Android :: Inflate View From XML Parser Or Other External Source
Jul 27, 2010
I want to dynamically pull in a layout from an external source. As discussed in this thread from September 2009 -
http://groups.google.com/group/android-developers/browse_thread/threa.
I am wondering if the situation has changed since this discussion or if it is likely to change. I understand the need to use pre-compiled xml layouts so if there is an option to dynamically pull in a layout that is already compiled that would be fine. Basically I want a setup where I can change a view layout without an app update. The elements within the view would be fairly static (e.g. there will be 2 buttons call foo and bar that fire fooOnClick and barOnClick). The only work around I can think of is a custom scripting language that allows the definition of views that are created from code. Ideally this would parse the same xml as a standard layout. Obviously this would involve a lot of code and probably be fairly slow.
Button btnFoo = new Button(); btnFoo.setText("foo"); dynamicLayout.addView(btnFoo);
If this is the only option at least the EdsMagicLayoutInflater class would be reusable across projects.
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Sep 14, 2009
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)?
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Jun 12, 2009
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.
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Feb 25, 2010
I have a layout defined in XML. I would like to inflate this RelativeView with other XML layout file. I may use different layouts depending on a situation. How should I do it?
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Aug 1, 2010
I am trying to recreate and re inflate a View Stub each time an Image Button is pressed because at the moment my app crashes as soon as I press the button a second time (due to a Null Pointer Exception caused by the View Stub that doesn't exist anymore) but I am a little stuck as I don't know how to recreate and reinvokes the View Stub.
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Aug 8, 2010
How could i inflate my custom view using the main.xml file?
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Mar 1, 2010
I've a list view with custom list adapter(list_item.xml). I have multiple layout folder to support multiple screen size. I found out when I inflate using LayoutInflater, its always taking the view from main "layout" folder.
I've a phone with screen size "427x320".
This is my code:....................
I want the layout inflater to pick the list_item.xml from "layout-427x320" folder and not "layout" folder.
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Jun 16, 2009
I have a custom view that I had to write for a large scrollable image, as the images are larger than the size of the screen. Before, I had tried to do it by putting the image into a ScrollView but that of course didn't work. The view itself is within a RelativeLayout within the activity and at the bottom of the screen I have two buttons that are used for navigation and at the top a TextView with a caption for the activity (the main header is already being used here for instruction). In my below code, I've checked the Hierachy Viewer to confirm all the elements are loaded and in the Activity I can see the TextView, however it overlays the ZN5ScrollView area and below the image I just have a blank area of the size defined rather than my buttons. For the bottom navigation, the Hierachy Viewer is saying the absolute_y of the bottom navigation is 480. I'm wondering if anyone can help with my layout code here to get this working correctly? Bottom navigation is 50px high, ZN5ScrollView is 365px above the navigation, and the TextView takes up the rest of the area at the top
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Oct 7, 2010
I have a main screen, and I would like to dynamically spawn a view under it with a button click, then slide the main view off the screen revealing the view below it. I've accomplished this, but I feel like there's got to be a better way. The way I've done it is very limited in that you can't just spawn views over and over again under the main. My main XML file looks like this:..............
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Sep 17, 2009
I have a problem statement, and here it is: My requirement is: There are a number of images shown on the screen. I want to allow the user to drag and drop any of the images to anyother image. Based on which image is dragged and on which is it dropped, I need to do something specific. So, I need to find a way so that I can get my source view and my target view.To understand this in a better way, consider a practical scenario. In the File Explorer of Windows, we can drag and drop items from the left pane showing the directory tree to any of the folders shown in the right pane.If anyone of you ever faced a similar scenario, please let me know because I could not find a direct support to such a thing (Drag and Drop) in the platform, so may be I need to find an innovative solution to it.
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Dec 5, 2009
I am having a little trouble using some external source files. I am new to eclipse and the methods used to import external source files. Basically this is what I have done. Downloaded the source files for a java project called "TrueLicense" via CVS. Imported this library by going to "Projects" and adding the "TrueLicense" project (I am not sure if I should do this in "Source", "projects" or "Libraries"?) Imported the required classes into my android project without any compile errors.
When I run the program I get:
12-05 15:52:28.632: WARN/dalvikvm(724): VFY: unable to find class referenced in signature (Ljavax/swing/filechooser/FileFilter;)
Then a whole lot of other errors. This seems sensible as there is a sections of the TrueLicense package that used Swing. How do I only import the parts of TrueLicense that I need?
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Dec 17, 2013
I got into building roms from source recently for the i9100, all the ones I built so far, had no issues with the device, I built LiquidSmooth rom and it boots great and everything work but the sd cards, where I can locate the code for this in the source and why its happening?
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Apr 22, 2009
I have a smaller test case now:
CODE:.......
It works with the Standard SDK, but not on Android. The full code is below this post.
CODE:..........
With Android:
CODE:..........
Full code goes here.
CODE:......................
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Nov 22, 2010
I want to show images from external url listed in external xml ("similar" to picasa API).
from where i need to start, there is an app sample like this, do i can read is source?
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Sep 7, 2009
In browsers when I type view-source: before any address it gives me the page source. But i am not able to do it in android. It gives me "web page not available" . Can any one please tell me why it is giving that and any other way for me to view the page source in android?
One more doubt is what exactly is "@hide", even if I commented it( /** @hide */) it is having some meaning( it is not visible in another classes ). When I deleted it its working fine, it is visible. what is the reason?
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Feb 1, 2012
If you look at the Android documentation about how to implement a List View and populate it you will notice that they only teach you how to do it in Java extending ListActivity instead of the normal Activity, but how would the same code (layout and populate the list) using XML layout files and extending Activity?
