package com.example.second;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends Activity implements OnClickListener{
private Button btn1,btn2,btn3;
private TextView tv1,tv2,tv3,tv4;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findView();
}
private void findView() {
btn1 = (Button) findViewById(R.id.button1);
btn2 = (Button) findViewById(R.id.button2);
btn3 = (Button) findViewById(R.id.order);
tv2= (TextView) findViewById(R.id.textView2);
tv4= (TextView) findViewById(R.id.textView4);
btn1.setOnClickListener(this);
btn2.setOnClickListener(this);
btn3.setOnClickListener(this);
}
@Override
public void onClick(View v) {
String quantity =tv2.getText().toString();
switch (v.getId()) {
case R.id.button1:
int num =Integer.parseInt(quantity);
if (num>0) {
tv2.setText(String.valueOf(--num));
tv4.setText("$"+String.valueOf(num*5));
}
break;
case R.id.button2:
int plus =Integer.parseInt(quantity);
tv2.setText(String.valueOf(++plus));
tv4.setText("$"+String.valueOf(plus*5));
break;
case R.id.order:
new AlertDialog.Builder(this).setTitle("ϵͳ��ʾ").setMessage("��ѡ����"+tv2.getText().toString()+"����"+tv4.getText().toString()+"ȷ����").setPositiveButton("ȷ��", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}
}).setNegativeButton("ȡ��", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}
}).show();
break;
default:
break;
}
}
}