今日总结

2021年2月8日：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:background="@color/grey_f3f3f3">
    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="50dp">
        <ImageView
            android:id="@+id/record_iv_back"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:src="@mipmap/ih_error"
            android:onClick="onClick"
            android:layout_marginLeft="10dp"/>
        <com.google.android.material.tabs.TabLayout
            android:id="@+id/record_tabs"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_centerHorizontal="true"
            app:tabGravity="center"
            app:tabMode="fixed"
            app:tabTextColor="@color/grey_7D7D7D"
            app:tabSelectedTextColor="@color/black"
            app:tabIndicatorColor="@color/black"/>
    </RelativeLayout>
    <androidx.viewpager.widget.ViewPager
        android:id="@+id/record_vp"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>
</LinearLayout>

 适配器：

package com.example.jiatingruanjian.adapter;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentPagerAdapter;

import java.util.List;

public class RecordPagerAdapter extends FragmentPagerAdapter {
    List<Fragment>fragmentList;
    String[]titles = {"支出","收入"};
    public RecordPagerAdapter(@NonNull FragmentManager fm,List<Fragment>fragmentList) {
        super(fm);
        this.fragmentList = fragmentList;
    }

    @NonNull
    @Override
    public Fragment getItem(int position) {
        return fragmentList.get(position);
    }

    @Override
    public int getCount() {
        return fragmentList.size();
    }

    @Nullable
    @Override
    public CharSequence getPageTitle(int position) {
        return titles[position];
    }
}


RecordActivity:

package com.example.jiatingruanjian;
import android.os.Bundle;
import android.view.View;
import androidx.appcompat.app.AppCompatActivity;
import androidx.fragment.app.Fragment;
import androidx.viewpager.widget.ViewPager;
import com.example.jiatingruanjian.adapter.RecordPagerAdapter;
import com.example.jiatingruanjian.frag_record.IncomeFragment;
import com.example.jiatingruanjian.frag_record.OutcomeFragment;
import com.google.android.material.tabs.TabLayout;
import java.util.ArrayList;
import java.util.List;
public class RecordActivity extends AppCompatActivity {
    TabLayout tabLayout;
    ViewPager viewPager;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_record);
        //1.查找控件
        tabLayout = findViewById(R.id.record_tabs);
        viewPager = findViewById(R.id.record_vp);
        //2.设置ViewPager加载页面
        initPager();
    }

    private void initPager() {
//        初始化ViewPager页面的集合
        List<Fragment>fragmentList = new ArrayList<>();
//        创建收入和支出页面，放置在Fragment当中
        OutcomeFragment outFrag = new OutcomeFragment(); //支出
        IncomeFragment inFrag = new IncomeFragment(); //收入
        fragmentList.add(outFrag);
        fragmentList.add(inFrag);

//        创建适配器
        RecordPagerAdapter pagerAdapter = new RecordPagerAdapter(getSupportFragmentManager(), fragmentList);
//        设置适配器
        viewPager.setAdapter(pagerAdapter);
        //将TabLayout和ViwePager进行关联
        tabLayout.setupWithViewPager(viewPager);
    }

    /* 点击事件*/
    public void onClick(View view) {
        switch (view.getId()) {
            case R.id.record_iv_back:
                finish();
                break;
        }
    }
}

Seacher.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:background="@color/grey_f3f3f3">
    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="50dp">
        <ImageView
            android:id="@+id/search_iv_back"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:onClick="onClick"
            android:layout_marginLeft="10dp"
            android:src="@mipmap/it_back"/>
        <EditText
            android:id="@+id/search_et"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_toRightOf="@id/search_iv_back"
            android:background="@drawable/dialog_btn_bg"
            android:layout_centerVertical="true"
            android:textSize="16sp"
            android:paddingTop="10dp"
            android:paddingBottom="10dp"
            android:paddingLeft="20dp"
            android:layout_marginLeft="10dp"
            android:hint="@string/please_search_info">
            <requestFocus/>
        </EditText>
        <ImageView
            android:id="@+id/search_iv_sh"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@mipmap/search"
            android:layout_alignParentRight="true"
            android:layout_centerVertical="true"
            android:layout_marginRight="20dp"
            android:onClick="onClick"/>
    </RelativeLayout>
    <ListView
        android:id="@+id/search_lv"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:dividerHeight="6dp"
        android:divider="@color/grey_f3f3f3"
        />
    <TextView
        android:id="@+id/search_tv_empty"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/date_empty"
        android:gravity="center"
        android:textSize="20sp"
        android:drawableTop="@mipmap/it_searchtext"
        android:layout_marginTop="250dp"/>

</LinearLayout>

SeacherActivity:

package com.example.jiatingruanjian;

import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

import com.example.jiatingruanjian.adapter.AccountAdapter;
import com.example.jiatingruanjian.db.AccountBean;
import com.example.jiatingruanjian.db.DBManager;

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


public class SearchActivity extends AppCompatActivity {
    ListView searchLv;
    EditText searchEt;
    TextView emptyTv;
    List<AccountBean> mDatas;   //数据源
    AccountAdapter adapter;    //适配器对象
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_search);
        initView();
        mDatas = new ArrayList<>();
        adapter = new AccountAdapter(this,mDatas);
        searchLv.setAdapter(adapter);
        searchLv.setEmptyView(emptyTv);   //设置无数局时，显示的控件
    }

    private void initView() {
        searchEt = findViewById(R.id.search_et);
        searchLv = findViewById(R.id.search_lv);
        emptyTv = findViewById(R.id.search_tv_empty);
    }

    public void onClick(View view) {
        switch (view.getId()) {
            case R.id.search_iv_back:
                finish();
                break;
            case R.id.search_iv_sh:   //执行搜索的操作
                String msg = searchEt.getText().toString().trim();
//                判断输入内容是否为空，如果为空，就提示不能搜索
                if (TextUtils.isEmpty(msg)) {
                    Toast.makeText(this,"输入内容不能为空！",Toast.LENGTH_SHORT).show();
                    return;
                }
                //开始搜索
                List<AccountBean> list = DBManager.getAccountListByRemarkFromAccounttb(msg);
                mDatas.clear();
                mDatas.addAll(list);
                adapter.notifyDataSetChanged();
                break;
        }
    }
}