I have two classes that are covered by fragment.
The startActivity () method returns an error.
When my button named btn in my home.java class is clicked. I want to click on my button named btnctwo in my class named hometwo.java.
but i get an error.
logcat
.sahnartsappone.sahnartsapp.hometwo}; have you declared this activity in your AndroidManifest.xml?
Do I need to add my hometwo.java class to my AndroidManifest file as in the sample code below?
<activity
android:name=".hometwo"
android:screenOrientation="portrait" />
I added my hometwo.java class to my AndroidManifest file as in the code example I mentioned above. But I got an error.
Why do I need to add my hometwo.java class to my AndroidManifest file?
home.java
public class home extends Fragment {
Button btn;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.home, container, false);
tn = rootView.findViewById(R.id.btnc);
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(getActivity(), hometwo.class);
intent.putExtra("Indicator", true);
startActivity(intent);
}
});
return rootView;
}
}
hometwo.java
public class hometwo extends Fragment {
Button btnctwo;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.home, container, false);
btnctwo = rootView.findViewById(R.id.btnctwo);
Bundle b = getActivity().getIntent().getExtras();
if (b != null) {
if (b.containsKey("Indicator"))
btnctwo.performClick();
}
btnctwo.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.e("testler","testlertwo");
}
});
return rootView;
}
}
logcat
2020-05-17 16:21:10.944 9826-9826/com.sahnartsappone.sahnartsapp E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.sahnartsappone.sahnartsapp, PID: 9826
android.content.ActivityNotFoundException: Unable to find explicit activity class {com.sahnartsappone.sahnartsapp/com.sahnartsappone.sahnartsapp.hometwo}; have you declared this activity in your AndroidManifest.xml?
at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:2049)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1709)
at android.app.Activity.startActivityForResult(Activity.java:5192)
at androidx.fragment.app.FragmentActivity.startActivityForResult(FragmentActivity.java:676)
at androidx.core.app.ActivityCompat.startActivityForResult(ActivityCompat.java:234)
at androidx.fragment.app.FragmentActivity.startActivityFromFragment(FragmentActivity.java:791)
at androidx.fragment.app.FragmentActivity$HostCallbacks.onStartActivityFromFragment(FragmentActivity.java:933)
at androidx.fragment.app.Fragment.startActivity(Fragment.java:1185)
at androidx.fragment.app.Fragment.startActivity(Fragment.java:1173)
at com.sahnartsappone.sahnartsapp.home$1.onClick(home.java:29)
at android.view.View.performClick(View.java:7125)
at android.view.View.performClickInternal(View.java:7102)
at android.view.View.access$3500(View.java:801)
at android.view.View$PerformClick.run(View.java:27336)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7356)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
there is no answer to this question.
that's not how you start a fragment. you're trying to start a fragment as an activity, which it isn't @a_local_nobody
The startActicity () method does not work in a class extended by fragment.
Intent intent = new Intent(getActivity(), hometwo.class);
intent.putExtra("Indicator", true);
startActivity(intent);
Thanks @a_local_nobody
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