Camera.java revision 05309120f233e2f3a2d6319d0efd996254e86c16
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.camera; 18 19import com.android.camera.gallery.Cancelable; 20import com.android.camera.gallery.IImage; 21import com.android.camera.gallery.IImageList; 22 23import android.app.Activity; 24import android.content.ActivityNotFoundException; 25import android.content.BroadcastReceiver; 26import android.content.ContentResolver; 27import android.content.Context; 28import android.content.Intent; 29import android.content.IntentFilter; 30import android.content.SharedPreferences; 31import android.graphics.Bitmap; 32import android.graphics.BitmapFactory; 33import android.graphics.Matrix; 34import android.graphics.drawable.BitmapDrawable; 35import android.hardware.Camera.PictureCallback; 36import android.hardware.Camera.Size; 37import android.location.Location; 38import android.location.LocationManager; 39import android.location.LocationProvider; 40import android.media.AudioManager; 41import android.media.ToneGenerator; 42import android.net.Uri; 43import android.os.Bundle; 44import android.os.Debug; 45import android.os.Environment; 46import android.os.Handler; 47import android.os.Message; 48import android.os.SystemClock; 49import android.preference.PreferenceManager; 50import android.provider.MediaStore; 51import android.text.format.DateFormat; 52import android.util.AttributeSet; 53import android.util.Log; 54import android.view.Gravity; 55import android.view.KeyEvent; 56import android.view.Menu; 57import android.view.MenuItem; 58import android.view.MotionEvent; 59import android.view.OrientationEventListener; 60import android.view.SurfaceHolder; 61import android.view.View; 62import android.view.ViewGroup; 63import android.view.Window; 64import android.view.WindowManager; 65import android.view.MenuItem.OnMenuItemClickListener; 66import android.view.animation.AlphaAnimation; 67import android.view.animation.Animation; 68import android.widget.ImageView; 69import android.widget.Toast; 70import android.widget.ZoomButtonsController; 71 72import java.io.File; 73import java.io.FileNotFoundException; 74import java.io.FileOutputStream; 75import java.io.IOException; 76import java.io.OutputStream; 77import java.util.ArrayList; 78import java.util.StringTokenizer; 79 80/** 81 * Activity of the Camera which used to see preview and take pictures. 82 */ 83public class Camera extends Activity implements View.OnClickListener, 84 ShutterButton.OnShutterButtonListener, SurfaceHolder.Callback { 85 86 private static final String TAG = "camera"; 87 88 private static final int CROP_MSG = 1; 89 private static final int FIRST_TIME_INIT = 2; 90 private static final int RESTART_PREVIEW = 3; 91 private static final int CLEAR_SCREEN_DELAY = 4; 92 private static final int STORE_IMAGE_DONE = 5; 93 94 private static final int SCREEN_DELAY = 2 * 60 * 1000; 95 private static final int FOCUS_BEEP_VOLUME = 100; 96 97 public static final int MENU_SWITCH_TO_VIDEO = 0; 98 public static final int MENU_SWITCH_TO_CAMERA = 1; 99 public static final int MENU_FLASH_SETTING = 2; 100 public static final int MENU_FLASH_AUTO = 3; 101 public static final int MENU_FLASH_ON = 4; 102 public static final int MENU_FLASH_OFF = 5; 103 public static final int MENU_SETTINGS = 6; 104 public static final int MENU_GALLERY_PHOTOS = 7; 105 public static final int MENU_GALLERY_VIDEOS = 8; 106 public static final int MENU_SAVE_SELECT_PHOTOS = 30; 107 public static final int MENU_SAVE_NEW_PHOTO = 31; 108 public static final int MENU_SAVE_GALLERY_PHOTO = 34; 109 public static final int MENU_SAVE_GALLERY_VIDEO_PHOTO = 35; 110 public static final int MENU_SAVE_CAMERA_DONE = 36; 111 public static final int MENU_SAVE_CAMERA_VIDEO_DONE = 37; 112 113 private android.hardware.Camera.Parameters mParameters; 114 private int mZoomIndex = 0; // The index of the current zoom value. 115 private String[] mZoomValues; // All possible zoom values. 116 117 // The parameter strings to communicate with camera driver. 118 public static final String PARM_ZOOM = "zoom"; 119 public static final String PARM_WHITE_BALANCE = "whitebalance"; 120 public static final String PARM_EFFECT = "effect"; 121 public static final String PARM_BRIGHTNESS = "exposure-offset"; 122 public static final String PARM_PICTURE_SIZE = "picture-size"; 123 public static final String PARM_JPEG_QUALITY = "jpeg-quality"; 124 public static final String PARM_ISO = "iso"; 125 public static final String PARM_ROTATION = "rotation"; 126 public static final String PARM_GPS_LATITUDE = "gps-latitude"; 127 public static final String PARM_GPS_LONGITUDE = "gps-longitude"; 128 public static final String PARM_GPS_ALTITUDE = "gps-altitude"; 129 public static final String PARM_GPS_TIMESTAMP = "gps-timestamp"; 130 public static final String SUPPORTED_ZOOM = "zoom-values"; 131 public static final String SUPPORTED_WHITE_BALANCE = "whitebalance-values"; 132 public static final String SUPPORTED_EFFECT = "effect-values"; 133 public static final String SUPPORTED_BRIGHTNESS = "exposure-offset-values"; 134 public static final String SUPPORTED_PICTURE_SIZE = "picture-size-values"; 135 public static final String SUPPORTED_ISO = "iso-values"; 136 137 private OrientationEventListener mOrientationListener; 138 private int mLastOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 139 private SharedPreferences mPreferences; 140 141 private static final int IDLE = 1; 142 private static final int SNAPSHOT_IN_PROGRESS = 2; 143 144 private int mStatus = IDLE; 145 private static final String sTempCropFilename = "crop-temp"; 146 147 private android.hardware.Camera mCameraDevice; 148 private VideoPreview mSurfaceView; 149 private SurfaceHolder mSurfaceHolder = null; 150 private ShutterButton mShutterButton; 151 private FocusRectangle mFocusRectangle; 152 private ImageView mGpsIndicator; 153 private ToneGenerator mFocusToneGenerator; 154 private ZoomButtonsController mZoomButtons; 155 156 // mPostCaptureAlert, mLastPictureButton, mThumbController 157 // are non-null only if isImageCaptureIntent() is true. 158 private View mPostCaptureAlert; 159 private ImageView mLastPictureButton; 160 private ThumbnailController mThumbController; 161 162 private int mViewFinderWidth, mViewFinderHeight; 163 164 private ImageCapture mImageCapture = null; 165 166 private boolean mPreviewing; 167 private boolean mPausing; 168 private boolean mFirstTimeInitialized; 169 private boolean mIsImageCaptureIntent; 170 private boolean mRecordLocation; 171 172 private static final int FOCUS_NOT_STARTED = 0; 173 private static final int FOCUSING = 1; 174 private static final int FOCUSING_SNAP_ON_FINISH = 2; 175 private static final int FOCUS_SUCCESS = 3; 176 private static final int FOCUS_FAIL = 4; 177 private int mFocusState = FOCUS_NOT_STARTED; 178 179 private ContentResolver mContentResolver; 180 private boolean mDidRegister = false; 181 182 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 183 184 private LocationManager mLocationManager = null; 185 186 // Use OneShotPreviewCallback to measure the time between 187 // JpegPictureCallback and preview. 