Java Code Examples for android.view.accessibility.AccessibilityEvent#getRecordCount()

/**
 * 描述:验证是否现在是在聊天页面，可以进行抢红包处理
 * 作者:卜俊文
 * 邮箱:[email protected]
 * 日期:2017/11/3 上午11:52
 *
 * @param event
 */

public boolean invalidEnvelopeUi(AccessibilityEvent event) {

    //判断类名是否是聊天页面
    if (!QQConstant.QQ_IM_CHAT_ACTIVITY.equals(event.getClassName().toString())) {
        return true;
    }

    //判断页面中的元素是否有点击拆开的文本，有就返回可以进行查询了
    int recordCount = event.getRecordCount();
    if (recordCount > 0) {
        for (int i = 0; i < recordCount; i++) {
            AccessibilityRecord record = event.getRecord(i);
            if (record == null) {
                break;
            }
            List<CharSequence> text = record.getText();
            if (text != null && text.size() > 0 && text.contains(QQConstant.QQ_CLICK_TAKE_APART)) {
                //如果文本中有点击拆开的字眼，就返回可以进行查询了
                return true;
            }
        }
    }
    return false;
}
 

private void sendScrapeSubtreeMessages(AccessibilityEvent arg0) {
    sendScrapeSubtreeMessage(arg0.getSource(), null);
    int n = arg0.getRecordCount();
    for (int i = 0; i < n; i++) {
        sendScrapeSubtreeMessage(arg0.getRecord(i).getSource(), null);
    }
}
 

private void sendRefreshNodeMessages(AccessibilityEvent arg0) {
    sendRefreshNodeMessage(arg0.getSource());
    int n = arg0.getRecordCount();
    for (int i = 0; i < n; i++) {
        sendRefreshNodeMessage(arg0.getRecord(i).getSource());
    }
}
 

private static String eventToString(AccessibilityEvent ev) {
    StringBuilder builder = new StringBuilder();
    builder.append("EventType: ").append(AccessibilityEvent.eventTypeToString(ev.getEventType()));
    //builder.append("; EventTime: ").append(ev.getEventTime());
    builder.append("; PackageName: ").append(ev.getPackageName());
    builder.append("; ClassName: ").append(ev.getClassName());
    // builder.append("; MovementGranularity: ").append(ev.getMovementGranularity());
    builder.append("; Action: ").append(ev.getAction());
    builder.append("; ContentChangeTypes: ");//.append(ev.getContentChangeTypes());


    if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.KITKAT) {
        int cct = 0;
        cct = ev.getContentChangeTypes();
        boolean hasCONTENT_CHANGE_TYPE_CONTENT_DESCRIPTION = ((cct & AccessibilityEvent.CONTENT_CHANGE_TYPE_CONTENT_DESCRIPTION) == AccessibilityEvent.CONTENT_CHANGE_TYPE_CONTENT_DESCRIPTION);
        boolean hasCONTENT_CHANGE_TYPE_SUBTREE = ((cct & AccessibilityEvent.CONTENT_CHANGE_TYPE_SUBTREE) == AccessibilityEvent.CONTENT_CHANGE_TYPE_SUBTREE);
        boolean hasCONTENT_CHANGE_TYPE_TEXT = ((cct & AccessibilityEvent.CONTENT_CHANGE_TYPE_TEXT) == AccessibilityEvent.CONTENT_CHANGE_TYPE_TEXT);
        boolean hasCONTENT_CHANGE_TYPE_UNDEFINED = ((cct & AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED) == AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED);


        if (hasCONTENT_CHANGE_TYPE_CONTENT_DESCRIPTION) {
            builder.append(" DESCRIPTION,");
        }
        if (hasCONTENT_CHANGE_TYPE_SUBTREE) {
            builder.append(" SUBTREE,");
        }
        if (hasCONTENT_CHANGE_TYPE_TEXT) {
            builder.append(" TEXT,");
        }
        if (hasCONTENT_CHANGE_TYPE_UNDEFINED) {
            builder.append(" UNDEFINED,");
        }

