NavigationBarFragment.java revision f4c989962cd8accf027b1f10d4cbd51249886b33
1/* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file 5 * except in compliance with the License. You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software distributed under the 10 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 11 * KIND, either express or implied. See the License for the specific language governing 12 * permissions and limitations under the License. 13 */ 14 15package com.android.systemui.statusbar.phone; 16 17import static android.app.StatusBarManager.NAVIGATION_HINT_BACK_ALT; 18import static android.app.StatusBarManager.NAVIGATION_HINT_IME_SHOWN; 19import static android.app.StatusBarManager.WINDOW_STATE_SHOWING; 20import static android.app.StatusBarManager.windowStateToString; 21 22import static com.android.internal.view.RotationPolicy.NATURAL_ROTATION; 23 24import static com.android.systemui.shared.system.NavigationBarCompat.InteractionType; 25import static com.android.systemui.statusbar.phone.BarTransitions.MODE_SEMI_TRANSPARENT; 26import static com.android.systemui.statusbar.phone.StatusBar.DEBUG_WINDOW_STATE; 27import static com.android.systemui.statusbar.phone.StatusBar.dumpBarTransitions; 28import static com.android.systemui.OverviewProxyService.OverviewProxyListener; 29 30import android.accessibilityservice.AccessibilityServiceInfo; 31import android.animation.Animator; 32import android.animation.AnimatorListenerAdapter; 33import android.animation.ObjectAnimator; 34import android.annotation.IdRes; 35import android.annotation.Nullable; 36import android.app.ActivityManager; 37import android.app.ActivityManagerNative; 38import android.app.Fragment; 39import android.app.IActivityManager; 40import android.app.StatusBarManager; 41import android.content.BroadcastReceiver; 42import android.content.ContentResolver; 43import android.content.Context; 44import android.content.Intent; 45import android.content.IntentFilter; 46import android.content.res.Configuration; 47import android.database.ContentObserver; 48import android.graphics.PixelFormat; 49import android.graphics.Rect; 50import android.graphics.drawable.AnimatedVectorDrawable; 51import android.inputmethodservice.InputMethodService; 52import android.os.Binder; 53import android.os.Bundle; 54import android.os.Handler; 55import android.os.IBinder; 56import android.os.Message; 57import android.os.RemoteException; 58import android.os.UserHandle; 59import android.provider.Settings; 60import android.support.annotation.VisibleForTesting; 61import android.telecom.TelecomManager; 62import android.text.TextUtils; 63import android.util.Log; 64import android.view.IRotationWatcher.Stub; 65import android.view.KeyEvent; 66import android.view.LayoutInflater; 67import android.view.MotionEvent; 68import android.view.Surface; 69import android.view.View; 70import android.view.ViewGroup; 71import android.view.WindowManager; 72import android.view.WindowManager.LayoutParams; 73import android.view.WindowManagerGlobal; 74import android.view.accessibility.AccessibilityEvent; 75import android.view.accessibility.AccessibilityManager; 76import android.view.accessibility.AccessibilityManager.AccessibilityServicesStateChangeListener; 77 78import com.android.internal.logging.MetricsLogger; 79import com.android.internal.logging.nano.MetricsProto.MetricsEvent; 80import com.android.internal.util.LatencyTracker; 81import com.android.systemui.Dependency; 82import com.android.systemui.Interpolators; 83import com.android.systemui.OverviewProxyService; 84import com.android.systemui.R; 85import com.android.systemui.SysUiServiceProvider; 86import com.android.systemui.assist.AssistManager; 87import com.android.systemui.fragments.FragmentHostManager; 88import com.android.systemui.fragments.FragmentHostManager.FragmentListener; 89import com.android.systemui.recents.Recents; 90import com.android.systemui.recents.misc.SysUiTaskStackChangeListener; 91import com.android.systemui.shared.system.ActivityManagerWrapper; 92import com.android.systemui.stackdivider.Divider; 93import com.android.systemui.statusbar.CommandQueue; 94import com.android.systemui.statusbar.CommandQueue.Callbacks; 95import com.android.systemui.statusbar.policy.AccessibilityManagerWrapper; 96import com.android.systemui.statusbar.policy.KeyButtonDrawable; 97import com.android.systemui.statusbar.policy.KeyButtonView; 98import com.android.systemui.statusbar.policy.RotationLockController; 99import com.android.systemui.statusbar.stack.StackStateAnimator; 100 101import java.io.FileDescriptor; 102import java.io.PrintWriter; 103import java.util.List; 104import java.util.Locale; 105import java.util.Optional; 106 107/** 108 * Fragment containing the NavigationBarFragment. Contains logic for what happens 109 * on clicks and view states of the nav bar. 110 */ 111public class NavigationBarFragment extends Fragment implements Callbacks { 112 113 public static final String TAG = "NavigationBar"; 114 private static final boolean DEBUG = false; 115 private static final boolean DEBUG_ROTATION = true; 116 private static final String EXTRA_DISABLE_STATE = "disabled_state"; 117 private static final String EXTRA_DISABLE2_STATE = "disabled2_state"; 118 119 private final static int BUTTON_FADE_IN_OUT_DURATION_MS = 100; 120 private final static int NAVBAR_HIDDEN_PENDING_ICON_TIMEOUT_MS = 20000; 121 122 private static final int NUM_ACCEPTED_ROTATION_SUGGESTIONS_FOR_INTRODUCTION = 3; 123 124 /** Allow some time inbetween the long press for back and recents. */ 125 private static final int LOCK_TO_APP_GESTURE_TOLERENCE = 200; 126 127 protected NavigationBarView mNavigationBarView = null; 128 protected AssistManager mAssistManager; 129 130 private int mNavigationBarWindowState = WINDOW_STATE_SHOWING; 131 132 private int mNavigationIconHints = 0; 