Android :: Can't Get Layout Info / When Creating Activity
Jul 22, 2010
I have this element in my layout XML:
<FrameLayout android:id="@+id/FrameLayout01"
android:layout_width="320sp" android:layout_height="380sp"
android:layout_gravity="center" android:background="#99CC33">
</FrameLayout>
And I want to get its position on the screen with getTop(), getBottom() but I want to do it only once.
I was trying to do it on the onCreate(), but those methods return all 0 as response.
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Jun 3, 2010
The android docs say that it adds the runnable to the queue and it runs in the UI thread. What does this mean? So, for example, the same thread I use to create my layout is used to run the Runnable? What if I want it as an independent thread that executes while I am creating my layout and defining my activity?
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Jan 20, 2009
I want to be able to show the Battery Info activity in my app, which shows things such as the exact level, battery health, etc.I'm not sure how I can get it, though a few applications such as Power Manager, Any Cut, etc. show this screen as well. I found in the source code of Settings this intent in a file called testing_settings.xml,But I don't know how to use it. I would guess from the fact that Any Cut has a list of activities, that a list of said activities exists somewhere, and therefore an easy way to access them exists, but I haven't found it.
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Oct 5, 2010
What theme is this? Also anyone have some information on theming? Even Metamorphing? I'd like to create some of my own stuff.
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May 11, 2014
I want to make am basic app of website . To be accessible offline.I have files:
database/database.txt
css/style.css
img/logo.jpg
index.php
how to put that files info apk file and make it all working (php) ?
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May 6, 2010
I'm trying to create a "scrollable" layout in Android. Even using developers.android.com, though, I feel a little bit lost at the moment. I'm somewhat new to Java, but not so much that I feel I should be having these issues--being new to Android is the bigger problem right now.The layout I'm trying to create should scroll in a sort of a "grid". I THINK what I'm looking for is the Gallery view, but I'm really lost as to how to implement it at the moment. I want it to "snap" to center the frame, like in the actual Gallery application.Essentially, if I had a photo gallery of 9 pictures, the idea is to scroll between them up/down AND side to side, in a 3x3 manner. Doesn't need to dynamically adjust, or anything like that, I just want a grid I can scroll through.I'm also not asking for anyone to give me explicit code for it--I'm trying to learn, more than anything. But pointing me in the right direction for helpful layout programming resources would be greatly appreciated, and confirming if it's a Gallery view I'm looking for would also be really helpful.EDIT: To clarify, the goal is to have ONE item on screen at a time. If you scroll between one item and the next, the previous one leaves the screen, and the new one snaps into place. So if it were a photo gallery, each spot on the grid would take up the entire screen size, approximately, and would be flung out of the viewable area when you slide across to the next photo, in either direction. (Photos are just an example for illustration purposes)
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May 6, 2010
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.
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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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Mar 9, 2010
not sure how to inflate this from my layout file: MyView v = LayoutInflater.from(this).inflate(R.layout.myview, null); the inflater of course does not know what 'MyView' type is, and returns only View. What's a good way to reconcile this?
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Sep 26, 2010
Is it possible to create a layout based on (background) images? For example, there is well know app called Appie that uses this picture as a homescreen:
I might be able to recreate the layout with a TableLayout, but this will be difficult to get it perfectly aligned with the buttons in the image. The default layout options make it very difficult, or maybe impossible, to allow for selection of the buttons on the image (especially when the buttons are in an arc-path). Can anyone tell me how this is done?
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Oct 8, 2011
I'm starting a calendar app and I'm trying to figure out what the best way to create the layout is. I don't want to use the built in CalendarView as it's only in API >11 which limits the potential users too much.
I've toyed around with a GridView with and Adapter behind it. Truth be told I'm still figuring out how that one works, but it seems the most promising.I tried a nested LinearLayout of TextViews but that requires accessing each TextView be it's ID.
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Jan 16, 2012
I'm creating a menu in XML using the eclipse software.Unfortunately, I'm no expert in XML but I have attempted to create a basic menu.
The issue I'm having is the alignment of the menu buttons. The buttons on the left column are smaller in width compared to the buttons in the right column. I know this may not seem much of an issue now, but the problem is made worse if I edit the text value of the buttons.
I want to achieve even distribution for both columns of buttons but I have been scratching my head trying to figure this one out!
find below an image describing my program and the code:
Code:
<TableLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android">
<TableRow android:background="#FFFFFF">
[code]....
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Jul 14, 2012
I am using:
Android 4.0.3
OpenCV 2.4.2
Samsung Galaxy S2
The face-detection example (from the opencv 2.4.2) is working perfectly. But now, I would like to create a custom layout and actually work with just the data extracted from face detection and build a game on it. Not necessarily having the FdView surface taking the entire screen.
I have done these modifications below, but just a black screen is displayed. Nothing appears on the screen.
Changed the BaseLoaderCallback in FdActivity.java
Code:
//EXPERIMENT
setContentView(R.layout.fd);
FdView surface = (FdView) (findViewById(R.id.FdView));[code]....
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Jan 6, 2010
I have an activity which queries and display some Contact Information. And it has a button which launches the intent for 'Edit Contact'(the default Android activity). What should I do to refresh my view in case user edits Contact Information? requery in the onResume() of my activity? add a content observer?
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Jul 31, 2010
In a broadcast receiver I want to do the following:
1. See if MyActivity is alive somewhere. 2. If it is, bring it to the foreground. 3. Otherwise, start a new MyActivity.
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Jan 19, 2010
My code is calling setContentView(R.layout.someLayoutID); from an activities' onCreate method. The activity is launched with the following: Code...
