessages(CHECK_DISPLAY_ROTATION); 1549 mHandler.removeMessages(RESET_TOUCH_FOCUS); 1550 1551 super.onPause(); 1552 } 1553 1554 @Override 1555 protected void onActivityResult( 1556 int requestCode, int resultCode, Intent data) { 1557 switch (requestCode) { 1558 case CROP_MSG: { 1559 Intent intent = new Intent(); 1560 if (data != null) { 1561 Bundle extras = data.getExtras(); 1562 if (extras != null) { 1563 intent.putExtras(extras); 1564 } 1565 } 1566 setResultEx(resultCode, intent); 1567 finish(); 1568 1569 File path = getFileStreamPath(sTempCropFilename); 1570 path.delete(); 1571 1572 break; 1573 } 1574 } 1575 } 1576 1577 private boolean canTakePicture() { 1578 return isCameraIdle() && (mPicturesRemaining > 0); 1579 } 1580 1581 private void autoFocus() { 1582 Log.v(TAG, "Start autofocus."); 1583 mFocusStartTime = System.currentTimeMillis(); 1584 mCameraDevice.autoFocus(mAutoFocusCallback); 1585 mCameraState = FOCUSING; 1586 enableCameraControls(false); 1587 updateFocusUI(); 1588 mHandler.removeMessages(RESET_TOUCH_FOCUS); 1589 } 1590 1591 private void cancelAutoFocus() { 1592 Log.v(TAG, "Cancel autofocus."); 1593 mCameraDevice.cancelAutoFocus(); 1594 mCameraState = IDLE; 1595 enableCameraControls(true); 1596 resetTouchFocus(); 1597 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1598 updateFocusUI(); 1599 mHandler.removeMessages(RESET_TOUCH_FOCUS); 1600 } 1601 1602 private void updateFocusUI() { 1603 if (mCameraState == FOCUSING || mCameraState == FOCUSING_SNAP_ON_FINISH) { 1604 mFocusRectangle.showStart(); 1605 } else if (mCameraState == FOCUS_SUCCESS) { 1606 mFocusRectangle.showSuccess(); 1607 } else if (mCameraState == FOCUS_FAIL) { 1608 mFocusRectangle.showFail(); 1609 } else if (mCameraState == IDLE && mFocusArea != null) { 1610 // Users touch on the preview and the rectangle indicates the metering area. 1611 // Either focus area is not supported or autoFocus call is not required. 1612 mFocusRectangle.showStart(); 1613 } else { 1614 mFocusRectangle.clear(); 1615 } 1616 } 1617 1618 // Preview area is touched. Handle touch focus. 1619 @Override 1620 public boolean onTouch(View v, MotionEvent e) { 1621 if (mPausing || !mFirstTimeInitialized || mCameraState == SNAPSHOT_IN_PROGRESS 1622 || mCameraState == FOCUSING_SNAP_ON_FINISH) { 1623 return false; 1624 } 1625 1626 // Do not trigger touch focus if popup window is opened. 1627 if (collapseCameraControls()) return false; 1628 1629 // Check if metering area or focus area is supported. 1630 boolean focusAreaSupported = (mParameters.getMaxNumFocusAreas() > 0 1631 && (mFocusMode.equals(Parameters.FOCUS_MODE_AUTO) || 1632 mFocusMode.equals(Parameters.FOCUS_MODE_MACRO) || 1633 mFocusMode.equals(Parameters.FOCUS_MODE_CONTINUOUS_VIDEO))); 1634 boolean meteringAreaSupported = (mParameters.getMaxNumMeteringAreas() > 0); 1635 if (!focusAreaSupported && !meteringAreaSupported) return false; 1636 1637 boolean callAutoFocusRequired = false; 1638 if (focusAreaSupported && 1639 (mFocusMode.equals(Parameters.FOCUS_MODE_AUTO) || 1640 mFocusMode.equals(Parameters.FOCUS_MODE_MACRO))) { 1641 callAutoFocusRequired = true; 1642 } 1643 1644 // Let users be able to cancel previous touch focus. 1645 if (callAutoFocusRequired && mFocusArea != null && e.getAction() == MotionEvent.ACTION_DOWN 1646 && (mCameraState == FOCUSING || mCameraState == FOCUS_SUCCESS || 1647 mCameraState == FOCUS_FAIL)) { 1648 cancelAutoFocus(); 1649 } 1650 1651 // Initialize variables. 1652 int x = Math.round(e.getX()); 1653 int y = Math.round(e.getY()); 1654 int focusWidth = mFocusRectangle.getWidth(); 1655 int focusHeight = mFocusRectangle.getHeight(); 1656 int previewWidth = mPreviewFrame.getWidth(); 1657 int previewHeight = mPreviewFrame.getHeight(); 1658 if (mFocusArea == null) { 1659 mFocusArea = new ArrayList<Area>(); 1660 mFocusArea.add(new Area(new Rect(), 1)); 1661 } 1662 1663 // Convert the coordinates to driver format. The actual focus area is two times bigger than 1664 // UI because a huge rectangle looks strange. 