Android 根据字符串动态获取资源ID

1.常用方法public int getResId(String name,Context context){ Resources r　＝　ｃｏｎｔｅｘｔ.getResources(); int id = r.getIdentifier(name,"drawable","ｃｏｍ.demo"); return id; }

 

２．使用反射（推荐，性能高）public class ResourceMan { public static int getResId(String variableName, Class<?> c) { try { Field idField = c.getDeclaredField(variableName); return idField.getInt(idField); } catch (Exception e) { e.printStackTrace(); return -1; } } }

使用方法：

int id = ResourceMan.getResId("icon",R.drawable.class);

 

转载于:https://www.cnblogs.com/cxsy/p/7999863.html