Android 记住密码功能

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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>

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