Camera.java revision fcb65124480c7a07d8cb1b28eff3c6acd6107531
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.graphics.Bitmap; 28import android.graphics.BitmapFactory; 29import android.graphics.Matrix; 30import android.hardware.Camera.PictureCallback; 31import android.location.Location; 32import android.location.LocationManager; 33import android.location.LocationProvider; 34import android.media.AudioManager; 35import android.media.ToneGenerator; 36import android.net.Uri; 37import android.os.Bundle; 38import android.os.Debug; 39import android.os.Environment; 40import android.os.Handler; 41import android.os.Message; 42import android.os.SystemClock; 43import android.preference.PreferenceManager; 44import android.provider.MediaStore; 45import android.text.format.DateFormat; 46import android.util.AttributeSet; 47import android.util.Log; 48import android.view.KeyEvent; 49import android.view.LayoutInflater; 50import android.view.Menu; 51import android.view.MenuItem; 52import android.view.MotionEvent; 53import android.view.OrientationEventListener; 54import android.view.SurfaceHolder; 55import android.view.View; 56import android.view.ViewGroup; 57import android.view.Window; 58import android.view.WindowManager; 59import android.view.MenuItem.OnMenuItemClickListener; 60import android.widget.ImageView; 61import android.widget.Toast; 62import android.widget.ZoomButtonsController; 63 64import com.android.camera.gallery.Cancelable; 65import com.android.camera.gallery.IImage; 66import com.android.camera.gallery.IImageList; 67 68import java.io.File; 69import java.io.FileNotFoundException; 70import java.io.FileOutputStream; 71import java.io.IOException; 72import java.io.OutputStream; 73import java.util.ArrayList; 74 75/** 76 * Activity of the Camera which used to see preview and take pictures. 77 */ 78public class Camera extends Activity implements View.OnClickListener, 79 ShutterButton.OnShutterButtonListener, SurfaceHolder.Callback, 80 Switcher.OnSwitchListener { 81 82 private static final String TAG = "camera"; 83 84 private static final int CROP_MSG = 1; 85 private static final int FIRST_TIME_INIT = 2; 86 private static final int RESTART_PREVIEW = 3; 87 private static final int CLEAR_SCREEN_DELAY = 4; 88 89 private static final int SCREEN_DELAY = 2 * 60 * 1000; 90 private static final int FOCUS_BEEP_VOLUME = 100; 91 92 public static final int MENU_SWITCH_TO_VIDEO = 0; 93 public static final int MENU_SWITCH_TO_CAMERA = 1; 94 public static final int MENU_FLASH_SETTING = 2; 95 public static final int MENU_FLASH_AUTO = 3; 96 public static final int MENU_FLASH_ON = 4; 97 public static final int MENU_FLASH_OFF = 5; 98 public static final int MENU_SETTINGS = 6; 99 public static final int MENU_GALLERY_PHOTOS = 7; 100 public static final int MENU_GALLERY_VIDEOS = 8; 101 public static final int MENU_SAVE_SELECT_PHOTOS = 30; 102 public static final int MENU_SAVE_NEW_PHOTO = 31; 103 public static final int MENU_SAVE_GALLERY_PHOTO = 34; 104 public static final int MENU_SAVE_GALLERY_VIDEO_PHOTO = 35; 105 public static final int MENU_SAVE_CAMERA_DONE = 36; 106 public static final int MENU_SAVE_CAMERA_VIDEO_DONE = 37; 107 108 private android.hardware.Camera.Parameters mParameters; 109 110 // The parameter strings to communicate with camera driver. 111 public static final String PARM_PICTURE_SIZE = "picture-size"; 112 public static final String PARM_JPEG_QUALITY = "jpeg-quality"; 113 public static final String PARM_ROTATION = "rotation"; 114 public static final String PARM_GPS_LATITUDE = "gps-latitude"; 115 public static final String PARM_GPS_LONGITUDE = "gps-longitude"; 116 public static final String PARM_GPS_ALTITUDE = "gps-altitude"; 117 public static final String PARM_GPS_TIMESTAMP = "gps-timestamp"; 118 public static final String SUPPORTED_ZOOM = "zoom-values"; 119 public static final String SUPPORTED_PICTURE_SIZE = "picture-size-values"; 120 121 private OrientationEventListener mOrientationListener; 122 private int mLastOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 123 private SharedPreferences mPreferences; 124 125 private static final int IDLE = 1; 126 private static final int SNAPSHOT_IN_PROGRESS = 2; 127 128 private static final boolean SWITCH_CAMERA = true; 129 private static final boolean SWITCH_VIDEO = false; 130 131 private int mStatus = IDLE; 132 private static final String sTempCropFilename = "crop-temp"; 133 134 private android.hardware.Camera mCameraDevice; 135 private VideoPreview mSurfaceView; 136 private SurfaceHolder mSurfaceHolder = null; 137 private ShutterButton mShutterButton; 138 private FocusRectangle mFocusRectangle; 139 private ImageView mGpsIndicator; 140 private ToneGenerator mFocusToneGenerator; 141 private ZoomButtonsController mZoomButtons; 142 private Switcher mSwitcher; 143 144 // mPostCaptureAlert, mLastPictureButton, mThumbController 145 // are non-null only if isImageCaptureIntent() is true. 146 private ImageView mLastPictureButton; 147 private ThumbnailController mThumbController; 148 149 private int mViewFinderWidth, mViewFinderHeight; 150 151 private ImageCapture mImageCapture = null; 152 153 private boolean mPreviewing; 154 private boolean mPausing; 155 private boolean mFirstTimeInitialized; 156 private boolean mIsImageCaptureIntent; 157 private boolean mRecordLocation; 158 159 private static final int FOCUS_NOT_STARTED = 0; 160 private static final int FOCUSING = 1; 161 private static final int FOCUSING_SNAP_ON_FINISH = 2; 162 private static final int FOCUS_SUCCESS = 3; 163 private static final int FOCUS_FAIL = 4; 164 private int mFocusState = FOCUS_NOT_STARTED; 165 166 private ContentResolver mContentResolver; 167 private boolean mDidRegister = false; 168 169 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 170 171 private LocationManager mLocationManager = null; 172 173 // Use OneShotPreviewCallback to measure the time between 174 // JpegPictureCallback and preview. 