I create a CursorAdapter to provide data for my ListView.
I implement the bindView() method to show data in a row of my Listview.
But at the end of my bindView, I add an clickListener to it. But when I run it on emulator, I don't see any print statement.
Can you please tell me how to add event handling in a row in ListView? code...
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I'd like to know how the key event is handled in Android platform.From 'when user type key 'a' on software keyboard',To 'view draw the character 'a' on itself'.Probably, the key event is generated by IME,And it will be sent to parent view,Finally, view(such as EditText) displays chracters.Please somebody explains about these entire key event handling process.
View 2 Replies View RelatedI am a new bee to android. I wanted to know how to recieve a rotation event ( change in orientation, vertical to horizontal ) in my Activity or my service. Please anyone answer me.
View 5 Replies View RelatedI like to know using which version of Android SDK we can develop multi touch handling. Does Android SDK 1.6 support multi touch? If yes, can i get some sample code, where i can have multiple imagebuttons placed on screen and clicking on all the imagebuttons at a time should detect multiple touch events?
View 2 Replies View RelatedIn android, most event listener methods return a boolean value. What is that true/false value mean ? what will it result in to the subsequence events ?class MyTouchListener implements OnTouchListener {@Override public boolean onTouch(View v, MotionEvent event) {logView.showEvent(event);return true;}Regarding to the above example, if return true in onTouch method,I found every touch event(DOWN,UP,MOVE,etc) has been captured according to my logView. On the contrary,if return false, onely the DOWN event been captured. So it's seemd that return false will prevent the event to propagate. Am I correct ?Furthermore, in a OnGestureListener, many methods have to return a boolean value too. Do they have the same meaning ?
View 3 Replies View RelatedWhich method in ListView is handling the fling action (up and down)? I look at the source of ListView, I don't see a GestureDectector there.
View 10 Replies View RelatedI use ListView.(Adapter is a Custom Adapter) *extends BaseAdapter. I wanto to get selected item, when I click the item in the list. now, I use OnItemClickListener, OnItemSelectedListener. but, This program doesn't do the operation for which I hope. not click. I want to get a selected Item in the list, when like mouse_down. (Moment when color of item in list changed?)
View 3 Replies View RelatedI am having a List of Item which I retrieved from my Sqlite DB. I wants to set Click event for each n every item. How I can customise this event based on Item clicked? Be Descriptive. I am a Begineer. The method tht I used to fill data in my List............
View 1 Replies View RelatedI am using a list view containing check boxes....could u please help me how to identify which check box has the user selected
basically I want different functions to be performed when checkbox is clicked or listitem is selected similar to android alarm clock..
I have one custom Listview with a button, now i want to click the button and open another class. below is my code, but have error, any one can help one it? Code...
View 3 Replies View RelatedI have a ListView with a setOnItemClickListener. I am trying to prevent the user from pressing an item repeatedly but can't seem to get it to work. I have tried the following. Code...
View 3 Replies View RelatedHere is my problem : I have a view containing a listView. And each row of this listview is composed of a linearLayout, itself composed of three textview and a gridView. Here is a summary of my layout for one row:
......
I want to perform an action when the user click anywere on an item of the listview. So I try these two approaches on the listview : - myActivity.getListView().setOnTouchListener(new View.OnTouchListener () {...}) - myActivity.getListView().setOnItemClickListener(new AdapterView.OnItemClickListener() { ...}) And here is the trouble : - when I click on the textview, it nearly works : the touch listener is called, but not the clicklistener - when I click on the gridView it doesn't work....the event is just dispatched to the element of the gridView.............
In 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 RelatedThis should be a simple question because I couldn't get the answer from Google . I have ListView in a LinearLayout . I need to handle the click event to allow user click on the LinearLayout to trigger some function. I try to add onClickListener to the LinearLayout , and it works only when I click outside of the ListView . How do I let the click event on ListView propagate automatically to be handled by the Listener of the LinearLayout?
View 5 Replies View RelatedI want to delete an item from a ListView, to which have attached a GestureListener. I have overridden the method onFling for that GestureListener to return true of false based on my criteria.
But I don't know how to fetch the last selected item in the ListView. Fling does not select an item in ListItem.
i have add a footview in listview with this code...
View 3 Replies View RelatedI have a ListView whose rows are formatted by me. Each row has a mix of ImageView and TextView. I have also implemented my own adapter and am able to draw each row through it.
