Android :: Reverse Geocoding In App

Oct 17, 2010

I am trying to Reverse GeoCode current Lat/Long data to just Admin Area and Sub Admin Area using the Geocoder class.

I am using the NETWORK_PROVIDER as the Location provider. Here is the code that I use and it works. The problem is sometimes it does not give me any location sometimes it does.

Android Manifest permissions I am using.

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

Here is the rest of the code that does give me correct location from time to time but nothing at other times.

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

Are there restrictions with the network providers how frequently you can request location data?

How can I make sure that everytime its run this can give me valid location data.

Thanks in advance for any insight into this.

PS: I have run this code on my real device running Froyo 2.2 (Verizon Wireless). Target API Level 8.

This is what I got from my debugging.

Latitude Longitude is always fetched but the getFromLocation often returns null for the latitude longitude data passed to it. So what should be the workaround? May be pass the Lat/Long info to Google Maps API for reverse geocoding. Will be glad to receive any input.

Android :: Reverse Geocoding in App


Android :: Emulator 2.1 & 2.2 Reverse Geocoding Not Available

May 30, 2010

I have been unable to get reverse geocoding wokring under either 2.1 or 2.2 on the emulators. Tested on both mac/eclipse & ubuntu/eclipse.

I am sending manual decimal coordinates via DDMS and have ACCESS_FINE_LOCATION & INTERNET permissions in my manifest file.

On an actual phone (HTC Desire) it functions properly.

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

The following code throws the exception below

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

I have been looking for docs on this and can find very little information on the above to confirm whether it should or should not work.

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Nov 24, 2010

I am getting null pointer exception when I am trying to get lat/long from address using reverse geocoding in Android....

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Sep 24, 2010

I recently upgraded my SDK from 7 to 8. One of my applications uses Google GeoCoding, specifically the Geocoder object. After the upgrade, when I call the getFromLocation method, it doesn't return any addresses and I see a message in the logcat to the effect that GLS failed with status 20. My Google Maps API key is working fine because I'm seeing the map tiles, but GeoCoding is broken. It works fine if I run a previous (SDK 7) build of my app.

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Android :: Caching Geocoding Data

Nov 5, 2010

My app makes several calls to getFromLocationName from the android.location.Geocoder; class, this is currently handled in my activity which also displays some data depedant on the results of that call.

This can be quite slow, for example before the activity can load it first has to complete the various calls, and that is reliant on a network connection.

Once I have the results, I don't really need to refresh that (I mean how often do locations and geo coordinates change?)

My question : How can I best avoid having to query for this data each time my app runs. Should I do something with a service that loads them all on startup? (could be quite slow if it has to query 50+ times). OR should I make the call, store results in SQL, then only query next time if I don't currently hold the results?

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Android :: Geocoding - Accuracy Required In GPS Coordinates

Sep 21, 2010

My question in a nutshell is: Is there a correlation between the number of decimals used in GPS co-ordinates and the accuracy of the location?

Right now I happen to be working with the Android SDK but I'm sure this question can apply to many other geolocation SDKs. Basically, Android returns GPS coordinates with up to 14 digits. That seems like overkill in most situations. Lets say I needed accuracy down to about an area of 10 feet by 10 feet. How many decimals do I really need to worry about? The use-case that I'm looking for is I want to know if a person is north or south of a particular latitude - how many digits would I need to store in the database and how many digits would I need to compare?

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Android :: Strategies For Large Volume Of Location Geocoding

Oct 27, 2009

I have an application that uses the Google Maps API to geocode distances between lat/long pairs as a way of displaying people near to you on your phone (currently Android, working on iPhone). The issue is that even with a test group of 40 users, we are taking upwards of 10 seconds to do our calculations and send the results back to the users. While 10 seconds sounds like a long time, it's not really an issue as far as the client app goes because it's not a real-time update of people's locations (the updates occur every few minutes). Obviously this is a problem though since we'd obviously love to ramp up to tens or even hundreds of thousands of users. I'm curious if anyone else has any experience in this arena in regards to using the Google Maps API for calculating distances between points for large volumes of data?

As an aside, we're using Rails on the server, which is where all of the location calculations are occurring. The phone(s) are merely displaying the maps and updating the server with lat/long coordinates.

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Nov 24, 2010

After I upgraded to Android SDK 8 I started seeing geocoding failures in the emulator. However, everything was fine on a device. Now my app fails to gecode on 1.5 and 1.6 devices as well as in the emulator. I can't test on a 2.2 device. Perhaps it works OK there.

