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如何创建可响应的GridView以覆盖整个屏幕?

[英]How to create responsive GridView to cover whole screen?

I have the following layout in an Activity of my Android app: 我的Android应用程序的“活动”中具有以下布局:

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There are 3 sections and 10 buttons, with icon and text. 有3个部分和10个按钮,以及图标和文本。 As you can see on large screen (most of phones nowadays) I get a lot of blank space at the bottom of the screen. 如您所见,在大屏幕上(当今大多数电话),屏幕底部都有很多空白。 Do you know how to make the GridView using all the room and filling that white part? 您知道如何使用所有房间并填充白色部分来制作GridView吗? Is it possible to make it responsive so every row and column of the grid could adapt according to screen size? 是否可以使其具有响应性,以便网格的每一行和每一列都可以根据屏幕尺寸进行调整?

Here are my XML files: 这是我的XML文件:

my_activity.xml (used by my Activity) my_activity.xml (由我的Activity使用)

<ImageView
    android:id="@+id/imageView1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center_horizontal"
    android:layout_marginTop="10dp"
    android:layout_marginBottom="10dp"
    android:contentDescription="@string/logo"
    android:src="@drawable/company_logo" />

<TextView
    android:id="@+id/textView1"
    android:layout_width="match_parent"
    android:layout_height="26dp"
    android:background="#4d4d4d"
    android:textColor="#ffffff"
    android:text="@string/menu1"
    android:gravity="center"
    android:textSize="16sp" />

<GridView
    android:id="@+id/gridView1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:horizontalSpacing="5dp"
    android:numColumns="3"
    android:verticalSpacing="5dp" >
</GridView>

<TextView
    android:id="@+id/textView2"
    android:layout_width="match_parent"
    android:layout_height="26dp"
    android:background="#4d4d4d"
    android:layout_marginTop="10dp"
    android:textColor="#ffffff"        
    android:text="@string/menu2"
    android:gravity="center"
    android:textSize="16sp" />    

<GridView
    android:id="@+id/gridView2"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:horizontalSpacing="5dp"
    android:numColumns="auto_fit"
    android:verticalSpacing="5dp" >
</GridView>

<TextView
    android:id="@+id/textView3"
    android:layout_width="match_parent"
    android:layout_height="26dp"
    android:background="#4d4d4d"
    android:layout_marginTop="10dp"
    android:textColor="#ffffff"        
    android:text="@string/menu3"
    android:gravity="center"
    android:textSize="16sp" />    

<GridView
    android:id="@+id/gridView3"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:horizontalSpacing="5dp"
    android:numColumns="2"
    android:verticalSpacing="5dp" >
</GridView>    

gridview_row.xml (used by a GridViewAdapter) gridview_row.xml (由GridViewAdapter使用)

    <ImageView
        android:layout_height="32dp"
        android:id="@+id/imageView1"
        android:layout_width="32dp"    
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true">
    </ImageView>

    <TextView
        android:text="TextView"
        android:layout_height="wrap_content"
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_below="@+id/imageView1"
        android:layout_marginTop="5dp"
        android:layout_centerHorizontal="true"
        android:textSize="18sp"
        android:ellipsize="marquee">
    </TextView>
</RelativeLayout>

You better use ConstraintLayout if you want to have a responsive layout for all devices, here is an example of constraint layout with some guidelines : 如果要为所有设备提供响应式布局,最好使用ConstraintLayout ,这是带有一些准则的约束布局示例:

<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:id="@+id/frameLayout2"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".Fragments.MenusDesign.ExpandableCategoriesMenu.ExpandableCategoriesMenu"
tools:layout_editor_absoluteY="81dp">


<Button
    android:id="@+id/logo"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginStart="8dp"
    android:layout_marginTop="8dp"
    android:layout_marginEnd="8dp"
    android:layout_marginBottom="8dp"
    android:text="logo"
    app:layout_constraintBottom_toTopOf="@+id/guideline2"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent" />

<androidx.constraintlayout.widget.Guideline
    android:id="@+id/guideline2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    app:layout_constraintGuide_percent="0.1" />

<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" />

<Button
    android:id="@+id/firstsection"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:layout_marginStart="8dp"
    android:layout_marginTop="8dp"
    android:layout_marginEnd="8dp"
    android:layout_marginBottom="8dp"
    android:text="first section"
    app:layout_constraintBottom_toTopOf="@+id/guideline4"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/logo" />

<Button
    android:id="@+id/button3"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:layout_marginStart="8dp"
    android:layout_marginTop="8dp"
    android:layout_marginEnd="8dp"
    android:layout_marginBottom="8dp"
    android:text="5"
    app:layout_constraintBottom_toTopOf="@+id/guideline3"
    app:layout_constraintEnd_toStartOf="@+id/guideline6"
    app:layout_constraintHorizontal_bias="0.548"
    app:layout_constraintStart_toStartOf="@+id/guideline7"
    app:layout_constraintTop_toBottomOf="@+id/button6" />

<Button
    android:id="@+id/button7"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:layout_marginStart="8dp"
    android:layout_marginTop="8dp"
    android:layout_marginEnd="8dp"
    android:layout_marginBottom="8dp"
    android:text="1"
    app:layout_constraintBottom_toTopOf="@+id/guideline5"
    app:layout_constraintEnd_toStartOf="@+id/guideline7"
    app:layout_constraintHorizontal_bias="0.0"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="@+id/guideline4" />

