Camera.java revision f4823480fdda6e6a4ec7deb28199a7c9631016e5
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 android.app.Activity; 20import android.content.ActivityNotFoundException; 21import android.content.BroadcastReceiver; 22import android.content.ContentProviderClient; 23import android.content.ContentResolver; 24import android.content.Context; 25import android.content.Intent; 26import android.content.IntentFilter; 27import android.content.SharedPreferences; 28import android.content.SharedPreferences.OnSharedPreferenceChangeListener; 29import android.content.res.Resources; 30import android.graphics.Bitmap; 31import android.graphics.BitmapFactory; 32import android.hardware.Camera.Parameters; 33import android.hardware.Camera.PictureCallback; 34import android.hardware.Camera.Size; 35import android.location.Location; 36import android.location.LocationManager; 37import android.location.LocationProvider; 38import android.media.AudioManager; 39import android.media.ToneGenerator; 40import android.net.Uri; 41import android.os.Build; 42import android.os.Bundle; 43import android.os.Debug; 44import android.os.Environment; 45import android.os.Handler; 46import android.os.Message; 47import android.os.SystemClock; 48import android.os.SystemProperties; 49import android.preference.PreferenceManager; 50import android.provider.MediaStore; 51import android.util.AttributeSet; 52import android.util.Log; 53import android.view.Display; 54import android.view.GestureDetector; 55import android.view.KeyEvent; 56import android.view.LayoutInflater; 57import android.view.Menu; 58import android.view.MenuItem; 59import android.view.MotionEvent; 60import android.view.OrientationEventListener; 61import android.view.SurfaceHolder; 62import android.view.SurfaceView; 63import android.view.View; 64import android.view.ViewGroup; 65import android.view.Window; 66import android.view.WindowManager; 67import android.view.MenuItem.OnMenuItemClickListener; 68import android.widget.ImageView; 69import android.widget.ZoomButtonsController; 70 71import com.android.camera.gallery.IImage; 72import com.android.camera.gallery.IImageList; 73 74import java.io.File; 75import java.io.FileNotFoundException; 76import java.io.FileOutputStream; 77import java.io.IOException; 78import java.io.OutputStream; 79import java.text.SimpleDateFormat; 80import java.util.ArrayList; 81import java.util.Collections; 82import java.util.Date; 83import java.util.List; 84 85/** The Camera activity which can preview and take pictures. */ 86public class Camera extends NoSearchActivity implements View.OnClickListener, 87 ShutterButton.OnShutterButtonListener, SurfaceHolder.Callback, 88 Switcher.OnSwitchListener, OnScreenSettings.OnVisibilityChangedListener, 89 OnSharedPreferenceChangeListener { 90 91 private static final String TAG = "camera"; 92 93 // This value must be as same as the item value of the string array 94 // "flash_mode" in file "res/values/arrays.xml". 95 private static final String NO_FLASH_MODE = "no_flash"; 96 private static final int CROP_MSG = 1; 97 private static final int FIRST_TIME_INIT = 2; 98 private static final int RESTART_PREVIEW = 3; 99 private static final int CLEAR_SCREEN_DELAY = 4; 100 101 private static final String GPS_MODE_ON = "on"; 102 private static final String GPS_MODE_OFF = "off"; 103 104 private static final int SCREEN_DELAY = 2 * 60 * 1000; 105 private static final int FOCUS_BEEP_VOLUME = 100; 106 107 private static final String SCENE_MODE_ON = "on"; 108 private static final String SCENE_MODE_OFF = "off"; 109 110 private boolean mZooming = false; 111 private boolean mSmoothZoomSupported = false; 112 private int mZoomValue; // The current zoom value. 113 private int mZoomMax; 114 115 private Parameters mParameters; 116 private Parameters mInitialParams; 117 118 private OrientationEventListener mOrientationListener; 119 private int mLastOrientation = 0; // No rotation (landscape) by default. 120 private SharedPreferences mPreferences; 121 122 private static final int IDLE = 1; 123 private static final int SNAPSHOT_IN_PROGRESS = 2; 124 125 private static final boolean SWITCH_CAMERA = true; 126 private static final boolean SWITCH_VIDEO = false; 127 128 private int mStatus = IDLE; 129 private static final String sTempCropFilename = "crop-temp"; 130 131 private android.hardware.Camera mCameraDevice; 132 private ContentProviderClient mMediaProviderClient; 133 private SurfaceView mSurfaceView; 134 private SurfaceHolder mSurfaceHolder = null; 135 private ShutterButton mShutterButton; 136 private FocusRectangle mFocusRectangle; 137 private IconIndicator mGpsIndicator; 138 private IconIndicator mFlashIndicator; 139 private IconIndicator mFocusIndicator; 140 private IconIndicator mWhitebalanceIndicator; 141 private IconIndicator mSceneModeIndicator; 142 private ToneGenerator mFocusToneGenerator; 143 private ZoomButtonsController mZoomButtons; 144 private GestureDetector mGestureDetector; 145 private Switcher mSwitcher; 146 private boolean mStartPreviewFail = false; 147 148 // mPostCaptureAlert, mLastPictureButton, mThumbController 149 // are non-null only if isImageCaptureIntent() is true. 150 private ImageView mLastPictureButton; 151 private ThumbnailController mThumbController; 152 153 // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. 154 private String mCropValue; 155 private Uri mSaveUri; 156 157 private ImageCapture mImageCapture = null; 158 159 private boolean mPreviewing; 160 private boolean mPausing; 161 private boolean mFirstTimeInitialized; 162 private boolean mIsImageCaptureIntent; 163 private boolean mRecordLocation; 164 165 private static final int FOCUS_NOT_STARTED = 0; 166 private static final int FOCUSING = 1; 167 private static final int FOCUSING_SNAP_ON_FINISH = 2; 168 private static final int FOCUS_SUCCESS = 3; 169 private static final int FOCUS_FAIL = 4; 170 private int mFocusState = FOCUS_NOT_STARTED; 171 172 private ContentResolver mContentResolver; 173 private boolean mDidRegister = false; 174 175 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 176 177 private LocationManager mLocationManager = null; 178 179 // Use OneShotPreviewCallback to measure the time between 180 // JpegPictureCallback and preview. 181 private final OneShotPreviewCallback mOneShotPreviewCallback = 182 new OneShotPreviewCallback(); 183 private final ShutterCallback mShutterCallback = new ShutterCallback(); 184 private final PostViewPictureCallback mPostViewPictureCallback = 185 new PostViewPictureCallback(); 186 private final RawPictureCallback mRawPictureCallback = 187 new RawPictureCallback(); 188 private final AutoFocusCallback mAutoFocusCallback = 189 new AutoFocusCallback(); 190 private final ZoomCallback mZoomCallback = new ZoomCallback(); 191 // Use the ErrorCallback to capture the crash count 192 // on the mediaserver 193 private final ErrorCallback mErrorCallback = new ErrorCallback(); 194 195 private long mFocusStartTime; 196 private long mFocusCallbackTime; 197 private long mCaptureStartTime; 198 private long mShutterCallbackTime; 199 private long mPostViewPictureCallbackTime; 200 private long mRawPictureCallbackTime; 201 private long mJpegPictureCallbackTime; 202 private int mPicturesRemaining; 203 204 // These latency time are for the CameraLatency test. 205 public long mAutoFocusTime; 206 public long mShutterLag; 207 public long mShutterToPictureDisplayedTime; 208 public long mPictureDisplayedToJpegCallbackTime; 209 public long mJpegCallbackToFirstFrameTime; 210 211 // Add for test 212 public static boolean mMediaServerDied = false; 213 214 // Focus mode. Options are pref_camera_focusmode_entryvalues. 215 private String mFocusMode; 216 217 private final Handler mHandler = new MainHandler(); 218 private OnScreenSettings mSettings; 219 220 /** 221 * This Handler is used to post message back onto the main thread of the 222 * application 223 */ 224 private class MainHandler extends Handler { 225 @Override 226 public void handleMessage(Message msg) { 227 switch (msg.what) { 228 case RESTART_PREVIEW: { 229 restartPreview(); 230 break; 231 } 232 233 case CLEAR_SCREEN_DELAY: { 234 getWindow().clearFlags( 235 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 236 break; 237 } 238 239 case FIRST_TIME_INIT: { 240 initializeFirstTime(); 241 break; 242 } 243 } 244 } 245 } 246 247 private void keepMediaProviderInstance() { 248 // We want to keep a reference to MediaProvider in camera's lifecycle. 249 // TODO: Utilize mMediaProviderClient instance to replace 250 // ContentResolver calls. 