I'm writing a lot of repetition RecyclerView.Adapter,I feel most of the time write repeat if and else,like getItemViewType,onCreateViewHolder,onBindViewHolder and setSpanSizeLookup getSpanSize,exist a lot of if and else
Write repeat if and else become nightmare...
One day,I decided RecyclerView.Adapter use all if and else wipe out,let RecyclerView.Adapter Automated configuration.
- Use ViewHolder.class and reflect dynamic create ViewHolder
- Use ViewHolder.class.hashCode() as RecyclerVew.Adapter ViewType
- Use package class to ViewType,spanSize build connection,Is no longer create field or extend class
- Use AutoHolder,dynamic set model
- Create ViewHolder can set parameter,stand by key and value
- Stand by GridLayoutManager setSpanSizeLookup,create complex arrangement
AutoRecyclerAdapter let Recycler. Adapter all methods Automated configuration. developer need outside config ViewHolder and Data. No need custom Recycler.Adapter. Stand by create complex arrangement and fast create like shopping app home page layout
To one exist seven different ViewHolder page as example,like shopping app home page layout
Seven different List set up to seven different ViewHolder
1, Set up seven different ViewHolder,use Holder.class.hashCode() as ViewType
autoRecyclerAdapter = new AutoRecyclerAdapter();
manager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
@Override public int getSpanSize(int position) {
return autoRecyclerAdapter.getSpanSize(position);
}
});
autoRecyclerAdapter.setHolder(AutoBannerHolder.class, R.layout.item_banner, this)
.setHolder(AutoTypeAHolder.class, R.layout.item_type_a)
.setHolder(AutoTypeBHolder.class, R.layout.item_type_b)
.setHolder(AutoTypeCHolder.class, R.layout.item_type_c)
.setHolder(AutoTypeDHolder.class, R.layout.item_type_d)
.setHolder(AutoTypeEHolder.class, R.layout.item_type_e)
.setHolder(AutoTypeFHolder.class, R.layout.item_type_f);
2, Network reuqest seven different list
List<ZhaoBean> zhaoList = ModelHelper.getZhaoList(1);
List<QianBean> qianList = ModelHelper.getQianList(10);
List<SunBean> sunList = ModelHelper.getSunList(1);
List<LiBean> liList = ModelHelper.getLiList(4);
List<ZhouBean> zhouList = ModelHelper.getZhouList(10);
List<WuBean> wuList = ModelHelper.getWuList(1);
List<ZhengBean> zhengList = ModelHelper.getZhengList(30);
3, Set up seven different List to ViewHolder,use Holder.class.hashCode() as ViewType
autoRecyclerAdapter.setDataListSpan(AutoBannerHolder.class, zhaoList, SPAN_SIZE)
.setDataListSpan(AutoTypeAHolder.class, qianList, SPAN_SIZE / 5)
.setDataListSpan(AutoTypeBHolder.class, sunList, SPAN_SIZE)
.setDataListSpan(AutoTypeCHolder.class, liList, SPAN_SIZE / 2)
.setDataListSpan(AutoTypeDHolder.class, zhouList, SPAN_SIZE / 5)
.setDataListSpan(AutoTypeEHolder.class, wuList, SPAN_SIZE)
.setDataListSpan(AutoTypeFHolder.class, zhengList, SPAN_SIZE / 2)
.notifyDataSetChanged();
1, if only use one List and one ViewHolder
autoRecyclerAdapter = new AutoRecyclerAdapter();
.setHolder(AutoTypeAHolder.class, R.layout.item_type_a);
autoRecyclerAdapter.setDataList(AutoTypeAHolder.class, qianList)
.notifyDataSetChanged();
2, if use two List and two ViewHolder
autoRecyclerAdapter = new AutoRecyclerAdapter();
.setHolder(AutoTypeAHolder.class, R.layout.item_type_a)
.setHolder(AutoTypeBHolder.class, R.layout.item_type_b);
autoRecyclerAdapter.setDataList(AutoTypeAHolder.class, qianList)
.setDataList(AutoTypeBHolder.class, sunList)
.notifyDataSetChanged();
3, if use GridLayoutManager setSpanSizeLookup
autoRecyclerAdapter = new AutoRecyclerAdapter();
manager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
@Override public int getSpanSize(int position) {
return autoRecyclerAdapter.getSpanSize(position);
}
});
autoRecyclerAdapter = new AutoRecyclerAdapter();
.setHolder(AutoTypeAHolder.class, R.layout.item_type_a)
.setHolder(AutoTypeBHolder.class, R.layout.item_type_b);
int spanSizeA = 2;
int spanSizeB = spanSizeA / 2;
autoRecyclerAdapter.setDataList(AutoTypeAHolder.class, qianList, spanSizeA)
.setDataList(AutoTypeBHolder.class, sunList, spanSizeB)
.notifyDataSetChanged();
1,Stand by to ViewHolder transfer parameter: key and value like map
public <H extends AutoHolder> AutoRecyclerAdapter setHolderToData(Class<H> holderClass,
int layoutRes, Map<String, Object> dataMap) {
return setHolderToData(holderClass.hashCode(), holderClass, layoutRes, dataMap);
}
public <H extends AutoHolder> AutoRecyclerAdapter setHolderToListener(Class<H> holderClass,
int layoutRes, String key, Object value, OnAutoHolderListener listener) {
Map<String, Object> dataMap = new HashMap<>();
dataMap.put(key, value);
dataMap.put(AutoHolder.LISTENER, listener);
return setHolderToData(holderClass.hashCode(), holderClass, layoutRes, dataMap);
}
2,Stand by use GridLayoutManager setSpanSizeLookup,create complex arrangement
public <H extends AutoHolder, M> AutoRecyclerAdapter setDataObjectSpan(Class<H> holderClass,
M bean, int spanSize) {
return setDataObject(holderClass.hashCode(), bean, spanSize);
}
public <H extends AutoHolder, M> AutoRecyclerAdapter setDataListSpan(Class<H> holderClass,
List<M> list, int spanSize) {
return setDataList(holderClass.hashCode(), list, spanSize);
}
One core class,four auxiliary class
name | description |
---|---|
AutoRecyclerAdapter | Automated configuration Recycler.Adapter core class |
AutoHolder | Automated configuration need ViewHolder |
AutoPackage | AutoRecyclerAdapter need model |
AutoHolderPackage | Automated create VewHolder need model |
OnAutoHolderListener | AutoHolder outside build connection example |
Add it in your root build.gradle at the end of repositories:
allprojects {
repositories {
...
maven { url 'https://jitpack.io' }
}
}
Add the dependency:
dependencies {
compile 'com.github.teambition:AutoRecyclerAdapter:v1.5'
}
-keep public class * extends zhan.auto_adapter.AutoHolder {
public <init>(android.view.View, java.util.Map);
}
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Copyright 2017 ruzhan
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