我在 Android Studio 上使用 Kudan SDK v.1.4 包：eu.kudan.ar
该项目构建没有错误，但是当我运行该应用程序时，出现此错误：
12-29 16:17:33.669 22875-22875/? 我/艺术：后期启用 -Xcheck:jni 12-29 16:17:33.689 22875-22889/? E/art：写入握手字节失败（-1 of 14）：Broken pipe 12-29 16:17:33.689 22875-22889/? 我/艺术：调试器不再活动 12-29 16:17:33.709 22875-22875/？W/ResourcesManager：在 getResources()--------------config= {1.0 ?mcc?mnc it_IT ldltr sw800dp w1280dp h726dp 240dpi xlrg land finger -keyb/v/h -nav/h suim 之前:1 s.6} 12-29 16:17:33.719 22875-22875/? I/InstantRun：Instant Run Runtime 已启动。Android包是eu.kudan.ar，真正的应用类是null。12-29 16:17:33.729 22875-22875/? W/art：未能找到 DexFile /data/data/eu.kudan.ar/files/instant-run/dex/slice-slice_9-classes.dex 的 OatDexFile（规范路径 /data/data/eu.kudan.ar/文件/即时运行/dex/slice-slice_9-classes。dex）在 OatFile /data/data/eu.kudan.ar/cache/slice-slice_9-classes.dex 12-29 16:17:33.909 22875-22875/ 中具有校验和 0x47fac275？I/CachedDir：文件已更改，重新填充缓存 - 1357 12-29 16:17:33.919 22875-22875/？带链接器：libKudan.so：未使用的 DT 条目：类型 0x6ffffffe arg 0x66c50 12-29 16:17:33.919 22875-22875/？带链接器：libKudan.so：未使用的 DT 条目：类型 0x6fffffff arg 0x3 12-29 16:17:33.949 22875-22875/？我/kudan-ndk：您的 API 密钥有效。12-29 16:17:34.099 22875-22875/? I/ARFragment: onResume 12-29 16:17:34.159 22875-22875/? I/View: ssignParent(ViewParent parent) 父是: android.view.ViewRootImpl@2d5754ef 12-29 16:17:34.179 22875-22925/? I/OpenGLRenderer：初始化 EGL，版本 1.4 12-29 16:17:34.189 22875-22875/? I/KudanAR：屏幕：1920x1128 12-29 16:17:34.499 22875-22875/? I/HwCust：为类 android.media.HwCustMediaPlayerImpl 找到构造函数 12-29 16:17:34.509 22875-22875/？E/MediaPlayer：应该已经设置了字幕控制器 12-29 16:17:34.519 22875-22875/？W/System.err: java.io.FileNotFoundException: 该文件不能作为文件描述符打开；它可能被压缩 12-29 16:17:34.519 22875-22875/? W/System.err：在 android.content.res.AssetManager.openAssetFd（本机方法） ... java.lang.reflect.Method.invoke(Method.java:372) 12-29 16:17:34.519 22875-22875/? W/System.err：在 com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:964) 12-29 16:17:34.519 22875-22875/？W/System.err：在 com.android.internal.os.ZygoteInit.main(ZygoteInit.java:759) 12-29 16:17:34.529 22875-22875/？E/AndroidRuntime：致命异常：主进程：eu.kudan.ar，PID：22875 java.lang.NullPointerException：尝试调用虚拟方法 'eu.kudan.kudan.ARWorld eu.kudan.kudan.ARImageTrackable.getWorld()'在空对象引用上 在 eu.kudan.ar.MainActivity.setup(MainActivity.java:56) 在 eu.kudan.kudan.ARView.setup(ARView.java:104) 在 eu.kudan.kudan.ARView.onSizeChanged(ARView.java:306 ) 在 android.view.View.sizeChange(View.java:15848) 在 android.view.View.setFrame(View.java:15813) 在 android.view.SurfaceView.setFrame(SurfaceView.java:316) 在 android.view .View.layout(View.java:15729) 在 ....
资产导入良好。问题是 ：
trackableSet.loadFromAsset("demo.KARMarker");
这是我的活动：
public class MainActivity extends ARActivity implements ARImageTrackableListener {
public void onCreate(Bundle savedInstanceState) {
// set api key for this package name.
ARAPIKey key = ARAPIKey.getInstance();
key.setAPIKey("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");
super.onCreate(savedInstanceState);
}
public void setup() {
// create a trackable from a bundled image.
ARImageTrackable wavesTrackable = new ARImageTrackable("waves");
wavesTrackable.loadFromAsset("waves.png");
// create video texture.
ARVideoTexture videoTexture = new ARVideoTexture();
videoTexture.loadFromAsset("waves.mp4");
ARVideoNode videoNode = new ARVideoNode(videoTexture);
// add video to the waves trackable.
wavesTrackable.getWorld().addChild(videoNode);
// load a set of trackables from a bundled file.
ARTrackableSet trackableSet = new ARTrackableSet();
trackableSet.loadFromAsset("demo.KARMarker");
ARImageTracker tracker = ARImageTracker.getInstance();
// add our trackables to the tracker.
tracker.addTrackableSet(trackableSet);
tracker.addTrackable(wavesTrackable);
// create an image node.
ARImageTrackable legoTrackable = tracker.findTrackable("lego");
ARImageNode imageNode = new ARImageNode("BatmanLegoMovie.png");
// make it smaller.
imageNode.scaleBy(0.5f, 0.5f, 0.5f);
// add it to the lego trackable.
legoTrackable.getWorld().addChild(imageNode);
}
@Override
public void didDetect(ARImageTrackable trackable) {
Log.i("KudanSamples", "detected " + trackable.getName());
}
@Override
public void didTrack(ARImageTrackable trackable) {
Log.i("KudanSamples", "tracked");
}
@Override
public void didLose(ARImageTrackable trackable) {
Log.i("KudanSamples", "lost " + trackable.getName());
}
}
解决了
我将资产移动到 /sdcard/marker/asset/ 而不是
trackableSet.loadFromAsset("demo.KARMarker");
我使用的方法：
trackableSet.loadFromPath("sdcard/marker/demo.KARMarker");
也许可使用：
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