Android :: How Do You Display Many Points On Map?
Jun 29, 2009
I understand the notion of overlays and all, but what if I want to display thousands of points on a map?The map becomes unresponsive after a few hundred OverlayItems are added.What's the best approach for doing this?
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Sep 3, 2010
Is there a way to display points of interest like gas stations, hospitals etc., using google maps?
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Sep 8, 2010
How to showActivity which will display route between two points.
This will start installed map application on android phone.
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Feb 3, 2010
I can able to show the route between two geo points in android using google map.Now i want to know how to guide the user like turn right ,take left like wise should display message. How can we achieve this?
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May 5, 2009
I am trying to write a code about catch lat. and long. points with the GPS, actually I am using the shell with the commands "geo fix" because the DDMS doesn't work in linux apparently, I am using this scripts:
getBestProvider(criteria, true); getLastKnownLocation(provider); requestLocationUpdates(provider, 2000, 10, locationListener);
The questions is: the program is working right now in the emulator, but what about if I move the program to the real cellphone? Is the same? I need think in something else?
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Apr 29, 2010
I want to make a apps that check what's the nearest place from where the user is. I can easily get the location of the user and I have a list of places with latitude and longitude. What would be the best way to know the nearest place of the list against the current position. I could not find anything in the google APIs. I am worried I need to resort to my calculate and have to do math to calculate it.
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Aug 1, 2009
I am just a beginner in the Android and was experimenting with HTTP.I have published the result of my experimentation through the following link http://kausikdas.webs.com/apps/blog/show/1489440-http-in-android. I am yet to get a device but working with the Simulator.I need feedbacks on the possible network problems I should handle. e.g.: 1. Do I need to discover the access points and dial one before connecting? 2. How can I know which services (Data/Data & Voice/Voice/No/Emergency etc.) current network is supporting? 3. Anything more to take care of?
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Jan 6, 2010
I'm trying to add a label to each of the points on a map that I've created. Setting the "title" and "snippet" values of the OverlayItem don't seem to automatically cause these labels to appear however. I would've thought this would be a pretty simple and common requirement. Am I missing something? Can someone tell me if there's a function that does this?
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Dec 6, 2009
I'm trying to develop an application which display the locations of contacts on a map (a Msn-like but for geo-localisation). I search to display a route between my own location and a contact location I want to join but I find yet no solution to do this. In the Android API and Maps add-on API I just find classes to display and listen Location, Distance, GeoPoint, etc., but no possibility to display a route between two points. Is it possible or not provided by the API?
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May 23, 2010
Has anyone checked to see if 3 or more points will show up on an Incredible? I'm trying to see if there's hardware/driver/android support for more touch points. Why more touch points? I dunno. It could be cool for something. I read that the physical screen supports 10 but my first tests printing MotionEvent.getPointerCount() only give me 2.
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Oct 7, 2009
Do anybody know how to draw path between two points on Map?
I need to draw a line, from one point to other...
I found one link (http://csie-tw.blogspot.com/2009/06/android-driving- direction-route-path.html) about this, but itīs not works well.
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Jul 16, 2010
I have some code that uses a network connection. I create a connection by calling openConnection() on a URL object. Is there any documentation that explains how this process works? Which access point is being used? When that access point becomes invalid, will it automatically switch to another accespoint? etc. I would like to use only WiFi access points and otherwise fail even tho 3G or GPRS could be available, is that possible?
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Feb 9, 2009
I am developing an application on the android platform. The app performs continues WiFi scan and sends information about the list of visible access points to server. However, I need to remove all the Ad Hoc points. The android.net.wifi.ScanResult api does not seem to have any information on "mode" of the network. Is there anyway I can distinguish a given point is Ad Hoc or Master?
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Sep 28, 2010
I would like to draw a curve(an arc) connecting three points in my screen PointA = (480,46) PointB = (160,137) PointC = (0,228) How to draw the curve using Android APIs ?
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Sep 1, 2010
I am looking for a mapping application that will let me browse maps offline, as well as plot points onto the map. Does anyone have any ideas which app might let me do that? According to the MapDroyd app, it won't let me plot points
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Dec 26, 2009
I'm making a game for android where I need to draw a lot of points that change position every frame. I use the ndk to get faster processing performance of the math/physics section of the game, so I need to use OpenGL to get the fastest performance. Right now, I make a texture every frame out of an array that holds the colors of every pixel. I am only able to get ~10 frames per second with this method. Is there anyway I could speed this up? ...
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Aug 3, 2010
I have two devices - HTC Tattoo and Sony Ericsson Xperia X10. One has 145 DPI, the other 245 DPI.
When I specify font size for a TextView in points, like this:
CODE:...................
I get different physical size of text on these two devices. On 245 DPI, the text is barely readable.
Now, "pt" size is supposed to be physical. I.e., in my test, both text blocks should have letters of the same physical height. Which is not the case.
