Android :: Overriding Dialog Preference Default Back Keypress
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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Jul 15, 2009
I use themes in my apps, which generally just extend android:Theme and then set a bunch of styles. I use dialogs made from layouts, but since I set the theme for the application, they have inherited all of the regular styles and no longer carry a border, etc. My question is: How do I say, "I want everything to use this theme which extends Theme, except dialogs, which should use this other theme that extends Theme.Dialog"? It seems like that's how things work by default but when you set the theme to your own, you lose the dialog theme!
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Jun 17, 2010
I encounter a problem with a ProgressDialog in a PreferencesActivity in my application.What I want to do is pop up a ProgressDialog after the user has changed his username or password during the check on the remote server. In the onSharedPreferenceChanged() I call the ProgressDialog.show() method. Sometimes it works fine, sometimes not at all.
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May 4, 2010
How do you get the default value of an Android preference defined in XML?
Context: I don't want to repeat the definition of the default value in both the code and the preferences XML.
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Jun 7, 2010
Wasn't sure exactly how to ask this, but here we go So, for example, I installed "Dialer One", a dialer replacement.So whenever I hit the "Phone" button, it asks how I want to complete the action. Using Dialer One, or Phone. And it gives me the option to "Use by default for this action".So, lets say I want to use Dialer One by default, but then I change my mind. How do I set it back to the default Phone.Obviously, this question applies to more than just the phone app. After writing all that I think the simple way to ask my question is- I really just want to know how to undo the 'use by default for this action' choices I may make in the future.
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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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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 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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Feb 22, 2010
I would like the users of my android app to have the option to email me the stacktrace of any uncaught exception that crashes my app. Originally I thought I would just wrap every entry point to my app in a try/catch block, but there are far too many of these even in my tiny app for this to be reasonable.So what I am really looking for is a way to specify some method to be the default handler for any uncaught exceptions.
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Oct 16, 2010
Is it possible to know when a user tries to send an sms message, and preventing him from doing so?
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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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May 12, 2010
Whenever a application needs internet and connection fails, I get a message dialog
Connection failed
This application requires network access. Enable mobile network or Wi-Fi to download data.
and two buttons, Settings, Cancel.
How do I detect there is no internet connection?
How do I popup a same dialog in my application?
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Sep 21, 2010
greetings, We are trying to produce a custom communication product that is based on android 2.2 source tree. This product has only one physical button (will be assigned as Home). Is there a way to override the functionality of this Home button so it can pop-up three button activity that simulates the actual Back, Menu and Home button on a regular android phone. Is there any specific configuration when compiling the 2.2 source tree to achieve the desired behavior without modifying the source code? If not, can anyone please provide some hints on how or which portion of the source to modify?
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Oct 27, 2010
I am trying to override the home button in my application. I am aware that this is not recommended behaviour and all links I've found about this says that it is actually not possible. However, the native dialer of HTC Sense as well as the dialer for Sony Ericsson (tested on X10 mini) both ignore the home button press on incomming calls. How can I do the samein my app?
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Aug 20, 2010
Is there a way to replace the scrollbar drawable in an application (i.e. I have a customized scrollbar view that I would like to use instead of the default gray scrollbar that comes with the Android framework). I looked through I believe all of the android attributes and none seem to support it (at least the simplest way I know how which I would assume would be setting a drawable to some android attribute). If not and say it requires a change in the framework, where would I start looking for it (in the framework)?
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Jun 16, 2010
In an struggle to fix something in drawing of Webkit engine I ended up with this code to change the canvas to my canvas on the draw method: code...
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Nov 13, 2010
I want to get the key value when user pressed any key and also perform action based on the key pressed in android. e.g. if user pressed 'A' key then I want to get that value, compare, do something.
Uses: Eclipse as IDE
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Sep 17, 2009
what the default behaviour of the back button is, as far as the Android platform is concerned.
For example, in the Contacts Application, if I am creating a contact, I just key in a name, and the press back button, the contact is saved with only the name. Fair enough. But, I then edit this contact to include a phone number and press back button. This contact is updated which now includes the phone number. I again edit this contact. This time I remove the name, as well as the phone number and press the back button. I get a message saying, "Contact doesn't exist". In this case, it deletes the contact. :(
In the mail appllication, while composing, when I press back, it goes to the drafts folder. Thats good. But, if I just have to cancel this, and I don't want this to go to drafts folder. For this, I have to open the menu, and select "Cancel".
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Dec 2, 2009
My girlfriend recently got the HTC Tattoo (running Android 1.6) and she's having major issues with the alarm on the Clock application. Whenever she sets the alarm to wake up in the morning, it doesnt go off at the desired time. There's no sound or not waking of the screen. The alarm does finally sound when the screen is woken, and this can be 20 minutes or so after the alarm *should* have sounded! It works ok if the alarm is set to go off in 5 minutes time or so, but it seems like Android forgets to ring the alarm until the screen is woken and then does it.Can anyone provide any insight into this issue? I have seen that there are other threads where the alarm doesn't work but they dont cover this behavior.