188 private final OneShotPreviewCallback mOneShotPreviewCallback = 189 new OneShotPreviewCallback(); 190 private final ShutterCallback mShutterCallback = new ShutterCallback(); 191 private final RawPictureCallback mRawPictureCallback = 192 new RawPictureCallback(); 193 private final AutoFocusCallback mAutoFocusCallback = 194 new AutoFocusCallback(); 195 private long mFocusStartTime; 196 private long mFocusCallbackTime; 197 private long mCaptureStartTime; 198 private long mShutterCallbackTime; 199 private long mRawPictureCallbackTime; 200 private long mJpegPictureCallbackTime; 201 private int mPicturesRemaining; 202 203 //Add the camera latency time 204 public static long mAutoFocusTime; 205 public static long mShutterLag; 206 public static long mShutterAndRawPictureCallbackTime; 207 public static long mJpegPictureCallbackTimeLag; 208 public static long mRawPictureAndJpegPictureCallbackTime; 209 210 // Focus mode. Options are pref_camera_focusmode_entryvalues. 211 private String mFocusMode; 212 213 private Thread mStoreImageThread = null; 214 private final Handler mHandler = new MainHandler(); 215 216 private interface Capturer { 217 Uri getLastCaptureUri(); 218 void onSnap(); 219 } 220 221 /** 222 * This Handler is used to post message back onto the main thread of the 223 * application 224 */ 225 private class MainHandler extends Handler { 226 @Override 227 public void handleMessage(Message msg) { 228 switch (msg.what) { 229 case RESTART_PREVIEW: { 230 restartPreview(); 231 break; 232 } 233 234 case STORE_IMAGE_DONE: { 235 if (!mIsImageCaptureIntent) { 236 setLastPictureThumb((byte[])msg.obj, mImageCapture.getLastCaptureUri()); 237 updateThumbnailButton(); 238 } else { 239 showPostCaptureAlert(); 240 } 241 mStoreImageThread = null; 242 break; 243 } 244 245 case CLEAR_SCREEN_DELAY: { 246 getWindow().clearFlags( 247 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 248 break; 249 } 250 251 case FIRST_TIME_INIT: { 252 initializeFirstTime(); 253 break; 254 } 255 } 256 } 257 } 258 259 // Snapshots can only be taken after this is called. It should be called 260 // once only. We could have done these things in onCreate() but we want to 261 // make preview screen appear as soon as possible. 262 void initializeFirstTime() { 263 if (mFirstTimeInitialized) return; 264 265 // Create orientation listenter. This should be done first because it 266 // takes some time to get first orientation. 267 mOrientationListener = 268 new OrientationEventListener(Camera.this) { 269 @Override 270 public void onOrientationChanged(int orientation) { 271 // We keep the last known orientation. So if the user 272 // first orient the camera then point the camera to 273 // floor/sky, we still have the correct orientation. 274 if (orientation != ORIENTATION_UNKNOWN) { 275 mLastOrientation = orientation; 276 } 277 } 278 }; 279 mOrientationListener.enable(); 280 281 // Initialize location sevice. 282 mLocationManager = (LocationManager) 283 getSystemService(Context.LOCATION_SERVICE); 284 readPreference(); 285 if (mRecordLocation) startReceivingLocationUpdates(); 286 287 // Initialize last picture button. 288 mContentResolver = getContentResolver(); 289 if (!mIsImageCaptureIntent) { 290 findViewById(R.id.video_button).setOnClickListener(this); 291 mLastPictureButton = (ImageView) findViewById(R.id.review_button); 292 mLastPictureButton.setOnClickListener(this); 293 mThumbController = new ThumbnailController( 294 mLastPictureButton, mContentResolver); 295 mThumbController.loadData(ImageManager.getLastImageThumbPath()); 296 // Update last image thumbnail. 297 updateThumbnailButton(); 298 } else { 299 findViewById(R.id.review_button).setVisibility(View.INVISIBLE); 300 findViewById(R.id.video_button).setVisibility(View.INVISIBLE); 301 ViewGroup cameraView = (ViewGroup) findViewById(R.id.camera); 302 getLayoutInflater().inflate( 303 R.layout.post_picture_panel, cameraView); 304 mPostCaptureAlert = findViewById(R.id.post_picture_panel); 305 } 306 307 findViewById(R.id.photo_indicator).setVisibility(View.VISIBLE); 308 // Initialize shutter button. 309 mShutterButton = (ShutterButton) findViewById(R.id.camera_button); 310 mShutterButton.setOnShutterButtonListener(this); 311 mShutterButton.setVisibility(View.VISIBLE); 312 313 mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); 314 updateFocusIndicator(); 315 316 // Initialize GPS indicator. 317 mGpsIndicator = (ImageView) findViewById(R.id.gps_indicator); 318 mGpsIndicator.setImageResource(R.drawable.ic_gps_active_camera); 319 320 ImageManager.ensureOSXCompatibleFolder(); 321 322 calculatePicturesRemaining(); 323 324 installIntentFilter(); 325 326 initializeFocusTone(); 327 328 initializeZoom(); 329 330 mFirstTimeInitialized = true; 331 } 332 333 private void updateThumbnailButton() { 334 if (!mThumbController.isUriValid()) { 335 updateLastImage(); 336 } 337 mThumbController.updateDisplayIfNeeded(); 338 } 339 340 // If the activity is paused and resumed, this method will be called in 341 // onResume. 342 void initializeSecondTime() { 343 // Start orientation listener as soon as possible because it takes 344 // some time to get first orientation. 345 mOrientationListener.enable(); 346 347 // Start location update if needed. 348 readPreference(); 349 if (mRecordLocation) startReceivingLocationUpdates(); 350 351 installIntentFilter(); 352 353 initializeFocusTone(); 354 355 if (!mIsImageCaptureIntent) { 356 updateThumbnailButton(); 357 } 358 } 359 360 private void initializeZoom() { 361 String zoomValuesStr = mParameters.get(SUPPORTED_ZOOM); 362 if (zoomValuesStr == null) return; 363 364 mZoomValues = getZoomValues(zoomValuesStr); 365 if (mZoomValues == null) return; 366 367 mZoomButtons = new ZoomButtonsController(mSurfaceView); 368 mZoomButtons.setAutoDismissed(true); 369 mZoomButtons.setOnZoomListener( 370 new ZoomButtonsController.OnZoomListener() { 371 public void onVisibilityChanged(boolean visible) { 372 if (visible) { 373 updateZoomButtonsEnabled(); 374 } 375 } 376 377 public void onZoom(boolean zoomIn) { 378 if (zoomIn) { 379 zoomIn(); 380 } else { 381 zoomOut(); 382 } 383 updateZoomButtonsEnabled(); 384 } 385 }); 386 } 387 388 private void zoomIn() { 389 if (mZoomIndex < mZoomValues.length - 1) { 390 mZoomIndex++; 391 mParameters.set(PARM_ZOOM, mZoomValues[mZoomIndex]); 392 mCameraDevice.setParameters(mParameters); 393 } 394 } 395 396 private void zoomOut() { 397 if (mZoomIndex > 0) { 398 