原Activity代码有点长……我只把监听器复过来：
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
// TODO Auto-generated method stub
super.onListItemClick(l, v, position, id);
Intent intent = new Intent();
intent.putExtra("choose", position);
intent.setClass(IntroductionActivity.this, detailActivity.class);
IntroductionActivity.this.startActivity(intent);
System.out.println("positon---->"+position);
}
运行程序的时候发现logcat中有输出position，所以应该不是这个activity的问题了吧？
另一个activity源代码如下：
package mars.product;
import java.io.*;
import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.*;
public class detailActivity extends ListActivity {
private TextView detailview = null;
private Button backbutton = null;
private Button linkbutton = null;
private int i = 0;
@Override
protected void onCreate(Bundle savedInstanceState){
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.detail);
Intent intent = getIntent();
//注意getIntExtra的返回值是int，后面参数int defaultvalue 干嘛的不知道……
i = intent.getIntExtra("choose", 0);
System.out.println("i------>"+i);
detailview = (TextView)findViewById(R.id.detailview);
//读入txt资源，创建输入流
InputStream is = getResources().openRawResource(R.raw.introduction);
//创建字符创存放缓存
byte[] buffer = new byte[1024];
int rd = 0;
//新建输出流
ByteArrayOutputStream output = new ByteArrayOutputStream();
//读取文本文件到缓存中
try{
while((rd = is.read(buffer)) != -1){
output.write(buffer, 0, rd);
}
//简体中文编码GBK，繁体big5？
String temp = new String(output.toByteArray(),"GBK");
//将获得字符串拆开，截取各段内容赋给string[]数组---trim去掉两边空白字符后的字符串---split分割函数
String[] detail = temp.trim().split("#");
detailview.setText(detail[i]);
//关闭输出流
output.close();
} catch (IOException e){
e.printStackTrace();
}
backbutton = (Button)findViewById(R.id.backbutton);
backbutton.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
finish();
}
});
linkbutton = (Button)findViewById(R.id.linkbutton);
linkbutton.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent();
intent.setClass(detailActivity.this, linkActivity.class);
intent.putExtra("i", i);//直接传输网址的数组位置，不用+1
detailActivity.this.startActivity(intent);
}
});
}
}
这个activity的布局文件如下：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="10dp"
android:orientation="vertical" >
<TextView
android:id="@+id/detailview"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:padding="5dp"
/>