通过Android中的名称访问绘图 [英] Accesing to a drawable through its name in Android
问题描述
我正在开发一个处理SQLite数据库的应用程序.我只是从中获取一些信息，并将其显示在CardViews列表中.每个CardView基本上都会显示一个人的姓名，年龄和照片.
I'm developing an app thant handles a SQLite database. I just get some information from it and show it in a list of CardViews. Each CardView basically displays the name, the age and a picture of a person.
一切正常，但是现在我已经实现了数据库，对此我有些疑问.
Everything is working fine, but now that I have implemented the database, I have some doubts about it.
我只需要通过文件名访问绘图文件.到目前为止，我一直在使用R.drawable id进行手动操作，因此可以检查它是否在工作.就是这样:
I just need to access to the drawables through the name of the files. So far I've been working manually with the R.drawable id, so I could check if it was working. Just like this:
人员p1 =新人员(姓名，年龄，R.drawable.person1)；
Person p1 = new Person(name, age, R.drawable.person1);
然后我将那个Person添加到Persons列表中，然后将此列表作为参数传递给Adapter.
And then I just add that Person to a List of Persons, to then pass this List as a parameter to the Adapter.
基本上，人名和图像名完全相同.因此，既然我从数据库中获得了所有人员(列表中)，我想从文件名中获取可绘制对象，但是现在我仅是如何通过图片的R.drawable.id来获取它..
Basicaly, the name of the person and the name of the image is exactly the same. So, now that I get all of the persons from the database (in a list), I'd like to get the drawable from the file name, but I only now how to get it through the R.drawable.id of the picture.
我想将R.drawable属性从 int 更改为 String ，这样我就可以使用想要的方式.
I'd like to change the R.drawable attribute from an int to a String, so I can access the way I want.
我的问题是，是否有做类似 getDrawable("name_of_the_file.png"); 之类的东西?还是有什么方法可以通过文件名获取R.drawable.id?
My question is, is there anyway to do something like getDrawable("name_of_the_file.png"); or anything similar? Or is there any way to get the R.drawable.id through the name of the file?
谢谢.
推荐答案
无论如何都要做类似getDrawable("name_of_the_file.png")的事情；或类似的东西?
is there anyway to do something like getDrawable("name_of_the_file.png"); or anything similar?
否.
或者有什么方法可以通过文件名来获取R.drawable.id?
Or is there any way to get the R.drawable.id through the name of the file?
Call getIdentifier() on a Resources object to retrieve the numeric R value given the package, resource type (e.g., "drawable"), and resource name (e.g., "example").
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