mZoomIndex--; 399 mParameters.set(PARM_ZOOM, mZoomValues[mZoomIndex]); 400 mCameraDevice.setParameters(mParameters); 401 } 402 } 403 404 private void updateZoomButtonsEnabled() { 405 mZoomButtons.setZoomInEnabled(mZoomIndex < mZoomValues.length - 1); 406 mZoomButtons.setZoomOutEnabled(mZoomIndex > 0); 407 } 408 409 private String[] getZoomValues(String zoomValuesStr) { 410 ArrayList<String> list = new ArrayList<String>(); 411 String[] zoomValues = null; 412 StringTokenizer tokenizer = new StringTokenizer(zoomValuesStr, ","); 413 414 while (tokenizer.hasMoreElements()) { 415 list.add(tokenizer.nextToken()); 416 } 417 if (list.size() > 0) { 418 zoomValues = list.toArray(new String[list.size()]); 419 } 420 return zoomValues; 421 } 422 423 424 LocationListener [] mLocationListeners = new LocationListener[] { 425 new LocationListener(LocationManager.GPS_PROVIDER), 426 new LocationListener(LocationManager.NETWORK_PROVIDER) 427 }; 428 429 430 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 431 @Override 432 public void onReceive(Context context, Intent intent) { 433 String action = intent.getAction(); 434 if (action.equals(Intent.ACTION_MEDIA_MOUNTED)) { 435 // SD card available 436 updateStorageHint(calculatePicturesRemaining()); 437 } else if (action.equals(Intent.ACTION_MEDIA_UNMOUNTED) || 438 action.equals(Intent.ACTION_MEDIA_CHECKING)) { 439 // SD card unavailable 440 mPicturesRemaining = MenuHelper.NO_STORAGE_ERROR; 441 updateStorageHint(mPicturesRemaining); 442 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_STARTED)) { 443 Toast.makeText(Camera.this, 444 getResources().getString(R.string.wait), 5000); 445 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 446 updateStorageHint(); 447 } 448 } 449 }; 450 451 private class LocationListener 452 implements android.location.LocationListener { 453 Location mLastLocation; 454 boolean mValid = false; 455 String mProvider; 456 457 public LocationListener(String provider) { 458 mProvider = provider; 459 mLastLocation = new Location(mProvider); 460 } 461 462 public void onLocationChanged(Location newLocation) { 463 if (newLocation.getLatitude() == 0.0 464 && newLocation.getLongitude() == 0.0) { 465 // Hack to filter out 0.0,0.0 locations 466 return; 467 } 468 // If GPS is available before start camera, we won't get status 469 // update so update GPS indicator when we receive data. 470 if (mRecordLocation 471 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 472 mGpsIndicator.setVisibility(View.VISIBLE); 473 } 474 mLastLocation.set(newLocation); 475 mValid = true; 476 } 477 478 public void onProviderEnabled(String provider) { 479 } 480 481 public void onProviderDisabled(String provider) { 482 mValid = false; 483 } 484 485 public void onStatusChanged( 486 String provider, int status, Bundle extras) { 487 switch(status) { 488 case LocationProvider.OUT_OF_SERVICE: 489 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 490 mValid = false; 491 if (mRecordLocation && 492 LocationManager.GPS_PROVIDER.equals(provider)) { 493 mGpsIndicator.setVisibility(View.INVISIBLE); 494 } 495 break; 496 } 497 } 498 } 499 500 public Location current() { 501 return mValid ? mLastLocation : null; 502 } 503 } 504 505 private final class OneShotPreviewCallback 506 implements android.hardware.Camera.PreviewCallback { 507 public void onPreviewFrame(byte[] data, 508 android.hardware.Camera camera) { 509 long now = System.currentTimeMillis(); 510 if (mJpegPictureCallbackTime != 0) { 511 mJpegPictureCallbackTimeLag = now - mJpegPictureCallbackTime; 512 Log.v(TAG, "mJpegPictureCallbackTimeLag = " 513 + mJpegPictureCallbackTimeLag + "ms"); 514 mJpegPictureCallbackTime = 0; 515 } 516 } 517 } 518 519 private final class ShutterCallback 520 implements android.hardware.Camera.ShutterCallback { 521 public void onShutter() { 522 mShutterCallbackTime = System.currentTimeMillis(); 523 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 524 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 525 clearFocusState(); 526 // We are going to change the size of surface view and show captured 527 // image. Set it to invisible now and set it back to visible in 528 // surfaceChanged() so that users won't see the image is resized on 529 // the screen. 530 mSurfaceView.setVisibility(View.INVISIBLE); 531 // Resize the SurfaceView to the aspect-ratio of the still image 532 // and so that we can see the full image that was taken. 533 Size pictureSize = mParameters.getPictureSize(); 534 mSurfaceView.setAspectRatio(pictureSize.width, pictureSize.height); 535 } 536 } 537 538 private final class RawPictureCallback implements PictureCallback { 539 public void onPictureTaken( 540 byte [] rawData, android.hardware.Camera camera) { 541 mRawPictureCallbackTime = System.currentTimeMillis(); 542 mShutterAndRawPictureCallbackTime = 543 mRawPictureCallbackTime - mShutterCallbackTime; 544 Log.v(TAG, "mShutterAndRawPictureCallbackTime = " 545 + mShutterAndRawPictureCallbackTime + "ms"); 546 } 547 } 548 549 private final class JpegPictureCallback implements PictureCallback { 550 Location mLocation; 551 552 public JpegPictureCallback(Location loc) { 553 mLocation = loc; 554 } 555 556 public void onPictureTaken( 557 final byte [] jpegData, final android.hardware.Camera camera) { 558 if (mPausing) { 559 return; 560 } 561 562 mJpegPictureCallbackTime = System.currentTimeMillis(); 563 mRawPictureAndJpegPictureCallbackTime = 564 mJpegPictureCallbackTime - mRawPictureCallbackTime; 565 Log.v(TAG, "mRawPictureAndJpegPictureCallbackTime = " 566 + mRawPictureAndJpegPictureCallbackTime +"ms"); 567 if (jpegData != null) { 568 mStoreImageThread = new Thread() { 569 public void run() { 570 mImageCapture.storeImage(jpegData, camera, mLocation); 571 } 572 }; 573 mStoreImageThread.start(); 574 } 575 576 if (!mIsImageCaptureIntent) { 577 long delay = 1500 - ( 578 System.currentTimeMillis() - mRawPictureCallbackTime); 579 mHandler.sendEmptyMessageDelayed( 580 RESTART_PREVIEW, Math.max(delay, 0)); 581 } 582 } 583 } 584 585 private final class AutoFocusCallback 586 implements android.hardware.Camera.AutoFocusCallback { 587 public void onAutoFocus( 588 boolean focused, android.hardware.Camera camera) { 589 mFocusCallbackTime = System.currentTimeMillis(); 590 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 591 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 592 if (mFocusState == FOCUSING_SNAP_ON_FINISH) { 593 // Take the picture no matter focus succeeds or fails. No need 594 // to play the AF sound if we're about to play the shutter 595 // sound. 