使用GridLayout来处理计算器

象似的

我在使布局看起来不错时遇到了麻烦。

为了了解基础知识，我决定创建一个简单的计算器应用程序。
因此，我使用嵌套在LinearLayout中的GridLayout将Button放置在文本字段下。

这是我的布局来源。

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:weightSum="100">

    <TextView
        android:layout_height="wrap_content"
        android:layout_width="match_parent"
        android:text="0"
        android:layout_weight="30"/>

    <GridLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:columnCount="4"
        android:rowCount="5"
        android:orientation="horizontal"
        android:useDefaultMargins="false"
        android:layout_weight="70">

        <Button
            android:text="C" />

        <Button
            android:text="BS" />

        <Button
            android:text="/" />

        <Button
            android:text="x" />

        <Button
            android:text="7" />

        <Button
            android:text="8" />

        <Button
            android:text="9" />

        <Button
            android:text="-" />

        <Button
            android:text="4" />

        <Button
            android:text="5" />

        <Button
            android:text="6" />

        <Button
            android:text="+" />

        <Button
            android:text="1" />

        <Button
            android:text="2" />

        <Button
            android:text="3" />

        <Button
            android:layout_gravity="fill"
            android:layout_rowSpan="2"
            android:text="=" />
        <Button
            android:layout_gravity="fill"
            android:layout_columnSpan="2"
            android:text="0" />
        <Button
            android:text="." />
    </GridLayout>

</LinearLayout>

如何使这种布局充满屏幕？

并让我的应用看起来像这样

希望能快速得到答案。

[编辑]：所以，现在情况好多了，但是我遇到了新的问题。现在我的主要活动看起来像这样

我认为很好，但是：

如何清除键盘右侧的空白区域？
如何使键盘和文本视图分别占据屏幕的70％和30％？

另外，新的布局代码是：

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

<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="android.calcandroid.MainActivity">

    <TextView
        android:background="@drawable/shape"
        android:layout_height="match_parent"
        android:layout_width="match_parent"
        android:text="0"
        android:layout_above="@+id/gridLayout" />

    <GridLayout
        android:id="@+id/gridLayout"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_alignParentBottom="true"
        android:columnCount="4"
        android:rowCount="5"
        android:orientation="horizontal"
        android:useDefaultMargins="false">

        <Button
            android:background="@drawable/shape"
            android:text="C" />

        <Button
            android:background="@drawable/shape"
            android:text="BS" />

        <Button
            android:background="@drawable/shape"
            android:text="/" />

        <Button
            android:background="@drawable/shape"
            android:text="x" />

        <Button
            android:background="@drawable/shape"
            android:text="7" />

        <Button
            android:background="@drawable/shape"
            android:text="8" />

        <Button
            android:background="@drawable/shape"
            android:text="9" />

        <Button
            android:background="@drawable/shape"
            android:text="-" />

        <Button
            android:background="@drawable/shape"
            android:text="4" />

        <Button
            android:background="@drawable/shape"
            android:text="5" />

        <Button
            android:background="@drawable/shape"
            android:text="6" />

        <Button
            android:background="@drawable/shape"
            android:text="+" />

        <Button
            android:background="@drawable/shape"
            android:text="1" />

        <Button
            android:background="@drawable/shape"
            android:text="2" />

        <Button
            android:background="@drawable/shape"
            android:text="3" />

        <Button
            android:background="@drawable/shape"
            android:layout_gravity="fill_vertical"
            android:layout_rowSpan="2"
            android:text="=" />
        <Button
            android:background="@drawable/shape"
            android:layout_gravity="fill_horizontal"
            android:layout_columnSpan="2"
            android:text="0" />
        <Button
            android:background="@drawable/shape"
            android:text="." />
    </GridLayout>

</RelativeLayout>

板球运动员

非常接近。不确定如何处理垂直分隔线。由于某种原因1dp，在跨行的每一列之间放置一个View会导致GridLayout扩展整个View。

要使用此功能，您的支持库版本需要此依赖项

compile "com.android.support:gridlayout-v7:<support library number>"

color.xml

<color name="calcAccent">#ef6c00</color>

styles.xml

<style name="calcAction">
    <item name="android:background">#f7f8fa</item>
</style>
<style name="calcNumber">
    <item name="android:background">#fafbfd</item>
</style>

布局XML

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:grid="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

    <TextView
            android:layout_height="match_parent"
            android:layout_width="match_parent"
            android:text="0"
            android:layout_above="@+id/gridLayout" android:layout_alignParentLeft="true"
            android:layout_alignParentStart="true" android:gravity="bottom|end"
            android:singleLine="true" android:textAppearance="@style/TextAppearance.AppCompat.Headline"
            android:textSize="48sp" android:background="#e3e7ea" android:paddingBottom="32dp"
            android:padding="16dp"/>

    <android.support.v7.widget.GridLayout
            android:id="@+id/gridLayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true" android:layout_centerHorizontal="true"
            grid:useDefaultMargins="false" grid:alignmentMode="alignBounds" grid:columnCount="7" grid:rowCount="9">

