Android sharedPreferences实现记住密码功能

本文实例为大家分享了Android sharedPreferences实现记住密码功能，供大家参考，具体内容如下

编写界面交互代码：

package com.example.bz0209.login;

import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
 private EditText username;
 private EditText password;
 private CheckBox ck;
 private SharedPreferences sharedPreferences;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.activity_main);
   initView();
   sharedPreferences=getSharedPreferences("remeberword",MODE_PRIVATE);
   Boolean isRemeber=sharedPreferences.getBoolean("remeberword",false);
   if(isRemeber) {
     String name=sharedPreferences.getString("name","");
     String pass=sharedPreferences.getString("pass","");
     username.setText(name);
     password.setText(pass);
     ck.setChecked(true);
   }
 }
 private void initView(){
   username=(EditText)findViewById(R.id.username);
   password=(EditText)findViewById(R.id.password);
   ck= (CheckBox) findViewById(R.id.ck);
 }
 private void login(View view){//在layout中设置onClick事件
   String name=username.getText().toString();
   String pass=password.getText().toString();
   if("admin".equals(name)&&"123".equals(pass)){
    SharedPreferences.Editor editor=sharedPreferences.edit();
     if(ck.isChecked()){
       editor.putBoolean("remeberword",true);
       editor.putString("name",name);
       editor.putString("pass",pass);
     }else{
       editor.clear();
     }
     editor.commit();
   }
 }
}