open a fragment on Button Click throws InflateException?

Question

i am trying to get simple fragment on button click. but i get InflateException and app crashes instantly. found several answers in StackOverflow and no one worked for me. hope anyone can help me out with explanation.

this,this,this

MainActivity.class

    protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main); //Line 16

    button.findViewById(R.id.button1);
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            viewfragment();
        }
    });

}

public void viewfragment()
{
    FragmentManager fragmentManager = getSupportFragmentManager();
    FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
    BlankFragment1 fragment = new BlankFragment1();
    fragmentTransaction.replace(R.id.fragment1, fragment);
    fragmentTransaction.addToBackStack(null);
    fragmentTransaction.commit();
}

activity_main.xml

    <?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 
    .......
    ......
tools:context=".MainActivity">


<fragment
    android:id="@+id/fragment1"
    android:layout_width="match_parent"
    android:layout_height="60dp"
    android:layout_weight="1"
    app:layout_constraintBottom_toBottomOf="parent"
    />

<Button>
    ......
<Button/>

</android.support.constraint.ConstraintLayout>

blank_fragment.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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="#654"
android:id="@+id/thisisfframent"
tools:context=".BlankFragment"
android:orientation="vertical" />

BlankFragment.class

public class BlankFragment1 extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    return inflater.inflate(R.layout.blank_fragment, container, false);
   }
}

Error log

E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.berunda.audio.fragmentact, PID: 28350
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.berunda.audio.fragmentact/com.berunda.audio.fragmentact.MainActivity}: android.view.InflateException: Binary XML file line #10: Binary XML file line #10: Error inflating class fragment
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2638)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2720)
    at android.app.ActivityThread.access$900(ActivityThread.java:196)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1538)
    at android.os.Handler.dispatchMessage(Handler.java:111)
    at android.os.Looper.loop(Looper.java:210)
    at android.app.ActivityThread.main(ActivityThread.java:5982)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:852)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:742)
 Caused by: android.view.InflateException: Binary XML file line #10: Binary XML file line #10: Error inflating class fragment
    at android.view.LayoutInflater.inflate(LayoutInflater.java:561)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:437)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:380)
    at android.support.v7.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:469)
    at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
    at com.berunda.audio.fragmentact.MainActivity.onCreate(MainActivity.java:16)
    at android.app.Activity.performCreate(Activity.java:6444)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1116)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2585)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2720) 
    at android.app.ActivityThread.access$900(ActivityThread.java:196) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1538) 
    at android.os.Handler.dispatchMessage(Handler.java:111) 
    at android.os.Looper.loop(Looper.java:210) 
    at android.app.ActivityThread.main(ActivityThread.java:5982) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:852) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:742) 
 Caused by: android.view.InflateException: Binary XML file line #10: Error inflating class fragment
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:809)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:731)
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:862)
    at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:825)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:537)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:437) 
    at android.view.LayoutInflater.inflate(LayoutInflater.java:380) 
    at android.support.v7.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:469) 
    at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140) 
    at com.berunda.audio.fragmentact.MainActivity.onCreate(MainActivity.java:16) 
    at android.app.Activity.performCreate(Activity.java:6444) 
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1116) 
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2585) 
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2720) 
    at android.app.ActivityThread.access$900(ActivityThread.java:196) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1538) 
    at android.os.Handler.dispatchMessage(Handler.java:111) 
    at android.os.Looper.loop(Looper.java:210) 
    at android.app.ActivityThread.main(ActivityThread.java:5982) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:852) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:742) 
 Caused by: android.app.Fragment$InstantiationException: Unable to instantiate fragment .BlankFragment1: make sure class name exists, is public, and has an empty constructor that is public
    at android.app.Fragment.instantiate(Fragment.java:632)
    at android.app.Fragment.instantiate(Fragment.java:596)
    at android.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2228)
    at android.app.FragmentController.onCreateView(FragmentController.java:98)
    at android.app.Activity.onCreateView(Activity.java:5751)
    at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:389)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:781)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:731) 
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:862) 
    at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:825) 
    at android.view.LayoutInflater.inflate(LayoutInflater.java:537) 
    at android.view.LayoutInflater.inflate(LayoutInflater.java:437) 
    at android.view.LayoutInflater.inflate(LayoutInflater.java:380) 
    at android.support.v7.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:469) 
    at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140) 
    at com.berunda.audio.fragmentact.MainActivity.onCreate(MainActivity.java:16) 
    at android.app.Activity.performCreate(Activity.java:6444) 
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1116) 
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2585) 
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2720) 
    at android.app.ActivityThread.access$900(ActivityThread.java:196) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1538) 
    at android.os.Handler.dispatchMessage(Handler.java:111) 
    at android.os.Looper.loop(Looper.java:210) 
    at android.app.ActivityThread.main(ActivityThread.java:5982) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:852) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:742) 
 Caused by: java.lang.ClassNotFoundException: Didn't find class ".BlankFragment1" on path: DexPathList[[zip file "/data/app/com.berunda.audio.fragmentact-2/base.apk", zip file "/data/app/com.berunda.audio.fragmentact-2/split_lib_dependencies_apk.apk", zip file "/data/app/com.berunda.audio.fragmentact-2/split_lib_slice_0_apk.apk", zip file "/data/app/com.berunda.audio.fragmentact-2/split_lib_slice_1_apk.apk", zip file "/data/app/com.berunda.audio.fragmentact-2/split_lib_slice_2_apk.apk", zip file "/data/app/com.berunda.audio.fragmentact-2/split_lib_slice_3_apk.apk", zip file "/data/app/com.berunda.audio.fragmentact-2/split_lib_slice_4_apk.apk", zip file "/data/app/com.berunda.audio.fragmentact-2/split_lib_slice_5_apk.apk", zip file "/data/app/com.berunda.audio.fragmentact-2/split_lib_slice_6_apk.apk", zip file "/data/app/com.berunda.audio.fragmentact-2/split_lib_slice_7_apk.apk", zip file "/data/app/com.berunda.audio.fragmentact-2/split_lib_slice_8_apk.apk", zip file "/data/app/com.berunda.audio.fragmentact-2/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/data/app/com.berunda.audio.frag

Thanks in advance.

error stacktrace added – Kasun Chamara Dec 28 '18 at 17:40 — Kasun Chamara, Dec 28 '18 at 17:40

Shripad Jadhav · Accepted Answer · 2018-12-28T17:40:53.090

0

If you are adding the fragment at runtime then you need to change your activity_main.xml to following

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 
    .......
    ......
tools:context=".MainActivity">
<FrameLayout 
    android:id="@+id/fragment1"
    android:layout_width="match_parent"
    android:layout_height="60dp"
    android:layout_weight="1"
    app:layout_constraintBottom_toBottomOf="parent"
    />

<Button>
    ......
<Button/>

</android.support.constraint.ConstraintLayout>

edited Dec 28 '18 at 17:40

answered Dec 28 '18 at 17:27

Shripad Jadhav

316
1
8

not the static way.i want programmatically add fragment. as described in developer page [link](https://developer.android.com/guide/components/fragments#java) – Kasun Chamara Dec 28 '18 at 17:39
I have updated the answer, just change your tag to – Shripad Jadhav Dec 28 '18 at 17:41
Yes. it worked..Thanks lot..but there is no indication about FrameLayout on developer page right?..somehow it worked..Thanks again. – Kasun Chamara Dec 29 '18 at 03:06

open a fragment on Button Click throws InflateException?

1 Answers1