I am trying to inflate a custom dialog with a custom view including a ViewPager. I am getting an error like "No view found for the fragment inside the ViewPager".
The ViewPager seems to be causing some problems here and I couldn't find any answers to this exact case.
tried using alertdialog.builder to build the dialog still the error is persisting. Tried to get the correct context still could not solve the error.
A link to the repo can be found here - https://github.com/Alfurquan/CustomCalendarView
This is my main activity's onCreate
setContentView(R.layout.activity_month_picker);
btn = findViewById(R.id.clickToOpn);
customMonthPicker = findViewById(R.id.customMonthPicker1);
// customMonthPicker.setOnMonthSelectedListener(new OnMonthSelectedListener() {
// @Override
// public void onSelectedMonth(int month) {
// Log.d("msgMonth", String.valueOf(month));
// }
// });
//
// customMonthPicker.setOnYearSelectedListener(new OnYearSelectedListener() {
// @Override
// public void onYearSelected(int year) {
// Log.d("msgYear", String.valueOf(year));
// }
// });
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
CustomMonthAndYearPickerDialog dialog = new CustomMonthAndYearPickerDialog(MonthPickerActivity.this);
dialog.setOnMonthSelectedListener(new OnMonthSelectedListener() {
@Override
public void onSelectedMonth(int month) {
Log.d("msgMonth", String.valueOf(month));
}
});
dialog.setOnYearSelectedListener(new OnYearSelectedListener() {
@Override
public void onYearSelected(int year) {
Log.d("msgYear", String.valueOf(year));
}
});
dialog.show();
}
});
This is the custom dialog code
public CustomMonthAndYearPickerDialog(@NonNull Context context) {
super(context);
setContentView(R.layout.custom_month_dialog);
mContext = context;
initialize();
setClickListeners();
}
public CustomMonthAndYearPickerDialog(@NonNull Context context, int themeResId) {
super(context, themeResId);
}
protected CustomMonthAndYearPickerDialog(@NonNull Context context, boolean cancelable, @Nullable OnCancelListener cancelListener) {
super(context, cancelable, cancelListener);
}
private void initialize() {
customMonthPicker = findViewById(R.id.customMonthPicker1);
btnDone = findViewById(R.id.btnDone1);
btnCancel = findViewById(R.id.btnCancel1);
}
This is the custom view code
Activity activity = getActivityFromContext(getContext());
yearPagerAdapter = new YearPagerAdapter(((AppCompatActivity)activity).getSupportFragmentManager(),context,fragList);
viewPager.setAdapter(yearPagerAdapter);
@Nullable
public Activity getActivityFromContext(@NonNull Context context){
while (context instanceof ContextWrapper) {
if (context instanceof Activity) return (Activity) context;
context = ((ContextWrapper)context).getBaseContext();
}
return null; //we failed miserably
}
this is the viewpager adapter
public class YearPagerAdapter extends FragmentPagerAdapter {
private Context context;
YearFragment[] fragList;
private CalendarManager calendarManager;
public YearPagerAdapter(FragmentManager fm,Context context,YearFragment[] fragList) {
super(fm);
this.context = context;
this.fragList = fragList;
calendarManager = new CalendarManager(context);
}
@Override
public Fragment getItem(int position) {
return fragList[position];
}
@Override
public int getCount() {
return 3;
}
public void setYears(Calendar currentYear){
Calendar prevYear = Calendar.getInstance();
prevYear.setTime(currentYear.getTime());
prevYear.add(Calendar.MONTH,-12);
int prev = prevYear.get(Calendar.YEAR);
Calendar nextYear = Calendar.getInstance();
nextYear.setTime(currentYear.getTime());
nextYear.add(Calendar.MONTH, 12);
int next = nextYear.get(Calendar.YEAR);
int cur = currentYear.get(Calendar.YEAR);
ArrayList<Integer> prevYears,currentYears,nextYears;
prevYears = calendarManager.getYearList(prevYear);
nextYears = calendarManager.getYearList(nextYear);
currentYears = calendarManager.getYearList(currentYear);
fragList[0].updateUI(prevYears);
fragList[1].updateUI(currentYears);
fragList[2].updateUI(nextYears);
}
}
this is the fragment
package com.example.customcalendar.fragments;
import android.annotation.SuppressLint;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.GridView;
import com.example.customcalendar.R;
import com.example.customcalendar.adapter.YearGridAdapter;
import com.example.customcalendar.interfaces.OnYearSelectedListener;
import java.util.ArrayList;
import java.util.Calendar;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
public class YearFragment extends Fragment {
private ArrayList<Integer> yearList;
private View view;
private GridView yearGrid;
int currentYear;
public static int selectedYear;
private YearGridAdapter yearGridAdapter;
public static OnYearSelectedListener onYearSelectedListener;
public YearFragment() {
}
@SuppressLint("ValidFragment")
public YearFragment(ArrayList<Integer> yearList) {
this.yearList = yearList;
}
public static YearFragment newInstance(ArrayList<Integer> yearList){
return new YearFragment(yearList);
}
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
view = inflater.inflate(R.layout.year_view,container,false);
initializeVariables();
setUpYearGridAdapter();
setUpYearGridClicks();
return view;
}
private void initializeVariables() {
yearGrid = view.findViewById(R.id.yearGrid);
Calendar calendar = Calendar.getInstance();
currentYear = calendar.get(Calendar.YEAR);
selectedYear = currentYear;
}
private void setUpYearGridAdapter() {
yearGridAdapter = new YearGridAdapter(view.getContext(),yearList,currentYear,selectedYear);
yearGrid.setAdapter(yearGridAdapter);
}
private void setUpYearGridClicks() {
yearGrid.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long l) {
int year = yearGridAdapter.getItem(position);
selectedYear = year;
onYearSelectedListener.onYearSelected(selectedYear);
setUpYearGridAdapter();
}
});
}
public void updateUI(ArrayList<Integer> yearList){
this.yearList = yearList;
setUpYearGridAdapter();
}
}
this is the xml of dialog
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:id="@+id/header"
android:gravity="center"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="100sp">
<TextView
android:id="@+id/monthName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="April"
android:padding="10sp"
android:textSize="24sp"
android:textColor="#000" />
<TextView
android:id="@+id/yearName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="2019"
android:padding="10sp"
android:textStyle="bold"
android:textSize="24sp"
android:textColor="#000" />
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="2sp"
android:background="@color/grey"/>
</LinearLayout>
<com.example.customcalendar.views.CustomMonthPicker
android:id="@+id/currentMonthPicker"
android:layout_width="match_parent"
android:layout_height="200sp"/>
<LinearLayout
android:orientation="horizontal"
android:weightSum="1"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:id="@+id/btnCancel1"
android:layout_width="0sp"
android:layout_height="wrap_content"
android:text="Cancel"
android:layout_weight="0.5"/>
<Button
android:id="@+id/btnDone1"
android:layout_width="0sp"
android:layout_height="wrap_content"
android:text="Done"
android:layout_weight="0.5"/>
</LinearLayout>
</LinearLayout>
and this is the error message I get:
Error message - "Process: com.example.customcalendar, PID: 17596
java.lang.IllegalArgumentException: No view found for id 0x7f0700ab (com.example.customcalendar:id/yearPager) for fragment YearFragment{20a1ebd5 #0 id=0x7f0700ab android:switcher:2131165355:1}"