133 private int mNavigationBarMode; 134 private boolean mAccessibilityFeedbackEnabled; 135 private AccessibilityManager mAccessibilityManager; 136 private MagnificationContentObserver mMagnificationObserver; 137 private ContentResolver mContentResolver; 138 private final MetricsLogger mMetricsLogger = Dependency.get(MetricsLogger.class); 139 140 private int mDisabledFlags1; 141 private int mDisabledFlags2; 142 private StatusBar mStatusBar; 143 private Recents mRecents; 144 private Divider mDivider; 145 private WindowManager mWindowManager; 146 private CommandQueue mCommandQueue; 147 private long mLastLockToAppLongPress; 148 149 private Locale mLocale; 150 private int mLayoutDirection; 151 152 private int mSystemUiVisibility; 153 private LightBarController mLightBarController; 154 155 private OverviewProxyService mOverviewProxyService; 156 157 public boolean mHomeBlockedThisTouch; 158 159 private int mLastRotationSuggestion; 160 private boolean mPendingRotationSuggestion; 161 private boolean mHoveringRotationSuggestion; 162 private RotationLockController mRotationLockController; 163 private TaskStackListenerImpl mTaskStackListener; 164 165 private final Runnable mRemoveRotationProposal = () -> setRotateSuggestionButtonState(false); 166 private final Runnable mCancelPendingRotationProposal = 167 () -> mPendingRotationSuggestion = false; 168 private Animator mRotateHideAnimator; 169 private ViewRippler mViewRippler = new ViewRippler(); 170 171 private final OverviewProxyListener mOverviewProxyListener = new OverviewProxyListener() { 172 @Override 173 public void onConnectionChanged(boolean isConnected) { 174 mNavigationBarView.updateStates(); 175 updateScreenPinningGestures(); 176 } 177 178 @Override 179 public void onQuickStepStarted() { 180 // Use navbar dragging as a signal to hide the rotate button 181 setRotateSuggestionButtonState(false); 182 } 183 184 @Override 185 public void onInteractionFlagsChanged(@InteractionType int flags) { 186 mNavigationBarView.updateStates(); 187 updateScreenPinningGestures(); 188 } 189 }; 190 191 // ----- Fragment Lifecycle Callbacks ----- 192 193 @Override 194 public void onCreate(@Nullable Bundle savedInstanceState) { 195 super.onCreate(savedInstanceState); 196 mCommandQueue = SysUiServiceProvider.getComponent(getContext(), CommandQueue.class); 197 mCommandQueue.addCallbacks(this); 198 mStatusBar = SysUiServiceProvider.getComponent(getContext(), StatusBar.class); 199 mRecents = SysUiServiceProvider.getComponent(getContext(), Recents.class); 200 mDivider = SysUiServiceProvider.getComponent(getContext(), Divider.class); 201 mWindowManager = getContext().getSystemService(WindowManager.class); 202 mAccessibilityManager = getContext().getSystemService(AccessibilityManager.class); 203 Dependency.get(AccessibilityManagerWrapper.class).addCallback( 204 mAccessibilityListener); 205 mContentResolver = getContext().getContentResolver(); 206 mMagnificationObserver = new MagnificationContentObserver( 207 getContext().getMainThreadHandler()); 208 mContentResolver.registerContentObserver(Settings.Secure.getUriFor( 209 Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED), false, 210 mMagnificationObserver, UserHandle.USER_ALL); 211 212 if (savedInstanceState != null) { 213 mDisabledFlags1 = savedInstanceState.getInt(EXTRA_DISABLE_STATE, 0); 214 mDisabledFlags2 = savedInstanceState.getInt(EXTRA_DISABLE2_STATE, 0); 215 } 216 mAssistManager = Dependency.get(AssistManager.class); 217 mOverviewProxyService = Dependency.get(OverviewProxyService.class); 218 219 try { 220 WindowManagerGlobal.getWindowManagerService() 221 .watchRotation(mRotationWatcher, getContext().getDisplay().getDisplayId()); 222 } catch (RemoteException e) { 223 throw e.rethrowFromSystemServer(); 224 } 225 226 mRotationLockController = Dependency.get(RotationLockController.class); 227 228 // Reset user rotation pref to match that of the WindowManager if starting in locked mode 229 // This will automatically happen when switching from auto-rotate to locked mode 230 if (mRotationLockController.isRotationLocked()) { 231 final int winRotation = mWindowManager.getDefaultDisplay().getRotation(); 232 mRotationLockController.setRotationLockedAtAngle(true, winRotation); 233 } 234 235 // Register the task stack listener 236 mTaskStackListener = new TaskStackListenerImpl(); 237 ActivityManagerWrapper.getInstance().registerTaskStackListener(mTaskStackListener); 238 } 239 240 @Override 241 public void onDestroy() { 242 super.onDestroy(); 243 mCommandQueue.removeCallbacks(this); 244 Dependency.get(AccessibilityManagerWrapper.class).removeCallback( 245 mAccessibilityListener); 246 mContentResolver.unregisterContentObserver(mMagnificationObserver); 247 try { 248 WindowManagerGlobal.getWindowManagerService() 249 .removeRotationWatcher(mRotationWatcher); 250 } catch (RemoteException e) { 251 throw e.rethrowFromSystemServer(); 252 } 253 254 // Unregister the task stack listener 255 ActivityManagerWrapper.getInstance().unregisterTaskStackListener(mTaskStackListener); 256 } 257 258 @Override 259 public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, 260 Bundle savedInstanceState) { 261 return inflater.inflate(R.layout.navigation_bar, container, false); 262 } 263 264 @Override 265 public void onViewCreated(View view, @Nullable Bundle savedInstanceState) { 266 super.onViewCreated(view, savedInstanceState); 267 mNavigationBarView = (NavigationBarView) view; 268 269 mNavigationBarView.setDisabledFlags(mDisabledFlags1); 270 mNavigationBarView.setComponents(mRecents, mDivider, mStatusBar.getPanel()); 271 mNavigationBarView.setOnVerticalChangedListener(this::onVerticalChanged); 272 mNavigationBarView.setOnTouchListener(this::onNavigationTouch); 273 if (savedInstanceState != null) { 274 mNavigationBarView.getLightTransitionsController().restoreState(savedInstanceState); 