Android :: Need Any Tutorials On Populating MapOverlay
Aug 19, 2010Does anyone know of any tutorials on populating a Mapview using an overlay at a specific point? e.g adding a marker at a specific lat / lng on your mapview?

Does anyone know of any tutorials on populating a Mapview using an overlay at a specific point? e.g adding a marker at a specific lat / lng on your mapview?
since map overlay is not activity, how do i get the sensor data so that i can draw on the map overlay? like the direction arrow.
View 7 Replies View RelatedI'm trying to draw some points (around 200) in a MapOverlay and noticed that the application gets slow and the phone becomes unresponsive. After adding the Log.i message I found the problem, the loop is run endlessly (note that the phone is quiet and there's nothing happening in the background): Is this a "normal" behaviour, a bug in the OS or am I doing something wrong?Here's my code...
View 7 Replies View RelatedI've built an application that loads XML from a server, then creates a list of items and with that I create and adapter that I set with setListAdapter(my adapter);
The problem I'm having now is that creating the list and adapter takes time, so I was thinking on creating just like 20 entries and populate the list, then create the rest on runs background or maybe when the person gets to the bottom (like gmail application).
I'm attempting to make a dynamic drop down that will be filled by a SQLite table. I have a Cursor object which I can pull the data I need from. I've been able to accomplish loading the values into the drop down with the code below:
CODE:..............
My problem is that I need the a selection from the drop down to also contain the RowID of the item selected. I need to be able to select one item and have access to the value of that item in the back end. For example, think of a drop down in HTML. Each drop down selection has it's own hidden value that is pulled. I need this value to be hidden for me to allow me to know which ID they choose.
I have created a custom list item layout just like in this article http://developer.android.com/resources/articles/layout-tricks-efficie....
Each list item has icon, title and summary.
I would like to declare an xml resource that would provide data for that list. Just like you use <string-array> to populate the list using ArrayAdapter<String>.
The simple ArrayAdapter<String> can be populated from:
CODE:..........
I need each <item> to have icon, title and summary. Somewhat similar to:
CODE:..........
I would use <menu> but menu doesn't have summary if I'm not mistaken.
I am using a progress bar in android, so that till my data is loaded, user is getting a proper feedback of what is going on.
The code for the bar is below:
CODE:............
The setSelected() method is inserting data into an array list, and then creating an array adapter and then using a list view to show those items. so when I put the setSelected() method in progress bar, it shows the loading circle, but once loading is done. Nothing is displayed in listview. But if I take out progress bar code (thread and run method), and simply call setSelected() method, the listview successfully declares the data. so far it concludes that the progress bar code is doing some thing...so wanted to know am I missing something to add in or take out from the code. I need to the show progress bar as I am reading data from online source and it takes time , which may make user uncomfortable.
I'm populating a list from the DB and I have a image field in the DB which contains a URL to a image file.
ListAdapter adapter=new SimpleCursorAdapter(this, R.layout.row, constantsCursor,
new String[] {"title", "subtitle", "image"}, new int[] {R.id.value, R.id.title, R.id.icon});
However, the other fields are populated, but the image remains empty. Why?
I am using a simple expandable list that is populated by two arrays ( group array for the groups and a multi dimensional children array for the child). The arrays are built dynamically in the program and some group items have more children than others. So I end up defining the highest number as the array size for the multidimensional child array. After populating the child array, some positions are left null, as there are no values for those group items (explained above). When I associate this with the expandable list adapter, the getChildView method throws a nullpointer exception when it comes across a position in child array that does noto have value. I have two questions:
1. Can I make the base adapter skip the shildview method if the value in that child is null? The current implementation of getchildView method has to return a view and even if I suppress the nullpointer exception, it adds a blank element in the child position in the list.
2. Is there a better way of associated multidimensional arrays that are populated at run time? The current set of examples only use hardcoded string array values. Even the cursor adapters examples use very basic setup.
I'm populating a listview from a database query and I can't seem to figure out what is going wrong.
As you will see in the image, the query is returning some sort of id. I've done a ton of googling, but the problem is that I don't know what to search!
Just got my Droid 2 a few days ago, and am trying to setup some folders. I created a folder on the home screen and named it "Music". I know I can use astro to move files in there, but is there a way to do this natively. Using Astro, I have to copy each file one at a time to the home screen as a shortcut, and then move them. I have a lot of music and this can take a while. I can't seem to find the folde on the home screen to browse to.
