Set File Permissions when using FileProvider
My app has features to 'Attach File', 'Take Picture', 'Take Video' etc. I was passing a File Uri to a new Intent but am getting the FileUriExposedException in Nougat. Hence have modified the code to use FileProvider. I am getting the Content Uri fine, but I get java.io.FileNotFoundException when I try to read or upload the file/picture/video. Am I setting the permissions wrong? Or do I need to set permissions in another way?
Here is what I am doing:
Android_manifest.xml:
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="${applicationId}.provider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/provider_paths"/>
</provider>
provider_paths.xml:
<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
<files-path name="files" path="."/>
<external-path name="external_files" path="."/>
</paths>
MainActivity.java:
/*
* Creating file uri to store image/video
*/
public Uri getOutputMediaFileUri() {
File mediaStorageDir = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), Config.IMAGE_DIRECTORY_NAME);
if (!mediaStorageDir.exists()) {
try {
mediaStorageDir.mkdirs();
Log.d(TAG, "Created directory " + mediaStorageDir.getPath());
} catch (SecurityException e) {
e.printStackTrace();
}
}
if (mediaStorageDir != null) {
mediaFile = new File(mediaStorageDir.getPath() + File.separator+ "IMG_1" + ".jpg");
try {
Uri photoURI = FileProvider.getUriForFile(MainActivity.this,BuildConfig.APPLICATION_ID + ".provider", mediaFile);
return photoURI;
} catch (IllegalArgumentException e) {
Log.e("File Selector","The selected file can't be shared: " +mediaFile);
}
}
return null;
}
In shouldOverrideUrlLoading (where I am setting up the Intent):
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("*/*");
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION );
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
intent.putExtra(Intent.EXTRA_MIME_TYPES,extraMimeTypes);
intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE,true);
intent.addCategory(Intent.CATEGORY_OPENABLE);
}
try {
startActivityForResult(Intent.createChooser(intent, "Select a File to Upload"),PICKFILE_REQUEST_CODE);
} catch (android.content.ActivityNotFoundException ex) {
Toast.makeText(getApplicationContext(), "Please install a File Explorer.", Toast.LENGTH_SHORT).show();
}
In onActivityResult:
case PICKFILE_REQUEST_CODE:
if (resultCode == RESULT_OK){
Uri selectedFile = data.getData();
try {
filePath = getPath(this,selectedFile);
} catch (URISyntaxException e) {
e.printStackTrace();
}
System.out.println("PICKFILE_REQUEST " + filePath);
if(filePath != null){
new UploadFileToServer().execute();
}else{
Toast.makeText(getApplicationContext(), " Please select from File Explorer or Gallery ", Toast.LENGTH_SHORT).show();
}
}
In the Android Monitor my output shows I/System.out: PICKFILE_REQUEST /storage/32CF-12FE/DCIM/Camera/20170711_161710.jpg which I guess means the content Uri is correct
However, I am unable to upload the file java.io.FileNotFoundException: /storage/32CF-12FE/DCIM/Camera/20170711_161710.jpg: open failed: EACCES (Permission denied)
Does this mean my permissions are not set correctly? How do I correct this.
Your code looks fine, but instead of getting the file URI through FileProvider, use the file's absolute path. Use your mediaFile and get absolute path by mediaFile.getAbsolutePath() .
This will return a string which you can use to read the file.
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