android - 使用权重创建线性布局

Question

我正在尝试做类似的事情-仅Android Layout（用户界面）我想让第一列的权重为4，第二列的权重为2（也有两行），最后一列的权重1（也有三行）......问题是它自己搞砸了（我复制并粘贴了答案并根据我的需要更改了所有内容，但它一直搞砸了...... =）有什么帮助吗？[代码]

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@color/background_color"
    android:orientation="vertical"

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="4"
        android:gravity="center_horizontal|center_vertical"
        android:orientation="horizontal" >

        <TextView
            android:id="@+id/textDishes"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="20dp"
            android:text="@string/dishes"
            android:textAppearance="?android:attr/textAppearanceLarge" />

        <ImageView
            android:id="@+id/imageDishes"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_launcher" />
    </LinearLayout>

    <View
        android:layout_width="fill_parent"
        android:layout_height="@dimen/seperator_size"
        android:background="@color/seperator" />

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="2"
        android:measureWithLargestChild="true"
        android:orientation="horizontal"
        android:weightSum="2" >

        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:gravity="center_horizontal"
            android:orientation="vertical" >

            <TextView
                android:id="@+id/textfood"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/food"
                android:textAppearance="?android:attr/textAppearanceLarge" />

            <ImageView
                android:id="@+id/imagefood"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:src="@drawable/ic_launcher" />
        </LinearLayout>

        <View
            android:layout_width="fill_parent"
            android:layout_height="@dimen/seperator_size"
            android:background="@color/seperator" />

        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:gravity="center_horizontal"
            android:orientation="vertical" >

            <TextView
                android:id="@+id/textMalls"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/malls"
                android:textAppearance="?android:attr/textAppearanceLarge" />

            <ImageView
                android:id="@+id/imageMalls"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:src="@drawable/ic_launcher" />
        </LinearLayout>
    </LinearLayout>

    <View
        android:layout_width="fill_parent"
        android:layout_height="@dimen/seperator_size"
        android:background="@color/seperator" />

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:weightSum="3"
        android:orientation="horizontal" >

        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:gravity="center_horizontal"
            android:orientation="vertical" >

            <TextView
                android:id="@+id/textView1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/app_name"
                android:textAppearance="?android:attr/textAppearanceLarge" />

            <ImageView
                android:id="@+id/imageView1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:src="@drawable/ic_launcher" />
        </LinearLayout>

        <View
            android:layout_width="fill_parent"
            android:layout_height="@dimen/seperator_size"
            android:background="@color/seperator" />

        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:gravity="center_horizontal"
            android:orientation="vertical" >

            <TextView
                android:id="@+id/textView2"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/coupons"
                android:textAppearance="?android:attr/textAppearanceLarge" />

            <ImageView
                android:id="@+id/imageView2"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:src="@drawable/ic_launcher" />
        </LinearLayout>

         <View
            android:layout_width="fill_parent"
            android:layout_height="@dimen/seperator_size"
            android:background="@color/seperator" />

        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:gravity="center_horizontal"
            android:orientation="vertical" >

            <TextView
                android:id="@+id/textView3"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/markets"
                android:textAppearance="?android:attr/textAppearanceLarge" />

            <ImageView
                android:id="@+id/imageView3"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:src="@drawable/ic_launcher" />
        </LinearLayout>
    </LinearLayout>

</LinearLayout>
[/code]

结果就是这样——

结果应该看起来像 - 有 帮助吗？

Answer 1

现在编辑工作示例

这不是一个完整的答案，因为垂直分隔线仍然不起作用，但希望它能让你朝着正确的方向前进：

<LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="0dp"
    android:layout_weight="4"
    android:gravity="center"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/textDishes"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Dishes"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <ImageView
        android:id="@+id/imageDishes"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_launcher" />
</LinearLayout>

<View
    android:layout_width="match_parent"
    android:layout_height="5dp"
    android:background="@color/red" />

<LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="0dp"
    android:layout_weight="2"
    android:orientation="horizontal" >

    <LinearLayout
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:gravity="center"
        android:orientation="vertical" >

        <TextView
            android:id="@+id/textfood"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Food"
            android:textAppearance="?android:attr/textAppearanceLarge" />

        <ImageView
            android:id="@+id/imagefood"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_launcher" />
    </LinearLayout>

    <View
        android:layout_width="5dp"
        android:layout_height="fill_parent"
        android:background="@color/red"
        android:gravity="center" >
    </View>

    <LinearLayout
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:gravity="center"
        android:orientation="vertical" >

        <TextView
            android:id="@+id/textMalls"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Malls"
            android:textAppearance="?android:attr/textAppearanceLarge" />

        <ImageView
            android:id="@+id/imageMalls"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_launcher" />
    </LinearLayout>
</LinearLayout>

<View
    android:layout_width="match_parent"
    android:layout_height="5dp"
    android:background="@color/red" />

<LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="0dp"
    android:layout_weight="1"
    android:orientation="horizontal" >

    <LinearLayout
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:gravity="center"
        android:orientation="vertical" >

        <TextView
            android:id="@+id/textView1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="App name"
            android:textAppearance="?android:attr/textAppearanceLarge" />

        <ImageView
            android:id="@+id/imageView1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_launcher" />
    </LinearLayout>

    <View
        android:layout_width="5dp"
        android:layout_height="fill_parent"
        android:background="@color/red"
        android:gravity="center" >
    </View>

