Android Camera data intent returns null

Question

I have an android application which contains multiple activities    In one of them I m using a button which will call the device camera    public void onClick View view        Intent photoIntent   new Intent MediaStore ACTION IMAGE CAPTURE       startActivityForResult photoIntent  IMAGE CAPTURE       In the same activity I call the OnActivityResult method for the image result     Override protected void onActivityResult int requestCode  int resultCode  Intent data        if  requestCode    IMAGE CAPTURE            if  resultCode    RESULT OK                Bitmap image    Bitmap  data getExtras   get  data                ImageView imageview    ImageView  findViewById R id pic               imageview setImageBitmap image             else if  resultCode    RESULT CANCELED                Toast makeText this   CANCELED    Toast LENGTH LONG  show                        The problem is that the intent data is null and the OnActivityResult method turns directly to the  resultCode    RESULT CANCELED  and the application returns to the previous avtivity   How can I fix this issue and after calling the camera  the application returns to the current activity which contains an ImageView which will contains the picture taken   Thanks

User · Answer

Simple working camera app avoiding the null intent problem

- all changed code included in this reply; close to android tutorial

I've been spending plenty of time on this issue, so I decided to create an account and share my outcomes with you.

The official android tutorial "Taking Photos Simply" turned out to not quite hold what it promised. The code provided there did not work on my device: a Samsung Galaxy S4 Mini GT-I9195 running android version 4.4.2 / KitKat / API Level 19.

I figured out that the main problem was the following line in the method invoked when capturing the photo (dispatchTakePictureIntent in the tutorial):

takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);

It resulted in the intent subsequently catched by onActivityResult being null.

To solve this problem, I pulled much inspiration out of earlier replies here and some helpful posts on github (mostly this one by deepwinter - big thanks to him; you might want to check out his reply on a closely related post as well).

Following these pleasant pieces of advice, I chose the strategy of deleting the mentioned putExtra line and doing the corresponding thing of getting back the taken picture from the camera within the onActivityResult() method instead. The decisive lines of code to get back the bitmap associated with the picture are:

        Uri uri = intent.getData();
        Bitmap bitmap = null;
        try {
            bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), uri);
        } catch (IOException e) {
            e.printStackTrace();
        }

I created an exemplary app which just has the ability to take a picture, save it on the SD card and display it. I think this might be helpful to people in the same situation as me when I stumbled on this issue, since the current help suggestions mostly refer to rather extensive github posts which do the thing in question but aren't too easy to oversee for newbies like me. With respect to the file system Android Studio creates per default when creating a new project, I just had to change three files for my purpose:

activity_main.xml :

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
android:orientation="vertical"
tools:context="com.example.android.simpleworkingcameraapp.MainActivity">

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:onClick="takePicAndDisplayIt"
    android:text="Take a pic and display it." />

<ImageView
    android:id="@+id/image1"
    android:layout_width="match_parent"
    android:layout_height="200dp" />

</LinearLayout>

MainActivity.java :

package com.example.android.simpleworkingcameraapp;

import android.content.Intent;
import android.graphics.Bitmap;
import android.media.Image;
import android.net.Uri;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.ImageView;
import android.widget.Toast;

import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class MainActivity extends AppCompatActivity {

private ImageView image;
static final int REQUEST_TAKE_PHOTO = 1;
String mCurrentPhotoPath;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    image = (ImageView) findViewById(R.id.image1);
}

// copied from the android development pages; just added a Toast to show the storage location
private File createImageFile() throws IOException {
    // Create an image file name
    String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmm").format(new Date());
    String imageFileName = "JPEG_" + timeStamp + "_";
    File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
    File image = File.createTempFile(
            imageFileName,  /* prefix */
            ".jpg",         /* suffix */
            storageDir      /* directory */
    );

    // Save a file: path for use with ACTION_VIEW intents
    mCurrentPhotoPath = image.getAbsolutePath();
    Toast.makeText(this, mCurrentPhotoPath, Toast.LENGTH_LONG).show();
    return image;
}

public void takePicAndDisplayIt(View view) {
    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
    if (intent.resolveActivity(getPackageManager()) != null) {
        File file = null;
        try {
            file = createImageFile();
        } catch (IOException ex) {
            // Error occurred while creating the File
        }

        startActivityForResult(intent, REQUEST_TAKE_PHOTO);
    }
}

@Override
protected void onActivityResult(int requestCode, int resultcode, Intent intent) {
    if (requestCode == REQUEST_TAKE_PHOTO && resultcode == RESULT_OK) {
        Uri uri = intent.getData();
        Bitmap bitmap = null;
        try {
            bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), uri);
        } catch (IOException e) {
            e.printStackTrace();
        }
        image.setImageBitmap(bitmap);
    }
}
}

