I'm trying to make a slidescreen with viewpager and fragments so that I can load different layouts per fragment and give each page different functionality.
I followed a tutorial to accomplish this.
The error I'm getting when hovering over public Fragment getItem(int arg0): The return type is incompatible with FragmentPagerAdapter.getItem(int)
and error #2: The constructor FragmentPagerAdapter(FragmentManager) is undefined
--> getting this one when hovering super(fm);
package com.example.spui;
import android.os.Bundle;
import android.app.Fragment;
import android.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
public class MyFragmentPagerAdapter extends FragmentPagerAdapter{
final int PAGE_COUNT = 5;
/** Constructor of the class */
public MyFragmentPagerAdapter(FragmentManager fm) {
super(fm);
}
/** This method will be invoked when a page is requested to create */
@Override
public Fragment getItem(int arg0) {
MyFragment myFragment = new MyFragment();
Bundle data = new Bundle();
data.putInt("current_page", arg0+1);
myFragment.setArguments(data);
return myFragment;
}
/** Returns the number of pages */
@Override
public int getCount() {
return PAGE_COUNT;
}
}
ViewPager2 is an improved version of the ViewPager library that offers enhanced functionality and addresses common difficulties with using ViewPager . If your app already uses ViewPager , read this page to learn more about migrating to ViewPager2 .
ViewPager2 uses FragmentStateAdapter objects as a supply for new pages to display, so the FragmentStateAdapter will use the fragment class that you created earlier. Create an activity that does the following things: Sets the content view to be the layout with the ViewPager2 .
Implement Swipe Views You can create swipe views using AndroidX's ViewPager widget. To use ViewPager and tabs, you need to add a dependency on ViewPager and on Material Components to your project. To insert child views that represent each page, you need to hook this layout to a PagerAdapter .
Steps for implementing viewpager: Adding the ViewPager widget to the XML layout (usually the main_layout). Creating an Adapter by extending the FragmentPagerAdapter or FragmentStatePagerAdapter class.
You are using the wrong FragmentManager import. Use android.support.v4.app.FragmentManager instead.
Same problem with Fragment - use android.support.v4.app.Fragment
Note: if you are building an API11+ only application and want to use the native Fragments, then you should instead change your FragmentPagerAdapter import to android.support.v13.app.FragmentPagerAdapter.
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