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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Touchscreen panning in OpenGL ES 2.0

I'm trying to allow the user to pan a 2D scene by using the touch screen. I have tried several methods including translating the projection matrix, translating the view matrix and haven't found ...
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OpenGL ES multiple objects not being rendered

I am doing the following to render multiple balls move around the screen but only 1 ball is seen to appear and function. I don't know why the rest (count-1) balls are not being drawn public void ...
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Adding Libxml2 to an Android project under Cocos2D-X

I am having problems porting Libxml2. I like it because it works under windows like a charm with <libxml/parser.h>. When I reference the libraries I just cannot find the right path to them, ...
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How to Store the game score in android cocos2d

I calculates the score in game project using android cocos2d, in that game after finishing the first level it goes to the next level, so i want to store that first level score and also add next level ...
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How to create apk builder to convert html to apk

I'd like to build automated tool like apk builder. The objective here is to convert html from local drive into apk. What crosses into my mind is to implement a GUI, css for styling the apk, but I don'...
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Android/Gear VR: Smooth walking with gamepad

I'm working on an Android app for the Gear VR using the Oculus SDK (Java, Eclipse) and I used this website to help me handle controller input, so I understand the whole concept of the center axis for ...
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Android Ant Release Signed Build Stopping with Google Play Services Library

I'm trying to build my android app in release build with google play services. First off, without any extra libraries, I setup my keystore and alias password and include it in ant.properties of my ...
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Libgdx Music is not working again

I am starting background music when the user goes to the PlayScreen and when the kid in the game dies, the background music stops and starts game over music and move to game over screen, then the user ...
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Libgdx Ending level is not working properly

In my game the kid is collecting fruits but if he hits the rock 3 times or time is up before collecting the required points, the kid will jump to the half of the screen then fall down and start fail ...
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Two Viewpagers - swipe from one to another cause stuck

I have two Viewpagers, one is controlling whole layouts (pages), and second holds some items. First one is named viewPager1 in this image: Works good, but not perfect; As you can see, there's ...
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Coordinate code for moving the object from one side to others side

I'm trying to make a 2D games, like airplane in android. To play the airplane, the user must shake the phone and then the airplane will move from left side to right side. And I don't know how to move ...
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How to program light effects in Andengine

I'm trying to make some light effects to my game, but for now i failed to do it well, i try put 3 Sprites: bitmap1 = new BitmapTextureAtlas(getTextureManager(), 1400, 1400, TextureOptions.DEFAULT); ...
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libgdx : starting animation disables imagebutton

I am playing an animation on clicking an imagebutton in android. Both the imagebutton and the Image for animation are actors on same stage. Animation plays perfectly, but the issue is after the ...
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How to use touch.deltaPosition properly?

I use following code for measure touch delata position: private Touch firstDetectedTouch; public Vector3 dragDistance; void Update() { if (Input.touchCount > 0) { ...
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Libgdx game doesn't work correctly after game over screen

So, I am trying to create a platform game for Android. As part of the game, I have created ladders that the hero is climbing. When he hits the enemy he dies, there is a game over screen --> touch to ...
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Admob banner causes lag while playing Android Libgdx game

I hide banner ads while playing and show on game over screen but while playing game lags. If I disable ads then there is no lag. Or if I connect to wi-fi, again no lag, but with mobile data it lags. ...
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HTML5 game - Difference in layouts in webview of app and webpage

I have created a working prototype of an HTML5 game and tried to convert it into an android app using PhoneGap. My issue is that the layout of the screen is bigger in case of the webview of the app. ...
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Paint objects cause lower FPS by time

I'm creating squares on XML layout with Paint, you can see how exactly bellow: public class PaintObject extends View { Paint paint; public int x; public int y; public PaintObject(...
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Removing no longer used paint out of screen

I have Paint, like this: Paint paint = new Paint(); paint = new Paint(Paint.ANTI_ALIAS_FLAG); paint.setStyle(Paint.Style.FILL); paint.setStrokeWidth(5); paint.setColor(Color.BLUE); and I'm drawing ...
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LibGDX works well on android 4 and very bad on android 5 and 6

I have a problem with my game. The game is made with libgdx, scene2d and box2d and it uses an AssetManager. I tested this app on all my devices and here it is the results: Galaxy S3, android 4 (...
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POST & push for turn-based network?

