public class Wizard extends Activity {

    private TextView step1result, step2result, step3result;

    public static final String INTENT_STEP1 = "com.novoda.STEP1";
    public static final String INTENT_STEP2 = "com.novoda.STEP2";
    public static final String INTENT_STEP3 = "com.novoda.STEP3";

    private static final int STEP1 = 1;
    private static final int STEP2 = 2;
    private static final int STEP3 = 3;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.wizard);
        
        this.step1result = (TextView)findViewById(R.id.step1result);
        this.step2result = (TextView)findViewById(R.id.step2result);
        this.step3result = (TextView)findViewById(R.id.step3result);  
        
        startActivityForResult(new Intent(Wizard.INTENT_STEP1), STEP1);        
    }
    
    
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        switch (requestCode) {
            case STEP1:
                this.step1result.setText(data.getStringExtra("STEP1RESULT"));
                startActivityForResult(new Intent(Wizard.INTENT_STEP2), STEP2);    
                break;
            case STEP2:
                this.step2result.setText(data.getStringExtra("STEP2RESULT"));
                startActivityForResult(new Intent(Wizard.INTENT_STEP3), STEP3);    
                break;
            case STEP3:
                this.step3result.setText(data.getStringExtra("STEP3RESULT"));
                break;
        }
    }
}

public class Step1 extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.step1);

        Button nextStep = (Button)findViewById(R.id.goto2);
        nextStep.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Intent it = new Intent();
                it.putExtra("STEP1RESULT", ((EditText)findViewById(R.id.step1value)).getText()
                        .toString());
                setResult(Activity.RESULT_OK, it);
                finish();
            }
        });
    }
}

在activity中装载了一个view，然后在view中重载了onKeyDown方法，但是按键后没有反应，又试了试onTouchEvent，onTouchEvent有反应。。然后忽然看见一片文章在activity中重载onKeyDow 然后再这里面在调用view的onKeyDow，我就试了试，结果可以。。

然后又查了查看到了这个

                              网络链接访问为题
android url访问主要分为两种：一种是httpurlconnection,另一种是httpclient，而前者只是简单的访问，不能设置参数，头文件等，而后者刚好弥补了前者的不足:

 /**
  * 执行一个HTTP GET请求，返回请求响应的HTML
  *
  * @param url
  *            请求的URL地址
  * @param queryString
  *            请求的查询参数,可以为null
  * @param charset
  *            字符集
  * @param pretty
  *            是否美化
  * @return 返回请求响应的HTML
  */
 public static String doGetHttpHTML(String url, String cookie) {
  StringBuffer response = new StringBuffer();
  DefaultHttpClient client = new DefaultHttpClient(); 
  HttpGet method = new HttpGet(url);
  // 设置Http header数据
  if(cookie != null){ 
   String sessionId=StringUtils.cookieHandle(cookie.toString());
   method.setHeader("Cookie",sessionId);   
  }  
  try {   
   
   HttpResponse res=client.execute(method);
   if (res.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
    HttpEntity entity=res.getEntity();
    BufferedReader reader = new BufferedReader(new InputStreamReader(entity.getContent()));    
    String line;
    while ((line = reader.readLine()) != null) {     
     response.append(line).append(System.getProperty("line.separator"));    
    }
    reader.close();
   }
   return response.toString();
  } catch(IOException e) {
   Log.i("执行HTTP Get请求" + url + "时，发生异常！", e.toString());
   return "InternetFail";
  } finally {
   client.getConnectionManager().shutdown();
  } 
 }

以上获取返回值和httpurlconnection 功能差不多  ，一下这段代码获取cookie

 /**
  * 获取登陆Cookie 
  * @param urlpath
  * @return
  * @throws Exception
  */
 public static String getData(String url){  
  DefaultHttpClient httpclient = new DefaultHttpClient();   
  HttpGet httpget = new HttpGet(url);  
  try {
   HttpResponse response = httpclient.execute(httpget);
   CookieStore cookie=httpclient.getCookieStore();
   return cookie.toString();
  } catch (ClientProtocolException e) {   
   e.printStackTrace();
   return null;
  } catch (IOException e) {   
   e.printStackTrace();
   return null;
  }   
 }