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"file:///storage/emulated/0/screenshot.png exposed beyond app through ClipData.Item.getUri()"

I'm trying to set up a share button on my app. The button is supposed to take a screenshot of a particular list view, and then allow the user to share this image via whatever means they want. To do this, I created three methods:
Take the screenshot
Save it in my storage
Share it to the user.
To do this I've written the following code:
public class ViewPlayerHistoryContents extends AppCompatActivity {
public static File imagePath;
public Bitmap takeScreenshot() {
View rootView = findViewById(android.R.id.content).getRootView();
rootView.setDrawingCacheEnabled(true);
return rootView.getDrawingCache();
}
public void saveBitmap(Bitmap bitmap) {
imagePath = new File(Environment.getExternalStorageDirectory() + "/screenshot.png");
FileOutputStream fos;
try {
fos = new FileOutputStream(imagePath);
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos);
fos.flush();
fos.close();
} catch (FileNotFoundException e) {
Log.e("GREC", e.getMessage(), e);
} catch (IOException e) {
Log.e("GREC", e.getMessage(), e);
}
}
private void shareIt() {
Uri uri = Uri.fromFile(imagePath);
Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND);
sharingIntent.setType("image/*");
String shareBody = "In Tweecher, My highest score with screen shot";
sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "My Tweecher score");
sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, shareBody);
sharingIntent.putExtra(Intent.EXTRA_STREAM, uri);
startActivity(Intent.createChooser(sharingIntent, "Share via"));
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.view_player_history);
shareButton = findViewById(R.id.shareButton);
View rootView = getWindow().getDecorView().findViewById(android.R.id.content);
shareButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Bitmap bitmap = takeScreenshot();
saveBitmap(bitmap);
shareIt();
}
});
}
}
With this code I keep getting the following error message:
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.transfergame, PID: 18477
android.os.FileUriExposedException: file:///storage/emulated/0/screenshot.png exposed beyond app through ClipData.Item.getUri()
Which to me sounds like it's because I'm using Uri and not FileProvider?
How should I be incorporating FileProvider in this?
I added the following permissions to my Android manifest file, but it hasn't done anything:
</application>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
How can I fix this error?
Thanks everyone

You can go through this
You have add provider in android manifest and also create the a File Provider in xml/provider.xml as the answer in thus link suggests.

public void captureImage() {
StrictMode.VmPolicy.Builder builder = new StrictMode.VmPolicy.Builder();
StrictMode.setVmPolicy(builder.build());
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
// start the image capture Intent
activity.startActivityForResult(intent, CAMERA_CAPTURE_IMAGE_REQUEST_CODE);
}

data null onActivityResult

Activity results is NullPointerException, What I have done wrong or missed?
Photo gallery application(Eventually), followed the instructions on the android developer site about taking photos with inbuilt camera. onActivityResult giving null pointer. I am new to android so can't figure it out.
Because of this it crashes, i expect it to show a bitmap in the activity.
public class aCamera extends AppCompatActivity {
static final int REQUEST_IMAGE_CAPTURE = 1;
static final int REQUEST_TAKE_PHOTO = 1;
ImageView imageView;
String currentPhotoPath;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_a_camera);
dispatchTakePictureIntent();
}
private void dispatchTakePictureIntent() {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
// Ensure that there's a camera activity to handle the intent
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
File photoFile = null;
try {
photoFile = createImageFile();
Log.i("DTPI-1", "dispatchTakePictureIntent: The IF AND TRY");
} catch (IOException ex) {
Log.i("DTPI-3" , "dispatchTakePictureIntent: catch");
}
// Continue only if the File was successfully created
if (photoFile != null) {
Log.i("photoURI", "dispatchTakePictureIntent: PHOTO FILE NOT EMPTY");
Uri photoURI = FileProvider.getUriForFile(this,
"com.example.android.fileprovider",
photoFile);
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);
//setResult(RESULT_OK, takePictureIntent);
}
}
}
private File createImageFile() throws IOException {
// Create an image file name
Log.i("CIF -1", "createImageFile: Create FILE");
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").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
currentPhotoPath = image.getAbsolutePath();
return image;
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
Log.i("Result", "onActivityResult: WE GET HERE");
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
Bundle extras = data.getExtras();
Bitmap imageBitmap = (Bitmap) extras.get("data");
imageView = findViewById(R.id.imageView);
imageView.setImageBitmap(imageBitmap);
}
}
Error logs.
2019-05-06 20:01:33.555 23363-23363/com.example.camera E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.camera, PID: 23363
java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1, result=-1, data=null} to activity {com.example.camera/com.example.camera.aCamera}: java.lang.NullPointerException: Attempt to invoke virtual method 'android.os.Bundle android.content.Intent.getExtras()' on a null object reference
at android.app.ActivityThread.deliverResults(ActivityThread.java:4339)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:4382)
at android.app.ActivityThread.-wrap19(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1654)
at android.os.Handler.dispatchMessage(Handler.java:105)
at android.os.Looper.loop(Looper.java:251)
at android.app.ActivityThread.main(ActivityThread.java:6572)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'android.os.Bundle android.content.Intent.getExtras()' on a null object reference
at com.example.camera.aCamera.onActivityResult(aCamera.java:81)
at android.app.Activity.dispatchActivityResult(Activity.java:7235)
at android.app.ActivityThread.deliverResults(ActivityThread.java:4335)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:4382) 
at android.app.ActivityThread.-wrap19(Unknown Source:0) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1654) 
at android.os.Handler.dispatchMessage(Handler.java:105) 
at android.os.Looper.loop(Looper.java:251) 
at android.app.ActivityThread.main(ActivityThread.java:6572) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767) 

