Camera.java revision ca99fb07777edcde4c9159c1567b95a227e916fa
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.ContentResolver; 23import android.content.Context; 24import android.content.Intent; 25import android.content.IntentFilter; 26import android.content.SharedPreferences; 27import android.content.SharedPreferences.OnSharedPreferenceChangeListener; 28import android.content.res.Resources; 29import android.graphics.Bitmap; 30import android.graphics.BitmapFactory; 31import android.hardware.Camera.Parameters; 32import android.hardware.Camera.PictureCallback; 33import android.hardware.Camera.Size; 34import android.location.Location; 35import android.location.LocationManager; 36import android.location.LocationProvider; 37import android.media.AudioManager; 38import android.media.ToneGenerator; 39import android.net.Uri; 40import android.os.Build; 41import android.os.Bundle; 42import android.os.Debug; 43import android.os.Environment; 44import android.os.Handler; 45import android.os.Message; 46import android.os.SystemClock; 47import android.os.SystemProperties; 48import android.preference.PreferenceManager; 49import android.provider.MediaStore; 50import android.text.format.DateFormat; 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.util.ArrayList; 80import java.util.Collections; 81import java.util.List; 82 83/** The Camera activity which can preview and take pictures. */ 84public class Camera extends NoSearchActivity implements View.OnClickListener, 85 ShutterButton.OnShutterButtonListener, SurfaceHolder.Callback, 86 Switcher.OnSwitchListener, OnScreenSettings.OnVisibilityChangedListener, 87 OnSharedPreferenceChangeListener { 88 89 private static final String TAG = "camera"; 90 91 // This value must be as same as the item value of the string array 92 // "flash_mode" in file "res/values/arrays.xml". 93 private static final String NO_FLASH_MODE = "no_flash"; 94 private static final int CROP_MSG = 1; 95 private static final int FIRST_TIME_INIT = 2; 96 private static final int RESTART_PREVIEW = 3; 97 private static final int CLEAR_SCREEN_DELAY = 4; 98 99 private static final String GPS_MODE_ON = "on"; 100 private static final String GPS_MODE_OFF = "off"; 101 102 private static final int SCREEN_DELAY = 2 * 60 * 1000; 103 private static final int FOCUS_BEEP_VOLUME = 100; 104 105 private static final String SCENE_MODE_ON = "on"; 106 private static final String SCENE_MODE_OFF = "off"; 107 108 private boolean mZooming = false; 109 private boolean mSmoothZoomSupported = false; 110 private int mZoomValue; // The current zoom value. 111 private int mZoomMax; 112 113 private Parameters mParameters; 114 private Parameters mInitialParams; 115 116 private OrientationEventListener mOrientationListener; 117 private int mLastOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 118 private SharedPreferences mPreferences; 119 120 private static final int IDLE = 1; 121 private static final int SNAPSHOT_IN_PROGRESS = 2; 122 123 private static final boolean SWITCH_CAMERA = true; 124 private static final boolean SWITCH_VIDEO = false; 125 126 private int mStatus = IDLE; 127 private static final String sTempCropFilename = "crop-temp"; 128 129 private android.hardware.Camera mCameraDevice; 130 private SurfaceView mSurfaceView; 131 private SurfaceHolder mSurfaceHolder = null; 132 private ShutterButton mShutterButton; 133 private FocusRectangle mFocusRectangle; 134 private IconIndicator mGpsIndicator; 135 private IconIndicator mFlashIndicator; 136 private IconIndicator mFocusIndicator; 137 private IconIndicator mWhitebalanceIndicator; 138 private IconIndicator mSceneModeIndicator; 139 private ToneGenerator mFocusToneGenerator; 140 private ZoomButtonsController mZoomButtons; 141 private GestureDetector mGestureDetector; 142 private Switcher mSwitcher; 143 private boolean mStartPreviewFail = false; 144 145 // mPostCaptureAlert, mLastPictureButton, mThumbController 146 // are non-null only if isImageCaptureIntent() is true. 147 private ImageView mLastPictureButton; 148 private ThumbnailController mThumbController; 149 150 // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. 151 private String mCropValue; 152 private Uri mSaveUri; 153 154 private ImageCapture mImageCapture = null; 155 156 private boolean mPreviewing; 157 private boolean mPausing; 158 private boolean mFirstTimeInitialized; 159 private boolean mIsImageCaptureIntent; 160 private boolean mRecordLocation; 161 162 private static final int FOCUS_NOT_STARTED = 0; 163 private static final int FOCUSING = 1; 164 private static final int FOCUSING_SNAP_ON_FINISH = 2; 165 private static final int FOCUS_SUCCESS = 3; 166 private static final int FOCUS_FAIL = 4; 167 private int mFocusState = FOCUS_NOT_STARTED; 168 169 private ContentResolver mContentResolver; 170 private boolean mDidRegister = false; 171 172 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 173 174 private LocationManager mLocationManager = null; 175 176 // Use OneShotPreviewCallback to measure the time between 177 // JpegPictureCallback and preview. 178 private final OneShotPreviewCallback mOneShotPreviewCallback = 179 new OneShotPreviewCallback(); 180 private final ShutterCallback mShutterCallback = new ShutterCallback(); 181 private final RawPictureCallback mRawPictureCallback = 182 new RawPictureCallback(); 183 private final AutoFocusCallback mAutoFocusCallback = 184 new AutoFocusCallback(); 185 private final ZoomCallback mZoomCallback = new ZoomCallback(); 186 // Use the ErrorCallback to capture the crash count 187 // on the mediaserver 188 private final ErrorCallback mErrorCallback = new ErrorCallback(); 189 190 private long mFocusStartTime; 191 private long mFocusCallbackTime; 192 private long mCaptureStartTime; 193 private long mShutterCallbackTime; 194 private long mRawPictureCallbackTime; 195 private long mJpegPictureCallbackTime; 196 private int mPicturesRemaining; 197 198 // These latency time are for the CameraLatency test. 199 public long mAutoFocusTime; 200 public long mShutterLag; 201 public long mShutterAndRawPictureCallbackTime; 202 public long mJpegPictureCallbackTimeLag; 203 public long mRawPictureAndJpegPictureCallbackTime; 204 205 // Add the media server tag 206 public static boolean mMediaServerDied = false; 207 // Focus mode. Options are pref_camera_focusmode_entryvalues. 208 private String mFocusMode; 209 210 private final Handler mHandler = new MainHandler(); 211 private OnScreenSettings mSettings; 212 213 /** 214 * This Handler is used to post message back onto the main thread of the 215 * application 216 */ 217 private class MainHandler extends Handler { 218 @Override 219 public void handleMessage(Message msg) { 220 switch (msg.what) { 221 case RESTART_PREVIEW: { 222 restartPreview(); 223 break; 224 } 225 226 case CLEAR_SCREEN_DELAY: { 227 getWindow().clearFlags( 228 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 229 break; 230 } 231 232 case FIRST_TIME_INIT: { 233 initializeFirstTime(); 234 break; 235 } 236 } 237 } 238 } 239 240 // Snapshots can only be taken after this is called. It should be called 241 // once only. We could have done these things in onCreate() but we want to 242 // make preview screen appear as soon as possible. 243 private void initializeFirstTime() { 244 if (mFirstTimeInitialized) return; 245 246 // Create orientation listenter. This should be done first because it 247 // takes some time to get first orientation. 248 mOrientationListener = 249 new OrientationEventListener(Camera.this) { 250 @Override 251 public void onOrientationChanged(int orientation) { 252 // We keep the last known orientation. So if the user 253 // first orient the camera then point the camera to 254 // floor/sky, we still have the correct orientation. 255 if (orientation != ORIENTATION_UNKNOWN) { 256 mLastOrientation = orientation; 257 } 258 } 259 }; 260 mOrientationListener.enable(); 261 262 // Initialize location sevice. 263 mLocationManager = (LocationManager) 264 getSystemService(Context.LOCATION_SERVICE); 265 readPreference(); 266 if (mRecordLocation) startReceivingLocationUpdates(); 267 268 checkStorage(); 269 270 // Initialize last picture button. 