Example usage for android.support.v4.view.accessibility AccessibilityNodeInfoCompat setFocusable

Introduction

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

Prototype

public void setFocusable(boolean focusable) 

Source Link

Document

Sets whether this node is focusable.

Usage

From source file:com.android.launcher3.accessibility.DragAndDropAccessibilityDelegate.java

@Override
protected void onPopulateNodeForVirtualView(int id, AccessibilityNodeInfoCompat node) {
    if (id == INVALID_ID) {
        throw new IllegalArgumentException("Invalid virtual view id");
    }// ww  w.  ja va 2s. co m

    node.setContentDescription(getLocationDescriptionForIconDrop(id));
    node.setBoundsInParent(getItemBounds(id));

    node.addAction(AccessibilityNodeInfoCompat.ACTION_CLICK);
    node.setClickable(true);
    node.setFocusable(true);
}

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From source file:com.facebook.litho.widget.TextSpec.java

@OnPopulateExtraAccessibilityNode
static void onPopulateExtraAccessibilityNode(AccessibilityNodeInfoCompat node, int extraNodeIndex,
        int componentBoundsLeft, int componentBoundsTop, @Prop(resType = STRING) CharSequence text,
        @FromBoundsDefined Layout textLayout, @FromBoundsDefined ClickableSpan[] clickableSpans) {
    final Spanned spanned = (Spanned) text;

    final ClickableSpan span = clickableSpans[extraNodeIndex];
    final int start = spanned.getSpanStart(span);
    final int end = spanned.getSpanEnd(span);
    final int startLine = textLayout.getLineForOffset(start);
    final int endLine = textLayout.getLineForOffset(end);

    // The bounds for multi-line strings should *only* include the first line.  This is because
    // Talkback triggers its click at the center point of these bounds, and if that center point
    // is outside the spannable, it will click on something else.  There is no harm in not outlining
    // the wrapped part of the string, as the text for the whole string will be read regardless of
    // the bounding box.
    final int selectionPathEnd = startLine == endLine ? end : textLayout.getLineVisibleEnd(startLine);

    textLayout.getSelectionPath(start, selectionPathEnd, sTempPath);
    sTempPath.computeBounds(sTempRectF, /* unused */true);

    sTempRect.set(componentBoundsLeft + (int) sTempRectF.left, componentBoundsTop + (int) sTempRectF.top,
            componentBoundsLeft + (int) sTempRectF.right, componentBoundsTop + (int) sTempRectF.bottom);

    if (sTempRect.isEmpty()) {
        // Text is not actually visible.
        // Override bounds so it doesn't crash ExploreByTouchHelper.java
        sTempRect.set(0, 0, 1, 1);/* ww  w  .  ja v  a2  s. c  o m*/
        node.setBoundsInParent(sTempRect);
        node.setContentDescription(""); // make node non-focusable
        return;
    }

    node.setBoundsInParent(sTempRect);

    node.setClickable(true);
    node.setFocusable(true);
    node.setEnabled(true);
    node.setVisibleToUser(true);
    if (span instanceof AccessibleClickableSpan) {
        node.setText(((AccessibleClickableSpan) span).getAccessibilityDescription());
    } else {
        node.setText(spanned.subSequence(start, end));
    }
}

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