PanelView.java revision 79d79c455beecf7a70460575ab21d9bf49767e2c
1/* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.systemui.statusbar.phone; 18 19import android.animation.Animator; 20import android.animation.AnimatorListenerAdapter; 21import android.animation.ObjectAnimator; 22import android.animation.ValueAnimator; 23import android.content.Context; 24import android.content.res.Configuration; 25import android.content.res.Resources; 26import android.util.AttributeSet; 27import android.util.Log; 28import android.view.MotionEvent; 29import android.view.ViewConfiguration; 30import android.view.ViewTreeObserver; 31import android.view.animation.AnimationUtils; 32import android.view.animation.Interpolator; 33import android.widget.FrameLayout; 34 35import com.android.systemui.EventLogConstants; 36import com.android.systemui.EventLogTags; 37import com.android.systemui.R; 38import com.android.systemui.doze.DozeLog; 39import com.android.systemui.statusbar.FlingAnimationUtils; 40import com.android.systemui.statusbar.StatusBarState; 41import com.android.systemui.statusbar.policy.HeadsUpManager; 42 43import java.io.FileDescriptor; 44import java.io.PrintWriter; 45 46public abstract class PanelView extends FrameLayout { 47 public static final boolean DEBUG = PanelBar.DEBUG; 48 public static final String TAG = PanelView.class.getSimpleName(); 49 50 private final void logf(String fmt, Object... args) { 51 Log.v(TAG, (mViewName != null ? (mViewName + ": ") : "") + String.format(fmt, args)); 52 } 53 54 protected PhoneStatusBar mStatusBar; 55 protected HeadsUpManager mHeadsUpManager; 56 57 private float mPeekHeight; 58 private float mHintDistance; 59 private int mEdgeTapAreaWidth; 60 private float mInitialOffsetOnTouch; 61 private boolean mCollapsedAndHeadsUpOnDown; 62 private float mExpandedFraction = 0; 63 protected float mExpandedHeight = 0; 64 private boolean mPanelClosedOnDown; 65 private boolean mHasLayoutedSinceDown; 66 private float mUpdateFlingVelocity; 67 private boolean mUpdateFlingOnLayout; 68 private boolean mPeekTouching; 69 private boolean mJustPeeked; 70 private boolean mClosing; 71 protected boolean mTracking; 72 private boolean mTouchSlopExceeded; 73 private int mTrackingPointer; 74 protected int mTouchSlop; 75 protected boolean mHintAnimationRunning; 76 private boolean mOverExpandedBeforeFling; 77 private boolean mTouchAboveFalsingThreshold; 78 private int mUnlockFalsingThreshold; 79 private boolean mTouchStartedInEmptyArea; 80 private boolean mMotionAborted; 81 private boolean mUpwardsWhenTresholdReached; 82 private boolean mAnimatingOnDown; 83 84 private ValueAnimator mHeightAnimator; 85 private ObjectAnimator mPeekAnimator; 86 private VelocityTrackerInterface mVelocityTracker; 87 private FlingAnimationUtils mFlingAnimationUtils; 88 89 /** 90 * Whether an instant expand request is currently pending and we are just waiting for layout. 91 */ 92 private boolean mInstantExpanding; 93 94 PanelBar mBar; 95 96 private String mViewName; 97 private float mInitialTouchY; 98 private float mInitialTouchX; 99 private boolean mTouchDisabled; 100 101 private Interpolator mLinearOutSlowInInterpolator; 102 private Interpolator mFastOutSlowInInterpolator; 103 private Interpolator mBounceInterpolator; 104 protected KeyguardBottomAreaView mKeyguardBottomArea; 105 106 private boolean mPeekPending; 107 private boolean mCollapseAfterPeek; 108 109 /** 110 * Speed-up factor to be used when {@link #mFlingCollapseRunnable} runs the next time. 111 */ 112 private float mNextCollapseSpeedUpFactor = 1.0f; 113 114 private boolean mExpanding; 115 private boolean mGestureWaitForTouchSlop; 116 private boolean mIgnoreXTouchSlop; 117 private Runnable mPeekRunnable = new Runnable() { 118 @Override 119 public void run() { 120 mPeekPending = false; 121 runPeekAnimation(); 122 } 123 }; 124 125 protected void onExpandingFinished() { 126 endClosing(); 127 mBar.onExpandingFinished(); 128 } 129 130 protected void onExpandingStarted() { 131 } 132 133 private void notifyExpandingStarted() { 134 if (!mExpanding) { 135 mExpanding = true; 136 onExpandingStarted(); 137 } 138 } 139 140 private void notifyExpandingFinished() { 141 if (mExpanding) { 142 mExpanding = false; 143 onExpandingFinished(); 144 } 145 } 146 147 private