Android :: Nullifying Imageview Src?

Apr 4, 2009

I'm making a little card game in order to learn the more interesting stuff of the UI and I have a question:

I want to show 5 cards on the table, for that i have made 5 imageviews in the xml:

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

As you might notice here, i'm doing them with an overlap since the uer should be able to pick up the last card and should therefore see it, but the other 4 are just so he'll know what was thrown lastly. my problem is: in the begining the imageviews have no src, but once i give them an image source

using CODE:..............

I dont know how i can undo it - i can't set the imageResourceId to null since it is an int type so is there something like -1 or some constant value that means null? i know about visibility, i'd rather not use it here unless i really have to, since it'll require a bunch or refactoring that i prefer to avoid...

Android :: nullifying imageview src?


Android :: Imageview Ontop Of Another Imageview

Jun 15, 2010

I have a listlayout with items in it that looks like this:

There is first an ImageView (the light) and then two textViews. All of this inside a TableLayout. (source here: http://code.google.com/p/switchctrl/source/browse/trunk/android/res/layout/device_switch.xml)

I want to have a rotating animation of a loading indicator Ontop of this light when this particular device (light) performs an action or an action is performed on it.

How do I put an animation ontop of this light imageview?

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Android :: How To Get Every Row's Imageview

Nov 26, 2009

I am having custom Listview. Every row in listview contains image and textview.

After finishing the page I want to execute a thread which will get the reference of all the rows then will extract imgeview and set resource image as lazy loading image.

I just want to know how to get every row's image view so that I can set image resource in it.

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Android :: Possible To Use Url Image In ImageView

Nov 19, 2010

So here is my question. I am trying to use an online thumbnail. I can have looked around and have not found too much data on this. Can some provide me the simplest way to do this. Also If i implement a simpleExpandableListAdapter which is designed as a textView Adapter is there a way to force the image in?

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Android :: Get Color From ImageView - X/y

May 23, 2009

I have a ImageView with a Picture in it. When I touch the Picture through the TouchScreen, how can i get the ColorCode (eg. 0xff0033933) from the x/y Coordinate I clicked?

Something like: onTouch.GetColorCode (from the pixel bellow my finger)

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Android :: Hotspot In ImageView

Apr 20, 2010

how can I implement an imageview that has touch-sensitive hotspots so that when the user touches one, a dialog or something similar appears.

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Android :: ImageView In ListActivity

Jan 11, 2010

I have an ListActivity that I wan't to add a logo to at the top above the list but I'm unsuccessful. This is what my layout looks like at the moment.

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="fill_parent"> <ImageView android:id="@+id/logo" android:layout_width="fill_parent" android:layout_height="wrap_content" /> <ListView android:id="@android:id/list" android:layout_width="fill_parent" android:layout_height="fill_parent" android:drawSelectorOnTop="false"> </ListView> <TextView android:id="@+id/empty" android:layout_width="fill_parent" android:layout_height="fill_parent" android:text="@string/list_empty" /> </LinearLayout>

Then I add an drawable to the ImageView logo in onCreate. I've managed to show either the ListView or the ImageView but never both of them in the same LinearLayout. Is it possible to add other views together with a ListView?

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Android :: ImageView And ViewRoot

Apr 7, 2010

Question on an oddity I am seeing.

I have an ImageView that I am using to display a splash screen for a couple of seconds:

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

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Android :: Text On Top Of A ImageView

Nov 18, 2009

I'm using Android 1.6.

I'm wondering if there's a simple way to put text on top of an ImageView element. Specifically, I'd like to have text overlayed on top of a rectangle filled with a color gradient.

I have the following in my XML layout:

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

But the text specified in android:text doesn't show up in my view.

Any thoughts on how to overlay text on top of an image?

There might be a simpler way to do this, so I'm open to alternative suggestions but I haven't been able to find anything via the google.

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Android :: ImageView's Zoom In/Out

Mar 19, 2010

How can I Zoom In/Out with ImageView.

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Android :: GetAlpha For ImageView

Aug 3, 2010

How do you get the alpha of an ImageView? You can setAlpha, but I can find no way to retrieve it afterwords.

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Android :: How To Overlap Two ImageView

Sep 4, 2009

I want to overlap two imageView. I tried View.offsetLeftAndRight, but it does not work.

My code is as below:

code:.....................

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Android :: ImageView Can't Be Clicked?

Feb 28, 2010

How to make an image clickable?

I mean, I tried to use onClickListener and onClick but nothing seems to work....

OnClickListener is always underlined and the error says: "The type new DialogInterface.OnClickListener(){} must implement the inherited abstract method DialogInterface.OnClickListener.onClick(DialogInterface, int)"

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Android :: ImageView With Graphic From The Www?

Feb 27, 2010

I want to show a graphic inside my activity. A graphic thats from the www. Just like http://www.google.de/logos/olympics10-sskating-hp.png.