271 mContentResolver = getContentResolver(); 272 if (!mIsImageCaptureIntent) { 273 findViewById(R.id.camera_switch).setOnClickListener(this); 274 mLastPictureButton = 275 (ImageView) findViewById(R.id.review_thumbnail); 276 mLastPictureButton.setOnClickListener(this); 277 mThumbController = new ThumbnailController( 278 getResources(), mLastPictureButton, mContentResolver); 279 mThumbController.loadData(ImageManager.getLastImageThumbPath()); 280 // Update last image thumbnail. 281 updateThumbnailButton(); 282 } 283 284 // Initialize shutter button. 285 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 286 mShutterButton.setOnShutterButtonListener(this); 287 mShutterButton.setVisibility(View.VISIBLE); 288 289 mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); 290 updateFocusIndicator(); 291 292 // Initialize GPS indicator. 293 mGpsIndicator = (IconIndicator) findViewById(R.id.gps_icon); 294 295 ImageManager.ensureOSXCompatibleFolder(); 296 297 installIntentFilter(); 298 299 initializeFocusTone(); 300 301 initializeZoom(); 302 303 mFirstTimeInitialized = true; 304 } 305 306 private void updateThumbnailButton() { 307 // Update last image if URI is invalid and the storage is ready. 308 if (!mThumbController.isUriValid() && mPicturesRemaining >= 0) { 309 updateLastImage(); 310 } 311 mThumbController.updateDisplayIfNeeded(); 312 } 313 314 // If the activity is paused and resumed, this method will be called in 315 // onResume. 316 private void initializeSecondTime() { 317 // Start orientation listener as soon as possible because it takes 318 // some time to get first orientation. 319 mOrientationListener.enable(); 320 321 // Start location update if needed. 322 readPreference(); 323 if (mRecordLocation) startReceivingLocationUpdates(); 324 325 installIntentFilter(); 326 327 initializeFocusTone(); 328 329 checkStorage(); 330 331 if (mZoomButtons != null) { 332 mCameraDevice.setZoomCallback(mZoomCallback); 333 } 334 335 if (!mIsImageCaptureIntent) { 336 updateThumbnailButton(); 337 } 338 } 339 340 private void initializeZoom() { 341 if (!mParameters.isZoomSupported()) return; 342 343 mZoomMax = mParameters.getMaxZoom(); 344 Log.v(TAG, "Max zoom=" + mZoomMax); 345 mSmoothZoomSupported = mParameters.isSmoothZoomSupported(); 346 Log.v(TAG, "Smooth zoom supported=" + mSmoothZoomSupported); 347 348 mGestureDetector = new GestureDetector(this, new ZoomGestureListener()); 349 mCameraDevice.setZoomCallback(mZoomCallback); 350 mZoomButtons = new ZoomButtonsController(mSurfaceView); 351 mZoomButtons.setAutoDismissed(true); 352 mZoomButtons.setZoomSpeed(100); 353 mZoomButtons.setOnZoomListener( 354 new ZoomButtonsController.OnZoomListener() { 355 public void onVisibilityChanged(boolean visible) { 356 if (visible) { 357 updateZoomButtonsEnabled(); 358 } 359 } 360 361 public void onZoom(boolean zoomIn) { 362 if (isZooming()) return; 363 364 if (zoomIn) { 365 if (mZoomValue < mZoomMax) { 366 if (mSmoothZoomSupported) { 367 mCameraDevice.startSmoothZoom(mZoomValue + 1); 368 mZooming = true; 369 } else { 370 mParameters.setZoom(++mZoomValue); 371 mCameraDevice.setParameters(mParameters); 372 updateZoomButtonsEnabled(); 373 } 374 } 375 } else { 376 if (mZoomValue > 0) { 377 if (mSmoothZoomSupported) { 378 mCameraDevice.startSmoothZoom(mZoomValue - 1); 379 mZooming = true; 380 } else { 381 mParameters.setZoom(--mZoomValue); 382 mCameraDevice.setParameters(mParameters); 383 updateZoomButtonsEnabled(); 384 } 385 } 386 } 387 } 388 }); 389 } 390 391 public void onVisibilityChanged(boolean visible) { 392 // When the on-screen setting is not displayed, we show the gripper. 393 // When the on-screen setting is displayed, we hide the gripper. 394 int reverseVisibility = visible ? View.INVISIBLE : View.VISIBLE; 395 findViewById(R.id.btn_gripper).setVisibility(reverseVisibility); 396 findViewById(R.id.indicator_bar).setVisibility(reverseVisibility); 397 398 if (visible) { 399 mPreferences.registerOnSharedPreferenceChangeListener(this); 400 } else { 401 mPreferences.unregisterOnSharedPreferenceChangeListener(this); 402 } 403 } 404 405 private boolean isZooming() { 406 Log.v(TAG, "mZooming=" + mZooming); 407 return mZooming; 408 } 409 410 private void updateZoomButtonsEnabled() { 411 mZoomButtons.setZoomInEnabled(mZoomValue < mZoomMax); 412 mZoomButtons.setZoomOutEnabled(mZoomValue > 0); 413 } 414 415 private class ZoomGestureListener extends 416 GestureDetector.SimpleOnGestureListener { 417 @Override 418 public boolean onDown(MotionEvent e) { 419 // Show zoom buttons only when preview is started and snapshot 420 // is not in progress. mZoomButtons may be null if it is not 421 // initialized. 422 if (!mPausing && isCameraIdle() && mPreviewing 423 && mZoomButtons != null) { 424 mZoomButtons.setVisible(true); 425 } 426 return true; 427 } 428 429 @Override 430 public boolean onDoubleTap(MotionEvent e) { 431 // Perform zoom only when preview is started and snapshot is not in 432 // progress. 433 if (mPausing || !isCameraIdle() || !mPreviewing 434 || mZoomButtons == null || isZooming()) { 435 return false; 436 } 437 438 if (mZoomValue < mZoomMax) { 439 // Zoom in to the maximum. 440 while (mZoomValue < mZoomMax) { 441 mParameters.setZoom(++mZoomValue); 442 mCameraDevice.setParameters(mParameters); 443 // Wait for a while so we are not changing zoom too fast. 444 try { 445 Thread.sleep(5); 446 } catch (InterruptedException ex) { 447 } 448 } 449 } else { 450 // Zoom out to the minimum. 451 while (mZoomValue > 0) { 452 mParameters.setZoom(--mZoomValue); 453 mCameraDevice.setParameters(mParameters); 454 // Wait for a while so we are not changing zoom too fast. 455 try { 456 Thread.sleep(5); 457 } catch (InterruptedException ex) { 458 } 459 } 460 } 461 updateZoomButtonsEnabled(); 462 return true; 463 } 464 } 465 466 @Override 467 public boolean dispatchTouchEvent(MotionEvent m) { 468 if (!super.dispatchTouchEvent(m) && mGestureDetector != null) { 469 return mGestureDetector.onTouchEvent(m); 470 } 471 return true; 472 } 473 474 LocationListener [] mLocationListeners = new LocationListener[] { 475 new LocationListener(LocationManager.GPS_PROVIDER), 476 new LocationListener(LocationManager.NETWORK_PROVIDER) 477 }; 478 479 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 480 @Override 481 public void onReceive(Context context, Intent intent) { 482 String action = intent.getAction(); 483 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 484 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 485 || action.equals(Intent.ACTION_MEDIA_CHECKING) 486 || action.equals(Intent.ACTION_MEDIA_SCANNER_STARTED)) { 487 checkStorage(); 488 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 489 checkStorage(); 490 if (!mIsImageCaptureIntent) { 491 updateThumbnailButton(); 492 } 493 } 494 } 495 }; 496 497 private class LocationListener 498 implements android.location.LocationListener { 499 Location mLastLocation; 500 boolean mValid = false; 501 String mProvider; 502 503 public LocationListener(String provider) { 504 mProvider = provider; 505 mLastLocation = new Location(mProvider); 506 } 507 508 public void onLocationChanged(Location newLocation) { 509 if (newLocation.getLatitude() == 0.0 510 && newLocation.getLongitude() == 0.0) { 511 // Hack to filter out 0.0,0.0 locations 512 return; 513 } 514 // If GPS is available before start camera, we won't get status 515 // update so update GPS indicator when we receive data. 516 if (mRecordLocation 517 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 518 mGpsIndicator.setMode(GPS_MODE_ON); 519 } 520 mLastLocation.set(newLocation); 521 mValid = true; 522 } 523 524 public void onProviderEnabled(String provider) { 525 } 526 527 public void onProviderDisabled(String provider) { 528 mValid = false; 529 } 530 531 public void onStatusChanged( 532 String provider, int status, Bundle extras) { 533 switch(status) { 534 case LocationProvider.OUT_OF_SERVICE: 535 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 536 mValid = false; 537 if (mRecordLocation && 538 LocationManager.GPS_PROVIDER.equals(provider)) { 539 mGpsIndicator.setMode(GPS_MODE_OFF); 540 } 541 break; 542 } 543 } 544 } 545 546 public Location current() { 547 return mValid ? mLastLocation : null; 548 } 549 } 550 551 private final class OneShotPreviewCallback 552 implements android.hardware.Camera.PreviewCallback { 553 public void onPreviewFrame(byte[] data, 554 android.hardware.Camera camera) { 555 long now = System.currentTimeMillis(); 556 if (mJpegPictureCallbackTime != 0) { 557 mJpegPictureCallbackTimeLag = now - mJpegPictureCallbackTime; 558 Log.v(TAG, "mJpegPictureCallbackTimeLag = " 559 + mJpegPictureCallbackTimeLag + "ms"); 560 mJpegPictureCallbackTime = 0; 561 } else { 562 Log.v(TAG, "Got first frame"); 563 } 564 } 565 } 566 567 private final class ShutterCallback 568 implements android.hardware.Camera.ShutterCallback { 569 public void onShutter() { 570 mShutterCallbackTime = System.currentTimeMillis(); 571 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 572 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 573 clearFocusState(); 574 } 575 } 576 577 private final class RawPictureCallback implements PictureCallback { 578 public void onPictureTaken( 579 byte [] rawData, android.hardware.Camera camera) { 580 mRawPictureCallbackTime = System.currentTimeMillis(); 581 mShutterAndRawPictureCallbackTime = 582 mRawPictureCallbackTime - mShutterCallbackTime; 583 Log.v(TAG, "mShutterAndRawPictureCallbackTime = " 584 + mShutterAndRawPictureCallbackTime + "ms"); 585 } 586 } 587 588 private final class JpegPictureCallback implements PictureCallback { 589 Location mLocation; 590 591 public JpegPictureCallback(Location loc) { 592 mLocation = loc; 593 } 594 595 public void onPictureTaken( 596 final byte [] jpegData, final android.hardware.Camera camera) { 597 if (mPausing) { 598 return; 599 } 600 601 mJpegPictureCallbackTime = System.currentTimeMillis(); 602 mRawPictureAndJpegPictureCallbackTime = 603 mJpegPictureCallbackTime - mRawPictureCallbackTime; 604 Log.v(TAG, "mRawPictureAndJpegPictureCallbackTime = " 605 + mRawPictureAndJpegPictureCallbackTime + "ms"); 606 607 if (!mIsImageCaptureIntent) { 608 // We want to show the taken picture for a while, so we wait 609 // for at least 1.2 second before restarting the preview. 610 long delay = 1200 - ( 611 System.currentTimeMillis() - mRawPictureCallbackTime); 612 if (delay < 0) { 613 restartPreview(); 614 } else { 615 mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay); 616 } 617 } 618 mImageCapture.storeImage(jpegData, camera, mLocation); 619 620 // Calculate this in advance of each shot so we don't add to shutter 621 // latency. It's true that someone else could write to the SD card in 622 // the mean time and fill it, but that could have happened between the 623 // shutter press and saving the JPEG too. 624 calculatePicturesRemaining(); 625 } 626 } 627 628 private final class AutoFocusCallback 629 implements android.hardware.Camera.AutoFocusCallback { 630 public void onAutoFocus( 631 boolean focused, android.hardware.Camera camera) { 632 mFocusCallbackTime = System.currentTimeMillis(); 633 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 634 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 635 if (mFocusState == FOCUSING_SNAP_ON_FINISH) { 636 // Take the picture no matter focus succeeds or fails. No need 637 // to play the AF sound if we're about to play the shutter 638 // sound. 639 if (focused) { 640 mFocusState = FOCUS_SUCCESS; 641 } else { 642 mFocusState = FOCUS_FAIL; 643 } 644 mImageCapture.onSnap(); 645 } else if (mFocusState == FOCUSING) { 646 // User is half-pressing the focus key. Play the focus tone. 647 // Do not take the picture now. 648 ToneGenerator tg = mFocusToneGenerator; 649 if (tg != null) { 650 tg.startTone(ToneGenerator.TONE_PROP_BEEP2); 651 } 652 if (focused) { 653 mFocusState = FOCUS_SUCCESS; 654 } else { 655 mFocusState = FOCUS_FAIL; 656 } 657 } else if (mFocusState == FOCUS_NOT_STARTED) { 658 // User has released the focus key before focus completes. 659 // Do nothing. 660 } 661 updateFocusIndicator(); 662 } 663 } 664 665 private final class ErrorCallback 666 implements android.hardware.Camera.ErrorCallback { 667 public void onError(int error, android.hardware.Camera camera) { 668 if (error == android.hardware.Camera.CAMERA_ERROR_SERVER_DIED) { 669 mMediaServerDied = true; 670 Log.v(TAG, "media server died"); 671 } 672 } 673 } 674 675 private final class ZoomCallback 676 implements android.hardware.Camera.ZoomCallback { 677 public void onZoomUpdate(int zoomValue, boolean stopped, 678 android.hardware.Camera camera) { 679 Log.v(TAG, "ZoomCallback: zoom value=" + zoomValue + ". stopped=" 680 + stopped); 681 mZoomValue = zoomValue; 682 // Keep mParameters up to date. We do not getParameter again in 683 // takePicture. If we do not do this, wrong zoom value will be set. 684 mParameters.setZoom(zoomValue); 685 // We only care if the zoom is stopped. mZooming is set to true when 686 // we start smooth zoom. 687 if (stopped) mZooming = false; 688 updateZoomButtonsEnabled(); 689 } 690 } 691 692 private class ImageCapture { 693 694 private boolean mCancel = false; 695 696 private Uri mLastContentUri; 697 698 byte[] mCaptureOnlyData; 699 700 // Returns the rotation degree in the jpeg header. 701 private int storeImage(byte[] data, Location loc) { 702 try { 703 long dateTaken = System.currentTimeMillis(); 704 String name = createName(dateTaken) + ".jpg"; 705 int[] degree = new int[1]; 706 mLastContentUri = ImageManager.addImage( 707 mContentResolver, 708 name, 709 dateTaken, 710 loc, // location from gps/network 711 ImageManager.CAMERA_IMAGE_BUCKET_NAME, name, 712 null, data, 713 degree); 714 if (mLastContentUri == null) { 715 // this means we got an error 716 mCancel = true; 717 } 718 if (!mCancel) { 719 ImageManager.setImageSize(mContentResolver, mLastContentUri, 720 new File(ImageManager.CAMERA_IMAGE_BUCKET_NAME, 721 name).length()); 722 } 723 return degree[0]; 724 } catch (Exception ex) { 725 Log.e(TAG, "Exception while compressing image.", ex); 726 return 0; 727 } 728 } 729 730 public void storeImage(final byte[] data, 731 android.hardware.Camera camera, Location loc) { 732 if (!mIsImageCaptureIntent) { 733 int degree = storeImage(data, loc); 734 sendBroadcast(new Intent( 735 "com.android.camera.NEW_PICTURE", mLastContentUri)); 736 setLastPictureThumb(data, degree, 737 mImageCapture.getLastCaptureUri()); 738 mThumbController.updateDisplayIfNeeded(); 739 } else { 740 mCaptureOnlyData = data; 741 showPostCaptureAlert(); 742 } 743 } 744 745 /** 746 * Initiate the capture of an image. 747 */ 748 public void initiate() { 749 if (mCameraDevice == null) { 750 return; 751 } 752 753 mCancel = false; 754 755 capture(); 756 } 757 758 public Uri getLastCaptureUri() { 759 return mLastContentUri; 760 } 761 762 public byte[] getLastCaptureData() { 763 return mCaptureOnlyData; 764 } 765 766 private void capture() { 767 mCaptureOnlyData = null; 768 769 // Set rotation. 770 int orientation = mLastOrientation; 771 if (orientation != OrientationEventListener.ORIENTATION_UNKNOWN) { 772 orientation += 90; 773 } 774 orientation = ImageManager.roundOrientation(orientation); 775 Log.v(TAG, "mLastOrientation = " + mLastOrientation 776 + ", orientation = " + orientation); 777 mParameters.setRotation(orientation); 778 779 // Clear previous GPS location from the parameters. 780 mParameters.removeGpsData(); 781 782 // Set GPS location. 783 Location loc = mRecordLocation ? getCurrentLocation() : null; 784 if (loc != null) { 785 double lat = loc.getLatitude(); 786 double lon = loc.getLongitude(); 787 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 788 789 if (hasLatLon) { 790 mParameters.setGpsLatitude(lat); 791 mParameters.setGpsLongitude(lon); 792 if (loc.hasAltitude()) { 793 mParameters.setGpsAltitude(loc.getAltitude()); 794 } else { 795 // for NETWORK_PROVIDER location provider, we may have 796 // no altitude information, but the driver needs it, so 797 // we fake one. 798 mParameters.setGpsAltitude(0); 799 } 800 if (loc.getTime() != 0) { 801 // Location.getTime() is UTC in milliseconds. 