Camera.java revision 5e5aa7e1e8bd03e9919d5f14b9f5df75cf68ff8f
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.ICancelable; 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.content.pm.ActivityInfo; 32import android.content.res.Resources; 33import android.graphics.Bitmap; 34import android.graphics.BitmapFactory; 35import android.graphics.Matrix; 36import android.graphics.drawable.BitmapDrawable; 37import android.graphics.drawable.Drawable; 38import android.hardware.Camera.PictureCallback; 39import android.hardware.Camera.Size; 40import android.location.Location; 41import android.location.LocationManager; 42import android.location.LocationProvider; 43import android.media.AudioManager; 44import android.media.ToneGenerator; 45import android.net.Uri; 46import android.os.Bundle; 47import android.os.Debug; 48import android.os.Environment; 49import android.os.Handler; 50import android.os.Message; 51import android.os.SystemClock; 52import android.preference.PreferenceManager; 53import android.provider.MediaStore; 54import android.text.format.DateFormat; 55import android.util.AttributeSet; 56import android.util.Config; 57import android.util.Log; 58import android.view.Gravity; 59import android.view.KeyEvent; 60import android.view.Menu; 61import android.view.MenuItem; 62import android.view.OrientationEventListener; 63import android.view.SurfaceHolder; 64import android.view.View; 65import android.view.ViewGroup; 66import android.view.Window; 67import android.view.WindowManager; 68import android.view.MenuItem.OnMenuItemClickListener; 69import android.view.animation.AlphaAnimation; 70import android.view.animation.Animation; 71import android.view.animation.AnimationUtils; 72import android.widget.ImageView; 73import android.widget.Toast; 74 75import java.io.File; 76import java.io.FileNotFoundException; 77import java.io.FileOutputStream; 78import java.io.IOException; 79import java.io.OutputStream; 80import java.util.ArrayList; 81 82/** 83 * Activity of the Camera which used to see preview and take pictures. 84 */ 85public class Camera extends Activity implements View.OnClickListener, 86 ShutterButton.OnShutterButtonListener, SurfaceHolder.Callback { 87 88 private static final String TAG = "camera"; 89 90 private static final boolean DEBUG_TIME_OPERATIONS = false; 91 92 private static final int CROP_MSG = 1; 93 private static final int RESTART_PREVIEW = 3; 94 private static final int CLEAR_SCREEN_DELAY = 4; 95 96 private static final int SCREEN_DELAY = 2 * 60 * 1000; 97 private static final int FOCUS_BEEP_VOLUME = 100; 98 99 public static final int MENU_SWITCH_TO_VIDEO = 0; 100 public static final int MENU_SWITCH_TO_CAMERA = 1; 101 public static final int MENU_FLASH_SETTING = 2; 102 public static final int MENU_FLASH_AUTO = 3; 103 public static final int MENU_FLASH_ON = 4; 104 public static final int MENU_FLASH_OFF = 5; 105 public static final int MENU_SETTINGS = 6; 106 public static final int MENU_GALLERY_PHOTOS = 7; 107 public static final int MENU_GALLERY_VIDEOS = 8; 108 public static final int MENU_SAVE_SELECT_PHOTOS = 30; 109 public static final int MENU_SAVE_NEW_PHOTO = 31; 110 public static final int MENU_SAVE_GALLERY_PHOTO = 34; 111 public static final int MENU_SAVE_GALLERY_VIDEO_PHOTO = 35; 112 public static final int MENU_SAVE_CAMERA_DONE = 36; 113 public static final int MENU_SAVE_CAMERA_VIDEO_DONE = 37; 114 115 private android.hardware.Camera.Parameters mParameters; 116 117 // The parameter strings to communicate with camera driver. 118 public static final String PARM_WHITE_BALANCE = "whitebalance"; 119 public static final String PARM_EFFECT = "effect"; 120 public static final String PARM_BRIGHTNESS = "exposure-offset"; 121 public static final String PARM_PICTURE_SIZE = "picture-size"; 122 public static final String PARM_JPEG_QUALITY = "jpeg-quality"; 123 public static final String PARM_ROTATION = "rotation"; 124 public static final String PARM_GPS_LATITUDE = "gps-latitude"; 125 public static final String PARM_GPS_LONGITUDE = "gps-longitude"; 126 public static final String PARM_GPS_ALTITUDE = "gps-altitude"; 127 public static final String PARM_GPS_TIMESTAMP = "gps-timestamp"; 128 public static final String SUPPORTED_WHITE_BALANCE = "whitebalance-values"; 129 public static final String SUPPORTED_EFFECT = "effect-values"; 130 public static final String SUPPORTED_BRIGHTNESS = "exposure-offset-values"; 131 public static final String SUPPORTED_PICTURE_SIZE = "picture-size-values"; 132 133 private OrientationEventListener mOrientationListener; 134 private int mLastOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 135 private SharedPreferences mPreferences; 136 137 private static final int IDLE = 1; 138 private static final int SNAPSHOT_IN_PROGRESS = 2; 139 private static final int SNAPSHOT_COMPLETED = 3; 140 141 private int mStatus = IDLE; 142 private static final String sTempCropFilename = "crop-temp"; 143 144 private android.hardware.Camera mCameraDevice; 145 private VideoPreview mSurfaceView; 146 private SurfaceHolder mSurfaceHolder = null; 147 148 private int mOriginalViewFinderWidth, mOriginalViewFinderHeight; 149 private int mViewFinderWidth, mViewFinderHeight; 150 private boolean mPreviewing = false; 151 152 // TODO: Decide whether we should read these values from drivers, 153 // and update the preference screen if needed. 154 private static final int BRIGHTNESS_DEFAULT = 5; 155 private static final int BRIGHTNESS_MAX = 10; 156 private static final int BRIGHTNESS_MIN = 0; 157 private int mCurrentBrightness; 158 159 private Capturer mCaptureObject; 160 private ImageCapture mImageCapture = null; 161 162 private boolean mPausing = false; 163 164 private static final int FOCUS_NOT_STARTED = 0; 165 private static final int FOCUSING = 1; 166 private static final int FOCUSING_SNAP_ON_FINISH = 2; 167 private static final int FOCUS_SUCCESS = 3; 168 private static final int FOCUS_FAIL = 4; 169 private int mFocusState = FOCUS_NOT_STARTED; 170 171 private ContentResolver mContentResolver; 172 private boolean mDidRegister = false; 173 174 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 175 176 private LocationManager mLocationManager = null; 177 178 private ShutterButton mShutterButton; 179 180 private Animation mFocusBlinkAnimation; 181 private View mFocusIndicator; 182 private FocusRectangle mFocusRectangle; 183 private ImageView mGpsIndicator; 184 private ToneGenerator mFocusToneGenerator; 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 private boolean mRecordLocation; 203 204 // Focus mode. Options are pref_camera_focusmode_entryvalues. 