RecyclerView实现侧滑拖拽功能

2023-09-09 22:32:04 63

本文实例为大家分享了RecyclerView实现侧滑拖拽功能的具体代码，供大家参考，具体内容如下

准备

ItemDragListener

packageslideslipdrag;

importandroid.support.v7.widget.RecyclerView;

/**
*Createdon2018/7/22.
*
*@descItemDragListener
*/
publicinterfaceItemDragListener{
/**
*拖拽
*
*@paramviewHolderviewHolder
*/
voidonStartDrag(RecyclerView.ViewHolderviewHolder);
}

ItemTouchHelperAdapter

packageslideslipdrag;

/**
*@decs:ItemTouchHelperAdapter
*@date:2018/7/2213:23
*@version:v1.0
*/
publicinterfaceItemTouchHelperAdapter{
/**
*移动
*
*@paramfromPosition起始位
*@paramtoPosition终止位
*/
voidonItemMove(intfromPosition,inttoPosition);

/**
*侧滑结束
*
*@paramposition位置
*/
voidonItemSlideSlipEnd(intposition);
}

ItemTouchHelperViewHolder

packageslideslipdrag;

importandroid.content.Context;

/**
*@decs:ItemTouchHelperViewHolder
*@date:2018/7/2213:24
*@version:v1.0
*/
publicinterfaceItemTouchHelperViewHolder{
/**
*侧滑开始
*
*@paramcontext上下文
*/
voidonItemSlideSlipStart(Contextcontext);

/**
*侧滑停止
*
*@paramcontext上下文
*/
voidonItemSlideSlipStop(Contextcontext);
}

SimpleItemTouchHelperCallback

packageslideslipdrag;

importandroid.content.Context;
importandroid.graphics.Bitmap;
importandroid.graphics.BitmapFactory;
importandroid.graphics.Canvas;
importandroid.graphics.Paint;
importandroid.support.v4.content.ContextCompat;
importandroid.support.v7.widget.RecyclerView;
importandroid.support.v7.widget.helper.ItemTouchHelper;
importandroid.view.View;

importcom.self.zsp.dfs.R;

importutil.DensityUtils;

/**
*@decs:SimpleItemTouchHelperCallback
*@date:2018/7/2213:34
*@version:v1.0
*/
publicclassSimpleItemTouchHelperCallbackextendsItemTouchHelper.Callback{
privatefinalItemTouchHelperAdaptermAdapter;
privateContextcontext;
privatePaintpaint=newPaint();

publicSimpleItemTouchHelperCallback(ItemTouchHelperAdapteradapter,Contextcontext){
mAdapter=adapter;
this.context=context;
}

@Override
publicbooleanisLongPressDragEnabled(){
returnfalse;
}

@Override
publicbooleanisItemViewSwipeEnabled(){
returntrue;
}

@Override
publicintgetMovementFlags(RecyclerViewrecyclerView,RecyclerView.ViewHolderviewHolder){
//Enabledragupanddownandrightswipeinrightdirection
finalintdragFlags=ItemTouchHelper.UP|ItemTouchHelper.DOWN;
finalintswipeFlags=ItemTouchHelper.END;
//finalintswipeFlags=ItemTouchHelper.END|ItemTouchHelper.START;Enableswipeinbothdirection
returnmakeMovementFlags(dragFlags,swipeFlags);
}

@Override
publiclonggetAnimationDuration(RecyclerViewrecyclerView,intanimationType,floatanimateDx,floatanimateDy){
//returnanimationType==ItemTouchHelper.ANIMATION_TYPE_DRAG?DEFAULT_DRAG_ANIMATION_DURATION:DEFAULT_SWIPE_ANIMATION_DURATION;
returnanimationType==ItemTouchHelper.ANIMATION_TYPE_DRAG?DEFAULT_DRAG_ANIMATION_DURATION:350;
}

@Override
publicbooleanonMove(RecyclerViewrecyclerView,RecyclerView.ViewHoldersource,RecyclerView.ViewHoldertarget){
if(source.getItemViewType()!=target.getItemViewType()){
returnfalse;
}
//Notifytheadapterofthemove
mAdapter.onItemMove(source.getAdapterPosition(),target.getAdapterPosition());
returntrue;
}

