Add distance threshold for assistant gesture fling
It was possible to invoke the assistant accidentally. This change
adds a minimum distance threshold before we register a fling (the
same distance as used for drag, 55dp).
Bug: 137106918
Test: manual; tested that accidental flings were much more difficult,
but intentional invocations were still easy to register
Change-Id: I40c8bd43c1a28c7b161467804a1e44746b8e92ef
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/AssistantTouchConsumer.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/AssistantTouchConsumer.java
index 38b5a13..346969e 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/AssistantTouchConsumer.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/inputconsumers/AssistantTouchConsumer.java
@@ -1,3 +1,4 @@
+
/*
* Copyright (C) 2019 The Android Open Source Project
*
@@ -82,7 +83,8 @@
private int mDirection;
private ActivityControlHelper mActivityControlHelper;
- private final float mDistThreshold;
+ private final float mDragDistThreshold;
+ private final float mFlingDistThreshold;
private final long mTimeThreshold;
private final int mAngleThreshold;
private final float mSquaredSlop;
@@ -97,7 +99,8 @@
final Resources res = context.getResources();
mContext = context;
mSysUiProxy = systemUiProxy;
- mDistThreshold = res.getDimension(R.dimen.gestures_assistant_drag_threshold);
+ mDragDistThreshold = res.getDimension(R.dimen.gestures_assistant_drag_threshold);
+ mFlingDistThreshold = res.getDimension(R.dimen.gestures_assistant_fling_threshold);
mTimeThreshold = res.getInteger(R.integer.assistant_gesture_min_time_threshold);
mAngleThreshold = res.getInteger(R.integer.assistant_gesture_corner_deg_threshold);
@@ -117,8 +120,6 @@
@Override
public void onMotionEvent(MotionEvent ev) {
// TODO add logging
- mGestureDetector.onTouchEvent(ev);
-
switch (ev.getActionMasked()) {
case ACTION_DOWN: {
mActivePointerId = ev.getPointerId(0);
@@ -213,6 +214,8 @@
break;
}
+ mGestureDetector.onTouchEvent(ev);
+
if (mState != STATE_ACTIVE) {
mDelegate.onMotionEvent(ev);
}
@@ -220,9 +223,9 @@
private void updateAssistantProgress() {
if (!mLaunchedAssistant) {
- mLastProgress = Math.min(mDistance * 1f / mDistThreshold, 1) * mTimeFraction;
+ mLastProgress = Math.min(mDistance * 1f / mDragDistThreshold, 1) * mTimeFraction;
try {
- if (mDistance >= mDistThreshold && mTimeFraction >= 1) {
+ if (mDistance >= mDragDistThreshold && mTimeFraction >= 1) {
mSysUiProxy.onAssistantGestureCompletion(0);
startAssistantInternal(SWIPE);
@@ -271,7 +274,9 @@
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
if (isValidAssistantGestureAngle(velocityX, -velocityY)
- && !mLaunchedAssistant && mState != STATE_DELEGATE_ACTIVE) {
+ && mDistance >= mFlingDistThreshold
+ && !mLaunchedAssistant
+ && mState != STATE_DELEGATE_ACTIVE) {
mLastProgress = 1;
try {
mSysUiProxy.onAssistantGestureCompletion(
diff --git a/quickstep/res/values/dimens.xml b/quickstep/res/values/dimens.xml
index b0968f9..78424ca 100644
--- a/quickstep/res/values/dimens.xml
+++ b/quickstep/res/values/dimens.xml
@@ -69,6 +69,7 @@
<!-- Distance from the vertical edges of the screen in which assist gestures are recognized -->
<dimen name="gestures_assistant_width">48dp</dimen>
<dimen name="gestures_assistant_drag_threshold">55dp</dimen>
+ <dimen name="gestures_assistant_fling_threshold">55dp</dimen>
<!-- Distance to move elements when swiping up to go home from launcher -->
<dimen name="home_pullback_distance">28dp</dimen>