封装OkHttp3框架

okHttp3是一种非常好用的请求框架,我们可以进行简易封装,然后就可以通调用进行网络请求这里还使用了网络拦截器,用来查看请求与返回的数据,需要依赖的是:compile 'com.squareup.okhttp3:logging-interceptor:3.9.0' package com.bwei.week2moni.net;import android.content.Context;import android.os.Handler;import android.os.Looper;import com.bwei.week2moni.BaseBean.basebean;import com.google.gson.Gson;import java.io.IOException;import java.util.Map;import okhttp3.Call;import okhttp3.Callback;import okhttp3.FormBody;import okhttp3.OkHttpClient;import okhttp3.Request;import okhttp3.Response;import okhttp3.logging.HttpLoggingInterceptor;/** * Created by 31962 on 2017/10/14. */public class HttpUtil {    private static volatile HttpUtil httpUtil;    private Context context;    private OkHttpClient client;    private Handler handler = new Handler(Looper.getMainLooper());    public HttpUtil(Context context) {        HttpLoggingInterceptor logging = new HttpLoggingInterceptor();        logging.setLevel(HttpLoggingInterceptor.Level.BODY);        this.context = context;        client = new OkHttpClient.Builder()                .addInterceptor(logging)                .build();    }    public static HttpUtil getinstance(Context context){        if(httpUtil==null){            synchronized (HttpUtil.class){                if(httpUtil == null){                   httpUtil = new HttpUtil(context);                }            }        }        return httpUtil;    }    public void doGet(String url, final Class clazz, final OnNetListener onNetListener){        if(url!=null){            Request request = new Request.Builder().url(url).build();            client.newCall(request).enqueue(new Callback() {                @Override                public void onFailure(Call call, IOException e) {                        onNetListener.onError(e);                }                @Override                public void onResponse(Call call, Response response) throws IOException {                    String string = response.body().string();                    Gson gson = new Gson();                    final basebean b = (basebean) gson.fromJson(string, clazz);                    String code = b.getCode();                    if(code.equals("0")){                        handler.post(new Runnable() {                            @Override                            public void run() {                                try {                                    onNetListener.onSuccess(b);                                } catch (IOException e) {                                    e.printStackTrace();                                }                            }                        });                    }                    else if(code.equals("1")){                    }                    else{                    }                }            });        }    }    public void doPost(String url, Map<String,String> params, final Class clazz, final OnNetListener onNetListener){        if(url!=null&&params!=null&&params.size()>0){            FormBody.Builder builder = new FormBody.Builder();            for (Map.Entry<String,String > entry:params.entrySet()){                builder.add(entry.getKey(),entry.getValue());            }            FormBody formBody = builder.build();            Request request = new Request.Builder().url(url).post(formBody).build();            client.newCall(request).enqueue(new Callback() {                @Override                public void onFailure(Call call, IOException e) {                    onNetListener.onError(e);                }                @Override                public void onResponse(Call call, Response response) throws IOException {                    String string = response.body().string();                    Gson gson = new Gson();                    final basebean b = (basebean) gson.fromJson(string, clazz);                    String code = b.getCode();                    if(code.equals("0")){                        handler.post(new Runnable() {                            @Override                            public void run() {                                try {                                    onNetListener.onSuccess(b);                                } catch (IOException e) {                                    e.printStackTrace();                                }                            }                        });                    }                    else if(code.equals("1")){                    }                    else{                    }                }            });        }    }}这里边的OnNetListener是一个自定义的接口,我们可以进行接口回调
public interface OnNetListener {    public void onError(IOException e);    public void onSuccess(basebean b) throws IOException;}
basebean是所有bena类的父类,所以可以通过传入要请求数据的专有的bean.class,实现接口回调,


这个项目还可以加入网络判断,这是网络判断的类:
package utils;import android.content.Context;import android.net.ConnectivityManager;import android.net.NetworkInfo;public class NetWorkUtil {    // check all network connect, WIFI or mobile    public static boolean isNetworkAvailable(final Context context) {        boolean hasWifoCon = false;        boolean hasMobileCon = false;        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(context.CONNECTIVITY_SERVICE);        NetworkInfo[] netInfos = cm.getAllNetworkInfo();        for (NetworkInfo net : netInfos) {            String type = net.getTypeName();            if (type.equalsIgnoreCase("WIFI")) {                if (net.isConnected()) {                    hasWifoCon = true;                }            }            if (type.equalsIgnoreCase("MOBILE")) {                if (net.isConnected()) {                    hasMobileCon = true;                }            }        }        return hasWifoCon || hasMobileCon;    }}

这么使用:

if(!NetWorkUtil.isNetworkAvailable(context)){    Toast.makeText(context,"没有网络,请查看设置",Toast.LENGTH_SHORT).show();    return;}