Android Create Temp File In Cache Directory (Kotlin)

Apr 13, 2018

Create a file in cache directory

// create file in cache directoryval outputFile = File(context.cacheDir, "output.txt")

Create a file in cache directory including date & time in filename.

val timestamp ="yyyyMMdd-kkmmss"))val outputFile = File(context.cacheDir, "output-${timestamp}.txt")

Create a temp file in cache directory.

val timestamp ="yyyyMMdd-kkmmss"))val outputFile = File.createTempFile(timestamp, null, context.cacheDir);

You might want to delete output file if already exist and create the necessary directory before usage.

if (outputFile.exists()) {    outputFile.delete()}else {    outputFile.parentFile?.mkdirs()}

Write single large string output to file.

val input = "I am String"val inputStream = ByteArrayInputStream(input.toByteArray(UTF_8))val outputStream = FileOutputStream(outputFile)// the following should work as well // val outputStream = outputFile.outputStream()inputStream.use { input ->    outputStream.use { output ->        input.copyTo(output)    }}

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