class ExampleActivity extends Activity {
  @BindView(R.id.title) TextView title;
  @BindView(R.id.subtitle) TextView subtitle;
  @BindView(R.id.footer) TextView footer;

  @Override public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.simple_activity);
    ButterKnife.bind(this);
    // TODO Use fields...
  }
}

@RunWith(AndroidJUnit4.class)
public class ExampleInstrumentedTest {
    public static final String TAG = "ExampleInstrumentedTest";
    @Test
    public void DBTest(){

        DbUtils db = DbUtils.create(this);
        User user = new User(); //这里需要注意的是User对象必须有id属性，或者有通过@ID注解的属性
        user.setEmail("wyouflf@qq.com");
        user.setName("wyouflf");
        db.save(user); // 使用saveBindingId保存实体时会为实体的id赋值

        //...
        // 查找
        Parent entity = db.findById(Parent.class, parent.getId());
        List<Parent> list = db.findAll(Parent.class);//通过类型查找

        Parent Parent = db.findFirst(Selector.from(Parent.class).where("name","=","test"));

        // IS NULL
        Parent Parent = db.findFirst(Selector.from(Parent.class).where("name","=", null));
        // IS NOT NULL
        Parent Parent = db.findFirst(Selector.from(Parent.class).where("name","!=", null));

        // WHERE id<54 AND (age>20 OR age<30) ORDER BY id LIMIT pageSize OFFSET pageOffset
        List<Parent> list = db.findAll(Selector.from(Parent.class)
                                           .where("id" ,"<", 54)
                                           .and(WhereBuilder.b("age", ">", 20).or("age", " < ", 30))
                                           .orderBy("id")
                                           .limit(pageSize)
                                           .offset(pageSize * pageIndex));

        // op为"in"时，最后一个参数必须是数组或Iterable的实现类(例如List等)
        Parent test = db.findFirst(Selector.from(Parent.class).where("id", "in", new int[]{1, 2, 3}));
        // op为"between"时，最后一个参数必须是数组或Iterable的实现类(例如List等)
        Parent test = db.findFirst(Selector.from(Parent.class).where("id", "between", new String[]{"1", "5"}));

        DbModel dbModel = db.findDbModelAll(Selector.from(Parent.class).select("name"));//select("name")只取出name列
        List<DbModel> dbModels = db.findDbModelAll(Selector.from(Parent.class).groupBy("name").select("name", "count(name)"));
        //...

        List<DbModel> dbModels = db.findDbModelAll(sql); // 自定义sql查询
        db.execNonQuery(sql); // 执行自定义sql
        //...

    }
 }

package com.bb.zinglibrary;

import java.util.List;

import retrofit2.http.GET;
import rx.Observable;

/**
 * Created by zing on 2016/12/5.
 */

public interface Hahahaha {
    @GET("/")
    Observable<List<String>> baidu();
}

package com.bb.zinglibrary;

import android.content.Context;
import android.support.test.InstrumentationRegistry;
import android.support.test.runner.AndroidJUnit4;
import android.util.Log;

import com.bb.zinglibrary.http.RequestCallback;
import com.bb.zinglibrary.http.HttpUtil;
import com.bb.zinglibrary.http.http_client.DefaultOkHttpClient;

import org.junit.Test;
import org.junit.runner.RunWith;

import okhttp3.CookieJar;
import okhttp3.OkHttpClient;

import static org.junit.Assert.*;

/**
 * Instrumentation test, which will execute on an Android device.
 *
 * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
 */
@RunWith(AndroidJUnit4.class)
public class ExampleInstrumentedTest {
    public static final String TAG = "ExampleInstrumentedTest";

   @Test
    public void HttpTest() throws Exception {
        // Context of the app under test.
       Context appContext = InstrumentationRegistry.getTargetContext();

       CookieJar cookieJar = DefaultOkHttpClient.getDefaultCookieJar(appContext);

       HttpUtil httpUtil = HttpUtil.getInstance();

       RequestCallback<String> callback = new RequestCallback<String>() {
           @Override
           public void onStart() {
               Log.i("LoginActivity", "onStart: ");
           }

           @Override
           public void onResponse(String o) {
               Log.i(TAG, "onResponse: ");
           }

           @Override
           public void onError(Throwable e) {
               Log.e("LoginActivity", "onError: ", e);
           }

           @Override
           public void onCompleted() {
               Log.i(TAG, "onCompleted:");           }
       };

       OkHttpClient client = DefaultOkHttpClient.getOkHttpClient(true, appContext, null, cookieJar);

       Hahahaha hahahaha = httpUtil.buildNormRequest("http://www.baidu.com", Hahahaha.class, client);

       httpUtil.addCallBack(hahahaha.baidu(), callback);
    }
}