RammusXu

<h1 class="text-center">新增討論版</h1>

<div class="col-md-4 col-md-offset-4">

	<hr>
	<%= simple_form_for @group do |f| %>
	<div class="form-group">
		<%= f.input :title, input_html: {class: "form_controll"} %>
		<%= f.input :description, input_html: {class: "form_controll"} %>
	</div>

RammusXu

package com.example.myfunction;

import android.app.AlertDialog;
import android.content.Context;
import android.content.SharedPreferences;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;

RammusXu

public void writeFile(String dir, String filename, String string) {
		FileWriter fw;
		try {
			File f = new File(dir, filename);
			if (!f.exists()) {
				f.createNewFile();
			}
			fw = new FileWriter(f, true);
			fw.append(string);
			fw.close();

RammusXu

private void writeObject(File file, Object object) {

		try {
			FileOutputStream fos = new FileOutputStream(file);
			ObjectOutputStream oos = new ObjectOutputStream(fos);
			oos.writeObject(object);
			oos.close();
		} catch (Exception e) {
			e.printStackTrace();
		}