AndroidManifest.xml :

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.android.simpleworkingcameraapp">


<!--only added paragraph-->
<uses-feature
    android:name="android.hardware.camera"
    android:required="true" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />  <!-- only crucial line to add; for me it still worked without the other lines in this paragraph -->
<uses-permission android:name="android.permission.CAMERA" />


<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:roundIcon="@mipmap/ic_launcher_round"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">
    <activity android:name=".MainActivity">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

</manifest>

Note that the solution I found for the problem also led to a simplification of the android manifest file: the changes suggested by the android tutorial in terms of adding a provider are no longer needed since I am not making use of any in my java code. Hence, only few standard lines -mostly regarding permissions- had to be added to the manifest file.

It might additionally be valuable to point out that Android Studio's autoimport may not be capable of handling java.text.SimpleDateFormat and java.util.Date. I had to import both of them manually.

User · Answer

Kotlin code that works for me    private fun takePhotoFromCamera               val intent   Intent android provider MediaStore ACTION IMAGE CAPTURE          startActivityForResult intent  PERMISSIONS REQUEST TAKE PICTURE CAMERA            And get Result     override fun onActivityResult requestCode  Int  resultCode  Int  data  Intent         super onActivityResult requestCode  resultCode  data   if  requestCode    PERMISSIONS REQUEST TAKE PICTURE CAMERA             if  resultCode    Activity RESULT OK               val photo  Bitmap     MediaStore Images Media getBitmap this contentResolver  Uri parse  data   dataString                     Do something here   set image to an ImageView or save it                     imgV pic imageBitmap   photo            else if  resultCode    Activity RESULT CANCELED                Log i TAG   Camera    RESULT CANCELED                          and don t forget to declare request code   companion object    const val PERMISSIONS REQUEST TAKE PICTURE CAMERA   300

User · Answer

The default Android camera application returns a non-null intent only when passing back a thumbnail in the returned Intent  If you pass EXTRA OUTPUT with a URI to write to  it will return a null intent and the picture is in the URI that you passed in   You can verify this by looking at the camera app s source code on GitHub    https   github com android platform packages apps camera blob gingerbread-release src com android camera Camera java L1186  Bundle newExtras   new Bundle    if  mCropValue equals  circle          newExtras putString  circleCrop    true      if  mSaveUri    null        newExtras putParcelable MediaStore EXTRA OUTPUT  mSaveUri     else       newExtras putBoolean  return-data   true        I would guess that you re either passing in EXTRA OUTPUT somehow  or the camera app on your phone works differently

User · Answer

I found an easy answer  it works    private void openCameraForResult int requestCode       Intent photo   new Intent MediaStore ACTION IMAGE CAPTURE       Uri uri    Uri parse  file    sdcard photo jpg        photo putExtra android provider MediaStore EXTRA OUTPUT  uri       startActivityForResult photo requestCode      if  requestCode    CAMERA REQUEST CODE            if  resultCode    Activity RESULT OK                File file   new File Environment getExternalStorageDirectory   getPath     photo jpg                Uri uri   Uri fromFile file               Bitmap bitmap              try                   bitmap   MediaStore Images Media getBitmap getContentResolver    uri                   bitmap   cropAndScale bitmap  300      if you mind scaling                 profileImageView setImageBitmap bitmap                 catch  FileNotFoundException e                       TODO Auto-generated catch block                 e printStackTrace                  catch  IOException e                       TODO Auto-generated catch block                 e printStackTrace                                     if you would like to crop and scale this image   public static  Bitmap cropAndScale  Bitmap source  int scale       int factor   source getHeight    lt   source getWidth     source getHeight    source getWidth        int longer   source getHeight    gt   source getWidth     source getHeight    source getWidth        int x   source getHeight    gt   source getWidth    0  longer-factor  2      int y   source getHeight    lt   source getWidth    0  longer-factor  2      source   Bitmap createBitmap source  x  y  factor  factor       source   Bitmap createScaledBitmap source  scale  scale  false       return source

