的ListView与含有的LinearLayout行 [英] ListView with rows containing a LinearLayout
问题描述
我想实现使用ListView控件,它包含一个内置的LinearLayout行的列表。这是的LinearLayout组成的复选框,一个TextView的。行的布局被命名tasks_list_row.xml:
I'm trying to implement a list using the ListView, which contains rows built with a LinearLayout. This LinearLayout is composed of a checkbox and a textview. The layout of the row is named tasks_list_row.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<CheckBox android:id="@+id/checkbox"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView android:id="@android:id/text1"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</LinearLayout>
然后从我的code初始化我名单是这样的:
Then from my code I initialize the list this way:
final String[] items_task = new String[] { "one",
"two",
"three" };
setListAdapter(new ArrayAdapter<String>(this, R.layout.tasks_list_row, items_task));
但后来我得到一个错误:
ArrayAdapter - 你必须提供一个资源ID为一个TextView
我尝试指定TextView的ID是这样的:
I then try to specify the TextView id this way:
setListAdapter(new ArrayAdapter<String>(this, R.id.text1, R.layout.tasks_list_row, items_task));
但我得到一个未找到资源错误(R.id.text1存在于R.java文件)。
But I get a Resource not found error (R.id.text1 exists in the R.java file).
我应该怎么办?
推荐答案
在这种情况下,你需要使用android.R.id.text1,因为你引用内置的Android的ID(@android:ID是线索)。
In this case, you need to use android.R.id.text1, as you're referencing the built in android ID (@android:id was the clue).
setListAdapter(new ArrayAdapter<String>(this, R.layout.tasks_list_row, android.R.id.text1, items_task));
有没有太大的优势,这样做,除非你使用内置的布局,比如android.R.layout.two_line_list_item
There isn't much advantage to doing this, unless you're using built in layouts, such as android.R.layout.two_line_list_item
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