Android is an operating system for mobile devices. For non-developer questions, see http://android.stackexchange.com

learn more… | top users | synonyms

0
votes
1answer
156 views

Cocos2dx - Trail

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 ...
0
votes
0answers
7 views

How to customize/disable Google Play service notifications

I'm using Google Play services to make a turn-based game. When a user invites friends or takes a turn while playing, Google will send a notification, but it can't directly open my game (instead, it ...
0
votes
1answer
172 views

Android OpenGL and non premultiplied textures

As I understand it; by default all bitmaps will will get the alpha channel premultiplied in Android if loaded using BitmapFactory. My setup: I have a 32bit bitmap(.bmp) where the alpha channel has a ...
2
votes
1answer
23 views

Using USB sound input for an android game - is it possible?

We are brainstorming ideas for an app, for a major project using Android Studio, and writing in java. My major is game development, so I intend on trying to build a video game based off the use of an ...
0
votes
1answer
186 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
votes
1answer
56 views

is there a formula to know how many enemies i can place before jumping character?

My game is very similar to the hidden game in chromes web browser. I have a character that needs to jump over incoming enemies. Is there any way i can know when to send an incoming enemy? Some of the ...
3
votes
1answer
1k views

Calling an android method from Unity3D with a JAR plugin

I am developing a game with Unity only for Android platform and I am requiring to share content of my game through an intent so I have implemented a JAR plugin according to several tutorials with this ...
0
votes
0answers
4 views

How to use Canvas.translate to make a camera scrolling effect in android?

I'm making a game in android, and I'd like the "camera" to be always drawing the character in the center, I've been searching and I found out that I should use this method, but I don´t know how to use ...
0
votes
0answers
11 views

Compiler error when building for Android after exporting Oculus assets

I have a Unity project which I'm planning to build both for PC and Android. The project is a VR game. For PC I'm using the Oculus SDK and for mobile I'm using ALPSVR SDK. I was working solely with ...
0
votes
1answer
83 views

How to make TMXTiledMap responsive?

I've been struggling with Cocos2d-x (C++) and finally I got to the point I feel more or less comfortable with that. My game is a 2D car-based one, with a straight infinite map where I've finally been ...
1
vote
1answer
21 views

libgdx - Check if body is touch

I have some bodies around the screen(Ball[] balls), and I would like to delete them when user touches them. Also, I have an Image as userData of the bodies. I dont want to make a function to all ...
0
votes
1answer
57 views

LibGdx Scalling sprites on Android

I have a sprite that is a few buttons but need them in the center of the screen for all android devices. I tried setting it's location to the center of the screen by dividing the orthogonal camera by ...
1
vote
0answers
13 views

Google Play Games Signs Out Automatically without Internet Unity

I am using this in my game to implement games saving and loading. I have also tried the basic sign in process by using the following start function :- { PlayGamesClientConfiguration config ...
0
votes
1answer
521 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 ...
0
votes
0answers
21 views

OpenGL- Render to texture- a specific area of screen

I implemented FBO on my OpenGL Game. and Im rendering what is rendered to screen to a texture, the problem is that rendering to texture starts from lower left corner. look: what is rendered to ...
-2
votes
0answers
24 views

Build 8 Ball Pool Game for android & Integrate it in eclipse Project [on hold]

I have build an android app in eclipse now I just want to add a 8 Ball Pool like game in it. My Question is Which platform(sdk) I can use to build the game and how can I integrate that game in ...
0
votes
0answers
7 views

AndEngine : Collision does not make line disappear

I have drawn the line between two sprites and there is a rectangle. When the line collides with rectangle the line should be invisible else the line should be visible. But i am having problem with ...
0
votes
0answers
9 views

simplest way to detect collision with two bitmpas on android surface view

as title said. I have looked all over and havent found standard way to detect collision between two bitmaps on surface view. I tried intersect method with two rectangles, but didnt work. `practiseA ...
0
votes
0answers
16 views

Opengl Create FBO- fatal signal 11 error

in my android game, i want to render My scene in the FBO and a texture attached to it, and use that texture later, But When i use glGenFramebuffers i get this error: 07-30 06:17:27.839: A/libc(1338): ...
0
votes
1answer
64 views

2d character generator for android games

I am a developer, and not an artist. is there a 2d character generator that i can feed one picture and it will generate the proper files to be displayed for a running animation?
1
vote
2answers
178 views

How do I refer to a native library with Unity 5 on Android?

I have a library called mylibandroid.a. This is given to me by another developer. I also have the iOS version of this lib, and have been able to access it from Unity. It is supposedly built for ...
-2
votes
0answers
30 views

How do i move an Object in a circular motion around a point? [closed]

i want my object run like this image. public class Move extends Activity implements View.OnTouchListener { private float x=30; private float y=30; private float angle = 120; private ...
0
votes
0answers
19 views

How to make a clone of Brave Frontier or Hero Buster? [closed]

A quick question for those experienced enough to answer this. I've been meaning to make a game like "Brave Frontier", "Hero Buster" and "One Piece Treasure Cruise" to give examples. I know C# and ...
0
votes
2answers
107 views

Game lags when my player collides with a specific object (solution known, unsure how to implement)

I'm developing a game in Android using LibGDX (although this is more of a JAVA problem than an engine problem). My aim is to have my player bounce off one spring onto another that will eventually take ...
1
vote
2answers
30 views

How can I add extensions to libGDX

I had a problem with my Font in a game I am developing in libGdx. After some googling I was instructed to use the following code: private void createFonts() { FileHandle fontFile = ...
2
votes
1answer
32 views

OpenGL ES God Ray Precision error

I have encountered the following (i think) precision error. (missing link need 10 rep) My source of inspiration was: (missing link need 10 rep) On the PC everything works fine, but on android it ...
1
vote
2answers
137 views

Libgdx: different speed on different devices

I am running a simple Libgdx app that I have wrote, on my Android phone and Android tablet and I am getting the unexpected result of having different velocities when a body is moved. To move the body ...
-2
votes
0answers
14 views

Android unity Build error [closed]

i add the admob in my unity project i got this error Error building Player: Win32Exception: ApplicationName='javac.exe', CommandLine='-bootclasspath C:/Android/sdk/platforms/android-21\android.jar" ...
2
votes
1answer
348 views

Word game - board implementation?

