细节修复、部分bug修复

app/src/main/java/com/gh/common/util/RandomUtils.java

@@ -17,7 +17,7 @@ public class RandomUtils {
             if (i == 0) {
                 index[i] = random.nextInt(size);
             } else {
-                random(random, index, i, size);
+                index[i] = random(random, index, i, size);
             }
         }
         return index;