Android :: Can't Load Drawable Object / Want To Know Cause Of It
Oct 15, 2009
There are several custom-made graphic objects (.png files) included in the project inside res/drawable map.
All elements are normally loaded and displayed in the user interface except two icons and so far haven't figured out what causes the problem.
The code which doesn't affect the user interface as it should is...
In both cases there is only ic_volume_small displayed on the screen and the Variables window in the IDE displays the following:
R.drawable.ic_volume_small = Class not
loaded : net.client.android.R$drawable
R.drawable.ic_volume_of_small = Class
not loaded :
net.client.android.R$drawable
The method (member of IconImage class) which should change the icon image is the following code...
Does anyone know what could cause the described problem?
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Oct 18, 2010
How can i set the opacity of a Drawable object?
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Nov 26, 2009
In my application, user can click on a button and then he can select a picture from his gallery. This image is then displayed.
However, when the user performs 3 or 4 times this operation, the following exception is thrown, due to memory allocation problem code...
Here a sample of my code ...
Is it possible to force object (here the Drawable object) to be released from memory?
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Aug 21, 2010
I'm designing a custom view which is an X/Y Plot. It's a moving graph that scrolls to the left with time and new Y values are continuously coming in at 10 per second.
I've been able to make it work with an array of integers where the array index is the X value and the integer value is the Y value, but this seems horribly inefficient (Because every time it comes time to re-paint, I have to loop 800+ times to paint the graph). Then we do it all again 10 times a second. yuck.
Can anybody think of a paintable object that I can draw points to and perform some kind of scroll transformation and then just draw the new points each time, rather than the whole canvas?
Any other ideas out there?
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Jun 12, 2010
I need to create a map with items on it (the map consists of a drawable object, which represents a room) and I thought about using buttons with background images for the items so that they are clickable.
I guess the AbsoluteLayout fits here the best, but unfortunately it's deprecated. What layout would you recommend me for this kind of application ? Is there another layout which supports X/Y coordinates ?
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Aug 23, 2010
I need to know how he takes drawable object. I'm collecting some ImageView objects in array, they have background images that are rather big in resolution so they take lot of memory...
I have read somewhere that it will automatically create image with resolution that my imageView have, so i think it will take less memory than first one. Please tell me, if i set scaleType property, will it scale that image? Will that help me to save memory?
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Mar 16, 2010
I need to create a object Image from import javax.microedition.lcdui.Image; using a file .png placed in drawable folder. How can i do that?
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Mar 2, 2010
What is more expensive to load in a Gallery, a Bitmap or Drawable???
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Aug 24, 2010
Is there a way to load an image file into an ImageView object, and then define a transparent color for this object?
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Jul 11, 2010
In my Android project, I want to loop through the entire collection of Drawable resources. Normally, you can only retrieve a specific resource via its ID using something like:
InputStream is = Resources.getSystem().openRawResource(resourceId)
However, I want to get all Drawable resources where I won't know their ID's beforehand. Is there a collection I can loop through or perhaps a way to get the list of resource ID's given the resources in my project?
Or, is there a way for me in Java to extract all property values from the R.drawable static class?
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Oct 19, 2010
I am running my application in the emulator using a high density skin (like WVGA800). However the ressources in my application are loaded from the drawable- mdpi folder instead of drawable-hdpi ... what else should I do so that android use the correct folder ?
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Sep 9, 2009
I want to do some automated testcase with Instrumentation . Suggest that my AUT has 2 Activity. After clicking the button in ther first Activity, the second one will be shown with new content base on what we enter in the first Activity.) Instrumentation provides us the function called startActivitySync() and return the Activity object for processing. My question is how we can get the pointer of the second Activity after the it is shown by clicking the button on the first activity.?
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Jun 8, 2009
I would like to convert a Picture object to Bitmap object in memory, without writing data to disk.
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Sep 21, 2009
I have an Activity that running on system. I can get the Intent that is used to start the activity. But i don't know how to get the Activity object from the Intent object or something else. Can anyone tell me how to do this??? Note that, I don't use Instrumentation object.
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Oct 22, 2010
I have been assigned the task to use an android tablet to run a single app in an enterprise setting. Ideally, when one switches on the tablet this app should be loaded perhaps during startup and the user need not step out of this app. The app logic itself is rather easy but I am wondering if it is at all possible to load a single app during load and not allowing the user to step out of it.
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Sep 4, 2010
Is it possible to load a layout XML at runtime and load into activity?
In my app, I have various types of data like Person, Company, City, etc; The requirement is to dynamically load the layout, find views by tags (property names like Person.name, Person.address) and then fill in data. For example, if user has selected an object of type Company, we want to load a company.xml layout, inflate it and then associate various properties (company name, company slogan, city, address, revenue) to tagged views. One possibility I see here is - each view in the layout will be associated with property-name as tag and then appropriate data will be loaded in appropriate views.
What should be the best design you would recommend?
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Feb 18, 2009
I am trying to get a FileInputStream object on an image that the user selects from the picture gallery.
This is the android URI returned by android.provider.MediaStore.Images.Media.INTERNAL_CONTENT_URI content://media/external/images/media/3
When I try to construct a java URI object from this object, I get an IllegalArgumentException with the exception description Expected file scheme in URI: content://media/external/images/media/3 whereas the android URI shows the scheme as content
Never found a solution for the original question. But if you want the byte stream of an image in the pictures gallery, this piece of code will do that.
