Android7.1 锁屏滑动无法解锁 Notification Keyguard 显示通知锁屏

问题：屏幕太大，滑动距离太大，并且滑动不流畅导致无法解锁

Notification Keyguard 显示通知锁屏 显示分析

一般情况下解锁根据滑动Y距离的长度和速度，再根据一些因数处理，通过阀值完成解锁。

一.PaneView.java

frameworks\base\packages\SystemUI\src\com\android\systemui\statusbar\phone\PanelView.java

public boolean onTouchEvent(MotionEvent event) {  

          private int getFalsingThreshold() {

                      protected void loadDimens() {

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@Override public boolean onTouchEvent(MotionEvent event) {     if (mInstantExpanding || mTouchDisabled             || (mMotionAborted && event.getActionMasked() != MotionEvent.ACTION_DOWN)) {         return false;     }       // On expanding, single mouse click expands the panel instead of dragging.     String platform = SystemProperties.get("ro.board.platform");     if (isFullyCollapsed() && event.isFromSource(InputDevice.SOURCE_MOUSE)             && !"rk312x".equals(platform) && !"rk3126c".equals(platform)     && !"rk3399".equals(platform)) {         if (event.getAction() == MotionEvent.ACTION_UP) {             expand(true);         }         return true;     }       /*      * We capture touch events here and update the expand height here in case according to      * the users fingers. This also handles multi-touch.      *      * If the user just clicks shortly, we show a quick peek of the shade.      *      * Flinging is also enabled in order to open or close the shade.      */       int pointerIndex = event.findPointerIndex(mTrackingPointer);     if (pointerIndex < 0) {         pointerIndex = 0;         mTrackingPointer = event.getPointerId(pointerIndex);     }     final float x = event.getX(pointerIndex);     final float y = event.getY(pointerIndex);       if (event.getActionMasked() == MotionEvent.ACTION_DOWN) {         mGestureWaitForTouchSlop = isFullyCollapsed() || hasConflictingGestures();         mIgnoreXTouchSlop = isFullyCollapsed() || shouldGestureIgnoreXTouchSlop(x, y);     }       switch (event.getActionMasked()) {         case MotionEvent.ACTION_DOWN:             startExpandMotion(x, y, false /* startTracking */, mExpandedHeight);             mJustPeeked = false;             mPanelClosedOnDown = isFullyCollapsed();             mHasLayoutedSinceDown = false;             mUpdateFlingOnLayout = false;             mMotionAborted = false;             mPeekTouching = mPanelClosedOnDown;             mTouchAboveFalsingThreshold = false;             mCollapsedAndHeadsUpOnDown = isFullyCollapsed()                     && mHeadsUpManager.hasPinnedHeadsUp();             if (mVelocityTracker == null) {                 initVelocityTracker();             }             trackMovement(event);             if (!mGestureWaitForTouchSlop || (mHeightAnimator != null && !mHintAnimationRunning) ||                     mPeekPending || mPeekAnimator != null) {                 cancelHeightAnimator();                 cancelPeek();                 mTouchSlopExceeded = (mHeightAnimator != null && !mHintAnimationRunning)                         || mPeekPending || mPeekAnimator != null;                 onTrackingStarted();             }             if (isFullyCollapsed() && !mHeadsUpManager.hasPinnedHeadsUp()) {                 schedulePeek();             }             break;           case MotionEvent.ACTION_POINTER_UP:             final int upPointer = event.getPointerId(event.getActionIndex());             if (mTrackingPointer == upPointer) {                 // gesture is ongoing, find a new pointer to track                 final int newIndex = event.getPointerId(0) != upPointer ? 0 : 1;                 final float newY = event.getY(newIndex);                 final float newX = event.getX(newIndex);                 mTrackingPointer = event.getPointerId(newIndex);                 startExpandMotion(newX, newY, true /* startTracking */, mExpandedHeight);             }             break;         case MotionEvent.ACTION_POINTER_DOWN:             if (mStatusBar.getBarState() == StatusBarState.KEYGUARD) {                 mMotionAborted = true;                 endMotionEvent(event, x, y, true /* forceCancel */);                 return false;             }             break;         case MotionEvent.ACTION_MOVE:             float h = y - mInitialTouchY;               // If the panel was collapsed when touching, we only need to check for the             // y-component of the gesture, as we have no conflicting horizontal gesture.             if (Math.abs(h) > mTouchSlop                     && (Math.abs(h) > Math.abs(x - mInitialTouchX)                             || mIgnoreXTouchSlop)) {                 mTouchSlopExceeded = true;                 if (mGestureWaitForTouchSlop && !mTracking && !mCollapsedAndHeadsUpOnDown) {                     if (!mJustPeeked && mInitialOffsetOnTouch != 0f) {                         startExpandMotion(x, y, false /* startTracking */, mExpandedHeight);                         h = 0;                     }                     cancelHeightAnimator();                     removeCallbacks(mPeekRunnable);                     mPeekPending = false;                     onTrackingStarted();                 }             }             final float newHeight = Math.max(0, h + mInitialOffsetOnTouch);             if (newHeight > mPeekHeight) {                 if (mPeekAnimator != null) {                     mPeekAnimator.cancel();                 }                 mJustPeeked = false;             }             Log.d("gatsby","-h ->"+-h+" getFalsingThreshold()->"+getFalsingThreshold());//This             if (-h >= getFalsingThreshold()) {                 mTouchAboveFalsingThreshold = true;                 mUpwardsWhenTresholdReached = isDirectionUpwards(x, y);             }             if (!mJustPeeked && (!mGestureWaitForTouchSlop || mTracking) && !isTrackingBlocked()) {                 setExpandedHeightInternal(newHeight);             }               trackMovement(event);             break;           case MotionEvent.ACTION_UP:         case MotionEvent.ACTION_CANCEL:             trackMovement(event);             endMotionEvent(event, x, y, false /* forceCancel */);             break;     }     return !mGestureWaitForTouchSlop || mTracking; }

