Xutils

Xutils框架说明：
xUtils 包含了orm, http(s), image, view注解, 但依然很轻量级(246K), 并且特性强大, 方便扩展:
稳定的基石: AbsTask和统一的回调接口Callback, 任何异常, 即使你的回调方法实现有异常都会进入onError, 任何情况下onFinished总会让你知道任务结束了.
基于高效稳定的orm工具, http模块得以更方便的实现cookie(支持domain, path, expiry等特性)和缓存(支持Cache-Control, Last-Modified, ETag等特性)的支持.
有了强大的http及其下载缓存的支持, image模块的实现相当的简洁, 并且支持回收被view持有, 但被Mem Cache移除的图片, 减少页面回退时的闪烁…
view注解模块仅仅400多行代码却灵活的支持了各种View注入和事件绑定, 包括拥有多了方法的listener的支持.
官方地址：https://github.com/wyouflf/xUtils3
Xutils框架作用：
构建快速互联网开发中小型项目基石，gradle部署，一行代码解决项目中的网络请求，图片加载，本地缓存以及注解查询控件等功能，基于XUtils可实现咨询项目，电商项目，社区项目的快速开发上线。
注解的理解：
注解（Annotation） 为我们在代码中添加信息提供了一种形式化的方法，是我们可以在稍后某个时刻方便地使用这些数据（通过 解析注解 来使用这些数据），常见的作用有以下几种：
生成文档。这是最常见的，也是java 最早提供的注解。常用的有@see @param @return 等
跟踪代码依赖性，实现替代配置文件功能。比较常见的是spring 2.5 开始的基于注解配置。作用就是减少配置。现在的框架基本都使用了这种配置来减少配置文件的数量。也是
在编译时进行格式检查。如@override 放在方法前，如果你这个方法并不是覆盖了超类方法，则编译时就能检查出。
实现代码

package com.example.day_01;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.RadioGroup;
import android.widget.Toast;

import org.xutils.view.annotation.ContentView;
import org.xutils.view.annotation.Event;
import org.xutils.x;

@ContentView(R.layout.activity_view)
public  class ViewActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        x.view().inject(this);
    }

    @Event(value = R.id.click,type = View.OnClickListener.class)
    private void click(View view){
        Toast.makeText(this, "普通点击", Toast.LENGTH_SHORT).show();
    }
    @Event(value = R.id.longclick,type = View.OnLongClickListener.class)
    private boolean longclick(View view){
        Toast.makeText(this, "长按点击", Toast.LENGTH_SHORT).show();
        return false;
    }
    @Event(value = R.id.checkbox,type = CheckBox.OnCheckedChangeListener.class)
    private void checkbox(CompoundButton buttonView, boolean isChecked){
        if (isChecked){
            Toast.makeText(this, "选择了", Toast.LENGTH_SHORT).show();
        }else {
            Toast.makeText(this, "取消了", Toast.LENGTH_SHORT).show();
        }
    }
}

package com.example.day_01;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;

import org.xutils.common.Callback;
import org.xutils.http.RequestParams;
import org.xutils.view.annotation.ContentView;
import org.xutils.view.annotation.Event;
import org.xutils.x;

@ContentView(R.layout.activity_http)
public  class HttpActivity extends Activity {
    private static final String GETURL = "http://www.qubaobei.com/ios/cf/dish_list.php?stage_id=1&limit=10&page=1";
    private static final String POSTURL = "http://www.kuaidi100.com/query";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        x.view().inject(this);
    }
    @Event(value = {R.id.btn_get,R.id.btn_post},type = View.OnClickListener.class)
    private void click(View view){
        switch (view.getId()){
            case R.id.btn_get:
                Get();
                break;
            case R.id.btn_post:
                Post();
                break;
        }
    }

    private void Post() {
        RequestParams requestParams = new RequestParams(POSTURL);
        requestParams.addBodyParameter("type","zhongtong");
        requestParams.addBodyParameter("postid","543495422389");
        x.http().post(requestParams, new Callback.CommonCallback<String>() {
            @Override
            public void onSuccess(String result) {

            }

            @Override
            public void onError(Throwable ex, boolean isOnCallback) {

            }

            @Override
            public void onCancelled(CancelledException cex) {

            }

            @Override
            public void onFinished() {

            }
        });
    }

    private void Get() {
        RequestParams requestParams = new RequestParams(GETURL);
        x.http().get(requestParams, new Callback.CommonCallback<String>() {
            @Override
            public void onSuccess(final String result) {
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        Toast.makeText(HttpActivity.this, ""+result, Toast.LENGTH_SHORT).show();
                    }
                });
            }

            @Override
            public void onError(Throwable ex, boolean isOnCallback) {
                        ex.getStackTrace();
            }

            @Override
            public void onCancelled(CancelledException cex) {

            }

            @Override
            public void onFinished() {

            }
        });
        
    }
}

package com.example.day_01;

import android.app.Activity;
import android.graphics.drawable.AnimationDrawable;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;

import org.xutils.view.annotation.ContentView;
import org.xutils.x;

