异步utils

```
public class OKhttpUtils {
    private static final String TAG = "OKhttpUtils--";
    private static OKhttpUtils oKhttpUtils;
    private final OkHttpClient okHttpClient;
    private final Handler myHandler;

    public OKhttpUtils() {
        //新建主线程的handler
        myHandler = new Handler(Looper.getMainLooper());
        okHttpClient = new OkHttpClient.Builder().addInterceptor(new MyInterceptor()).build();

    }

    public static OKhttpUtils getoKhttpUtils() {
        if (oKhttpUtils == null) {
            synchronized (OKhttpUtils.class) {
                if (oKhttpUtils == null) {
                    return oKhttpUtils = new OKhttpUtils();
                }
            }
        }
        return oKhttpUtils;
    }

    //异步get
    public void doGet(String url, final IOKhttpCallBack ioKhttpCallBack) {
        Request request = new Request.Builder()
                .get()
                .url(url)
                .build();
        Call call = okHttpClient.newCall(request);
        call.enqueue(new Callback() {
            @Override
            public void onFailure(Call call, final IOException e) {
                if (ioKhttpCallBack != null) {
                    //切换到主线程
                    myHandler.post(new Runnable() {
                        @Override
                        public void run() {
                            ioKhttpCallBack.onFaild(e.getMessage());
                        }
                    });
                }
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                if (response != null && response.isSuccessful()) {
                    final String json = response.body().string();
                    if (ioKhttpCallBack != null) {
                        //切换到主线程
                        myHandler.post(new Runnable() {
                            @Override
                            public void run() {
                                ioKhttpCallBack.onSuccess(json);
                            }
                        });
                    }
                } else {
                    if (ioKhttpCallBack != null) {
                        //切换到主线程
                        myHandler.post(new Runnable() {
                            @Override
                            public void run() {
                                ioKhttpCallBack.onFaild("网络异常");
                            }
                        });
                    }
                }
            }
        });

    }

    //异步post
    public void doPost(String url, Map<String, String> map, final IOKhttpCallBack ioKhttpCallBack) {
        FormBody.Builder builder = new FormBody.Builder();
        for (String key : map.keySet()) {
            String value = map.get(key);
            Log.d(TAG, "doPost: "+key+value);
            builder.add(key, value);
        }
        FormBody formBody = builder.build();
        Request request = new Request.Builder()
                .post(formBody)
                .url(url)
                .build();
        Call call = okHttpClient.newCall(request);
        call.enqueue(new Callback() {
            @Override
            public void onFailure(Call call, final IOException e) {
                if (ioKhttpCallBack != null) {
                    //切换到主线程
                    myHandler.post(new Runnable() {
                        @Override
                        public void run() {
                            ioKhttpCallBack.onFaild(e.getMessage());
                        }
                    });
                }
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                if (response != null && response.isSuccessful()) {
                    final String json = response.body().string();
                    Log.d(TAG, "onResponse: "+json);
                    if (ioKhttpCallBack != null) {
                        //切换到主线程
                        myHandler.post(new Runnable() {
                            @Override
                            public void run() {
                                ioKhttpCallBack.onSuccess(json);
                            }
                        });
                    }
                } else {
                    if (ioKhttpCallBack != null) {
                        //切换到主线程
                        myHandler.post(new Runnable() {
                            @Override
                            public void run() {
                                ioKhttpCallBack.onFaild("网络异常");
                            }
                        });
                    }
                }
            }
        });
    }

    //接口回调
    public interface IOKhttpCallBack {
        void onFaild(String error);

        void onSuccess(String json);
    }
}

“`