get Children Of Type by Class - Android java.lang.reflect

Android examples for java.lang.reflect:Class

  1. HOME
  2. Android
  3. java.lang.reflect
  4. Class

Description

get Children Of Type by Class

Demo Code

/** /*from   w w  w  .j  a  v  a 2  s.c  om*/
 *  Copyright (C) 2012  Just Do One More
 *  
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
//package com.java2s;
import java.util.ArrayList;

import java.util.List;

import android.view.View;

import android.view.ViewGroup;

public class Main {
    public static <T> List<T> getChildrenOfType(ViewGroup viewGroup,
            Class<T> type) {
        List<T> children = new ArrayList<T>();

        int numberOfChildren = viewGroup.getChildCount();

        for (int i = 0; i < numberOfChildren; i++) {
            View child = viewGroup.getChildAt(i);

            if (child instanceof ViewGroup) {
                children.addAll(getChildrenOfType((ViewGroup) child, type));
            } else if (type.isAssignableFrom(child.getClass())) {
                children.add(type.cast(child));
            }
        }

        return children;
    }
}

Related Tutorials