CODEWITHSUNDEEP
androidfileresourcessize
Alex1987
Alex1987

Reputation: 9457

Get the size of an Android file resource?

I have a video file in the raw folder in my resources. I want to find the size of the file. I have this piece of code:

Uri filePath = Uri.parse("android.resource://com.android.FileTransfer/" + R.raw.video);
                File videoFile = new File(filePath.getPath());
                Log.v("LOG", "FILE SIZE "+videoFile.length());

But it always gives me that the size is 0. What am I doing wrong?

Upvotes: 25

Views: 19391

Answers (5)

Gibolt
Gibolt

Reputation: 47069

Reuseable Kotlin Extensions

You can call these on a context or activity. They are exception safe

fun Context.assetSize(resourceId: Int): Long =
    try {
        resources.openRawResourceFd(resourceId).length
    } catch (e: Resources.NotFoundException) {
        0
    }

This one is not as good as the first, but may be required in certain cases

fun Context.assetSize(resourceUri: Uri): Long {
    try {
        val descriptor = contentResolver.openAssetFileDescriptor(resourceUri, "r")
        val size = descriptor?.length ?: return 0
        descriptor.close()
        return size
    } catch (e: Resources.NotFoundException) {
        return 0
    }
}

If you'd like a simple way to get a different byte representation, you can use these

val Long.asKb get() = this.toFloat() / 1024
val Long.asMb get() = asKb / 1024
val Long.asGb get() = asMb / 1024

Upvotes: 2

olfek
olfek

Reputation: 3520

Slight variation to the answer by @shem

AssetFileDescriptor afd = contentResolver.openAssetFileDescriptor(fileUri,"r");
long fileSize = afd.getLength();
afd.close();

Where fileUri is of type Android Uri

Upvotes: 10

EboMike
EboMike

Reputation: 77722

You can't use File for resources. Use Resources or AssetManager to get an InputStream to the resource, then call the available() method on it.

Like this:

InputStream is = context.getResources().openRawResource(R.raw.nameOfFile);
int sizeOfInputStram = is.available(); // Get the size of the stream

Upvotes: 16

shem
shem

Reputation: 4712

Try this:

AssetFileDescriptor sampleFD = getResources().openRawResourceFd(R.raw.video);
long size = sampleFD.getLength()

Upvotes: 24

Aleadam
Aleadam

Reputation: 40381

Try this lines:

InputStream ins = context.getResources().openRawResource (R.raw.video)
int videoSize = ins.available();

Upvotes: 24

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