昨天建立了数据库，并且完成了记录支出功能，今天首先完成了与其对应的收入功能。

这是对数据库操作的代码，将数据插入数据库，实现添加操作

/*
    * 获取记账表中某一天所有支出或收入情况
    * */
    public static List<AccountBean> getAccountOneDayFromAccounttb(int year,int month,int day){
        List<AccountBean> list = new ArrayList<>();
        String sql="select * from accounttb where year =? and month =? and day =? order by id desc";
        Cursor cursor = db.rawQuery(sql,new String[]{year+"",month+"",day+""});
        //遍历符合要求的每一行数据
        while(cursor.moveToNext()){
            int id = cursor.getInt(cursor.getColumnIndex("id"));
            String typename=cursor.getString(cursor.getColumnIndex("typename"));
            String beizhu=cursor.getString(cursor.getColumnIndex("beizhu"));
            String time = cursor.getString(cursor.getColumnIndex("time"));
            int simageId=cursor.getInt(cursor.getColumnIndex("simageId"));
            int kind=cursor.getInt(cursor.getColumnIndex("kind"));
            float money = cursor.getFloat(cursor.getColumnIndex("money"));
            AccountBean accountBean = new AccountBean(id,typename,simageId,beizhu,money,time,year,month,day,kind);
            list.add(accountBean);
        }
        return list;
    }

实现支出和收入功能之后，在主界面看不到自己记录的信息，所以要将记录的信息进行显示，在MainActivity中定义方法，进行显示。

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initTime();
        initView();
        preferences = getSharedPreferences("budget", Context.MODE_PRIVATE);
        //添加ListView的头布局
        addLVHeaderView();
        mDatas = new ArrayList<>();
        //设置适配器，加载每一行数据到列表中
        adapter=new AccountAdapter(this,mDatas);
        todayLv.setAdapter(adapter);
    }

    //初始化自带方法
    private void initView() {
        todayLv=findViewById(R.id.main_lv);
        editBtn=findViewById(R.id.main_btn_edit);
        moreBtn=findViewById(R.id.main_btn_more);
        searchIv=findViewById(R.id.main_iv_search);
        editBtn.setOnClickListener(this);
        moreBtn.setOnClickListener(this);
        searchIv.setOnClickListener(this);
        setLVLongClickListener();
    }

实现这个功能之后，接下来便是长按删除功能（按照个人习惯来的），同样是在MainActivity中定义方法

//设置ListView的长按事件
    private void setLVLongClickListener() {
        todayLv.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
            @Override
            public boolean onItemLongClick(AdapterView<?> adapterView, View view, int i, long l) {
                if(i==0){
                    return false;
                }
                int pos = i-1;
                AccountBean clickBean = mDatas.get(pos);
                //弹出提示用户删除的对话框
                showDeleteItemDialog(clickBean);
                return false;
            }
        });
    }

//弹出删除对话框
private void showDeleteItemDialog(final AccountBean clickBean) {
    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setTitle("提示信息").setMessage("你确定删除这条记录吗？")
            .setNegativeButton("取消",null)
            .setPositiveButton("确定", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialogInterface, int i) {
                    int click_id = clickBean.getId();
                    //执行删除的操作
                    DBManger.deleteItemFromAccounttbById(click_id);
                    mDatas.remove(clickBean);//实时刷新，移出集合当中的对象
                    adapter.notifyDataSetChanged();//提示适配器更新数据
                    setTopTvShow();//改变头布局Textview显示的内容
                }
            });
    builder.create().show();//显示对话框
}

在主界面完成界面设计之后，同样要在数据库中将数据删除，在DBManger中定义删除方法，这里根据记录的id进行删除

//根据传入的id，删除数据库中accounttb表中的数据
    public static int deleteItemFromAccounttbById(int id){
        int i = db.delete("accounttb","id=?",new String[]{id+""});
        return i;
    }

 