@Override
publicvoidonChildDrawOver(Canvasc,RecyclerViewrecyclerView,RecyclerView.ViewHolderviewHolder,floatdX,floatdY,intactionState,booleanisCurrentlyActive){
super.onChildDrawOver(c,recyclerView,viewHolder,dX,dY,actionState,isCurrentlyActive);
}

@Override
publicvoidonSwiped(finalRecyclerView.ViewHolderviewHolder,inti){
//Notifytheadapterofthedismissal
mAdapter.onItemSlideSlipEnd(viewHolder.getAdapterPosition());
}

@Override
publicintgetBoundingBoxMargin(){
returnsuper.getBoundingBoxMargin();
}

@Override
publicvoidonChildDraw(finalCanvasc,RecyclerViewrecyclerView,RecyclerView.ViewHolderviewHolder,floatdX,floatdY,intactionState,booleanisCurrentlyActive){
super.onChildDraw(c,recyclerView,viewHolder,dX,dY,actionState,isCurrentlyActive);
//Fadeouttheviewasitisswipedoutoftheparent'sbounds
if(actionState==ItemTouchHelper.ACTION_STATE_SWIPE){
ViewitemView=viewHolder.itemView;
Bitmapicon;
if(dX>0){
icon=BitmapFactory.decodeResource(context.getResources(),R.drawable.delete);
//Setcolorforrightswipe
paint.setColor(ContextCompat.getColor(context,R.color.red));
//DrawRectwithvaryingrightside,equaltodisplacementdX
c.drawRect((float)itemView.getLeft()+DensityUtils.dpToPxFour(0),(float)itemView.getTop(),dX+DensityUtils.dpToPxFour(0),
(float)itemView.getBottom(),paint);
//Settheimageiconforrightswipe
c.drawBitmap(icon,(float)itemView.getLeft()+DensityUtils.dpToPxFour(16),(float)itemView.getTop()+
((float)itemView.getBottom()-(float)itemView.getTop()-icon.getHeight())/2,paint);
icon.recycle();
}
}
}

@Override
publicvoidonSelectedChanged(RecyclerView.ViewHolderviewHolder,intactionState){
if(actionState!=ItemTouchHelper.ACTION_STATE_IDLE){
//Lettheviewholderknowthatthisitemisbeingmovedordragged
ItemTouchHelperViewHolderitemViewHolder=(ItemTouchHelperViewHolder)viewHolder;
itemViewHolder.onItemSlideSlipStart(context);
}
super.onSelectedChanged(viewHolder,actionState);
/*finalbooleanswiping=actionState==ItemTouchHelper.ACTION_STATE_SWIPE;
swipeRefreshLayout.setEnabled(!swiping);*/
}

@Override
publicvoidclearView(RecyclerViewrecyclerView,RecyclerView.ViewHolderviewHolder){
super.clearView(recyclerView,viewHolder);
//Telltheviewholderit'stimetorestoretheidlestate
ItemTouchHelperViewHolderitemViewHolder=(ItemTouchHelperViewHolder)viewHolder;
itemViewHolder.onItemSlideSlipStop(context);

}

@Override
publicfloatgetMoveThreshold(RecyclerView.ViewHolderviewHolder){
/*returnsuper.getMoveThreshold(viewHolder);*/
return0.1f;
/*returnsuper.getMoveThreshold(0.5f);*/
}

@Override
publicfloatgetSwipeThreshold(RecyclerView.ViewHolderviewHolder){
/*if(viewHolderinstanceofRecyclerView.ViewHolder){
return1f;
}
returnsuper.getSwipeThreshold(viewHolder);*/
return0.9f;
}
}

