How to open new Activity from a fragment java file by clicking the button on the fragment xml file?

Question

I need to open a new activity by clicking the button on the fragment xml file .

I have coded a bit in my fragment java file to call the new activity by clicking the button on my fragment xml file

When i run the app, it crashes

The error am getting is in the fragment java file in the line

"public void electronics(View view)"

08-02 10:58:55.654 3519-3519/com.example.mohammadzakriya.tabhost E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.mohammadzakriya.tabhost, PID: 3519
    java.lang.IllegalStateException: Could not find method electronics(View) in a parent or ancestor Context for android:onClick attribute defined on view class android.support.v7.widget.AppCompatButton with id 'button2'
    at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.resolveMethod(AppCompatViewInflater.java:327)
    at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:284)
    at android.view.View.performClick(View.java:5198)
    at android.view.View$PerformClick.run(View.java:21147)
    at android.os.Handler.handleCallback(Handler.java:739)
    at android.os.Handler.dispatchMessage(Handler.java:95)
    at android.os.Looper.loop(Looper.java:148)
    at android.app.ActivityThread.main(ActivityThread.java:5417)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

XML

<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:orientation="vertical"
    tools:context=".FolderScale">

    <TextView
        android:id="@+id/textView4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:text="1"
        android:textAlignment="center" />

    <Button
        android:id="@+id/button2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:text="Electronics"
        android:onClick="electronics"/>

</LinearLayout>

Java

public class TopfreeFragment extends Fragment {

    public TopfreeFragment() {
        // Required empty public constructor
    }

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

    public void electronics(View view) {
        Intent intent = new Intent(getActivity(),Electronicspage.class);
        startActivity(intent);
    }
}

`Electronicspage`... Is in declared in the Manifest? Your code looks fine — OneCricketeer, Aug 02 '16 at 05:09
ya i have declared Electronicspage in my Manifest file ....k wait i ll put my error log hope this can help out for understanding it better — Mohammad Zakriya, Aug 02 '16 at 05:27
possible duplicate of [How to handle button clicks using the XML onClick within Fragments](http://stackoverflow.com/questions/6091194/how-to-handle-button-clicks-using-the-xml-onclick-within-fragments?rq=1) — V-rund Puro-hit, Aug 02 '16 at 05:39
can u say me how to do it with reference to my code @vrund purohit — Mohammad Zakriya, Aug 02 '16 at 05:48
Thanks @ vrund purohit the link mentioned by u helped to get my project execute below i have answered it with making some corrections according to my code — Mohammad Zakriya, Aug 02 '16 at 06:18

score 2 · Answer 1 · edited Aug 02 '16 at 05:06

2

You are using electronics inside onClick and in method it is electronic not electronics

Use electronics instead of electronic

edited Aug 02 '16 at 05:06

OneCricketeer

179,855
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answered Aug 02 '16 at 04:52

Aditi

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score 1 · Answer 2 · edited May 23 '17 at 12:33

Finally got the solution for the answer with some eidt's according to my code

thanks @ vrund purohit for the link How to handle button clicks using the XML onClick within Fragments .

It helped me to understand finally the code is below

// Fragment java file updated

public class TopfreeFragment extends Fragment implements View.OnClickListener {

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {

        View v = inflater.inflate(R.layout.fragment_topfree, container, false);

        Button b = (Button) v.findViewById(R.id.button2);
        b.setOnClickListener(this);
        return v;
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.button2:
                Intent intent = new Intent(getActivity(),Electronicspage.class);
                startActivity(intent);
                break;
        }
    }
}

score 0 · Accepted Answer · edited May 23 '17 at 12:08

Here is another way you can use to handle click event from button:

public class TopfreeFragment extends Fragment implements View.OnClickListener{

    View view;
    private Button btn;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
        view = inflater.inflate(R.layout.fragment_topfree, container, false);
        btn = (Button) view.findViewById(R.id.button2);
        btn.setOnClickListener(this);
        return view;
    }

    public void onClick(View view) {
        switch(view.getId()) {
            case R.id.button2:
                 startActivity(new Intent(getActivity(),Electronicspage.class));
            break;

            case R.id.XXXXX:
            break;
            // more button......

        }
    }
}

This article will really helpful for you: Android: how to handle button click

How to open new Activity from a fragment java file by clicking the button on the fragment xml file?

3 Answers3