Essential Android Intent edit forum

Showing a File Chooser and Reading the Result

Starting a File Chooser Activity

public void showFileChooser() {
    Intent intent = new Intent(Intent.ACTION_GET_CONTENT);

    // Update with mime types

    // Update with additional mime types here using a String[]. 
    intent.putExtra(Intent.EXTRA_MIME_TYPES, mimeTypes);

    // Only pick openable and local files. Theoretically we could pull files from google drive
    // or other applications that have networked files, but that's unnecessary for this example.
    intent.putExtra(Intent.EXTRA_LOCAL_ONLY, true);

    // REQUEST_CODE = <some-integer>
    startActivityForResult(intent, REQUEST_CODE);

Reading the Result

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    // If the user doesn't pick a file just return
    if (requestCode != REQUEST_CODE || resultCode != RESULT_OK) {

    // Import the file

public void importFile(Uri uri) {
    String fileName = getFileName(uri);

    // The temp file could be whatever you want
    File fileCopy = copyToTempFile(uri, File tempFile)

    // Done!

 * Obtains the file name for a URI using content resolvers. Taken from the following link
 * @param uri a uri to query
 * @return the file name with no path
 * @throws IllegalArgumentException if the query is null, empty, or the column doesn't exist
private String getFileName(Uri uri) throws IllegalArgumentException {
    // Obtain a cursor with information regarding this uri
    Cursor cursor = getContentResolver().query(uri, null, null, null, null);

    if (cursor.getCount() <= 0) {
        throw new IllegalArgumentException("Can't obtain file name, cursor is empty");


    String fileName = cursor.getString(cursor.getColumnIndexOrThrow(OpenableColumns.DISPLAY_NAME));


    return fileName;

 * Copies a uri reference to a temporary file
 * @param uri      the uri used as the input stream
 * @param tempFile the file used as an output stream
 * @return the input tempFile for convenience
 * @throws IOException if an error occurs
private File copyToTempFile(Uri uri, File tempFile) throws IOException {
    // Obtain an input stream from the uri
    InputStream inputStream = getContentResolver().openInputStream(uri);

    if (inputStream == null) {
        throw new IOException("Unable to obtain input stream from URI");

    // Copy the stream to the temp file
    FileUtils.copyInputStreamToFile(inputStream, tempFile);

    return tempFile;

Table Of Contents
6 Intent
64 Menu
112 Loader
119 Xposed
132 Colors
135 Fresco
140 AdMob
147 Button
156 Vk SDK
170 XMPP
176 OpenCV
200 FileIO
203 Moshi
217 Paint
231 AIDL
241 JCodec
243 Okio
255 Looper
  ↑ ↓ to navigate     ↵ to select     Esc to close