I'm asking this because I want to implement a RelativeLayout and add more elements to the screen where the ListView is with more flexibility than using .inflate() and addHeaderView()/addFooterView().
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Nov 15, 2010
I want to bind data from an xml file? how can I do that where i'm using a layout xml file to define a scrollview ??
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Sep 6, 2012
I was planning to make my phone (a rooted SGSII Skyrocket on AT&T running GB) accessible over SSH so I could remote-control it in the event thieves (or my parents) took it. how would I know what my phone's external IP is? Any app that can read the phone's external IP and respond with it via, say, text message?
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Jul 22, 2010
Recently my HTC Desire got damaged but fortunately I had copied and pasted all the data from my HTC Desire to my laptop. I connected my Desire to my Laptop in 'Disk Drive' mode and copy/pasted all contents/folders.
Now my Desire replacement has not yet arrived. Is there anyway I can access my 'Text' messages that were stored on my Desire in my laptop.
Where will I find those text and do I need some external program to open/view them?
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Dec 3, 2012
I must have changed a setting somewhere. I used to be able to connect my SGS3 to my computer and see the files of both my internal and external SD cards. For some reason now all I can see is my external SD card. I am running a CyanogenMod 10 ROM. I have USB storage activated.
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Sep 7, 2012
Is there a browser which is able to view source-code of a webpage?
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Mar 15, 2009
I want to inflate a layout xml file(in different apk), he text was difined by string ids, so when my application load this, it can't find the string id. How can I do?
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Oct 21, 2010
I'm wondering if it is possible to inflate a layout using a different density value than the default system density. I have a high density layout, which looks good on the Galaxy Tab (1024x600px, hdpi) and I like to use the same layout on another tablet with the same pixel resolution but medium density. The mdpi layout which is used works on the device but the screen just looks really empty and I would prefer to scale things up. So is there a xml argument for scaling the layout, maybe something similar to Bitmap.Options.targetDensity. Or could this be done with a new LayoutInflater class?
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Dec 19, 2009
I wrote a View class based on ViewSwitcher and now I want to write helper classes for the view like known form the ListView: ListAdapter, ListActivity and so on..
Regarding the activity class I ran into a problem. The ListActivity forces you to add a ListView to your activity with a fixed id: @id/android:list. In my base activity class i want to archive the same, forcing a special id so that my helper classes can access the view object.
As I'm writing a general lib that could be used in various projects I can't use R.id.foobar to get the view as there's no R class. The specific project will an own R.java.
So I peeked at the source code ...
Ok, I could write my on R class, put it directly into my package and try to access it in the same way but I've no clue what value the id should have or need?
Also I couldn't find any R class at android_frameworks_base/core/java/com/android/internal
And even if this problem is solved: How can the user of my lib access "my id" from his layout XML?
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Mar 29, 2010
I'm trying to create a component using an xml layout file. I defined a layout with some custom attributes. This layout is inflated when user add it inside another layout. My problem is I don't know the parent, so I pass null for the parent viewgroup when I call inflate method. I think that's the reason why I see anything in my view. Do you know how can I do (I don't want to redefine onDraw method because I use existing component). Below my xml layout and my custom class.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content">
<ImageView android:id="@+id/img_btn_option" android:layout_width="wrap_content" android:layout_height="wrap_content"/>
<TextView android:id="@+id/txt_btn_option" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:layout_toRightOf="@id/img_btn_option"
android:textColor="@color/font_white" android:textStyle="bold"/>
</RelativeLayout> public class ButtonOptionsView extends View {
public ButtonOptionsView(Context context, AttributeSet attrs) {
super(context, attrs);
LayoutInflater li =(LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
RelativeLayout vg =(RelativeLayout)li.inflate(R.layout.button_option, null);
TypedArray ta = getContext().obtainStyledAttributes(attrs,R.styleable.ButtonOption);
((ImageView)vg.findViewById(R.id.img_btn_option)).setImageResource(ta.getResourceId(R.styleable.ButtonOption_image,0));
((TextView)vg.findViewById(R.id.txt_btn_option)).setText(ta.getResourceId(R.styleable.ButtonOption_text,0));}
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Nov 16, 2010
I have a scroll view with lots of image buttons. I want to change the image for an image button when it's pressed. The thing is that I want the image to remain until another image button is pressed. That's why I couldn't use a selector. What is the best practice to achieve his?
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Nov 6, 2009
There is this xml file under frameworks/base.
/frameworks/base/core/res/res/layout/simple_dropdown_item_2line.xml
How can I inflate that in my own android application?
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Jul 23, 2010
I've met a very strange issue that my app will crash if user first switch to landscape, then back to portrait. I found that Activity.setContentView() will throw an inflate exception. It said:
android.view.InflateException: Binary XML file line #29: Error inflating class <unknown>
This crash will happens on Android 1.6/2.1/2.1-update1, but doesn't happen in 2.2 Froyo. In Froyo, everything works fine. If the XML I used is invalid, it should happens every time when I try to inflate. But why it's okay on the first time of running and switching to landscape? This also only happens on some devices. For example, there two HTC G1 with same software installed on it and has the same configuration, one has this issue and the other one works fine.
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Sep 6, 2010
I have listview and below it have footer to bind more data at footer button click event,the data has been binded well but the problem here is expanding of empty space after click event,when i scrolled to move down,when i reach the last list row by scrolling the footer position is being at same at initially loaded,but here the problem is the list scrolling is applies to this footer layout also when i scrolled down after list row the footer get's moving down,but i need it be after list last row and i also need to know how to scrolling to be stopped when particular condition satisfied.
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Aug 7, 2009
If anybody know how to do XMl parsing.
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