251 if (mMediaProviderClient == null) { 252 mMediaProviderClient = getContentResolver() 253 .acquireContentProviderClient(MediaStore.AUTHORITY); 254 } 255 } 256 257 // Snapshots can only be taken after this is called. It should be called 258 // once only. We could have done these things in onCreate() but we want to 259 // make preview screen appear as soon as possible. 260 private void initializeFirstTime() { 261 if (mFirstTimeInitialized) return; 262 263 // Create orientation listenter. This should be done first because it 264 // takes some time to get first orientation. 265 mOrientationListener = new OrientationEventListener(Camera.this) { 266 @Override 267 public void onOrientationChanged(int orientation) { 268 // We keep the last known orientation. So if the user 269 // first orient the camera then point the camera to 270 if (orientation != ORIENTATION_UNKNOWN) { 271 orientation += 90; 272 } 273 orientation = ImageManager.roundOrientation(orientation); 274 if (orientation != mLastOrientation) { 275 mLastOrientation = orientation; 276 if (!mIsImageCaptureIntent) { 277 setOrientationIndicator(mLastOrientation); 278 } 279 } 280 } 281 }; 282 mOrientationListener.enable(); 283 284 // Initialize location sevice. 285 mLocationManager = (LocationManager) 286 getSystemService(Context.LOCATION_SERVICE); 287 readPreference(); 288 if (mRecordLocation) startReceivingLocationUpdates(); 289 290 keepMediaProviderInstance(); 291 checkStorage(); 292 293 // Initialize last picture button. 294 mContentResolver = getContentResolver(); 295 if (!mIsImageCaptureIntent) { 296 findViewById(R.id.camera_switch).setOnClickListener(this); 297 mLastPictureButton = 298 (ImageView) findViewById(R.id.review_thumbnail); 299 mLastPictureButton.setOnClickListener(this); 300 mThumbController = new ThumbnailController( 301 getResources(), mLastPictureButton, mContentResolver); 302 mThumbController.loadData(ImageManager.getLastImageThumbPath()); 303 // Update last image thumbnail. 304 updateThumbnailButton(); 305 } 306 307 // Initialize shutter button. 308 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 309 mShutterButton.setOnShutterButtonListener(this); 310 mShutterButton.setVisibility(View.VISIBLE); 311 312 mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); 313 updateFocusIndicator(); 314 315 // Initialize GPS indicator. 316 mGpsIndicator = (IconIndicator) findViewById(R.id.gps_icon); 317 318 ImageManager.ensureOSXCompatibleFolder(); 319 320 installIntentFilter(); 321 322 initializeFocusTone(); 323 324 initializeZoom(); 325 326 mFirstTimeInitialized = true; 327 } 328 329 private void updateThumbnailButton() { 330 // Update last image if URI is invalid and the storage is ready. 331 if (!mThumbController.isUriValid() && mPicturesRemaining >= 0) { 332 updateLastImage(); 333 } 334 mThumbController.updateDisplayIfNeeded(); 335 } 336 337 // If the activity is paused and resumed, this method will be called in 338 // onResume. 339 private void initializeSecondTime() { 340 // Start orientation listener as soon as possible because it takes 341 // some time to get first orientation. 342 mOrientationListener.enable(); 343 344 // Start location update if needed. 345 readPreference(); 346 if (mRecordLocation) startReceivingLocationUpdates(); 347 348 installIntentFilter(); 349 350 initializeFocusTone(); 351 352 keepMediaProviderInstance(); 353 checkStorage(); 354 355 if (mZoomButtons != null) { 356 mCameraDevice.setZoomCallback(mZoomCallback); 357 } 358 359 if (!mIsImageCaptureIntent) { 360 updateThumbnailButton(); 361 } 362 } 363 364 private void initializeZoom() { 365 if (!mParameters.isZoomSupported()) return; 366 367 mZoomMax = mParameters.getMaxZoom(); 368 Log.v(TAG, "Max zoom=" + mZoomMax); 369 mSmoothZoomSupported = mParameters.isSmoothZoomSupported(); 370 Log.v(TAG, "Smooth zoom supported=" + mSmoothZoomSupported); 371 372 mGestureDetector = new GestureDetector(this, new ZoomGestureListener()); 373 mCameraDevice.setZoomCallback(mZoomCallback); 374 mZoomButtons = new ZoomButtonsController(mSurfaceView); 375 mZoomButtons.setAutoDismissed(true); 376 mZoomButtons.setZoomSpeed(100); 377 mZoomButtons.setOnZoomListener( 378 new ZoomButtonsController.OnZoomListener() { 379 public void onVisibilityChanged(boolean visible) { 380 if (visible) { 381 updateZoomButtonsEnabled(); 382 } 383 } 384 385 public void onZoom(boolean zoomIn) { 386 if (isZooming()) return; 387 388 if (zoomIn) { 389 if (mZoomValue < mZoomMax) { 390 if (mSmoothZoomSupported) { 391 mCameraDevice.startSmoothZoom(mZoomValue + 1); 392 mZooming = true; 393 } else { 394 mParameters.setZoom(++mZoomValue); 395 mCameraDevice.setParameters(mParameters); 396 updateZoomButtonsEnabled(); 397 } 398 } 399 } else { 400 if (mZoomValue > 0) { 401 if (mSmoothZoomSupported) { 402 mCameraDevice.startSmoothZoom(mZoomValue - 1); 403 mZooming = true; 404 } else { 405 mParameters.setZoom(--mZoomValue); 406 mCameraDevice.setParameters(mParameters); 407 updateZoomButtonsEnabled(); 408 } 409 } 410 } 411 } 412 }); 413 } 414 415 public void onVisibilityChanged(boolean visible) { 416 // When the on-screen setting is not displayed, we show the gripper. 417 // When the on-screen setting is displayed, we hide the gripper. 418 int reverseVisibility = visible ? View.INVISIBLE : View.VISIBLE; 419 findViewById(R.id.btn_gripper).setVisibility(reverseVisibility); 420 findViewById(R.id.indicator_bar).setVisibility(reverseVisibility); 421 422 if (visible) { 423 mPreferences.registerOnSharedPreferenceChangeListener(this); 424 } else { 425 mPreferences.unregisterOnSharedPreferenceChangeListener(this); 426 } 427 } 428 429 private boolean isZooming() { 430 Log.v(TAG, "mZooming=" + mZooming); 431 return mZooming; 432 } 433 434 private void updateZoomButtonsEnabled() { 435 mZoomButtons.setZoomInEnabled(mZoomValue < mZoomMax); 436 mZoomButtons.setZoomOutEnabled(mZoomValue > 0); 437 } 438 439 private class ZoomGestureListener extends 440 GestureDetector.SimpleOnGestureListener { 441 @Override 442 public boolean onDown(MotionEvent e) { 443 // Show zoom buttons only when preview is started and snapshot 444 // is not in progress. mZoomButtons may be null if it is not 445 // initialized. 446 if (!mPausing && isCameraIdle() && mPreviewing 447 && mZoomButtons != null) { 448 mZoomButtons.setVisible(true); 449 } 450 return true; 451 } 452 453 @Override 454 public boolean onDoubleTap(MotionEvent e) { 455 // Perform zoom only when preview is started and snapshot is not in 456 // progress. 457 if (mPausing || !isCameraIdle() || !mPreviewing 458 || mZoomButtons == null || isZooming()) { 459 return false; 460 } 461 462 if (mZoomValue < mZoomMax) { 463 // Zoom in to the maximum. 464 while (mZoomValue < mZoomMax) { 465 mParameters.setZoom(++mZoomValue); 466 mCameraDevice.setParameters(mParameters); 467 // Wait for a while so we are not changing zoom too fast. 468 try { 469 Thread.sleep(5); 470 } catch (InterruptedException ex) { 471 } 472 } 473 } else { 474 // Zoom out to the minimum. 475 while (mZoomValue > 0) { 476 mParameters.setZoom(--mZoomValue); 477 mCameraDevice.setParameters(mParameters); 478 // Wait for a while so we are not changing zoom too fast. 479 try { 480 Thread.sleep(5); 481 } catch (InterruptedException ex) { 482 } 483 } 484 } 485 updateZoomButtonsEnabled(); 486 return true; 487 } 488 } 489 490 @Override 491 public boolean dispatchTouchEvent(MotionEvent m) { 492 if (!super.dispatchTouchEvent(m) && mGestureDetector != null) { 493 return mGestureDetector.onTouchEvent(m); 494 } 495 return true; 496 } 497 498 LocationListener [] mLocationListeners = new LocationListener[] { 499 new LocationListener(LocationManager.GPS_PROVIDER), 500 new LocationListener(LocationManager.NETWORK_PROVIDER) 501 }; 502 503 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 504 @Override 505 public void onReceive(Context context, Intent intent) { 506 String action = intent.getAction(); 507 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 508 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 509 || action.equals(Intent.ACTION_MEDIA_CHECKING) 510 || action.equals(Intent.ACTION_MEDIA_SCANNER_STARTED)) { 511 checkStorage(); 512 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 513 checkStorage(); 514 if (!mIsImageCaptureIntent) { 515 updateThumbnailButton(); 516 } 517 } 518 } 519 }; 520 521 private class LocationListener 522 implements android.location.LocationListener { 523 Location mLastLocation; 524 boolean mValid = false; 525 String mProvider; 526 527 public LocationListener(String provider) { 528 mProvider = provider; 529 mLastLocation = new Location(mProvider); 530 } 531 532 public void onLocationChanged(Location newLocation) { 533 