802 // gps-timestamp is UTC in seconds. 803 long utcTimeSeconds = loc.getTime() / 1000; 804 mParameters.setGpsTimestamp(utcTimeSeconds); 805 } 806 } else { 807 loc = null; 808 } 809 } 810 811 mCameraDevice.setParameters(mParameters); 812 813 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 814 new JpegPictureCallback(loc)); 815 mPreviewing = false; 816 } 817 818 public void onSnap() { 819 // If we are already in the middle of taking a snapshot then ignore. 820 if (mPausing || mStatus == SNAPSHOT_IN_PROGRESS) { 821 return; 822 } 823 mCaptureStartTime = System.currentTimeMillis(); 824 825 // Don't check the filesystem here, we can't afford the latency. 826 // Instead, check the cached value which was calculated when the 827 // preview was restarted. 828 if (mPicturesRemaining < 1) { 829 updateStorageHint(mPicturesRemaining); 830 return; 831 } 832 833 mStatus = SNAPSHOT_IN_PROGRESS; 834 835 mImageCapture.initiate(); 836 } 837 838 private void clearLastData() { 839 mCaptureOnlyData = null; 840 } 841 } 842 843 private boolean saveDataToFile(String filePath, byte[] data) { 844 FileOutputStream f = null; 845 try { 846 f = new FileOutputStream(filePath); 847 f.write(data); 848 } catch (IOException e) { 849 return false; 850 } finally { 851 MenuHelper.closeSilently(f); 852 } 853 return true; 854 } 855 856 private void setLastPictureThumb(byte[] data, int degree, Uri uri) { 857 BitmapFactory.Options options = new BitmapFactory.Options(); 858 options.inSampleSize = 16; 859 Bitmap lastPictureThumb = 860 BitmapFactory.decodeByteArray(data, 0, data.length, options); 861 lastPictureThumb = Util.rotate(lastPictureThumb, degree); 862 mThumbController.setData(uri, lastPictureThumb); 863 } 864 865 private static String createName(long dateTaken) { 866 return DateFormat.format("yyyy-MM-dd kk.mm.ss", dateTaken).toString(); 867 } 868 869 @Override 870 public void onCreate(Bundle icicle) { 871 super.onCreate(icicle); 872 873 Window win = getWindow(); 874 win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 875 setContentView(R.layout.camera); 876 mSurfaceView = (SurfaceView) findViewById(R.id.camera_preview); 877 878 mPreferences = PreferenceManager.getDefaultSharedPreferences(this); 879 CameraSettings.upgradePreferences(mPreferences); 880 881 /* 882 * To reduce startup time, we start the preview in another thread. 883 * We make sure the preview is started at the end of onCreate. 884 */ 885 Thread startPreviewThread = new Thread(new Runnable() { 886 public void run() { 887 try { 888 mStartPreviewFail = false; 889 startPreview(); 890 } catch (CameraHardwareException e) { 891 // In eng build, we throw the exception so that test tool 892 // can detect it and report it 893 if ("eng".equals(Build.TYPE)) { 894 throw new RuntimeException(e); 895 } 896 mStartPreviewFail = true; 897 } 898 } 899 }); 900 startPreviewThread.start(); 901 902 // don't set mSurfaceHolder here. We have it set ONLY within 903 // surfaceChanged / surfaceDestroyed, other parts of the code 904 // assume that when it is set, the surface is also set. 905 SurfaceHolder holder = mSurfaceView.getHolder(); 906 holder.addCallback(this); 907 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 908 909 mIsImageCaptureIntent = isImageCaptureIntent(); 910 if (mIsImageCaptureIntent) { 911 setupCaptureParams(); 912 } 913 914 LayoutInflater inflater = getLayoutInflater(); 915 916 ViewGroup rootView = (ViewGroup) findViewById(R.id.camera); 917 if (mIsImageCaptureIntent) { 918 View controlBar = inflater.inflate( 919 R.layout.attach_camera_control, rootView); 920 controlBar.findViewById(R.id.btn_cancel).setOnClickListener(this); 921 controlBar.findViewById(R.id.btn_retake).setOnClickListener(this); 922 controlBar.findViewById(R.id.btn_done).setOnClickListener(this); 923 } else { 924 inflater.inflate(R.layout.camera_control, rootView); 925 mSwitcher = ((Switcher) findViewById(R.id.camera_switch)); 926 mSwitcher.setOnSwitchListener(this); 927 mSwitcher.addTouchView(findViewById(R.id.camera_switch_set)); 928 } 929 findViewById(R.id.btn_gripper) 930 .setOnTouchListener(new GripperTouchListener()); 931 932 mFlashIndicator = (IconIndicator) findViewById(R.id.flash_icon); 933 mFocusIndicator = (IconIndicator) findViewById(R.id.focus_icon); 934 mSceneModeIndicator = (IconIndicator) findViewById(R.id.scenemode_icon); 935 mWhitebalanceIndicator = 936 (IconIndicator) findViewById(R.id.whitebalance_icon); 937 938 // Make sure preview is started. 939 try { 940 startPreviewThread.join(); 941 if (mStartPreviewFail) { 942 showCameraErrorAndFinish(); 943 return; 944 } 945 } catch (InterruptedException ex) { 946 // ignore 947 } 948 } 949 950 private class GripperTouchListener implements View.OnTouchListener { 951 public boolean onTouch(View view, MotionEvent event) { 952 switch (event.getAction()) { 953 case MotionEvent.ACTION_DOWN: 954 return true; 955 case MotionEvent.ACTION_UP: 956 showOnScreenSettings(); 957 return true; 958 } 959 return false; 960 } 961 } 962 963 @Override 964 public void onStart() { 965 super.onStart(); 966 if (!mIsImageCaptureIntent) { 967 mSwitcher.setSwitch(SWITCH_CAMERA); 968 } 969 } 970 971 private void checkStorage() { 972 if (ImageManager.isMediaScannerScanning(getContentResolver())) { 973 mPicturesRemaining = MenuHelper.NO_STORAGE_ERROR; 974 } else { 975 calculatePicturesRemaining(); 976 } 977 updateStorageHint(mPicturesRemaining); 978 } 979 980 981 private void showOnScreenSettings() { 982 if (mSettings == null) { 983 mSettings = new OnScreenSettings( 984 findViewById(R.id.camera_preview)); 985 CameraSettings helper = 986 new CameraSettings(this, mInitialParams); 987 mSettings.setPreferenceScreen(helper 988 .getPreferenceScreen(R.xml.camera_preferences)); 989 mSettings.setOnVisibilityChangedListener(this); 990 991 String sceneMode = mParameters.getSceneMode(); 992 if (sceneMode == null 993 || Parameters.SCENE_MODE_AUTO.equals(sceneMode)) { 994 // If scene mode is auto, cancel override in settings 995 mSettings.overrideSettings(CameraSettings.KEY_FLASH_MODE, null); 996 mSettings.overrideSettings(CameraSettings.KEY_FOCUS_MODE, null); 997 mSettings.overrideSettings( 998 CameraSettings.KEY_WHITE_BALANCE, null); 999 } else { 1000 // If scene mode is not auto, override the value in settings 1001 mSettings.overrideSettings(CameraSettings.KEY_FLASH_MODE, 1002 mParameters.getFlashMode()); 1003 mSettings.overrideSettings(CameraSettings.KEY_FOCUS_MODE, 1004 mParameters.getFocusMode()); 1005 mSettings.overrideSettings(CameraSettings.KEY_WHITE_BALANCE, 1006 mParameters.getWhiteBalance()); 1007 } 1008 } 1009 1010 mSettings.setVisible(true); 1011 } 1012 1013 public void onClick(View v) { 1014 switch (v.getId()) { 1015 case R.id.btn_retake: 1016 hidePostCaptureAlert(); 1017 restartPreview(); 1018 break; 1019 case R.id.review_thumbnail: 1020 if (isCameraIdle()) { 1021 viewLastImage(); 1022 } 1023 break; 1024 case R.id.btn_done: 1025 doAttach(); 1026 break; 1027 case R.id.btn_cancel: 1028 doCancel(); 1029 } 1030 } 1031 1032 private Bitmap createCaptureBitmap(byte[] data) { 1033 // This is really stupid...we just want to read the orientation in 1034 // the jpeg header. 1035 String filepath = ImageManager.getTempJpegPath(); 1036 int degree = 0; 1037 if (saveDataToFile(filepath, data)) { 1038 degree = ImageManager.getExifOrientation(filepath); 1039 new File(filepath).delete(); 1040 } 1041 1042 // Limit to 50k pixels so we can return it in the intent. 1043 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1044 bitmap = Util.rotate(bitmap, degree); 1045 return bitmap; 1046 } 1047 1048 private void doAttach() { 1049 if (mPausing) { 1050 return; 1051 } 1052 1053 byte[] data = mImageCapture.getLastCaptureData(); 1054 1055 if (mCropValue == null) { 1056 // First handle the no crop case -- just return the value. If the 1057 // caller specifies a "save uri" then write the data to it's 1058 // stream. Otherwise, pass back a scaled down version of the bitmap 1059 // directly in the extras. 