Android :: In Java Extended GLSurfaceView Sees Get Height GetWidth
Oct 3, 2010
The title/subject pretty much covers the issue. Using various examples and and the API on googlecode, it seems like my extended GLSurfaceView class ought to be a good place to work my onTouchEvent inputs but when I try to set variables involving getHeight() and getWidth() when I make the call to my "where did the user touch class", the getHeight() and getWidth() are zero. I have verfied this by telling the class method to return the getHeight() or getWidth() int I passed it and it comes back as zero. I am using an extended SpriteTextRenderer to display the values from my "where did the user touch class", and I know that it is working well because because I can change the other method to return event.getX() or event.getY() and those values display and update just fine. My question is, is the extended GLSurfaceView class the place where I should be asking to get the getHeight() and getWidth() values?
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May 5, 2010
I won't beat around the bush here... I'm trying to put my GLSurfaceView (called ShapeSurfaceView) into a relative layout. Before trying to use a layout, everything has been working fine simply instantiating the view and calling setContentView(mShapeSurfaceView). Since I got this error I researched how to create the layout completing in the Java and that is working quite nicely... it's just a ton of code to setup the layout, view and rules for the view. I'd really rather have the XML method working.
Here's the main XML, I've added no other views yet...
The java from onCreate, nothing special...
setContentView(R.layout.main); mShapeSurfaceView = (ShapeSurfaceView)findViewById(R.id.glview);
Here is the logcat error. My previous logcat error was mentioning the class constructor missing the AttributeSet parameter so I added that to the constructor for the ShapeSurfaceView yet still ended up with this. code...
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Nov 8, 2010
I started an Android OpenGL application and I have the following classes: class A extends Activity class B extends GlSurfaceView implements Renderer When class A's onCreate is called, it creates an object of type class B and calls: How should I use my custom class that extends glSurfaceView in my XML file/Activity? Code...
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Oct 17, 2010
The only available reproducible example I can find to share with the board is the Android sample code NotePad, which is loaded into the IDE's Package Explorer as 'NotesList'. I want to know why, in the package's NoteEditor.java, LinedEditText (extended from EditText) can't be renamed? In other words why can't I rewrite this extended class as, say, "Lined_EditText" in the two lines where the word exists, in its class name and its constructor? They are the only two locations, as far as I can determine, where the words exist in the entire package.
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Jul 22, 2010
I'd like to know how to specify the height of a particular item of a ListView from java code ?
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Apr 22, 2013
The phone and cables are good as I can get HTC Sync to work on my old PC and this one worked just a few weeks ago and I can even get it to work in a VMware session. But for whatever reason the phone just keeps showing up as Unknown and is put under Other devices as “Android phone”. On the other PC and in the VMware it is added as "My HTC" under Android USB Devices in Device Manager.
I’ve tried a bunch of uninstalling and rebooting and so on but something on my new Windows 7 PC is stuck when connecting the phone. It thinks it has no driver for it but it does. If I try and point any of the HTC INF files Windows just says they are not for this device.
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Oct 7, 2010
If I have the following:
CODE:..............
How can I get the body (second EditText) to fill the rest of the screen, but still have the scrollview kick in when the contents of the body are too long? Like a height="wrap_content" and minHeight="fill_parent"
layout_height="fill_parent" seems to not do anything if you put them in a scrollview
A working example of what I want is the email app compose window
I tried this and the EditText elements act like they are wrap_content and no filling is happening. Just scrolling if you type enough
CODE:...................
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Oct 28, 2010
This is my layout that suppot delete from listview ,the problem is when listview height is higher than screen height it goes under the button , so need a solution for avoding it
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Nov 15, 2010
I want to put a button next to a EditText and I want their heights to match.For example, from the built in Android browser:
The Go button is the same height as the EditText field.I know I could wrap both these views in a parent layout view, and set both of their heights to fill_parent, and that would make them match.However, I would like to do this without having to give the layout a static size.I would rather have the EditText take whatever height it needs based on the font size and then have the button next to it match whatever height that might be.Is this possible with an xml layout?
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Aug 28, 2010
I am having problem with a GridView within a RelativeLayout, which is again within a ScrollView. The problem is that the height of the RelativeLayout is not following the height of the contents of the GridView. When there are more than one rows, the GridView is clipped and a scrollbar appears, which is undesirable. I have tried to illustrate my problem using an screenshot from the Android hierarchy viewer. You can see how the red RelativeLayout box has clipped the second row of the GridView. I am pasting the XML layout of the page (page.xml) and the individual grid item (griditem.xml). I have used the following code to inflate the grid items in the gridAdapter code:
CODE:.................
What I should do to have the height of the RelativeLayout follow the full length of the gridView?
Here is the screenshot: http://tinypic.com/r/98rs4n/4
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Apr 4, 2012
I have some class LoginActivity.java. In the onCreate method I retrieve ListView:
ListView list = (ListView)findViewById(R.id.snListView); then:
list.setAdapter(adapter);
In addition there are login.xml layout - there are:
<ListView
android:id="@+id/snListView"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</ListView>
and sn_row.xml:
[Code]...
At the moment I have cell's height 100dp, I need that cell's height will depend on device, I mean I have here 5 cells showing at login screen in ListView and I need that these 5 rows will fit the ListView (cell's height = ListView's height/5).
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Jun 12, 2009
i want to start programming in OpenGL on Android, but Eclipse can't find the GLSurfaceView. I'm using the 1.5 SDK. Do I have to set specific entries in the build path?
