I'm trying to use the structure laid out in LunarLander to create a simple game in which the user can drag some bitmaps around on the screen (the actual game is more complex, but that's not important).
View 4 Replies
Is there a reason why the Thread class in the SDK LunarLander and JetBoy examples are not each in a separate java file, rather than being inside the View file?
It would make things a bit clearer, IMHO. Am I missing something?
I noticed that the keypress handling ('onKeyUp' etc) in the SDK LunarLander example is in the View class, whereas in the JetBoy example it is in the Activity class. Are there any advantages/disadvantages to either solution? My own thoughts would be that it would be nicer to put all input handling (Key, Click & Touch) into the Activity, as that doesn't do much.
View 1 Replies View RelatedI am new to Android, and I need some advices for start up. I want to build an application, which will show up, when the user gets into some hot situation. How to get started? How do I make sure my app won't be shut down?
View 2 Replies View Relateddoes anybody knows where is Program Files directory on my htc tattoo. when I install any program where does it goes. i found under sys folder all system applications but not 3rd party applications.so i download apk files, this is instalation file. after i run it it install current application and create shortcut in program list. but where are files for current application
View 5 Replies View RelatedI'm trying to create a simple Workout Timer for Android. The user creates a WorkoutPlan containing info such as total duration, total rest time, etc, the app will display a timer that updates every second.
Pretty simple to begin with, but I'm trying to build the app as properly as possible, i.e. separation of concern, correct techniques, responsive UI, ensure the timer will be accurate, etc.
Here's a simplification of what I have so far:
WorkoutPlan, the user can load/save different workout plans to the timer
Code:
public class WorkoutPlan {
public long duration;
}
TimerThread, this class implements `Runnable`, it takes in a `WorkoutPlan` in the constructor, start/stop, shows elapsed time.
Code:
public class TimerThread implements Runnable {
public boolean running = false;
[Code]....
TimerView, the custom view that displays the elapsed time
Code:
public class TimerView extends View {
private final Paint mBg;
private final Paint mText;
private WorkoutPlan plan;
private TimerThread timer;
private Thread thread;
private Handler handler = new TimerHandler();
[Code]...
Finally, WorkoutTimer, the activity that starts it off
Code:
public class WorkoutTimer extends Activity {
private TimerView mTimer;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
[Code]....
A couple of questions:
Where's the best place to create the `WorkoutPlan` object? Currently it's done in `TimerView`. Should it be done in the `WorkoutTimer` activity instead? If yes, how do I pass the `WorkoutPlan` object to `TimerView`?
The app works fine the first time, but crashes when I go to the home screen then back to the app the second time. What's causing it to crash? Is it the theading?
Currently I'm using a `Handler` in a new `Thread`. Is this ok or would a `TimerTask` be better? Where's the best place to start the thread? Am I correct to put all the threading code in `TimerView`?
Am I correct to add synchronized to all the methods in `TimerThread`?
Is it possible to play a DVD's Structure or ISO (containing the "VIDEO_TS" folder) directly on Android with menus? If yes, how?
ParanoidAndroid 0.4a on Galaxy Note GT-N7000
I fear the answer is no, but before I change the structure of all of my log messages: Is there any way to do this: $ adb logcat *:S com.myappname.*:V
Or in words: I want to silence every tag that goes to logcat except the ones that begin with com.myappname. Currently my classes print into the log with this.getClass().getName() as the tag - typing each tag out individually in the filter isn't an option, so is there anyway to use the wildcard? The above command doesn't work, because it just silences every class, including the ones I've explicitly told to be verbal. I've also tried:
$ adb logcat -s com.myappname.*:V $ adb logcat com.myappname.*:V *:S
to no avail. I have a feeling I might have to log in a more constant fashion. Or I might just use log4J.
My SD card on my droid x went bad so the verizon store gave me a new one but it seems they formatted it for a blackberry hence I see blackberry folders in there Can someone tell me the file/folder structure for Android 2.2? Once I format and clean it up, what are the directories I should be creating? If there's a link that describes it, that would even be better..
View 4 Replies View RelatedCan some tell me how i can rebuild this: http://developer.android.com/images/radio_buttons.png this screenshot is from android Google maps. i will rebuild this radiobutton menu and this is my xml-code...
View 3 Replies View RelatedI'm trying to structure a URI that accesses my data by id. Currently my URIs are query based like so: How could I structure a similar URI so that I could query for notes in multiple lists?
View 2 Replies View RelatedI am new to developing for android. I have a question regarding some best practices. My app is like a dashboard from which multiple different "sub-activities" can be started and done. I am wondering what is the best way to structure the app. One way is to have different layouts and load and unload them appropriately. The other is to start new activities using intents. At least this is what I have gathered from what I have read.
View 3 Replies View RelatedI want to display a tree like data structure, for the Swing JTree is ideal. Is there any widget that provides that? Or any implementation of Swing for Android?
View 2 Replies View RelatedWhere does the music folder belong in internal memory? A while back I moved all music to my SD card, including the folder. Now I'd like to move some music back to internal memory but I forget where the folder should go. Thanks.
