CameraAppUI.java revision b45f618d4a3aa068766be8741213080532feaaff
1/* 2 * Copyright (C) 2013 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.app; 18 19import android.accessibilityservice.AccessibilityServiceInfo; 20import android.content.res.Resources; 21import android.graphics.Bitmap; 22import android.graphics.Canvas; 23import android.graphics.Matrix; 24import android.graphics.RectF; 25import android.graphics.SurfaceTexture; 26import android.hardware.display.DisplayManager; 27import android.util.CameraPerformanceTracker; 28import android.view.GestureDetector; 29import android.view.LayoutInflater; 30import android.view.MotionEvent; 31import android.view.TextureView; 32import android.view.View; 33import android.view.ViewConfiguration; 34import android.view.ViewGroup; 35import android.view.accessibility.AccessibilityManager; 36import android.widget.FrameLayout; 37 38import com.android.camera.AnimationManager; 39import com.android.camera.ButtonManager; 40import com.android.camera.CaptureLayoutHelper; 41import com.android.camera.ShutterButton; 42import com.android.camera.TextureViewHelper; 43import com.android.camera.debug.Log; 44import com.android.camera.filmstrip.FilmstripContentPanel; 45import com.android.camera.hardware.HardwareSpec; 46import com.android.camera.module.ModuleController; 47import com.android.camera.settings.Keys; 48import com.android.camera.settings.SettingsManager; 49import com.android.camera.ui.AbstractTutorialOverlay; 50import com.android.camera.ui.BottomBar; 51import com.android.camera.ui.CaptureAnimationOverlay; 52import com.android.camera.ui.GridLines; 53import com.android.camera.ui.MainActivityLayout; 54import com.android.camera.ui.ModeListView; 55import com.android.camera.ui.ModeTransitionView; 56import com.android.camera.ui.PreviewOverlay; 57import com.android.camera.ui.PreviewStatusListener; 58import com.android.camera.ui.StickyBottomCaptureLayout; 59import com.android.camera.ui.TouchCoordinate; 60import com.android.camera.ui.focus.FocusRing; 61import com.android.camera.util.AndroidServices; 62import com.android.camera.util.ApiHelper; 63import com.android.camera.util.CameraUtil; 64import com.android.camera.util.Gusterpolator; 65import com.android.camera.util.PhotoSphereHelper; 66import com.android.camera.widget.Cling; 67import com.android.camera.widget.FilmstripLayout; 68import com.android.camera.widget.IndicatorIconController; 69import com.android.camera.widget.ModeOptionsOverlay; 70import com.android.camera.widget.RoundedThumbnailView; 71import com.android.camera2.R; 72 73import java.util.List; 74 75/** 76 * CameraAppUI centralizes control of views shared across modules. Whereas module 77 * specific views will be handled in each Module UI. For example, we can now 78 * bring the flash animation and capture animation up from each module to app 79 * level, as these animations are largely the same for all modules. 80 * 81 * This class also serves to disambiguate touch events. It recognizes all the 82 * swipe gestures that happen on the preview by attaching a touch listener to 83 * a full-screen view on top of preview TextureView. Since CameraAppUI has knowledge 84 * of how swipe from each direction should be handled, it can then redirect these 85 * events to appropriate recipient views. 86 */ 87public class CameraAppUI implements ModeListView.ModeSwitchListener, 88 TextureView.SurfaceTextureListener, 89 ModeListView.ModeListOpenListener, 90 SettingsManager.OnSettingChangedListener, 91 ShutterButton.OnShutterButtonListener { 92 93 /** 94 * The bottom controls on the filmstrip. 95 */ 96 public static interface BottomPanel { 97 /** Values for the view state of the button. */ 98 public final int VIEWER_NONE = 0; 99 public final int VIEWER_PHOTO_SPHERE = 1; 100 public final int VIEWER_REFOCUS = 2; 101 public final int VIEWER_OTHER = 3; 102 103 /** 104 * Sets a new or replaces an existing listener for bottom control events. 105 */ 106 void setListener(Listener listener); 107 108 /** 109 * Sets cling for external viewer button. 110 */ 111 void setClingForViewer(int viewerType, Cling cling); 112 113 /** 114 * Clears cling for external viewer button. 115 */ 116 void clearClingForViewer(int viewerType); 117 118 /** 119 * Returns a cling for the specified viewer type. 120 */ 121 Cling getClingForViewer(int viewerType); 122 123 /** 124 * Set if the bottom controls are visible. 125 * @param visible {@code true} if visible. 126 */ 127 void setVisible(boolean visible); 128 129 /** 130 * @param visible Whether the button is visible. 131 */ 132 void setEditButtonVisibility(boolean visible); 133 134 /** 135 * @param enabled Whether the button is enabled. 136 */ 137 void setEditEnabled(boolean enabled); 138 139 /** 140 * Sets the visibility of the view-photosphere button. 141 * 142 * @param state one of {@link #VIEWER_NONE}, {@link #VIEWER_PHOTO_SPHERE}, 143 * {@link #VIEWER_REFOCUS}. 144 */ 145 void setViewerButtonVisibility(int state); 146 147 /** 148 * @param enabled Whether the button is enabled. 149 */ 150 void setViewEnabled(boolean enabled); 151 152 /** 153 * @param enabled Whether the button is enabled. 154 */ 155 void setTinyPlanetEnabled(boolean enabled); 156 157 /** 158 * @param visible Whether the button is visible. 159 */ 160 void setDeleteButtonVisibility(boolean visible); 161 162 /** 163 * @param enabled Whether the button is enabled. 164 */ 165 void setDeleteEnabled(boolean enabled); 166 167 /** 168 * @param visible Whether the button is visible. 169 */ 170 void setShareButtonVisibility(boolean visible); 171 172 /** 173 * @param enabled Whether the button is enabled. 174 */ 175 void setShareEnabled(boolean enabled); 176 177 /** 178 * Sets the texts for progress UI. 179 * 180 * @param text The text to show. 181 */ 182 void setProgressText(CharSequence text); 183 184 /** 185 * Sets the progress. 186 * 187 * @param progress The progress value. Should be between 0 and 100. 188 */ 189 void setProgress(int progress); 190 191 /** 192 * Replaces the progress UI with an error message. 193 */ 194 void showProgressError(CharSequence message); 195 196 /** 197 * Hide the progress error message. 198 */ 199 void hideProgressError(); 200 201 /** 202 * Shows the progress. 203 */ 204 void showProgress(); 205 206 /** 207 * Hides the progress. 208 */ 209 void hideProgress(); 210 211 /** 212 * Shows the controls. 213 */ 214 void showControls(); 215 216 /** 217 * Hides the controls. 218 */ 219 void hideControls(); 220 221 /** 222 * Classes implementing this interface can listen for events on the bottom 223 * controls. 224 */ 225 public static interface Listener { 226 /** 227 * Called when the user pressed the "view" button to e.g. view a photo 228 * sphere or RGBZ image. 229 */ 230 public void onExternalViewer(); 231 232 /** 233 * Called when the "edit" button is pressed. 234 */ 235 public void onEdit(); 236 237 /** 238 * Called when the "tiny planet" button is pressed. 239 */ 240 public void onTinyPlanet(); 241 242 /** 243 * Called when the "delete" button is pressed. 244 */ 245 public void onDelete(); 246 247 /** 248 * Called when the "share" button is pressed. 249 */ 250 public void onShare(); 251 252 /** 253 * Called when the progress error message is clicked. 254 */ 255 public void onProgressErrorClicked(); 256 } 257 } 258 259 /** 260 * BottomBarUISpec provides a structure for modules 261 * to specify their ideal bottom bar mode options layout. 262 * 263 * Once constructed by a module, this class should be 264 * treated as read only. 265 * 266 * The application then edits this spec according to 267 * hardware limitations and displays the final bottom 268 * bar ui. 269 */ 270 public static class BottomBarUISpec { 271 /** Mode options UI */ 272 273 /** 274 * Set true if the camera option should be enabled. 275 * If not set or false, and multiple cameras are supported, 276 * the camera option will be disabled. 277 * 278 * If multiple cameras are not supported, this preference 279 * is ignored and the camera option will not be visible. 280 */ 281 public boolean enableCamera; 282 283 /** 284 * Set true if the camera option should not be visible, regardless 285 * of hardware limitations. 286 */ 287 public boolean hideCamera; 288 289 /** 290 * Set true if the photo flash option should be enabled. 291 * If not set or false, the photo flash option will be 292 * disabled. 293 * 294 * If the hardware does not support multiple flash values, 295 * this preference is ignored and the flash option will 296 * be disabled. It will not be made invisible in order to 297 * preserve a consistent experience across devices and between 298 * front and back cameras. 