now i dont know which event to implement to handle checkboxes in list when i click on checkbox it expands the list.... how to distinguish list click with checkbox placed in expandable list? or kindly refer me to tutorial same as expandablelist view with checkboxes.
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I am working on developing an app and I am not sure when should I use a new activity and when should I update the existing view.
For example, lets say I have a view that shows a multiple choice question.Now, when the user selects his choices and clicks on say "Evaluate", I want to show the same question view but along with the right answers and explanations for each option. So does that mean, I should send an Intent upon a click on Evaluate or I should just update the view (i am not sure how)?
If I send an intent and show a new screen, how can the user go back to the next question without displaying the answers? If I don't create an new activity, how can I update the existing view that is already displayed?
I'm trying to create a tabbed view in my widget configure activity. I'm using a tab activity as my activity type and I have the following code..................
View 2 Replies View RelatedDo I need to create a new activity to view text written in a text box?
For example,
I want to see - "Hello"+ text written in a text box.
I have a problem with my DDMS in eclipse. In the logcat view appears only this failure: Logcat View fails with "Could not create the view: For input string: "our" "
I uninstalled and reinstalled the adt and ddms already without any change. I can use the logcat in the command line (tools- adt logcat) but this is not as comfortable as using the logcat in eclipse.
More details of this failure message are:
CODE:...............
When a TabWidget is using intents to designate the target Activity for each tab, is there any special handling of those Activities on the Activity Stack outside of the default operation? For Instance, if my app has tabs A, B, and C, and I click them in this order--A, B, A, C, A, B--how will the Activity stack change? My understanding of the default operation, if startActivity() is called each time on the intent, would have the Stack keep loading up new instances of the activities: A, AB, ABA, ABAC, ABACA, ABACAB It's hard to believe that's how it works though... Seems like it would be a waste of resources and could be endless. Can anyone tell me how this will actually work?
View 2 Replies View RelatedI would like to have expandable text categories which reveal children that are checkable entries. I've used the "simple_list_item_multiple_choice" layout for the childLayout argument of SimpleExpandableListAdapter.
View 7 Replies View RelatedI'm using an ExpandableListActivity and notice that whenever I select a group item (to expand or collapse it), it highlights briefly and then quickly un-highlights.
For my application, I want the group items to remain highlighted. I've tried requestFocus() and several other things but nothing is working.
Anyone know how to keep a selected group item (after expand or collapse) highlighted and focused?
Is there anyway to remove the default drop down icon on ExpandableList?
View 2 Replies View RelatedCan anybody tell me how to populate an Expandable List with Array List of Hash maps. Actually i have made a tree Data structure and i want to use my Data Structure to populate the Expandable List....
View 1 Replies View RelatedI currently have a tab layout with 2 tabs, one tab with a list view and one with the option make strings so I can add them in the list view. Both tabs have their own activity because this made the code much more structured, and I dont have to repeat my self later.
Lets say im in the tab that offer me to create an string, and i press the update list button, how do I update the list view without startActivity()? If i use startActivity(), it starts List.java, and instead of displaying the list in the list view tab, it takes full screen, which defies the purpose of the tab view. In other words, the startActivity() steals the focus from the tab view of the list, and sends it fulscreen.
I want to update the activity in my list view tab, without starting a new activity that goes to fullscreen, and doesnt update the one in the tab.
I want to show my next activity withing my previous activity layout "LinearLyout". But it is not working. Can any one help? I put my last activity layout reference to a global class in an static variable. My code...
View 3 Replies View RelatedI have ListViewActivity
public class SelectActivity extends ListActivity {
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.select_one_of);
SimpleAdapter adapter = new SimpleAdapter(
this,
createChildList(),
R.layout.select_one_of_childrow,
new String[] { KEY_VALUE },
new int[] { R.id.selectoneof_add_new_item});
setListAdapter(adapter);
}
// ...
}
after setListAdapter() calls I would like to execute the following code:
((TextView) getListView().getChildAt(0).findViewById(R.id.selectoneof_add_new_item)).setCompoundDrawablesWithIntrinsicBounds(0, 0, R.drawable.ticked, 0); but getListView().getChildAt(xxx) returns null and I catch NullPointerException. Where should I put mentioned above code-snippet?
Specifically, I'm curious about how they did the phone number entry part, where they can add additional phone numbers fields when the user clicks the little add button. I initially thought that was done with a ListView, and I got a ListView to work, but the ListView scrolls independently of the rest of the screen, which looks bad.
So I was wondering what the best approach for something like that is? Am I on the right track with the ListView and just missing something allowing me keep it from behaving like it's own scrollable container? Perhaps a custom AdapterView or maybe just with a TableLayout dynamically adding rows? I'm just not sure what would work the best.
I would like to know which way is the best and why between : - inflate a view from xml - create the view directly. I'm talking about performance.
View 3 Replies View RelatedI want to create a custom view.In which i want to have a background image,2 buttons,1 textview.Can anybody tell me how to start with.
View 2 Replies View RelatedCan any one help to create map view with a marker.
When we are clicking marker it should display info window.
