Android MVP+Retrofit2 简单的mvp学习框架

待我称王封你为后i 2023-01-11 09:11 160阅读 0赞

###### 目录说明 ######

**contract** ： V层和P层之间方法锲约，方便管理V和P之间的方法调用。  
**entity** ：实体类，管理网络请求的数据封装类。  
**fragment：** Android的fragment类。  
**http**：网络请求工具类封装。  
**model：** mvp的M层，负责数据处理。  
**presenter：** mvp的P层，负责业务逻辑的处理。  
**tools：** 工具类  
**view：** mvp的V层，负责数据呈现。

###### M层基本描述 ######

public class JokerModel extends BaseModel { 
        public void getList(NetworkCallBack callBack) { 
            Map<String, Object> map = new HashMap<>();
            map.put("key", "e181e60669ebaa69ef3fdecdf35bce05");
            map.put("sort", "desc");
            map.put("time", "1418816972");
            Call<ResponseBody> call = RetrofitService.getAPIService().getRequestRouter("joke/content/list.php", map);
            RequestControl.request(0x001, call, JokerEntity.class, callBack);
        }
    }

这里使用聚合的api接口测试，使用时如果没有请求次数，可以换成自己申请的key。

###### V层基本描述 ######

Activity：

public class JokerActivity extends BaseActivity { 
        public static final String EXTRA_ID = "JOKER_ID";
    
        @Override
        protected int bindLayout() { 
            return R.layout.activity_joker;
        }
    
        @Override
        protected void initView() { 
            JokerFragment jokerFragment = (JokerFragment) getSupportFragmentManager()
                    .findFragmentById(R.id.jokerFrame);
    
            String id = getIntent().getStringExtra(EXTRA_ID);
            if (jokerFragment == null) { 
                jokerFragment = JokerFragment.newInstance(id);
            }
            new JokerPresenter(jokerFragment);
            ActivityUtils.addFragmentToActivity(getSupportFragmentManager(),
                    jokerFragment, R.id.jokerFrame);
        }
    
        @Override
        protected void initData() { 
    
        }
    }

Fragment:

public class JokerFragment extends BaseFragment implements JokerContract.View { 
        @NonNull
        private static final String ARGUMENT_JOKER_ID = "JOKER_ID";
        private JokerContract.Presenter mPresenter;
    
        public static JokerFragment newInstance(@Nullable String id) { 
            Bundle arguments = new Bundle();
            arguments.putString(ARGUMENT_JOKER_ID, id);
            JokerFragment fragment = new JokerFragment();
            fragment.setArguments(arguments);
            return fragment;
        }
    
        @Override
        protected int bindLayout() { 
            return R.layout.fragment_joker;
        }
    
        @Override
        protected void initView(View view) { 
            Button loadBtn = view.findViewById(R.id.loading);
            loadBtn.setOnClickListener(new View.OnClickListener() { 
                @Override
                public void onClick(View view) { 
                    mPresenter.getList();
                }
            });
        }
    
        @Override
        protected void initData() { 
    
        }
    
        @Override
        public void getListData(JokerEntity result) { 
            List<JokerEntity.ResultBean.DataBean> data = result.getResult().getData();
            for (JokerEntity.ResultBean.DataBean item : data) { 
                Log.e("getListData", "getListData: " + item.getContent());
            }
        }
    
        @Override
        public void showDialog(String s) { 
            Log.e("getListData", "显示进度: ");
        }
    
        @Override
        public void visibleDialog() { 
            Log.e("getListData", "关闭进度: ");
        }
    
        @Override
        public void onError(Object t) { 
            Log.e("getListData", "异常信息: ");
        }
    
        @Override
        public void setPresenter(JokerContract.Presenter presenter) { 
            mPresenter = presenter;
        }
    
        @Override
        public void onDestroy() { 
            super.onDestroy();
            mPresenter.dischargeView();
        }
    }

这里采用Activity+Fragment的原因是为了减少视图层的代码，方便阅读和修改。

###### P层基本描述 ######

public class JokerPresenter implements JokerContract.Presenter, NetworkCallBack { 
        private JokerModel model;
        private JokerContract.View view;
    
        public JokerPresenter(JokerContract.View view) { 
            this.view = view;
            this.view.setPresenter(this);
            this.model = new JokerModel();
        }
    
        @Override
        public void getList() { 
            view.showDialog("加载中");
            model.getList(this);
        }
    
        @Override
        public void getDetailed() { 
    
        }
    
        @Override
        public void dischargeView() { 
            view = null;
        }
    
        @Override
        public void onSuccess(int what, Object result) { 
            if (result instanceof JokerEntity) { 
                JokerEntity entity = (JokerEntity) result;
                view.getListData(entity);
            }
            view.visibleDialog();
        }
    
        @Override
        public void onFail(int what, String result) { 
            view.onError(result);
            view.visibleDialog();
        }
    }