User · Answer

The following code works for me   Intent cameraIntent   new Intent android provider MediaStore ACTION IMAGE CAPTURE   startActivityForResult cameraIntent  2     And here is the result   protected void onActivityResult int requestCode  int resultCode  Intent imageReturnedIntent         super onActivityResult requestCode  resultCode  imageReturnedIntent        if resultCode    RESULT OK                Uri selectedImage   imageReturnedIntent getData            ImageView photo    ImageView  findViewById R id add contact label photo           Bitmap mBitmap   null          try                       mBitmap   Media getBitmap this getContentResolver    selectedImage                     catch  IOException e                        e printStackTrace

User · Answer

To Access the Camera and take pictures and set ImageView on Android   You have to use Uri file   Uri fromFile getOutputMediaFile     for marshmallow   Use below link to get path  https   androidkennel org android-camera-access-tutorial

User · Answer

I  ve had experienced this problem  the intent is not null but the information sent via this intent is not received in onActionActivit      This is a better solution using getContentResolver          private Uri imageUri      private ImageView myImageView      private Bitmap thumbnail        Override     protected void onCreate Bundle savedInstanceState            super onCreate savedInstanceState           setContentView R layout activity main                                            myImageview    ImageView  findViewById R id pic           values   new ContentValues          values put MediaStore Images Media TITLE   MyPicture          values put MediaStore Images Media DESCRIPTION   Photo taken on     System currentTimeMillis           imageUri   getContentResolver   insert MediaStore Images Media EXTERNAL CONTENT URI  values         Intent intent   new Intent MediaStore ACTION IMAGE CAPTURE         intent putExtra MediaStore EXTRA OUTPUT  imageUri         startActivityForResult intent  PICTURE RESULT          the onActivityResult   get a bitmap stored by getContentResolver        Override     protected void onActivityResult int requestCode  int resultCode  Intent data            super onActivityResult requestCode  resultCode  data            if  requestCode    REQUEST CODE TAKE PHOTO  amp  amp  resultCode    RESULT OK                 Bitmap bitmap              try                   bitmap   MediaStore Images Media getBitmap getContentResolver    imageUri                   myImageView setImageBitmap bitmap                 catch  FileNotFoundException e                    e printStackTrace                  catch  IOException e                    e printStackTrace                                        Check my example in github   https   github com Jorgesys TakePicture

User · Answer

When we will capture the image from Camera in android then Uri or data getdata   comes null  we have two solutions to resolve this issue    We can got the Uri path from the Bitmap Image  We can got the Uri path from cursor    I will implement all methods here  Please carefully watch and read these -  First i will tell how to get Uri from Bitmap Image  Complete code is     First we will capture image through Intent that will same for both methods so this code i will write one time only here       Capture Image captureImg setOnClickListener new View OnClickListener         Override public void onClick View view           Intent intent new Intent MediaStore ACTION IMAGE CAPTURE           if intent resolveActivity getPackageManager     null               startActivityForResult intent reqcode                            Now we will Implement OnActivityResult  - This will be same for both above 2 methods  -   Override protected void onActivityResult int requestCode  int resultCode  Intent data        super onActivityResult requestCode  resultCode  data        if  requestCode    reqcode  amp  amp  resultCode    RESULT OK                 Bitmap photo    Bitmap  data getExtras   get  data            ImageView setImageBitmap photo               CALL THIS METHOD TO GET THE URI FROM THE BITMAP         Uri tempUri   getImageUri getApplicationContext    photo              Show Uri path based on Image         Toast makeText LiveImage this   Here     tempUri  Toast LENGTH LONG  show               Show Uri path based on Cursor Content Resolver         Toast makeText this   Real path for URI       getRealPathFromURI tempUri   Toast LENGTH SHORT  show              else               Toast makeText this   Failed To Capture Image   Toast LENGTH SHORT  show                   Now we will create all above method to create Uri from Image and Cursor methods via classes   Now  URI path from Bitmap Image  private Uri getImageUri Context applicationContext  Bitmap photo        ByteArrayOutputStream bytes   new ByteArrayOutputStream        photo compress Bitmap CompressFormat JPEG  100  bytes       String path   MediaStore Images Media insertImage LiveImage this getContentResolver    photo   Title   null       return Uri parse path         Uri from Real path of saved image  public String getRealPathFromURI Uri uri        Cursor cursor   getContentResolver   query uri  null  null  null  null       cursor moveToFirst        int idx   cursor getColumnIndex MediaStore Images ImageColumns DATA       return cursor getString idx

