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Android: add loop in slider

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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);

67
doric-demo/src/SliderDemo.ts
View File

@ -1,4 +1,4 @@
import { Group, Panel, List, text, gravity, Color, Stack, LayoutSpec, list, NativeCall, listItem, log, vlayout, Gravity, hlayout, slider, slideItem, image, layoutConfig, ScaleType } from "doric";
import { Group, Panel, text, gravity, Gravity, Color, LayoutSpec, vlayout, slider, slideItem, image, layoutConfig, ScaleType, switchView, hlayout } from "doric";
import { colors } from "./utils";
const imageUrls = [
@ -15,6 +15,27 @@ const imageUrls = [
@Entry
class SliderPanel extends Panel {
build(rootView: Group): void {
let pager = slider({
itemCount: imageUrls.length,
renderPage: (idx) => {
return slideItem(image({
imageUrl: imageUrls[idx % imageUrls.length],
scaleType: ScaleType.ScaleAspectFit,
layoutConfig: layoutConfig().configWidth(LayoutSpec.MOST).configHeight(LayoutSpec.MOST).configAlignment(gravity().center()),
})).also(it => {
let start = idx
it.onClick = () => {
it.backgroundColor = (colors[++start % colors.length])
}
})
},
layoutConfig: {
widthSpec: LayoutSpec.MOST,
heightSpec: LayoutSpec.MOST,
weight: 1,
},
})
rootView.addChild(vlayout([
text({
text: "Gallery",
@ -28,27 +49,31 @@ class SliderPanel extends Panel {
textAlignment: gravity().center(),
height: 50,
}),
slider({
itemCount: 100,
loop: true,
renderPage: (idx) => {
return slideItem(image({
imageUrl: imageUrls[idx % imageUrls.length],
scaleType: ScaleType.ScaleAspectFit,
layoutConfig: layoutConfig().configWidth(LayoutSpec.MOST).configHeight(LayoutSpec.MOST).configAlignment(gravity().center()),
})).also(it => {
let start = idx
it.onClick = () => {
it.backgroundColor = (colors[++start % colors.length])
}
})
},
layoutConfig: {
widthSpec: LayoutSpec.MOST,
heightSpec: LayoutSpec.MOST,
weight: 1,
},
hlayout([
text({
text: "Loop",
layoutConfig: {
widthSpec: LayoutSpec.FIT,
heightSpec: LayoutSpec.JUST,
},
textSize: 20,
textColor: Color.BLACK,
textAlignment: gravity().center(),
height: 50,
}),
switchView({
state: false,
onSwitch: (state) => {
pager.loop = state
},
}),
], {
layoutConfig: layoutConfig().most().configHeight(LayoutSpec.FIT),
gravity: gravity().center(),
space: 10,
backgroundColor: Color.RED,
}),
pager,
]).also(it => {
it.layoutConfig = {
widthSpec: LayoutSpec.MOST,