205 private String mFocusMode; 206 207 private boolean mKeepAndRestartPreview; 208 209 private boolean mIsImageCaptureIntent; 210 211 // mPostCaptureAlert, mLastPictureButton, mThumbController 212 // are non-null only if isImageCaptureIntent() is true. 213 private View mPostCaptureAlert; 214 private ImageView mLastPictureButton; 215 private ThumbnailController mThumbController; 216 217 private final Handler mHandler = new MainHandler(); 218 219 private interface Capturer { 220 Uri getLastCaptureUri(); 221 void onSnap(); 222 void dismissFreezeFrame(); 223 } 224 225 /** 226 * This Handler is used to post message back onto the main thread of the 227 * application 228 */ 229 private class MainHandler extends Handler { 230 @Override 231 public void handleMessage(Message msg) { 232 switch (msg.what) { 233 case RESTART_PREVIEW: { 234 if (mStatus == SNAPSHOT_IN_PROGRESS) { 235 // We are still in the processing of taking the picture, 236 // wait. This is strange. Why are we polling? 237 // TODO: remove polling 238 mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, 100); 239 } else if (mStatus == SNAPSHOT_COMPLETED){ 240 mCaptureObject.dismissFreezeFrame(); 241 hidePostCaptureAlert(); 242 } 243 break; 244 } 245 246 case CLEAR_SCREEN_DELAY: { 247 getWindow().clearFlags( 248 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 249 break; 250 } 251 } 252 } 253 } 254 255 LocationListener [] mLocationListeners = new LocationListener[] { 256 new LocationListener(LocationManager.GPS_PROVIDER), 257 new LocationListener(LocationManager.NETWORK_PROVIDER) 258 }; 259 260 261 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 262 @Override 263 public void onReceive(Context context, Intent intent) { 264 String action = intent.getAction(); 265 if (action.equals(Intent.ACTION_MEDIA_MOUNTED)) { 266 // SD card available 267 updateStorageHint(calculatePicturesRemaining()); 268 } else if (action.equals(Intent.ACTION_MEDIA_UNMOUNTED) || 269 action.equals(Intent.ACTION_MEDIA_CHECKING)) { 270 // SD card unavailable 271 mPicturesRemaining = MenuHelper.NO_STORAGE_ERROR; 272 updateStorageHint(mPicturesRemaining); 273 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_STARTED)) { 274 Toast.makeText(Camera.this, 275 getResources().getString(R.string.wait), 5000); 276 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 277 updateStorageHint(); 278 } 279 } 280 }; 281 282 private class LocationListener 283 implements android.location.LocationListener { 284 Location mLastLocation; 285 boolean mValid = false; 286 String mProvider; 287 288 public LocationListener(String provider) { 289 mProvider = provider; 290 mLastLocation = new Location(mProvider); 291 } 292 293 public void onLocationChanged(Location newLocation) { 294 if (newLocation.getLatitude() == 0.0 295 && newLocation.getLongitude() == 0.0) { 296 // Hack to filter out 0.0,0.0 locations 297 return; 298 } 299 // If GPS is available before start camera, we won't get status 300 // update so update GPS indicator when we receive data. 301 if (mRecordLocation 302 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 303 mGpsIndicator.setVisibility(View.VISIBLE); 304 } 305 mLastLocation.set(newLocation); 306 mValid = true; 307 } 308 309 public void onProviderEnabled(String provider) { 310 } 311 312 public void onProviderDisabled(String provider) { 313 mValid = false; 314 } 315 316 public void onStatusChanged( 317 String provider, int status, Bundle extras) { 318 switch(status) { 319 case LocationProvider.OUT_OF_SERVICE: 320 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 321 mValid = false; 322 if (mRecordLocation && 323 LocationManager.GPS_PROVIDER.equals(provider)) { 324 mGpsIndicator.setVisibility(View.INVISIBLE); 325 } 326 break; 327 } 328 } 329 } 330 331 public Location current() { 332 return mValid ? mLastLocation : null; 333 } 334 } 335 336 private boolean mImageSavingItem = false; 337 338 private final class OneShotPreviewCallback 339 implements android.hardware.Camera.PreviewCallback { 340 public void onPreviewFrame(byte[] data, 341 android.hardware.Camera camera) { 342 long now = System.currentTimeMillis(); 343 if (mJpegPictureCallbackTime != 0) { 344 Log.v(TAG, (now - mJpegPictureCallbackTime) 345 + "ms elapsed between JpegPictureCallback and preview " 346 + "restarted."); 347 mJpegPictureCallbackTime = 0; 348 } 349 } 350 } 351 352 private final class ShutterCallback 353 implements android.hardware.Camera.ShutterCallback { 354 public void onShutter() { 355 mShutterCallbackTime = System.currentTimeMillis(); 356 Log.v(TAG, "Shutter lag was " 357 + (mShutterCallbackTime - mCaptureStartTime) + " ms."); 358 359 // We are going to change the size of surface view and show captured 360 // image. Set it to invisible now and set it back to visible in 361 // surfaceChanged() so that users won't see the image is resized on 362 // the screen. 363 mSurfaceView.setVisibility(View.INVISIBLE); 364 // Resize the SurfaceView to the aspect-ratio of the still image 365 // and so that we can see the full image that was taken. 366 Size pictureSize = mParameters.getPictureSize(); 367 mSurfaceView.setAspectRatio(pictureSize.width, pictureSize.height); 368 } 369 } 370 371 private final class RawPictureCallback implements PictureCallback { 372 public void onPictureTaken( 373 byte [] rawData, android.hardware.Camera camera) { 374 mRawPictureCallbackTime = System.currentTimeMillis(); 375 Log.v(TAG, (mRawPictureCallbackTime - mShutterCallbackTime) 376 + "ms elapsed between" 377 + " ShutterCallback and RawPictureCallback."); 378 } 379 } 380 381 private final class JpegPictureCallback implements PictureCallback { 382 Location mLocation; 383 384 public JpegPictureCallback(Location loc) { 385 mLocation = loc; 386 } 387 388 public void onPictureTaken( 389 byte [] jpegData, android.hardware.Camera camera) { 390 if (mPausing) { 391 return; 392 } 393 394 mJpegPictureCallbackTime = System.currentTimeMillis(); 395 Log.v(TAG, (mJpegPictureCallbackTime - mRawPictureCallbackTime) 396 + "ms elapsed between" 397 + " RawPictureCallback and JpegPictureCallback."); 398 399 if (jpegData != null) { 400 mImageCapture.storeImage(jpegData, camera, mLocation); 401 } 402 403 mStatus = SNAPSHOT_COMPLETED; 404 405 if (mKeepAndRestartPreview) { 406 long delay = 1500 - ( 407 System.currentTimeMillis() - mRawPictureCallbackTime); 408 mHandler.sendEmptyMessageDelayed( 409 RESTART_PREVIEW, Math.max(delay, 0)); 410 } 411 } 412 } 413 414 private final class AutoFocusCallback 415 implements android.hardware.Camera.AutoFocusCallback { 416 public void onAutoFocus( 417 boolean focused, android.hardware.Camera camera) { 418 mFocusCallbackTime = System.currentTimeMillis(); 419 Log.v(TAG, "Auto focus took " 420 + (mFocusCallbackTime - mFocusStartTime) + " ms."); 421 422 if (mFocusState == FOCUSING_SNAP_ON_FINISH 423 && mCaptureObject != null) { 424 // Take the picture no matter focus succeeds or fails. No need 425 // to play the AF sound if we're about to play the shutter 426 // sound. 