void schedulePeek() { 148 mPeekPending = true; 149 long timeout = ViewConfiguration.getTapTimeout(); 150 postOnAnimationDelayed(mPeekRunnable, timeout); 151 notifyBarPanelExpansionChanged(); 152 } 153 154 private void runPeekAnimation() { 155 mPeekHeight = getPeekHeight(); 156 if (DEBUG) logf("peek to height=%.1f", mPeekHeight); 157 if (mHeightAnimator != null) { 158 return; 159 } 160 mPeekAnimator = ObjectAnimator.ofFloat(this, "expandedHeight", mPeekHeight) 161 .setDuration(250); 162 mPeekAnimator.setInterpolator(mLinearOutSlowInInterpolator); 163 mPeekAnimator.addListener(new AnimatorListenerAdapter() { 164 private boolean mCancelled; 165 166 @Override 167 public void onAnimationCancel(Animator animation) { 168 mCancelled = true; 169 } 170 171 @Override 172 public void onAnimationEnd(Animator animation) { 173 mPeekAnimator = null; 174 if (mCollapseAfterPeek && !mCancelled) { 175 postOnAnimation(new Runnable() { 176 @Override 177 public void run() { 178 collapse(false /* delayed */, 1.0f /* speedUpFactor */); 179 } 180 }); 181 } 182 mCollapseAfterPeek = false; 183 } 184 }); 185 notifyExpandingStarted(); 186 mPeekAnimator.start(); 187 mJustPeeked = true; 188 } 189 190 public PanelView(Context context, AttributeSet attrs) { 191 super(context, attrs); 192 mFlingAnimationUtils = new FlingAnimationUtils(context, 0.6f); 193 mFastOutSlowInInterpolator = 194 AnimationUtils.loadInterpolator(context, android.R.interpolator.fast_out_slow_in); 195 mLinearOutSlowInInterpolator = 196 AnimationUtils.loadInterpolator(context, android.R.interpolator.linear_out_slow_in); 197 mBounceInterpolator = new BounceInterpolator(); 198 } 199 200 protected void loadDimens() { 201 final Resources res = getContext().getResources(); 202 final ViewConfiguration configuration = ViewConfiguration.get(getContext()); 203 mTouchSlop = configuration.getScaledTouchSlop(); 204 mHintDistance = res.getDimension(R.dimen.hint_move_distance); 205 mEdgeTapAreaWidth = res.getDimensionPixelSize(R.dimen.edge_tap_area_width); 206 mUnlockFalsingThreshold = res.getDimensionPixelSize(R.dimen.unlock_falsing_threshold); 207 } 208 209 private void trackMovement(MotionEvent event) { 210 // Add movement to velocity tracker using raw screen X and Y coordinates instead 211 // of window coordinates because the window frame may be moving at the same time. 212 float deltaX = event.getRawX() - event.getX(); 213 float deltaY = event.getRawY() - event.getY(); 214 event.offsetLocation(deltaX, deltaY); 215 if (mVelocityTracker != null) mVelocityTracker.addMovement(event); 216 event.offsetLocation(-deltaX, -deltaY); 217 } 218 219 public void setTouchDisabled(boolean disabled) { 220 mTouchDisabled = disabled; 221 } 222 223 @Override 224 public boolean onTouchEvent(MotionEvent event) { 225 if (mInstantExpanding || mTouchDisabled 226 || (mMotionAborted && event.getActionMasked() != MotionEvent.ACTION_DOWN)) { 227 return false; 228 } 229 230 /* 231 * We capture touch events here and update the expand height here in case according to 232 * the users fingers. This also handles multi-touch. 233 * 234 * If the user just clicks shortly, we give him a quick peek of the shade. 235 * 236 * Flinging is also enabled in order to open or close the shade. 237 */ 238 239 int pointerIndex = event.findPointerIndex(mTrackingPointer); 240 if (pointerIndex < 0) { 241 pointerIndex = 0; 242 mTrackingPointer = event.getPointerId(pointerIndex); 243 } 244 final float x = event.getX(pointerIndex); 245 final float y = event.getY(pointerIndex); 246 247 if (event.getActionMasked() == MotionEvent.ACTION_DOWN) { 248 mGestureWaitForTouchSlop = isFullyCollapsed() || hasConflictingGestures(); 249 mIgnoreXTouchSlop = isFullyCollapsed() || shouldGestureIgnoreXTouchSlop(x, y); 250 } 251 252 switch (event.getActionMasked()) { 253 case MotionEvent.ACTION_DOWN: 254 startExpandMotion(x, y, false /* startTracking */, mExpandedHeight); 255 mJustPeeked = false; 256 mPanelClosedOnDown = isFullyCollapsed(); 257 mHasLayoutedSinceDown = false; 258 mUpdateFlingOnLayout = false; 259 mMotionAborted = false; 260 mPeekTouching = mPanelClosedOnDown; 261 mTouchAboveFalsingThreshold = false; 262 mCollapsedAndHeadsUpOnDown = isFullyCollapsed() 263 && mHeadsUpManager.hasPinnedHeadsUp(); 264 if (mVelocityTracker == null) { 265 initVelocityTracker(); 266 } 267 trackMovement(event); 268 if (!mGestureWaitForTouchSlop || (mHeightAnimator != null && !mHintAnimationRunning) || 269 mPeekPending || mPeekAnimator != null) { 270 cancelHeightAnimator(); 271 cancelPeek(); 272 mTouchSlopExceeded = (mHeightAnimator != null && !mHintAnimationRunning) 273 || mPeekPending || mPeekAnimator != null; 274 onTrackingStarted(); 275 } 276 if (isFullyCollapsed() && !mHeadsUpManager.hasPinnedHeadsUp()) { 277 schedulePeek(); 278 } 279 break; 280 281 case MotionEvent.ACTION_POINTER_UP: 282 final int upPointer = event.getPointerId(event.getActionIndex()); 283 if (mTrackingPointer == upPointer) { 284 // gesture is ongoing, find a new pointer to track 285 final int newIndex = event.getPointerId(0) != upPointer ? 0 : 1; 286 final float newY = event.getY(newIndex); 287 final float newX = event.getX(newIndex); 288 mTrackingPointer = event.getPointerId(newIndex); 289 startExpandMotion(newX, newY, true /* startTracking */, mExpandedHeight); 290 } 291 break; 292 case MotionEvent.ACTION_POINTER_DOWN: 293 if (mStatusBar.getBarState() == StatusBarState.KEYGUARD) { 294 mMotionAborted = true; 295 endMotionEvent(event, x, y, true /* forceCancel */); 296 return false; 297 } 298 break; 299 case MotionEvent.ACTION_MOVE: 300 float h = y - mInitialTouchY; 301 302 // If the panel was collapsed when touching, we only need to check for the 303 // y-component of the gesture, as we have no conflicting horizontal gesture. 304 if (Math.abs(h) > mTouchSlop 305 && (Math.abs(h) > Math.abs(x - mInitialTouchX) 306 || mIgnoreXTouchSlop)) { 307 mTouchSlopExceeded = true; 308 if (mGestureWaitForTouchSlop && !mTracking && !mCollapsedAndHeadsUpOnDown) { 309 if (!mJustPeeked && mInitialOffsetOnTouch != 0f) { 310 startExpandMotion(x, y, false /* startTracking */, mExpandedHeight); 311 h = 0; 312 } 313 cancelHeightAnimator(); 314 removeCallbacks(mPeekRunnable); 315 mPeekPending = false; 316 onTrackingStarted(); 317 } 318 } 319 final float newHeight = Math.max(0, h + mInitialOffsetOnTouch); 320 if (newHeight > mPeekHeight) { 321 if (mPeekAnimator != null) { 322 mPeekAnimator.cancel(); 323 } 324 mJustPeeked = false; 325 } 326 if (-h >= getFalsingThreshold()) { 327 mTouchAboveFalsingThreshold = true; 328 mUpwardsWhenTresholdReached = isDirectionUpwards(x, y); 329 } 330 if (!mJustPeeked && (!mGestureWaitForTouchSlop || mTracking) && !isTrackingBlocked()) { 331 setExpandedHeightInternal(newHeight); 332 } 333 334 trackMovement(event); 335 break; 336 337 case MotionEvent.ACTION_UP: 338 case MotionEvent.ACTION_CANCEL: 339 trackMovement(event); 340 endMotionEvent(event, x, y, false /* forceCancel */); 341 break; 342 } 343 return !mGestureWaitForTouchSlop || mTracking; 344 } 345 346 /** 347 * @return whether the swiping direction is upwards and above a 45 degree angle compared to the 348 * horizontal direction 349 */ 350 private boolean isDirectionUpwards(float x, float y) { 351 float xDiff = x - mInitialTouchX; 352 float yDiff = y - mInitialTouchY; 353 if (yDiff >= 0) { 354 return false; 355 } 356 return Math.abs(yDiff) >= Math.abs(xDiff); 357 } 358 359 protected void startExpandMotion(float newX, float newY, boolean startTracking, 360 float expandedHeight) { 361 mInitialOffsetOnTouch = expandedHeight; 362 mInitialTouchY = newY; 363 mInitialTouchX = newX; 364 if (startTracking) { 365 mTouchSlopExceeded = true; 366 onTrackingStarted(); 367 } 368 } 369 370 private void endMotionEvent(MotionEvent event, float x, float y, boolean forceCancel) { 371 mTrackingPointer = -1; 372 if ((mTracking && mTouchSlopExceeded) 373 || Math.abs(x - mInitialTouchX) > mTouchSlop 374 || Math.abs(y - mInitialTouchY) > mTouchSlop 375 || event.getActionMasked() == MotionEvent.ACTION_CANCEL 376 || forceCancel) { 377 float vel = 0f; 378 float vectorVel = 0f; 379 if (mVelocityTracker != null) { 380 mVelocityTracker.computeCurrentVelocity(1000); 381 vel = mVelocityTracker.getYVelocity(); 382 vectorVel = (float) Math.hypot( 383 mVelocityTracker.getXVelocity(), mVelocityTracker.getYVelocity()); 384 } 385 boolean expand = flingExpands(vel, vectorVel, x, y) 386 || event.getActionMasked() == MotionEvent.ACTION_CANCEL 387 || forceCancel; 388 DozeLog.traceFling(expand, mTouchAboveFalsingThreshold, 389 mStatusBar.isFalsingThresholdNeeded(), 390 mStatusBar.isScreenOnComingFromTouch()); 391 // Log collapse gesture if on lock screen. 