if (newLocation.getLatitude() == 0.0 534 && newLocation.getLongitude() == 0.0) { 535 // Hack to filter out 0.0,0.0 locations 536 return; 537 } 538 // If GPS is available before start camera, we won't get status 539 // update so update GPS indicator when we receive data. 540 if (mRecordLocation 541 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 542 mGpsIndicator.setMode(GPS_MODE_ON); 543 } 544 mLastLocation.set(newLocation); 545 mValid = true; 546 } 547 548 public void onProviderEnabled(String provider) { 549 } 550 551 public void onProviderDisabled(String provider) { 552 mValid = false; 553 } 554 555 public void onStatusChanged( 556 String provider, int status, Bundle extras) { 557 switch(status) { 558 case LocationProvider.OUT_OF_SERVICE: 559 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 560 mValid = false; 561 if (mRecordLocation && 562 LocationManager.GPS_PROVIDER.equals(provider)) { 563 mGpsIndicator.setMode(GPS_MODE_OFF); 564 } 565 break; 566 } 567 } 568 } 569 570 public Location current() { 571 return mValid ? mLastLocation : null; 572 } 573 } 574 575 private final class OneShotPreviewCallback 576 implements android.hardware.Camera.PreviewCallback { 577 public void onPreviewFrame(byte[] data, 578 android.hardware.Camera camera) { 579 long now = System.currentTimeMillis(); 580 if (mJpegPictureCallbackTime != 0) { 581 mJpegCallbackToFirstFrameTime = now - mJpegPictureCallbackTime; 582 Log.v(TAG, "mJpegCallbackToFirstFrameTime = " 583 + mJpegCallbackToFirstFrameTime + "ms"); 584 mJpegPictureCallbackTime = 0; 585 } else { 586 Log.v(TAG, "Got first frame"); 587 } 588 } 589 } 590 591 private final class ShutterCallback 592 implements android.hardware.Camera.ShutterCallback { 593 public void onShutter() { 594 mShutterCallbackTime = System.currentTimeMillis(); 595 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 596 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 597 clearFocusState(); 598 } 599 } 600 601 private final class PostViewPictureCallback implements PictureCallback { 602 public void onPictureTaken( 603 byte [] data, android.hardware.Camera camera) { 604 mPostViewPictureCallbackTime = System.currentTimeMillis(); 605 Log.v(TAG, "mShutterToPostViewCallbackTime = " 606 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 607 + "ms"); 608 } 609 } 610 611 private final class RawPictureCallback implements PictureCallback { 612 public void onPictureTaken( 613 byte [] rawData, android.hardware.Camera camera) { 614 mRawPictureCallbackTime = System.currentTimeMillis(); 615 Log.v(TAG, "mShutterToRawCallbackTime = " 616 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 617 } 618 } 619 620 private final class JpegPictureCallback implements PictureCallback { 621 Location mLocation; 622 623 public JpegPictureCallback(Location loc) { 624 mLocation = loc; 625 } 626 627 public void onPictureTaken( 628 final byte [] jpegData, final android.hardware.Camera camera) { 629 if (mPausing) { 630 return; 631 } 632 633 mJpegPictureCallbackTime = System.currentTimeMillis(); 634 // If postview callback has arrived, the captured image is displayed 635 // in postview callback. If not, the captured image is displayed in 636 // raw picture callback. 637 if (mPostViewPictureCallbackTime != 0) { 638 mShutterToPictureDisplayedTime = 639 mPostViewPictureCallbackTime - mShutterCallbackTime; 640 mPictureDisplayedToJpegCallbackTime = 641 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 642 } else { 643 mShutterToPictureDisplayedTime = 644 mRawPictureCallbackTime - mShutterCallbackTime; 645 mPictureDisplayedToJpegCallbackTime = 646 mJpegPictureCallbackTime - mRawPictureCallbackTime; 647 } 648 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 649 + mPictureDisplayedToJpegCallbackTime + "ms"); 650 651 if (!mIsImageCaptureIntent) { 652 // We want to show the taken picture for a while, so we wait 653 // for at least 1.2 second before restarting the preview. 654 long delay = 1200 - mPictureDisplayedToJpegCallbackTime; 655 if (delay < 0) { 656 restartPreview(); 657 } else { 658 mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay); 659 } 660 } 661 mImageCapture.storeImage(jpegData, camera, mLocation); 662 663 // Calculate this in advance of each shot so we don't add to shutter 664 // latency. It's true that someone else could write to the SD card in 665 // the mean time and fill it, but that could have happened between the 666 // shutter press and saving the JPEG too. 667 calculatePicturesRemaining(); 668 } 669 } 670 671 private final class AutoFocusCallback 672 implements android.hardware.Camera.AutoFocusCallback { 673 public void onAutoFocus( 674 boolean focused, android.hardware.Camera camera) { 675 mFocusCallbackTime = System.currentTimeMillis(); 676 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 677 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 678 if (mFocusState == FOCUSING_SNAP_ON_FINISH) { 679 // Take the picture no matter focus succeeds or fails. No need 680 // to play the AF sound if we're about to play the shutter 681 // sound. 682 if (focused) { 683 mFocusState = FOCUS_SUCCESS; 684 } else { 685 mFocusState = FOCUS_FAIL; 686 } 687 mImageCapture.onSnap(); 688 } else if (mFocusState == FOCUSING) { 689 // User is half-pressing the focus key. Play the focus tone. 690 // Do not take the picture now. 691 ToneGenerator tg = mFocusToneGenerator; 692 if (tg != null) { 693 tg.startTone(ToneGenerator.TONE_PROP_BEEP2); 694 } 695 if (focused) { 696 mFocusState = FOCUS_SUCCESS; 697 } else { 698 mFocusState = FOCUS_FAIL; 699 } 700 } else if (mFocusState == FOCUS_NOT_STARTED) { 701 // User has released the focus key before focus completes. 702 // Do nothing. 703 } 704 updateFocusIndicator(); 705 } 706 } 707 708 private static final class ErrorCallback 709 implements android.hardware.Camera.ErrorCallback { 710 public void onError(int error, android.hardware.Camera camera) { 711 if (error == android.hardware.Camera.CAMERA_ERROR_SERVER_DIED) { 712 mMediaServerDied = true; 713 Log.v(TAG, "media server died"); 714 } 715 } 716 } 717 718 private final class ZoomCallback 719 implements android.hardware.Camera.ZoomCallback { 720 public void onZoomUpdate(int zoomValue, boolean stopped, 721 android.hardware.Camera camera) { 722 Log.v(TAG, "ZoomCallback: zoom value=" + zoomValue + ". stopped=" 723 + stopped); 724 mZoomValue = zoomValue; 725 // Keep mParameters up to date. We do not getParameter again in 726 // takePicture. If we do not do this, wrong zoom value will be set. 727 mParameters.setZoom(zoomValue); 728 // We only care if the zoom is stopped. mZooming is set to true when 729 // we start smooth zoom. 730 if (stopped) mZooming = false; 731 updateZoomButtonsEnabled(); 732 } 733 } 734 735 private class ImageCapture { 736 737 private boolean mCancel = false; 738 739 private Uri mLastContentUri; 740 741 byte[] mCaptureOnlyData; 742 743 // Returns the rotation degree in the jpeg header. 744 private int storeImage(byte[] data, Location loc) { 745 try { 746 long dateTaken = System.currentTimeMillis(); 747 String title = createName(dateTaken); 748 String filename = title + ".jpg"; 749 int[] degree = new int[1]; 750 mLastContentUri = ImageManager.addImage( 751 mContentResolver, 752 title, 753 dateTaken, 754 loc, // location from gps/network 755 ImageManager.CAMERA_IMAGE_BUCKET_NAME, filename, 756 null, data, 757 degree); 758 if (mLastContentUri == null) { 759 // this means we got an error 760 mCancel = true; 761 } 762 if (!mCancel) { 763 ImageManager.setImageSize(mContentResolver, mLastContentUri, 764 new File(ImageManager.CAMERA_IMAGE_BUCKET_NAME, 765 filename).length()); 766 } 767 return degree[0]; 768 } catch (Exception ex) { 769 Log.e(TAG, "Exception while compressing image.", ex); 770 return 0; 771 } 772 } 773 774 public void storeImage(final byte[] data, 775 android.hardware.Camera camera, Location loc) { 776 if (!mIsImageCaptureIntent) { 777 int degree = storeImage(data, loc); 778 sendBroadcast(new Intent( 779 "com.android.camera.NEW_PICTURE", mLastContentUri)); 780 setLastPictureThumb(data, degree, 781 mImageCapture.getLastCaptureUri()); 782 mThumbController.updateDisplayIfNeeded(); 783 } else { 784 mCaptureOnlyData = data; 785 showPostCaptureAlert(); 786 } 787 } 788 789 /** 790 * Initiate the capture of an image. 791 */ 792 public void initiate() { 793 if (mCameraDevice == null) { 794 return; 795 } 796 797 mCancel = false; 798 799 capture(); 800 } 801 802 public Uri getLastCaptureUri() { 803 return mLastContentUri; 804 } 805 806 public byte[] getLastCaptureData() { 807 return mCaptureOnlyData; 808 } 809 810 private void capture() { 811 mCaptureOnlyData = null; 812 813 // Set rotation. 