The camera saves the image to the photoUri that you supply in your Intent. In onActivityResult you have to get the Bitmap from that file.

The line putExtra is the issue. Delete that line and receive bitmap in
onActivityResult like mentioned below.
#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);
}
}
Hope this works. You will see the explaination here on a post with similar issue.

As mentioned by #aalap patel, the issue is not with onActivityResult, it is with one line in dispatchTakePictureIntent method.
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
adding to this is the code that he also mentions.

How to save a bitmap in and share from cache?

I have a method that shares bitmap from the app with 3rd party social media apps. I am trying to save my bitmap to the cache folder and share it from there. This is my method:
public void shareMeme(Bitmap bitmap) {
String path = Objects.requireNonNull(getContext()).getCacheDir().getAbsolutePath();
Uri uri = Uri.parse(path);
Intent share = new Intent(Intent.ACTION_SEND);
share.setType("image/*");
share.putExtra(Intent.EXTRA_STREAM, uri);
share.putExtra(Intent.EXTRA_TEXT, "This is my Meme");
getContext().startActivity(Intent.createChooser(share, "Share Your Meme!"));
Toast.makeText(getContext(), "The Cache drive is: " + path, Toast.LENGTH_LONG).show();
}
The method gets the bitmap from another method through its parameters. I want to know how to incorporate the shareMeme(Bitmap bitmap) parameters with the above code.
UPDATE
AndroidManifest.xml:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.example.omar.memegenerator">
...
<application
...
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="com.example.omar.memegenerator.fileprovider"
android:grantUriPermissions="true"
android:exported="false">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="#xml/filepaths" />
</provider>
...
</application>
</manifest>
The new shareMeme(Bitmap bitmap) method:
public void shareMeme(Bitmap bitmap) {
String path = Objects.requireNonNull(getContext()).getCacheDir().getAbsolutePath();
File file = new File(path + "/Memes/" + timeStamp + counter + ".jpg");
Uri uri = FileProvider.getUriForFile(getContext(), "com.example.omar.memegenerator.fileprovider", file);
try {
OutputStream stream = new FileOutputStream(file);
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream);
stream.flush();
stream.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
Intent share = new Intent(Intent.ACTION_SEND);
share.setType("image/*");
share.putExtra(Intent.EXTRA_STREAM, uri);
share.putExtra(Intent.EXTRA_TEXT, "This is my Meme");
share.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
getContext().startActivity(Intent.createChooser(share, "Share Your Meme!"));
Toast.makeText(getContext(), "The Cache drive is: " + path, Toast.LENGTH_LONG).show();
}
Stack Trace:
2019-04-09 05:08:51.324 19288-19288/com.example.omar.memegenerator E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.omar.memegenerator, PID: 19288
java.lang.IllegalArgumentException: Failed to find configured root that contains /data/data/com.example.omar.memegenerator/cache/Memes/201904090.jpg
at android.support.v4.content.FileProvider$SimplePathStrategy.getUriForFile(FileProvider.java:739)
at android.support.v4.content.FileProvider.getUriForFile(FileProvider.java:418)
at com.example.omar.memegenerator.TopImageFragment.shareMeme(TopImageFragment.java:232)
at com.example.omar.memegenerator.TopImageFragment$6.onReceive(TopImageFragment.java:303)
at android.support.v4.content.LocalBroadcastManager.executePendingBroadcasts(LocalBroadcastManager.java:313)
at android.support.v4.content.LocalBroadcastManager$1.handleMessage(LocalBroadcastManager.java:121)
at android.os.Handler.dispatchMessage(Handler.java:105)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6703)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:769)

