Android 记住密码功能

LoginActivity.java

package com.wangdeqiang.www.chatwithrobot.BroadcastBestPractice;

import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.Toast;

import com.wangdeqiang.www.chatwithrobot.R;

import static com.wangdeqiang.www.chatwithrobot.R.id.account;

/**
 * @author
 */

public class LoginActivity extends BaseActivity {
    private SharedPreferences pref;

    private  SharedPreferences.Editor editor;

    private EditText accountEdit;

    private EditText passwordEdit;

    private Button login;

    private CheckBox rememberPass;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);
        pref = PreferenceManager.getDefaultSharedPreferences(this);
        accountEdit = (EditText) findViewById(account);
        passwordEdit = (EditText) findViewById(R.id.password);
        rememberPass = (CheckBox) findViewById(R.id.remember_pass);
        login = (Button) findViewById(R.id.login);
        boolean isRemeber = pref.getBoolean("remember_password",false);
        if(isRemeber) {
            //将账号和密码都设置到文本框中
            String account = pref.getString("account","");
            String password = pref.getString("password","");
            accountEdit.setText(account);
            passwordEdit.setText(password);
            rememberPass.setChecked(true);
        }
        login.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String account = pref.getString("account", "").toString();
                String password = pref.getString("password", "").toString();
                //如果账号和密码是admin和123456,就认为登陆成功
                if (account.equals("admin") && password.equals("123456")) {
                    editor = pref.edit();
                    if (rememberPass.isChecked()) {
                        editor.putBoolean("remember", false);
                        editor.putString("account", account);
                        editor.putString("password", password);
                    } else {
                        editor.apply();
                    }
                    editor.commit();
                    Intent intent = new Intent(LoginActivity.this, Main3Activity.class);
                    startActivity(intent);
                    finish();
                } else {
                    Toast.makeText(LoginActivity.this, "密码或者账号错误", Toast.LENGTH_SHORT).show();
                }
            }
        });




        }
     }

activity_login.xml

<?xml version="1.0" encoding="utf-8"?>

<TableLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:stretchColumns="1"
   >
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="60dp"
            android:orientation="horizontal">

            <TextView
                android:layout_width="90dp"
                android:layout_height="wrap_content"
                android:layout_gravity="center_vertical"
                android:text="Account:"
                android:textSize="18sp" />

            <EditText
                android:id="@+id/account"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_gravity="center_vertical"
                android:layout_weight="1" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="60dp"
            android:orientation="horizontal">

            <TextView
                android:layout_width="90dp"
                android:layout_height="wrap_content"
                android:layout_gravity="center_vertical"
                android:text="Password"
                android:textSize="18sp" />

            <EditText
                android:id="@+id/password"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_gravity="center_vertical"
                android:layout_weight="1"
                android:inputType="textPassword" />
        </LinearLayout>
    </LinearLayout>
    <TableRow>
        <CheckBox
            android:id="@+id/remember_pass"
            android:layout_height="wrap_content"
            />
        <TextView
            android:layout_height="wrap_content"
            android:text="Remeber password"
            />
    </TableRow>
    <Button
        android:id="@+id/login"
        android:layout_height="wrap_content"
        android:layout_span="2"
        android:text="Login"
        />
</TableLayout>