使用

布局

适配器

packageadapter.parameterconfiguration;

importandroid.annotation.SuppressLint;
importandroid.content.Context;
importandroid.graphics.PorterDuff;
importandroid.support.annotation.NonNull;
importandroid.support.v4.content.ContextCompat;
importandroid.support.v7.widget.RecyclerView;
importandroid.view.LayoutInflater;
importandroid.view.MotionEvent;
importandroid.view.View;
importandroid.view.ViewGroup;
importandroid.widget.CheckBox;
importandroid.widget.ImageView;
importandroid.widget.LinearLayout;
importandroid.widget.TextView;

importcom.self.zsp.dfs.R;

importjava.util.ArrayList;
importjava.util.Collections;
importjava.util.List;

importentity.sync.Ground;
importbutterknife.BindView;
importbutterknife.ButterKnife;
importslideslipdrag.ItemDragListener;
importslideslipdrag.ItemTouchHelperAdapter;
importslideslipdrag.ItemTouchHelperViewHolder;
importutil.ToastUtils;

/**
*Createdon2018/6/27.
*
*@desc参数配置选择（地层）
*/
publicclassParaConfigChooseGroundAdapterextendsRecyclerView.AdapterimplementsView.OnClickListener,View.OnLongClickListener,ItemTouchHelperAdapter{
privateContextcontext;
privateListgroundList;
privateintviewStateReceive;
privateOnRecyclerViewItemClickListenermOnItemClickListener;
privateOnRecyclerViewItemLongClickListenermOnItemLongClickListener;
privatefinalItemDragListenerdragStartListener;
privateintselectPosition=-1;

/**
*constructor
*
*@paramcontext上下文
*@paramviewState视图状（0选择1无选择）
*@paramdragStartListener拖拽监听
*/
publicParaConfigChooseGroundAdapter(Contextcontext,intviewState,ItemDragListenerdragStartListener){
this.context=context;
this.dragStartListener=dragStartListener;
groundList=newArrayList<>();
viewStateReceive=viewState;
}

privatevoidsetSelectPosition(intselectPosition){
this.selectPosition=selectPosition;
}

publicvoidsetParaConfigChooseGroundData(Listlist){
this.groundList=list;
}

@Override
publicintgetItemCount(){
if(groundList!=null&&groundList.size()>0){
returngroundList.size();
}
return0;
}

@Override
publicvoidonClick(Viewv){
if(mOnItemClickListener!=null){
//MethodgetTagwhichgetdata.
mOnItemClickListener.onItemClick(v,(Ground)v.getTag());
}
}

@Override
publicbooleanonLongClick(Viewv){
if(mOnItemLongClickListener!=null){
//MethodgetTagwhichgetdata.
mOnItemLongClickListener.onItemLongClick(v,(Ground)v.getTag());
}
returntrue;
}

publicvoidsetOnItemClickListener(OnRecyclerViewItemClickListenerlistener){
this.mOnItemClickListener=listener;
}

publicvoidsetOnItemLongClickListener(OnRecyclerViewItemLongClickListenerlistener){
this.mOnItemLongClickListener=listener;
}

@NonNull
@Override
publicViewHolderonCreateViewHolder(@NonNullViewGroupparent,intviewType){
//inflate(R.layout.list_item_record,parent,false)不这么写则cardview不适宽
Viewview=LayoutInflater.from(context).inflate(R.layout.basic_config_choose_item,parent,false);
//为所创View注册点击事件
view.setOnClickListener(this);
view.setOnLongClickListener(this);
returnnewViewHolder(view);
}