1060 if (mSaveUri != null) { 1061 OutputStream outputStream = null; 1062 try { 1063 outputStream = mContentResolver.openOutputStream(mSaveUri); 1064 outputStream.write(data); 1065 outputStream.close(); 1066 1067 setResult(RESULT_OK); 1068 finish(); 1069 } catch (IOException ex) { 1070 // ignore exception 1071 } finally { 1072 Util.closeSilently(outputStream); 1073 } 1074 } else { 1075 Bitmap bitmap = createCaptureBitmap(data); 1076 setResult(RESULT_OK, 1077 new Intent("inline-data").putExtra("data", bitmap)); 1078 finish(); 1079 } 1080 } else { 1081 // Save the image to a temp file and invoke the cropper 1082 Uri tempUri = null; 1083 FileOutputStream tempStream = null; 1084 try { 1085 File path = getFileStreamPath(sTempCropFilename); 1086 path.delete(); 1087 tempStream = openFileOutput(sTempCropFilename, 0); 1088 tempStream.write(data); 1089 tempStream.close(); 1090 tempUri = Uri.fromFile(path); 1091 } catch (FileNotFoundException ex) { 1092 setResult(Activity.RESULT_CANCELED); 1093 finish(); 1094 return; 1095 } catch (IOException ex) { 1096 setResult(Activity.RESULT_CANCELED); 1097 finish(); 1098 return; 1099 } finally { 1100 Util.closeSilently(tempStream); 1101 } 1102 1103 Bundle newExtras = new Bundle(); 1104 if (mCropValue.equals("circle")) { 1105 newExtras.putString("circleCrop", "true"); 1106 } 1107 if (mSaveUri != null) { 1108 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1109 } else { 1110 newExtras.putBoolean("return-data", true); 1111 } 1112 1113 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1114 1115 cropIntent.setData(tempUri); 1116 cropIntent.putExtras(newExtras); 1117 1118 startActivityForResult(cropIntent, CROP_MSG); 1119 } 1120 } 1121 1122 private void doCancel() { 1123 setResult(RESULT_CANCELED, new Intent()); 1124 finish(); 1125 } 1126 1127 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1128 if (mPausing) { 1129 return; 1130 } 1131 switch (button.getId()) { 1132 case R.id.shutter_button: 1133 doFocus(pressed); 1134 break; 1135 } 1136 } 1137 1138 public void onShutterButtonClick(ShutterButton button) { 1139 if (mPausing) { 1140 return; 1141 } 1142 switch (button.getId()) { 1143 case R.id.shutter_button: 1144 doSnap(); 1145 break; 1146 } 1147 } 1148 1149 private OnScreenHint mStorageHint; 1150 1151 private void updateStorageHint(int remaining) { 1152 String noStorageText = null; 1153 1154 if (remaining == MenuHelper.NO_STORAGE_ERROR) { 1155 String state = Environment.getExternalStorageState(); 1156 if (state == Environment.MEDIA_CHECKING || 1157 ImageManager.isMediaScannerScanning(getContentResolver())) { 1158 noStorageText = getString(R.string.preparing_sd); 1159 } else { 1160 noStorageText = getString(R.string.no_storage); 1161 } 1162 } else if (remaining < 1) { 1163 noStorageText = getString(R.string.not_enough_space); 1164 } 1165 1166 if (noStorageText != null) { 1167 if (mStorageHint == null) { 1168 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1169 } else { 1170 mStorageHint.setText(noStorageText); 1171 } 1172 mStorageHint.show(); 1173 } else if (mStorageHint != null) { 1174 mStorageHint.cancel(); 1175 mStorageHint = null; 1176 } 1177 } 1178 1179 private void installIntentFilter() { 1180 // install an intent filter to receive SD card related events. 1181 IntentFilter intentFilter = 1182 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1183 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1184 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED); 1185 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1186 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1187 intentFilter.addDataScheme("file"); 1188 registerReceiver(mReceiver, intentFilter); 1189 mDidRegister = true; 1190 } 1191 1192 private void initializeFocusTone() { 1193 // Initialize focus tone generator. 1194 try { 1195 mFocusToneGenerator = new ToneGenerator( 1196 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1197 } catch (Throwable ex) { 1198 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1199 mFocusToneGenerator = null; 1200 } 1201 } 1202 1203 private void readPreference() { 1204 mRecordLocation = mPreferences.getBoolean( 1205 "pref_camera_recordlocation_key", false); 1206 mFocusMode = mPreferences.getString( 1207 CameraSettings.KEY_FOCUS_MODE, 1208 getString(R.string.pref_camera_focusmode_default)); 1209 } 1210 1211 @Override 1212 public void onResume() { 1213 super.onResume(); 1214 1215 mPausing = false; 1216 mJpegPictureCallbackTime = 0; 1217 mZoomValue = 0; 1218 mImageCapture = new ImageCapture(); 1219 1220 // Start the preview if it is not started. 1221 if (!mPreviewing && !mStartPreviewFail) { 1222 try { 1223 startPreview(); 1224 } catch (CameraHardwareException e) { 1225 showCameraErrorAndFinish(); 1226 return; 1227 } 1228 } 1229 1230 if (mSurfaceHolder != null) { 1231 // If first time initialization is not finished, put it in the 1232 // message queue. 1233 if (!mFirstTimeInitialized) { 1234 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1235 } else { 1236 initializeSecondTime(); 1237 } 1238 } 1239 keepScreenOnAwhile(); 1240 } 1241 1242 private static ImageManager.DataLocation dataLocation() { 1243 return ImageManager.DataLocation.EXTERNAL; 1244 } 1245 1246 @Override 1247 protected void onPause() { 1248 mPausing = true; 1249 stopPreview(); 1250 // Close the camera now because other activities may need to use it. 1251 closeCamera(); 1252 resetScreenOn(); 1253 1254 if (mSettings != null && mSettings.isVisible()) { 1255 mSettings.setVisible(false); 1256 } 1257 1258 if (mFirstTimeInitialized) { 1259 mOrientationListener.disable(); 1260 mGpsIndicator.setMode(GPS_MODE_OFF); 1261 if (!mIsImageCaptureIntent) { 1262 mThumbController.storeData( 1263 ImageManager.getLastImageThumbPath()); 1264 } 1265 hidePostCaptureAlert(); 1266 } 1267 1268 if (mDidRegister) { 1269 unregisterReceiver(mReceiver); 1270 mDidRegister = false; 1271 } 1272 stopReceivingLocationUpdates(); 1273 1274 if (mFocusToneGenerator != null) { 1275 mFocusToneGenerator.release(); 1276 mFocusToneGenerator = null; 1277 } 1278 1279 if (mStorageHint != null) { 1280 mStorageHint.cancel(); 1281 mStorageHint = null; 1282 } 1283 1284 // If we are in an image capture intent and has taken 1285 // a picture, we just clear it in onPause. 1286 mImageCapture.clearLastData(); 1287 mImageCapture = null; 1288 1289 // This is necessary to make the ZoomButtonsController unregister 1290 // its configuration change receiver. 1291 if (mZoomButtons != null) { 1292 mZoomButtons.setVisible(false); 1293 } 1294 1295 // Remove the messages in the event queue. 1296 mHandler.removeMessages(RESTART_PREVIEW); 1297 mHandler.removeMessages(FIRST_TIME_INIT); 1298 1299 super.onPause(); 1300 } 1301 1302 @Override 1303 protected void onActivityResult( 1304 int requestCode, int resultCode, Intent data) { 1305 switch (requestCode) { 1306 case CROP_MSG: { 1307 Intent intent = new Intent(); 1308 if (data != null) { 1309 Bundle extras = data.getExtras(); 1310 if (extras != null) { 1311 intent.putExtras(extras); 1312 } 1313 } 1314 setResult(resultCode, intent); 1315 finish(); 1316 1317 File path = getFileStreamPath(sTempCropFilename); 1318 path.delete(); 1319 1320 break; 1321 } 1322 } 1323 } 1324 1325 private boolean canTakePicture() { 1326 return isCameraIdle() && mPreviewing && (mPicturesRemaining > 0); 1327 } 1328 1329 private void autoFocus() { 1330 // Initiate autofocus only when preview is started and snapshot is not 1331 // in progress. 