Resizes the gridview. - Android User Interface

Android examples for User Interface:GridView

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Description

Resizes the gridview.

Demo Code


//package com.java2s;
import android.view.View;
import android.view.ViewGroup;
import android.widget.GridView;
import android.widget.ListAdapter;

public class Main {
    /**/*from  w w  w  . ja va  2  s  . c o m*/
     * Resizes the gridview.
     * @param gridView
     * @param items count
     * @param columns column number
     */
    public static void resizeGridView(GridView gridView, int columns) {
        ListAdapter listAdapter = gridView.getAdapter();
        if (listAdapter == null) {
            // pre-condition
            return;
        }

        int totalHeight = 0;
        int items = listAdapter.getCount();
        int rows = 0;

        int maxHeight = 0;

        for (int i = 0; i < listAdapter.getCount(); i++) {
            View listItem = listAdapter.getView(i, null, gridView);
            listItem.measure(0, 0);
            totalHeight = listItem.getMeasuredHeight();
            if (maxHeight < totalHeight) {
                maxHeight = totalHeight;
            }
        }

        float x = 1;
        if (items > columns) {
            x = items / columns;
            rows = (int) (x + 1);
            maxHeight *= rows;
        }

        ViewGroup.LayoutParams params = gridView.getLayoutParams();
        params.height = maxHeight;
        gridView.setLayoutParams(params);

    }
}

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