Android: customize snap helper for handle scrollTriggeredManually

doric-pub · Dec 22, 2023 · 78b782d · 78b782d
1 parent 97d7cdb
commit 78b782d
Showing 1 changed file with 21 additions and 2 deletions.
diff --git a/doric-android/doric/src/main/java/pub/doric/shader/slider/SliderNode.java b/doric-android/doric/src/main/java/pub/doric/shader/slider/SliderNode.java
@@ -22,6 +22,7 @@
 import android.view.View;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.LinearSmoothScroller;
 import androidx.recyclerview.widget.PagerSnapHelper;
@@ -35,7 +36,6 @@
 import java.util.concurrent.Callable;
 
 import pub.doric.DoricContext;
-import pub.doric.DoricScrollChangeListener;
 import pub.doric.async.AsyncResult;
 import pub.doric.extension.bridge.DoricMethod;
 import pub.doric.extension.bridge.DoricPlugin;
@@ -74,6 +74,8 @@ public class SliderNode extends SuperNode<RecyclerView> {
     private String onScrollFuncId;
     private final DoricJSDispatcher jsDispatcher = new DoricJSDispatcher();
 
+    private boolean scrollTriggeredManually;
+
     public SliderNode(DoricContext doricContext) {
         super(doricContext);
         this.slideAdapter = new SlideAdapter(this);
@@ -105,7 +107,23 @@ public void smoothScrollToPosition(RecyclerView recyclerView, RecyclerView.State
         };
 
         recyclerView.setLayoutManager(layoutManager);
-        snapHelper = new PagerSnapHelper();
+        snapHelper = new PagerSnapHelper() {
+            @Nullable
+            @Override
+            public View findSnapView(RecyclerView.LayoutManager layoutManager) {
+                if (scrollTriggeredManually) {
+                    mView.post(new Runnable() {
+                        @Override
+                        public void run() {
+                            scrollTriggeredManually = false;
+                        }
+                    });
+                    return null;
+                } else {
+                    return super.findSnapView(layoutManager);
+                }
+            }
+        };
         snapHelper.attachToRecyclerView(recyclerView);
 
         recyclerView.addItemDecoration(new RecyclerView.ItemDecoration() {
@@ -437,6 +455,7 @@ public void scrollBy(JSObject params) {
         }
         float dx = params.getProperty("dx").asNumber().toFloat();
         if (animated) {
+            scrollTriggeredManually = true;
             mView.smoothScrollBy(DoricUtils.dp2px(dx), 0);
         } else {
             mView.scrollBy(DoricUtils.dp2px(dx), 0);