activity_main.xml
<?xml version="1.0" encoding="utf-8"?> <androidx.coordinatorlayout.widget.CoordinatorLayout 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"> <com.google.android.material.appbar.AppBarLayout android:layout_height="wrap_content" android:layout_width="match_parent" android:theme="@style/AppTheme.AppBarOverlay"> <androidx.appcompat.widget.Toolbar android:id="@+id/toolbar" android:layout_width="match_parent" android:layout_height="?attr/actionBarSize" android:background="?attr/colorPrimary" app:popupTheme="@style/AppTheme.PopupOverlay" /> </com.google.android.material.appbar.AppBarLayout> <include layout="@layout/content_main"/> <!-- <Button--> <!-- android:id="@+id/btn_add_in"--> <!-- android:layout_width="wrap_content"--> <!-- android:layout_height="wrap_content"--> <!-- android:layout_gravity="bottom|start"--> <!-- android:text="收入"--> <!-- app:srcCompat="@android:drawable/ic_input_add" />--> <!-- <Button--> <!-- android:id="@+id/btn_add_out"--> <!-- android:layout_width="wrap_content"--> <!-- android:layout_height="wrap_content"--> <!-- android:layout_gravity="bottom"--> <!-- android:text="支出"--> <!-- android:layout_marginLeft="90dp" />--> <!-- <Button--> <!-- android:id="@+id/btn_delete"--> <!-- android:layout_width="wrap_content"--> <!-- android:layout_height="wrap_content"--> <!-- android:layout_gravity="bottom"--> <!-- android:text="删除"--> <!-- android:layout_marginLeft="180dp" />--> <!-- <Button--> <!-- android:id="@+id/btn_delete_all"--> <!-- android:layout_width="wrap_content"--> <!-- android:layout_height="wrap_content"--> <!-- android:layout_gravity="bottom|end"--> <!-- android:text="清空账单"/>--> <!-- <TextView--> <!-- android:id="@+id/tv_cost_total"--> <!-- android:layout_width="wrap_content"--> <!-- android:layout_height="wrap_content"--> <!-- android:layout_marginTop="60dp"--> <!-- android:textSize="15dp"--> <!-- android:text="账户余额:0"/>--> <!-- <TextView--> <!-- android:layout_width="wrap_content"--> <!-- android:layout_height="wrap_content"--> <!-- android:layout_gravity="bottom|end"--> <!-- android:layout_marginBottom="50dp"--> <!-- android:textSize="10dp"--> <!-- android:text=""/>--> </androidx.coordinatorlayout.widget.CoordinatorLayout>
MainActivity.java
package com.example.family; import android.content.DialogInterface; import android.content.Intent; import android.database.Cursor; import android.os.Bundle; import com.google.android.material.floatingactionbutton.FloatingActionButton; import com.google.android.material.snackbar.Snackbar; import androidx.annotation.Nullable; import androidx.appcompat.app.AlertDialog; import androidx.appcompat.app.AppCompatActivity; import androidx.appcompat.widget.Toolbar; import android.os.PersistableBundle; import android.renderscript.Sampler; import android.view.LayoutInflater; import android.view.View; import android.view.Menu; import android.view.MenuItem; import android.widget.Button; import android.widget.DatePicker; import android.widget.EditText; import android.widget.ListView; import android.widget.RadioButton; import android.widget.RadioGroup; import android.widget.TextView; import android.widget.Toast; import java.io.Serializable; import java.util.ArrayList; import java.util.List; public class MainActivity extends AppCompatActivity { private List<CostBean> mCostBeanList; private DatabaseHelper mDatabaseHelper; private CostListAdapter mAdapter; private TextView costTotal; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Toolbar toolbar = findViewById(R.id.toolbar); setSupportActionBar(toolbar); mDatabaseHelper = new DatabaseHelper(this); mCostBeanList = new ArrayList<>(); ListView costList = (ListView) findViewById(R.id.lv_main); initCostData(); System.out.println("**********"+mCostBeanList); mAdapter =new CostListAdapter(this,mCostBeanList); costList.setAdapter(mAdapter); Button btn_add_in =findViewById(R.id.btn_add_in); btn_add_in.