I would like, as title suggests to find an image via Android File Explorer. I'm taking a photo and saving in on external storage but that part of storage is only available to app itself.
Basically, before I start Camera activity I have following code:
public File getPhotoFile(Contact contact, Context context) {
File externalFilesDir = context.getExternalFilesDir(Environment.DIRECTORY_PICTURES);
if (externalFilesDir == null) {
return null;
}
File f = new File(externalFilesDir, contact.getPhotoFilename());
return f;
}
Method in Contact class getPhotoFilename():
public String getPhotoFilename() {
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
return "IMG_" + this.getId() + "_" + timeStamp + ".jpg";
}
And in activity:
cameraButton.setOnClickListener((View v) -> {
File f = getPhotoFile(newContact, this);
Uri photoURI = FileProvider.getUriForFile(this,
"com.example.email.fileprovider",f);
captureImage.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
startActivityForResult(captureImage, REQUEST_TAKE_PHOTO);
});
I display full path, like this:
Log.i("PATH", filePath); //file path is member variable which just holds f.getAbsoluthPath();
What I get in output is:
/storage/emulated/0/Android/data/com.example.email/files/Pictures/IMG_0_20200428_001544.jpg
I've tried find that image in File Device Explorer, but no luck.
After creating video and save it, I'm trying to make it visible in the gallery app by scanning the video path using the code below :
Path of saved video :
public String getPath() {
String videoFileName = System.currentTimeMillis() + ".mp4";
File storageDir = new File(
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES)
+ "/MyFolderApp");
boolean success = true;
if (!storageDir.exists()) {
success = storageDir.mkdirs();
}
if (success) {
File videoFile = new File(storageDir, videoFileName);
savedVideoPath = videoFile.getAbsolutePath();
}
return savedVideoPath;
}
Scan path :
private void galleryScanner(String path) {
Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
File f = new File(path);
Uri contentUri = Uri.fromFile(f);
mediaScanIntent.setData(contentUri);
sendBroadcast(mediaScanIntent);
}
After saving the video, I call the scan method like this: galleryAddPic(getPath());
Weird behavior : If I open the Google Photos app and go to Album > MyFolderApp, I could see the saved video there, also when I exit the Google Photos app and return to Gallery System, the saved video shown normally
I've found ways that have supposedly worked for people to retrieve the uri/bitmap of the camera taken image.
But when I try and create a bitmap out of the non-null uri that I'm getting the file isn't created and doesn't exist.
this the the function which I use to open the camera intent(Which is copied from stackoverflow):
private void openBackCamera() {
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = timeStamp + ".jpg";
File storageDir = Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_PICTURES);
currentImageBase64 = storageDir.getAbsolutePath() + "/" + imageFileName;
File file = new File(currentImageBase64);
Log.d("2","file 1: " +file.exists());
Uri outputFileUri = FileProvider.getUriForFile(getApplicationContext(),"com.mydomain.fileprovider",file);
currentImageBase64 =outputFileUri+"";
Log.d("2",outputFileUri+" is the uri got from camera");
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);
startActivityForResult(cameraIntent, CAMERA_REQUEST);
}
and this is how I handel my images:
Log.d("2","camera request!"+ currentImageBase64);
File imgFile = new File(currentImageBase64);
if(imgFile.exists()) {
Bitmap myBitmap = BitmapFactory.decodeFile(imgFile.getAbsolutePath());
ivPreview.setImageBitmap(myBitmap);
}else{
Log.d("2","file does not exist");
}
note that the camera request log shows that currentImagesBase64 is not null and has a value "content://com.mydomain.fileprovider/name/Pictures/20190121_173332.jpg"
the file anyway, does not exist.
/**
edit: the problem was insufficent permissions, camera and read&write permissions were requested and the problem was resolved!
**/
Turn out Permissions were the problem, once I gave runtime camera read&write storage permissions the problem was fixed!
I was trying to create a file to save pictures from the camera, it turns out that I can't create the file.
But I really can't find the mistake. Can you have a look at it and give me some advice?
private File createImageFile(){
File imageFile=null;
String stamp=new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
File dir= Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
String imageFileName="JPEG_"+stamp+"_";
try {
imageFile=File.createTempFile(imageFileName,".jpg",dir);
} catch (IOException e) {
Log.d("YJW",e.getMessage());
}
return imageFile;
}
And I have added the permission.