        builder.append("\n");
    } else {
        builder.append("[ContentChangeType Not available on SDK " + android.os.Build.VERSION.SDK_INT);
    }

    builder.append("  Record X:");
    builder.append(recordToString(ev));
    if (true) {
        builder.append("\n");
        //builder.append("; sourceWindowId: ").append(mSourceWindowId);
        //if (mSourceNode != null) {
        //    builder.append("; mSourceNodeId: ").append(mSourceNode.getSourceNodeId());
        //}
        for (int i = 0; i < ev.getRecordCount(); i++) {
            final AccessibilityRecord record = ev.getRecord(i);
            builder.append("  Record ");
            builder.append(i);
            builder.append(":");
            builder.append(recordToString(record));

            builder.append("\n");
        }
    } else {
        builder.append("; recordCount: ").append(ev.getRecordCount());
    }
    return builder.toString();
}
 

public static int getRecordCount(AccessibilityEvent event) {
    return event.getRecordCount();
}
 

public static int getRecordCount(AccessibilityEvent event) {
    return event.getRecordCount();
}
 

public static int getRecordCount(AccessibilityEvent event) {
    return event.getRecordCount();
}
 

public static int getRecordCount(AccessibilityEvent event) {
    return event.getRecordCount();
}
 

/**
 * Processes an AccessibilityEvent, by traversing the View's tree and
 * putting together a message to speak to the user.
 */
@Override
public void onAccessibilityEvent(AccessibilityEvent event) {
    if (!mTextToSpeechInitialized) {
        Log.e(LOG_TAG, "Text-To-Speech engine not ready.  Bailing out.");
        return;
    }

    // This AccessibilityNodeInfo represents the view that fired the
    // AccessibilityEvent. The following code will use it to traverse the
    // view hierarchy, using this node as a starting point.
    //
    // NOTE: Every method that returns an AccessibilityNodeInfo may return null,
    // because the explored window is in another process and the
    // corresponding View might be gone by the time your request reaches the
    // view hierarchy.
    AccessibilityNodeInfo source = event.getSource();
    if (source == null) {
        return;
    }

    // Grab the parent of the view that fired the event.
    AccessibilityNodeInfo rowNode = getListItemNodeInfo(source);
    if (rowNode == null) {
        return;
    }

    // Using this parent, get references to both child nodes, the label and the checkbox.
    AccessibilityNodeInfo labelNode = rowNode.getChild(0);
    if (labelNode == null) {
        rowNode.recycle();
        return;
    }

    AccessibilityNodeInfo completeNode = rowNode.getChild(1);
    if (completeNode == null) {
        rowNode.recycle();
        return;
    }

    // Determine what the task is and whether or not it's complete, based on
    // the text inside the label, and the state of the check-box.
    if (rowNode.getChildCount() < 2 || !rowNode.getChild(1).isCheckable()) {
        rowNode.recycle();
        return;
    }

    CharSequence taskLabel = labelNode.getText();
    final boolean isComplete = completeNode.isChecked();

    String completeStr = null;
    if (isComplete) {
        completeStr = getString(R.string.task_complete);
    } else {
        completeStr = getString(R.string.task_not_complete);
    }

    String taskStr = getString(R.string.task_complete_template, taskLabel, completeStr);
    StringBuilder utterance = new StringBuilder(taskStr);

    // The custom ListView added extra context to the event by adding an
    // AccessibilityRecord to it. Extract that from the event and read it.
    final int records = event.getRecordCount();
    for (int i = 0; i < records; i++) {
        AccessibilityRecord record = event.getRecord(i);
        CharSequence contentDescription = record.getContentDescription();
        if (!TextUtils.isEmpty(contentDescription )) {
            utterance.append(SEPARATOR);
            utterance.append(contentDescription);
        }
    }

    // Announce the utterance.
    mTts.speak(utterance.toString(), TextToSpeech.QUEUE_FLUSH, null);
    Log.d(LOG_TAG, utterance.toString());
}