I'm working on a boggle type game for android, using libgdx. The user is presented with a 4x4 grid of letters and must find words by dragging their finger over the letters. Unlike boggle I want used ...
0
votes
1answer
34 views

android canvas rope swing

I'm creating the code, where a player swinging on a rope for the moment I got this double angle = Math.atan2(player_y - center_y, player_x - center_x) - Math.atan2(end_y - center_y, end_x - ...
2
votes
2answers
160 views

How can I get the pressure of a touch in Unity?

Does anyone know how to get the getPressure function from the Android API into Unity? Or is there another way I can access the pressure of a touch?
1
vote
1answer
37 views

Playing with hashmap in drawing

I'm developing a game in Java for Android, using LibGDX. In my render(), between the batch.begin() and batch.end() I'm running through all the game objects and draw them. Every game object is stored ...
0
votes
1answer
84 views

How to clip or mask entity in adnroid/andengine?

I want to implement masking with sprite in Andengine. I want same functionality as in ios class called SKCropNode which works like an masking node! Is there any workaround like this in ...
1
vote
1answer
29 views

libgdx continuous movement while touch and hold (even after jump)?

So, I have these buttons where I have implemented a method to handle 'touch and hold' (without polling). If the player touches and holds the walk button ..it will keep walking till the button is ...
0
votes
1answer
97 views

Scene2d Stage Actor setup issues

I am creating a game using libgdx. In the same each level has a class. I have stage as a member variable of the class. To this stage, I add actors. Inside the levels class, I have attaced the input ...
0
votes
1answer
33 views

Marketing PC/Android 2d Physics Game

I've been working on a game for couple years now, its fairly original, has definite potential within an indie market, and appeal for the masses also. I want to deploy on Android and PC, green-light ...
0
votes
1answer
146 views

Framerate on AIR for Android - Actionscript 3

I am currently working on making Android apps using AIR for Android. This is a sample file and package that I am running to test the FPS and Memory usage of my application while it is not even doing ...
0
votes
2answers
99 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) ...
0
votes
2answers
498 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(); ...
3
votes
2answers
5k views

Problem to match font size to the screen resolution in libgdx

I'm having problems to show text on my game at same size on different screens, and I did a simple test. This test consists to show a text fitting at the screen, I want the text has the same size ...
0
votes
0answers
32 views

Capture what is Rendered in OpenGL

Im Making an android Game with OpenGl ES, I Want to capture what is rendered onto screen By FloatBuffer and save it for later use, For Example If this is the OutPut: I want this for Result: How ...
0
votes
1answer
223 views

Touch pad controls not working in apk, working from Unity Remote

I've come across something unusual with my HTC One M8, I'm not sure if it's phone specific, a bug in unity, or just poor setup on my part. I've been using Unity Remote 4 to test in realtime, and it's ...
4
votes
5answers
30k views

How can the Unreal Development Kit be used with Android?

I've read the UDK will support Android development, I checked the download page on the site and found nothing related to Android. also read that Dungeon Defenders Android game was built with Unreal ...
0
votes
0answers
31 views

NullPointerException in android.app.Activity.onCreate(android/app/Activity.java:874)

I'm trying to get libGDX 1.6.1 to run on Android via Ruboto. So far, I: Generated a new libGDX app using the app generator Got the desktop app to run (Java) Got the android app to run (Java) ...
1
vote
0answers
41 views

Libgdx performance on old devices

I'm developing a game in Java for Android, using LibGDX. I'm using Nexus 5 to test my game most of the time and it works great (Minimum FPS it gets is 57 out of 60). Recently I ran my game in Galaxy ...
0
votes
1answer
216 views

How can i draw Arc in center of the screen on canvas in android

RectF rectf = new RectF(10, 100, 700, 800); c.drawArc(rectf, 0, 90, true, paint); the above code is draw the arc using drawArc() method of canvas but i try to draw arc in a center of the screen.
1
vote
1answer
32 views

Java - Trouble with recursion and rectangle placement

I am using Android API's and using the RectF class for rectangles. I have a list of blocks that are on the screen at one time. Each block is given a random position, and then I go through all of the ...
0
votes
1answer
325 views

Android Game-Loop (rendering & logic removed, but still 'skipping frames')

Overview Guys really hopeing for some help here. My game loop is based on code from Fix Your Timestep!. I've read the article more than a few times, but I can't quite work out what exactly is ...
1
vote
1answer
42 views

Android OpenGL EGL context lost

I'm developing simple Android game in OpenGL ES 2.0 and the development stage is getting closer to publishing game on play store, but I'm still unsure about EGL context behaviour on different devices. ...
0
votes
1answer
28 views

How to send dynamic data to a vertex shader OpenGL ES 2 Android

I'm very new to Android development and OpenGL ES 2.0. I have been working through a book called "OpenGL ES 2 for Android A Quick Start Guide" which has been useful, but at times I get a bit lost as ...