1665 int areaWidth = focusWidth * 2; 1666 int areaHeight = focusHeight * 2; 1667 int areaLeft = Util.clamp(x - areaWidth / 2, 0, previewWidth - areaWidth); 1668 int areaTop = Util.clamp(y - areaHeight / 2, 0, previewHeight - areaHeight); 1669 Log.d(TAG, "x=" + x + ". y=" + y); 1670 Log.d(TAG, "Focus area left=" + areaLeft + ". top=" + areaTop); 1671 Log.d(TAG, "Preview width=" + previewWidth + ". height=" + previewHeight); 1672 Log.d(TAG, "focusWidth=" + focusWidth + ". focusHeight=" + focusHeight); 1673 Rect rect = mFocusArea.get(0).rect; 1674 convertToFocusArea(areaLeft, areaTop, areaWidth, areaHeight, previewWidth, previewHeight, 1675 mFocusArea.get(0).rect); 1676 1677 // Use margin to set the focus rectangle to the touched area. 1678 RelativeLayout.LayoutParams p = 1679 (RelativeLayout.LayoutParams) mFocusRectangle.getLayoutParams(); 1680 int left = Util.clamp(x - focusWidth / 2, 0, previewWidth - focusWidth); 1681 int top = Util.clamp(y - focusHeight / 2, 0, previewHeight - focusHeight); 1682 p.setMargins(left, top, 0, 0); 1683 // Disable "center" rule because we no longer want to put it in the center. 1684 int[] rules = p.getRules(); 1685 rules[RelativeLayout.CENTER_IN_PARENT] = 0; 1686 mFocusRectangle.requestLayout(); 1687 1688 // Set the focus area and metering area. 1689 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1690 if (callAutoFocusRequired && e.getAction() == MotionEvent.ACTION_UP) { 1691 autoFocus(); 1692 } else { // Just show the rectangle in all other cases. 1693 updateFocusUI(); 1694 // Reset the metering area in 3 seconds. 1695 mHandler.removeMessages(RESET_TOUCH_FOCUS); 1696 mHandler.sendEmptyMessageDelayed(RESET_TOUCH_FOCUS, RESET_TOUCH_FOCUS_DELAY); 1697 } 1698 1699 return true; 1700 } 1701 1702 // Convert the touch point to the focus area in driver format. 1703 public static void convertToFocusArea(int left, int top, int focusWidth, int focusHeight, 1704 int previewWidth, int previewHeight, Rect rect) { 1705 rect.left = Math.round((float) left / previewWidth * 2000 - 1000); 1706 rect.top = Math.round((float) top / previewHeight * 2000 - 1000); 1707 rect.right = Math.round((float) (left + focusWidth) / previewWidth * 2000 - 1000); 1708 rect.bottom = Math.round((float) (top + focusHeight) / previewHeight * 2000 - 1000); 1709 } 1710 1711 void resetTouchFocus() { 1712 // Put focus rectangle to the center. 1713 RelativeLayout.LayoutParams p = 1714 (RelativeLayout.LayoutParams) mFocusRectangle.getLayoutParams(); 1715 int[] rules = p.getRules(); 1716 rules[RelativeLayout.CENTER_IN_PARENT] = RelativeLayout.TRUE; 1717 p.setMargins(0, 0, 0, 0); 1718 1719 mFocusArea = null; 1720 } 1721 1722 @Override 1723 public void onBackPressed() { 1724 if (!isCameraIdle()) { 1725 // ignore backs while we're taking a picture 1726 return; 1727 } else if (!collapseCameraControls()) { 1728 super.onBackPressed(); 1729 } 1730 } 1731 1732 @Override 1733 public boolean onKeyDown(int keyCode, KeyEvent event) { 1734 switch (keyCode) { 1735 case KeyEvent.KEYCODE_FOCUS: 1736 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1737 doFocus(true); 1738 } 1739 return true; 1740 case KeyEvent.KEYCODE_CAMERA: 1741 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1742 doSnap(); 1743 } 1744 return true; 1745 case KeyEvent.KEYCODE_DPAD_CENTER: 1746 // If we get a dpad center event without any focused view, move 1747 // the focus to the shutter button and press it. 1748 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1749 // Start auto-focus immediately to reduce shutter lag. After 1750 // the shutter button gets the focus, doFocus() will be 1751 // called again but it is fine. 1752 if (collapseCameraControls()) return true; 1753 doFocus(true); 1754 if (mShutterButton.isInTouchMode()) { 1755 mShutterButton.requestFocusFromTouch(); 1756 } else { 1757 mShutterButton.requestFocus(); 1758 } 1759 mShutterButton.setPressed(true); 1760 } 1761 return true; 1762 } 1763 1764 return super.onKeyDown(keyCode, event); 1765 } 1766 1767 @Override 1768 public boolean onKeyUp(int keyCode, KeyEvent event) { 1769 switch (keyCode) { 1770 case KeyEvent.KEYCODE_FOCUS: 1771 if (mFirstTimeInitialized) { 1772 doFocus(false); 1773 } 1774 return true; 1775 } 1776 return super.onKeyUp(keyCode, event); 1777 } 1778 1779 private void doSnap() { 1780 if (collapseCameraControls()) return; 1781 1782 Log.v(TAG, "doSnap: mCameraState=" + mCameraState); 1783 // If the user has half-pressed the shutter and focus is completed, we 1784 // can take the photo right away. If the focus mode is infinity, we can 1785 // also take the photo. 