Example usage for android.support.v4.view ScrollingView computeVerticalScrollExtent

Introduction

In this page you can find the example usage for android.support.v4.view ScrollingView computeVerticalScrollExtent.

Prototype

int computeVerticalScrollExtent();

Source Link

Document

Compute the vertical extent of the vertical scrollbar's thumb within the vertical range.

Usage

From source file:com.callba.phone.widget.refreshlayout.RefreshLayout.java

/**
 * @return {@code true} if child view almost scroll to bottom.
 *///  w ww. j av a  2  s. c  o  m
public boolean isAlmostBottom() {
    if (mTarget instanceof AbsListView) {
        final AbsListView absListView = (AbsListView) mTarget;
        return absListView.getLastVisiblePosition() >= absListView.getCount() - 1;
    } else if (mTarget instanceof ScrollingView) {
        final ScrollingView scrollingView = (ScrollingView) mTarget;
        final int offset = scrollingView.computeVerticalScrollOffset();
        final int range = scrollingView.computeVerticalScrollRange()
                - scrollingView.computeVerticalScrollExtent();
        return offset >= range;
    } else {
        return !ViewCompat.canScrollVertically(mTarget, 1);
    }
}

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From source file:com.hippo.refreshlayout.RefreshLayout.java

/**
 * @return {@code true} if child view almost scroll to bottom.
 */// w w  w.j  av  a  2 s.  c  o m
public boolean isAlmostBottom() {
    if (null == mTarget) {
        return false;
    }

    if (mTarget instanceof AbsListView) {
        final AbsListView absListView = (AbsListView) mTarget;
        return absListView.getLastVisiblePosition() >= absListView.getCount() - 1;
    } else if (mTarget instanceof ScrollingView) {
        final ScrollingView scrollingView = (ScrollingView) mTarget;
        final int offset = scrollingView.computeVerticalScrollOffset();
        final int range = scrollingView.computeVerticalScrollRange()
                - scrollingView.computeVerticalScrollExtent();
        return offset >= range;
    } else {
        return !ViewCompat.canScrollVertically(mTarget, 1);
    }
}

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