<Button
    android:id="@+id/button8"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:layout_marginStart="8dp"
    android:layout_marginTop="8dp"
    android:layout_marginEnd="8dp"
    android:layout_marginBottom="8dp"
    android:text="6"
    app:layout_constraintBottom_toTopOf="@+id/guideline3"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="@+id/guideline6"
    app:layout_constraintTop_toTopOf="@+id/button3" />

<Button
    android:id="@+id/button4"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:layout_marginStart="8dp"
    android:layout_marginTop="8dp"
    android:layout_marginEnd="8dp"
    android:layout_marginBottom="8dp"
    android:text="4"
    app:layout_constraintBottom_toTopOf="@+id/guideline3"
    app:layout_constraintEnd_toStartOf="@+id/guideline7"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/button7" />

<Button
    android:id="@+id/button5"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:layout_marginStart="8dp"
    android:layout_marginTop="8dp"
    android:layout_marginEnd="8dp"
    android:layout_marginBottom="8dp"
    android:text="3"
    app:layout_constraintBottom_toTopOf="@+id/guideline5"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHorizontal_bias="0.0"
    app:layout_constraintStart_toStartOf="@+id/guideline6"
    app:layout_constraintTop_toTopOf="@+id/guideline4" />

<Button
    android:id="@+id/button6"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:layout_marginStart="8dp"
    android:layout_marginTop="8dp"
    android:layout_marginEnd="8dp"
    android:layout_marginBottom="8dp"
    android:text="2"
    app:layout_constraintBottom_toTopOf="@+id/guideline5"
    app:layout_constraintEnd_toStartOf="@+id/guideline6"
    app:layout_constraintStart_toStartOf="@+id/guideline7"
    app:layout_constraintTop_toTopOf="@+id/guideline4" />

<androidx.constraintlayout.widget.Guideline
    android:id="@+id/guideline6"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    app:layout_constraintGuide_percent="0.66" />

<androidx.constraintlayout.widget.Guideline
    android:id="@+id/guideline7"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    app:layout_constraintGuide_percent="0.33" />

<Button
    android:id="@+id/button"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:layout_marginStart="8dp"
    android:layout_marginTop="8dp"
    android:layout_marginEnd="8dp"
    android:text="second section"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="@+id/guideline3" />

<androidx.constraintlayout.widget.Guideline
    android:id="@+id/guideline4"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    app:layout_constraintGuide_percent="0.2" />

<androidx.constraintlayout.widget.Guideline
    android:id="@+id/guideline5"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    app:layout_constraintGuide_percent="0.35" />

<Button
    android:id="@+id/button2"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:layout_marginStart="8dp"
    android:layout_marginTop="8dp"
    android:layout_marginEnd="8dp"
    android:layout_marginBottom="8dp"
    android:text="7"
    app:layout_constraintBottom_toTopOf="@+id/guideline9"
    app:layout_constraintEnd_toStartOf="@+id/guideline8"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/button" />

<Button
    android:id="@+id/button9"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:layout_marginStart="8dp"
    android:layout_marginTop="8dp"
    android:layout_marginEnd="8dp"
    android:layout_marginBottom="8dp"
    android:text="8"
    app:layout_constraintBottom_toTopOf="@+id/guideline9"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="@+id/guideline8"
    app:layout_constraintTop_toBottomOf="@+id/button" />

<androidx.constraintlayout.widget.Guideline
    android:id="@+id/guideline8"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    app:layout_constraintGuide_percent="0.5" />

<androidx.constraintlayout.widget.Guideline
    android:id="@+id/guideline9"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    app:layout_constraintGuide_percent="0.75" />

<Button
    android:id="@+id/button10"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:layout_marginStart="8dp"
    android:layout_marginTop="8dp"
    android:layout_marginEnd="8dp"
    android:text="third section"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="@+id/guideline9" />

<Button
    android:id="@+id/button11"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:layout_marginStart="8dp"
    android:layout_marginTop="8dp"
    android:layout_marginEnd="8dp"
    android:layout_marginBottom="8dp"
    android:text="9"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toStartOf="@+id/guideline8"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/button10" />

<Button
    android:id="@+id/button12"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:layout_marginStart="8dp"
    android:layout_marginTop="8dp"
    android:layout_marginEnd="8dp"
    android:layout_marginBottom="8dp"
    android:text="10"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="@+id/guideline8"
    app:layout_constraintTop_toBottomOf="@+id/button10" />


Here is how the layout will look on your screen: 这是布局在屏幕上的外观:


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Remember that this is just an example and you can change the ratio/height/width of the views as you like. 请记住 ,这只是一个示例,您可以根据需要更改视图的比率/高度/宽度。

A small note on guidelines - they are very comfortable to use and in the above example you can see that I gave the guidelines Percents in order to tell them how to be placed (relatively to the screen) on the screen. 关于指导原则的小注释 -使用它们非常舒适,在上面的示例中,您可以看到我给出了指导百分比,以告诉他们如何在屏幕上(相对于屏幕)放置。

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