Android :: Using Selector To Change ImageButton's Background While Keeping Content Image

Apr 18, 2010

I am currently trying to customize ImageButton to show different draweables as background of the Button while keeping the image set via the src attribute.

That's my custom_button.xml:

CODE:..............

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Android :: ImageButton Flash Orange When Background Image Is Set?

Mar 26, 2009

I've set the background image of a custom ImageButton I am building, as well as setClickable(true) and setFocusable(true). The button is able to receive focus when I navigate with DPad/arrow keys in the emulator, however, it does not flash orange when it has the focus. It does not appear to change at all when it has the focus, in fact. When I remove the background image, however, the ImageButtons hold orange when they have focus.

What do I need to do to be enable an ImageButton with a custom background image to flash orange when it has focus?

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Android :: Change Tab Background - Selector

Jul 28, 2009

How to change the TabBackground in the different states (not the icon!) ?

my files:

CODE:....

Where should i call the xml file above?

I tried it in the TabWidget as src, but it doesn't work:

CODE:..............

So i tried to use a own theme:

CODE:..........

But i don't know, which resource i should use instead of "?"...

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Android :: ImageButton Selector - One Xml Per Button?

Jun 29, 2010

When using the "selector" to specify different images for buttons for different states, such as pressed, focused etc, do I have to write an xml file for each button? I have about 15-20 buttons in my app, so was wondering if there is a way to write just one xml and refer to parts of it?

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Android :: ImageButton Selector Doesn't Work ?

Feb 3, 2010

I am trying to make ImageButton for state of pressed, focused and normal.

I've read introduction of ImageButton from this: http://developer.android.com/reference/android/widget/ImageButton.html

I've saved selector XML file in /res/drawable/. Also set the android:src="@drawable/my_selector".

my_selector.xml file :

CODE:................

I think I've done correct ImageButton. But it didn't work for me.

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Android :: How To Change Background Image Dynamically?

Nov 18, 2009

we are designing the page and we need to change background image dynamically.Is there any way to load(or change) android application background image dynamically?help me from come out this problem?

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HTC Desire :: Change Wallpaper Background Image Into SOLID COLOR

May 16, 2010

Is it possible to change Wallpaper Background Image into SOLID COLOR only? I want change into totally black.

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Android :: Change Background Image Of Dialog Or View In Runtime?

Aug 9, 2010

I have a card game I created in android and it is possible to show the scores at any given time by clicking a menu option. I would like that scores dialog to show a different background image when it's loaded depending on factors like who's leading, etc. In my constructor, I have the following relevant code:

public ScoresDialog(Context context) {
super(context);

this.setTitle(R.string.scoresDialogHeading);
setContentView(R.layout.scores_view);
...
}

I have tried getting that view to change it in the showDialog method i wrote like so: findViewById(R.layout.scores_view).setBackgroundColor(Color.BLUE); However, I got a NPE... I tried moving this statement to the onStart method, thinking that the view is not yet initialized but got the same error... Any thoughts on what the right way to do something like that is?

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Android :: Background Color In A ImageButton

Jun 25, 2010

I put a background color in a ImageButton? How?

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Android :: Selector On Background Color Of TextView

Aug 28, 2010

I'm attempting to change the background color of an Android TextView widget when the user touches it. I've created a selector for that purpose, which is stored in res/color/selector.xml and roughly looks like that:

CODE:................

The clickable attribute of the TextView is "true", in case that's of interest.

When I assign this selector to a TextView as android:background="@color/selector",

I'm getting the following exception at runtime: ERROR/AndroidRuntime(13130): Caused by: org.xmlpull.v1.XmlPullParserException: Binary XML file line #6: <item> tag requires a 'drawable' attribute or child tag defining a drawable

When I change the attribute to drawable, it works, but the result is looking completely wrong because the IDs appear to be interpreted as image references instead of color references (as the "drawable" suggests).

What confuses me is that I can set a color reference, e.g. "@color/black", as the background attribute directly. This is working as expected. Using selectors doesn't work.

I can also use the selector as the textColor without problems.