User · Answer

When we capture the image from Camera in Android then Uri or data getdata   becomes null  We have two solutions to resolve this issue    Retrieve the Uri path from the Bitmap Image  Retrieve the Uri path from cursor    This is how to retrieve the Uri from the Bitmap Image  First capture image through Intent that will be the same for both methods      Capture Image captureImg setOnClickListener new View OnClickListener          Override     public void onClick View view            Intent intent   new Intent MediaStore ACTION IMAGE CAPTURE           if  intent resolveActivity getPackageManager       null                startActivityForResult intent  reqcode                         Now implement OnActivityResult  which will be the same for both methods    Override protected void onActivityResult int requestCode  int resultCode  Intent data        super onActivityResult requestCode  resultCode  data        if requestCode  reqcode  amp  amp  resultCode  RESULT OK                Bitmap photo    Bitmap  data getExtras   get  data            ImageView setImageBitmap photo               CALL THIS METHOD TO GET THE URI FROM THE BITMAP         Uri tempUri   getImageUri getApplicationContext    photo               Show Uri path based on Image         Toast makeText LiveImage this  Here    tempUri  Toast LENGTH LONG  show                Show Uri path based on Cursor Content Resolver         Toast makeText this   Real path for URI     getRealPathFromURI tempUri   Toast LENGTH SHORT  show              else               Toast makeText this   Failed To Capture Image   Toast LENGTH SHORT  show              Now create all above methods to create the Uri from Image and Cursor methods   Uri path from Bitmap Image   private Uri getImageUri Context applicationContext  Bitmap photo        ByteArrayOutputStream bytes   new ByteArrayOutputStream        photo compress Bitmap CompressFormat JPEG  100  bytes       String path   MediaStore Images Media insertImage LiveImage this getContentResolver    photo   Title   null       return Uri parse path       Uri from Real path of saved image   public String getRealPathFromURI Uri uri        Cursor cursor   getContentResolver   query uri  null  null  null  null       cursor moveToFirst        int idx   cursor getColumnIndex MediaStore Images ImageColumns DATA       return cursor getString idx

User · Answer

After much try and study  I was able to figure it out  First  the variable data from Intent will always be null so  therefore  checking for  null will crash your app so long you are passing a URI to startActivityForResult Follow the example below  I will be using Kotlin    Open the camera intent  fun addBathroomPhoto    addbathroomphoto setOnClickListener       request capture image 2      var takePictureIntent Intent      takePictureIntent  Intent MediaStore ACTION IMAGE CAPTURE      if takePictureIntent resolveActivity activity  getPackageManager       null            val photoFile  File    try               createImageFile             catch  ex  IOException                   Error occurred while creating the File              null                    if  photoFile    null                val photoURI  Uri   FileProvider getUriForFile                  activity                     ogavenue ng hotelroomkeeping fileprovider  photoFile              takePictureIntent putExtra MediaStore EXTRA OUTPUT                  photoURI               startActivityForResult takePictureIntent                  request capture image                             Create the createImageFile   But you MUST make the imageFilePath variable global  Example on how to create it is on Android official documentation and pretty straightforward  Get Intent   override fun onActivityResult requestCode  Int  resultCode  Int  data  Intent      if  requestCode    1  amp  amp  resultCode    RESULT OK        add room photo txt text        var myBitmap BitmapFactory decodeFile imageFilePath      addroomphoto setImageBitmap myBitmap      var file File imageFilePath      var fis FileInputStream file      var bm   BitmapFactory decodeStream fis       roomphoto getBytesFromBitmap bm      The getBytesFromBitmap method    fun getBytesFromBitmap bitmap Bitmap  ByteArray     var stream ByteArrayOutputStream     bitmap compress Bitmap CompressFormat JPEG  100  stream     return stream toByteArray           I hope this helps

User · Answer

Probably because you had something like this   Intent takePictureIntent   new Intent MediaStore ACTION IMAGE CAPTURE                           Uri fileUri    CommonUtilities getTBCameraOutputMediaFileUri                      takePictureIntent putExtra MediaStore EXTRA OUTPUT  fileUri                           startActivityForResult takePictureIntent  2     However you must not put the extra output into the intent  because then the data goes into the URI instead of the data variable  For that reason  you have to take the two lines in the middle out  so that you have  Intent takePictureIntent   new Intent MediaStore ACTION IMAGE CAPTURE   startActivityForResult takePictureIntent  2     That  s what caused the problem for me  hope that helped

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Simple working camera app avoiding the null intent problem

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