Android :: Draw ImageView At Specific GeoPoint On MapView
Oct 1, 2010
Trying to solve my current problem of drawing an image on an Android MapView and then animate it to represent a moving object, I decided to try to just draw a raw ImageView at a GeoPoint on the map and then try and animate it from there.
This is the code I put in my map activity (extends MapActivity)'s onCreate method:
CODE:..............
Again, I'm just trying to draw the static icon and animate it from there. I can already do this with an ItemizedOverlay, but as far as I can tell, I can't animate the elements of an AnimatedOverlay the way that I can animate a view. Thus, using ImageView.
But the icon doesn't show up.
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Oct 20, 2009
I have been able to draw a map using 'MapActivity' class. Am unable to render 3D graphics on the Map. Is there any way to draw something on the foreground with the Map as the background?
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Feb 14, 2010
i have a problem with my mapView. my app reads "some" gps points out of a file and i want to draw a route (drawing lines between the gps point). If my file contains many gps points, my app works really slow. i think its working slow, because i draw all overlays. now i want to check, whether a point is visible in my mapView or not. so i have to get the mapCenter and Lat/lon span (getLatitudeSpan,..) !? how and where must i save my points and how can i check all my points (after my mapCenter has changed for example). Shall I save my points in a list (in my Overlay class??) and iterate through every list item and check, wheter its visible or not?
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Nov 12, 2009
I'm trying to draw some text onto an MapView on Android. The drawing of the text goes fine, but it's very hard to read the text because it's white with no black border (like the rest of the text that appears naturally on MapViews to denote cities, states, and countries). I can't seem to figure how to draw the text with a black border. This is the sort of code I'm using right now (this is just example code, found in one of my overlays):
@Override
public void draw(Canvas canvas, MapView mapView, boolean shadow) {
Paint textPaint = new Paint();
textPaint.setARGB(255, 255, 255, 255);
textPaint.setTextAlign(Paint.Align.CENTER);
textPaint.setTextSize(16);
textPaint.setTypeface(Typeface.DEFAULT_BOLD);
canvas.drawText("Some Text", 100, 100, textPaint);
super.draw(canvas, mapView, shadow);}
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Aug 27, 2010
I am developing an application for the Parisian Metro. One of the functions is a map where you can click the metro stations and see what are the metro lines, and when are the next 4 trains on this station.
I have hence created a MapActivity and an ItemizedOverlay classes.
On my device it is working perfectly, but I am getting some logs from the users with a crash, and I really don't understand what's wrong.
My map activity adds ONE ItemizedOverlay that displays a blue dot for the current user location. This overlay also listens to onTap, which depending on the coordinates of the tap, will try to find metro stations (for which I know the lat/lon coordinates). This is working perfectly.
The stack trace of the crash is:
CODE:.....................
Sometimes it comes from different lines but it always finishes crashing at OverlayBunde.java:42
As is does not mention my code, I don't know what's wrong.
You can get the source code of the MapActivity and the the ItemizedOverlay: http://code.google.com/p/metroparis/source/browse/trunk/src/org/bicou/metro/
The activity class is ACarteStations and the overlay class is StationMetroMapOverlay.
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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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Aug 26, 2010
My Android application has a MapView. I want to divide that MapView into a grid according to latitude and longitude, and shade the different cells of that grid different colors based upon a certain criteria. What's the simplest way to do this?
I could create semi-transparent, solid-color PNG Drawable rectangular images and put them in an ItemizedOverlay centered on the central points of the cells, but then the rectangles would grow and shrink as the user zoomed in and out on the map. I could extend MapView and override the zoom functions so that the rectangles got re-sized when the user zoomed, but that seems really complicated for something that should be simple! Please tell me a better way to do it?
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Aug 1, 2010
I wonder, how can I draw a nice flight route between 2 points on a google map's MapView? look at this: http://maps.forum.nu/gm_flight_path.html
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Aug 2, 2010
I am writing a application that needs to draw a "route" comprised of lots of GPS points (long+lat). The points are close together and don't follow roads, simply drawing a line between each point is ideal.
The current implementation I have is very slow as I am looping over all the GPS coordinates and creating a new Point and overlayitem in an itemized overlay. This takes around 20 seconds for it to load all of these points and draw them to the mapview. Is there a way in which I can construct a series of lines or point from the GPS coordinates and draw them onto the mapview?
Example of current implementation:
CODE:...................
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Jun 30, 2010
I'm looking to draw a cube at specific co-ordinates. I've got all 4 corners and the centers x/y value. I now want to construct a cube at those co-ordinates. Does anyone know of any tutorials or have any information on how I would go about said task?
