[AnDrOiD] 파라메터 전달 간단한 예제

MainActivity.java 의 파일 내용

package com.example.androidexam;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity implements View.OnClickListener{

@Override
protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  
  Button btnTest1 = (Button)findViewById(R.id.btnTest1);
  btnTest1.setOnClickListener(this);
  
}

@Override
public void onClick(View v) {
  // TODO Auto-generated method stub
  
  switch(v.getId()){
  case R.id.btnTest1:
   Intent intent = new Intent(getBaseContext(), SubActivity.class);
   intent.putExtra("name", "홍길동");
   intent.putExtra("age", 29);
   startActivity(intent);
   
   break;
   
  case R.id.btnTest2:
   Toast.makeText(getBaseContext(), "btnTest2 클릭", Toast.LENGTH_SHORT).show();
   break;
   
  default:
    
   break;
  }
}
}

SubActivity.java 의 파일 내용

package com.example.androidexam;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.Toast;


public class SubActivity extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

  // TODO Auto-generated method stub

  super.onCreate(savedInstanceState);

  setContentView(R.layout.activity_sub);

  Intent intent = new Intent(this.getIntent());

  String name = intent.getStringExtra("name");

  int age = intent.getIntExtra("age", 1);

  Toast.makeText(getBaseContext(), name + "님의 나이는 " + age + "입니다.", Toast.LENGTH_SHORT).show();

  }

}