Resources res = getResources(); final String packageName = getPackageName(); int imageResId = res.getIdentifier("ic_launcher", "drawable", packageName); int imageResIdByAnotherForm = res.getIdentifier(packageName + ":drawable/ic_launcher", null, null);   int musicResId = res.getIdentifier("test", "raw", packageName);       int notFoundResId = res.getIdentifier("activity_main", "drawable", packageName); Log.i(LOGTAG, "testGetResourceIds imageResId = " + imageResId               + ";imageResIdByAnotherForm = " + imageResIdByAnotherForm               + ";musicResId=" + musicResId               + ";notFoundResId =" + notFoundResId);

I/MainActivity( 4537): testGetResourceIds imageResId = 2130837504;imageResIdByAnotherForm = 2130837504;musicResId=2130968576;notFoundResId =0

**      * Return a resource identifier for the given resource name.  A fully      * qualified resource name is of the form "package:type/entry".  The first      * two components (package and type) are optional if defType and      * defPackage, respectively, are specified here.      *      * <p>Note: use of this function is discouraged.  It is much more      * efficient to retrieve resources by identifier than by name.      *      * @param name The name of the desired resource.      * @param defType Optional default resource type to find, if "type/" is      *                not included in the name.  Can be null to require an      *                explicit type.      * @param defPackage Optional default package to find, if "package:" is      *                   not included in the name.  Can be null to require an      *                   explicit package.      *      * @return int The associated resource identifier.  Returns 0 if no such      *         resource was found.  (0 is not a valid resource ID.)      */     public int getIdentifier(String name, String defType, String defPackage) {         try {             return Integer.parseInt(name);         } catch (Exception e) {             // Ignore         }         return mAssets.getResourceIdentifier(name, defType, defPackage);     }

/**      * Retrieve the resource identifier for the given resource name.      */     /*package*/ native final int getResourceIdentifier(String type,                                                        String name,                                                        String defPackage);