Camera.java revision 4fc134dffebaddec5bcdb26dc1caeb4ab6f7f91c
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.camera; 18 19import com.android.camera.gallery.Cancelable; 20import com.android.camera.gallery.IImage; 21import com.android.camera.gallery.IImageList; 22 23import android.app.Activity; 24import android.content.ActivityNotFoundException; 25import android.content.BroadcastReceiver; 26import android.content.ContentResolver; 27import android.content.Context; 28import android.content.Intent; 29import android.content.IntentFilter; 30import android.content.SharedPreferences; 31import android.graphics.Bitmap; 32import android.graphics.BitmapFactory; 33import android.graphics.Matrix; 34import android.graphics.drawable.BitmapDrawable; 35import android.hardware.Camera.PictureCallback; 36import android.hardware.Camera.Size; 37import android.location.Location; 38import android.location.LocationManager; 39import android.location.LocationProvider; 40import android.media.AudioManager; 41import android.media.ToneGenerator; 42import android.net.Uri; 43import android.os.Bundle; 44import android.os.Debug; 45import android.os.Environment; 46import android.os.Handler; 47import android.os.Message; 48import android.os.SystemClock; 49import android.preference.PreferenceManager; 50import android.provider.MediaStore; 51import android.text.format.DateFormat; 52import android.util.AttributeSet; 53import android.util.Log; 54import android.view.Gravity; 55import android.view.KeyEvent; 56import android.view.Menu; 57import android.view.MenuItem; 58import android.view.MotionEvent; 59import android.view.OrientationEventListener; 60import android.view.SurfaceHolder; 61import android.view.View; 62import android.view.ViewGroup; 63import android.view.Window; 64import android.view.WindowManager; 65import android.view.MenuItem.OnMenuItemClickListener; 66import android.view.animation.AlphaAnimation; 67import android.view.animation.Animation; 68import android.widget.ImageView; 69import android.widget.Toast; 70import android.widget.ZoomButtonsController; 71 72import java.io.File; 73import java.io.FileNotFoundException; 74import java.io.FileOutputStream; 75import java.io.IOException; 76import java.io.OutputStream; 77import java.util.ArrayList; 78import java.util.StringTokenizer; 79 80/** 81 * Activity of the Camera which used to see preview and take pictures. 82 */ 83public class Camera extends Activity implements View.OnClickListener, 84 ShutterButton.OnShutterButtonListener, SurfaceHolder.Callback { 85 86 private static final String TAG = "camera"; 87 88 private static final int CROP_MSG = 1; 89 private static final int FIRST_TIME_INIT = 2; 90 private static final int RESTART_PREVIEW = 3; 91 private static final int CLEAR_SCREEN_DELAY = 4; 92 private static final int STORE_IMAGE_DONE = 5; 93 94 private static final int SCREEN_DELAY = 2 * 60 * 1000; 95 private static final int FOCUS_BEEP_VOLUME = 100; 96 97 public static final int MENU_SWITCH_TO_VIDEO = 0; 98 public static final int MENU_SWITCH_TO_CAMERA = 1; 99 public static final int MENU_FLASH_SETTING = 2; 100 public static final int MENU_FLASH_AUTO = 3; 101 public static final int MENU_FLASH_ON = 4; 102 public static final int MENU_FLASH_OFF = 5; 103 public static final int MENU_SETTINGS = 6; 104 public static final int MENU_GALLERY_PHOTOS = 7; 105 public static final int MENU_GALLERY_VIDEOS = 8; 106 public static final int MENU_SAVE_SELECT_PHOTOS = 30; 107 public static final int MENU_SAVE_NEW_PHOTO = 31; 108 public static final int MENU_SAVE_GALLERY_PHOTO = 34; 109 public static final int MENU_SAVE_GALLERY_VIDEO_PHOTO = 35; 110 public static final int MENU_SAVE_CAMERA_DONE = 36; 111 public static final int MENU_SAVE_CAMERA_VIDEO_DONE = 37; 112 113 private android.hardware.Camera.Parameters mParameters; 114 private int mZoomIndex = 0; // The index of the current zoom value. 115 private String[] mZoomValues; // All possible zoom values. 116 117 // The parameter strings to communicate with camera driver. 118 public static final String PARM_ZOOM = "zoom"; 119 public static final String PARM_WHITE_BALANCE = "whitebalance"; 120 public static final String PARM_EFFECT = "effect"; 121 public static final String PARM_BRIGHTNESS = "exposure-offset"; 122 public static final String PARM_PICTURE_SIZE = "picture-size"; 123 public static final String PARM_JPEG_QUALITY = "jpeg-quality"; 124 public static final String PARM_ISO = "iso"; 125 public static final String PARM_ROTATION = "rotation"; 126 public static final String PARM_GPS_LATITUDE = "gps-latitude"; 127 public static final String PARM_GPS_LONGITUDE = "gps-longitude"; 128 public static final String PARM_GPS_ALTITUDE = "gps-altitude"; 129 public static final String PARM_GPS_TIMESTAMP = "gps-timestamp"; 130 public static final String SUPPORTED_ZOOM = "zoom-values"; 131 public static final String SUPPORTED_WHITE_BALANCE = "whitebalance-values"; 132 public static final String SUPPORTED_EFFECT = "effect-values"; 133 public static final String SUPPORTED_BRIGHTNESS = "exposure-offset-values"; 134 public static final String SUPPORTED_PICTURE_SIZE = "picture-size-values"; 135 public static final String SUPPORTED_ISO = "iso-values"; 136 137 private OrientationEventListener mOrientationListener; 138 private int mLastOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 139 private SharedPreferences mPreferences; 140 141 private static final int IDLE = 1; 142 private static final int SNAPSHOT_IN_PROGRESS = 2; 143 144 private int mStatus = IDLE; 145 private static final String sTempCropFilename = "crop-temp"; 146 147 private android.hardware.Camera mCameraDevice; 148 private VideoPreview mSurfaceView; 149 private SurfaceHolder mSurfaceHolder = null; 150 private ShutterButton mShutterButton; 151 private FocusRectangle mFocusRectangle; 152 private ImageView mGpsIndicator; 153 private ToneGenerator mFocusToneGenerator; 154 private ZoomButtonsController mZoomButtons; 155 156 // mPostCaptureAlert, mLastPictureButton, mThumbController 157 // are non-null only if isImageCaptureIntent() is true. 158 private View mPostCaptureAlert; 159 private ImageView mLastPictureButton; 160 private ThumbnailController mThumbController; 161 162 private int mViewFinderWidth, mViewFinderHeight; 163 164 private ImageCapture mImageCapture = null; 165 166 private boolean mPreviewing; 167 private boolean mPausing; 168 private boolean mFirstTimeInitialized; 169 private boolean mIsImageCaptureIntent; 170 private boolean mRecordLocation; 171 172 private static final int FOCUS_NOT_STARTED = 0; 173 private static final int FOCUSING = 1; 174 private static final int FOCUSING_SNAP_ON_FINISH = 2; 175 private static final int FOCUS_SUCCESS = 3; 176 private static final int FOCUS_FAIL = 4; 177 private int mFocusState = FOCUS_NOT_STARTED; 178 179 private ContentResolver mContentResolver; 180 private boolean mDidRegister = false; 181 182 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 183 184 private LocationManager mLocationManager = null; 185 186 // Use OneShotPreviewCallback to measure the time between 187 // JpegPictureCallback and preview. 