I have a program that will show some data to a fragment with a recyclerview and using json file for the data, i have tried this before and it's working properly, but when i use a bottom navigation, i meet this exception
java.lang.RuntimeException: Unable to start activity ComponentInfo{smktelkom.student.profil/smktelkom.student.profil.MainActivity}: android.view.InflateException: Binary XML file line #10: Error inflating class fragment
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2325)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
at android.app.ActivityThread.access$800(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:700)
Caused by: android.view.InflateException: Binary XML file line #10: Error inflating class fragment
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:763)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
at smktelkom.student.profil.MainActivity.onCreate(MainActivity.kt:13)
at android.app.Activity.performCreate(Activity.java:5990)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
at android.app.ActivityThread.access$800(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:700)
Caused by: java.lang.RuntimeException: Exception inflating smktelkom.student.profil:navigation/navigasinya line 41
at androidx.navigation.NavInflater.inflate(NavInflater.java:131)
at androidx.navigation.NavController.setGraph(NavController.java:419)
at androidx.navigation.fragment.NavHostFragment.onCreate(NavHostFragment.java:221)
at android.support.v4.app.Fragment.performCreate(Fragment.java:2331)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1386)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1659)
at android.support.v4.app.FragmentManagerImpl.addFragment(FragmentManager.java:1905)
at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:3715)
at android.support.v4.app.FragmentController.onCreateView(FragmentController.java:114)
at android.support.v4.app.FragmentActivity.dispatchFragmentsOnCreateView(FragmentActivity.java:374)
at android.support.v4.app.BaseFragmentActivityApi14.onCreateView(BaseFragmentActivityApi14.java:39)
at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:68)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:733)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
at smktelkom.student.profil.MainActivity.onCreate(MainActivity.kt:13)
at android.app.Activity.performCreate(Activity.java:5990)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
at android.app.ActivityThread.access$800(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:700)
Caused by: java.lang.IllegalArgumentException: smktelkom.student.profil.More.MoreFragment must be a subclass of class android.support.v4.app.Fragment
at androidx.navigation.NavDestination.parseClassFromName(NavDestination.java:111)
at androidx.navigation.fragment.FragmentNavigator$Destination.onInflate(FragmentNavigator.java:310)
at androidx.navigation.NavInflater.inflate(NavInflater.java:143)
at androidx.navigation.NavInflater.inflate(NavInflater.java:172)
at androidx.navigation.NavInflater.inflate(NavInflater.java:122)
at androidx.navigation.NavController.setGraph(NavController.java:419)
at androidx.navigation.fragment.NavHostFragment.onCreate(NavHostFragment.java:221)
at android.support.v4.app.Fragment.performCreate(Fragment.java:2331)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1386)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1659)
at android.support.v4.app.FragmentManagerImpl.addFragment(FragmentManager.java:1905)
at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:3715)
at android.support.v4.app.FragmentController.onCreateView(FragmentController.java:114)
at android.support.v4.app.FragmentActivity.dispatchFragmentsOnCreateView(FragmentActivity.java:374)
at android.support.v4.app.BaseFragmentActivityApi14.onCreateView(BaseFragmentActivityApi14.java:39)
at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:68)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:733)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
at smktelkom.student.profil.MainActivity.onCreate(MainActivity.kt:13)
at android.app.Activity.performCreate(Activity.java:5990)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
at android.app.ActivityThread.access$800(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:700)
and this is my class file and navigation file in case you need it
package smktelkom.student.profil
import android.os.Bundle
import android.support.v7.app.AppCompatActivity
import androidx.navigation.Navigation
import androidx.navigation.ui.NavigationUI.onNavDestinationSelected
import kotlinx.android.synthetic.main.activity_main.*
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
// navigation_bottom.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener)
navigation_bottom.setOnNavigationItemSelectedListener { item ->
onNavDestinationSelected(item, Navigation.findNavController(this, R.id.my_nav_host_fragment))
}
}
}
yeah this MainActivity is just this nothing else and the exception is linking to this class and i can't find the problem
this is the navigation file
<?xml version="1.0" encoding="utf-8"?>
<navigation xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/navigasinya"
