Android 错误:AsyncTask 中的窗口泄漏 [英] Android Error: Window Leaked in AsyncTask
问题描述
我只是有时会出现一个错误,提示 Activity com.prueba.omnibus.EspacialTecnico 已泄露最初添加到此处的窗口 com.android.internal.policy.impl.PhoneWindow$DecorView@41e794a0
当活动完成并执行 asynctask 函数时会发生这种情况.我已经搜索过了,但我不知道可能是什么问题.
I have only sometimes an error which says Activity com.prueba.omnibus.EspacialTecnico has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@41e794a0 that was originally added here
This happens when the activity finishes and an asynctask function is executed. I have searched but I have no idea what the problem could be.
当用户点击完成"并发生错误时执行的操作.
Action that is doen when the user clicks "finish" and the error happens.
protected Dialog onCreateDialog(int id) {
super.onCreateDialog(id);
switch (id) {
case (int) DIALOG_ALERT_SALIR:
return new AlertDialog.Builder(this)
.setIcon(R.drawable.icon_warning)
.setTitle(R.string.warning)
.setMessage(R.string.confsalir)
.setPositiveButton(R.string.alert_dialog_ok,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int whichButton) {
if (batteryReceiver == null){
}
else{
try{
unregisterReceiver(batteryReceiver);
}catch(IllegalArgumentException iae){
}
batteryReceiver = null;
}
Correccion();
Parseo();
reloj.cancel();
if (Titulacion.IsReachable1(getApplicationContext())){
new CreateResultados().execute();
}
EspacialTecnico.this.finish();
try {
XMLResumen.escribirXMLResume();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}}
})
.setNegativeButton(R.string.alert_dialog_cancel,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int whichButton) {
}
})
.create();
}
return null;
}
异步任务函数错误可能是由对话框产生的吗?
Asynctask Function Could the error be produced by the dialog?
class CreateResultados extends AsyncTask<String, String, String> {
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(EspacialTecnico.this);
pDialog.setMessage("Transfiriendo...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
}
protected String doInBackground(String... args) {
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("id", Ident.getDNI()));
params.add(new BasicNameValuePair("nombre", Nombres.getNombre()));
params.add(new BasicNameValuePair("tablet", Nombres.Tablet()));
params.add(new BasicNameValuePair("fecha", Titulacion.fecha()));
params.add(new BasicNameValuePair("test", nombre));
params.add(new BasicNameValuePair("correctas", correctasString));
params.add(new BasicNameValuePair("errores", fallosString));
params.add(new BasicNameValuePair("PC", PC));
JSONObject json = jsonParser.makeHttpRequest(url_crear_resultados,
"POST", params);
Log.d("Create Response", json.toString());
try {
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
} else {
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
protected void onPostExecute(String file_url) {
pDialog.dismiss();
}
}
有没有做过什么坏事"?感谢您的帮助
Is there anything "bad" done? Thanks for the help
推荐答案
此异常通常来自活动完成时仍处于活动状态的对话框.
This exception usually comes from dialogs that are still active when the activity is finishing.
在 onPreExecute()
中,您创建了一个新对话框,但可能是这样 pDialog
已经拥有对活动对话框的引用.一些解决方法:
In onPreExecute()
you create a new dialog but it might be so that pDialog
already holds a reference to an active dialog. Some ways around it:
在创建新的之前检查
pDialog == null
.解除后为pDialog
分配一个null
.
Check for
pDialog == null
before creating a new one. Assign anull
topDialog
after dismissing it.
如果 pDialog != null
,dismiss()
在创建新对话框之前先将其关闭.
If pDialog != null
, dismiss()
it first before creating a new dialog.
(另外 super.onCreateDialog()
是不必要的,因为您没有对返回的 Dialog
做任何事情.)
(Also super.onCreateDialog()
is unnecessary as you're not doing anything with the returned Dialog
.)
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