View 1 Replies View RelatedI recently started programming in Android, and as a beginning project I am trying to build a logo quiz app. The idea: You see a splash screen after opening the app (play game - about). Play game takes you to a new activity called LevelSelector.java where you can choose the level you want to play. Clicking on a level takes you to another new Activity Level.java.I created a SQLite db with 20 questions in it which I install with a DBHelper.java class, every question also has a level column.
However, I get lost in my global structure. Since I work with different levels I don't want to make a new class for every level. I guess I lost the overview due to my lack of programming in android, but I figured the best way to learn it is (after I watched tutorials) to build an app myself..
Can someone that has created playlists take a look at the folder structure on their sd card and post it. I want to create one manually.
View 1 Replies View RelatedDoes anyone know what is the proper structure or hierarchy to set up folders on either the phone's memory or the SD card. Should I have a "music" folder, or "mp3" one, should they be in "media" or just sitting on the root directory?
View 1 Replies View RelatedAdded music to SD card (I accidentally formatted so initial file structure was gone). I created a Music folder and dumped some MP3s in there. Now I can play them through music player, view them in Astro File Manager, but they are not available to select for phone ringtone.
View 4 Replies View RelatedAre there any good solutions to get a good structure for applications, widgets, etc. under the menu?It's total chaos, would want to collect all applications from Google in a directory eg.
View 2 Replies View RelatedI want to build a data structure in my application to store many entries indexed by keys. Each entry has several parameters to retrieve and update.
View 2 Replies View RelatedIn my application, I am going to create a few listviews that are dependent on the listview before it. For example,Then, depending on user choice, will go next screen, let's say, it contains a submenu of each type of school,that may be different or may be the same to other states.What I want to know, is how to populate these different lists dynamically as the user goes on? I don't know what the best of doing this is, and I seem to be looking in the all the wrong places because I keep getting stuck. Once all the data is added into whatever structure is used, it will be static. I basically just need help as to how to code information into some sort of hashtable or anything of the sort that can be easily referenced, and later when the Application is updated, be able to add more schools/states/submenus etc.
View 1 Replies View RelatedMy Android main application will consist in a main program, with a few pre-installed modules.Then I want to offer different modules later, best would be as separate files. Modules like: location, weather, agenda.How would you accomplish this?I want to keep in the database the modules that are installed/present. So I must put sometimes the modules into database, maybe by detecting if there are present at launch time. The main app will work based on these modules.How can I build these modules as separate files? They won't be an entry point in my application. So they must not be an application in the navigation menu.
View 1 Replies View Relatedso I'm curious if someone know what is exact folder structure, which should be used. My question is about phone memory and SD card as well.So far I suppose, these work:If you want phone to find new ringtones (and only, not have it listed in music player).
View 15 Replies View RelatedDoes anybody know what data structures are used to the store messages in an SMS client app, and whether there is an existing API for this.I was perhaps looking at implementing a link list for the purpose but if the work has already been done in an API then perhaps it would be unnecessary to commit time to the task that could be spent programming other parts.
View 2 Replies View RelatedI've run into an organizational problem with an application I am working on, on the Android platform. The application uses sensors as input and OpenGL as output.Assume very simple drawing code and somewhat complex control system code that will attempt to refresh at 60ish Hz. I am looking for performance, maintainability and easy of development implications, so any and all input is valuable. Also I am a complete novice when it comes to Android or mobile development so if you can show me the light with a third alternative that'd be great too.
View 1 Replies View RelatedFor my CS bachelors I am doing a Senior project using android and google maps.My vision was to do a (relatively) simple Dijkstra shortest path using google maps road data. I was going to add elevation change along with 2D distance. I am doing well playing with maps in android but I am completely stumped trying to access google maps data in any sort of searchable form.How would I go about accessing the data for say intersections of roads (lat/long) in a particular area?There has to be a way to pull that data in some sort of tree form. It seems like it may be possible with kml?Any pointers would be awesome.I want my paths to follow roads but If i cant this is going to turn into an orienteering application fairly fast.
View 2 Replies View RelatedHow the directories are disposed? Where do I copy my musics and pictures in my virtual device to test my apps? update: I entered the internet on the Android's virtual device, tried to save an image, and it says that "An SD card is required". I thought I've read in the android.developers.com that the device has a SD card by default. Anyway, I'll look for how to create it.
View 3 Replies View RelatedI have been looking at Android's javax.net.ssl package, but am still confused as to how it works with the underlying JNI glue in place.Would anyone be able to tell me how the provider is linked to the abstract classes, given that the user calls the abstract classes directly from their code. I thought that usually the user would call the subclass, but in this case it seems to be the opposite.
View 1 Replies View Relatedtoday i meet the problem.i need technic can control the android machine from server.then i want send data from server to android with no request from android.
View 2 Replies View RelatedI'm trying to open a dialog window, but every time I try to open it it throws this exception:
CODE:.................
I'm creating it by calling showDialog with the display's id. The onCreateDialog handler logs fine and I can step through it without an issue, but I've attached it since it seems like I'm missing something:
CODE:............
Is there something missing from this? Some questions have talked about having this problem when creating a dialog from onCreate, which happen because the activity isn't created yet, but this is coming from a call from a menu object, and the appContext variable seems like it is correctly populated in the debugger.