Question

I keep getting a file not found error, even though it exists at /mnt/sdcard/folder/Samples.zip. I downloaded the file there, so there are “write” permissions, but it just doesn’t want to unzip! Why is this?

        ZipInputStream in = null;

        try {

            final String zipPath = "/folder/Samples.zip";

            in = new ZipInputStream(getAssets().open(
                    Environment.getExternalStorageDirectory() + zipPath));

            for (ZipEntry entry = in.getNextEntry(); entry != null; entry = in

            .getNextEntry()) {

            }

        } catch (IOException e) {

            System.out.println("file error of some kind" + e);

        } finally {

            try {

                if (in != null) {

                    in.close();

                }

            } catch (IOException ignored) {

            }

            in = null;
        }

Answer 1

Try replacing

in = new ZipInputStream(getAssets().open(
  Environment.getExternalStorageDirectory() + zipPath));

with

in = new ZipInputStream(new FileInputStream(
  Environment.getExternalStorageDirectory() + zipPath));

Context.getAssets() returns an AssetManager, which is normally used to access files in your project’s /assets folder, not external files.

(Also, if you have your phone connected to your PC with a USB cable, it might not be allowing access to your SD Card. Try unplugging from USB when you run your app. Might just be an issue with my phone, though.)