家庭记账本4

MainActivity.java

1、通过Calender获取系统时间

  定义控件

private EditText et_date;

private Calendar calendar; // 通过Calendar获取系统时间

  在oncreate（）中初始化控件

et_date = view.findViewById(R.id.et_date);

calendar = Calendar.getInstance();

 点击”日期“按钮布局，设置日期

 et_date.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                new DatePickerDialog(MainActivity.this,
                        new DatePickerDialog.OnDateSetListener() {
                            @Override
                            public void onDateSet(DatePicker view, int year, int month, int day) {
                                // TODO Auto-generated method stub
                                mYear = year;
                                mMonth = month;
                                mDay = day;
                                // 更新EditText控件日期 小于10加0
                                et_date.setText(new StringBuilder()
                                        .append(mYear)
                                        .append("-")
                                        .append((mMonth + 1) < 10 ? "0"
                                                + (mMonth + 1) : (mMonth + 1))
                                        .append("-")
                                        .append((mDay < 10) ? "0" + mDay : mDay));
                            }
                        }, calendar.get(Calendar.YEAR), calendar
                        .get(Calendar.MONTH), calendar
                        .get(Calendar.DAY_OF_MONTH)).show();
            }
        });

2、点击添加弹出对话框

private void showDialog() {
        //创建对话框对象
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        //设置自定义对话框
        final AlertDialog dialog = builder.create();
        //点击对话框以外不会退出,但返回会退出
        dialog.setCanceledOnTouchOutside(false);
        //加载xml布局
        View view = View.inflate(this, R.layout.activity_add, null);
        //初始化控件
        et_money = view.findViewById(R.id.et_money);
        et_date = view.findViewById(R.id.et_date);
        calendar = Calendar.getInstance();
        // 点击"日期"按钮布局 设置日期
      /*  et_date.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                new DatePickerDialog(MainActivity.this,
                        new DatePickerDialog.OnDateSetListener() {
                            @Override
                            public void onDateSet(DatePicker view, int year, int month, int day) {
                                // TODO Auto-generated method stub
                                mYear = year;
                                mMonth = month;
                                mDay = day;
                                // 更新EditText控件日期 小于10加0
                                et_date.setText(new StringBuilder()
                                        .append(mYear)
                                        .append("-")
                                        .append((mMonth + 1) < 10 ? "0"
                                                + (mMonth + 1) : (mMonth + 1))
                                        .append("-")
                                        .append((mDay < 10) ? "0" + mDay : mDay));
                            }
                        }, calendar.get(Calendar.YEAR), calendar
                        .get(Calendar.MONTH), calendar
                        .get(Calendar.DAY_OF_MONTH)).show();
            }
*/
        });

        et_title = view.findViewById(R.id.et_title);
        RadioGroup type_group = view.findViewById(R.id.typegroup);
        Button tijiao = view.findViewById(R.id.tijiao);

        //将View对象加载到dialog上
        dialog.setView(view);
        //显示dialog
        dialog.show();

MyAdapter

class MyAdapter extends BaseAdapter {
        @Override
        //1.ListView的长度，即集合长度
        public int getCount() {
            return moneyInfoList.size();
        }

        //getItem(int position)和getItemId(int position)也必须重写（因为这是是BaseAdapter中的抽象方法），在调用ListView的响应方法的时候才会被调用到，这里不影响布局
        @Override
        public Object getItem(int position) {
            //根据索引获取当前集合里的对象
            return moneyInfoList.get(position);
        }

        @Override
        public long getItemId(int position) {
            //返回索引值
            return position;
        }

        //根据长度绘制item
        @Override
        public View getView(final int position, View convertView, ViewGroup parent) {
            //把布局文件转换成View对象
            //View.inflate加载xml布局，getApplicationContext() 上下文环境
            View view = View.inflate(getApplicationContext(), R.layout.activity_chaxun, null);
            //初始化
            TextView tv_money = view.findViewById(R.id.show_money);
            TextView tv_date = view.findViewById(R.id.show_date);
            TextView tv_title = view.findViewById(R.id.show_title);
            TextView tv_type = view.findViewById(R.id.show_type);
            ImageView iv_delete = view.findViewById(R.id.iv_delete);

            tv_money.setText(moneyInfoList.get(position).getMoney());
            tv_date.setText(moneyInfoList.get(position).getDate());
            tv_title.setText(moneyInfoList.get(position).getTitle());
            //获取到拦截模式并转换成int类型
            type = (moneyInfoList.get(position).getType());

            switch (type) {
                case "支出":
                    tv_type.setText("支出");
                    break;
                case "收入":
                    tv_type.setText("收入");
                    break;
            }
}