814 mParameters.setRotation(mLastOrientation); 815 816 // Clear previous GPS location from the parameters. 817 mParameters.removeGpsData(); 818 819 // Set GPS location. 820 Location loc = mRecordLocation ? getCurrentLocation() : null; 821 if (loc != null) { 822 double lat = loc.getLatitude(); 823 double lon = loc.getLongitude(); 824 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 825 826 if (hasLatLon) { 827 mParameters.setGpsLatitude(lat); 828 mParameters.setGpsLongitude(lon); 829 if (loc.hasAltitude()) { 830 mParameters.setGpsAltitude(loc.getAltitude()); 831 } else { 832 // for NETWORK_PROVIDER location provider, we may have 833 // no altitude information, but the driver needs it, so 834 // we fake one. 835 mParameters.setGpsAltitude(0); 836 } 837 if (loc.getTime() != 0) { 838 // Location.getTime() is UTC in milliseconds. 839 // gps-timestamp is UTC in seconds. 840 long utcTimeSeconds = loc.getTime() / 1000; 841 mParameters.setGpsTimestamp(utcTimeSeconds); 842 } 843 } else { 844 loc = null; 845 } 846 } 847 848 mCameraDevice.setParameters(mParameters); 849 850 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 851 mPostViewPictureCallback, new JpegPictureCallback(loc)); 852 mPreviewing = false; 853 } 854 855 public void onSnap() { 856 // If we are already in the middle of taking a snapshot then ignore. 857 if (mPausing || mStatus == SNAPSHOT_IN_PROGRESS) { 858 return; 859 } 860 mCaptureStartTime = System.currentTimeMillis(); 861 mPostViewPictureCallbackTime = 0; 862 863 // Don't check the filesystem here, we can't afford the latency. 864 // Instead, check the cached value which was calculated when the 865 // preview was restarted. 866 if (mPicturesRemaining < 1) { 867 updateStorageHint(mPicturesRemaining); 868 return; 869 } 870 871 mStatus = SNAPSHOT_IN_PROGRESS; 872 873 mImageCapture.initiate(); 874 } 875 876 private void clearLastData() { 877 mCaptureOnlyData = null; 878 } 879 } 880 881 private boolean saveDataToFile(String filePath, byte[] data) { 882 FileOutputStream f = null; 883 try { 884 f = new FileOutputStream(filePath); 885 f.write(data); 886 } catch (IOException e) { 887 return false; 888 } finally { 889 MenuHelper.closeSilently(f); 890 } 891 return true; 892 } 893 894 private void setLastPictureThumb(byte[] data, int degree, Uri uri) { 895 BitmapFactory.Options options = new BitmapFactory.Options(); 896 options.inSampleSize = 16; 897 Bitmap lastPictureThumb = 898 BitmapFactory.decodeByteArray(data, 0, data.length, options); 899 lastPictureThumb = Util.rotate(lastPictureThumb, degree); 900 mThumbController.setData(uri, lastPictureThumb); 901 } 902 903 private String createName(long dateTaken) { 904 Date date = new Date(dateTaken); 905 SimpleDateFormat dateFormat = new SimpleDateFormat( 906 getString(R.string.image_file_name_format)); 907 908 return dateFormat.format(date); 909 } 910 911 @Override 912 public void onCreate(Bundle icicle) { 913 super.onCreate(icicle); 914 915 Window win = getWindow(); 916 win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 917 setContentView(R.layout.camera); 918 mSurfaceView = (SurfaceView) findViewById(R.id.camera_preview); 919 920 mPreferences = PreferenceManager.getDefaultSharedPreferences(this); 921 CameraSettings.upgradePreferences(mPreferences); 922 923 /* 924 * To reduce startup time, we start the preview in another thread. 925 * We make sure the preview is started at the end of onCreate. 926 */ 927 Thread startPreviewThread = new Thread(new Runnable() { 928 public void run() { 929 try { 930 mStartPreviewFail = false; 931 startPreview(); 932 } catch (CameraHardwareException e) { 933 // In eng build, we throw the exception so that test tool 934 // can detect it and report it 935 if ("eng".equals(Build.TYPE)) { 936 throw new RuntimeException(e); 937 } 938 mStartPreviewFail = true; 939 } 940 } 941 }); 942 startPreviewThread.start(); 943 944 // don't set mSurfaceHolder here. We have it set ONLY within 945 // surfaceChanged / surfaceDestroyed, other parts of the code 946 // assume that when it is set, the surface is also set. 947 SurfaceHolder holder = mSurfaceView.getHolder(); 948 holder.addCallback(this); 949 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 950 951 mIsImageCaptureIntent = isImageCaptureIntent(); 952 if (mIsImageCaptureIntent) { 953 setupCaptureParams(); 954 } 955 956 LayoutInflater inflater = getLayoutInflater(); 957 958 ViewGroup rootView = (ViewGroup) findViewById(R.id.camera); 959 if (mIsImageCaptureIntent) { 960 View controlBar = inflater.inflate( 961 R.layout.attach_camera_control, rootView); 962 controlBar.findViewById(R.id.btn_cancel).setOnClickListener(this); 963 controlBar.findViewById(R.id.btn_retake).setOnClickListener(this); 964 controlBar.findViewById(R.id.btn_done).setOnClickListener(this); 965 } else { 966 inflater.inflate(R.layout.camera_control, rootView); 967 mSwitcher = ((Switcher) findViewById(R.id.camera_switch)); 968 mSwitcher.setOnSwitchListener(this); 969 mSwitcher.addTouchView(findViewById(R.id.camera_switch_set)); 970 } 971 findViewById(R.id.btn_gripper) 972 .setOnTouchListener(new GripperTouchListener()); 973 974 mFlashIndicator = (IconIndicator) findViewById(R.id.flash_icon); 975 mFocusIndicator = (IconIndicator) findViewById(R.id.focus_icon); 976 mSceneModeIndicator = (IconIndicator) findViewById(R.id.scenemode_icon); 977 mWhitebalanceIndicator = 978 (IconIndicator) findViewById(R.id.whitebalance_icon); 979 980 // Make sure preview is started. 981 try { 982 startPreviewThread.join(); 983 if (mStartPreviewFail) { 984 showCameraErrorAndFinish(); 985 return; 986 } 987 } catch (InterruptedException ex) { 988 // ignore 989 } 990 removeUnsupportedIndicators(); 991 } 992 993 private void setOrientationIndicator(int degree) { 994 ((RotateImageView) findViewById( 995 R.id.review_thumbnail)).setDegree(degree); 996 ((RotateImageView) findViewById( 997 R.id.camera_switch_icon)).setDegree(degree); 998 ((RotateImageView) findViewById( 999 R.id.video_switch_icon)).setDegree(degree); 1000 } 1001 1002 private void removeUnsupportedIndicators() { 1003 if (mParameters.getSupportedFocusModes() == null) { 1004 mFocusIndicator.setVisibility(View.GONE); 1005 } 1006 1007 if (mParameters.getSupportedWhiteBalance() == null) { 1008 mWhitebalanceIndicator.setVisibility(View.GONE); 1009 } 1010 1011 if (mParameters.getSupportedFlashModes() == null) { 1012 mFlashIndicator.setVisibility(View.GONE); 1013 } 1014 1015 if (mParameters.getSupportedSceneModes() == null) { 1016 mSceneModeIndicator.setVisibility(View.GONE); 1017 } 1018 } 1019 1020 private class GripperTouchListener implements View.OnTouchListener { 1021 public boolean onTouch(View view, MotionEvent event) { 1022 switch (event.getAction()) { 1023 case MotionEvent.ACTION_DOWN: 1024 return true; 1025 case MotionEvent.ACTION_UP: 1026 showOnScreenSettings(); 1027 return true; 1028 } 1029 return false; 1030 } 1031 } 1032 1033 @Override 1034 public void onStart() { 1035 super.onStart(); 1036 if (!mIsImageCaptureIntent) { 1037 mSwitcher.setSwitch(SWITCH_CAMERA); 1038 } 1039 } 1040 1041 @Override 1042 public void onStop() { 1043 super.onStop(); 1044 if (mMediaProviderClient != null) { 1045 mMediaProviderClient.release(); 1046 mMediaProviderClient = null; 1047 } 1048 } 1049 1050 private void checkStorage() { 1051 if (ImageManager.isMediaScannerScanning(getContentResolver())) { 1052 mPicturesRemaining = MenuHelper.NO_STORAGE_ERROR; 1053 } else { 1054 calculatePicturesRemaining(); 1055 } 1056 updateStorageHint(mPicturesRemaining); 1057 } 1058 1059 1060 private void showOnScreenSettings() { 1061 if (mSettings == null) { 1062 mSettings = new OnScreenSettings( 1063 findViewById(R.id.camera_preview)); 1064 CameraSettings helper = 1065 new CameraSettings(this, mInitialParams); 1066 mSettings.setPreferenceScreen(helper 1067 .getPreferenceScreen(R.xml.camera_preferences)); 1068 mSettings.setOnVisibilityChangedListener(this); 1069 1070 String sceneMode = mParameters.getSceneMode(); 1071 if (sceneMode == null 1072 || Parameters.SCENE_MODE_AUTO.equals(sceneMode)) { 1073 // If scene mode is auto, cancel override in settings 1074 mSettings.overrideSettings(CameraSettings.KEY_FLASH_MODE, null); 1075 mSettings.overrideSettings(CameraSettings.KEY_FOCUS_MODE, null); 1076 mSettings.overrideSettings( 1077 CameraSettings.KEY_WHITE_BALANCE, null); 1078 } else { 1079 // If scene mode is not auto, override the value in settings 1080 mSettings.overrideSettings(CameraSettings.KEY_FLASH_MODE, 1081 mParameters.getFlashMode()); 1082 mSettings.overrideSettings(CameraSettings.KEY_FOCUS_MODE, 1083 mParameters.getFocusMode()); 1084 mSettings.overrideSettings(CameraSettings.KEY_WHITE_BALANCE, 1085 mParameters.getWhiteBalance()); 1086 } 1087 } 1088 mSettings.setVisible(true); 1089 } 1090 1091 public void onClick(View v) { 1092 switch (v.getId()) { 1093 case R.id.btn_retake: 1094 hidePostCaptureAlert(); 1095 restartPreview(); 1096 break; 1097 case R.id.review_thumbnail: 1098 if (isCameraIdle()) { 1099 viewLastImage(); 1100 } 1101 break; 1102 case R.id.btn_done: 1103 doAttach(); 1104 break; 1105 case R.id.btn_cancel: 1106 doCancel(); 1107 } 1108 } 1109 1110 private Bitmap createCaptureBitmap(byte[] data) { 1111 // This is really stupid...we just want to read the orientation in 1112 // the jpeg header. 