AndEngine Button实现

 发现AndEngine没有传统的Button。

于是自己继承源码并实现了一个，具有基本的onClick事件

最为基本类，可以继承并实现状态按钮，自更新按钮等。

 

import org.anddev.andengine.engine.camera.Camera;
import org.anddev.andengine.engine.camera.hud.HUD;
import org.anddev.andengine.entity.layer.ILayer;
import org.anddev.andengine.entity.sprite.Sprite;
import org.anddev.andengine.input.touch.TouchEvent;
import org.anddev.andengine.input.touch.detector.ClickDetector;
import org.anddev.andengine.input.touch.detector.ClickDetector.IClickDetectorListener;
import org.anddev.andengine.opengl.texture.region.TextureRegion;

import android.util.Log;


public class XDButtonBase extends HUD implements IClickDetectorListener {

	
	//fields
	private Sprite mControlButton;
	private TextureRegion onStateRegin = null;	
	private final XDButtonClickListener mXDButtonClickListener;
	
	//Constructors
	public XDButtonBase(final int pX, final int pY, final Camera pCamera, final TextureRegion pOnRegion, final float pTimeBetweenUpdates, final XDButtonClickListener pXDButtonClickListener) {
		this.setCamera(pCamera);
		this.mXDButtonClickListener = pXDButtonClickListener;  //控制外面
		this.onStateRegin = pOnRegion;
		this.mControlButton = new Sprite(pX, pY, pOnRegion) {
			//控制内部变化
			@Override
			public boolean onAreaTouched(final TouchEvent pSceneTouchEvent, final float pTouchAreaLocalX, final float pTouchAreaLocalY) {
				Log.i("ST", "onAreaTouched");
				mXDButtonClickListener.onClick(this);
				return false;
			}
		};
		final ILayer bottomLayer = this.getBottomLayer();
		bottomLayer.addEntity(this.mControlButton);
		this.setTouchAreaBindingEnabled(true);
		
	}
	
	
	@Override
	public void onClick(ClickDetector pClickDetector, TouchEvent pTouchEvent) {
		//不知道如何触发
		Log.i("ST","onClick ST");
		
	}
	
	public interface XDButtonClickListener{
		public void onClick(final Sprite sprite);
	}
}