188 private final OneShotPreviewCallback mOneShotPreviewCallback = 189 new OneShotPreviewCallback(); 190 private final ShutterCallback mShutterCallback = new ShutterCallback(); 191 private final RawPictureCallback mRawPictureCallback = 192 new RawPictureCallback(); 193 private final AutoFocusCallback mAutoFocusCallback = 194 new AutoFocusCallback(); 195 private long mFocusStartTime; 196 private long mFocusCallbackTime; 197 private long mCaptureStartTime; 198 private long mShutterCallbackTime; 199 private long mRawPictureCallbackTime; 200 private long mJpegPictureCallbackTime; 201 private int mPicturesRemaining; 202 203 //Add the camera latency time 204 public static long mAutoFocusTime; 205 public static long mShutterLag; 206 public static long mShutterAndRawPictureCallbackTime; 207 public static long mJpegPictureCallbackTimeLag; 208 public static long mRawPictureAndJpegPictureCallbackTime; 209 210 // Focus mode. Options are pref_camera_focusmode_entryvalues. 211 private String mFocusMode; 212 213 private Thread mStoreImageThread = null; 214 private final Handler mHandler = new MainHandler(); 215 216 private interface Capturer { 217 Uri getLastCaptureUri(); 218 void onSnap(); 219 } 220 221 /** 222 * This Handler is used to post message back onto the main thread of the 223 * application 224 */ 225 private class MainHandler extends Handler { 226 @Override 227 public void handleMessage(Message msg) { 228 switch (msg.what) { 229 case RESTART_PREVIEW: { 230 restartPreview(); 231 break; 232 } 233 234 case STORE_IMAGE_DONE: { 235 if (!mIsImageCaptureIntent) { 236 setLastPictureThumb((byte[])msg.obj, mImageCapture.getLastCaptureUri()); 237 updateThumbnailButton(); 238 } else { 239 showPostCaptureAlert(); 240 } 241 mStoreImageThread = null; 242 break; 243 } 244 245 case CLEAR_SCREEN_DELAY: { 246 getWindow().clearFlags( 247 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 248 break; 249 } 250 251 case FIRST_TIME_INIT: { 252 initializeFirstTime(); 253 break; 254 } 255 } 256 } 257 } 258 259 // Snapshots can only be taken after this is called. It should be called 260 // once only. We could have done these things in onCreate() but we want to 261 // make preview screen appear as soon as possible. 262 void initializeFirstTime() { 263 if (mFirstTimeInitialized) return; 264 265 // Create orientation listenter. This should be done first because it 266 // takes some time to get first orientation. 267 mOrientationListener = 268 new OrientationEventListener(Camera.this) { 269 @Override 270 public void onOrientationChanged(int orientation) { 271 // We keep the last known orientation. So if the user 272 // first orient the camera then point the camera to 273 // floor/sky, we still have the correct orientation. 274 if (orientation != ORIENTATION_UNKNOWN) { 275 mLastOrientation = orientation; 276 } 277 } 278 }; 279 mOrientationListener.enable(); 280 281 // Initialize location sevice. 282 mLocationManager = (LocationManager) 283 getSystemService(Context.LOCATION_SERVICE); 284 readPreference(); 285 if (mRecordLocation) startReceivingLocationUpdates(); 286 287 // Initialize last picture button. 288 mContentResolver = getContentResolver(); 289 if (!mIsImageCaptureIntent) { 290 findViewById(R.id.video_button).setOnClickListener(this); 291 mLastPictureButton = (ImageView) findViewById(R.id.review_button); 292 mLastPictureButton.setOnClickListener(this); 293 mThumbController = new ThumbnailController( 294 mLastPictureButton, mContentResolver); 295 mThumbController.loadData(ImageManager.getLastImageThumbPath()); 296 // Update last image thumbnail. 297 updateThumbnailButton(); 298 } else { 299 findViewById(R.id.review_button).setVisibility(View.INVISIBLE); 300 findViewById(R.id.video_button).setVisibility(View.INVISIBLE); 301 ViewGroup cameraView = (ViewGroup) findViewById(R.id.camera); 302 getLayoutInflater().inflate( 303 R.layout.post_picture_panel, cameraView); 304 mPostCaptureAlert = findViewById(R.id.post_picture_panel); 305 } 306 307 findViewById(R.id.photo_indicator).setVisibility(View.VISIBLE); 308 // Initialize shutter button. 309 mShutterButton = (ShutterButton) findViewById(R.id.camera_button); 310 mShutterButton.setOnShutterButtonListener(this); 311 mShutterButton.setVisibility(View.VISIBLE); 312 313 mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); 314 updateFocusIndicator(); 315 316 // Initialize GPS indicator. 317 mGpsIndicator = (ImageView) findViewById(R.id.gps_indicator); 318 mGpsIndicator.setImageResource(R.drawable.ic_gps_active_camera); 319 320 ImageManager.ensureOSXCompatibleFolder(); 321 322 calculatePicturesRemaining(); 323 324 installIntentFilter(); 325 326 initializeFocusTone(); 327 328 // Disable zoom until driver is ready. 329 // TODO: enable this. 330 //initializeZoom(); 331 332 mFirstTimeInitialized = true; 333 } 334 335 private void updateThumbnailButton() { 336 if (!mThumbController.isUriValid()) { 337 updateLastImage(); 338 } 339 mThumbController.updateDisplayIfNeeded(); 340 } 341 342 // If the activity is paused and resumed, this method will be called in 343 // onResume. 344 void initializeSecondTime() { 345 // Start orientation listener as soon as possible because it takes 346 // some time to get first orientation. 347 mOrientationListener.enable(); 348 349 // Start location update if needed. 350 readPreference(); 351 if (mRecordLocation) startReceivingLocationUpdates(); 352 353 installIntentFilter(); 354 355 initializeFocusTone(); 356 357 if (!mIsImageCaptureIntent) { 358 updateThumbnailButton(); 359 } 360 } 361 362 private void initializeZoom() { 363 String zoomValuesStr = mParameters.get(SUPPORTED_ZOOM); 364 if (zoomValuesStr == null) return; 365 366 mZoomValues = getZoomValues(zoomValuesStr); 367 if (mZoomValues == null) return; 368 369 mZoomButtons = new ZoomButtonsController(mSurfaceView); 370 mZoomButtons.setAutoDismissed(true); 371 mZoomButtons.setOnZoomListener( 372 new ZoomButtonsController.OnZoomListener() { 373 public void onVisibilityChanged(boolean visible) { 374 if (visible) { 375 updateZoomButtonsEnabled(); 376 } 377 } 378 379 public void onZoom(boolean zoomIn) { 380 if (zoomIn) { 381 zoomIn(); 382 } else { 383 zoomOut(); 384 } 385 updateZoomButtonsEnabled(); 386 } 387 }); 388 } 389 390 private void zoomIn() { 391 if (mZoomIndex < mZoomValues.length - 1) { 392 mZoomIndex++; 393 