Android :: Can't Get Theme Attribute References To Work In Android
Feb 26, 2010
I'm very new (second day!) to android and working my way through the dev guide. There, it says that you can reference attributes inside the current theme from your XML by using the form?.If I try to build this, I just get "No resource found that matches the given name (at 'textColor' with value '?android:textDisabledColor')
Given that this seems pretty basic stuff, and yet I can't find any references to similar problems elsewhere, I must be missing something obvious or misunderstanding something simple. Can anyone tell me what it is?
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Oct 27, 2010
I'm in the middle of implementing themes for my application right now, and everything's been going really smooth until as of late. I've been using the android:background="?thin_border" tag to provide a background for linearlayouts with items that I want visually grouped together. The problem I'm running into is when I try to use this tag in an xml with a custom class as one of the elements, and try to add this background tag.
I've got an xml file that looks generally like so:
CODE:.................
and the custom class has two constructors:
CODE:........
with some other functions that store values, manipulate the data, etc. The custom layout class is only ever called directly in the xml, and the xml is inflated like so:
CODE:...........
The problem I'm running into is that I'm getting these error messages:
CODE:.................
The error seems to be caused by the android:background="?thin_border" tag. If I remove it from the layout, it inflates fine, and the program continues on. As soon as I add it back in, I get these errors and the program stops.
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Jun 3, 2009
I finally decided to use styles and themes instead of tediously setting attributes for each individual view. I was able to get the style to work when I set it on android:textAppearance, but when I try to just set it right on the style attribute like below, it no longer applies.This is happening to me for Buttons as well as TextViews. What I want is to be able to have a few different styles for text views and buttons and then just set the style on each button or text view.The style will need to define textSize, textColor, background and maybe a few others.Since background and some other things are not textAppearance,I need to use the general style attribute.
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Apr 3, 2010
I have problem to solve. I have listview in which android:background="#FFFF7W" value I would would like to put it in the android:cacheColorHint= "the value of the android:background".If anybody put some light how to refer the other attribute value to another attribute of the same element would be grateful.
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Jan 25, 2009
I have a PreferenceActivity defined in the manifest with android:theme="@android:style/Theme.Dialog. The theme works well with the first settings screen, but not with the child PreferenceScreen elements (if I have several screens in my preferences). The child screens have the default Theme applied in this case.If the theme is changed to Theme.Light or the default, it works well for all the screens(parent and children included)Is there a way to apply the theme to the children, or is this a BUG ?
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Apr 28, 2009
When apply the white theme, the text views and scrollviews display black background....and its very hard to read the text. The same app works fine on the 1.1 SDK. I am running the application on the Dev Phone (but emulator also have same symptoms)
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Oct 10, 2010
Is there a theme that would work for UD 8 that would give me the sliding application drawer that 2.1 had?
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Nov 15, 2010
I ACCIDENTLY INSTALLED A THEME AND MY EVO WILL JUST BE STUCK ON THE FIRST WHITE SCREEN. NOTHING EVER HAPPENS. I FORGOT TO DO NANDROID... WHAT SHOULD I DO TO GET IT BACK TO WORK!
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Apr 20, 2010
I have a static Preferences class that hold some application preferences and stuff like that. Is it ok to store reference to ApplicationContext there? I need that reference so i can get cache folder and stuff like that in classes that don't inherit Activity.
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Aug 11, 2010
There's a bug in my network code so that when the server's not available the Android client tries over and over to connect. On 1.5 (emulator) this results, within a minute, in an "Excessive JNI global references" error where the leaked object is a small (20 byte) boolean array. The same code on emulated 2.1 runs for as long as my patience lasts. Is there any possibility the leak is in my code and not an Android bug that's been fixed since 1.5?
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Sep 10, 2010
I'm trying to create a basic AlertDialog using an activity with a theme of Theme.Dialog.What I want is for there to be a horizontal bar between the title and the message. However, the bar is not being resized correctly. Rather than being the width of the activity, the bar is the width of the message text. This means that if the activity is being expanded by the message, then the bar will fill the whole activity, so it looks correct. However, if the message width is less than the activity width, the bar only displays above the part of the activity with the text. I've tried every single combination of "fill_parent" and "wrap_content" that I can think of, and none of those work.I've also tried using RelativeLayout and placing the bar above the message text, but that also doesn't work. If I use the RelativeLayout approach and set the bar to fill_parent, it causes the activity to expand to fill the whole screen width, which is also undesirable. Ideally, I want the text placed, the activity width computed, and the bar resized to that width (without affecting it). Is there some way to flag a view to fill the parent view but not to affect its size?
