Java 从另一个类获取列表数组中的帖子数。但它没有'；不行？

我试图将类中arraylist中的帖子数输入mainactivity。 但这是错误的。 这是我的密码

public static  int countNotify;
    public static List<Notification> bindNotifyData(JsonElement list)
    {
        List<Notification> results= new ArrayList<>();
        JsonObject dataJsonObj = list.getAsJsonObject();
        // get data api from Json array "updates"
        JsonArray notifyJsonArray = dataJsonObj.get("updates").getAsJsonArray();
        ArrayList<Notification> notifyList = new ArrayList<>();
        countNotify=notifyJsonArray.size();
        if(notifyJsonArray != null && notifyJsonArray.size() > 0) {
            for(int i = 0; i < notifyJsonArray.size(); i++) {
                JsonObject notifyJson = (JsonObject) notifyJsonArray.get(i);
                Notification notification = new Notification();
                notification.setContent(notifyJson.get("content").getAsString());
                // Convert timestamp to Datetime
                String timestamp= notifyJson.get("time").getAsString();
                notification.setTime(ConvertTimestamp(timestamp));
                results.add(notification);
                // count numbers of the post in the list json array.
            }
        }
        return results;
    }

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但是count的值始终为0，请尝试创建类的实例

BindFetchDataHelper BindFetchDataHelper=新的BindFetchDataHelper（）

然后调用final int count=bindFetchDataHelper.countNotify

我也有同样的问题，现在应该可以了

编辑

试着这样做：

public class BindFetchDataHelper {

private static int sTest;



static {
public static  int countNotify=0;

}




public static int getcountNotify() {
    return countNotify;
}

public static void setcountNotify(int setcountNotify) {
    this.countNotify = countNotify;
}

//your others functions
}

现在要访问或设置变量：

BindFetchDataHelper bindFetchDataHelper = new BindFetchDataHelper ()

bindFetchDataHelper.setcountNotify(YOURVALUE); //set


int whatyourwant = bindFetchDataHelper.getcountNotify(); //get

---

在bindNotifyData类中。我不能将number的posts值设置为variable countnotify。有人能帮我吗？你的问题中没有足够的信息给出正确的答案。

BindFetchDataHelper bindFetchDataHelper = new BindFetchDataHelper ()

bindFetchDataHelper.setcountNotify(YOURVALUE); //set


int whatyourwant = bindFetchDataHelper.getcountNotify(); //get