mParameters.set(PARM_ZOOM, mZoomValues[mZoomIndex]); 394 mCameraDevice.setParameters(mParameters); 395 } 396 } 397 398 private void zoomOut() { 399 if (mZoomIndex > 0) { 400 mZoomIndex--; 401 mParameters.set(PARM_ZOOM, mZoomValues[mZoomIndex]); 402 mCameraDevice.setParameters(mParameters); 403 } 404 } 405 406 private void updateZoomButtonsEnabled() { 407 mZoomButtons.setZoomInEnabled(mZoomIndex < mZoomValues.length - 1); 408 mZoomButtons.setZoomOutEnabled(mZoomIndex > 0); 409 } 410 411 private String[] getZoomValues(String zoomValuesStr) { 412 ArrayList<String> list = new ArrayList<String>(); 413 String[] zoomValues = null; 414 StringTokenizer tokenizer = new StringTokenizer(zoomValuesStr, ","); 415 416 while (tokenizer.hasMoreElements()) { 417 list.add(tokenizer.nextToken()); 418 } 419 if (list.size() > 0) { 420 zoomValues = list.toArray(new String[list.size()]); 421 } 422 return zoomValues; 423 } 424 425 426 LocationListener [] mLocationListeners = new LocationListener[] { 427 new LocationListener(LocationManager.GPS_PROVIDER), 428 new LocationListener(LocationManager.NETWORK_PROVIDER) 429 }; 430 431 432 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 433 @Override 434 public void onReceive(Context context, Intent intent) { 435 String action = intent.getAction(); 436 if (action.equals(Intent.ACTION_MEDIA_MOUNTED)) { 437 // SD card available 438 updateStorageHint(calculatePicturesRemaining()); 439 } else if (action.equals(Intent.ACTION_MEDIA_UNMOUNTED) || 440 action.equals(Intent.ACTION_MEDIA_CHECKING)) { 441 // SD card unavailable 442 mPicturesRemaining = MenuHelper.NO_STORAGE_ERROR; 443 updateStorageHint(mPicturesRemaining); 444 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_STARTED)) { 445 Toast.makeText(Camera.this, 446 getResources().getString(R.string.wait), 5000); 447 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 448 updateStorageHint(); 449 } 450 } 451 }; 452 453 private class LocationListener 454 implements android.location.LocationListener { 455 Location mLastLocation; 456 boolean mValid = false; 457 String mProvider; 458 459 public LocationListener(String provider) { 460 mProvider = provider; 461 mLastLocation = new Location(mProvider); 462 } 463 464 public void onLocationChanged(Location newLocation) { 465 if (newLocation.getLatitude() == 0.0 466 && newLocation.getLongitude() == 0.0) { 467 // Hack to filter out 0.0,0.0 locations 468 return; 469 } 470 // If GPS is available before start camera, we won't get status 471 // update so update GPS indicator when we receive data. 472 if (mRecordLocation 473 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 474 mGpsIndicator.setVisibility(View.VISIBLE); 475 } 476 mLastLocation.set(newLocation); 477 mValid = true; 478 } 479 480 public void onProviderEnabled(String provider) { 481 } 482 483 public void onProviderDisabled(String provider) { 484 mValid = false; 485 } 486 487 public void onStatusChanged( 488 String provider, int status, Bundle extras) { 489 switch(status) { 490 case LocationProvider.OUT_OF_SERVICE: 491 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 492 mValid = false; 493 if (mRecordLocation && 494 LocationManager.GPS_PROVIDER.equals(provider)) { 495 mGpsIndicator.setVisibility(View.INVISIBLE); 496 } 497 break; 498 } 499 } 500 } 501 502 public Location current() { 503 return mValid ? mLastLocation : null; 504 } 505 } 506 507 private final class OneShotPreviewCallback 508 implements android.hardware.Camera.PreviewCallback { 509 public void onPreviewFrame(byte[] data, 510 android.hardware.Camera camera) { 511 long now = System.currentTimeMillis(); 512 if (mJpegPictureCallbackTime != 0) { 513 mJpegPictureCallbackTimeLag = now - mJpegPictureCallbackTime; 514 Log.v(TAG, "mJpegPictureCallbackTimeLag = " 515 + mJpegPictureCallbackTimeLag + "ms"); 516 mJpegPictureCallbackTime = 0; 517 } 518 } 519 } 520 521 private final class ShutterCallback 522 implements android.hardware.Camera.ShutterCallback { 523 public void onShutter() { 524 mShutterCallbackTime = System.currentTimeMillis(); 525 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 526 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 527 clearFocusState(); 528 } 529 } 530 531 private final class RawPictureCallback implements PictureCallback { 532 public void onPictureTaken( 533 byte [] rawData, android.hardware.Camera camera) { 534 mRawPictureCallbackTime = System.currentTimeMillis(); 535 mShutterAndRawPictureCallbackTime = 536 mRawPictureCallbackTime - mShutterCallbackTime; 537 Log.v(TAG, "mShutterAndRawPictureCallbackTime = " 538 + mShutterAndRawPictureCallbackTime + "ms"); 539 } 540 } 541 542 private final class JpegPictureCallback implements PictureCallback { 543 Location mLocation; 544 545 public JpegPictureCallback(Location loc) { 546 mLocation = loc; 547 } 548 549 public void onPictureTaken( 550 final byte [] jpegData, final android.hardware.Camera camera) { 551 if (mPausing) { 552 return; 553 } 554 555 mJpegPictureCallbackTime = System.currentTimeMillis(); 556 mRawPictureAndJpegPictureCallbackTime = 557 mJpegPictureCallbackTime - mRawPictureCallbackTime; 558 Log.v(TAG, "mRawPictureAndJpegPictureCallbackTime = " 559 + mRawPictureAndJpegPictureCallbackTime +"ms"); 560 if (jpegData != null) { 561 mStoreImageThread = new Thread() { 562 public void run() { 563 mImageCapture.storeImage(jpegData, camera, mLocation); 564 } 565 }; 566 mStoreImageThread.start(); 567 } 568 569 if (!mIsImageCaptureIntent) { 570 long delay = 1500 - ( 571 System.currentTimeMillis() - mRawPictureCallbackTime); 572 mHandler.sendEmptyMessageDelayed( 573 RESTART_PREVIEW, Math.max(delay, 0)); 574 } 575 } 576 } 577 578 private final class AutoFocusCallback 579 implements android.hardware.Camera.AutoFocusCallback { 580 public void onAutoFocus( 581 boolean focused, android.hardware.Camera camera) { 582 mFocusCallbackTime = System.currentTimeMillis(); 583 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 584 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 585 if (mFocusState == FOCUSING_SNAP_ON_FINISH) { 586 // Take the picture no matter focus succeeds or fails. No need 587 // to play the AF sound if we're about to play the shutter 588 // sound. 589 if (focused) { 590 mFocusState = FOCUS_SUCCESS; 591 } else { 592 mFocusState = FOCUS_FAIL; 593 } 594 mImageCapture.onSnap(); 595 } else if (mFocusState == FOCUSING) { 596 // User is half-pressing the focus key. Play the focus tone. 597 // Do not take the picture now. 598 ToneGenerator tg = mFocusToneGenerator; 599 if (tg != null) { 600 tg.startTone(ToneGenerator.TONE_PROP_BEEP2); 601 } 602 if (focused) { 603 mFocusState = FOCUS_SUCCESS; 604 } else { 605 mFocusState = FOCUS_FAIL; 606 } 607 } else if (mFocusState == FOCUS_NOT_STARTED) { 608 // User has released the focus key before focus completes. 