RecyclerView 项目实例
项目中使用到recyclerView来取代了Listview，这里主要用来记录recyclerview的使用方法步骤。
routeRecyclerview.setLayoutManager(new LinearLayoutManager(this));
routeRecyclerview.setItemAnimator(new FadeInAnimator());
routeRecyclerview.addItemDecoration(new RecyclerItemDivider(this));
routeAdapter = new RouteAdapter(this, datas, onItemClickListener);
AlphaInAnimationAdapter alphaAdapter = new AlphaInAnimationAdapter(routeAdapter);
ScaleInAnimationAdapter scaleAdapter = new ScaleInAnimationAdapter(alphaAdapter);
routeRecyclerview.setAdapter(scaleAdapter);
routeRecyclerview.addOnScrollListener(new RecyclerView.OnScrollListener() {
@Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
// 是否满足加载更多
if (routeAdapter.isShowLoadMore()) {
LinearLayoutManager layoutManager = (LinearLayoutManager) routeRecyclerview.getLayoutManager();
int totalItemCount = layoutManager.getItemCount();//获取总大小
int visibleItem = layoutManager.getChildCount();//获取屏幕中可见条总数
if (visibleItem > 0 && layoutManager.findLastVisibleItemPosition() >= totalItemCount - 1) {
if (!isLoading) {//加载更多逻辑
isLoading = true;
if (Config.isNetworkConnected(mContext)) {
if (pageNoResult != null && pageNoResult.getHasMore()) {
currentPage++;
mPageBuilder.setPageNo(currentPage);
loadData();
}
} else {
isLoading = false;
}
}
}
}
}
});1.添加recycleview的layoutmanager，主要用三种形式：LinearLayoutManager（线性）、 GridLayoutManager（网格） 、 StaggeredGridLayoutManager（瀑布流）
2.添加item动画 recyclerview.setItemAnimator(new DefaultItemAnimator()); //即使不设置,默认也是这个动画
3.添加条目间的分割线
public class RecyclerItemDivider extends RecyclerView.ItemDecoration {
private Drawable mDivider;
public RecyclerItemDivider(Context context) {
mDivider = context.getResources().getDrawable(R.drawable.favour_item_driver);
}
@Override
public void onDraw(Canvas c, RecyclerView parent) {
drawVertical(c, parent);
}
public void drawVertical(Canvas c, RecyclerView parent) {
final int left = parent.getPaddingLeft();
final int right = parent.getWidth() - parent.getPaddingRight();
final int childCount = parent.getChildCount();
for (int i = 0; i < childCount; i++) {
final View child = parent.getChildAt(i);
android.support.v7.widget.RecyclerView v = new android.support.v7.widget.RecyclerView(parent.getContext());
final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child
.getLayoutParams();
final int top = child.getBottom() + params.bottomMargin;
final int bottom = top + mDivider.getIntrinsicHeight();
mDivider.setBounds(left, top, right, bottom);
mDivider.draw(c);
}
}
@Override
public void getItemOffsets(Rect outRect, int itemPosition, RecyclerView parent) {
outRect.set(0, 0, 0, mDivider.getIntrinsicHeight());
}
}4.创建recycleView填充器
public class RouteAdapter extends RecyclerView.Adapter {
/**
* 全局上下文
*/
public Context mContext;
/**
* 是否显示加载更多
*/
public boolean isShowLoadMore = false;
/**
* 加载更多布局id
*/
public int loadMoreLayout = R.layout.recycler_view_load_more;
/**
* 正常显示数据的item布局
*/
public int itemLayout = R.layout.activity_route_item;
/**
* 数据源
*/
public List datas = null;
public OnItemClickListener onItemClickListener = null;
public RouteAdapter(Context context, List datas, OnItemClickListener onItemClickListener) {
this.mContext = context;
this.datas = datas;
this.onItemClickListener = onItemClickListener;
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(mContext).inflate(viewType, parent, false);
return new ViewHolder(mContext, v);
}
@Override
public void onBindViewHolder(ViewHolder holder, final int position) {
if (getItemViewType(position) != itemLayout) {
// 设置加载更多布局是否显示
if (getItemViewType(position) == loadMoreLayout) {
if (Config.isNetworkConnected(mContext)) {
holder.itemView.setVisibility(View.VISIBLE);
} else {
holder.itemView.setVisibility(View.GONE);
Config.showFiledToast((Activity) mContext);
}
}
return;
}
// 设置显示内容
holder.routeItemTitle.setText(datas.get(position).getStatusDesc());
holder.routeItemTime.setText(tipformatter.format(datas.get(position).getCreateTime() * 1000L));
holder.routeItemBook.setText(datas.get(position).getCar());
holder.routeItemCar.setText(datas.get(position).getLicensePlateNumber());
holder.routeItemAddress.setText(datas.get(position).getGetCarAddress());
// 设置显示颜色
showStatus(holder, datas.get(position).getStatus());
holder.routeItemRootRela.setOnRippleCompleteListener(new RippleView.OnRippleCompleteListener() {
