Android is an operating system for mobile devices developed and maintained by Google, Inc. This tag should contain specific programming questions about Android.

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Too many if sentences cause lag?

I am trying to make a vertical scroller game with collison tiles on both sides. I'm using Libgdx and android studio. The problem is that i have made every tile as an object with a rectangle for ...
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21 views

Card game turn-based server solution needed [on hold]

We are looking for a server for a game we want to build. The game is built for iOS and Android devices, and the clients need to be able to play against each other. The game architecture would be to ...
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2answers
321 views

One Android app, dynamic load several Unity games

I'm a newbie in this unity world, exciting about everything in it. Days ago I came up with this idea: One day someone finds this android app, naming "Blahblah Game Engine" or anything else. This ...
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Admob Hiding and Showing ads beginning android games screens

I am writing a game using the 2D screens framework from the book Beginning Android Games. I have used the tutorials here to place ads in my app and modified my GLGame class accordingly.I want to ads ...
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2answers
92 views

Sound isnt playing in Game Maker Studio when interacting with object

Im making a small game in Game Maker Studio. I have a piece of code that moves the player to the next room when he touches obj_star: this works. I have another line that tries to play sound_collect ...
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15 views

How to use two different GestureDetector for two different views? [on hold]

I am trying to develop an android game that requires gesture inputs from the user. I have two linear layouts inside a relativelayout. I am able to detect gestures with the GestureDetector class. I ...
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1answer
56 views

LibGDX: Is it necessary to set a stage as an input processor when creating a touchpad?

I mean, I've been searching it, they always use set a stage as an input processor after they had added the Touchpadto the Stage because it extends from Actor indireclty(it extends from Widget that ...
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3answers
1k views

How do I access a Unity class from an Android Activity?

I have made my own C# classes in Unity. How can I access them from the Android Activity that starts the UnityPlayer? Example: I have a C# class called testClass in Unity: class testClass { ...
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24 views

Do I restart the service?

I have a long running service in my game, that consists of two threads. //MY SERVICE: if(userEnabledProcessOne) //Shared preference value that I'm getting from the settings of my app based on a ...
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vote
1answer
751 views

Multiple enemy array in LibGDX

I am trying to make a multiple enemy array, where every 30 secods a new bullet comes from a random point. And if the bullet is clicked it should disapear and a pop like an explosion should appear. And ...
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1answer
48 views

Is Angry Birds Made Purely Using Bitmaps/Raster graphics? [on hold]

Being a beginner game developer I would like to start creating my own engine and graphics so I am concerned about how successful games accomplish the graphics portion. My question is, are all the ...
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1answer
236 views

Fixed background on a SurfaceView

I'm currently working on a top-down twin-stick shooter for Android. I've got my player moving around and shooting, but I'm looking to add a large Bitmap background which is larger than the device ...
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2answers
132 views

LIbgdx android app remove fullscreen and show titlebar

I am developing an app using libgdx and i dont want the app to go fullsceen and i also want to show the title bar but the app goes to full screen and hides title bar instead of all efforts. here is ...
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1answer
34 views

How can I communicate between libGDXand the Android Studio Java files?

The reason I'm asking is because I wanted to create a game and I know I could use Scene2D to create the UI but as far as menus go I wanted to use the tools in android studio to at least create a menu ...
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1answer
381 views

How to draw small sprite bigger?

I have created an image with the resolution of 25px(width)*34px(height) (I know it's unusual, however it doesn't bother me now). The problem is that when I try to display it by creating a bitmap, it ...
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0answers
23 views

Android: How to get Android Processor Programatically? [on hold]

Hello Friends! i need to get android Processor but i cant do this if any one know please help me. Am using Android Studio..
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0answers
12 views

How do i integrate a android camera into a google cardboard viewing mode. For AR purposes

simply i want to have a stereoscopic view (like google cardboard) but through my camera and i want to add AR stuff in it. Is there a tutorial on this or some tips. ive tried too search for it and alas ...
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1answer
198 views

UNET start game with friend by finding their name, Android

There is a game at the google play store called Fun Run 2- Multiplayer Race. I loved its feature to find friends by writing their names, and then to play with them. Is it possible to achieve that with ...
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1answer
53 views

How could I access game data from a dev machine at runtime from a mobile platform?

