Volley--volley basic usage of Android network development (i)

1. Stringrequest usage

It is divided into 3 main steps:

(1), instantiate a Requestqueue object

(2), set the Stringrequest object parameter, and add the Stringrequest object to the Requestqueue queue

(3), execute Start () method

 Public classStringactivityextendsActivity {PrivateTextView mtvshow; PrivateRequestqueue Requestqueue; @Overrideprotected voidonCreate (Bundle savedinstancestate) {//TODO auto-generated Method Stub        Super. OnCreate (savedinstancestate);                Setcontentview (r.layout.activity_string);    Initview (); }         Public voidInitview () {mtvshow=(TextView) Findviewbyid (r.id.tv_string); Requestqueue=Volley.newrequestqueue (Getbasecontext ());        Requestqueue.add (stringrequest);    Requestqueue.start (); }        /**stringrequest request, default is get*/     PublicStringrequest stringrequest =NewStringrequest ("http://www.baidu.com",NewListener<string>() {@Override Public voidOnresponse (String response) {//TODO auto-generated Method StubToast.maketext (Getbasecontext (), response, Toast.length_short). Show (); }            }, NewErrorlistener () {@Override Public voidonerrorresponse (volleyerror error) {//TODO auto-generated Method StubLOG.E ("Stringrequest", error.tostring ());        }            }); /**Stringrequest POST request, but need to rewrite anonymous class getparams ()*/stringrequest StringRequest1=NewStringrequest (Method.post, "http://www.baidu.com",NewListener<string>() {@Override Public voidOnresponse (String response) {//TODO auto-generated Method StubMtvshow.settext (response); }    }, NewErrorlistener () {@Override Public voidonerrorresponse (volleyerror error) {//TODO auto-generated Method StubLOG.E ("Stringrequest", error.tostring ()); }            }){        //functions that need to be rewritten to get arguments        protectedMap<string,string> Getparams ()throwsAuthfailureerror {Map<string, string> map =NewHashmap<string, string>(); Map.put ("WD", "Get Started"); Map.put ("RSV_SPT", "Don't start."); returnmap;    }; };}

2. Do not forget to join the network access rights

<uses-permission android:name= "Android.permission.INTERNET"/>

3. Reference Blog:

http://blog.csdn.net/guolin_blog/article/details/17482095/

http://blog.csdn.net/xyz_lmn/article/details/12165391

4, the first time to write a blog, what are the problems we have more advice!

Volley--volley basic usage of Android network development (i)