public class MainActivity extends AppCompatActivity {
private EditText edit;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
edit=(EditText)findViewById(R.id.edit);
}
protected void onDestroy(){
super.onDestroy();
String inputText=edit.getText().toString();
save(inputText);
}
public void save(String inputText){
FileOutputStream out=null;
BufferedWriter writer=null;
try{
out=openFileOutput("data", Context.MODE_PRIVATE);
writer=new BufferedWriter(new OutputStreamWriter(out));
writer.write(inputText);
}catch (IOException e){
e.printStackTrace();
}finally {
try{
if(writer!=null){
writer.close();
}
}catch (IOException e){
e.printStackTrace();
}
}
}
}