Android 自动生成表格

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
    <LinearLayout 
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="6">
        <TableLayout 
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_gravity="center_vertical">
            <TextView 
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="请输入要生成表格的行号列"
                android:textSize="15sp"/>
            <TableRow 
                android:gravity="center"
                android:layout_marginTop="5dp"
                >
                 <TextView 
                    android:id="@+id/tv1"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="行"
                    android:textSize="15sp"/>
            <EditText 
                android:id="@+id/et1"
                android:layout_width="100dp"
                android:layout_height="wrap_content"/>
            </TableRow>
            <TableRow 
                android:gravity="center"
                android:layout_marginTop="5dp"
                >

                <TextView
                    android:id="@+id/tv2"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="列"
                    android:textSize="15sp" />

            <EditText 
                android:id="@+id/et2"
                android:layout_width="100dp"
                android:layout_height="wrap_content"
                android:numeric="decimal"/>
            <!-- decimal 只能输入数字，大于0的数字-->
            </TableRow>
            <TableRow
                android:gravity="center"
                >
                <Button 
                    android:id="@+id/btnadd"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_span="2"
                    android:text="确定"
                    
                    />
            </TableRow>
        </TableLayout>
     </LinearLayout>
    <TableLayout 
        android:id="@+id/table"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="3"
        android:stretchColumns="*"
        android:shrinkColumns="*">
        
    </TableLayout>
</LinearLayout>

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TableLayout;
import android.widget.TableRow;

public class MainActivity extends Activity implements OnClickListener {

    private Button submit;
    private EditText row;
    private EditText cloumn;
    private TableLayout table;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.canchange);
        submit = (Button) findViewById(R.id.btnadd);
        
        row = (EditText) findViewById(R.id.et1);
        cloumn = (EditText) findViewById(R.id.et2);
        table = (TableLayout) findViewById(R.id.table);
        
        submit.setOnClickListener(this);

    }

    @Override
    public void onClick(View v) {
        int c = Integer.parseInt(row.getText() + "");
        int r = Integer.parseInt(cloumn.getText() + "");
        table.removeAllViews();
        for (int i = 0; i < c; i++) {
            TableRow tr = new TableRow(this);

            for (int j = 0; j < r; j++) {
                Button b = new Button(this);

                tr.addView(b);
            }
            table.addView(tr);
        }
    }

}