java - My app force closes after selecting an image from gallery -

i trying make upload function in app, app force closes after selecting image on gallery. code

addcatergory.java

public class addcategory extends appcompatactivity implements view.onclicklistener {  private button buttonchoose; private button buttonupload; private imageview imageview; private edittext edittextname; private bitmap bitmap; private int pick_image_request = 1; private string upload_url ="http://knyjayjay.16mb.com/products/upload.php"; private string key_image = "image"; private string key_name = "name"; @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_add_category);     buttonupload = (button) findviewbyid(r.id.btn_addcat);     buttonchoose = (button) findviewbyid(r.id.chooseimgbtn);     buttonchoose = (button) findviewbyid(r.id.chooseimgbtn);     buttonupload = (button) findviewbyid(r.id.btn_addcat);     edittextname = (edittext) findviewbyid(r.id.input_name);     imageview  = (imageview) findviewbyid(r.id.imageview);     buttonchoose.setonclicklistener(this);     buttonupload.setonclicklistener(this); } public string getstringimage(bitmap bmp){     bytearrayoutputstream baos = new bytearrayoutputstream();     bmp.compress(bitmap.compressformat.jpeg, 100, baos);     byte[] imagebytes = baos.tobytearray();     string encodedimage = base64.encodetostring(imagebytes, base64.default);     return encodedimage; } private void uploadimage(){     //showing progress dialog     final progressdialog loading = progressdialog.show(this,"uploading","please wait...",false,false);     stringrequest stringrequest = new stringrequest(request.method.post, upload_url,             new response.listener<string>() {                 @override                 public void onresponse(string s) {                     //disimissing progress dialog                     loading.dismiss();                     //showing toast message of response                     toast.maketext(addcategory.this, s , toast.length_long).show();                 }             },             new response.errorlistener() {                 @override                 public void onerrorresponse(volleyerror volleyerror) {                     //dismissing progress dialog                     loading.dismiss();                      //showing toast                     toast.maketext(addcategory.this, volleyerror.getmessage().tostring(), toast.length_long).show();                 }             }){         @override         protected map<string, string> getparams() throws authfailureerror {             //converting bitmap string             string image = getstringimage(bitmap);             //getting image name             string name = edittextname.gettext().tostring();             //creating parameters             map<string,string> params = new hashtable<string, string>();             //adding parameters             params.put(key_image, image);             params.put(key_name, name);              //returning parameters             return params;         }     };     //creating request queue     requestqueue requestqueue = volley.newrequestqueue(this);     //adding request queue     requestqueue.add(stringrequest); } private void showfilechooser() {     intent intent = new intent();     intent.settype("image/*");     intent.setaction(intent.action_get_content);     startactivityforresult(intent.createchooser(intent, "select picture"), pick_image_request); } @override protected void onactivityresult(int requestcode, int resultcode, intent data) {     super.onactivityresult(requestcode, resultcode, data);     if (requestcode == pick_image_request && resultcode == result_ok && data != null && data.getdata() != null) {         uri filepath = data.getdata();         try {             //getting bitmap gallery             bitmap = mediastore.images.media.getbitmap(getcontentresolver(), filepath);             //setting bitmap imageview             imageview.setimagebitmap(bitmap);         } catch (ioexception e) {             e.printstacktrace();         }     } } @override public void onclick(view v) {      if(v == buttonchoose){         showfilechooser();     }      if(v == buttonupload){         uploadimage();     } }  } 

and error in logcat this

java.lang.runtimeexception: failure delivering result resultinfo{who=null, request=1, result=-1, data=intent { dat=content://media/external/images/media/10608 }} activity {com.jayjaudian.warehousemanagement/com.jayjaudian.warehousemanagement.activity.addcategory}: java.lang.nullpointerexception @ android.app.activitythread.deliverresults(activitythread.java) @ android.app.activitythread.handlesendresult(activitythread.java) @ android.app.activitythread.access$1300(activitythread.java) @ android.app.activitythread$h.handlemessage(activitythread.java) @ android.os.handler.dispatchmessage(handler.java) @ android.os.looper.loop(looper.java) @ android.app.activitythread.main(activitythread.java) @ java.lang.reflect.method.invokenative(native method) @ java.lang.reflect.method.invoke(method.java:515) @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:836) @ com.android.internal.os.zygoteinit.main(zygoteinit.java:652) @ de.robv.android.xposed.xposedbridge.main(xposedbridge.java:132) @ dalvik.system.nativestart.main(native method) caused by: java.lang.nullpointerexception @ com.jayjaudian.warehousemanagement.activity.addcategory.onactivityresult(addcategory.java:148) @ android.app.activity.dispatchactivityresult(activity.java) ... 13 more 

i know it's kinda late in case needed

you should use input stream uri , this

inputstream = getcontentresolver().openinputstream(data.getdata());

and then

bitmap = bitmapfactory.decodestream(is); 

it works me