Projects / Mobile Developer Challenge

Challenge Index
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{{{
01 - Hello World
02 - Hello Image
03 - Hello Image World
04 - Hello You
05 - Show Us Your Balls
06 - Moving Balls
07 - Bouncey Balls
08 - Indecisive Balls
09 - Reverse Balls
10 - Lossy Balls
11 - Noisy Balls
12 - Flick my Balls
}}}

01 - Hello World
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Display the text "Hello World" on the screen.

02 - Hello Image
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Display the supplied image "robot_porn.gif" on the screen.
Preferably centered, and fit to screen, but not required.

03 - Hello Image World
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Display the supplied image "robot_porn.gif" on the screen, with "Hello World" overlaid over the image.
Preferably, the image is centred and fit to screen.
Coloring of the text to make it stand out would be tops too.

04 - Hello You
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Display an Input and a button. Allow the user to enter their name into the input, and on pressing the button, they will be presented with the text "Hello <name>" on the screen.

05 - Show Us Your Balls
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Display a circular object on the screen

06 - Moving Balls
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Display a circular object on the screen, moving in some manner

07 - Bouncey Balls
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Display a moving circular object on the screen that moves at a constant rate.
On collision with the screen boundary, this object should bounce and continue moving.
Inelastic collisions are optional.

08 - Indecisive Balls
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Same as 07 with the following additions/changes:
A start/stop button will show "stop" when the ball is moving. Once pressed it will stop the ball, and the button will read "start".
Starting will enable the ball to continue on its previous course at its previous speed.

09 - Reverse Balls
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Same as 08 with the following additions/changes:
A "reverse" button will cause the ball to reverse its direction, retaining speed.

10 - Lossy Balls
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This challenge builds on 09 but should add the following additions/changes:
Collisions with walls should be inelastic and the ball should also loose speed as it moves. This means that the ball will eventually come to a stop. When the ball hits a wall the screen should be rendered slightly brighter to highlight the impact (and give somewhere for the energy to be lost in a virtual way :-).

11 - Noisy Balls
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This challenge builds on 10 but should add the following additions/changes:
Sound is to be added to the challenge. A single sound sample is to be used and each time a wall is hit with the ball the sample should play. If the ball happens to hit two walls at exactly the same time (in the corner) only one sample should play.

12 - Flick my Balls
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This challenge builds on 11 but should add the following additions/changes:
Touches to the screen must be handled. If the user touches the screen where the ball is then it will instantly come to a stop under their finger. If they move their finger around then the ball will follow it. As soon as they lift their finger the ball will continue in the direction it was last moving and act as it did in Noisy Balls