FileNamePath.java

import android.content.Context;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Build;
import android.provider.MediaStore;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import timber.log.Timber;

public class FileNamePath {


    private static String readFromFile(Context context, Uri uri, String fileName) {

        try {
            InputStream inputStream = null;
            OutputStream output = null;
            try {
                inputStream = context.getContentResolver().openInputStream(uri);
                File file = new File(context.getCacheDir(), fileName);
                output = new FileOutputStream(file);
                if (inputStream != null) {
                    byte[] buffer = new byte[4 * 1024]; // or other buffer size
                    int read;
                    while ((read = inputStream.read(buffer)) != -1) {
                        output.write(buffer, 0, read);
                    }
                    output.flush();
                    return reduceFileSize(file).getAbsolutePath();
                } else {
                    Timber.e("Error while reading selected image");
                    return null;
                }
            } finally {
                if (output != null) output.close();
                if (inputStream != null) inputStream.close();
            }
        } catch (FileNotFoundException e) {
            return null;
        } catch (IOException e) {
            return null;

        }
    }


    public static String getFilePathFromContentUri(Context context, Uri selectedVideoUri) {
        String fileName;
        if (Build.VERSION.SDK_INT < 29) {
            String[] filePathColumn = {MediaStore.MediaColumns.DATA};
            Cursor cursor = context.getContentResolver().query(selectedVideoUri, filePathColumn, null, null, null);
            cursor.moveToFirst();
            int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
            fileName = getName(cursor.getString(columnIndex));
            cursor.close();
        } else {
            String[] filePathColumn = {MediaStore.MediaColumns.DISPLAY_NAME};
            Cursor cursor = context.getContentResolver().query(selectedVideoUri, filePathColumn, null, null, null);
            cursor.moveToFirst();
            fileName = cursor.getString(cursor.getColumnIndex(filePathColumn[0]));
            cursor.close();
        }
        return readFromFile(context, selectedVideoUri, fileName);
    }

    public static String getName(String filename) {
        if (filename == null) {
            return null;
        }
        int index = filename.lastIndexOf('/');
        return filename.substring(index + 1);
    }


    public static File reduceFileSize(File file) {
        try {

            BitmapFactory.Options o = new BitmapFactory.Options();
            o.inJustDecodeBounds = true;
            o.inSampleSize = 6;
            FileInputStream inputStream = new FileInputStream(file);
            BitmapFactory.decodeStream(inputStream, null, o);
            inputStream.close();

            final int REQUIRED_SIZE = 75;

            int scale = 1;
            while (o.outWidth / scale / 2 >= REQUIRED_SIZE && o.outHeight / scale / 2 >= REQUIRED_SIZE) {
                scale *= 2;
            }

            BitmapFactory.Options o2 = new BitmapFactory.Options();
            o2.inSampleSize = scale;
            inputStream = new FileInputStream(file);

            Bitmap selectedBitmap = BitmapFactory.decodeStream(inputStream, null, o2);
            inputStream.close();
            file.createNewFile();
            FileOutputStream outputStream = new FileOutputStream(file);
            selectedBitmap.compress(Bitmap.CompressFormat.JPEG, 100, outputStream);
            return file;

        } catch (Exception e) {
            return null;
        }
    }

}