如何从Firebase数据库检索随机值？

要解决此问题，请使用以下代码行：

long childrenCount = snapshot.getChildrenCount();int count = (int) childrenCount;int randomNumber = new Random().nextInt(count);

然后使用

for

int i=0;String themeTune; //Your random themeTune will be stored herefor (DataSnapshot snap : snapshot.getChildren()) {    if(i = randomNumber) {        themeTune = snap.getValue(String.class);        break;    }    i++;}plysound();