299 */ 300 public boolean enableFlash; 301 302 /** 303 * Set true if the video flash option should be enabled. 304 * Same disable rules apply as the photo flash option. 305 */ 306 public boolean enableTorchFlash; 307 308 /** 309 * Set true if the HDR+ flash option should be enabled. 310 * Same disable rules apply as the photo flash option. 311 */ 312 public boolean enableHdrPlusFlash; 313 314 /** 315 * Set true if flash should not be visible, regardless of 316 * hardware limitations. 317 */ 318 public boolean hideFlash; 319 320 /** 321 * Set true if the hdr/hdr+ option should be enabled. 322 * If not set or false, the hdr/hdr+ option will be disabled. 323 * 324 * Hdr or hdr+ will be chosen based on hardware limitations, 325 * with hdr+ prefered. 326 * 327 * If hardware supports neither hdr nor hdr+, then the hdr/hdr+ 328 * will not be visible. 329 */ 330 public boolean enableHdr; 331 332 /** 333 * Set true if hdr/hdr+ should not be visible, regardless of 334 * hardware limitations. 335 */ 336 public boolean hideHdr; 337 338 /** 339 * Set true if grid lines should be visible. Not setting this 340 * causes grid lines to be disabled. This option is agnostic to 341 * the hardware. 342 */ 343 public boolean enableGridLines; 344 345 /** 346 * Set true if grid lines should not be visible. 347 */ 348 public boolean hideGridLines; 349 350 /** 351 * Set true if the panorama orientation option should be visible. 352 * 353 * This option is not constrained by hardware limitations. 354 */ 355 public boolean enablePanoOrientation; 356 357 public boolean enableExposureCompensation; 358 359 /** Intent UI */ 360 361 /** 362 * Set true if the intent ui cancel option should be visible. 363 */ 364 public boolean showCancel; 365 /** 366 * Set true if the intent ui done option should be visible. 367 */ 368 public boolean showDone; 369 /** 370 * Set true if the intent ui retake option should be visible. 371 */ 372 public boolean showRetake; 373 /** 374 * Set true if the intent ui review option should be visible. 375 */ 376 public boolean showReview; 377 378 /** Mode options callbacks */ 379 380 /** 381 * A {@link com.android.camera.ButtonManager.ButtonCallback} 382 * that will be executed when the camera option is pressed. This 383 * callback can be null. 384 */ 385 public ButtonManager.ButtonCallback cameraCallback; 386 387 /** 388 * A {@link com.android.camera.ButtonManager.ButtonCallback} 389 * that will be executed when the flash option is pressed. This 390 * callback can be null. 391 */ 392 public ButtonManager.ButtonCallback flashCallback; 393 394 /** 395 * A {@link com.android.camera.ButtonManager.ButtonCallback} 396 * that will be executed when the hdr/hdr+ option is pressed. This 397 * callback can be null. 398 */ 399 public ButtonManager.ButtonCallback hdrCallback; 400 401 /** 402 * A {@link com.android.camera.ButtonManager.ButtonCallback} 403 * that will be executed when the grid lines option is pressed. This 404 * callback can be null. 405 */ 406 public ButtonManager.ButtonCallback gridLinesCallback; 407 408 /** 409 * A {@link com.android.camera.ButtonManager.ButtonCallback} 410 * that will execute when the panorama orientation option is pressed. 411 * This callback can be null. 412 */ 413 public ButtonManager.ButtonCallback panoOrientationCallback; 414 415 /** Intent UI callbacks */ 416 417 /** 418 * A {@link android.view.View.OnClickListener} that will execute 419 * when the cancel option is pressed. This callback can be null. 420 */ 421 public View.OnClickListener cancelCallback; 422 423 /** 424 * A {@link android.view.View.OnClickListener} that will execute 425 * when the done option is pressed. This callback can be null. 426 */ 427 public View.OnClickListener doneCallback; 428 429 /** 430 * A {@link android.view.View.OnClickListener} that will execute 431 * when the retake option is pressed. This callback can be null. 432 */ 433 public View.OnClickListener retakeCallback; 434 435 /** 436 * A {@link android.view.View.OnClickListener} that will execute 437 * when the review option is pressed. This callback can be null. 438 */ 439 public View.OnClickListener reviewCallback; 440 441 /** 442 * A ExposureCompensationSetCallback that will execute 443 * when an expsosure button is pressed. This callback can be null. 444 */ 445 public interface ExposureCompensationSetCallback { 446 public void setExposure(int value); 447 } 448 public ExposureCompensationSetCallback exposureCompensationSetCallback; 449 450 /** 451 * Exposure compensation parameters. 452 */ 453 public int minExposureCompensation; 454 public int maxExposureCompensation; 455 public float exposureCompensationStep; 456 457 /** 458 * Whether self-timer is enabled. 459 */ 460 public boolean enableSelfTimer = false; 461 462 /** 463 * Whether the option for self-timer should show. If true and 464 * {@link #enableSelfTimer} is false, then the option should be shown 465 * disabled. 466 */ 467 public boolean showSelfTimer = false; 468 } 469 470 471 private final static Log.Tag TAG = new Log.Tag("CameraAppUI"); 472 473 private final AppController mController; 474 private final boolean mIsCaptureIntent; 475 private final AnimationManager mAnimationManager; 476 477 // Swipe states: 478 private final static int IDLE = 0; 479 private final static int SWIPE_UP = 1; 480 private final static int SWIPE_DOWN = 2; 481 private final static int SWIPE_LEFT = 3; 482 private final static int SWIPE_RIGHT = 4; 483 private boolean mSwipeEnabled = true; 484 485 // Shared Surface Texture properities. 486 private SurfaceTexture mSurface; 487 private int mSurfaceWidth; 488 private int mSurfaceHeight; 489 490 // Touch related measures: 491 private final int mSlop; 492 private final static int SWIPE_TIME_OUT_MS = 500; 493 494 // Mode cover states: 495 private final static int COVER_HIDDEN = 0; 496 private final static int COVER_SHOWN = 1; 497 private final static int COVER_WILL_HIDE_AT_NEXT_FRAME = 2; 498 private static final int COVER_WILL_HIDE_AT_NEXT_TEXTURE_UPDATE = 3; 499 500 /** 501 * Preview down-sample rate when taking a screenshot. 502 */ 503 private final static int DOWN_SAMPLE_RATE_FOR_SCREENSHOT = 2; 504 505 // App level views: 506 private final FrameLayout mCameraRootView; 507 private final ModeTransitionView mModeTransitionView; 508 private final MainActivityLayout mAppRootView; 509 private final ModeListView mModeListView; 510 private final FilmstripLayout mFilmstripLayout; 511 private TextureView mTextureView; 512 private FrameLayout mModuleUI; 513 private ShutterButton mShutterButton; 514 private BottomBar mBottomBar; 515 private ModeOptionsOverlay mModeOptionsOverlay; 516 private IndicatorIconController mIndicatorIconController; 517 private FocusRing mFocusRing; 518 private FrameLayout mTutorialsPlaceHolderWrapper; 519 private StickyBottomCaptureLayout mStickyBottomCaptureLayout; 520 private TextureViewHelper mTextureViewHelper; 521 private final GestureDetector mGestureDetector; 522 private DisplayManager.DisplayListener mDisplayListener; 523 private int mLastRotation; 524 private int mSwipeState = IDLE; 525 private PreviewOverlay mPreviewOverlay; 526 private GridLines mGridLines; 527 private CaptureAnimationOverlay mCaptureOverlay; 528 private PreviewStatusListener mPreviewStatusListener; 529 private int mModeCoverState = COVER_HIDDEN; 530 private final FilmstripBottomPanel mFilmstripBottomControls; 531 private final FilmstripContentPanel mFilmstripPanel; 532 private Runnable mHideCoverRunnable; 533 private final View.OnLayoutChangeListener mPreviewLayoutChangeListener 534 = new View.OnLayoutChangeListener() { 535 @Override 536 public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft, 537 int oldTop, int oldRight, int oldBottom) { 538 if (mPreviewStatusListener != null) { 539 mPreviewStatusListener.onPreviewLayoutChanged(v, left, top, right, bottom, oldLeft, 540 oldTop, oldRight, oldBottom); 541 } 542 } 543 }; 544 private View mModeOptionsToggle; 545 private final RoundedThumbnailView mRoundedThumbnailView; 546 private final CaptureLayoutHelper mCaptureLayoutHelper; 547 private boolean mAccessibilityEnabled; 548 private final View mAccessibilityAffordances; 549 550 private boolean mDisableAllUserInteractions; 551 /** 552 * Provides current preview frame and the controls/overlay from the module that 553 * are shown on top of the preview. 554 */ 555 public interface CameraModuleScreenShotProvider { 556 /** 557 * Returns the current preview frame down-sampled using the given down-sample 558 * factor. 559 * 560 * @param downSampleFactor the down sample factor for down sampling the 561 * preview frame. (e.g. a down sample factor of 562 * 2 means to scale down the preview frame to 1/2 563 * the width and height.) 