392 if (!expand && mStatusBar.getBarState() == StatusBarState.KEYGUARD) { 393 float displayDensity = mStatusBar.getDisplayDensity(); 394 int heightDp = (int) Math.abs((y - mInitialTouchY) / displayDensity); 395 int velocityDp = (int) Math.abs(vel / displayDensity); 396 EventLogTags.writeSysuiLockscreenGesture( 397 EventLogConstants.SYSUI_LOCKSCREEN_GESTURE_SWIPE_UP_UNLOCK, 398 heightDp, velocityDp); 399 } 400 fling(vel, expand, isFalseTouch(x, y)); 401 onTrackingStopped(expand); 402 mUpdateFlingOnLayout = expand && mPanelClosedOnDown && !mHasLayoutedSinceDown; 403 if (mUpdateFlingOnLayout) { 404 mUpdateFlingVelocity = vel; 405 } 406 } else { 407 boolean expands = onEmptySpaceClick(mInitialTouchX); 408 onTrackingStopped(expands); 409 } 410 411 if (mVelocityTracker != null) { 412 mVelocityTracker.recycle(); 413 mVelocityTracker = null; 414 } 415 mPeekTouching = false; 416 } 417 418 private int getFalsingThreshold() { 419 float factor = mStatusBar.isScreenOnComingFromTouch() ? 1.5f : 1.0f; 420 return (int) (mUnlockFalsingThreshold * factor); 421 } 422 423 protected abstract boolean hasConflictingGestures(); 424 425 protected abstract boolean shouldGestureIgnoreXTouchSlop(float x, float y); 426 427 protected void onTrackingStopped(boolean expand) { 428 mTracking = false; 429 mBar.onTrackingStopped(PanelView.this, expand); 430 notifyBarPanelExpansionChanged(); 431 } 432 433 protected void onTrackingStarted() { 434 endClosing(); 435 mTracking = true; 436 mCollapseAfterPeek = false; 437 mBar.onTrackingStarted(PanelView.this); 438 notifyExpandingStarted(); 439 notifyBarPanelExpansionChanged(); 440 } 441 442 @Override 443 public boolean onInterceptTouchEvent(MotionEvent event) { 444 if (mInstantExpanding 445 || (mMotionAborted && event.getActionMasked() != MotionEvent.ACTION_DOWN)) { 446 return false; 447 } 448 449 /* 450 * If the user drags anywhere inside the panel we intercept it if he moves his finger 451 * upwards. This allows closing the shade from anywhere inside the panel. 452 * 453 * We only do this if the current content is scrolled to the bottom, 454 * i.e isScrolledToBottom() is true and therefore there is no conflicting scrolling gesture 455 * possible. 456 */ 457 int pointerIndex = event.findPointerIndex(mTrackingPointer); 458 if (pointerIndex < 0) { 459 pointerIndex = 0; 460 mTrackingPointer = event.getPointerId(pointerIndex); 461 } 462 final float x = event.getX(pointerIndex); 463 final float y = event.getY(pointerIndex); 464 boolean scrolledToBottom = isScrolledToBottom(); 465 466 switch (event.getActionMasked()) { 467 case MotionEvent.ACTION_DOWN: 468 mStatusBar.userActivity(); 469 mAnimatingOnDown = mHeightAnimator != null; 470 if (mAnimatingOnDown && mClosing && !mHintAnimationRunning || mPeekPending || mPeekAnimator != null) { 471 cancelHeightAnimator(); 472 cancelPeek(); 473 mTouchSlopExceeded = true; 474 return true; 475 } 476 mInitialTouchY = y; 477 mInitialTouchX = x; 478 mTouchStartedInEmptyArea = !isInContentBounds(x, y); 479 mTouchSlopExceeded = false; 480 mJustPeeked = false; 481 mMotionAborted = false; 482 mPanelClosedOnDown = isFullyCollapsed(); 483 mCollapsedAndHeadsUpOnDown = false; 484 mHasLayoutedSinceDown = false; 485 mUpdateFlingOnLayout = false; 486 mTouchAboveFalsingThreshold = false; 487 initVelocityTracker(); 488 trackMovement(event); 489 break; 490 case MotionEvent.ACTION_POINTER_UP: 491 final int upPointer = event.getPointerId(event.getActionIndex()); 492 if (mTrackingPointer == upPointer) { 493 // gesture is ongoing, find a new pointer to track 494 final int newIndex = event.getPointerId(0) != upPointer ? 