1113 String filepath = ImageManager.getTempJpegPath(); 1114 int degree = 0; 1115 if (saveDataToFile(filepath, data)) { 1116 degree = ImageManager.getExifOrientation(filepath); 1117 new File(filepath).delete(); 1118 } 1119 1120 // Limit to 50k pixels so we can return it in the intent. 1121 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1122 bitmap = Util.rotate(bitmap, degree); 1123 return bitmap; 1124 } 1125 1126 private void doAttach() { 1127 if (mPausing) { 1128 return; 1129 } 1130 1131 byte[] data = mImageCapture.getLastCaptureData(); 1132 1133 if (mCropValue == null) { 1134 // First handle the no crop case -- just return the value. If the 1135 // caller specifies a "save uri" then write the data to it's 1136 // stream. Otherwise, pass back a scaled down version of the bitmap 1137 // directly in the extras. 1138 if (mSaveUri != null) { 1139 OutputStream outputStream = null; 1140 try { 1141 outputStream = mContentResolver.openOutputStream(mSaveUri); 1142 outputStream.write(data); 1143 outputStream.close(); 1144 1145 setResult(RESULT_OK); 1146 finish(); 1147 } catch (IOException ex) { 1148 // ignore exception 1149 } finally { 1150 Util.closeSilently(outputStream); 1151 } 1152 } else { 1153 Bitmap bitmap = createCaptureBitmap(data); 1154 setResult(RESULT_OK, 1155 new Intent("inline-data").putExtra("data", bitmap)); 1156 finish(); 1157 } 1158 } else { 1159 // Save the image to a temp file and invoke the cropper 1160 Uri tempUri = null; 1161 FileOutputStream tempStream = null; 1162 try { 1163 File path = getFileStreamPath(sTempCropFilename); 1164 path.delete(); 1165 tempStream = openFileOutput(sTempCropFilename, 0); 1166 tempStream.write(data); 1167 tempStream.close(); 1168 tempUri = Uri.fromFile(path); 1169 } catch (FileNotFoundException ex) { 1170 setResult(Activity.RESULT_CANCELED); 1171 finish(); 1172 return; 1173 } catch (IOException ex) { 1174 setResult(Activity.RESULT_CANCELED); 1175 finish(); 1176 return; 1177 } finally { 1178 Util.closeSilently(tempStream); 1179 } 1180 1181 Bundle newExtras = new Bundle(); 1182 if (mCropValue.equals("circle")) { 1183 newExtras.putString("circleCrop", "true"); 1184 } 1185 if (mSaveUri != null) { 1186 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1187 } else { 1188 newExtras.putBoolean("return-data", true); 1189 } 1190 1191 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1192 1193 cropIntent.setData(tempUri); 1194 cropIntent.putExtras(newExtras); 1195 1196 startActivityForResult(cropIntent, CROP_MSG); 1197 } 1198 } 1199 1200 private void doCancel() { 1201 setResult(RESULT_CANCELED, new Intent()); 1202 finish(); 1203 } 1204 1205 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1206 if (mPausing) { 1207 return; 1208 } 1209 switch (button.getId()) { 1210 case R.id.shutter_button: 1211 doFocus(pressed); 1212 break; 1213 } 1214 } 1215 1216 public void onShutterButtonClick(ShutterButton button) { 1217 if (mPausing) { 1218 return; 1219 } 1220 switch (button.getId()) { 1221 case R.id.shutter_button: 1222 doSnap(); 1223 break; 1224 } 1225 } 1226 1227 private OnScreenHint mStorageHint; 1228 1229 private void updateStorageHint(int remaining) { 1230 String noStorageText = null; 1231 1232 if (remaining == MenuHelper.NO_STORAGE_ERROR) { 1233 String state = Environment.getExternalStorageState(); 1234 if (state == Environment.MEDIA_CHECKING || 1235 ImageManager.isMediaScannerScanning(getContentResolver())) { 1236 noStorageText = getString(R.string.preparing_sd); 1237 } else { 1238 noStorageText = getString(R.string.no_storage); 1239 } 1240 } else if (remaining < 1) { 1241 noStorageText = getString(R.string.not_enough_space); 1242 } 1243 1244 if (noStorageText != null) { 1245 if (mStorageHint == null) { 1246 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1247 } else { 1248 mStorageHint.setText(noStorageText); 1249 } 1250 mStorageHint.show(); 1251 } else if (mStorageHint != null) { 1252 mStorageHint.cancel(); 1253 mStorageHint = null; 1254 } 1255 } 1256 1257 private void installIntentFilter() { 1258 // install an intent filter to receive SD card related events. 1259 IntentFilter intentFilter = 1260 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1261 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1262 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED); 1263 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1264 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1265 intentFilter.addDataScheme("file"); 1266 registerReceiver(mReceiver, intentFilter); 1267 mDidRegister = true; 1268 } 1269 1270 private void initializeFocusTone() { 1271 // Initialize focus tone generator. 1272 try { 1273 mFocusToneGenerator = new ToneGenerator( 1274 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1275 } catch (Throwable ex) { 1276 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1277 mFocusToneGenerator = null; 1278 } 1279 } 1280 1281 private void readPreference() { 1282 mRecordLocation = RecordLocationPreference.get( 1283 mPreferences, getContentResolver()); 1284 mFocusMode = mPreferences.getString( 1285 CameraSettings.KEY_FOCUS_MODE, 1286 getString(R.string.pref_camera_focusmode_default)); 1287 } 1288 1289 @Override 1290 public void onResume() { 1291 super.onResume(); 1292 1293 mPausing = false; 1294 mJpegPictureCallbackTime = 0; 1295 mZoomValue = 0; 1296 mImageCapture = new ImageCapture(); 1297 1298 // Start the preview if it is not started. 1299 if (!mPreviewing && !mStartPreviewFail) { 1300 try { 1301 startPreview(); 1302 } catch (CameraHardwareException e) { 1303 showCameraErrorAndFinish(); 1304 return; 1305 } 1306 } 1307 1308 if (mSurfaceHolder != null) { 1309 // If first time initialization is not finished, put it in the 1310 // message queue. 1311 if (!mFirstTimeInitialized) { 1312 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1313 } else { 1314 initializeSecondTime(); 1315 } 1316 } 1317 keepScreenOnAwhile(); 1318 } 1319 1320 private static ImageManager.DataLocation dataLocation() { 1321 return ImageManager.DataLocation.EXTERNAL; 1322 } 1323 1324 @Override 1325 protected void onPause() { 1326 mPausing = true; 1327 stopPreview(); 1328 // Close the camera now because other activities may need to use it. 1329 closeCamera(); 1330 resetScreenOn(); 1331 1332 if (mSettings != null && mSettings.isVisible()) { 1333 mSettings.setVisible(false); 1334 } 1335 1336 if (mFirstTimeInitialized) { 1337 mOrientationListener.disable(); 1338 mGpsIndicator.setMode(GPS_MODE_OFF); 1339 if (!mIsImageCaptureIntent) { 1340 mThumbController.storeData( 1341 ImageManager.getLastImageThumbPath()); 1342 } 1343 hidePostCaptureAlert(); 1344 } 1345 1346 if (mDidRegister) { 1347 unregisterReceiver(mReceiver); 1348 mDidRegister = false; 1349 } 1350 stopReceivingLocationUpdates(); 1351 1352 if (mFocusToneGenerator != null) { 1353 mFocusToneGenerator.release(); 1354 mFocusToneGenerator = null; 1355 } 1356 1357 if (mStorageHint != null) { 1358 mStorageHint.cancel(); 1359 mStorageHint = null; 1360 } 1361 1362 // If we are in an image capture intent and has taken 1363 // a picture, we just clear it in onPause. 1364 mImageCapture.clearLastData(); 1365 mImageCapture = null; 1366 1367 // This is necessary to make the ZoomButtonsController unregister 1368 // its configuration change receiver. 1369 if (mZoomButtons != null) { 1370 mZoomButtons.setVisible(false); 1371 } 1372 1373 // Remove the messages in the event queue. 1374 mHandler.removeMessages(RESTART_PREVIEW); 1375 mHandler.removeMessages(FIRST_TIME_INIT); 1376 1377 super.onPause(); 1378 } 1379 1380 @Override 1381 protected void onActivityResult( 1382 int requestCode, int resultCode, Intent data) { 1383 switch (requestCode) { 1384 case CROP_MSG: { 1385 Intent intent = new Intent(); 1386 if (data != null) { 1387 Bundle extras = data.getExtras(); 1388 if (extras != null) { 1389 intent.putExtras(extras); 1390 } 1391 } 1392 setResult(resultCode, intent); 1393 finish(); 1394 1395 File path = getFileStreamPath(sTempCropFilename); 1396 path.delete(); 1397 1398 break; 1399 } 1400 } 1401 } 1402 1403 private boolean canTakePicture() { 1404 return isCameraIdle() && mPreviewing && (mPicturesRemaining > 0); 1405 } 1406 1407 private void autoFocus() { 1408 // Initiate autofocus only when preview is started and snapshot is not 1409 // in progress. 