I have an Overlays class named picOverlay which extends ItemizedOverlay<OverlayItem> that uses a drawable named ''overlay''.
I'd like for my application to change the drawable to let's say ''overlay_hover'' when the user touches the overlay.
Can I do this in the onTap method? Can someone enlight me a little bit on how to change the drawable that I'm actually touching?
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I'm working on an android application, and I have a drawable that I'm loading up from a source image.On this image, I'd like to convert all of the white pixels to a different color, say blue, and then cache the resultant Drawable object so I can use it later.So for example say I have a 20x20 PNG file that has a white circle in the middle, and that everything outside the circle is transparent.What's the best way to turn that white circle blue and cache the results? Does the answer change if I want to use that source image to create several new Drawables (say blue, red, green, orange, etc)?I'm guessing that I'll want to use a ColorMatrix in some way, but I'm not sure how.
View 3 Replies View RelatedHow do I change progress bar drawable at runtime? I have set of drawables and I thought setProgressDrawable would change the drawable but it does not seem to work on horizontal progress bar.
View 2 Replies View RelatedHow would I edit this tutorial so that it will grab images from the SD card? code...
Alternatively is it possible to make subfolders within R.drawable?
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 ?
View 4 Replies View RelatedI Have edited my framework ..to change drawable-nodpi to jelly bean , i have changed it but i want to also change Android 4.0: Ice Cream Sandwitch to Android 4.1 : Jelly Bean. how to do it ??
View 7 Replies View RelatedI'm using Google maps. I put the markers on map and my inherited ItemizedOverlay overrides onTap() method.
Markers are 32x32 images.
However, I can tap quite a bit away from the marker and still receive the event. This becomes a problem when markers are close to each other.
I have a MapView where I would like to be able to tap the map to create a new item at that location if there is no item there, or display the info about the item if there is.
I tried overriding both the onTap(int) and onTap(GeoPoint, MapView) methods but apparently if the second method is overridden the first never gets called (commenting one or the other lets each one work as I expected).
I thought about just checking if an item was at the location, but there doesn't seem to be any handy methods available to do that (other than iterating through the list of items and checking each manually).
I have a mapactivity with multiple ItemizedOverlays and a onTap method when the user clicks on the marker. I can show a toast message but i want to display a Dialog when the user clicks on the marker (so in onTap method). How can i do that?
View 2 Replies View RelatedI am wondering if I am going about this problem the correct way.I am making an app that places overlays on top of google maps.When you click on the overlay it should launch a dialog type window that will give you options on what to do with that overlay.It is the line startActivity where the app throws an exception.I did the setFlags because an error message said it was needed because I was trying to start the Activity while outside an Activity.That makes me think I am going about this wrong.I have 'MyActivity' listed in my manifest so I don't think that is the issue.I have searched for this problem on the internet and I can't seem to find anyone else running into this so that is another reason I think I may be trying to do this the wrong way.
View 3 Replies View RelatedI am attempting to launch a dialog type window when I click an Overlay that has been placed on google maps. I thought the way I would do this was Override the onTap() method, create an intent, and call startActivity on that intent as follows:
CODE:..........
It looks like the program throws an ActivityNotFoundException when executing that last line. The exception reads that if you try to start an Activity while you are not in an Activity you need to set the FLAG_ACTIVITY_NEW_TASK flag which is why that line is there. I have included MyActivity in my manifest.
'context' is passed to my class constructor that extends Overlay and is the MapActivity that I am using to display the map.
When I add a new item to my ItemizedOverlay the onTap display I have set appears X times, where X is equal to the number of items that I added. So for example, if I add one item and tap it, it the onTap method gets called once, and in the LogCat I get:
02-04 23:28:56.188: INFO/NotificationService(52): enqueueToast pkg=android.mapit callback=android.app.ITransientNotification$Stub $Proxy@4394c100 duration=0
If I add a second item and click ANY of the other items, the onTap method gets called twice and I get the following in LogCat:
CODE:.....................
If I add a third item and click ANY of the other items, the onTap method gets called three times and I get the following in LogCat:
CODE:...................................
Any idea why this would occur? I'm running into issues with it affecting other things like removal of items.
I looked for any information about onTap event processing for itemized overlays in this group. There is a lot of useful information but I could not find the answer to one question.
