android 循环的EditText控件两边各放一个加减

package com.example.addbutton;

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

public class MainActivity extends Activity { private Button addbtn; private EditText tv; public int i = 0;

@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); addbtn = (Button)this.findViewById(R.id.addbtn); tv = (EditText)this.findViewById(R.id.tv); addbtn.setOnClickListener(new AddbtnListener()); } class AddbtnListener implements OnClickListener{ @Override public void onClick(View v) { // TODO Auto-generated method stub i++; tv.setText(""+i); } }

}