NavigationBarFragment.java revision 08a2028228c73d83f37c23eb63d03c2e775d1594
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 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 mNavigationBarView.setRotateButtonVisibility(true); 548 549 } else { // Hide 550 551 mViewRippler.stop(); // Prevent any pending ripples, force hide or not 552 553 if (force) { 554 // If a hide animator is running stop it and make invisible 555 if (mRotateHideAnimator != null && mRotateHideAnimator.isRunning()) { 556 mRotateHideAnimator.pause(); 557 } 558 mNavigationBarView.setRotateButtonVisibility(false); 559 return; 560 } 561 562 // Don't start any new hide animations if one is running 563 if (mRotateHideAnimator != null && mRotateHideAnimator.isRunning()) return; 564 565 ObjectAnimator fadeOut = ObjectAnimator.ofFloat(view, "alpha", 566 0f); 567 fadeOut.setDuration(BUTTON_FADE_IN_OUT_DURATION_MS); 568 fadeOut.setInterpolator(Interpolators.LINEAR); 569 fadeOut.addListener(new AnimatorListenerAdapter() { 570 @Override 571 public void onAnimationEnd(Animator animation) { 572 mNavigationBarView.setRotateButtonVisibility(false); 573 } 574 }); 575 576 mRotateHideAnimator = fadeOut; 577 fadeOut.start(); 578 } 579 } 580 581 private void rescheduleRotationTimeout(final boolean reasonHover) { 582 // May be called due to a new rotation proposal or a change in hover state 583 if (reasonHover) { 584 // Don't reschedule if a hide animator is running 585 if (mRotateHideAnimator != null && mRotateHideAnimator.isRunning()) return; 586 // Don't reschedule if not visible 587 if (!mNavigationBarView.isRotateButtonVisible()) return; 588 } 589 590 getView().removeCallbacks(mRemoveRotationProposal); // Stop any pending removal 591 getView().postDelayed(mRemoveRotationProposal, 592 computeRotationProposalTimeout()); // Schedule timeout 593 } 594 595 private int computeRotationProposalTimeout() { 596 if (mAccessibilityFeedbackEnabled) return 20000; 597 if (mHoveringRotationSuggestion) return 16000; 598 return 6000; 599 } 600 601 private boolean isRotateSuggestionIntroduced() { 602 ContentResolver cr = getContext().getContentResolver(); 603 return Settings.Secure.getInt(cr, Settings.Secure.NUM_ROTATION_SUGGESTIONS_ACCEPTED, 0) 604 >= NUM_ACCEPTED_ROTATION_SUGGESTIONS_FOR_INTRODUCTION; 605 } 606 607 private void incrementNumAcceptedRotationSuggestionsIfNeeded() { 608 // Get the number of accepted suggestions 609 ContentResolver cr = getContext().getContentResolver(); 610 final int numSuggestions = Settings.Secure.getInt(cr, 611 Settings.Secure.NUM_ROTATION_SUGGESTIONS_ACCEPTED, 0); 612 613 // Increment the number of accepted suggestions only if it would change intro mode 614 if (numSuggestions < NUM_ACCEPTED_ROTATION_SUGGESTIONS_FOR_INTRODUCTION) { 615 Settings.Secure.putInt(cr, Settings.Secure.NUM_ROTATION_SUGGESTIONS_ACCEPTED, 616 numSuggestions + 1); 617 } 618 } 619 620 // Injected from StatusBar at creation. 