427 mCaptureObject.onSnap(); 428 clearFocusState(); 429 } else if (mFocusState == FOCUSING) { 430 // User is half-pressing the focus key. Play the focus tone. 431 // Do not take the picture now. 432 ToneGenerator tg = mFocusToneGenerator; 433 if (tg != null) { 434 tg.startTone(ToneGenerator.TONE_PROP_BEEP2); 435 } 436 if (focused) { 437 mFocusState = FOCUS_SUCCESS; 438 } else { 439 mFocusState = FOCUS_FAIL; 440 } 441 } else if (mFocusState == FOCUS_NOT_STARTED) { 442 // User has released the focus key before focus completes. 443 // Do nothing. 444 } 445 updateFocusIndicator(); 446 } 447 } 448 449 private class ImageCapture implements Capturer { 450 451 private boolean mCancel = false; 452 private boolean mCapturing = false; 453 454 private Uri mLastContentUri; 455 private ICancelable<Void> mAddImageCancelable; 456 457 Bitmap mCaptureOnlyBitmap; 458 459 /** These member variables are used for various debug timings */ 460 private long mThreadTimeStart; 461 private long mThreadTimeEnd; 462 private long mWallTimeStart; 463 private long mWallTimeEnd; 464 465 466 public ImageCapture() { 467 } 468 469 /** 470 * This method sets whether or not we are capturing a picture. This 471 * method must be called with the ImageCapture.this lock held. 472 */ 473 public void setCapturingLocked(boolean capturing) { 474 mCapturing = capturing; 475 } 476 477 public void dismissFreezeFrame() { 478 if (mStatus == SNAPSHOT_IN_PROGRESS) { 479 // If we are still in the process of taking a picture, 480 // then just post a message. 481 mHandler.sendEmptyMessage(RESTART_PREVIEW); 482 } else { 483 restartPreview(); 484 } 485 } 486 487 private void startTiming() { 488 mWallTimeStart = SystemClock.elapsedRealtime(); 489 mThreadTimeStart = Debug.threadCpuTimeNanos(); 490 } 491 492 private void stopTiming() { 493 mThreadTimeEnd = Debug.threadCpuTimeNanos(); 494 mWallTimeEnd = SystemClock.elapsedRealtime(); 495 } 496 497 private void storeImage(byte[] data, Location loc) { 498 try { 499 if (DEBUG_TIME_OPERATIONS) { 500 startTiming(); 501 } 502 503 long dateTaken = System.currentTimeMillis(); 504 String name = createName(dateTaken) + ".jpg"; 505 mLastContentUri = ImageManager.addImage( 506 mContentResolver, 507 name, 508 dateTaken, 509 loc, // location for the database goes here 510 0, // the dsp will use the right orientation so 511 // don't "double set it" 512 ImageManager.CAMERA_IMAGE_BUCKET_NAME, 513 name); 514 if (mLastContentUri == null) { 515 // this means we got an error 516 mCancel = true; 517 } 518 if (!mCancel) { 519 mAddImageCancelable = ImageManager.storeImage( 520 mLastContentUri, mContentResolver, 521 0, null, data); 522 mAddImageCancelable.get(); 523 mAddImageCancelable = null; 524 ImageManager.setImageSize(mContentResolver, mLastContentUri, 525 new File(ImageManager.CAMERA_IMAGE_BUCKET_NAME, 526 name).length()); 527 } 528 529 if (DEBUG_TIME_OPERATIONS) { 530 stopTiming(); 531 Log.d(TAG, "Storing image took " 532 + (mWallTimeEnd - mWallTimeStart) + " ms. " 533 + "Thread time was " 534 + ((mThreadTimeEnd - mThreadTimeStart) / 1000000) 535 + " ms."); 536 } 537 } catch (Exception ex) { 538 Log.e(TAG, "Exception while compressing image.", ex); 539 } 540 } 541 542 public void storeImage( 543 byte[] data, android.hardware.Camera camera, Location loc) { 544 boolean captureOnly = mIsImageCaptureIntent; 545 546 if (!captureOnly) { 547 storeImage(data, loc); 548 sendBroadcast(new Intent( 549 "com.android.camera.NEW_PICTURE", mLastContentUri)); 550 setLastPictureThumb(data, mCaptureObject.getLastCaptureUri()); 551 dismissFreezeFrame(); 552 } else { 553 BitmapFactory.Options options = new BitmapFactory.Options(); 554 options.inSampleSize = 4; 555 556 if (DEBUG_TIME_OPERATIONS) { 557 startTiming(); 558 } 559 560 mCaptureOnlyBitmap = BitmapFactory.decodeByteArray( 561 data, 0, data.length, options); 562 563 if (DEBUG_TIME_OPERATIONS) { 564 stopTiming(); 565 Log.d(TAG, "Decoded mCaptureOnly bitmap (" 566 + mCaptureOnlyBitmap.getWidth() + "x" 567 + mCaptureOnlyBitmap.getHeight() + " ) in " 568 + (mWallTimeEnd - mWallTimeStart) 569 + " ms. Thread time was " 570 + ((mThreadTimeEnd - mThreadTimeStart) / 1000000) 571 + " ms."); 572 } 573 574 showPostCaptureAlert(); 575 cancelAutomaticPreviewRestart(); 576 } 577 578 mCapturing = false; 579 if (mPausing) { 580 closeCamera(); 581 } 582 } 583 584 /** 585 * Initiate the capture of an image. 586 */ 587 public void initiate(boolean captureOnly) { 588 if (mCameraDevice == null) { 589 return; 590 } 591 592 mCancel = false; 593 mCapturing = true; 594 595 capture(captureOnly); 596 } 597 598 public Uri getLastCaptureUri() { 599 return mLastContentUri; 600 } 601 602 public Bitmap getLastBitmap() { 603 return mCaptureOnlyBitmap; 604 } 605 606 private void capture(boolean captureOnly) { 607 mPreviewing = false; 608 mCaptureOnlyBitmap = null; 609 610 final int latchedOrientation = 611 ImageManager.roundOrientation(mLastOrientation + 90); 612 mParameters.set(PARM_ROTATION, latchedOrientation); 613 614 Location loc = mRecordLocation ? getCurrentLocation() : null; 615 616 mParameters.remove(PARM_GPS_LATITUDE); 617 mParameters.remove(PARM_GPS_LONGITUDE); 618 mParameters.remove(PARM_GPS_ALTITUDE); 619 mParameters.remove(PARM_GPS_TIMESTAMP); 620 621 if (loc != null) { 622 double lat = loc.getLatitude(); 623 double lon = loc.getLongitude(); 624 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 625 626 if (hasLatLon) { 627 String latString = String.valueOf(lat); 628 String lonString = String.valueOf(lon); 629 mParameters.set(PARM_GPS_LATITUDE, latString); 630 mParameters.set(PARM_GPS_LONGITUDE, lonString); 631 if (loc.hasAltitude()) { 632 mParameters.set(PARM_GPS_ALTITUDE, 633 String.valueOf(loc.getAltitude())); 634 } else { 635 // for NETWORK_PROVIDER location provider, we may have 636 // no altitude information, but the driver needs it, so 637 // we fake one. 638 mParameters.set(PARM_GPS_ALTITUDE, "0"); 639 } 640 if (loc.getTime() != 0) { 641 // Location.getTime() is UTC in milliseconds. 642 // gps-timestamp is UTC in seconds. 