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Jul 22, 2010
I want to create a stub of one of my Activities, but I want to keep it in the test project so not to have it in the actual apk. I don't seem to be able to find a way to do it though. I get this:
java.lang.RuntimeException: Unable to resolve activity for: Intent { act=android.intent.action.MAIN flg=0x10000000 cmp=com.example.test.StubActivity }
I did find if I put it in the main project and put it in the manifest accordingly (IntentFilter:(Action:Main, Category:Default)) it will work, well it actually crashed, but I am not bothered by that. Something to fix later on.I did think about putting everything in the same main project and just have a test package, but that would then involve messing the manifest, I think. It seems better to keep them separate. It's just cleaner.
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Mar 1, 2010
I had a bunch of code in an activity that displays a running graph of some external data. As the activity code was getting kind of cluttered, I decided to extract this code and create a GraphView class:
public class GraphView extends LinearLayout {
public GraphView(Context context, AttributeSet attrs) {
super(context, attrs);
LayoutInflater inflater = (LayoutInflater)
context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
inflater.inflate(R.layout.graph_view, this, true);
}
public void start() {
// Perform initialization (bindings, timers, etc) here
}
public void stop() {
// Unbind, destroy timers, } }
Moving stuff into this new LinearLayout-derived class was simple. But there was some lifecycle management code associated with creating and destroying timers and event listeners used by this graph (I didn't want this thing polling in the background if the activity was paused, for example). Coming from a MS Windows background, I kind of expected to find overridable onCreate() and onDestroy() methods or something similar, but I haven't found anything of the sort in LinearLayout (or any of its inherited members). Having to leave all of this initialization code in the Activity, and then having to pass it into the view seemed like it defeated the original purpose of encapsulating all of this code into a reusable view. I ended up adding two additional public methods to my view: start() and stop(). I make these calls from the activity's onResume() and onPause() methods respectively. This seems to work, but it feels like I'm using duct tape here. Does anyone know how this is typically done?
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Nov 17, 2010
Static Layout for whole app that must be in all Activity
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Oct 5, 2010
My app Consists an intro page with "Start", "About", etc..
I managed to create a functional version of the app by having the "Start" button call a new layout in which a new onclick listener is defined.
This doesn't seem clean to me that I@m defining a new onClick listener for each Layout I use and wonder how the correct way would be to create individual pages (including my "About" and any other screens I implement).
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Sep 14, 2010
Official android dev website says that:You can implement your tab content in one of two ways: use the tabs to swap Views within the same Activity,.....http://developer.android.com/resources/tutorials/views/hello-tabwidget.html
I just wanna use tabs to swap views, no more than one activity. is there any sample code?
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Feb 28, 2010
For a rather crazy reason I am trying to pass a linear Layout from one activity to another. Should I use an intent extra for this? What would be the right way to create a Linear Layout in one activity and then spawn a new activity using that linear Layout.
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Jun 3, 2009
I want to find the dimensions of the various views in my layout. My understanding is this can only be done after layout is completed since layout is somewhat dynamic. So, after the activity calls setContentView() and then returns control on the main thread to the OS so that layout can occur, how do I get a notification that layout has completed so I that I can query the views for their dimensions? On a related topic, can I find out the status bar's height or least the screen's full size (from which the status bar's height can be calculate by subtracting my window's height)?
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May 13, 2010
I am having layout which I want to render on to different sizes of mobile (like WVGA854). Resource structure is like
reslayoutmain.xml
reslayout-largemain.xml
By default it is taking layout main.xml file itself of layout. Its not pointing to layout-largemain.xml. its throwing exception:Activity can not start resource not found. So can any one guide me how can I acheive this and how to support mutiple screens with different layouts like large,small and default along with images specified in respective dip folders.
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Aug 18, 2009
I created a new Activity and created a new layout file under res/ layout . after this,i also want to add a options menu file under res/menu.but how could i bind all these layout file with this Activity? I can't find any info in manifest file. or i missed it?
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Apr 29, 2010
How can we use more than one layout file. I have implemented a cutom dialog.That means i have created an layout file for dialog. And one layout file for my activity. But whatever the UI items in dialog layout ile if iam using them by findViewById it is giving me null
I will explain in details here @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); applicationContext=getApplicationContext();
Dialog folder=new Dialog(this); folder.setTitle("Creating folder"); folder.setContentView(R.layout.create_folder); TextView tv=findViewById(R.id.folder_text); //Here folder_text is in my second layoutfile ie in create_folder.xml //In the above statemet i got the null to tv variable. folder.show();
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Feb 4, 2010
It displays the first view correctly but i want it to be connected to a java class so i created an FirstActivity class where i can control all my components in the first view but how do i attach the first.xml layout with the FirstActivity java class ?
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Aug 19, 2010
How can I pass a string from an activity to a layout?
I can pass arrays from an activity to a layout with the following activity code...
Is there a simpler way to just pass a single string instead of any array of strings, from an activity to a layout?
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Jun 29, 2010
I have a layout with two buttons, I want to disable or make unclikable one of the buttons when internet connection is lost and back to clickable when connection is regained. From my broadcast receiver I am calling another class(which extends activity and thus can call findViewById) which is attempting to change the main layout. App is force closing. What am I doing wrong here, any other ideas as to how to achieve what I am trying to do.
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Apr 19, 2009
Is it possible to add a view dynamically that overlaps other views in the layout. I have Linear Layout defined for the activity. As part of the Layout I have a custom View. The content changes dynamically and sizes appropriately based on the content size, with fill_parent for width and wrap_content for height. But what I want is, dynamically take over the full screen and then based on a click go back to the normal mode. Is there a mode to display a view where - in it can overlap all other views in the layout?
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