596 if (focused) { 597 mFocusState = FOCUS_SUCCESS; 598 } else { 599 mFocusState = FOCUS_FAIL; 600 } 601 mImageCapture.onSnap(); 602 } else if (mFocusState == FOCUSING) { 603 // User is half-pressing the focus key. Play the focus tone. 604 // Do not take the picture now. 605 ToneGenerator tg = mFocusToneGenerator; 606 if (tg != null) { 607 tg.startTone(ToneGenerator.TONE_PROP_BEEP2); 608 } 609 if (focused) { 610 mFocusState = FOCUS_SUCCESS; 611 } else { 612 mFocusState = FOCUS_FAIL; 613 } 614 } else if (mFocusState == FOCUS_NOT_STARTED) { 615 // User has released the focus key before focus completes. 616 // Do nothing. 617 } 618 updateFocusIndicator(); 619 } 620 } 621 622 private class ImageCapture implements Capturer { 623 624 private boolean mCancel = false; 625 626 private Uri mLastContentUri; 627 private Cancelable<Void> mAddImageCancelable; 628 629 Bitmap mCaptureOnlyBitmap; 630 631 private void storeImage(byte[] data, Location loc) { 632 try { 633 long dateTaken = System.currentTimeMillis(); 634 String name = createName(dateTaken) + ".jpg"; 635 mLastContentUri = ImageManager.addImage( 636 mContentResolver, 637 name, 638 dateTaken, 639 loc, // location for the database goes here 640 0, // the dsp will use the right orientation so 641 // don't "double set it" 642 ImageManager.CAMERA_IMAGE_BUCKET_NAME, 643 name); 644 if (mLastContentUri == null) { 645 // this means we got an error 646 mCancel = true; 647 } 648 if (!mCancel) { 649 mAddImageCancelable = ImageManager.storeImage( 650 mLastContentUri, mContentResolver, 651 0, null, data); 652 mAddImageCancelable.get(); 653 mAddImageCancelable = null; 654 ImageManager.setImageSize(mContentResolver, mLastContentUri, 655 new File(ImageManager.CAMERA_IMAGE_BUCKET_NAME, 656 name).length()); 657 } 658 } catch (Exception ex) { 659 Log.e(TAG, "Exception while compressing image.", ex); 660 } 661 } 662 663 public void storeImage( 664 final byte[] data, android.hardware.Camera camera, Location loc) { 665 Message msg = mHandler.obtainMessage(STORE_IMAGE_DONE); 666 if (!mIsImageCaptureIntent) { 667 storeImage(data, loc); 668 sendBroadcast(new Intent( 669 "com.android.camera.NEW_PICTURE", mLastContentUri)); 670 msg.obj = data; 671 } else { 672 BitmapFactory.Options options = new BitmapFactory.Options(); 673 options.inSampleSize = 4; 674 675 mCaptureOnlyBitmap = BitmapFactory.decodeByteArray( 676 data, 0, data.length, options); 677 } 678 mHandler.sendMessage(msg); 679 } 680 681 /** 682 * Initiate the capture of an image. 683 */ 684 public void initiate() { 685 if (mCameraDevice == null) { 686 return; 687 } 688 689 mCancel = false; 690 691 capture(); 692 } 693 694 public Uri getLastCaptureUri() { 695 return mLastContentUri; 696 } 697 698 public Bitmap getLastBitmap() { 699 return mCaptureOnlyBitmap; 700 } 701 702 private void capture() { 703 mCaptureOnlyBitmap = null; 704 705 int orientation = mLastOrientation; 706 if (orientation != OrientationEventListener.ORIENTATION_UNKNOWN) { 707 orientation += 90; 708 } 709 orientation = ImageManager.roundOrientation(orientation); 710 Log.v(TAG, "mLastOrientation = " + mLastOrientation 711 + ", orientation = " + orientation); 712 713 mParameters.set(PARM_ROTATION, orientation); 714 715 Location loc = mRecordLocation ? getCurrentLocation() : null; 716 717 mParameters.remove(PARM_GPS_LATITUDE); 718 mParameters.remove(PARM_GPS_LONGITUDE); 719 mParameters.remove(PARM_GPS_ALTITUDE); 720 mParameters.remove(PARM_GPS_TIMESTAMP); 721 722 if (loc != null) { 723 double lat = loc.getLatitude(); 724 double lon = loc.getLongitude(); 725 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 726 727 if (hasLatLon) { 728 String latString = String.valueOf(lat); 729 String lonString = String.valueOf(lon); 730 mParameters.set(PARM_GPS_LATITUDE, latString); 731 mParameters.set(PARM_GPS_LONGITUDE, lonString); 732 if (loc.hasAltitude()) { 733 mParameters.set(PARM_GPS_ALTITUDE, 734 String.valueOf(loc.getAltitude())); 735 } else { 736 // for NETWORK_PROVIDER location provider, we may have 737 // no altitude information, but the driver needs it, so 738 // we fake one. 739 mParameters.set(PARM_GPS_ALTITUDE, "0"); 740 } 741 if (loc.getTime() != 0) { 742 // Location.getTime() is UTC in milliseconds. 743 // gps-timestamp is UTC in seconds. 744 long utcTimeSeconds = loc.getTime() / 1000; 745 mParameters.set(PARM_GPS_TIMESTAMP, 746 String.valueOf(utcTimeSeconds)); 747 } 748 } else { 749 loc = null; 750 } 751 } 752 753 mCameraDevice.setParameters(mParameters); 754 755 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 756 new JpegPictureCallback(loc)); 757 mPreviewing = false; 758 } 759 760 public void onSnap() { 761 // If we are already in the middle of taking a snapshot then ignore. 762 if (mPausing || mStatus == SNAPSHOT_IN_PROGRESS) { 763 return; 764 } 765 mCaptureStartTime = System.currentTimeMillis(); 766 767 // Don't check the filesystem here, we can't afford the latency. 768 // Instead, check the cached value which was calculated when the 769 // preview was restarted. 770 if (mPicturesRemaining < 1) { 771 updateStorageHint(mPicturesRemaining); 772 return; 773 } 774 775 mStatus = SNAPSHOT_IN_PROGRESS; 776 777 mImageCapture.initiate(); 778 } 779 780 private void clearLastBitmap() { 781 if (mCaptureOnlyBitmap != null) { 782 mCaptureOnlyBitmap.recycle(); 783 mCaptureOnlyBitmap = null; 784 } 785 } 786 } 787 788 private void setLastPictureThumb(byte[] data, Uri uri) { 789 BitmapFactory.Options options = new BitmapFactory.Options(); 790 options.inSampleSize = 16; 791 Bitmap lastPictureThumb = 792 BitmapFactory.decodeByteArray(data, 0, data.length, options); 793 mThumbController.setData(uri, lastPictureThumb); 794 } 795 796 private static String createName(long dateTaken) { 797 return DateFormat.format("yyyy-MM-dd kk.mm.ss", dateTaken).toString(); 798 } 799 800 public static Matrix getDisplayMatrix(Bitmap b, ImageView v) { 801 Matrix m = new Matrix(); 802 float bw = b.getWidth(); 803 float bh = b.getHeight(); 804 float vw = v.getWidth(); 805 float vh = v.getHeight(); 806 float scale, x, y; 807 if (bw * vh > vw * bh) { 808 scale = vh / bh; 809 x = (vw - scale * bw) * 0.5F; 810 y = 0; 811 } else { 812 scale = vw / bw; 813 x = 0; 814 y = (vh - scale * bh) * 0.5F; 815 } 816 m.setScale(scale, scale, 0.5F, 0.5F); 817 m.postTranslate(x, y); 818 return m; 819 } 820 821 @Override 822 public void onCreate(Bundle icicle) { 823 super.onCreate(icicle); 824 825 /* 826 * To reduce startup time, we open camera device in another thread. 827 * We make sure the camera is opened at the end of onCreate. 