Cross-platform Development – Build Once, Deploy Anywhere - Learning LibGDX Game Development - page 63

//do something
}
});
The graphics module
The graphics module can be accessed either through Gdx.getGraphics() or using
the shortcut variable Gdx.graphics .
Querying delta time
Query LibGDX for the time span between the current and the last frame in seconds
by calling Gdx.graphics.getDeltaTime() .
Querying display size
Query the device's display size returned in pixels by calling Gdx.graphics.
getWidth() and Gdx.graphics.getHeight() .
Querying the frames per second (FPS) counter
Query a built-in frame counter provided by LibGDX to find the average number of
frames per second by calling Gdx.graphics.getFramesPerSecond() .
The audio module
The audio module can be accessed either through Gdx.getAudio() or using the
shortcut variable Gdx.audio .
Sound playback
To load sounds for playback, call Gdx.audio.newSound() .
The supported file formats are WAV, MP3, and OGC. However, for the iOS version,
OGG is not supported. There is an upper limit of 1 MB for the decoded audio data.
Consider the sounds to be short effects such as bullets or explosions so that the size
limitation is not really an issue.