175 private final OneShotPreviewCallback mOneShotPreviewCallback = 176 new OneShotPreviewCallback(); 177 private final ShutterCallback mShutterCallback = new ShutterCallback(); 178 private final RawPictureCallback mRawPictureCallback = 179 new RawPictureCallback(); 180 private final AutoFocusCallback mAutoFocusCallback = 181 new AutoFocusCallback(); 182 // Use the ErrorCallback to capture the crash count 183 // on the mediaserver 184 private final ErrorCallback mErrorCallback = new ErrorCallback(); 185 186 private long mFocusStartTime; 187 private long mFocusCallbackTime; 188 private long mCaptureStartTime; 189 private long mShutterCallbackTime; 190 private long mRawPictureCallbackTime; 191 private long mJpegPictureCallbackTime; 192 private int mPicturesRemaining; 193 194 // These latency time are for the CameraLatency test. 195 public long mAutoFocusTime; 196 public long mShutterLag; 197 public long mShutterAndRawPictureCallbackTime; 198 public long mJpegPictureCallbackTimeLag; 199 public long mRawPictureAndJpegPictureCallbackTime; 200 201 //Add the media server tag 202 public static boolean mMediaServerDied = false; 203 // Focus mode. Options are pref_camera_focusmode_entryvalues. 204 private String mFocusMode; 205 206 private final Handler mHandler = new MainHandler(); 207 208 private interface Capturer { 209 Uri getLastCaptureUri(); 210 void onSnap(); 211 } 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 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 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 = (ImageView) findViewById(R.id.gps_indicator); 294 mGpsIndicator.setImageResource(R.drawable.ic_camera_sym_gps); 295 296 ImageManager.ensureOSXCompatibleFolder(); 297 298 installIntentFilter(); 299 300 initializeFocusTone(); 301 302 // Disable zoom until driver is ready. 303 // TODO: enable this. 304 //initializeZoom(); 305 306 mFirstTimeInitialized = true; 307 } 308 309 private void updateThumbnailButton() { 310 // Update last image if URI is invalid and the storage is ready. 311 if (!mThumbController.isUriValid() && mPicturesRemaining >= 0) { 312 updateLastImage(); 313 } 314 mThumbController.updateDisplayIfNeeded(); 315 } 316 317 // If the activity is paused and resumed, this method will be called in 318 // onResume. 319 void initializeSecondTime() { 320 // Start orientation listener as soon as possible because it takes 321 // some time to get first orientation. 322 mOrientationListener.enable(); 323 324 // Start location update if needed. 325 readPreference(); 326 if (mRecordLocation) startReceivingLocationUpdates(); 327 328 installIntentFilter(); 329 330 initializeFocusTone(); 331 332 checkStorage(); 333 334 if (!mIsImageCaptureIntent) { 335 updateThumbnailButton(); 336 } 337 } 338 339 LocationListener [] mLocationListeners = new LocationListener[] { 340 new LocationListener(LocationManager.GPS_PROVIDER), 341 new LocationListener(LocationManager.NETWORK_PROVIDER) 342 }; 343 344 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 345 @Override 346 public void onReceive(Context context, Intent intent) { 347 String action = intent.getAction(); 348 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 349 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 350 || action.equals(Intent.ACTION_MEDIA_CHECKING) 351 || action.equals(Intent.ACTION_MEDIA_SCANNER_STARTED)) { 352 checkStorage(); 353 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 354 checkStorage(); 355 if (!mIsImageCaptureIntent) { 356 updateThumbnailButton(); 357 } 358 } 359 } 360 }; 361 362 private class LocationListener 363 implements android.location.LocationListener { 364 Location mLastLocation; 365 boolean mValid = false; 366 String mProvider; 367 368 public LocationListener(String provider) { 369 mProvider = provider; 370 mLastLocation = new Location(mProvider); 371 } 372 373 public void onLocationChanged(Location newLocation) { 374 if (newLocation.getLatitude() == 0.0 375 && newLocation.getLongitude() == 0.0) { 376 // Hack to filter out 0.0,0.0 locations 377 return; 378 } 379 // If GPS is available before start camera, we won't get status 380 // update so update GPS indicator when we receive data. 381 if (mRecordLocation 382 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 383 mGpsIndicator.setVisibility(View.VISIBLE); 384 } 385 mLastLocation.set(newLocation); 386 mValid = true; 387 } 388 389 public void onProviderEnabled(String provider) { 390 } 391 392 public void onProviderDisabled(String provider) { 393 mValid = false; 394 } 395 396 public void onStatusChanged( 397 String provider, int status, Bundle extras) { 398 switch(status) { 399 case LocationProvider.OUT_OF_SERVICE: 400 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 401 mValid = false; 402 if (mRecordLocation && 403 LocationManager.GPS_PROVIDER.equals(provider)) { 404 mGpsIndicator.setVisibility(View.INVISIBLE); 405 } 406 break; 407 } 408 } 409 } 410 411 public Location current() { 412 return mValid ? mLastLocation : null; 413 } 414 } 415 416 private final class OneShotPreviewCallback 417 implements android.hardware.Camera.PreviewCallback { 418 public void onPreviewFrame(byte[] data, 419 android.hardware.Camera camera) { 420 long now = System.currentTimeMillis(); 421 if (mJpegPictureCallbackTime != 0) { 422 mJpegPictureCallbackTimeLag = now - mJpegPictureCallbackTime; 423 Log.v(TAG, "mJpegPictureCallbackTimeLag = " 424 + mJpegPictureCallbackTimeLag + "ms"); 425 mJpegPictureCallbackTime = 0; 426 } else { 427 Log.v(TAG, "Got first frame"); 428 } 429 } 430 } 431 432 private final class ShutterCallback 433 implements android.hardware.Camera.ShutterCallback { 434 public void onShutter() { 435 mShutterCallbackTime = System.currentTimeMillis(); 436 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 437 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 438 clearFocusState(); 439 } 440 } 441 442 private final class RawPictureCallback implements PictureCallback { 443 