0 : 1; 495 mTrackingPointer = event.getPointerId(newIndex); 496 mInitialTouchX = event.getX(newIndex); 497 mInitialTouchY = event.getY(newIndex); 498 } 499 break; 500 case MotionEvent.ACTION_POINTER_DOWN: 501 if (mStatusBar.getBarState() == StatusBarState.KEYGUARD) { 502 mMotionAborted = true; 503 if (mVelocityTracker != null) { 504 mVelocityTracker.recycle(); 505 mVelocityTracker = null; 506 } 507 } 508 break; 509 case MotionEvent.ACTION_MOVE: 510 final float h = y - mInitialTouchY; 511 trackMovement(event); 512 if (scrolledToBottom || mTouchStartedInEmptyArea || mAnimatingOnDown) { 513 float hAbs = Math.abs(h); 514 if ((h < -mTouchSlop || (mAnimatingOnDown && hAbs > mTouchSlop)) 515 && hAbs > Math.abs(x - mInitialTouchX)) { 516 cancelHeightAnimator(); 517 startExpandMotion(x, y, true /* startTracking */, mExpandedHeight); 518 return true; 519 } 520 } 521 break; 522 case MotionEvent.ACTION_CANCEL: 523 case MotionEvent.ACTION_UP: 524 if (mVelocityTracker != null) { 525 mVelocityTracker.recycle(); 526 mVelocityTracker = null; 527 } 528 break; 529 } 530 return false; 531 } 532 533 /** 534 * @return Whether a pair of coordinates are inside the visible view content bounds. 535 */ 536 protected abstract boolean isInContentBounds(float x, float y); 537 538 private void cancelHeightAnimator() { 539 if (mHeightAnimator != null) { 540 mHeightAnimator.cancel(); 541 } 542 endClosing(); 543 } 544 545 private void endClosing() { 546 if (mClosing) { 547 mClosing = false; 548 onClosingFinished(); 549 } 550 } 551 552 private void initVelocityTracker() { 553 if (mVelocityTracker != null) { 554 mVelocityTracker.recycle(); 555 } 556 mVelocityTracker = VelocityTrackerFactory.obtain(getContext()); 557 } 558 559 protected boolean isScrolledToBottom() { 560 return true; 561 } 562 563 protected float getContentHeight() { 564 return mExpandedHeight; 565 } 566 567 @Override 568 protected void onFinishInflate() { 569 super.onFinishInflate(); 570 loadDimens(); 571 } 572 573 @Override 574 protected void onConfigurationChanged(Configuration newConfig) { 575 super.onConfigurationChanged(newConfig); 576 loadDimens(); 577 } 578 579 /** 580 * @param vel the current vertical velocity of the motion 581 * @param vectorVel the length of the vectorial velocity 582 * @return whether a fling should expands the panel; contracts otherwise 583 */ 584 protected boolean flingExpands(float vel, float vectorVel, float x, float y) { 585 if (isFalseTouch(x, y)) { 586 return true; 587 } 588 if (Math.abs(vectorVel) < mFlingAnimationUtils.getMinVelocityPxPerSecond()) { 589 return getExpandedFraction() > 0.5f; 590 } else { 591 return vel > 0; 592 } 593 } 594 595 /** 596 * @param x the final x-coordinate when the finger was lifted 597 * @param y the final y-coordinate when the finger was lifted 598 * @return whether this motion should be regarded as a false touch 599 */ 600 private boolean isFalseTouch(float x, float y) { 601 if (!mStatusBar.isFalsingThresholdNeeded()) { 602 return false; 603 } 604 if (!mTouchAboveFalsingThreshold) { 605 return true; 606 } 607 if (mUpwardsWhenTresholdReached) { 608 return false; 609 } 610 return !isDirectionUpwards(x, y); 611 } 612 613 protected void fling(float vel, boolean expand) { 614 fling(vel, expand, 1.0f /* collapseSpeedUpFactor */, false); 615 } 616 617 protected void fling(float vel, boolean expand, boolean expandBecauseOfFalsing) { 618 fling(vel, expand, 1.0f /* collapseSpeedUpFactor */, expandBecauseOfFalsing); 619 } 620 621 protected void fling(float vel, boolean expand, float collapseSpeedUpFactor, 622 boolean expandBecauseOfFalsing) { 623 cancelPeek(); 624 float target = expand ? getMaxPanelHeight() : 0.0f; 625 if (!expand) { 626 mClosing = true; 627 } 628 flingToHeight(vel, expand, target, collapseSpeedUpFactor, expandBecauseOfFalsing); 629 } 630 631 protected void flingToHeight(float vel, boolean expand, float target, 632 float collapseSpeedUpFactor, boolean expandBecauseOfFalsing) { 633 // Hack to make the expand transition look nice when clear all button is visible - we make 634 // the animation only to the last notification, and then jump to the maximum panel height so 635 // clear all just fades in and the decelerating motion is towards the last notification. 