php - My Android app is not getting any response from server -

-



i'm beginner in android. i'm trying receive data server , check entered username , password correct or not, it's not getting response event showing "wrong match". checked json output suppose show success if entered "hello" name , "hi" password it's not showing on button click. i've added internet permission in manifest.xml.

mainactivity.java

public class mainactivity extends appcompatactivity {  private static final string register_url = "http://192.168.43.218/define_testing.php";  edittext username,pass;  button login;  @override  protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);     login = (button) findviewbyid(r.id.login);     username=(edittext)findviewbyid(r.id.username);     pass=(edittext)findviewbyid(r.id.password);     login.setonclicklistener(             new view.onclicklistener() {                 @override                 public void onclick(view v) {                  stringrequest request=new stringrequest(register_url, new response.listener<string>() {                         @override                         public void onresponse(string response) {                             try {                                 jsonobject jso= new jsonobject(response);                                  jsonarray array = null;                                  array = jso.getjsonarray("result");                                      jsonobject obj = array.getjsonobject(0);                                     string name= obj.getstring("name");                                     string password=obj.getstring("password");                                      string entername=username.gettext().tostring();                                     string enterpass=pass.gettext().tostring();                                     if(name.equals(entername) && password.equals(enterpass)){                                         toast.maketext(getapplicationcontext(),"success",toast.length_short).show();                                     }                                     else {                                         toast.maketext(getapplicationcontext(),"wrong match",toast.length_short).show();                                     }                                }                             catch (jsonexception e1) {                                 e1.printstacktrace();                             }                         }},new response.errorlistener() {                         @override                         public void onerrorresponse(volleyerror error) {                             toast.maketext(getapplicationcontext(),"internet problem",toast.length_short).show();                         }                     });                     requestqueue requestqueue= volley.newrequestqueue(getapplicationcontext());                     requestqueue.add(request);                 }             }     );      }   }

php script

<?php  require ('connection.php');    $name  = 'hello';   $sql = "select * new_one_user_information username='".$name."'";   $r = mysqli_query($connect,$sql);   $res = mysqli_fetch_array($r);  $result = array();  array_push($result,array( "name"=>$res['username'], "password"=>$res['password']       )      );  echo json_encode(array("result"=>$result));    mysqli_close($connect);  ?>

output of php script is:

connection established {"result":[{"name":"hello","password":"hi"}]}

error in logcat:

org.json.jsonexception: value connection of type java.lang.string cannot converted jsonobject   @ org.json.json.typemismatch(json.java:111)   @ org.json.jsonobject.<init>(jsonobject.java:159)   @ org.json.jsonobject.<init>(jsonobject.java:172)   @ com.example.srinu.stackview2.mainactivity.checkit(mainactivity.java:85)   @ com.example.srinu.stackview2.mainactivity$1$1.onresponse(mainactivity.java:68)   @ com.example.srinu.stackview2.mainactivity$1$1.onresponse(mainactivity.java:50)   @ com.android.volley.toolbox.stringrequest.deliverresponse(stringrequest.java:67)   @ com.android.volley.toolbox.stringrequest.deliverresponse(stringrequest.java:30)   @ com.android.volley.executordelivery$responsedeliveryrunnable.run(executordelivery.java:99)   @ android.os.handler.handlecallback(handler.java:733)   @ android.os.handler.dispatchmessage(handler.java:95)   @ android.os.looper.loop(looper.java:136)   @ android.app.activitythread.main(activitythread.java:5001)   @ java.lang.reflect.method.invokenative(native method)   @ java.lang.reflect.method.invoke(method.java:515)   @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:785)   @ com.android.internal.os.zygoteinit.main(zygoteinit.java:601)   @ dalvik.system.nativestart.main(native method)

there must "connection established" message inside required connection.php file.

and that's reason why php response not valid json.





wiki

Comments

Post a Comment

Popular posts from this blog

Asterisk AGI Python Script to Dialplan does not work -

-
i'm stuck project have check database of sip extension incoming caller id , dial sip extension. below receive when run script on asterisk cli. -- registered sip '9125' @ 192.168.1.102:50142 > saved useragent "zoiper rv2.8.40" peer 9125 [2017-08-22 13:53:33] notice[5095]: chan_sip.c:24558 handle_response_peerpoke: peer '9125' reachable. (17ms / 2000ms) == using sip rtp tos bits 184 == using sip rtp cos mark 5 -- executing [0112617769@from-trunk:1] answer("sip/obitrunk1-0000000d", "") in new stack > 0x1ca50d0 -- probation passed - setting rtp source address 192.168.1.98:16834 -- executing [0112617769@from-trunk:2] agi("sip/obitrunk1-0000000d", "test.py") in new stack -- launched agi script /var/lib/asterisk/agi-bin/test.py args: ['/var/lib/asterisk/agi-bin/test.py'] env line: agi_request: test.py env line: agi_channel: sip/obitrunk1-0000000d env line: agi_language: en env line: a
Read more

python - Read npy file directly from S3 StreamingBody -

-
i have many .npy (numpy) , .json files saved in s3, need download , load these files. for json files downloading files , loading dictionary using following code: obj = s3.object(bucket, key) response = obj.get() body = response['body'].read().decode('utf-8') data = json.loads(body) that way avoid writing .json file disk , reading it. now want same .npy files, equivalent? currently downloading file, saving temp file on disk , loading np.load avoid if possible. following https://stackoverflow.com/a/28196540/3509999 : obj = s3.object(bucket, key) io.bytesio(obj.get()["body"].read()) f: # rewind file f.seek(0) arr = np.load(f) wiki
Read more

kotlin - Out-projected type in generic interface prohibits the use of metod with generic parameter -

-
i start using kotlin , defined interface this: interface aadapter<vh : recyclerview.viewholder> { fun oncreateaviewholder(parent: viewgroup): vh fun onbindaviewholder(v: vh, position: int) } and when try use on code: class klasa ( private val adapter: aadapter<*> ) { fun dosth(){ //... val vh = this.adapter.oncreateaviewholder(parent) //on below line error adapter.onbindaviewholder(v, position) //... } } i error out-projected type 'aadapter<*>' prohibits use of 'public abstract fun onbindaviewholder(v: t, position: int): unit i tied add "in" or "out" definition i'm confused. how allow it. replace aadapter<*> aadapter<recyclerview.viewholder> . class klasa ( private val adapter: aadapter<recyclerview.viewholder> ) { // ... because have declared aadapter has type parameter vh type subclass of recyclerview.
Read more