609 // Do nothing. 610 } 611 updateFocusIndicator(); 612 } 613 } 614 615 private class ImageCapture implements Capturer { 616 617 private boolean mCancel = false; 618 619 private Uri mLastContentUri; 620 private Cancelable<Void> mAddImageCancelable; 621 622 Bitmap mCaptureOnlyBitmap; 623 624 private void storeImage(byte[] data, Location loc) { 625 try { 626 long dateTaken = System.currentTimeMillis(); 627 String name = createName(dateTaken) + ".jpg"; 628 mLastContentUri = ImageManager.addImage( 629 mContentResolver, 630 name, 631 dateTaken, 632 loc, // location for the database goes here 633 0, // the dsp will use the right orientation so 634 // don't "double set it" 635 ImageManager.CAMERA_IMAGE_BUCKET_NAME, 636 name); 637 if (mLastContentUri == null) { 638 // this means we got an error 639 mCancel = true; 640 } 641 if (!mCancel) { 642 mAddImageCancelable = ImageManager.storeImage( 643 mLastContentUri, mContentResolver, 644 0, null, data); 645 mAddImageCancelable.get(); 646 mAddImageCancelable = null; 647 ImageManager.setImageSize(mContentResolver, mLastContentUri, 648 new File(ImageManager.CAMERA_IMAGE_BUCKET_NAME, 649 name).length()); 650 } 651 } catch (Exception ex) { 652 Log.e(TAG, "Exception while compressing image.", ex); 653 } 654 } 655 656 public void storeImage( 657 final byte[] data, android.hardware.Camera camera, Location loc) { 658 Message msg = mHandler.obtainMessage(STORE_IMAGE_DONE); 659 if (!mIsImageCaptureIntent) { 660 storeImage(data, loc); 661 sendBroadcast(new Intent( 662 "com.android.camera.NEW_PICTURE", mLastContentUri)); 663 msg.obj = data; 664 } else { 665 BitmapFactory.Options options = new BitmapFactory.Options(); 666 options.inSampleSize = 4; 667 668 mCaptureOnlyBitmap = BitmapFactory.decodeByteArray( 669 data, 0, data.length, options); 670 } 671 mHandler.sendMessage(msg); 672 } 673 674 /** 675 * Initiate the capture of an image. 676 */ 677 public void initiate() { 678 if (mCameraDevice == null) { 679 return; 680 } 681 682 mCancel = false; 683 684 capture(); 685 } 686 687 public Uri getLastCaptureUri() { 688 return mLastContentUri; 689 } 690 691 public Bitmap getLastBitmap() { 692 return mCaptureOnlyBitmap; 693 } 694 695 private void capture() { 696 mCaptureOnlyBitmap = null; 697 698 int orientation = mLastOrientation; 699 if (orientation != OrientationEventListener.ORIENTATION_UNKNOWN) { 700 orientation += 90; 701 } 702 orientation = ImageManager.roundOrientation(orientation); 703 Log.v(TAG, "mLastOrientation = " + mLastOrientation 704 + ", orientation = " + orientation); 705 706 mParameters.set(PARM_ROTATION, orientation); 707 708 Location loc = mRecordLocation ? getCurrentLocation() : null; 709 710 mParameters.remove(PARM_GPS_LATITUDE); 711 mParameters.remove(PARM_GPS_LONGITUDE); 712 mParameters.remove(PARM_GPS_ALTITUDE); 713 mParameters.remove(PARM_GPS_TIMESTAMP); 714 715 if (loc != null) { 716 double lat = loc.getLatitude(); 717 double lon = loc.getLongitude(); 718 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 719 720 if (hasLatLon) { 721 String latString = String.valueOf(lat); 722 String lonString = String.valueOf(lon); 723 mParameters.set(PARM_GPS_LATITUDE, latString); 724 mParameters.set(PARM_GPS_LONGITUDE, lonString); 725 if (loc.hasAltitude()) { 726 mParameters.set(PARM_GPS_ALTITUDE, 727 String.valueOf(loc.getAltitude())); 728 } else { 729 // for NETWORK_PROVIDER location provider, we may have 730 // no altitude information, but the driver needs it, so 731 // we fake one. 732 mParameters.set(PARM_GPS_ALTITUDE, "0"); 733 } 734 if (loc.getTime() != 0) { 735 // Location.getTime() is UTC in milliseconds. 736 // gps-timestamp is UTC in seconds. 737 long utcTimeSeconds = loc.getTime() / 1000; 738 mParameters.set(PARM_GPS_TIMESTAMP, 739 String.valueOf(utcTimeSeconds)); 740 } 741 } else { 742 loc = null; 743 } 744 } 745 746 mCameraDevice.setParameters(mParameters); 747 748 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 749 new JpegPictureCallback(loc)); 750 mPreviewing = false; 751 } 752 753 public void onSnap() { 754 // If we are already in the middle of taking a snapshot then ignore. 755 if (mPausing || mStatus == SNAPSHOT_IN_PROGRESS) { 756 return; 757 } 758 mCaptureStartTime = System.currentTimeMillis(); 759 760 // Don't check the filesystem here, we can't afford the latency. 761 // Instead, check the cached value which was calculated when the 762 // preview was restarted. 763 if (mPicturesRemaining < 1) { 764 updateStorageHint(mPicturesRemaining); 765 return; 766 } 767 768 mStatus = SNAPSHOT_IN_PROGRESS; 769 770 mImageCapture.initiate(); 771 } 772 773 private void clearLastBitmap() { 774 if (mCaptureOnlyBitmap != null) { 775 mCaptureOnlyBitmap.recycle(); 776 mCaptureOnlyBitmap = null; 777 } 778 } 779 } 780 781 private void setLastPictureThumb(byte[] data, Uri uri) { 782 BitmapFactory.Options options = new BitmapFactory.Options(); 783 options.inSampleSize = 16; 784 Bitmap lastPictureThumb = 785 BitmapFactory.decodeByteArray(data, 0, data.length, options); 786 mThumbController.setData(uri, lastPictureThumb); 787 } 788 789 private static String createName(long dateTaken) { 790 return DateFormat.format("yyyy-MM-dd kk.mm.ss", dateTaken).toString(); 791 } 792 793 public static Matrix getDisplayMatrix(Bitmap b, ImageView v) { 794 Matrix m = new Matrix(); 795 float bw = b.getWidth(); 796 float bh = b.getHeight(); 797 float vw = v.getWidth(); 798 float vh = v.getHeight(); 799 float scale, x, y; 800 if (bw * vh > vw * bh) { 801 scale = vh / bh; 802 x = (vw - scale * bw) * 0.5F; 803 y = 0; 804 } else { 805 scale = vw / bw; 806 x = 0; 807 y = (vh - scale * bh) * 0.5F; 808 } 809 m.setScale(scale, scale, 0.5F, 0.5F); 810 m.postTranslate(x, y); 811 return m; 812 } 813 814 @Override 815 public void onCreate(Bundle icicle) { 816 super.onCreate(icicle); 817 818 /* 819 * To reduce startup time, we open camera device in another thread. 820 * We make sure the camera is opened at the end of onCreate. 821 */ 822 Thread openCameraThread = new Thread(new Runnable() { 823 public void run() { 824 mCameraDevice = CameraHolder.instance().open(); 825 } 826 }); 827 openCameraThread.start(); 828 829 mPreferences = PreferenceManager.getDefaultSharedPreferences(this); 830 831 Window win = getWindow(); 832 win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 833 setContentView(R.layout.camera); 834 835 mSurfaceView = (VideoPreview) findViewById(R.id.camera_preview); 836 837 // don't set mSurfaceHolder here. We have it set ONLY within 838 // surfaceChanged / surfaceDestroyed, other parts of the code 839 // assume that when it is set, the surface is also set. 840 SurfaceHolder holder = mSurfaceView.getHolder(); 841 holder.addCallback(this); 842 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 843 844 mIsImageCaptureIntent = isImageCaptureIntent(); 845 getLayoutInflater().inflate( 846 R.layout.button_bar, (ViewGroup) findViewById(R.id.camera)); 847 848 // Make sure the services are loaded. 