1786 if (mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1787 || mFocusMode.equals(Parameters.FOCUS_MODE_FIXED) 1788 || mFocusMode.equals(Parameters.FOCUS_MODE_EDOF) 1789 || (mCameraState == FOCUS_SUCCESS 1790 || mCameraState == FOCUS_FAIL)) { 1791 capture(); 1792 } else if (mCameraState == FOCUSING) { 1793 // Half pressing the shutter (i.e. the focus button event) will 1794 // already have requested AF for us, so just request capture on 1795 // focus here. 1796 mCameraState = FOCUSING_SNAP_ON_FINISH; 1797 } else if (mCameraState == IDLE) { 1798 // Focus key down event is dropped for some reasons. Just ignore. 1799 } 1800 } 1801 1802 private void doFocus(boolean pressed) { 1803 // Do the focus if the mode is not infinity. 1804 if (collapseCameraControls()) return; 1805 if (!(mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1806 || mFocusMode.equals(Parameters.FOCUS_MODE_FIXED) 1807 || mFocusMode.equals(Parameters.FOCUS_MODE_EDOF))) { 1808 if (pressed) { // Focus key down. 1809 // Do not do focus if there is not enoguh storage. Do not focus 1810 // if touch focus has been triggered, that is, camera state is 1811 // FOCUS_SUCCESS or FOCUS_FAIL. 1812 if (canTakePicture() && mCameraState != FOCUS_SUCCESS 1813 && mCameraState != FOCUS_FAIL) { 1814 autoFocus(); 1815 } 1816 } else { // Focus key up. 1817 // User releases half-pressed focus key. 1818 if (mCameraState == FOCUSING || mCameraState == FOCUS_SUCCESS 1819 || mCameraState == FOCUS_FAIL) { 1820 cancelAutoFocus(); 1821 } 1822 } 1823 } 1824 } 1825 1826 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1827 // Make sure we have a surface in the holder before proceeding. 1828 if (holder.getSurface() == null) { 1829 Log.d(TAG, "holder.getSurface() == null"); 1830 return; 1831 } 1832 1833 Log.v(TAG, "surfaceChanged. w=" + w + ". h=" + h); 1834 1835 // We need to save the holder for later use, even when the mCameraDevice 1836 // is null. This could happen if onResume() is invoked after this 1837 // function. 1838 mSurfaceHolder = holder; 1839 1840 // The mCameraDevice will be null if it fails to connect to the camera 1841 // hardware. In this case we will show a dialog and then finish the 1842 // activity, so it's OK to ignore it. 1843 if (mCameraDevice == null) return; 1844 1845 // Sometimes surfaceChanged is called after onPause or before onResume. 1846 // Ignore it. 1847 if (mPausing || isFinishing()) return; 1848 1849 // Set preview display if the surface is being created. Preview was 1850 // already started. Also restart the preview if display rotation has 1851 // changed. Sometimes this happens when the device is held in portrait 1852 // and camera app is opened. Rotation animation takes some time and 1853 // display rotation in onCreate may not be what we want. 1854 if (mCameraState != PREVIEW_STOPPED 1855 && (Util.getDisplayRotation(this) == mDisplayRotation) 1856 && holder.isCreating()) { 1857 // Set preview display if the surface is being created and preview 1858 // was already started. That means preview display was set to null 1859 // and we need to set it now. 1860 setPreviewDisplay(holder); 1861 } else { 1862 // 1. Restart the preview if the size of surface was changed. The 1863 // framework may not support changing preview display on the fly. 1864 // 2. Start the preview now if surface was destroyed and preview 1865 // stopped. 1866 startPreview(); 1867 } 1868 1869 // If first time initialization is not finished, send a message to do 1870 // it later. We want to finish surfaceChanged as soon as possible to let 1871 // user see preview first. 