828 */ 829 Thread openCameraThread = new Thread(new Runnable() { 830 public void run() { 831 mCameraDevice = CameraHolder.instance().open(); 832 } 833 }); 834 openCameraThread.start(); 835 836 mPreferences = PreferenceManager.getDefaultSharedPreferences(this); 837 838 Window win = getWindow(); 839 win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 840 setContentView(R.layout.camera); 841 842 mSurfaceView = (VideoPreview) findViewById(R.id.camera_preview); 843 844 // don't set mSurfaceHolder here. We have it set ONLY within 845 // surfaceChanged / surfaceDestroyed, other parts of the code 846 // assume that when it is set, the surface is also set. 847 SurfaceHolder holder = mSurfaceView.getHolder(); 848 holder.addCallback(this); 849 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 850 851 mIsImageCaptureIntent = isImageCaptureIntent(); 852 getLayoutInflater().inflate( 853 R.layout.button_bar, (ViewGroup) findViewById(R.id.camera)); 854 855 // Make sure the services are loaded. 856 try { 857 openCameraThread.join(); 858 } catch (InterruptedException ex) { 859 // ignore 860 } 861 } 862 863 @Override 864 public void onStart() { 865 super.onStart(); 866 867 Thread t = new Thread(new Runnable() { 868 public void run() { 869 final boolean storageOK = calculatePicturesRemaining() > 0; 870 if (!storageOK) { 871 mHandler.post(new Runnable() { 872 public void run() { 873 updateStorageHint(mPicturesRemaining); 874 } 875 }); 876 } 877 } 878 }); 879 t.start(); 880 } 881 882 public void onClick(View v) { 883 switch (v.getId()) { 884 case R.id.video_button: 885 if (isCameraIdle()) { 886 MenuHelper.gotoVideoMode(this); 887 } 888 break; 889 case R.id.review_button: 890 if (isCameraIdle()) { 891 // Make sure image storing has completed before viewing 892 // last image. 893 waitForStoreImageThread(); 894 viewLastImage(); 895 } 896 break; 897 case R.id.attach: 898 doAttach(); 899 break; 900 case R.id.cancel: 901 doCancel(); 902 } 903 } 904 905 private void doAttach() { 906 if (mPausing) { 907 return; 908 } 909 Bitmap bitmap = mImageCapture.getLastBitmap(); 910 911 String cropValue = null; 912 Uri saveUri = null; 913 914 Bundle myExtras = getIntent().getExtras(); 915 if (myExtras != null) { 916 saveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 917 cropValue = myExtras.getString("crop"); 918 } 919 920 921 if (cropValue == null) { 922 // First handle the no crop case -- just return the value. If the 923 // caller specifies a "save uri" then write the data to it's 924 // stream. Otherwise, pass back a scaled down version of the bitmap 925 // directly in the extras. 926 if (saveUri != null) { 927 OutputStream outputStream = null; 928 try { 929 outputStream = mContentResolver.openOutputStream(saveUri); 930 bitmap.compress(Bitmap.CompressFormat.JPEG, 75, 931 outputStream); 932 outputStream.close(); 933 934 setResult(RESULT_OK); 935 finish(); 936 } catch (IOException ex) { 937 // ignore exception 938 } finally { 939 if (outputStream != null) { 940 try { 941 outputStream.close(); 942 } catch (IOException ex) { 943 // ignore exception 944 } 945 } 946 } 947 } else { 948 float scale = .5F; 949 Matrix m = new Matrix(); 950 m.setScale(scale, scale); 951 952 bitmap = Bitmap.createBitmap(bitmap, 0, 0, 953 bitmap.getWidth(), 954 bitmap.getHeight(), 955 m, true); 956 957 setResult(RESULT_OK, 958 new Intent("inline-data").putExtra("data", bitmap)); 959 finish(); 960 } 961 } else { 962 // Save the image to a temp file and invoke the cropper 963 Uri tempUri = null; 964 FileOutputStream tempStream = null; 965 try { 966 File path = getFileStreamPath(sTempCropFilename); 967 path.delete(); 968 tempStream = openFileOutput(sTempCropFilename, 0); 969 bitmap.compress(Bitmap.CompressFormat.JPEG, 75, tempStream); 970 tempStream.close(); 971 tempUri = Uri.fromFile(path); 972 } catch (FileNotFoundException ex) { 973 setResult(Activity.RESULT_CANCELED); 974 finish(); 975 return; 976 } catch (IOException ex) { 977 setResult(Activity.RESULT_CANCELED); 978 finish(); 979 return; 980 } finally { 981 if (tempStream != null) { 982 try { 983 tempStream.close(); 984 } catch (IOException ex) { 985 // ignore exception 986 } 987 } 988 } 989 990 Bundle newExtras = new Bundle(); 991 if (cropValue.equals("circle")) { 992 newExtras.putString("circleCrop", "true"); 993 } 994 if (saveUri != null) { 995 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, saveUri); 996 } else { 997 newExtras.putBoolean("return-data", true); 998 } 999 1000 Intent cropIntent = new Intent(); 1001 cropIntent.setClass(Camera.this, CropImage.class); 1002 cropIntent.setData(tempUri); 1003 cropIntent.putExtras(newExtras); 1004 1005 startActivityForResult(cropIntent, CROP_MSG); 1006 } 1007 } 1008 1009 private void doCancel() { 1010 setResult(RESULT_CANCELED, new Intent()); 1011 finish(); 1012 } 1013 1014 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1015 if (mPausing) { 1016 return; 1017 } 1018 switch (button.getId()) { 1019 case R.id.camera_button: 1020 if (mStoreImageThread == null) { 1021 doFocus(pressed); 1022 } else { 1023 Toast.makeText(Camera.this, 1024 getResources().getString(R.string.wait), 1025 Toast.LENGTH_SHORT); 1026 } 1027 break; 1028 } 1029 } 1030 1031 public void onShutterButtonClick(ShutterButton button) { 1032 if (mPausing) { 1033 return; 1034 } 1035 switch (button.getId()) { 1036 case R.id.camera_button: 1037 if (mIsImageCaptureIntent 1038 && mPostCaptureAlert.getVisibility() == View.VISIBLE) { 1039 // User was reviewing the capture image. Hide the action 1040 // items and start the preview now. 1041 hidePostCaptureAlert(); 1042 restartPreview(); 1043 } else if (mStoreImageThread == null) { 1044 // Take a picture. 1045 doSnap(); 1046 } else { 1047 Toast.makeText(Camera.this, 1048 getResources().getString(R.string.wait), 1049 Toast.LENGTH_SHORT); 1050 } 1051 break; 1052 } 1053 } 1054 1055 private void updateStorageHint() { 1056 updateStorageHint(MenuHelper.calculatePicturesRemaining()); 1057 } 1058 1059 private OnScreenHint mStorageHint; 1060 1061 private void updateStorageHint(int remaining) { 1062 String noStorageText = null; 1063 1064 if (remaining == MenuHelper.NO_STORAGE_ERROR) { 1065 String state = Environment.getExternalStorageState(); 1066 if (state == Environment.MEDIA_CHECKING) { 1067 noStorageText = getString(R.string.preparing_sd); 1068 } else { 1069 noStorageText = getString(R.string.no_storage); 1070 } 1071 } else if (remaining < 1) { 1072 noStorageText = getString(R.string.not_enough_space); 1073 } 1074 1075 if (noStorageText != null) { 1076 if (mStorageHint == null) { 1077 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1078 } else { 1079 mStorageHint.setText(noStorageText); 1080 } 1081 mStorageHint.show(); 1082 } else if (mStorageHint != null) { 1083 mStorageHint.cancel(); 1084 mStorageHint = null; 1085 } 1086 } 1087 1088 void installIntentFilter() { 1089 // install an intent filter to receive SD card related events. 1090 IntentFilter intentFilter = 1091 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1092 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1093 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED); 1094 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1095 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1096 intentFilter.addDataScheme("file"); 1097 registerReceiver(mReceiver, intentFilter); 1098 mDidRegister = true; 1099 } 1100 1101 void initializeFocusTone() { 1102 // Initialize focus tone generator. 