test.kt

/* AWS S3 の使い方 */
    public fun testAWS() {
        val accessKey = myActivity?.getString(R.string.aws_access_key)
        val secretKey = myActivity?.getString(R.string.aws_secret_key)
        val bucketName = "doya"
        val s3Client = AmazonS3Client( BasicAWSCredentials(accessKey, secretKey) )
        s3Client.setRegion(Region.getRegion(Regions.AP_NORTHEAST_1))
        val buckets = s3Client.listBuckets()
        assertNotNull(buckets)
        assertTrue( buckets!!.size > 0 )

        // upload
        val fileName = "piyo.txt"
        val path = myActivity?.getFilesDir()
        val stream = myActivity?.openFileOutput(fileName, 0)
        stream?.write("hello, aws".toByteArray())
        stream?.close()

        val file = File(path,fileName)
        val por = PutObjectRequest("doya",fileName,file)
        s3Client.putObject(por)
    }