OneMapQS/app/src/main/res/layout/activity_login.xml

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    tools:context=".ui.activity.login.LoginActivity">

    <data>

        <variable
            name="activity"
            type="com.navinfo.omqs.ui.activity.login.LoginActivity" />

        <variable
            name="loginUserModel"
            type="com.navinfo.omqs.ui.activity.login.LoginViewModel" />
    </data>

    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@mipmap/login_bg">

        <androidx.constraintlayout.widget.ConstraintLayout
            android:layout_width="0dp"
            android:layout_height="match_parent"
            app:layout_constraintWidth_percent="0.5"
            app:layout_constraintLeft_toLeftOf="parent">
            <ImageView
                android:id="@+id/login_fragment_logo"
                android:layout_width="100dp"
                android:layout_height="100dp"
                android:contentDescription="@string/imagedescription"
                android:scaleType="fitXY"
                android:src="@mipmap/logo"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent"
                app:layout_constraintVertical_bias="0.4"
                app:layout_constraintHorizontal_bias="0.4"
                app:roundPercent="0.2" />
        </androidx.constraintlayout.widget.ConstraintLayout>
        <androidx.constraintlayout.widget.ConstraintLayout
            android:layout_width="0dp"
            android:layout_height="match_parent"
            app:layout_constraintWidth_percent="0.5"
            app:layout_constraintRight_toRightOf="parent">
            <androidx.cardview.widget.CardView
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent"
                app:cardCornerRadius="8dp"
                app:cardElevation="2dp"
                app:layout_constraintWidth_percent="0.7"
                app:cardUseCompatPadding="true">
                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:paddingHorizontal="@dimen/activity_horizontal_margin"
                    android:paddingVertical="@dimen/activity_vertical_margin"
                    android:orientation="vertical">
                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        style="@style/title_default_style"
                        android:background="@color/transparent"
                        android:gravity="center"
                        android:textStyle="bold"
                        android:text="Login to OneMap QE"
                        android:layout_marginVertical="@dimen/activity_vertical_margin"></TextView>

                    <com.google.android.material.textfield.TextInputLayout
                        android:id="@+id/login_fragment_user_layout"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        app:startIconDrawable="@mipmap/login_username"
                        app:startIconTint="@color/colorSecondary"
                        android:scrollbarAlwaysDrawHorizontalTrack="true"
                        app:layout_constraintBottom_toBottomOf="parent"
                        app:layout_constraintLeft_toLeftOf="parent"
                        app:layout_constraintRight_toRightOf="parent"
                        app:layout_constraintTop_toTopOf="parent"
                        app:layout_constraintVertical_bias="0.4">

                        <com.google.android.material.textfield.TextInputEditText
                            android:id="@+id/login_username"
                            android:layout_width="match_parent"
                            android:layout_height="wrap_content"
                            android:hint="@string/input_user_name"
                            android:lines="1"
                            android:background="@drawable/login_inputlayout_bg"
                            android:text="@{loginUserModel.loginUser.username}"
                            tools:ignore="TouchTargetSizeCheck" />
                    </com.google.android.material.textfield.TextInputLayout>

                    <com.google.android.material.textfield.TextInputLayout
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        app:startIconDrawable="@mipmap/login_password"
                        app:layout_constraintLeft_toLeftOf="parent"
                        app:layout_constraintRight_toRightOf="parent"
                        app:startIconTint="@color/colorSecondary"
                        app:layout_constraintTop_toBottomOf="@id/login_fragment_user_layout">

                        <com.google.android.material.textfield.TextInputEditText
                            android:id="@+id/login_password"
                            android:layout_width="match_parent"
                            android:layout_height="wrap_content"
                            android:hint="@string/input_password"
                            android:lines="1"
                            android:inputType="textPassword"
                            android:background="@drawable/login_inputlayout_bg"
                            android:text="@{loginUserModel.loginUser.password}"
                            tools:ignore="TouchTargetSizeCheck" />
                    </com.google.android.material.textfield.TextInputLayout>

                    <TextView
                        android:id="@+id/tv_login_forget_passwd"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:gravity="right"
                        android:text="忘记密码?"
                        android:textColor="@color/colorSecondary"
                        android:padding="@dimen/default_widget_padding"
                        android:layout_marginTop="@dimen/fab_margin"></TextView>

                    <androidx.appcompat.widget.AppCompatButton
                        android:id="@+id/login_activity_login_button"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:onClick="@{()->activity.onClickLoginButton()}"
                        android:text="@string/login"
                        app:cornerRadius="30dp"
                        style="@style/btn_gradient_color" />
                </LinearLayout>
            </androidx.cardview.widget.CardView>
        </androidx.constraintlayout.widget.ConstraintLayout>

        <com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton
            android:id="@+id/login_fragment_register_button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:onClick="@{(view)->loginUserModel.onClick(view)}"
            android:paddingLeft="10dp"
            android:paddingRight="10dp"
            android:text="@string/logon"
            android:visibility="gone"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintHorizontal_chainStyle="spread"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            app:layout_constraintVertical_bias="0.8" />

    </androidx.constraintlayout.widget.ConstraintLayout>
</layout>