According to the accepted answer in this post, there is no other way at the moment. However, the File IO team is considering changing the the api so that it returns null instead of throwing an exception. Quote from the linked post: Currently the only way to check if a file exists is to catch … Read more
runtime permissions letting user to allow or deny any permission at runtime. use this lib Dexter library.also check an working exmple here Include the library in your build.gradle dependencies{ implementation ‘com.karumi:dexter:4.2.0’ } this example requests WRITE_EXTERNAL_STORAGE. Dexter.withActivity(this) .withPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) .withListener(new PermissionListener() { @Override public void onPermissionGranted(PermissionGrantedResponse response) { // permission is granted, open the camera } … Read more
When you create a new File, you are supposed to provide the file name, not only the directory you want to put your file in. Try with something like File file = new File(“D:/Data/” + item.getFileName());
I don’t know about your Spring/JAXB combination, but the average REST webservice won’t return a response body on POST/PUT, just a response status. You’d like to determine it instead of the body. Replace InputStream response = con.getInputStream(); by int status = con.getResponseCode(); All available status codes and their meaning are available in the HTTP spec, … Read more
You cannot open and read a directory, use the isFile() and isDirectory() methods to distinguish between files and folders. You can get the contents of folders using the list() and listFiles() methods (for filenames and Files respectively) you can also specify a filter that selects a subset of files listed.
Apps targeting Android Q – API 29 by default are given a filtered view into external storage. A quick fix for that is to add this code in the AndroidManifest.xml: <manifest … > <!– This attribute is “false” by default on apps targeting Android Q. –> <application android:requestLegacyExternalStorage=”true” … > … </application> </manifest> Read more … Read more
You can disable asset compression for certain extensions like so: android { aaptOptions { noCompress “pdf” } } Source
Put the word.txt directly as a child of the project root folder and a peer of src Project_Root src word.txt Disclaimer: I’d like to explain why this works for this particular case and why it may not work for others. Why it works: When you use File or any of the other FileXxx variants, you … Read more
There are a number situation where a FileNotFoundException may be thrown at runtime. The named file does not exist. This could be for a number of reasons including: The pathname is simply wrong The pathname looks correct but is actually wrong because it contains non-printing characters (or homoglyphs) that you did not notice The pathname … Read more
Make sure the file exists: use os.listdir() to see the list of files in the current working directory Make sure you’re in the directory you think you’re in with os.getcwd() (if you launch your code from an IDE, you may well be in a different directory) You can then either: Call os.chdir(dir), dir being the … Read more