564 * @return down-sampled preview frame 565 */ 566 public Bitmap getPreviewFrame(int downSampleFactor); 567 568 /** 569 * @return the controls and overlays that are currently showing on top of 570 * the preview drawn into a bitmap with no scaling applied. 571 */ 572 public Bitmap getPreviewOverlayAndControls(); 573 574 /** 575 * Returns a bitmap containing the current screenshot. 576 * 577 * @param previewDownSampleFactor the downsample factor applied on the 578 * preview frame when taking the screenshot 579 */ 580 public Bitmap getScreenShot(int previewDownSampleFactor); 581 } 582 583 /** 584 * This listener gets called when the size of the window (excluding the system 585 * decor such as status bar and nav bar) has changed. 586 */ 587 public interface NonDecorWindowSizeChangedListener { 588 public void onNonDecorWindowSizeChanged(int width, int height, int rotation); 589 } 590 591 private final CameraModuleScreenShotProvider mCameraModuleScreenShotProvider = 592 new CameraModuleScreenShotProvider() { 593 @Override 594 public Bitmap getPreviewFrame(int downSampleFactor) { 595 if (mCameraRootView == null || mTextureView == null) { 596 return null; 597 } 598 // Gets the bitmap from the preview TextureView. 599 Bitmap preview = mTextureViewHelper.getPreviewBitmap(downSampleFactor); 600 return preview; 601 } 602 603 @Override 604 public Bitmap getPreviewOverlayAndControls() { 605 Bitmap overlays = Bitmap.createBitmap(mCameraRootView.getWidth(), 606 mCameraRootView.getHeight(), Bitmap.Config.ARGB_8888); 607 Canvas canvas = new Canvas(overlays); 608 mCameraRootView.draw(canvas); 609 return overlays; 610 } 611 612 @Override 613 public Bitmap getScreenShot(int previewDownSampleFactor) { 614 Bitmap screenshot = Bitmap.createBitmap(mCameraRootView.getWidth(), 615 mCameraRootView.getHeight(), Bitmap.Config.ARGB_8888); 616 Canvas canvas = new Canvas(screenshot); 617 canvas.drawARGB(255, 0, 0, 0); 618 Bitmap preview = mTextureViewHelper.getPreviewBitmap(previewDownSampleFactor); 619 if (preview != null) { 620 canvas.drawBitmap(preview, null, mTextureViewHelper.getPreviewArea(), null); 621 } 622 Bitmap overlay = getPreviewOverlayAndControls(); 623 if (overlay != null) { 624 canvas.drawBitmap(overlay, 0f, 0f, null); 625 } 626 return screenshot; 627 } 628 }; 629 630 private long mCoverHiddenTime = -1; // System time when preview cover was hidden. 631 632 public long getCoverHiddenTime() { 633 return mCoverHiddenTime; 634 } 635 636 /** 637 * This resets the preview to have no applied transform matrix. 638 */ 639 public void clearPreviewTransform() { 640 mTextureViewHelper.clearTransform(); 641 } 642 643 public void updatePreviewAspectRatio(float aspectRatio) { 644 mTextureViewHelper.updateAspectRatio(aspectRatio); 645 } 646 647 /** 648 * WAR: Reset the SurfaceTexture's default buffer size to the current view dimensions of 649 * its TextureView. This is necessary to get the expected behavior for the TextureView's 650 * HardwareLayer transform matrix (set by TextureView#setTransform) after configuring the 651 * SurfaceTexture as an output for the Camera2 API (which involves changing the default buffer 652 * size). 653 * 654 * b/17286155 - Tracking a fix for this in HardwareLayer. 655 */ 656 public void setDefaultBufferSizeToViewDimens() { 657 if (mSurface == null || mTextureView == null) { 658 Log.w(TAG, "Could not set SurfaceTexture default buffer dimensions, not yet setup"); 659 return; 660 } 661 mSurface.setDefaultBufferSize(mTextureView.getWidth(), mTextureView.getHeight()); 662 } 663 664 /** 665 * Updates the preview matrix without altering it. 666 * 667 * @param matrix 668 * @param aspectRatio the desired aspect ratio for the preview. 669 */ 670 public void updatePreviewTransformFullscreen(Matrix matrix, float aspectRatio) { 671 mTextureViewHelper.updateTransformFullScreen(matrix, aspectRatio); 672 } 673 674 /** 675 * @return the rect that will display the preview. 676 */ 677 public RectF getFullscreenRect() { 678 return mTextureViewHelper.getFullscreenRect(); 679 } 680 681 /** 682 * This is to support modules that calculate their own transform matrix because 683 * they need to use a transform matrix to rotate the preview. 684 * 685 * @param matrix transform matrix to be set on the TextureView 686 */ 687 public void updatePreviewTransform(Matrix matrix) { 688 mTextureViewHelper.updateTransform(matrix); 689 } 690 691 public interface AnimationFinishedListener { 692 public void onAnimationFinished(boolean success); 693 } 694 695 private class MyTouchListener implements View.OnTouchListener { 696 private boolean mScaleStarted = false; 697 @Override 698 public boolean onTouch(View v, MotionEvent event) { 699 if (event.getActionMasked() == MotionEvent.ACTION_DOWN) { 700 mScaleStarted = false; 701 } else if (event.getActionMasked() == MotionEvent.ACTION_POINTER_DOWN) { 702 mScaleStarted = true; 703 } 704 return (!mScaleStarted) && mGestureDetector.onTouchEvent(event); 705 } 706 } 707 708 /** 709 * This gesture listener finds out the direction of the scroll gestures and 710 * sends them to CameraAppUI to do further handling. 711 */ 712 private class MyGestureListener extends GestureDetector.SimpleOnGestureListener { 713 private MotionEvent mDown; 714 715 @Override 716 public boolean onScroll(MotionEvent e1, MotionEvent ev, float distanceX, float distanceY) { 717 if (ev.getEventTime() - ev.getDownTime() > SWIPE_TIME_OUT_MS 718 || mSwipeState != IDLE 719 || mIsCaptureIntent 720 || !mSwipeEnabled) { 721 return false; 722 } 723 724 int deltaX = (int) (ev.getX() - mDown.getX()); 725 int deltaY = (int) (ev.getY() - mDown.getY()); 726 if (ev.getActionMasked() == MotionEvent.ACTION_MOVE) { 727 if (Math.abs(deltaX) > mSlop || Math.abs(deltaY) > mSlop) { 728 // Calculate the direction of the swipe. 729 if (deltaX >= Math.abs(deltaY)) { 730 // Swipe right. 731 setSwipeState(SWIPE_RIGHT); 732 } else if (deltaX <= -Math.abs(deltaY)) { 733 // Swipe left. 734 setSwipeState(SWIPE_LEFT); 735 } 736 } 737 } 738 return true; 739 } 740 741 private void setSwipeState(int swipeState) { 742 mSwipeState = swipeState; 743 // Notify new swipe detected. 744 onSwipeDetected(swipeState); 745 } 746 747 @Override 748 public boolean onDown(MotionEvent ev) { 749 mDown = MotionEvent.obtain(ev); 750 mSwipeState = IDLE; 751 return false; 752 } 753 } 754 755 public CameraAppUI(AppController controller, MainActivityLayout appRootView, 756 boolean isCaptureIntent) { 757 mSlop = ViewConfiguration.get(controller.getAndroidContext()).getScaledTouchSlop(); 758 mController = controller; 759 mIsCaptureIntent = isCaptureIntent; 760 761 mAppRootView = appRootView; 762 mFilmstripLayout = (FilmstripLayout) appRootView.findViewById(R.id.filmstrip_layout); 763 mCameraRootView = (FrameLayout) appRootView.findViewById(R.id.camera_app_root); 764 mModeTransitionView = (ModeTransitionView) 765 mAppRootView.findViewById(R.id.mode_transition_view); 766 mFilmstripBottomControls = new FilmstripBottomPanel(controller, 767 (ViewGroup) mAppRootView.findViewById(R.id.filmstrip_bottom_panel)); 768 mFilmstripPanel = (FilmstripContentPanel) mAppRootView.findViewById(R.id.filmstrip_layout); 769 mGestureDetector = new GestureDetector(controller.getAndroidContext(), 770 new MyGestureListener()); 771 Resources res = controller.getAndroidContext().getResources(); 772 mCaptureLayoutHelper = new CaptureLayoutHelper( 773 res.getDimensionPixelSize(R.dimen.bottom_bar_height_min), 774 res.getDimensionPixelSize(R.dimen.bottom_bar_height_max), 775 res.getDimensionPixelSize(R.dimen.bottom_bar_height_optimal)); 776 mModeListView = (ModeListView) appRootView.findViewById(R.id.mode_list_layout); 777 if (mModeListView != null) { 778 mModeListView.setModeSwitchListener(this); 779 mModeListView.setModeListOpenListener(this); 780 mModeListView.setCameraModuleScreenShotProvider(mCameraModuleScreenShotProvider); 781 mModeListView.setCaptureLayoutHelper(mCaptureLayoutHelper); 782 boolean shouldShowSettingsCling = mController.getSettingsManager().getBoolean( 783 SettingsManager.SCOPE_GLOBAL, 784 Keys.KEY_SHOULD_SHOW_SETTINGS_BUTTON_CLING); 785 mModeListView.setShouldShowSettingsCling(shouldShowSettingsCling); 786 } else { 787 Log.e(TAG, "Cannot find mode list in the view hierarchy"); 788 } 789 mAnimationManager = new AnimationManager(); 790 mRoundedThumbnailView = (RoundedThumbnailView) appRootView.findViewById(R.id.rounded_thumbnail_view); 791 mRoundedThumbnailView.setOnClickListener(new View.OnClickListener() { 792 @Override 793 public void onClick(View v) { 794 