I am trying to override the behavior of a TabActivity that has other Activities as children. I have made all of the children activities return false in onKeyDown so that the key will propagate through to the parent.However, this is not the case.The only key that is being recognized is the search key.Back, menu, and home are not being overridden.
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I've created a simple android game, based on the Lunar Lander sample, and I'm having a problem with handling key events.When the activity starts, the only keys that onKeyDown or onKeyUp get called for are the dpad up/down/left/right keys.Neither the menu, back, or dpad_center keys trigger onKey methods. However, once I've pushed one of the dpad up/down/left/right buttons, pressing the menu, back, or dpad_center keys do trigger these methods. I'm not getting any errors, or any indication of what's going wrong.It's possible that the focus is set wrong - the activity is started from a button on screen, so it could be in touchscreen mode. If that's the case, shouldn't touching the back button get me in to the right focus mode so that I can catch the event?I'm using the emulator from SDK-1.5r3.I have not been able to try this on a real phone yet.
View 4 Replies View RelatedI have a TabActivity with 3 tabs, each tab started an activity and I realise when a tab is clicked onResume is call. If I have onCreate, when app start it will launch onCreate and then onResume immediately.So, I can just get ride of onCreate in this case?
View 2 Replies View RelatedI' d like to fire up onKeyDown() event from my source code (for example from Activity). I want it, because i'd like to create program for remote keyboard, which will be PC keyboard. PC will send to mobile throw Socket message and mobile will fire up event from message in socket. Message will contain pressed key on PC keyboard. In future i'd like to create service, which will be starting on device power on .
View 2 Replies View Relatedis it possible to use onKeyDown() for an ImageButton instead of onClick() to capture the user's click on this imagebutton?
View 3 Replies View RelatedWhat I'm basically trying to achieve is custom global hot keys or in other words 'things will happen when I push certain buttons no matter which program is currently on top'.I assume a service is needed.I have a quick and dirty test that just tells me what has been pressed that will work if it is the active window.But obviously if I change window or go into a text box it doesn't work. If I stick it directly into a service (or an imputmethodservice) and launch said service nothing happens. (Some permissions required maybe?)Any suggestions where I'm going wrong?Or a better way of capturing which button is pressed?
View 1 Replies View RelatedI have a proble with onKeyDown: my activity consists in a simple textView (as header) and a ListView below it, I need to go back to the previous screen when the user presses the back button.Thus, I implemented the onKeyDown method. Everything works fine if the list contains some elements, but when the list is empty the onKeyDown method is never called.
View 3 Replies View RelatedIn the ListView, the space key is available as an onKeyUp event but not as an onKeyDown event.Is it possible to override the ListView's default response (i.e., page down) to the space key?The reason I ask is that my application's ListView scrolls to the text (including space characters) the user enters.Although I can implement my application's ListView scrolling based upon characters from onKeyUp(),that results in unwanted list jumping anytime the user types a space.
View 3 Replies View RelatedI have an activity which overrides the onKeyDown method. The documentation states the following about onKeyDown: "Called when a key was pressed down and not handled by any of the views inside of the activity." The problem I have is that this method is being called even when the views inside the activity handle it. I have a button implementing a longPress listener. What I see on debugger when long clicking on the button with the center key is that first onKeyDown from the activity is called then the longPress listener from the button gets triggered. Even for Textviews, when long clicking on it with the center select, the activity onKeyDown gets triggered before the TextView processes the longclick (and shows the Input Method context menu).
View 5 Replies View RelatedI am wondering if there is a way to override the onkeydown for an edittext view without making your own class? I just want my user to type something in and hit enter, i put up the flag so enter doesn't actually do anything now, but I want it to launch a function ive made.
View 3 Replies View RelatedI am running into an issue with the way my asynctasks are executed. Here's the problem code:
firstTask = new background().new FirstTask(context);
if(firstTask.execute().get().toString().equals("1"))
secondTask = new background().new SecondTask(context);
What I'm doing here is creating a new asynctask object, assigning it to firstTask and then executing it. I then want to fire off a separate asynctask when the first one is done and making sure it returns a success value (1 in this case). This works perfectly on Android 2.0 and up. However, I am testing with Android 1.5 and problems start popping up. The code above will run the first asynctask but doInBackground() is never called despite onPreExecute() being called. If I am to execute the first task without the get() method, doInBackground() is called and everything works as expected. Except now I do not have a way to determine if the first task completed successfully so that I can tell the second task to execute. Is it safe to assume that this is a bug with asynctask on Android 1.5? Especially since the API says that the get method has been implemented since API 3. Is there any way to fix this? Or another way to determine that the first task has finished?
I created a TabActivity with contains 3 tabs. Each tab's content sets different Intents.I would like to add a "footer" wich will appear on each tab. So I get TabActivity's FrameLayout and add it my footer view.Is it possbile to define where place the footer (with an attribute like AT_BOTTOM)? So contentTab dimensions are calculated according to this footer.
View 4 Replies View RelatedI have a TabActivity with 3 tabs. Each tab contains its own Activity. When one of the contained Activities pops up an AlertDialog, there are actually 3 dialogs created. The dialog has a Dismiss button and it must be pressed 3 times to finally dismiss the 3rd dialog.
