Android并获取一个id转换为字符串的视图

Question

In the Java code of an Android project if you want the reference for a view resource you can do something like:

View addButton = findViewById(R.id.button_0);

In the above R.id.button_0 is not a String. Is it possible to dynamically refer to a resource by a string, such as " R.id.button_0 "?

I'd like to refer to a button by " R.id.button_%i " where %i is replaced by some valid index.

Answer 1

int resID = getResources().getIdentifier("button_%i",
    "id", getPackageName());
View addButton = findViewById(resID);

where %i is replaced by some valid index.

The getResources() method belongs to the Context class, so you can use that directly from an Activity . If you are not inside an activity, then use a context to access: ( myCtxt.getResources() ).

Answer 2

您可以尝试将所需的所有ID放入数组中，然后使用该数组动态引用您的资源。