Java AccessibilityNodeInfoCompat.getContentDescription方法代碼示例

import android.support.v4.view.accessibility.AccessibilityNodeInfoCompat; //導入方法依賴的package包/類
public NodeInfo(AccessibilityNodeInfoCompat node) {
    id = simplifyId(node.getViewIdResourceName());
    desc = node.getContentDescription();
    className = node.getClassName();
    packageName = node.getPackageName();
    text = node.getText();

    drawingOrder = node.getDrawingOrder();

    accessibilityFocused = node.isAccessibilityFocused();
    checked = node.isChecked();
    clickable = node.isClickable();
    contextClickable = node.isContextClickable();
    dismissable = node.isDismissable();
    enabled = node.isEnabled();
    editable = node.isEditable();
    focusable = node.isFocusable();
    longClickable = node.isLongClickable();
    selected = node.isSelected();
    scrollable = node.isScrollable();
    mBoundsInScreen = new Rect();
    node.getBoundsInScreen(mBoundsInScreen);
    bounds = boundsToString(mBoundsInScreen);
}
 

import android.support.v4.view.accessibility.AccessibilityNodeInfoCompat; //導入方法依賴的package包/類
private ArrayList<CopyNode> traverseNode(AccessibilityNodeInfoCompat nodeInfo, int width, int height) {
    ArrayList<CopyNode> nodeList = new ArrayList();
    if(nodeInfo != null && nodeInfo.getInfo() != null) {
        nodeInfo.refresh();

        for(int i = 0; i < nodeInfo.getChildCount(); ++i) {
            //遞歸遍曆nodeInfo
            nodeList.addAll(traverseNode(nodeInfo.getChild(i), width, height));
        }

        if(nodeInfo.getClassName() != null && nodeInfo.getClassName().equals("android.webkit.WebView")) {
            return nodeList;
        } else {
            String content = null;
            String description = content;
            if(nodeInfo.getContentDescription() != null) {
                description = content;
                if(!"".equals(nodeInfo.getContentDescription())) {
                    description = nodeInfo.getContentDescription().toString();
                }
            }

            content = description;
            if(nodeInfo.getText() != null) {
                content = description;
                if(!"".equals(nodeInfo.getText())) {
                    content = nodeInfo.getText().toString();
                }
            }

            if(content != null) {
                Rect outBounds = new Rect();
                nodeInfo.getBoundsInScreen(outBounds);
                if(checkBound(outBounds, width, height)) {
                    nodeList.add(new CopyNode(outBounds, content));
                }
            }

            return nodeList;
        }
    } else {
        return nodeList;
    }
}
 

import android.support.v4.view.accessibility.AccessibilityNodeInfoCompat; //導入方法依賴的package包/類
private AccessibilityNodeInfoCompat createNodeForChild(int virtualViewId) {
    AccessibilityNodeInfoCompat node = AccessibilityNodeInfoCompat.obtain();
    node.setEnabled(true);
    node.setClassName(DEFAULT_CLASS_NAME);
    onPopulateNodeForVirtualView(virtualViewId, node);
    if (node.getText() == null && node.getContentDescription() == null) {
        throw new RuntimeException("Callbacks must add text or a content description in populateNodeForVirtualViewId()");
    }
    node.getBoundsInParent(this.mTempParentRect);
    if (this.mTempParentRect.isEmpty()) {
        throw new RuntimeException("Callbacks must set parent bounds in populateNodeForVirtualViewId()");
    }
    int actions = node.getActions();
    if ((actions & 64) != 0) {
        throw new RuntimeException("Callbacks must not add ACTION_ACCESSIBILITY_FOCUS in populateNodeForVirtualViewId()");
    } else if ((actions & 128) != 0) {
        throw new RuntimeException("Callbacks must not add ACTION_CLEAR_ACCESSIBILITY_FOCUS in populateNodeForVirtualViewId()");
    } else {
        node.setPackageName(this.mView.getContext().getPackageName());
        node.setSource(this.mView, virtualViewId);
        node.setParent(this.mView);
        if (this.mFocusedVirtualViewId == virtualViewId) {
            node.setAccessibilityFocused(true);
            node.addAction(128);
        } else {
            node.setAccessibilityFocused(false);
            node.addAction(64);
        }
        if (intersectVisibleToUser(this.mTempParentRect)) {
            node.setVisibleToUser(true);
            node.setBoundsInParent(this.mTempParentRect);
        }
        this.mView.getLocationOnScreen(this.mTempGlobalRect);
        int offsetX = this.mTempGlobalRect[0];
        int offsetY = this.mTempGlobalRect[1];
        this.mTempScreenRect.set(this.mTempParentRect);
        this.mTempScreenRect.offset(offsetX, offsetY);
        node.setBoundsInScreen(this.mTempScreenRect);
        return node;
    }
}