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
The method always gives such mistakes:
open failed: ENOENT (No such file or directory)
The Pictures directory might not exist yet. It's not guaranteed to be there.
In the API documentation for getExternalStoragePublicDirectory(), the code ensures the directory exists using mkdirs:
File path = Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_PICTURES);
File file = new File(path, "DemoPicture.jpg");
try {
// Make sure the Pictures directory exists.
path.mkdirs();
...so it may be as simple as adding that path.mkdirs() to your existing code before you createTempFile.
when a user picks a file from the gallery, there is no guarantee that the file that was picked was added or edited by some other app. So, if the user picks on a file that let’s say belongs to another app we would run into the permission issues. A quick fix for that is to add this code in the AndroidManifest.xml file:
<manifest ... >
<application android:requestLegacyExternalStorage="true" ... >
...
</application>
</manifest>
Note: For Android 11 refer Scope storage Enforcement Policy https://developer.android.com/about/versions/11/privacy/storage
Replace:
Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_PICTURES)
With:
private File createImageFile() throws IOException {
// Create an image file name
make sure you call:
mkdirs() // and not mkdir()
Here's the code that should work for you:
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = "JPEG_" + timeStamp + "_";
File storageDir = new File(Environment.getExternalStorageDirectory().toString(), "whatever_directory_existing_or_not/sub_dir_if_needed/");
storageDir.mkdirs(); // make sure you call mkdirs() and not mkdir()
File image = File.createTempFile(
imageFileName, // prefix
".jpg", // suffix
storageDir // directory
);
// Save a file: path for use with ACTION_VIEW intents
mCurrentPhotoPath = "file:" + image.getAbsolutePath();
Log.e("our file", image.toString());
return image;
}
I had a bad experience following the example given in Android Studio Documentation and I found out that there are many others experiencing the same about this particular topic here in stackoverflow, that is because even if we set
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
the problem persists in some devices.
My experience was that the example worked when I tried it in debug mode, after that 3 more tests it so happened that my SD suddenly was corrupted, but I don't think it has to do with their example (funny). I bought a new SD card and tried it again, only to realize that still both release and debug mode did the same error log: directory does not exist ENOENT. Finally, I had to create the directories myself whick will contain the captured pictures from my phone's camera. And I was right, it works just perfect.
I hope this helps you and others out there searching for answers.
A quick fix for that is to add this code in the AndroidManifest.xml file:
<manifest ... >
<application android:requestLegacyExternalStorage="true" ... >
...
</application>
</manifest>
Note: Applicable for API level 29 or Higher
I used the contentResolver with the URI and it worked for me. Saw it in another SO post which i can't find.
private String getRealPathFromURI(Uri contentURI) {
String result;
Cursor cursor = getContentResolver().query(contentURI, null, null, null, null);
if (cursor == null) {
result = contentURI.getPath();
} else {
cursor.moveToFirst();
int idx = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA);
result = cursor.getString(idx);
cursor.close();
}
return result;
}
hope it helps....
I have solved like this:
public Intent getImageCaptureIntent(File mFile) {
Intent mIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
Uri photoURI = FileProvider.getUriForFile(this, BuildConfig.APPLICATION_ID + ".provider", mFile);
mIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
// The tip is this code below
List<ResolveInfo> resInfoList = getPackageManager().queryIntentActivities(mIntent, PackageManager.MATCH_DEFAULT_ONLY);
for (ResolveInfo resolveInfo : resInfoList) {
String packageName = resolveInfo.activityInfo.packageName;
grantUriPermission(packageName, photoURI, Intent.FLAG_GRANT_WRITE_URI_PERMISSION | Intent.FLAG_GRANT_READ_URI_PERMISSION);
}
return mIntent;
}
If you are using kotlin then use below function.
you have to provide a path for storing image, a Bitmap (in this case a image) and if you want to decrease the quality of the image then provide %age i.e 50%.
fun cacheLocally(localPath: String, bitmap: Bitmap, quality: Int = 100) {
val file = File(localPath)
file.createNewFile()
val ostream = FileOutputStream(file)
bitmap.compress(Bitmap.CompressFormat.JPEG, quality, ostream)
ostream.flush()
ostream.close()
}
hope it will work.