643 long utcTimeSeconds = loc.getTime() / 1000; 644 mParameters.set(PARM_GPS_TIMESTAMP, 645 String.valueOf(utcTimeSeconds)); 646 } 647 } else { 648 loc = null; 649 } 650 } 651 652 mCameraDevice.setParameters(mParameters); 653 654 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 655 new JpegPictureCallback(loc)); 656 } 657 658 public void onSnap() { 659 if (mPausing) { 660 return; 661 } 662 mCaptureStartTime = System.currentTimeMillis(); 663 664 // If we are already in the middle of taking a snapshot then we 665 // should just save 666 // the image after we have returned from the camera service. 667 if (mStatus == SNAPSHOT_IN_PROGRESS 668 || mStatus == SNAPSHOT_COMPLETED) { 669 mKeepAndRestartPreview = true; 670 mHandler.sendEmptyMessage(RESTART_PREVIEW); 671 return; 672 } 673 674 // Don't check the filesystem here, we can't afford the latency. 675 // Instead, check the cached value which was calculated when the 676 // preview was restarted. 677 if (mPicturesRemaining < 1) { 678 updateStorageHint(mPicturesRemaining); 679 return; 680 } 681 682 mStatus = SNAPSHOT_IN_PROGRESS; 683 684 mKeepAndRestartPreview = true; 685 686 boolean getContentAction = mIsImageCaptureIntent; 687 if (getContentAction) { 688 mImageCapture.initiate(true); 689 } else { 690 mImageCapture.initiate(false); 691 } 692 } 693 694 private void clearLastBitmap() { 695 if (mCaptureOnlyBitmap != null) { 696 mCaptureOnlyBitmap.recycle(); 697 mCaptureOnlyBitmap = null; 698 } 699 } 700 } 701 702 private void setLastPictureThumb(byte[] data, Uri uri) { 703 BitmapFactory.Options options = new BitmapFactory.Options(); 704 options.inSampleSize = 16; 705 Bitmap lastPictureThumb = 706 BitmapFactory.decodeByteArray(data, 0, data.length, options); 707 mThumbController.setData(uri, lastPictureThumb); 708 } 709 710 private static String createName(long dateTaken) { 711 return DateFormat.format("yyyy-MM-dd kk.mm.ss", dateTaken).toString(); 712 } 713 714 public static Matrix getDisplayMatrix(Bitmap b, ImageView v) { 715 Matrix m = new Matrix(); 716 float bw = b.getWidth(); 717 float bh = b.getHeight(); 718 float vw = v.getWidth(); 719 float vh = v.getHeight(); 720 float scale, x, y; 721 if (bw * vh > vw * bh) { 722 scale = vh / bh; 723 x = (vw - scale * bw) * 0.5F; 724 y = 0; 725 } else { 726 scale = vw / bw; 727 x = 0; 728 y = (vh - scale * bh) * 0.5F; 729 } 730 m.setScale(scale, scale, 0.5F, 0.5F); 731 m.postTranslate(x, y); 732 return m; 733 } 734 735 /** Called with the activity is first created. */ 736 @Override 737 public void onCreate(Bundle icicle) { 738 super.onCreate(icicle); 739 740 /* 741 * To reduce startup time, we open camera device in another thread. 742 * We make sure the camera is opened at the end of onCreate. 743 */ 744 Thread openCameraThread = new Thread(new Runnable() { 745 public void run() { 746 mCameraDevice = android.hardware.Camera.open(); 747 } 748 }); 749 openCameraThread.start(); 750 751 // To reduce startup time, we run some service creation code in another 752 // thread. We make sure the services are loaded at the end of 753 // onCreate(). 754 Thread loadServiceThread = new Thread(new Runnable() { 755 public void run() { 756 mLocationManager = (LocationManager) 757 getSystemService(Context.LOCATION_SERVICE); 758 mOrientationListener = 759 new OrientationEventListener(Camera.this) { 760 @Override 761 public void onOrientationChanged(int orientation) { 762 // We keep the last known orientation. So if the user 763 // first orient the camera then point the camera to 764 // floor/sky, we still have the correct orientation. 765 if (orientation != ORIENTATION_UNKNOWN) { 766 mLastOrientation = orientation; 767 } 768 } 769 }; 770 } 771 }); 772 loadServiceThread.start(); 773 774 mPreferences = PreferenceManager.getDefaultSharedPreferences(this); 775 mContentResolver = getContentResolver(); 776 777 Window win = getWindow(); 778 win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 779 setContentView(R.layout.camera); 780 781 mSurfaceView = (VideoPreview) findViewById(R.id.camera_preview); 782 mGpsIndicator = (ImageView) findViewById(R.id.gps_indicator); 783 784 // don't set mSurfaceHolder here. We have it set ONLY within 785 // surfaceCreated / surfaceDestroyed, other parts of the code 786 // assume that when it is set, the surface is also set. 787 SurfaceHolder holder = mSurfaceView.getHolder(); 788 holder.addCallback(this); 789 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 790 791 mIsImageCaptureIntent = isImageCaptureIntent(); 792 793 if (!mIsImageCaptureIntent) { 794 mLastPictureButton = (ImageView) 795 findViewById(R.id.last_picture_button); 796 mLastPictureButton.setOnClickListener(this); 797 Drawable frame = 798 getResources().getDrawable(R.drawable.frame_thumbnail); 799 mThumbController = new ThumbnailController(mLastPictureButton, 800 frame, mContentResolver); 801 mThumbController.loadData(ImageManager.getLastImageThumbPath()); 802 } 803 804 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 805 mShutterButton.setOnShutterButtonListener(this); 806 807 mFocusIndicator = findViewById(R.id.focus_indicator); 808 mFocusBlinkAnimation = 809 AnimationUtils.loadAnimation(this, R.anim.auto_focus_blink); 810 mFocusBlinkAnimation.setRepeatCount(Animation.INFINITE); 811 mFocusBlinkAnimation.setRepeatMode(Animation.REVERSE); 812 813 mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); 814 815 // We load the post_picture_panel layout only if it is needed. 816 if (mIsImageCaptureIntent) { 817 ViewGroup cameraView = (ViewGroup) findViewById(R.id.camera); 818 getLayoutInflater().inflate(R.layout.post_picture_panel, 819 cameraView); 820 mPostCaptureAlert = findViewById(R.id.post_picture_panel); 821 } 822 823 // Make sure the services are loaded. 824 try { 825 openCameraThread.join(); 826 loadServiceThread.join(); 827 } catch (InterruptedException ex) { 828 // ignore 829 } 830 831 ImageManager.ensureOSXCompatibleFolder(); 832 } 833 834 @Override 835 public void onStart() { 836 super.onStart(); 837 838 Thread t = new Thread(new Runnable() { 839 public void run() { 840 final boolean storageOK = calculatePicturesRemaining() > 0; 841 if (!storageOK) { 842 mHandler.post(new Runnable() { 843 public void run() { 844 updateStorageHint(mPicturesRemaining); 845 } 846 }); 847 } 848 } 849 }); 850 t.start(); 851 } 852 853 public void onClick(View v) { 854 switch (v.getId()) { 855 case R.id.last_picture_button: 856 if (mStatus == IDLE && mFocusState == FOCUS_NOT_STARTED) { 857 viewLastImage(); 858 } 859 break; 860 case R.id.attach: 861 doAttach(); 862 break; 863 case R.id.cancel: 864 doCancel(); 865 } 866 } 867 868 private void doAttach() { 869 if (mPausing) { 870 return; 871 } 872 Bitmap bitmap = mImageCapture.getLastBitmap(); 873 874 String cropValue = null; 875 Uri saveUri = null; 876 877 Bundle myExtras = getIntent().getExtras(); 878 if (myExtras != null) { 879 saveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 880 cropValue = myExtras.getString("crop"); 881 } 882 883 884 if (cropValue == null) { 885 // First handle the no crop case -- just return the value. If the 886 // caller specifies a "save uri" then write the data to it's 887 // stream. Otherwise, pass back a scaled down version of the bitmap 888 // directly in the extras. 