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Feb 14, 2010
How can I catch a phone keypress with the android SDK? I've been looking around for hours without finding anything.For example:
In some cases, I want to catch the message when a user presses the "hang up" button on the phone, and then discard the message before it reaches the OS.
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Jul 29, 2010
I need to invoke a keypress event in android.
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Jan 18, 2010
I was running launcher and although it was clunky, it was fine then I went back to check something on the regular home app and I accidentally hit the default key when opening home now launcher wont launch. Where so I set the default back?
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Apr 27, 2010
I developed an application to generate keypress. I find out that we can use Instrumentation object to generate. However, when I run the following code, I got these errors.
04-27 16:12:16.720: ERROR/AndroidRuntime(4406):
Caused by: java.lang.RuntimeException: This method can not be called from the main application thread 04-27 16:12:16.720:
ERROR/AndroidRuntime(4406): at android.app.Instrumentation.validateNotAppThread(Instrumentation.java: 1427)
04-27 16:12:16.720: ERROR/AndroidRuntime(4406): at android.app.Instrumentation.sendKeySync(Instrumentation.java:857)
04-27 16:12:16.720: ERROR/AndroidRuntime(4406): at android.app.Instrumentation.sendKeyDownUpSync(Instrumentation.java: 871)
@Override protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub super.onCreate(savedInstanceState);
setContentView(R.layout.main); }
@Override protected void onStart() { // TODO Auto-generated method stub super.onStart();
//press key Instrumentation inst = new Instrumentation();
inst.sendKeyDownUpSync(KeyEvent.KEYCODE_1); }
@Override protected void onStop() { // TODO Auto-generated method stub super.onStop(); }
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Nov 18, 2010
When I press the only character button a to z to perform some action in android what is key ASCII code for a to z can anybody tell how to do in android?
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Aug 5, 2010
I am struggling with the done button on the soft keyboard. I can't get the soft keyboard Done keypress to hide the keyboard. From another button, it works perfectly with imm.hideSoftInputFromWindow(editText.getApplicationWindowToken(), 0);
but the onKeyListener does not function the way I want. When I hit the editText, the soft keyboard shows up and its content is cleared from characters. The main.xml:
<EditText android:id="@+id/answer"
android:layout_gravity="center_horizontal" android:textSize="36px"
android:inputType="phone" android:minWidth="60dp" android:maxWidth="60dp" />
The Java file:
private EditText editText;...
editText = (EditText)findViewById(R.id.answer);
editText.setOnClickListener(onKeyboard);
editText.setOnKeyListener(onSoftKeyboardDonePress); ...
// method not working: private View.OnKeyListener onSoftKeyboardDonePress=new View.OnKeyListener() { public boolean onKey(View v, int keyCode, KeyEvent event) {
if (event.getKeyCode() == KeyEvent.FLAG_EDITOR_ACTION) {
// code to hide the soft keyboard
imm = (InputMethodManager) getSystemService( Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(editText.getApplicationWindowToken(), 0); }
return false; } };
private View.OnClickListener onKeyboard=new View.OnClickListener() {
public void onClick(View v) { editText.setText(""); } };
The working method using a button (in the same java file):
private View.OnClickListener onDone=new View.OnClickListener() {
public void onClick(View v) { ....
// code to hide the soft keyboard
imm = (InputMethodManager) getSystemService( Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(editText.getApplicationWindowToken(), 0); } };
When I press key no "9" the keyboard hides.
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Jun 8, 2009
I've restored my android dev phone 1 to its default factory from the settings option. Now how can i get back to my android 1.5 version ? After restoring the appearing screen contains, Android logo followed bay "Welcome to Android Dev Phone 1, Tap the android to begin" message and two buttons one is for "Emergency dial" and the other one is for "change language" .
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Jun 15, 2010
New Swype wont let you turn off vibrate on keypress? Just downloaded the newest version, (1.56.30.7625.t100) and the setting is listed, but you cannot press it, it is "Dimmed". I am an official Beta tester, and got my version from them, through E-mail. I didn't steal the .apk
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Jul 27, 2010
For some reason, and only on my Dell Vostro 1000 laptop, the Android emulator keeps thinking I have the = key pressed and continually emits a string of "=====" equal signs. This happens no matter what I'm doing in the emulator. It responds to my manual keypresses as well, interspersing them. It happens no matter which version of the Android system I run (2.1, 2.2, etc.) Strangely, it happens even running the Android emulator via a remote desktop session where the remote desktop client is the laptop and the server is another PC running the emulator. If I run the emulator on the other PC locally (not remote desktop,) the emulator functions fine!
This problem didn't occur when I first installed the SDK and as far as I know no other software has been installed since then. I tried clicking the "clear user data" from the emulator launcher and still no effect. I have also tried deleting the SDK directory and reinstalling it, but the effect is still there.
Update: I found another application that exhibits this behavior. ScummVM when opening a dialog to save the game also receives these phantom keypresses. It persists in Windows 7.
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Aug 12, 2010
Wonder what would happen? would it possibly stop overriding lock pot?
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