PDA/app/src/main/res/values/strings.xml

<resources>
    <string name="app_name">PDA</string>
    <string name="login_title">登录</string>
    <string name="username_label">用户名</string>
    <string name="password_label">密码</string>
    <string name="login_button">登录</string>
</resources>