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Jul 15, 2009
I use themes in my apps, which generally just extend android:Theme and then set a bunch of styles. I use dialogs made from layouts, but since I set the theme for the application, they have inherited all of the regular styles and no longer carry a border, etc. My question is: How do I say, "I want everything to use this theme which extends Theme, except dialogs, which should use this other theme that extends Theme.Dialog"? It seems like that's how things work by default but when you set the theme to your own, you lose the dialog theme!
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Mar 6, 2009
I've extended Theme.Dialog to use a different color as per the sample in the ApiDemos project but for some reason it does not use the theme properly in my project. I created a new project and it works perfectly fine there. The main problem here is that it does not show as floating in my project. Instead, it sets the rest of the screen black except for what would be the dialog window, where it uses the correct colors, etc. Any ideas? I am beating my head against the wall here.
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Nov 5, 2010
I wonder if it's possible to reference a XML string value in another XML String resource.But in case of an concated resource string, I found no solution yet,I would like to keep the string references in the string.xml file itself.
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Jun 25, 2010
I'm writing some stuff in java and i ran into some problems lately. cut short, i need to compare an object i created to another instance of this very class i instantiazed before with different data.
looks like this:
CODE:........
with a class a:
CODE:..........
The problem is, that i end up finding out that the values from newA are always equal to those from oldA. so i guess sth went wrong with passing the references of the objects in the last line of the loop...i thought java always passes references of objects unless an explicit copy() is called? if this does matter: this code is running on android - don't know if the dalvik vm messes aroung with this...
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Jul 21, 2010
I would like to add an HTML resource to my Android project with references to other resources (mainly drawables).
Where should I put it and how do I reference other resources from it?
Is there a particular way to pass the HTML resource to a WebView?
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Jul 27, 2010
I've read that it is a mistake and a source of memory leaks in Android application to keep a long-lived references to a Context.
But I don't understand if it is ok to create an class that looks like this one:
CODE:..........
And call it from an Activity:
CODE:.................
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May 11, 2010
I'm currently working on Android NDK, porting my libs, and I'm using SWIG (Simplified Wrapper and Interface Generator) that is a great tool to generate JNI code around my C/C++ headers for Java.
However, there is a big issue using it on Android, 'cause of incomplete JNI support : 'Weak Global References' are missing. Unfortunatly, SWIG is waiting for a full compatible Oracle/Sun JVM, and use this feature with its 'director' option (for proxy class creation).
For now, I comment each time, in a (kind of) bad way, the use of weak global references in my generated C/C++ wrapper files (4 lines in my case). I think it is really a shame that we can't use (one of) the best wrapper with Android NDK just for one missing feature.
I read that Google Team will add it in future release : "NewWeakGlobalRef and DeleteWeakGlobalRef are not implemented. The VM supports weak references, but not JNI "weak global" references. These will be supported in a future release." (http://android.git.kernel.org/?p=platform/ dalvik.git;a=blob_plain;f=docs/jni-tips.html;hb=HEAD)
So my question is, does anybody know when 'Weak Global References' will appear in Android NDK ?
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Nov 24, 2010
I am working on a system on which currently Linux kernel and microwindows windowing system is running. Code of current Linux system drivers is available to me. I want to port android on it, just as a hobby project.
can you please tell me what all understanding of linux-kernel is required to port it?
Please give me references (Books, Tutorials) to build-up understandings.
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Mar 14, 2010
I need to create paused analog clock. Since I have never done any graphics/drawing before I am customizing Analogue widget defined in the core/java/android/widget.
The problem is when I create the class in my project following are the unresolved references: mContext com.android.internal.R mRight mLeft mTop mBottom
I know the most likely cause is com.android.internal is private and I need to use public but the problem I do not know what the public equivalent is. I have tried substituing it with android.R but that doesn't seem work either.