275 } 276 277 prepareNavigationBarView(); 278 checkNavBarModes(); 279 280 setDisabled2Flags(mDisabledFlags2); 281 282 IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_OFF); 283 filter.addAction(Intent.ACTION_SCREEN_ON); 284 getContext().registerReceiverAsUser(mBroadcastReceiver, UserHandle.ALL, filter, null, null); 285 notifyNavigationBarScreenOn(); 286 mOverviewProxyService.addCallback(mOverviewProxyListener); 287 } 288 289 @Override 290 public void onDestroyView() { 291 super.onDestroyView(); 292 mNavigationBarView.getLightTransitionsController().destroy(getContext()); 293 mOverviewProxyService.removeCallback(mOverviewProxyListener); 294 getContext().unregisterReceiver(mBroadcastReceiver); 295 } 296 297 @Override 298 public void onSaveInstanceState(Bundle outState) { 299 super.onSaveInstanceState(outState); 300 outState.putInt(EXTRA_DISABLE_STATE, mDisabledFlags1); 301 outState.putInt(EXTRA_DISABLE2_STATE, mDisabledFlags2); 302 if (mNavigationBarView != null) { 303 mNavigationBarView.getLightTransitionsController().saveState(outState); 304 } 305 } 306 307 @Override 308 public void onConfigurationChanged(Configuration newConfig) { 309 super.onConfigurationChanged(newConfig); 310 final Locale locale = getContext().getResources().getConfiguration().locale; 311 final int ld = TextUtils.getLayoutDirectionFromLocale(locale); 312 if (!locale.equals(mLocale) || ld != mLayoutDirection) { 313 if (DEBUG) { 314 Log.v(TAG, String.format( 315 "config changed locale/LD: %s (%d) -> %s (%d)", mLocale, mLayoutDirection, 316 locale, ld)); 317 } 318 mLocale = locale; 319 mLayoutDirection = ld; 320 refreshLayout(ld); 321 } 322 repositionNavigationBar(); 323 } 324 325 @Override 326 public void dump(String prefix, FileDescriptor fd, PrintWriter pw, String[] args) { 327 if (mNavigationBarView != null) { 328 pw.print(" mNavigationBarWindowState="); 329 pw.println(windowStateToString(mNavigationBarWindowState)); 330 pw.print(" mNavigationBarMode="); 331 pw.println(BarTransitions.modeToString(mNavigationBarMode)); 332 dumpBarTransitions(pw, "mNavigationBarView", mNavigationBarView.getBarTransitions()); 333 } 334 335 pw.print(" mNavigationBarView="); 336 if (mNavigationBarView == null) { 337 pw.println("null"); 338 } else { 339 mNavigationBarView.dump(fd, pw, args); 340 } 341 } 342 343 // ----- CommandQueue Callbacks ----- 344 345 @Override 346 public void setImeWindowStatus(IBinder token, int vis, int backDisposition, 347 boolean showImeSwitcher) { 348 boolean imeShown = (vis & InputMethodService.IME_VISIBLE) != 0; 349 int hints = mNavigationIconHints; 350 switch (backDisposition) { 351 case InputMethodService.BACK_DISPOSITION_DEFAULT: 352 case InputMethodService.BACK_DISPOSITION_WILL_NOT_DISMISS: 353 case InputMethodService.BACK_DISPOSITION_WILL_DISMISS: 354 if (imeShown) { 355 hints |= NAVIGATION_HINT_BACK_ALT; 356 } else { 357 hints &= ~NAVIGATION_HINT_BACK_ALT; 358 } 359 break; 360 case InputMethodService.BACK_DISPOSITION_ADJUST_NOTHING: 361 hints &= ~NAVIGATION_HINT_BACK_ALT; 362 break; 363 } 364 if (showImeSwitcher) { 365 hints |= NAVIGATION_HINT_IME_SHOWN; 366 } else { 367 hints &= ~NAVIGATION_HINT_IME_SHOWN; 368 } 369 if (hints == mNavigationIconHints) return; 370 371 mNavigationIconHints = hints; 372 373 if (mNavigationBarView != null) { 374 mNavigationBarView.setNavigationIconHints(hints); 375 } 376 mStatusBar.checkBarModes(); 377 } 378 379 @Override 380 public void topAppWindowChanged(boolean showMenu) { 381 if (mNavigationBarView != null) { 382 mNavigationBarView.setMenuVisibility(showMenu); 383 } 384 } 385 386 @Override 387 public void setWindowState(int window, int state) { 388 if (mNavigationBarView != null 389 && window == StatusBarManager.WINDOW_NAVIGATION_BAR 390 && mNavigationBarWindowState != state) { 391 mNavigationBarWindowState = state; 392 if (DEBUG_WINDOW_STATE) Log.d(TAG, "Navigation bar " + windowStateToString(state)); 393 394 // If the navbar is visible, show the rotate button if there's a pending suggestion 395 if (state == WINDOW_STATE_SHOWING && mPendingRotationSuggestion) { 396 showAndLogRotationSuggestion(); 397 } 398 } 399 } 400 401 @Override 402 public void onRotationProposal(final int rotation, boolean isValid) { 403 final int winRotation = mWindowManager.getDefaultDisplay().getRotation(); 404 final boolean rotateSuggestionsDisabled = hasDisable2RotateSuggestionFlag(mDisabledFlags2); 405 if (DEBUG_ROTATION) { 406 Log.v(TAG, "onRotationProposal proposedRotation=" + Surface.rotationToString(rotation) 407 + ", winRotation=" + Surface.rotationToString(winRotation) 408 + ", isValid=" + isValid + ", mNavBarWindowState=" 409 + StatusBarManager.windowStateToString(mNavigationBarWindowState) 410 + ", rotateSuggestionsDisabled=" + rotateSuggestionsDisabled 411 + ", isRotateButtonVisible=" + (mNavigationBarView == null ? "null" : 412 mNavigationBarView.isRotateButtonVisible())); 413 } 414 415 // Respect the disabled flag, no need for action as flag change callback will handle hiding 416 if (rotateSuggestionsDisabled) return; 417 418 // This method will be called on rotation suggestion changes even if the proposed rotation 419 // is not valid for the top app. Use invalid rotation choices as a signal to remove the 420 // rotate button if shown. 