What's the correct way to apply a background-color-selector to a TextView in Android?

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Android :: Way To Setup An ImageButton Background To Be Transparent

Aug 19, 2009

I want to be able to specify an android:src, but I want android:background="" - complaints that string types are not allowed when compiling.

I basically want a button without any background (but that *does* have a 'src').

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Android :: Fix Position Of A ImageButton Relative To Background?

Nov 16, 2010

How to fix the position/layout of a ImageButton/Button/ImageView relative to the background?code...

When I change the display resolution, the background_img stretch to cover the new area, but the ImageButton doesn't stretch and doesn't respect the bottom margin proportionately.

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Android :: ListView Item Background Via Custom Selector

Apr 1, 2010

Is it possible to apply a custom background to each Listview item via the list selector?

The default selector specifies @android:color/transparent for the state_focused="false" case, but changing this to some custom drawable doesn't affect items that aren't selected. Romain Guy seems to suggest in this answer that this is possible.

I'm currently achieving the same affect by using a custom background on each view and hiding it when the item is selected/focused/whatever so the selector is shown, but it'd be more elegant to have this all defined in one place.

For reference, this is the selector I'm using to try and get this working:

CODE:...............

And this is how I'm setting the selector:

CODE:.........................

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Android :: ListView - Style Of Rows With An Own Background And Selector

Apr 23, 2010

How to do a listview which looks like this? I'm interesting in the style of rows with an own background and the selector working fine.

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Android :: Manipulate Positions Of Background Images In ImageButton?

Jun 1, 2009

Is there a way to manipulate the positions of *background* images in an ImageButton?

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Android :: Keeping An Application Running In The Background

Jun 26, 2009

We have an application that connects to a device and therefore needs to keep running in the background even when there are no Activities active. What is the recommended way to indicate that our application is still active and for it not to be killed automatically?

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Android :: Set ImageButton's Image From Http URL?

May 11, 2010

Can I set an ImageButton's image from an http URL?

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Android :: How To Resize ImageButton To Fit Image Exactly

Jul 23, 2010

How to resize the imageButton to fit the image exactly..This is the code that i tried, but the image is placed at the position that i am locating using android:scaleType but i can't able to reduce the size of imageButton.

The code that i tried is ...

CODE:......................

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Android :: Put An Image From A URL In Imagebutton In Droid?

May 10, 2009

What I want to do is a database listview
With a small image button and text on the right side
The I want the small image to change with a URL given by
A text file but I am stuck and the 2 hour rule is up

For(file lenght)
So URL is www.site.com/images/(i++).png

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Android :: ListView - ExpandableListView As Well - Selector Highlight Problems With Custom Background

Jul 13, 2009

I have an expandable list with a custom adapter. Everything works great but there are two problems.

First whenever a group or child has a custom background color set the orange selector does not show up. If I dont setup a color the selector draws nicely and also the fade away for context menus works.

Second, some of my text inside a list item is linkified. Whenever a link is present the selector does not draw again. It seems that the click event is handled by the internal link view instead of propagating to the list view.

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Android :: Image With Button / Text With ImageButton

Aug 12, 2009

A 'Button' view comes up with text, while the 'ImageButton' widget comes up with an image but no text, is there a way to relatively easily (e.g. method calls, say), either:

1. Add text to ImageButton (like those buttons that appear in menu item/via the physical menu button)?

2. Add an icon/image to a Button?

without resorting to constructing a new button class? I.e. I could put text within the image, but then I can't use Localization properly/effectively.

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Android : Droid Home Screen Widget Support Background Selector In A TextView?

Nov 4, 2010

I have a TextView in my home screen widget. Can I use the following selector as the background of the TextView so the TextView can be highlighted when clicked? I know I can do it in Activity, but I am not sure about home screen widget.code...

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Android :: Setup Dynamic Image On Imagebutton In Phone?

Nov 11, 2010

I want to set image dynamically on the ImageButton in android. However, i have more than 200 images. what would be the good solution for that?

The best idea is that i can use the name of image to call different images. i.e. imagebutton.setImage("/res/abc.png");
however, it seems to me that it is not trivial to do so..

