switch (Gdx.app.getType()) {
    case Android:
        // android specific code
        break;
    case Desktop:
        // desktop specific code
        break;
    case WebGl:
        // HTML5 specific code
        break;
    default:
        // Other platforms specific code
}

On Android, one can also query the Android version the application is currently running on:

int androidVersion = Gdx.app.getVersion();

This will return the SDK level supported on the current device, e.g. 3 for Android 1.5.

Memory Consumption 查询游戏运行时占用内存的状况

For debugging and profiling purposes it is often necessary to know the memory consumption, for both the Java heap and the native heap:

long javaHeap = Gdx.app.getJavaHeap();
long nativeHeap = Gdx.app.getNativeHeap();

Both methods return the number of bytes currently in use on the respective heap.

demo：

package com.example.groupactiontest;

import com.badlogic.gdx.ApplicationListener;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.GL10;

public class MyGame implements ApplicationListener {

	
	@Override
	public void create() {
		switch (Gdx.app.getType()) {//获取libgdx游戏所运行的平台
		case Android:
			System.out.println("--------->你现在用的是android设备...");
			break;
		case Desktop:
			
			break;
		case WebGL:
			break;
		default:
			
		}
		
		int androidVersion = Gdx.app.getVersion();//获取你的android设备的SDK版本所对应的API level
		System.out.println("运行所运行的游戏的平台是: " + androidVersion);
	    
		//对本app占用内存的状况的查询
		long javaHeap = Gdx.app.getJavaHeap();//获取javaheap
		long nativeHeap = Gdx.app.getNativeHeap();//获取本地heap
		
		System.out.println( "javaHeap: "+ javaHeap);
		System.out.println( "nativeHeap: "+ nativeHeap);
	}

	@Override
	public void dispose() {
		// TODO Auto-generated method stub

	}

	@Override
	public void pause() {
		// TODO Auto-generated method stub

	}

	@Override
	public void render() {
		Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
	}

	@Override
	public void resize(int arg0, int arg1) {
		// TODO Auto-generated method stub

	}

	@Override
	public void resume() {
		// TODO Auto-generated method stub

	}

}