Step #1: Use compress() on Bitmap to save it to a file in getCacheDir()
Step #2: Add FileProvider to your project, configured to serve files from getCacheDir()
Step #3: Use FileProvider.getUriForFile(), instead of your existing code, to get a Uri to put in EXTRA_STREAM
Step #4: Add Intent.FLAG_GRANT_READ_URI_PERMISSION to the Intent before calling startActivity(), so the recipient has rights to access your content

Image not being shared to Apps

I want my users to be able to share an image and select an app to share it to whether its something like their native messenger app, or twitter. Whenever I go to select the app I want to share the image to, I get a message saying "This media can't be loaded" or something like that. Here is the sharing code in BitmapUtils.java
static void shareImage(Context context, String imagePath) {
// Create the share intent and start the share activity
File imageFile = new File(imagePath);
Intent shareIntent = new Intent(Intent.ACTION_SEND);
shareIntent.setType("image/*");
Uri photoURI = FileProvider.getUriForFile(context, FILE_PROVIDER_AUTHORITY, imageFile);
shareIntent.putExtra(Intent.EXTRA_STREAM, photoURI);
context.startActivity(shareIntent);
}
Here is my file provider code in my Manifest file:
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="com.aaronapp.hideme.fileprovider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="#xml/file_paths" />
Here is the file_paths file which contains the file paths.
<paths xmlns:android="http://schemas.android.com/apk/res/android">
<external-cache-path name="my_cache" path="." />
<external-path name="my_images" path="Pictures/" />
</paths>
Here is the share method that is invoked inside the MainActivity class.
/**
* OnClick method for the share button, saves and shares the new bitmap.
*/
#OnClick(R.id.share_button)
public void shareMe() {
// Delete the temporary image file
BitmapUtils.deleteImageFile(this, mTempPhotoPath);
// Share the image
BitmapUtils.shareImage(this, mTempPhotoPath);
}
If you need anymore information that I forgot to show I'll be happy to supply it. I'm trying to fix this issue and get my images to share to different apps(I know Facebook has a certain way of sharing images, but I will tackle that later)
You can also replicate this issue by downloading the Hide me, Emoji App on the google play store, taking a picture and trying to share it across your apps.https://play.google.com/store/apps/details?id=com.aaronapp.hideme

This will allow you to read files from Internal or external sdcard.
Add this in manifest.xml
<!-- this is For Access External file Storage -->
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="com.demo.test.provider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="#xml/file_paths"/>
</provider>
file_paths.xml
<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
<external-path
name="external_files"
path="." />
<root-path
name="external_files"
path="/storage/"/>
</paths>

Try with adding flag Intent.FLAG_GRANT_READ_URI_PERMISSION to Intent
The file you want to share with another app, you need to allow the client app to access the file. To allow access, grant permissions to the client app by adding the content URI to an Intent and then setting permission flags on the Intent.
// Grant temporary read permission to the content URI
shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
The permissions you grant are temporary and expire automatically when the receiving app's task stack is finished.