mFilmstripLayout.showFilmstrip(); 795 } 796 }); 797 798 mAppRootView.setNonDecorWindowSizeChangedListener(mCaptureLayoutHelper); 799 initDisplayListener(); 800 mAccessibilityAffordances = mAppRootView.findViewById(R.id.accessibility_affordances); 801 View modeListToggle = mAppRootView.findViewById(R.id.accessibility_mode_toggle_button); 802 modeListToggle.setOnClickListener(new View.OnClickListener() { 803 @Override 804 public void onClick(View view) { 805 openModeList(); 806 } 807 }); 808 View filmstripToggle = mAppRootView.findViewById( 809 R.id.accessibility_filmstrip_toggle_button); 810 filmstripToggle.setOnClickListener(new View.OnClickListener() { 811 @Override 812 public void onClick(View view) { 813 showFilmstrip(); 814 } 815 }); 816 } 817 818 819 /** 820 * Freeze what is currently shown on screen until the next preview frame comes 821 * in. 822 */ 823 public void freezeScreenUntilPreviewReady() { 824 Log.v(TAG, "freezeScreenUntilPreviewReady"); 825 mModeTransitionView.setupModeCover(mCameraModuleScreenShotProvider 826 .getScreenShot(DOWN_SAMPLE_RATE_FOR_SCREENSHOT)); 827 mHideCoverRunnable = new Runnable() { 828 @Override 829 public void run() { 830 mModeTransitionView.hideImageCover(); 831 } 832 }; 833 mModeCoverState = COVER_SHOWN; 834 } 835 836 /** 837 * Creates a cling for the specific viewer and links the cling to the corresponding 838 * button for layout position. 839 * 840 * @param viewerType defines which viewer the cling is for. 841 */ 842 public void setupClingForViewer(int viewerType) { 843 if (viewerType == BottomPanel.VIEWER_REFOCUS) { 844 FrameLayout filmstripContent = (FrameLayout) mAppRootView 845 .findViewById(R.id.camera_filmstrip_content_layout); 846 if (filmstripContent != null) { 847 // Creates refocus cling. 848 LayoutInflater inflater = AndroidServices.instance().provideLayoutInflater(); 849 Cling refocusCling = (Cling) inflater.inflate(R.layout.cling_widget, null, false); 850 // Sets instruction text in the cling. 851 refocusCling.setText(mController.getAndroidContext().getResources() 852 .getString(R.string.cling_text_for_refocus_editor_button)); 853 854 // Adds cling into view hierarchy. 855 int clingWidth = mController.getAndroidContext() 856 .getResources().getDimensionPixelSize(R.dimen.default_cling_width); 857 filmstripContent.addView(refocusCling, clingWidth, 858 ViewGroup.LayoutParams.WRAP_CONTENT); 859 mFilmstripBottomControls.setClingForViewer(viewerType, refocusCling); 860 } 861 } 862 } 863 864 /** 865 * Clears the listeners for the cling and remove it from the view hierarchy. 866 * 867 * @param viewerType defines which viewer the cling is for. 868 */ 869 public void clearClingForViewer(int viewerType) { 870 Cling clingToBeRemoved = mFilmstripBottomControls.getClingForViewer(viewerType); 871 if (clingToBeRemoved == null) { 872 // No cling is created for the specific viewer type. 873 return; 874 } 875 mFilmstripBottomControls.clearClingForViewer(viewerType); 876 clingToBeRemoved.setVisibility(View.GONE); 877 mAppRootView.removeView(clingToBeRemoved); 878 } 879 880 /** 881 * Enable or disable swipe gestures. We want to disable them e.g. while we 882 * record a video. 883 */ 884 public void setSwipeEnabled(boolean enabled) { 885 mSwipeEnabled = enabled; 886 // TODO: This can be removed once we come up with a new design for handling swipe 887 // on shutter button and mode options. (More details: b/13751653) 888 mAppRootView.setSwipeEnabled(enabled); 889 } 890 891 public void onDestroy() { 892 AndroidServices.instance().provideDisplayManager() 893 .unregisterDisplayListener(mDisplayListener); 894 } 895 896 /** 897 * Initializes the display listener to listen to display changes such as 898 * 180-degree rotation change, which will not have an onConfigurationChanged 899 * callback. 900 */ 901 private void initDisplayListener() { 902 if (ApiHelper.HAS_DISPLAY_LISTENER) { 903 mLastRotation = CameraUtil.getDisplayRotation(); 904 905 mDisplayListener = new DisplayManager.DisplayListener() { 906 @Override 907 public void onDisplayAdded(int arg0) { 908 // Do nothing. 909 } 910 911 @Override 912 public void onDisplayChanged(int displayId) { 913 int rotation = CameraUtil.getDisplayRotation( 914 ); 915 if ((rotation - mLastRotation + 360) % 360 == 180 916 && mPreviewStatusListener != null) { 917 mPreviewStatusListener.onPreviewFlipped(); 918 mStickyBottomCaptureLayout.requestLayout(); 919 mModeListView.requestLayout(); 920 mTextureView.requestLayout(); 921 } 922 mLastRotation = rotation; 923 } 924 925 @Override 926 public void onDisplayRemoved(int arg0) { 927 // Do nothing. 928 } 929 }; 930 931 AndroidServices.instance().provideDisplayManager() 932 .registerDisplayListener(mDisplayListener, null); 933 } 934 } 935 936 /** 937 * Redirects touch events to appropriate recipient views based on swipe direction. 938 * More specifically, swipe up and swipe down will be handled by the view that handles 939 * mode transition; swipe left will be send to filmstrip; swipe right will be redirected 940 * to mode list in order to bring up mode list. 941 */ 942 private void onSwipeDetected(int swipeState) { 943 if (swipeState == SWIPE_UP || swipeState == SWIPE_DOWN) { 944 // TODO: Polish quick switch after this release. 945 // Quick switch between modes. 946 int currentModuleIndex = mController.getCurrentModuleIndex(); 947 final int moduleToTransitionTo = 948 mController.getQuickSwitchToModuleId(currentModuleIndex); 949 if (currentModuleIndex != moduleToTransitionTo) { 950 mAppRootView.redirectTouchEventsTo(mModeTransitionView); 951 int shadeColorId = R.color.mode_cover_default_color; 952 int iconRes = CameraUtil.getCameraModeCoverIconResId(moduleToTransitionTo, 953 mController.getAndroidContext()); 954 955 AnimationFinishedListener listener = new AnimationFinishedListener() { 956 @Override 957 public void onAnimationFinished(boolean success) { 958 if (success) { 959 mHideCoverRunnable = new Runnable() { 960 @Override 961 public void run() { 962 mModeTransitionView.startPeepHoleAnimation(); 963 } 964 }; 965 mModeCoverState = COVER_SHOWN; 966 // Go to new module when the previous operation is successful. 967 mController.onModeSelected(moduleToTransitionTo); 968 } 969 } 970 }; 971 } 972 } else if (swipeState == SWIPE_LEFT) { 973 // Pass the touch sequence to filmstrip layout. 974 mAppRootView.redirectTouchEventsTo(mFilmstripLayout); 975 } else if (swipeState == SWIPE_RIGHT) { 976 // Pass the touch to mode switcher 977 mAppRootView.redirectTouchEventsTo(mModeListView); 978 } 979 } 980 981 /** 982 * Gets called when activity resumes in preview. 983 */ 984 public void resume() { 985 // Show mode theme cover until preview is ready 986 showModeCoverUntilPreviewReady(); 987 988 // Hide action bar first since we are in full screen mode first, and 989 // switch the system UI to lights-out mode. 990 mFilmstripPanel.hide(); 991 992 // Show UI that is meant to only be used when spoken feedback is 993 // enabled. 994 mAccessibilityEnabled = isSpokenFeedbackAccessibilityEnabled(); 995 mAccessibilityAffordances.setVisibility( 996 (!mIsCaptureIntent && mAccessibilityEnabled) ? View.VISIBLE : View.GONE); 997 } 998 999 /** 1000 * @return Whether any spoken feedback accessibility feature is currently 1001 * enabled. 1002 */ 1003 private boolean isSpokenFeedbackAccessibilityEnabled() { 1004 AccessibilityManager accessibilityManager = AndroidServices.instance() 1005 .provideAccessibilityManager(); 1006 List<AccessibilityServiceInfo> infos = accessibilityManager 1007 .getEnabledAccessibilityServiceList(AccessibilityServiceInfo.FEEDBACK_SPOKEN); 1008 return infos != null && !infos.isEmpty(); 1009 } 1010 1011 /** 1012 * Opens the mode list (e.g. because of the menu button being pressed) and 1013 * adapts the rest of the UI. 1014 */ 1015 public void openModeList() { 1016 mModeOptionsOverlay.closeModeOptions(); 1017 mModeListView.onMenuPressed(); 1018 } 1019 1020 /** 1021 * A cover view showing the mode theme color and mode icon will be visible on 1022 * top of preview until preview is ready (i.e. camera preview is started and 1023 * the first frame has been received). 