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Android: add loop in slider

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This commit is contained in:
王劲鹏
2020-04-10 10:33:15 +08:00
committed by osborn
parent c44c3e5353
commit 4bb9df4dbb
3 changed files with 91 additions and 30 deletions
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27
doric-android/doric/src/main/java/pub/doric/shader/slider/SlideAdapter.java
View File

@@ -71,7 +71,11 @@ class SlideAdapter extends RecyclerView.Adapter<SlideAdapter.DoricViewHolder> {
@Override
public int getItemCount() {
return itemCount;
if (loop) {
return itemCount + 2;
} else {
return itemCount;
}
}
@Override
@@ -86,11 +90,24 @@ class SlideAdapter extends RecyclerView.Adapter<SlideAdapter.DoricViewHolder> {
}
private JSValue getItemModel(final int position) {
String id = itemValues.get(position);
int index;
if (loop) {
if (position == 0) {
index = itemCount - 1;
} else if (position == itemCount + 1) {
index = 0;
} else {
index = position - 1;
}
} else {
index = position;
}
String id = itemValues.get(index);
if (TextUtils.isEmpty(id)) {
AsyncResult<JSDecoder> asyncResult = sliderNode.callJSResponse(
"renderBunchedItems",
position,
index,
batchCount);
try {
JSDecoder jsDecoder = asyncResult.synchronous().get();
@@ -100,10 +117,10 @@ class SlideAdapter extends RecyclerView.Adapter<SlideAdapter.DoricViewHolder> {
for (int i = 0; i < jsArray.size(); i++) {
JSObject itemModel = jsArray.get(i).asObject();
String itemId = itemModel.getProperty("id").asString().value();
itemValues.put(i + position, itemId);
itemValues.put(i + index, itemId);
sliderNode.setSubModel(itemId, itemModel);
}
return sliderNode.getSubModel(itemValues.get(position));
return sliderNode.getSubModel(itemValues.get(index));
}
} catch (Exception e) {
e.printStackTrace();

27
doric-android/doric/src/main/java/pub/doric/shader/slider/SliderNode.java
View File

@@ -65,12 +65,23 @@ public class SliderNode extends SuperNode<RecyclerView> {
public void onScrollStateChanged(@NonNull RecyclerView recyclerView, int newState) {
if (newState == RecyclerView.SCROLL_STATE_IDLE) {
View view = snapHelper.findSnapView(layoutManager);
if (view != null && !TextUtils.isEmpty(onPageSlidedFuncId)) {
if (view != null) {
int position = layoutManager.getPosition(view);
if (position != lastPosition) {
callJSResponse(onPageSlidedFuncId, position);
if (slideAdapter.loop) {
if (position == 0) {
recyclerView.scrollToPosition(slideAdapter.itemCount);
} else if (position == slideAdapter.itemCount + 1) {
recyclerView.scrollToPosition(1);
}
}
if (!TextUtils.isEmpty(onPageSlidedFuncId)) {
if (position != lastPosition) {
callJSResponse(onPageSlidedFuncId, position);
}
lastPosition = position;
}
lastPosition = position;
}
}
}
@@ -154,6 +165,14 @@ public class SliderNode extends SuperNode<RecyclerView> {
case "loop":
boolean loop = prop.asBoolean().value();
slideAdapter.loop = loop;
if (loop) {
mView.post(new Runnable() {
@Override
public void run() {
mView.scrollToPosition(1);
}
});
}
break;
default:
super.blend(view, name, prop);