全屏显示Android Studio 4按钮[关闭]

Question

我是android studio的初学者，谁能告诉我如何设计4个按钮覆盖整个屏幕

Answer 1

使用 ConstraintLayout

试试这个

<?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"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <ImageView
        android:id="@+id/imgOne"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:background="@color/colorPrimary"
        app:layout_constraintBottom_toTopOf="@+id/imgThree"
        app:layout_constraintEnd_toStartOf="@id/imgTwo"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="10dp"
        android:text="NEW ITEM"
        android:textColor="@color/colorBlack"
        app:layout_constraintBottom_toBottomOf="@id/imgOne"
        app:layout_constraintEnd_toStartOf="@id/imgTwo"
        app:layout_constraintStart_toStartOf="parent" />

    <ImageView
        android:id="@+id/imgTwo"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:background="@color/colorblue"
        app:layout_constraintBottom_toTopOf="@+id/imgFour"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toEndOf="@id/imgOne"
        app:layout_constraintTop_toTopOf="parent" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="10dp"
        android:text="NEW ITEM"
        android:textColor="@color/colorBlack"
        app:layout_constraintBottom_toBottomOf="@id/imgTwo"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="@id/imgTwo" />

    <ImageView
        android:id="@+id/imgThree"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:background="@color/colorGreen"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toStartOf="@id/imgTwo"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/imgOne" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="10dp"
        android:text="NEW ITEM"
        android:textColor="@color/colorBlack"
        app:layout_constraintBottom_toBottomOf="@id/imgThree"
        app:layout_constraintEnd_toStartOf="@id/imgFour"
        app:layout_constraintStart_toStartOf="parent" />

    <ImageView
        android:id="@+id/imgFour"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:background="@color/colorAccent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toEndOf="@id/imgThree"
        app:layout_constraintTop_toBottomOf="@+id/imgTwo" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="10dp"
        android:text="NEW ITEM"
        android:textColor="@color/colorBlack"
        app:layout_constraintBottom_toBottomOf="@id/imgThree"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="@id/imgTwo" />

</androidx.constraintlayout.widget.ConstraintLayout>

Answer 2

这是最简单的方法。

线性布局：

<?xml version="1.0" encoding="utf-8"?>
<androidx.appcompat.widget.LinearLayoutCompat xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <androidx.appcompat.widget.LinearLayoutCompat
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1">

        <androidx.appcompat.widget.AppCompatImageButton
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1" />

        <androidx.appcompat.widget.AppCompatImageButton
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1" />
    </androidx.appcompat.widget.LinearLayoutCompat>

    <androidx.appcompat.widget.LinearLayoutCompat
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1">

        <androidx.appcompat.widget.AppCompatImageButton
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1" />

        <androidx.appcompat.widget.AppCompatImageButton
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1" />
    </androidx.appcompat.widget.LinearLayoutCompat>
</androidx.appcompat.widget.LinearLayoutCompat>

约束布局：

<?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"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <androidx.appcompat.widget.AppCompatImageButton
        android:id="@+id/ib1"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:layout_constraintBottom_toTopOf="@+id/ib3"
        app:layout_constraintEnd_toStartOf="@id/ib2"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <androidx.appcompat.widget.AppCompatImageButton
        android:id="@+id/ib2"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:layout_constraintBottom_toTopOf="@+id/ib4"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toEndOf="@id/ib1"
        app:layout_constraintTop_toTopOf="parent" />

    <androidx.appcompat.widget.AppCompatImageButton
        android:id="@+id/ib3"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toStartOf="@id/ib2"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/ib1" />

    <androidx.appcompat.widget.AppCompatImageButton
        android:id="@+id/ib4"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toEndOf="@id/ib3"
        app:layout_constraintTop_toBottomOf="@+id/ib2" />
</androidx.constraintlayout.widget.ConstraintLayout>