1024 */ 1025 private void showModeCoverUntilPreviewReady() { 1026 int modeId = mController.getCurrentModuleIndex(); 1027 int colorId = R.color.mode_cover_default_color;; 1028 int iconId = CameraUtil.getCameraModeCoverIconResId(modeId, mController.getAndroidContext()); 1029 mModeTransitionView.setupModeCover(colorId, iconId); 1030 mHideCoverRunnable = new Runnable() { 1031 @Override 1032 public void run() { 1033 mModeTransitionView.hideModeCover(null); 1034 if (!mDisableAllUserInteractions) { 1035 showShimmyDelayed(); 1036 } 1037 } 1038 }; 1039 mModeCoverState = COVER_SHOWN; 1040 } 1041 1042 private void showShimmyDelayed() { 1043 if (!mIsCaptureIntent) { 1044 // Show shimmy in SHIMMY_DELAY_MS 1045 mModeListView.showModeSwitcherHint(); 1046 } 1047 } 1048 1049 private void hideModeCover() { 1050 if (mHideCoverRunnable != null) { 1051 mAppRootView.post(mHideCoverRunnable); 1052 mHideCoverRunnable = null; 1053 } 1054 mModeCoverState = COVER_HIDDEN; 1055 if (mCoverHiddenTime < 0) { 1056 mCoverHiddenTime = System.currentTimeMillis(); 1057 } 1058 } 1059 1060 1061 public void onPreviewVisiblityChanged(int visibility) { 1062 if (visibility == ModuleController.VISIBILITY_HIDDEN) { 1063 setIndicatorBottomBarWrapperVisible(false); 1064 mAccessibilityAffordances.setVisibility(View.GONE); 1065 } else { 1066 setIndicatorBottomBarWrapperVisible(true); 1067 if (!mIsCaptureIntent && mAccessibilityEnabled) { 1068 mAccessibilityAffordances.setVisibility(View.VISIBLE); 1069 } else { 1070 mAccessibilityAffordances.setVisibility(View.GONE); 1071 } 1072 } 1073 } 1074 1075 /** 1076 * Call to stop the preview from being rendered. 1077 */ 1078 public void pausePreviewRendering() { 1079 mTextureView.setVisibility(View.INVISIBLE); 1080 } 1081 1082 /** 1083 * Call to begin rendering the preview again. 1084 */ 1085 public void resumePreviewRendering() { 1086 mTextureView.setVisibility(View.VISIBLE); 1087 } 1088 1089 /** 1090 * Returns the transform associated with the preview view. 1091 * 1092 * @param m the Matrix in which to copy the current transform. 1093 * @return The specified matrix if not null or a new Matrix instance 1094 * otherwise. 1095 */ 1096 public Matrix getPreviewTransform(Matrix m) { 1097 return mTextureView.getTransform(m); 1098 } 1099 1100 @Override 1101 public void onOpenFullScreen() { 1102 // Do nothing. 1103 } 1104 1105 @Override 1106 public void onModeListOpenProgress(float progress) { 1107 progress = 1 - progress; 1108 float interpolatedProgress = Gusterpolator.INSTANCE.getInterpolation(progress); 1109 mModeOptionsToggle.setAlpha(interpolatedProgress); 1110 // Change shutter button alpha linearly based on the mode list open progress: 1111 // set the alpha to disabled alpha when list is fully open, to enabled alpha 1112 // when the list is fully closed. 1113 mShutterButton.setAlpha(progress * ShutterButton.ALPHA_WHEN_ENABLED 1114 + (1 - progress) * ShutterButton.ALPHA_WHEN_DISABLED); 1115 } 1116 1117 @Override 1118 public void onModeListClosed() { 1119 // Make sure the alpha on mode options ellipse is reset when mode drawer 1120 // is closed. 1121 mModeOptionsToggle.setAlpha(1f); 1122 mShutterButton.setAlpha(ShutterButton.ALPHA_WHEN_ENABLED); 1123 } 1124 1125 /** 1126 * Called when the back key is pressed. 1127 * 1128 * @return Whether the UI responded to the key event. 1129 */ 1130 public boolean onBackPressed() { 1131 if (mFilmstripLayout.getVisibility() == View.VISIBLE) { 1132 return mFilmstripLayout.onBackPressed(); 1133 } else { 1134 return mModeListView.onBackPressed(); 1135 } 1136 } 1137 1138 /** 1139 * Sets a {@link com.android.camera.ui.PreviewStatusListener} that 1140 * listens to SurfaceTexture changes. In addition, listeners are set on 1141 * dependent app ui elements. 1142 * 1143 * @param previewStatusListener the listener that gets notified when SurfaceTexture 1144 * changes 1145 */ 1146 public void setPreviewStatusListener(PreviewStatusListener previewStatusListener) { 1147 mPreviewStatusListener = previewStatusListener; 1148 if (mPreviewStatusListener != null) { 1149 onPreviewListenerChanged(); 1150 } 1151 } 1152 1153 /** 1154 * When the PreviewStatusListener changes, listeners need to be 1155 * set on the following app ui elements: 1156 * {@link com.android.camera.ui.PreviewOverlay}, 1157 * {@link com.android.camera.ui.BottomBar}, 1158 * {@link com.android.camera.ui.IndicatorIconController}. 1159 */ 1160 private void onPreviewListenerChanged() { 1161 // Set a listener for recognizing preview gestures. 1162 GestureDetector.OnGestureListener gestureListener 1163 = mPreviewStatusListener.getGestureListener(); 1164 if (gestureListener != null) { 1165 mPreviewOverlay.setGestureListener(gestureListener); 1166 } 1167 View.OnTouchListener touchListener = mPreviewStatusListener.getTouchListener(); 1168 if (touchListener != null) { 1169 mPreviewOverlay.setTouchListener(touchListener); 1170 } 1171 1172 mTextureViewHelper.setAutoAdjustTransform( 1173 mPreviewStatusListener.shouldAutoAdjustTransformMatrixOnLayout()); 1174 } 1175 1176 /** 1177 * This method should be called in onCameraOpened. It defines CameraAppUI 1178 * specific changes that depend on the camera or camera settings. 1179 */ 1180 public void onChangeCamera() { 1181 ModuleController moduleController = mController.getCurrentModuleController(); 1182 applyModuleSpecs(moduleController.getHardwareSpec(), moduleController.getBottomBarSpec()); 1183 1184 if (mIndicatorIconController != null) { 1185 // Sync the settings state with the indicator state. 1186 mIndicatorIconController.syncIndicators(); 1187 } 1188 } 1189 1190 /** 1191 * Adds a listener to receive callbacks when preview area changes. 1192 */ 1193 public void addPreviewAreaChangedListener( 1194 PreviewStatusListener.PreviewAreaChangedListener listener) { 1195 mTextureViewHelper.addPreviewAreaSizeChangedListener(listener); 1196 } 1197 1198 /** 1199 * Removes a listener that receives callbacks when preview area changes. 1200 */ 1201 public void removePreviewAreaChangedListener( 1202 PreviewStatusListener.PreviewAreaChangedListener listener) { 1203 mTextureViewHelper.removePreviewAreaSizeChangedListener(listener); 1204 } 1205 1206 /** 1207 * This inflates generic_module layout, which contains all the shared views across 1208 * modules. Then each module inflates their own views in the given view group. For 1209 * now, this is called every time switching from a not-yet-refactored module to a 1210 * refactored module. In the future, this should only need to be done once per app 1211 * start. 1212 */ 1213 public void prepareModuleUI() { 1214 mController.getSettingsManager().addListener(this); 1215 mModuleUI = (FrameLayout) mCameraRootView.findViewById(R.id.module_layout); 1216 mTextureView = (TextureView) mCameraRootView.findViewById(R.id.preview_content); 1217 mTextureViewHelper = new TextureViewHelper(mTextureView, mCaptureLayoutHelper, 1218 mController.getCameraProvider()); 1219 mTextureViewHelper.setSurfaceTextureListener(this); 1220 mTextureViewHelper.setOnLayoutChangeListener(mPreviewLayoutChangeListener); 1221 1222 mBottomBar = (BottomBar) mCameraRootView.findViewById(R.id.bottom_bar); 1223 int unpressedColor = mController.getAndroidContext().getResources() 1224 .getColor(R.color.bottombar_unpressed); 1225 setBottomBarColor(unpressedColor); 1226 updateModeSpecificUIColors(); 1227 1228 mBottomBar.setCaptureLayoutHelper(mCaptureLayoutHelper); 1229 1230 mModeOptionsOverlay 1231 = (ModeOptionsOverlay) mCameraRootView.findViewById(R.id.mode_options_overlay); 1232 1233 // Sets the visibility of the bottom bar and the mode options. 1234 resetBottomControls(mController.getCurrentModuleController(), 1235 mController.getCurrentModuleIndex()); 1236 mModeOptionsOverlay.setCaptureLayoutHelper(mCaptureLayoutHelper); 1237 1238 mShutterButton = (ShutterButton) mCameraRootView.findViewById(R.id.shutter_button); 1239 addShutterListener(mController.getCurrentModuleController()); 1240 addShutterListener(mModeOptionsOverlay); 1241 addShutterListener(this); 1242 1243 mGridLines = (GridLines) mCameraRootView.findViewById(R.id.grid_lines); 1244 mTextureViewHelper.addPreviewAreaSizeChangedListener(mGridLines); 1245 1246 mPreviewOverlay = (PreviewOverlay) mCameraRootView.findViewById(R.id.preview_overlay); 1247 mPreviewOverlay.setOnTouchListener(new MyTouchListener()); 1248 mPreviewOverlay.setOnPreviewTouchedListener(mModeOptionsOverlay); 1249 1250 mCaptureOverlay = (CaptureAnimationOverlay) 1251 mCameraRootView.findViewById(R.id.capture_overlay); 1252 mTextureViewHelper.addPreviewAreaSizeChangedListener(mPreviewOverlay); 1253 mTextureViewHelper.addPreviewAreaSizeChangedListener(mCaptureOverlay); 1254 1255 if (mIndicatorIconController == null) { 1256 mIndicatorIconController = 1257 new IndicatorIconController(mController, mAppRootView); 1258 } 1259 1260 mController.getButtonManager().load(mCameraRootView); 1261 mController.getButtonManager().setListener(mIndicatorIconController); 1262 mController.getSettingsManager().addListener(mIndicatorIconController); 1263 1264 mModeOptionsToggle = mCameraRootView.findViewById(R.id.mode_options_toggle); 1265 mFocusRing = (FocusRing) mCameraRootView.findViewById(R.id.focus_ring); 1266 mTutorialsPlaceHolderWrapper = (FrameLayout) mCameraRootView 1267 .findViewById(R.id.tutorials_placeholder_wrapper); 1268 mStickyBottomCaptureLayout = (StickyBottomCaptureLayout) mAppRootView 1269 .findViewById(R.id.sticky_bottom_capture_layout); 1270 mStickyBottomCaptureLayout.setCaptureLayoutHelper(mCaptureLayoutHelper); 1271 1272 mTextureViewHelper.addPreviewAreaSizeChangedListener(mModeListView); 1273 mTextureViewHelper.addAspectRatioChangedListener( 1274 new PreviewStatusListener.PreviewAspectRatioChangedListener() { 1275 @Override 1276 public void onPreviewAspectRatioChanged(float aspectRatio) { 1277 mModeOptionsOverlay.requestLayout(); 1278 mBottomBar.requestLayout(); 1279 } 1280 } 1281 ); 1282 } 1283 1284 /** 1285 * Called indirectly from each module in their initialization to get a view group 1286 * to inflate the module specific views in. 1287 * 1288 * @return a view group for modules to attach views to 1289 */ 1290 public FrameLayout getModuleRootView() { 1291 // TODO: Change it to mModuleUI when refactor is done 1292 return mCameraRootView; 1293 } 1294 1295 /** 1296 * Remove all the module specific views. 