Ive got the following code. I'd like to map each of its corners to a specific x/y co-ord...
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Nov 18, 2010
I need to place additional image button "my current location" to a top right corner of the MapView. Any ideas how to do this?
Making the questions generic:
1) According to MapView documentation it is possible to attach additional view objects to a MapView. How to do this?
2) How to place such additional controls into specific position on MapView?
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Oct 13, 2010
I have been looking this but haven't found a concrete example is there a way to click a specific point on a Map and then draw a overlayitem it?
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Apr 5, 2010
I have a custom component which consists of 2 text view and 4 toggle buttons. I want to draw this view at some specific position on the screen. How is that possible?
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Jul 16, 2010
I had found a lot of stackoverflow post about save an Activity and the reload it.
My question: How can I have an Activity with an MapView and after reload the same mapview?
What is the best way to switch between activity and views?
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Sep 5, 2010
In my android application I use this method in "draw" Overlay class for draw route on map. Can someone tell me if this method is good (in terms of performance) for route draw on map or I must to put code in Thread ??
I'm new to android.
public synchronized void draw(Canvas canvas, MapView mapView, boolean shadow) {
if (pointsAndTimes.isEmpty()) {
return;
}
Projection projection = mapView.getProjection();
Paint paint = new Paint();
paint.setARGB(250, 255, 0, 0);.............
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Jul 19, 2010
I'm curious,why does GeoPoint uses micro degrees ( Ex: lat/lng * 1000000 ) versus just a double lat/lng?
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Jan 27, 2010
I need to draw a circle on my map. I have the GeoPoint and I have the radius of the circle in meters. How do I add a distance to a GeoPoint and get a GeoPoint as a result?
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Feb 11, 2010
Say I have mapview control in my Android app. If I know a landmark exists at a certain latitude and longitude, how can I determine if that landmark is currently viewable on the user's screen? Is there a method for getting the coordinates for the top left and bottom right corners of the visible area?
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Nov 10, 2010
I have an ArrayList of type GeoPoint.
private List<GeoPoint> points = new ArrayList<GeoPoint>();
I want to pass points to another Activity and retrieve the data in that activity. How do I do it? I know I have to use the parcelable but I searched, but could not find a way to pass ArrayLists.
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Aug 12, 2010
I know this is a very noobish question -- but what is the best way to convert a GeoPoint to a Location on the Android platform.
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Aug 8, 2010
I have the Uncertain number of GeoPoint, i want to display them all on the google maps. I don't know how to do it.
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Oct 21, 2010
Someone have a smart tip for get estimated time travel between two GeoPoint from Google Service?
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Nov 19, 2012
i need to apply translate animation from one geo point to another geopoint with some duration.when i doing this, the map is animating but getting white space in some part of the screen where the animation occurs.I think this is because of clipping of the map before animation occurs. During animation is running the entire mobile screen is covered with map is required.
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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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May 31, 2010
Just picked up my incredible, and I have two questions....
1. how do i change the email notification to a specific sound? As of rite now, when i receive an email nothing happens (no sound or vibrate).
2. How do I select a specific ring for mms. I know how to select sms, but I cant figure out how to change the mms.
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Mar 12, 2014
I have had androids for over two years now and am getting more and more concerned every time I download an app and seeing that it wants to READ my SMS message and Contacts.
Is there a way I can disable reading of SMS messages or any one of the other permissions by specific apps, or all apps?
Are we living in a world where any "joe schmo" can upload an app the to the app store and wait for those inadvertent downloads and collect all your personal information, and that's after all the time we spend protecting our identity and personal details?
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Jul 28, 2010
I am trying to pass location data from my application to the Google Navigation API (No, not the browser). I can pass data to the dialer, and call a phone number successfully, but now wish to use the turn-by-turn navigation as an additional function. I have searched tirelessly through Android documentation, Google Maps API Documentation, and the web without luck.Can anyone point me in the right direction or hint how I can pass the service my data?
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Jun 21, 2010
I want to have a elmenent with a 2 color border outline. I can do a single color outline using the element, but this only allows me to draw a single line. I tried using 2 elements within my but that didnt work either. Is there a way to either draw a shape within a shape or draw 2 lines around my shape (which has rounded corners btw).
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Apr 16, 2009
I followed the steps in document to display MapView. But blank grid is displayed instead of google map. My code...
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May 3, 2009
I've just downloaded the Cupcake SDK. I'm afraid I can't find MapView anymore...
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