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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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?
View 7 Replies View RelatedIm 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?
View 1 Replies View RelatedI can use android:gravity="bottom|center_horizontal" in xml on a textview to get my desired results but I need to do this programmatically.
My textview is inside a tablerow if that matters in a relativelayout.
I have tried:
CODE:........
But if I understand that correctly, that would apply it to the tablerow? not the textview?
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
I need to create a GUI (layout+views) in my .java activity class (I know it's far more flexible and easier to use .xml layout file, but I don't want to use it for now).
I can't find any setGravity() (but a "Gravity" object I can't figure how to use) or any set setMargin() method for the "View" object. What is the easiest way to do it?
I can't seem to find anywhere a way to programmatically change the the alignment of the button.
In the XML it is simply layout_gravity="Center" or something.
How do we do this in the code?
LayoutParams do not seem to cater for this.
I would like change the width of a Horizontal Progressbar programmatically (initial size is set in XML using RelativeLayout...but I would like to dynamically change it based on certain values).
I have tried setMinimumWidth(50) in my code, but that did not make a difference. I have also tried setting 'android:layout_width="wrap_content", but that did not work either.
Here is my XML:
CODE:.......................
I have this resource file for colors
CODE:..................
And this method that gets called when the user clicks one of four colored Buttons
CODE:.................
The problem is the color of the Button doesn't change when pressed. I stepped with a debugger and it actually reaches the right points in the method, so that's not an issue. I think the problem is in pressedBtn.setBackgroundResource(newColor) but I can't understand why. Anyway, if you have a better solution to change a button color when pressed and, after a half second, change back to original color, let me know.
While developing for Android, I am unable to open more than one main.xml file in an Eclipse editor at a time.Each time I open one, it simply replaces the editor (tab) of the first main.xml with the new one, instead of opening a new tab - even if the contents of the existing tab were unsaved.Even stranger, I can open multiple main.xml files from different projects with no problems.This only happens when they're within the same project.
View 2 Replies View RelatedI 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?
View 2 Replies View RelatedI'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.)
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.
View 2 Replies View RelatedI 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:......
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.
View 2 Replies View RelatedI'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?
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?
I am reading in some data from a REST api and need to generate some buttons based on the information the app receives.
Because I need the same buttons in many Activity screens I have extended Button to make a RachelButton and I set it up in the constructor.
CODE:...............
Then an example of the resource I am using to generate a colored button is this:
CODE:.............
As you can see in the code I am setting the text color and I'm sure that this color exists as a resource.
But setting the text color like this has no effect at all, the text color on the button seems to be a darker shade of the button's background color.
Are there api to support go to back Programmatically i.e same effect as the back button of the phone.
View 5 Replies View RelatedI'm trying to access the textviews (for starters, eventually replace with imageviews etc) which are stored in the tablerows in the code below.
The line beginning 'log.d' was the part I was working on, trying to get it to print out the contents of the 2nd text view in the first row, but I can only get as far as selecting the tablerow using "getChildAt(i)".
Trying "getChildAt(0).getChildAt(1)" doesn't select the textview as I would have expected it to; says that it's a View and as such, doesn't have this method - though unless I'm mistaken, aren't tablerows ViewGroups, which do have this method? code...
I have the following linear layout. What I don't understand is if I set the background to another image, the padding information are reset. Is there a way to prevent this?
<LinearLayout android:id="@+id/aPanel"
android:orientation="horizontal" android:layout_width="fill_parent"
android:layout_height="wrap_content" android:background="@drawable/bkground"
android:paddingLeft="15dp" android:paddingRight="15dp">
<!-- some children here -->
</LinearLayout>
I see the position of the children get shifted when I change the backround drawable of the linearlayout 'aPanel'.
public class SamActivity extends Activity
{
private Paint mPaint;
private MaskFilter mEmboss;
private MaskFilter mBlur;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
[code].....
This is my code.In this i draw a line over the image.Now i want to know how to create button programatically?
Can we change the apn settings programmatically?
View 2 Replies View RelatedI'm trying to change the e-mail address info of some contacts programmatically.
I have the following contact: Name: John Patrick Phone: 1234567890 ID: 15 E-mail: j...@univ.edu (The type is work e-mail)
I'm using the following code to change the e-mail address programmatically:
CODE:..........................
My understanding is that the code above should run successfully. However, when I excecute this code, the e-mail information in my contact doesn't get updated.
I already have the button:
CODE:..............
I have the "empty" icon show on the button when the program starts.
What I want to do is change the button's icon automatically from my code (low, medium and high) based on user inputs
I tried:
Button myButton = ..........
But I cant figure out
I as i know we can change the installing location With android SDK , using USB cable But i wanna know is it possible to change the installing location Programmatically? is it yes how?
View 2 Replies View RelatedI'm looking for a way to access the settings for the browser and mms apps programmatically. I know that there are APIs for browser content providers to add bookmarks and add search strings to the db. But is there a way to access any of the options such as text size, default zoom, etc. I've looked at the source but can't seem to find a way, as the preferences file is private and there being no content providers for these settings.
View 2 Replies View RelatedWhat's the best way to change width/height of a widget (I mean, a UI widget, subclass of android.view.View) programmatically?
Doing something like this works, but it doesn't seem quite right:
CODE:....................
I've prepared custom component based on LinearLayout. Whole component is defined in XML. Currently to use it you have to write:
<com.xxx.android.components.TopMenu
android:layout_width="fill_parent"
android:layout_height="44dp" />
Is it possible to set width and height in the java constructor? So it would be possible to write just:
<com.xxx.android.components.TopMenu />
I've tried to modify and set LayoutParams, but it didn't work for me.
If you use an AbsoluteLayout (I know that it is deprecated, but it was the only way to solve my problem ) you can give the childViews the tag "android:layout_x" and "android:layout_y" to set their absolute position within the AbsoluteLayout.
However I dont want to set these informationen in the xml, because I only know them at runtime. So how can I set these parameters at runtime programmatically? I dont see any method on the View like view.setLayoutX(int x) or something.
Here is my XML, which works fine, when I set the layout_x and layout_y values. code...