/**
* @return Whether it is possible for the child view of this layout to scroll up. Override this if
* the child view is a custom view.
*/
public boolean canChildScrollUp() {
if (android.os.Build.VERSION.SDK_INT < 14) {
if (mTarget instanceof AbsListView) {
final AbsListView absListView = (AbsListView) mTarget;
return absListView.getChildCount() > 0
&& (absListView.getFirstVisiblePosition() > 0
|| absListView.getChildAt(0).getTop() < absListView.getPaddingTop());
} else {
return ViewCompat.canScrollVertically(mTarget, -1) || mTarget.getScrollY() > 0;
}
} else {
return ViewCompat.canScrollVertically(mTarget, -1);
}
}
public boolean canChildScrollUp() {
if (Build.VERSION.SDK_INT < 14) {
if ((this.mTarget instanceof AbsListView)) {
AbsListView absListView = (AbsListView) this.mTarget;
return (absListView.getChildCount() > 0)
&& ((absListView.getFirstVisiblePosition() > 0)
|| (absListView.getChildAt(0).getTop() < absListView.getPaddingTop()));
}
return (ViewCompat.canScrollVertically(this.mTarget, -1)) || (this.mTarget.getScrollY() > 0);
}
return ViewCompat.canScrollVertically(this.mTarget, -1);
}
@Override
public boolean canChildScrollUp() {
if (mScrollUpChild != null) {
return ViewCompat.canScrollVertically(mScrollUpChild, -1);
}
return super.canChildScrollUp();
}
@Override
public boolean canScrollVertically(int direction) {
if (android.os.Build.VERSION.SDK_INT < 14) {
if (mTargetView instanceof AdapterView) {
return canListScroll(direction);
} else {
return direction < 0
? mTargetView.getScrollY() > 0
: mTargetView.getScrollY() < mTargetView.getMeasuredHeight();
}
} else {
return ViewCompat.canScrollVertically(mTargetView, direction);
}
}
public boolean canChildScrollDown() {
if (android.os.Build.VERSION.SDK_INT < 14) {
if (mTarget instanceof AbsListView) {
final AbsListView absListView = (AbsListView) mTarget;
View lastChild = absListView.getChildAt(absListView.getChildCount() - 1);
if (lastChild != null) {
return (absListView.getLastVisiblePosition() == (absListView.getCount() - 1))
&& lastChild.getBottom() > absListView.getPaddingBottom();
} else {
return false;
}
} else {
return mTarget.getHeight() - mTarget.getScrollY() > 0;
}
} else {
return ViewCompat.canScrollVertically(mTarget, 1);
}
}
public static boolean canViewScrollUp(View view) {
if (view == null) {
return false;
}
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
if (view instanceof AbsListView) {
final AbsListView absListView = (AbsListView) view;
if (absListView.getChildCount() == 0) {
return false;
}
return absListView.getFirstVisiblePosition() > 0
|| absListView.getChildAt(0).getTop() < absListView.getPaddingTop();
} else {
return view.getScrollY() > 0;
}
} else {
return ViewCompat.canScrollVertically(view, -1);
}
}
@Override
public boolean canSwipeRefreshChildScrollUp() {
return ViewCompat.canScrollVertically(mNodeListView, -1);
}
/**
* @return Whether it is possible for the child view of this layout to scroll up. Override this if
* the child view is a custom view.
*/
private boolean canScrollDown(RecyclerView recyclerView) {
return ViewCompat.canScrollVertically(recyclerView, 1);
}
public boolean canChildScrollDown() {
return ViewCompat.canScrollVertically(scrollChild, 1);
}
public boolean onInterceptTouchEvent(MotionEvent var1) {
boolean var4 = true;
int var2 = var1.getAction();
if (var2 == 2 && this.mIsBeingDragged) {
return true;
} else if (this.getScrollY() == 0 && !ViewCompat.canScrollVertically(this, 1)) {
return false;
} else {
switch (var2 & 255) {
case 0:
var2 = (int) var1.getY();
if (!this.inChild((int) var1.getX(), var2)) {
this.mIsBeingDragged = false;
this.recycleVelocityTracker();
} else {
this.mLastMotionY = var2;
this.mActivePointerId = MotionEventCompat.getPointerId(var1, 0);
this.initOrResetVelocityTracker();
this.mVelocityTracker.addMovement(var1);
if (this.mScroller.isFinished()) {
var4 = false;
}
this.mIsBeingDragged = var4;
this.startNestedScroll(2);
}
break;
case 1:
case 3:
this.mIsBeingDragged = false;
this.mActivePointerId = -1;
this.recycleVelocityTracker();
this.stopNestedScroll();
break;
case 2:
var2 = this.mActivePointerId;
if (var2 != -1) {
int var3 = MotionEventCompat.findPointerIndex(var1, var2);
if (var3 == -1) {
Log.e("NestedScrollView", "Invalid pointerId=" + var2 + " in onInterceptTouchEvent");
} else {
var2 = (int) MotionEventCompat.getY(var1, var3);
if (Math.abs(var2 - this.mLastMotionY) > this.mTouchSlop
&& (this.getNestedScrollAxes() & 2) == 0) {
this.mIsBeingDragged = true;
this.mLastMotionY = var2;
this.initVelocityTrackerIfNotExists();
this.mVelocityTracker.addMovement(var1);
this.mNestedYOffset = 0;
ViewParent var5 = this.getParent();
if (var5 != null) {
var5.requestDisallowInterceptTouchEvent(true);
}
}
}
}
case 4:
case 5:
default:
break;
case 6:
this.onSecondaryPointerUp(var1);
}
return this.mIsBeingDragged;
}
}