1410 if (canTakePicture()) { 1411 Log.v(TAG, "Start autofocus."); 1412 if (mZoomButtons != null) mZoomButtons.setVisible(false); 1413 mFocusStartTime = System.currentTimeMillis(); 1414 mFocusState = FOCUSING; 1415 updateFocusIndicator(); 1416 mCameraDevice.autoFocus(mAutoFocusCallback); 1417 } 1418 } 1419 1420 private void cancelAutoFocus() { 1421 // User releases half-pressed focus key. 1422 if (mFocusState == FOCUSING || mFocusState == FOCUS_SUCCESS 1423 || mFocusState == FOCUS_FAIL) { 1424 Log.v(TAG, "Cancel autofocus."); 1425 mCameraDevice.cancelAutoFocus(); 1426 } 1427 if (mFocusState != FOCUSING_SNAP_ON_FINISH) { 1428 clearFocusState(); 1429 } 1430 } 1431 1432 private void clearFocusState() { 1433 mFocusState = FOCUS_NOT_STARTED; 1434 updateFocusIndicator(); 1435 } 1436 1437 private void updateFocusIndicator() { 1438 if (mFocusRectangle == null) return; 1439 1440 if (mFocusState == FOCUSING || mFocusState == FOCUSING_SNAP_ON_FINISH) { 1441 mFocusRectangle.showStart(); 1442 } else if (mFocusState == FOCUS_SUCCESS) { 1443 mFocusRectangle.showSuccess(); 1444 } else if (mFocusState == FOCUS_FAIL) { 1445 mFocusRectangle.showFail(); 1446 } else { 1447 mFocusRectangle.clear(); 1448 } 1449 } 1450 1451 @Override 1452 public void onBackPressed() { 1453 if (!isCameraIdle()) { 1454 // ignore backs while we're taking a picture 1455 return; 1456 } 1457 super.onBackPressed(); 1458 } 1459 1460 @Override 1461 public boolean onKeyDown(int keyCode, KeyEvent event) { 1462 switch (keyCode) { 1463 case KeyEvent.KEYCODE_FOCUS: 1464 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1465 doFocus(true); 1466 } 1467 return true; 1468 case KeyEvent.KEYCODE_CAMERA: 1469 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1470 doSnap(); 1471 } 1472 return true; 1473 case KeyEvent.KEYCODE_DPAD_CENTER: 1474 // If we get a dpad center event without any focused view, move 1475 // the focus to the shutter button and press it. 1476 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1477 // Start auto-focus immediately to reduce shutter lag. After 1478 // the shutter button gets the focus, doFocus() will be 1479 // called again but it is fine. 1480 doFocus(true); 1481 if (mShutterButton.isInTouchMode()) { 1482 mShutterButton.requestFocusFromTouch(); 1483 } else { 1484 mShutterButton.requestFocus(); 1485 } 1486 mShutterButton.setPressed(true); 1487 } 1488 return true; 1489 } 1490 1491 return super.onKeyDown(keyCode, event); 1492 } 1493 1494 @Override 1495 public boolean onKeyUp(int keyCode, KeyEvent event) { 1496 switch (keyCode) { 1497 case KeyEvent.KEYCODE_FOCUS: 1498 if (mFirstTimeInitialized) { 1499 doFocus(false); 1500 } 1501 return true; 1502 case KeyEvent.KEYCODE_MENU: 1503 if (mIsImageCaptureIntent) { 1504 showOnScreenSettings(); 1505 return true; 1506 } 1507 break; 1508 } 1509 return super.onKeyUp(keyCode, event); 1510 } 1511 1512 private void doSnap() { 1513 Log.v(TAG, "doSnap: mFocusState=" + mFocusState); 1514 // If the user has half-pressed the shutter and focus is completed, we 1515 // can take the photo right away. If the focus mode is infinity, we can 1516 // also take the photo. 1517 if (mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1518 || (mFocusState == FOCUS_SUCCESS 1519 || mFocusState == FOCUS_FAIL)) { 1520 if (mZoomButtons != null) mZoomButtons.setVisible(false); 1521 mImageCapture.onSnap(); 1522 } else if (mFocusState == FOCUSING) { 1523 // Half pressing the shutter (i.e. the focus button event) will 1524 // already have requested AF for us, so just request capture on 1525 // focus here. 1526 mFocusState = FOCUSING_SNAP_ON_FINISH; 1527 } else if (mFocusState == FOCUS_NOT_STARTED) { 1528 // Focus key down event is dropped for some reasons. Just ignore. 1529 } 1530 } 1531 1532 private void doFocus(boolean pressed) { 1533 // Do the focus if the mode is not infinity. 1534 if (!mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY)) { 1535 if (pressed) { // Focus key down. 1536 autoFocus(); 1537 } else { // Focus key up. 1538 cancelAutoFocus(); 1539 } 1540 } 1541 } 1542 1543 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1544 // Make sure we have a surface in the holder before proceeding. 1545 if (holder.getSurface() == null) { 1546 Log.d(TAG, "holder.getSurface() == null"); 1547 return; 1548 } 1549 1550 // We need to save the holder for later use, even when the mCameraDevice 1551 // is null. This could happen if onResume() is invoked after this 1552 // function. 1553 mSurfaceHolder = holder; 1554 1555 // The mCameraDevice will be null if it fails to connect to the camera 1556 // hardware. In this case we will show a dialog and then finish the 1557 // activity, so it's OK to ignore it. 1558 if (mCameraDevice == null) return; 1559 1560 // Sometimes surfaceChanged is called after onPause or before onResume. 1561 // Ignore it. 1562 if (mPausing || isFinishing()) return; 1563 1564 if (mPreviewing && holder.isCreating()) { 1565 // Set preview display if the surface is being created and preview 1566 // was already started. That means preview display was set to null 1567 // and we need to set it now. 1568 setPreviewDisplay(holder); 1569 } else { 1570 // 1. Restart the preview if the size of surface was changed. The 1571 // framework may not support changing preview display on the fly. 1572 // 2. Start the preview now if surface was destroyed and preview 1573 // stopped. 1574 restartPreview(); 1575 } 1576 1577 // If first time initialization is not finished, send a message to do 1578 // it later. We want to finish surfaceChanged as soon as possible to let 1579 // user see preview first. 1580 if (!mFirstTimeInitialized) { 1581 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1582 } else { 1583 initializeSecondTime(); 1584 } 1585 } 1586 1587 public void surfaceCreated(SurfaceHolder holder) { 1588 } 1589 1590 public void surfaceDestroyed(SurfaceHolder holder) { 1591 stopPreview(); 1592 mSurfaceHolder = null; 1593 } 1594 1595 private void closeCamera() { 1596 if (mCameraDevice != null) { 1597 CameraHolder.instance().release(); 1598 if (mZoomButtons != null) mCameraDevice.setZoomCallback(null); 1599 mCameraDevice = null; 1600 mPreviewing = false; 1601 } 1602 } 1603 1604 private void ensureCameraDevice() throws CameraHardwareException { 1605 if (mCameraDevice == null) { 1606 mCameraDevice = CameraHolder.instance().open(); 1607 mInitialParams = mCameraDevice.getParameters(); 1608 } 1609 } 1610 1611 private void updateLastImage() { 1612 IImageList list = ImageManager.makeImageList( 1613 mContentResolver, 1614 dataLocation(), 1615 ImageManager.INCLUDE_IMAGES, 1616 ImageManager.SORT_ASCENDING, 1617 ImageManager.CAMERA_IMAGE_BUCKET_ID); 1618 int count = list.getCount(); 1619 if (count > 0) { 1620 IImage image = list.getImageAt(count - 1); 1621 Uri uri = image.fullSizeImageUri(); 1622 mThumbController.setData(uri, image.miniThumbBitmap()); 1623 } else { 1624 mThumbController.setData(null, null); 1625 } 1626 list.close(); 1627 } 1628 1629 private void showCameraErrorAndFinish() { 1630 Resources ress = getResources(); 1631 Util.showFatalErrorAndFinish(Camera.this, 1632 ress.getString(R.string.camera_error_title), 1633 ress.getString(R.string.cannot_connect_camera)); 1634 } 1635 1636 private void restartPreview() { 1637 try { 1638 startPreview(); 1639 } catch (CameraHardwareException e) { 1640 showCameraErrorAndFinish(); 1641 return; 1642 } 1643 } 1644 1645 private void setPreviewDisplay(SurfaceHolder holder) { 1646 try { 1647 mCameraDevice.setPreviewDisplay(holder); 1648 } catch (Throwable ex) { 1649 closeCamera(); 1650 throw new RuntimeException("setPreviewDisplay failed", ex); 1651 } 1652 } 1653 1654 private void startPreview() throws CameraHardwareException { 1655 if (mPausing || isFinishing()) return; 1656 1657 ensureCameraDevice(); 1658 1659 // If we're previewing already, stop the preview first (this will blank 1660 // the screen). 1661 if (mPreviewing) stopPreview(); 1662 1663 setPreviewDisplay(mSurfaceHolder); 1664 setCameraParameters(); 1665 1666 final long wallTimeStart = SystemClock.elapsedRealtime(); 1667 final long threadTimeStart = Debug.threadCpuTimeNanos(); 1668 1669 // Set one shot preview callback for latency measurement. 