设置界面逻辑编写

作者：@kuaiquxie
作者的github：https://github.com/bitebita
本文为作者原创，如需转载，请注明出处：https://www.cnblogs.com/dzwj/p/15872261.html

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“关于”界面

package com.example.easycash;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;

public class AboutActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_about);
    }

    public void onClick(View view) {
        finish();
    }
}

 

历史记录界面

package com.example.easycash;

import androidx.appcompat.app.AppCompatActivity;

import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.TextView;

import com.example.easycash.adapter.AccountAdapter;
import com.example.easycash.db.AccountBean;
import com.example.easycash.db.DBManager;
import com.example.easycash.utils.CalendarDialog;

import java.util.ArrayList;
import java.util.Calendar;
import java.util.List;

public class HistoryActivity extends AppCompatActivity {
    ListView historyLv;
    TextView timeTv;

    List<AccountBean>mDatas;
    AccountAdapter adapter;
    int year,month;
    int dialogSelPos = -1;
    int dialogSelMonth = -1;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_history);
        historyLv = findViewById(R.id.history_lv);
        timeTv = findViewById(R.id.history_tv_time);
        mDatas = new ArrayList<>();
        // 设置适配器
        adapter = new AccountAdapter(this,mDatas);
        historyLv.setAdapter(adapter);
        initTime();
        timeTv.setText(year+"年"+month+"月");
        loadData(year,month);
        setLVClickListener();
    }
    /*设置ListView每一个item的长按事件*/
    private void setLVClickListener() {
        historyLv.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
            @Override
            public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
                AccountBean accountBean = mDatas.get(position);
                deleteItem(accountBean);
                return false;
            }
        });
    }

    private void deleteItem(final AccountBean accountBean) {
        final int delId = accountBean.getId();
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("提示信息").setMessage("您确定要删除这条记录么？")
                .setNegativeButton("取消",null)
                .setPositiveButton("确定", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        DBManager.deleteItemFromAccounttbById(delId);
                        mDatas.remove(accountBean);   //实时刷新，从数据源删除
                        adapter.notifyDataSetChanged();
                    }
                });
        builder.create().show();
    }

    /* 获取指定年份月份收支情况的列表*/
    private void loadData(int year,int month) {
        List<AccountBean> list = DBManager.getAccountListOneMonthFromAccounttb(year, month);
        mDatas.clear();
        mDatas.addAll(list);
        adapter.notifyDataSetChanged();
    }

    private void initTime() {
        Calendar calendar = Calendar.getInstance();
        year = calendar.get(Calendar.YEAR);
        month = calendar.get(Calendar.MONTH)+1;
    }

    public void onClick(View view) {
        switch (view.getId()) {
            case R.id.history_iv_back:
                finish();
                break;
            case R.id.history_iv_rili:
                CalendarDialog dialog = new CalendarDialog(this,dialogSelPos,dialogSelMonth);
                dialog.show();
                dialog.setDialogSize();
                dialog.setOnRefreshListener(new CalendarDialog.OnRefreshListener() {
                    @Override
                    public void onRefresh(int selPos, int year, int month) {
                        timeTv.setText(year+"年"+month+"月");
                        loadData(year,month);
                        dialogSelPos = selPos;
                        dialogSelMonth = month;
                    }
                });
                break;
        }
    }
}

 

 

package com.example.easycash;

import androidx.appcompat.app.AppCompatActivity;

import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;

import com.example.easycash.db.DBManager;

public class SettingActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_setting);
    }

    public void onClick(View view) {
        switch (view.getId()) {
            case R.id.setting_iv_back:
                finish();
                break;
            case R.id.setting_tv_clear:
                showDeleteDialog();
                break;
        }
    }

    private void showDeleteDialog() {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("删除提示")
                .setMessage("您确定要删除所有记录么？\n注意：删除后无法恢复，请慎重选择！")
                .setPositiveButton("取消",null)
                .setNegativeButton("确定", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        DBManager.deleteAllAccount();
                        Toast.makeText(SettingActivity.this,"删除成功！",Toast.LENGTH_SHORT).show();
                    }
                });
        builder.create().show();
    }
}