Android开发(6)--完成登陆界面的数据保存回显的操作

LoginActivity.java

[java]
package com.example.login;

import java.util.Map;

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.widget.EditText;
import android.widget.Toast;

import com.example.login.service.FileService;

public class LoginActivityextends Activity {

public EditText edit_name,edit_pass;
public Button btn_login;
public CheckBox box_remeber;

public FileService fileService;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
fileService=new FileService(this);

edit_name=(EditText) findViewById(R.id.edit_name);
edit_pass=(EditText) findViewById(R.id.edit_pass);
btn_login=(Button) findViewById(R.id.btn_login);
box_remeber=(CheckBox) findViewById(R.id.cbx_remember);

btn_login.setOnClickListener(new MyOnClickListener());

Map<String, String> map=fileService.readFile("private.txt");
if(map!=null){
edit_name.setText(map.get("name"));
edit_pass.setText(map.get("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;
}

class MyOnClickListenerimplements View.OnClickListener{

@Override
public void onClick(View v) {
int id=v.getId();
switch (id) {
case R.id.btn_login:
String name=edit_name.getText().toString();
String pass=edit_pass.getText().toString();
if(TextUtils.isEmpty(name)){
Toast.makeText(LoginActivity.this,"用户名不能为空", Toast.LENGTH_SHORT).show();
return;
}else if(TextUtils.isEmpty(pass)){
Toast.makeText(LoginActivity.this,"密码不能为空", Toast.LENGTH_SHORT).show();
return;
}else{
if(box_remeber.isChecked()){
LoginActivity.this.fileService.saveToRom(name, pass,"private.txt");
Toast.makeText(LoginActivity.this,"用户名和密码已保存", Toast.LENGTH_SHORT).show();
}else{
Toast.makeText(LoginActivity.this,"用户名和密码不需要保存", Toast.LENGTH_SHORT).show();
}
}
break;

default:
break;
}

/*if(id==btn_login.getId()){
String name=edit_name.getText().toString();
String pass=edit_pass.getText().toString();
if(TextUtils.isEmpty(name)){
Toast.makeText(LoginActivity.this, "用户名不能为空", Toast.LENGTH_SHORT).show();
return;
}else if(TextUtils.isEmpty(pass)){
Toast.makeText(LoginActivity.this, "密码不能为空", Toast.LENGTH_SHORT).show();
return;
}else{
if(box_remeber.isChecked()){
LoginActivity.this.fileService.saveToRom(name, pass, "private.txt");
Toast.makeText(LoginActivity.this, "用户名和密码已保存", Toast.LENGTH_SHORT).show();
}else{
Toast.makeText(LoginActivity.this, "用户名和密码不需要保存", Toast.LENGTH_SHORT).show();
}
}
}*/
}

}
}
[java]
package com.example.login; 
 
import java.util.Map; 
 
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.widget.EditText; 
import android.widget.Toast; 
 
import com.example.login.service.FileService; 
 
public class LoginActivity extends Activity { 
 
    public EditText edit_name,edit_pass; 
    public Button btn_login; 
    public CheckBox box_remeber; 
     
    public FileService fileService; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
        super.onCreate(savedInstanceState); 
        setContentView(R.layout.activity_login); 
        fileService=new FileService(this); 
         
        edit_name=(EditText) findViewById(R.id.edit_name); 
        edit_pass=(EditText) findViewById(R.id.edit_pass); 
        btn_login=(Button) findViewById(R.id.btn_login); 
        box_remeber=(CheckBox) findViewById(R.id.cbx_remember); 
         
        btn_login.setOnClickListener(new MyOnClickListener()); 
         
        Map<String, String> map=fileService.readFile("private.txt"); 
        if(map!=null){ 
            edit_name.setText(map.get("name")); 
            edit_pass.setText(map.get("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; 
    } 
 
    class MyOnClickListener implements View.OnClickListener{ 
 
        @Override 
        public void onClick(View v) { 
            int id=v.getId(); 
            switch (id) { 
            case R.id.btn_login: 
                String name=edit_name.getText().toString(); 
                String pass=edit_pass.getText().toString(); 
                if(TextUtils.isEmpty(name)){ 
                    Toast.makeText(LoginActivity.this, "用户名不能为空", Toast.LENGTH_SHORT).show(); 
                    return; 
                }else if(TextUtils.isEmpty(pass)){ 
 

补充：移动开发 , Android ,

上一个：Android开发（7）--Android中的SAX解析XML文件
下一个：Android开发（5）--对应用进行单元测试