421 if (!isValid) { 422 setRotateSuggestionButtonState(false); 423 return; 424 } 425 426 // If window rotation matches suggested rotation, remove any current suggestions 427 if (rotation == winRotation) { 428 getView().removeCallbacks(mRemoveRotationProposal); 429 setRotateSuggestionButtonState(false); 430 return; 431 } 432 433 // Prepare to show the navbar icon by updating the icon style to change anim params 434 mLastRotationSuggestion = rotation; // Remember rotation for click 435 if (mNavigationBarView != null) { 436 final boolean rotationCCW = isRotationAnimationCCW(winRotation, rotation); 437 int style; 438 if (winRotation == Surface.ROTATION_0 || winRotation == Surface.ROTATION_180) { 439 style = rotationCCW ? R.style.RotateButtonCCWStart90 : 440 R.style.RotateButtonCWStart90; 441 } else { // 90 or 270 442 style = rotationCCW ? R.style.RotateButtonCCWStart0 : 443 R.style.RotateButtonCWStart0; 444 } 445 mNavigationBarView.updateRotateSuggestionButtonStyle(style, true); 446 } 447 448 if (mNavigationBarWindowState != WINDOW_STATE_SHOWING) { 449 // If the navbar isn't shown, flag the rotate icon to be shown should the navbar become 450 // visible given some time limit. 451 mPendingRotationSuggestion = true; 452 getView().removeCallbacks(mCancelPendingRotationProposal); 453 getView().postDelayed(mCancelPendingRotationProposal, 454 NAVBAR_HIDDEN_PENDING_ICON_TIMEOUT_MS); 455 456 } else { // The navbar is visible so show the icon right away 457 showAndLogRotationSuggestion(); 458 } 459 } 460 461 private void onRotationSuggestionsDisabled() { 462 // Immediately hide the rotate button and clear any planned removal 463 setRotateSuggestionButtonState(false, true); 464 465 // This method can be called before view setup is done, ensure getView isn't null 466 final View v = getView(); 467 if (v != null) v.removeCallbacks(mRemoveRotationProposal); 468 } 469 470 private void showAndLogRotationSuggestion() { 471 setRotateSuggestionButtonState(true); 472 rescheduleRotationTimeout(false); 473 mMetricsLogger.visible(MetricsEvent.ROTATION_SUGGESTION_SHOWN); 474 } 475 476 private boolean isRotationAnimationCCW(int from, int to) { 477 // All 180deg WM rotation animations are CCW, match that 478 if (from == Surface.ROTATION_0 && to == Surface.ROTATION_90) return false; 479 if (from == Surface.ROTATION_0 && to == Surface.ROTATION_180) return true; //180d so CCW 480 if (from == Surface.ROTATION_0 && to == Surface.ROTATION_270) return true; 481 if (from == Surface.ROTATION_90 && to == Surface.ROTATION_0) return true; 482 if (from == Surface.ROTATION_90 && to == Surface.ROTATION_180) return false; 483 if (from == Surface.ROTATION_90 && to == Surface.ROTATION_270) return true; //180d so CCW 484 if (from == Surface.ROTATION_180 && to == Surface.ROTATION_0) return true; //180d so CCW 485 if (from == Surface.ROTATION_180 && to == Surface.ROTATION_90) return true; 486 if (from == Surface.ROTATION_180 && to == Surface.ROTATION_270) return false; 487 if (from == Surface.ROTATION_270 && to == Surface.ROTATION_0) return false; 488 if (from == Surface.ROTATION_270 && to == Surface.ROTATION_90) return true; //180d so CCW 489 if (from == Surface.ROTATION_270 && to == Surface.ROTATION_180) return true; 490 return false; // Default 491 } 492 493 public void setRotateSuggestionButtonState(final boolean visible) { 494 setRotateSuggestionButtonState(visible, false); 495 } 496 497 public void setRotateSuggestionButtonState(final boolean visible, final boolean force) { 498 if (mNavigationBarView == null) return; 499 500 // At any point the the button can become invisible because an a11y service became active. 501 // Similarly, a call to make the button visible may be rejected because an a11y service is 502 // active. Must account for this. 503 504 ButtonDispatcher rotBtn = mNavigationBarView.getRotateSuggestionButton(); 505 final boolean currentlyVisible = mNavigationBarView.isRotateButtonVisible(); 506 507 // Rerun a show animation to indicate change but don't rerun a hide animation 508 if (!visible && !currentlyVisible) return; 509 510 View view = rotBtn.getCurrentView(); 511 if (view == null) return; 512 513 KeyButtonDrawable kbd = rotBtn.getImageDrawable(); 514 if (kbd == null) return; 515 516 // The KBD and AVD is recreated every new valid suggestion because of style changes. 517 AnimatedVectorDrawable animIcon = null; 518 if (kbd.getDrawable(0) instanceof AnimatedVectorDrawable) { 519 animIcon = (AnimatedVectorDrawable) kbd.getDrawable(0); 520 } 521 522 // Clear any pending suggestion flag as it has either been nullified or is being shown 523 mPendingRotationSuggestion = false; 524 if (getView() != null) getView().removeCallbacks(mCancelPendingRotationProposal); 525 526 // Handle the visibility change and animation 527 if (visible) { // Appear and change (cannot force) 528 // Stop and clear any currently running hide animations 529 if (mRotateHideAnimator != null && mRotateHideAnimator.isRunning()) { 530 mRotateHideAnimator.cancel(); 531 } 532 mRotateHideAnimator = null; 533 534 // Reset the alpha if any has changed due to hide animation 535 view.setAlpha(1f); 536 537 // Run the rotate icon's animation if it has one 538 if (animIcon != null) { 539 animIcon.reset(); 540 animIcon.start(); 541 } 542 543 if (!isRotateSuggestionIntroduced()) mViewRippler.start(view); 544 545 // Set visibility, may fail if a11y service is active. 546 // If invisible, call will stop animation. 547 int appliedVisibility = mNavigationBarView.setRotateButtonVisibility(true); 548 if (appliedVisibility == View.VISIBLE) { 549 // If the button will actually become visible and the navbar is about to hide, 550 // tell the statusbar to keep it around for longer 551 mStatusBar.touchAutoHide(); 552 } 553 554 } else { // Hide 555 556 mViewRippler.stop(); // Prevent any pending ripples, force hide or not 557 558 if (force) { 559 // If a hide animator is running stop it and make invisible 560 if (mRotateHideAnimator != null && mRotateHideAnimator.isRunning()) { 561 mRotateHideAnimator.pause(); 562 } 563 mNavigationBarView.setRotateButtonVisibility(false); 564 return; 565 } 566 567 // Don't start any new hide animations if one is running 568 if (mRotateHideAnimator != null && mRotateHideAnimator.isRunning()) return; 569 570 ObjectAnimator fadeOut = ObjectAnimator.ofFloat(view, "alpha", 571 0f); 572 