家庭记账本
这个项目是我完成的一个比较正规的android项目，本来老师是让假期在家里做的，结果我因有点事，到了后来才补上。当然这个项目也是我一行一行的跟着视频敲下来的项目。这个项目让我了解了adapter也解除了自定义软键盘书写以及一些接口调用的功能。
代码展示
package com.example.jishiben;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.text.method.HideReturnsTransformationMethod;
import android.text.method.PasswordTransformationMethod;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import com.example.jishiben.adapter.AccountAdapter;
import com.example.jishiben.db.AccountBean;
import com.example.jishiben.db.DBManager;
import com.example.jishiben.utils.BudgetDialog;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.List;
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
ListView todayLv;//展示今日收支情况的ListView
//声明数据源
List<AccountBean> mDatas;
AccountAdapter adapter;
int year,month,day;
//头布局相关控件
View headerView;
TextView topOutTv,topInTv,topBudgetTv,topConTv;
ImageView topShowIv;
private List<AccountBean> accountListOneDayFromAccounttb;
ImageView searchIv;
ImageButton moreBtn;
Button editBtn;
SharedPreferences preferences;
@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
addLVHeadView();
mDatas = new ArrayList<>();
//设置适配器加载每一行数据列表
adapter = new AccountAdapter(this, mDatas);
todayLv.setAdapter(adapter);
}
private void initView() {
todayLv = findViewById(R.id.main_lv);
searchIv = findViewById(R.id.main_iv_search);
editBtn = findViewById(R.id.main_btn_edit);
moreBtn = findViewById(R.id.main_btn_more);
searchIv.setOnClickListener(this);
editBtn.setOnClickListener(this);
moreBtn.setOnClickListener(this);
setLVLongClickListener();
}
//长按删除某条记录
private void setLVLongClickListener() {
todayLv.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
@Override
public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
if(position==0){//点击了头布局
return false;
}
int pos = position-1;
AccountBean clickBean = mDatas.get(pos);//获取正在被点击的这条信息
// int click_id = clickBean.getId();
//弹出提示用户是否删除的对话框
showDeleteItemDialog(clickBean);
return false;
}
});
}
private void showDeleteItemDialog(final AccountBean clickBean) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("提示信息").setMessage("您确定删除这条记录吗？")
.setNegativeButton("取消",null)
.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
int click_id = clickBean.getId();
//执行被删除的操作
DBManager.deleteFromAccounttbById(click_id);
mDatas.remove(clickBean);//实时刷新，在listView中移除被删除的对象
adapter.notifyDataSetChanged();//提示适配器刷新
setTopTvShow();//改变头布局显示的内容
}
});
builder.create().show();//显示对话框
}
//给listview添加头布局的方法
private void addLVHeadView() {
//将布局转化成view对象
headerView = getLayoutInflater().inflate(R.layout.item_mainlv_top,null);
todayLv.addHeaderView(headerView);
//查找头布局可用控件
topOutTv = headerView.findViewById(R.id.item_mainlv_top_tv_out);
topInTv = headerView.findViewById(R.id.item_mainlv_top_tv_in);
topBudgetTv = headerView.findViewById(R.id.item_mainlv_top_tv_budget);
topConTv = headerView.findViewById(R.id.item_mainlv_top_day);
topShowIv = headerView.findViewById(R.id.item_mainlv_top_iv_hide);
topBudgetTv.setOnClickListener(this);
headerView.setOnClickListener(this);
topShowIv.setOnClickListener(this);
}
//获取今日的具体时间
private void initTime(){
Calendar calendar = Calendar.getInstance();
year = calendar.get(Calendar.YEAR);
month = calendar.get(Calendar.MONTH)+1;
day = calendar.get(Calendar.DAY_OF_MONTH);
}
//当Activity获取焦点时调用的方法
@Override
protected void onResume() {
super.onResume();
loadDBData();
setTopTvShow();
}
//设置头布局当中的文本显示
private void setTopTvShow() {
//获取今日支出和收入的总金额，显示在view中
float intcomeOneDay = DBManager.getSumMoneyOneDay(year,month,day,1);
float outcomeOneDay = DBManager.getSumMoneyOneDay(year,month,day,0);
String infoOneDay = "今日支出 ￥"+outcomeOneDay+"，今日收入￥"+intcomeOneDay;
topConTv.setText(infoOneDay);
//获取本月收入和支出金额
float incomeOneMonth = DBManager.getSumMoneyOneMonth(year,month,1);
float outcomeOneMonth = DBManager.getSumMoneyOneMonth(year,month,0);
topInTv.setText("￥"+incomeOneMonth);
topOutTv.setText("￥"+outcomeOneMonth);
//设置显示剩余money
float bmoney = preferences.getFloat("bmoney",0);//预算
if(bmoney ==0){
topBudgetTv.setText("￥ 0");
}else{
float syMoney = bmoney-outcomeOneMonth;
topBudgetTv.setText("￥"+syMoney);
}
}
private void loadDBData() {
List<AccountBean> list = DBManager.getAccountListOneDayFromAccounttb(year, month, day);
mDatas.clear();
mDatas.addAll(list);
adapter.notifyDataSetChanged();
}
//布局相关的点击事件
@Override
public void onClick(View v) {
switch (v.getId()){
case R.id.main_iv_search:
Intent it = new Intent(this,SearchActivity.class);
startActivity(it);
break;
case R.id.main_btn_edit:
Intent it1 = new Intent(this,RecordActivity.class);
startActivity(it1);
break;
case R.id.main_btn_more:
MoreDialog moreDialog = new MoreDialog(this);
moreDialog.show();
moreDialog.setDialogSize();
break;
case R.id.item_mainlv_top_tv_budget:
showBudgetDialog();
break;
case R.id.item_mainlv_top_iv_hide:
//切换textview明文和密文
toggleShow();
break;
}
if(v==headerView){
//头布局被点击了
Intent intent = new Intent();
intent.setClass(this,MonthChartActivity.class);
startActivity(intent);
}
}
//显示运算设置对话框
private void showBudgetDialog() {
BudgetDialog dialog = new BudgetDialog(this);
dialog.show();
dialog.setDialogSize();
dialog.setOnEnsureListener(new BudgetDialog.OnEnsureListener() {
@Override
public void onEnsure(float money) {
//将预算金额写入到共享参数中进行存储
SharedPreferences.Editor editor = preferences.edit();
editor.putFloat("bmoney",money);
editor.commit();
//计算剩余金额
float outcomeOneMonth = DBManager.getSumMoneyOneMonth(year,month,0);
float syMoney = money-outcomeOneMonth;
topBudgetTv.setText("￥"+syMoney);
}
});
}
boolean isShow = true;
//点击头部眼睛是如果原来是明文就加密，密文就显示
private void toggleShow() {
if(isShow){//明文--->密文
PasswordTransformationMethod passwordTransformationMethod = PasswordTransformationMethod.getInstance();
topInTv.setTransformationMethod(passwordTransformationMethod);
topOutTv.setTransformationMethod(passwordTransformationMethod);
topBudgetTv.setTransformationMethod(passwordTransformationMethod);
topShowIv.setImageResource(R.mipmap.ih_hide);
isShow = false;//设置标志位为隐藏状态
}else {//密文---->明文
HideReturnsTransformationMethod hideMethod = HideReturnsTransformationMethod.getInstance();
topInTv.setTransformationMethod(hideMethod);
topOutTv.setTransformationMethod(hideMethod);
topBudgetTv.setTransformationMethod(hideMethod);
topShowIv.setImageResource(R.mipmap.ih_show);
isShow = true;
}
}
}