public void onPictureTaken( 444 byte [] rawData, android.hardware.Camera camera) { 445 mRawPictureCallbackTime = System.currentTimeMillis(); 446 mShutterAndRawPictureCallbackTime = 447 mRawPictureCallbackTime - mShutterCallbackTime; 448 Log.v(TAG, "mShutterAndRawPictureCallbackTime = " 449 + mShutterAndRawPictureCallbackTime + "ms"); 450 } 451 } 452 453 private final class JpegPictureCallback implements PictureCallback { 454 Location mLocation; 455 456 public JpegPictureCallback(Location loc) { 457 mLocation = loc; 458 } 459 460 public void onPictureTaken( 461 final byte [] jpegData, final android.hardware.Camera camera) { 462 if (mPausing) { 463 return; 464 } 465 466 mJpegPictureCallbackTime = System.currentTimeMillis(); 467 mRawPictureAndJpegPictureCallbackTime = 468 mJpegPictureCallbackTime - mRawPictureCallbackTime; 469 Log.v(TAG, "mRawPictureAndJpegPictureCallbackTime = " 470 + mRawPictureAndJpegPictureCallbackTime + "ms"); 471 mImageCapture.storeImage(jpegData, camera, mLocation); 472 473 if (!mIsImageCaptureIntent) { 474 long delay = 1200 - ( 475 System.currentTimeMillis() - mRawPictureCallbackTime); 476 mHandler.sendEmptyMessageDelayed( 477 RESTART_PREVIEW, Math.max(delay, 0)); 478 } 479 } 480 } 481 482 private final class AutoFocusCallback 483 implements android.hardware.Camera.AutoFocusCallback { 484 public void onAutoFocus( 485 boolean focused, android.hardware.Camera camera) { 486 mFocusCallbackTime = System.currentTimeMillis(); 487 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 488 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 489 if (mFocusState == FOCUSING_SNAP_ON_FINISH) { 490 // Take the picture no matter focus succeeds or fails. No need 491 // to play the AF sound if we're about to play the shutter 492 // sound. 493 if (focused) { 494 mFocusState = FOCUS_SUCCESS; 495 } else { 496 mFocusState = FOCUS_FAIL; 497 } 498 mImageCapture.onSnap(); 499 } else if (mFocusState == FOCUSING) { 500 // User is half-pressing the focus key. Play the focus tone. 501 // Do not take the picture now. 502 ToneGenerator tg = mFocusToneGenerator; 503 if (tg != null) { 504 tg.startTone(ToneGenerator.TONE_PROP_BEEP2); 505 } 506 if (focused) { 507 mFocusState = FOCUS_SUCCESS; 508 } else { 509 mFocusState = FOCUS_FAIL; 510 } 511 } else if (mFocusState == FOCUS_NOT_STARTED) { 512 // User has released the focus key before focus completes. 513 // Do nothing. 514 } 515 updateFocusIndicator(); 516 } 517 } 518 519 private final class ErrorCallback 520 implements android.hardware.Camera.ErrorCallback { 521 public void onError(int error, android.hardware.Camera camera) { 522 if (error == android.hardware.Camera.CAMERA_ERROR_SERVER_DIED) { 523 mMediaServerDied = true; 524 Log.v(TAG, "media server died"); 525 } 526 } 527 } 528 529 private class ImageCapture implements Capturer { 530 531 private boolean mCancel = false; 532 533 private Uri mLastContentUri; 534 private Cancelable<Void> mAddImageCancelable; 535 536 Bitmap mCaptureOnlyBitmap; 537 538 private void storeImage(byte[] data, Location loc) { 539 try { 540 long dateTaken = System.currentTimeMillis(); 541 String name = createName(dateTaken) + ".jpg"; 542 mLastContentUri = ImageManager.addImage( 543 mContentResolver, 544 name, 545 dateTaken, 546 loc, // location for the database goes here 547 0, // the dsp will use the right orientation so 548 // don't "double set it" 549 ImageManager.CAMERA_IMAGE_BUCKET_NAME, 550 name); 551 if (mLastContentUri == null) { 552 // this means we got an error 553 mCancel = true; 554 } 555 if (!mCancel) { 556 mAddImageCancelable = ImageManager.storeImage( 557 mLastContentUri, mContentResolver, 558 0, null, data); 559 mAddImageCancelable.get(); 560 mAddImageCancelable = null; 561 ImageManager.setImageSize(mContentResolver, mLastContentUri, 562 new File(ImageManager.CAMERA_IMAGE_BUCKET_NAME, 563 name).length()); 564 } 565 } catch (Exception ex) { 566 Log.e(TAG, "Exception while compressing image.", ex); 567 } 568 } 569 570 public void storeImage(final byte[] data, 571 android.hardware.Camera camera, Location loc) { 572 if (!mIsImageCaptureIntent) { 573 storeImage(data, loc); 574 sendBroadcast(new Intent( 575 "com.android.camera.NEW_PICTURE", mLastContentUri)); 576 setLastPictureThumb(data, mImageCapture.getLastCaptureUri()); 577 mThumbController.updateDisplayIfNeeded(); 578 } else { 579 BitmapFactory.Options options = new BitmapFactory.Options(); 580 options.inSampleSize = 4; 581 mCaptureOnlyBitmap = BitmapFactory.decodeByteArray( 582 data, 0, data.length, options); 583 showPostCaptureAlert(); 584 } 585 } 586 587 /** 588 * Initiate the capture of an image. 589 */ 590 public void initiate() { 591 if (mCameraDevice == null) { 592 return; 593 } 594 595 mCancel = false; 596 597 capture(); 598 } 599 600 public Uri getLastCaptureUri() { 601 return mLastContentUri; 602 } 603 604 public Bitmap getLastBitmap() { 605 return mCaptureOnlyBitmap; 606 } 607 608 private void capture() { 609 mCaptureOnlyBitmap = null; 610 611 int orientation = mLastOrientation; 612 if (orientation != OrientationEventListener.ORIENTATION_UNKNOWN) { 613 orientation += 90; 614 } 615 orientation = ImageManager.roundOrientation(orientation); 616 Log.v(TAG, "mLastOrientation = " + mLastOrientation 617 + ", orientation = " + orientation); 618 619 mParameters.set(PARM_ROTATION, orientation); 620 621 Location loc = mRecordLocation ? getCurrentLocation() : null; 622 623 mParameters.remove(PARM_GPS_LATITUDE); 624 mParameters.remove(PARM_GPS_LONGITUDE); 625 mParameters.remove(PARM_GPS_ALTITUDE); 626 mParameters.remove(PARM_GPS_TIMESTAMP); 627 628 if (loc != null) { 629 double lat = loc.getLatitude(); 630 double lon = loc.getLongitude(); 631 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 632 633 if (hasLatLon) { 634 String latString = String.valueOf(lat); 635 String lonString = String.valueOf(lon); 636 mParameters.set(PARM_GPS_LATITUDE, latString); 637 mParameters.set(PARM_GPS_LONGITUDE, lonString); 638 if (loc.hasAltitude()) { 639 mParameters.set(PARM_GPS_ALTITUDE, 640 String.valueOf(loc.getAltitude())); 641 } else { 642 // for NETWORK_PROVIDER location provider, we may have 643 // no altitude information, but the driver needs it, so 644 // we fake one. 645 mParameters.set(PARM_GPS_ALTITUDE, "0"); 646 } 647 if (loc.getTime() != 0) { 648 // Location.getTime() is UTC in milliseconds. 