889 if (saveUri != null) { 890 OutputStream outputStream = null; 891 try { 892 outputStream = mContentResolver.openOutputStream(saveUri); 893 bitmap.compress(Bitmap.CompressFormat.JPEG, 75, 894 outputStream); 895 outputStream.close(); 896 897 setResult(RESULT_OK); 898 finish(); 899 } catch (IOException ex) { 900 // ignore exception 901 } finally { 902 if (outputStream != null) { 903 try { 904 outputStream.close(); 905 } catch (IOException ex) { 906 // ignore exception 907 } 908 } 909 } 910 } else { 911 float scale = .5F; 912 Matrix m = new Matrix(); 913 m.setScale(scale, scale); 914 915 bitmap = Bitmap.createBitmap(bitmap, 0, 0, 916 bitmap.getWidth(), 917 bitmap.getHeight(), 918 m, true); 919 920 setResult(RESULT_OK, 921 new Intent("inline-data").putExtra("data", bitmap)); 922 finish(); 923 } 924 } else { 925 // Save the image to a temp file and invoke the cropper 926 Uri tempUri = null; 927 FileOutputStream tempStream = null; 928 try { 929 File path = getFileStreamPath(sTempCropFilename); 930 path.delete(); 931 tempStream = openFileOutput(sTempCropFilename, 0); 932 bitmap.compress(Bitmap.CompressFormat.JPEG, 75, tempStream); 933 tempStream.close(); 934 tempUri = Uri.fromFile(path); 935 } catch (FileNotFoundException ex) { 936 setResult(Activity.RESULT_CANCELED); 937 finish(); 938 return; 939 } catch (IOException ex) { 940 setResult(Activity.RESULT_CANCELED); 941 finish(); 942 return; 943 } finally { 944 if (tempStream != null) { 945 try { 946 tempStream.close(); 947 } catch (IOException ex) { 948 // ignore exception 949 } 950 } 951 } 952 953 Bundle newExtras = new Bundle(); 954 if (cropValue.equals("circle")) { 955 newExtras.putString("circleCrop", "true"); 956 } 957 if (saveUri != null) { 958 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, saveUri); 959 } else { 960 newExtras.putBoolean("return-data", true); 961 } 962 963 Intent cropIntent = new Intent(); 964 cropIntent.setClass(Camera.this, CropImage.class); 965 cropIntent.setData(tempUri); 966 cropIntent.putExtras(newExtras); 967 968 startActivityForResult(cropIntent, CROP_MSG); 969 } 970 } 971 972 private void doCancel() { 973 setResult(RESULT_CANCELED, new Intent()); 974 finish(); 975 } 976 977 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 978 if (mPausing) { 979 return; 980 } 981 switch (button.getId()) { 982 case R.id.shutter_button: 983 doFocus(pressed); 984 break; 985 } 986 } 987 988 public void onShutterButtonClick(ShutterButton button) { 989 if (mPausing) { 990 return; 991 } 992 switch (button.getId()) { 993 case R.id.shutter_button: 994 doSnap(); 995 break; 996 } 997 } 998 999 private void updateStorageHint() { 1000 updateStorageHint(MenuHelper.calculatePicturesRemaining()); 1001 } 1002 1003 private OnScreenHint mStorageHint; 1004 1005 private void updateStorageHint(int remaining) { 1006 String noStorageText = null; 1007 1008 if (remaining == MenuHelper.NO_STORAGE_ERROR) { 1009 String state = Environment.getExternalStorageState(); 1010 if (state == Environment.MEDIA_CHECKING) { 1011 noStorageText = getString(R.string.preparing_sd); 1012 } else { 1013 noStorageText = getString(R.string.no_storage); 1014 } 1015 } else if (remaining < 1) { 1016 noStorageText = getString(R.string.not_enough_space); 1017 } 1018 1019 if (noStorageText != null) { 1020 if (mStorageHint == null) { 1021 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1022 } else { 1023 mStorageHint.setText(noStorageText); 1024 } 1025 mStorageHint.show(); 1026 } else if (mStorageHint != null) { 1027 mStorageHint.cancel(); 1028 mStorageHint = null; 1029 } 1030 } 1031 1032 // Reads brightness setting from the preference and store it in 1033 // mCurrentBrightness. 1034 private void readBrightnessPreference() { 1035 String brightness = mPreferences.getString( 1036 CameraSettings.KEY_BRIGHTNESS, 1037 getString(R.string.pref_camera_brightness_default)); 1038 try { 1039 mCurrentBrightness = Integer.parseInt(brightness); 1040 // Limit the brightness to the valid range. 1041 if (mCurrentBrightness > BRIGHTNESS_MAX) { 1042 mCurrentBrightness = BRIGHTNESS_MAX; 1043 } 1044 if (mCurrentBrightness < BRIGHTNESS_MIN) { 1045 mCurrentBrightness = BRIGHTNESS_MIN; 1046 } 1047 } 1048 catch (NumberFormatException ex) { 1049 // Use the default value if it cannot be parsed. 1050 mCurrentBrightness = BRIGHTNESS_DEFAULT; 1051 } 1052 } 1053 1054 @Override 1055 public void onResume() { 1056 super.onResume(); 1057 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 1058 1059 mPausing = false; 1060 mOrientationListener.enable(); 1061 mRecordLocation = mPreferences.getBoolean( 1062 "pref_camera_recordlocation_key", false); 1063 mFocusMode = mPreferences.getString( 1064 CameraSettings.KEY_FOCUS_MODE, 1065 getString(R.string.pref_camera_focusmode_default)); 1066 mGpsIndicator.setVisibility(View.INVISIBLE); 1067 mJpegPictureCallbackTime = 0; 1068 1069 readBrightnessPreference(); 1070 1071 // install an intent filter to receive SD card related events. 