Android studio开发的体育场预约管理系统
可以注册登陆，有会员和管理员登陆，可以查看体育馆的场馆，个人中心，订单等等内容，如下图所示：









下载链接：https://download.csdn.net/download/weixin_43474701/20312245

显示效果：
java代码
genderGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener(){
public void onCheckedChanged(RadioGroup group,int chackedId){
if (femalButton.getId() == chackedId){
System.out.println("female");
Toast.makeText(Activity9.this,"famle",Toast.LENGTH_SHORT).show();
}
else if(maleButton.getId() == chackedId){
System.out.println("male");
}
}
});
这个监听是用来显示男女的，其中男女是单选只能在其中选择一个，不能选择两个
swimBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener(){
public void onCheckedChanged(CompoundButton buttonView,boolean isChecked){
if (isChecked){
System.out.println("swim is checked");
}
else {
System.out.println("swim is unchecked");
}
}
});
runBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener(){
public void onCheckedChanged(CompoundButton buttonView,boolean isChecked){
if (isChecked){
System.out.println("run is checked");
}
else{
System.out.println("run is unchecked");
}
}
});
readBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener(){
public void onCheckedChanged(CompoundButton buttonView,boolean isChecked){
if (isChecked){
System.out.println("read is checked");
}
else{
System.out.println("read is unchecked");
}
}
});
这三个判断是用来判断你选择的哪一个！这三个可以多选，当你选着其中任意一个的时候都会打印出一句话如一下效果

Android Studio期末作业，物流管理系统

实现了注册登录，录入物流信息，查询物流信息（资源链接在文章末尾）









资源下载链接：
https://download.csdn.net/download/weixin_43474701/20309948

首先，导入RecyclerView依赖库，选择对应的xml文件，在布局中添加RecyclerView。
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/rcv_vertical"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="8dp"
        android:overScrollMode="never"
        android:scrollbars="none"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="1.0"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.007" />
</androidx.constraintlayout.widget.ConstraintLayout>



之后，创建一个xml文件，并进行布局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="100dp"
    android:layout_margin="8dp"
    android:background="@android:color/darker_gray"
    android:orientation="vertical">

    <TextView
        android:id="@+id/tv_num"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="8dp"
        android:text="1" />

    <TextView
        android:id="@+id/tv_content"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="12dp"
        android:text="内容" />

</LinearLayout>


然后，在选中的Fragment文件中对RecyclerView进行初始化
public class weixinFragment extends Fragment {

    private RecyclerView recyclerView;
    private List<String> mList = new ArrayList<>();
    private Context context;
    private VerticalAdapter adapter;
    public weixinFragment() { }

    private void initData() {
        mList.add("TL");
        mList.add("LGC");
        mList.add("SUP");
        mList.add("MAD");
        mList.add("ITZ");
        mList.add("PSG");
        mList.add("UOL");
        mList.add("R7");
        mList.add("LGD");
        mList.add("V3");
        mList.add("SN");
        mList.add("G2");
        mList.add("MCX");
        mList.add("DWG");
        mList.add("JDG");
        mList.add("RGE");
        mList.add("GEN");
        mList.add("FNC");
        mList.add("TSM");
        mList.add("TES");
        mList.add("DRX");
        mList.add("FLY");
    }

    private void initView_1() {
        context=this.getActivity();
        VerticalAdapter adapter = new VerticalAdapter(context);
        RecyclerView rcvVertical = recyclerView.findViewById(R.id.rcv_vertical);
        LinearLayoutManager managerVertical = new LinearLayoutManager(context);
        managerVertical.setOrientation(LinearLayoutManager.VERTICAL);
        rcvVertical.setLayoutManager(managerVertical);
        rcvVertical.setHasFixedSize(true);
        rcvVertical.setAdapter(adapter);
        adapter.setVerticalDataList(mList);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.tab01, container, false);
        recyclerView=view.findViewById(R.id.rcv_vertical);
        initData();
        initView_1();
        return view;
    }
}

最后，对Adapter进行设置。
public class VerticalAdapter extends RecyclerView.Adapter<VerticalAdapter.VerticalViewHolder> {
    private static final String TAG = VerticalAdapter.class.getSimpleName();
    private Context mContext;
    private List<String> mList = new ArrayList<>();
    public VerticalAdapter(Context context) {
        mContext = context;
    }
    public void setVerticalDataList(List<String> list) {
        Log.d(TAG, "setVerticalDataList: " + list.size());
        mList = list;
        notifyDataSetChanged();
    }

    @NonNull
    @Override
    public VerticalViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(mContext).inflate(R.layout.vertical_recycle_item, parent, false);
        return new VerticalViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull VerticalViewHolder holder, int position) {
        holder.tvNum.setText(position + 1 + "");
        holder.tvContent.setText(mList.get(position));
    }

    @Override
    public int getItemCount() {
        return mList == null ? 0 : mList.size();
    }

    public class VerticalViewHolder extends RecyclerView.ViewHolder {
        TextView tvNum, tvContent;
        public VerticalViewHolder(View itemView) {
            super(itemView);
            tvNum = itemView.findViewById(R.id.tv_num);
            tvContent = itemView.findViewById(R.id.tv_content);
        }
    }
}

结果




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