1670 mCameraDevice.setOneShotPreviewCallback(mOneShotPreviewCallback); 1671 mCameraDevice.setErrorCallback(mErrorCallback); 1672 1673 try { 1674 Log.v(TAG, "startPreview"); 1675 mCameraDevice.startPreview(); 1676 } catch (Throwable ex) { 1677 closeCamera(); 1678 throw new RuntimeException("startPreview failed", ex); 1679 } 1680 mPreviewing = true; 1681 mZooming = false; 1682 mStatus = IDLE; 1683 1684 long threadTimeEnd = Debug.threadCpuTimeNanos(); 1685 long wallTimeEnd = SystemClock.elapsedRealtime(); 1686 if ((wallTimeEnd - wallTimeStart) > 3000) { 1687 Log.w(TAG, "startPreview() to " + (wallTimeEnd - wallTimeStart) 1688 + " ms. Thread time was" 1689 + (threadTimeEnd - threadTimeStart) / 1000000 + " ms."); 1690 } 1691 } 1692 1693 private void stopPreview() { 1694 if (mCameraDevice != null && mPreviewing) { 1695 Log.v(TAG, "stopPreview"); 1696 mCameraDevice.stopPreview(); 1697 } 1698 mPreviewing = false; 1699 // If auto focus was in progress, it would have been canceled. 1700 clearFocusState(); 1701 } 1702 1703 private Size getOptimalPreviewSize(List<Size> sizes, double targetRatio) { 1704 final double ASPECT_TOLERANCE = 0.05; 1705 if (sizes == null) return null; 1706 1707 Size optimalSize = null; 1708 double minDiff = Double.MAX_VALUE; 1709 1710 // Because of bugs of overlay and layout, we sometimes will try to 1711 // layout the viewfinder in the portrait orientation and thus get the 1712 // wrong size of mSurfaceView. When we change the preview size, the 1713 // new overlay will be created before the old one closed, which causes 1714 // an exception. For now, just get the screen size 1715 1716 Display display = getWindowManager().getDefaultDisplay(); 1717 int targetHeight = Math.min(display.getHeight(), display.getWidth()); 1718 1719 if (targetHeight <= 0) { 1720 // We don't know the size of SurefaceView, use screen height 1721 WindowManager windowManager = (WindowManager) 1722 getSystemService(Context.WINDOW_SERVICE); 1723 targetHeight = windowManager.getDefaultDisplay().getHeight(); 1724 } 1725 1726 // Try to find an size match aspect ratio and size 1727 for (Size size : sizes) { 1728 double ratio = (double) size.width / size.height; 1729 if (Math.abs(ratio - targetRatio) > ASPECT_TOLERANCE) continue; 1730 if (Math.abs(size.height - targetHeight) < minDiff) { 1731 optimalSize = size; 1732 minDiff = Math.abs(size.height - targetHeight); 1733 } 1734 } 1735 1736 // Cannot find the one match the aspect ratio, ignore the requirement 1737 if (optimalSize == null) { 1738 Log.v(TAG, "No preview size match the aspect ratio"); 1739 minDiff = Double.MAX_VALUE; 1740 for (Size size : sizes) { 1741 if (Math.abs(size.height - targetHeight) < minDiff) { 1742 optimalSize = size; 1743 minDiff = Math.abs(size.height - targetHeight); 1744 } 1745 } 1746 } 1747 Log.v(TAG, String.format( 1748 "Optimal preview size is %sx%s", 1749 optimalSize.width, optimalSize.height)); 1750 return optimalSize; 1751 } 1752 1753 private static boolean isSupported(String value, List<String> supported) { 1754 return supported == null ? false : supported.indexOf(value) >= 0; 1755 } 1756 1757 private void setCameraParameters() { 1758 mParameters = mCameraDevice.getParameters(); 1759 1760 // Since change scene mode may change supported values, 1761 // Set scene mode first, 1762 String sceneMode = mPreferences.getString( 1763 CameraSettings.KEY_SCENE_MODE, 1764 getString(R.string.pref_camera_scenemode_default)); 1765 if (isSupported(sceneMode, mParameters.getSupportedSceneModes())) { 1766 if (!mParameters.getSceneMode().equals(sceneMode)) { 1767 mParameters.setSceneMode(sceneMode); 1768 mCameraDevice.setParameters(mParameters); 1769 1770 // Setting scene mode will change the settings of flash mode, 1771 // white balance, and focus mode. Here we read back the 1772 // parameters, so we can know those settings. 1773 mParameters = mCameraDevice.getParameters(); 1774 } 1775 } else { 1776 sceneMode = mParameters.getSceneMode(); 1777 if (sceneMode == null) { 1778 sceneMode = Parameters.SCENE_MODE_AUTO; 1779 } 1780 } 1781 1782 // Reset preview frame rate to the maximum because it may be lowered by 1783 // video camera application. 1784 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1785 if (frameRates != null) { 1786 Integer max = Collections.max(frameRates); 1787 mParameters.setPreviewFrameRate(max); 1788 } 1789 1790 // Set picture size. 1791 String pictureSize = mPreferences.getString( 1792 CameraSettings.KEY_PICTURE_SIZE, null); 1793 if (pictureSize == null) { 1794 CameraSettings.initialCameraPictureSize(this, mParameters); 1795 } else { 1796 List<Size> supported = mParameters.getSupportedPictureSizes(); 1797 CameraSettings.setCameraPictureSize( 1798 pictureSize, supported, mParameters); 1799 } 1800 1801 // Set the preview frame aspect ratio according to the picture size. 1802 Size size = mParameters.getPictureSize(); 1803 PreviewFrameLayout frameLayout = 1804 (PreviewFrameLayout) findViewById(R.id.frame_layout); 1805 frameLayout.setAspectRatio((double) size.width / size.height); 1806 1807 // Set a preview size that is closest to the viewfinder height and has 1808 // the right aspect ratio. 1809 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1810 Size optimalSize = getOptimalPreviewSize( 1811 sizes, (double) size.width / size.height); 1812 if (optimalSize != null) { 1813 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1814 } 1815 1816 // Set JPEG quality. 1817 String jpegQuality = mPreferences.getString( 1818 CameraSettings.KEY_JPEG_QUALITY, 1819 getString(R.string.pref_camera_jpegquality_default)); 1820 mParameters.setJpegQuality(getQualityNumber(jpegQuality)); 1821 1822 // Set zoom. 1823 if (mParameters.isZoomSupported()) { 1824 mParameters.setZoom(mZoomValue); 1825 } 1826 1827 // For the following settings, we need to check if the settings are 1828 // still supported by latest driver, if not, ignore the settings. 1829 1830 // Set color effect parameter. 1831 String colorEffect = mPreferences.getString( 1832 CameraSettings.KEY_COLOR_EFFECT, 1833 getString(R.string.pref_camera_coloreffect_default)); 1834 if (isSupported(colorEffect, mParameters.getSupportedColorEffects())) { 1835 mParameters.setColorEffect(colorEffect); 1836 } 1837 1838 // If scene mode is set, we cannot set flash mode, white balance, and 1839 // focus mode, instead, we read it from driver 1840 String flashMode; 1841 String whiteBalance; 1842 if (!Parameters.SCENE_MODE_AUTO.equals(sceneMode)) { 1843 flashMode = mParameters.getFlashMode(); 1844 whiteBalance = mParameters.getWhiteBalance(); 1845 mFocusMode = mParameters.getFocusMode(); 1846 if (mSettings != null) { 1847 mSettings.overrideSettings( 1848 CameraSettings.KEY_FLASH_MODE, flashMode); 1849 mSettings.overrideSettings( 1850 CameraSettings.KEY_WHITE_BALANCE, whiteBalance); 1851 mSettings.overrideSettings( 1852 CameraSettings.KEY_FOCUS_MODE, mFocusMode); 1853 } 1854 } else { 1855 if (mSettings != null) { 1856 mSettings.overrideSettings(CameraSettings.KEY_FLASH_MODE, null); 1857 mSettings.overrideSettings(CameraSettings.KEY_FOCUS_MODE, null); 1858 mSettings.overrideSettings( 1859 CameraSettings.KEY_WHITE_BALANCE, null); 1860 } 1861 1862 // Set flash mode. 1863 flashMode = mPreferences.getString( 1864 CameraSettings.KEY_FLASH_MODE, 1865 getString(R.string.pref_camera_flashmode_default)); 1866 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 1867 if (isSupported(flashMode, supportedFlash)) { 1868 mParameters.setFlashMode(flashMode); 1869 } else { 1870 flashMode = mParameters.getFlashMode(); 1871 if (flashMode == null) { 1872 flashMode = getString( 1873 R.string.pref_camera_flashmode_no_flash); 1874 } 1875 } 1876 1877 // Set white balance parameter. 1878 whiteBalance = mPreferences.getString( 1879 CameraSettings.KEY_WHITE_BALANCE, 1880 getString(R.string.pref_camera_whitebalance_default)); 1881 if (isSupported(whiteBalance, 1882 mParameters.getSupportedWhiteBalance())) { 1883 mParameters.setWhiteBalance(whiteBalance); 1884 } else { 1885 whiteBalance = mParameters.getWhiteBalance(); 1886 if (whiteBalance == null) { 1887 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 1888 } 1889 } 1890 1891 // Set focus mode. 1892 mFocusMode = mPreferences.getString( 1893 CameraSettings.KEY_FOCUS_MODE, 1894 getString(R.string.pref_camera_focusmode_default)); 1895 if (isSupported(mFocusMode, mParameters.getSupportedFocusModes())) { 1896 mParameters.setFocusMode(mFocusMode); 1897 } else { 1898 mFocusMode = mParameters.getFocusMode(); 1899 if (mFocusMode == null) { 1900 mFocusMode = Parameters.FOCUS_MODE_AUTO; 1901 } 1902 } 1903 1904 mCameraDevice.setParameters(mParameters); 1905 } 1906 1907 // We post the runner because this function can be called from 1908 // non-UI thread (i.e., startPreviewThread). 