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Nov 26, 2009

I have been uploading my photos to Flickr using the built in Flickr integration. However, I notice that the geocoding does not get set in my Flickr account. When I browse the photos on my phone's card, the goecoding is in tact. Is this a limitation of Flickr or my Hero?

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Android :: Reverse Tether

Mar 24, 2010

I have a G1 and I now have an app named MapDroid BUT so slow to download the maps. If I could hook up my G1 to a computer at the internet cafe that has a ASDL connection it would go much faster AND I would be able to do something else beside watch the yellow bar slooooooowly move. I am not in the USA. One guy said the best way is buy a Bluetooth drive that looks like a flash drive. Plug it in the PC and my G1 should get internet. Not sure. I think files would work but not sure about internet. If the cable won't work then why should bluetooth?

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Android :: Reverse Remote Desktop

Jul 30, 2010

I'm searching an app which can allow a user to access/remote control his phone using his computer.I'm conviced someone already made it, but i just couldn't find it.

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Android :: Reverse Geocoder - GetFromLocation - Lat - Lnt

Nov 2, 2010

I find that geocoder apis particularly getFromLocation using Lat and Lnt is not very reliable. I am noticing this behavior more after I upgraded to android 2.2 on my Droid. I get an invalid argument exception for Latitude. The funny thing it is not consistent in this behavior.

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Aug 18, 2010

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Oct 12, 2010

I just got my first Android and love it after having used Win Mobile for years. However, there's one app I just can't seem to find.

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Instead of accessing my PC desktop on my phone, I was able to FULLY access my phone desktop on my pc (i.e., I could completely operate my phone on my PC which allowed me to type and enter data faster and more accurately).

Does anyone know an app that'll do this (even a non-free app would be great).
I had grown so accustomed to using this application that I will now be lost if I can't find a suitable replacement.

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Android :: Reverse Tether Via Bluetooth PAN

Oct 12, 2010

We've been trying to reverse tether (using a SmartQ V5, android version 2.1) to another device that has an Internet connection we want to share. That is to say, the Android device is the client and needs to get access to the Internet through connecting to a Bluetooth PAN network.

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Has anyone had any luck in compiling an android OS or setting up PAN to do reverse-tethering with another device (say PC)?

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Dec 24, 2009

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Sep 16, 2010

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Jan 26, 2012

I have a [rooted] novo 7 Basic (running android 3.2) that I need to reverse tether to an ubuntu machine - through USB

Because this tablet (and other tablets) are not 'phones' - they don't have a native tethering option (which is required for most of the reverse tethering examples that are out there)

I can work with the device through adb - tried setting up a tunnel but I can't get any usb interface to show up with ifconfig

Maybe there is a way to just do it through abd with some ubuntu network configuration?

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Jul 8, 2010

How would i go about reverse engineer what i have on my phone into a project in eclipse. To clarify, i want to create project where i have all the source code that was used to set up my stock phone.

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Aug 19, 2010

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Mar 30, 2010

I have a Nexus One connected to my computer via USB cable. Is it possible to have Nexus One route all TCP/IP traffic via my computer's internet connection? This is like reverse tethering I guess.

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Android :: Reverse Landscape View For Video Playback

Sep 23, 2010

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Feb 8, 2013

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Android :: Cost Of Calling The Reverse Geocoder Multiple Times

Nov 4, 2009

I'm using the geocoder in the android map api, this work relatively good, my problem though is that i want to be able to get a number of addresses near a geopoint ! I thought about calculating different geopoint near the a center geopoint, but what about the cost of calling the reverse geocoder multiple times etc.

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Sep 25, 2010

Is it possible to create android applications that can communicate with apps running on the computer through USB? Like some sort of reverse "adb forward".

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Jul 24, 2010

I don't see anything about this change in the API differences report at http://developer.android.com/sdk/api_diff/8/changes.html. However when my Nexus One started running Android 2.2, the list of files created by the following code are now in reverse alphabetical order rather than alphabetical order (as they were with Android 2.1 and earlier, AFAIK):

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The line "Arrays.sort(fn);" revives the alphabetical order of the list, but sorts are computationally expensive and AFAIK the explicit call to Arrays.sort() was unnecessary prior to Android 2.2.

In addition to seeing this order change on the Nexus One, it can be confirmed on the emulator running level 7 and level 8 AVDs.

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Jul 17, 2010

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HTC Desire :: Reverse Teethering

Jun 1, 2010

Is there an app or widget or a tweak to get reverse teethering working on HTC Desire ?

Like when I have my Desire connected with my PC via USB or Bluetooth and PC is connected on LAN and has a wireless card ,is there a way to access my PC internet on my phone ?

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Nov 7, 2010

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Apr 30, 2012

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If it needs to be in the ROM, where would this be changed?

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