我要创建这样一个整齐的两列输入表单：

I want to create a neat two-columns input form like this:

我的XML布局code到目前为止：

My xml layout code so far:

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

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

        <TextView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="0.25"
            android:text="@string/lblTitle" />

        <EditText
            android:id="@+id/txtTitle"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="0.75"
            android:ems="10" />
    </LinearLayout>

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

        <TextView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="0.25"
            android:text="@string/lblAuthor" />

        <EditText
            android:id="@+id/txtAuthor"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="0.75"
            android:ems="10" />
    </LinearLayout>

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

        <TextView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="0.25"
            android:text="@string/lblPublisher" />

        <EditText
            android:id="@+id/txtPublisher"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="0.75"
            android:ems="10" />
    </LinearLayout>

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

        <TextView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="0.25"
            android:text="@string/lblIsbn" />

        <EditText
            android:id="@+id/txtIsbn"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="0.75"
            android:ems="10" />
    </LinearLayout>

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

        <View
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="0.25" />

        <Button
            android:id="@+id/btnSubmit"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="0.375"
            android:text="@string/submit" />

        <Button
            android:id="@+id/btnCancel"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="0.375"
            android:text="@string/cancel" />
    </LinearLayout>

</LinearLayout>

您可以看到，我使用的LinearLayout利用layout_weight和放大器; layout_width =0dp绝招，使两列分裂看起来整洁。在HTML code，我们可以用％宽度尺寸使用。但在Android的XML布局，没有％ - 值对layout_width。我想避免硬codeD DP值的列宽。是否有可能在Android的？

You can see that I used LinearLayout utilizing layout_weight & layout_width="0dp" trick to make the two columns division looks neat. In HTML code, we can use with % width size. But in android xml layout, there is no %-value for layout_width. I want to avoid hardcoded dp-values for column width. Is it possible in android?

到目前为止，这是最好的我能做到。现在我想调整ISBN文本框变小（50％尺寸更小的电流大小）。但我不能调整，因为layout_width的文本框的宽度必须是0dp的layout_weight工作。我也想与提交和取消按钮的大小也这样做。

So far that's the best I can do. Now I want to resize the ISBN textbox to become smaller (50% size less from the current size). But I cannot resize the textbox width since layout_width must be "0dp" for layout_weight to work. I also want to do the same with the Submit and Cancel button size.

我不知道使用的LinearLayout是在Android中整齐地创建输入表单的正确道路。难道TableLayout这更好的？我听说你不能改变TableLayout子视图的layout_width。

I wonder if using LinearLayout is a correct way to create input form neatly in android. Could TableLayout better for this? I heard that you cannot change child view's layout_width in TableLayout.

有一些人在这里推荐使用RelativeLayout的我，我尝试过，但它不支持layout_weight。

There are some people here recommend me using RelativeLayout, I tried it but it doesn't support layout_weight.

推荐答案

好吧，我发现用的LinearLayout的方式。诀窍是通过包装要调整大小的LinearLayout视图。然后查看本身的宽度可以调节使用：Android的：layout_width或Android：EMS属性

Alright, I found out the way with LinearLayout. The trick is by wrapping the Views that you want to resize with LinearLayout. Then the width of View itself can be adjusted by using: android:layout_width or android:ems property.

下面是XML code：

Here is the xml code:

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

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

        <TextView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="0.25"
            android:text="@string/lblTitle" />

        <EditText
            android:id="@+id/txtTitle"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="0.75"
            android:ems="10" />
    </LinearLayout>

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

        <TextView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="0.25"
            android:text="@string/lblAuthor" />

        <EditText
            android:id="@+id/txtAuthor"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="0.75"
            android:ems="10" />
    </LinearLayout>

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

        <TextView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="0.25"
            android:text="@string/lblPublisher" />

        <EditText
            android:id="@+id/txtPublisher"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="0.75"
            android:ems="10" />
    </LinearLayout>

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

        <TextView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:layout_weight="0.25"
            android:text="@string/lblIsbn" />

        <LinearLayout
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="0.75"
            android:orientation="horizontal" >

            <EditText
                android:id="@+id/txtIsbn"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:ems="5" />
        </LinearLayout>
    </LinearLayout>

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

        <View
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="0.25" />

        <LinearLayout
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="0.75"
            android:orientation="horizontal" >

            <Button
                android:id="@+id/btnSubmit"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:ems="5"
                android:text="@string/submit" />

            <Button
                android:id="@+id/btnCancel"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:ems="5"
                android:text="@string/cancel" />
        </LinearLayout>
    </LinearLayout>

</LinearLayout>