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

Introduction

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

Prototype

public void getBoundsInParent(Rect outBounds) 

Source Link

Document

Gets the node bounds in parent coordinates.

Usage

From source file:Main.java

public static Rect getBoundsInParent(AccessibilityNodeInfoCompat nodeInfo) {
    Rect rect = new Rect();
    nodeInfo.getBoundsInParent(rect);
    return rect;//www .j a v  a 2s .  c o m
}

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

@Override
protected void onPopulateNodeForVirtualView(int id, AccessibilityNodeInfoCompat node) {
    super.onPopulateNodeForVirtualView(id, node);

    // ExploreByTouchHelper does not currently handle view scale.
    // Update BoundsInScreen to appropriate value.
    DragLayer dragLayer = Launcher.getLauncher(mView.getContext()).getDragLayer();
    mTempCords[0] = mTempCords[1] = 0;//from www  . jav a 2s  .c  om
    float scale = dragLayer.getDescendantCoordRelativeToSelf(mView, mTempCords);

    node.getBoundsInParent(mTempRect);
    mTempRect.left = mTempCords[0] + (int) (mTempRect.left * scale);
    mTempRect.right = mTempCords[0] + (int) (mTempRect.right * scale);
    mTempRect.top = mTempCords[1] + (int) (mTempRect.top * scale);
    mTempRect.bottom = mTempCords[1] + (int) (mTempRect.bottom * scale);
    node.setBoundsInScreen(mTempRect);
}

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From source file:com.android.utils.ExploreByTouchHelper.java

/**
 * Constructs and returns an {@link AccessibilityNodeInfoCompat} for the
 * parent view populated with its virtual descendants.
 *
 * @return An {@link AccessibilityNodeInfoCompat} for the parent view.
 *///from  w w  w  .  ja  v  a  2  s  .c o m
private AccessibilityNodeInfoCompat getNodeForHost() {
    // Since we don't want the parent to be focusable, but we can't remove
    // actions from a node, copy over the necessary fields.
    final AccessibilityNodeInfoCompat result = AccessibilityNodeInfoCompat.obtain(mHost);
    final AccessibilityNodeInfoCompat source = AccessibilityNodeInfoCompat.obtain(mHost);
    ViewCompat.onInitializeAccessibilityNodeInfo(mHost, source);

    // Copy over parent and screen bounds.
    source.getBoundsInParent(mTempParentRect);
    source.getBoundsInScreen(mTempScreenRect);
    result.setBoundsInParent(mTempParentRect);
    result.setBoundsInScreen(mTempScreenRect);

    // Set up the parent view, if applicable.
    final ViewParent parent = ViewCompat.getParentForAccessibility(mHost);
    if (parent instanceof View) {
        result.setParent((View) parent);
    }

    // Populate the minimum required fields.
    result.setVisibleToUser(source.isVisibleToUser());
    result.setPackageName(source.getPackageName());
    result.setClassName(source.getClassName());

    // Add the fake root node.
    result.addChild(mHost, ROOT_ID);

    return result;
}

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From source file:com.googlecode.eyesfree.utils.ExploreByTouchHelper.java

/**
 * Constructs and returns an {@link AccessibilityNodeInfoCompat} for the
 * parent view populated with its virtual descendants.
 *
 * @return An {@link AccessibilityNodeInfoCompat} for the parent view.
 */// w ww  .  j a  va2s.co  m
private AccessibilityNodeInfoCompat getNodeForHost() {
    // Since we don't want the parent to be focusable, but we can't remove
    // actions from a node, copy over the necessary fields.
    final AccessibilityNodeInfoCompat result = AccessibilityNodeInfoCompat.obtain(mHost);
    final AccessibilityNodeInfoCompat source = AccessibilityNodeInfoCompat.obtain(mHost);
    ViewCompat.onInitializeAccessibilityNodeInfo(mHost, source);

    // Copy over parent and screen bounds.
    source.getBoundsInParent(mTempParentRect);
    source.getBoundsInScreen(mTempScreenRect);
    result.setBoundsInParent(mTempParentRect);
    result.setBoundsInScreen(mTempScreenRect);

