How can I delete an image file using my app?
File file = new File("path"); //PATH is: /storage/sdcard0/DCIM/Camera/IMG_20160913_165933.jpg
file.delete(); // try this one but not delete file....boolean isDelete = file.delete(); //this also not delete...context.deleteFile(file); // thisn one also not working in my example....
If you are trying to delete a picture or similar you may have issues. It may return to you that the result is true but the file still will exist. I have lost so much time and what best worked for me was:
private void deleteImage(File file) {
// Set up the projection (we only need the ID)
String[] projection = {MediaStore.Images.Media._ID};
// Match on the file path
String selection = MediaStore.Images.Media.DATA + " = ?";
String[] selectionArgs = new String[]{file.getAbsolutePath()};
// Query for the ID of the media matching the file path
Uri queryUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
ContentResolver contentResolver = getContentResolver();
Cursor c = contentResolver.query(queryUri, projection, selection, selectionArgs, null);
if (c.moveToFirst()) {
// We found the ID. Deleting the item via the content provider will also remove the file
long id = c.getLong(c.getColumnIndexOrThrow(MediaStore.Images.Media._ID));
Uri deleteUri = ContentUris.withAppendedId(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, id);
contentResolver.delete(deleteUri, null, null);
} else {
// File not found in media store DB
}
c.close();
}
try this working code
File target = new File(path);
Log.d(" target_path", "" + path);
if (target.exists() && target.isFile() && target.canWrite()) {
target.delete();
Log.d("d_file", "" + target.getName());
}
Add AndroidManifest.xml
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
This post help me so mutch, I was searching how to delete all the pictures from the gallery and I finally found it.
In my case I wanted to delete all the photos in one click and this method works.
My code :
private void deletePictures(){
String[] projection = {MediaStore.Images.Media._ID};
Cursor cursor = getContext().getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, projection, null,null, null);
while (cursor.moveToNext()) {
long id = cursor.getLong(cursor.getColumnIndexOrThrow(MediaStore.Images.Media._ID));
Uri deleteUri = ContentUris.withAppendedId(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, id);
getContext().getContentResolver().delete(deleteUri, null, null);
}
cursor.close();
}
I tested on Android 10 and it's working.
Check file.isExist() then delete and also check permission in AndroidManifest.xml file.
Try this..
permission add to mainfiest also
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
for marashmallow runtime permission add
private static final int REQUEST_RUNTIME_PERMISSION = 123;
if (CheckPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
// you have permission go ahead
File file = new File("path");
if(file.exists())
{
file.delete();
}
} else {
// you do not have permission go request runtime permissions
RequestPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE, REQUEST_RUNTIME_PERMISSION);
}
@Override
public void onRequestPermissionsResult(int permsRequestCode, String[] permissions, int[] grantResults) {
switch (permsRequestCode) {
case REQUEST_RUNTIME_PERMISSION: {
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
} else {
// you do not have permission show toast.
}
return;
}
}
}
public void RequestPermission(Activity thisActivity, String Permission, int Code) {
if (ContextCompat.checkSelfPermission(thisActivity,
Permission)
!= PackageManager.PERMISSION_GRANTED) {
if (ActivityCompat.shouldShowRequestPermissionRationale(thisActivity,
Permission)) {
} else {
ActivityCompat.requestPermissions(thisActivity,
new String[]{Permission},
Code);
}
}
}
public boolean CheckPermission(Activity context, String Permission) {
if (ContextCompat.checkSelfPermission(context,
Permission) == PackageManager.PERMISSION_GRANTED) {
return true;
} else {
return false;
}
}
//PATH is: /storage/sdcard0/DCIM/Camera/IMG_20160913_165933.jpg
That would appear to be on removable storage. On Android 4.4+ devices, you do not have the ability to read, write, or delete files in arbitrary locations on removable storage.
