Android中Activity之间跳转和参数传递的实例

package com.example.testsend;

import android.app.Activity;
import android.os.Bundle;

public class MainActivity2 extends Activity{
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.newtest);   
  }
  
}

 <activity android:name="com.example.testsend.MainActivity2">
      </activity>

 <Button 
    android:id="@+id/btnOpen"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="打开新页面"
    android:onClick="OpenNew"
    />

  public void OpenNew(View v){
  //新建一个显式意图，第一个参数为当前Activity类对象，第二个参数为你要打开的Activity类
  Intent intent =new Intent(MainActivity.this,MainActivity2.class);
  startActivity(intent);    
  }

public void OpenNew(View v){
  //新建一个显式意图，第一个参数为当前Activity类对象，第二个参数为你要打开的Activity类
  Intent intent =new Intent(MainActivity.this,MainActivity2.class);
  
  //用Bundle携带数据
  Bundle bundle=new Bundle();
  //传递name参数为tinyphp
  bundle.putString("name", "tinyphp");
  intent.putExtras(bundle);
  
  startActivity(intent);    
  }

 protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.newtest);  
    
    //新页面接收数据
    Bundle bundle = this.getIntent().getExtras();
    //接收name值
    String name = bundle.getString("name");
    Log.i("获取到的name值为",name);   
  }