我正在Unity 2017.3 Beta 1中开发一个Android应用程序(我们称之为AppName)。我需要一个自定义的"活动"来在启动时运行一些Java代码。我在一个单独的项目中有AppNameActivity
的代码,该项目使用gradle
将"活动"打包到AppName.jar
文件中,然后将其放入Unity的AppName/Assets/Plugins/Android
文件夹中,以及引用它的自定义AndroidManifest.xml
。我使用Unity的构建和运行功能(构建系统:Gradle,Development Build)。
当我在安卓设备上启动该应用程序时,它会立即崩溃。活动类似乎不见了,但仔细观察,它确实在那里。
通过adb logcat
,我可以获得此错误:
V/ActivityThread(24831): Handling launch of ActivityRecord{2609126c token=android.os.BinderProxy@2101f035 {de.companyname.appname.rebuild/de.companyname.appname.rebuild.AppNameActivity}}
D/OpenGLRenderer(23986): Flushing caches (mode 0)
D/OpenGLRenderer(23986): Flushing caches (mode 0)
I/art (24831): Rejecting re-init on previously-failed class java.lang.Class<de.companyname.appname.rebuild.AppNameActivity>
D/AndroidRuntime(24831): Shutting down VM
E/AndroidRuntime(24831): FATAL EXCEPTION: main
E/AndroidRuntime(24831): Process: de.companyname.appname.rebuild, PID: 24831
E/AndroidRuntime(24831): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{de.companyname.appname.rebuild/de.companyname.appname.rebuild.AppNameActivity}: java.lang.ClassNotFoundException: Didn't find class "de.companyname.appname.rebuild.AppNameActivity" on path: DexPathList[[zip file "/data/app/de.companyname.appname.rebuild-2/base.apk"],nativeLibraryDirectories=[/data/app/de.companyname.appname.rebuild-2/lib/arm, /vendor/lib, /system/lib]]
E/AndroidRuntime(24831): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2381)
E/AndroidRuntime(24831): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2532)
E/AndroidRuntime(24831): at android.app.ActivityThread.access$900(ActivityThread.java:169)
E/AndroidRuntime(24831): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1421)
E/AndroidRuntime(24831): at android.os.Handler.dispatchMessage(Handler.java:111)
E/AndroidRuntime(24831): at android.os.Looper.loop(Looper.java:194)
E/AndroidRuntime(24831): at android.app.ActivityThread.main(ActivityThread.java:5562)
E/AndroidRuntime(24831): at java{de.companyname.appname.rebuild/de.companyname.appname.rebuild.AppNameActivity}.lang.reflect.Method.invoke(Native Method)
E/AndroidRuntime(24831): at java.lang.reflect.Method.invoke(Method.java:372)
E/AndroidRuntime(24831): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:968)
E/AndroidRuntime(24831): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:763)
E/AndroidRuntime(24831): Caused by: java.lang.ClassNotFoundException: Didn't find class "de.companyname.appname.rebuild.AppNameActivity" on path: DexPathList[[zip file "/data/app/de.companyname.appname.rebuild-2/base.apk"],nativeLibraryDirectories=[/data/app/de.companyname.appname.rebuild-2/lib/arm, /vendor/lib, /system/lib]]
E/AndroidRuntime(24831): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
E/AndroidRuntime(24831): at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
E/AndroidRuntime(24831): at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
E/AndroidRuntime(24831): at android.app.Instrumentation.newActivity(Instrumentation.java:1070)
E/AndroidRuntime(24831): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2371)
E/AndroidRuntime(24831): ... 10 more
E/AndroidRuntime(24831): Suppressed: java.lang.NoClassDefFoundError: de.companyname.appname.rebuild.AppNameActivity
E/AndroidRuntime(24831): at dalvik.system.DexFile.defineClassNative(Native Method)
E/AndroidRuntime(24831): at dalvik.system.DexFile.defineClass(DexFile.java:226)
E/AndroidRuntime(24831): at dalvik.system.DexFile.loadClassBinaryName(DexFile.java:219)
E/AndroidRuntime(24831): at dalvik.system.DexPathList.findClass(DexPathList.java:321)
E/AndroidRuntime(24831): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:54)
E/AndroidRuntime(24831): ... 14 more
E/AndroidRuntime(24831): Suppressed: java.lang.ClassNotFoundException: de.companyname.appname.rebuild.AppNameActivity
E/AndroidRuntime(24831): at java.lang.Class.classForName(Native Method)
E/AndroidRuntime(24831): at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
E/AndroidRuntime(24831): at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
E/AndroidRuntime(24831): at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
E/AndroidRuntime(24831): ... 13 more
E/AndroidRuntime(24831): Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available
我的AndroidManifest.xml
:的相关部分
<application android:theme="@style/UnityThemeSelector" android:icon="@drawable/app_icon" android:label="@string/app_name" android:isGame="false" android:banner="@drawable/app_banner">
<activity android:label="@string/app_name" android:screenOrientation="fullSensor" android:launchMode="singleTask" android:configChanges="mcc|mnc|locale|touchscreen|keyboard|keyboardHidden|navigation|orientation|screenLayout|uiMode|screenSize|smallestScreenSize|fontScale|layoutDirection" android:name="de.companyname.appname.rebuild.AppNameActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<meta-data android:name="unityplayer.UnityActivity" android:value="true" />
</activity>
(...)
