返回资源的 id，如果我知道资源的名称 [英] Return id of resource, if i know name of resource

问题描述

如果我知道资源的名称，我如何返回资源的 id?

How i can return id of resource, if i know name of resource?

像这样:

String mDrawableName = "myappicon";
int resID = getResources().getIdentifier(mDrawableName , "drawable", getPackageName());

推荐答案

在 MonoDroid 中，该代码转换为类似:

In MonoDroid, that code translates to something like:

 var resourceId = Resources.GetIdentifier(mDrawableName.ToLower(), "drawable", PackageName);

但是，我个人不使用 GetIdentifier，因为在 Android 中不推荐使用它 - 所以我改用反射:

However, I personally don't use GetIdentifier as it's not recommended in Android - so I use Reflection instead:

 var resourceId = (int)typeof(Resource.Drawable).GetField(mDrawable).GetValue(null);

尽管该代码肯定应该为任意字符串添加一些 try/catch 错误检查！

although that code should definitely have some try/catch error checking added for arbitrary strings!

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