布局文件activity_main
在layout下定义一个message.xml布局文件,用来显示RecyclerView里的文字,跟listview的意义差不多
写一个MyItemOnClickListener接口用来监听点击事件,在里边传入两个参数,第一个是试图,第二是点击的下标
publicinterfaceMyItemOnClickListener{
voidonClick(Viewview,intposition);
}
RecyclerView的适配器类
//RecyclerView.Adapter里写的是优化继承ViewHolder的帮助类 publicclassViewAdapterextendsRecyclerView.Adapter{ privateContextmContext; /** *特别注意一下mList后面一定要默认赋值,不然运行的时候会报错,因为我们默认上面的RecyclerView是没有添加数据的 */ privateList mList=newArrayList<>(); privateMyItemOnClickListenermyItemOnClickListener; publicViewAdapter(Contextcontext){ this.mContext=context; } //传数组的方法 publicvoidsetMessage(List list){ this.mList=list; } //写个方法把接口传过来 publicvoidsetMyItemOnClickListener(MyItemOnClickListenermyItemOnClickListener) { this.myItemOnClickListener=myItemOnClickListener; } @Override publicMyViewHolderonCreateViewHolder(ViewGroupparent,intviewType){ //打气筒填充我们自定义的message.xml的试图 Viewview=View.inflate(mContext,R.layout.messgae,null); //优化 finalMyViewHolderholder=newMyViewHolder(view); //监听 view.setOnClickListener(newView.OnClickListener(){ @Override publicvoidonClick(Viewv){ //调用我们自定义接口的方法 myItemOnClickListener.onClick(v,holder.getLayoutPosition()); } }); returnholder; } @Override publicvoidonBindViewHolder(MyViewHolderholder,intposition){ MyViewHolderviewHolder=holder; viewHolder.textView.setText(mList.get(position)); } @Override publicintgetItemCount(){ returnmList.size(); } //ViewHolder优化 staticclassMyViewHolderextendsRecyclerView.ViewHolder{ privateTextViewtextView; publicMyViewHolder(ViewitemView){ super(itemView); textView=(TextView)itemView.findViewById(R.id.textView); } } }
在MainActivity的实现
publicclassMainActivityextendsAppCompatActivity{
privateRecyclerViewrecyclerView_up;
privateRecyclerViewrecyclerView_down;
privateListlistUp=newArrayList<>();
privateListlistDown=newArrayList<>();
privateViewAdapteradapterUp;
privateViewAdapteradapterDown;
@Override
protectedvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//添加数据
initData();
initView();
}
//添加数据
for(inti=0;i<15;i++){
//默认的我们只给下面的RecyclerView添加了数据
listDown.add("频道管理"+i);
}
}
privatevoidinitView(){
recyclerView_up=(RecyclerView)findViewById(R.id.recyclerView_up);
recyclerView_down=(RecyclerView)findViewById(R.id.recyclerView_down);
initUp();
initDown();
}
privatevoidinitUp(){
//创建适配器
adapterUp=newViewAdapter(MainActivity.this);
//添加数据,我们默认创建的时候是空的
adapterUp.setMessage(listUp);
recyclerView_up.setAdapter(adapterUp);
//RecyclerView显示样式
GridLayoutManagergridLayoutManagerUp=newGridLayoutManager(this,3);
recyclerView_up.setLayoutManager(gridLayoutManagerUp);
//点击监听
adapterUp.setMyItemOnClickListener(newMyItemOnClickListener(){
@Override
publicvoidonClick(Viewview,intposition){
Log.e("Up","上"+position);
//下面的RecyclerView添加当前点击的条目信息并刷新数组
listDown.add(listUp.get(position));
adapterDown.setMessage(listDown);
adapterDown.notifyDataSetChanged();
//从当前数组移除数据并刷新数组
listUp.remove(position);
adapterUp.setMessage(listUp);
adapterUp.notifyDataSetChanged();
}
});
}
privatevoidinitDown(){
adapterDown=newViewAdapter(MainActivity.this);
adapterDown.setMessage(listDown);
recyclerView_down.setAdapter(adapterDown);
GridLayoutManagergridLayoutManagerDown=newGridLayoutManager(this,3);
recyclerView_down.setLayoutManager(gridLayoutManagerDown);
adapterDown.setMyItemOnClickListener(newMyItemOnClickListener(){
@Override
publicvoidonClick(Viewview,intposition){
Log.e("Down","下"+position);
//下面的RecyclerView添加当前点击的条目信息并刷新数组
listUp.add(listDown.get(position));
adapterUp.setMessage(listUp);
adapterUp.notifyDataSetChanged();
//从当前数组移除数据并刷新数组
listDown.remove(position);
adapterDown.setMessage(listDown);
adapterDown.notifyDataSetChanged();
}
});
}
}
以上所述是小编给大家介绍的AndroidRecyclerView仿新闻头条的频道管理功能，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对毛票票网站的支持！