原因：Android.View.InflateException

Question

我正试图打开我的应用程序，但这是一个错误的膨胀

日志：

E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.pokedex, PID: 10007
java.lang.RuntimeException: Unable to start activity 
ComponentInfo{com.example.pokedex/com.example.pokedex.ui.main.MainActivity}: 
android.view.InflateException: Binary XML file line #14 in com.example.pokedex:layout/main_activity: 
Binary XML file line #14 in com.example.pokedex:layout/main_activity: Error inflating class 
androidx.fragment.app.FragmentContainerView
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3449)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601)
    at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
    at 
android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066)
    at android.os.Handler.dispatchMessage(Handler.java:106)
    at android.os.Looper.loop(Looper.java:223)
    at android.app.ActivityThread.main(ActivityThread.java:7656)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
 Caused by: android.view.InflateException: Binary XML file line #14 in 
com.example.pokedex:layout/main_activity: Binary XML file line #14 in 
com.example.pokedex:layout/main_activity: Error inflating class 
androidx.fragment.app.FragmentContainerView
 Caused by: android.view.InflateException: Binary XML file line #14 in 
com.example.pokedex:layout/main_activity: Error inflating class 
androidx.fragment.app.FragmentContainerView
 Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void 
android.widget.TextView.setOnClickListener(android.view.View$OnClickListener)' on a null object 
reference
    at com.example.pokedex.ui.entrada.EntradaFragment.onCreate(EntradaFragment.kt:31)
    at androidx.fragment.app.Fragment.performCreate(Fragment.java:2936)
    at androidx.fragment.app.FragmentStateManager.create(FragmentStateManager.java:472)
    at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:278)
    at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:2177)
    at 
androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:2094)
    at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManager.java:1990)
    at androidx.fragment.app.FragmentManager.dispatchStateChange(FragmentManager.java:3122)
    at androidx.fragment.app.FragmentManager.dispatchCreate(FragmentManager.java:3045)
    at androidx.fragment.app.Fragment.onCreate(Fragment.java:1867)
    at androidx.navigation.fragment.NavHostFragment.onCreate(NavHostFragment.java:264)
    at androidx.fragment.app.Fragment.performCreate(Fragment.java:2936)
    at androidx.fragment.app.FragmentStateManager.create(FragmentStateManager.java:472)
    at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:278)
    at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:2177)
    at 
androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:2094)
    at androidx.fragment.app.FragmentManager.execSingleAction(FragmentManager.java:1959)
    at androidx.fragment.app.BackStackRecord.commitNowAllowingStateLoss(BackStackRecord.java:311)
    at androidx.fragment.app.FragmentContainerView.<init>(FragmentContainerView.java:176)
    at 
  androidx.fragment.app.FragmentLayoutInflaterFactory.onCreateView
(FragmentLayoutInflaterFactory.java:52)
    at androidx.fragment.app.FragmentController.onCreateView(FragmentController.java:135)
    at 
androidx.fragment.app.FragmentActivity.dispatchFragmentsOnCreateView(FragmentActivity.java:313)
    at androidx.fragment.app.FragmentActivity.onCreateView(FragmentActivity.java:292)
    at android.view.LayoutInflater.tryCreateView(LayoutInflater.java:1067)
E/AndroidRuntime:     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:995)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:959)
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:1121)
    at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082)
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:1124)
    at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:680)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:532)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:479)
    at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:696)
    at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:170)
    at com.example.pokedex.ui.main.MainActivity.onCreate(MainActivity.kt:41)
    at android.app.Activity.performCreate(Activity.java:8000)
    at android.app.Activity.performCreate(Activity.java:7984)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1309)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3422)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601)
    at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
    at 
android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066)
    at android.os.Handler.dispatchMessage(Handler.java:106)
    at android.os.Looper.loop(Looper.java:223)
    at android.app.ActivityThread.main(ActivityThread.java:7656)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)

它拉出错误的片段行：

 reg_novo_user.setOnClickListener {
        val intent = Intent(activity, RegistroActivity::class.java)
        startActivity(intent)
    }

这段代码在一个条目片段中，我正在使用firebase实现一个登录

就在我的startActivity下面，我有一个“finish（）”，但由于我在一个片段中，我必须删除它，我不知道如果没有这个方法，问题是否会出现

Answer 1

看起来RegistroActivity正在尝试初始化一个片段，但失败了。

原因：java.lang.NullPointerException：尝试对空对象调用虚拟方法“void android.widget.textview.SetonClickListener（android.view.view$OnClickListener

此错误消息行表示您试图在尚未初始化的textview上设置侦听器。尝试在onViewCreated方法中初始化侦听器。

应该管用