Change ImageFragment call with ImageView

app/build.gradle

@@ -52,6 +52,5 @@ dependencies {
     implementation "ru.noties:markwon:${markwonVersion}"
     implementation "com.github.Cutta:TagView:${tagViewVersion}"
     implementation "me.relex:circleindicator:${circleIndicatorVersion}"
-    implementation 'com.android.support:support-v4:28.0.0'
 }
 apply plugin: 'com.google.gms.google-services'

app/src/main/java/app/insti/adapter/ImageViewPagerAdapter.java

 package app.insti.adapter;
 
+import android.content.Context;
+import android.support.annotation.NonNull;
 import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentManager;
 import android.support.v4.app.FragmentPagerAdapter;
+import android.support.v4.view.PagerAdapter;
 import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+
+import com.squareup.picasso.Picasso;
 
 import java.util.ArrayList;
 import java.util.List;
 
+import app.insti.R;
 import app.insti.api.model.Venter;
 import app.insti.fragment.AddImageFragment;
 import app.insti.fragment.ImageFragment;
@@ -16,29 +26,87 @@ import app.insti.fragment.ImageFragment;
  * Created by Shivam Sharma on 25-09-2018.
  */
 
-public class ImageViewPagerAdapter extends FragmentPagerAdapter {
+public class ImageViewPagerAdapter extends PagerAdapter {
 
     private static final String TAG = ImageViewPagerAdapter.class.getSimpleName();
     private List<String> images = new ArrayList<>();
+    Venter.Complaint detailedComplaint; //maybe not needed
+    public Context context;
+    public LayoutInflater inflater;
 
-    public ImageViewPagerAdapter(FragmentManager fragmentManager, List<String> images) {
+    /*public ImageViewPagerAdapter(FragmentManager fragmentManager, List<String> images)
+    {
         super(fragmentManager);
         this.images = images;
     }
 
-    public ImageViewPagerAdapter(FragmentManager fragmentManager, Venter.Complaint detailedComplaint){
+    public ImageViewPagerAdapter(FragmentManager fragmentManager, Venter.Complaint detailedComplaint)
+    {
         super(fragmentManager);
-        images.addAll(detailedComplaint.getImages());
+        this.detailedComplaint = detailedComplaint;
+
+        for (String image: detailedComplaint.getImages()){
+            images.add(image);
+        }
+    }*/
+
+    public ImageViewPagerAdapter(Context context, List<String> images)
+    {
+        this.context = context;
+        this.images = images;
+        inflater= (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+    }
+
+    public ImageViewPagerAdapter(Context context, Venter.Complaint detailedComplaint)
+    {
+        this.context = context;
+        this.detailedComplaint = detailedComplaint;
+        inflater= (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+
+        for (String image: detailedComplaint.getImages()){
+            images.add(image);
+        }
     }
 
     @Override
     public int getCount() {
-        if (images.size() == 0)
-            return 1;
+
         return images.size();
     }
 
     @Override
+    public boolean isViewFromObject(@NonNull View view, @NonNull Object o) {
+        return view.equals(o);
+    }
+
+    @Override
+    public void destroyItem(ViewGroup container, int position, Object object) {
+        container.removeView((View) object);
+    }
+
+    @Override
+    public Object instantiateItem(ViewGroup view, int position)
+    {
+        View imageLayout = inflater.inflate(R.layout.slidingimages_layout, view, false);
+
+        assert imageLayout != null;
+        final ImageView imageView = (ImageView) imageLayout.findViewById(R.id.slidingImageView);
+
+        if (!(images.get(position).isEmpty()))
+            //imageView.setImageResource(Integer.parseInt(images.get(position)));
+            Picasso.get().load(images.get(position)).into(imageView);
+        else
+            Picasso.get().load(images.get(position)).placeholder(context.getDrawable(R.drawable.ic_add_a_photo_black_24dp)).into(imageView);
+
+        view.addView(imageLayout, 0);
+
+        return imageLayout;
+    }
+
+
+
+
+    /*@Override
     public Fragment getItem(int position) {
         Log.i(TAG, "images = " + images.size());
         Log.i(TAG, "size = " + getCount());
@@ -49,7 +117,7 @@ public class ImageViewPagerAdapter extends FragmentPagerAdapter {
             return new AddImageFragment();
         }else {
             Log.i(TAG,"calling 2");
-            return ImageFragment.newInstance(images.get(position));
+            return ImageFragment.newInstance(images.get(position),position);
         }
-    }
+    }*/
 }
\ No newline at end of file

app/src/main/java/app/insti/fragment/ComplaintFragment.java

@@ -106,7 +106,7 @@ public class ComplaintFragment extends Fragment {
         viewPager = mview.findViewById(R.id.complaint_image_view_pager);
         if (viewPager != null) {
             try {
-                ImageViewPagerAdapter imageFragmentPagerAdapter = new ImageViewPagerAdapter(getChildFragmentManager(), detailedComplaint);
+                ImageViewPagerAdapter imageFragmentPagerAdapter = new ImageViewPagerAdapter(getActivity(), detailedComplaint);
                 viewPager.setAdapter(imageFragmentPagerAdapter);
                 circleIndicator.setViewPager(viewPager);
                 imageFragmentPagerAdapter.registerDataSetObserver(circleIndicator.getDataSetObserver());

app/src/main/java/app/insti/fragment/FileComplaintFragment.java

@@ -851,7 +851,7 @@ public class FileComplaintFragment extends Fragment {
 
         if (viewPager != null) {
             try {
-                imageViewPagerAdapter = new ImageViewPagerAdapter(getFragmentManager(), uploadedImagesUrl);
+                imageViewPagerAdapter = new ImageViewPagerAdapter(getActivity(), uploadedImagesUrl);
                 collapsing_toolbar.setVisibility(View.VISIBLE);
                 viewPager.setAdapter(imageViewPagerAdapter);
                 indicator.setViewPager(viewPager);

app/src/main/res/layout/slidingimages_layout.xml

+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:gravity="center">
+
+    <ImageView
+        android:id="@+id/slidingImageView"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="#00000000" />
+
+</LinearLayout>
\ No newline at end of file