Android :: What Is Layout Inflater In Application?
Oct 18, 2010What is the layout inflater used for in an Android application?

What is the layout inflater used for in an Android application?
I have question on what is the best approch to take.I have a header view in all my screens of the app.
So is it best to have the setContent of the header view and then adding the views by inflating them in the sub-class activity as below
CODE:.................
Can anybody tell what is the use of LayoutInflater in Android?
View 2 Replies View Relatedsomething weird is happening when i inflate a particular view and i wonder whether i'm running into some kind of namespace collision inside the resource/class space.i have a few custom views in my app and generally i park them in discrete XML files. the views are declared.
View 3 Replies View Relatedthis is a layout issue, now my app's layout is this screenshot...........
View 7 Replies View RelatedI am very new to Android Development. I am trying a sample application and it is generating a button dynamically using Java and it is working fine.
This works fine in my emulator. However when i try do with an XML based layout, my app crashes in the emulator.
Main.XML contents
<?xml version="1.0" encoding="utf-8"?>
<Button xmlns:android="com.testing"
android:id="@+id/button"
android:text=""
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
Code:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
btn=(Button)findViewById(R.id.button);
btn.setOnClickListener(this);
updateTime();}
Does anyone know why this simple application is crashing because of the XML layout?
I would like to know if it's possible to display an activity inside a layout of my activity. For example I would like to display the Phone application inside a layout of my activity.
View 3 Replies View RelatedI am a android beginner, now i am going to design a Quiz application for android I am very confuse about which layout i should use for Quiz. My requirement is when user touch the answer , the next question will appear on same screen and at the end of quiz the web view will be generated as a result page. Right now i don't have in depth knowledge of Layouts and switching the view when user clicks on Answers. Please help me at least suggest me Which layout i use.
View 2 Replies View RelatedI want to do something very similar (in terms of appearance) to the app details activity of the Market app. It looks like a cross between linear layout (not all rows the same), list (scrolling nature), preferences (headings). My guess is its a linear layout in a scroll view (ignoring activity header/footer) and the headings are just hard coded.
View 9 Replies View RelatedI have just purchased the X10 handset and on a whole I'm really pleased with it. My previous handset was an N97 - rubbish! Anyway, since playing with the phone, could you answer these for me as I'm new to Android and don't really know what I'm doing.
1) On the mentu's, text screen, etc. It has a blue background and white writing. Is there anyway to change this? I have an eye condition and blue isn't the best colour for me to read from. I was looking for something like theme settings but there isn't one.
2) Is there a keyboard application that is like the normal alphanumeric layout on phone keypads ie to get the letter b you press the number 2 twice. I believe the HTC Desire has this option and old Nokia N97 that the feature.
3) I've read on another thread about the ringing volume and earpiece volume being low and turning up the volume to max makes the earpiece sounds quality pop/crackle. I've experienced this too but does anyone know if there is a firmware update out to rectify this?
4) I've also read that Android 2.1 is due out for this handset. Does anyone know when it's out, or if it is already out, where do I download it from?
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 new in android, i am having few problem in layout alignment. I have divide the screen into three layout,as header, body and footer. I am giving the height dynamically for the three layout in java file, so i need to give 12% of height to header and footer layout, and the remaining 75% i need to assign height to body layout. For that i have made the calculation as follow
first i am getting the height and width for the screen. With the help of the screen height i am getting the 12.5% height for header and footer layout
WindowManager w = getWindowManager(); Display d = w.getDefaultDisplay(); int totalwidth_screen = d.getWidth(); int totalheight_screen = d.getHeight();..................
Is it possible to build a GridView object in XML with 3 columns and 4 rows of Image buttons? It doesn't seem to have similar containment relationship like LinearLayout or RelativeLayout viewgroups.
I want to do this entirely in an xml layout file. When I put ImageButton xml tags inside a GridView xml body, The layout panel in eclipse is throwing an exception: UnsupportedOperationException:addView(View, LayoutParams) is not supported in AdapterView.
I have an Activity which uses a layout with a LinearLayout in it. Now I want to create in runtime a subactivity which loads some other layout and add this layout as item of my LinearLatout.
View 1 Replies View RelatedI have following in xml
I wanna put the second linear layout at the bottom of the screen.
I have set the property of second Relative layout to bottom but still not showing at bottom..
code:...................
I have LinearLayout. Inside to that i have added one more Linearyout ( checkbox & text ).
(LinearLayout) one textView, (LinearLayout) Checkbox,textview , one textview
Now whenever clicks the checkbox, i need to dynamically display EditBox after the checkbox.
code:..........
On the click of checkbox listener i added a code like below.
code:.........
I want to the layout which was added earlier.
