Here is a simple example of a button fading an image out and fading in a different image on a button in Unity 3d. I have also included how to go to a new scene/level using the button with either index of the scene or by title of the scene.
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Here is a simple example of using the Thread Class for a Multithreading application . Shows how to use the Progress Dialog, Handler, and running on the UI Thread. Also how to handle the Looper.prepare() error (“java.lang.RuntimeException: Can’t create handler inside thread that has not called Looper.prepare()”). If you are getting this error then you are trying to do work that should be done on the UI/Main thread. I have example in the code to handle this.
Here is an example of uploading Json Data to a MySQL database on a website/Server from a Android phone. This is great to upload user data from the phone to a website. The bad thing is that you have to use a different Thread instead of the main UI thread. It fairly simple to multithread even though some examples makes it pretty complicated. Check out my attempted to explain an example of using the Android Thread class.
Here is an example of how to select a game object by touch using Unity 3d’s Physics Raycast. The first part is to find the game object that the user is touching with their finger. This is done by a raycast. If that is all you want to do then you can skip the inner ‘if statement.’ The next step is to get the finger’s position in pixels and then convert it to game world coordinates.
If you want to add text to a picture that you took from your Android camera app that you built then you came to the right spot. This is an addition to my post Camera Application in Android Example. So if you do not have a working camera app yet then I would recommend using the code posted there. It is only small addition and you should not have an issue adding the code to your existing code. Here is an example of a picture with text printed on the picture:
Here is a full example of building a camera app in Android that was taken from the Google tutorial.This is the complete tested camera code all in one place with no errors. There was a few errors i got from copying and pasting the code from the Google tutorial but they are fixed in this example. I also added code to display the last image taken so the user can open the picture in a image viewer. I removed excess code without testing so comment if you are having issues so I can make corrections.
Here is how to center 2 buttons inside a layout. These do not have to be buttons but can be any type of view. The idea behind it is to create a layout and add two horizontal Linear Layout inside and assign the same weight to both. When the buttons are inside then center the buttons inside the layout. Since each layout is set to ‘match_parent’ then it will scale to any screen size.