历史上的今天App

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历史上的今天
意义：通过输入日期获取网络新闻，已经搜索过的直接保存本地
布局搭建

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    tools:context="com.example.lesson13_5_databasecatch.MainActivity">    <LinearLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_gravity="center"        android:orientation="horizontal">        <EditText            android:id="@+id/et_date"            android:layout_width="0dp"            android:layout_height="wrap_content"            android:layout_weight="1"            android:text="请输入日期 MM-dd" />        <Button            android:id="@+id/btn"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="请求" />    </LinearLayout>    <ListView        android:id="@+id/lv"        android:layout_width="match_parent"

item布局

<?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:padding="10dp">    <TextView        android:id="@+id/tv_title"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:gravity="center"        android:lines="1"        android:text="标题"        android:textColor="@android:color/black"        android:textSize="18sp" />    <TextView        android:id="@+id/tv_time"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:gravity="right"        android:text="2017-08-24" />    <ImageView        android:id="@+id/pic"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:adjustViewBounds="true"        android:src="@mipmap/ic_launcher" />```**Model**<div class="se-preview-section-delimiter"></div>

package com.example.lesson13_5_databasecatch;

import android.util.Log;

import com.google.gson.Gson;

import java.io.IOException;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.FormBody;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;

/**
* Created by ASUS on 2017/8/24.
* berlin 2017/08/25
*/

public class Model {
public static final String URL = “http://route.showapi.com/119-42“;

public static final String APPID = "13074";public static final String SIGN = "ea5b4bf2e140498bb772d1bf2a51a7a0";public static void getHistoryToday(String date, final BeanCallback callback) {    //加入    OkHttpClient client = new OkHttpClient();    RequestBody body = null;    if (date == null) {        //当天        body = new FormBody.Builder().add("showapi_appid", APPID).add("showapi_sign", SIGN).build();    } else {        //历史数据（date）        body = new FormBody.Builder().add("showapi_appid", APPID).add("showapi_sign", SIGN).add("date", date).build();    }//请求网络    Request request = new Request.Builder().url(URL).post(body).build();    Call call = client.newCall(request);    //异步解析    call.enqueue(new Callback() {        @Override        public void onFailure(Call call, IOException e) {            Log.e("TAG", "-------网络请求异常");        }        @Override        public void onResponse(Call call, Response response) throws IOException {

// Log.e(“TAG”, “——-” + response.body().string());
Gson gson = new Gson();
//
TodayBean bean = gson.fromJson(response.body().string(), TodayBean.class);
Log.e(“TAG”, “———–” + bean.toString());

**TodayBean**<div class="se-preview-section-delimiter"></div>

package com.example.lesson13_5_databasecatch;

import java.util.List;

/**
* Created by ASUS on 2017/8/24.
*/

public class TodayBean {

@Overridepublic String toString() {    return "TodayBean{" +            "showapi_res_body=" + showapi_res_body +            ", showapi_res_code=" + showapi_res_code +            ", showapi_res_error='" + showapi_res_error + '\'' +            '}';}private ShowapiResBodyBean showapi_res_body;private int showapi_res_code;private String showapi_res_error;public ShowapiResBodyBean getShowapi_res_body() {    return showapi_res_body;}public void setShowapi_res_body(ShowapiResBodyBean showapi_res_body) {    this.showapi_res_body = showapi_res_body;}public int getShowapi_res_code() {    return showapi_res_code;}public void setShowapi_res_code(int showapi_res_code) {    this.showapi_res_code = showapi_res_code;}public String getShowapi_res_error() {    return showapi_res_error;}public void setShowapi_res_error(String showapi_res_error) {    this.showapi_res_error = showapi_res_error;}public static class ShowapiResBodyBean {    @Override    public String toString() {        return "ShowapiResBodyBean{" +                "ret_code=" + ret_code +                ", list=" + list +                '}';    }    private int ret_code;    private List<ListBean> list;    public int getRet_code() {        return ret_code;    }    public void setRet_code(int ret_code) {        this.ret_code = ret_code;    }    public List<ListBean> getList() {        return list;    }    public void setList(List<ListBean> list) {        this.list = list;    }    public static class ListBean {        @Override        public String toString() {            return "ListBean{" +                    "day=" + day +                    ", img='" + img + '\'' +                    ", month=" + month +                    ", title='" + title + '\'' +                    ", year='" + year + '\'' +                    '}';        }        private int day;        private String img;        private int month;        private String title;        private String year;        public int getDay() {            return day;        }        public void setDay(int day) {            this.day = day;        }        public String getImg() {            return img;        }        public void setImg(String img) {            this.img = img;        }        public int getMonth() {            return month;        }        public void setMonth(int month) {            this.month = month;        }        public String getTitle() {            return title;        }        public void setTitle(String title) {            this.title = title;        }        public String getYear() {            return year;        }        public void setYear(String year) {            this.year = year;        }    }}

