val fileName = findViewById<EditText>(R.id.editFile)
val fileData = findViewById<EditText>(R.id.editData)
val btnSave = findViewById<Button>(R.id.btnSave)
val btnView = findViewById<Button>(R.id.btnView)
btnSave.setOnClickListener(View.OnClickListener {
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: FileNotFoundException){
e.printStackTrace()
}catch (e: NumberFormatException){
e.printStackTrace()
}catch (e: IOException){
e.printStackTrace()
}catch (e: Exception){
e.printStackTrace()
}
Toast.makeText(applicationContext,"data save",Toast.LENGTH_LONG).show()
fileName.text.clear()
fileData.text.clear()
})
btnView.setOnClickListener(View.OnClickListener {
val filename = fileName.text.toString()
//if(filename.toString()!=null && filename.toString().trim()!=""){
try{
var fileInputStream: FileInputStream? = null
fileInputStream = openFileInput("iiii")
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()
}catch (e: NumberFormatException){
Toast.makeText(applicationContext,"file name cannot be blank",Toast.LENGTH_LONG).show()
}
})