636 final boolean clearAllExpandHack = expand && fullyExpandedClearAllVisible() 637 && mExpandedHeight < getMaxPanelHeight() - getClearAllHeight() 638 && !isClearAllVisible(); 639 if (clearAllExpandHack) { 640 target = getMaxPanelHeight() - getClearAllHeight(); 641 } 642 if (target == mExpandedHeight || getOverExpansionAmount() > 0f && expand) { 643 notifyExpandingFinished(); 644 return; 645 } 646 mOverExpandedBeforeFling = getOverExpansionAmount() > 0f; 647 ValueAnimator animator = createHeightAnimator(target); 648 if (expand) { 649 if (expandBecauseOfFalsing) { 650 vel = 0; 651 } 652 mFlingAnimationUtils.apply(animator, mExpandedHeight, target, vel, getHeight()); 653 if (expandBecauseOfFalsing) { 654 animator.setDuration(350); 655 } 656 } else { 657 mFlingAnimationUtils.applyDismissing(animator, mExpandedHeight, target, vel, 658 getHeight()); 659 660 // Make it shorter if we run a canned animation 661 if (vel == 0) { 662 animator.setDuration((long) 663 (animator.getDuration() * getCannedFlingDurationFactor() 664 / collapseSpeedUpFactor)); 665 } 666 } 667 animator.addListener(new AnimatorListenerAdapter() { 668 private boolean mCancelled; 669 670 @Override 671 public void onAnimationCancel(Animator animation) { 672 mCancelled = true; 673 } 674 675 @Override 676 public void onAnimationEnd(Animator animation) { 677 if (clearAllExpandHack && !mCancelled) { 678 setExpandedHeightInternal(getMaxPanelHeight()); 679 } 680 mHeightAnimator = null; 681 if (!mCancelled) { 682 notifyExpandingFinished(); 683 } 684 notifyBarPanelExpansionChanged(); 685 } 686 }); 687 mHeightAnimator = animator; 688 animator.start(); 689 } 690 691 @Override 692 protected void onAttachedToWindow() { 693 super.onAttachedToWindow(); 694 mViewName = getResources().getResourceName(getId()); 695 } 696 697 public String getName() { 698 return mViewName; 699 } 700 701 public void setExpandedHeight(float height) { 702 if (DEBUG) logf("setExpandedHeight(%.1f)", height); 703 setExpandedHeightInternal(height + getOverExpansionPixels()); 704 } 705 706 @Override 707 protected void onLayout (boolean changed, int left, int top, int right, int bottom) { 708 super.onLayout(changed, left, top, right, bottom); 709 requestPanelHeightUpdate(); 710 mHasLayoutedSinceDown = true; 711 if (mUpdateFlingOnLayout) { 712 abortAnimations(); 713 fling(mUpdateFlingVelocity, true /* expands */); 714 mUpdateFlingOnLayout = false; 715 } 716 } 717 718 protected void requestPanelHeightUpdate() { 719 float currentMaxPanelHeight = getMaxPanelHeight(); 720 721 // If the user isn't actively poking us, let's update the height 722 if ((!mTracking || isTrackingBlocked()) 723 && mHeightAnimator == null 724 && !isFullyCollapsed() 725 && currentMaxPanelHeight != mExpandedHeight 726 && !mPeekPending 727 && mPeekAnimator == null 728 && !mPeekTouching) { 729 setExpandedHeight(currentMaxPanelHeight); 730 } 731 } 732 733 public void setExpandedHeightInternal(float h) { 734 float fhWithoutOverExpansion = getMaxPanelHeight() - getOverExpansionAmount(); 735 if (mHeightAnimator == null) { 736 float overExpansionPixels = Math.max(0, h - fhWithoutOverExpansion); 737 if (getOverExpansionPixels() != overExpansionPixels && mTracking) { 738 setOverExpansion(overExpansionPixels, true /* isPixels */); 739 } 740 mExpandedHeight = Math.min(h, fhWithoutOverExpansion) + getOverExpansionAmount(); 741 } else { 742 mExpandedHeight = h; 743 if (mOverExpandedBeforeFling) { 744 setOverExpansion(Math.max(0, h - fhWithoutOverExpansion), false /* isPixels */); 745 } 746 } 747 748 mExpandedHeight = Math.max(0, mExpandedHeight); 749 mExpandedFraction = Math.min(1f, fhWithoutOverExpansion == 0 750 ? 0 751 : mExpandedHeight / fhWithoutOverExpansion); 752 onHeightUpdated(mExpandedHeight); 753 notifyBarPanelExpansionChanged(); 754 } 755 756 /** 757 * @return true if the panel tracking should be temporarily blocked; this is used when a 758 * conflicting gesture (opening QS) is happening 759 */ 760 protected abstract boolean isTrackingBlocked(); 761 762 protected abstract void setOverExpansion(float overExpansion, boolean isPixels); 763 764 protected abstract void onHeightUpdated(float expandedHeight); 765 766 protected abstract float getOverExpansionAmount(); 767 768 protected abstract float getOverExpansionPixels(); 769 770 /** 771 * This returns the maximum height of the panel. Children should override this if their 772 * desired height is not the full height. 773 * 774 * @return the default implementation simply returns the maximum height. 