649 // gps-timestamp is UTC in seconds. 650 long utcTimeSeconds = loc.getTime() / 1000; 651 mParameters.set(PARM_GPS_TIMESTAMP, 652 String.valueOf(utcTimeSeconds)); 653 } 654 } else { 655 loc = null; 656 } 657 } 658 659 mCameraDevice.setParameters(mParameters); 660 661 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 662 new JpegPictureCallback(loc)); 663 mPreviewing = false; 664 } 665 666 public void onSnap() { 667 // If we are already in the middle of taking a snapshot then ignore. 668 if (mPausing || mStatus == SNAPSHOT_IN_PROGRESS) { 669 return; 670 } 671 mCaptureStartTime = System.currentTimeMillis(); 672 673 // Don't check the filesystem here, we can't afford the latency. 674 // Instead, check the cached value which was calculated when the 675 // preview was restarted. 676 if (mPicturesRemaining < 1) { 677 updateStorageHint(mPicturesRemaining); 678 return; 679 } 680 681 mStatus = SNAPSHOT_IN_PROGRESS; 682 683 mImageCapture.initiate(); 684 } 685 686 private void clearLastBitmap() { 687 if (mCaptureOnlyBitmap != null) { 688 mCaptureOnlyBitmap.recycle(); 689 mCaptureOnlyBitmap = null; 690 } 691 } 692 } 693 694 private void setLastPictureThumb(byte[] data, Uri uri) { 695 BitmapFactory.Options options = new BitmapFactory.Options(); 696 options.inSampleSize = 16; 697 Bitmap lastPictureThumb = 698 BitmapFactory.decodeByteArray(data, 0, data.length, options); 699 mThumbController.setData(uri, lastPictureThumb); 700 } 701 702 private static String createName(long dateTaken) { 703 return DateFormat.format("yyyy-MM-dd kk.mm.ss", dateTaken).toString(); 704 } 705 706 public static Matrix getDisplayMatrix(Bitmap b, ImageView v) { 707 Matrix m = new Matrix(); 708 float bw = b.getWidth(); 709 float bh = b.getHeight(); 710 float vw = v.getWidth(); 711 float vh = v.getHeight(); 712 float scale, x, y; 713 if (bw * vh > vw * bh) { 714 scale = vh / bh; 715 x = (vw - scale * bw) * 0.5F; 716 y = 0; 717 } else { 718 scale = vw / bw; 719 x = 0; 720 y = (vh - scale * bh) * 0.5F; 721 } 722 m.setScale(scale, scale, 0.5F, 0.5F); 723 m.postTranslate(x, y); 724 return m; 725 } 726 727 @Override 728 public void onCreate(Bundle icicle) { 729 super.onCreate(icicle); 730 731 Window win = getWindow(); 732 win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 733 setContentView(R.layout.camera); 734 mSurfaceView = (VideoPreview) findViewById(R.id.camera_preview); 735 mViewFinderWidth = mSurfaceView.getLayoutParams().width; 736 mViewFinderHeight = mSurfaceView.getLayoutParams().height; 737 mPreferences = PreferenceManager.getDefaultSharedPreferences(this); 738 739 /* 740 * To reduce startup time, we start the preview in another thread. 741 * We make sure the preview is started at the end of onCreate. 742 */ 743 Thread startPreviewThread = new Thread(new Runnable() { 744 public void run() { 745 startPreview(); 746 } 747 }); 748 startPreviewThread.start(); 749 750 // don't set mSurfaceHolder here. We have it set ONLY within 751 // surfaceChanged / surfaceDestroyed, other parts of the code 752 // assume that when it is set, the surface is also set. 753 SurfaceHolder holder = mSurfaceView.getHolder(); 754 holder.addCallback(this); 755 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 756 757 mIsImageCaptureIntent = isImageCaptureIntent(); 758 LayoutInflater inflater = getLayoutInflater(); 759 760 ViewGroup rootView = (ViewGroup) findViewById(R.id.camera); 761 if (mIsImageCaptureIntent) { 762 View controlBar = inflater.inflate( 763 R.layout.attach_camera_control, rootView); 764 controlBar.findViewById(R.id.btn_cancel).setOnClickListener(this); 765 controlBar.findViewById(R.id.btn_retake).setOnClickListener(this); 766 controlBar.findViewById(R.id.btn_done).setOnClickListener(this); 767 } else { 768 inflater.inflate(R.layout.camera_control, rootView); 769 mSwitcher = ((Switcher) findViewById(R.id.camera_switch)); 770 mSwitcher.setOnSwitchListener(this); 771 } 772 773 // Make sure preview is started. 774 try { 775 startPreviewThread.join(); 776 } catch (InterruptedException ex) { 777 // ignore 778 } 779 } 780 781 @Override 782 public void onStart() { 783 super.onStart(); 784 if (!mIsImageCaptureIntent) { 785 mSwitcher.setSwitch(SWITCH_CAMERA); 786 } 787 } 788 789 private void checkStorage() { 790 if (ImageManager.isMediaScannerScanning(getContentResolver())) { 791 mPicturesRemaining = MenuHelper.NO_STORAGE_ERROR; 792 } else { 793 calculatePicturesRemaining(); 794 } 795 updateStorageHint(mPicturesRemaining); 796 } 797 798 public void onClick(View v) { 799 switch (v.getId()) { 800 case R.id.btn_retake: 801 hidePostCaptureAlert(); 802 restartPreview(); 803 break; 804 case R.id.review_thumbnail: 805 if (isCameraIdle()) { 806 viewLastImage(); 807 } 808 break; 809 case R.id.btn_done: 810 doAttach(); 811 break; 812 case R.id.btn_cancel: 813 doCancel(); 814 } 815 } 816 817 private void doAttach() { 818 if (mPausing) { 819 return; 820 } 821 Bitmap bitmap = mImageCapture.getLastBitmap(); 822 823 String cropValue = null; 824 Uri saveUri = null; 825 826 Bundle myExtras = getIntent().getExtras(); 827 if (myExtras != null) { 828 saveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 829 cropValue = myExtras.getString("crop"); 830 } 831 832 833 if (cropValue == null) { 834 // First handle the no crop case -- just return the value. If the 835 // caller specifies a "save uri" then write the data to it's 836 // stream. Otherwise, pass back a scaled down version of the bitmap 837 // directly in the extras. 