I am using eclipse 3.5 with the ADT plugin.when I view layout xml files, i get two tabs in the view the source code view and a graphical view.the graphical view almost never works for any of my layouts.it usually shows "NullPointerException: null" at the top and nothing else. when it does work, it often does not match what i get in the simulator or device.it seems like this thing simply is not ready for prime time; although the idea is very cool.has anyone else had much success with it?
View 5 Replies View RelatedI have defined the layout which you can see at the end of this message. I do not understand, why the button is not displayed. If I move the button to the top that the rendering works.
CODE:......................
In android, there are different sub-directory under 'res'
* layout
* layout-finger
* layout-land-finger
Can you please explain what are the difference between these directories?
I've successfully created a countdown kitchen timer activity, however my goal is to have an activity that has 3 timers on it that all work independently. I created a separate layout just for the timer itself and moved the timer code into a class and I've used layoutinflater to create the views and then added them into the linear layout for the activity. I get the layouts fine, however there's no functionality. There doesn't seem to be anything that ties the class code to the activity. How should I approach this? Can anyone point me to some working example code?
View 2 Replies View RelatedHere's a screen shot of the layout I'm looking for: http://www.vimtips.org/media/ll.png Can this all be done with one Relative Layout?
View 1 Replies View RelatedImagine I have a toolbar implemented as a horizontal LinearLayout as follows:
[___Button1____] [___Button2___] [___Button3___] [___Button4___]
When someone clicks on Button2, I want the toolbar to change to:
[___Button1____] [___________Button2___________] [___Button3___]
The toolbar should transition from the first state to the second state through a smooth animation. I would like to use a scale animation on Button2, and while that is happening, Button3 and Button 4 should move to the right (while the animation is going on). At the end of the animation (or maybe during), I will fade Button4 out.
Question: How do I achieve an animation of the layout of the toolbar such that only one component (i.e. Button2) is being scaled while the others are not being scaled - the layout is simply updated during the animation of Button2.
I looked at LayoutAnimationController, but it does not appear to allow me to either:
1. specify different animations for the different components, OR
2. indicate that only animate one component and don't animate the others.
I can't scale the entire toolbar because that distorts Button1/3/4 which I don't want.
I have the following code in my layout.xml.
code:............
In the eclipse Plugin layout creator, the EditText and button are shown properly. (see the below screenshot)
But on the device and emulator, the button is not hidden. (see the below screenshot)
why the button is getting hidden in the device?
Can I embed Tab Layout into other layout?
The designed layout is like below...
I just want to have tabs in my layout but not the root. Is it possible?
My layout files are growing and growing. So I came up with an idea of putting them in subdirectories. Is it possible? Simple code:
<include android:id="@+id/mLayout" layout="@layout/subdirectory/blahblah">
seem not to work.
Is it possible to have another layout in my main layout?
Such that i can set my imageview in another layout.
I have 5 layout folders. layout, layout-small, layout-normal, layout-medium and layout-large.
My app is heavily image based. As a result I have created the proper images. mdpi, hdpi and xhdpi. I don't think I need to worry about ldpi since screens are only getting bigger.
With this in mind and the need for me to now create a good landscape layout for all my pages, how do I go about this? Is it simple layout-land? No need for large/small/normal again right?
Considering that I've got all my hdpi and xdpi images do I even need layout-medium, layout-large and layout-normal? Because the images will be adjusting themselves based on screensize surely I can use one layout and have that work for all screens..?
It's all getting very confusing now that I'm trying to add a landscape view to my app. It doesn't do it very well at the moment so I will probably have to design a landscape friendly layout so I can understand that I would need to rebuild all my layouts for this particular use (We're talking about 100 layous here but oh well, I can manage it. )
How do I go about creating the following layout in Android?
I want a "header", that is, a header that stays the same at all times. The only thing that should change is the area below the header.
Think of it as a webpage, where the content-area is where its all happening =)
+--------------------+
| H E A D E R |
+--------------------+
| |
| |
| |
| C O N T E N T |
| |
| |
| |
+--------------------+
Sure, its easy enough to create a LinearLayot, add a View on the top and then another view below that - tada! But what Im after is how you "set up" or design the project so its easy to just change whats in the Content.
What I really would like is to be able to "swipe" (see here) the area and then just "roll in" a new View/thing in the Content-area, but keep the same header.
To create the following xml layout for the row of my listview
Here the Text is written in a textview and remaining 5 boxes are 5 different ImageView, and the Images should be clickable. How thetext comes over the images.
I want a layout with alpha=0.5 to cover another layout with a button. I got this. However I am still able to click the button of the covered layout, although the other layout is in the front.
This is the xml layout:
Code:
<RelativeLayoutxmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
[Code]....