1332 if (canTakePicture()) { 1333 Log.v(TAG, "Start autofocus."); 1334 if (mZoomButtons != null) mZoomButtons.setVisible(false); 1335 mFocusStartTime = System.currentTimeMillis(); 1336 mFocusState = FOCUSING; 1337 updateFocusIndicator(); 1338 mCameraDevice.autoFocus(mAutoFocusCallback); 1339 } 1340 } 1341 1342 private void cancelAutoFocus() { 1343 // User releases half-pressed focus key. 1344 if (mFocusState == FOCUSING || mFocusState == FOCUS_SUCCESS 1345 || mFocusState == FOCUS_FAIL) { 1346 Log.v(TAG, "Cancel autofocus."); 1347 mCameraDevice.cancelAutoFocus(); 1348 } 1349 if (mFocusState != FOCUSING_SNAP_ON_FINISH) { 1350 clearFocusState(); 1351 } 1352 } 1353 1354 private void clearFocusState() { 1355 mFocusState = FOCUS_NOT_STARTED; 1356 updateFocusIndicator(); 1357 } 1358 1359 private void updateFocusIndicator() { 1360 if (mFocusRectangle == null) return; 1361 1362 if (mFocusState == FOCUSING || mFocusState == FOCUSING_SNAP_ON_FINISH) { 1363 mFocusRectangle.showStart(); 1364 } else if (mFocusState == FOCUS_SUCCESS) { 1365 mFocusRectangle.showSuccess(); 1366 } else if (mFocusState == FOCUS_FAIL) { 1367 mFocusRectangle.showFail(); 1368 } else { 1369 mFocusRectangle.clear(); 1370 } 1371 } 1372 1373 @Override 1374 public void onBackPressed() { 1375 if (!isCameraIdle()) { 1376 // ignore backs while we're taking a picture 1377 return; 1378 } 1379 super.onBackPressed(); 1380 } 1381 1382 @Override 1383 public boolean onKeyDown(int keyCode, KeyEvent event) { 1384 switch (keyCode) { 1385 case KeyEvent.KEYCODE_FOCUS: 1386 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1387 doFocus(true); 1388 } 1389 return true; 1390 case KeyEvent.KEYCODE_CAMERA: 1391 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1392 doSnap(); 1393 } 1394 return true; 1395 case KeyEvent.KEYCODE_DPAD_CENTER: 1396 // If we get a dpad center event without any focused view, move 1397 // the focus to the shutter button and press it. 1398 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1399 // Start auto-focus immediately to reduce shutter lag. After 1400 // the shutter button gets the focus, doFocus() will be 1401 // called again but it is fine. 1402 doFocus(true); 1403 if (mShutterButton.isInTouchMode()) { 1404 mShutterButton.requestFocusFromTouch(); 1405 } else { 1406 mShutterButton.requestFocus(); 1407 } 1408 mShutterButton.setPressed(true); 1409 } 1410 return true; 1411 } 1412 1413 return super.onKeyDown(keyCode, event); 1414 } 1415 1416 @Override 1417 public boolean onKeyUp(int keyCode, KeyEvent event) { 1418 switch (keyCode) { 1419 case KeyEvent.KEYCODE_FOCUS: 1420 if (mFirstTimeInitialized) { 1421 doFocus(false); 1422 } 1423 return true; 1424 case KeyEvent.KEYCODE_MENU: 1425 if (mIsImageCaptureIntent) { 1426 showOnScreenSettings(); 1427 return true; 1428 } 1429 break; 1430 } 1431 return super.onKeyUp(keyCode, event); 1432 } 1433 1434 private void doSnap() { 1435 Log.v(TAG, "doSnap: mFocusState=" + mFocusState); 1436 // If the user has half-pressed the shutter and focus is completed, we 1437 // can take the photo right away. If the focus mode is infinity, we can 1438 // also take the photo. 1439 if (mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1440 || (mFocusState == FOCUS_SUCCESS 1441 || mFocusState == FOCUS_FAIL)) { 1442 if (mZoomButtons != null) mZoomButtons.setVisible(false); 1443 mImageCapture.onSnap(); 1444 } else if (mFocusState == FOCUSING) { 1445 // Half pressing the shutter (i.e. the focus button event) will 1446 // already have requested AF for us, so just request capture on 1447 // focus here. 1448 mFocusState = FOCUSING_SNAP_ON_FINISH; 1449 } else if (mFocusState == FOCUS_NOT_STARTED) { 1450 // Focus key down event is dropped for some reasons. Just ignore. 1451 } 1452 } 1453 1454 private void doFocus(boolean pressed) { 1455 // Do the focus if the mode is not infinity. 1456 if (!mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY)) { 1457 if (pressed) { // Focus key down. 1458 autoFocus(); 1459 } else { // Focus key up. 1460 cancelAutoFocus(); 1461 } 1462 } 1463 } 1464 1465 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1466 // Make sure we have a surface in the holder before proceeding. 1467 if (holder.getSurface() == null) { 1468 Log.d(TAG, "holder.getSurface() == null"); 1469 return; 1470 } 1471 1472 // The mCameraDevice will be null if it fails to connect to the camera 1473 // hardware. In this case we will show a dialog and then finish the 1474 // activity, so it's OK to ignore it. 1475 if (mCameraDevice == null) return; 1476 1477 mSurfaceHolder = holder; 1478 1479 // Sometimes surfaceChanged is called after onPause. Ignore it. 1480 if (mPausing || isFinishing()) return; 1481 1482 // Set preview display if the surface is being created. Preview was 1483 // already started. 1484 if (holder.isCreating()) { 1485 setPreviewDisplay(holder); 1486 } 1487 1488 // If first time initialization is not finished, send a message to do 1489 // it later. We want to finish surfaceChanged as soon as possible to let 1490 // user see preview first. 1491 if (!mFirstTimeInitialized) { 1492 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1493 } else { 1494 initializeSecondTime(); 1495 } 1496 } 1497 1498 public void surfaceCreated(SurfaceHolder holder) { 1499 } 1500 1501 public void surfaceDestroyed(SurfaceHolder holder) { 1502 stopPreview(); 1503 mSurfaceHolder = null; 1504 } 1505 1506 private void closeCamera() { 1507 if (mCameraDevice != null) { 1508 CameraHolder.instance().release(); 1509 if (mZoomButtons != null) mCameraDevice.setZoomCallback(null); 1510 mCameraDevice = null; 1511 mPreviewing = false; 1512 } 1513 } 1514 1515 private void ensureCameraDevice() throws CameraHardwareException { 1516 if (mCameraDevice == null) { 1517 mCameraDevice = CameraHolder.instance().open(); 1518 mInitialParams = mCameraDevice.getParameters(); 1519 } 1520 } 1521 1522 private void updateLastImage() { 1523 IImageList list = ImageManager.makeImageList( 1524 mContentResolver, 1525 dataLocation(), 1526 ImageManager.INCLUDE_IMAGES, 1527 ImageManager.SORT_ASCENDING, 1528 ImageManager.CAMERA_IMAGE_BUCKET_ID); 1529 int count = list.getCount(); 1530 if (count > 0) { 1531 IImage image = list.getImageAt(count - 1); 1532 Uri uri = image.fullSizeImageUri(); 1533 mThumbController.setData(uri, image.miniThumbBitmap()); 1534 } else { 1535 mThumbController.setData(null, null); 1536 } 1537 list.close(); 1538 } 1539 1540 private void showCameraErrorAndFinish() { 1541 Resources ress = getResources(); 1542 Util.showFatalErrorAndFinish(Camera.this, 1543 ress.getString(R.string.camera_error_title), 1544 ress.getString(R.string.cannot_connect_camera)); 1545 } 1546 1547 private void restartPreview() { 1548 // make sure the surfaceview fills the whole screen when previewing 1549 try { 1550 startPreview(); 1551 } catch (CameraHardwareException e) { 1552 showCameraErrorAndFinish(); 1553 return; 1554 } 1555 } 1556 1557 private void setPreviewDisplay(SurfaceHolder holder) { 1558 try { 1559 mCameraDevice.setPreviewDisplay(holder); 1560 } catch (Throwable ex) { 1561 closeCamera(); 1562 throw new RuntimeException("setPreviewDisplay failed", ex); 1563 } 1564 } 1565 1566 private void startPreview() throws CameraHardwareException { 1567 if (mPausing || isFinishing()) return; 1568 1569 ensureCameraDevice(); 1570 1571 // If we're previewing already, stop the preview first (this will blank 1572 // the screen). 1573 if (mPreviewing) stopPreview(); 1574 1575 setPreviewDisplay(mSurfaceHolder); 1576 setCameraParameters(); 1577 1578 final long wallTimeStart = SystemClock.elapsedRealtime(); 1579 final long threadTimeStart = Debug.threadCpuTimeNanos(); 1580 1581 // Set one shot preview callback for latency measurement. 1582 mCameraDevice.setOneShotPreviewCallback(mOneShotPreviewCallback); 1583 mCameraDevice.setErrorCallback(mErrorCallback); 1584 1585 try { 1586 Log.v(TAG, "startPreview"); 1587 mCameraDevice.startPreview(); 1588 } catch (Throwable ex) { 1589 closeCamera(); 1590 throw new RuntimeException("startPreview failed", ex); 1591 } 1592 mPreviewing = true; 1593 mZooming = false; 1594 mStatus = IDLE; 1595 1596 long threadTimeEnd = Debug.threadCpuTimeNanos(); 1597 long wallTimeEnd = SystemClock.elapsedRealtime(); 1598 if ((wallTimeEnd - wallTimeStart) > 3000) { 1599 Log.w(TAG, "startPreview() to " + (wallTimeEnd - wallTimeStart) 1600 + " ms. Thread time was" 1601 + (threadTimeEnd - threadTimeStart) / 1000000 + " ms."); 1602 } 1603 } 1604 1605 private void stopPreview() { 1606 if (mCameraDevice != null && mPreviewing) { 1607 Log.v(TAG, "stopPreview"); 1608 mCameraDevice.stopPreview(); 1609 } 1610 mPreviewing = false; 1611 // If auto focus was in progress, it would have been canceled. 