838 if (saveUri != null) { 839 OutputStream outputStream = null; 840 try { 841 outputStream = mContentResolver.openOutputStream(saveUri); 842 bitmap.compress(Bitmap.CompressFormat.JPEG, 75, 843 outputStream); 844 outputStream.close(); 845 846 setResult(RESULT_OK); 847 finish(); 848 } catch (IOException ex) { 849 // ignore exception 850 } finally { 851 if (outputStream != null) { 852 try { 853 outputStream.close(); 854 } catch (IOException ex) { 855 // ignore exception 856 } 857 } 858 } 859 } else { 860 float scale = .5F; 861 Matrix m = new Matrix(); 862 m.setScale(scale, scale); 863 864 bitmap = Bitmap.createBitmap(bitmap, 0, 0, 865 bitmap.getWidth(), 866 bitmap.getHeight(), 867 m, true); 868 869 setResult(RESULT_OK, 870 new Intent("inline-data").putExtra("data", bitmap)); 871 finish(); 872 } 873 } else { 874 // Save the image to a temp file and invoke the cropper 875 Uri tempUri = null; 876 FileOutputStream tempStream = null; 877 try { 878 File path = getFileStreamPath(sTempCropFilename); 879 path.delete(); 880 tempStream = openFileOutput(sTempCropFilename, 0); 881 bitmap.compress(Bitmap.CompressFormat.JPEG, 75, tempStream); 882 tempStream.close(); 883 tempUri = Uri.fromFile(path); 884 } catch (FileNotFoundException ex) { 885 setResult(Activity.RESULT_CANCELED); 886 finish(); 887 return; 888 } catch (IOException ex) { 889 setResult(Activity.RESULT_CANCELED); 890 finish(); 891 return; 892 } finally { 893 if (tempStream != null) { 894 try { 895 tempStream.close(); 896 } catch (IOException ex) { 897 // ignore exception 898 } 899 } 900 } 901 902 Bundle newExtras = new Bundle(); 903 if (cropValue.equals("circle")) { 904 newExtras.putString("circleCrop", "true"); 905 } 906 if (saveUri != null) { 907 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, saveUri); 908 } else { 909 newExtras.putBoolean("return-data", true); 910 } 911 912 Intent cropIntent = new Intent(); 913 cropIntent.setClass(Camera.this, CropImage.class); 914 cropIntent.setData(tempUri); 915 cropIntent.putExtras(newExtras); 916 917 startActivityForResult(cropIntent, CROP_MSG); 918 } 919 } 920 921 private void doCancel() { 922 setResult(RESULT_CANCELED, new Intent()); 923 finish(); 924 } 925 926 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 927 if (mPausing) { 928 return; 929 } 930 switch (button.getId()) { 931 case R.id.shutter_button: 932 doFocus(pressed); 933 break; 934 } 935 } 936 937 public void onShutterButtonClick(ShutterButton button) { 938 if (mPausing) { 939 return; 940 } 941 switch (button.getId()) { 942 case R.id.shutter_button: 943 doSnap(); 944 break; 945 } 946 } 947 948 private void updateStorageHint() { 949 updateStorageHint(MenuHelper.calculatePicturesRemaining()); 950 } 951 952 private OnScreenHint mStorageHint; 953 954 private void updateStorageHint(int remaining) { 955 String noStorageText = null; 956 957 if (remaining == MenuHelper.NO_STORAGE_ERROR) { 958 String state = Environment.getExternalStorageState(); 959 if (state == Environment.MEDIA_CHECKING || 960 ImageManager.isMediaScannerScanning(getContentResolver())) { 961 noStorageText = getString(R.string.preparing_sd); 962 } else { 963 noStorageText = getString(R.string.no_storage); 964 } 965 } else if (remaining < 1) { 966 noStorageText = getString(R.string.not_enough_space); 967 } 968 969 if (noStorageText != null) { 970 if (mStorageHint == null) { 971 mStorageHint = OnScreenHint.makeText(this, noStorageText); 972 } else { 973 mStorageHint.setText(noStorageText); 974 } 975 mStorageHint.show(); 976 } else if (mStorageHint != null) { 977 mStorageHint.cancel(); 978 mStorageHint = null; 979 } 980 } 981 982 void installIntentFilter() { 983 // install an intent filter to receive SD card related events. 984 IntentFilter intentFilter = 985 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 986 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 987 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED); 988 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 989 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 990 intentFilter.addDataScheme("file"); 991 registerReceiver(mReceiver, intentFilter); 992 mDidRegister = true; 993 } 994 995 void initializeFocusTone() { 996 // Initialize focus tone generator. 997 try { 998 mFocusToneGenerator = new ToneGenerator( 999 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1000 } catch (Throwable ex) { 1001 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1002 mFocusToneGenerator = null; 1003 } 1004 } 1005 1006 void readPreference() { 1007 mRecordLocation = mPreferences.getBoolean( 1008 "pref_camera_recordlocation_key", false); 1009 mFocusMode = mPreferences.getString( 1010 CameraSettings.KEY_FOCUS_MODE, 1011 getString(R.string.pref_camera_focusmode_default)); 1012 } 1013 1014 @Override 1015 public void onResume() { 1016 super.onResume(); 1017 1018 mPausing = false; 1019 mJpegPictureCallbackTime = 0; 1020 mImageCapture = new ImageCapture(); 1021 1022 // Start the preview if it is not started. 1023 if (!mPreviewing) { 1024 startPreview(); 1025 } 1026 1027 if (mSurfaceHolder != null) { 1028 // If first time initialization is not finished, put it in the 1029 // message queue. 1030 if (!mFirstTimeInitialized) { 1031 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1032 } else { 1033 initializeSecondTime(); 1034 } 1035 } 1036 1037 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 1038 } 1039 1040 private static ImageManager.DataLocation dataLocation() { 1041 return ImageManager.DataLocation.EXTERNAL; 1042 } 1043 1044 @Override 1045 protected void onPause() { 1046 mPausing = true; 1047 stopPreview(); 1048 // Close the camera now because other activities may need to use it. 1049 closeCamera(); 1050 1051 if (mFirstTimeInitialized) { 1052 mOrientationListener.disable(); 1053 mGpsIndicator.setVisibility(View.INVISIBLE); 1054 if (!mIsImageCaptureIntent) { 1055 mThumbController.storeData( 1056 ImageManager.getLastImageThumbPath()); 1057 } 1058 hidePostCaptureAlert(); 1059 } 1060 1061 if (mDidRegister) { 1062 unregisterReceiver(mReceiver); 1063 mDidRegister = false; 1064 } 1065 stopReceivingLocationUpdates(); 1066 1067 if (mFocusToneGenerator != null) { 1068 mFocusToneGenerator.release(); 1069 mFocusToneGenerator = null; 1070 } 1071 1072 if (mStorageHint != null) { 1073 mStorageHint.cancel(); 1074 mStorageHint = null; 1075 } 1076 1077 // If we are in an image capture intent and has taken 1078 // a picture, we just clear it in onPause. 