Storing file to external storage taking too much time

Question

I am trying to take a picture from my app using the local camera. It is taking too long to save the image in the said folder. Because of this time lag I am getting NullPointerException in my code using Bitmap library.

I have already checked for other answers related to the issue, I have provided the permissions in the AndroidManifest.xml, I have also provided Easy permission- implementation 'pub.devrel:easypermissions:0.2.1'. I am able to store the image externally but the image shows in the folder after 5-10 mins. And then the code is not able to read the image as it is not able to find it on the device. It shows up later after the app has crashed.

    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == CAMERA_REQUEST && resultCode == RESULT_OK) {

        Bitmap photo = BitmapFactory.decodeFile(f.getAbsolutePath());
        imageView.setImageBitmap(photo);

        Intent i = new Intent(Intent.ACTION_SEND);
        Uri uri = Uri.fromFile(f);
        i.putExtra(Intent.EXTRA_STREAM, uri);
        try {
            startActivity(Intent.createChooser(i, "Send mail..."));
        } catch (android.content.ActivityNotFoundException ex) {
            Toast.makeText(HomeScreen.this, "There are no email clients installed.", Toast.LENGTH_SHORT).show();
        }
        i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        i.setType("message/rfc822");
        i.putExtra(Intent.EXTRA_EMAIL  , new String[]{"abc@gmail.com"});
        i.putExtra(Intent.EXTRA_SUBJECT, "Subject");
        i.putExtra(Intent.EXTRA_TEXT   , "body of email");


    }
  }

The error is shown on this line imageView.setImageBitmap(photo);

D/AndroidRuntime: Shutting down VM
 java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1888, result=-1, data=Intent { dat=file:///storage/emulated/0/Pictures/pic/image-9747.jpg flg=0x1 }} to activity {com.example.pic/com.example.pic.HomeScreen}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ImageView.setImageBitmap(android.graphics.Bitmap)' on a null object reference
     at android.app.ActivityThread.deliverResults(ActivityThread.java:3779)
     at android.app.ActivityThread.handleSendResult(ActivityThread.java:3822)
     at android.app.ActivityThread.access$1400(ActivityThread.java:155)
     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1429)
     at android.os.Handler.dispatchMessage(Handler.java:102)
     at android.os.Looper.loop(Looper.java:152)
     at android.app.ActivityThread.main(ActivityThread.java:5497)
     at java.lang.reflect.Method.invoke(Native Method)
     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
  Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ImageView.setImageBitmap(android.graphics.Bitmap)' on a null object reference```

make sure you are using file provider , declared permissions in manifest — Quick learner, Jun 03 '19 at 06:13
there is nothing to do with the file, or speed it is saving at, your issue totally does not relate to that. Your `imageView` is null, that's why you are getting NPE. — Vladyslav Matviienko, Jun 03 '19 at 06:35
Possible duplicate of [What is a NullPointerException, and how do I fix it?](https://stackoverflow.com/questions/218384/what-is-a-nullpointerexception-and-how-do-i-fix-it) — Vladyslav Matviienko, Jun 03 '19 at 06:37

Rubick · Answer 1 · 2019-06-03T06:50:23.493

0

Have you add This on your onCreate()

imageView = (ImageView)findViewById(R.id.imageView2);

Sample ImageView declaration on Manifest.xml

 <ImageView
  android:id="@+id/uncheck_disp_act"
  android:layout_width="25dp"
  android:layout_height="25dp"
  app:srcCompat="@drawable/uncheck" />

edited Jun 03 '19 at 06:50

answered Jun 03 '19 at 06:25

Rubick

296
3
22

i am trying to send the image through email. So if i add this line, what would the id be. – Ritika Thakur Jun 03 '19 at 06:37
you should set it on you `Manifest.xml` – Rubick Jun 03 '19 at 06:48

Storing file to external storage taking too much time

1 Answers1