会话列表页面，支持双击底部 item 滑动到下一个未读会话 fix #IBCGUU

wildfirechat · Dec 20, 2024 · ada5a96 · ada5a96
1 parent d571c48
commit ada5a96
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Showing 3 changed files with 47 additions and 2 deletions.
diff --git a/chat/src/main/java/cn/wildfire/chat/app/main/MainActivity.java b/chat/src/main/java/cn/wildfire/chat/app/main/MainActivity.java
@@ -105,9 +105,11 @@ public class MainActivity extends WfcBaseActivity {
     private boolean isInitialized = false;
 
     private ContactListFragment contactListFragment;
+    private ConversationListFragment conversationListFragment;
 
     private ContactViewModel contactViewModel;
     private ConversationListViewModel conversationListViewModel;
+    private long lastSelectConversatonListItemTimestamp = 0;
 
     protected void bindViews() {
         super.bindViews();
@@ -331,7 +333,7 @@ private void initView() {
         //设置ViewPager的最大缓存页面
         contentViewPager.setOffscreenPageLimit(4);
 
-        ConversationListFragment conversationListFragment = new ConversationListFragment();
+        conversationListFragment = new ConversationListFragment();
         contactListFragment = new ContactListFragment();
         DiscoveryFragment discoveryFragment = new DiscoveryFragment();
         MeFragment meFragment = new MeFragment();
@@ -347,7 +349,17 @@ private void initView() {
         contentViewPager.registerOnPageChangeCallback(this.onPageChangeCallback);
 
         bottomNavigationView.setOnItemReselectedListener(item -> {
-            // do nothing
+            switch (item.getItemId()) {
+                case R.id.conversation_list:
+                    long now = System.currentTimeMillis();
+                    if(now - lastSelectConversatonListItemTimestamp < 200){
+                        conversationListFragment.scrollToNextUnreadConversation();
+                    }
+                    lastSelectConversatonListItemTimestamp = now;
+                    break;
+                default:
+                    break;
+            }
         });
         bottomNavigationView.setOnItemSelectedListener(item -> {
             switch (item.getItemId()) {

diff --git a/uikit/src/main/java/cn/wildfire/chat/kit/conversationlist/ConversationListAdapter.java b/uikit/src/main/java/cn/wildfire/chat/kit/conversationlist/ConversationListAdapter.java
@@ -63,6 +63,16 @@ public void setConversationInfos(List<ConversationInfo> conversationInfos) {
         submit(this.statusNotifications, conversationInfos);
     }
 
+    public int getNextUnreadConversationPosition(int position) {
+        for (int i = position + 1; i < getItemCount(); i++) {
+            ConversationInfo conversationInfo = conversationInfos.get(i - headerCount());
+            if (!conversationInfo.isSilent && (conversationInfo.unreadCount.unread + conversationInfo.unreadCount.unreadMention + conversationInfo.unreadCount.unreadMentionAll) > 0) {
+                return i;
+            }
+        }
+        return -1;
+    }
+
     public void setOnClickConversationItemListener(OnClickConversationItemListener onClickConversationItemListener) {
         this.onClickConversationItemListener = onClickConversationItemListener;
     }

diff --git a/uikit/src/main/java/cn/wildfire/chat/kit/conversationlist/ConversationListFragment.java b/uikit/src/main/java/cn/wildfire/chat/kit/conversationlist/ConversationListFragment.java
@@ -12,6 +12,7 @@
 import androidx.lifecycle.ViewModelProvider;
 import androidx.lifecycle.ViewModelProviders;
 import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.LinearSmoothScroller;
 import androidx.recyclerview.widget.RecyclerView;
 import androidx.recyclerview.widget.SimpleItemAnimator;
 
@@ -49,6 +50,7 @@ public class ConversationListFragment extends ProgressFragment {
     private StatusNotificationViewModel statusNotificationViewModel;
     private LinearLayoutManager layoutManager;
     private OnClickConversationItemListener onClickConversationItemListener;
+    private RecyclerView.SmoothScroller smoothScroller;
 
     @Override
     protected int contentLayout() {
@@ -90,6 +92,13 @@ private void init() {
         recyclerView.setAdapter(adapter);
         ((SimpleItemAnimator) recyclerView.getItemAnimator()).setSupportsChangeAnimations(false);
 
+        smoothScroller = new LinearSmoothScroller(getContext()) {
+            @Override
+            protected int getVerticalSnapPreference() {
+                return LinearSmoothScroller.SNAP_TO_START;
+            }
+        };
+
         UserViewModel userViewModel = ViewModelProviders.of(this).get(UserViewModel.class);
         userViewModel.userInfoLiveData().observe(this, new Observer<List<UserInfo>>() {
             @Override
@@ -164,6 +173,20 @@ public void onChanged(Object o) {
         reloadConversations();
     }
 
+    public void scrollToNextUnreadConversation() {
+        int start = layoutManager.findFirstVisibleItemPosition();
+        int end = layoutManager.findLastVisibleItemPosition();
+        int nextUnreadConversationPosition = adapter.getNextUnreadConversationPosition(start);
+        if (nextUnreadConversationPosition > 0) {
+            if (nextUnreadConversationPosition >= start && nextUnreadConversationPosition <= end) {
+                smoothScroller.setTargetPosition(nextUnreadConversationPosition);
+                layoutManager.startSmoothScroll(smoothScroller);
+            } else {
+                recyclerView.smoothScrollToPosition(nextUnreadConversationPosition);
+            }
+        }
+    }
+
     private void loadAndShowPCOnlineNotification() {
         List<PCOnlineInfo> pcOnlineInfos = ChatManager.Instance().getPCOnlineInfos();
         statusNotificationViewModel.clearStatusNotificationByType(PCOnlineStatusNotification.class);