849 try { 850 openCameraThread.join(); 851 } catch (InterruptedException ex) { 852 // ignore 853 } 854 } 855 856 @Override 857 public void onStart() { 858 super.onStart(); 859 860 Thread t = new Thread(new Runnable() { 861 public void run() { 862 final boolean storageOK = calculatePicturesRemaining() > 0; 863 if (!storageOK) { 864 mHandler.post(new Runnable() { 865 public void run() { 866 updateStorageHint(mPicturesRemaining); 867 } 868 }); 869 } 870 } 871 }); 872 t.start(); 873 } 874 875 public void onClick(View v) { 876 switch (v.getId()) { 877 case R.id.video_button: 878 if (isCameraIdle()) { 879 MenuHelper.gotoVideoMode(this); 880 } 881 break; 882 case R.id.review_button: 883 if (isCameraIdle()) { 884 // Make sure image storing has completed before viewing 885 // last image. 886 waitForStoreImageThread(); 887 viewLastImage(); 888 } 889 break; 890 case R.id.attach: 891 doAttach(); 892 break; 893 case R.id.cancel: 894 doCancel(); 895 } 896 } 897 898 private void doAttach() { 899 if (mPausing) { 900 return; 901 } 902 Bitmap bitmap = mImageCapture.getLastBitmap(); 903 904 String cropValue = null; 905 Uri saveUri = null; 906 907 Bundle myExtras = getIntent().getExtras(); 908 if (myExtras != null) { 909 saveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 910 cropValue = myExtras.getString("crop"); 911 } 912 913 914 if (cropValue == null) { 915 // First handle the no crop case -- just return the value. If the 916 // caller specifies a "save uri" then write the data to it's 917 // stream. Otherwise, pass back a scaled down version of the bitmap 918 // directly in the extras. 919 if (saveUri != null) { 920 OutputStream outputStream = null; 921 try { 922 outputStream = mContentResolver.openOutputStream(saveUri); 923 bitmap.compress(Bitmap.CompressFormat.JPEG, 75, 924 outputStream); 925 outputStream.close(); 926 927 setResult(RESULT_OK); 928 finish(); 929 } catch (IOException ex) { 930 // ignore exception 931 } finally { 932 if (outputStream != null) { 933 try { 934 outputStream.close(); 935 } catch (IOException ex) { 936 // ignore exception 937 } 938 } 939 } 940 } else { 941 float scale = .5F; 942 Matrix m = new Matrix(); 943 m.setScale(scale, scale); 944 945 bitmap = Bitmap.createBitmap(bitmap, 0, 0, 946 bitmap.getWidth(), 947 bitmap.getHeight(), 948 m, true); 949 950 setResult(RESULT_OK, 951 new Intent("inline-data").putExtra("data", bitmap)); 952 finish(); 953 } 954 } else { 955 // Save the image to a temp file and invoke the cropper 956 Uri tempUri = null; 957 FileOutputStream tempStream = null; 958 try { 959 File path = getFileStreamPath(sTempCropFilename); 960 path.delete(); 961 tempStream = openFileOutput(sTempCropFilename, 0); 962 bitmap.compress(Bitmap.CompressFormat.JPEG, 75, tempStream); 963 tempStream.close(); 964 tempUri = Uri.fromFile(path); 965 } catch (FileNotFoundException ex) { 966 setResult(Activity.RESULT_CANCELED); 967 finish(); 968 return; 969 } catch (IOException ex) { 970 setResult(Activity.RESULT_CANCELED); 971 finish(); 972 return; 973 } finally { 974 if (tempStream != null) { 975 try { 976 tempStream.close(); 977 } catch (IOException ex) { 978 // ignore exception 979 } 980 } 981 } 982 983 Bundle newExtras = new Bundle(); 984 if (cropValue.equals("circle")) { 985 newExtras.putString("circleCrop", "true"); 986 } 987 if (saveUri != null) { 988 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, saveUri); 989 } else { 990 newExtras.putBoolean("return-data", true); 991 } 992 993 Intent cropIntent = new Intent(); 994 cropIntent.setClass(Camera.this, CropImage.class); 995 cropIntent.setData(tempUri); 996 cropIntent.putExtras(newExtras); 997 998 startActivityForResult(cropIntent, CROP_MSG); 999 } 1000 } 1001 1002 private void doCancel() { 1003 setResult(RESULT_CANCELED, new Intent()); 1004 finish(); 1005 } 1006 1007 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1008 if (mPausing) { 1009 return; 1010 } 1011 switch (button.getId()) { 1012 case R.id.camera_button: 1013 if (mStoreImageThread == null) { 1014 doFocus(pressed); 1015 } else { 1016 Toast.makeText(Camera.this, 1017 getResources().getString(R.string.wait), 1018 Toast.LENGTH_SHORT); 1019 } 1020 break; 1021 } 1022 } 1023 1024 public void onShutterButtonClick(ShutterButton button) { 1025 if (mPausing) { 1026 return; 1027 } 1028 switch (button.getId()) { 1029 case R.id.camera_button: 1030 if (mIsImageCaptureIntent 1031 && mPostCaptureAlert.getVisibility() == View.VISIBLE) { 1032 // User was reviewing the capture image. Hide the action 1033 // items and start the preview now. 1034 hidePostCaptureAlert(); 1035 restartPreview(); 1036 } else if (mStoreImageThread == null) { 1037 // Take a picture. 1038 doSnap(); 1039 } else { 1040 Toast.makeText(Camera.this, 1041 getResources().getString(R.string.wait), 1042 Toast.LENGTH_SHORT); 1043 } 1044 break; 1045 } 1046 } 1047 1048 private void updateStorageHint() { 1049 updateStorageHint(MenuHelper.calculatePicturesRemaining()); 1050 } 1051 1052 private OnScreenHint mStorageHint; 1053 1054 private void updateStorageHint(int remaining) { 1055 String noStorageText = null; 1056 1057 if (remaining == MenuHelper.NO_STORAGE_ERROR) { 1058 String state = Environment.getExternalStorageState(); 1059 if (state == Environment.MEDIA_CHECKING) { 1060 noStorageText = getString(R.string.preparing_sd); 1061 } else { 1062 noStorageText = getString(R.string.no_storage); 1063 } 1064 } else if (remaining < 1) { 1065 noStorageText = getString(R.string.not_enough_space); 1066 } 1067 1068 if (noStorageText != null) { 1069 if (mStorageHint == null) { 1070 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1071 } else { 1072 mStorageHint.setText(noStorageText); 1073 } 1074 mStorageHint.show(); 1075 } else if (mStorageHint != null) { 1076 mStorageHint.cancel(); 1077 mStorageHint = null; 1078 } 1079 } 1080 1081 void installIntentFilter() { 1082 // install an intent filter to receive SD card related events. 1083 IntentFilter intentFilter = 1084 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1085 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1086 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED); 1087 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1088 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1089 intentFilter.addDataScheme("file"); 1090 registerReceiver(mReceiver, intentFilter); 1091 mDidRegister = true; 1092 } 1093 1094 void initializeFocusTone() { 1095 // Initialize focus tone generator. 