小编Kod*_*nRy的帖子

基本上我一直在使用libgdx开发游戏,最近我开始尝试添加Google Play游戏服务,所以我尝试了它,似乎我已经完全搞砸了我的.xml文件,我试过看了诸如如何解决此Java类未找到异常等问题？和NoClassDefFoundError - Eclipse和Android,但无济于事.

这是我收到的运行时错误.

02-19 19:25:17.772: E/AndroidRuntime(25746): FATAL EXCEPTION: main
02-19 19:25:17.772: E/AndroidRuntime(25746): Process: com.coppercow.minerman, PID: 25746
02-19 19:25:17.772: E/AndroidRuntime(25746): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.coppercow.minerman/com.coppercow.minerman.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.coppercow.minerman.MainActivity" on path: DexPathList[[zip file "/data/app/com.coppercow.minerman-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.coppercow.minerman-2, /vendor/lib, /system/lib]]

类名是MainActivity.Java,它位于src文件中.我知道这是因为以下两件事之一:我的.class文件或.xml文件.所以这里也是我的.xml文件,以防万一我做错了,实际上并没有在任何.class文件中.

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.coppercow.minerman"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="5" android:targetSdkVersion="19" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name"
            android:screenOrientation="portrait"
            android:configChanges="keyboard|keyboardHidden|orientation|screenSize">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" /> …

好吧所以我真的很困惑我之前已经旋转了精灵并且没有任何问题,例如当船在海洋中移动时旋转船,但由于某种原因,这次我有一个非常大的问题.所以我在资源文件中创建一个纹理,但不是静态纹理.我使用以下内容加载纹理:

class Assets{
    Texture img;
    public Assets(){
        img = new Texture(Gdx.files.internal("images/PNG.png")

然后我通过调用以下方法调用主类中的资产:

Assets assets = new Assets()

然后我有一个专门为这个主角设计的动画师,因为他的动画与其他角色有很大不同.

class Animations{
    Guy MYGUY;
    Texture firstTexture;
    ArrayList<Texture> running;
    Sprite CurrentSprite;
    public Animations(Texture standingStill, Guy myGuy){
        MYGUY = myGuy;
        firstTexture = standingStill;
        running = new ArrayList<Texture>();
        running.add(firstTexture);
        CurrentSprite = new Sprite(firstTexture);

    public void update (int direction, int state){
         CurrentSprite.setPosition(MYGUY.X, MYGUY.Y)
        // I have a switch here, but it does nothing yet because I haven't added in different actions for the character.
        //However I …