CODE:...................
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Aug 25, 2010
I am new application development. I am using Eclipse for making applications. When trying to create new project using Eclipse It is not creating simple res/drawable/ instead its creating three drawable folder. i.e. 1] drawable-hdpi 2] drawable-ldpi, 3]drawable-mdpi What is this all three for? General scenario as per Google it needs res/drawable/ to save icon image. Now on Eclise where to save icons? On all folder or?
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Oct 19, 2010
According to official documentation Google says that "Once you've defined your Drawable in XML, save the file in the res/drawable/ directory of your project." is the way to add a XML drawable to the project. But when I created the project ADT created 3 different drawable folders for mdpi, hdpi, and ldpi. So when I wanted to create my XML drawable, I right click on my drawable-hdpi folder and select "Add new Android XML file", and there I have to select what kind of XML file I want to create, but there isn't "drawable" to select. If I create new text file and save it as button_drawable.xml Eclipse says that there is an Error in the file and that It can't build my project.
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Oct 3, 2010
When i have an ImageButton and a drawable and i want to do something like the Drawer or Twitter where when i press the button and the corner of the image is highlighted over the edge, in drawer its yellow, in twitter its white. Like the one below.How do i set my drawable without using a lot of images?
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Feb 8, 2010
In this linked image , I see the button on the right quite often in a lot of apps. On my Moto Droid, it is used extensively in the settings app. It is also used as the default AlertDialog icon. Can I use this via a android.r.drawable?
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May 26, 2009
I created a new Drawable with: Drawable dx = resources.getDrawable(R.drawable.mydaysminipic_ov); dx.setColorFilter(0xff00ff00, Mode.SRC_ATOP);
and for: updateViews.setImageViewResource(predefinedDraw, --> ID from dx); I need the ID from it... but how to get?
Or any other Idea how to assign my Drawable dx to the above predefinedDraw?
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Jan 9, 2010
I want to make a Drawable touchable for a component I am creating, does anyone know how to do that? code...
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Sep 5, 2009
Is it possible to convert a Canvas to Drawable?I may be really off in my solution, so if you have a better suggestion, please do tell me. This is what I'm trying to do.I'm trying to create a custom RadioButton. to set different states of the radio button, I need to use this parameter and one of the parameter to addState is Drawable. I know I can easily provide an image file and use it as a Drawable, but I want to do some image manipulation to the image before using it.There is a tutorial in ApiDemo called AlphaBitmap. It uses the onDraw method of a View to change a PNG file to full red and draw something with a gradient. So I customized it to shade an icon with gradient. So the problem now is that this is a View, and the View works perfectly fine if I add this View to the main view. But i want to convert this View to Drawable so I can use it as one of the parameter in addState. What I really want to achieve is to have different colour shades for different state of the RadioButton without providing different images to do so.
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Aug 10, 2010
My app has loads of images in the drawable folder, and I want to organize them into sub folders to make them more manageable. When I create a new folder, and move the images, they are no longer found (and not compiled into the R.java file). Can this be done, or do all my hundreds of images have to sit directly in the drawable folder?
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Oct 25, 2009
I have a gridView generated using BaseAdaptor. (and implementing methods getView() , getCount() ,...) My problem is that i want to specify a drwable image for each ImageView created using BaseAdaptor.
i tried this line: myBaseAdapterInstance.getView(i, null, gridview).setImageDrawable(R.drawable.myimage);
where i is the position of the ImageView that i want.
But myImage isnt displayed on the gridView.
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Oct 7, 2010
I tried replacing scrollbar image with another drawable,setting scrollbar to a listview,but scrollbar image is appearing very weird,it is stretched vertically. I am setting to list view as android:scrollbarThumbVertical="@drawable/scrollbar" android:scrollbarTrackVertical="@drawable/scrollbar"
Is there any other attribute i need to set to make image appear properly.
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Feb 14, 2009
I am trying to setup a selector drawable in my asset file like this: * 2 different images for 'on'/'off' mode in rest mode (i.e. it does not has focus) * another 2 different images for 'on'/'off' mode in focus mode (i.e. it has the focus). In my case, the rest mode works, but the 'focus' mode does not. Can you please tell me what am I missing in the focus mode? Code...
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Feb 22, 2010
I have built android 2.1 on freescale's i.MX platform. But after running Gallery3D, it will crash with the log of failed to load resource. I found that the whole drawable-hdpi/ (it really contains in the Gallery3D source code res/) is not in the apk package, and cause lack of drawable-hdpi/icon_cancel.png. The apk only contains drawable-mdpi/ and drawable/. My question is why the drawable-hdpi/ resource is dropped when building apk? Per my understanding is that, which drawable-* resource loading is determined on runtime, and all the drawable-* should be in the apk package.
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Nov 26, 2009
Is there a way to detect whether a image was pulled from the folder res/drawable or res/drawable-hdpi?I am trying to save space and have a program that is using some hdpi bitmaps and some mdpi bitmaps. When an image is placed in drawable-hdpi it automatically replaces the mdpi version. I need to know when this happens beacuseI am using bitamp.resize() to fix the image sizes.The problem is that the getDensity() method (in the if statment after the && ) returns the screen density and I need the original bitmap density. This allays matched the screenDPI and returns false. I have a lot of artwork and do not want to duplicate everything for every size screen. I am trying to just create hdpi bitmaps for the ones that don't look good when re-sized.
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