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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2answers
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Java RPG class implementation (design pattern ?)

For my school project I'm making a little NFC based game on Android. The concept is simple, on each phone you create a character and you can fight with other people through NFC. The character will ...
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1answer
1k views

libGDX using Stage and Actor produces different camera angles on desktop and Android Phone

libGDX using Stage and Actor produces different camera angles on desktop and Android Phone. Here are pictures demonstrating the problem: http://brandonyuh.minus.com/mFpdTSgN17VUq On the desktop ...
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1answer
43 views

Google Games Services Display Orientation

I'm developing a game using LibGDX and I'm using BaseGameUtils to implement Play Games Services in it. It's working very well. But my game is in landscape mode, so when I call leaderboard or ...
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1answer
419 views

Why is my screen black?

I'm developing an android game, and my screen is not displaying what I want it to. I've read various tutorials but they are either outdated or hard to follow. I have followed this tutorial and most of ...
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1answer
90 views

Cant write/read to/from external storage with LibGDX

My create method looks like this: @Override public void create () { batch = new SpriteBatch(); FileHandle file = Gdx.files.external("file.txt"); file.writeString("My god, it's full of ...
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1answer
283 views

Handling Back Button in Android without implementing InputProcessor

Please advice/clarifyon below issue in libgdx while handling back button in Screens. I have already gone through these 2 threads, ...
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1answer
93 views

Libgdx rotate sprite with collision

Im making a game where I have an object in the center of the screen and then balls come out from the sides of the screen. When you touch the screen the object rotates 90 degrees clockwise and it has ...
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votes
3answers
801 views

First Mobile Indie Game - Monetization Model. Ad based or in app purchases? [closed]

We are a team of 3 (1 graphics designer, 2 developers). We're almost done with our first Android based indie game. Which monetization model will be suitable for us? We don't want to disturb users with ...
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1answer
209 views

Unity Augmenter Reality on Android with Video playing

Hey sisters and brothers, So, I created an augmented reality marker, which works perfectly, I was able to display 3 shape on the screen with my Nexus 5. I would like to replace my shapes with a ...
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1answer
30 views

Libgdx + Box2d working with 2 cameras

Recently I have read that you can work with 2 cameras whenever you involve Box2d, which only works in meters. In my Renderer class, I receive all the entities in the game and then draw them. I work ...
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vote
1answer
143 views

LibGDX - Level management on a level-based game

I'm new to LibGDX and android development in general and am trying to do a puzzle game. Being a level-based game, i'm trying to make it so in every level a certain number of blocks (just rectangular ...
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2answers
127 views

Android libGDX FreeTypeFontGenerator exception

I am working on a libGDX project for Android. Since I added the following code, running the game on my Android phone produces an exception: final FreeTypeFontGenerator generator = new ...
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vote
1answer
29 views

Function call to AndroidJabaObject to an instance of com.prime31.PlayGameServicesPlugin causes the application to stop responding

Using Prime31 PlayGameServices attempting to call 'authenticate' causes the game to stop responding very soon after. There isn't much I can show as there's literally no logs showing up in logcat. Is ...
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2answers
154 views

In-app update, live update, hotfix for mobile game

I'm researching how to make an in app update on mobile game. When there is a hotfix, or an update, users don't have to go to Playstore, or App store to update but update inside the game. (E.g. Clash ...
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votes
0answers
14 views

Android Studio:ive desing my game to fit 1080*1920.how to scale it to different sizes? [duplicate]

all the bitmaps in my app are scaled for 1080*1920,so when i run my game on a smaller or larger screen it breakes...i know i can manually scale each one of the values to fit the screen size,but it ...
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vote
1answer
400 views

Generate ETC2 compressed texture from Android Bitmap in OpenGL ES 2

My app currently uses a lot of textures most of which probably could be compressed quite a lot by using ETC2 (my app runs on 4.4 so i have a lot of devices supporting GLES30), i cannot use ETC1 since ...
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votes
1answer
40 views

cannot implement GLSurfaceView.RENDERMODE_WHEN_DIRTY

I'm trying simply to display an openGL surface when I click the screen using GLSurfaceView.RENDERMODE_WHEN_DIRTY mode but the surface does not display when I click it , why ? my Activity : public ...
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0answers
35 views

Standard file path for pictures in Android

I created a png file from an RenderTexture and I can save it to the standard directory in Windows. Now I want to do the same in Android. How can I get the standard picture path?
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1answer
26 views

transfer 3d model processing from Xna to Android?