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Android :: Can I Programmatically Generate Focused Image For An ImageButton

Mar 6, 2010

I'm porting an application from iPhone to Android. The iPhone app has artwork for some dozen or more buttons in their normal and pressed state. That translated over just fine to Android. However, we of course currently don't have any images for the "focused" state.

Besides the work involved in creating all these focused button images, we're not sure exactly what color to set the focus too. Selection color varies from phone to phone, etc. We'd have to come up with some neutral "white glow" of some sort I suppose. Then the idea struck -- could we programmatically render a focus images for the buttons based on the current selection color? Have folks been doing anything like this in the Android dev community? Can you point me to some examples. A net search didn't turn up anything too useful, though perhaps I searched on the wrong keywords.

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Android :: Droid ImageButton - Can't Get Image In Center / Setting For It?

Mar 19, 2009

I want to create an Android ImageButton in the xml file with a background image, and a smaller icon on top of that, right in the center. For some reason, it's not obvious how to do it, and documentation is no help.code...

However, no matter what I try (putting "wrap _ content" instead of absolute numbers on layout _ height and layout _ width, the icon remains in the top left corner of the button. If, however, I have no background image (i.e. a system default white button), the icon does go into the center. The button also goes into the top left corner when I use a color instead of an image for the background.

Why does this happen, and how would I actually get the behavior I want-- that is, a background image with the icon in the center?

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Android :: Switch Image Of An ImageButton When User Releases Button?

Feb 7, 2010

I'm trying to make it so that as long as a user is touching the button, it shows one image, and when the user releases the button, it goes back to a default image.

I'm trying to use a selector to make this happen:

CODE:...............

I've tried a few things with the selector, but it always produces the same behavior: the button starts out with the default image, then I press it and it changes to the "record_on" image and it never goes back to the default image when I let go.

Is there a way to get this kind of behavior with an ImageButton, or should I be using something different?

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Android :: Change Selector On The Fly?

Jul 30, 2010

I have an image selector that has the "pressed" state set to a particular drawable. I want to give the user the opportunity to change this on the fly. However, I have found no way to programmatically get and modify a selector.

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Android :: Droid Widget ImageButton Loses Image When Screen Rotated / Fix It?

Apr 16, 2010

I have a widget on my home screen with several ImageButtons which have default background images. Through the configuration activity, I can change the image on any of the ImageButtons. The problem is that when the screen is rotated, the image on the ImageButton disapears and it changes back to the default image.

I don't know why this happens or how to fix it

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Android :: Change Tint Of An ImageButton On Focus / Press?

Jun 11, 2010

I have an ImageButton in my app and I need to change the tint of the image when the button is pressed/focused. I have the ImageButton set to get its src from an XML file which as follows. code...

However the tint isn't applied when the ImageButton is pressed or focused - the image just displays as normal. The color black is defined as #000000 as always. Any ideas?

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Android :: Setup An ImageButton To Change Only When My Finger Is Touching It?

Oct 26, 2010

I want to create an event to change what my image button looks like, but only when it is being pushed down. So far I have been using an onTouch listener, but that just changes it permanently. I can't find anything like an onKyeUpListener() type of thing for the button.

Does anything like this exist? code...

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Android :: Keeping Graphics Running Through Orientation Change

Aug 3, 2009

How does one create a graphics canvas that is visible by the user through orientation (port->land->port) changes? If one defines layout land and port, there is a noticeable pause during the switch. Yet, I downloaded a bubble level application that never pauses as orientation changes - even when it switches from a circular level (gravity vector through back of device) to a flat level (gravity vector through side or bottom edge).

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HTC Hero :: Music Selector Replaced Lock Screen Wallpaper / Change It Back?

Nov 19, 2009

For some reason, over night, my lock wallpaper has changed from the picture I had to the music control selector.
I have tried to change this back but it will not allow me to. Has anyone got any ideas?

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Android :: Create View With Background That Wraps Up All Content?

