I'm am trying to learn how to create LayoutGroups. For a start, I created MyLinearLayout which is supposed to force all children into same width (yes, there is layout_weight, but that's beside the point.
View 2 Replies
I have problem in displaying content in Linearlayout, how to extend layout height.when large number layout used for displaying content..
View 1 Replies View RelatedIf I have 2 LinearLayouts split %50/%50 everything is fine. Weights are 1 and 1. As soon as I add a TextView inside the top LinearLayout, it stretches that layout. I use "wrap_content" as the documentation says I should when it comes to weights. As you can see the red and green should be split evenly and text on grey background should be inside red box.
Here is the code:..............
Now if I switch to "fill parent" as follows it actually works but it creates another problem. Here is the code (so far so good):
So looking at above we were forced to use "fill_parent" and we would think like we fixed the problem but here is the problem if we are using "fill_parent" (I took out the textview just to show the problem, textview doesnt make the problem go away anyways):
As you can see I assign the weights 3 (top red) and 2 (bottom green) but what actually happens is they get flipped: The red becomes 2 and bottom becomes 3. Just measure the pixels too see.
Here are the results of the 3 codes: http://imgur.com/iVt8g.jpg
I have a RelativeLayout that has two LinearLayouts in it. One is a bunch of TextViews and EditTexts that make up a form and the other is a ButtonBar that submits the form.
anyways, everything looks great in portrait, but when i switch to landscape mode the bottom TextView/EditText element is being hidden by the buttonbar.
screenshot to show the problem. as you can see some of the "email" textview and all of the email edit text are being hidden by button bar.
http://i45.tinypic.com/2dt7qmt.jpg
and xml:
CODE:............................
Why is the following code causing an exception? The Code throws a "mBaselineAlignedChildIndex of LinearLayout set to an index that is out of bounds" exception.
CODE:..............
If l2 is dont added to l1 than it works.
I am using the following code to play video..
View 4 Replies View RelatedI'm running into difficulties overriding an ArrayAdapter to be displayed in a ListActivity. The ArrayAdapter is filled asynchronously. What I'm trying to do is add a special "sentinel" object that sits at the beginning of the list to show the progress of the computation. Ultimately this may be a progress bar, but right now I am just using a TextView as a placeholder. The problem is that the sentinel seems to get inserted multiple times into the list - not just once at the beginning. It *seems* to be appearing once per "page" of list data (so if 8 list items fit on the screen, my sentinel appears as the 1st, then 9th, then the 17th, etc..), but that interpretation may not be accurate. While maybe not how ArrayAdapters were intended to be extended, I thought something like this should work by simply overriding getView() to show my custom TextView for index.
View 3 Replies View RelatedI know this topic has been covered a lot, so apologies if this is redundant. I would like to work in the SDK and simply extend a core app that already exists, and then override some functionality. For example, I would like to extend Contacts, but then overwrite the entire ContactsListActivity class, for my own experimental MyContacts.apk.
In this youtube video: http://www.youtube.com/watch?v=3aUjukCdPyQ
Dianne talks about the ringtone picker, did she just extend the core ringtone picker and work in the SDK?
I DO have the entire platform source code, and have made some changes to core apps there, but rebuilding takes awhile (even useing mmm, and snod), so I was hoping to speed up development by working in the SDK (where building and running the emulator seems to go faster). Not sure if this is realistic or not.
This is all just for some internal experimentation, I am not looking to contribute the the core apps.
In another post, someone had referred to ".... classes available in the SDK....". How can we see what classes we have access to, in the SDK.
I mean, is there any way to add more functionality add/remove events synchronize with other then Google calendars/formats (authorized).
View 1 Replies View RelatedCurrently in my design I've got a base abstract class that all of my activities extend from, however I discovered recently that in order to use a MapView you need to make your activity extend MapActivity. Since Java does not have multiple inheritance I was wondering if there is any way I can use a MapView without having to recreate my design for my application.
View 1 Replies View RelatedI recently formatted my computer and updated to Windows 7. I backed up my keystore and tried to sign my apk with it but it gave me an error that said my certificate expires in 22yrs. which is just shy of what the market requires to upload the apk. So now I am stuck not being able to update my app... Is there a way to extend the lifetime of certificates so that I can update my app?
View 1 Replies View RelatedWe are looking for possibility of extend C2DM to other platform such as WM. And want to check the technology or protocol behind android 2.2 Cloud to Device Messaging.
