Android : Way To Programmatically Set Parameters Which Are Set Statically By Layout
Sep 2, 2009
I'm programmatically adding views to a LinearLayout inside a ScrollView and i'm running into some issues setting margins and padding etc for child views of the LinearLayout.
i've tried child.setPadding() and adding the view with a MarginLayoutParams set up right, but the child view still fills the parent width.
what is the correct way to programmatically set the parameters which are set statically by layout_marginLeft, layout_marginRight, etc?
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Jul 21, 2010
So Im trying to add an imageview to my current xml design - and its working decently. Now my main problem is that I cant seem to find a way to set the attributes for the image like where it needs to be displayed etc.
RelativeLayout mRelativeLayout = (RelativeLayout) findViewById(R.id.board);
ImageView i = new ImageView(this);
i.setImageResource(R.drawable.blue_1);
i.setAdjustViewBounds(true);
mRelativeLayout.addView(i);
setContentView(mRelativeLayout);
i tried messing around with setlayoutparams but got absolutely no clue what to do with it.
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Sep 1, 2010
I like the layout of the toast widget very much, that means rounded corners, transparency, light grey border. Is there any way to see the layout parameters of such android standard widgets like the toast? I would like do define a TextView with the same layout parameters.
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May 30, 2010
I am trying to improve the layout for my game. The problem is that while I can create a good layout for one android phone, it doesn't work for another, ie the trackball for MyTouch is on the right side (landscape mode), but for the MyCliq, the DPad is on the left side. Is there a way to programmatically set the layout based on which phone it is?
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Jul 7, 2010
I've created an Activity subclass called CustomTitlebarActivity. Essentially, each main activity in my app will have a custom titlebar with many common features such as a Home button, a title, a search button, etc. In my current implementation, I am still explicitly using an include statement in the layout XML for each CustomTitlebarActivity: <include layout="@layout/titlebar" />
It seems natural that I should be able to do this within CustomTitlebarActivity. I have two questions: What code can replace this include tag, and where should I put the code? (My first instinct would be to put it in CustomTitlebarActivity's setContentView method.)
On a related note, I would appreciate insight into better ways to reuse android UI code (even if, per se, the titlebars need to vary slightly between activities.)
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Dec 7, 2009
Let's say that I have two layouts for a widget: Layout1 and Layout2. The default for the widget is Layout1, but I allow the user to choose which layout they want the widget to be. So if the user changes to Layout2, how do I programmatically change the layout to Layout2? There isn't a setContentView method for widgets like there is for Activities.
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Nov 9, 2010
I have ScrollView with RelativeLayout as a child of ScrollView. I am trying through JAVA code to set Layout_Gravity to CENTER so my RelativeLayout is centered (horizontally and vertically) in the middle of ScrollView (that covers whole screen).This works fine in XML and produces desired result, but when I try to do this programmatically, it seems there is no way to set Layout_Gravity of RelativeLayout. I tried using LayoutParams, but couldn't find anything there that would help me to center RelativeLayout in the middle. So, am I missing something or this simply can't be done?
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Jul 8, 2010
I am trying to add TextViews to my xml-defined layout in code. I have a xml-sheet, where a lot of Views are defined. But I have to add some views in code, so a create a LinearLayout in the xml-sheet:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:id="@+id/info"
android:layout_height="wrap_content"
android:orientation="vertical">
</LinearLayout>
And in this layout, I like to add my TextView:......
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Apr 5, 2010
I was wondering if it were possible to dynamically create an XML layout file to be displayed to the user. The idea would be to be able to retrieve a layout file from a central server, which could display this dynamic, server driven GUI.
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Apr 2, 2010
Im using an inflater inside an adapter for my listview. I need to add in a different button depending in the state of the data for each row, so Im thinking I need to do this programmatically, but how do I make sure its inserted into the correct place inside the layout?
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Oct 7, 2010
I'm unable to change the layout_gravity of a Button programmatically, does anybody know how to do this?The gravity attribute is easily changed using Button.gravity(), Ie it changes the gravity of the text inside the button I cannot change the gravity of the button itself. I also cannot seem to find this in any of the layout params contructors.
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Jun 17, 2010
I have defined an List View in xml as below
Code...
And i need to re-define the layout margin upon some result in my programe ,how i can achieve this
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Aug 19, 2010
My application will have two layouts, one for large screens and one for normal. For testing I'm working with one phone (800x480 240dpi) and one tablet (1024x600 240dpi) but both are detected as large screen hdpi and long aspect ratio, so I'm not able to assign different layouts.
The only approach I think that can work is to create layout-large and layout-normal, get the resolution and programmatically set the layout folder. Is that possible?
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Jul 15, 2010
I need to statically link the 3.6.2 version of SQLite against my android application due to a bug that affects the dynamic library bundled with Android < 2.2. I've already compiled and installed 3.6.2 on my development machine, but I'm not sure how I go about linking it to my Android app (developing with Eclipse).
I'm not familiar with building and compiling options, so if someone could walk me through step-by-step.
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Oct 8, 2010
I have an XML layout with some custom tabs, a heading, and a ProgressBar(main.xml). I wish to add another XML layout(home.xml) to the main.xml layout, as i wish to keep main.xml re-usable for other activity's layouts and simply add things to it as necessary.The problem: after inflating R.layout.home into rootLayout, it seems as though the ProgressBar contained in rootLayout is hidden underneath the content of home.xml.Is there a way to tell certain views(via XML) to float above other views when the layout is constructed in this way?if not, am i forced to use methods such as progressBar.bringToFront() to raise targeted views to the top?what alternatives do i have in z-ordering views when some layouts are constructed using inflation?