fadeOut.setDuration(BUTTON_FADE_IN_OUT_DURATION_MS); 573 fadeOut.setInterpolator(Interpolators.LINEAR); 574 fadeOut.addListener(new AnimatorListenerAdapter() { 575 @Override 576 public void onAnimationEnd(Animator animation) { 577 mNavigationBarView.setRotateButtonVisibility(false); 578 } 579 }); 580 581 mRotateHideAnimator = fadeOut; 582 fadeOut.start(); 583 } 584 } 585 586 private void rescheduleRotationTimeout(final boolean reasonHover) { 587 // May be called due to a new rotation proposal or a change in hover state 588 if (reasonHover) { 589 // Don't reschedule if a hide animator is running 590 if (mRotateHideAnimator != null && mRotateHideAnimator.isRunning()) return; 591 // Don't reschedule if not visible 592 if (!mNavigationBarView.isRotateButtonVisible()) return; 593 } 594 595 getView().removeCallbacks(mRemoveRotationProposal); // Stop any pending removal 596 getView().postDelayed(mRemoveRotationProposal, 597 computeRotationProposalTimeout()); // Schedule timeout 598 } 599 600 private int computeRotationProposalTimeout() { 601 if (mAccessibilityFeedbackEnabled) return 20000; 602 if (mHoveringRotationSuggestion) return 16000; 603 return 6000; 604 } 605 606 private boolean isRotateSuggestionIntroduced() { 607 ContentResolver cr = getContext().getContentResolver(); 608 return Settings.Secure.getInt(cr, Settings.Secure.NUM_ROTATION_SUGGESTIONS_ACCEPTED, 0) 609 >= NUM_ACCEPTED_ROTATION_SUGGESTIONS_FOR_INTRODUCTION; 610 } 611 612 private void incrementNumAcceptedRotationSuggestionsIfNeeded() { 613 // Get the number of accepted suggestions 614 ContentResolver cr = getContext().getContentResolver(); 615 final int numSuggestions = Settings.Secure.getInt(cr, 616 Settings.Secure.NUM_ROTATION_SUGGESTIONS_ACCEPTED, 0); 617 618 // Increment the number of accepted suggestions only if it would change intro mode 619 if (numSuggestions < NUM_ACCEPTED_ROTATION_SUGGESTIONS_FOR_INTRODUCTION) { 620 Settings.Secure.putInt(cr, Settings.Secure.NUM_ROTATION_SUGGESTIONS_ACCEPTED, 621 numSuggestions + 1); 622 } 623 } 624 625 // Injected from StatusBar at creation. 626 public void setCurrentSysuiVisibility(int systemUiVisibility) { 627 mSystemUiVisibility = systemUiVisibility; 628 mNavigationBarMode = mStatusBar.computeBarMode(0, mSystemUiVisibility, 629 View.NAVIGATION_BAR_TRANSIENT, View.NAVIGATION_BAR_TRANSLUCENT, 630 View.NAVIGATION_BAR_TRANSPARENT); 631 checkNavBarModes(); 632 mStatusBar.touchAutoHide(); 633 mLightBarController.onNavigationVisibilityChanged(mSystemUiVisibility, 0 /* mask */, 634 true /* nbModeChanged */, mNavigationBarMode); 635 } 636 637 @Override 638 public void setSystemUiVisibility(int vis, int fullscreenStackVis, int dockedStackVis, 639 int mask, Rect fullscreenStackBounds, Rect dockedStackBounds) { 640 final int oldVal = mSystemUiVisibility; 641 final int newVal = (oldVal & ~mask) | (vis & mask); 642 final int diff = newVal ^ oldVal; 643 boolean nbModeChanged = false; 644 if (diff != 0) { 645 mSystemUiVisibility = newVal; 646 647 // update navigation bar mode 648 final int nbMode = getView() == null 649 ? -1 : mStatusBar.computeBarMode(oldVal, newVal, 650 View.NAVIGATION_BAR_TRANSIENT, View.NAVIGATION_BAR_TRANSLUCENT, 651 View.NAVIGATION_BAR_TRANSPARENT); 652 nbModeChanged = nbMode != -1; 653 if (nbModeChanged) { 654 if (mNavigationBarMode != nbMode) { 655 mNavigationBarMode = nbMode; 656 checkNavBarModes(); 657 } 658 mStatusBar.touchAutoHide(); 659 } 660 } 661 662 mLightBarController.onNavigationVisibilityChanged(vis, mask, nbModeChanged, 663 mNavigationBarMode); 664 } 665 666 @Override 667 public void disable(int state1, int state2, boolean animate) { 668 // Navigation bar flags are in both state1 and state2. 669 final int masked = state1 & (StatusBarManager.DISABLE_HOME 670 | StatusBarManager.DISABLE_RECENT 671 | StatusBarManager.DISABLE_BACK 672 | StatusBarManager.DISABLE_SEARCH); 673 if (masked != mDisabledFlags1) { 674 mDisabledFlags1 = masked; 675 if (mNavigationBarView != null) mNavigationBarView.setDisabledFlags(state1); 676 updateScreenPinningGestures(); 677 } 678 679 final int masked2 = state2 & (StatusBarManager.DISABLE2_ROTATE_SUGGESTIONS); 680 if (masked2 != mDisabledFlags2) { 681 mDisabledFlags2 = masked2; 682 setDisabled2Flags(masked2); 683 } 684 } 685 686 private void setDisabled2Flags(int state2) { 687 // Method only called on change of disable2 flags 688 final boolean rotateSuggestionsDisabled = hasDisable2RotateSuggestionFlag(state2); 689 if (rotateSuggestionsDisabled) onRotationSuggestionsDisabled(); 690 } 691 692 private boolean hasDisable2RotateSuggestionFlag(int disable2Flags) { 693 return (disable2Flags & StatusBarManager.DISABLE2_ROTATE_SUGGESTIONS) != 0; 694 } 695 696 // ----- Internal stuffz ----- 697 698 private void refreshLayout(int layoutDirection) { 699 if (mNavigationBarView != null) { 700 mNavigationBarView.setLayoutDirection(layoutDirection); 701 } 702 } 703 704 private boolean shouldDisableNavbarGestures() { 705 return !mStatusBar.isDeviceProvisioned() 706 || (mDisabledFlags1 & StatusBarManager.DISABLE_SEARCH) != 0; 707 } 708 709 private void repositionNavigationBar() { 710 if (mNavigationBarView == null || !mNavigationBarView.isAttachedToWindow()) return; 711 712 prepareNavigationBarView(); 713 714 mWindowManager.updateViewLayout((View) mNavigationBarView.getParent(), 715 ((View) mNavigationBarView.getParent()).getLayoutParams()); 716 } 717 718 private void updateScreenPinningGestures() { 719 if (mNavigationBarView == null) { 720 return; 721 } 722 723 // Change the cancel pin gesture to home and back if recents button is invisible 724 boolean recentsVisible = mNavigationBarView.isRecentsButtonVisible(); 725 ButtonDispatcher backButton = mNavigationBarView.getBackButton(); 726 if (recentsVisible) { 727 backButton.setOnLongClickListener(this::onLongPressBackRecents); 