如果minifyEnabled
是false
,则一切正常。但是在将我的minifyEnabled
更改为true
运行时异常后,发生了以下情况:
java.lang.RuntimeException: Unable to start activity ComponentInfo{.ui.main.MainActivity}: java.lang.RuntimeException: Cannot create an instance of class .ui.main.MainViewModel
我的
MainActivity
类扩展了AppCompatActivity
,并实现了LifecycleRegistryOwner
,然后声明: private val lifecycleRegistry: LifecycleRegistry by lazy { LifecycleRegistry(this) }
private val viewModel: MainViewModel by lazy { ViewModelProviders.of(this).get(MainViewModel::class.java) }
override fun getLifecycle(): LifecycleRegistry = lifecycleRegistry
// and other simple stuff
我应该在保护规则文件中放入一些内容吗?
完整的异常日志:
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.appchamp.wordchunks, PID: 32558
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.appchamp.wordchunks/com.appchamp.wordchunks.ui.main.MainActivity}: java.lang.RuntimeException: Cannot create an instance of class com.appchamp.wordchunks.ui.main.MainViewModel
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3253)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3349)
at android.app.ActivityThread.access$1100(ActivityThread.java:221)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:158)
at android.app.ActivityThread.main(ActivityThread.java:7224)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
Caused by: java.lang.RuntimeException: Cannot create an instance of class com.appchamp.wordchunks.ui.main.MainViewModel
at android.arch.lifecycle.ViewModelProviders$DefaultFactory.create(Unknown Source)
at android.arch.lifecycle.ViewModelProvider.get(Unknown Source)
at android.arch.lifecycle.ViewModelProvider.get(Unknown Source)
at com.appchamp.wordchunks.ui.main.l.a(Unknown Source)
at a.e.a(Unknown Source)
at com.appchamp.wordchunks.ui.main.MainActivity.c(Unknown Source)
at com.appchamp.wordchunks.ui.main.MainActivity.onStart(Unknown Source)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1265)
at android.app.Activity.performStart(Activity.java:6915)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3216)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3349)
at android.app.ActivityThread.access$1100(ActivityThread.java:221)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:158)
at android.app.ActivityThread.main(ActivityThread.java:7224)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.newInstance(Native Method)
at android.arch.lifecycle.ViewModelProviders$DefaultFactory.create(Unknown Source)
at android.arch.lifecycle.ViewModelProvider.get(Unknown Source)
at android.arch.lifecycle.ViewModelProvider.get(Unknown Source)
at com.appchamp.wordchunks.ui.main.l.a(Unknown Source)
at a.e.a(Unknown Source)
at com.appchamp.wordchunks.ui.main.MainActivity.c(Unknown Source)
at com.appchamp.wordchunks.ui.main.MainActivity.onStart(Unknown Source)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1265)
at android.app.Activity.performStart(Activity.java:6915)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3216)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3349)
at android.app.ActivityThread.access$1100(ActivityThread.java:221)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:158)
at android.app.ActivityThread.main(ActivityThread.java:7224)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
Caused by: java.lang.AssertionError: impossible
at java.lang.Enum$1.create(Enum.java:45)
at java.lang.Enum$1.create(Enum.java:35)
at libcore.util.BasicLruCache.get(BasicLruCache.java:54)
at java.lang.Enum.getSharedConstants(Enum.java:211)
at java.util.EnumMap.initialization(EnumMap.java:738)
at java.util.EnumMap.<init>(EnumMap.java:391)
at io.realm.ad.<init>(Unknown Source)
at io.realm.ad.a(Unknown Source)
at io.realm.ad.a(Unknown Source)
at io.realm.aa.l(Unknown Source)
at com.appchamp.wordchunks.ui.main.MainViewModel.<init>(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Native Method)
at android.arch.lifecycle.ViewModelProviders$DefaultFactory.create(Unknown Source)
at android.arch.lifecycle.ViewModelProvider.get(Unknown Source)
at android.arch.lifecycle.ViewModelProvider.get(Unknown Source)
at com.appchamp.wordchunks.ui.main.l.a(Unknown Source)
at a.e.a(Unknown Source)
at com.appchamp.wordchunks.ui.main.MainActivity.c(Unknown Source)
at com.appchamp.wordchunks.ui.main.MainActivity.onStart(Unknown Source)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1265)
at android.app.Activity.performStart(Activity.java:6915)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3216)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3349)
at android.app.ActivityThread.access$1100(ActivityThread.java:221)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:158)
at android.app.ActivityThread.main(ActivityThread.java:7224)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
Caused by: java.lang.NoSuchMethodException: values []
at java.lang.Class.getMethod(Class.java:630)
at java.lang.Class.getDeclaredMethod(Class.java:589)
at java.lang.Enum$1.create(Enum.java:41)
at java.lang.Enum$1.create(Enum.java:35)
at libcore.util.BasicLruCache.get(BasicLruCache.java:54)
at java.lang.Enum.getSharedConstants(Enum.java:211)
at java.util.EnumMap.initialization(EnumMap.java:738)
at java.util.EnumMap.<init>(EnumMap.java:391)
at io.realm.ad.<init>(Unknown Source)
at io.realm.ad.a(Unknown Source)
at io.realm.ad.a(Unknown Source)
at io.realm.aa.l(Unknown Source)
at com.appchamp.wordchunks.ui.main.MainViewModel.<init>(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Native Method)
at android.arch.lifecycle.ViewModelProviders$DefaultFactory.create(Unknown Source)
at android.arch.lifecycle.ViewModelProvider.get(Unknown Source)
at android.arch.lifecycle.ViewModelProvider.get(Unknown Source)
at com.appchamp.wordchunks.ui.main.l.a(Unknown Source)
at a.e.a(Unknown Source)
at com.appchamp.wordchunks.ui.main.MainActivity.c(Unknown Source)
at com.appchamp.wordchunks.ui.main.MainActivity.onStart(Unknown Source)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1265)
at android.app.Activity.performStart(Activity.java:6915)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3216)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3349)
at android.app.ActivityThread.access$1100(ActivityThread.java:221)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:158)
at android.app.ActivityThread.main(ActivityThread.java:7224)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120) end
最佳答案
当您将minifyEnabled设置为true时,proguard会收缩,混淆模型类,而Activity无法识别它,请在pro guard-rules.pro中添加以下内容
-keep class com.appchamp.wordchunks.ui.main.MainViewModel;