app:startDestination="@id/navigation_profil">
<fragment
android:id="@+id/navigation_profil"
android:name="smktelkom.student.profil.Profil.ProfilFragment"
android:label="@string/title_profil"
tools:layout="@layout/fragment_profil">
<action
android:id="@+id/action_navigation_profil_to_main2Activity"
app:destination="@id/main2Activity"
app:enterAnim="@anim/nav_default_pop_enter_anim"
app:exitAnim="@anim/nav_default_exit_anim"
app:popEnterAnim="@anim/nav_default_pop_enter_anim"
app:popExitAnim="@anim/nav_default_pop_exit_anim" />
</fragment>
<fragment
android:id="@+id/navigation_hobi"
android:name="smktelkom.student.profil.Hobi.HobiFragment"
android:label="@string/title_hobi"
tools:layout="@layout/fragment_hobi">
<action
android:id="@+id/action_navigation_hobi_to_main3Activity"
app:destination="@id/main3Activity"
app:enterAnim="@anim/nav_default_pop_enter_anim" />
</fragment>
<fragment
android:id="@+id/navigation_makanan"
android:name="smktelkom.student.profil.Makanan.MakananFragment"
android:label="@string/title_makanan"
tools:layout="@layout/fragment_makanan">
<action
android:id="@+id/action_navigation_makanan_to_main4Activity"
app:destination="@id/main4Activity"
app:enterAnim="@anim/nav_default_pop_enter_anim" />
</fragment>
<fragment
android:id="@+id/navigation_more"
android:name="smktelkom.student.profil.More.MoreFragment"
android:label="@string/title_more"
tools:layout="@layout/fragment_more">
<action
android:id="@+id/action_navigation_more_to_main5Activity"
app:destination="@id/main5Activity"
app:enterAnim="@anim/nav_default_pop_enter_anim" />
</fragment>
<activity
android:id="@+id/main2Activity"
android:name="smktelkom.student.profil.Main2Activity"
android:label="activity_main2"
tools:layout="@layout/activity_main2" />
<activity
android:id="@+id/main5Activity"
android:name="smktelkom.student.profil.Main5Activity"
android:label="activity_main5"
tools:layout="@layout/activity_main5" />
<activity
android:id="@+id/main3Activity"
android:name="smktelkom.student.profil.Main3Activity"
android:label="activity_main3"
tools:layout="@layout/activity_main3" />
<activity
android:id="@+id/main4Activity"
android:name="smktelkom.student.profil.Main4Activity"
android:label="activity_main4"
tools:layout="@layout/activity_main4" />
</navigation>
i have searching another problem that's same like me and their answer is to put the android:name below the id and i've already tried it and still nothing fixed
this is my fragment class
package smktelkom.student.profil.More
import android.annotation.TargetApi
import android.app.Fragment
import android.os.Build
import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import android.support.v7.widget.LinearLayoutManager
import android.util.Log
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import kotlinx.android.synthetic.main.activity_main.*
import kotlinx.android.synthetic.main.fragment_more.*
import org.json.JSONArray
import org.json.JSONObject
import smktelkom.student.profil.News
import smktelkom.student.profil.NewsAdapter
import smktelkom.student.profil.R
import java.io.InputStream
class MoreFragment : Fragment() {
private val TAG : String = "News"
private lateinit var linearLayoutManager:LinearLayoutManager
private lateinit var mAdapter: NewsAdapter
@TargetApi(Build.VERSION_CODES.M)
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?): View? {
// Inflate the layout for this fragment
val view = inflater.inflate(R.layout.fragment_more, container, false)
recyclerView.layoutManager = LinearLayoutManager(context)
val jsonString:String = readJsonFromKotlinFile()
val newsList : ArrayList<News> = parseJsonStringToNewsList(jsonString)
mAdapter = NewsAdapter(newsList)
recyclerView.adapter = mAdapter
return view
}
private fun parseJsonStringToNewsList(jsonString: String): ArrayList<News> {
val newsList :ArrayList<News> = ArrayList<News>(0)
val newsArray = JSONArray(jsonString)
var i = 0
var numIterations = newsArray.length()
while(i < numIterations){
val newsObject:JSONObject = newsArray.getJSONObject(i)
val news = News()
news.news_title = newsObject.getString("news_title")
news.news_image_url = newsObject.getString("news_image_url")
news.news_source = newsObject.getString("news_source")
news.news_detail = newsObject.getString("news_detail")
news.news_url = newsObject.getString("news_url")
news.id = newsObject.getInt("id")
newsList.add(news)
i++
}
return newsList
}
private fun readJsonFromKotlinFile(): String {
var inputString = ""
try {
val inputStream:InputStream = activity.assets.open("news_data_file.json")
inputString = inputStream.bufferedReader().use{it.readText()}
Log.d(TAG,inputString)
} catch (e:Exception){
Log.d(TAG, e.toString())
}
return inputString
}
}
well, i think there's no problem with this class because the exception didn't mention it. Just in case you need it
and this is my fragment XML file
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/colorKuning"
tools:context="smktelkom.student.profil.More.MoreFragment">
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical"/>
</android.support.constraint.ConstraintLayout>
I've tried to search this problem but there's no question like my problem is. I hope everyone can help me.
Thank You
