如何动态地将视图添加到ViewGroup并与其子视图之一垂直对齐 [英] How can dynamically add a View to a ViewGroup and vertically align with one of its child

问题描述

我有一个ViewGroup，它有几个孩子.其中之一是TextView("+ id/text").在我的代码中，我想知道如何添加一个新的View或ViewGroup，它们将垂直对齐并位于TextView(+"id/text")下方?

I have a ViewGroup and it has a few children. And one of them is a TextView ("+id/text"). In my code, I would like to know how can I add a new View or ViewGroup which will be positioned vertically aligned and below the TextView (+"id/text")?

我遵循了以下建议，并尝试使用TableLayout.作为测试，我尝试静态布局以确保事物正确对齐.

I have followed the advice below and try to use TableLayout. As a test, I try to layout statically to make sure things are aligned correctly.

这是我的布局xml:

<?xml version="1.0" encoding="utf-8"?>
<TableLayout android:id="@+id/panel" xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:minHeight="?android:attr/listPreferredItemHeight">

    <TableRow
    android:layout_width="fill_parent"
    android:layout_height="wrap_content">

    <ImageButton
        android:id="@+id/icon"
        android:layout_width="wrap_content"
        android:layout_height="fill_parent"
        android:src="@drawable/icon"
        android:layout_column="0" />

    <LinearLayout
        android:orientation="vertical"
        android:layout_width="0dip"
        android:layout_weight="1"
        android:layout_height="fill_parent"
        android:layout_column="1">

        <TextView
            android:id="@+id/text"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"                    
            android:gravity="left" />
    </LinearLayout>
   </TableRow>
   <TableRow>
    <ImageButton
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:clickable="true"
        android:src="@drawable/icon"
        android:layout_column="1"/>
    </TableRow>
</TableLayout>

但是当我在模拟器上运行时.第二行的ImageButton与第一行的textView垂直不对齐.知道为什么吗?

But when i run in on emulator. The ImageButton on the 2nd row, does not align vertically with the textView in 1st row. Any idea why?

推荐答案

考虑将TableLayout用作ViewGroup.使用TableLayout，您可以通过编程方式在特定位置添加子项.

Consider using a TableLayout as your ViewGroup. With a TableLayout you can programmatically add a child at a specific location.

View view = new ViewIWantToAdd();
TableLayout layout = (TableLayout)findViewById(R.id.table_layout);
layout.addView(view);

将在TableLayout的底部添加一个视图.通常，您将使用TableRow作为TableView的内容，但是您可以添加任何视图.

Would add a view at the bottom of the TableLayout. Typically you would use a TableRow as the contents of the TableView, but you can add any view.

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