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hmuskan/MainActivity.java Secret

Last active May 21, 2020
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package com.example.muskanhussain.honeydolist;
import android.content.Context;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
public class MainActivity extends AppCompatActivity {
private EditText todoText;
private Button saveButton;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
todoText = findViewById(R.id.todoText);
saveButton = findViewById(R.id.saveButton);
saveButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if(!todoText.getText().toString().equals(""))
{
String message = todoText.getText().toString();
writeToFile(message);
Toast.makeText(MainActivity.this, "Saved!", Toast.LENGTH_LONG).show();
}
}
});
try {
if(readFromFile() != null)
{
todoText.setText(readFromFile());
}
} catch (IOException e) {
e.printStackTrace();
}
}
private void writeToFile(String message)
{
try {
OutputStreamWriter outputStreamWriter = new OutputStreamWriter(openFileOutput("todolist.txt",
Context.MODE_PRIVATE));
outputStreamWriter.write(message);
outputStreamWriter.close();
} catch(FileNotFoundException e)
{
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
private String readFromFile() throws IOException {
String result = "";
InputStream inputStream = openFileInput("todolist.txt");
if(inputStream != null)
{
InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
String temp = "";
StringBuilder stringBuilder = new StringBuilder();
while((temp = bufferedReader.readLine()) != null)
{
stringBuilder.append(temp);
stringBuilder.append("\n");
}
inputStream.close();
result = stringBuilder.toString();
}
return result;
}
}
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