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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1answer
40 views

Libgdx black rectangles problem

I'm working on a game for Android using Android Studio with LibGDX in Java. I recently found a weird problem when closing and reopening the game. When I first open the game, it works fine. If I click ...
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3answers
90 views

LibGDX simple button with image

I want to make two image buttons (play, restart) in my main menu screen but I dont know how to do it. I tried this: Texture playTexture = new Texture(...) Image playImage = new Image(playTexture) ...
2
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0answers
105 views

Bilinear filtering by sampling corners of a texel

I'm trying to do bilinear filtering in texels to get the convoluted value of a 3x3 block. Implemented as below: offsetx = 1/width offsety = 1/height Fragment shader: "varying vec2 vTextureCoord;\n"...
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1answer
31 views

libgdx collision on moving Rectangle with other Rectangle

I'm making a soccer game where you touch the screen and the player shoot the ball to the touched position with the objective of scoring goals when it hits the goal. The player is just a Sprite and the ...
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1answer
27 views

libgdx sprite placement

Im making a soccer game where you basically have to shoot the ball to the goal and the ball goes to where you touch the screen. Im having an issue with the ball though, when the ball spawns on the ...
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1answer
31 views

How to know when Android OpenGL Context has been preserved?

I am implementing a pause menu for my game in Android. If the activity pauses and then resume, It lose the OpenGl context. However if you use setPreserveEGLContextOnPause(true) it MAY preserve the ...
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2answers
32 views

i want to make four letter one word game. i have designed xml but getting problem in main activity java. [closed]

i want to make four letter one word game. I have designed xml using four imagebutton and randomly load from string array, but how to code entire java file. i am beginner to programming.
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0answers
17 views

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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0answers
19 views

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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0answers
44 views

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 ...
0
votes
1answer
51 views

Unity5 build won't run on android 2.3.3

I made a game using one of the Unity tutorials on their site and now would like to run on my phone (LG P500). But when I try to run it on the device, it says "Failure to initialize: Your hardware does ...
0
votes
1answer
56 views

Sprites blurred in Unity (filter mode set to point)

I'm new to Unity and I'm developing Android game. When I connect my phone with Unity Remote and launch game, all textured are blurred and they look awfull. Did some research and set Filter mode to ...
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0answers
64 views

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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vote
0answers
63 views

Libgdx stops all sounds when there are lots of sounds

I'm making a 2D game for Android using Android Studio with Libgdx in Java. I have a class, called SoundPlayer, which holds an ArrayMap. The key is the name of the sound file and the value is the sound ...
0
votes
1answer
50 views

Simplifying Object Factory

I'm making a game for Android using Libgdx with Android Studio in Java. In my game, I have a class called ObjectFactory which has a method createGameObject(int objectType) which receives an integer ...
5
votes
2answers
624 views

Main game objects as static

I'm making a game for Android using Android Studio with Libgdx in Java. In my game there are main object like Screen, ObjectFactory, SoundPlayer, Painter (Responsible for drawing) and a few more. 'til ...
0
votes
0answers
21 views

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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votes
1answer
52 views

How create/draw faded circles in Java

How do I create some circle - like the one on the image - in Java, and in various colors? I would like to make more of these circles to fly from specific position to random direction.
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votes
2answers
116 views

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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votes
1answer
44 views

LibGDX Textfield - Text Overflow - Not Wrapping

In my app's registration screen, the textfield is not wrapping text as I expected. Notice in the above image, the email field is not containing the text. I have set the size of the textfield using ...
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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 ...
0
votes
0answers
142 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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0answers
54 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 ...
0
votes
1answer
119 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 ...
0
votes
1answer
92 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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0answers
20 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 ...
0
votes
1answer
47 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
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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0answers
87 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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vote
0answers
54 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 ...
0
votes
1answer
31 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: ...
1
vote
1answer
89 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
1answer
84 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 ...
1
vote
1answer
130 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 ...
0
votes
1answer
47 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 ...
0
votes
1answer
74 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 ...
1
vote
1answer
60 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) findViewById(R.id....
0
votes
1answer
46 views

Translation matrix applyed to the view matrix not working (android opengl2)

I have managed to do an small app using opengl2 in android. It consists on a sphere moving over a rectangle, both with a texture. It's just a test in which I'm testing my first steps in opengl. Now I'...
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0answers
24 views

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 ...
1
vote
0answers
82 views

UnityWebRequest and/or HttpWebRequest give 403 on Android with PUT

I am trying to post an image captured through my game to Facebook through their SDK, and as it requires a URI, I wrote a simple AWS Lambda function to take a byte array and upload it to an AWS bucket. ...
0
votes
2answers
49 views

Handling accelerate in different devices

Hi I am adding tilt controls to my game.The sensor values I get are differ in different android devices which result in random behavior... Anyone knows how can I tackle this situation? I tried ...
0
votes
0answers
84 views

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. ...
0
votes
1answer
150 views

how to port my game for android in sfml [closed]

i am a c++ programmer , and I want to develop games . I chose sfml , because I wanted to see what happens behind the scene better . I have an idea to make , and the desired platform is mobile devices(...
0
votes
1answer
94 views

Why is my deltaTime in my GameLoop 0?

I have a question about my code. I wrote a basic GameLoop for an Android Game and while testing it I realized the deltaTime is always 0. The code looks like this: @Override public void ...
2
votes
2answers
137 views

Box2DLights in libGDX - Bad quality of the light gradient on Android

I am facing a problem while porting one of my libGDX project from desktop to Android : My game uses Box2DLights. While the light effect look very fancy on the desktop version of the game, it looks ...
2
votes
1answer
93 views

LibGDX How do I create a Shop? [closed]

My game is fully working but now I want to make a shop so that the player can buy boosts or other useful stuff for the money the player has collected. What is the best way of doing this kind of shops:...
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0answers
19 views

Behvior of Ninepatch when smaller then unstrechable area?

I create a healthbar from a Ninepatch background and "fill" texture. However, it starts overlapping it's patches when it gets very small. Is there anything I can do about this? Is there a way to ...
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0answers
13 views

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 ...
0
votes
1answer
38 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 ...
1
vote
1answer
104 views

How could I draw text in an 'info bubble' with libgdx?

I am making an android game using libgdx where there are textures on the screen which represent people. When you touch a person sprite I want a little info bubble to pop above their head displaying ...