1096 try { 1097 mFocusToneGenerator = new ToneGenerator( 1098 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1099 } catch (Throwable ex) { 1100 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1101 mFocusToneGenerator = null; 1102 } 1103 } 1104 1105 void readPreference() { 1106 mRecordLocation = mPreferences.getBoolean( 1107 "pref_camera_recordlocation_key", false); 1108 mFocusMode = mPreferences.getString( 1109 CameraSettings.KEY_FOCUS_MODE, 1110 getString(R.string.pref_camera_focusmode_default)); 1111 } 1112 1113 @Override 1114 public void onResume() { 1115 super.onResume(); 1116 1117 mPausing = false; 1118 mJpegPictureCallbackTime = 0; 1119 mImageCapture = new ImageCapture(); 1120 1121 if (mSurfaceHolder != null) { 1122 // If surface holder is created, start the preview now. Otherwise, 1123 // wait until surfaceChanged. 1124 mSurfaceView.setAspectRatio(VideoPreview.DONT_CARE); 1125 startPreview(); 1126 1127 // If first time initialization is not finished, put it in the 1128 // message queue. 1129 if (!mFirstTimeInitialized) { 1130 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1131 } else { 1132 initializeSecondTime(); 1133 } 1134 } 1135 1136 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 1137 } 1138 1139 private static ImageManager.DataLocation dataLocation() { 1140 return ImageManager.DataLocation.EXTERNAL; 1141 } 1142 1143 private void waitForStoreImageThread() { 1144 if (mStoreImageThread != null) { 1145 try { 1146 mStoreImageThread.join(); 1147 } catch (InterruptedException ex) { 1148 // Ignore this exception. 1149 Log.e(TAG, "", ex); 1150 } finally { 1151 mStoreImageThread = null; 1152 } 1153 } 1154 } 1155 1156 @Override 1157 protected void onPause() { 1158 mPausing = true; 1159 stopPreview(); 1160 // Close the camera now because other activities may need to use it. 1161 closeCamera(); 1162 1163 waitForStoreImageThread(); 1164 1165 if (mFirstTimeInitialized) { 1166 mOrientationListener.disable(); 1167 mGpsIndicator.setVisibility(View.INVISIBLE); 1168 if (!mIsImageCaptureIntent) { 1169 mThumbController.storeData( 1170 ImageManager.getLastImageThumbPath()); 1171 } 1172 hidePostCaptureAlert(); 1173 } 1174 1175 if (mDidRegister) { 1176 unregisterReceiver(mReceiver); 1177 mDidRegister = false; 1178 } 1179 stopReceivingLocationUpdates(); 1180 1181 if (mFocusToneGenerator != null) { 1182 mFocusToneGenerator.release(); 1183 mFocusToneGenerator = null; 1184 } 1185 1186 if (mStorageHint != null) { 1187 mStorageHint.cancel(); 1188 mStorageHint = null; 1189 } 1190 1191 // If we are in an image capture intent and has taken 1192 // a picture, we just clear it in onPause. 1193 mImageCapture.clearLastBitmap(); 1194 mImageCapture = null; 1195 1196 // This is necessary to make the ZoomButtonsController unregister 1197 // its configuration change receiver. 1198 if (mZoomButtons != null) { 1199 mZoomButtons.setVisible(false); 1200 } 1201 1202 // Remove the messages in the event queue. 1203 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 1204 mHandler.removeMessages(RESTART_PREVIEW); 1205 mHandler.removeMessages(FIRST_TIME_INIT); 1206 mHandler.removeMessages(STORE_IMAGE_DONE); 1207 1208 super.onPause(); 1209 } 1210 1211 @Override 1212 protected void onActivityResult( 1213 int requestCode, int resultCode, Intent data) { 1214 switch (requestCode) { 1215 case CROP_MSG: { 1216 Intent intent = new Intent(); 1217 if (data != null) { 1218 Bundle extras = data.getExtras(); 1219 if (extras != null) { 1220 intent.putExtras(extras); 1221 } 1222 } 1223 setResult(resultCode, intent); 1224 finish(); 1225 1226 File path = getFileStreamPath(sTempCropFilename); 1227 path.delete(); 1228 1229 break; 1230 } 1231 } 1232 } 1233 1234 private void autoFocus() { 1235 // Initiate autofocus only when preview is started and snapshot is not 1236 // in progress. 1237 if (isCameraIdle() && mPreviewing) { 1238 Log.v(TAG, "Start autofocus."); 1239 if (mZoomButtons != null) mZoomButtons.setVisible(false); 1240 mFocusStartTime = System.currentTimeMillis(); 1241 mFocusState = FOCUSING; 1242 updateFocusIndicator(); 1243 mCameraDevice.autoFocus(mAutoFocusCallback); 1244 } 1245 } 1246 1247 private void clearFocusState() { 1248 mFocusState = FOCUS_NOT_STARTED; 1249 updateFocusIndicator(); 1250 } 1251 1252 private void updateFocusIndicator() { 1253 if (mFocusRectangle == null) return; 1254 1255 if (mFocusState == FOCUSING || mFocusState == FOCUSING_SNAP_ON_FINISH) { 1256 mFocusRectangle.showStart(); 1257 } else if (mFocusState == FOCUS_SUCCESS) { 1258 mFocusRectangle.showSuccess(); 1259 } else if (mFocusState == FOCUS_FAIL) { 1260 mFocusRectangle.showFail(); 1261 } else { 1262 mFocusRectangle.clear(); 1263 } 1264 } 1265 1266 @Override 1267 public boolean onKeyDown(int keyCode, KeyEvent event) { 1268 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 1269 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1270 1271 switch (keyCode) { 1272 case KeyEvent.KEYCODE_BACK: 1273 if (!isCameraIdle()) { 1274 // ignore backs while we're taking a picture 1275 return true; 1276 } 1277 break; 1278 case KeyEvent.KEYCODE_FOCUS: 1279 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1280 doFocus(true); 1281 } 1282 return true; 1283 case KeyEvent.KEYCODE_CAMERA: 1284 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1285 doSnap(); 1286 } 1287 return true; 1288 case KeyEvent.KEYCODE_DPAD_CENTER: 1289 // If we get a dpad center event without any focused view, move 1290 // the focus to the shutter button and press it. 1291 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1292 // Start auto-focus immediately to reduce shutter lag. After 1293 // the shutter button gets the focus, doFocus() will be 1294 // called again but it is fine. 1295 doFocus(true); 1296 if (mShutterButton.isInTouchMode()) { 1297 mShutterButton.requestFocusFromTouch(); 1298 } else { 1299 mShutterButton.requestFocus(); 1300 } 1301 mShutterButton.setPressed(true); 1302 } 1303 return true; 1304 } 1305 1306 return super.onKeyDown(keyCode, event); 1307 } 1308 1309 @Override 1310 public boolean onKeyUp(int keyCode, KeyEvent event) { 1311 switch (keyCode) { 1312 case KeyEvent.KEYCODE_FOCUS: 1313 if (mFirstTimeInitialized) { 1314 doFocus(false); 1315 } 1316 return true; 1317 } 1318 return super.onKeyUp(keyCode, event); 1319 } 1320 1321 @Override 1322 public boolean onTouchEvent(MotionEvent event) { 1323 switch (event.getAction()) { 1324 case MotionEvent.ACTION_DOWN: 1325 // Show zoom buttons only when preview is started and snapshot 1326 // is not in progress. mZoomButtons may be null if it is not 1327 // initialized. 