728 } else { 729 backButton.setOnLongClickListener(this::onLongPressBackHome); 730 } 731 } 732 733 private void notifyNavigationBarScreenOn() { 734 mNavigationBarView.updateNavButtonIcons(); 735 } 736 737 private void prepareNavigationBarView() { 738 mNavigationBarView.reorient(); 739 740 ButtonDispatcher recentsButton = mNavigationBarView.getRecentsButton(); 741 recentsButton.setOnClickListener(this::onRecentsClick); 742 recentsButton.setOnTouchListener(this::onRecentsTouch); 743 recentsButton.setLongClickable(true); 744 recentsButton.setOnLongClickListener(this::onLongPressBackRecents); 745 746 ButtonDispatcher backButton = mNavigationBarView.getBackButton(); 747 backButton.setLongClickable(true); 748 749 ButtonDispatcher homeButton = mNavigationBarView.getHomeButton(); 750 homeButton.setOnTouchListener(this::onHomeTouch); 751 homeButton.setOnLongClickListener(this::onHomeLongClick); 752 753 ButtonDispatcher accessibilityButton = mNavigationBarView.getAccessibilityButton(); 754 accessibilityButton.setOnClickListener(this::onAccessibilityClick); 755 accessibilityButton.setOnLongClickListener(this::onAccessibilityLongClick); 756 updateAccessibilityServicesState(mAccessibilityManager); 757 758 ButtonDispatcher rotateSuggestionButton = mNavigationBarView.getRotateSuggestionButton(); 759 rotateSuggestionButton.setOnClickListener(this::onRotateSuggestionClick); 760 rotateSuggestionButton.setOnHoverListener(this::onRotateSuggestionHover); 761 updateScreenPinningGestures(); 762 } 763 764 private boolean onHomeTouch(View v, MotionEvent event) { 765 if (mHomeBlockedThisTouch && event.getActionMasked() != MotionEvent.ACTION_DOWN) { 766 return true; 767 } 768 // If an incoming call is ringing, HOME is totally disabled. 769 // (The user is already on the InCallUI at this point, 770 // and his ONLY options are to answer or reject the call.) 771 switch (event.getAction()) { 772 case MotionEvent.ACTION_DOWN: 773 mHomeBlockedThisTouch = false; 774 TelecomManager telecomManager = 775 getContext().getSystemService(TelecomManager.class); 776 if (telecomManager != null && telecomManager.isRinging()) { 777 if (mStatusBar.isKeyguardShowing()) { 778 Log.i(TAG, "Ignoring HOME; there's a ringing incoming call. " + 779 "No heads up"); 780 mHomeBlockedThisTouch = true; 781 return true; 782 } 783 } 784 break; 785 case MotionEvent.ACTION_UP: 786 case MotionEvent.ACTION_CANCEL: 787 mStatusBar.awakenDreams(); 788 break; 789 } 790 return false; 791 } 792 793 private void onVerticalChanged(boolean isVertical) { 794 mStatusBar.setQsScrimEnabled(!isVertical); 795 } 796 797 private boolean onNavigationTouch(View v, MotionEvent event) { 798 mStatusBar.checkUserAutohide(event); 799 return false; 800 } 801 802 @VisibleForTesting 803 boolean onHomeLongClick(View v) { 804 if (!mNavigationBarView.isRecentsButtonVisible() 805 && ActivityManagerWrapper.getInstance().isScreenPinningActive()) { 806 return onLongPressBackHome(v); 807 } 808 if (shouldDisableNavbarGestures()) { 809 return false; 810 } 811 mNavigationBarView.onNavigationButtonLongPress(v); 812 mMetricsLogger.action(MetricsEvent.ACTION_ASSIST_LONG_PRESS); 813 mAssistManager.startAssist(new Bundle() /* args */); 814 mStatusBar.awakenDreams(); 815 816 if (mNavigationBarView != null) { 817 mNavigationBarView.abortCurrentGesture(); 818 } 819 return true; 820 } 821 822 // additional optimization when we have software system buttons - start loading the recent 823 // tasks on touch down 824 private boolean onRecentsTouch(View v, MotionEvent event) { 825 int action = event.getAction() & MotionEvent.ACTION_MASK; 826 if (action == MotionEvent.ACTION_DOWN) { 827 mCommandQueue.preloadRecentApps(); 828 } else if (action == MotionEvent.ACTION_CANCEL) { 829 mCommandQueue.cancelPreloadRecentApps(); 830 } else if (action == MotionEvent.ACTION_UP) { 831 if (!v.isPressed()) { 832 mCommandQueue.cancelPreloadRecentApps(); 833 } 834 } 835 return false; 836 } 837 838 private void onRecentsClick(View v) { 839 if (LatencyTracker.isEnabled(getContext())) { 840 LatencyTracker.getInstance(getContext()).onActionStart( 841 LatencyTracker.ACTION_TOGGLE_RECENTS); 842 } 843 mStatusBar.awakenDreams(); 844 mCommandQueue.toggleRecentApps(); 845 } 846 847 private boolean onLongPressBackHome(View v) { 848 mNavigationBarView.onNavigationButtonLongPress(v); 849 return onLongPressNavigationButtons(v, R.id.back, R.id.home); 850 } 851 852 private boolean onLongPressBackRecents(View v) { 853 mNavigationBarView.onNavigationButtonLongPress(v); 854 return onLongPressNavigationButtons(v, R.id.back, R.id.recent_apps); 855 } 856 857 /** 858 * This handles long-press of both back and recents/home. Back is the common button with 859 * combination of recents if it is visible or home if recents is invisible. 860 * They are handled together to capture them both being long-pressed 861 * at the same time to exit screen pinning (lock task). 862 * 863 * When accessibility mode is on, only a long-press from recents/home 864 * is required to exit. 865 * 866 * In all other circumstances we try to pass through long-press events 867 * for Back, so that apps can still use it. Which can be from two things. 868 * 1) Not currently in screen pinning (lock task). 869 * 2) Back is long-pressed without recents/home. 870 */ 871 private boolean onLongPressNavigationButtons(View v, @IdRes int btnId1, @IdRes int btnId2) { 872 try { 873 boolean sendBackLongPress = false; 874 IActivityManager activityManager = ActivityManagerNative.getDefault(); 875 boolean touchExplorationEnabled = mAccessibilityManager.isTouchExplorationEnabled(); 876 boolean inLockTaskMode = activityManager.isInLockTaskMode(); 877 if (inLockTaskMode && !touchExplorationEnabled) { 878 long time = System.currentTimeMillis(); 879 880 // If we recently long-pressed the other button then they were 881 // long-pressed 'together' 882 if ((time - mLastLockToAppLongPress) < LOCK_TO_APP_GESTURE_TOLERENCE) { 883 activityManager.stopSystemLockTaskMode(); 884 // When exiting refresh disabled flags. 