YouTuBe 项目界面笔记

#1

在 FireBase 实体后台数据库注册该软件，Android 开发 注册界面。
具体的FireBase 数据库注册很简单，不讲了。
看一下我们的布局界面：

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#ffffff"
    tools:context=".Activity.RegisterActivity">

    <ImageView
        android:id="@+id/imageView"
        android:layout_width="90dp"
        android:layout_height="90dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="40dp"
        android:layout_marginEnd="8dp"
        android:src="@drawable/userphoto"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <androidx.constraintlayout.widget.Guideline
        android:id="@+id/guideline3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        app:layout_constraintGuide_percent="0.5" />

    <EditText
        android:id="@+id/regName"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginStart="40dp"
        android:layout_marginTop="65dp"
        android:layout_marginEnd="40dp"
        android:background="@drawable/reg_edittext_style"
        android:ems="10"
        android:hint="Name"
        android:inputType="textPersonName"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/imageView" />

    <EditText
        android:id="@+id/regEmail"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="40dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="40dp"
        android:layout_marginBottom="4dp"
        android:background="@drawable/reg_edittext_style"
        android:ems="10"
        android:hint="Email"
        android:inputType="textPersonName"
        app:layout_constraintBottom_toTopOf="@+id/regPassword"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/regName" />

    <EditText
        android:id="@+id/regPassword"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="40dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="40dp"
        android:background="@drawable/reg_edittext_style"
        android:ems="10"
        android:hint="Password"
        android:inputType="textPassword"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/regEmail" />

    <EditText
        android:id="@+id/regRePassword"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="40dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="40dp"
        android:background="@drawable/reg_edittext_style"
        android:ems="10"
        android:hint="Password"
        android:inputType="textPassword"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/regPassword" />

    <Button
        android:id="@+id/regBtn"
        android:layout_width="130dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="8dp"
        android:layout_marginTop="48dp"
        android:layout_marginEnd="8dp"
        android:background="@drawable/reg_btn_style"
        android:text="Register"
        android:textColor="#fff"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.498"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/regRePassword" />

    <ProgressBar
        android:id="@+id/progressBar"
        style="?android:attr/progressBarStyle"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintBottom_toBottomOf="@+id/regBtn"
        app:layout_constraintEnd_toEndOf="@+id/regBtn"
        app:layout_constraintStart_toStartOf="@+id/regBtn"
        app:layout_constraintTop_toTopOf="@+id/regBtn" />

</androidx.constraintlayout.widget.ConstraintLayout>

然后看看我们的控件背景布局如何操作：
reg_btn_style.xml

  <?xml version="1.0" encoding="utf-8"?>
    <shape xmlns:android="http://schemas.android.com/apk/res/android">
        <solid android:color="@color/colorPrimaryDark" />
        <corners android:radius="20dp"/>
    </shape>
    

reg_edittext_style.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="#E9E9E9" />
    <corners android:radius="40dp" />
    <padding
        android:bottom="10dp"
        android:left="15dp"
        android:right="15dp"
        android:top="10dp" />
</shape>

来源：https://www.cnblogs.com/cao-1/p/12301200.html