1612 clearFocusState(); 1613 } 1614 1615 private Size getOptimalPreviewSize(List<Size> sizes, double targetRatio) { 1616 final double ASPECT_TOLERANCE = 0.05; 1617 if (sizes == null) return null; 1618 1619 Size optimalSize = null; 1620 double minDiff = Double.MAX_VALUE; 1621 1622 // Because of bugs of overlay and layout, we sometimes will try to 1623 // layout the viewfinder in the portrait orientation and thus get the 1624 // wrong size of mSurfaceView. When we change the preview size, the 1625 // new overlay will be created before the old one closed, which causes 1626 // an exception. For now, just get the screen size 1627 1628 Display display = getWindowManager().getDefaultDisplay(); 1629 int targetHeight = Math.min(display.getHeight(), display.getWidth()); 1630 1631 if (targetHeight <= 0) { 1632 // We don't know the size of SurefaceView, use screen height 1633 WindowManager windowManager = (WindowManager) 1634 getSystemService(Context.WINDOW_SERVICE); 1635 targetHeight = windowManager.getDefaultDisplay().getHeight(); 1636 } 1637 1638 // Try to find an size match aspect ratio and size 1639 for (Size size : sizes) { 1640 double ratio = (double) size.width / size.height; 1641 if (Math.abs(ratio - targetRatio) > ASPECT_TOLERANCE) continue; 1642 if (Math.abs(size.height - targetHeight) < minDiff) { 1643 optimalSize = size; 1644 minDiff = Math.abs(size.height - targetHeight); 1645 } 1646 } 1647 1648 // Cannot find the one match the aspect ratio, ignore the requirement 1649 if (optimalSize == null) { 1650 Log.v(TAG, "No preview size match the aspect ratio"); 1651 minDiff = Double.MAX_VALUE; 1652 for (Size size : sizes) { 1653 if (Math.abs(size.height - targetHeight) < minDiff) { 1654 optimalSize = size; 1655 minDiff = Math.abs(size.height - targetHeight); 1656 } 1657 } 1658 } 1659 Log.v(TAG, String.format( 1660 "Optimal preview size is %sx%s", 1661 optimalSize.width, optimalSize.height)); 1662 return optimalSize; 1663 } 1664 1665 private static boolean isSupported(String value, List<String> supported) { 1666 return supported == null ? false : supported.indexOf(value) >= 0; 1667 } 1668 1669 private void setCameraParameters() { 1670 mParameters = mCameraDevice.getParameters(); 1671 1672 // Since change scene mode may change supported values, 1673 // Set scene mode first, 1674 String sceneMode = mPreferences.getString( 1675 CameraSettings.KEY_SCENE_MODE, 1676 getString(R.string.pref_camera_scenemode_default)); 1677 if (isSupported(sceneMode, mParameters.getSupportedSceneModes())) { 1678 if (!mParameters.getSceneMode().equals(sceneMode)) { 1679 mParameters.setSceneMode(sceneMode); 1680 mCameraDevice.setParameters(mParameters); 1681 1682 // Setting scene mode will change the settings of flash mode, 1683 // white balance, and focus mode. Here we read back the 1684 // parameters, so we can know those settings. 1685 mParameters = mCameraDevice.getParameters(); 1686 } 1687 } else { 1688 sceneMode = mParameters.getSceneMode(); 1689 if (sceneMode == null) { 1690 sceneMode = Parameters.SCENE_MODE_AUTO; 1691 } 1692 } 1693 1694 // Reset preview frame rate to the maximum because it may be lowered by 1695 // video camera application. 1696 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1697 if (frameRates != null) { 1698 Integer max = Collections.max(frameRates); 1699 mParameters.setPreviewFrameRate(max); 1700 } 1701 1702 // Set picture size. 1703 String pictureSize = mPreferences.getString( 1704 CameraSettings.KEY_PICTURE_SIZE, null); 1705 if (pictureSize == null) { 1706 CameraSettings.initialCameraPictureSize(this, mParameters); 1707 } else { 1708 List<Size> supported = mParameters.getSupportedPictureSizes(); 1709 CameraSettings.setCameraPictureSize( 1710 pictureSize, supported, mParameters); 1711 } 1712 1713 // Set the preview frame aspect ratio according to the picture size. 1714 Size size = mParameters.getPictureSize(); 1715 PreviewFrameLayout frameLayout = 1716 (PreviewFrameLayout) findViewById(R.id.frame_layout); 1717 frameLayout.setAspectRatio((double) size.width / size.height); 1718 1719 // Set a preview size that is closest to the viewfinder height and has 1720 // the right aspect ratio. 1721 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1722 Size optimalSize = getOptimalPreviewSize( 1723 sizes, (double) size.width / size.height); 1724 if (optimalSize != null) { 1725 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1726 } 1727 1728 // Set JPEG quality. 1729 String jpegQuality = mPreferences.getString( 1730 CameraSettings.KEY_JPEG_QUALITY, 1731 getString(R.string.pref_camera_jpegquality_default)); 1732 mParameters.setJpegQuality(getQualityNumber(jpegQuality)); 1733 1734 // Set zoom. 1735 if (mParameters.isZoomSupported()) { 1736 mParameters.setZoom(mZoomValue); 1737 } 1738 1739 // For the following settings, we need to check if the settings are 1740 // still supported by latest driver, if not, ignore the settings. 1741 1742 // Set color effect parameter. 1743 String colorEffect = mPreferences.getString( 1744 CameraSettings.KEY_COLOR_EFFECT, 1745 getString(R.string.pref_camera_coloreffect_default)); 1746 if (isSupported(colorEffect, mParameters.getSupportedColorEffects())) { 1747 mParameters.setColorEffect(colorEffect); 1748 } 1749 1750 // If scene mode is set, we cannot set flash mode, white balance, and 1751 // focus mode, instead, we read it from driver 1752 String flashMode; 1753 String whiteBalance; 1754 if (!Parameters.SCENE_MODE_AUTO.equals(sceneMode)) { 1755 flashMode = mParameters.getFlashMode(); 1756 whiteBalance = mParameters.getWhiteBalance(); 1757 mFocusMode = mParameters.getFocusMode(); 1758 if (mSettings != null) { 1759 mSettings.overrideSettings( 1760 CameraSettings.KEY_FLASH_MODE, flashMode); 1761 mSettings.overrideSettings( 1762 CameraSettings.KEY_WHITE_BALANCE, whiteBalance); 1763 mSettings.overrideSettings( 1764 CameraSettings.KEY_FOCUS_MODE, mFocusMode); 1765 } 1766 } else { 1767 if (mSettings != null) { 1768 mSettings.overrideSettings(CameraSettings.KEY_FLASH_MODE, null); 1769 mSettings.overrideSettings(CameraSettings.KEY_FOCUS_MODE, null); 1770 mSettings.overrideSettings( 1771 CameraSettings.KEY_WHITE_BALANCE, null); 1772 } 1773 1774 // Set flash mode. 1775 flashMode = mPreferences.getString( 1776 CameraSettings.KEY_FLASH_MODE, 1777 getString(R.string.pref_camera_flashmode_default)); 1778 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 1779 if (isSupported(flashMode, supportedFlash)) { 1780 mParameters.setFlashMode(flashMode); 1781 } else { 1782 flashMode = mParameters.getFlashMode(); 1783 if (flashMode == null) { 1784 flashMode = NO_FLASH_MODE; 1785 } 1786 } 1787 1788 // Set white balance parameter. 1789 whiteBalance = mPreferences.getString( 1790 CameraSettings.KEY_WHITE_BALANCE, 1791 getString(R.string.pref_camera_whitebalance_default)); 1792 if (isSupported(whiteBalance, 1793 mParameters.getSupportedWhiteBalance())) { 1794 mParameters.setWhiteBalance(whiteBalance); 1795 } else { 1796 whiteBalance = mParameters.getWhiteBalance(); 1797 if (whiteBalance == null) { 1798 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 1799 } 1800 } 1801 1802 // Set focus mode. 1803 mFocusMode = mPreferences.getString( 1804 CameraSettings.KEY_FOCUS_MODE, 1805 getString(R.string.pref_camera_focusmode_default)); 1806 if (isSupported(mFocusMode, mParameters.getSupportedFocusModes())) { 1807 mParameters.setFocusMode(mFocusMode); 1808 } else { 1809 mFocusMode = mParameters.getFocusMode(); 1810 if (mFocusMode == null) { 1811 mFocusMode = Parameters.FOCUS_MODE_AUTO; 1812 } 1813 } 1814 1815 mCameraDevice.setParameters(mParameters); 1816 } 1817 1818 // We post the runner because this function can be called from 1819 // non-UI thread (i.e., startPreviewThread). 