View 3 Replies View RelatedI'm writing a small program in which I'm using my phone to detect Bluetooth devices. I'm currently stuck on populating an array list with the names of all the device names that have Bluetooth.
Code:
Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
if (pairedDevices.size() > 0) {
for (BluetoothDevice device : pairedDevices)
mArrayAdapter.add(device.getName());
[Code] ...........
For some reason, the array list isn't populating. Also, how can I display the array list in a ListView
As I am one who cannot find any decent Android-based OpenGL ES references, I have decided to start one. You can check it out at http://www.vincepascuzzi.com. As I am not a seasoned GL programmer, any and all comments and/or questions are greatly appreciated!
My mission is to first create an OpenGL version of an application on Mac OS X, and then port to Android. Once the port is done, I go through each program, step-by-step, and contrast and compare how the port was done. I also explicitly point out any and all differences between the two, subtle or obvious.
Do you know a good tutorial about OpenGL ES 2.0? I'm going to use it with Android and C++.
View 3 Replies View Relatedi can implement the QSB on my app using onSearchRequested() method.i have 4 column in my table. when i was type in the QSB. it will give some suggestions on the Suggestion window. how to do that? searchable dictionary example shows the dictionary provider class to retrive the suggestions. but on that no data inserted. then how they getting the suggestions. can you explain me what are the steps we have to follow or tutorials, sample codes are most thankful.
View 1 Replies View RelatedI need to work on my Android development skills. Which blog has the freshest and most walkthroughs, code samples, and tutorials?
View 7 Replies View RelatedI am a newbie in android world so i am ready to spend some time watching android tutorial videos and reading some books. I am ready to spend some amount on android paid tutorials also if they are worth a look. Please suggest me some study material along with some android paid tutorials, i want the best tutorial since i have many apps in mind to develop :) I have had a look at all the free tutorials and i know how to do some simple stuff like calling an intent, making the layout file, media controller. But i dont have knowledge about the major issues like database connectivity, flinge, adapters, geolocation and stuff. Hence the bottom line.
View 3 Replies View RelatedI need a very simple menu which probably contains only one or two items: settings/options, where pressing one of them should show some customer defined parameters (is it called dialog), e.g., number of results shown. Is there any good tutorial on creating such kind of menus? I've looked at the "notepad" example in android, it doesn't really help.
View 1 Replies View RelatedI was trying http-cleint tutorials from svn.apache.org. While running the application I am getting the following error in console.
CODE:............
I have added android.permission.INTERNET in AndroidManifest.xml.
CODE:...........
The java code in HalloAndroid.java is as follows
CODE:....................
What tutorials and libraries are available which can help beginners to develop 2D and 3D games on Android using OpenGL-ES? I'm looking for tutorials which can help me learn OpenGL-ES, and I'm looking for OpenGL-ES libraries which can make life easier for beginners in OpenGL-ES.
Since Android is still small, I guess it may be help-full to read iPhone OpenGL-ES tutorials as well, as I suppose the OpenGL-ES functionality is much the same.
I have found the following useful information which I would have liked to share:
Android tutorials: DroidNova: Basic tutorial covering polygons, no textures anddev forum with some tutorials
Other Android OpenGL-ES information: Google IO lecture regarding games, not much OpenGLES The The Khronos Reference Manual is also relevant to have, but its not exactly the best place to start.
iPhone OpenGL-ES tutorials (where the OpenGl-ES information is probably useful): http://web.me.com/smaurice/AppleCoder/iPhone_OpenGL/Archive.html
[url]
As for libraries which a beginner might use to get a simpler hands-on experience with OpenGL-ES, I have only found Rokon, which is recently started, thus has many holes and bugs. And it's gnuGPL licensed (at the moment) which means it cannot be used, if we wish to sell our games.
I follow the instructions exactly on this page (and some of the other tutorials) but they always seem to be missing some key information as they dont work out of the box
I added a bunch of packages that seemed like were missing, but now I'm stuck.
http://developer.android.com/resources/tutorials/views/hello-gridview.html
Description Resource Path Location Type Conversion to Dalvik format failed with error 1 HelloGrid Unknown Android Packaging Problem
And a whole bunch of these for each of the drawable.sample_* references
Description Resource Path Location Type R.drawable.sample_0 cannot be resolved ImageAdapter.java /HelloGrid/src/com/example/ImageAdapter line 51 Java Problem
CODE:....