1297 */ 1298 public void clearModuleUI() { 1299 if (mModuleUI != null) { 1300 mModuleUI.removeAllViews(); 1301 } 1302 removeShutterListener(mController.getCurrentModuleController()); 1303 mTutorialsPlaceHolderWrapper.removeAllViews(); 1304 mTutorialsPlaceHolderWrapper.setVisibility(View.GONE); 1305 1306 setShutterButtonEnabled(true); 1307 mPreviewStatusListener = null; 1308 mPreviewOverlay.reset(); 1309 1310 Log.v(TAG, "mFocusRing.stopFocusAnimations()"); 1311 mFocusRing.stopFocusAnimations(); 1312 } 1313 1314 /** 1315 * Gets called when preview is ready to start. It sets up one shot preview callback 1316 * in order to receive a callback when the preview frame is available, so that 1317 * the preview cover can be hidden to reveal preview. 1318 * 1319 * An alternative for getting the timing to hide preview cover is through 1320 * {@link CameraAppUI#onSurfaceTextureUpdated(android.graphics.SurfaceTexture)}, 1321 * which is less accurate but therefore is the fallback for modules that manage 1322 * their own preview callbacks (as setting one preview callback will override 1323 * any other installed preview callbacks), or use camera2 API. 1324 */ 1325 public void onPreviewReadyToStart() { 1326 if (mModeCoverState == COVER_SHOWN) { 1327 mModeCoverState = COVER_WILL_HIDE_AT_NEXT_FRAME; 1328 mController.setupOneShotPreviewListener(); 1329 } 1330 } 1331 1332 /** 1333 * Gets called when preview is started. 1334 */ 1335 public void onPreviewStarted() { 1336 Log.v(TAG, "onPreviewStarted"); 1337 if (mModeCoverState == COVER_SHOWN) { 1338 mModeCoverState = COVER_WILL_HIDE_AT_NEXT_TEXTURE_UPDATE; 1339 } 1340 enableModeOptions(); 1341 } 1342 1343 /** 1344 * Gets notified when next preview frame comes in. 1345 */ 1346 public void onNewPreviewFrame() { 1347 Log.v(TAG, "onNewPreviewFrame"); 1348 CameraPerformanceTracker.onEvent(CameraPerformanceTracker.FIRST_PREVIEW_FRAME); 1349 hideModeCover(); 1350 } 1351 1352 @Override 1353 public void onShutterButtonClick() { 1354 /* 1355 * Set the mode options toggle unclickable, generally 1356 * throughout the app, whenever the shutter button is clicked. 1357 * 1358 * This could be done in the OnShutterButtonListener of the 1359 * ModeOptionsOverlay, but since it is very important that we 1360 * can clearly see when the toggle becomes clickable again, 1361 * keep all of that logic at this level. 1362 */ 1363 // disableModeOptions(); 1364 } 1365 1366 @Override 1367 public void onShutterCoordinate(TouchCoordinate coord) { 1368 // Do nothing. 1369 } 1370 1371 @Override 1372 public void onShutterButtonFocus(boolean pressed) { 1373 // noop 1374 } 1375 1376 @Override 1377 public void onShutterButtonLongPressed() { 1378 // noop 1379 } 1380 1381 /** 1382 * Set the mode options toggle clickable. 1383 */ 1384 public void enableModeOptions() { 1385 /* 1386 * For modules using camera 1 api, this gets called in 1387 * onSurfaceTextureUpdated whenever the preview gets stopped and 1388 * started after each capture. This also takes care of the 1389 * case where the mode options might be unclickable when we 1390 * switch modes 1391 * 1392 * For modules using camera 2 api, they're required to call this 1393 * method when a capture is "completed". Unfortunately this differs 1394 * per module implementation. 1395 */ 1396 if (!mDisableAllUserInteractions) { 1397 mModeOptionsOverlay.setToggleClickable(true); 1398 } 1399 } 1400 1401 /** 1402 * Set the mode options toggle not clickable. 1403 */ 1404 public void disableModeOptions() { 1405 mModeOptionsOverlay.setToggleClickable(false); 1406 } 1407 1408 public void setDisableAllUserInteractions(boolean disable) { 1409 if (disable) { 1410 disableModeOptions(); 1411 setShutterButtonEnabled(false); 1412 setSwipeEnabled(false); 1413 mModeListView.hideAnimated(); 1414 } else { 1415 enableModeOptions(); 1416 setShutterButtonEnabled(true); 1417 setSwipeEnabled(true); 1418 } 1419 mDisableAllUserInteractions = disable; 1420 } 1421 1422 @Override 1423 public void onModeButtonPressed(int modeIndex) { 1424 // TODO: Make CameraActivity listen to ModeListView's events. 1425 int pressedModuleId = mController.getModuleId(modeIndex); 1426 int currentModuleId = mController.getCurrentModuleIndex(); 1427 if (pressedModuleId != currentModuleId) { 1428 hideCaptureIndicator(); 1429 } 1430 } 1431 1432 /** 1433 * Gets called when a mode is selected from {@link com.android.camera.ui.ModeListView} 1434 * 1435 * @param modeIndex mode index of the selected mode 1436 */ 1437 @Override 1438 public void onModeSelected(int modeIndex) { 1439 mHideCoverRunnable = new Runnable() { 1440 @Override 1441 public void run() { 1442 mModeListView.startModeSelectionAnimation(); 1443 } 1444 }; 1445 mShutterButton.setAlpha(ShutterButton.ALPHA_WHEN_ENABLED); 1446 mModeCoverState = COVER_SHOWN; 1447 1448 int lastIndex = mController.getCurrentModuleIndex(); 1449 // Actual mode teardown / new mode initialization happens here 1450 mController.onModeSelected(modeIndex); 1451 int currentIndex = mController.getCurrentModuleIndex(); 1452 1453 if (lastIndex == currentIndex) { 1454 hideModeCover(); 1455 } 1456 1457 updateModeSpecificUIColors(); 1458 } 1459 1460 private void updateModeSpecificUIColors() { 1461 setBottomBarColorsForModeIndex(mController.getCurrentModuleIndex()); 1462 } 1463 1464 @Override 1465 public void onSettingsSelected() { 1466 mController.getSettingsManager().set(SettingsManager.SCOPE_GLOBAL, 1467 Keys.KEY_SHOULD_SHOW_SETTINGS_BUTTON_CLING, false); 1468 mModeListView.setShouldShowSettingsCling(false); 1469 mController.onSettingsSelected(); 1470 } 1471 1472 @Override 1473 public int getCurrentModeIndex() { 1474 return mController.getCurrentModuleIndex(); 1475 } 1476 1477 /********************** Capture animation **********************/ 1478 /* TODO: This session is subject to UX changes. In addition to the generic 1479 flash animation and post capture animation, consider designating a parameter 1480 for specifying the type of animation, as well as an animation finished listener 1481 so that modules can have more knowledge of the status of the animation. */ 1482 1483 /** 1484 * Starts the capture indicator pop-out animation. 1485 * 1486 * @param accessibilityString An accessibility String to be announced during the peek animation. 1487 */ 1488 public void startCaptureIndicatorRevealAnimation(String accessibilityString) { 1489 if (mFilmstripLayout.getVisibility() == View.VISIBLE) { 1490 return; 1491 } 1492 mRoundedThumbnailView.startRevealThumbnailAnimation(accessibilityString); 1493 } 1494 1495 /** 1496 * Updates the thumbnail image in the capture indicator. 1497 * 1498 * @param thumbnailBitmap The thumbnail image to be shown. 1499 */ 1500 public void updateCaptureIndicatorThumbnail(Bitmap thumbnailBitmap, int rotation) { 1501 mRoundedThumbnailView.setThumbnail(thumbnailBitmap); 1502 mRoundedThumbnailView.setRotation(rotation); 1503 } 1504 1505 /** 1506 * Hides the capture indicator. 1507 */ 1508 public void hideCaptureIndicator() { 1509 mRoundedThumbnailView.hideThumbnail(); 1510 } 1511 1512 /** 1513 * Starts the flash animation. 1514 */ 1515 public void startFlashAnimation(boolean shortFlash) { 1516 mCaptureOverlay.startFlashAnimation(shortFlash); 1517 } 1518 1519 /** 1520 * Cancels the pre-capture animation. 1521 */ 1522 public void cancelPreCaptureAnimation() { 1523 mAnimationManager.cancelAnimations(); 1524 } 1525 1526 /** 1527 * Cancels the post-capture animation. 