1328 if (!mPausing && isCameraIdle() && mPreviewing 1329 && mZoomButtons != null) { 1330 mZoomButtons.setVisible(true); 1331 } 1332 return true; 1333 } 1334 return super.onTouchEvent(event); 1335 } 1336 1337 private void doSnap() { 1338 // If the user has half-pressed the shutter and focus is completed, we 1339 // can take the photo right away. If the focus mode is infinity, we can 1340 // also take the photo. 1341 if (mFocusMode.equals(getString( 1342 R.string.pref_camera_focusmode_value_infinity)) 1343 || (mFocusState == FOCUS_SUCCESS || mFocusState == FOCUS_FAIL)) { 1344 if (mZoomButtons != null) mZoomButtons.setVisible(false); 1345 mImageCapture.onSnap(); 1346 } else if (mFocusState == FOCUSING) { 1347 // Half pressing the shutter (i.e. the focus button event) will 1348 // already have requested AF for us, so just request capture on 1349 // focus here. 1350 mFocusState = FOCUSING_SNAP_ON_FINISH; 1351 } else if (mFocusState == FOCUS_NOT_STARTED) { 1352 // Focus key down event is dropped for some reasons. Just ignore. 1353 } 1354 } 1355 1356 private void doFocus(boolean pressed) { 1357 // Do the focus if the mode is auto. No focus needed in infinity mode. 1358 if (mFocusMode.equals(getString( 1359 R.string.pref_camera_focusmode_value_auto))) { 1360 if (pressed) { // Focus key down. 1361 autoFocus(); 1362 } else { // Focus key up. 1363 if (mFocusState != FOCUSING_SNAP_ON_FINISH) { 1364 // User releases half-pressed focus key. 1365 clearFocusState(); 1366 } 1367 } 1368 } 1369 } 1370 1371 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1372 // Make sure we have a surface in the holder before proceeding. 1373 if (holder.getSurface() == null) { 1374 Log.d(TAG, "holder.getSurface() == null"); 1375 return; 1376 } 1377 1378 mSurfaceHolder = holder; 1379 mViewFinderWidth = w; 1380 mViewFinderHeight = h; 1381 1382 // Sometimes surfaceChanged is called after onPause. Ignore it. 1383 if (mPausing) return; 1384 1385 // Start the preview. 1386 startPreview(); 1387 1388 // If first time initialization is not finished, send a message to do 1389 // it later. We want to finish surfaceChanged as soon as possible to let 1390 // user see preview first. 1391 if (!mFirstTimeInitialized) { 1392 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1393 } else { 1394 initializeSecondTime(); 1395 } 1396 } 1397 1398 public void surfaceCreated(SurfaceHolder holder) { 1399 } 1400 1401 public void surfaceDestroyed(SurfaceHolder holder) { 1402 stopPreview(); 1403 mSurfaceHolder = null; 1404 } 1405 1406 private void closeCamera() { 1407 if (mCameraDevice != null) { 1408 CameraHolder.instance().release(); 1409 mCameraDevice = null; 1410 mPreviewing = false; 1411 } 1412 } 1413 1414 private boolean ensureCameraDevice() { 1415 if (mCameraDevice == null) { 1416 mCameraDevice = CameraHolder.instance().open(); 1417 } 1418 return mCameraDevice != null; 1419 } 1420 1421 private void updateLastImage() { 1422 IImageList list = ImageManager.allImages( 1423 mContentResolver, 1424 dataLocation(), 1425 ImageManager.INCLUDE_IMAGES, 1426 ImageManager.SORT_ASCENDING, 1427 ImageManager.CAMERA_IMAGE_BUCKET_ID); 1428 int count = list.getCount(); 1429 if (count > 0) { 1430 IImage image = list.getImageAt(count - 1); 1431 Uri uri = image.fullSizeImageUri(); 1432 mThumbController.setData(uri, image.miniThumbBitmap()); 1433 } else { 1434 mThumbController.setData(null, null); 1435 } 1436 list.deactivate(); 1437 } 1438 1439 private void restartPreview() { 1440 // make sure the surfaceview fills the whole screen when previewing 1441 mSurfaceView.setAspectRatio(VideoPreview.DONT_CARE); 1442 startPreview(); 1443 1444 // Calculate this in advance of each shot so we don't add to shutter 1445 // latency. It's true that someone else could write to the SD card in 1446 // the mean time and fill it, but that could have happened between the 1447 // shutter press and saving the JPEG too. 1448 calculatePicturesRemaining(); 1449 } 1450 1451 private void startPreview() { 1452 if (mPausing) return; 1453 1454 if (!ensureCameraDevice()) return; 1455 1456 if (mSurfaceHolder == null) return; 1457 1458 if (isFinishing()) return; 1459 1460 // If we're previewing already, stop the preview first (this will blank 1461 // the screen). 1462 if (mPreviewing) stopPreview(); 1463 1464 // this blanks the screen if the surface changed, no-op otherwise 1465 try { 1466 mCameraDevice.setPreviewDisplay(mSurfaceHolder); 1467 } catch (Throwable ex) { 1468 closeCamera(); 1469 throw new RuntimeException("setPreviewDisplay failed", ex); 1470 } 1471 1472 setCameraParameter(); 1473 1474 final long wallTimeStart = SystemClock.elapsedRealtime(); 1475 final long threadTimeStart = Debug.threadCpuTimeNanos(); 1476 1477 // Set one shot preview callback for latency measurement. 1478 mCameraDevice.setOneShotPreviewCallback(mOneShotPreviewCallback); 1479 1480 try { 1481 Log.v(TAG, "startPreview"); 1482 mCameraDevice.startPreview(); 1483 } catch (Throwable ex) { 1484 closeCamera(); 1485 throw new RuntimeException("startPreview failed", ex); 1486 } 1487 mPreviewing = true; 1488 mStatus = IDLE; 1489 1490 long threadTimeEnd = Debug.threadCpuTimeNanos(); 1491 long wallTimeEnd = SystemClock.elapsedRealtime(); 1492 if ((wallTimeEnd - wallTimeStart) > 3000) { 1493 Log.w(TAG, "startPreview() to " + (wallTimeEnd - wallTimeStart) 1494 + " ms. Thread time was" 1495 + (threadTimeEnd - threadTimeStart) / 1000000 + " ms."); 1496 } 1497 } 1498 1499 private void stopPreview() { 1500 if (mCameraDevice != null && mPreviewing) { 1501 Log.v(TAG, "stopPreview"); 1502 mCameraDevice.stopPreview(); 1503 } 1504 mPreviewing = false; 1505 // If auto focus was in progress, it would have been canceled. 1506 clearFocusState(); 1507 } 1508 1509 private void setCameraParameter() { 1510 // request the preview size, the hardware may not honor it, 1511 // if we depended on it we would have to query the size again 1512 mParameters = mCameraDevice.getParameters(); 1513 mParameters.setPreviewSize(mViewFinderWidth, mViewFinderHeight); 1514 1515 // Set white balance parameter. 1516 String whiteBalance = mPreferences.getString( 1517 CameraSettings.KEY_WHITE_BALANCE, 1518 getString(R.string.pref_camera_whitebalance_default)); 1519 mParameters.set(PARM_WHITE_BALANCE, whiteBalance); 1520 1521 // Set effect parameter. 1522 String effect = mPreferences.getString( 1523 CameraSettings.KEY_EFFECT, 1524 getString(R.string.pref_camera_effect_default)); 1525 mParameters.set(PARM_EFFECT, effect); 1526 1527 // Set picture size parameter. 1528 String pictureSize = mPreferences.getString( 1529 CameraSettings.KEY_PICTURE_SIZE, 1530 getString(R.string.pref_camera_picturesize_default)); 1531 mParameters.set(PARM_PICTURE_SIZE, pictureSize); 1532 1533 // Set JPEG quality parameter. 