By clicking that info window it shoul goto another layout.
i think you may get the idea of wat i'm trying to do if you look at the code:here the complication is that i cannot create another textview for another line.
s8="hello";
t12=(TextView) findViewById(R.id.solid);
t12.setText("check"+"/n"+s8);
I'm just wondering if I'm able to create a View from an external XML source. As I was reading, you must place the XML layout inside the res/layout and when you compile it, you can load the layout by typing setContentView(R.layouts.my_layout). What if I have this XML layout online (on a website) and I want to create the layout on runtime? Is there any way to do this? Or I have to parse the XML and create the layout (hard-coded)?
View 8 Replies View RelatedI'm stuck on a problem and if possible I will need help from the community. I'm not looking for a ready-made solution, but something which would help me to produce the result.
I'm looking for a way to produce a dynamic activity based on a JSONArray object.
Here an example of a JSONArray object:
[ { "name": "my checkbox name",
"type": "checkbox",
"value": "one,two,three"
}
{ "name": "my edit text",
"type": "text",
"value": ""}...]
This JSONArray could be totally random. It could have 2 text views, 3 select menus, 1 text view and so on.
The goal is to iterate over this JSONArray and create the appropriate elements within my android code.
To produce the result I've thought of a simple switch which would render one by one my different JSONArray to an android widget.
But after that how could I have access of every property of every widget rendered?
Edit: I need as well to assign an event listener on some widget as taking the GPS coordinated...
Is it possible to create a view that is bigger than the screen? I need a view that has a bigger width then the screen of the device. I use this view in a rotation animation. During the rotation the parts that were not on the screen before animating the view will become visible.
Is there a way to achieve this effect with the android framework?
I tried to set my parent layout much bigger then the screen and it is working. This will make somethings a little bit uncomfortable but it could work. The next problem now is that my layout still starts at the left side of the screen. I can't think of a method to make the layout to expand itself to the left and the right of the screen.
Is there a way i can create a view and add some textviews into it ? programmatically ? any sample code?
View 2 Replies View RelatedIn the Tab2 of TabActivity in the APIDemo example, it has this method to create a View object for each tab. code...
Can you please tell me how can I create a View for each tab from an xml layout file? For example code...
How to create multiple View in one screen?
View 2 Replies View RelatedJust have a look in the system app contacts --->add new contact, this activity have a listview with different structured views for each row. I could do this by override the "getView" method, but a problem I'm facing is edittext will lose focus when I click on it. What happened when the view enter touch mode?
View 4 Replies View RelatedCan anyone suggest a good tutorial about how to create custom view?
View 1 Replies View RelatedI have a view that is round and hovering above (-> in z-axis direction coming out of the screen) the main content. When the someone taps the screen I want either the main content to be selected or the view hovering above, when it covers the main view.
So far that works perfectly. I have a round shaped item on a transparent canvas. Meaning you can see everything of the background that is outside of that circle. However, you cannot select it, because it is still the hovering canvas, just with a transparent paint.
Now I'm wondering, to solve this issue, if it is possible to make the view/canvas itself round shaped?
Update
I added an image for better explanation what I try to achieve.
Here's my use case: The app starts at a login screen. You enter your credentials and hit the "Login" button. Then a progress dialog appears and you wait for some stuff to download. Once the stuff has downloaded, you are taken to a new activity. Exactly which activity you are taken to depends on the server response.
Here's my problem: If you go HOME during this login/download process, at some point in the near future your download will complete and will invoke startActivity(). So then the new activity will be pushed to the foreground, rudely interrupting the user. I can't start the activity before I start the download, because, as I mentioned earlier, the activity I start depends on the result of the download.
I would obviously not like to interrupt the user like this. One way to solve this is to refrain from calling startActivity() until the user returns to the app. I can do this by keeping track of the LoginActivity's onStop() and onRestart(). But I'm wondering, is there any way to create the activity while it is in the background? That way the user returns to the app and he is ready to go. otherwise he would have to wait for the new activity to be created (which could take some time because the new activity also has to download and display some data). Update: Guess what? I LIED! I could have sworn that starting this activity was causing it to come to the foreground, but I went back to test it again and the problem has magically disappeared. I tested in both 1.6 and 2.0.1 and both OSes were smart enough not to bring a backgrounded task to the front.
Once upon a time (Android 1.5 and earlier), when you would create a new project using the "android create project" command, it worked well -- you had an app that could immediately be compiled and installed.
Now, though, when you run that command, a number of places need fixing up, where ACTIVITY_NAME shows up instead of the activity name specified...depending on the API level you target.
For example:
CODE:............
leaves ACTIVITY_NAME in:
CODE:..........
If I change the target to 1, 3, or 4, it works as expected. If I have the target as 2 or 5, it gives me the ACTIVITY_NAME.
So, I'm curious to know if:
a. This is a bug, or
b. I'm missing something (despite this example coming straight from the docs), or
c. I've lost my marbles
I've gone through a few guides and tutorials, and they're quite clear on how to start an activity (with intent). However, how do I create a new activity in Eclipse? I can probably do this by hand by then I have to modify the R file which is auto-generated. I can create a new XML layout.
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