Wenn, in general I would download the graphic, convert it (maybe with photoshop or something), rename it (if neccassary) and copy it to my drawable folder. Then I can use its id inside my xml layout.

Now I want this procedure dynamically.

Which is the quickest way to do so?

I dont want to use WebView for this...

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Android :: Imageview Web Imageresource

Nov 28, 2009

I want to read image from web ex. http://www.abc.com/image1.jpg and dynamic set to imageview component.

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Android :: How To Use ColorDrawable With ImageView

Mar 30, 2010

I have a layout with an ImageView defined like:

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

Now I just want to set the imageview to be a static color, like red or green.

I'm trying:

CODE:.........

The imageview is just empty though, no color. The 45dip space is being used up though. What do I need to do to get the color to be rendered?

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Android :: How Do You SetLayoutParams() For An ImageView

Jun 3, 2010

I want to set the LayoutParams for an ImageView but cant seem to find out the proper way to do it.

I can only find documentation in the API for the various ViewGroups, but not an ImageView. Yet the ImageView seems to have this functionality.

This code doesn't work...myImageView.setLayoutParams(new ImageView.LayoutParams(30,30));

How do I do it?

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Android :: Get The Alpha Of An ImageView

Aug 3, 2010

How can I do this? There's a setAlpha but no getAlpha.

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Android :: Draw Onto A ImageView?

Aug 17, 2010

I studied the Androidreference for hours now, but don't really get the clue how to draw something (Text, Bitmap, Path ....) on a ImageView.

Should I extend View and use the onDraw()-Method? If yes, how can I draw on my ImageView?

Or is there any other way to achieve my goal?

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Android :: Zooming An ImageView?

Sep 11, 2010

This should be easy, but I'm having trouble figuring out how to zoom an ImageView. I have an ImageView inside of a ScrollView and a HorizontalScrollView. I floated a ZoomControls over the ImageView and now I'm trying to figure out how to actually zoom the image.

I was thinking I would just scale the Drawable inside of the ImageView, but I can't figure out an easy way to do this.

How should I be going about displaying an image that I can both zoom and scroll?

And yes, I know about WebViews, but it seems wasteful to load an entire WebView just to display one image.)

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Android :: Set A PNG File To An ImageView?

Sep 29, 2010

I have a file called nochart.png in /drawable.

How can I set this to an ImageView?

chartImageView.setImageDrawable(R.drawable.nochart);

Does not compile.

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Android :: Using ZoomControls With ImageView?

Mar 9, 2009

When I use MapView in place of ImageView, there is no compilation error, but the app never launches on emulator. I followed the example given on android developer website.

When I use ImageView, it asks me to cast the ImageView object before getZoomControls(). But it is of no use.

Why zoomcontrols work with mapview well, but not with imageview? As zoomcontrols, mapview and imageview all are subclasses of view, I expected the example of mapview to work with imageview as well. Is there anything that I am missing?

How else do I use zoomcontrols with ImageView?

Here is my code snippet:

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

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Android :: How To Keep Text On Imageview

Feb 23, 2010

I want to display text on image view.

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Android :: Load An Imageview By Url?

Mar 18, 2010

For example i have an image's url: http://java.sogeti.nl/JavaBlog/wp content/uploads/2009/04/android_icon_256.png

I want to load this link image into my imageview in my project.how?

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Android :: How To Clear An ImageView

May 18, 2010

I am resusing ImageViews for my displays, but at some point I don't have values to put it.

So how to clear an ImageView in Android?

I've tried:

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

None of them have cleared the view, it still shows previous image.

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Android :: Scrolling An Imageview

Jun 17, 2010

I have an ImageView that is twice the height of a normale screen ( 960 dip). I would like to scroll it nicely up and down on the screen. The bottom of the screen should contain a bottom. I have tried various combinations of ScrollView and Imageviews without any success. I have also thinkered with the :isScrollContainer attribute without results. Anyone knows how to do this?

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Android :: Imageview Layoutparams In Dip?

Aug 26, 2010

I'm using the following code:

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

But as you can see, it is setting the layout dimensions in pixels.

Does anybody know how to do the same thing but in "dip" ?

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Android :: Buttons Above ImageView?

Aug 26, 2010

I've been stuck on this for a while so I thought I would ask. Previously I had an ImageView with buttons underneath. But I would like to have the buttons on top, and the ImageView underneath the buttons, but can't figure out how to do it. Here is the XML I have at the moment. Does anyone know what is wrong?

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

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Android :: Get Imageview In Code?

Oct 17, 2010

How can i get a variable on the imageview that i have defined in a layout.xml in the code?

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Android :: Get Dimensions Of ImageView?

Nov 5, 2010

I would like to find the dimensions of an ImageView to use to scale a Bitmap, prior to to calling view.setImageBitmap. ImageView.getWidth and ImageView.getHeight return 0 if no image has been set. (Presumably because the ImageView has not yet been measured?). Is there anyway to determine the dimensions of the ImageView prior to setting the Bitmap?

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