1103 try { 1104 mFocusToneGenerator = new ToneGenerator( 1105 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1106 } catch (Throwable ex) { 1107 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1108 mFocusToneGenerator = null; 1109 } 1110 } 1111 1112 void readPreference() { 1113 mRecordLocation = mPreferences.getBoolean( 1114 "pref_camera_recordlocation_key", false); 1115 mFocusMode = mPreferences.getString( 1116 CameraSettings.KEY_FOCUS_MODE, 1117 getString(R.string.pref_camera_focusmode_default)); 1118 } 1119 1120 @Override 1121 public void onResume() { 1122 super.onResume(); 1123 1124 mPausing = false; 1125 mJpegPictureCallbackTime = 0; 1126 mImageCapture = new ImageCapture(); 1127 1128 if (mSurfaceHolder != null) { 1129 // If surface holder is created, start the preview now. Otherwise, 1130 // wait until surfaceChanged. 1131 mSurfaceView.setAspectRatio(VideoPreview.DONT_CARE); 1132 startPreview(); 1133 1134 // If first time initialization is not finished, put it in the 1135 // message queue. 1136 if (!mFirstTimeInitialized) { 1137 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1138 } else { 1139 initializeSecondTime(); 1140 } 1141 } 1142 1143 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 1144 } 1145 1146 private static ImageManager.DataLocation dataLocation() { 1147 return ImageManager.DataLocation.EXTERNAL; 1148 } 1149 1150 private void waitForStoreImageThread() { 1151 if (mStoreImageThread != null) { 1152 try { 1153 mStoreImageThread.join(); 1154 } catch (InterruptedException ex) { 1155 // Ignore this exception. 1156 Log.e(TAG, "", ex); 1157 } finally { 1158 mStoreImageThread = null; 1159 } 1160 } 1161 } 1162 1163 @Override 1164 protected void onPause() { 1165 mPausing = true; 1166 stopPreview(); 1167 // Close the camera now because other activities may need to use it. 1168 closeCamera(); 1169 1170 waitForStoreImageThread(); 1171 1172 if (mFirstTimeInitialized) { 1173 mOrientationListener.disable(); 1174 mGpsIndicator.setVisibility(View.INVISIBLE); 1175 if (!mIsImageCaptureIntent) { 1176 mThumbController.storeData( 1177 ImageManager.getLastImageThumbPath()); 1178 } 1179 hidePostCaptureAlert(); 1180 } 1181 1182 if (mDidRegister) { 1183 unregisterReceiver(mReceiver); 1184 mDidRegister = false; 1185 } 1186 stopReceivingLocationUpdates(); 1187 1188 if (mFocusToneGenerator != null) { 1189 mFocusToneGenerator.release(); 1190 mFocusToneGenerator = null; 1191 } 1192 1193 if (mStorageHint != null) { 1194 mStorageHint.cancel(); 1195 mStorageHint = null; 1196 } 1197 1198 // If we are in an image capture intent and has taken 1199 // a picture, we just clear it in onPause. 1200 mImageCapture.clearLastBitmap(); 1201 mImageCapture = null; 1202 1203 // This is necessary to make the ZoomButtonsController unregister 1204 // its configuration change receiver. 1205 if (mZoomButtons != null) { 1206 mZoomButtons.setVisible(false); 1207 } 1208 1209 // Remove the messages in the event queue. 1210 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 1211 mHandler.removeMessages(RESTART_PREVIEW); 1212 mHandler.removeMessages(FIRST_TIME_INIT); 1213 mHandler.removeMessages(STORE_IMAGE_DONE); 1214 1215 super.onPause(); 1216 } 1217 1218 @Override 1219 protected void onActivityResult( 1220 int requestCode, int resultCode, Intent data) { 1221 switch (requestCode) { 1222 case CROP_MSG: { 1223 Intent intent = new Intent(); 1224 if (data != null) { 1225 Bundle extras = data.getExtras(); 1226 if (extras != null) { 1227 intent.putExtras(extras); 1228 } 1229 } 1230 setResult(resultCode, intent); 1231 finish(); 1232 1233 File path = getFileStreamPath(sTempCropFilename); 1234 path.delete(); 1235 1236 break; 1237 } 1238 } 1239 } 1240 1241 private void autoFocus() { 1242 // Initiate autofocus only when preview is started and snapshot is not 1243 // in progress. 1244 if (isCameraIdle() && mPreviewing) { 1245 Log.v(TAG, "Start autofocus."); 1246 mZoomButtons.setVisible(false); 1247 mFocusStartTime = System.currentTimeMillis(); 1248 mFocusState = FOCUSING; 1249 updateFocusIndicator(); 1250 mCameraDevice.autoFocus(mAutoFocusCallback); 1251 } 1252 } 1253 1254 private void clearFocusState() { 1255 mFocusState = FOCUS_NOT_STARTED; 1256 updateFocusIndicator(); 1257 } 1258 1259 private void updateFocusIndicator() { 1260 if (mFocusRectangle == null) return; 1261 1262 if (mFocusState == FOCUSING || mFocusState == FOCUSING_SNAP_ON_FINISH) { 1263 mFocusRectangle.showStart(); 1264 } else if (mFocusState == FOCUS_SUCCESS) { 1265 mFocusRectangle.showSuccess(); 1266 } else if (mFocusState == FOCUS_FAIL) { 1267 mFocusRectangle.showFail(); 1268 } else { 1269 mFocusRectangle.clear(); 1270 } 1271 } 1272 1273 @Override 1274 public boolean onKeyDown(int keyCode, KeyEvent event) { 1275 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 1276 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 1277 1278 switch (keyCode) { 1279 case KeyEvent.KEYCODE_BACK: 1280 if (!isCameraIdle()) { 1281 // ignore backs while we're taking a picture 1282 return true; 1283 } 1284 break; 1285 case KeyEvent.KEYCODE_FOCUS: 1286 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1287 doFocus(true); 1288 } 1289 return true; 1290 case KeyEvent.KEYCODE_CAMERA: 1291 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1292 doSnap(); 1293 } 1294 return true; 1295 case KeyEvent.KEYCODE_DPAD_CENTER: 1296 // If we get a dpad center event without any focused view, move 1297 // the focus to the shutter button and press it. 1298 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1299 // Start auto-focus immediately to reduce shutter lag. After 1300 // the shutter button gets the focus, doFocus() will be 1301 // called again but it is fine. 1302 doFocus(true); 1303 if (mShutterButton.isInTouchMode()) { 1304 mShutterButton.requestFocusFromTouch(); 1305 } else { 1306 mShutterButton.requestFocus(); 1307 } 1308 mShutterButton.setPressed(true); 1309 } 1310 return true; 1311 } 1312 1313 return super.onKeyDown(keyCode, event); 1314 } 1315 1316 @Override 1317 public boolean onKeyUp(int keyCode, KeyEvent event) { 1318 switch (keyCode) { 1319 case KeyEvent.KEYCODE_FOCUS: 1320 if (mFirstTimeInitialized) { 1321 doFocus(false); 1322 } 1323 return true; 1324 } 1325 return super.onKeyUp(keyCode, event); 1326 } 1327 1328 @Override 1329 public boolean onTouchEvent(MotionEvent event) { 1330 switch (event.getAction()) { 1331 case MotionEvent.ACTION_DOWN: 1332 // Show zoom buttons only when preview is started and snapshot 1333 // is not in progress. mZoomButtons may be null if it is not 1334 // initialized. 