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Dec 8, 2009
I'm working on an application that requires non-serializable objects to be passed between Activities. The following page suggests using a HashMap of WeakReferences to accomplish this:
http://developer.android.com/guide/appendix/faq/framework.html
Is this solution safe? I know Activities are completely destroyed and recreated when the screen orientation changes. Couldn't those weakly referenced objects get GCed in the split second when the screen is rotated, since they wouldn't be referenced elsewhere at that point?
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Apr 26, 2010
While researching how to create custom compound views in Android, I have come across this pattern a lot (example comes from the Jteam blog)I mostly understand how this is working, except for the part where inflate() is called. The documentation says that this method returns a View object, but in this example the author does not store the result anywhere. After inflation, how is the new View created fromt eh XML associated with this class? I thought about assigning it to "this", but that seems very wrong.
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Sep 30, 2009
I'm trying to compile an app via Android 1.6, and got errors shown below. It said some strings in TextView and Button are not localized. I know how to fix them. It's easy to add them to strings.xml. But I still doubt why I need to localize every string. I don't think the strings like '1024' (pure number) or '80 x 25' need to be localized. Can't I set some strings to be non-localized? I searched SDK 1.6 documents, but can't find any help.
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Feb 19, 2013
I have to develop one android xml parsing use sax .This is my xml feed:
[HIGH]<root>
<Categories>
<Category name="book">
<Articles>
<article articleid="170" title="java programming">
<thumb_image>
[code]...
how can i get the image url from thumb_image tag alone.
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Apr 17, 2010
I'm searching for some good material on android threads but I couldn't find references for a complete description about this subject. So if you know any valuable reference please point them to me.
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Aug 15, 2009
Can anyone tell ,what are the steps to add a new attribute for ViewGroup.I added a attr in framework/core/res/value/attr.xml under"<declare-styleable name="ViewGroup">" but its not reflecting in R.java after building.
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Jul 2, 2010
Is there an easy way to grab a attribute value from an xml item in your Java class definition?I know you can grab similar xml attributes from the converted objects using getters/setters like View.getText().I'm just wondering if there's a way to grab an xml attribute right from the item itself.
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Sep 7, 2013
I set the tag attribute on a custom widget in my layout XML:
Code:
<com.louisvillemade.thegirlyapp.widgets.GirlySeekBar
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="40dp"
android:layout_marginRight="40dp"
android:layout_marginBottom="16dp"
android:gravity="center"
android:layout_gravity="center"
android:max="19"
android:tag="attr_2"
android:progress="0"
[code]....
How do I grab some of the XML elements, like the android:tag element (set to "attr_2") through reflection of seekBar? Calling seekBar.getTag() returns null and I can't seem to find any methods on the Drawable that will give me what I want.
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Sep 2, 2010
I've been trying to diagnose a memory leak in an Android application I'm writing. I got a heap dump loaded into Eclipse, but the results I'm seeing are very curious. There are some 20,000 instances of an exception (specifically, LDAPException from the UnboundID LDAP library) in the heap with no inbound references.
That is, they show up at the root of the dominator tree. The OQL SELECT objects e FROM com.unboundid.ldap.sdk.LDAPException e WHERE (inbounds(e).length = 0) returns over 20,000 results, totalling to nearly all of the heap. And yet, the GC runs before the heap dump and I can see that it's running in the console, repeatedly, during the execution of the leaky code. If these instances have no inbound refs, what could be keeping them alive?
I also tried doing a "shortest paths to GC" query. It shows one LDAPConnectionReader row retaining 2 instances, and ~20k LDAPException @ <addr> unknown rows with various hex addresses.
Update: I haven't had time to further diagnose this since posting it, and the bounty I posted is ending before I likely will. I'm awarding it as best I can now, lest the points go to waste. Thanks to everyone who looked into this! I will come back later and update again with the results of further diagnosis, when life is a little less hectic.
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Aug 13, 2009
This question is about setting the "style" attribute programmatically, but it needs a bit of background first. I wish to create a custom component which will looks like a EditText box but not actually allow direct input. (When focused or touched it will pop up a dialog to allow data to be entered).
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