View 2 Replies View RelatedHow can I return a value from TabActivity? It seems that the return value from tab pages vanishes and the caller always receives RESULT_CANCELED instead of RESULT_OK.
View 3 Replies View RelatedMore of a TabWidget question I guess really...
I would've tried to send a screenshot for this query if I could, but i'll try and explain.
I have 3 Tabs, each showing a separate Activity. Underneath those tabs (and above the activity display), I want to display a header. This header would probably be a Layout of some sort with a TextView inside it and a background 9patch.
Is this possible, if so how?
I am having a problem.I want to explain in detail. 1)I am Having an TabActivity with 5 tabs. I loaded content as follows.
CODE:............
And the Problem is If i want to start activity which is not specified in tabhost in above Java code,it is going out of tabactivity. ie.,It is not coming in tabactivity.
2)But i want to have all the activities under tabActivity.
I create a TabActivity from Several ListActivities.
The lists are created from a cursor load in a AsyncQueryHandler. I have got no problem to load the content of the list.
After that I run an insert in the AsyncQueryHandler, and I meet the following error. The insert is done by the listActivity.
If I run my listActivity individually and that I do my insert, everything is find. Do know why ?
CODE:.......................
I'm having some difficulties getting the TabActivity to work.
Here's the implementation of the class:
CODE:..........
The problem is that I call this class from my main activity (which is a MapActivity if it matters) and when I do the TabActivity doesn't show. It registers the click on the option menu and it even starts the intent but the screen doesn't change..it just stays on the main activity and i see in the logs that the main activity gets resumed.
I call it like this:
CODE:...............
Like I said...there are no errors (the classes called from the tabs exist of course), just no actions. I put some log commands into the onCreate function in the tabactivity (as you see) and they all get written into the log...I have no idea what I'm doing wrong here.
I'm working on Android v1.5. I want to use a TabActivity with 6 or 7 or more tabs. However, I do not want to clutter my screen with so many tabs together. Hence, I'd like to be able to show, say, 3 tabs on the screen, and to be able to scroll to the other tabs. How may I achieve this? I could not find any example for this by Googling.
View 5 Replies View RelatedCan I make TabActivity start it's childs activities for result? I need it because I can't make result code from a tab to propagate all the way up in the chain (it's reset in the TabActivity)
View 1 Replies View RelatedI have a TabActivity based class which has 3 tabs. All are ListActivities (but that's not important for this problem)
I'm updating the TabHost's TabSpec's to change the text on the tabs. This works fine and the ListActivities display correctly.
Iater on the execution flow I need to update the Text on the tabs from "Current Text" to "Current Text (3)", for example. I update the TabSpec.setIndicator() with the new text, and attempt to call invalidate() on the TabWidget (and all it's children). But the tab text refuses to update!
I have been trying to reuse the tutorial on the Android developer website about developing a TabActivity App but, unfortunately, it never worked, even when I constructed it the exact same way as it is described...
Using the debugger it seemed the problem came from the main layout.
-> setContentView(R.layout.main); //After this line the app stops.
Here is my main.xml:
CODE:.............................
I have issues with displaying a ListActivity in a TabActivity.
The super simple code below causes a crash.
CODE:.....................
I have problem with extends TabActivity.
My code is:
CODE:.................
I have a Tabbed View that displays a list in different tabs. When I click on the currently active tab (not the displayed view) I want to do something. Currently - the OnClickListener is NOT called. the OnTabChanged Listener however seems is working fine. Am I registering on the wrong View?
CODE:..................
I have a TabActivity, there are 4 tabs. In each tab I have put a single Activity. One of the activities contains a Custom List View which uses a CustomAdapter which extends the BaseAdapter.
I get this excpetion, when I try to open the tab containing this activity. It seems to be thrown at a point when probably the TabActivity is being re-drawn. Can anybody please suggest some alternatives, or solutions to avoid this problem.
Here is the stack trace.
CODE:.................
I wanna put a "List" inside a TabActivity. by google and coder's guide, my work out "direction" is to create a "TabActivity" as MAIN and "ListActivity" then add it in the "TabHost" and turn out code something like (below) and fail:
CODE:.........
I know i may need to spend more time on the BOOK and google for android development, but i also feel that the resource for android is quit scattered and not detail. (i'm a developer of C# for a few years, and it's more easilier to search for information)
I'd like to start a service from a tabactivity (I first tried in the activity launched for a tab but it seems taht there is a technical limitation).
So inside my TabActivity I defined a method named startService() which is quite simple:
> instanciate a new Intent > call the method startservice > Inside my "tabbed" activity (I mean inside a tab) I make a reference to the TabActivity and I call the method startService.
I have a TabActivity, each tab holds an activity. At some point I'd like to 'refresh' the tabs. I'd basically like to restart each activity in the tabs. I'm not sure how to do this. Calling:
CODE:.........
Removes the tabs, but the activities still seem to be in alive, in limbo. How can I get them to really quit?
I can't find the way to get ListView reference that is the part of TabActivity. I have 2 tabs - ListView, TextView. Theare no problem to access TextView using the following code in TabActivity:
CODE:........
But frame.getChildAt(0) returns com.android.internal.policy.impl.PhoneWindow$DecorView And I actualy don't know the way how to cast this reference to the object and to get its ListView child.
Tab initialization code:
CODE:.....................