get AbsListView Height - Android User Interface

Android examples for User Interface:ListView

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Description

get AbsListView Height

Demo Code

/*//from w w w  .j  av a 2 s.  c  o  m
 * Copyright (C) 2012 www.amsoft.cn
 * 
 * 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.View.MeasureSpec;

import android.widget.AbsListView;
import android.widget.GridView;
import android.widget.ListAdapter;
import android.widget.ListView;

public class Main {

    public static int getAbsListViewHeight(AbsListView absListView,
            int lineNumber, int verticalSpace) {
        int totalHeight = 0;
        int w = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
        int h = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
        absListView.measure(w, h);
        ListAdapter mListAdapter = absListView.getAdapter();
        if (mListAdapter == null) {
            return totalHeight;
        }

        int count = mListAdapter.getCount();
        if (absListView instanceof ListView) {
            for (int i = 0; i < count; i++) {
                View listItem = mListAdapter.getView(i, null, absListView);
                listItem.measure(w, h);
                totalHeight += listItem.getMeasuredHeight();
            }
            if (count == 0) {
                totalHeight = verticalSpace;
            } else {
                totalHeight = totalHeight
                        + (((ListView) absListView).getDividerHeight() * (count - 1));
            }

        } else if (absListView instanceof GridView) {
            int remain = count % lineNumber;
            if (remain > 0) {
                remain = 1;
            }
            if (mListAdapter.getCount() == 0) {
                totalHeight = verticalSpace;
            } else {
                View listItem = mListAdapter.getView(0, null, absListView);
                listItem.measure(w, h);
                int line = count / lineNumber + remain;
                totalHeight = line * listItem.getMeasuredHeight()
                        + (line - 1) * verticalSpace;
            }

        }
        return totalHeight;

    }
}

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