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Nov 30, 2009
Following the samples and examples, I've successfully been able to load a model on screen and rotate it with the DPAD keys and overriding the onKeyDown method of the GLSurfaceView. Trying to use a letter though, causes a small box to appear at the bottom accepting the text that is being typed. What I'm not entirely clear on, is since I don't have a listener defined in the main Activity, why those key letter key presses are being intercepted by some other inherent listener(?). I setup an OnKeyListener for the view to call my own method and that does work... but I'm wondering if there is perhaps a better way to handle it.
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Sep 3, 2010
I am a lazybones using GLSurfaceView and loving it. But now that my code is running too darn fast (heh), I would like to slow it down via setting eglSwapInterval to 2 or something. Just to be nice to the battery. But, being a lazybones, I can find no way of doing this when using GLSurfaceView. (and hacking an early return from onDrawFrame() was very unsatisfying).
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Mar 31, 2010
currently GLSurfaceView is not supported in app widget .can we make changes to framework to make it support? is there any limitation? if possible what framework change is required?
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Jul 27, 2009
We are developing an application that uses a GLSurfaceView to display 3D objects. We regularly get the "Application Not Responding" dialog. Inspection of the dumped threads reveals something that looks suspiciously like a deadlock. I have added the three thread dumps involved below. The first thread is the main application event thread, and it is waiting on a join with a GLThread.
The second thread is a brand new GLThread that is waiting for a semaphore lock presumably so it knows it has exclusive access to the graphics hardware. The third thread is probably a previous GLThread (the one the main thread is waiting for to finish), that is waiting to be notified. The strange thing is that the main application thread has just done a "mDone=true; notify();" prior to calling "wait()", so the third thread should have been awaken? .........................
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Dec 16, 2009
Look at this: http://nhenze.net/?p=172
They show that it is possible to put an GLSurfaceview on top on a SurfaceView. I hope it would be useful.
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Mar 18, 2010
I'm using GLSurfaceView to create a simple OpenGL drawing application. Since the elements drawn in each frame must remain on screen in order to be composed into the whole drawing, I don't use gl.glClear(GL10.GL_COLOR_BUFFER_BIT) at the beginning of each frame. But not clearing the color buffer leads to substantial flickering. Is there any way to eliminate flickering while still not clearing the screen at the beginning of each frame?
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May 12, 2010
I am able to get a GLSurfaceView to have a transparent background with:
CODE:............
when I set the Activity's window background to transparent and the GLSurfaceView is the contentView of the Activity.
But, let's say my GLSurfaceview is parented by a ViewGroup and I want GLSurfaceView bg to be transparent to see the Viewgroup's background - I am not able to do so with the code above. Is this a limitation or am I missing something?
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Nov 4, 2009
I have an application that uses GLSurfaceView to draw OpenGL ES graphics. This is all working (mostly) how I would expect.
Now, I would like to implement a screenshot feature. For normal views, it seems that the standard practice is to create a new Canvas with a Bitmap and then draw to that Canvas using View.onDraw(Canvas).
I've tried using SurfaceView.draw(Canvas) in a similar fashion, but it always results in a blank (black) image.
I've also tried using the drawing cache with the exact same result.
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Apr 12, 2010
how to draw text on GLSurfaceView in Android?
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Jul 22, 2009
How can one use a GLSurfaceView similar to a ViewGroup, in the sense of adding Views(CustomViews) over it? Is there any means to make the GLSurfaceView be the canvas on which the view draws its contents?
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Mar 23, 2010
I'd like to display some 3d object on top of the normal 2d ui layout screen. The 2d ui screen has background image, and GLSurfaceView is child of the content layout. I tried the same technique of the Translucent GLSurfaceView in ApiDemos sample, but GLSurfaceView clears all and shows black background. Code...
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May 13, 2010
I want to create a simple Map based application in android ,where i can display my current position.Instead of overlaying a simple Image on the MapView to represent the position, i want to overlay the GLSurfaceView on the MapView. But i don't know how to achieve this. Is there any way to do that?. Please anybody knows the solution help me.
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Sep 22, 2010
I am trying to merge two examples from the ApiDemos so one overlay over the other. 1. CameraPreview.java 2. TranslucentGLSurfaceViewActivity.java I guess GLSurfaceView is not really necessary, I saw demos that uses a GL layer as a Camera PreviewCallback, but since I am such a noob at OpenGL, I am kind of lost. Can someone points me toward the light (figuratively speaking)?
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Oct 2, 2010
I have a GLSurfaceView with a drawable as background, however only the background is visible when rendered without surfaceView.setZOrderOnTop(true)I need to avoid using setZOrderOnTop(true) because there are static TextView's being used on top of the GLSurfaceView. Any suggestions for getting this to work?
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Aug 10, 2009
I would like to use GLSurfaceView for my new cool application. But I am still hestitating because Android 1.1 and Android 1.0 do not have GLSurfaceView class. And another question, If I don't use GLSurfaceView, how can I use OpenGL with SurfaceView class?
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Jul 20, 2009
I want to load a bitmap on a GLSurfaceView.. I do it like this: Code...
But the bitmap repeats itself on the surface and is also inverted.. why is this.. How do i make it appear only once...kindly help!
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Apr 27, 2010
Is there anyone who knows how to overlay a GLSurfaceview on a Surfaceview? The Surfaceview is used for the camera preview..
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Mar 5, 2010
I am currently porting a 3D app on Android. This app consists of a 3D view (embedded in a GLSurfaceView) and of menu screens (for settings, search , etc.).
My main activity is the one containing the GLSurfaceView. It's always the root of it's task. The problem is that my GLSurface gets destroyed whenever I launch another activity and all the GL objects (VBOs, textures) that I created in the GL context get deleted/invalidated along. So whenever my users go in the menu, the 3D scene has to be fully reloaded. Wouldn't there be a way to prevent the surface's destruction ?
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