Try this:
private File createImageFile() throws IOException {
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName="JPEG_"+stamp+".jpg";
File photo = new File(Environment.getExternalStorageDirectory(), imageFileName);
return photo;
}
File dirPath = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
File imageFile = new File(dirPath, "YourPicture.jpg");
try {
if(!dirPath.isDirectory()) {
dirPath.mkdirs();
}
imageFile.createNewFile();
} catch(Exception e) {
e.printStackTrace();
}
I got same error while saving Bitmap to External Directory and found a helpful trick
private void save(Bitmap bitmap) {
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.getDefault()).format(new Date());
String imageFileName = timeStamp + ".png";
String path = MediaStore.Images.Media.insertImage(activity.getContentResolver(), bitmap, imageFileName, null);
Uri uriimage = Uri.parse(path);
// you made it, make fun
}
But this have a drawback i.e. you cant change the Directory it always save images to Pictures directory but if you got it fixed fill free to edit my code:
Haa-ha-ha {I can't use emojis with my keyboard}, Good Day
Following are fixes i found
first add these two lines in your AndroidManifest file
Than add the below line just after setContentView method
ActivityCompat.requestPermissions(FullImageActivity.this,
new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},
REQUEST_CODE);
and for saving the images in gallery use the below code
private void SaveImageToGallery() {
BitmapDrawable drawable = (BitmapDrawable) imageView.getDrawable();
Bitmap bitmap = drawable.getBitmap();
FileOutputStream outputStream = null;
File file = Environment.getExternalStorageDirectory();
File dir = new File(file.getAbsolutePath()+"/folderName");
dir.mkdirs();
String filename = String.format("%d.jpg",System.currentTimeMillis());
File outfile = new File(dir,filename);
try{
outputStream = new FileOutputStream(outfile);
bitmap.compress(Bitmap.CompressFormat.JPEG,100,outputStream);
outputStream.flush();
outputStream.close();
}catch(Exception e){
Log.d("SavingError", "SaveImageToGallery: "+e.getMessage());
}
Toast.makeText(this, "Image saved in folderName folder", Toast.LENGTH_SHORT).show();
}
I am adding a photo from the phones camera to a Fragment. I am including the file path to where I would like the pic to get saved in the camera intent(MediaStore.ACTION_IMAGE_CAPTURE).
My problem is that after launching the camera and taking the pic the I am not able to get back to my app. The screen stays in the part where the user gets the option to accept the pic or take another one. The phone doesn't hang or crash and I am able to get back to my app by hitting the back button, but when I get back to the app it is without the pic.
I hope I have made my problem clear, if not let me know and I will try to explain better. I have attached (what I think) are the relevant bits of code.Let me know if you need to see anymore of the code.
Launching the camera intent:
void takePic()
{
if(isExternalStorageWritable() && isExternalStorageReadable())
{
Log.w("Rakshak", "in the take pic");
File file = getPicStoragePath();
Uri uriSavedImage=Uri.fromFile(file);
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, uriSavedImage);
startActivityForResult(intent, CAMERA_IMAGE_ACTIVITY_REQUEST_CODE);
}
}
public File getPicStoragePath() {
Log.w("Rakshak", "in the get pic file");
File root = android.os.Environment.getExternalStorageDirectory();
File dir = new File (root.getAbsolutePath() + File.separator +"YAN");
if(!dir.exists())
dir.mkdirs();
File file = new File(dir,getPicName());
return file;
}
public String getPicName()
{
Log.w("Rakshak", "in the get pic name");
if(title.getText().toString().trim().length() == 0)
{
Log.w("Rakshak", "no title");
Calendar cal=Calendar.getInstance();//get an instance of the calendar
return String.format("%1$te %1$tB %1$tY,%1$tI:%1$tM:%1$tS %1$Tp",cal);// get the data/time when the note was created
}
else
{
return title.getText().toString().trim();
}
}
I have these permissions in the manifest:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
The relavent bits from the onActivityResult:
case CAMERA_IMAGE_ACTIVITY_REQUEST_CODE:
Log.w("Rakshak", "in the camera case");
myBitmap = data.getExtras().getParcelable("data");
photo.setVisibility(View.VISIBLE);
photo.setImageBitmap(myBitmap);
update_pic = true;
return;
There are no error messages in the LogCat. And I could not find anything of note in there.
I get the pic inserted onto the image view just fine if I dont add a file path to the camera intent. It is only when I add the file path that the stays in the "accept pic" bit of the camera.
Your getPicStoragePath() might be the issue. Try something like this:
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 = Environment.getExternalStoragePublicDirectory(
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;
}