1335 if (!mPausing && isCameraIdle() && mPreviewing 1336 && mZoomButtons != null) { 1337 mZoomButtons.setVisible(true); 1338 } 1339 return true; 1340 } 1341 return super.onTouchEvent(event); 1342 } 1343 1344 private void doSnap() { 1345 // If the user has half-pressed the shutter and focus is completed, we 1346 // can take the photo right away. If the focus mode is infinity, we can 1347 // also take the photo. 1348 if (mFocusMode.equals(getString( 1349 R.string.pref_camera_focusmode_value_infinity)) 1350 || (mFocusState == FOCUS_SUCCESS || mFocusState == FOCUS_FAIL)) { 1351 mZoomButtons.setVisible(false); 1352 mImageCapture.onSnap(); 1353 } else if (mFocusState == FOCUSING) { 1354 // Half pressing the shutter (i.e. the focus button event) will 1355 // already have requested AF for us, so just request capture on 1356 // focus here. 1357 mFocusState = FOCUSING_SNAP_ON_FINISH; 1358 } else if (mFocusState == FOCUS_NOT_STARTED) { 1359 // Focus key down event is dropped for some reasons. Just ignore. 1360 } 1361 } 1362 1363 private void doFocus(boolean pressed) { 1364 // Do the focus if the mode is auto. No focus needed in infinity mode. 1365 if (mFocusMode.equals(getString( 1366 R.string.pref_camera_focusmode_value_auto))) { 1367 if (pressed) { // Focus key down. 1368 autoFocus(); 1369 } else { // Focus key up. 1370 if (mFocusState != FOCUSING_SNAP_ON_FINISH) { 1371 // User releases half-pressed focus key. 1372 clearFocusState(); 1373 } 1374 } 1375 } 1376 } 1377 1378 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1379 mSurfaceHolder = holder; 1380 mViewFinderWidth = w; 1381 mViewFinderHeight = h; 1382 1383 // Sometimes surfaceChanged is called after onPause. Ignore it. 1384 if (mPausing) return; 1385 1386 mSurfaceView.setVisibility(View.VISIBLE); 1387 1388 // Do not start preview if we changed surface view ratio to show 1389 // captured image after snapshot. 1390 if (mStatus == SNAPSHOT_IN_PROGRESS) return; 1391 1392 // Start the preview. 1393 startPreview(); 1394 1395 // If first time initialization is not finished, send a message to do 1396 // it later. We want to finish surfaceChanged as soon as possible to let 1397 // user see preview first. 1398 if (!mFirstTimeInitialized) { 1399 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1400 } else { 1401 initializeSecondTime(); 1402 } 1403 } 1404 1405 public void surfaceCreated(SurfaceHolder holder) { 1406 } 1407 1408 public void surfaceDestroyed(SurfaceHolder holder) { 1409 stopPreview(); 1410 mSurfaceHolder = null; 1411 } 1412 1413 private void closeCamera() { 1414 if (mCameraDevice != null) { 1415 CameraHolder.instance().release(); 1416 mCameraDevice = null; 1417 mPreviewing = false; 1418 } 1419 } 1420 1421 private boolean ensureCameraDevice() { 1422 if (mCameraDevice == null) { 1423 mCameraDevice = CameraHolder.instance().open(); 1424 } 1425 return mCameraDevice != null; 1426 } 1427 1428 private void updateLastImage() { 1429 IImageList list = ImageManager.allImages( 1430 mContentResolver, 1431 dataLocation(), 1432 ImageManager.INCLUDE_IMAGES, 1433 ImageManager.SORT_ASCENDING, 1434 ImageManager.CAMERA_IMAGE_BUCKET_ID); 1435 int count = list.getCount(); 1436 if (count > 0) { 1437 IImage image = list.getImageAt(count - 1); 1438 Uri uri = image.fullSizeImageUri(); 1439 mThumbController.setData(uri, image.miniThumbBitmap()); 1440 } else { 1441 mThumbController.setData(null, null); 1442 } 1443 list.deactivate(); 1444 } 1445 1446 private void restartPreview() { 1447 // make sure the surfaceview fills the whole screen when previewing 1448 mSurfaceView.setAspectRatio(VideoPreview.DONT_CARE); 1449 startPreview(); 1450 1451 // Calculate this in advance of each shot so we don't add to shutter 1452 // latency. It's true that someone else could write to the SD card in 1453 // the mean time and fill it, but that could have happened between the 1454 // shutter press and saving the JPEG too. 1455 calculatePicturesRemaining(); 1456 } 1457 1458 private void startPreview() { 1459 if (mPausing) return; 1460 1461 if (!ensureCameraDevice()) return; 1462 1463 if (mSurfaceHolder == null) return; 1464 1465 if (isFinishing()) return; 1466 1467 // If we're previewing already, stop the preview first (this will blank 1468 // the screen). 1469 if (mPreviewing) stopPreview(); 1470 1471 // this blanks the screen if the surface changed, no-op otherwise 1472 try { 1473 mCameraDevice.setPreviewDisplay(mSurfaceHolder); 1474 } catch (Throwable ex) { 1475 closeCamera(); 1476 throw new RuntimeException("setPreviewDisplay failed", ex); 1477 } 1478 1479 setCameraParameter(); 1480 1481 final long wallTimeStart = SystemClock.elapsedRealtime(); 1482 final long threadTimeStart = Debug.threadCpuTimeNanos(); 1483 1484 // Set one shot preview callback for latency measurement. 1485 mCameraDevice.setOneShotPreviewCallback(mOneShotPreviewCallback); 1486 1487 try { 1488 mCameraDevice.startPreview(); 1489 } catch (Throwable ex) { 1490 closeCamera(); 1491 throw new RuntimeException("startPreview failed", ex); 1492 } 1493 mPreviewing = true; 1494 mStatus = IDLE; 1495 1496 long threadTimeEnd = Debug.threadCpuTimeNanos(); 1497 long wallTimeEnd = SystemClock.elapsedRealtime(); 1498 if ((wallTimeEnd - wallTimeStart) > 3000) { 1499 Log.w(TAG, "startPreview() to " + (wallTimeEnd - wallTimeStart) 1500 + " ms. Thread time was" 1501 + (threadTimeEnd - threadTimeStart) / 1000000 + " ms."); 1502 } 1503 } 1504 1505 private void stopPreview() { 1506 if (mCameraDevice != null && mPreviewing) { 1507 mCameraDevice.stopPreview(); 1508 } 1509 mPreviewing = false; 1510 // If auto focus was in progress, it would have been canceled. 1511 clearFocusState(); 1512 } 1513 1514 private void setCameraParameter() { 1515 // request the preview size, the hardware may not honor it, 1516 // if we depended on it we would have to query the size again 1517 mParameters = mCameraDevice.getParameters(); 1518 mParameters.setPreviewSize(mViewFinderWidth, mViewFinderHeight); 1519 1520 // Set white balance parameter. 1521 String whiteBalance = mPreferences.getString( 1522 CameraSettings.KEY_WHITE_BALANCE, 1523 getString(R.string.pref_camera_whitebalance_default)); 1524 mParameters.set(PARM_WHITE_BALANCE, whiteBalance); 1525 1526 // Set effect parameter. 1527 String effect = mPreferences.getString( 1528 CameraSettings.KEY_EFFECT, 1529 getString(R.string.pref_camera_effect_default)); 1530 mParameters.set(PARM_EFFECT, effect); 1531 1532 // Set picture size parameter. 1533 String pictureSize = mPreferences.getString( 1534 CameraSettings.KEY_PICTURE_SIZE, 1535 getString(R.string.pref_camera_picturesize_default)); 1536 mParameters.set(PARM_PICTURE_SIZE, pictureSize); 1537 1538 // Set JPEG quality parameter. 