[Android]_ch6.1_使用意圖物件啟用其他活動

[Android]_ch6.1_使用意圖物件啟用其他活動

package com.derek.ch18_intent;



import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;





public class Act01 extends Activity {

Button btn1;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.act01);

        btn1=(Button)findViewById(R.id.button1);

        btn1.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

Intent intent=new Intent();

intent.setClass(Act01.this, Act02.class);

startActivity(intent);

}

});

    }

}





package com.derek.ch18_intent;



import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;



public class Act02 extends Activity{

Button btn2_1;

@Override

protected void onCreate(Bundle savedInstanceState) {

// TODO Auto-generated method stub

super.onCreate(savedInstanceState);

setContentView(R.layout.act02);

btn2_1=(Button)findViewById(R.id.button2_1);

btn2_1.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

Intent intent=new Intent(Act02.this,Act01.class);

startActivity(intent);

}

});

}



}