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May 5, 2009
If there's anyway way I to access the String values of String resources statically? e.g. a static equivalent of Context.getString(...)?
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Jun 17, 2010
I am working on an app that has multiple tabs. In the first tab the user will enter values. In the other tabs it will display the results of calculations based off of those values.
Like in tab 1, the user will enter "3" and "2". In tab 2, the program will add them and display "5".
In tab 2 how do I access the ints "3" and "2"?
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Apr 20, 2010
In requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, this); if I put time interval and distance as zero, will this work, or shall I need to give a value greater than zero.
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Mar 2, 2009
I'm programming an Activity that launches a second one through startActivity just like in the Forwarding example. The main difference is that I'd like to pass some data to the second Activity when starting it, for example an item selected in a list owned by the first Activity. I can't find how to do that. Am I missing something? I guess I do.
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Feb 17, 2009
I am trying the FaceDetector class using the code as shown in the following link: http://www.anddev.org/quick_and_easy_facedetector_demo-t3856.html Everything works fine as far as the activity drawing the bitmaps is concerned but I haven't had any success in getting Android to recognize a face. Has anyone tried this feature? Could anyone please help in understanding the parameters of the images to use or please post a link to some image that has worked for them?
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Dec 15, 2009
Im using ksoap2 to call web .net services. The call works just fine except when I pass paramaters. The passed paramaters are always recieved as null values by the web service. I dont know what the problem is, I hope someone can help.
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Oct 8, 2009
I want to use default Android credentials for specific phone to pass authentication test in Google Apps, but documentation is terrible :-(, and worst of all I'm a newbie. Anyone have a idea how to do it? There are some apache libs for it, but as I mentioned documentation is very weak. Here is reference to this class.
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Oct 6, 2009
I want to use default user login/pwd in my app. Do you know how can I have access to this data?
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Feb 18, 2010
This link describes how to search the Android Market for apps using various parameters:
http://developer.android.com/guide/publishing/publishing.html
I'm having a heck of a time figuring out how to format a link for my apps published by my company using this format. For searching by developer name, the doc says to use the following format:
market://search?q=pub:<Developer Name>
It also says it returns exact matches only. My publisher name is "Polyclef Software". I guess I'm wondering why Google can't make a market search feature that searches for substrings in the publisher's name, but aside from that, how am I supposed to format the link? Neither of the following work:
market://search?q=pub:Polyclef Software market://search?q=pub:Polyclef+Software
I've tried a number of variations now and nothing works.
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Jun 2, 2010
I have a HTTP GET request that I am attempting to send. I tried adding the parameters to this request by first creating a BasicHttpParams object and adding the parameters to that object, then calling setParams( basicHttpParms ) on my HttpGet object. This method fails. But if I manually add my parameters to my URL (i.e. append '?param1=value1¶m2=value2') it succeeds.
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Jul 20, 2010
I am trying to upload file to php server using following tutorial http://getablogger.blogspot.com/2008/01/android-how-to-post-file-to-php-server.html
I dont know how to add parameters like: userid="12312";sessionid="234" in it.
How to achieve this?
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Jan 19, 2010
I am developing an app that uses the phone camera, and I want to set the Flash Mode, if flash exists. From documentation, it looks like I need to call Camera.Parameters.getFlashMode() and check if it returns null to determine if flash exists. Note: getFlashMode() is supported from API level 5
However, when I try to run this app on a phone with cupcake, I get an error: 01-19 14:02:43.404: ERROR/dalvikvm(18891): Could not find method android.hardware.Camera$Parameters.getFlashMode, referenced from method ...
I tried to call this code based on SDK version as follows, but that does not work either. Looks like there is a class verification thats fails at init:
CODE:............................
So now I am wondering if there is any other way to check if flash exists? or is there a way to conditionally compile code based on mSdkVersion?
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Apr 29, 2010
I have the following xml object representing a ImageButton I try to inflate it and add it to a TableRow with the following code : Ok so I noticed that it didn't look as expected, so I fire up the Hierarchy Viewere and noticed that the ImageButton's actually have an layout_width = FILL_PARENT instead of WRAP_CONTENT, also the layout_gravity is NONE and there is no padding to be seen. Do, am I inflating it wrongly ? Or is maybe the new TableRow.LayoutParams() part doins omething wrong ? Code...
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Apr 19, 2010
Today I met a problem, I need to pass a ArrayList<MyClass> from an activity to another. I dont know what the Intent exactly do when I use putExtra to pass in an ArrayList<MyClass> object. I guess MyClass need to implement Parcelable interface, so I just did it. But still, it does not work. Maybe I need to create a Bundle and then use Bundle's putParcelableArrayList method to put my ArrayList<MyClass> object in, and then pass this bundle as parameter of putExtra to the intent. So crazy! I am lazy, I just want to pass an ArrayList<MyClass> object simply, is there a simple way??
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Aug 20, 2010
I have read a lot of stuff about launching Google Maps in Android. That's pretty easy:
Uri uri = Uri.parse("geo:38.899533,-77.036476");
Intent it = new Intent(Intent.ACTION_VIEW, uri);
startActivity(it);
The problem is that the map is shown at a high zoom level and there is no marker on the map. So, if the user move a little bit or something happen, the point is lost. Is that possible to add a marker like this:
http://img.skitch.com/20100820-da3n4r7h5xbsu6bsx4p4ujjghc.jpg
or like this:
http://img.skitch.com/20100820-qg7k2m5wtwm3j5phphrgc8tb53.jpg
So I can be sure that even if the user move the map, he will be able to find this place again.
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