</application>
以下是dexdump
的输出,通过adb shell
在Android设备上执行,参数为/data/app/de.companyname.appname.rebuild-2/base.apk
。
Processing './base.apk'...
Opened './base.apk', DEX version '035'
(...)
Class #69 -
Class descriptor : 'Lde/companyname/appname/rebuild/AppNameActivity;'
Access flags : 0x0001 (PUBLIC)
Superclass : 'Lde/companyname/appname/rebuild/UnityPlayerActivity;'
Interfaces -
Static fields -
#0 : (in Lde/companyname/appname/rebuild/AppNameActivity;)
name : 'ACTION_USB_PERMISSION'
type : 'Ljava/lang/String;'
access : 0x001a (PRIVATE STATIC FINAL)
#1 : (in Lde/companyname/appname/rebuild/AppNameActivity;)
name : 'TAG'
type : 'Ljava/lang/String;'
access : 0x001a (PRIVATE STATIC FINAL)
Instance fields -
#0 : (in Lde/companyname/appname/rebuild/AppNameActivity;)
name : 'mUsbManager'
type : 'Landroid/hardware/usb/UsbManager;'
access : 0x0002 (PRIVATE)
#1 : (in Lde/companyname/appname/rebuild/AppNameActivity;)
name : 'mUsbReceiver'
type : 'Landroid/content/BroadcastReceiver;'
access : 0x0012 (PRIVATE FINAL)
#2 : (in Lde/companyname/appname/rebuild/AppNameActivity;)
name : 'validProductNames'
type : 'Ljava/util/Collection;'
access : 0x0002 (PRIVATE)
Direct methods -
#0 : (in Lde/companyname/appname/rebuild/AppNameActivity;)
name : '<init>'
type : '()V'
access : 0x10001 (PUBLIC CONSTRUCTOR)
code -
registers : 4
ins : 1
outs : 2
insns size : 32 16-bit code units
catches : (none)
positions :
0x0000 line=27
0x0003 line=22
0x000a line=25
0x0018 line=28
0x001f line=29
locals :
0x0000 - 0x0020 reg=3 this Lde/companyname/appname/rebuild/AppNameActivity;
(...)
我还使用工具AndroidSdk/tools/bin/apkanalyzer dex packages ~/src/appname/UnityExport.apk
在我的开发机器上进行了反汇编,结果是:
sh: 0: getcwd() failed: No such file or directory
P d 465 944 66105 <TOTAL>
P d 420 454 49362 com
(...)
C d 8 10 1067 de.companyname.appname.rebuild.AppNameActivity
M d 1 1 119 de.companyname.appname.rebuild.AppNameActivity <init>()
(...)
所以我很确定de.companyname.appname.rebuild.AppNameActivity
类存在于设备上。
更新:我担心在错误日志{de.companyname.appname.rebuild/de.companyname.appname.rebuild.AppNameActivity}
中连续两次提到包,所以我将清单中的值从android:name="de.companyname.appname.rebuild.AppNameActivity"
更改为android:name=".AppNameActivity"
。尽管如此,我还是得到了完全相同的错误消息。
我找到了自己问题的解决方案:我缺少一个超类。
当我尝试制作发布版本时(以前,我总是尝试 调试版本 事实上,我在绑定 我重新构建了 有一段时间,我仍然不确定这整件事,因为我看了Warning: de.companyname.appname.rebuild.AppNameActivity: can't find superclass or interface de.companyname.appname.rebuild.UnityPlayerActivity
AppName.jar
时犯了一个错误,导致超类丢失。我仍然对AndroidRuntime中只提到AppNameActivity
的不具体的运行时错误感到惊讶。jar
和发布版本,现在这个错误已经修复,加载了AppNameActivity
并执行了它的构造函数(然后在执行过程中由于一些超出范围的其他问题而崩溃)。dexdump
的旧输出(我在问题中部分引用了它),它证实了UnityPlayerActivity
的存在。经过仔细检查,我注意到com.unity3d.player.UnityPlayerActivity
被包括在内,但实际的超类是de.companyname.appname.rebuild.UnityPlayerActivity