621 public void setCurrentSysuiVisibility(int systemUiVisibility) { 622 mSystemUiVisibility = systemUiVisibility; 623 mNavigationBarMode = mStatusBar.computeBarMode(0, mSystemUiVisibility, 624 View.NAVIGATION_BAR_TRANSIENT, View.NAVIGATION_BAR_TRANSLUCENT, 625 View.NAVIGATION_BAR_TRANSPARENT); 626 checkNavBarModes(); 627 mStatusBar.touchAutoHide(); 628 mLightBarController.onNavigationVisibilityChanged(mSystemUiVisibility, 0 /* mask */, 629 true /* nbModeChanged */, mNavigationBarMode); 630 } 631 632 @Override 633 public void setSystemUiVisibility(int vis, int fullscreenStackVis, int dockedStackVis, 634 int mask, Rect fullscreenStackBounds, Rect dockedStackBounds) { 635 final int oldVal = mSystemUiVisibility; 636 final int newVal = (oldVal & ~mask) | (vis & mask); 637 final int diff = newVal ^ oldVal; 638 boolean nbModeChanged = false; 639 if (diff != 0) { 640 mSystemUiVisibility = newVal; 641 642 // update navigation bar mode 643 final int nbMode = getView() == null 644 ? -1 : mStatusBar.computeBarMode(oldVal, newVal, 645 View.NAVIGATION_BAR_TRANSIENT, View.NAVIGATION_BAR_TRANSLUCENT, 646 View.NAVIGATION_BAR_TRANSPARENT); 647 nbModeChanged = nbMode != -1; 648 if (nbModeChanged) { 649 if (mNavigationBarMode != nbMode) { 650 mNavigationBarMode = nbMode; 651 checkNavBarModes(); 652 } 653 mStatusBar.touchAutoHide(); 654 } 655 } 656 657 mLightBarController.onNavigationVisibilityChanged(vis, mask, nbModeChanged, 658 mNavigationBarMode); 659 } 660 661 @Override 662 public void disable(int state1, int state2, boolean animate) { 663 // Navigation bar flags are in both state1 and state2. 664 final int masked = state1 & (StatusBarManager.DISABLE_HOME 665 | StatusBarManager.DISABLE_RECENT 666 | StatusBarManager.DISABLE_BACK 667 | StatusBarManager.DISABLE_SEARCH); 668 if (masked != mDisabledFlags1) { 669 mDisabledFlags1 = masked; 670 if (mNavigationBarView != null) mNavigationBarView.setDisabledFlags(state1); 671 updateScreenPinningGestures(); 672 } 673 674 final int masked2 = state2 & (StatusBarManager.DISABLE2_ROTATE_SUGGESTIONS); 675 if (masked2 != mDisabledFlags2) { 676 mDisabledFlags2 = masked2; 677 setDisabled2Flags(masked2); 678 } 679 } 680 681 private void setDisabled2Flags(int state2) { 682 // Method only called on change of disable2 flags 683 final boolean rotateSuggestionsDisabled = hasDisable2RotateSuggestionFlag(state2); 684 if (rotateSuggestionsDisabled) onRotationSuggestionsDisabled(); 685 } 686 687 private boolean hasDisable2RotateSuggestionFlag(int disable2Flags) { 688 return (disable2Flags & StatusBarManager.DISABLE2_ROTATE_SUGGESTIONS) != 0; 689 } 690 691 // ----- Internal stuffz ----- 692 693 private void refreshLayout(int layoutDirection) { 694 if (mNavigationBarView != null) { 695 mNavigationBarView.setLayoutDirection(layoutDirection); 696 } 697 } 698 699 private boolean shouldDisableNavbarGestures() { 700 return !mStatusBar.isDeviceProvisioned() 701 || (mDisabledFlags1 & StatusBarManager.DISABLE_SEARCH) != 0; 702 } 703 704 private void repositionNavigationBar() { 705 if (mNavigationBarView == null || !mNavigationBarView.isAttachedToWindow()) return; 706 707 prepareNavigationBarView(); 708 709 mWindowManager.updateViewLayout((View) mNavigationBarView.getParent(), 710 ((View) mNavigationBarView.getParent()).getLayoutParams()); 711 } 712 713 private void updateScreenPinningGestures() { 714 if (mNavigationBarView == null) { 715 return; 716 } 717 718 // Change the cancel pin gesture to home and back if recents button is invisible 719 boolean recentsVisible = mNavigationBarView.isRecentsButtonVisible(); 720 ButtonDispatcher backButton = mNavigationBarView.getBackButton(); 721 if (recentsVisible) { 722 backButton.setOnLongClickListener(this::onLongPressBackRecents); 723 } else { 724 backButton.setOnLongClickListener(this::onLongPressBackHome); 725 } 726 } 727 728 private void notifyNavigationBarScreenOn() { 729 mNavigationBarView.updateNavButtonIcons(); 730 } 731 732 