Android :: Handling Back Key While Showing A Dialog
Oct 30, 2010
In my application i prompt for password in onResume(), and Before this i have already created view in onCreate() so it is compulsory for user to enter password But if user press the Back key password dialog get disappered and user easily use the application. When dialog is Being shown,if get key event for Back key then i can easily handle this for that purpose i implemented onBackPressed()/onKeyDown() methods of Activity But none get event for this key when dialog is on screen after dialog disappered these methods get event for Back key.
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Sep 2, 2010
I have a really weird problem, which I am unable to debug so far. thing is. my app needs to download something to work. So in the beginning of the onCreate() method, I check if that something is already downloaded. If not, I pop a dialog up asking the user to download it.My dialog is shown and I am clicking, so aManager.install() is called. I am passing the context because that aManager.install() pops up a ProgressDialog to show downloading progress and spawns a new thread in which everything is downloaded. So obviously before creating my dialog I make a Handler to receive the response from that aManager.install(). And the response MAY vary, because for example the internet connection isn't available (Exception raised and catched and listener called with different code).Now, when that happens (Exception) I would like to call another dialog saying "something went wrong, would you like to retry?" so another call to showDialog(DIALOG_REINSTALL) (this time with another code).thing is the showDialog() gets called (I can verify this by logging) but the dialogs doesn't show up. Instead my application JUST HANGS Does someone have a clue why it's doing this? No exception raised, absolutely nothing from logcat, I can't tell WHERE it's hanging...just see that the method is called and the dialog should be displayed.
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Nov 19, 2009
I never look forward to handling Android dialogs, maybe someone can point me to a better way of doing it than i'm doing right now. Say I have a dialog which has one text field in it, and OK and Cancel buttons. i make the dialog with AlertDialog.Builder, and set click listeners on the buttons and dismiss listener on the dialog. When the dismiss listener fires, can I tell which button caused the dismiss?
I don't see how, so in the click listener, I set a member flag according to which button was clicked. Then in the dismiss listener, I then check the flag to see whether to proceed or not. Arather backward process. Am I missing something? The other issue I have with Android's dialogs is that if the contents fail validation and the dialog needs to be re-presented, I have to re-show it in the dismiss listener. In every other environment known to man, dialogs are (somewhat) modal, so the dialog stays up unless expressly dismissed by code. IMHO, the latter makes more sense.
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Sep 29, 2010
I am using an ActivityGroup to spawn multiple activities and switch views from within the same tab in a TabActivity.
When I press the back key this method is called inside my ActivityGroup
CODE:..............
This method allows me to keep a stack of my activities and go back to the previous one when the back key is pressed.
This is working well on all my nested activities, except on a ListActivity where a press on the back key will simply exit the application.
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Feb 7, 2010
I encountered a message like below when opening a custom dialog through menu option.
02-07 16:37:45.478: ERROR/BACKGROUND_PROC(1007): android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application
Using the latest sdk with 1.5 emulator.
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Apr 25, 2010
I am developing one application for facebook. In this application when user click on login button i start WebView acitvity there user can login. On success of login i start activity from where user pressed that login button.
Now My problem is On main activity I get all friends list from facebook. That takes some time. So i want to show ProgressDialog, however that progress dialog is not showing up in main activity.
Here is my code.
On Login success i am using this method:
CODE:...................
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Jun 10, 2010
I have looked at the Android API and other posts here on stackoverflow, but have not been able to figure this out.
My app downloads files to the sd card. I would like to pop a "loading..." dialog while the file is downloading and then have it disappear when the download is finished. This is what i came up with using the android API:
CODE:.............
However the dialog doesn't actually show. when i debug it, it claims that it is showing, but it is obviously not on the screen.
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Nov 9, 2009
I want to use the speech to text api in android, but I don't want to be slowed down by those dialogs. Is it possible to use the functionality without them?