Can you create a viable two player turn-based networking implementation using only REST API for outbound and push for inbound data? If a game is comprised of, on average, 30 moves, is it a bad idea to ...
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Direction buttons for Android game

I am new to Android development and i am trying to develop a game. I have a basket which is used to catch different objects which are falling down randomly. Now to catch those objects, i am currently ...
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HorizontalScrollView with multiple views in one “frame”

I have ImageButton, with TextView and ImagaView inside it. I have six of these. So I want to implement them into HorizontalScrollView. I remember I had one HorizontalScrollView with images some time ...
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Libdgx and Overlap2D export settings for Android

So I have a problem when exporting assets from Overlap2D to Android Studio project location. When setting up libgdx I set the project to be for desktop and android and selected Overlap2D extension. ...
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Is there a specific file in the NDK that I need to link Unity3d to?

This is Android Development. I'm having issues with Unity saying that Android NDK isnt installed. I gave it the file path to the NDK directory. Its the exact NDK it told me to install (Unity). Do i ...
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Unity Android character controll with UI Buttons

So I'm trying to find a good tutorial which will explain how to controll character in 2D game when button is clicked (left, right, jump button). All the tutorials I've found are outdated and not ...
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How to update projectile trajectory point?

I am a new game developer, I am making a game, but I have a problem, I don't know how I can update my trajectory point in OnDraw method. Could anyone please help me? Thank you! Here is my code: ...
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AdMob Banner appears 960x150 instead of 320x50 in libGdx - what's wrong here?

I am a bit helpless with this strange effect from AdMob. AdView is instanciated in code and so is the relative layout and libGdx view. View view = initializeForView(Engine.createEngine(G....
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145 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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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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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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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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Ads are loading, but not showing?

TL;DR: My interstitial ads in my game are successfully loading, but when I call .show() on them, they don't show up! I have followed these directions, and the ads load succesfully, but don't show ...
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Unity bloom effect doesn't work on some mobile devices

I tried to implement bloom effect (standart Unity asset) to my game but after make android build bloom stops work on some devices e.g on Samsung galaxy s3 it's fine but on Samsung galaxy s5 it's not. ...
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Overlaying interactive Content over the stream from a camera in a native iOS/Android app

I'm making a game for iOS/Android that requires the user to point their phone at a scene and interact with a 3D object that is overlaid over the stream from their camera. The object is a fairly simple ...
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Implementing BaseGameUtils with LibGDX for Google Game Services

I'm developing a game for Android in Java using Android Studio and LibGDX. I'm trying to implement the Google Game Services inside my game but I'm having trouble using the BaseGameUtils. Every time I ...
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OpenGL ES 2.0 how to access LUT

I've created a look up table for my fragment shader and I'm passing it in as a uniform float array. uniform float hueLut[360]; My program works fine on most devices but I ran across one device ...
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Move/Rotate 3d multiple objects w.r.t. to one another in libgdx

I have two blender objects in .g3dj format. Below is the code : private void createBaseArm1(){ // Now load the model by name from asset folder baseArm1 = modelLoader.loadModel(Gdx....
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Bloom does not work for Mobile [Unity]

I've added the Mobile Bloom shader to the camera and I have Emissive HDR objects in my scene and I've set the graphics quality to the highest. I do not have anti-aliasing enabled but the bloom effect ...
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get object location in 3d view libgdx

Below is the code of rendering the .g3dl model. I am trying to find the x, y, z co-ordinates of model's top view in 3d (Android) from origin (0, 0, 0) using calculateBoundingBox. I am stuck with no ...
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Stretch Textures to screen width and height with StretchViewport

I have an orthographic camera that have viewportWidth = 540 and viewporHeight = 960. My backgrund texture is 1080x1920 pixels. How can i resize the texture to fit the camera using a StrechViewport. ...
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Problem with google analytics referral tracking in Unity3D game on Android

In my recent game I used google analytics plugin for unity. Link here: https://github.com/googleanalytics/google-analytics-plugin-for-unity Everything works fine but I'm unable to track install ...
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Simple OpenGL ES 2 program fails

I'm stuck on a very simple OpenGL ES application from 2 days now. I am a "beginner" OpenGL developer, and this is my first attempt at the ES version on android. This is a VERY simple app, the usual ...
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Libgdx moving a body sequence

How can I move a body (box2d) to different points in an order. Like first it moves to 100,200 then to 200, 450 and so on? I've tried actions(and actor) but I can't get the point where the body is ...
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Unity crash on development build

Every time I check the development build, my game crashes just after turning my screen black. To be more specific, I've tried to create a development build of my game using Unity 5.3 on Windows 8. I ...
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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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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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56 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 ...
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60 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 ...
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How can I change the color of the default android drawable star?

I asked a question before and I got an answer to do this: Drawable drawable = getResources().getDrawable(android.R.drawable.btn_star); drawable.setColorFilter(Color.YELLOW, PorterDuff.Mode....