这里忘记一个功能，就是在记账的时候，要添加备注，由于这是一个弹出窗口，首先利用该方法使窗口与屏幕自适应

 //设置dialog尺寸和屏幕尺寸一致
    public void setDialogSize(){
        //获取当前窗口对象
        Window window = getWindow();
        //获取窗口对象参数
        WindowManager.LayoutParams wlp = window.getAttributes();
        //获取屏幕宽度
        Display d = window.getWindowManager().getDefaultDisplay();
        wlp.width=d.getWidth();//对话框窗口为屏幕窗口
        wlp.gravity= Gravity.BOTTOM;
        window.setBackgroundDrawableResource(android.R.color.transparent);
        window.setAttributes(wlp);
    }

接下来便是数据的输入与软键盘的弹出，确定与取消按键

import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.Display;
import android.view.Gravity;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;

import com.example.bookeep.R;

public class BeiZhuDialog extends Dialog implements View.OnClickListener {

    EditText et;
    Button cancelbtn,ensurebtn;
    OnEnsureListener onEnsureListener;

    //设置回调接口
    public void setOnEnsureListener(OnEnsureListener onEnsureListener) {
        this.onEnsureListener = onEnsureListener;
    }

    public BeiZhuDialog(@NonNull Context context){
        super(context);
    }

    @Override
    protected void onCreate(Bundle savedInstanceState){
        super.onCreate(savedInstanceState);
        setContentView(R.layout.dialog_beizhu);//设置对话显示布局
        et = findViewById(R.id.dialog_beizhu_et);
        cancelbtn=findViewById(R.id.dialog_beizhu_btn_cancel);
        ensurebtn=findViewById(R.id.dialog_beizhu_btn_ensure);
        cancelbtn.setOnClickListener(this);
        ensurebtn.setOnClickListener(this);
    }

    public interface OnEnsureListener{
        public void onEnsure();
    }

    @Override
    public void onClick(View view) {
        switch(view.getId()){
            case R.id.dialog_beizhu_btn_cancel:
                cancel();
                break;
            case R.id.dialog_beizhu_btn_ensure:
                if(onEnsureListener!=null){
                    onEnsureListener.onEnsure();
                }
                break;
        }
    }

    //获取输入数据
    public String getEditText(){
        return et.getText().toString().trim();
    }
    Handler handler = new Handler(){
        @Override
        public void handleMessage(@Nullable Message msg){
            //自动弹出软键盘
            InputMethodManager inputMethodManager = (InputMethodManager) getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
            inputMethodManager.toggleSoftInput(0,InputMethodManager.HIDE_NOT_ALWAYS);
        }
    };
}

 

 

 首先进行时间页面的书写

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="@color/white">
    <DatePicker
        android:id="@+id/dialog_time_dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/input_time"
        android:padding="10dp"/>
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:padding="10dp">
        <EditText
            android:id="@+id/dialog_time_et_hour"
            android:layout_width="60dp"
            android:layout_height="wrap_content"
            android:inputType="number"
            android:maxLength="2"/>
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text=" : "
            android:textSize="20dp"
            android:textStyle="bold"/>
        <EditText
            android:id="@+id/dialog_time_et_minute"
            android:layout_width="60dp"
            android:layout_height="wrap_content"
            android:inputType="number"
            android:maxLength="2"/>
    </LinearLayout>
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="right"
        android:orientation="horizontal">
        <Button
            android:id="@+id/dialog_time_btn_cancel"
            android:layout_width="80dp"
            android:layout_height="wrap_content"
            android:text="@string/cancel"
            android:textColor="@color/green_006400"
            android:background="@null"
            android:layout_marginRight="20dp"/>
        <Button
            android:id="@+id/dialog_time_btn_ensure"
            android:layout_width="80dp"
            android:layout_height="wrap_content"
            android:text="@string/ensure"
            android:textColor="@color/green_006400"
            android:background="@null"
            android:layout_marginRight="20dp"/>
    </LinearLayout>

</LinearLayout>

//对时间进行设置，并与其他后台与前台代码组装

import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.EditText;

import androidx.annotation.NonNull;

import com.example.bookeep.R;

//在记录页面弹出对话框
public class SelectTimeDialog extends Dialog implements View.OnClickListener {

