利用RecycleView实现类似ListView的Item点击，长按等操作事件以及点击后每一项在添加一个列表

        最近因为业务需求需要设计利用RecycleView实现类似ListView的Item点击，长按等操作事件以及点击后每一项在添加一个列表，偷懒不想写，网上找了一个（链接：http://blog.csdn.net/xiaowang900716/article/details/47037019），不适合新手，故自己写了一个，主要实现功能有单击添加一个下拉列表，同时可增加一个item，改变点击item的状态，长按弹出对话框，点击对话框的按钮操作Item，可实现增删改查等操作，同时可显示当时点即iten的不同状态（背景颜色），仅供参考；

         先看效果图，没美化，程序员的审美



       比较简单，直接上代码，，XML布局文件简单就补贴了，activity_main 里面就仿一个Recycleview，然后设置每一项的布局文件layout_item，

在最下面一定要添加一个容器，可以是

LinearLayout, RelativeLayout等，如下

<span style="font-size:18px;"><?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content">

<LinearLayout
......
</LinearLayout>

<LinearLayout
android:id="@+id/goneLayout"
android:background="#77ff0000"
android:layout_marginTop="20dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/linearLayout"
android:orientation="vertical">

</LinearLayout>

</android.support.v7.widget.CardView>
</span>

然后再来一个想要添加到Item下面的具体布局即可，你懂得


以下是实现的主业务代码，首先最主要的显示自定义的Adapter，

<span style="font-size:18px;">public class MyAdapter extends RecyclerView.Adapter<MyAdapter.MyViewHolder> {
private Context context;
private List<Item> mItemList;
private List<Item> data;
private TextView t4, t5, t6, t7;

public MyAdapter(Context context, List<Item> mItemList) {
this.context = context;
this.mItemList = mItemList;
}

@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {//此处模拟数据，具体实现可通过Adapter传递
data = new ArrayList<>();
data.add(new Item(111, "BBBBBBBBB", "OOOOOOOOOOOOOOO", true));
data.add(new Item(666, "BBBBBBBBB", "OOOOOOOOOOOOOOO", true));
data.add(new Item(666, "BBBBBBBBB", "OOOOOOOOOOOOOOO", false));
data.add(new Item(666, "BBBBBBBBB", "OOOOOOOOOOOOOOO", true));
data.add(new Item(666, "BBBBBBBBB", "OOOOOOOOOOOOOOO", false));
data.add(new Item(666, "BBBBBBBBB", "OOOOOOOOOOOOOOO", true));
data.add(new Item(666, "BBBBBBBBB", "OOOOOOOOOOOOOOO", false));
data.add(new Item(622266, "BBBBBBBBB", "OOOOOOOOOOOOOOO", true));
View inflate = LayoutInflater.from(context).inflate(R.layout.layout_item, parent, false);
return new MyViewHolder(inflate);
}

@Override
public void onBindViewHolder(MyViewHolder holder, int position) {
holder.t1.setText(mItemList.get(position).getIs() + "");
holder.t2.setText(mItemList.get(position).getName() + "");
holder.t3.setText(mItemList.get(position).getPass() + "");
if (mItemList.get(position).isGender()) {
holder.radioButton.setText("男");
holder.radioButton.setBackgroundColor(Color.RED);
} else {
holder.radioButton.setText("女");
holder.radioButton.setBackgroundColor(Color.YELLOW);
}
int pos = holder.getLayoutPosition();
holder.bind(pos);
holder.goneLayout.removeAllViewsInLayout();//设置recyccleView的每一项

for (int i = 0; i < data.size(); i++) {
//              要添加的每一项的布局文件，必须在循环内定义，否则报错
View inflate = LayoutInflater.from(context).inflate(R.layout.item, null);
inflate.setPadding(0,10,0,5);
t4 = (TextView) inflate.findViewById(R.id.textView4);
t5 = (TextView) inflate.findViewById(R.id.textView5);
t6 = (TextView) inflate.findViewById(R.id.textView6);
t7 = (TextView) inflate.findViewById(R.id.textView7);
t4.setText(data.get(i).getIs() + "     " + pos);
t5.setText(data.get(i).getName());
t6.setText(data.get(i).getPass() + "");
if (data.get(i).isGender()) {
t7.setText("OK");
t7.setBackgroundColor(Color.CYAN);
} else {
t7.setText("NOT");
t7.setBackgroundColor(Color.YELLOW);
}
holder.goneLayout.addView(inflate);//设置每一个item下面的动态添加布局
}
}

@Override
public int getItemCount() {
return mItemList.size();
}

private int opened = -1;

class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener, View.OnLongClickListener {
private TextView t1, t2, t3;
private TextView radioButton;
private LinearLayout goneLayout;

public MyViewHolder(View itemView) {
super(itemView);
t1 = (TextView) itemView.findViewById(R.id.textView);
t2 = (TextView) itemView.findViewById(R.id.textView2);
t3 = (TextView) itemView.findViewById(R.id.textView3);
radioButton = (TextView) itemView.findViewById(R.id.radioButton);
goneLayout = (LinearLayout) itemView.findViewById(R.id.goneLayout);//此为item下的布局容器

itemView.setOnClickListener(this);//设置单击事件
itemView.setOnLongClickListener(this);//设置长击击事件
}

public void bind(int pos) { // 此方法实现列表的展开和关闭

if (pos == opened)
goneLayout.setVisibility(View.VISIBLE);
else
goneLayout.setVisibility(View.GONE);
}

@Override
public void onClick(View v) {

if (opened == getAdapterPosition()) {//更改Item不同状态的属性
opened = -1;
mItemList.add(getAdapterPosition()+1, new Item(22222, "DDD", "sdsd", true));//具体业务的实现
notifyItemRangeChanged(getAdapterPosition(), getItemCount());//刷新Position之后的数据
v.setBackgroundColor(Color.YELLOW);
notifyItemChanged(getAdapterPosition());
} else {
int oldOpened = opened;
opened = getAdapterPosition();
notifyItemChanged(oldOpened);
v.setBackgroundColor(Color.RED);

notifyItemChanged(opened);//即时更新
}

}

@Override
public boolean onLongClick(final View v) {
new AlertDialog.Builder(v.getContext()).setTitle("SSSSS")
.setNegativeButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(v.getContext(), "mItemList.get(which):" + mItemList.get(getAdapterPosition()) + "JKL", Toast.LENGTH_SHORT).show();
v.setBackgrou
4000
ndColor(Color.MAGENTA);
}
})
.setPositiveButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
//                     具体业务实现
System.out.println(getAdapterPosition()+"");
mItemList.remove(getAdapterPosition());
notifyItemRangeChanged(getAdapterPosition(), getItemCount());//刷新Position之后的数据(删除)
}
}).setView(new EditText(v.getContext())).show();//显示dialog
return false;
}
}
}
</span>

      然后在MainActivity中初始化RecycleAdapter，用过的人都会的，

<span style="font-size:18px;">   LinearLayoutManager manager=new LinearLayoutManager(this);
manager.setOrientation(LinearLayoutManager.VERTICAL);
recyclerView.setLayoutManager(manager);
MyAdapter adapter=new MyAdapter(this,mItemList);
recyclerView.setAdapter(adapter);</span>

偶偶，完事。。。。。。。。。。。。。。。希望能帮助各位，望支持啊，谢谢

对了，Demo地址点击打开链接  欢迎光临