android - 如何使用andengine LayoutGameActivity加载精灵

Question

我想将我的扩展活动从更改simpleBaseGameActivity为LayoutGameActivity，请帮助我通过简单的示例在场景中加载精灵并使用布局游戏活动显示。我是新手，andengien任何人都可以提供详细代码。提前致谢。

Answer 1

示例活动代码：

package com.alexeyw.andenginefirstrun;

import java.io.IOException;

import org.andengine.engine.camera.Camera;
import org.andengine.engine.options.EngineOptions;
import org.andengine.engine.options.ScreenOrientation;
import org.andengine.engine.options.resolutionpolicy.RatioResolutionPolicy;
import org.andengine.entity.scene.Scene;
import org.andengine.entity.sprite.Sprite;
import org.andengine.opengl.texture.ITexture;
import org.andengine.opengl.texture.TextureOptions;
import org.andengine.opengl.texture.bitmap.AssetBitmapTexture;
import org.andengine.opengl.texture.region.ITextureRegion;
import org.andengine.opengl.texture.region.TextureRegionFactory;
import org.andengine.ui.activity.LayoutGameActivity;
import org.andengine.util.adt.color.Color;

public class FirstRunActivity extends LayoutGameActivity {

    private static final int CAMERA_WIDTH = 400;
    private static final int CAMERA_HEIGHT = 400;

    private ITexture mBadgeTexture;
    private ITextureRegion mBadgeTextureRegion;    

    @Override
    public EngineOptions onCreateEngineOptions() {
        return new EngineOptions(true, ScreenOrientation.LANDSCAPE_FIXED, new RatioResolutionPolicy(CAMERA_WIDTH, CAMERA_HEIGHT), new Camera(0, 0, CAMERA_WIDTH, CAMERA_HEIGHT));
    }

    @Override
    public void onCreateResources(OnCreateResourcesCallback pOnCreateResourcesCallback) throws IOException {
        this.mBadgeTexture = new AssetBitmapTexture(this.getTextureManager(), this.getAssets(), "badge.png", TextureOptions.BILINEAR);
        this.mBadgeTextureRegion = TextureRegionFactory.extractFromTexture(this.mBadgeTexture);
        this.mBadgeTexture.load();      
        pOnCreateResourcesCallback.onCreateResourcesFinished();
    }

    @Override
    public void onCreateScene(OnCreateSceneCallback pOnCreateSceneCallback) throws IOException {
        final Scene scene = new Scene();
        scene.getBackground().setColor(Color.BLACK);
        final Sprite badgeSprite = new Sprite(CAMERA_WIDTH/2, CAMERA_HEIGHT/2, mBadgeTextureRegion, this.getVertexBufferObjectManager());
        scene.attachChild(badgeSprite);
        pOnCreateSceneCallback.onCreateSceneFinished(scene);
    }

    @Override
    public void onPopulateScene(Scene pScene, OnPopulateSceneCallback pOnPopulateSceneCallback) throws IOException {
        pOnPopulateSceneCallback.onPopulateSceneFinished();
    }

    @Override
    protected int getLayoutID() {
        return R.layout.activity_first_run;
    }

    @Override
    protected int getRenderSurfaceViewID() {
        return R.id.andengine_rendersurfaceview;
    }
}

布局 /res/layout/activity_first_run.xml ：

<?xml version="1.0" encoding="UTF-8"?>
<ScrollView  xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent">
    <LinearLayout
        android:orientation="vertical"
        android:layout_width="fill_parent" 
        android:layout_height="wrap_content">
        <TextView 
            android:layout_width="fill_parent" 
            android:layout_height="wrap_content"
            android:gravity="center"
            android:textSize="20sp"
            android:text="Layout Example"/>
        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:padding="2px"
            android:background="#FFF"
            android:layout_gravity="center">
            <org.andengine.opengl.view.RenderSurfaceView android:id="@+id/andengine_rendersurfaceview"
                android:layout_width="400px" 
                android:layout_height="400px"
                android:layout_margin="10px" />
        </LinearLayout>
    </LinearLayout>
</ScrollView>

结果：