private void prepareNavigationBarView() { 733 mNavigationBarView.reorient(); 734 735 ButtonDispatcher recentsButton = mNavigationBarView.getRecentsButton(); 736 recentsButton.setOnClickListener(this::onRecentsClick); 737 recentsButton.setOnTouchListener(this::onRecentsTouch); 738 recentsButton.setLongClickable(true); 739 recentsButton.setOnLongClickListener(this::onLongPressBackRecents); 740 741 ButtonDispatcher backButton = mNavigationBarView.getBackButton(); 742 backButton.setLongClickable(true); 743 744 ButtonDispatcher homeButton = mNavigationBarView.getHomeButton(); 745 homeButton.setOnTouchListener(this::onHomeTouch); 746 homeButton.setOnLongClickListener(this::onHomeLongClick); 747 748 ButtonDispatcher accessibilityButton = mNavigationBarView.getAccessibilityButton(); 749 accessibilityButton.setOnClickListener(this::onAccessibilityClick); 750 accessibilityButton.setOnLongClickListener(this::onAccessibilityLongClick); 751 updateAccessibilityServicesState(mAccessibilityManager); 752 753 ButtonDispatcher rotateSuggestionButton = mNavigationBarView.getRotateSuggestionButton(); 754 rotateSuggestionButton.setOnClickListener(this::onRotateSuggestionClick); 755 rotateSuggestionButton.setOnHoverListener(this::onRotateSuggestionHover); 756 updateScreenPinningGestures(); 757 } 758 759 private boolean onHomeTouch(View v, MotionEvent event) { 760 if (mHomeBlockedThisTouch && event.getActionMasked() != MotionEvent.ACTION_DOWN) { 761 return true; 762 } 763 // If an incoming call is ringing, HOME is totally disabled. 764 // (The user is already on the InCallUI at this point, 765 // and his ONLY options are to answer or reject the call.) 766 switch (event.getAction()) { 767 case MotionEvent.ACTION_DOWN: 768 mHomeBlockedThisTouch = false; 769 TelecomManager telecomManager = 770 getContext().getSystemService(TelecomManager.class); 771 if (telecomManager != null && telecomManager.isRinging()) { 772 if (mStatusBar.isKeyguardShowing()) { 773 Log.i(TAG, "Ignoring HOME; there's a ringing incoming call. " + 774 "No heads up"); 775 mHomeBlockedThisTouch = true; 776 return true; 777 } 778 } 779 break; 780 case MotionEvent.ACTION_UP: 781 case MotionEvent.ACTION_CANCEL: 782 mStatusBar.awakenDreams(); 783 break; 784 } 785 return false; 786 } 787 788 private void onVerticalChanged(boolean isVertical) { 789 mStatusBar.setQsScrimEnabled(!isVertical); 790 } 791 792 private boolean onNavigationTouch(View v, MotionEvent event) { 793 mStatusBar.checkUserAutohide(event); 794 return false; 795 } 796 797 @VisibleForTesting 798 boolean onHomeLongClick(View v) { 799 if (!mNavigationBarView.isRecentsButtonVisible() 800 && ActivityManagerWrapper.getInstance().isScreenPinningActive()) { 801 return onLongPressBackHome(v); 802 } 803 if (shouldDisableNavbarGestures()) { 804 return false; 805 } 806 mNavigationBarView.onNavigationButtonLongPress(v); 807 mMetricsLogger.action(MetricsEvent.ACTION_ASSIST_LONG_PRESS); 808 mAssistManager.startAssist(new Bundle() /* args */); 809 mStatusBar.awakenDreams(); 810 811 if (mNavigationBarView != null) { 812 mNavigationBarView.abortCurrentGesture(); 813 } 814 return true; 815 } 816 817 // additional optimization when we have software system buttons - start loading the recent 818 // tasks on touch down 819 private boolean onRecentsTouch(View v, MotionEvent event) { 820 int action = event.getAction() & MotionEvent.ACTION_MASK; 821 if (action == MotionEvent.ACTION_DOWN) { 822 