}

**TodayOpenHelper**<div class="se-preview-section-delimiter"></div>

package com.example.lesson13_5_databasecatch;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;

/**
* Created by ASUS on 2017/8/24.
*/

public class TodayOpenHelper extends SQLiteOpenHelper {

public static final String DB_NAME = "databasecatch.db";public static final String TABLE_NAME = "history";public static final int VERSION = 1;public static final String ID = "_id";public static final String IMG = "_img";public static final String DAY = "_day";public static final String MONTH = "_month";public static final String YEAR = "_year";public static final String TITLE = "_title";//create table user()public static final String CREATE = "create table " + TABLE_NAME + "(" + ID + " integer primary key autoincrement," +        IMG + " text," +        DAY + " integer not null," +        MONTH + " integer not null," +        YEAR + " integer not null," +        TITLE + " text not null" +        ");";public TodayOpenHelper(Context context) {    super(context, DB_NAME, null, VERSION);}@Overridepublic void onCreate(SQLiteDatabase db) {    //db?? :(SQLiteDatabase db)    db.execSQL(CREATE);}@Overridepublic void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {}

}

**TodayDAO**<div class="se-preview-section-delimiter"></div>

import android.util.Log;

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

/**
* Created by ASUS on 2017/8/24.
*/

public class TodayDAO {
TodayOpenHelper helper;

public TodayDAO(Context context) {    helper = new TodayOpenHelper(context);}//读public List<TodayBean.ShowapiResBodyBean.ListBean> queryFormDate(int month, int day) {    SQLiteDatabase readableDatabase = helper.getReadableDatabase();    Cursor query = readableDatabase.query(TodayOpenHelper.TABLE_NAME, null, TodayOpenHelper.MONTH + "=? and " + TodayOpenHelper.DAY + "=?", new String[]{month + "", day + ""}, null, null, null);    List<TodayBean.ShowapiResBodyBean.ListBean> list = new ArrayList<>();    while (query.moveToNext()) {        String title = query.getString(query.getColumnIndex(TodayOpenHelper.TITLE));        String img = query.getString(query.getColumnIndex(TodayOpenHelper.IMG));        String year = query.getString(query.getColumnIndex(TodayOpenHelper.YEAR));        TodayBean.ShowapiResBodyBean.ListBean bean = new TodayBean.ShowapiResBodyBean.ListBean();        bean.setDay(day);        bean.setImg(img);        bean.setMonth(month);        bean.setYear(year);        bean.setTitle(title);        list.add(bean);    }    readableDatabase.close();    return list;}//存public void addBean(TodayBean.ShowapiResBodyBean.ListBean bean) {    //    SQLiteDatabase readableDatabase = helper.getReadableDatabase();    ContentValues values = new ContentValues();    values.put(TodayOpenHelper.DAY, bean.getDay());    values.put(TodayOpenHelper.MONTH, bean.getMonth());    values.put(TodayOpenHelper.YEAR, bean.getYear());    values.put(TodayOpenHelper.TITLE, bean.getTitle());    if (bean.getImg() != null) {        values.put(TodayOpenHelper.IMG, bean.getImg());    }    readableDatabase.insert(TodayOpenHelper.TABLE_NAME, null, values);    //关闭    readableDatabase.close();}public void addBeans(List<TodayBean.ShowapiResBodyBean.ListBean> beans) {    Log.e("TAG", "------------" + beans.toString());    //foreach 遍历bean 目录文件并添加    for (TodayBean.ShowapiResBodyBean.ListBean bean : beans) {        addBean(bean);    }}

}

**TodayAdapter**<div class="se-preview-section-delimiter"></div>

package com.example.lesson13_5_databasecatch;

import android.content.Context;
import android.text.TextUtils;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import com.bumptech.glide.Glide;

import java.util.List;

import butterknife.BindView;
import butterknife.ButterKnife;

/**
* Created by ASUS on 2017/8/25.
*/

public class TodayAdapter extends BaseAdapter {
Context context;
List

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