I developed xna scenario in Desktop application and i need to make the same scenario in android app I we need to make processing in desktop and just display it in android app using socket programming. ...
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vote
1answer
124 views

Change screen from main menu to game

I'd like to know how I can change the screen from the Main Menu to the Game itself but im having quite the trouble and I would appreciate the help. What I want to do is when I press btn.Play it ...
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votes
1answer
47 views

libgdx: SpriteBatch and ShapeRenderer projection wrong

I'm using LibGDX and the SpriteBatch and ShapeRenderer are having a perspective problem or something... When I draw something with both (code below), the planet texture is smaller than it should be. I ...
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0answers
27 views

LibGDX - black bars, FitViewport and drawing background

actually I'm creating game in LibGDX and i have few problems. I'm trying to solve resolution and aspect ratio problem by using FitViewport but i want to dispose black bars which occur when resolution ...
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vote
1answer
49 views

GameMaker android support

Game-maker asks me to install android sdk api 13 for it to work. I opened the SDK Manager so that I install it, clicked at API 13 and I couldn't be able to click the "install packages" button. I ...
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votes
1answer
23 views

Having trouble going from the menu I created w/ Android normally to my LibGDX game file

So I wanted to use Android Studio to create the menu for my game so I created a button with an onClick method that included the Intent i and startActivity(i) but when I clicked the button the app ...
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votes
1answer
39 views

LibGDX: how to implement 2 cameras in a unique stage

I am quite new to LibGDX. I am trying to make a game, where the character is an Actor, and it's controlled by a Touchpad(included in the main Stage as an Actor too). My problem is that I am trying to ...
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0answers
35 views

Unity3D - Android build has no Internet Access

I'm having trouble connecting to the internet in an Android build. I created a simple program that checks if there is an connection. Also I set in 'Edit > Project Settings > Player' the Internet ...
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1answer
357 views

How to make unitypackage from allseen alliance's android sdk?

Im making an offline multiplayer for Android device by Unity and I found only one way to do this is the allseenalliance sdk. After download its from here I found that to use it I need to create an ...
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0answers
14 views

Physics2D lag on increased timescale Unity

I have been working on an infinite runner kind of game in which i am trying to implement a speedup powerup kind of thing . Something that will allow me to boost through the levels at a high speed I ...
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votes
0answers
35 views

How can I fix this error when packaging my Android game in Unreal Engine?

Whenever I try to package my Android game, it gives me an error message in the output log that says "PackagingResults:Error: Error Unknown Error," and thus it doesn't package my Android game. How can ...
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3answers
436 views

Unity Application.LoadLevel freezes the game on Android device

I'm developing a game using Unity. The game has a single level and after the player wins/loses, I simply want to reload the same scene. Here's the code I'm using: private void OnLevelFailed() { ...
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0answers
18 views

Is this how I use activities in android studio?

I'm a student who is just stepping into android game development. I'd like to create a text-based RPG game for android and started to learn about Android Studio (I think Android Studio is enough ...
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0answers
38 views

libGDX text doesn't appear in TextField

A game I'm working on has libgdx's TextField. They work fine in every instance I've used them, however on a play tester's phone he says no typed text appears in the box until enter or space is ...
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0answers
14 views

Move ball through a direction angle in android canvas [duplicate]

I am building a simple game in android. I am successful in first step where I draw a ball in canvas in touch point. Now I am trying to move it from an initial point A (center) through the touch point ...
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1answer
37 views

Canvas doesn't draw

I've set app view on XML based layout: setContentView(R.layout.mlayout); with some views objects on it. Then, I added another view via: RelativeLayout layout = (RelativeLayout) ...
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votes
1answer
16 views

How do I know if the ad is open while the use pressed the back button?

I am trying to reward a user a point whenever they watch/look at an ad. I give the user the reward whenever they watch the ad. However, the user earns a point even if they go to the ad and click back: ...
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vote
1answer
59 views

libgdx - Texture not appearing sometimes

When I run the App the Ball moves sometimes downwards, but sometimes its not moving. I dont change anything on script. What I want is the ball should come from top outside of the screen, but when its ...
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vote
2answers
123 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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0answers
33 views

Share Image on Android Application from Unity Game

I've captured screenshot in my game when player dies. I've following code to capture screen shot. RenderTexture rt = new RenderTexture (800, 600, 24); MainCamera.targetTexture = rt; ...
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3answers
213 views

How to implement jump in a 2d game?

I am trying to implement jump in a game I have written for android using canvas. I have referred this tutorial for implementing jump. My code is like if(jumpKeyPressed){ jumpVel = ...
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votes
1answer
44 views

How can I check on a large number of points to see if they're inside the camera's frustum?

I have a locally stored database on my Android project, it is a database of approx 100,000 Point3D(double,double,double). I need to check if each of these points are inside of the camera's frustum in ...
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1answer
50 views

Draw wireframe models for Gear VR app: Unity or Eclipse?

I want to create a 3D Android app for Gear VR that does/lets me do the following: Read an input file with a bunch of coordinates of points (including information about how they should be connected) ...
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vote
2answers
361 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 ...
3
votes
1answer
80 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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votes
1answer
66 views

Reskinning assets on-the-fly with LibGDX TextureAtlas

I'm building a game for Android using LibGDX and I'm attempting to add in a skin feature so players can change the look of the game on-the-fly. I've packed the skinnable assets into their own .pack ...
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vote
1answer
63 views

Reducing mobile build size

This is my second time making and game and I want to make sure that I fit under 50 mbs. So far my plan is to fit all the games artwork into two 2048x2048 sprite sheets. I tested a empty unity3d ...
3
votes
2answers
173 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 ...
0
votes
1answer
19 views

draw two models changing the MVP matrix (android opengl)

I'm newbie with opengl2 in android, and I'm making an app in which I'm testing some things. Now I was trying to duplicate a sphere object with a texture, so I thought it was enough to change my MVP ...
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1answer
276 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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vote
1answer
826 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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votes
1answer
421 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 ...