    // Set up the parent view, if applicable.
    final ViewParent parent = mHost.getParent();
    if (parent instanceof View) {
        result.setParent((View) parent);
    }

    // Populate the minimum required fields.
    result.setVisibleToUser(source.isVisibleToUser());
    result.setPackageName(source.getPackageName());
    result.setClassName(source.getClassName());

    // Add the fake root node.
    result.addChild(mHost, ROOT_ID);

    return result;
}

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From source file:com.android.yijiang.kzx.widget.betterpickers.TouchExplorationHelper.java

private AccessibilityNodeInfoCompat populateNodeForItemInternal(T item, AccessibilityNodeInfoCompat node) {
    final int virtualDescendantId = getIdForItem(item);

    // Ensure the client has good defaults.
    node.setEnabled(true);/*from  w w  w  . j  a v  a 2  s  . co m*/

    // Allow the client to populate the node.
    populateNodeForItem(item, node);

    if (TextUtils.isEmpty(node.getText()) && TextUtils.isEmpty(node.getContentDescription())) {
        throw new RuntimeException("You must add text or a content description in populateNodeForItem()");
    }

    // Don't allow the client to override these properties.
    node.setPackageName(mParentView.getContext().getPackageName());
    node.setClassName(item.getClass().getName());
    node.setParent(mParentView);
    node.setSource(mParentView, virtualDescendantId);

    if (mFocusedItemId == virtualDescendantId) {
        node.addAction(AccessibilityNodeInfoCompat.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
    } else {
        node.addAction(AccessibilityNodeInfoCompat.ACTION_ACCESSIBILITY_FOCUS);
    }

    node.getBoundsInParent(mTempParentRect);
    if (mTempParentRect.isEmpty()) {
        throw new RuntimeException("You must set parent bounds in populateNodeForItem()");
    }

    // Set the visibility based on the parent bound.
    if (intersectVisibleToUser(mTempParentRect)) {
        node.setVisibleToUser(true);
        node.setBoundsInParent(mTempParentRect);
    }

    // Calculate screen-relative bound.
    mParentView.getLocationOnScreen(mTempGlobalRect);
    final int offsetX = mTempGlobalRect[0];
    final int offsetY = mTempGlobalRect[1];
    mTempScreenRect.set(mTempParentRect);
    mTempScreenRect.offset(offsetX, offsetY);
    node.setBoundsInScreen(mTempScreenRect);

    return node;
}

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From source file:com.deange.datetimepicker.TouchExplorationHelper.java

private AccessibilityNodeInfoCompat populateNodeForItemInternal(T item, AccessibilityNodeInfoCompat node) {
    final int virtualDescendantId = getIdForItem(item);

    // Ensure the client has good defaults.
    node.setEnabled(true);//from w w  w.  j  a  v a  2s .co m

    // Allow the client to populate the node.
    populateNodeForItem(item, node);

    if (TextUtils.isEmpty(node.getText()) && TextUtils.isEmpty(node.getContentDescription())) {
        throw new RuntimeException("You must add text or a content description in populateNodeForItem()");
    }

    // Don't allow the client to override these properties.
    node.setPackageName(mParentView.getContext().getPackageName());
    node.setClassName(item.getClass().getName());
    node.setParent(mParentView);
    node.setSource(mParentView, virtualDescendantId);

    if (mFocusedItemId == virtualDescendantId) {
        node.addAction(AccessibilityNodeInfoCompat.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
    } else {
        node.addAction(AccessibilityNodeInfoCompat.ACTION_ACCESSIBILITY_FOCUS);
    }

    node.getBoundsInParent(mTempParentRect);
    if (mTempParentRect.isEmpty()) {
        throw new RuntimeException("You must set parent bounds in populateNodeForItem()");
    }

    // Set the visibility based on the parent bound.
    if (intersectVisibleToUser(mTempParentRect)) {
        node.setVisibleToUser(true);
        node.setBoundsInParent(mTempParentRect);
    }