    <LinearLayout
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:gravity="center"
        android:orientation="vertical" >

        <TextView
            android:id="@+id/textView2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Coupons"
            android:textAppearance="?android:attr/textAppearanceLarge" />

        <ImageView
            android:id="@+id/imageView2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_launcher" />
    </LinearLayout>

    <View
        android:layout_width="5dp"
        android:layout_height="fill_parent"
        android:background="@color/red"
        android:gravity="center" >
    </View>

    <LinearLayout
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:gravity="center"
        android:orientation="vertical" >

        <TextView
            android:id="@+id/textView3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Markets"
            android:textAppearance="?android:attr/textAppearanceLarge" />

        <ImageView
            android:id="@+id/imageView3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_launcher" />
    </LinearLayout>
</LinearLayout>

Answer 2

当您在此处包含 XML 时，我不确定这是否只是一个错误，但是您在父 LinearLayout 之后缺少一个“>”。

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@color/background_color"
android:orientation="vertical"

应该

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@color/background_color"
android:orientation="vertical" >

此外，您在此父布局的某些子布局中使用权重，但您尚未在父 LinearLayout 中指定 weightSum 总计。请记住，weightSum 是分配给孩子的总权重，因此他们的权重应该加起来就是这个 weightSum。此外，请注意，但使用嵌套权重（如果您添加它，您会这样做）对性能不利。

也许您的问题的最佳解决方案是探索不同的布局选项而不是使用 LinearLayout？不过，你可以让它以这种方式工作。使父权重总和为 7，并确保根据需要将其分配给子级。

根据您的图片（并使用线性布局），我认为它应该看起来像这样：

<LinearLayout
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:weightSum="7" >

<LinearLayout
    android:orientation="horizontal"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:weight="4" >

// This one's child here - it has weight 1.

<LinearLayout
    android:orientation="horizontal"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:weightSum="2"
    android:weight="2" >

// This one's children here - they both have weight 1.

 <LinearLayout
    android:orientation="horizontal"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:weightSum="3"
    android:weight="1" >

// This one's children here - they all have weight 1.

不要忘记关闭 LinearLayouts。我也没有测试过该代码，因此您需要查看它是否存在可能的错误。

Answer 3

I'm not sure if this is your only problem but when using weight your layout_width should be "0dp" for a horizontal orientation and layout_height should be "0dp" for a vertical orientation. So for example your first child should be

<LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="0dp"
    android:layout_weight="4"
    android:gravity="center_horizontal|center_vertical"
    android:orientation="horizontal" >

because it belongs to a parent LinearLayout who's orientation is vertical

Update

Something like this should get you really close. Note I had to take out your resources to make it work in my editor so you will just have to put those back in

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">

<LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="0dp"
    android:layout_weight="4"
    android:gravity="center_horizontal|center_vertical"
    android:orientation="horizontal" >

    <TextView
        android:id="@+id/textDishes"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="20dp"
        android:text="Dishes"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <ImageView
        android:id="@+id/imageDishes"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_launcher" />
</LinearLayout>

<View
    android:layout_width="fill_parent"
    android:layout_height="1dp" />

<LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="0dp"
    android:layout_weight="2"
    android:measureWithLargestChild="true"
    android:orientation="horizontal"
    android:weightSum="2" >

    <LinearLayout
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:gravity="center_horizontal"
        android:orientation="vertical" >

        <TextView
            android:id="@+id/textfood"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Food"
            android:textAppearance="?android:attr/textAppearanceLarge" />

        <ImageView
            android:id="@+id/imagefood"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_launcher" />
    </LinearLayout>

    <View
        android:layout_width="1dp"
        android:layout_height="fill_parent" />

    <LinearLayout
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:gravity="center_horizontal"
        android:orientation="vertical" >

        <TextView
            android:id="@+id/textMalls"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Malls"
            android:textAppearance="?android:attr/textAppearanceLarge" />

        <ImageView
            android:id="@+id/imageMalls"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_launcher" />
    </LinearLayout>
</LinearLayout>

<View
    android:layout_width="fill_parent"
    android:layout_height="1dp" />

<LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="0dp"
    android:layout_weight="1"
    android:weightSum="3"
    android:orientation="horizontal" >

    <LinearLayout
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:gravity="center_horizontal"
        android:orientation="vertical" >

        <TextView
            android:id="@+id/textView1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="App name"
            android:textAppearance="?android:attr/textAppearanceLarge" />

        <ImageView
            android:id="@+id/imageView1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_launcher" />
    </LinearLayout>

    <View
        android:layout_width="fill_parent"
        android:layout_height="1dp" />

    <LinearLayout
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:gravity="center_horizontal"
        android:orientation="vertical" >

        <TextView
            android:id="@+id/textView2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Coupons"
            android:textAppearance="?android:attr/textAppearanceLarge" />

        <ImageView
            android:id="@+id/imageView2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_launcher" />
    </LinearLayout>

     <View
        android:layout_width="fill_parent"
        android:layout_height="1dp" />

    <LinearLayout
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:gravity="center_horizontal"
        android:orientation="horizontal" >

        <TextView
            android:id="@+id/textView3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Markets"
            android:textAppearance="?android:attr/textAppearanceLarge" />

        <ImageView
            android:id="@+id/imageView3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_launcher" />
    </LinearLayout>
</LinearLayout>