1872 if (!mFirstTimeInitialized) { 1873 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1874 } else { 1875 initializeSecondTime(); 1876 } 1877 } 1878 1879 public void surfaceCreated(SurfaceHolder holder) { 1880 } 1881 1882 public void surfaceDestroyed(SurfaceHolder holder) { 1883 stopPreview(); 1884 mSurfaceHolder = null; 1885 } 1886 1887 private void closeCamera() { 1888 if (mCameraDevice != null) { 1889 CameraHolder.instance().release(); 1890 mCameraDevice.setZoomChangeListener(null); 1891 mCameraDevice = null; 1892 mCameraState = PREVIEW_STOPPED; 1893 } 1894 } 1895 1896 private void setPreviewDisplay(SurfaceHolder holder) { 1897 try { 1898 mCameraDevice.setPreviewDisplay(holder); 1899 } catch (Throwable ex) { 1900 closeCamera(); 1901 throw new RuntimeException("setPreviewDisplay failed", ex); 1902 } 1903 } 1904 1905 private void startPreview() { 1906 if (mPausing || isFinishing()) return; 1907 1908 resetTouchFocus(); 1909 1910 mCameraDevice.setErrorCallback(mErrorCallback); 1911 1912 // If we're previewing already, stop the preview first (this will blank 1913 // the screen). 1914 if (mCameraState != PREVIEW_STOPPED) stopPreview(); 1915 1916 setPreviewDisplay(mSurfaceHolder); 1917 mDisplayRotation = Util.getDisplayRotation(this); 1918 Util.setCameraDisplayOrientation(mDisplayRotation, mCameraId, mCameraDevice); 1919 setCameraParameters(UPDATE_PARAM_ALL); 1920 1921 1922 try { 1923 Log.v(TAG, "startPreview"); 1924 mCameraDevice.startPreview(); 1925 } catch (Throwable ex) { 1926 closeCamera(); 1927 throw new RuntimeException("startPreview failed", ex); 1928 } 1929 mZoomState = ZOOM_STOPPED; 1930 mCameraState = IDLE; 1931 } 1932 1933 private void stopPreview() { 1934 if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) { 1935 Log.v(TAG, "stopPreview"); 1936 mCameraDevice.stopPreview(); 1937 } 1938 mCameraState = PREVIEW_STOPPED; 1939 // If auto focus was in progress, it would have been canceled. 1940 updateFocusUI(); 1941 } 1942 1943 private static boolean isSupported(String value, List<String> supported) { 1944 return supported == null ? false : supported.indexOf(value) >= 0; 1945 } 1946 1947 private void updateCameraParametersInitialize() { 1948 // Reset preview frame rate to the maximum because it may be lowered by 1949 // video camera application. 1950 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1951 if (frameRates != null) { 1952 Integer max = Collections.max(frameRates); 1953 mParameters.setPreviewFrameRate(max); 1954 } 1955 1956 } 1957 1958 private void updateCameraParametersZoom() { 1959 // Set zoom. 1960 if (mParameters.isZoomSupported()) { 1961 mParameters.setZoom(mZoomValue); 1962 } 1963 } 1964 1965 private void updateCameraParametersPreference() { 1966 if (mParameters.getMaxNumFocusAreas() > 0) { 1967 mParameters.setFocusAreas(mFocusArea); 1968 Log.d(TAG, "Parameter focus areas=" + mParameters.get("focus-areas")); 1969 } 1970 1971 if (mParameters.getMaxNumMeteringAreas() > 0) { 1972 // Use the same area for focus and metering. 1973 mParameters.setMeteringAreas(mFocusArea); 1974 } 1975 1976 // Set picture size. 1977 String pictureSize = mPreferences.getString( 1978 CameraSettings.KEY_PICTURE_SIZE, null); 1979 if (pictureSize == null) { 1980 CameraSettings.initialCameraPictureSize(this, mParameters); 1981 } else { 1982 List<Size> supported = mParameters.getSupportedPictureSizes(); 1983 CameraSettings.setCameraPictureSize( 1984 pictureSize, supported, mParameters); 1985 } 1986 1987 // Set the preview frame aspect ratio according to the picture size. 1988 Size size = mParameters.getPictureSize(); 1989 PreviewFrameLayout frameLayout = 1990 (PreviewFrameLayout) findViewById(R.id.frame_layout); 1991 frameLayout.setAspectRatio((double) size.width / size.height); 1992 1993 // Set a preview size that is closest to the viewfinder height and has 1994 // the right aspect ratio. 