0

您好我正在尝试从后台线程更新 UI。我正在以编程方式设置单选按钮的选择,但奇怪的是,当我运行应用程序时它不会更新 UI。但是当我逐步调试应用程序时,UI 会自行更新,这对我来说很奇怪。以下是我用来执行此操作的代码。

由于 post runnable 返回一个布尔值,并且它似乎对更新返回 true,但它不会更新 UNI,这很奇怪。

线

_internetConenctivityThread = new Thread(new Runnable() {

        @Override
        public void run() {
            // TODO Auto-generated method stub
            try
            {
                CheckInternetConnectivity(conManager);
                Thread.sleep(30000);
            }
            catch(Exception ex)
            {
                Log.d("_internetConnectivityThread", "Exception while checking connectivity: " + ex.getMessage());
            }
        }
    }); 
    _internetConenctivityThread.start();

检查方法

private void CheckInternetConnectivity(ConnectivityManager cm)
    {
        try
        {           
            NetworkInfo netInfo = cm.getActiveNetworkInfo();
            if (netInfo != null && netInfo.isConnected()) {

                mParent.connectivity.post(new Runnable() {

                    @Override
                    public void run() {
                        // TODO Auto-generated method stub
                        // Updating Status Monitor for connectivity
                        mParent.connectivity.setChecked(true);

                    }
                });         
            } 
            else 
            {
                mParent.connectivity.post(new Runnable() {

                    @Override
                    public void run() {
                        // TODO Auto-generated method stub
                        // Updating Status Monitor for connectivity
                        mParent.connectivity.setChecked(false);

                    }
                });                 
            }
        }
        catch(Exception ex)
        {
            ex.getMessage();
        }
    }
4

1 回答 1

0

尝试这个:

runOnUiThread(new Runnable() {
    public void run() {
        mParent.connectivity.setChecked(false);
    }
});
于 2013-02-08T13:10:56.700 回答