775 */ 776 protected abstract int getMaxPanelHeight(); 777 778 public void setExpandedFraction(float frac) { 779 setExpandedHeight(getMaxPanelHeight() * frac); 780 } 781 782 public float getExpandedHeight() { 783 return mExpandedHeight; 784 } 785 786 public float getExpandedFraction() { 787 return mExpandedFraction; 788 } 789 790 public boolean isFullyExpanded() { 791 return mExpandedHeight >= getMaxPanelHeight(); 792 } 793 794 public boolean isFullyCollapsed() { 795 return mExpandedHeight <= 0; 796 } 797 798 public boolean isCollapsing() { 799 return mClosing; 800 } 801 802 public boolean isTracking() { 803 return mTracking; 804 } 805 806 public void setBar(PanelBar panelBar) { 807 mBar = panelBar; 808 } 809 810 public void collapse(boolean delayed, float speedUpFactor) { 811 if (DEBUG) logf("collapse: " + this); 812 if (mPeekPending || mPeekAnimator != null) { 813 mCollapseAfterPeek = true; 814 if (mPeekPending) { 815 816 // We know that the whole gesture is just a peek triggered by a simple click, so 817 // better start it now. 818 removeCallbacks(mPeekRunnable); 819 mPeekRunnable.run(); 820 } 821 } else if (!isFullyCollapsed() && !mTracking && !mClosing) { 822 cancelHeightAnimator(); 823 mClosing = true; 824 notifyExpandingStarted(); 825 if (delayed) { 826 mNextCollapseSpeedUpFactor = speedUpFactor; 827 postDelayed(mFlingCollapseRunnable, 120); 828 } else { 829 fling(0, false /* expand */, speedUpFactor, false /* expandBecauseOfFalsing */); 830 } 831 } 832 } 833 834 private final Runnable mFlingCollapseRunnable = new Runnable() { 835 @Override 836 public void run() { 837 fling(0, false /* expand */, mNextCollapseSpeedUpFactor, 838 false /* expandBecauseOfFalsing */); 839 } 840 }; 841 842 public void expand() { 843 if (DEBUG) logf("expand: " + this); 844 if (isFullyCollapsed()) { 845 mBar.startOpeningPanel(this); 846 notifyExpandingStarted(); 847 fling(0, true /* expand */); 848 } else if (DEBUG) { 849 if (DEBUG) logf("skipping expansion: is expanded"); 850 } 851 } 852 853 public void cancelPeek() { 854 if (mPeekAnimator != null) { 855 mPeekAnimator.cancel(); 856 } 857 removeCallbacks(mPeekRunnable); 858 mPeekPending = false; 859 860 // When peeking, we already tell mBar that we expanded ourselves. Make sure that we also 861 // notify mBar that we might have closed ourselves. 862 notifyBarPanelExpansionChanged(); 863 } 864 865 public void instantExpand() { 866 mInstantExpanding = true; 867 mUpdateFlingOnLayout = false; 868 abortAnimations(); 869 cancelPeek(); 870 if (mTracking) { 871 onTrackingStopped(true /* expands */); // The panel is expanded after this call. 872 } 873 if (mExpanding) { 874 notifyExpandingFinished(); 875 } 876 notifyBarPanelExpansionChanged(); 877 878 // Wait for window manager to pickup the change, so we know the maximum height of the panel 879 // then. 880 getViewTreeObserver().addOnGlobalLayoutListener( 881 new ViewTreeObserver.OnGlobalLayoutListener() { 882 @Override 883 public void onGlobalLayout() { 884 if (mStatusBar.getStatusBarWindow().getHeight() 885 != mStatusBar.getStatusBarHeight()) { 886 getViewTreeObserver().removeOnGlobalLayoutListener(this); 887 setExpandedFraction(1f); 888 mInstantExpanding = false; 889 } 890 } 891 }); 892 893 // Make sure a layout really happens. 894 requestLayout(); 895 } 896 897 public void instantCollapse() { 898 abortAnimations(); 899 setExpandedFraction(0f); 900 if (mExpanding) { 901 notifyExpandingFinished(); 902 } 903 } 904 905 private void abortAnimations() { 906 cancelPeek(); 907 cancelHeightAnimator(); 908 removeCallbacks(mPostCollapseRunnable); 909 removeCallbacks(mFlingCollapseRunnable); 910 } 911 912 protected void onClosingFinished() { 913 mBar.onClosingFinished(); 914 } 915 916 917 protected void startUnlockHintAnimation() { 918 919 // We don't need to hint the user if an animation is already running or the user is changing 920 // the expansion. 921 if (mHeightAnimator != null || mTracking) { 922 return; 923 } 924 cancelPeek(); 925 notifyExpandingStarted(); 926 startUnlockHintAnimationPhase1(new Runnable() { 927 @Override 928 public void run() { 929 notifyExpandingFinished(); 930 mStatusBar.onHintFinished(); 931 mHintAnimationRunning = false; 932 } 933 }); 934 mStatusBar.onUnlockHintStarted(); 935 mHintAnimationRunning = true; 936 } 937 938 /** 939 * Phase 1: Move everything upwards. 