您好我正在firebase中保存一些值，我希望我的asynctask或方法等到firebase给我数据然后才能继续前进。有了asynctask有时它可以工作，有时它不工作。我认为可能是由于网络强度而导致的那些时候我无效
public static void connectWithHttpGetAudio(String email, String body) {
class HttpGetAsyncTask extends AsyncTask<String, Void, String> {
@Override
protected String doInBackground(String... params) {
final String paramEmail = params[0];
final String paramBody = params[1];
Firebase ref = new Firebase(Config.FIREBASE_URL);
ref.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot snapshot) {
for (DataSnapshot postSnapshot: snapshot.getChildren()) {
//Getting the data from snapshot
Data data = snapshot.child(Config.MER).getValue(Data.class);
//Adding it to a string
String mail = data.getEmail();
String password = data.getPassword();
Mail m = new Mail(mail, password);
String[] toArr = {paramEmail};
m.setTo(toArr);
m.setFrom("support@gatesshield.com");
m.setSubject("G.A.T.E.S Emergency File");
m.setBody(paramBody);
try {
m.addAttachment(Environment.getExternalStorageDirectory().getAbsolutePath() + "/future.3gpp");
if (m.send()) {
} else {
}
} catch (Exception e) {
//Toast.makeText(MailApp.this, "There was a problem sending the email.", Toast.LENGTH_LONG).show();
//Log.e("GATES", "Could not send email.", e);
}
}
}
@Override
public void onCancelled(FirebaseError firebaseError) {
System.out.println("The read failed: " + firebaseError.getMessage());
}
});
return paramEmail;
}
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
}
}
}
HttpGetAsyncTask httpGetAsyncTask = new HttpGetAsyncTask();
// Parameter we pass in the execute() method is relate to the first generic type of the AsyncTask
// We are passing the connectWithHttpGet() method arguments to that
httpGetAsyncTask.execute(email, body);
}