When working on a game on a mobile platform, having read/write access to game data (assets, configuration files) stored on the dev machine at runtime would enable building of tools to quickly iterate, ...
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1answer
50 views

ARMv7 vs FAT in Unity Android Build Settings (release multiple valid APKs)

If I select ARMv7 instead of FAT (ARMv7+x86) in the Android Build Settings of Unity5-Free, the APK binary drops to half size. FAT => ~20MB ARM => ~10MB (Tested with an empty scene, no assets, ...
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3answers
813 views

Counting multiple touches using Cocos2dx 3.2

I'm trying to count the number of active touches in screen in order to perform an an action in case that there are two touches: auto jumpListener = EventListenerTouchAllAtOnce::create(); ...
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2answers
518 views

Libgdx box2d crashing

im making a game in libgdx which i having a bunch of circle bodies floating around in space and when the player's body crashes into another body, that body deletes and creates two smaller bodies ...
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1answer
66 views

Fixing the size?

I have been stuck on an issue for 6 hours now, and would really appreciate your advice. Currently, my app isn't compatible with all screen sizes. When testing on a small size, my textview overlaps ...
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0answers
31 views

HashMap or LinkedList

I'm working on a 2D game for Android using LibGDX in Java. In my game I got lots of enemies, bullets and other stuff. I hold a hash map, which every cell holds a reference to an array list of that ...
4
votes
1answer
269 views

LibGDX Box2D TileGame Efficiency

I am trying to implement Box2D into my top down tile game in LibGDX. Each world consists of a set of chunks, and each chunk is 16 tiles wide/long. The maximum/minimum chunks loaded at one time is 9 (a ...
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1answer
2k views

Unity Android Unable to convert classes into dex format AdMob

I'm a beginner Unity programmer (school-age), so I don't know that much about the system. On its own my app compiles fine, but when I implement the AdMob SDK (Google) 2.1, I have the following error ...
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1answer
63 views

How to use Java 8 with Lib GDX in IntelliJ?

I have set the jdk to Java 8 and I have modified all the build.gradle files in my project to have sourceCompatibility = 1.8 instead of 1.6. My problem is that while it does work on Desktop it doesn't ...
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1answer
205 views

How to implement a Trail using Cocos2dx

I'd like to implement a trail (like the white circles in Angry Birds) that chase my sprite. I already used CCMotionStreak, but the trail texture is "stretched" instead. Anyone has an idea how to make ...
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0answers
17 views

how to temporarily turn off/on multisampling for an OpenGL ES 2.0 render context in Android?

In my OpenGL ES 2.0 Android app, I render to an EGL surface with >= 2 samples; I obtain this surface by passing: EGL14.EGL_SAMPLES, 2 as part of the attribute_list argument for egl.eglChooseconfig() ...
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vote
1answer
232 views

libGDX new TextureAtlas(filename) and new Texture(filename) drawing stale image data

I'm trying to draw an image using libgdx but no matter what I do, libgdx seems to insist on drawing a portion of an image I had loaded and used in an earlier game screen. In my current game screen ...
0
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1answer
122 views

How to zoom and scroll in libGdx?

I am trying to both A.) Pinch zoom my game scene and B.) Move (scroll) my game scene but I have not found many examples. I learn more by examples than by reading API documentation (although I am ...
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1answer
21 views

Unity-UI not scaling correctly on android

My UI appears extremely small when i build and launch my game on my android device. Im working with unity 4.6. I've tried changing the UI scale mode of my canvas to all 3 types. Scale with screen size ...
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2answers
37 views

Sign APK of several games with same or different key?

When you choose a key for signing your APK for publishing in GooglePlay, you need to care of this key for the next 25 years if you want to do updates. The key should not be shared with anyone. The ...
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1answer
253 views

What would cause my script generated buttons and text to show in Unity and not on my phone?

