android - ImageView not showing image in activity -

i made app use default camera take photo displays on image view.problem is, image not show in image view. tried many ways no solution.

mainactivity.java:

public class mainactivity extends activity {      private static final int activity_start_camera_app = 0;     static final int request_image_capture = 1;     private imageview mphotocapturedimageview;      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_main);         mphotocapturedimageview = (imageview) findviewbyid(r.id.capturephotoimageview);     }      public void takephoto(view view){         intent callcameraapplicationintent = new intent();         callcameraapplicationintent.setaction(mediastore.action_image_capture);         startactivityforresult(callcameraapplicationintent, activity_start_camera_app);     }      protected void onactivityresult(int requestcode, int resultcode, intent data) {         toast.maketext(this, "picture taken sucessfully!", toast.length_short).show();         if (requestcode == request_image_capture && resultcode == result_ok) {             bundle extras = data.getextras();             bitmap imagebitmap = (bitmap) extras.get("data");             mphotocapturedimageview.setimagebitmap(imagebitmap);         }     } } 

main_activity.xml:

<?xml version="1.0" encoding="utf-8"?> <android.support.constraint.constraintlayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:app="http://schemas.android.com/apk/res-auto"     xmlns:tools="http://schemas.android.com/tools"     android:layout_width="match_parent"     android:layout_height="match_parent"     tools:context="com.example.taufiq.ocrdemo.mainactivity">      <imageview         android:id="@+id/capturephotoimageview"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_above="@+id/photobutton"         android:layout_marginbottom="19dp"         android:layout_marginend="43dp"         android:layout_marginleft="43dp"         android:layout_marginright="43dp"         android:layout_marginstart="43dp"         android:layout_margintop="16dp"         android:contentdescription="@string/preview"         android:minheight="300dp"         app:layout_constraintbottom_totopof="@+id/photobutton"         app:layout_constraintleft_toleftof="parent"         app:layout_constraintright_torightof="parent"         app:layout_constrainttop_totopof="parent"         tools:ignore="missingconstraints"         tools:layout_constraintbottom_creator="1"         tools:layout_constraintleft_creator="1"         tools:layout_constraintright_creator="1"         tools:layout_constrainttop_creator="1"         tools:minheight="300dp" />      <button         android:id="@+id/photobutton"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:onclick="takephoto"         android:text="@string/capture_photo"         android:layout_weight="1"         tools:ignore="missingconstraints"         tools:layout_constraintright_creator="1"         tools:layout_constraintbottom_creator="1"         app:layout_constraintbottom_tobottomof="parent"         app:layout_constraintright_torightof="parent"         tools:layout_constraintleft_creator="1"         android:layout_marginbottom="27dp"         app:layout_constraintleft_toleftof="parent" />  </android.support.constraint.constraintlayout> 

problem here :

if (requestcode == request_image_capture && resultcode == result_ok) { 

you starting activity requestcode activity_start_camera_app

startactivityforresult(callcameraapplicationintent, activity_start_camera_app); 

so need modify if condition like:

 if (requestcode == activity_start_camera_app && resultcode == result_ok) {