1539 String jpegQuality = mPreferences.getString( 1540 CameraSettings.KEY_JPEG_QUALITY, 1541 getString(R.string.pref_camera_jpegquality_default)); 1542 mParameters.set(PARM_JPEG_QUALITY, jpegQuality); 1543 1544 // Set ISO parameter. 1545 String iso = mPreferences.getString( 1546 CameraSettings.KEY_ISO, 1547 getString(R.string.pref_camera_iso_default)); 1548 mParameters.set(PARM_ISO, iso); 1549 1550 // Set zoom. 1551 if (mZoomValues != null) { 1552 mParameters.set(PARM_ZOOM, mZoomValues[mZoomIndex]); 1553 } 1554 1555 mCameraDevice.setParameters(mParameters); 1556 } 1557 1558 void gotoGallery() { 1559 MenuHelper.gotoCameraImageGallery(this); 1560 } 1561 1562 private void viewLastImage() { 1563 if (mThumbController.isUriValid()) { 1564 Uri targetUri = mThumbController.getUri(); 1565 targetUri = targetUri.buildUpon().appendQueryParameter( 1566 "bucketId", ImageManager.CAMERA_IMAGE_BUCKET_ID).build(); 1567 Intent intent = new Intent(Intent.ACTION_VIEW, targetUri); 1568 intent.putExtra(MediaStore.EXTRA_FULL_SCREEN, true); 1569 intent.putExtra(MediaStore.EXTRA_SHOW_ACTION_ICONS, true); 1570 intent.putExtra("com.android.camera.ReviewMode", true); 1571 try { 1572 startActivity(intent); 1573 } catch (ActivityNotFoundException ex) { 1574 Log.e(TAG, "review image fail", ex); 1575 } 1576 } else { 1577 Log.e(TAG, "Can't view last image."); 1578 } 1579 } 1580 1581 private void startReceivingLocationUpdates() { 1582 if (mLocationManager != null) { 1583 try { 1584 mLocationManager.requestLocationUpdates( 1585 LocationManager.NETWORK_PROVIDER, 1586 1000, 1587 0F, 1588 mLocationListeners[1]); 1589 } catch (java.lang.SecurityException ex) { 1590 Log.i(TAG, "fail to request location update, ignore", ex); 1591 } catch (IllegalArgumentException ex) { 1592 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1593 } 1594 try { 1595 mLocationManager.requestLocationUpdates( 1596 LocationManager.GPS_PROVIDER, 1597 1000, 1598 0F, 1599 mLocationListeners[0]); 1600 } catch (java.lang.SecurityException ex) { 1601 Log.i(TAG, "fail to request location update, ignore", ex); 1602 } catch (IllegalArgumentException ex) { 1603 Log.d(TAG, "provider does not exist " + ex.getMessage()); 1604 } 1605 } 1606 } 1607 1608 private void stopReceivingLocationUpdates() { 1609 if (mLocationManager != null) { 1610 for (int i = 0; i < mLocationListeners.length; i++) { 1611 try { 1612 mLocationManager.removeUpdates(mLocationListeners[i]); 1613 } catch (Exception ex) { 1614 Log.i(TAG, "fail to remove location listners, ignore", ex); 1615 } 1616 } 1617 } 1618 } 1619 1620 private Location getCurrentLocation() { 1621 // go in best to worst order 1622 for (int i = 0; i < mLocationListeners.length; i++) { 1623 Location l = mLocationListeners[i].current(); 1624 if (l != null) return l; 1625 } 1626 return null; 1627 } 1628 1629 private boolean isCameraIdle() { 1630 return mStatus == IDLE && mFocusState == FOCUS_NOT_STARTED; 1631 } 1632 1633 private boolean isImageCaptureIntent() { 1634 String action = getIntent().getAction(); 1635 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 1636 } 1637 1638 private void showPostCaptureAlert() { 1639 if (mIsImageCaptureIntent) { 1640 mPostCaptureAlert.setVisibility(View.VISIBLE); 1641 int[] pickIds = {R.id.attach, R.id.cancel}; 1642 for (int id : pickIds) { 1643 View view = mPostCaptureAlert.findViewById(id); 1644 view.setOnClickListener(this); 1645 Animation animation = new AlphaAnimation(0F, 1F); 1646 animation.setDuration(500); 1647 view.setAnimation(animation); 1648 } 1649 } 1650 } 1651 1652 private void hidePostCaptureAlert() { 1653 if (mIsImageCaptureIntent) { 1654 mPostCaptureAlert.setVisibility(View.INVISIBLE); 1655 } 1656 } 1657 1658 private int calculatePicturesRemaining() { 1659 mPicturesRemaining = MenuHelper.calculatePicturesRemaining(); 1660 return mPicturesRemaining; 1661 } 1662 1663 @Override 1664 public boolean onPrepareOptionsMenu(Menu menu) { 1665 super.onPrepareOptionsMenu(menu); 1666 1667 for (int i = 1; i <= MenuHelper.MENU_ITEM_MAX; i++) { 1668 menu.setGroupVisible(i, false); 1669 } 1670 1671 // Only show the menu when camera is idle. 1672 if (isCameraIdle()) { 1673 menu.setGroupVisible(MenuHelper.GENERIC_ITEM, true); 1674 menu.setGroupVisible(MenuHelper.IMAGE_MODE_ITEM, true); 1675 } 1676 1677 return true; 1678 } 1679 1680 @Override 1681 public boolean onCreateOptionsMenu(Menu menu) { 1682 super.onCreateOptionsMenu(menu); 1683 1684 if (mIsImageCaptureIntent) { 1685 // No options menu for attach mode. 1686 return false; 1687 } else { 1688 addBaseMenuItems(menu); 1689 } 1690 return true; 1691 } 1692 1693 private void addBaseMenuItems(Menu menu) { 1694 MenuHelper.addSwitchModeMenuItem(menu, this, true); 1695 { 1696 MenuItem gallery = menu.add( 1697 MenuHelper.IMAGE_MODE_ITEM, MENU_GALLERY_PHOTOS, 0, 1698 R.string.camera_gallery_photos_text) 1699 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1700 public boolean onMenuItemClick(MenuItem item) { 1701 gotoGallery(); 1702 return true; 1703 } 1704 }); 1705 gallery.setIcon(android.R.drawable.ic_menu_gallery); 1706 mGalleryItems.add(gallery); 1707 } 1708 { 1709 MenuItem gallery = menu.add( 1710 MenuHelper.VIDEO_MODE_ITEM, MENU_GALLERY_VIDEOS, 0, 1711 R.string.camera_gallery_photos_text) 1712 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1713 public boolean onMenuItemClick(MenuItem item) { 1714 gotoGallery(); 1715 return true; 1716 } 1717 }); 1718 gallery.setIcon(android.R.drawable.ic_menu_gallery); 1719 mGalleryItems.add(gallery); 1720 } 1721 1722 MenuItem item = menu.add(MenuHelper.GENERIC_ITEM, MENU_SETTINGS, 1723 0, R.string.settings) 1724 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 1725 public boolean onMenuItemClick(MenuItem item) { 1726 Intent intent = new Intent(); 1727 intent.setClass(Camera.this, CameraSettings.class); 1728 startActivity(intent); 1729 return true; 1730 } 1731 }); 1732 item.setIcon(android.R.drawable.ic_menu_preferences); 1733 } 1734} 1735 1736class FocusRectangle extends View { 1737 1738 @SuppressWarnings("unused") 1739 private static final String TAG = "FocusRectangle"; 1740 1741 public FocusRectangle(Context context, AttributeSet attrs) { 1742 super(context, attrs); 1743 } 1744 1745 private void setDrawable(int resid) { 1746 BitmapDrawable d = (BitmapDrawable) getResources().getDrawable(resid); 1747 // We do this because we don't want the bitmap to be scaled. 1748 d.setGravity(Gravity.CENTER); 1749 setBackgroundDrawable(d); 1750 } 1751 1752 public void showStart() { 1753 setDrawable(R.drawable.frame_autofocus_rectangle); 1754 } 1755 1756 public void showSuccess() { 1757 setDrawable(R.drawable.frame_focused_rectangle); 1758 } 1759 1760 public void showFail() { 1761 setDrawable(R.drawable.frame_nofocus_rectangle); 1762 } 1763 1764 public void clear() { 1765 setBackgroundDrawable(null); 1766 } 1767} 1768