我有一个 Asynctask，它检索两个 int 值，我想将它们传递给 onPostExecute 以在 View 上显示它们。
这是我的代码:
public class QueryServer extends AsyncTask <String, Void, Integer> {
protected Integer doInBackground(String... serverAddress) {
Log.d("QueryServer", ""+serverAddress[0]);
MCQuery mcQuery = new MCQuery("" + serverAddress[0] ,25565);
QueryResponse response = mcQuery.basicStat();
int Onlineplayers = response.getOnlinePlayers(); //first vaule
int Maxplayers = response.getMaxPlayers(); //second vaule
Log.d("MCQuery", "" + Onlineplayers + " OnlinePlayers");
return Onlineplayers;
}
protected void onPostExecute(Integer Onlineplayers){
TextView onlinePlayersView = (TextView) findViewById(R.id.online_players);
onlinePlayersView.setText(""+Onlineplayers+"/"+ Maxplayers); //i need to pass Maxplayers to use it here
}
提前谢谢你。
最佳答案
您可以定义一个包含两个整数的 Wrapper 类:
public class Wrapper
{
public int onlinePlayers;
public int maxPlayers;
}
并用它代替 Integer:
public class QueryServer extends AsyncTask<String, Void, Wrapper> {
protected Wrapper doInBackground(String... serverAddress) {
Log.d("QueryServer", ""+serverAddress[0]);
MCQuery mcQuery = new MCQuery("" + serverAddress[0] ,25565);
QueryResponse response = mcQuery.basicStat();
int onlinePlayers = response.getOnlinePlayers(); //first vaule
int maxPlayers = response.getMaxPlayers(); //second vaule
Log.d("MCQuery", "" + onlinePlayers + " onlinePlayers");
Wrapper w = new Wrapper();
w.onlinePlayers = onlinePlayers;
w.maxPlayers = maxPlayers;
return w;
}
protected void onPostExecute(Wrapper w){
TextView onlinePlayersView = (TextView) findViewById(R.id.online_players);
onlinePlayersView.setText(""+w.onlinePlayers+"/"+ w.maxPlayers); //i need to pass Maxplayers to use it here
}
关于java - 异步任务 : pass two or more values from doInBackground to onPostExecute，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/11833978/