1072 IntentFilter intentFilter = 1073 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1074 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1075 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED); 1076 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1077 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1078 intentFilter.addDataScheme("file"); 1079 registerReceiver(mReceiver, intentFilter); 1080 mDidRegister = true; 1081 1082 mImageCapture = new ImageCapture(); 1083 1084 restartPreview(); 1085 1086 if (mRecordLocation) startReceivingLocationUpdates(); 1087 1088 updateFocusIndicator(); 1089 1090 try { 1091 mFocusToneGenerator = new ToneGenerator( 1092 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1093 } catch (RuntimeException e) { 1094 Log.w(TAG, "Exception caught while creating local tone generator: " 1095 + e); 1096 mFocusToneGenerator = null; 1097 } 1098 } 1099 1100 private static ImageManager.DataLocation dataLocation() { 1101 return ImageManager.DataLocation.EXTERNAL; 1102 } 1103 1104 @Override 1105 public void onStop() { 1106 keep(); 1107 stopPreview(); 1108 closeCamera(); 1109 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 1110 super.onStop(); 1111 } 1112 1113 @Override 1114 protected void onPause() { 1115 keep(); 1116 1117 mPausing = true; 1118 mOrientationListener.disable(); 1119 1120 stopPreview(); 1121 1122 if (!mImageCapture.mCapturing) { 1123 closeCamera(); 1124 } 1125 if (mDidRegister) { 1126 unregisterReceiver(mReceiver); 1127 mDidRegister = false; 1128 } 1129 stopReceivingLocationUpdates(); 1130 1131 if (mFocusToneGenerator != null) { 1132 mFocusToneGenerator.release(); 1133 mFocusToneGenerator = null; 1134 } 1135 1136 if (!mIsImageCaptureIntent) { 1137 mThumbController.storeData(ImageManager.getLastImageThumbPath()); 1138 } 1139 1140 if (mStorageHint != null) { 1141 mStorageHint.cancel(); 1142 mStorageHint = null; 1143 } 1144 1145 // If we are in an image capture intent and has taken 1146 // a picture, we just clear it in onPause. 1147 mImageCapture.clearLastBitmap(); 1148 mImageCapture = null; 1149 hidePostCaptureAlert(); 1150 1151 super.onPause(); 1152 } 1153 1154 @Override 1155 protected void onActivityResult( 1156 int requestCode, int resultCode, Intent data) { 1157 switch (requestCode) { 1158 case CROP_MSG: { 1159 Intent intent = new Intent(); 1160 if (data != null) { 1161 Bundle extras = data.getExtras(); 1162 if (extras != null) { 1163 intent.putExtras(extras); 1164 } 1165 } 1166 setResult(resultCode, intent); 1167 finish(); 1168 1169 File path = getFileStreamPath(sTempCropFilename); 1170 path.delete(); 1171 1172 break; 1173 } 1174 } 1175 } 1176 1177 private void autoFocus() { 1178 if (mFocusState != FOCUSING && mFocusState != FOCUSING_SNAP_ON_FINISH) { 1179 if (mCameraDevice != null) { 1180 mFocusStartTime = System.currentTimeMillis(); 1181 mFocusState = FOCUSING; 1182 mCameraDevice.autoFocus(mAutoFocusCallback); 1183 } 1184 } 1185 updateFocusIndicator(); 1186 } 1187 1188 private void clearFocusState() { 1189 mFocusState = FOCUS_NOT_STARTED; 1190 updateFocusIndicator(); 1191 } 1192 1193 private void updateFocusIndicator() { 1194 mHandler.post(new Runnable() { 1195 public void run() { 1196 if (mFocusState == FOCUSING || mFocusState == FOCUSING_SNAP_ON_FINISH) { 1197 mFocusRectangle.showStart(); 1198 } else if (mFocusState == FOCUS_SUCCESS) { 1199 mFocusIndicator.setVisibility(View.VISIBLE); 1200 mFocusIndicator.clearAnimation(); 1201 mFocusRectangle.showSuccess(); 1202 } else if (mFocusState == FOCUS_FAIL) { 1203 mFocusIndicator.setVisibility(View.VISIBLE); 1204 mFocusIndicator.startAnimation(mFocusBlinkAnimation); 1205 mFocusRectangle.showFail(); 1206 } else { 1207 mFocusIndicator.setVisibility(View.GONE); 1208 mFocusIndicator.clearAnimation(); 1209 mFocusRectangle.clear(); 1210 } 1211 } 1212 }); 1213 } 1214 1215 1216 @Override 1217 public boolean onKeyDown(int keyCode, KeyEvent event) { 1218 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 1219 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1220 1221 switch (keyCode) { 1222 // TODO: change the following two handlers to OSD control. 1223 case KeyEvent.KEYCODE_DPAD_LEFT: 1224 if (mCurrentBrightness > BRIGHTNESS_MIN) { 1225 mParameters.set(PARM_BRIGHTNESS, --mCurrentBrightness); 1226 mCameraDevice.setParameters(mParameters); 1227 Log.v(TAG, "--brightness=" + mCurrentBrightness); 1228 } 1229 break; 1230 1231 case KeyEvent.KEYCODE_DPAD_RIGHT: 1232 if (mCurrentBrightness < BRIGHTNESS_MAX) { 1233 mParameters.set(PARM_BRIGHTNESS, ++mCurrentBrightness); 1234 mCameraDevice.setParameters(mParameters); 1235 Log.v(TAG, "++brightness=" + mCurrentBrightness); 1236 } 1237 break; 1238 1239 case KeyEvent.KEYCODE_BACK: 1240 if (mStatus == SNAPSHOT_IN_PROGRESS) { 1241 // ignore backs while we're taking a picture 1242 return true; 1243 } 1244 break; 1245 case KeyEvent.KEYCODE_FOCUS: 1246 if (event.getRepeatCount() == 0) { 1247 doFocus(true); 1248 } 1249 return true; 1250 case KeyEvent.KEYCODE_CAMERA: 1251 if (event.getRepeatCount() == 0) { 1252 doSnap(); 1253 } 1254 return true; 1255 case KeyEvent.KEYCODE_DPAD_CENTER: 1256 // If we get a dpad center event without any focused view, move 1257 // the focus to the shutter button and press it. 1258 if (event.getRepeatCount() == 0) { 1259 // Start auto-focus immediately to reduce shutter lag. After 1260 // the shutter button gets the focus, doFocus() will be 1261 // called again but it is fine. 1262 doFocus(true); 1263 if (mShutterButton.isInTouchMode()) { 1264 mShutterButton.requestFocusFromTouch(); 1265 } else { 1266 mShutterButton.requestFocus(); 1267 } 1268 mShutterButton.setPressed(true); 1269 } 1270 return true; 1271 } 1272 1273 return super.onKeyDown(keyCode, event); 1274 } 1275 1276 @Override 1277 public boolean onKeyUp(int keyCode, KeyEvent event) { 1278 switch (keyCode) { 1279 case KeyEvent.KEYCODE_FOCUS: 1280 doFocus(false); 1281 return true; 1282 } 1283 return super.onKeyUp(keyCode, event); 1284 } 1285 1286 private void doSnap() { 1287 // If the user has half-pressed the shutter and focus is completed, we 1288 // can take the photo right away. If the focus mode is infinity, we can 1289 // also take the photo. 1290 if (mFocusMode.equals(getString( 1291 R.string.pref_camera_focusmode_value_infinity)) 1292 || (mFocusState == FOCUS_SUCCESS || mFocusState == FOCUS_FAIL) 1293 || !mPreviewing) { 1294 // doesn't get set until the idler runs 1295 if (mCaptureObject != null) { 1296 mCaptureObject.onSnap(); 1297 } 1298 clearFocusState(); 1299 } else if (mFocusState == FOCUSING) { 1300 // Half pressing the shutter (i.e. the focus button event) will 1301 // already have requested AF for us, so just request capture on 1302 // focus here. 1303 mFocusState = FOCUSING_SNAP_ON_FINISH; 1304 } else if (mFocusState == FOCUS_NOT_STARTED) { 1305 // Focus key down event is dropped for some reasons. Just ignore. 