885 mNavigationBarView.updateNavButtonIcons(); 886 return true; 887 } else if (v.getId() == btnId1) { 888 ButtonDispatcher button = btnId2 == R.id.recent_apps 889 ? mNavigationBarView.getRecentsButton() 890 : mNavigationBarView.getHomeButton(); 891 if (!button.getCurrentView().isPressed()) { 892 // If we aren't pressing recents/home right now then they presses 893 // won't be together, so send the standard long-press action. 894 sendBackLongPress = true; 895 } 896 } 897 mLastLockToAppLongPress = time; 898 } else { 899 // If this is back still need to handle sending the long-press event. 900 if (v.getId() == btnId1) { 901 sendBackLongPress = true; 902 } else if (touchExplorationEnabled && inLockTaskMode) { 903 // When in accessibility mode a long press that is recents/home (not back) 904 // should stop lock task. 905 activityManager.stopSystemLockTaskMode(); 906 // When exiting refresh disabled flags. 907 mNavigationBarView.updateNavButtonIcons(); 908 return true; 909 } else if (v.getId() == btnId2) { 910 return btnId2 == R.id.recent_apps 911 ? onLongPressRecents() 912 : onHomeLongClick(mNavigationBarView.getHomeButton().getCurrentView()); 913 } 914 } 915 if (sendBackLongPress) { 916 KeyButtonView keyButtonView = (KeyButtonView) v; 917 keyButtonView.sendEvent(KeyEvent.ACTION_DOWN, KeyEvent.FLAG_LONG_PRESS); 918 keyButtonView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_LONG_CLICKED); 919 return true; 920 } 921 } catch (RemoteException e) { 922 Log.d(TAG, "Unable to reach activity manager", e); 923 } 924 return false; 925 } 926 927 private boolean onLongPressRecents() { 928 if (mRecents == null || !ActivityManager.supportsMultiWindow(getContext()) 929 || !mDivider.getView().getSnapAlgorithm().isSplitScreenFeasible() 930 || Recents.getConfiguration().isLowRamDevice 931 // If we are connected to the overview service, then disable the recents button 932 || mOverviewProxyService.getProxy() != null) { 933 return false; 934 } 935 936 return mStatusBar.toggleSplitScreenMode(MetricsEvent.ACTION_WINDOW_DOCK_LONGPRESS, 937 MetricsEvent.ACTION_WINDOW_UNDOCK_LONGPRESS); 938 } 939 940 private void onAccessibilityClick(View v) { 941 mAccessibilityManager.notifyAccessibilityButtonClicked(); 942 } 943 944 private boolean onAccessibilityLongClick(View v) { 945 Intent intent = new Intent(AccessibilityManager.ACTION_CHOOSE_ACCESSIBILITY_BUTTON); 946 intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); 947 v.getContext().startActivityAsUser(intent, UserHandle.CURRENT); 948 return true; 949 } 950 951 private void updateAccessibilityServicesState(AccessibilityManager accessibilityManager) { 952 int requestingServices = 0; 953 try { 954 if (Settings.Secure.getIntForUser(mContentResolver, 955 Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED, 956 UserHandle.USER_CURRENT) == 1) { 957 requestingServices++; 958 } 959 } catch (Settings.SettingNotFoundException e) { 960 } 961 962 boolean feedbackEnabled = false; 963 // AccessibilityManagerService resolves services for the current user since the local 964 // AccessibilityManager is created from a Context with the INTERACT_ACROSS_USERS permission 965 final List<AccessibilityServiceInfo> services = 966 accessibilityManager.getEnabledAccessibilityServiceList( 967 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 968 for (int i = services.size() - 1; i >= 0; --i) { 969 AccessibilityServiceInfo info = services.get(i); 970 if ((info.flags & AccessibilityServiceInfo.FLAG_REQUEST_ACCESSIBILITY_BUTTON) != 0) { 971 requestingServices++; 972 } 973 974 if (info.feedbackType != 0 && info.feedbackType != 975 AccessibilityServiceInfo.FEEDBACK_GENERIC) { 976 feedbackEnabled = true; 977 } 978 } 979 980 mAccessibilityFeedbackEnabled = feedbackEnabled; 981 982 final boolean showAccessibilityButton = requestingServices >= 1; 983 final boolean targetSelection = requestingServices >= 2; 984 mNavigationBarView.setAccessibilityButtonState(showAccessibilityButton, targetSelection); 985 } 986 987 private void onRotateSuggestionClick(View v) { 988 mMetricsLogger.action(MetricsEvent.ACTION_ROTATION_SUGGESTION_ACCEPTED); 989 incrementNumAcceptedRotationSuggestionsIfNeeded(); 990 mRotationLockController.setRotationLockedAtAngle(true, mLastRotationSuggestion); 991 } 992 993 private boolean onRotateSuggestionHover(View v, MotionEvent event) { 994 final int action = event.getActionMasked(); 995 mHoveringRotationSuggestion = (action == MotionEvent.ACTION_HOVER_ENTER) 996 || (action == MotionEvent.ACTION_HOVER_MOVE); 997 rescheduleRotationTimeout(true); 998 return false; // Must return false so a11y hover events are dispatched correctly. 999 } 1000 1001 // ----- Methods that StatusBar talks to (should be minimized) ----- 1002 1003 public void setLightBarController(LightBarController lightBarController) { 1004 mLightBarController = lightBarController; 1005 mLightBarController.setNavigationBar(mNavigationBarView.getLightTransitionsController()); 1006 } 1007 1008 public boolean isSemiTransparent() { 1009 return mNavigationBarMode == MODE_SEMI_TRANSPARENT; 1010 } 1011 1012 public void disableAnimationsDuringHide(long delay) { 1013 mNavigationBarView.setLayoutTransitionsEnabled(false); 1014 mNavigationBarView.postDelayed(() -> mNavigationBarView.setLayoutTransitionsEnabled(true), 1015 delay + StackStateAnimator.ANIMATION_DURATION_GO_TO_FULL_SHADE); 1016 } 1017 1018 public BarTransitions getBarTransitions() { 1019 return mNavigationBarView.getBarTransitions(); 1020 } 1021 1022 public void checkNavBarModes() { 1023 mStatusBar.checkBarMode(mNavigationBarMode, 1024 mNavigationBarWindowState, mNavigationBarView.getBarTransitions()); 