参考我的演示代码并进行调整：

Take reference to my demo code and adapt it:

package com.peterleow.layouts;

import android.app.Activity;
import android.os.Bundle;
import android.view.WindowManager.LayoutParams;
import android.widget.ArrayAdapter;
import android.widget.GridView;
import android.widget.RelativeLayout;

public class RelativeLayoutsActivity extends Activity {
	
     static final String[] alphabets = new String[] { 
		"A", "B", "C", "D", "E",
		"F", "G", "H", "I", "J",
		"K", "L", "M", "N", "O",
		"P", "Q", "R", "S", "T",
		"U", "V", "W", "X"};

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
	ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
				android.R.layout.simple_list_item_1, alphabets);
		
        // create a RelativeLayout
        RelativeLayout relativeLayout = new RelativeLayout(this);

        // define the RelativeLayout layout parameters.
        RelativeLayout.LayoutParams relativeLayoutParams = new RelativeLayout.LayoutParams(
                RelativeLayout.LayoutParams.FILL_PARENT,
                RelativeLayout.LayoutParams.FILL_PARENT);
        
        // create a gridview
        GridView gridView= new GridView(this);

        gridView.setLayoutParams(new GridView.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
        gridView.setNumColumns(4);

        gridView.setAdapter(adapter);

        // Adding the gridview to the RelativeLayout as a child
        relativeLayout.addView(gridView);

        // set the RelativeLayout as our content view
        setContentView(relativeLayout, relativeLayoutParams);
    }
       
}