Kotlin布局文件调整:实现控件等高效果

使用 GPT-4o 回答,作者 GPT4oMini.app

问题:

Android开发,用Kotlin语言。有一个layout文件如下:

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

<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/loginLayout" xmlns:app="http://schemas.android.com/apk/res-auto">

<TextView
    android:id="@+id/accountLabel"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:textSize="18sp"
    android:text="Account:"
    app:layout_constraintEnd_toStartOf="@+id/accountEdit"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent"
    app:layout_constraintVertical_bias="0.1"
    android:layout_marginEnd="8dp"
    android:layout_marginTop="16dp"/>

<EditText
    android:id="@+id/accountEdit"
    android:layout_width="0dp"
    android:layout_height="48dp"
    android:layout_marginTop="16dp"
    android:hint="Enter your account"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toEndOf="@+id/accountLabel"
    app:layout_constraintTop_toTopOf="@+id/accountLabel"
    app:layout_constraintHorizontal_bias="0"
    android:layout_marginStart="8dp"/>

<TextView
    android:id="@+id/passwordLabel"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:textSize="18sp"
    android:text="Password:"
    app:layout_constraintEnd_toStartOf="@+id/passwordEdit"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/accountEdit"
    app:layout_constraintVertical_bias="0.1"
    android:layout_marginEnd="8dp"
    android:layout_marginTop="16dp"/>

<EditText
    android:id="@+id/passwordEdit"
    android:layout_width="0dp"
    android:layout_height="48dp"
    android:layout_marginTop="16dp"
    android:inputType="textPassword"
    android:hint="Enter your password"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toEndOf="@+id/passwordLabel"
    app:layout_constraintTop_toTopOf="@+id/passwordLabel"
    app:layout_constraintHorizontal_bias="0"
    android:layout_marginStart="8dp"/>

</androidx.constraintlayout.widget.ConstraintLayout>

要求accountLabel和accountEdit要等高,passwordLabel和passwordEdit要等高。请帮忙调整一下。

答案:

要使 TextViewEditText 等高,可以使用 ConstraintLayoutlayout_constraintHeight_default 属性,将其设置为 wrap。这样可以确保两个控件的高度相同。以下是调整后的布局文件:

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/loginLayout"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <TextView
        android:id="@+id/accountLabel"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:textSize="18sp"
        android:text="Account:"
        app:layout_constraintEnd_toStartOf="@+id/accountEdit"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.1"
        android:layout_marginEnd="8dp"
        android:layout_marginTop="16dp"
        app:layout_constraintHeight_default="wrap"/>

    <EditText
        android:id="@+id/accountEdit"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_marginTop="16dp"
        android:hint="Enter your account"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toEndOf="@+id/accountLabel"
        app:layout_constraintTop_toTopOf="@+id/accountLabel"
        app:layout_constraintBottom_toBottomOf="@+id/accountLabel"
        app:layout_constraintHorizontal_bias="0"
        android:layout_marginStart="8dp"
        app:layout_constraintHeight_default="wrap"/>

    <TextView
        android:id="@+id/passwordLabel"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:textSize="18sp"
        android:text="Password:"
        app:layout_constraintEnd_toStartOf="@+id/passwordEdit"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/accountEdit"
        app:layout_constraintVertical_bias="0.1"
        android:layout_marginEnd="8dp"
        android:layout_marginTop="16dp"
        app:layout_constraintHeight_default="wrap"/>

    <EditText
        android:id="@+id/passwordEdit"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_marginTop="16dp"
        android:inputType="textPassword"
        android:hint="Enter your password"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toEndOf="@+id/passwordLabel"
        app:layout_constraintTop_toTopOf="@+id/passwordLabel"
        app:layout_constraintBottom_toBottomOf="@+id/passwordLabel"
        app:layout_constraintHorizontal_bias="0"
        android:layout_marginStart="8dp"
        app:layout_constraintHeight_default="wrap"/>

</androidx.constraintlayout.widget.ConstraintLayout>

在这个布局中,TextViewEditText 的高度都设置为 wrap_content,并且通过 app:layout_constraintHeight_default="wrap" 属性确保它们的高度相同。这样可以确保 accountLabelaccountEdit 以及 passwordLabelpasswordEdit 等高。