Java tutorial
//package com.java2s; import android.content.Context; import android.database.Cursor; import android.net.Uri; import android.provider.MediaStore; import java.io.File; public class Main { /** * Return file size from Uri * * @param uri file URI * @return return file size */ public static long getFileSizeFromUri(Context context, Uri uri) { long size = 0; if (uri.getScheme().toString().compareTo("content") == 0) { Cursor cursor = null; try { cursor = context.getApplicationContext().getContentResolver().query(uri, null, null, null, null); if (cursor != null && cursor.moveToFirst()) { final int column_index = cursor.getColumnIndexOrThrow(MediaStore.MediaColumns.SIZE); size = cursor.getInt(column_index); } } finally { if (cursor != null) { cursor.close(); } } } else if (uri.getScheme().toString().compareTo("file") == 0) { final File file = new File(uri.getPath()); size = file.length(); } return size; } }