小编Dha*_*mar的帖子

如何使用Volley库为API 进行Http身份验证？

我尝试了以下代码....它抛出运行时异常和空指针异常.请提供建议

String url = "Site url";
String host = "hostName";
int port = 80;
String userName = "username";
String password = "Password";
DefaultHttpClient client = new DefaultHttpClient();
AuthScope authscope = new AuthScope(host, port);
Credentials credentials = new UsernamePasswordCredentials(userName, password);
client.getCredentialsProvider().setCredentials(authscope, credentials);
HttpClientStack stack = new HttpClientStack(client);
RequestQueue queue =  Volley.newRequestQueue(VolleyActivity.this, stack);

我是android开发的新手.我需要知道的最大内存大小的堆栈中的机器人
,我想知道有多少活动的Android应用程序可以被存储在堆栈中

谢谢