Example usage for android.support.v4.view.accessibility AccessibilityRecordCompat setFromIndex

Introduction

In this page you can find the example usage for android.support.v4.view.accessibility AccessibilityRecordCompat setFromIndex.

Prototype

public void setFromIndex(int fromIndex) 

Source Link

Document

Sets the index of the first character of the changed sequence or the beginning of a text selection or the index of the first visible item when scrolling.

Usage

From source file:android.support.v7.widget.ChatLinearLayoutManager.java

@Override
public void onInitializeAccessibilityEvent(AccessibilityEvent event) {
    super.onInitializeAccessibilityEvent(event);
    if (getChildCount() > 0) {
        final AccessibilityRecordCompat record = AccessibilityEventCompat.asRecord(event);
        record.setFromIndex(findFirstVisibleItemPosition());
        record.setToIndex(findLastVisibleItemPosition());
    }//  ww  w.  ja  v  a  2 s  .c  o  m
}

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From source file:android.support.v7.widget.StaggeredGridLayoutManager2.java

@Override
public void onInitializeAccessibilityEvent(AccessibilityEvent event) {
    super.onInitializeAccessibilityEvent(event);
    if (getChildCount() > 0) {
        final AccessibilityRecordCompat record = AccessibilityEventCompat.asRecord(event);
        final View start = findFirstVisibleItemClosestToStart(false);
        final View end = findFirstVisibleItemClosestToEnd(false);
        if (start == null || end == null) {
            return;
        }/*  ww w.ja va  2 s . c  om*/
        final int startPos = getPosition(start);
        final int endPos = getPosition(end);
        if (startPos < endPos) {
            record.setFromIndex(startPos);
            record.setToIndex(endPos);
        } else {
            record.setFromIndex(endPos);
            record.setToIndex(startPos);
        }
    }
}

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From source file:android.support.v7.widget.StaggeredGridLayoutManager.java

@Override
public void onInitializeAccessibilityEvent(AccessibilityEvent event) {
    super.onInitializeAccessibilityEvent(event);
    if (getChildCount() > 0) {
        final AccessibilityRecordCompat record = AccessibilityEventCompat.asRecord(event);
        final View start = findFirstVisibleItemClosestToStart(false, true);
        final View end = findFirstVisibleItemClosestToEnd(false, true);
        if (start == null || end == null) {
            return;
        }/*w w w .  j  a v  a2  s  .  c o m*/
        final int startPos = getPosition(start);
        final int endPos = getPosition(end);
        if (startPos < endPos) {
            record.setFromIndex(startPos);
            record.setToIndex(endPos);
        } else {
            record.setFromIndex(endPos);
            record.setToIndex(startPos);
        }
    }
}

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