@ContentView(R.layout.activity_draw)
public class DrawActivity extends Activity implements View.OnClickListener {
    private Button satrt;
    private Button stop;
    private ImageView img;
    AnimationDrawable animationDrawable;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        x.view().inject(this);
        initView();
        animationDrawable = new AnimationDrawable();
        animationDrawable.addFrame(getResources().getDrawable(R.mipmap.progress_loading_image_01),50);
        animationDrawable.addFrame(getResources().getDrawable(R.mipmap.progress_loading_image_02),50);
        animationDrawable.addFrame(getResources().getDrawable(R.mipmap.progress_loading_image_03),50);
        animationDrawable.addFrame(getResources().getDrawable(R.mipmap.progress_loading_image_04),50);
        animationDrawable.addFrame(getResources().getDrawable(R.mipmap.progress_loading_image_05),50);
        animationDrawable.addFrame(getResources().getDrawable(R.mipmap.progress_loading_image_06),50);
        animationDrawable.addFrame(getResources().getDrawable(R.mipmap.progress_loading_image_07),50);
        animationDrawable.addFrame(getResources().getDrawable(R.mipmap.progress_loading_image_08),50);
        img.setImageDrawable(animationDrawable);
    }

    private void initView() {
        satrt = (Button) findViewById(R.id.satrt);
        stop = (Button) findViewById(R.id.stop);
        img = (ImageView) findViewById(R.id.img);

        satrt.setOnClickListener(this);
        stop.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.satrt:
                Start();
                break;
            case R.id.stop:
                Stop();
                break;
        }
    }

    private void Stop() {
        animationDrawable.stop();
    }

    private void Start() {
        animationDrawable.start();
    }
}

package com.example.day_01;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

import org.xutils.common.Callback;
import org.xutils.http.RequestParams;
import org.xutils.view.annotation.ContentView;
import org.xutils.view.annotation.ViewInject;
import org.xutils.x;

import java.io.File;

@ContentView(R.layout.activity_download)
public  class DownLoadActivity extends Activity {
    ProgressDialog progressDialog;
    @ViewInject(R.id.down)
    private Button down;
    String url = "http://softfile.3g.qq.com:8080/msoft/179/24659/43549/qq_hd_mini_1.4.apk";
    @Override
    protected void onCreate( Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        x.view().inject(this);
        down.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                dialog();
                RequestParams requestParams = new RequestParams();
                requestParams.setUri(url);
                x.http().get(requestParams, new Callback.ProgressCallback<File>() {
                    @Override
                    public void onSuccess(File result) {

                    }

                    @Override
                    public void onError(Throwable ex, boolean isOnCallback) {

                    }

                    @Override
                    public void onCancelled(CancelledException cex) {

                    }

                    @Override
                    public void onFinished() {

                    }

                    @Override
                    public void onWaiting() {
                            progressDialog.dismiss();
                    }

                    @Override
                    public void onStarted() {
                            progressDialog.show();
                    }

                    @Override
                    public void onLoading(long total, long current, boolean isDownloading) {
                               progressDialog.setProgress((int) (current*100/total));
                    }
                });
            }
        });
    }

    private void dialog() {
            progressDialog = new ProgressDialog(this);
            progressDialog.setTitle("下载Apk");
            progressDialog.setMessage("下载中");
            progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
            progressDialog.setButton(ProgressDialog.BUTTON_NEGATIVE, "暂停", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    progressDialog.dismiss();
                }
            });
    }
}

package com.example.day_01;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import org.xutils.DbManager;
import org.xutils.ex.DbException;
import org.xutils.x;

import static com.example.day_01.R.layout.activity_db;

public class DbActivity extends AppCompatActivity {
    Button bt_write;
    Button bt_read;
    DbManager dbManager;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(activity_db);
        bt_write = findViewById(R.id.write);
        bt_read = findViewById(R.id.read);
        x.view().inject(this);
        DbManager.DaoConfig daoConfig = new DbManager.DaoConfig();
        daoConfig.setDbVersion(1);
        daoConfig.setDbName("UserBean");
        dbManager = x.getDb(daoConfig);
        bt_write.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                write();
            }
        });
        bt_read.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                read();
            }
        });
    }

    private void read() {
        UserBean u = null;
        try {
            u = dbManager.findById(UserBean.class, "1");
        } catch (DbException e) {
            e.printStackTrace();
        }
        Toast.makeText(this, ""+u.toString(), Toast.LENGTH_SHORT).show();
    }

    private void write() {
        UserBean userBean = new UserBean();
        userBean.setAge("19");
        userBean.setId("1");
        userBean.setName("王五");
        try {
            dbManager.save(userBean);
        } catch (DbException e) {
            e.printStackTrace();
        }
    }
}

package com.example.day_01;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;

import org.xutils.view.annotation.ContentView;
import org.xutils.x;

@ContentView(R.layout.activity_bt)
public class BitmapActivity extends Activity implements View.OnClickListener {
    private ImageView img;
    private Button bnt_bitmap;
    String url = "http://b-ssl.duitang.com/uploads/item/201703/30/20170330225122_TLMun.jpeg";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        x.view().inject(this);
        initView();
    }

    private void initView() {
        img = (ImageView) findViewById(R.id.img);
        bnt_bitmap = (Button) findViewById(R.id.bnt_bitmap);
        bnt_bitmap.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.bnt_bitmap:
                gatBitmap();
                break;
        }
    }

    private void gatBitmap() {
            x.image().bind(img,url);
    }
}