@SuppressLint("ClickableViewAccessibility")
@Override
publicvoidonBindViewHolder(@NonNullfinalViewHolderholder,intposition){
finalGroundground=groundList.get(position);
//数据存itemView之Tag以便点获
holder.itemView.setTag(ground);
//值
holder.tvBasicConfigChoose.setText(ground.getDcmc());
switch(viewStateReceive){
case0:
//选否
if(selectPosition==position){
holder.cbBasicConfigChoose.setChecked(true);
}else{
holder.cbBasicConfigChoose.setChecked(false);
}
//CheckBox
holder.cbBasicConfigChoose.setOnClickListener(newView.OnClickListener(){
@Override
publicvoidonClick(Viewv){
if(selectPosition==holder.getAdapterPosition()){
//选则取消
setSelectPosition(-1);
mOnItemClickListener.onItemChoose(ground,false);
}else{
//未选则选
setSelectPosition(holder.getAdapterPosition());
mOnItemClickListener.onItemChoose(ground,true);
}
notifyDataSetChanged();
}
});
//ConvertView
holder.itemView.setOnClickListener(newView.OnClickListener(){
@Override
publicvoidonClick(Viewv){
if(selectPosition==holder.getAdapterPosition()){
//选则取消
setSelectPosition(-1);
mOnItemClickListener.onItemChoose(ground,false);
}else{
//未选则选
setSelectPosition(holder.getAdapterPosition());
mOnItemClickListener.onItemChoose(ground,true);
}
notifyDataSetChanged();
}
});
break;
case1:
holder.cbBasicConfigChoose.setVisibility(View.INVISIBLE);
holder.ivBasicConfigChoose.setVisibility(View.VISIBLE);
break;
default:
break;
}
holder.ivBasicConfigChoose.setOnTouchListener(newView.OnTouchListener(){
@Override
publicbooleanonTouch(Viewv,MotionEventevent){
switch(event.getAction()){
caseMotionEvent.ACTION_DOWN:
dragStartListener.onStartDrag(holder);
break;
default:
break;
}
returnfalse;
}
});
}

@Override
publicvoidonItemMove(intfromPosition,inttoPosition){
if(fromPositiontoPosition;i--){
Collections.swap(groundList,i,i-1);
}
}
notifyItemMoved(fromPosition,toPosition);
}

@Override
publicvoidonItemSlideSlipEnd(intposition){
Groundground=groundList.get(position);
switch(ground.getLocalAdd()){
case1:
notifyItemRemoved(position);
groundList.remove(position);
notifyItemRangeChanged(0,getItemCount());
ground.delete();
break;
default:
notifyItemRangeChanged(0,getItemCount());
ToastUtils.shortShow(context.getString(R.string.localMaintainedDataDeleteHint));
break;
}
}

publicinterfaceOnRecyclerViewItemClickListener{
/**
*短点
*
*@paramview视图
*@paramground数据
*/
voidonItemClick(Viewview,Groundground);

/**
*短点（选）
*
*@paramground数据
*@paramchoose选否
*/
voidonItemChoose(Groundground,booleanchoose);
}

publicinterfaceOnRecyclerViewItemLongClickListener{
/**
*长点
*
*@paramview视图
*@paramground数据
*/
voidonItemLongClick(Viewview,Groundground);
}

/**
*自定ViewHolder（持每Item页全元素）
*/
classViewHolderextendsRecyclerView.ViewHolderimplementsItemTouchHelperViewHolder{
@BindView(R.id.llBasicConfigChoose)
LinearLayoutllBasicConfigChoose;
@BindView(R.id.tvBasicConfigChoose)
TextViewtvBasicConfigChoose;
@BindView(R.id.ivBasicConfigChoose)
ImageViewivBasicConfigChoose;
@BindView(R.id.cbBasicConfigChoose)
CheckBoxcbBasicConfigChoose;

ViewHolder(finalViewview){
super(view);
ButterKnife.bind(this,view);
}

@Override
publicvoidonItemSlideSlipStart(Contextcontext){
llBasicConfigChoose.setBackgroundColor(ContextCompat.getColor(context,R.color.blue));
tvBasicConfigChoose.setTextColor(ContextCompat.getColor(context,R.color.background));
ivBasicConfigChoose.setColorFilter(ContextCompat.getColor(context,R.color.background),PorterDuff.Mode.SRC_IN);
}

@Override
publicvoidonItemSlideSlipStop(Contextcontext){
llBasicConfigChoose.setBackgroundColor(ContextCompat.getColor(context,R.color.background));
tvBasicConfigChoose.setTextColor(ContextCompat.getColor(context,R.color.fontInput));
ivBasicConfigChoose.setColorFilter(ContextCompat.getColor(context,R.color.blue),PorterDuff.Mode.SRC_IN);
}
}
}