1079 mImageCapture.clearLastBitmap(); 1080 mImageCapture = null; 1081 1082 // This is necessary to make the ZoomButtonsController unregister 1083 // its configuration change receiver. 1084 if (mZoomButtons != null) { 1085 mZoomButtons.setVisible(false); 1086 } 1087 1088 // Remove the messages in the event queue. 1089 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 1090 mHandler.removeMessages(RESTART_PREVIEW); 1091 mHandler.removeMessages(FIRST_TIME_INIT); 1092 1093 super.onPause(); 1094 } 1095 1096 @Override 1097 protected void onActivityResult( 1098 int requestCode, int resultCode, Intent data) { 1099 switch (requestCode) { 1100 case CROP_MSG: { 1101 Intent intent = new Intent(); 1102 if (data != null) { 1103 Bundle extras = data.getExtras(); 1104 if (extras != null) { 1105 intent.putExtras(extras); 1106 } 1107 } 1108 setResult(resultCode, intent); 1109 finish(); 1110 1111 File path = getFileStreamPath(sTempCropFilename); 1112 path.delete(); 1113 1114 break; 1115 } 1116 } 1117 } 1118 1119 private boolean canTakePicture() { 1120 return isCameraIdle() && mPreviewing && (mPicturesRemaining > 0); 1121 } 1122 1123 private void autoFocus() { 1124 // Initiate autofocus only when preview is started and snapshot is not 1125 // in progress. 1126 if (canTakePicture()) { 1127 Log.v(TAG, "Start autofocus."); 1128 if (mZoomButtons != null) mZoomButtons.setVisible(false); 1129 mFocusStartTime = System.currentTimeMillis(); 1130 mFocusState = FOCUSING; 1131 updateFocusIndicator(); 1132 mCameraDevice.autoFocus(mAutoFocusCallback); 1133 } 1134 } 1135 1136 private void clearFocusState() { 1137 mFocusState = FOCUS_NOT_STARTED; 1138 updateFocusIndicator(); 1139 } 1140 1141 private void updateFocusIndicator() { 1142 if (mFocusRectangle == null) return; 1143 1144 if (mFocusState == FOCUSING || mFocusState == FOCUSING_SNAP_ON_FINISH) { 1145 mFocusRectangle.showStart(); 1146 } else if (mFocusState == FOCUS_SUCCESS) { 1147 mFocusRectangle.showSuccess(); 1148 } else if (mFocusState == FOCUS_FAIL) { 1149 mFocusRectangle.showFail(); 1150 } else { 1151 mFocusRectangle.clear(); 1152 } 1153 } 1154 1155 @Override 1156 public boolean onKeyDown(int keyCode, KeyEvent event) { 1157 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 1158 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1159 1160 switch (keyCode) { 1161 case KeyEvent.KEYCODE_BACK: 1162 if (!isCameraIdle()) { 1163 // ignore backs while we're taking a picture 1164 return true; 1165 } 1166 break; 1167 case KeyEvent.KEYCODE_FOCUS: 1168 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1169 doFocus(true); 1170 } 1171 return true; 1172 case KeyEvent.KEYCODE_CAMERA: 1173 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1174 doSnap(); 1175 } 1176 return true; 1177 case KeyEvent.KEYCODE_DPAD_CENTER: 1178 // If we get a dpad center event without any focused view, move 1179 // the focus to the shutter button and press it. 1180 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1181 // Start auto-focus immediately to reduce shutter lag. After 1182 // the shutter button gets the focus, doFocus() will be 1183 // called again but it is fine. 1184 doFocus(true); 1185 if (mShutterButton.isInTouchMode()) { 1186 mShutterButton.requestFocusFromTouch(); 1187 } else { 1188 mShutterButton.requestFocus(); 1189 } 1190 mShutterButton.setPressed(true); 1191 } 1192 return true; 1193 } 1194 1195 return super.onKeyDown(keyCode, event); 1196 } 1197 1198 @Override 1199 public boolean onKeyUp(int keyCode, KeyEvent event) { 1200 switch (keyCode) { 1201 case KeyEvent.KEYCODE_FOCUS: 1202 if (mFirstTimeInitialized) { 1203 doFocus(false); 1204 } 1205 return true; 1206 } 1207 return super.onKeyUp(keyCode, event); 1208 } 1209 1210 @Override 1211 public boolean onTouchEvent(MotionEvent event) { 1212 switch (event.getAction()) { 1213 case MotionEvent.ACTION_DOWN: 1214 // Show zoom buttons only when preview is started and snapshot 1215 // is not in progress. mZoomButtons may be null if it is not 1216 // initialized. 1217 if (!mPausing && isCameraIdle() && mPreviewing 1218 && mZoomButtons != null) { 1219 mZoomButtons.setVisible(true); 1220 } 1221 return true; 1222 } 1223 return super.onTouchEvent(event); 1224 } 1225 1226 private void doSnap() { 1227 // If the user has half-pressed the shutter and focus is completed, we 1228 // can take the photo right away. If the focus mode is infinity, we can 1229 // also take the photo. 1230 if (mFocusMode.equals(getString( 1231 R.string.pref_camera_focusmode_value_infinity)) 1232 || (mFocusState == FOCUS_SUCCESS 1233 || mFocusState == FOCUS_FAIL)) { 1234 if (mZoomButtons != null) mZoomButtons.setVisible(false); 1235 mImageCapture.onSnap(); 1236 } else if (mFocusState == FOCUSING) { 1237 // Half pressing the shutter (i.e. the focus button event) will 1238 // already have requested AF for us, so just request capture on 1239 // focus here. 1240 mFocusState = FOCUSING_SNAP_ON_FINISH; 1241 } else if (mFocusState == FOCUS_NOT_STARTED) { 1242 // Focus key down event is dropped for some reasons. Just ignore. 1243 } 1244 } 1245 1246 private void doFocus(boolean pressed) { 1247 // Do the focus if the mode is auto. No focus needed in infinity mode. 1248 if (mFocusMode.equals(getString( 1249 R.string.pref_camera_focusmode_value_auto))) { 1250 if (pressed) { // Focus key down. 1251 autoFocus(); 1252 } else { // Focus key up. 1253 if (mFocusState != FOCUSING_SNAP_ON_FINISH) { 1254 // User releases half-pressed focus key. 1255 clearFocusState(); 1256 } 1257 } 1258 } 1259 } 1260 1261 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1262 // Make sure we have a surface in the holder before proceeding. 