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { AlertDialog.Builder builder=new AlertDialog.Builder(MainActivity.this); LayoutInflater inflater=LayoutInflater.from(MainActivity.this); View viewDialog=inflater.inflate(R.layout.new_cost_data,null); final EditText title=(EditText)viewDialog.findViewById(R.id.et_cost_title); final EditText money=(EditText)viewDialog.findViewById(R.id.et_cost_money); final DatePicker date=(DatePicker) viewDialog.findViewById(R.id.dp_cost_date); builder.setView(viewDialog); builder.setTitle("添加收入"); builder.setPositiveButton("确认", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { final CostBean costBean=new CostBean(); costBean.costTitle=title.getText().toString(); costBean.costDate=date.getYear() + "-" + (date.getMonth()+1) + "-" + date.getDayOfMonth(); costBean.costMoney="+"+money.getText().toString(); mDatabaseHelper.insertCost(costBean); mCostBeanList.add(costBean); mAdapter.notifyDataSetChanged(); String string_total_cost="账户余额:"+mDatabaseHelper.countTotalCost(); costTotal =findViewById(R.id.tv_cost_total); costTotal.setText(string_total_cost); } }); builder.setNegativeButton("取消",null); builder.create().show(); } }); /** * 支出 */ Button btn_add_out =findViewById(R.id.btn_add_out); btn_add_out.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { AlertDialog.Builder builder=new AlertDialog.Builder(MainActivity.this); LayoutInflater inflater=LayoutInflater.from(MainActivity.this); View viewDialog=inflater.inflate(R.layout.new_cost_data,null); final EditText title=(EditText)viewDialog.findViewById(R.id.et_cost_title); final EditText money=(EditText)viewDialog.findViewById(R.id.et_cost_money); final DatePicker date=(DatePicker) viewDialog.findViewById(R.id.dp_cost_date); builder.setView(viewDialog); builder.setTitle("添加支出"); builder.setPositiveButton("确认", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { final CostBean costBean=new CostBean(); costBean.costTitle=title.getText().toString(); costBean.costDate=date.getYear() + "-" + (date.getMonth()+1) + "-" + date.getDayOfMonth(); costBean.costMoney="-"+money.getText().toString(); mDatabaseHelper.insertCost(costBean); mCostBeanList.add(costBean); mAdapter.notifyDataSetChanged(); String string_total_cost="账户余额:"+mDatabaseHelper.countTotalCost(); costTotal =findViewById(R.id.tv_cost_total); costTotal.setText(string_total_cost); } }); builder.setNegativeButton("取消",null); builder.create().show(); } }); /* 删除 */ Button btn_delete = findViewById(R.id.btn_delete); btn_delete.setOnClickListener(new View.OnClickListener(){ @Override public void onClick(View view) { AlertDialog.Builder builder=new AlertDialog.Builder(MainActivity.this); LayoutInflater inflater=LayoutInflater.from(MainActivity.this); View viewDialog=inflater.inflate(R.layout.delete_cost_data,null); final EditText title=(EditText)viewDialog.findViewById(R.id.et_cost_title); builder.setView(viewDialog); builder.setTitle("删除账单"); builder.setPositiveButton("删除", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { CostBean costBean =new CostBean(); costBean.costTitle=title.getText().toString(); mDatabaseHelper.deleteCost(costBean); mCostBeanList.clear(); initCostData(); mAdapter.notifyDataSetChanged(); String string_total_cost="账户余额:"+mDatabaseHelper.countTotalCost(); costTotal =findViewById(R.id.tv_cost_total); costTotal.setText(string_total_cost); } }); builder.setNegativeButton("取消",null); builder.create().show(); } }); /* 清除账单 */ Button btn_delete_all =findViewById(R.id.btn_delete_all); btn_delete_all.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { AlertDialog.Builder builder=new AlertDialog.Builder(MainActivity.this); builder.setPositiveButton("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { mDatabaseHelper.deleteAllData(); mCostBeanList.clear(); mAdapter.notifyDataSetChanged(); String string_total_cost="账户余额:"+mDatabaseHelper.countTotalCost(); costTotal =findViewById(R.id.tv_cost_total); costTotal.setText(string_total_cost); } }); builder.setNegativeButton("取消",null); builder.setMessage("确定要清除所有账单吗？"); builder.setTitle("提示"); builder.create().show(); } }); /* 计算余额 */ } /* 初始化表单 */ private void initCostData() { Cursor cursor=mDatabaseHelper.getAllCostData(); if(cursor!=null){ while(cursor.moveToNext()){ CostBean costBean=new CostBean(); costBean.costTitle=cursor.getString(cursor.getColumnIndex("cost_title")); costBean.costDate=cursor.getString(cursor.getColumnIndex("cost_date")); costBean.costMoney=cursor.getString(cursor.getColumnIndex("cost_money")); mCostBeanList.add(costBean); String string_total_cost="账户余额:"+mDatabaseHelper.countTotalCost(); costTotal =findViewById(R.id.tv_cost_total); costTotal.setText(string_total_cost); } cursor.close(); } } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.menu_main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { int id = item.getItemId(); if (id == R.id.action_chart) { Intent intent=new Intent(MainActivity.this,ChartsActivity.class); intent.putExtra("cost_list", (Serializable) mCostBeanList); startActivity(intent); return true; } return super.onOptionsItemSelected(item); } }