The tutorial by Mark Murphy on itemized overlays, http://androidguys.com/?p=1413
describes how to generate a Toast message whenever an onTap event occurs. In his case, the custom itemized overlay activity is included in the main activity. In my case, it is not. My custom itemized overlay activity is included in the application package as a public activity.
This means that the line Toast.makeText(NooYawk.this, items.get(i).getSnippet(), Toast.LENGTH_SHORT).show(); will not work "as is".
I have had trouble in correctly identifying the context for the Toast. Attempts to use the main class' (the one calling the custom itemized overlay class) context have not worked. I would appreciate it if anyone could suggest how I could resolve this issue. Incorporating the custom itemized overlay class in the main class is not a desirable option.
Alternatively, I would appreciate any suggestions for generating a display of the title and/or snippet information for markers on a map.
The onTap event works fine (Log.i statements in the onTap method display the correct information for each marker tapped)
I'm trying to display a popup in a MapView. I m doing this in myLocationOverlay.onTap() method. I got the initial popup to display correctly. I have a button in the popup to expand the popup by making some hidden view visible and changing the height of the popup like this..
but the height of the popup doesn't seems to change. Am I missing something here?
I have several Overlays drawn on a MapView with ItemizedOverlay, and an onTap that works when I first start my app. However, if I press the Back button on the Android then start my app again the onTap does not work at all. Other touch sensative operations work fine, like long press on the map and several face buttons. It is also fine if I press the Home button on the phone then go back into my app, so its only on the Back button. It will also work if I first open another app like the Maps app, then go back into my app, acting like a reset.
Overriding the onBackPressed method to move the task to the background also does not work, does anyone have any ideas what would cause this? It happens in both the emulator and on a real device.
I don't know if it will help but here is the relevent code:
CODE:...........................
I'm scaling markers on a MapView with the following code
CODE:.........
And:
CODE:.............
Which works, but the shadow below the marker has wrong offset when scaled. Also; i override the public boolean onTap(int index) in ItemizedOverlay to detect taps on the markers, but it seems inaccurate. I can click some range outside the marker and still trigger onTap...
I have an activity that has a button which opens a new MapActivity to select a location by tapping on the map.
The map has an overlay that overrides the onTap method to get the location but I want to return that location to the previous activity but, I don't know how to return the geopoint to the mapactivity in order to call the setResult() and finish() methods, because I can't call them from the Overlay.onTap method.
In the description of how to add a list of options to an AlertDialog the official Android documentation alludes to saving a users preferences with one of the "data storage techniques." The examples assume the AlertDialog has been spawned within an Activity class.
In my case I've created a class that extends ItemizedOverlay. This class overrides the onTap method and uses an AlertDialog to prompt the user to make a multi-choice selection. I would like to capture and persist the selections for each OverlayItem they tap on.
The below code is the onTap method I've written. It functions as written but doesn't yet do what I'd hope. I'd like to capture and persist each selection made by the user to be used later. How do I do that? Is using an AlertDialog in this manner a good idea? Are there better options?
CODE:.......................
Could anyone help me with my below program. I'm unable to put a transparent label containing the contents from my HelloGoogleMaps.java class (Hola, Mundo!) when i click the markers(the android icon) in the map. I would like to have the ontap event do it for different markers here so that that particular location details is popped up. It needs to be in a canvas display. Upon clicking this new canvas label, it should take me to a seperate activity displaying complete details. I'm using the sample program given in the Google Android Website http://developer.android.com/resources/tutorials/views/hello-mapview and i want to extended it to the next level. Import com.google.android.maps.GeoPoint; import com.google.android.maps.MapActivity; import com.google.android.maps.MapController; import com.google.android.maps.MapView; import com.google.android.maps.Overlay; import com.google.android.maps.OverlayItem; import android.app.Activity; import android.graphics.drawable.Drawable; import android.os.Bundle;
View 2 Replies View RelatedI've implemented a Class that extends Overlay and also override the onTap / onTouchEvent (tried both). Right now it seems like that event is triggered when you tap on the map regardless of position.How can I make sure that the event is triggered only when you tap over the overlay you have added?
View 2 Replies View RelatedI 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?
View 4 Replies View RelatedAccording 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.
View 3 Replies View RelatedWhen 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?
View 1 Replies View RelatedIn 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?
View 2 Replies View RelatedI 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?
I want to make a Drawable touchable for a component I am creating, does anyone know how to do that? code...
View 2 Replies View RelatedIs 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.
View 6 Replies View RelatedMy 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?
View 9 Replies View RelatedI 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.
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.