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Convert the MediaDetailAdapter to kotlin

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This commit is contained in:
Paul Hawke 2025-07-11 14:49:10 -05:00
parent d59d8bcbd9
commit 1d1210e863
2 changed files with 76 additions and 95 deletions
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95
app/src/main/java/fr/free/nrw/commons/media/MediaDetailAdapter.java
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@ -1,95 +0,0 @@
package fr.free.nrw.commons.media;
import android.view.ViewGroup;
import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentStatePagerAdapter;
import timber.log.Timber;
//FragmentStatePagerAdapter allows user to swipe across collection of images (no. of images undetermined)
class MediaDetailAdapter extends FragmentStatePagerAdapter {
final MediaDetailPagerFragment mediaDetailPagerFragment;
/**
* Keeps track of the current displayed fragment.
*/
private Fragment mCurrentFragment;
public MediaDetailAdapter(MediaDetailPagerFragment mediaDetailPagerFragment,
FragmentManager fm) {
super(fm);
this.mediaDetailPagerFragment = mediaDetailPagerFragment;
}
@Override
public Fragment getItem(int i) {
if (i == 0) {
// See bug https://code.google.com/p/android/issues/detail?id=27526
if (mediaDetailPagerFragment.getActivity() == null) {
Timber.d("Skipping getItem. Returning as activity is destroyed!");
return null;
}
mediaDetailPagerFragment.binding.mediaDetailsPager.postDelayed(
() -> mediaDetailPagerFragment.getActivity().invalidateOptionsMenu(), 5);
}
if (mediaDetailPagerFragment.isFromFeaturedRootFragment) {
return MediaDetailFragment.forMedia(mediaDetailPagerFragment.position + i,
mediaDetailPagerFragment.editable, mediaDetailPagerFragment.isFeaturedImage,
mediaDetailPagerFragment.isWikipediaButtonDisplayed);
} else {
return MediaDetailFragment.forMedia(i, mediaDetailPagerFragment.editable,
mediaDetailPagerFragment.isFeaturedImage,
mediaDetailPagerFragment.isWikipediaButtonDisplayed);
}
}
@Override
public int getCount() {
if (mediaDetailPagerFragment.getActivity() == null) {
Timber.d("Skipping getCount. Returning as activity is destroyed!");
return 0;
}
return mediaDetailPagerFragment.provider.getTotalMediaCount();
}
/**
* Get the currently displayed fragment.
*
* @return
*/
public Fragment getCurrentFragment() {
return mCurrentFragment;
}
/**
* If current fragment is of type MediaDetailFragment, return it, otherwise return null.
*
* @return MediaDetailFragment
*/
public MediaDetailFragment getCurrentMediaDetailFragment() {
if (mCurrentFragment instanceof MediaDetailFragment) {
return (MediaDetailFragment) mCurrentFragment;
}
return null;
}
/**
* Called to inform the adapter of which item is currently considered to be the "primary", that
* is the one show to the user as the current page.
*
* @param container
* @param position
* @param object
*/
@Override
public void setPrimaryItem(@NonNull final ViewGroup container, final int position,
@NonNull final Object object) {
// Update the current fragment if changed
if (getCurrentFragment() != object) {
mCurrentFragment = ((Fragment) object);
}
super.setPrimaryItem(container, position, object);
}
}

76
app/src/main/java/fr/free/nrw/commons/media/MediaDetailAdapter.kt Normal file
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@ -0,0 +1,76 @@
package fr.free.nrw.commons.media
import android.view.ViewGroup
import androidx.fragment.app.Fragment
import androidx.fragment.app.FragmentManager
import androidx.fragment.app.FragmentStatePagerAdapter
import fr.free.nrw.commons.media.MediaDetailFragment.Companion.forMedia
import timber.log.Timber
// FragmentStatePagerAdapter allows user to swipe across collection of images (no. of images undetermined)
internal class MediaDetailAdapter(
val mediaDetailPagerFragment: MediaDetailPagerFragment,
fm: FragmentManager
) : FragmentStatePagerAdapter(fm) {
/**
* Keeps track of the current displayed fragment.
*/
private var currentFragment: Fragment? = null
override fun getItem(i: Int): Fragment {
if (i == 0) {
// See bug https://code.google.com/p/android/issues/detail?id=27526
if (mediaDetailPagerFragment.activity == null) {
Timber.d("Skipping getItem. Returning as activity is destroyed!")
return Fragment()
}
mediaDetailPagerFragment.binding.mediaDetailsPager.postDelayed(
{ mediaDetailPagerFragment.requireActivity().invalidateOptionsMenu() }, 5
)
}
return if (mediaDetailPagerFragment.isFromFeaturedRootFragment) {
forMedia(
mediaDetailPagerFragment.position + i,
mediaDetailPagerFragment.editable, mediaDetailPagerFragment.isFeaturedImage,
mediaDetailPagerFragment.isWikipediaButtonDisplayed
)
} else {
forMedia(
i, mediaDetailPagerFragment.editable,
mediaDetailPagerFragment.isFeaturedImage,
mediaDetailPagerFragment.isWikipediaButtonDisplayed
)
}
}
override fun getCount(): Int {
if (mediaDetailPagerFragment.activity == null) {
Timber.d("Skipping getCount. Returning as activity is destroyed!")
return 0
}
return mediaDetailPagerFragment.provider.getTotalMediaCount()
}
/**
* If current fragment is of type MediaDetailFragment, return it, otherwise return null.
*
* @return MediaDetailFragment
*/
val currentMediaDetailFragment: MediaDetailFragment?
get() = currentFragment as? MediaDetailFragment
/**
* Called to inform the adapter of which item is currently considered to be the "primary", that
* is the one show to the user as the current page.
*/
override fun setPrimaryItem(
container: ViewGroup, position: Int,
obj: Any
) {
// Update the current fragment if changed
if (currentFragment !== obj) {
currentFragment = (obj as Fragment)
}
super.setPrimaryItem(container, position, obj)
}
}