        <!-- Row 1 -->
        <Button
                android:text="C"
                grid:layout_row="0" grid:layout_column="0"
                style="@style/calcAction" android:textStyle="bold" android:textColor="@color/calcAccent"
                grid:layout_columnWeight="1" grid:layout_rowWeight="1"/>
        <ImageButton
                android:src="@android:drawable/ic_input_delete"
                grid:layout_row="0" grid:layout_column="2"
                style="@style/calcAction"
                grid:layout_columnWeight="1" grid:layout_rowWeight="1" />
        <Button
                android:text="&#247;"
                grid:layout_row="0"
                style="@style/calcAction"
                grid:layout_columnWeight="1" grid:layout_rowWeight="1" grid:layout_column="4"/>
        <Button
                android:text="x"
                grid:layout_row="0" grid:layout_column="6"
                grid:layout_columnWeight="1" grid:layout_rowWeight="1"
                style="@style/calcAction"/>

        <!-- Row 2 -->
        <View
                grid:layout_gravity="fill_horizontal"
                android:layout_height="1dp"
                grid:layout_row="1" grid:layout_column="0" grid:layout_columnSpan="7"
                android:background="#eee"/>
        <Button
                android:text="7" grid:layout_row="2" grid:layout_column="0"
                grid:layout_columnWeight="1" grid:layout_rowWeight="1"
                style="@style/calcNumber"/>
        <Button
                android:text="8" grid:layout_row="2" grid:layout_column="2"
                style="@style/calcNumber"
                grid:layout_columnWeight="1" grid:layout_rowWeight="1"/>
        <Button
                android:text="9" grid:layout_row="2" grid:layout_column="4"
                style="@style/calcNumber"
                grid:layout_columnWeight="1" grid:layout_rowWeight="1"/>
        <Button
                android:text="-" grid:layout_row="2" grid:layout_column="6"
                style="@style/calcAction"
                grid:layout_columnWeight="1" grid:layout_rowWeight="1"/>

        <!-- Row 3 -->
        <View
                grid:layout_gravity="fill_horizontal"
                android:layout_height="1dp"
                grid:layout_row="3" grid:layout_column="0" grid:layout_columnSpan="7"
                android:background="#eee"/>
        <Button
                android:text="4" grid:layout_row="4" grid:layout_column="0"
                style="@style/calcNumber"
                grid:layout_columnWeight="1" grid:layout_rowWeight="1"/>
        <Button
                android:text="5" grid:layout_row="4" grid:layout_column="2"
                style="@style/calcNumber"
                grid:layout_columnWeight="1" grid:layout_rowWeight="1"/>
        <Button
                android:text="6" grid:layout_row="4" grid:layout_column="4"
                style="@style/calcNumber"
                grid:layout_columnWeight="1" grid:layout_rowWeight="1"/>
        <Button
                android:text="+" grid:layout_row="4" grid:layout_column="6"
                style="@style/calcAction"
                grid:layout_columnWeight="1" grid:layout_rowWeight="1"/>

        <View
                grid:layout_gravity="fill_horizontal"
                android:layout_height="1dp"
                grid:layout_row="7" grid:layout_column="0" grid:layout_columnSpan="7"
                android:background="#eee"/>

        <!-- Row 4 -->
        <Button
                android:text="1" grid:layout_row="6" grid:layout_column="0"
                style="@style/calcNumber"
                grid:layout_columnWeight="1" grid:layout_rowWeight="1"/>
        <Button
                android:text="2" grid:layout_row="6" grid:layout_column="2"
                style="@style/calcNumber"
                grid:layout_columnWeight="1" grid:layout_rowWeight="1"/>
        <Button
                android:text="3" grid:layout_row="6" grid:layout_column="4"
                style="@style/calcNumber"
                grid:layout_columnWeight="1" grid:layout_rowWeight="1"/>
        <Button
                android:text="=" grid:layout_row="6" grid:layout_column="6"
                style="@style/calcNumber" android:background="@color/calcAccent"
                grid:layout_rowSpan="3"
                grid:layout_columnWeight="1" grid:layout_rowWeight="1"
                android:textAppearance="@style/TextAppearance.AppCompat.Large"
                android:textColor="@color/primary_material_light" android:textStyle="bold" android:textSize="22sp"
                android:gravity="bottom|center_horizontal" android:padding="8dp"/>
        <!-- Row 5 -->

        <Button
                grid:layout_columnWeight="1" grid:layout_rowWeight="1"
                android:text="0"
                grid:layout_row="8" grid:layout_column="0" grid:layout_columnSpan="3"
                style="@style/calcNumber"/>
        <Button
                android:text="."
                grid:layout_row="8" grid:layout_column="4"
                grid:layout_columnWeight="1" style="@style/calcNumber"/>

        <!-- Horizontal Grid -->
        <View
                grid:layout_gravity="fill_horizontal"
                android:layout_height="1dp"
                grid:layout_row="5" grid:layout_column="0" grid:layout_columnSpan="7"
                android:background="#eee"/>


    </android.support.v7.widget.GridLayout>

</RelativeLayout>

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