    // Calculate screen-relative bound.
    mParentView.getLocationOnScreen(mTempGlobalRect);
    final int offsetX = mTempGlobalRect[0];
    final int offsetY = mTempGlobalRect[1];
    mTempScreenRect.set(mTempParentRect);
    mTempScreenRect.offset(offsetX, offsetY);
    node.setBoundsInScreen(mTempScreenRect);

    return node;
}

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From source file:com.android.utils.ExploreByTouchHelper.java

/**
 * Constructs and returns an {@link AccessibilityNodeInfoCompat} for the
 * specified item. Automatically manages accessibility focus actions.
 * <p>/*w ww .j av  a 2s  .  c  om*/
 * Allows the implementing class to specify most node properties, but
 * overrides the following:
 * <ul>
 * <li>{@link AccessibilityNodeInfoCompat#setPackageName}
 * <li>{@link AccessibilityNodeInfoCompat#setClassName}
 * <li>{@link AccessibilityNodeInfoCompat#setParent(View)}
 * <li>{@link AccessibilityNodeInfoCompat#setSource(View, int)}
 * <li>{@link AccessibilityNodeInfoCompat#setVisibleToUser}
 * <li>{@link AccessibilityNodeInfoCompat#setBoundsInScreen(Rect)}
 * </ul>
 * <p>
 * Uses the bounds of the parent view and the parent-relative bounding
 * rectangle specified by
 * {@link AccessibilityNodeInfoCompat#getBoundsInParent} to automatically
 * update the following properties:
 * <ul>
 * <li>{@link AccessibilityNodeInfoCompat#setVisibleToUser}
 * <li>{@link AccessibilityNodeInfoCompat#setBoundsInParent(Rect)}
 * </ul>
 *
 * @param virtualViewId The virtual view id for item for which to construct
 *            a node.
 * @return An {@link AccessibilityNodeInfoCompat} for the specified item.
 */
private AccessibilityNodeInfoCompat getNodeForVirtualViewId(int virtualViewId) {
    final AccessibilityNodeInfoCompat node = AccessibilityNodeInfoCompat.obtain();

    // Ensure the client has good defaults.
    node.setEnabled(true);
    node.setClassName(mHost.getClass().getName() + DEFAULT_CLASS_NAME);

    // Allow the client to populate the node.
    populateNodeForVirtualViewId(virtualViewId, node);

    if (TextUtils.isEmpty(node.getText()) && TextUtils.isEmpty(node.getContentDescription())) {
        throw new RuntimeException(
                "You must add text or a content description in populateNodeForVirtualViewId()");
    }

    // Don't allow the client to override these properties.
    node.setPackageName(mHost.getContext().getPackageName());
    node.setParent(mHost, ROOT_ID);
    node.setSource(mHost, virtualViewId);

    // Manage internal accessibility focus state.
    if (mFocusedVirtualViewId == virtualViewId) {
        node.setAccessibilityFocused(true);
        node.addAction(AccessibilityNodeInfoCompat.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
    } else {
        node.setAccessibilityFocused(false);
        node.addAction(AccessibilityNodeInfoCompat.ACTION_ACCESSIBILITY_FOCUS);
    }

    node.getBoundsInParent(mTempParentRect);
    if (mTempParentRect.isEmpty()) {
        throw new RuntimeException("You must set parent bounds in populateNodeForVirtualViewId()");
    }

    // Set the visibility based on the parent bound.
    if (intersectVisibleToUser(mTempParentRect)) {
        node.setVisibleToUser(true);
        node.setBoundsInParent(mTempParentRect);
    }

    // Calculate screen-relative bound.
    mHost.getLocationOnScreen(mTempGlobalRect);
    final int offsetX = mTempGlobalRect[0];
    final int offsetY = mTempGlobalRect[1];
    mTempScreenRect.set(mTempParentRect);
    mTempScreenRect.offset(offsetX, offsetY);
    node.setBoundsInScreen(mTempScreenRect);

    return node;
}

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