1306 } 1307 } 1308 1309 private void doFocus(boolean pressed) { 1310 // Do the focus if the mode is auto. No focus needed in infinity mode. 1311 if (mFocusMode.equals(getString( 1312 R.string.pref_camera_focusmode_value_auto))) { 1313 if (pressed) { // Focus key down. 1314 if (mPreviewing) { 1315 autoFocus(); 1316 } else if (mCaptureObject != null) { 1317 // Save and restart preview 1318 mCaptureObject.onSnap(); 1319 } 1320 } else { // Focus key up. 1321 if (mFocusState != FOCUSING_SNAP_ON_FINISH) { 1322 // User releases half-pressed focus key. 1323 clearFocusState(); 1324 } 1325 } 1326 } 1327 } 1328 1329 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1330 mSurfaceView.setVisibility(View.VISIBLE); 1331 // if we're creating the surface, start the preview as well. 1332 boolean preview = holder.isCreating(); 1333 setViewFinder(w, h, preview); 1334 mCaptureObject = mImageCapture; 1335 } 1336 1337 public void surfaceCreated(SurfaceHolder holder) { 1338 mSurfaceHolder = holder; 1339 } 1340 1341 public void surfaceDestroyed(SurfaceHolder holder) { 1342 stopPreview(); 1343 mSurfaceHolder = null; 1344 } 1345 1346 private void closeCamera() { 1347 if (mCameraDevice != null) { 1348 mCameraDevice.release(); 1349 mCameraDevice = null; 1350 mPreviewing = false; 1351 } 1352 } 1353 1354 private boolean ensureCameraDevice() { 1355 if (mCameraDevice == null) { 1356 mCameraDevice = android.hardware.Camera.open(); 1357 } 1358 return mCameraDevice != null; 1359 } 1360 1361 private void updateLastImage() { 1362 IImageList list = ImageManager.allImages( 1363 mContentResolver, 1364 dataLocation(), 1365 ImageManager.INCLUDE_IMAGES, 1366 ImageManager.SORT_ASCENDING, 1367 ImageManager.CAMERA_IMAGE_BUCKET_ID); 1368 int count = list.getCount(); 1369 if (count > 0) { 1370 IImage image = list.getImageAt(count - 1); 1371 Uri uri = image.fullSizeImageUri(); 1372 mThumbController.setData(uri, image.miniThumbBitmap()); 1373 } else { 1374 mThumbController.setData(null, null); 1375 } 1376 list.deactivate(); 1377 } 1378 1379 private void restartPreview() { 1380 VideoPreview surfaceView = mSurfaceView; 1381 1382 // make sure the surfaceview fills the whole screen when previewing 1383 surfaceView.setAspectRatio(VideoPreview.DONT_CARE); 1384 setViewFinder(mOriginalViewFinderWidth, mOriginalViewFinderHeight, 1385 true); 1386 mStatus = IDLE; 1387 1388 // Calculate this in advance of each shot so we don't add to shutter 1389 // latency. It's true that someone else could write to the SD card in 1390 // the mean time and fill it, but that could have happened between the 1391 // shutter press and saving the JPEG too. 1392 calculatePicturesRemaining(); 1393 1394 if (!mIsImageCaptureIntent && !mThumbController.isUriValid()) { 1395 updateLastImage(); 1396 } 1397 1398 if (!mIsImageCaptureIntent) { 1399 mThumbController.updateDisplayIfNeeded(); 1400 } 1401 } 1402 1403 private void setViewFinder(int w, int h, boolean startPreview) { 1404 if (mPausing) return; 1405 1406 if (mPreviewing && w == mViewFinderWidth && h == mViewFinderHeight) { 1407 return; 1408 } 1409 1410 if (!ensureCameraDevice() ) return; 1411 1412 if (mSurfaceHolder == null) return; 1413 1414 if (isFinishing()) return; 1415 1416 if (mPausing) return; 1417 1418 // remember view finder size 1419 mViewFinderWidth = w; 1420 mViewFinderHeight = h; 1421 if (mOriginalViewFinderHeight == 0) { 1422 mOriginalViewFinderWidth = w; 1423 mOriginalViewFinderHeight = h; 1424 } 1425 1426 if (startPreview == false) return; 1427 1428 // start the preview if we're asked to... 1429 // 1430 // we want to start the preview and we're previewing already, 1431 // stop the preview first (this will blank the screen). 1432 if (mPreviewing) stopPreview(); 1433 1434 // this blanks the screen if the surface changed, no-op otherwise 1435 try { 1436 mCameraDevice.setPreviewDisplay(mSurfaceHolder); 1437 } catch (IOException exception) { 1438 mCameraDevice.release(); 1439 mCameraDevice = null; 1440 // TODO: add more exception handling logic here 1441 return; 1442 } 1443 1444 setCameraParameter(); 1445 1446 final long wallTimeStart = SystemClock.elapsedRealtime(); 1447 final long threadTimeStart = Debug.threadCpuTimeNanos(); 1448 1449 final Object watchDogSync = new Object(); 1450 1451 Thread watchDog = new Thread(new Runnable() { 1452 public void run() { 1453 int nextWarning = 1; 1454 while (true) { 1455 try { 1456 synchronized (watchDogSync) { 1457 watchDogSync.wait(1000); 1458 } 1459 } catch (InterruptedException ex) { 1460 // 1461 } 1462 if (mPreviewing) break; 1463 1464 int delay = (int) (SystemClock.elapsedRealtime() 1465 - wallTimeStart) / 1000; 1466 if (delay >= nextWarning) { 1467 Log.e(TAG, "preview hasn't started yet in " 1468 + delay + " seconds"); 1469 if (nextWarning < 60) { 1470 nextWarning <<= 1; 1471 if (nextWarning == 16) { 1472 nextWarning = 15; 1473 } 1474 } else { 1475 nextWarning += 60; 1476 } 1477 } 1478 } 1479 } 1480 }); 1481 1482 watchDog.start(); 1483 1484 // Set one shot preview callback for latency measurement. 1485 mCameraDevice.setOneShotPreviewCallback(mOneShotPreviewCallback); 1486 1487 try { 1488 mCameraDevice.startPreview(); 1489 } catch (Throwable e) { 1490 // TODO: change Throwable to IOException once 1491 // android.hardware.Camera.startPreview properly declares 1492 // that it throws IOException. 1493 } 1494 mPreviewing = true; 1495 1496 synchronized (watchDogSync) { 1497 watchDogSync.notify(); 1498 } 1499 1500 long threadTimeEnd = Debug.threadCpuTimeNanos(); 1501 long wallTimeEnd = SystemClock.elapsedRealtime(); 1502 if ((wallTimeEnd - wallTimeStart) > 3000) { 1503 Log.w(TAG, "startPreview() to " + (wallTimeEnd - wallTimeStart) 1504 + " ms. Thread time was" 1505 + (threadTimeEnd - threadTimeStart) / 1000000 + " ms."); 1506 } 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 mCameraDevice.setParameters(mParameters); 1540 } 1541 1542 private void stopPreview() { 1543 if (mCameraDevice != null && mPreviewing) { 1544 mCameraDevice.stopPreview(); 1545 } 1546 mPreviewing = false; 1547 // If auto focus was in progress, it would have been canceled. 1548 clearFocusState(); 1549 } 1550 1551 void gotoGallery() { 1552 MenuHelper.gotoCameraImageGallery(this); 1553 } 1554 1555 private void viewLastImage() { 1556 if (mThumbController.isUriValid()) { 1557 Uri targetUri = mThumbController.getUri(); 1558 targetUri = targetUri.buildUpon().appendQueryParameter( 1559 "bucketId", ImageManager.CAMERA_IMAGE_BUCKET_ID).build(); 1560 Intent intent = new Intent(Intent.ACTION_VIEW, targetUri); 1561 intent.putExtra(MediaStore.EXTRA_SCREEN_ORIENTATION, 1562 ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); 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 1567 try { 1568 startActivity(intent); 1569 } catch (ActivityNotFoundException ex) { 1570 // ignore. 