    EditText hourEt,minuteEt;
    DatePicker datePicker;
    Button ensureBtn,cancelBtn;
    public interface OnEnsureListener{
        public void onEnsure(String time,int year,int month,int day);
    }
    OnEnsureListener onEnsureListener;
    public void setOnEnsureListener(OnEnsureListener onEnsureListener){
        this.onEnsureListener = onEnsureListener;
    }

    public SelectTimeDialog(@NonNull Context context){
        super(context);
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.dialog_time);
        hourEt=findViewById(R.id.dialog_time_et_hour);
        minuteEt=findViewById(R.id.dialog_time_et_minute);
        datePicker=findViewById(R.id.dialog_time_dp);
        ensureBtn=findViewById(R.id.dialog_time_btn_ensure);
        cancelBtn=findViewById(R.id.dialog_time_btn_cancel);
        ensureBtn.setOnClickListener(this);//添加点击监听事件
        cancelBtn.setOnClickListener(this);
        hideDatePickerHeader();
    }

    @Override
    public void onClick(View view) {
        switch (view.getId()){
            case R.id.dialog_time_btn_cancel:
                cancel();
                break;
            case R.id.dialog_time_btn_ensure:
                int year = datePicker.getYear();//选择年份
                int month = datePicker.getMonth()+1;
                int dayofMonth=datePicker.getDayOfMonth();
                String monthStr = String.valueOf(month);
                if(month<10){
                    monthStr="0"+month;
                }
                String dayStr = String.valueOf(dayofMonth);
                if(dayofMonth<10){
                    dayStr="0"+dayofMonth;
                }
                //获取输入的小时和分钟
                String hourStr = hourEt.getText().toString();
                String minuteStr = minuteEt.getText().toString();
                int hour = 0;
                if(!TextUtils.isEmpty(hourStr)){
                    hour=Integer.parseInt(hourStr);
                    hour=hour%24;
                }
                int minute=0;
                if(!TextUtils.isEmpty(minuteStr)){
                    minute=Integer.parseInt(minuteStr);
                    minute=minute%60;
                }
                hourStr=String.valueOf(hour);
                minuteStr=String.valueOf(minute);
                if(hour<10){
                    hourStr="0"+hour;
                }
                if(minute<10){
                    minuteStr="0"+minute;
                }
                String timeFormat=year+"年"+monthStr+"月"+dayStr+"日"+hourStr+":"+minuteStr;
                if(onEnsureListener!=null){
                    onEnsureListener.onEnsure(timeFormat,year,month,dayofMonth);
                }
                cancel();
                break;
        }
    }

    //隐藏DatePicker头布局
    private void hideDatePickerHeader(){
        ViewGroup rootView = (ViewGroup) datePicker.getChildAt(0);
        if(rootView==null){
            return;
        }
        View headerView = rootView.getChildAt(0);
        if(headerView == null){
            return;
        }
        //5.0+
        int headerId = getContext().getResources().getIdentifier("day_picker_selector_layout","id","android");
        if(headerId==headerView.getId()){
            headerView.setVisibility(View.GONE);
            ViewGroup.LayoutParams layoutParamsRoot = rootView.getLayoutParams();
            layoutParamsRoot.width=ViewGroup.LayoutParams.WRAP_CONTENT;
            rootView.setLayoutParams(layoutParamsRoot);

            ViewGroup animator = (ViewGroup) rootView.getChildAt(1);
            ViewGroup.LayoutParams layoutParamsAnimator = animator.getLayoutParams();
            layoutParamsAnimator.width=ViewGroup.LayoutParams.WRAP_CONTENT;
            animator.setLayoutParams(layoutParamsAnimator);

            View child = animator.getChildAt(0);
            ViewGroup.LayoutParams layoutParamsChild = child.getLayoutParams();
            layoutParamsAnimator.width = ViewGroup.LayoutParams.WRAP_CONTENT;
            child.setLayoutParams(layoutParamsChild);
            return;
        }

        //6.0+
        headerId = getContext().getResources().getIdentifier("data_picker_header","id","android");
        if(headerId == headerView.getId()){
            headerView.setVisibility(View.GONE);
        }
    }
}

目前实现了支出和收入的功能，并且能够设置时间和备注，明天将会实现搜索等功能。