Mar 5, 2009

I'm trying to create a listview containing conversations in chat bubbles, and each chat bubbles are rows in the list view. So what I have is an avatar on the left, and a chat bubble on the right. Then in the chat bubble, I have a textview for name, a textview for content, and a textview for time. The problem is, I cannot adjust the height of the chat bubble such that the bottom edge is just below the textview for time. In the chatBubble, I have this line that does not work android:layout_alignBottom="@+id/timeLabel" because timeLabel is a textview created after chatBubble. If I place chatBubble tags right below timeLabel, the height of chatBubble will be just right because lf the layout_alignBottom, but chatBubble covers all the text created before it.

Is there a way I can create the chatBubble last, and bring the view to the background? Or is there a better way to do this?....................

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Android :: Modifying Adapter Content From Background Thread

Sep 14, 2010

I've read up quite a bit on the exception thrown while using BaseAdapter, but i can't seem to find an alternative solution: Make sure the content of your adapter is not modified from a background thread. What i want to achieve is to keep a copy of a message queue in memory, and use this message queue to populate the BaseAdapter for my ListView. The reason im doing this is that the message queue will keep getting messages from a socket even when the ListView is not currently present (for example a chat window).

The problem comes when i have the Activity with the ListView in foreground, BaseAdapter binded to the message queue's data, and a message comes in the socket. Adding the new message into the queue will throw the exception mentioned above. Unless i pre-populate my BaseAdapter with the message queue (as in the BaseAdapter having its own message queue) and updating both of them when a new message come in, i can't really find a way around this issue. I don't really want to double up the effort on keeping those 2 queues up-to-date like this, surely there is a better way of doing this? Send broadcasts around doesn't work either because of the potential delay in the adapter serving a scroll and the notifyDataSetChanged call is made.

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Android :: Does Change Background Will Change Padding Of Linear Layout

May 21, 2010

I have the following linear layout. What I don't understand is if I set the background to another image, the padding information are reset. Is there a way to prevent this?

<LinearLayout android:id="@+id/aPanel"
android:orientation="horizontal" android:layout_width="fill_parent"
android:layout_height="wrap_content" android:background="@drawable/bkground"
android:paddingLeft="15dp" android:paddingRight="15dp">

<!-- some children here -->
</LinearLayout>

I see the position of the children get shifted when I change the backround drawable of the linearlayout 'aPanel'.

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Android :: Change Source Image For Image View When Pressed

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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Android :: Change Background After Orientation Change

Jun 8, 2010

I have an image set as my background and when it is vertical, the image looks fine. However, when the orentation is changed, the image get streched out. If there a way that I can change the image based on the orentation of the device?

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Android :: Background Image In Opengl

Apr 18, 2010

Let me know how to set up a background image in opengl. You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscribe@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en

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Android :: Image On Background Of A Row Of A ListView

Oct 29, 2009

ListView Question! I know it's possible change the row color, but it's possible to put some imagem on background? And if yes, it's possible to create an imagem 1px and repeat-x or repeat-y like CSS?

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Android :: Set Background Image In ListView

Mar 29, 2010

I want have an image and i want to set it as a background of android list view. i have used android:background="drawable/image" but nothing happened. how to achieve this?

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Android :: Setup Image In Background

Apr 28, 2010

I am developing a live Wallpaper on android 2.1

I want to set in background a bitmap that i download on a server. I use canvas with the method setBitmap(Bitmap bitmap); but it don't work. I also try to set it in an ImageView in a different class of my live Wallpaper but it also don't work.

Have you got a solution?

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Android :: Centering A Background Image?

Oct 2, 2010

I have a background image about 100 x 100 that I want to center in an Android app. Is there a way to do this?

I'm thinking it would greatly help with orientation changes for simple apps.

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Android :: Background Image Size?

Feb 2, 2010

I have an image that I want to place on the background on my activity. For the G1 I would use a background of 320x480 but with the nexus 1 the resolution is almost double that. Should I just place the large image and make the smaller phones size down? I am trying to keep the size of my package down as much as possible.

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Android :: Set Image Background For Linearlyout ?

Nov 20, 2010

I want to set Image background for linearlyout in android ? can i ? if yes. how ?

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