Now, I would want something like this-
User clicks on an ImageView (not anywhere else on the row, but only this ImageView should respond to clicks)
I get to know the position of the row whose ImageView was clicked.
I have tried many things for this and have wanted my code to be as efficient as possible (in terms of overkill).
Currently i can capture the click event on that particular ImageView only, but I can't know which row was clicked.
I have provided an attribute in the Row XML like this-
CODE:..................
And in my code, I have a method like this:
CODE:..............
I can get the parent row (perhaps) but am not sure how to go further from here.
i have problem to get event of list view field when i am adding checkbox in listview. my problem is to get the status of check box form every row of the list view, either it is check or not, according to that i have to do operation.
View 3 Replies View RelatedAs a work around to the issue where a list item isn't focusable if it has a focusable child item (a comment by Romain Guy was that this was intended behavior, for accessibility reasons) I simply filled the listItem with two children, each of which is focusable - There's nowhere to directly touch on the listItem anymore, just it's children.
For the most part this is a useable workaround, effectively invisible to the user, except for one thing- Although you can scroll by swiping without issue, touching to *stop* the scroll no longer works- I imagine because the child item is capturing the touch event and not passing it to the parent listitem, at least while the scroll is in effect.
Is there a known workaround for this? Perhaps someway to "pass the baton" of the touch event back up to the parent listItem, or a way to change my design?
BTW- I know there's some built-in functonality for single/multiple choice listviews (checkbox listviews) - That doesn't actually help in my case. The app is a contact list, and the row children are a relativelayout (populated with contact info) and a clickable phone icon (a one-touch dial for the contact), which needs to be visible or invisible depending on whether the stored contact has a phone number.
I use onLongClick and onClick events of a button to get user inputs. Whenever; the user long click and triggers onLongClick event, the onClick event is also triggered. I couldn't find my problem. The code of two methods are shown in below: Code...
View 2 Replies View RelatedI hope there is a way to resolve this or bye bye hero.
View 10 Replies View RelatedAndroid 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.
View 4 Replies View RelatedI 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}
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:...................
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?
View 2 Replies View RelatedFrom the documentation regarding the android:configChanges='orientation' attribute of the activity tag in the manifest:
Using this attribute should be avoided and used only as a last-resort. Please read Handling Runtime Changes for more information about how to properly handle a restart due to a configuration change.
Why does it say this?
In the case of threads and networking requests via a service API library, a request could be made with a reference to the original Activity, and then an orientation change could occur, leaving the thread pointing to the old Activity.
While this can be fixed, it's tedious and ugly compared to just handling the configuration changes yourself.
Why should it be avoided?
I guess I should also ask: would this be an acceptable reason for doing the orientation configuration changes yourself?
I'm trying to do is draw circles around two points that are being touched, and as the fingers drag along on the screen, have these circles follow each finger.
However, I'm getting some weird behavior that I can't figure out. So when I place two fingers on the screen I get my circles no problem. When I drag around with the two fingers everything works like I want it. However, if I lift the first finger, everything stops redrawing, and the second finger that is still on the screen stops being tracked. If I place the first finger back on, everything behaves good again. I figure I must be handling the two fingers poorly.
Also, if I have two fingers on the screen, and I lift and touch the second finger, everything behaves well. It's only in the case where I have two fingers and I lift the first one do I see a problem.
CODE:........................
I know how to use handlers to update UI elements such as progress bars toasts etc. The problem I am having is when the context goes away such as the user pressing the back button or the Activity finishing for some reason. This causes my application to crash often. I tried using
getApplicationContext()
(Thinking that this would be available throughout my entire application) but this did not work, ever - instead my application crashed! I put try catch blocks around all UI update code, this works but is it necessary? What is the bast way to handle this?
I have some required try/catch statements in my application that in my testing never get called. I have sent them up with:
Log.e("messaage", e.toString());
For my debugging and now that I'm ready to release I am not sure if I should take that out or not. I see in android market you can get error/crash reports and while I do not expect my app to catch any errors, I would like to know if that happens and wondering if I need specific syntax for that. My question is what should I do in the catch statement for these errors? I'm already handling the error from a user standpoint...
I want to handle key press and long key press for the key code KEYCODE_CALL(dial button). can any one suggest me how this in android 1.5(API level 3).
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