mCommandQueue.preloadRecentApps(); 823 } else if (action == MotionEvent.ACTION_CANCEL) { 824 mCommandQueue.cancelPreloadRecentApps(); 825 } else if (action == MotionEvent.ACTION_UP) { 826 if (!v.isPressed()) { 827 mCommandQueue.cancelPreloadRecentApps(); 828 } 829 } 830 return false; 831 } 832 833 private void onRecentsClick(View v) { 834 if (LatencyTracker.isEnabled(getContext())) { 835 LatencyTracker.getInstance(getContext()).onActionStart( 836 LatencyTracker.ACTION_TOGGLE_RECENTS); 837 } 838 mStatusBar.awakenDreams(); 839 mCommandQueue.toggleRecentApps(); 840 } 841 842 private boolean onLongPressBackHome(View v) { 843 mNavigationBarView.onNavigationButtonLongPress(v); 844 return onLongPressNavigationButtons(v, R.id.back, R.id.home); 845 } 846 847 private boolean onLongPressBackRecents(View v) { 848 mNavigationBarView.onNavigationButtonLongPress(v); 849 return onLongPressNavigationButtons(v, R.id.back, R.id.recent_apps); 850 } 851 852 /** 853 * This handles long-press of both back and recents/home. Back is the common button with 854 * combination of recents if it is visible or home if recents is invisible. 855 * They are handled together to capture them both being long-pressed 856 * at the same time to exit screen pinning (lock task). 857 * 858 * When accessibility mode is on, only a long-press from recents/home 859 * is required to exit. 860 * 861 * In all other circumstances we try to pass through long-press events 862 * for Back, so that apps can still use it. Which can be from two things. 863 * 1) Not currently in screen pinning (lock task). 864 * 2) Back is long-pressed without recents/home. 865 */ 866 private boolean onLongPressNavigationButtons(View v, @IdRes int btnId1, @IdRes int btnId2) { 867 try { 868 boolean sendBackLongPress = false; 869 IActivityManager activityManager = ActivityManagerNative.getDefault(); 870 boolean touchExplorationEnabled = mAccessibilityManager.isTouchExplorationEnabled(); 871 boolean inLockTaskMode = activityManager.isInLockTaskMode(); 872 if (inLockTaskMode && !touchExplorationEnabled) { 873 long time = System.currentTimeMillis(); 874 875 // If we recently long-pressed the other button then they were 876 // long-pressed 'together' 877 if ((time - mLastLockToAppLongPress) < LOCK_TO_APP_GESTURE_TOLERENCE) { 878 activityManager.stopSystemLockTaskMode(); 879 // When exiting refresh disabled flags. 880 mNavigationBarView.updateNavButtonIcons(); 881 return true; 882 } else if (v.getId() == btnId1) { 883 ButtonDispatcher button = btnId2 == R.id.recent_apps 884 ? mNavigationBarView.getRecentsButton() 885 : mNavigationBarView.getHomeButton(); 886 if (!button.getCurrentView().isPressed()) { 887 // If we aren't pressing recents/home right now then they presses 888 // won't be together, so send the standard long-press action. 889 sendBackLongPress = true; 890 } 891 } 892 mLastLockToAppLongPress = time; 893 } else { 894 // If this is back still need to handle sending the long-press event. 895 if (v.getId() == btnId1) { 896 sendBackLongPress = true; 897 } else if (touchExplorationEnabled && inLockTaskMode) { 898 // When in accessibility mode a long press that is recents/home (not back) 899 // should stop lock task. 900 activityManager.stopSystemLockTaskMode(); 901 // When exiting refresh disabled flags. 