Android的微调如何显示下拉列表单选按钮 [英] How Android Spinner displays radio button in dropdown list

问题描述

我要编写自定义适配器，它能够显示自定义视图，我想，如果标准单选按钮在下拉列表中可见。我大致知道如何编写自定义适配器，但我不知道如何从标准的下拉列表视图preserve收音机这在微调是可见的：

  =微调微调新（CTX）;
ArrayAdapter＆LT; T＆GT;数据=新ArrayAdapter＆LT; T＆GT;（CTX，android.R.layout.simple_spinner_item，tclass.getEnumConstants（））;
data.setDropDownViewResource（android.R.layout.simple_spinner_dropdown_item）;
 

如果最后一行被注释然后不使用的单选按钮。
我不知道，如果 simple_spinner_dropdown_item.xml 布局包含的TextView和单选按钮。

• 如何获取 simple_spinner_dropdown_item.xml ？


• 如何单选按钮微调管理？那是在内部还是我需要实现它customadapter？

我一直在寻找在 ArrayAdapter ， SimpleAdapter code，但也没有办法。<源/ p>

解决方案

下面是定制微调的例子...

的http://easyandroidtutorials.blogspot.in/2012/05/custom-spinner-in-android.html

<一个href=\"http://androidexample.com/Custom_Spinner_With_Image_And_Text_-_Android_Example/index.php?view=article_discription&aid=84&aaid=107\" rel=\"nofollow\">http://androidexample.com/Custom_Spinner_With_Image_And_Text_-_Android_Example/index.php?view=article_discription&aid=84&aaid=107

http://www.edureka.in/blog/custom-spinner -in-的Andr​​oid /

的http://stephenpengilley.blogspot.in/2013/01/android-custom-spinner-tutorial.html

的http://androidgeisha.blogspot.in/2011/01/custom-spinner-row-layout-custom.html

http://karanbalkar.com/2013 / 07 /教程39创建定制微调功能于安卓/

I want to write a custom adapter which is able to display custom View and I want if standard radio buttons are visible in dropdown list. I know roughly how to write a custom adapter but I am not sure how to preserve radio from standard drop-down-view which is visible in spinner:

spinner = new Spinner(ctx);
ArrayAdapter<T> data = new ArrayAdapter<T>(ctx, android.R.layout.simple_spinner_item, tclass.getEnumConstants());
data.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

If the last line is commented then the radio button is not used. I am not sure if simple_spinner_dropdown_item.xml layout contains textview and radio button.

• How to obtain simple_spinner_dropdown_item.xml?
• How are radio buttons managed in spinner? Is that internally or do I need to implement it in customadapter?

I was looking in source of ArrayAdapter, SimpleAdapter code but there is nothing about it.

解决方案

Here is the examples for custom spinner...

http://easyandroidtutorials.blogspot.in/2012/05/custom-spinner-in-android.html

http://androidexample.com/Custom_Spinner_With_Image_And_Text_-_Android_Example/index.php?view=article_discription&aid=84&aaid=107

http://www.edureka.in/blog/custom-spinner-in-android/

http://stephenpengilley.blogspot.in/2013/01/android-custom-spinner-tutorial.html

http://androidgeisha.blogspot.in/2011/01/custom-spinner-row-layout-custom.html

http://karanbalkar.com/2013/07/tutorial-39-create-custom-spinner-in-android/

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