From 3f5104d60a47b42d6d12b76d58e3a4d3c34756d5 Mon Sep 17 00:00:00 2001
From: Javi Rueda <foss@franjaru.com>
Date: Mon, 29 Mar 2021 17:38:51 +0200
Subject: [PATCH] Hide floating wallet on the Channel fragment (#1177)

* Hide floating wallet on the Channel fragment

* Unregister OnPageChangeCallback when exiting channel fragment
---
 .../browser/ui/channel/ChannelFragment.java   | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/app/src/main/java/io/lbry/browser/ui/channel/ChannelFragment.java b/app/src/main/java/io/lbry/browser/ui/channel/ChannelFragment.java
index c10ff3a0..5b731283 100644
--- a/app/src/main/java/io/lbry/browser/ui/channel/ChannelFragment.java
+++ b/app/src/main/java/io/lbry/browser/ui/channel/ChannelFragment.java
@@ -73,6 +73,7 @@ public class ChannelFragment extends BaseFragment implements FetchChannelsListen
     private TextView textFollowerCount;
     private TabLayout tabLayout;
     private ViewPager2 tabPager;
+    ViewPager2.OnPageChangeCallback opcc;
 
     private View buttonEdit;
     private View buttonDelete;
@@ -91,6 +92,8 @@ public class ChannelFragment extends BaseFragment implements FetchChannelsListen
     // if this is set, scroll to the specific comment on load
     private String commentHash;
 
+    private float floatingWalletPositionY;
+
     public View onCreateView(@NonNull LayoutInflater inflater,
                              ViewGroup container, Bundle savedInstanceState) {
         View root = inflater.inflate(R.layout.fragment_channel, container, false);
@@ -122,6 +125,25 @@ public class ChannelFragment extends BaseFragment implements FetchChannelsListen
         tabLayout = root.findViewById(R.id.channel_view_tabs);
         tabPager.setSaveEnabled(false);
 
+        View floatingBalance = getActivity().findViewById(R.id.floating_balance_main_container);
+        floatingWalletPositionY = floatingBalance.getY();
+
+        opcc = new ViewPager2.OnPageChangeCallback() {
+            @Override
+            public void onPageSelected(int position) {
+                super.onPageSelected(position);
+
+                if (position > 0) {
+                    // Hide floating wallet for the About and the Comment tabs as they are mostly text
+                    ((MainActivity) getContext()).translateFloatingWallet(floatingWalletPositionY);
+                } else {
+                    ((MainActivity) getContext()).restoreWalletContainerPosition();
+                }
+            }
+        };
+
+        tabPager.registerOnPageChangeCallback(opcc);
+
         buttonEdit.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
@@ -380,6 +402,15 @@ public class ChannelFragment extends BaseFragment implements FetchChannelsListen
         super.onPause();
     }
 
+    public void onStop() {
+        Context context = getContext();
+        if (context instanceof MainActivity) {
+            ((MainActivity) context ).restoreWalletContainerPosition();
+        }
+        tabPager.unregisterOnPageChangeCallback(opcc);
+        super.onStop();
+    }
+
     private void checkParams() {
         boolean updateRequired = false;
         Map<String, Object> params = getParams();