902 mNavigationBarView.updateNavButtonIcons(); 903 return true; 904 } else if (v.getId() == btnId2) { 905 return btnId2 == R.id.recent_apps 906 ? onLongPressRecents() 907 : onHomeLongClick(mNavigationBarView.getHomeButton().getCurrentView()); 908 } 909 } 910 if (sendBackLongPress) { 911 KeyButtonView keyButtonView = (KeyButtonView) v; 912 keyButtonView.sendEvent(KeyEvent.ACTION_DOWN, KeyEvent.FLAG_LONG_PRESS); 913 keyButtonView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_LONG_CLICKED); 914 return true; 915 } 916 } catch (RemoteException e) { 917 Log.d(TAG, "Unable to reach activity manager", e); 918 } 919 return false; 920 } 921 922 private boolean onLongPressRecents() { 923 if (mRecents == null || !ActivityManager.supportsMultiWindow(getContext()) 924 || !mDivider.getView().getSnapAlgorithm().isSplitScreenFeasible() 925 || Recents.getConfiguration().isLowRamDevice 926 // If we are connected to the overview service, then disable the recents button 927 || mOverviewProxyService.getProxy() != null) { 928 return false; 929 } 930 931 return mStatusBar.toggleSplitScreenMode(MetricsEvent.ACTION_WINDOW_DOCK_LONGPRESS, 932 MetricsEvent.ACTION_WINDOW_UNDOCK_LONGPRESS); 933 } 934 935 private void onAccessibilityClick(View v) { 936 mAccessibilityManager.notifyAccessibilityButtonClicked(); 937 } 938 939 private boolean onAccessibilityLongClick(View v) { 940 Intent intent = new Intent(AccessibilityManager.ACTION_CHOOSE_ACCESSIBILITY_BUTTON); 941 intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); 942 v.getContext().startActivityAsUser(intent, UserHandle.CURRENT); 943 return true; 944 } 945 946 private void updateAccessibilityServicesState(AccessibilityManager accessibilityManager) { 947 int requestingServices = 0; 948 try { 949 if (Settings.Secure.getIntForUser(mContentResolver, 950 Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED, 951 UserHandle.USER_CURRENT) == 1) { 952 requestingServices++; 953 } 954 } catch (Settings.SettingNotFoundException e) { 955 } 956 957 boolean feedbackEnabled = false; 958 // AccessibilityManagerService resolves services for the current user since the local 959 // AccessibilityManager is created from a Context with the INTERACT_ACROSS_USERS permission 960 final List<AccessibilityServiceInfo> services = 961 accessibilityManager.getEnabledAccessibilityServiceList( 962 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 963 for (int i = services.size() - 1; i >= 0; --i) { 964 AccessibilityServiceInfo info = services.get(i); 965 if ((info.flags & AccessibilityServiceInfo.FLAG_REQUEST_ACCESSIBILITY_BUTTON) != 0) { 966 requestingServices++; 967 } 968 969 if (info.feedbackType != 0 && info.feedbackType != 970 AccessibilityServiceInfo.FEEDBACK_GENERIC) { 971 feedbackEnabled = true; 972 } 973 } 974 975 mAccessibilityFeedbackEnabled = feedbackEnabled; 976 977 final boolean showAccessibilityButton = requestingServices >= 1; 978 final boolean targetSelection = requestingServices >= 2; 979 mNavigationBarView.setAccessibilityButtonState(showAccessibilityButton, targetSelection); 980 } 981 982 private void onRotateSuggestionClick(View v) { 983 mMetricsLogger.action(MetricsEvent.ACTION_ROTATION_SUGGESTION_ACCEPTED); 984 incrementNumAcceptedRotationSuggestionsIfNeeded(); 985 mRotationLockController.setRotationLockedAtAngle(true, mLastRotationSuggestion); 986 } 987 988 private boolean onRotateSuggestionHover(View v, MotionEvent event) { 989 final int action = event.getActionMasked(); 990 mHoveringRotationSuggestion = (action == MotionEvent.ACTION_HOVER_ENTER) 991 || (action == MotionEvent.ACTION_HOVER_MOVE); 992 rescheduleRotationTimeout(true); 993 return false; // Must return false so a11y hover events are dispatched correctly. 