1263 if (holder.getSurface() == null) { 1264 Log.d(TAG, "holder.getSurface() == null"); 1265 return; 1266 } 1267 1268 mSurfaceHolder = holder; 1269 mViewFinderWidth = w; 1270 mViewFinderHeight = h; 1271 1272 // Sometimes surfaceChanged is called after onPause. Ignore it. 1273 if (mPausing) return; 1274 1275 // Set preview display if the surface is being created. Preview was 1276 // already started. 1277 if (holder.isCreating()) { 1278 setPreviewDisplay(holder); 1279 } 1280 1281 // If first time initialization is not finished, send a message to do 1282 // it later. We want to finish surfaceChanged as soon as possible to let 1283 // user see preview first. 1284 if (!mFirstTimeInitialized) { 1285 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1286 } else { 1287 initializeSecondTime(); 1288 } 1289 } 1290 1291 public void surfaceCreated(SurfaceHolder holder) { 1292 } 1293 1294 public void surfaceDestroyed(SurfaceHolder holder) { 1295 stopPreview(); 1296 mSurfaceHolder = null; 1297 } 1298 1299 private void closeCamera() { 1300 if (mCameraDevice != null) { 1301 CameraHolder.instance().release(); 1302 mCameraDevice = null; 1303 mPreviewing = false; 1304 } 1305 } 1306 1307 private boolean ensureCameraDevice() { 1308 if (mCameraDevice == null) { 1309 mCameraDevice = CameraHolder.instance().open(); 1310 } 1311 return mCameraDevice != null; 1312 } 1313 1314 private void updateLastImage() { 1315 IImageList list = ImageManager.allImages( 1316 mContentResolver, 1317 dataLocation(), 1318 ImageManager.INCLUDE_IMAGES, 1319 ImageManager.SORT_ASCENDING, 1320 ImageManager.CAMERA_IMAGE_BUCKET_ID); 1321 int count = list.getCount(); 1322 if (count > 0) { 1323 IImage image = list.getImageAt(count - 1); 1324 Uri uri = image.fullSizeImageUri(); 1325 mThumbController.setData(uri, image.miniThumbBitmap()); 1326 } else { 1327 mThumbController.setData(null, null); 1328 } 1329 list.deactivate(); 1330 } 1331 1332 private void restartPreview() { 1333 // make sure the surfaceview fills the whole screen when previewing 1334 mSurfaceView.setAspectRatio(VideoPreview.DONT_CARE); 1335 startPreview(); 1336 1337 // Calculate this in advance of each shot so we don't add to shutter 1338 // latency. It's true that someone else could write to the SD card in 1339 // the mean time and fill it, but that could have happened between the 1340 // shutter press and saving the JPEG too. 1341 calculatePicturesRemaining(); 1342 } 1343 1344 private void setPreviewDisplay(SurfaceHolder holder) { 1345 try { 1346 mCameraDevice.setPreviewDisplay(holder); 1347 } catch (Throwable ex) { 1348 closeCamera(); 1349 throw new RuntimeException("setPreviewDisplay failed", ex); 1350 } 1351 } 1352 1353 private void startPreview() { 1354 if (mPausing) return; 1355 1356 if (!ensureCameraDevice()) return; 1357 1358 if (isFinishing()) return; 1359 1360 // If we're previewing already, stop the preview first (this will blank 1361 // the screen). 1362 if (mPreviewing) stopPreview(); 1363 1364 setPreviewDisplay(mSurfaceHolder); 1365 1366 setCameraParameter(); 1367 1368 final long wallTimeStart = SystemClock.elapsedRealtime(); 1369 final long threadTimeStart = Debug.threadCpuTimeNanos(); 1370 1371 // Set one shot preview callback for latency measurement. 1372 mCameraDevice.setOneShotPreviewCallback(mOneShotPreviewCallback); 1373 mCameraDevice.setErrorCallback(mErrorCallback); 1374 1375 try { 1376 Log.v(TAG, "startPreview"); 1377 mCameraDevice.startPreview(); 1378 } catch (Throwable ex) { 1379 closeCamera(); 1380 throw new RuntimeException("startPreview failed", ex); 1381 } 1382 mPreviewing = true; 1383 mStatus = IDLE; 1384 1385 long threadTimeEnd = Debug.threadCpuTimeNanos(); 1386 long wallTimeEnd = SystemClock.elapsedRealtime(); 1387 if ((wallTimeEnd - wallTimeStart) > 3000) { 1388 Log.w(TAG, "startPreview() to " + (wallTimeEnd - wallTimeStart) 1389 + " ms. Thread time was" 1390 + (threadTimeEnd - threadTimeStart) / 1000000 + " ms."); 1391 } 1392 } 1393 1394 private void stopPreview() { 1395 if (mCameraDevice != null && mPreviewing) { 1396 Log.v(TAG, "stopPreview"); 1397 mCameraDevice.stopPreview(); 1398 } 1399 mPreviewing = false; 1400 // If auto focus was in progress, it would have been canceled. 1401 clearFocusState(); 1402 } 1403 1404 private void setCameraParameter() { 1405 // request the preview size, the hardware may not honor it, 1406 // if we depended on it we would have to query the size again 1407 mParameters = mCameraDevice.getParameters(); 1408 mParameters.setPreviewSize(mViewFinderWidth, mViewFinderHeight); 1409 1410 // Set picture size parameter. 1411 String pictureSize = mPreferences.getString( 1412 CameraSettings.KEY_PICTURE_SIZE, 1413 getString(R.string.pref_camera_picturesize_default)); 1414 mParameters.set(PARM_PICTURE_SIZE, pictureSize); 1415 1416 // Set JPEG quality parameter. 1417 String jpegQuality = mPreferences.getString( 1418 CameraSettings.KEY_JPEG_QUALITY, 1419 getString(R.string.pref_camera_jpegquality_default)); 1420 mParameters.set(PARM_JPEG_QUALITY, jpegQuality); 1421 1422 mCameraDevice.setParameters(mParameters); 1423 } 1424 1425 void gotoGallery() { 1426 MenuHelper.gotoCameraImageGallery(this); 1427 } 1428 1429 private void viewLastImage() { 1430 if (mThumbController.isUriValid()) { 1431 Uri targetUri = mThumbController.getUri(); 1432 targetUri = targetUri.buildUpon().appendQueryParameter( 1433 "bucketId", ImageManager.CAMERA_IMAGE_BUCKET_ID).build(); 1434 Intent intent = new Intent(this, ReviewImage.class); 1435 intent.setData(targetUri); 1436 intent.putExtra(MediaStore.EXTRA_FULL_SCREEN, true); 1437 intent.putExtra(MediaStore.EXTRA_SHOW_ACTION_ICONS, true); 1438 intent.putExtra("com.android.camera.ReviewMode", true); 1439 try { 1440 startActivity(intent); 1441 } catch (ActivityNotFoundException ex) { 1442 Log.e(TAG, "review image fail", ex); 1443 } 1444 } else { 1445 Log.e(TAG, "Can't view last image."); 1446 } 1447 } 1448 1449 private void startReceivingLocationUpdates() { 1450 if (mLocationManager != null) { 1451 try { 1452 mLocationManager.requestLocationUpdates( 1453 LocationManager.NETWORK_PROVIDER, 1454 1000, 1455 0F, 1456 mLocationListeners[1]); 1457 } catch (java.lang.SecurityException ex) { 1458 Log.i(TAG, "fail to request location update, ignore", ex); 1459 } catch (IllegalArgumentException ex) { 1460 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1461 } 1462 try { 1463 mLocationManager.requestLocationUpdates( 1464 LocationManager.GPS_PROVIDER, 1465 1000, 1466 0F, 1467 mLocationListeners[0]); 1468 } catch (java.lang.SecurityException ex) { 1469 Log.i(TAG, "fail to request location update, ignore", ex); 1470 } catch (IllegalArgumentException ex) { 1471 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1472 } 1473 } 1474 } 1475 1476 private void stopReceivingLocationUpdates() { 1477 if (mLocationManager != null) { 1478 for (int i = 0; i < mLocationListeners.length; i++) { 1479 try { 1480 mLocationManager.removeUpdates(mLocationListeners[i]); 1481 } catch (Exception ex) { 1482 Log.i(TAG, "fail to remove location listners, ignore", ex); 1483 } 1484 } 1485 } 1486 } 1487 1488 private Location getCurrentLocation() { 1489 // go in best to worst order 1490 for (int i = 0; i < mLocationListeners.length; i++) { 1491 Location l = mLocationListeners[i].current(); 1492 if (l != null) return l; 1493 } 1494 return null; 1495 } 1496 1497 private boolean isCameraIdle() { 1498 return mStatus == IDLE && mFocusState == FOCUS_NOT_STARTED; 1499 } 1500 1501 private boolean isImageCaptureIntent() { 1502 String action = getIntent().getAction(); 1503 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 1504 } 1505 1506 private void showPostCaptureAlert() { 1507 if (mIsImageCaptureIntent) { 1508 findViewById(R.id.shutter_button).setVisibility(View.INVISIBLE); 1509 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1510 for (int id : pickIds) { 1511 View button = findViewById(id); 1512 ((View) button.getParent()).setVisibility(View.VISIBLE); 1513 } 1514 } 1515 } 1516 1517 private void hidePostCaptureAlert() { 1518 if (mIsImageCaptureIntent) { 1519 findViewById(R.id.shutter_button).setVisibility(View.VISIBLE); 1520 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 1521 for (int id : pickIds) { 1522 View button = findViewById(id); 1523 ((View) button.getParent()).setVisibility(View.GONE); 1524 } 1525 } 1526 } 1527 1528 private int calculatePicturesRemaining() { 1529 mPicturesRemaining = MenuHelper.calculatePicturesRemaining(); 1530 return mPicturesRemaining; 1531 } 1532 1533 @Override 1534 public boolean onPrepareOptionsMenu(Menu menu) { 1535 super.onPrepareOptionsMenu(menu); 1536 1537 for (int i = 1; i <= MenuHelper.MENU_ITEM_MAX; i++) { 1538 menu.setGroupVisible(i, false); 1539 } 1540 1541 // Only show the menu when camera is idle. 1542 if (isCameraIdle()) { 1543 menu.setGroupVisible(MenuHelper.GENERIC_ITEM, true); 1544 menu.setGroupVisible(MenuHelper.IMAGE_MODE_ITEM, true); 1545 } 1546 1547 return true; 1548 } 1549 1550 @Override 1551 public boolean onCreateOptionsMenu(Menu menu) { 1552 super.onCreateOptionsMenu(menu); 1553 1554 if (mIsImageCaptureIntent) { 1555 // No options menu for attach mode. 1556 return false; 1557 } else { 1558 addBaseMenuItems(menu); 1559 } 1560 return true; 1561 } 1562 1563 private void addBaseMenuItems(Menu menu) { 1564 MenuHelper.addSwitchModeMenuItem(menu, this, true); 1565 { 1566 MenuItem gallery = menu.add( 1567 MenuHelper.IMAGE_MODE_ITEM, MENU_GALLERY_PHOTOS, 0, 1568 R.string.camera_gallery_photos_text) 1569 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1570 public boolean onMenuItemClick(MenuItem item) { 1571 gotoGallery(); 1572 return true; 1573 } 1574 }); 1575 gallery.setIcon(android.R.drawable.ic_menu_gallery); 1576 mGalleryItems.add(gallery); 1577 } 1578 { 1579 MenuItem gallery = menu.add( 1580 MenuHelper.VIDEO_MODE_ITEM, MENU_GALLERY_VIDEOS, 0, 1581 R.string.camera_gallery_photos_text) 1582 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1583 public boolean onMenuItemClick(MenuItem item) { 1584 gotoGallery(); 1585 return true; 1586 } 1587 }); 1588 gallery.setIcon(android.R.drawable.ic_menu_gallery); 1589 mGalleryItems.add(gallery); 1590 } 1591 1592 MenuItem item = menu.add(MenuHelper.GENERIC_ITEM, MENU_SETTINGS, 1593 0, R.string.settings) 1594 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1595 public boolean onMenuItemClick(MenuItem item) { 1596 // Keep the camera instance for a while. 1597 // This avoids re-opening the camera and saves time. 1598 CameraHolder.instance().keep(); 1599 1600 Intent intent = new Intent(); 1601 intent.setClass(Camera.this, CameraSettings.class); 1602 startActivity(intent); 1603 return true; 1604 } 1605 }); 1606 item.setIcon(android.R.drawable.ic_menu_preferences); 1607 } 1608 1609 public boolean onSwitchChanged(Switcher source, boolean onOff) { 1610 if (onOff == SWITCH_VIDEO) { 1611 if (!isCameraIdle()) return false; 1612 MenuHelper.gotoVideoMode(this); 1613 finish(); 1614 } 1615 return true; 1616 } 1617} 1618 1619class FocusRectangle extends View { 1620 1621 @SuppressWarnings("unused") 1622 private static final String TAG = "FocusRectangle"; 1623 1624 public FocusRectangle(Context context, AttributeSet attrs) { 1625 super(context, attrs); 1626 } 1627 1628 private void setDrawable(int resid) { 1629 setBackgroundDrawable(getResources().getDrawable(resid)); 1630 } 1631 1632 public void showStart() { 1633 setDrawable(R.drawable.focus_focusing); 1634 } 1635 1636 public void showSuccess() { 1637 setDrawable(R.drawable.focus_focused); 1638 } 1639 1640 public void showFail() { 1641 setDrawable(R.drawable.focus_focus_failed); 1642 } 1643 1644 public void clear() { 1645 setBackgroundDrawable(null); 1646 } 1647} 1648