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Aug 30, 2010
On onLocationChanged event I want to save my GPS route (Latitude , Longitude). Later I want to load this data and draw the route. Who is the best way to do this, by using some array type (and save or load by using database) or XML files or something else.
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Sep 21, 2012
I'm working on creating a custom CWM Flashable ROM (zopo zp900).
I'm making a updater script, but I'm having trouble finding all the partitions for my phone, especially the /boot partition.
See the quote down there, that's what I'm trying to achieve except for my device.
Quote:
dev: size erasesize name
mmcblk0p17: 00040000 00000200 "misc"
mmcblk0p21: 0087f400 00000200 "recovery"
mmcblk0p22: 00400000 00000200 "boot"
mmcblk0p25: 22dffe00 00000200 "system"
mmcblk0p29: 09800000 00000200 "lib"
mmcblk0p27: 090efc00 00000200 "cache"
mmcblk0p26: 496ffe00 00000200 "userdata"
mmcblk0p30: 014bfe00 00000200 "devlog"
mmcblk0p31: 00040000 00000200 "pdata"
mmcblk0p28: 00010000 00000200 "extra"
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Aug 9, 2010
I am building an application reading the signal strength of each available WiFi access point. I've written code like:
wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
// Get WiFi status
WifiInfo info = wifi.getConnectionInfo();
textStatus.append(" WiFi Status: " + info.toString());
// List available networks
List<WifiConfiguration> configs = wifi.getConfiguredNetworks();
However, I have two problems:
In debugging, configs only contains one connection. However, I can see that there are several APs available in the system's wifi setting. i.e. configs is an incomplete list. I don't know how to get the signal strength in Wifi Configuration. I am using HTC Hero and Android 1.5.
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Nov 16, 2010
I have a Samsung Galaxy S, running Froyo. I have an issue with WiFi handover, so I am posting here (in addition to the SGS section) in case this is an Android issue rather than an SGS-specific issue. I have two WiFi Access Points (APs) at home, both using the same SSID, but on different channels.
I expected the SGS to automatically move (handover) from one AP to another based on signal strengths that vary depending on where I am. However, this does not happen. It stays on the AP that it is connected to, even when moving to very poor signal levels. I need to manually trigger this (e.g by disconnecting from the AP). Any configuration or Android app. By the way, I also tried configuring the APs with different SSIDs, but this didn't work either.
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Jul 3, 2009
I need advice/pointers on how to display on a map multiple points that change somewhat infrequently based on the device's location. Currently, my application already displays in real-time the device's changing location on a map. I can also easily display the location of one of the other points of interest. However, I have not figured out a way to have both displayed on a map at the same time.
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Aug 1, 2010
How can I draw a nice flight route between 2 points on a google map's
MapView?
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Sep 17, 2010
If I use getScanResult() I will be able to get the information about different networks but for example if I am in a school where all access points are under network (SSID) "The school". Will getScanResult() filter out other access points than the one it's closest to and only return 1 BSSID for that network?
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Nov 24, 2010
I have just started with android ...
I have to develop an android application which should sync with data on webserver..
User adds some data using website, then data should be pulled and synced with data on android device...
I am not sure how to implement this...
Also I have to show map path only between two points (src,dest).. I have googled and it lloks like there is no built-in... only way is to use overlays and draw method.. is my understanding correct?
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Jul 15, 2009
I want my Toast to be displayed at specific points on the screen. How do i do that?
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Nov 20, 2010
I think google maps/nav is great, the only problem i have with it is choosing my route or putting via points in, is there anyway of doing this? on laptop i can create my own route my dragging, and then via chrome to phone i can send it to my phone, but i want to know if there is a better way of doing it or a way that i can do it and just use my phone. any suggestions? if there was a way of adding via points would be good?
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Apr 20, 2010
I'm currently developing a simple 2D game for Android. I have a stationary object that's situated in the center of the screen and I'm trying to get that object to rotate and point to the area on the screen that the user touches. I have the constant coordinates that represent the center of the screen and I can get the coordinates of the point that the user taps on. I'm using the formula outlined in this forum: How to get angle between two points?
-It says as follows "If you want the the angle between the line defined by these two points and the horizontal axis:
double angle = atan2(y2 - y1, x2 - x1) * 180 / PI;".
-I implemented this, but I think the fact the I'm working in screen coordinates is causing a miscalculation, since the Y-coordinate is reversed. I'm not sure if this is the right way to go about it, any other thoughts or suggestions are appreciated.
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Oct 2, 2010
What are different points to note down while testing android applications? What are different techniques or test cases used for android?
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Sep 28, 2010
I would like to draw a curve connecting three points in my screen
PointA = (480,46)
PointB = (160,137)
PointC = (0,228)
How to draw the curve using Android APIs?
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