Set ListView's height via ViewGroup.LayoutParams - Android User Interface

Android examples for User Interface:ListView

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Description

Set ListView's height via ViewGroup.LayoutParams

Demo Code

/*//from   ww  w. j  a va2 s .  co m
 * Copyright (C) 2016 venshine.cn@gmail.com
 *
 * 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.
 */
//package com.java2s;

import android.view.View;
import android.view.ViewGroup;

import android.widget.ListAdapter;
import android.widget.ListView;

public class Main {
    /**
     * Set ListView's height
     *
     * @param ListView
     * @param height
     */
    public static void setListViewHeight(ListView ListView, int height) {
        int h = 0;
        if (height == 0) {
            h = getListViewHeight(ListView);
            if (h == 0 || ListView == null) {
                return;
            }
        } else {
            h = height;
        }
        ViewGroup.LayoutParams params = ListView.getLayoutParams();
        params.height = h;
        ListView.setLayoutParams(params);
    }

    /**
     * Set ListView's height
     *
     * @param ListView
     */
    public static void setListViewHeight(ListView ListView) {
        setListViewHeight(ListView, 0);
    }

    /**
     * Get ListView's height
     *
     * @param ListView
     * @return
     */
    public static int getListViewHeight(ListView ListView) {
        if (ListView == null) {
            return 0;
        }

        ListAdapter listAdapter = ListView.getAdapter();
        if (listAdapter == null) {
            return 0;
        }

        int totalHeight = 0;
        for (int i = 0; i < listAdapter.getCount(); i++) {
            View listItem = listAdapter.getView(i, null, ListView);
            listItem.measure(View.MeasureSpec.makeMeasureSpec(0,
                    View.MeasureSpec.UNSPECIFIED), View.MeasureSpec
                    .makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
            totalHeight += listItem.getMeasuredHeight();
        }

        return (totalHeight + (ListView.getDividerHeight() * (listAdapter
                .getCount() - 1)));
    }
}

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