内部类会暂停主类/线程创建方案

//创建新线程处理联网动作,并更新屏幕
        (new Thread(){
                    public void run(){
                        UiApplication.getUiApplication().invokeLater(
                            new Runnable(){
                                    public void run(){                        
                                        try {
                                            String respBody = Util.getViaHttpConnection(url);//url是requestToken方法中的变量,必须声明成final;
                                            OAuthMessage responseMessage = new OAuthMessage();
                                            responseMessage.parseResponseStringForToken(respBody);
                                            RequestToken token=new RequestToken(responseMessage.getToken(), responseMessage.getTokenSecret());
                                            TextField text = new TextField();
                                            text.setText(respBody);                        
                                            screen.add(text);//requestToken参数,必须声明成final
                                        } catch (OAuthBadDataException e) {
                                            System.out.println("debug>" + e.toString() + ";");
                                        }catch (Exception e){
                                            System.out.println("debug>" + e.getMessage());
                                        }    
                                    };
                            }
                       );
                    };
       }).start();

把这节代码放在一个方法或 是另一个方法中,测试发现主线程还是lock了,最后得知,内部类是会暂停主类的;

需要修改成

---------

把下页代码放到类的内部,因为打算多个地方调用,回调也不一样,所以使用字符比较方式,因为平台不支持getMethod();

//线程子类,必须使用类创建,使用匿名类时,还是会暂停主类
    private class newThread extends Thread{
        newThread(Consumer caller, String run, String call, Object obj, Object screen){
            this.run = run;
            this.call = call;
            this.caller = caller;
            this.obj = obj;
            this.screen = screen;
        }
        
        public void run(){
            startCall();            
        }
        
        private Object startRun(){
            if ( run.equals("getUrl") ){
                return Util.getViaHttpConnection((String) obj);                
            }else{
                return null;
            }            
        }
        
        private void startCall(){
            Object reObj = startRun();
            
            if ( call.equals("requestToken") ){
                caller.requestTokenCall((String)reObj, (ReaderScreen) screen);
            }
        }
        
        private Consumer caller = null;
        private String run = null;
        private String call = null;
        private Object obj = null;
        private Object screen = null;
    }

-----

启动线程

new newThread(this, "getUrl", "requestToken", url, screen).start();

----

回调方法,更新ui
    
 

private void requestTokenCall(final String respBody, final ReaderScreen screen){
        UiApplication.getUiApplication().invokeLater(
            new Runnable(){
                    public void run(){                        
                        try {
                            System.out.println("tip>respBody " + respBody);
                            OAuthMessage responseMessage = new OAuthMessage();
                            responseMessage.parseResponseStringForToken(respBody);
                            RequestToken token=new RequestToken(responseMessage.getToken(), responseMessage.getTokenSecret());
                            TextField text = new TextField();
                            text.setText(respBody);                        
                            screen.add(text);//requestToken参数,必须声明成final
                        } catch (OAuthBadDataException e) {
                            System.out.println("debug>" + e.toString() + ";");
                        }catch (Exception e){
                            System.out.println("debug>" + e.getMessage());
                        }    
                    };
            }
       );
    }

------------------

方案二,此方案更加合理点,每个线程维护一个runnable接口实现

// 请求token
    public void requestToken(ReaderScreen screen){
        OAuthMessage requestMessage = new OAuthMessage();
        requestMessage.setRequestURL(REQUEST_TOKEN_URL);
        requestMessage.setConsumerKey(config.getKey());
        if (OAUTH_COMSUMER_CALLBACK != null)
            requestMessage.setCallback(OAUTH_COMSUMER_CALLBACK);
        requestMessage.createSignature(oauth_comsumer_method, config.getSecret());
        System.out.println("debug>endpoint:" + REQUEST_TOKEN_URL + ";");
        final String url=REQUEST_TOKEN_URL + "?" + requestMessage.convertToUrlParameters();
        System.out.println("debug>visit for url = endpoint + requestMessage.convertToUrlParameters() : "+url + ";");
        new Thread(new requestTokenRun(url, screen)).start();//启动线程
    }
    
    //线程子类,必须使用类创建,使用匿名类时,还是会暂停主类
    private class requestTokenRun implements Runnable{
        requestTokenRun(String url, ReaderScreen screen){
            this.url = url;
            this.screen = screen;
        }
        
        public void run(){                       
            try {
                final String respBody = Util.getViaHttpConnection(url);//必须声明final invokeLater才能使用;
                System.out.println("tip>respBody " + respBody);
                OAuthMessage responseMessage = new OAuthMessage();
                responseMessage.parseResponseStringForToken(respBody);
                RequestToken token=new RequestToken(responseMessage.getToken(), responseMessage.getTokenSecret());

                UiApplication.getUiApplication().invokeLater(
                    new Runnable(){
                            public void run(){ 
                                    TextField text = new TextField();
                                    text.setText(respBody);                        
                                    screen.add(text);
                            };
                    }
               );
            }catch (Exception e){
                System.out.println("tip>requestTokenRun " + e);
            }    
        }
        
        private String url = null;
        private ReaderScreen screen = null;
    }