1528 */ 1529 public void cancelPostCaptureAnimation() { 1530 mAnimationManager.cancelAnimations(); 1531 } 1532 1533 public FilmstripContentPanel getFilmstripContentPanel() { 1534 return mFilmstripPanel; 1535 } 1536 1537 /** 1538 * @return The {@link com.android.camera.app.CameraAppUI.BottomPanel} on the 1539 * bottom of the filmstrip. 1540 */ 1541 public BottomPanel getFilmstripBottomControls() { 1542 return mFilmstripBottomControls; 1543 } 1544 1545 public void showBottomControls() { 1546 mFilmstripBottomControls.show(); 1547 } 1548 1549 public void hideBottomControls() { 1550 mFilmstripBottomControls.hide(); 1551 } 1552 1553 /** 1554 * @param listener The listener for bottom controls. 1555 */ 1556 public void setFilmstripBottomControlsListener(BottomPanel.Listener listener) { 1557 mFilmstripBottomControls.setListener(listener); 1558 } 1559 1560 /***************************SurfaceTexture Api and Listener*********************************/ 1561 1562 /** 1563 * Return the shared surface texture. 1564 */ 1565 public SurfaceTexture getSurfaceTexture() { 1566 return mSurface; 1567 } 1568 1569 /** 1570 * Return the shared {@link android.graphics.SurfaceTexture}'s width. 1571 */ 1572 public int getSurfaceWidth() { 1573 return mSurfaceWidth; 1574 } 1575 1576 /** 1577 * Return the shared {@link android.graphics.SurfaceTexture}'s height. 1578 */ 1579 public int getSurfaceHeight() { 1580 return mSurfaceHeight; 1581 } 1582 1583 @Override 1584 public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) { 1585 mSurface = surface; 1586 mSurfaceWidth = width; 1587 mSurfaceHeight = height; 1588 Log.v(TAG, "SurfaceTexture is available"); 1589 if (mPreviewStatusListener != null) { 1590 mPreviewStatusListener.onSurfaceTextureAvailable(surface, width, height); 1591 } 1592 enableModeOptions(); 1593 } 1594 1595 @Override 1596 public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) { 1597 mSurface = surface; 1598 mSurfaceWidth = width; 1599 mSurfaceHeight = height; 1600 if (mPreviewStatusListener != null) { 1601 mPreviewStatusListener.onSurfaceTextureSizeChanged(surface, width, height); 1602 } 1603 } 1604 1605 @Override 1606 public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) { 1607 mSurface = null; 1608 Log.v(TAG, "SurfaceTexture is destroyed"); 1609 if (mPreviewStatusListener != null) { 1610 return mPreviewStatusListener.onSurfaceTextureDestroyed(surface); 1611 } 1612 return false; 1613 } 1614 1615 @Override 1616 public void onSurfaceTextureUpdated(SurfaceTexture surface) { 1617 mSurface = surface; 1618 if (mPreviewStatusListener != null) { 1619 mPreviewStatusListener.onSurfaceTextureUpdated(surface); 1620 } 1621 if (mModeCoverState == COVER_WILL_HIDE_AT_NEXT_TEXTURE_UPDATE) { 1622 Log.v(TAG, "hiding cover via onSurfaceTextureUpdated"); 1623 CameraPerformanceTracker.onEvent(CameraPerformanceTracker.FIRST_PREVIEW_FRAME); 1624 hideModeCover(); 1625 } 1626 } 1627 1628 /****************************Grid lines api ******************************/ 1629 1630 /** 1631 * Show a set of evenly spaced lines over the preview. The number 1632 * of lines horizontally and vertically is determined by 1633 * {@link com.android.camera.ui.GridLines}. 1634 */ 1635 public void showGridLines() { 1636 if (mGridLines != null) { 1637 mGridLines.setVisibility(View.VISIBLE); 1638 } 1639 } 1640 1641 /** 1642 * Hide the set of evenly spaced grid lines overlaying the preview. 1643 */ 1644 public void hideGridLines() { 1645 if (mGridLines != null) { 1646 mGridLines.setVisibility(View.INVISIBLE); 1647 } 1648 } 1649 1650 /** 1651 * Return a callback which shows or hide the preview grid lines 1652 * depending on whether the grid lines setting is set on. 1653 */ 1654 public ButtonManager.ButtonCallback getGridLinesCallback() { 1655 return new ButtonManager.ButtonCallback() { 1656 @Override 1657 public void onStateChanged(int state) { 1658 if (!mController.isPaused()) { 1659 if (Keys.areGridLinesOn(mController.getSettingsManager())) { 1660 showGridLines(); 1661 } else { 1662 hideGridLines(); 1663 } 1664 } 1665 } 1666 }; 1667 } 1668 1669 /***************************Mode options api *****************************/ 1670 1671 /** 1672 * Set the mode options visible. 1673 */ 1674 public void showModeOptions() { 1675 /* Make mode options clickable. */ 1676 enableModeOptions(); 1677 mModeOptionsOverlay.setVisibility(View.VISIBLE); 1678 } 1679 1680 /** 1681 * Set the mode options invisible. This is necessary for modes 1682 * that don't show a bottom bar for the capture UI. 1683 */ 1684 public void hideModeOptions() { 1685 mModeOptionsOverlay.setVisibility(View.INVISIBLE); 1686 } 1687 1688 /****************************Bottom bar api ******************************/ 1689 1690 /** 1691 * Sets up the bottom bar and mode options with the correct 1692 * shutter button and visibility based on the current module. 1693 */ 1694 public void resetBottomControls(ModuleController module, int moduleIndex) { 1695 if (areBottomControlsUsed(module)) { 1696 setBottomBarShutterIcon(moduleIndex); 1697 mCaptureLayoutHelper.setShowBottomBar(true); 1698 } else { 1699 mCaptureLayoutHelper.setShowBottomBar(false); 1700 } 1701 } 1702 1703 /** 1704 * Show or hide the mode options and bottom bar, based on 1705 * whether the current module is using the bottom bar. Returns 1706 * whether the mode options and bottom bar are used. 1707 */ 1708 private boolean areBottomControlsUsed(ModuleController module) { 1709 if (module.isUsingBottomBar()) { 1710 showBottomBar(); 1711 showModeOptions(); 1712 return true; 1713 } else { 1714 hideBottomBar(); 1715 hideModeOptions(); 1716 return false; 1717 } 1718 } 1719 1720 /** 1721 * Set the bottom bar visible. 1722 */ 1723 public void showBottomBar() { 1724 mBottomBar.setVisibility(View.VISIBLE); 1725 } 1726 1727 /** 1728 * Set the bottom bar invisible. 1729 */ 1730 public void hideBottomBar() { 1731 mBottomBar.setVisibility(View.INVISIBLE); 1732 } 1733 1734 /** 1735 * Sets the color of the bottom bar. 1736 */ 1737 public void setBottomBarColor(int colorId) { 1738 mBottomBar.setBackgroundColor(colorId); 1739 } 1740 1741 /** 1742 * Sets the pressed color of the bottom bar for a camera mode index. 1743 */ 1744 public void setBottomBarColorsForModeIndex(int index) { 1745 mBottomBar.setColorsForModeIndex(index); 1746 } 1747 1748 /** 1749 * Sets the shutter button icon on the bottom bar, based on 1750 * the mode index. 1751 */ 1752 public void setBottomBarShutterIcon(int modeIndex) { 1753 int shutterIconId = CameraUtil.getCameraShutterIconId(modeIndex, 1754 mController.getAndroidContext()); 1755 mBottomBar.setShutterButtonIcon(shutterIconId); 1756 } 1757 1758 public void animateBottomBarToVideoStop(int shutterIconId) { 1759 mBottomBar.animateToVideoStop(shutterIconId); 1760 } 1761 1762 public void animateBottomBarToFullSize(int shutterIconId) { 1763 mBottomBar.animateToFullSize(shutterIconId); 1764 } 1765 1766 public void setShutterButtonEnabled(final boolean enabled) { 1767 if (!mDisableAllUserInteractions) { 1768 mBottomBar.post(new Runnable() { 1769 @Override 1770 public void run() { 1771 mBottomBar.setShutterButtonEnabled(enabled); 1772 } 1773 }); 1774 } 1775 } 1776 1777 public void setShutterButtonImportantToA11y(boolean important) { 1778 mBottomBar.setShutterButtonImportantToA11y(important); 1779 } 1780 1781 public boolean isShutterButtonEnabled() { 1782 return mBottomBar.isShutterButtonEnabled(); 1783 } 1784 1785 public void setIndicatorBottomBarWrapperVisible(boolean visible) { 1786 mStickyBottomCaptureLayout.setVisibility(visible ? View.VISIBLE : View.INVISIBLE); 1787 } 1788 1789 /** 1790 * Set the visibility of the bottom bar. 1791 */ 1792 // TODO: needed for when panorama is managed by the generic module ui. 1793 public void setBottomBarVisible(boolean visible) { 1794 mBottomBar.setVisibility(visible ? View.VISIBLE : View.INVISIBLE); 1795 } 1796 1797 /** 1798 * Add a {@link #ShutterButton.OnShutterButtonListener} to the shutter button. 1799 */ 1800 public void addShutterListener(ShutterButton.OnShutterButtonListener listener) { 1801 mShutterButton.addOnShutterButtonListener(listener); 1802 } 1803 1804 /** 1805 * Remove a {@link #ShutterButton.OnShutterButtonListener} from the shutter button. 1806 */ 1807 public void removeShutterListener(ShutterButton.OnShutterButtonListener listener) { 1808 mShutterButton.removeOnShutterButtonListener(listener); 1809 } 1810 1811 /** 1812 * Performs a transition to the capture layout of the bottom bar. 1813 */ 1814 public void transitionToCapture() { 1815 ModuleController moduleController = mController.getCurrentModuleController(); 1816 applyModuleSpecs(moduleController.getHardwareSpec(), 1817 moduleController.getBottomBarSpec()); 1818 mBottomBar.transitionToCapture(); 1819 showModeOptions(); 1820 } 1821 1822 /** 1823 * Displays the Cancel button instead of the capture button. 