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Sep 12, 2010
I've got an app that responds to an Alert - and I really need to show an alert with a password entry before going on to the next screen; the trouble is I don't seem to be able to show a dialog from a broadcast receiver -- so how can I show a dialog password entry upon receiving an alert?
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Sep 24, 2009
I want to display Dialog Box when the application is launched before loading and launching the activity.
or you can say I want to show the dialog on launcher after the launch of my application.
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Aug 18, 2010
I'm wondering how I can create a custom pop-up like the one in the screenshot below (borrowed from the Swype keyboard), where I can have a couple of buttons, which each commit a string to the currently "connected" TextView (via a InputConnection). Please note: this is an InputMethodService and not an ordinary Activity. I already tried launching a separate Activity with Theme:Dialog. However, as soon as that one opens I lose my focus with the TextView and my keyboard disappears (and with that my InputConnection is gone).
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Sep 8, 2009
In my current application I want to show a dialog having "Force Close" and "Report" option at the time of Unhandled Exception. Could anyone please let me know how to have this dialog? right now if I change default Exception Handler to mine It gets control but I am not able to show any dialog after that. I guess UI thread is already closed by the time handler gets control.
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Apr 24, 2010
I've got an Android activity which grabs an RSS feed from a URL, and uses the SAX parser to stick each item from the XML into an array. This all works fine but, as expected, takes a bit of time, so I want to use AsyncActivity to do it in the background. The line items = parser.getItems() works fine - items being the arraylist containing each item from the XML. The problem I'm facing is that on starting the activity, the ProgressDialog which i create in onPreExecute() isn't displayed until after the doInBackground() method has finished. i.e. I get a black screen, a long pause, then a completely populated list with the items in. Why is this happening? Why isn't the UI drawing, the ProgressDialog showing, the parser getting the items and incrementally adding them to the list, then the ProgressDialog dismissing?
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Oct 28, 2010
If user repeatedly presses back button, I need a way to detect when they are on the very last activity of my task/app and show "Do you want to exit?" dialog befor they return to Home Screen or whatever previous app they had running.
Its easy enough to hook onkeypressed(), but how do I figure out that this is a "last" activity in the task?
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Jun 15, 2010
I am writing a custom component (derived from a relative layout) which has to show a dialog. Is there a way to do this using callbacks like oncreatedialog or onpreparedialog? if not: if i have to create the dialog outside oncreatedialog, i have to "attach it to an Activity with setOwnerActivity(Activity)". How can the custom component access the activity it is used in, when it is used in the activity's xml-layout and not created from code?
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Jul 7, 2010
By default, when in DialogPreference you press back button, it mimics that you've pressed NegativeButton. I'd like to override that but can't find an easy way except to recreate DialogPreference from scratch (which at the moment seems like an overkill), because I'd like that PositiveButton set something, NegativeButton to unset something, and back key to leave things as they were (i.e. to not unset something). I've even tried to override showDialog() but: a) its not simple, b) I don't think I should mess too much with internals of OS supplied code like a bunch of private "m" variables.
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Jun 17, 2010
How to disable the back button when the alert box is on the screen I used onKeyDown function in the activity.....but when back button button is clicked it first cancels the dialog box and goes to our activity...I want both either both activity and dialog box closed when clicking the back button or disable the back button when the dialog box is shown...
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Nov 3, 2009
I have a weird problem on progress dialog: I have 2 views: Login View and say, Display View. In Login View, when I click the 'Login' button, a progress dialog is created (new ProgressDialog(...)), shown and stored in a variable 'mProgressDialog'. After login, the dialog is dismissed and some information are displayed in Display View (Login View hides). Now I want to display another progress dialog when 'Update' button is clicked and when the update is done, dismiss the dialog and display new information. So I use: the Display View for a blink and then shows the Login View. I tried to change the view etc. but same problem happens over and over again. So I am thinking it might because one activity can only be assigned to ONE progress dialog and no matter how you re-create it you still get the same progress dialog. And the dialog is linked to a certain view which will be shown automatically when the dialog dismisses.