1995 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1996 Size optimalSize = Util.getOptimalPreviewSize(this, 1997 sizes, (double) size.width / size.height); 1998 Size original = mParameters.getPreviewSize(); 1999 if (!original.equals(optimalSize)) { 2000 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 2001 2002 // Zoom related settings will be changed for different preview 2003 // sizes, so set and read the parameters to get lastest values 2004 mCameraDevice.setParameters(mParameters); 2005 mParameters = mCameraDevice.getParameters(); 2006 } 2007 Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height); 2008 2009 // Since change scene mode may change supported values, 2010 // Set scene mode first, 2011 mSceneMode = mPreferences.getString( 2012 CameraSettings.KEY_SCENE_MODE, 2013 getString(R.string.pref_camera_scenemode_default)); 2014 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 2015 if (!mParameters.getSceneMode().equals(mSceneMode)) { 2016 mParameters.setSceneMode(mSceneMode); 2017 mCameraDevice.setParameters(mParameters); 2018 2019 // Setting scene mode will change the settings of flash mode, 2020 // white balance, and focus mode. Here we read back the 2021 // parameters, so we can know those settings. 2022 mParameters = mCameraDevice.getParameters(); 2023 } 2024 } else { 2025 mSceneMode = mParameters.getSceneMode(); 2026 if (mSceneMode == null) { 2027 mSceneMode = Parameters.SCENE_MODE_AUTO; 2028 } 2029 } 2030 2031 // Set JPEG quality. 2032 int jpegQuality = CameraProfile.getJpegEncodingQualityParameter(mCameraId, 2033 CameraProfile.QUALITY_HIGH); 2034 mParameters.setJpegQuality(jpegQuality); 2035 2036 // For the following settings, we need to check if the settings are 2037 // still supported by latest driver, if not, ignore the settings. 2038 2039 // Set color effect parameter. 2040 String colorEffect = mPreferences.getString( 2041 CameraSettings.KEY_COLOR_EFFECT, 2042 getString(R.string.pref_camera_coloreffect_default)); 2043 if (isSupported(colorEffect, mParameters.getSupportedColorEffects())) { 2044 mParameters.setColorEffect(colorEffect); 2045 } 2046 2047 // Set exposure compensation 2048 String exposure = mPreferences.getString( 2049 CameraSettings.KEY_EXPOSURE, 2050 getString(R.string.pref_exposure_default)); 2051 try { 2052 int value = Integer.parseInt(exposure); 2053 int max = mParameters.getMaxExposureCompensation(); 2054 int min = mParameters.getMinExposureCompensation(); 2055 if (value >= min && value <= max) { 2056 mParameters.setExposureCompensation(value); 2057 } else { 2058 Log.w(TAG, "invalid exposure range: " + exposure); 2059 } 2060 } catch (NumberFormatException e) { 2061 Log.w(TAG, "invalid exposure: " + exposure); 2062 } 2063 2064 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 2065 // Set flash mode. 2066 String flashMode = mPreferences.getString( 2067 CameraSettings.KEY_FLASH_MODE, 2068 getString(R.string.pref_camera_flashmode_default)); 2069 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 2070 if (isSupported(flashMode, supportedFlash)) { 2071 mParameters.setFlashMode(flashMode); 2072 } else { 2073 flashMode = mParameters.getFlashMode(); 2074 if (flashMode == null) { 2075 flashMode = getString( 2076 R.string.pref_camera_flashmode_no_flash); 2077 } 2078 } 2079 2080 // Set white balance parameter. 2081 String whiteBalance = mPreferences.getString( 2082 CameraSettings.KEY_WHITE_BALANCE, 2083 getString(R.string.pref_camera_whitebalance_default)); 2084 if (isSupported(whiteBalance, 2085 mParameters.getSupportedWhiteBalance())) { 2086 mParameters.setWhiteBalance(whiteBalance); 2087 } else { 2088 whiteBalance = mParameters.getWhiteBalance(); 2089 if (whiteBalance == null) { 2090 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 2091 } 2092 } 2093 2094 // Set focus mode. 2095 mFocusMode = mPreferences.getString( 2096 CameraSettings.KEY_FOCUS_MODE, 2097 getString(R.string.pref_camera_focusmode_default)); 2098 if (isSupported(mFocusMode, mParameters.getSupportedFocusModes())) { 2099 mParameters.setFocusMode(mFocusMode); 2100 } else { 2101 mFocusMode = mParameters.getFocusMode(); 2102 if (mFocusMode == null) { 2103 mFocusMode = Parameters.FOCUS_MODE_AUTO; 2104 } 2105 } 2106 } else { 2107 mFocusMode = mParameters.getFocusMode(); 2108 } 2109 } 2110 2111 // We separate the parameters into several subsets, so we can update only 2112 // the subsets actually need updating. The PREFERENCE set needs extra 2113 // locking because the preference can be changed from GLThread as well. 2114 private void setCameraParameters(int updateSet) { 2115 mParameters = mCameraDevice.getParameters(); 2116 2117 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 2118 updateCameraParametersInitialize(); 2119 } 2120 2121 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 2122 updateCameraParametersZoom(); 2123 } 2124 2125 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 2126 updateCameraParametersPreference(); 2127 } 2128 2129 mCameraDevice.setParameters(mParameters); 2130 } 2131 2132 // If the Camera is idle, update the parameters immediately, otherwise 2133 // accumulate them in mUpdateSet and update later. 2134 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 2135 mUpdateSet |= additionalUpdateSet; 2136 if (mCameraDevice == null) { 2137 // We will update all the parameters when we open the device, so 2138 // we don't need to do anything now. 2139 mUpdateSet = 0; 2140 return; 2141 } else if (isCameraIdle()) { 2142 setCameraParameters(mUpdateSet); 2143 updateSceneModeUI(); 2144 mUpdateSet = 0; 2145 } else { 2146 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 2147 mHandler.sendEmptyMessageDelayed( 2148 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 2149 } 2150 } 2151 } 2152 2153 private void gotoGallery() { 2154 MenuHelper.gotoCameraImageGallery(this); 2155 } 2156 2157 private void startReceivingLocationUpdates() { 2158 if (mLocationManager != null) { 2159 try { 2160 mLocationManager.requestLocationUpdates( 2161 LocationManager.NETWORK_PROVIDER, 2162 1000, 2163 0F, 2164 mLocationListeners[1]); 2165 } catch (SecurityException ex) { 2166 Log.i(TAG, "fail to request location update, ignore", ex); 2167 } catch (IllegalArgumentException ex) { 2168 Log.d(TAG, "provider does not exist " + ex.getMessage()); 2169 } 2170 try { 2171 mLocationManager.requestLocationUpdates( 2172 LocationManager.GPS_PROVIDER, 2173 1000, 2174 0F, 2175 mLocationListeners[0]); 2176 showGpsOnScreenIndicator(false); 2177 } catch (SecurityException ex) { 2178 Log.i(TAG, "fail to request location update, ignore", ex); 2179 } catch (IllegalArgumentException ex) { 2180 Log.d(TAG, "provider does not exist " + ex.getMessage()); 2181 } 2182 Log.d(TAG, "startReceivingLocationUpdates"); 2183 } 2184 } 2185 2186 private void stopReceivingLocationUpdates() { 2187 if (mLocationManager != null) { 2188 for (int i = 0; i < mLocationListeners.length; i++) { 2189 try { 2190 mLocationManager.removeUpdates(mLocationListeners[i]); 2191 } catch (Exception ex) { 2192 Log.i(TAG, "fail to remove location listners, ignore", ex); 2193 } 2194 } 2195 Log.d(TAG, "stopReceivingLocationUpdates"); 2196 } 2197 hideGpsOnScreenIndicator(); 2198 } 2199 2200 private Location getCurrentLocation() { 2201 // go in best to worst order 2202 for (int i = 0; i < mLocationListeners.length; i++) { 2203 Location l = mLocationListeners[i].current(); 2204 if (l != null) return l; 2205 } 2206 Log.d(TAG, "No location received yet."); 2207 return null; 2208 } 2209 2210 private boolean isCameraIdle() { 2211 return mCameraState == IDLE || mCameraState == FOCUS_SUCCESS || mCameraState == FOCUS_FAIL; 2212 } 2213 2214 private boolean isImageCaptureIntent() { 2215 String action = getIntent().getAction(); 2216 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 2217 } 2218 2219 private void setupCaptureParams() { 2220 Bundle myExtras = getIntent().getExtras(); 2221 if (myExtras != null) { 2222 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 2223 mCropValue = myExtras.getString("crop"); 2224 } 2225 } 2226 2227 private void showPostCaptureAlert() { 2228 if (mIsImageCaptureIntent) { 2229 if (mIndicatorWheel == null) { 2230 mShutterButton.setVisibility(View.INVISIBLE); 2231 } else { 2232 mShutterButton.setEnabled(false); 2233 } 2234 