1909 final String finalWhiteBalance = whiteBalance; 1910 final String finalFlashMode = flashMode; 1911 final String finalSceneMode = 1912 Parameters.SCENE_MODE_AUTO.equals(sceneMode) 1913 ? SCENE_MODE_OFF 1914 : SCENE_MODE_ON; 1915 1916 mHandler.post(new Runnable() { 1917 public void run() { 1918 mFocusIndicator.setMode(mFocusMode); 1919 mWhitebalanceIndicator.setMode(finalWhiteBalance); 1920 mSceneModeIndicator.setMode(finalSceneMode); 1921 mFlashIndicator.setMode(finalFlashMode); 1922 } 1923 }); 1924 } 1925 1926 private void gotoGallery() { 1927 MenuHelper.gotoCameraImageGallery(this); 1928 } 1929 1930 private void viewLastImage() { 1931 if (mThumbController.isUriValid()) { 1932 Uri targetUri = mThumbController.getUri(); 1933 targetUri = targetUri.buildUpon().appendQueryParameter( 1934 "bucketId", ImageManager.CAMERA_IMAGE_BUCKET_ID).build(); 1935 Intent intent = new Intent(this, ReviewImage.class); 1936 intent.setData(targetUri); 1937 intent.putExtra(MediaStore.EXTRA_FULL_SCREEN, true); 1938 intent.putExtra(MediaStore.EXTRA_SHOW_ACTION_ICONS, true); 1939 intent.putExtra("com.android.camera.ReviewMode", true); 1940 try { 1941 startActivity(intent); 1942 } catch (ActivityNotFoundException ex) { 1943 Log.e(TAG, "review image fail", ex); 1944 } 1945 } else { 1946 Log.e(TAG, "Can't view last image."); 1947 } 1948 } 1949 1950 private void startReceivingLocationUpdates() { 1951 if (mLocationManager != null) { 1952 try { 1953 mLocationManager.requestLocationUpdates( 1954 LocationManager.NETWORK_PROVIDER, 1955 1000, 1956 0F, 1957 mLocationListeners[1]); 1958 } catch (java.lang.SecurityException ex) { 1959 Log.i(TAG, "fail to request location update, ignore", ex); 1960 } catch (IllegalArgumentException ex) { 1961 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1962 } 1963 try { 1964 mLocationManager.requestLocationUpdates( 1965 LocationManager.GPS_PROVIDER, 1966 1000, 1967 0F, 1968 mLocationListeners[0]); 1969 } catch (java.lang.SecurityException ex) { 1970 Log.i(TAG, "fail to request location update, ignore", ex); 1971 } catch (IllegalArgumentException ex) { 1972 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1973 } 1974 } 1975 } 1976 1977 private void stopReceivingLocationUpdates() { 1978 if (mLocationManager != null) { 1979 for (int i = 0; i < mLocationListeners.length; i++) { 1980 try { 1981 mLocationManager.removeUpdates(mLocationListeners[i]); 1982 } catch (Exception ex) { 1983 Log.i(TAG, "fail to remove location listners, ignore", ex); 1984 } 1985 } 1986 } 1987 } 1988 1989 private Location getCurrentLocation() { 1990 // go in best to worst order 1991 for (int i = 0; i < mLocationListeners.length; i++) { 1992 Location l = mLocationListeners[i].current(); 1993 if (l != null) return l; 1994 } 1995 return null; 1996 } 1997 1998 private boolean isCameraIdle() { 1999 return mStatus == IDLE && mFocusState == FOCUS_NOT_STARTED; 2000 } 2001 2002 private boolean isImageCaptureIntent() { 2003 String action = getIntent().getAction(); 2004 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 2005 } 2006 2007 private void setupCaptureParams() { 2008 Bundle myExtras = getIntent().getExtras(); 2009 if (myExtras != null) { 2010 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 2011 mCropValue = myExtras.getString("crop"); 2012 } 2013 } 2014 2015 private void showPostCaptureAlert() { 2016 if (mIsImageCaptureIntent) { 2017 findViewById(R.id.shutter_button).setVisibility(View.INVISIBLE); 2018 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2019 for (int id : pickIds) { 2020 View button = findViewById(id); 2021 ((View) button.getParent()).setVisibility(View.VISIBLE); 2022 } 2023 } 2024 } 2025 2026 private void hidePostCaptureAlert() { 2027 if (mIsImageCaptureIntent) { 2028 findViewById(R.id.shutter_button).setVisibility(View.VISIBLE); 2029 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2030 for (int id : pickIds) { 2031 View button = findViewById(id); 2032 ((View) button.getParent()).setVisibility(View.GONE); 2033 } 2034 } 2035 } 2036 2037 private int calculatePicturesRemaining() { 2038 mPicturesRemaining = MenuHelper.calculatePicturesRemaining(); 2039 return mPicturesRemaining; 2040 } 2041 2042 @Override 2043 public boolean onPrepareOptionsMenu(Menu menu) { 2044 super.onPrepareOptionsMenu(menu); 2045 // Only show the menu when camera is idle. 2046 for (int i = 0; i < menu.size(); i++) { 2047 menu.getItem(i).setVisible(isCameraIdle()); 2048 } 2049 2050 return true; 2051 } 2052 2053 @Override 2054 public boolean onCreateOptionsMenu(Menu menu) { 2055 super.onCreateOptionsMenu(menu); 2056 2057 if (mIsImageCaptureIntent) { 2058 // No options menu for attach mode. 2059 return false; 2060 } else { 2061 addBaseMenuItems(menu); 2062 } 2063 return true; 2064 } 2065 2066 private void addBaseMenuItems(Menu menu) { 2067 MenuItem gallery = menu.add(Menu.NONE, Menu.NONE, 2068 MenuHelper.POSITION_GOTO_GALLERY, 2069 R.string.camera_gallery_photos_text) 2070 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2071 public boolean onMenuItemClick(MenuItem item) { 2072 gotoGallery(); 2073 return true; 2074 } 2075 }); 2076 gallery.setIcon(android.R.drawable.ic_menu_gallery); 2077 mGalleryItems.add(gallery); 2078 2079 MenuItem item = menu.add(Menu.NONE, Menu.NONE, 2080 MenuHelper.POSITION_CAMERA_SETTING, R.string.settings) 2081 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2082 public boolean onMenuItemClick(MenuItem item) { 2083 showOnScreenSettings(); 2084 return true; 2085 } 2086 }); 2087 item.setIcon(android.R.drawable.ic_menu_preferences); 2088 } 2089 2090 public boolean onSwitchChanged(Switcher source, boolean onOff) { 2091 if (onOff == SWITCH_VIDEO) { 2092 if (!isCameraIdle()) return false; 2093 MenuHelper.gotoVideoMode(this); 2094 finish(); 2095 } 2096 return true; 2097 } 2098 2099 public void onSharedPreferenceChanged( 2100 SharedPreferences preferences, String key) { 2101 // ignore the events after "onPause()" 2102 if (mPausing) return; 2103 2104 if (CameraSettings.KEY_RECORD_LOCATION.equals(key)) { 2105 mRecordLocation = RecordLocationPreference.get( 2106 preferences, getContentResolver()); 2107 if (mRecordLocation) { 2108 startReceivingLocationUpdates(); 2109 } else { 2110 stopReceivingLocationUpdates(); 2111 } 2112 } else { 2113 // All preferences except RECORD_LOCATION are camera parameters. 2114 // Call setCameraParameters to take effect now. 2115 setCameraParameters(); 2116 } 2117 } 2118 2119 @Override 2120 public void onUserInteraction() { 2121 super.onUserInteraction(); 2122 keepScreenOnAwhile(); 2123 } 2124 2125 private void resetScreenOn() { 2126 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2127 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2128 } 2129 2130 private void keepScreenOnAwhile() { 2131 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2132 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2133 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2134 } 2135 2136 private static String[] mQualityStrings = {"superfine", "fine", "normal"}; 2137 private static String[] mQualityNumbers = SystemProperties.get( 2138 "ro.media.enc.jpeg.quality", "85,75,65").split(","); 2139 private static int DEFAULT_QUALITY = 85; 2140 2141 // Translate from a quality string to a quality number using the system 2142 // properties. 2143 private static int getQualityNumber(String jpegQuality) { 2144 // Find the index of the input string 2145 int index = Util.indexOf(mQualityStrings, jpegQuality); 2146 2147 if (index == -1 || index > mQualityNumbers.length - 1) { 2148 return DEFAULT_QUALITY; 2149 } 2150 2151 try { 2152 return Integer.parseInt(mQualityNumbers[index]); 2153 } catch (NumberFormatException ex) { 2154 return DEFAULT_QUALITY; 2155 } 2156 } 2157} 2158 2159class FocusRectangle extends View { 2160 2161 @SuppressWarnings("unused") 2162 private static final String TAG = "FocusRectangle"; 2163 2164 public FocusRectangle(Context context, AttributeSet attrs) { 2165 super(context, attrs); 2166 } 2167 2168 private void setDrawable(int resid) { 2169 setBackgroundDrawable(getResources().getDrawable(resid)); 2170 } 2171 2172 public void showStart() { 2173 setDrawable(R.drawable.focus_focusing); 2174 } 2175 2176 public void showSuccess() { 2177 setDrawable(R.drawable.focus_focused); 2178 } 2179 2180 public void showFail() { 2181 setDrawable(R.drawable.focus_focus_failed); 2182 } 2183 2184 public void clear() { 2185 setBackgroundDrawable(null); 2186 } 2187} 2188