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1、JAVA登陆界面的数据保存回显的操作 java package com.example.day02_file; import java.util.Map; import com.example.lession02_file.service.FileService; import android.app.Activity; import android.os.Bundle; import android.text.TextUtils; import android.view.Menu; import android.view.View; import android.widget.Button;
2、 import android.widget.CheckBox; import android.widget.EditText; import android.widget.Toast; public class LoginActivity extends Activity public static FileService fileService = null; / 声明获取得用户与密码的组件 public EditText edit_name, edit_pass; / 声明登陆按钮对象 public Button btn_login; / 声明CheckBox组件对象 public Ch
3、eckBox box_remember; Override protected void onCreate(Bundle savedInstanceState) super.onCreate(savedInstanceState); / 设置显示视图 setContentView(R.layout.activity_login); / 实例化业务对象 fileService = new FileService(this); edit_name = (EditText) findViewById(R.id.edit_name); edit_pass = (EditText) findViewBy
4、Id(R.id.edit_pass); btn_login = (Button) findViewById(R.id.btn_login); box_remember = (CheckBox) findViewById(R.id.file_Chickbox); btn_login.setOnClickListener(new MyOnClickListener(); / 回显数据 Map map = fileService.readFile(private.txt); if (map != null) edit_name.setText(map.get(edit_name); edit_pas
5、s.setText(map.get(edit_pass); Override public boolean onCreateOptionsMenu(Menu menu) / Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.login, menu); return true; / 内部类 class MyOnClickListener implements View.OnClickListener Override public void
6、onClick(View v) int id = v.getId(); if (id = btn_login.getId() String name = edit_name.getText().toString(); String pass = edit_pass.getText().toString(); if (TextUtils.isEmpty(name) | TextUtils.isEmpty(pass) Toast.makeText(LoginActivity.this, 用户名或密码不能为空, Toast.LENGTH_LONG).show(); return; else / 如果
7、记住密码勾选上了 if (box_remember.isChecked() / 进行保存 / 调用业务对象的业务方法 LoginActivity.this.fileService.saveToRom(name, pass, private.txt); Toast.makeText(LoginActivity.this, 用户名和密码需要保存, Toast.LENGTH_LONG).show(); else / 不保存 Toast.makeText(LoginActivity.this, 用户名和密码不需要保存, Toast.LENGTH_LONG).show(); package com.ex
8、ample.day02_file;import java.util.Map;import com.example.lession02_file.service.FileService;import android.app.Activity;import android.os.Bundle;import android.text.TextUtils;import android.view.Menu;import android.view.View;import android.widget.Button;import android.widget.CheckBox;import android.
9、widget.EditText;import android.widget.Toast;public class LoginActivity extends Activity public static FileService fileService = null; / 声明获取得用户与密码的组件 public EditText edit_name, edit_pass; / 声明登陆按钮对象 public Button btn_login; / 声明CheckBox组件对象 public CheckBox box_remember; Override protected void onCre
10、ate(Bundle savedInstanceState) super.onCreate(savedInstanceState); / 设置显示视图 setContentView(R.layout.activity_login); / 实例化业务对象 fileService = new FileService(this); edit_name = (EditText) findViewById(R.id.edit_name); edit_pass = (EditText) findViewById(R.id.edit_pass); btn_login = (Button) findViewB
11、yId(R.id.btn_login); box_remember = (CheckBox) findViewById(R.id.file_Chickbox); btn_login.setOnClickListener(new MyOnClickListener(); / 回显数据 Map map = fileService.readFile(private.txt); if (map != null) edit_name.setText(map.get(edit_name); edit_pass.setText(map.get(edit_pass); Override public bool
12、ean onCreateOptionsMenu(Menu menu) / Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.login, menu); return true; / 内部类 class MyOnClickListener implements View.OnClickListener Override public void onClick(View v) int id = v.getId(); if (id = btn_login.getId() String name = edit_name.getText().toString(); String pass = edit_pass.getText().toString(); if (Te