主代码

packageadapter.parameterconfiguration;

importandroid.annotation.SuppressLint;
importandroid.content.Context;
importandroid.graphics.PorterDuff;
importandroid.support.annotation.NonNull;
importandroid.support.v4.content.ContextCompat;
importandroid.support.v7.widget.RecyclerView;
importandroid.view.LayoutInflater;
importandroid.view.MotionEvent;
importandroid.view.View;
importandroid.view.ViewGroup;
importandroid.widget.CheckBox;
importandroid.widget.ImageView;
importandroid.widget.LinearLayout;
importandroid.widget.TextView;

importcom.self.zsp.dfs.R;

importjava.util.ArrayList;
importjava.util.Collections;
importjava.util.List;

importentity.sync.Ground;
importbutterknife.BindView;
importbutterknife.ButterKnife;
importslideslipdrag.ItemDragListener;
importslideslipdrag.ItemTouchHelperAdapter;
importslideslipdrag.ItemTouchHelperViewHolder;
importutil.ToastUtils;

/**
*Createdon2018/6/27.
*
*@author郑少鹏
*@desc参数配置选择（地层）
*/
publicclassParaConfigChooseGroundAdapterextendsRecyclerView.AdapterimplementsView.OnClickListener,View.OnLongClickListener,ItemTouchHelperAdapter{
privateContextcontext;
privateListgroundList;
privateintviewStateReceive;
privateOnRecyclerViewItemClickListenermOnItemClickListener;
privateOnRecyclerViewItemLongClickListenermOnItemLongClickListener;
privatefinalItemDragListenerdragStartListener;
privateintselectPosition=-1;

/**
*constructor
*
*@paramcontext上下文
*@paramviewState视图状（0选择1无选择）
*@paramdragStartListener拖拽监听
*/
publicParaConfigChooseGroundAdapter(Contextcontext,intviewState,ItemDragListenerdragStartListener){
this.context=context;
this.dragStartListener=dragStartListener;
groundList=newArrayList<>();
viewStateReceive=viewState;
}

privatevoidsetSelectPosition(intselectPosition){
this.selectPosition=selectPosition;
}

publicvoidsetParaConfigChooseGroundData(Listlist){
this.groundList=list;
}

@Override
publicintgetItemCount(){
if(groundList!=null&&groundList.size()>0){
returngroundList.size();
}
return0;
}

@Override
publicvoidonClick(Viewv){
if(mOnItemClickListener!=null){
//MethodgetTagwhichgetdata.
mOnItemClickListener.onItemClick(v,(Ground)v.getTag());
}
}

@Override
publicbooleanonLongClick(Viewv){
if(mOnItemLongClickListener!=null){
//MethodgetTagwhichgetdata.
mOnItemLongClickListener.onItemLongClick(v,(Ground)v.getTag());
}
returntrue;
}

publicvoidsetOnItemClickListener(OnRecyclerViewItemClickListenerlistener){
this.mOnItemClickListener=listener;
}

publicvoidsetOnItemLongClickListener(OnRecyclerViewItemLongClickListenerlistener){
this.mOnItemLongClickListener=listener;
}

@NonNull
@Override
publicViewHolderonCreateViewHolder(@NonNullViewGroupparent,intviewType){
//inflate(R.layout.list_item_record,parent,false)不这么写则cardview不适宽
Viewview=LayoutInflater.from(context).inflate(R.layout.basic_config_choose_item,parent,false);
//为所创View注册点击事件
view.setOnClickListener(this);
view.setOnLongClickListener(this);
returnnewViewHolder(view);
}