1571 } 1572 } else { 1573 Log.e(TAG, "Can't view last image."); 1574 } 1575 } 1576 1577 void keep() { 1578 if (mCaptureObject != null) { 1579 mCaptureObject.dismissFreezeFrame(); 1580 } 1581 } 1582 1583 private IImage getImageForURI(Uri uri) { 1584 IImageList list = ImageManager.allImages( 1585 mContentResolver, 1586 dataLocation(), 1587 ImageManager.INCLUDE_IMAGES, 1588 ImageManager.SORT_ASCENDING); 1589 IImage image = list.getImageForUri(uri); 1590 list.deactivate(); 1591 return image; 1592 } 1593 1594 1595 private void startReceivingLocationUpdates() { 1596 if (mLocationManager != null) { 1597 try { 1598 mLocationManager.requestLocationUpdates( 1599 LocationManager.NETWORK_PROVIDER, 1600 1000, 1601 0F, 1602 mLocationListeners[1]); 1603 } catch (java.lang.SecurityException ex) { 1604 // ok 1605 } catch (IllegalArgumentException ex) { 1606 if (Config.LOGD) { 1607 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1608 } 1609 } 1610 try { 1611 mLocationManager.requestLocationUpdates( 1612 LocationManager.GPS_PROVIDER, 1613 1000, 1614 0F, 1615 mLocationListeners[0]); 1616 } catch (java.lang.SecurityException ex) { 1617 // ok 1618 } catch (IllegalArgumentException ex) { 1619 if (Config.LOGD) { 1620 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1621 } 1622 } 1623 } 1624 } 1625 1626 private void stopReceivingLocationUpdates() { 1627 if (mLocationManager != null) { 1628 for (int i = 0; i < mLocationListeners.length; i++) { 1629 try { 1630 mLocationManager.removeUpdates(mLocationListeners[i]); 1631 } catch (Exception ex) { 1632 // ok 1633 } 1634 } 1635 } 1636 } 1637 1638 private Location getCurrentLocation() { 1639 // go in best to worst order 1640 for (int i = 0; i < mLocationListeners.length; i++) { 1641 Location l = mLocationListeners[i].current(); 1642 if (l != null) return l; 1643 } 1644 return null; 1645 } 1646 1647 @Override 1648 public void onOptionsMenuClosed(Menu menu) { 1649 super.onOptionsMenuClosed(menu); 1650 if (mImageSavingItem) { 1651 // save the image if we presented the "advanced" menu 1652 // which happens if "menu" is pressed while in 1653 // SNAPSHOT_IN_PROGRESS or SNAPSHOT_COMPLETED modes 1654 keep(); 1655 mHandler.sendEmptyMessage(RESTART_PREVIEW); 1656 } 1657 } 1658 1659 @Override 1660 public boolean onMenuOpened(int featureId, Menu menu) { 1661 if (featureId == Window.FEATURE_OPTIONS_PANEL) { 1662 if (mStatus == SNAPSHOT_IN_PROGRESS) { 1663 cancelAutomaticPreviewRestart(); 1664 } 1665 } 1666 return super.onMenuOpened(featureId, menu); 1667 } 1668 1669 @Override 1670 public boolean onPrepareOptionsMenu(Menu menu) { 1671 super.onPrepareOptionsMenu(menu); 1672 1673 for (int i = 1; i <= MenuHelper.MENU_ITEM_MAX; i++) { 1674 if (i != MenuHelper.GENERIC_ITEM) { 1675 menu.setGroupVisible(i, false); 1676 } 1677 } 1678 1679 if (mStatus == SNAPSHOT_IN_PROGRESS || mStatus == SNAPSHOT_COMPLETED) { 1680 menu.setGroupVisible(MenuHelper.IMAGE_SAVING_ITEM, true); 1681 mImageSavingItem = true; 1682 } else { 1683 menu.setGroupVisible(MenuHelper.IMAGE_MODE_ITEM, true); 1684 mImageSavingItem = false; 1685 } 1686 1687 return true; 1688 } 1689 1690 private void cancelAutomaticPreviewRestart() { 1691 mKeepAndRestartPreview = false; 1692 mHandler.removeMessages(RESTART_PREVIEW); 1693 } 1694 1695 private boolean isImageCaptureIntent() { 1696 String action = getIntent().getAction(); 1697 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 1698 } 1699 1700 private void showPostCaptureAlert() { 1701 if (mIsImageCaptureIntent) { 1702 mPostCaptureAlert.setVisibility(View.VISIBLE); 1703 int[] pickIds = {R.id.attach, R.id.cancel}; 1704 for (int id : pickIds) { 1705 View view = mPostCaptureAlert.findViewById(id); 1706 view.setOnClickListener(this); 1707 Animation animation = new AlphaAnimation(0F, 1F); 1708 animation.setDuration(500); 1709 view.setAnimation(animation); 1710 } 1711 } 1712 } 1713 1714 private void hidePostCaptureAlert() { 1715 if (mIsImageCaptureIntent) { 1716 mPostCaptureAlert.setVisibility(View.INVISIBLE); 1717 } 1718 } 1719 1720 @Override 1721 public boolean onCreateOptionsMenu(Menu menu) { 1722 super.onCreateOptionsMenu(menu); 1723 1724 if (mIsImageCaptureIntent) { 1725 // No options menu for attach mode. 1726 return false; 1727 } else { 1728 addBaseMenuItems(menu); 1729 } 1730 return true; 1731 } 1732 1733 private int calculatePicturesRemaining() { 1734 mPicturesRemaining = MenuHelper.calculatePicturesRemaining(); 1735 return mPicturesRemaining; 1736 } 1737 1738 private void addBaseMenuItems(Menu menu) { 1739 MenuHelper.addSwitchModeMenuItem(menu, this, true); 1740 { 1741 MenuItem gallery = menu.add( 1742 MenuHelper.IMAGE_MODE_ITEM, MENU_GALLERY_PHOTOS, 0, 1743 R.string.camera_gallery_photos_text) 1744 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1745 public boolean onMenuItemClick(MenuItem item) { 1746 gotoGallery(); 1747 return true; 1748 } 1749 }); 1750 gallery.setIcon(android.R.drawable.ic_menu_gallery); 1751 mGalleryItems.add(gallery); 1752 } 1753 { 1754 MenuItem gallery = menu.add( 1755 MenuHelper.VIDEO_MODE_ITEM, MENU_GALLERY_VIDEOS, 0, 1756 R.string.camera_gallery_photos_text) 1757 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1758 public boolean onMenuItemClick(MenuItem item) { 1759 gotoGallery(); 1760 return true; 1761 } 1762 }); 1763 gallery.setIcon(android.R.drawable.ic_menu_gallery); 1764 mGalleryItems.add(gallery); 1765 } 1766 1767 MenuItem item = menu.add(MenuHelper.GENERIC_ITEM, MENU_SETTINGS, 1768 0, R.string.settings) 1769 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1770 public boolean onMenuItemClick(MenuItem item) { 1771 // Do not go to camera settings during capture. 1772 if (mStatus == IDLE && mFocusState == FOCUS_NOT_STARTED) { 1773 Intent intent = new Intent(); 1774 intent.setClass(Camera.this, CameraSettings.class); 1775 startActivity(intent); 1776 } 1777 return true; 1778 } 1779 }); 1780 item.setIcon(android.R.drawable.ic_menu_preferences); 1781 } 1782} 1783 1784class FocusRectangle extends View { 1785 private static final String TAG = "FocusRectangle"; 1786 1787 public FocusRectangle(Context context, AttributeSet attrs) { 1788 super(context, attrs); 1789 } 1790 1791 private void setDrawable(int resid) { 1792 BitmapDrawable d = (BitmapDrawable) getResources().getDrawable(resid); 1793 // We do this because we don't want the bitmap to be scaled. 1794 d.setGravity(Gravity.CENTER); 1795 setBackgroundDrawable(d); 1796 } 1797 1798 public void showStart() { 1799 setDrawable(R.drawable.frame_autofocus_rectangle); 1800 } 1801 1802 public void showSuccess() { 1803 setDrawable(R.drawable.frame_focused_rectangle); 1804 } 1805 1806 public void showFail() { 1807 setDrawable(R.drawable.frame_nofocus_rectangle); 1808 } 1809 1810 public void clear() { 1811 setBackgroundDrawable(null); 1812 } 1813} 1814