1534 String jpegQuality = mPreferences.getString( 1535 CameraSettings.KEY_JPEG_QUALITY, 1536 getString(R.string.pref_camera_jpegquality_default)); 1537 mParameters.set(PARM_JPEG_QUALITY, jpegQuality); 1538 1539 // Set ISO parameter. 1540 String iso = mPreferences.getString( 1541 CameraSettings.KEY_ISO, 1542 getString(R.string.pref_camera_iso_default)); 1543 mParameters.set(PARM_ISO, iso); 1544 1545 // Set zoom. 1546 if (mZoomValues != null) { 1547 mParameters.set(PARM_ZOOM, mZoomValues[mZoomIndex]); 1548 } 1549 1550 mCameraDevice.setParameters(mParameters); 1551 } 1552 1553 void gotoGallery() { 1554 MenuHelper.gotoCameraImageGallery(this); 1555 } 1556 1557 private void viewLastImage() { 1558 if (mThumbController.isUriValid()) { 1559 Uri targetUri = mThumbController.getUri(); 1560 targetUri = targetUri.buildUpon().appendQueryParameter( 1561 "bucketId", ImageManager.CAMERA_IMAGE_BUCKET_ID).build(); 1562 Intent intent = new Intent(Intent.ACTION_VIEW, targetUri); 1563 intent.putExtra(MediaStore.EXTRA_FULL_SCREEN, true); 1564 intent.putExtra(MediaStore.EXTRA_SHOW_ACTION_ICONS, true); 1565 intent.putExtra("com.android.camera.ReviewMode", true); 1566 try { 1567 startActivity(intent); 1568 } catch (ActivityNotFoundException ex) { 1569 Log.e(TAG, "review image fail", ex); 1570 } 1571 } else { 1572 Log.e(TAG, "Can't view last image."); 1573 } 1574 } 1575 1576 private void startReceivingLocationUpdates() { 1577 if (mLocationManager != null) { 1578 try { 1579 mLocationManager.requestLocationUpdates( 1580 LocationManager.NETWORK_PROVIDER, 1581 1000, 1582 0F, 1583 mLocationListeners[1]); 1584 } catch (java.lang.SecurityException ex) { 1585 Log.i(TAG, "fail to request location update, ignore", ex); 1586 } catch (IllegalArgumentException ex) { 1587 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1588 } 1589 try { 1590 mLocationManager.requestLocationUpdates( 1591 LocationManager.GPS_PROVIDER, 1592 1000, 1593 0F, 1594 mLocationListeners[0]); 1595 } catch (java.lang.SecurityException ex) { 1596 Log.i(TAG, "fail to request location update, ignore", ex); 1597 } catch (IllegalArgumentException ex) { 1598 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1599 } 1600 } 1601 } 1602 1603 private void stopReceivingLocationUpdates() { 1604 if (mLocationManager != null) { 1605 for (int i = 0; i < mLocationListeners.length; i++) { 1606 try { 1607 mLocationManager.removeUpdates(mLocationListeners[i]); 1608 } catch (Exception ex) { 1609 Log.i(TAG, "fail to remove location listners, ignore", ex); 1610 } 1611 } 1612 } 1613 } 1614 1615 private Location getCurrentLocation() { 1616 // go in best to worst order 1617 for (int i = 0; i < mLocationListeners.length; i++) { 1618 Location l = mLocationListeners[i].current(); 1619 if (l != null) return l; 1620 } 1621 return null; 1622 } 1623 1624 private boolean isCameraIdle() { 1625 return mStatus == IDLE && mFocusState == FOCUS_NOT_STARTED; 1626 } 1627 1628 private boolean isImageCaptureIntent() { 1629 String action = getIntent().getAction(); 1630 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 1631 } 1632 1633 private void showPostCaptureAlert() { 1634 if (mIsImageCaptureIntent) { 1635 mPostCaptureAlert.setVisibility(View.VISIBLE); 1636 int[] pickIds = {R.id.attach, R.id.cancel}; 1637 for (int id : pickIds) { 1638 View view = mPostCaptureAlert.findViewById(id); 1639 view.setOnClickListener(this); 1640 Animation animation = new AlphaAnimation(0F, 1F); 1641 animation.setDuration(500); 1642 view.setAnimation(animation); 1643 } 1644 } 1645 } 1646 1647 private void hidePostCaptureAlert() { 1648 if (mIsImageCaptureIntent) { 1649 mPostCaptureAlert.setVisibility(View.INVISIBLE); 1650 } 1651 } 1652 1653 private int calculatePicturesRemaining() { 1654 mPicturesRemaining = MenuHelper.calculatePicturesRemaining(); 1655 return mPicturesRemaining; 1656 } 1657 1658 @Override 1659 public boolean onPrepareOptionsMenu(Menu menu) { 1660 super.onPrepareOptionsMenu(menu); 1661 1662 for (int i = 1; i <= MenuHelper.MENU_ITEM_MAX; i++) { 1663 menu.setGroupVisible(i, false); 1664 } 1665 1666 // Only show the menu when camera is idle. 1667 if (isCameraIdle()) { 1668 menu.setGroupVisible(MenuHelper.GENERIC_ITEM, true); 1669 menu.setGroupVisible(MenuHelper.IMAGE_MODE_ITEM, true); 1670 } 1671 1672 return true; 1673 } 1674 1675 @Override 1676 public boolean onCreateOptionsMenu(Menu menu) { 1677 super.onCreateOptionsMenu(menu); 1678 1679 if (mIsImageCaptureIntent) { 1680 // No options menu for attach mode. 1681 return false; 1682 } else { 1683 addBaseMenuItems(menu); 1684 } 1685 return true; 1686 } 1687 1688 private void addBaseMenuItems(Menu menu) { 1689 MenuHelper.addSwitchModeMenuItem(menu, this, true); 1690 { 1691 MenuItem gallery = menu.add( 1692 MenuHelper.IMAGE_MODE_ITEM, MENU_GALLERY_PHOTOS, 0, 1693 R.string.camera_gallery_photos_text) 1694 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1695 public boolean onMenuItemClick(MenuItem item) { 1696 gotoGallery(); 1697 return true; 1698 } 1699 }); 1700 gallery.setIcon(android.R.drawable.ic_menu_gallery); 1701 mGalleryItems.add(gallery); 1702 } 1703 { 1704 MenuItem gallery = menu.add( 1705 MenuHelper.VIDEO_MODE_ITEM, MENU_GALLERY_VIDEOS, 0, 1706 R.string.camera_gallery_photos_text) 1707 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1708 public boolean onMenuItemClick(MenuItem item) { 1709 gotoGallery(); 1710 return true; 1711 } 1712 }); 1713 gallery.setIcon(android.R.drawable.ic_menu_gallery); 1714 mGalleryItems.add(gallery); 1715 } 1716 1717 MenuItem item = menu.add(MenuHelper.GENERIC_ITEM, MENU_SETTINGS, 1718 0, R.string.settings) 1719 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1720 public boolean onMenuItemClick(MenuItem item) { 1721 Intent intent = new Intent(); 1722 intent.setClass(Camera.this, CameraSettings.class); 1723 startActivity(intent); 1724 return true; 1725 } 1726 }); 1727 item.setIcon(android.R.drawable.ic_menu_preferences); 1728 } 1729} 1730 1731class FocusRectangle extends View { 1732 1733 @SuppressWarnings("unused") 1734 private static final String TAG = "FocusRectangle"; 1735 1736 public FocusRectangle(Context context, AttributeSet attrs) { 1737 super(context, attrs); 1738 } 1739 1740 private void setDrawable(int resid) { 1741 BitmapDrawable d = (BitmapDrawable) getResources().getDrawable(resid); 1742 // We do this because we don't want the bitmap to be scaled. 1743 d.setGravity(Gravity.CENTER); 1744 setBackgroundDrawable(d); 1745 } 1746 1747 public void showStart() { 1748 setDrawable(R.drawable.frame_autofocus_rectangle); 1749 } 1750 1751 public void showSuccess() { 1752 setDrawable(R.drawable.frame_focused_rectangle); 1753 } 1754 1755 public void showFail() { 1756 setDrawable(R.drawable.frame_nofocus_rectangle); 1757 } 1758 1759 public void clear() { 1760 setBackgroundDrawable(null); 1761 } 1762} 1763