@Override
public void onComplete(RippleView rippleView) {
if (datas != null && datas.size() > position) {
onItemClickListener.onItemClick(datas.get(position));
}
}
});
holder.itemView.setTag(datas.get(position));
}
@Override
public int getItemCount() {
if (datas != null && datas.size() > 0) {
if (isShowLoadMore)
return datas.size() + 1;
else
return datas.size();
}
return 0;
}
@Override
public int getItemViewType(int position) {
int viewType = itemLayout;
if (position == getItemCount() - 1 && isShowLoadMore) {
viewType = loadMoreLayout;
}
return viewType;
}
SimpleDateFormat tipformatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
class ViewHolder extends RecyclerView.ViewHolder {
public RippleView routeItemRootRela;
public TextView routeItemTitle;// 行程title
public TextView routeItemTime;// 行程时间
public TextView routeItemBook;// 预定车辆
public TextView routeItemCar;// 车牌
public TextView routeItemAddress;// 取车地点
public ViewHolder(final Context mContext, final View itemView) {
super(itemView);
routeItemRootRela = (RippleView) itemView.findViewById(R.id.route_item_root_rela);
routeItemTitle = (TextView) itemView.findViewById(R.id.route_item_title_text);
routeItemTime = (TextView) itemView.findViewById(R.id.route_item_time_text);
routeItemBook = (TextView) itemView.findViewById(R.id.route_item_book_content);
routeItemCar = (TextView) itemView.findViewById(R.id.route_item_car_content);
routeItemAddress = (TextView) itemView.findViewById(R.id.route_item_address_content);
}
}
// ############################## get set方法 ############################################
public void showStatus(ViewHolder holder, int status) {
// 已取消
if (status == OrderCommon.OrderFormStatus.renter_cancel_VALUE) {
holder.routeItemTitle.setTextColor(mContext.getResources().getColor(R.color.c4));
}
// 已完成
else if (status == OrderCommon.OrderFormStatus.order_finish_VALUE) {
holder.routeItemTitle.setTextColor(mContext.getResources().getColor(R.color.c3));
}
// 待取车、在用车、待支付
else if (status == OrderCommon.OrderFormStatus.wait_get_car_VALUE ||
status == OrderCommon.OrderFormStatus.using_car_VALUE ||
status == OrderCommon.OrderFormStatus.wait_pay_VALUE) {
holder.routeItemTitle.setTextColor(mContext.getResources().getColor(R.color.c8));
} else {
holder.routeItemTitle.setTextColor(mContext.getResources().getColor(R.color.c8));
}
}
/**
* adapter item 点击事件
*/
interface OnItemClickListener{
public abstract void onItemClick(TripCommon.TripListInfo tripListInfo);
}
public void setmContext(Context mContext) {
this.mContext = mContext;
}
public void setIsShowLoadMore(boolean isShowLoadMore) {
this.isShowLoadMore = isShowLoadMore;
}
public Context getmContext() {
return mContext;
}
public boolean isShowLoadMore() {
return isShowLoadMore;
}
} 5.自定义recycleview的条目点击事件，在adapter中实现OnItemClickListener监听接口，创建方法。并在recyclerview中实现该方法并通过adapter构造方法传入。
public OnItemClickListener onItemClickListener = new OnItemClickListener() {
@Override
public void onItemClick(TripCommon.TripListInfo tripListInfo) {
if (tripListInfo == null) {
showDefaultNetworkSnackBar();
return;
}
//完成点击事件方法
//。。。。。。
//。。。。。。
}
};6.为填充器设置属性动画
7.设置recycleview的滚动事件，主要用来添加上拉加载更多动作。
可以使用该该方法配合swipeRefreshLayout使用完成下拉刷新，上啦加载更多效果。
swipeRefreshLayout.setOnRefreshListener(this);
swipeRefreshLayout.setColorSchemeResources(R.color.c1, R.color.c1, R.color.c1);//设置滚动条颜色重写刷新方法
/**
* 下拉刷新执行的操作
*/
@Override
public void onRefresh() {
// 请求优惠券列表
if (Config.isNetworkConnected(mContext)) {
currentPage = 1;
mPageBuilder.setPageNo(currentPage);
loadData();
} else {
swipeRefreshLayout.setRefreshing(false);
showDefaultNetworkSnackBar();
}
}执行请求前：swipeRefreshLayout.setRefreshing(true);
执行请求后：swipeRefreshLayout.setRefreshing(false);
实现刷新样式布局
"http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.youyou.uuelectric.renter.UI.order.RouteActivity">
.support.v4.widget.SwipeRefreshLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/swipeRefreshLayout">
.support.v7.widget.RecyclerView
android:id="@+id/route_recyclerview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:clipToPadding="false"
android:paddingTop="@dimen/s3"
android:paddingLeft="@dimen/s3"
android:paddingRight="@dimen/s3"> .support.v7.widget.RecyclerView>
.support.v4.widget.SwipeRefreshLayout>