Please try this code, this is working in my case
File filePath = new File(FIlePath);
Intent intent = new Intent();
intent.setAction(Intent.ACTION_SEND_MULTIPLE);
ArrayList<Uri> uriArrayList = new ArrayList<>();
uriArrayList.add(getUriFromFilePath(filePath));
intent.setType("image/*");
intent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, uriArrayList);
startActivity(intent);
public Uri getUriFromFilePath(Context theCtx, File theSrcPath) {
Uri requirdUri = null;
// observation
// SDKversion: 25 -- Uri.fromFile Not working, So we have to use Provider
// FileProvider.getUriForFile will not work when the file is located in external Sdcard.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
requirdUri = FileProvider.getUriForFile(theCtx,
theCtx.getApplicationContext().getPackageName() + PROVIDER_FILE_EXTENSION,
theSrcPath);
} else {
requirdUri = Uri.fromFile(theSrcPath);
}
return requirdUri;
}

I have done following changes in your code, i had tested app after
changes and able to share image now.
Please check and let me know.
in MainActivity, shareMe method you have delete the temp file before sharing that why the error was occured.
now i have delete the Temp file after sharing.
Modified code in MainActivity.java
public static final int REQUEST_CODE_SHARE_FILE = 100;
public void shareMe()
{
// BitmapUtils.deleteImageFile(this, mTempPhotoPath); delete temp file in on activity result.
BitmapUtils.shareImage(MainActivity.this, mTempPhotoPath);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
//If the image capture activity was called and was successful
if(requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK)
{
processAndSetImage();
}
else if(requestCode == REQUEST_CODE_SHARE_FILE)
{
BitmapUtils.deleteImageFile(this, mTempPhotoPath);
}else {
BitmapUtils.deleteImageFile(this, mTempPhotoPath);
}
}
Modified code in BitmapUtils.java
static void shareImage(Activity activity, String imagePath) {
// Create the share intent and start the share activity
File imageFile = new File(imagePath);
Intent shareIntent = new Intent(Intent.ACTION_SEND);
shareIntent.setType("image/*");
Uri photoURI = FileProvider.getUriForFile(activity, FILE_PROVIDER_AUTHORITY, imageFile);
shareIntent.putExtra(Intent.EXTRA_STREAM, photoURI);
activity.startActivityForResult(shareIntent,MainActivity.REQUEST_CODE_SHARE_FILE);
}
I am testing your app on the device with Android version 6.0 and app gets crashed every time.
Inside detectFacesandOverlayEmoji method, on line number 32(SparseArray faces = detector.detect(frame);)
a) Sometimes app remains open without showing anything in logcat.
b) Sometimes app crashed with following error in logcat.
05-24 11:00:27.192 17880-17880/com.aaronapp.hideme E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.aaronapp.hideme, PID: 17880
java.lang.OutOfMemoryError: Failed to allocate a 51916812 byte allocation with 16765168 free bytes and 36MB until OOM
at com.google.android.gms.vision.Frame.zzTM(Unknown Source)
at com.google.android.gms.vision.Frame.getGrayscaleImageData(Unknown Source)
at com.google.android.gms.vision.face.FaceDetector.detect(Unknown Source)
at com.aaronapp.hideme.HideMe.detectFacesandOverlayEmoji(HideMe.java:32)
at com.aaronapp.hideme.MainActivity.processAndSetImage(MainActivity.java:153)
at com.aaronapp.hideme.MainActivity.onActivityResult(MainActivity.java:133)
at android.app.Activity.dispatchActivityResult(Activity.java:6428)
at android.app.ActivityThread.deliverResults(ActivityThread.java:3695)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:3742)
at android.app.ActivityThread.-wrap16(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1393)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

Make use of Picasso, sharing you a working code from my project.
Put this in your App level gradle,
implementation 'com.squareup.picasso:picasso:2.71828'
Code used is given below,
static void shareImage(Context context, String imagePath) {
// Create the share intent and start the share activity
Picasso.with(getApplicationContext())
.load(imagePath)
.into(new Target() {
#Override
public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
Intent i = new Intent(Intent.ACTION_SEND);
i.setType("image/*");
i.putExtra(Intent.EXTRA_STREAM, getLocalBitmapUri(bitmap));
if (!TextUtils.isEmpty(des)) {
i.putExtra(Intent.EXTRA_TEXT, des);
}
startActivity(Intent.createChooser(i, "Share Image"));
}
#Override
public void onBitmapFailed(Drawable errorDrawable) {
}
#Override
public void onPrepareLoad(Drawable placeHolderDrawable) {
}
});
}
public Uri getLocalBitmapUri(Bitmap bmp) {
Uri bmpUri = null;
try {
File file = new File(getExternalFilesDir(Environment.DIRECTORY_PICTURES),
"share_image_" + System.currentTimeMillis() + ".png");
FileOutputStream out = new FileOutputStream(file);
bmp.compress(Bitmap.CompressFormat.PNG, 90, out);
out.close();
bmpUri = Uri.fromFile(file);
} catch (IOException e) {
e.printStackTrace();
}
return bmpUri;
}
Hope it may help you.

