从一个页面activity转向另一页面

     导入

import android.content.Intent;

从 StarloveActivity （当前页面） 转到 star（另一个页面）

   Intent intent = new Intent();  

        intent.setClass(StarloveActivity.this, star.class);
        startActivity(intent);   
        StarloveActivity.this.finish(); 

Activity中使用Intent实现页面跳转与参数的传递

新建一个FirstAvtivity.java

    
    
    
    

     
     
     
     package
     
     
     
      com.zhuguangwei; 
     
     
     
     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
     
     
     
      FirstActivity 
     
     
     
     extends
     
     
     
      Activity { 
     
     
     
     private
     
     
     
      Button myButton; 
     
     
     
     /**
     
     
     
      Called when the activity is first created. 
     
     
     
     */
     
     
     
      @Override 
     
     
     
     public
     
     
     
      
     
     
     
     void
     
     
     
      onCreate(Bundle savedInstanceState) { 
     
     
     
     super
     
     
     
     .onCreate(savedInstanceState); setContentView(R.layout.main); myButton 
     
     
     
     =
     
     
     
      (Button) findViewById(R.id.myButton); myButton.setOnClickListener(
     
     
     
     new
     
     
     
      OnClickListener() { @Override 
     
     
     
     public
     
     
     
      
     
     
     
     void
     
     
     
      onClick(View v) { 
     
     
     
     //
     
     
     
      TODO Auto-generated method stub
     
     
     
      
     
     
     
      Intent intent 
     
     
     
     =
     
     
     
      
     
     
     
     new
     
     
     
      Intent(); 
     
     
     
     //
     
     
     
     Intent传递参数
     
     
     
      
     
     
     
      intent.putExtra(
     
     
     
     "
     
     
     
     testIntent
     
     
     
     "
     
     
     
     , 
     
     
     
     "
     
     
     
     123
     
     
     
     "
     
     
     
     ); intent.setClass(FirstActivity.
     
     
     
     this
     
     
     
     , SecondActivity.
     
     
     
     class
     
     
     
     ); FirstActivity.
     
     
     
     this
     
     
     
     .startActivity(intent); } }); } }
    
    
    
    

新建第二个SecondActivity.java

    
    
    
    

     
     
     
     package
     
     
     
      com.zhuguangwei; 
     
     
     
     import
     
     
     
      android.app.Activity; 
     
     
     
     import
     
     
     
      android.content.Intent; 
     
     
     
     import
     
     
     
      android.os.Bundle; 
     
     
     
     import
     
     
     
      android.widget.TextView; 
     
     
     
     public
     
     
     
      
     
     
     
     class
     
     
     
      SecondActivity 
     
     
     
     extends
     
     
     
      Activity{ 
     
     
     
     private
     
     
     
      TextView myTextView; @Override 
     
     
     
     protected
     
     
     
      
     
     
     
     void
     
     
     
      onCreate(Bundle savedInstanceState) { 
     
     
     
     //
     
     
     
      TODO Auto-generated method stub
     
     
     
      
     
     
     
      
     
     
     
     super
     
     
     
     .onCreate(savedInstanceState); setContentView(R.layout.other); 
     
     
     
     //
     
     
     
     使用Intent对象得到FirstActivity传递来的参数
     
     
     
      
     
     
     
      Intent intent 
     
     
     
     =
     
     
     
      getIntent(); String value 
     
     
     
     =
     
     
     
      intent.getStringExtra(
     
     
     
     "
     
     
     
     testIntent
     
     
     
     "
     
     
     
     ); myTextView 
     
     
     
     =
     
     
     
      (TextView) findViewById(R.id.myTextView); myTextView.setText(value); } } 
    
    
    
    

两个Activity都要在AndroidMenifest.xml中注册