MVP抽基类并实现注册登录

BaseActivity Demo:

public abstract class BaseActivity<P extends BasePresenter> extends AppCompatActivity implements IBaseView {
    public P presenter;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(setChildContentView());
        initView();
        initBaseData();
        initData();
    }

    private void initBaseData() {
        presenter = setPresenter();
        if (presenter != null) {
            presenter.attacheView(this);
        } else {
            Log.e("----", "initBaseData: nu" );
            try {
                throw new Exception("你他妈的");
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

    ;

    abstract void initView();

    abstract void initData();

    abstract P setPresenter();

    abstract int setChildContentView();
}

MainActivity Demo:

public class MainActivity extends BaseActivity<MainPresenter> implements IMainView, View.OnClickListener {
    private TextView zhuce;
    private EditText mobileLogin;
    private EditText passwordLogin;
    private Button login;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);


    }

    @Override
    void initView() {


        mobileLogin = (EditText) findViewById(R.id.mobile_login);
        passwordLogin = (EditText) findViewById(R.id.password_login);
        findViewById(R.id.login).setOnClickListener(this);

        zhuce = (TextView) findViewById(R.id.zhuce);
        zhuce.setOnClickListener(this);

    }

    @Override
    void initData() {
//        MainPresenter mainPresenter = new MainPresenter();
//        mainPresenter.attacheView(this);
        if (presenter != null) {
            presenter.loadDataFrom();
        }
    }

    @Override
    MainPresenter setPresenter() {
        return new MainPresenter();
    }

    @Override
    int setChildContentView() {
        return R.layout.activity_main;
    }


    @Override
    public void onSuccess(String str) {
        Log.e("myMessage", "onSuccess" + str);
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        presenter.detachView();
    }

    @Override
    public void onClick(View view) {
        switch (view.getId()) {
            case R.id.zhuce:
                Intent intent = new Intent(MainActivity.this, RegisterActivity.class);
                startActivity(intent);
                finish();
                break;
            case R.id.login:
                String mobileL = mobileLogin.getText().toString();
                String passwordL = passwordLogin.getText().toString();
                if (!CommonUtil.isMobileNO(mobileL)) {
                    Toast.makeText(MainActivity.this, getResources().getString(R.string.wrong_mobile_num), Toast.LENGTH_SHORT).show();
                    return;
                }

                if (passwordL == null || "".equals(passwordL)) {
                    Toast.makeText(MainActivity.this, getResources().getString(R.string.wrong_password), Toast.LENGTH_SHORT).show();
                    return;
                }
                String path="user/login";
                HashMap<String, String> hashMap = new HashMap<>();
                hashMap.put("mobile",mobileL);
                hashMap.put("password",passwordL);
                presenter.Login(path,hashMap);
                break;

        }
    }
}

BasePresenter Demo:

public class BasePresenter<V extends IBaseView> {
    private V iBaseView;

    public void attacheView(V iBaseView) {
        this.iBaseView = iBaseView;
    }

    public void detachView() {
        iBaseView = null;
    }

    public V getView() {
        return iBaseView;
    }
}

MainPresenter Demo:

public class MainPresenter extends BasePresenter<IMainView>{

    private final HttpUtils instance;

    public MainPresenter() {
        instance = HttpUtils.getInstance();
    }

    public void loadDataFrom(){
//        String data = instance.doPost();
       getView().onSuccess("是啥");
    }
    public void Login(String path, HashMap<String ,String> hashMap){
        instance.doPost(path, hashMap, new HttpUtilsCallBack() {
            @Override
            public void onSuccess(String str) {
                Log.e("myMessage", str);

                Looper.prepare();
                IMainView view = getView();
                Gson gson = new Gson();
                LoginBean loginBean = gson.fromJson(str, LoginBean.class);
                String code = loginBean.getCode();
                String msg = loginBean.getMsg();
                if (code.equals("1")) {
                    Toast.makeText((Context) view, msg, Toast.LENGTH_SHORT).show();
                } else {
                    Toast.makeText((Context) view, msg, Toast.LENGTH_SHORT).show();
                }
                Looper.loop();
            }

            @Override
            public void onFail(int errCode, String errMsg) {

            }
        });
    }

}

model层接口：

请求数据的工具类：

public class HttpUtils implements Callback{
    private String url = "https://www.zhaoapi.cn/user/login?mobile=18238356789&password=123456";
    private String string;
    private static HttpUtils INSTANCE;
    private final OkHttpClient okHttpClient;
    private HttpUtilsCallBack mHttpUtilsCallBack;
    private HttpUtils(){
        okHttpClient = new OkHttpClient();
    }

    public static HttpUtils getInstance(){
        if (INSTANCE==null){
            INSTANCE = new HttpUtils();
        }
        return INSTANCE;
    }
    public static final MediaType JSON
            = MediaType.parse("application/json; charset=utf-8");


//    public String doGet() {
//        Request request = new Request.Builder()
//                .url(url)
//                .build();
//        Call call = okHttpClient.newCall(request);
//        call.enqueue(this);
//        return "string";
//    }

    public String doPost(String path, HashMap<String,String > map, HttpUtilsCallBack httpUtilsCallBack) {
        this.mHttpUtilsCallBack=httpUtilsCallBack;
        FormBody.Builder builder = new FormBody.Builder();
        Iterator<String> iterator = map.keySet().iterator();
        while (iterator.hasNext()) {
            String key = iterator.next();
            String value = map.get(key);
            builder.add(key,value);
        }
        FormBody body = builder.build();

        Request request = new Request.Builder()
                .url(Constant.BASE_URL+path)
                .post(body)
                .build();
        Call call = okHttpClient.newCall(request);
        call.enqueue(this);
        return "string";
    }

    @Override
    public void onFailure(Call call, IOException e) {

    }

    @Override
    public void onResponse(Call call, Response response) throws IOException {
        String string = response.body().string();
        mHttpUtilsCallBack.onSuccess(string);
    }
}