As you can see I have all the images loaded in the /drawable directory
Can any body give me some tutorials about operations on the android emulator ?
View 2 Replies View RelatedDoes anyone have any recommendations for a class (online) or tutorial that teaches android programing for dummies? It's frustrating knowing exactly what you want to do and no idea how to do it. Something that uses basic language and explains each line in detail to help a person remember how to do it later. Any suggestions would be great.
View 1 Replies View RelatedDoes anyone know some places that have some good books or video tutorials or just generally good knowledge of creating android apps? If someone can hook me up with some info on at least what I need to know to create android apps that would be very appreciated.
View 2 Replies View RelatedThere is compile error in HelloAndroidTest program in the Tutorials Hello Testing program, because I got this compile error. com.example.helloandroid.R.id.textview can not be resolved.
CODE:................
My com.example.helloandroid.R doesnt have R.id.textview, and endroid.R.id class does not have endroid.R.id.textview field. Where do I support to get this field, com.example.helloandroid.R.id.textview?
If (in Android) you wanted to write an alarm app where the user entered in the time for the alarm by swiping the hours & minutes up and down, what's the easiest way of achieving this? Is it the Swipe or Fling command?
Are there any good tutorials out there for this?
Specifically some that may cater to an experienced developer (C#) but not necessarily familiar with Java/Eclipse?I have seen a couple vids on YouTube but they are either short (not much you can learn in 3mins or patronizing)
View 2 Replies View RelatedI'm looking for some good tutorials for introducing someone to programming android applications. I'm not new to programming, but i wouldn't say that i'm an expert by any means.
View 1 Replies View RelatedI am looking to start a project that will involve the use of soap quite extensively. However... I know nothing about it! I was wondering if the community here could point me towards a few of the choicer tutorials on the net instead of having to wade through countless sub-par search results. And when I say I know nothing about it, I mean I know that its like an online api to some extent, but really that is it.
This would be used in conjunction with an android app, so I suppose I should also ask if android sdk even supports soap/ is this even a valid question? I really am clueless here.
to start with I've gone through the entire notepad tutorial, I'm a professional game programmer who has some extra time. (though most of my time has been in C++, I did take a year or two of Java classes in college, and remember some of it). I'm not sure the site is a good site to ask questions like this.. If someone has a Forum that might be a good place to ask these newbie questions, please feel free to point me in the direction. I've examined a few of the samples, and think I've a grasp of what I want to do. I've a three to four project plan for some Android releases to sharpen my skills, but since this is my first project and I have never really developed for a mobile phone or the android before, I'd like to make sure I have a solid plan.The first project is an example of the license plate game, however I want to do a few things to change it. Heck maybe when I'm done it'll become a bingo style game, with bluetooth connectivity, you never know. The base idea is I want to offer a list of states, with checkboxes next to them. so to do this, I'll be starting with a Linear List layout similar to the note pad example, and then have a row that is only a Checkbox. I can use text and call strike through if it's been checked off. Perhaps offer an option to not show them if they are checked.
But I want the list to be generated from a set of lists. Maybe all of America's states, maybe reasonable American states (no Hawaii, no Alaska) maybe a North American list, (add in Mexico and some Canadian provinces), a European list, who knows. I'd probably have to have a pop up window that lists all of the lists I suppose using a radiogroup of some sort. So then as far as the data, after weighing options I think best solution is to make a database with two fields, "checked" and "name".I figure I can use the menu for most of the user interaction (aside from clicking on stuff we want to check off) with maybe a few context menu items, I understand how to make all of those already so I should be good. The question I have is what is the best way to populate the lists? Should I create raw data, and have different files for all the lists? Or is there some other way to do this? I've seen this done on the searchable dictionary, but I'd like to hear what people who have actually generated the data like this before. In addition is there an easy way to look at the sql database these applications create, or do you have to run searches on them and output the data? Finally any other suggestion or advice? I definitely want to try to get something like this on the market so I can see the full life cycle and see if anyone actually likes it. (luckily there's not a plethora of them already) but I also want a few people to look over my code if they're willing when I'm done to make sure I've done this right or at least not missing any basic mistakes.