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2235 for (int id : pickIds) { 2236 View button = findViewById(id); 2237 ((View) button.getParent()).setVisibility(View.VISIBLE); 2238 } 2239 2240 // Remove the text of the cancel button 2241 View view = findViewById(R.id.btn_cancel); 2242 if (view instanceof Button) ((Button) view).setText(""); 2243 } 2244 } 2245 2246 private void hidePostCaptureAlert() { 2247 if (mIsImageCaptureIntent) { 2248 if (mIndicatorWheel == null) { 2249 mShutterButton.setVisibility(View.VISIBLE); 2250 } else { 2251 mShutterButton.setEnabled(true); 2252 } 2253 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2254 for (int id : pickIds) { 2255 View button = findViewById(id); 2256 ((View) button.getParent()).setVisibility(View.GONE); 2257 } 2258 enableCameraControls(true); 2259 2260 // Restore the text of the cancel button 2261 View view = findViewById(R.id.btn_cancel); 2262 if (view instanceof Button) { 2263 ((Button) view).setText(R.string.review_cancel); 2264 } 2265 } 2266 } 2267 2268 @Override 2269 public boolean onPrepareOptionsMenu(Menu menu) { 2270 super.onPrepareOptionsMenu(menu); 2271 // Only show the menu when camera is idle. 2272 for (int i = 0; i < menu.size(); i++) { 2273 menu.getItem(i).setVisible(isCameraIdle()); 2274 } 2275 2276 return true; 2277 } 2278 2279 @Override 2280 public boolean onCreateOptionsMenu(Menu menu) { 2281 super.onCreateOptionsMenu(menu); 2282 2283 if (mIsImageCaptureIntent) { 2284 // No options menu for attach mode. 2285 return false; 2286 } else { 2287 addBaseMenuItems(menu); 2288 } 2289 return true; 2290 } 2291 2292 private void addBaseMenuItems(Menu menu) { 2293 MenuHelper.addSwitchModeMenuItem(menu, true, new Runnable() { 2294 public void run() { 2295 switchToVideoMode(); 2296 } 2297 }); 2298 MenuItem gallery = menu.add(Menu.NONE, Menu.NONE, 2299 MenuHelper.POSITION_GOTO_GALLERY, 2300 R.string.camera_gallery_photos_text) 2301 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2302 public boolean onMenuItemClick(MenuItem item) { 2303 gotoGallery(); 2304 return true; 2305 } 2306 }); 2307 gallery.setIcon(android.R.drawable.ic_menu_gallery); 2308 mGalleryItems.add(gallery); 2309 2310 if (mNumberOfCameras > 1) { 2311 menu.add(Menu.NONE, Menu.NONE, 2312 MenuHelper.POSITION_SWITCH_CAMERA_ID, 2313 R.string.switch_camera_id) 2314 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2315 public boolean onMenuItemClick(MenuItem item) { 2316 CameraSettings.writePreferredCameraId(mPreferences, 2317 ((mCameraId == mFrontCameraId) 2318 ? mBackCameraId : mFrontCameraId)); 2319 onSharedPreferenceChanged(); 2320 return true; 2321 } 2322 }).setIcon(android.R.drawable.ic_menu_camera); 2323 } 2324 } 2325 2326 private boolean switchToVideoMode() { 2327 if (isFinishing() || !isCameraIdle()) return false; 2328 MenuHelper.gotoVideoMode(Camera.this); 2329 mHandler.removeMessages(FIRST_TIME_INIT); 2330 finish(); 2331 return true; 2332 } 2333 2334 public boolean onSwitchChanged(Switcher source, boolean onOff) { 2335 if (onOff == SWITCH_VIDEO) { 2336 return switchToVideoMode(); 2337 } else { 2338 return true; 2339 } 2340 } 2341 2342 private void onSharedPreferenceChanged() { 2343 // ignore the events after "onPause()" 2344 if (mPausing) return; 2345 2346 boolean recordLocation; 2347 2348 recordLocation = RecordLocationPreference.get( 2349 mPreferences, getContentResolver()); 2350 2351 if (mRecordLocation != recordLocation) { 2352 mRecordLocation = recordLocation; 2353 if (mRecordLocation) { 2354 startReceivingLocationUpdates(); 2355 } else { 2356 stopReceivingLocationUpdates(); 2357 } 2358 } 2359 int cameraId = CameraSettings.readPreferredCameraId(mPreferences); 2360 if (mCameraId != cameraId) { 2361 // Restart the activity to have a crossfade animation. 2362 // TODO: Use SurfaceTexture to implement a better and faster 2363 // animation. 