I am using Unity 5 and the built in GUI tools. My static GUI shows up just fine which makes me think it's not a text/font issue or some such. Again, it all looks good in the Unity editor when I hit ...
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0answers
25 views

Change list in game? [closed]

I am really frustrated because I have been trying this for 4 hours today, and I can't find a solution. For some reason, my on long click listener doesn't get detected sometimes! ...
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2answers
3k views

Android multitouch: How to detect movement on non-primary pointer / finger?

How does one go about detecting a secondary/non-primary finger moving? There is: ACTION_DOWN and ACTION_UP to detect a primary finger pressing the screen / leaving the screen ACTION_POINTER_DOWN ...
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1answer
77 views

Unity apple/google ID access?

After extensive Googleing I have not come up with a way to access Apple ID's or Google ID's from unity running in respective devices. Either ID's or something else unique to the accounts logged in. I ...
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2answers
110 views

How can I randomly spawn circles on a screen but make sure they don't overlap?

I just need a general idea for how to do this. I have a list of Circle objects. Circle { private int yCoord; private int xCoord; Circle(int a, int b) { xCoord = a; yCoord = b; } } I randomly ...
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1answer
13 views

Make a sprite jump to a certain direction in libGDX

I was wondering how you can make a sprite jump to a certain direction in libGDX just like the brick does in the famous mobile game "Amazing Brick' I want to make my sprite jump up a bit to the right ...
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1answer
34 views

Scene2d How to make it work for a Visual Novel

I kinda understand that you can use Scene2d for a Hud or stuff like that, I'm new to Java and so far I've done games that update in real time like let's say Flappy bird (simple games), so i wanted to ...
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0answers
28 views

How to communicate from the server to the client? [on hold]

I would like to build a multiplayer game for iOS and Android. The game would have users logging in and play each against the other. The clients will make calculations and update the main server. But ...
2
votes
1answer
724 views

AndEngine - Performance problems with many entities

I'm developing a rolling scene based game I'm loading all the entities from a XML file and create them in the Loading Scene recently I increase the game width , and by doing so , in the whole level I ...
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1answer
66 views

Switch beetween Screen on LibGdx application

i have set main class like this: public class MyClass extends Game { MenuClass menuClass; ActionGame actionGame; @Override public void create() { menuClass = new MenuClass(this); ...
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2answers
113 views

Profiling LibGDX game with GLProfiler

I am trying to profile my LibGDX game, It runs on 60FPS on PC and 42-45 FPS on MY mobile phone. Either I improve performance and raise it to 60, or lock it at 30 (I don´t want to do this). I have ...
4
votes
2answers
616 views

How can I change width of sprite Dynamically?

I want to change width of sprite dynamically but i can't perform it.!! Here i want to change only my white sprite i want to use these type of facility in my game in using AndEngine I want to display ...
0
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1answer
2k views

Alpha Value at 0 Shows Black for Android Canvas Bitmap

There have been a few questions similar to this but none seem to give a straight answer. If I am creating a Bitmap from a .png image and want to set a color (i.e. true pink) to transparent, the color ...
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0answers
19 views

Alternative Sound lib with LibGDX

i'm making a 2D game for Android in Java using LibGDX. I find LibGDX sound management not good enough for me. I wonder if it's possible to use an external lib for playing and managing the sound and ...
2
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3answers
160 views

(Corona SDK) sounds and buttons show up in simulator, not in an Android device

I'm a noob in android game development, started with corona sdk and outlaw. My project runs just fine with the corona simulator on my win8, however, when building it to my android device (galaxy s3) ...
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1answer
81 views

Sprites are rendered as black rectangles in android 4.0.x only

I have some problems rendering sprites correctly on a LG optimus vu (android version 4.0) with libgdx. Basically sprites are black rectangles, while other images that i declare as Texture are correct. ...
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1answer
50 views

Black screen when launching on phone

I am coding a game in libgdx. While adding the background I used the html module to watch the results fast and easy on my computer. But when I try to see it on my phone I just get a black screen. My ...