如何解决错误"查看没有连接到窗口管理器"在android系统? [英] How to solve the error "View not attached to window manager" in android?
问题描述
在我的应用程序,我呼吁点击一个按钮一个异步任务,我使用preexecute方法来启动进度对话框,并onpostexecute结束一样。
我收到此错误而实施上述 - 查看未连接到窗口管理器
下面是我的异步code -
/ **
*异步任务类,通过HTTP调用获得JSON
* /
私有类questionfeed_async扩展的AsyncTask<太虚,太虚,太虚> { @覆盖
在preExecute保护无效(){
// TODO自动生成方法存根
super.on preExecute(); pDialog =新ProgressDialog(getActivity());
pDialog.setMessage(你好+使用者名称+装入你的问题进!);
pDialog.show(); }
@覆盖
保护无效doInBackground(虚空...... PARAMS){
// TODO自动生成方法存根
} @覆盖
保护无效onPostExecute(虚空结果){
// TODO自动生成方法存根
super.onPostExecute(结果);
如果(pDialog.isShowing()){
pDialog.dismiss();
}
}
我有在SOF后的问题给出了一些解决方案。他们尝试过但没有成功。
logcat的 -
java.lang.IllegalArgumentException异常:查看没有连接到窗口管理器的
android.view.WindowManagerImpl.findViewLocked(WindowManagerImpl.java:670)
在
android.view.WindowManagerImpl.removeView(WindowManagerImpl.java:351)
在
android.view.WindowManagerImpl $ CompatModeWrapper.removeView(WindowManagerImpl.java:162)
在android.app.Dialog.dismissDialog(Dialog.java:319)在
android.app.Dialog.dismiss(Dialog.java:302)在
cheerz.fragment.Profile_Fragment $ user_detail_async.onPostExecute(Profile_Fragment.java:207)
在
cheerz.fragment.Profile_Fragment $ user_detail_async.onPostExecute(Profile_Fragment.java:149)
在android.os.AsyncTask.finish(AsyncTask.java:631)在
android.os.AsyncTask.access $ 600(AsyncTask.java:177)在
android.os.AsyncTask $ InternalHandler.handleMessage(AsyncTask.java:644)
在android.os.Handler.dispatchMessage(Handler.java:99)在
android.os.Looper.loop(Looper.java:153)在
android.app.ActivityThread.main(ActivityThread.java:5034)在
java.lang.reflect.Method.invokeNative(本机方法)的
java.lang.reflect.Method.invoke(Method.java:511)在
com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:821)
在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:584)在
dalvik.system.NativeStart.main(本机方法)
块引用>
块引用>解决方案使用code:
如果(pDialog!= NULL){
pDialog.dismiss();
}的insted的:
如果(pDialog.isShowing()){
pDialog.dismiss();
}In my app, I am calling an async task on a button click and I am using onpreexecute method to start "progress dialog" and onpostexecute to end the same.
I am getting this error while implementing the above - "View not attached to window manager."
Here is my async code -
/** * Async task class to get json by making HTTP call */ private class questionfeed_async extends AsyncTask<Void, Void, Void> { @Override protected void onPreExecute() { // TODO Auto-generated method stub super.onPreExecute(); pDialog = new ProgressDialog(getActivity()); pDialog.setMessage("Hi "+userName+ "! Loading your question feed "); pDialog.show(); } @Override protected Void doInBackground(Void... params) { // TODO Auto-generated method stub } @Override protected void onPostExecute(Void result) { // TODO Auto-generated method stub super.onPostExecute(result); if (pDialog.isShowing()) { pDialog.dismiss(); } }
I There are some solution given in SOF post question. try them too yet did not success.
Logcat -
java.lang.IllegalArgumentException: View not attached to window manager at android.view.WindowManagerImpl.findViewLocked(WindowManagerImpl.java:670) at android.view.WindowManagerImpl.removeView(WindowManagerImpl.java:351) at android.view.WindowManagerImpl$CompatModeWrapper.removeView(WindowManagerImpl.java:162) at android.app.Dialog.dismissDialog(Dialog.java:319) at android.app.Dialog.dismiss(Dialog.java:302) at cheerz.fragment.Profile_Fragment$user_detail_async.onPostExecute(Profile_Fragment.java:207) at cheerz.fragment.Profile_Fragment$user_detail_async.onPostExecute(Profile_Fragment.java:149) at android.os.AsyncTask.finish(AsyncTask.java:631) at android.os.AsyncTask.access$600(AsyncTask.java:177) at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:644) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:153) at android.app.ActivityThread.main(ActivityThread.java:5034) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:821) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:584) at dalvik.system.NativeStart.main(Native Method)
解决方案use this code:
if (pDialog != null) { pDialog.dismiss(); }
Insted of:
if (pDialog.isShowing()) { pDialog.dismiss(); }
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