fix setStackFromEnd

Author: xhp

android/chatinput/src/main/java/cn/jiguang/imui/chatinput/ChatInputView.java

@@ -318,7 +318,7 @@ public void run() {
                 mLastClickId = view.getId();
 //                mMenuContainer.requestLayout();
             }
-            Log.w(TAG, "viewId: " + view.getId() + "-showType:" + showType);
+//            Log.w(TAG, "viewId: " + view.getId() + "-showType:" + showType);
         }
     };
     private IEmoticonSelectedListener emoticonSelectedListener = new IEmoticonSelectedListener() {
@@ -638,7 +638,7 @@ public void onGlobalLayout() {
             mWindow.getDecorView().getWindowVisibleDisplayFrame(r);
             int screenHeight = mWindow.getDecorView().getRootView().getHeight();
             int height = screenHeight - r.bottom + mChatInputContainer.getHeight();
-            Log.d(TAG, "Keyboard Size: " + px2dip(height) + "-showType:" + showType);
+//            Log.d(TAG, "Keyboard Size: " + px2dip(height) + "-showType:" + showType);
             if (inputHeight == height) {
                 return;
             }

android/messagelist/src/main/java/cn/jiguang/imui/messages/MsgListAdapter.java

@@ -390,12 +390,7 @@ public void addToStart(List<MESSAGE> messages, boolean scrollToBottom) {
             if (scrollToBottom) {
                 mLayoutManager.scrollToPosition(0);
             }
-            if (mLayoutManager.canScrollVertically()) {
-                mLayoutManager.setStackFromEnd(false);
-            } else {
-                mLayoutManager.requestLayout();
-            }
-            Log.w("MsgListAdapter", "canScrollVertically:" + mLayoutManager.canScrollVertically());
+            mLayoutManager.requestLayout();
         }
     }
 

android/messagelist/src/main/java/cn/jiguang/imui/messages/ScrollMoreListener.java

@@ -13,7 +13,7 @@ public class ScrollMoreListener extends RecyclerView.OnScrollListener {
     private int mCurrentPage = 0;
     private int mPreviousTotalItemCount = 0;
     private boolean mLoading = false;
-    private int visibleThreshold = 20;
+    private int visibleThreshold = 5;
     private int scrollThreshold = 3;
     private boolean autoScroll = true;
 
@@ -39,6 +39,26 @@ private int getLastVisibleItem(int[] lastVisibleItemPositions) {
 
     @Override
     public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
+        if (mLayoutManager instanceof LinearLayoutManager) {
+            LinearLayoutManager ll = (LinearLayoutManager) mLayoutManager;
+            if (ll.getStackFromEnd()) {
+                if (ll.getChildCount() < mLayoutManager.getItemCount()) {
+                    try {
+                        ll.setStackFromEnd(false);
+                    } catch (Exception e) {
+                        e.printStackTrace();
+                    }
+                }
+            }else {
+                if (ll.getChildCount() >= mLayoutManager.getItemCount()) {
+                    try {
+                        ll.setStackFromEnd(true);
+                    } catch (Exception e) {
+                        e.printStackTrace();
+                    }
+                }
+            }
+        }
         if (mListener != null) {
             int lastVisibleItemPosition = 0;
             int firstVisibleItemPosition = 0;