940 */ 941 private void startUnlockHintAnimationPhase1(final Runnable onAnimationFinished) { 942 float target = Math.max(0, getMaxPanelHeight() - mHintDistance); 943 ValueAnimator animator = createHeightAnimator(target); 944 animator.setDuration(250); 945 animator.setInterpolator(mFastOutSlowInInterpolator); 946 animator.addListener(new AnimatorListenerAdapter() { 947 private boolean mCancelled; 948 949 @Override 950 public void onAnimationCancel(Animator animation) { 951 mCancelled = true; 952 } 953 954 @Override 955 public void onAnimationEnd(Animator animation) { 956 if (mCancelled) { 957 mHeightAnimator = null; 958 onAnimationFinished.run(); 959 } else { 960 startUnlockHintAnimationPhase2(onAnimationFinished); 961 } 962 } 963 }); 964 animator.start(); 965 mHeightAnimator = animator; 966 mKeyguardBottomArea.getIndicationView().animate() 967 .translationY(-mHintDistance) 968 .setDuration(250) 969 .setInterpolator(mFastOutSlowInInterpolator) 970 .withEndAction(new Runnable() { 971 @Override 972 public void run() { 973 mKeyguardBottomArea.getIndicationView().animate() 974 .translationY(0) 975 .setDuration(450) 976 .setInterpolator(mBounceInterpolator) 977 .start(); 978 } 979 }) 980 .start(); 981 } 982 983 /** 984 * Phase 2: Bounce down. 985 */ 986 private void startUnlockHintAnimationPhase2(final Runnable onAnimationFinished) { 987 ValueAnimator animator = createHeightAnimator(getMaxPanelHeight()); 988 animator.setDuration(450); 989 animator.setInterpolator(mBounceInterpolator); 990 animator.addListener(new AnimatorListenerAdapter() { 991 @Override 992 public void onAnimationEnd(Animator animation) { 993 mHeightAnimator = null; 994 onAnimationFinished.run(); 995 notifyBarPanelExpansionChanged(); 996 } 997 }); 998 animator.start(); 999 mHeightAnimator = animator; 1000 } 1001 1002 private ValueAnimator createHeightAnimator(float targetHeight) { 1003 ValueAnimator animator = ValueAnimator.ofFloat(mExpandedHeight, targetHeight); 1004 animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() { 1005 @Override 1006 public void onAnimationUpdate(ValueAnimator animation) { 1007 setExpandedHeightInternal((Float) animation.getAnimatedValue()); 1008 } 1009 }); 1010 return animator; 1011 } 1012 1013 protected void notifyBarPanelExpansionChanged() { 1014 mBar.panelExpansionChanged(this, mExpandedFraction, mExpandedFraction > 0f || mPeekPending 1015 || mPeekAnimator != null || mInstantExpanding || mHeadsUpManager.hasPinnedHeadsUp() 1016 || mTracking || mHeightAnimator != null); 1017 } 1018 1019 /** 1020 * Gets called when the user performs a click anywhere in the empty area of the panel. 1021 * 1022 * @return whether the panel will be expanded after the action performed by this method 1023 */ 1024 protected boolean onEmptySpaceClick(float x) { 1025 if (mHintAnimationRunning) { 1026 return true; 1027 } 1028 return onMiddleClicked(); 1029 } 1030 1031 protected final Runnable mPostCollapseRunnable = new Runnable() { 1032 @Override 1033 public void run() { 1034 collapse(false /* delayed */, 1.0f /* speedUpFactor */); 1035 } 1036 }; 1037 1038 protected abstract boolean onMiddleClicked(); 1039 1040 protected abstract boolean isDozing(); 1041 1042 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 1043 pw.println(String.format("[PanelView(%s): expandedHeight=%f maxPanelHeight=%d closing=%s" 1044 + " tracking=%s justPeeked=%s peekAnim=%s%s timeAnim=%s%s touchDisabled=%s" 1045 + "]", 1046 this.getClass().getSimpleName(), 1047 getExpandedHeight(), 1048 getMaxPanelHeight(), 1049 mClosing?"T":"f", 1050 mTracking?"T":"f", 1051 mJustPeeked?"T":"f", 1052 mPeekAnimator, ((mPeekAnimator!=null && mPeekAnimator.isStarted())?" (started)":""), 1053 mHeightAnimator, ((mHeightAnimator !=null && mHeightAnimator.isStarted())?" (started)":""), 1054 mTouchDisabled?"T":"f" 1055 )); 1056 } 1057 1058 public abstract void resetViews(); 1059 1060 protected abstract float getPeekHeight(); 1061 1062 protected abstract float getCannedFlingDurationFactor(); 1063 1064 /** 1065 * @return whether "Clear all" button will be visible when the panel is fully expanded 1066 */ 1067 protected abstract boolean fullyExpandedClearAllVisible(); 1068 1069 protected abstract boolean isClearAllVisible(); 1070 1071 /** 1072 * @return the height of the clear all button, in pixels 1073 */ 1074 protected abstract int getClearAllHeight(); 1075 1076 public void setHeadsUpManager(HeadsUpManager headsUpManager) { 1077 mHeadsUpManager = headsUpManager; 1078 } 1079} 1080