Capture Image, Upload To Firebase And Retrieve Java Android Studio

I am very sorry if this may be a question with a simple solution.
What Am I Trying To Do?
Capture an image from a Button
Upload that image to Firebase storage
Retrieve that image in an ImageView
What Is My Trouble So Far?
Takes picture, but crashes when I click the tick.
Hence nothing is being uploaded or being achieved.
My Code
P.N I have looked at lots of other forums and video tutorials but nothing seems to be working. Hopefully someone can help.
public class LeaderboardActivity extends AppCompatActivity {
private static final int CAMERA_REQUEST_CODE = 1;
private static final int REQUEST_TAKE_PHOTO = 1;
private StorageReference mStorage;
private ProgressDialog mProgress;
String mCurrentPhotoPath;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_leaderboard);
mStorage = FirebaseStorage.getInstance().getReference();
final Button bImage = (Button) findViewById(R.id.bCamera);
final ImageView ivPic = (ImageView) findViewById(R.id.ivPic);
mProgress = new ProgressDialog(this);
bImage.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, CAMERA_REQUEST_CODE);
}
});
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == CAMERA_REQUEST_CODE && resultCode == RESULT_OK) {
mProgress.setMessage("Uploading Image");
mProgress.show();
Uri uri = data.getData();
StorageReference filepath = mStorage.child("Photo").child(uri.getLastPathSegment());
filepath.putFile(uri).addOnSuccessListener(new OnSuccessListener < UploadTask.TaskSnapshot > () {
#Override
public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
mProgress.dismiss();
Toast.makeText(LeaderboardActivity.this, "Uploading Complete...", Toast.LENGTH_LONG);
}
});
}
}
private File createImageFile() throws IOException {
// Create an image file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").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();
return image;
}
private void dispatchTakePictureIntent() {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
// Ensure that there's a camera activity to handle the intent
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
// Create the File where the photo should go
File photoFile = null;
try {
photoFile = createImageFile();
} catch (IOException ex) {
// Error occurred while creating the File
}
// Continue only if the File was successfully created
if (photoFile != null) {
Uri photoURI = FileProvider.getUriForFile(this,
"com.example.android.fileprovider",
photoFile);
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);
}
}
}
}
Error In Android Monitor
Not sure if this will help
02-13 02:30:32.693 2133-2133/com.example.rikhi.chores E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.rikhi.chores, PID: 2133
java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1, result=-1, data=Intent { act=inline-data (has extras) }} to activity {com.example.rikhi.chores/com.example.rikhi.chores.LoginRegister.InsideMainActivity.LeaderboardActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.net.Uri.getLastPathSegment()' on a null object reference
at android.app.ActivityThread.deliverResults(ActivityThread.java:4089)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:4132)
at android.app.ActivityThread.-wrap20(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1533)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6119)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.net.Uri.getLastPathSegment()' on a null object reference
at com.example.rikhi.chores.LoginRegister.InsideMainActivity.LeaderboardActivity.onActivityResult(LeaderboardActivity.java:74)
at android.app.Activity.dispatchActivityResult(Activity.java:6932)
at android.app.ActivityThread.deliverResults(ActivityThread.java:4085)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:4132) 
at android.app.ActivityThread.-wrap20(ActivityThread.java) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1533) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:154) 
at android.app.ActivityThread.main(ActivityThread.java:6119) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776) 
I have looked at other people who had the same problem, followed what they said nothing happend, followed the Google Android instructions for this and again same problem.

On button, click remove that intent and just call your
dispatchTakePictureIntetnt() method on Onclick button Listener
Also, check go to your emulator settings, and check your camera
permission is on for your this app and also go to firebase console
and check the rules if, rules are not equal to null made them equal
to null then run your app because !=null rules only work when there
is an authentication method in your app