@SuppressLint("ClickableViewAccessibility")
@Override
publicvoidonBindViewHolder(@NonNullfinalViewHolderholder,intposition){
finalGroundground=groundList.get(position);
//数据存itemView之Tag以便点获
holder.itemView.setTag(ground);
//值
holder.tvBasicConfigChoose.setText(ground.getDcmc());
switch(viewStateReceive){
case0:
//选否
if(selectPosition==position){
holder.cbBasicConfigChoose.setChecked(true);
}else{
holder.cbBasicConfigChoose.setChecked(false);
}
//CheckBox
holder.cbBasicConfigChoose.setOnClickListener(newView.OnClickListener(){
@Override
publicvoidonClick(Viewv){
if(selectPosition==holder.getAdapterPosition()){
//选则取消
setSelectPosition(-1);
mOnItemClickListener.onItemChoose(ground,false);
}else{
//未选则选
setSelectPosition(holder.getAdapterPosition());
mOnItemClickListener.onItemChoose(ground,true);
}
notifyDataSetChanged();
}
});
//ConvertView
holder.itemView.setOnClickListener(newView.OnClickListener(){
@Override
publicvoidonClick(Viewv){
if(selectPosition==holder.getAdapterPosition()){
//选则取消
setSelectPosition(-1);
mOnItemClickListener.onItemChoose(ground,false);
}else{
//未选则选
setSelectPosition(holder.getAdapterPosition());
mOnItemClickListener.onItemChoose(ground,true);
}
notifyDataSetChanged();
}
});
break;
case1:
holder.cbBasicConfigChoose.setVisibility(View.INVISIBLE);
holder.ivBasicConfigChoose.setVisibility(View.VISIBLE);
break;
default:
break;
}
holder.ivBasicConfigChoose.setOnTouchListener(newView.OnTouchListener(){
@Override
publicbooleanonTouch(Viewv,MotionEventevent){
switch(event.getAction()){
caseMotionEvent.ACTION_DOWN:
dragStartListener.onStartDrag(holder);
break;
default:
break;
}
returnfalse;
}
});
}

@Override
publicvoidonItemMove(intfromPosition,inttoPosition){
if(fromPositiontoPosition;i--){
Collections.swap(groundList,i,i-1);
}
}
notifyItemMoved(fromPosition,toPosition);
}

@Override
publicvoidonItemSlideSlipEnd(intposition){
Groundground=groundList.get(position);
switch(ground.getLocalAdd()){
case1:
notifyItemRemoved(position);
groundList.remove(position);
notifyItemRangeChanged(0,getItemCount());
ground.delete();
break;
default:
notifyItemRangeChanged(0,getItemCount());
ToastUtils.shortShow(context.getString(R.string.localMaintainedDataDeleteHint));
break;
}
}

publicinterfaceOnRecyclerViewItemClickListener{
/**
*短点
*
*@paramview视图
*@paramground数据
*/
voidonItemClick(Viewview,Groundground);

/**
*短点（选）
*
*@paramground数据
*@paramchoose选否
*/
voidonItemChoose(Groundground,booleanchoose);
}

publicinterfaceOnRecyclerViewItemLongClickListener{
/**
*长点
*
*@paramview视图
*@paramground数据
*/
voidonItemLongClick(Viewview,Groundground);
}

/**
*自定ViewHolder（持每Item页全元素）
*/
classViewHolderextendsRecyclerView.ViewHolderimplementsItemTouchHelperViewHolder{
@BindView(R.id.llBasicConfigChoose)
LinearLayoutllBasicConfigChoose;
@BindView(R.id.tvBasicConfigChoose)
TextViewtvBasicConfigChoose;
@BindView(R.id.ivBasicConfigChoose)
ImageViewivBasicConfigChoose;
@BindView(R.id.cbBasicConfigChoose)
CheckBoxcbBasicConfigChoose;

ViewHolder(finalViewview){
super(view);
ButterKnife.bind(this,view);
}

@Override
publicvoidonItemSlideSlipStart(Contextcontext){
llBasicConfigChoose.setBackgroundColor(ContextCompat.getColor(context,R.color.blue));
tvBasicConfigChoose.setTextColor(ContextCompat.getColor(context,R.color.background));
ivBasicConfigChoose.setColorFilter(ContextCompat.getColor(context,R.color.background),PorterDuff.Mode.SRC_IN);
}

@Override
publicvoidonItemSlideSlipStop(Contextcontext){
llBasicConfigChoose.setBackgroundColor(ContextCompat.getColor(context,R.color.background));
tvBasicConfigChoose.setTextColor(ContextCompat.getColor(context,R.color.fontInput));
ivBasicConfigChoose.setColorFilter(ContextCompat.getColor(context,R.color.blue),PorterDuff.Mode.SRC_IN);
}
}
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持毛票票。

RecyclerView实现侧滑拖拽功能

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