P层向M层请求数据，返回给NetworkCallBack ，在onSuccess把返回的数据传给V层呈现。

###### http工具类 ######

RequestControl：

public class RequestControl { 
        private static final String SOCKET_TIME_OUT = "网络连接超时";
        private static final String CONNECT = "请求服务器异常";
        private static final String JSON_EXCEPTION = "数据解析错误";
        private static final String UNKNOWN = "未知错误";
        private static final String NETWORK_EXCEPTION = "请检查网络连接是否正常";
    
        public static void request(final int what, final Call<ResponseBody> call, final Class<?> tClass, final NetworkCallBack callBack) { 
            call.enqueue(new Callback<ResponseBody>() { 
                @EverythingIsNonNull
                @Override
                public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) { 
                    if (response.isSuccessful()) { 
                        if (response.body() != null) { 
                            ResponseBody body = response.body();
                            Gson gson = new Gson();
                            try { 
                                String json = body.string();
                                if (!TextUtils.isEmpty(json)) { 
                                    Object data = gson.fromJson(json, tClass);
                                    callBack.onSuccess(what,  data);
                                } else { 
                                    callBack.onFail(what, null);
                                }
                            } catch (Exception e) { 
                                e.printStackTrace();
                            }
                        } else { 
                            callBack.onFail(what, NETWORK_EXCEPTION);
                        }
                    }
                }
    
                @EverythingIsNonNull
                @Override
                public void onFailure(Call<ResponseBody> call, Throwable t) { 
                    if (t instanceof SocketTimeoutException) { 
                        callBack.onFail(what, SOCKET_TIME_OUT);
                    } else if (t instanceof ConnectException) { 
                        callBack.onFail(what, CONNECT);
                    } else if (t instanceof JsonSyntaxException) { 
                        callBack.onFail(what, JSON_EXCEPTION + "\n" + t.toString());
                    } else { 
                        callBack.onFail(what, "[ " + what + " ]" + UNKNOWN + "\n" + t.toString());
                    }
                }
            });
        }
    }

数据请求封装，这里你可以根据实际的业务来修改。

RequestRouter：

public interface RequestRouter { 
        @GET("{url}")
        Call<ResponseBody> getRequestBody(@Path("url") String url, @Body RequestBody route, @QueryMap Map<String, Object> map);
    
        @GET("{url}")
        Call<ResponseBody> getRequestRouter(@Path("url") String url, @QueryMap Map<String, Object> map);
    
        @POST("{url}")
        Call<ResponseBody> postRequestBody(@Path("url") String url, @Body RequestBody route, @QueryMap Map<String, Object> map);
    
        @POST("{url}")
        Call<ResponseBody> postRequestRouter(@Path("url") String url, @FieldMap Map<String, Object> map);
    
        @Multipart
        @POST("{url}")
        Call<ResponseBody> uploadFilesMultipartBodyParts(@Path("url") String url, @Part List<MultipartBody.Part> partList);
    }

这里封装了五种请求方式，可根据业务协议选择使用。

RetrofitService：

public static RequestRouter getAPIService(String url) { 
            retrofit = new Retrofit.Builder()
                    .baseUrl(url) //设置Base的访问路径
                    .addConverterFactory(GsonConverterFactory.create(gsonConverterFactory)) //设置默认的解析库：Gson
                    .client(defaultOkHttpClient())
                    .build();
            return retrofit.create(RequestRouter.class);
        }

Retorfit2工具封装。

private static final Interceptor LoggingInterceptor = new Interceptor() { 
            @Override
            public Response intercept(Interceptor.Chain chain) throws IOException { 
                Request request = chain.request();
                long t1 = System.nanoTime();
                okhttp3.Response response = chain.proceed(chain.request());
                long t2 = System.nanoTime();
                okhttp3.MediaType mediaType = response.body().contentType();
                String content = response.body().string();
                Log.i("TAG", "-----LoggingInterceptor----- :\nrequest url:" +
                        request.url() + "\ntime:" + (t2 - t1) / 1e6d + "\nbody:" + content + "\n");
                return response.newBuilder()
                        .addHeader("Content-Type", "application/json")
                        .addHeader("Cache-Control", "no-cache")
                        .addHeader("token", mToken)
                        .body(okhttp3.ResponseBody.create(mediaType, content))
                        .build();
            }
        };

拦截器，这里可以添加请求的token，以及查看数据返回。

ClientManager.setCertificates(getAssets().open("xxx.cer"), getAssets().open("xxxx.cer"))

添加https证书，内部已处理Android9.0明文请求以及https请求问题。

直接通过git拉取到本地文件目录下，修改包名即可使用。  
**框架地址：[https://github.com/Joker-say/MVP][https_github.com_Joker-say_MVP]**

**不足之处还望各位大佬指点**

[https_github.com_Joker-say_MVP]: https://github.com/Joker-say/MVP