如何实现Android 中断线程的处理

我现在对一个用户注册的功能
1.用ProgressDialog将当前页面设成不可操作（保留返回键 退出ProgressDialog）
2.用一个线程clientThread执行数据的提交和返回

问题：考虑到ProgressDialog运行过程中，返回键的操作，应该终止clientThread的运行。

以下是我的代码，希望大家互相讨论，指出我的不足，最好能给出比较好的解决方案

代码区：

原文转载安卓教程网：http://android.662p.com/thread-318-1-1.html

btn_register.setOnClickListener(new View.OnClickListener() {  
          
        @Override  
        public void onClick(View v) {  
            // TODO Auto-generated method stub   
            if(doBeforeSubmit()){  
      
                try {  
                    Log.v(TAG, "clientThread prepare01。。。:"+Thread.interrupted());  
                    clienThread=new Thread(){  
                        public void run() {  
                            try {  
                                Log.v(TAG, "clientThread prepare02。。。:"+Thread.interrupted());  
                                while (!Thread.interrupted()) {  
                                    Log.v(TAG, "clientThread starting。。。");  
                                    MeApiCall meApiCall=new MeApiCallImpl();  
                                    Me me=new Me();  
                                    me.setMeEmail(et_register_account.getText().toString().trim());  
                                    me.setMePwd(et_register_pwd.getText().toString().trim());  
                                    me.setMeName(et_register_nickName.getText().toString().trim());                                       
                                      
                                    Log.v(TAG, "clientThread data loaded。。。");                                        
                                    meApiCall.register(me);  
                                    Log.v(TAG, "clientThread callback。。。");  
                                  
                                    handler.sendEmptyMessage(AppConfig.Register.SUCCESS_MSG);  
                                  
                                      
                                   clienThread.interrupt();   //中断线程   
                                }  
                            } catch (InterruptedException e) {  
                                // TODO: handle exception   
                                Log.v(TAG, "clientThread is interrupt");  
                            }catch (Exception e) {  
                                // TODO Auto-generated catch block   
                                Log.v(TAG, "exception: "+e.getMessage());  
                                handler.sendEmptyMessage(AppConfig.Register.FAIL_OTHER_MSG);  
                                e.printStackTrace();  
                            }  
                        };  

                    };  
                    Log.v(TAG, "progressDialog prepare01。。。:");  
                    progressDialog=ProgressDialog.show(Register.this,   
                                                       "",   
                                                       "正在获取....",   
                                                       true,   
                                                       true,  
                                                       new DialogInterface.OnCancelListener() {  
                                                          
                                                        @Override  
                                                        public void onCancel(DialogInterface dialog) {  
                                                            // TODO Auto-generated method stub   
                                                              
                                                                try {  
                                                                    clienThread.interrupt();  
                                                                    Log.v(TAG, "interrupt is success!");  
                                                                } catch (Exception e) {  
                                                                    // TODO Auto-generated catch block   
                                                                    Log.v(TAG, "interrupt is fail!");  
                                                                    e.printStackTrace();  
                                                                }  
                                                          
                                                        }  
                                                    }  
                                                      );  
                    Log.v(TAG, "clientThread prepareing_end。。。");  
                    clienThread.start();  
                    //Log.v(TAG, "clientThread prepareing_end。。。");   
                } catch (Exception e) {  
                    // TODO Auto-generated catch block   
                    Log.v(TAG, e.getMessage()+" 00");  
                    e.printStackTrace();  
                }  
                  
                  
            }  
              
        }  
    });