File read and write

Write

val file:String = fileName.text.toString()
val data:String = fileData.text.toString()
val fileOutputStream:FileOutputStream
try {
fileOutputStream = openFileOutput(file, Context.MODE_PRIVATE)
fileOutputStream.write(data.toByteArray())
}catch (e: Exception){
		e.printStackTrace()
	}

 

Read

var fileInputStream: FileInputStream? = null 
fileInputStream = openFileInput(filename)
var inputStreamReader: InputStreamReader = InputStreamReader(fileInputStream)
val bufferedReader: BufferedReader = BufferedReader(inputStreamReader)
val stringBuilder: StringBuilder = StringBuilder()
var text: String? = null
	while ({ text = bufferedReader.readLine(); text }() != null) {
	stringBuilder.append(text)
	}
//Displaying data on EditText
fileData.setText(stringBuilder.toString()).toString()