View 2 Replies View RelatedI have set negative paddings on my custom seekbar so that the round thumb image can go outside the bar, but the thumb isn't rendered out there, is there anyway to force the thumb to be drawn outside those bounds Sorry guys, I'm new to Android development, and have been tasked with fixing an existing application. The problem is that we have a custom rounded looking track bar, which consists of two rounded 'end cap' images and a 1 px background that is tiled to create the seekbar. As far as I can tell there was never one image that could be set as the background of a normal SeekBar, which is why a custom one was created. The thumb is a circle and needs to 'fit' into the end caps - the three pieces of the bar are in a relative layout. Right now I'm kind of unclear as to how the 1 px background png gets stretched as the seekbar bg, otherwise I would try to tack on the two endcaps onto that drawable some how?
View 1 Replies View RelatedDoes anybody knows if (and how ) I can write a custom view/widget and then use it in resources in layout defintions?
View 5 Replies View RelatedI realize that it would probably require boosting antenna power and thus reduce battery life but, if I am prepared to accept that, can I programatically extend wifi range?
View 1 Replies View RelatedI want to have a class "Utils", that will have several methods used all over my code. For example, I have a top bar with a textview and two ImageButtons that must display different texts and icons on different activities.I created the class Util, but it doesn't extend Activity. The problem is that if it doesn't, findViewById isn't there, can't find stuff etc.
View 1 Replies View RelatedI want to encrypt individual contacts stored by the Contacts application on Android based on user's preference. So, I am thinking I'll have to hook/extend the Contacts application before the it stores data into the database and decrypt it when the user wants to view it. Also, I am assuming I will have to store the key for encryption in a file.
View 1 Replies View RelatedI want to add tabs to the layout of my activity, but I don't want the activity to extend TabActivity. The example in http://developer.android.com/resources/tutorials/views/hello-tabwidget.html only gave example of subclass of TabActivity.
Is there any way I can make it without extending TabActivity?
I am loading a listview dynamically. I have set a .9.png image as row background image. The main purpose of using .9.png image was to extend the height of the image dynamically according to the contents of the listview. But, the image is not getting extended. The contents which can be displayed within the height of the row are being displayed and the rest are being cut.
View 3 Replies View RelatedHow would I extend TextView to allow the drawing of text with a gradient effect?
View 2 Replies View RelatedWhat is the difference when a class extend from Handler and Thread?
As described in developer.android.com
...
Each Handler instance is associated with a single thread and that thread's message queue.
...
Does the thread has no message queue ?
Any benefit for a class extend from Handler?
I would like to extend the Android platform's default Gmail/Email applications either by plugging into their ContentProvider or by using intent filters. Essentially, I want to be able to scan incoming emails for special rules that will trigger events in my Android application. If scanning emails automatically isn't possible, then I would at least like to add a menu item to the email viewer screen that would allow the user to flag the email content as needing to be scanned.
Does the Gmail/Email applications allow you to extend them in this way?
For future reference, besides finding sample code or reading documentation provided by the author of an application, is there a standard way of finding out what intents are available for my application to use? Like a tool maybe?
I go back and forth about how to name activity classes.Activity seems to imply a verb, like EditContact, for example.But that seems more like what one would call the Intent that triggers EditContact.Should the activity be named ContactEditor instead?
View 2 Replies View RelatedAnyone please help me with some code snippets to slove the problem.If anyone knows how to make an adjustable gridview please help me.
View 1 Replies View RelatedWhen I'm clicking the linear layout it should be highlighted.
View 2 Replies View RelatedI create a LinearLayout (orientation horizontal) which contains some TextView. The LinearLayout has a size of 1200px. When user move on, the screen, I would like to do like the Launcher application. I tried to use startScroll function. even if I set a distance, the layout doesn't move alone. Only distance did by user is slided. Does startScroll move alone all content? If yes, why my code doesn't work?
View 3 Replies View RelatedI have put 6 linearlayouts in the main.xml file vertically arranged in the main linearlayout. initially i want 1, 2, 3 and 6 ll to be displayed, then after sometime, 1, 2, 3, 4, 6 and then after some time 1, 2, 3, 4, 5, 6. is it possible ?
View 3 Replies View RelatedI have build a UI using linearlayout. It displays fine if phone is in vertical position. But when I switch my phone to horizontal position. Some content is not displayed. Is there anyway to add a scroll bar to linear layout?
View 2 Replies View RelatedHow do I place a TextView in the center of a horizontal LinearLayout?
View 2 Replies View RelatedI want to inflate a childView of ExpandableChildView component.
Code:.............
Where linearOpt is a vector that contains a lot of LinearLayout objects that I have instantiated.
CODE:..
This is R.layout.itemrow xml:
But I received this error:
CODE:.................