1824 */ 1825 public void transitionToCancel() { 1826 ModuleController moduleController = mController.getCurrentModuleController(); 1827 applyModuleSpecs(moduleController.getHardwareSpec(), 1828 moduleController.getBottomBarSpec()); 1829 mBottomBar.transitionToCancel(); 1830 hideModeOptions(); 1831 } 1832 1833 /** 1834 * Performs a transition to the global intent layout. 1835 */ 1836 public void transitionToIntentCaptureLayout() { 1837 ModuleController moduleController = mController.getCurrentModuleController(); 1838 applyModuleSpecs(moduleController.getHardwareSpec(), 1839 moduleController.getBottomBarSpec()); 1840 mBottomBar.transitionToIntentCaptureLayout(); 1841 showModeOptions(); 1842 } 1843 1844 /** 1845 * Performs a transition to the global intent review layout. 1846 */ 1847 public void transitionToIntentReviewLayout() { 1848 ModuleController moduleController = mController.getCurrentModuleController(); 1849 applyModuleSpecs(moduleController.getHardwareSpec(), 1850 moduleController.getBottomBarSpec()); 1851 mBottomBar.transitionToIntentReviewLayout(); 1852 hideModeOptions(); 1853 } 1854 1855 /** 1856 * @return whether UI is in intent review mode 1857 */ 1858 public boolean isInIntentReview() { 1859 return mBottomBar.isInIntentReview(); 1860 } 1861 1862 @Override 1863 public void onSettingChanged(SettingsManager settingsManager, String key) { 1864 // Update the mode options based on the hardware spec, 1865 // when hdr changes to prevent flash from getting out of sync. 1866 if (key.equals(Keys.KEY_CAMERA_HDR)) { 1867 ModuleController moduleController = mController.getCurrentModuleController(); 1868 applyModuleSpecs(moduleController.getHardwareSpec(), 1869 moduleController.getBottomBarSpec()); 1870 } 1871 } 1872 1873 /** 1874 * Applies a {@link com.android.camera.CameraAppUI.BottomBarUISpec} 1875 * to the bottom bar mode options based on limitations from a 1876 * {@link com.android.camera.hardware.HardwareSpec}. 1877 * 1878 * Options not supported by the hardware are either hidden 1879 * or disabled, depending on the option. 1880 * 1881 * Otherwise, the option is fully enabled and clickable. 1882 */ 1883 public void applyModuleSpecs(final HardwareSpec hardwareSpec, 1884 final BottomBarUISpec bottomBarSpec) { 1885 if (hardwareSpec == null || bottomBarSpec == null) { 1886 return; 1887 } 1888 1889 ButtonManager buttonManager = mController.getButtonManager(); 1890 SettingsManager settingsManager = mController.getSettingsManager(); 1891 1892 buttonManager.setToInitialState(); 1893 1894 /** Standard mode options */ 1895 if (mController.getCameraProvider().getNumberOfCameras() > 1 && 1896 hardwareSpec.isFrontCameraSupported()) { 1897 if (bottomBarSpec.enableCamera) { 1898 buttonManager.initializeButton(ButtonManager.BUTTON_CAMERA, 1899 bottomBarSpec.cameraCallback); 1900 } else { 1901 buttonManager.disableButton(ButtonManager.BUTTON_CAMERA); 1902 } 1903 } else { 1904 // Hide camera icon if front camera not available. 1905 buttonManager.hideButton(ButtonManager.BUTTON_CAMERA); 1906 } 1907 1908 if (bottomBarSpec.hideFlash) { 1909 // Hide both flash and torch button in flash disable logic 1910 buttonManager.hideButton(ButtonManager.BUTTON_FLASH); 1911 buttonManager.hideButton(ButtonManager.BUTTON_TORCH); 1912 } else { 1913 if (hardwareSpec.isFlashSupported()) { 1914 if (bottomBarSpec.enableFlash) { 1915 buttonManager.initializeButton(ButtonManager.BUTTON_FLASH, 1916 bottomBarSpec.flashCallback); 1917 } else if (bottomBarSpec.enableTorchFlash) { 1918 buttonManager.initializeButton(ButtonManager.BUTTON_TORCH, 1919 bottomBarSpec.flashCallback); 1920 } else if (bottomBarSpec.enableHdrPlusFlash) { 1921 buttonManager.initializeButton(ButtonManager.BUTTON_HDR_PLUS_FLASH, 1922 bottomBarSpec.flashCallback); 1923 } else { 1924 // Hide both flash and torch button in flash disable logic 1925 buttonManager.disableButton(ButtonManager.BUTTON_FLASH); 1926 buttonManager.disableButton(ButtonManager.BUTTON_TORCH); 1927 } 1928 } else { 1929 // Disable both flash and torch icon if not supported 1930 // by the chosen camera hardware. 1931 buttonManager.disableButton(ButtonManager.BUTTON_FLASH); 1932 buttonManager.disableButton(ButtonManager.BUTTON_TORCH); 1933 } 1934 } 1935 1936 if (bottomBarSpec.hideHdr || mIsCaptureIntent) { 1937 // Force hide hdr or hdr plus icon. 1938 buttonManager.hideButton(ButtonManager.BUTTON_HDR_PLUS); 1939 } else { 1940 if (hardwareSpec.isHdrPlusSupported()) { 1941 if (bottomBarSpec.enableHdr && Keys.isCameraBackFacing(settingsManager, 1942 mController.getModuleScope())) { 1943 buttonManager.initializeButton(ButtonManager.BUTTON_HDR_PLUS, 1944 bottomBarSpec.hdrCallback); 1945 } else { 1946 buttonManager.disableButton(ButtonManager.BUTTON_HDR_PLUS); 1947 } 1948 } else if (hardwareSpec.isHdrSupported()) { 1949 if (bottomBarSpec.enableHdr && Keys.isCameraBackFacing(settingsManager, 1950 mController.getModuleScope())) { 1951 buttonManager.initializeButton(ButtonManager.BUTTON_HDR, 1952 bottomBarSpec.hdrCallback); 1953 } else { 1954 buttonManager.disableButton(ButtonManager.BUTTON_HDR); 1955 } 1956 } else { 1957 // Hide hdr plus or hdr icon if neither are supported. 1958 buttonManager.hideButton(ButtonManager.BUTTON_HDR_PLUS); 1959 } 1960 } 1961 1962 if (bottomBarSpec.hideGridLines) { 1963 // Force hide grid lines icon. 1964 buttonManager.hideButton(ButtonManager.BUTTON_GRID_LINES); 1965 hideGridLines(); 1966 } else { 1967 if (bottomBarSpec.enableGridLines) { 1968 buttonManager.initializeButton(ButtonManager.BUTTON_GRID_LINES, 1969 bottomBarSpec.gridLinesCallback != null ? 1970 bottomBarSpec.gridLinesCallback : getGridLinesCallback() 1971 ); 1972 } else { 1973 buttonManager.disableButton(ButtonManager.BUTTON_GRID_LINES); 1974 hideGridLines(); 1975 } 1976 } 1977 1978 if (bottomBarSpec.enableSelfTimer) { 1979 buttonManager.initializeButton(ButtonManager.BUTTON_COUNTDOWN, null); 1980 } else { 1981 if (bottomBarSpec.showSelfTimer) { 1982 buttonManager.disableButton(ButtonManager.BUTTON_COUNTDOWN); 1983 } else { 1984 buttonManager.hideButton(ButtonManager.BUTTON_COUNTDOWN); 1985 } 1986 } 1987 1988 if (bottomBarSpec.enablePanoOrientation 1989 && PhotoSphereHelper.getPanoramaOrientationOptionArrayId() > 0) { 1990 buttonManager.initializePanoOrientationButtons(bottomBarSpec.panoOrientationCallback); 1991 } 1992 1993 boolean enableExposureCompensation = bottomBarSpec.enableExposureCompensation && 1994 !(bottomBarSpec.minExposureCompensation == 0 && bottomBarSpec.maxExposureCompensation == 0) && 1995 mController.getSettingsManager().getBoolean(SettingsManager.SCOPE_GLOBAL, 1996 Keys.KEY_EXPOSURE_COMPENSATION_ENABLED); 1997 if (enableExposureCompensation) { 1998 buttonManager.initializePushButton(ButtonManager.BUTTON_EXPOSURE_COMPENSATION, null); 1999 buttonManager.setExposureCompensationParameters( 2000 bottomBarSpec.minExposureCompensation, 2001 bottomBarSpec.maxExposureCompensation, 2002 bottomBarSpec.exposureCompensationStep); 2003 2004 buttonManager.setExposureCompensationCallback( 2005 bottomBarSpec.exposureCompensationSetCallback); 2006 buttonManager.updateExposureButtons(); 2007 } else { 2008 buttonManager.hideButton(ButtonManager.BUTTON_EXPOSURE_COMPENSATION); 2009 buttonManager.setExposureCompensationCallback(null); 2010 } 2011 2012 /** Intent UI */ 2013 if (bottomBarSpec.showCancel) { 2014 buttonManager.initializePushButton(ButtonManager.BUTTON_CANCEL, 2015 bottomBarSpec.cancelCallback); 2016 } 2017 if (bottomBarSpec.showDone) { 2018 buttonManager.initializePushButton(ButtonManager.BUTTON_DONE, 2019 bottomBarSpec.doneCallback); 2020 } 2021 if (bottomBarSpec.showRetake) { 2022 buttonManager.initializePushButton(ButtonManager.BUTTON_RETAKE, 2023 bottomBarSpec.retakeCallback); 2024 } 2025 if (bottomBarSpec.showReview) { 2026 buttonManager.initializePushButton(ButtonManager.BUTTON_REVIEW, 2027 bottomBarSpec.reviewCallback, 2028 R.drawable.ic_play); 2029 } 2030 } 2031 2032 /** 2033 * Shows the given tutorial on the screen. 2034 */ 2035 public void showTutorial(AbstractTutorialOverlay tutorial, LayoutInflater inflater) { 2036 tutorial.show(mTutorialsPlaceHolderWrapper, inflater); 2037 } 2038 2039 /***************************Filmstrip api *****************************/ 2040 2041 public void showFilmstrip() { 2042 mModeListView.onBackPressed(); 2043 mFilmstripLayout.showFilmstrip(); 2044 } 2045 2046 public void hideFilmstrip() { 2047 mFilmstripLayout.hideFilmstrip(); 2048 } 2049} 2050