994 } 995 996 // ----- Methods that StatusBar talks to (should be minimized) ----- 997 998 public void setLightBarController(LightBarController lightBarController) { 999 mLightBarController = lightBarController; 1000 mLightBarController.setNavigationBar(mNavigationBarView.getLightTransitionsController()); 1001 } 1002 1003 public boolean isSemiTransparent() { 1004 return mNavigationBarMode == MODE_SEMI_TRANSPARENT; 1005 } 1006 1007 public void disableAnimationsDuringHide(long delay) { 1008 mNavigationBarView.setLayoutTransitionsEnabled(false); 1009 mNavigationBarView.postDelayed(() -> mNavigationBarView.setLayoutTransitionsEnabled(true), 1010 delay + StackStateAnimator.ANIMATION_DURATION_GO_TO_FULL_SHADE); 1011 } 1012 1013 public BarTransitions getBarTransitions() { 1014 return mNavigationBarView.getBarTransitions(); 1015 } 1016 1017 public void checkNavBarModes() { 1018 mStatusBar.checkBarMode(mNavigationBarMode, 1019 mNavigationBarWindowState, mNavigationBarView.getBarTransitions()); 1020 } 1021 1022 public void finishBarAnimations() { 1023 mNavigationBarView.getBarTransitions().finishAnimations(); 1024 } 1025 1026 private final AccessibilityServicesStateChangeListener mAccessibilityListener = 1027 this::updateAccessibilityServicesState; 1028 1029 private class MagnificationContentObserver extends ContentObserver { 1030 1031 public MagnificationContentObserver(Handler handler) { 1032 super(handler); 1033 } 1034 1035 @Override 1036 public void onChange(boolean selfChange) { 1037 NavigationBarFragment.this.updateAccessibilityServicesState(mAccessibilityManager); 1038 } 1039 } 1040 1041 private final Stub mRotationWatcher = new Stub() { 1042 @Override 1043 public void onRotationChanged(final int rotation) throws RemoteException { 1044 // We need this to be scheduled as early as possible to beat the redrawing of 1045 // window in response to the orientation change. 1046 Handler h = getView().getHandler(); 1047 Message msg = Message.obtain(h, () -> { 1048 1049 // If the screen rotation changes while locked, potentially update lock to flow with 1050 // new screen rotation and hide any showing suggestions. 1051 if (mRotationLockController.isRotationLocked()) { 1052 if (shouldOverrideUserLockPrefs(rotation)) { 1053 mRotationLockController.setRotationLockedAtAngle(true, rotation); 1054 } 1055 setRotateSuggestionButtonState(false, true); 1056 } 1057 1058 if (mNavigationBarView != null 1059 && mNavigationBarView.needsReorient(rotation)) { 1060 repositionNavigationBar(); 1061 } 1062 }); 1063 msg.setAsynchronous(true); 1064 h.sendMessageAtFrontOfQueue(msg); 1065 } 1066 1067 private boolean shouldOverrideUserLockPrefs(final int rotation) { 1068 // Only override user prefs when returning to the natural rotation (normally portrait). 1069 // Don't let apps that force landscape or 180 alter user lock. 1070 return rotation == NATURAL_ROTATION; 1071 } 1072 }; 1073 1074 private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { 1075 @Override 1076 public void onReceive(Context context, Intent intent) { 1077 String action = intent.getAction(); 1078 if (Intent.ACTION_SCREEN_OFF.equals(action) 1079 || Intent.ACTION_SCREEN_ON.equals(action)) { 1080 notifyNavigationBarScreenOn(); 1081 } 1082 } 1083 }; 1084 1085 class TaskStackListenerImpl extends SysUiTaskStackChangeListener { 1086 // Invalidate any rotation suggestion on task change or activity orientation change 1087 // Note: all callbacks happen on main thread 1088 1089 @Override 1090 public void onTaskStackChanged() { 1091 setRotateSuggestionButtonState(false); 1092 } 1093 1094 @Override 1095 public void onTaskRemoved(int taskId) { 1096 setRotateSuggestionButtonState(false); 1097 } 1098 1099 @Override 1100 public void onTaskMovedToFront(int taskId) { 1101 setRotateSuggestionButtonState(false); 1102 } 1103 1104 @Override 1105 public void onActivityRequestedOrientationChanged(int taskId, int requestedOrientation) { 1106 // Only hide the icon if the top task changes its requestedOrientation 1107 // Launcher can alter its requestedOrientation while it's not on top, don't hide on this 1108 Optional.ofNullable(ActivityManagerWrapper.getInstance()) 1109 .map(ActivityManagerWrapper::getRunningTask) 1110 .ifPresent(a -> { 1111 if (a.id == taskId) setRotateSuggestionButtonState(false); 1112 }); 1113 } 1114 } 1115 1116 private class ViewRippler { 1117 private static final int RIPPLE_OFFSET_MS = 50; 1118 private static final int RIPPLE_INTERVAL_MS = 2000; 1119 private View mRoot; 1120 1121 public void start(View root) { 1122 stop(); // Stop any pending ripple animations 1123 1124 mRoot = root; 1125 1126 // Schedule pending ripples, offset the 1st to avoid problems with visibility change 1127 mRoot.postOnAnimationDelayed(mRipple, RIPPLE_OFFSET_MS); 1128 mRoot.postOnAnimationDelayed(mRipple, RIPPLE_INTERVAL_MS); 1129 mRoot.postOnAnimationDelayed(mRipple, 2*RIPPLE_INTERVAL_MS); 1130 } 1131 1132 public void stop() { 1133 if (mRoot != null) mRoot.removeCallbacks(mRipple); 1134 } 1135 1136 private final Runnable mRipple = new Runnable() { 1137 @Override 1138 public void run() { // Cause the ripple to fire via false presses 1139 mRoot.setPressed(true); 1140 mRoot.setPressed(false); 1141 } 1142 }; 1143 } 1144 1145 public static View create(Context context, FragmentListener listener) { 1146 WindowManager.LayoutParams lp = new WindowManager.LayoutParams( 1147 LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT, 1148 WindowManager.LayoutParams.TYPE_NAVIGATION_BAR, 1149 WindowManager.LayoutParams.FLAG_TOUCHABLE_WHEN_WAKING 1150 | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE 1151 | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL 1152 | WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH 1153 | WindowManager.LayoutParams.FLAG_SPLIT_TOUCH 1154 | WindowManager.LayoutParams.FLAG_SLIPPERY, 1155 PixelFormat.TRANSLUCENT); 1156 lp.token = new Binder(); 1157 lp.setTitle("NavigationBar"); 1158 lp.accessibilityTitle = context.getString(R.string.nav_bar); 1159 lp.windowAnimations = 0; 1160 1161 View navigationBarView = LayoutInflater.from(context).inflate( 1162 R.layout.navigation_bar_window, null); 1163 1164 if (DEBUG) Log.v(TAG, "addNavigationBar: about to add " + navigationBarView); 1165 if (navigationBarView == null) return null; 1166 1167 context.getSystemService(WindowManager.class).addView(navigationBarView, lp); 1168 FragmentHostManager fragmentHost = FragmentHostManager.get(navigationBarView); 1169 NavigationBarFragment fragment = new NavigationBarFragment(); 1170 fragmentHost.getFragmentManager().beginTransaction() 1171 .replace(R.id.navigation_bar_frame, fragment, TAG) 1172 .commit(); 1173 fragmentHost.addTagListener(TAG, listener); 1174 return navigationBarView; 1175 } 1176} 1177