1025 } 1026 1027 public void finishBarAnimations() { 1028 mNavigationBarView.getBarTransitions().finishAnimations(); 1029 } 1030 1031 private final AccessibilityServicesStateChangeListener mAccessibilityListener = 1032 this::updateAccessibilityServicesState; 1033 1034 private class MagnificationContentObserver extends ContentObserver { 1035 1036 public MagnificationContentObserver(Handler handler) { 1037 super(handler); 1038 } 1039 1040 @Override 1041 public void onChange(boolean selfChange) { 1042 NavigationBarFragment.this.updateAccessibilityServicesState(mAccessibilityManager); 1043 } 1044 } 1045 1046 private final Stub mRotationWatcher = new Stub() { 1047 @Override 1048 public void onRotationChanged(final int rotation) throws RemoteException { 1049 // We need this to be scheduled as early as possible to beat the redrawing of 1050 // window in response to the orientation change. 1051 Handler h = getView().getHandler(); 1052 Message msg = Message.obtain(h, () -> { 1053 1054 // If the screen rotation changes while locked, potentially update lock to flow with 1055 // new screen rotation and hide any showing suggestions. 1056 if (mRotationLockController.isRotationLocked()) { 1057 if (shouldOverrideUserLockPrefs(rotation)) { 1058 mRotationLockController.setRotationLockedAtAngle(true, rotation); 1059 } 1060 setRotateSuggestionButtonState(false, true); 1061 } 1062 1063 if (mNavigationBarView != null 1064 && mNavigationBarView.needsReorient(rotation)) { 1065 repositionNavigationBar(); 1066 } 1067 }); 1068 msg.setAsynchronous(true); 1069 h.sendMessageAtFrontOfQueue(msg); 1070 } 1071 1072 private boolean shouldOverrideUserLockPrefs(final int rotation) { 1073 // Only override user prefs when returning to the natural rotation (normally portrait). 1074 // Don't let apps that force landscape or 180 alter user lock. 1075 return rotation == NATURAL_ROTATION; 1076 } 1077 }; 1078 1079 private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { 1080 @Override 1081 public void onReceive(Context context, Intent intent) { 1082 String action = intent.getAction(); 1083 if (Intent.ACTION_SCREEN_OFF.equals(action) 1084 || Intent.ACTION_SCREEN_ON.equals(action)) { 1085 notifyNavigationBarScreenOn(); 1086 } 1087 } 1088 }; 1089 1090 class TaskStackListenerImpl extends SysUiTaskStackChangeListener { 1091 // Invalidate any rotation suggestion on task change or activity orientation change 1092 // Note: all callbacks happen on main thread 1093 1094 @Override 1095 public void onTaskStackChanged() { 1096 setRotateSuggestionButtonState(false); 1097 } 1098 1099 @Override 1100 public void onTaskRemoved(int taskId) { 1101 setRotateSuggestionButtonState(false); 1102 } 1103 1104 @Override 1105 public void onTaskMovedToFront(int taskId) { 1106 setRotateSuggestionButtonState(false); 1107 } 1108 1109 @Override 1110 public void onActivityRequestedOrientationChanged(int taskId, int requestedOrientation) { 1111 // Only hide the icon if the top task changes its requestedOrientation 1112 // Launcher can alter its requestedOrientation while it's not on top, don't hide on this 1113 Optional.ofNullable(ActivityManagerWrapper.getInstance()) 1114 .map(ActivityManagerWrapper::getRunningTask) 1115 .ifPresent(a -> { 1116 if (a.id == taskId) setRotateSuggestionButtonState(false); 1117 }); 1118 } 1119 } 1120 1121 private class ViewRippler { 1122 private static final int RIPPLE_OFFSET_MS = 50; 1123 private static final int RIPPLE_INTERVAL_MS = 2000; 1124 private View mRoot; 1125 1126 public void start(View root) { 1127 stop(); // Stop any pending ripple animations 1128 1129 mRoot = root; 1130 1131 // Schedule pending ripples, offset the 1st to avoid problems with visibility change 1132 mRoot.postOnAnimationDelayed(mRipple, RIPPLE_OFFSET_MS); 1133 mRoot.postOnAnimationDelayed(mRipple, RIPPLE_INTERVAL_MS); 1134 mRoot.postOnAnimationDelayed(mRipple, 2*RIPPLE_INTERVAL_MS); 1135 } 1136 1137 public void stop() { 1138 if (mRoot != null) mRoot.removeCallbacks(mRipple); 1139 } 1140 1141 private final Runnable mRipple = new Runnable() { 1142 @Override 1143 public void run() { // Cause the ripple to fire via false presses 1144 if (!mRoot.isAttachedToWindow()) return; 1145 mRoot.setPressed(true); 1146 mRoot.setPressed(false); 1147 } 1148 }; 1149 } 1150 1151 public static View create(Context context, FragmentListener listener) { 1152 WindowManager.LayoutParams lp = new WindowManager.LayoutParams( 1153 LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT, 1154 WindowManager.LayoutParams.TYPE_NAVIGATION_BAR, 1155 WindowManager.LayoutParams.FLAG_TOUCHABLE_WHEN_WAKING 1156 | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE 1157 | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL 1158 | WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH 1159 | WindowManager.LayoutParams.FLAG_SPLIT_TOUCH 1160 | WindowManager.LayoutParams.FLAG_SLIPPERY, 1161 PixelFormat.TRANSLUCENT); 1162 lp.token = new Binder(); 1163 lp.setTitle("NavigationBar"); 1164 lp.accessibilityTitle = context.getString(R.string.nav_bar); 1165 lp.windowAnimations = 0; 1166 1167 View navigationBarView = LayoutInflater.from(context).inflate( 1168 R.layout.navigation_bar_window, null); 1169 1170 if (DEBUG) Log.v(TAG, "addNavigationBar: about to add " + navigationBarView); 1171 if (navigationBarView == null) return null; 1172 1173 context.getSystemService(WindowManager.class).addView(navigationBarView, lp); 1174 FragmentHostManager fragmentHost = FragmentHostManager.get(navigationBarView); 1175 NavigationBarFragment fragment = new NavigationBarFragment(); 1176 fragmentHost.getFragmentManager().beginTransaction() 1177 .replace(R.id.navigation_bar_frame, fragment, TAG) 1178 .commit(); 1179 fragmentHost.addTagListener(TAG, listener); 1180 return navigationBarView; 1181 } 1182} 1183