2364 if (mIsImageCaptureIntent) { 2365 // If the intent is camera capture, stay in camera capture mode. 2366 MenuHelper.gotoCameraMode(this, getIntent()); 2367 } else { 2368 MenuHelper.gotoCameraMode(this); 2369 } 2370 2371 finish(); 2372 } else { 2373 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 2374 } 2375 } 2376 2377 @Override 2378 public void onUserInteraction() { 2379 super.onUserInteraction(); 2380 keepScreenOnAwhile(); 2381 } 2382 2383 private void resetScreenOn() { 2384 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2385 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2386 } 2387 2388 private void keepScreenOnAwhile() { 2389 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2390 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2391 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2392 } 2393 2394 private class MyHeadUpDisplayListener implements HeadUpDisplay.Listener { 2395 2396 public void onSharedPreferenceChanged() { 2397 Camera.this.onSharedPreferenceChanged(); 2398 } 2399 2400 public void onRestorePreferencesClicked() { 2401 Camera.this.onRestorePreferencesClicked(); 2402 } 2403 2404 public void onPopupWindowVisibilityChanged(int visibility) { 2405 } 2406 } 2407 2408 protected void onRestorePreferencesClicked() { 2409 if (mPausing) return; 2410 Runnable runnable = new Runnable() { 2411 public void run() { 2412 restorePreferences(); 2413 } 2414 }; 2415 MenuHelper.confirmAction(this, 2416 getString(R.string.confirm_restore_title), 2417 getString(R.string.confirm_restore_message), 2418 runnable); 2419 } 2420 2421 private void restorePreferences() { 2422 // Reset the zoom. Zoom value is not stored in preference. 2423 if (mParameters.isZoomSupported()) { 2424 mZoomValue = 0; 2425 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 2426 if (mZoomPicker != null) mZoomPicker.setZoomIndex(0); 2427 } 2428 2429 if (mHeadUpDisplay != null) { 2430 mHeadUpDisplay.restorePreferences(mParameters); 2431 } 2432 2433 if (mIndicatorWheel != null) { 2434 mIndicatorWheel.dismissSettingPopup(); 2435 CameraSettings.restorePreferences(Camera.this, mPreferences, 2436 mParameters); 2437 initializeIndicatorWheel(); 2438 onSharedPreferenceChanged(); 2439 } 2440 } 2441 2442 protected void onOverriddenPreferencesClicked() { 2443 if (mPausing) return; 2444 if (mNotSelectableToast == null) { 2445 String str = getResources().getString(R.string.not_selectable_in_scene_mode); 2446 mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT); 2447 } 2448 mNotSelectableToast.show(); 2449 } 2450 2451 private void createSharePopup() { 2452 if (mSharePopup != null) mSharePopup.dismiss(); 2453 mSharePopup = new SharePopup(this, mThumbnail.getUri(), 2454 mThumbnail.getBitmap(), mOrientationCompensation, mThumbnailButton); 2455 mSharePopup.showAtLocation(mThumbnailButton, Gravity.NO_GRAVITY, 0, 0); 2456 } 2457 2458 private void dismissSharePopup() { 2459 if (mSharePopup != null) { 2460 mSharePopup.dismiss(); 2461 mSharePopup = null; 2462 } 2463 } 2464 2465 private void onShareButtonClicked() { 2466 if (mPausing) return; 2467 2468 // Share the last captured picture. 2469 if (mThumbnail != null) { 2470 Intent intent = new Intent(Intent.ACTION_SEND); 2471 intent.setType("image/jpeg"); 2472 intent.putExtra(Intent.EXTRA_STREAM, mThumbnail.getUri()); 2473 startActivity(Intent.createChooser(intent, getString(R.string.share_picture_via))); 2474 } else { // No last picture 2475 if (mNoShareToast == null) { 2476 mNoShareToast = Toast.makeText(this, 2477 getResources().getString(R.string.no_picture_to_share), Toast.LENGTH_SHORT); 2478 } 2479 mNoShareToast.show(); 2480 } 2481 } 2482 2483 private class MyIndicatorWheelListener implements IndicatorWheel.Listener { 2484 public void onSharedPreferenceChanged() { 2485 Camera.this.onSharedPreferenceChanged(); 2486 } 2487 2488 public void onRestorePreferencesClicked() { 2489 Camera.this.onRestorePreferencesClicked(); 2490 } 2491 2492 public void onOverriddenPreferencesClicked() { 2493 Camera.this.onOverriddenPreferencesClicked(); 2494 } 2495 } 2496 2497 private class MyCameraPickerListener implements CameraPicker.Listener { 2498 public void onSharedPreferenceChanged() { 2499 Camera.this.onSharedPreferenceChanged(); 2500 } 2501 } 2502} 2503