 这个阈值是在如下文件中定义的, 它是用下面的值乘以一个因子(1.5)之后得到这个Y-距离.

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private int getFalsingThreshold() {     float factor = mStatusBar.isWakeUpComingFromTouch() ? 1.5f : 1.0f;     return (int) (mUnlockFalsingThreshold * factor); }

 解析配置文件

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protected void loadDimens() {     final Resources res = getContext().getResources();     final ViewConfiguration configuration = ViewConfiguration.get(getContext());     mTouchSlop = configuration.getScaledTouchSlop();     mHintDistance = res.getDimension(R.dimen.hint_move_distance);     mUnlockFalsingThreshold = res.getDimensionPixelSize(R.dimen.unlock_falsing_threshold); }

 二.Gatsby patch

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diff --git a/frameworks/base/packages/SystemUI/res/values/dimens.xml b/frameworks/base/packages/SystemUI/res/values/dimens.xml old mode 100644 new mode 100755 index e159501..630257c --- a/frameworks/base/packages/SystemUI/res/values/dimens.xml +++ b/frameworks/base/packages/SystemUI/res/values/dimens.xml @@ -272,7 +272,7 @@      <dimen name="speed_bump_height">16dp</dimen>         <!-- Lockscreen unlocking falsing threshold. --> -    <dimen name="unlock_falsing_threshold">80dp</dimen> +    <dimen name="unlock_falsing_threshold">30dp</dimen>         <!-- Lockscreen falsing threshold for quick settings. -->      <dimen name="qs_falsing_threshold">60dp</dimen> diff --git a/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PanelView.java b/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PanelView.java index 6587520..3c1bc53 100755 --- a/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PanelView.java +++ b/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PanelView.java @@ -331,6 +331,7 @@ public abstract class PanelView extends FrameLayout {                      }                      mJustPeeked = false;                  } +               Log.d("gatsby","-h ->"+-h+" getFalsingThreshold()->"+getFalsingThreshold());                  if (-h >= getFalsingThreshold()) {                      mTouchAboveFalsingThreshold = true;                      mUpwardsWhenTresholdReached = isDirectionUpwards(x, y);