Use resource parameter variables in Android

R. drawable. XXXX to call resource images, but this method can only directly call resources with a known name. If you want to call resources dynamically, for example, you want to call image R cyclically. drawable. file1, R. drawable. file2, R. drawable. fileXX is not convenient.

In this case, use the following code:

Num = 1;
String iconname = "file" + num;
Int resID = getResources (). getIdentifier (iconname, "drawable", getPackageName ());
Logo. setImageResource (resID );
Num ++;

 

From http://www.cnblogs.com/brucenan/archive/2011/02/10/1950938.html