Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright 2014 - 2016 Michael Rapp
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

import android.os.Build;

import android.support.annotation.NonNull;

import android.widget.ExpandableListView;
import android.widget.GridView;
import android.widget.ListView;

public class Main {
    /**
     * Scrolls a specific expandable list view to the item at a specific index.
     *
     * @param expandableListView
     *         The expandable list view, which should be scrolled, as an instance of the class
     *         {@link ExpandableListView}. The expandable list view may not be null
     * @param index
     *         The index of the item, the expandable list view should be scrolled to, as an {@link
     *         Integer} value
     * @param offset
     *         The index of the item, the expandable list view should be scrolled to, as an {@link
     *         Integer} value
     */
    private static void scrollTo(@NonNull final ExpandableListView expandableListView, final int index,
            final int offset) {
        expandableListView.setSelectionFromTop(index, offset);
    }

    /**
     * Scrolls a specific list view to the item at a specific index.
     *
     * @param listView
     *         The list view, which should be scrolled, as an instance of the class {@link
     *         ListView}. The list view may not be null
     * @param index
     *         The index of the item, the list view should be scrolled to, as an {@link Integer}
     *         value
     * @param offset
     *         The offset of the item, the list view should be scrolled to, as an {@link Integer}
     *         value
     */
    private static void scrollTo(@NonNull final ListView listView, final int index, final int offset) {
        listView.setSelectionFromTop(index, offset);
    }

    /**
     * Scrolls a specific grid view to the item at a specific index.
     *
     * @param gridView
     *         The grid view, which should be scrolled, as an instance of the class {@link
     *         GridView}. The grid view may not be null
     * @param index
     *         The index of the item, the grid view should be scrolled to, as an {@link Integer}
     *         value
     * @param offset
     *         The offset of the item, the grid view should be scrolled to, as an {@link Integer}
     *         value
     */
    private static void scrollTo(@NonNull final GridView gridView, final int index, final int offset) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            gridView.setSelectionFromTop(index, offset);
        } else {
            gridView.setSelection(index);
        }
    }
}