1820 final String finalWhiteBalance = whiteBalance; 1821 final String finalFlashMode = flashMode; 1822 final String finalSceneMode = 1823 Parameters.SCENE_MODE_AUTO.equals(sceneMode) 1824 ? SCENE_MODE_OFF 1825 : SCENE_MODE_ON; 1826 1827 mHandler.post(new Runnable() { 1828 public void run() { 1829 mFocusIndicator.setMode(mFocusMode); 1830 mWhitebalanceIndicator.setMode(finalWhiteBalance); 1831 mSceneModeIndicator.setMode(finalSceneMode); 1832 mFlashIndicator.setMode(finalFlashMode); 1833 } 1834 }); 1835 } 1836 1837 private void gotoGallery() { 1838 MenuHelper.gotoCameraImageGallery(this); 1839 } 1840 1841 private void viewLastImage() { 1842 if (mThumbController.isUriValid()) { 1843 Uri targetUri = mThumbController.getUri(); 1844 targetUri = targetUri.buildUpon().appendQueryParameter( 1845 "bucketId", ImageManager.CAMERA_IMAGE_BUCKET_ID).build(); 1846 Intent intent = new Intent(this, ReviewImage.class); 1847 intent.setData(targetUri); 1848 intent.putExtra(MediaStore.EXTRA_FULL_SCREEN, true); 1849 intent.putExtra(MediaStore.EXTRA_SHOW_ACTION_ICONS, true); 1850 intent.putExtra("com.android.camera.ReviewMode", true); 1851 try { 1852 startActivity(intent); 1853 } catch (ActivityNotFoundException ex) { 1854 Log.e(TAG, "review image fail", ex); 1855 } 1856 } else { 1857 Log.e(TAG, "Can't view last image."); 1858 } 1859 } 1860 1861 private void startReceivingLocationUpdates() { 1862 if (mLocationManager != null) { 1863 try { 1864 mLocationManager.requestLocationUpdates( 1865 LocationManager.NETWORK_PROVIDER, 1866 1000, 1867 0F, 1868 mLocationListeners[1]); 1869 } catch (java.lang.SecurityException ex) { 1870 Log.i(TAG, "fail to request location update, ignore", ex); 1871 } catch (IllegalArgumentException ex) { 1872 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1873 } 1874 try { 1875 mLocationManager.requestLocationUpdates( 1876 LocationManager.GPS_PROVIDER, 1877 1000, 1878 0F, 1879 mLocationListeners[0]); 1880 } catch (java.lang.SecurityException ex) { 1881 Log.i(TAG, "fail to request location update, ignore", ex); 1882 } catch (IllegalArgumentException ex) { 1883 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1884 } 1885 } 1886 } 1887 1888 private void stopReceivingLocationUpdates() { 1889 if (mLocationManager != null) { 1890 for (int i = 0; i < mLocationListeners.length; i++) { 1891 try { 1892 mLocationManager.removeUpdates(mLocationListeners[i]); 1893 } catch (Exception ex) { 1894 Log.i(TAG, "fail to remove location listners, ignore", ex); 1895 } 1896 } 1897 } 1898 } 1899 1900 private Location getCurrentLocation() { 1901 // go in best to worst order 1902 for (int i = 0; i < mLocationListeners.length; i++) { 1903 Location l = mLocationListeners[i].current(); 1904 if (l != null) return l; 1905 } 1906 return null; 1907 } 1908 1909 private boolean isCameraIdle() { 1910 return mStatus == IDLE && mFocusState == FOCUS_NOT_STARTED; 1911 } 1912 1913 private boolean isImageCaptureIntent() { 1914 String action = getIntent().getAction(); 1915 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 1916 } 1917 1918 private void setupCaptureParams() { 1919 Bundle myExtras = getIntent().getExtras(); 1920 if (myExtras != null) { 1921 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 1922 mCropValue = myExtras.getString("crop"); 1923 } 1924 } 1925 1926 private void showPostCaptureAlert() { 1927 if (mIsImageCaptureIntent) { 1928 findViewById(R.id.shutter_button).setVisibility(View.INVISIBLE); 1929 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1930 for (int id : pickIds) { 1931 View button = findViewById(id); 1932 ((View) button.getParent()).setVisibility(View.VISIBLE); 1933 } 1934 } 1935 } 1936 1937 private void hidePostCaptureAlert() { 1938 if (mIsImageCaptureIntent) { 1939 findViewById(R.id.shutter_button).setVisibility(View.VISIBLE); 1940 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1941 for (int id : pickIds) { 1942 View button = findViewById(id); 1943 ((View) button.getParent()).setVisibility(View.GONE); 1944 } 1945 } 1946 } 1947 1948 private int calculatePicturesRemaining() { 1949 mPicturesRemaining = MenuHelper.calculatePicturesRemaining(); 1950 return mPicturesRemaining; 1951 } 1952 1953 @Override 1954 public boolean onPrepareOptionsMenu(Menu menu) { 1955 super.onPrepareOptionsMenu(menu); 1956 // Only show the menu when camera is idle. 1957 for (int i = 0; i < menu.size(); i++) { 1958 menu.getItem(i).setVisible(isCameraIdle()); 1959 } 1960 1961 return true; 1962 } 1963 1964 @Override 1965 public boolean onCreateOptionsMenu(Menu menu) { 1966 super.onCreateOptionsMenu(menu); 1967 1968 if (mIsImageCaptureIntent) { 1969 // No options menu for attach mode. 1970 return false; 1971 } else { 1972 addBaseMenuItems(menu); 1973 } 1974 return true; 1975 } 1976 1977 private void addBaseMenuItems(Menu menu) { 1978 MenuItem gallery = menu.add(Menu.NONE, Menu.NONE, 1979 MenuHelper.POSITION_GOTO_GALLERY, 1980 R.string.camera_gallery_photos_text) 1981 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1982 public boolean onMenuItemClick(MenuItem item) { 1983 gotoGallery(); 1984 return true; 1985 } 1986 }); 1987 gallery.setIcon(android.R.drawable.ic_menu_gallery); 1988 mGalleryItems.add(gallery); 1989 1990 MenuItem item = menu.add(Menu.NONE, Menu.NONE, 1991 MenuHelper.POSITION_CAMERA_SETTING, R.string.settings) 1992 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1993 public boolean onMenuItemClick(MenuItem item) { 1994 showOnScreenSettings(); 1995 return true; 1996 } 1997 }); 1998 item.setIcon(android.R.drawable.ic_menu_preferences); 1999 } 2000 2001 public boolean onSwitchChanged(Switcher source, boolean onOff) { 2002 if (onOff == SWITCH_VIDEO) { 2003 if (!isCameraIdle()) return false; 2004 MenuHelper.gotoVideoMode(this); 2005 finish(); 2006 } 2007 return true; 2008 } 2009 2010 public void onSharedPreferenceChanged( 2011 SharedPreferences preferences, String key) { 2012 // ignore the events after "onPause()" 2013 if (mPausing) return; 2014 2015 if (CameraSettings.KEY_RECORD_LOCATION.equals(key)) { 2016 mRecordLocation = preferences.getBoolean(key, false); 2017 if (mRecordLocation) { 2018 startReceivingLocationUpdates(); 2019 } else { 2020 stopReceivingLocationUpdates(); 2021 } 2022 } else { 2023 // All preferences except RECORD_LOCATION are camera parameters. 2024 // Call setCameraParameters to take effect now. 2025 setCameraParameters(); 2026 } 2027 } 2028 2029 @Override 2030 public void onUserInteraction() { 2031 super.onUserInteraction(); 2032 keepScreenOnAwhile(); 2033 } 2034 2035 private void resetScreenOn() { 2036 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2037 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2038 } 2039 2040 private void keepScreenOnAwhile() { 2041 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2042 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2043 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2044 } 2045 2046 private static String[] mQualityStrings = {"superfine", "fine", "normal"}; 2047 private static String[] mQualityNumbers = SystemProperties.get( 2048 "ro.media.enc.jpeg.quality", "85,75,65").split(","); 2049 private static int DEFAULT_QUALITY = 85; 2050 2051 // Translate from a quality string to a quality number using the system 2052 // properties. 2053 private static int getQualityNumber(String jpegQuality) { 2054 // Find the index of the input string 2055 int index = Util.indexOf(mQualityStrings, jpegQuality); 2056 2057 if (index == -1 || index > mQualityNumbers.length - 1) { 2058 return DEFAULT_QUALITY; 2059 } 2060 2061 try { 2062 return Integer.parseInt(mQualityNumbers[index]); 2063 } catch (NumberFormatException ex) { 2064 return DEFAULT_QUALITY; 2065 } 2066 } 2067} 2068 2069class FocusRectangle extends View { 2070 2071 @SuppressWarnings("unused") 2072 private static final String TAG = "FocusRectangle"; 2073 2074 public FocusRectangle(Context context, AttributeSet attrs) { 2075 super(context, attrs); 2076 } 2077 2078 private void setDrawable(int resid) { 2079 setBackgroundDrawable(getResources().getDrawable(resid)); 2080 } 2081 2082 public void showStart() { 2083 setDrawable(R.drawable.focus_focusing); 2084 } 2085 2086 public void showSuccess() { 2087 setDrawable(R.drawable.focus_focused); 2088 } 2089 2090 public void showFail() { 2091 setDrawable(R.drawable.focus_focus_failed); 2092 } 2093 2094 public void clear() { 2095 setBackgroundDrawable(null); 2096 } 2097} 2098