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Oct 8, 2010
When my android activity pops up a progress dialog, what is the right way to handle when user clicks the back button?
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Oct 7, 2013
i have go locker and it works fine until now whenever i lock my phone it locks but then the display keeps coming back on showing the lock screen. But if i uninstall it my reg works fine and i checked my settings over n over.
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Apr 12, 2010
I have a dialog with edittext for input. when i click yes button on dialog, it will validate the input and then close dialog. However, if the input is wrong, i want to remain in the same dialog. every time no matter what input it is, the dialog always automatically close when i click button. How can i disable this. By the way, i use PositiveButton and NegativeButton for the button on dialog
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Jan 25, 2010
I am having a problem about repeating Login dialog (an AlertDialog) and progress dialog, coordinating with http thread. I suppose repetitive Login dialog (if fail, continue) handling should be common and straightforward. I guess my approach must be wrong somewhere. I already spent 2 days on this and am desperate. So please help. User starts the app, the main activity starts.Show a login dialog (generated by the main thread, i.e. from on Create. The main thread then starts a wait_thread, which will wait for http to return data and check the data and decide what to do.After user input username/password and press login, a progress dialog starts.The progress dialog starts an http_thread to talk to the server and get replies. Once done, it will notify the waiting thread.If the user type in the right username password first time, the code works fine.But it always fail for 2nd time Login, i.e. When first login fail(wrong username/ password),the wait_thread will generate 2nd Login dialog to let user repeat the login process. But after user hit the login on this 2nd Login dialog, the system always crashes.
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Dec 29, 2009
I want to make a custom Dialog,because i donot like it"s style,i want get a rounded rectangle rather than rectangle . i know to implement it by theme in Manifest.xml . for example :the code
at activity write:
CODE:............
My question is how to implement this Similar result by extends dialog or alertDialog.
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Aug 13, 2010
I'm trying to get my list view to open up an alert dialog to display information when a person clicks on a selection. I have been trying several different things on the Google Developers website that have to do with this but have yet to come up with a result. Here is my code. package table.periodic;
import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.content.Context; import android.os.Bundle; import android.view.View; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.ImageView; import android.widget.ListView; import android.widget.AdapterView.OnItemClickListener;...........
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Apr 14, 2010
how to create an Alert dialog in a dialog? is it possible to create? My requirement is to show mulitple dialogs simultaneously. I tried creating with the following code snippet onClick of a Button in the first Dialog and got an "BadToken" exception from WindowManager: "Unable to add window -- token null is not for an application"
AlertDialog.Builder builder = new AlertDialog.Builder(getContext()); builder.setTitle("Test Title"); builder.setOnCancelListener(new Dialog.OnCancelListener() { public void onCancel(DialogInterface dialog) { dismiss(); } });
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Sep 23, 2010
I am trying to run example of facebook android sdk , in that i have run stream example to fetch the
data from facebook. Now hen ever i click on "fconnect" button to log in into facebook i am getting following dialog box. so is it possible to replace this dialog box with following to make it simple ?
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Sep 2, 2010
Android device is much slower and have much lower memory compare to PC/server, So what is the best way to handling XML in Android? And I have a set of very complex xml needed to parse. both SAX or DOM will cause too much code. Anybody have good suggestion? I want to make it clean and fast.
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Aug 9, 2010
I read somewhere not to exception handle when developing in Android, is that true?
If one does need to exception handle are there any logging tools for 2.1 and above?
If shouldn't exception handle, why is it not recommended to at least use the below?
try {body-code} catch (exception-classname variable-name) {handler-code}
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Apr 6, 2010
I'm using a PostMethod, and wondering what try/except handling I should use.
The exception handling here seems to work okay in most scenarios, but is there anything I might be missing? In particular, I'm wondering whether this handles the network connection going down midway through the upload.
CODE:...................
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Jan 1, 2010
I've been wondering if Handcent is supposed to move all my pictures to the top of each thread? And is there anyway to save the pictures with Handcent?
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