MVP优化的结构

view的结构

• BaseView

public interface BaseView {    void showLoading();    void hideLoading();}

• NewMvpView

public interface NewMvpView extends BaseView {    void setListItem(List
     
       data);    void showMessage(String message);}
     

presenter结构

• BasePresenter

public abstract class BasePresenter
     
       {    public T mView;    public void attach(T mView){        this.mView = mView;    }    public void dettach(){        mView = null;    }}
     

NewMvpPresenter

public class NewMvpPresenter extends BasePresenter
     
       {    private RequestBiz requestBiz;    private Handler mHandler;    public NewMvpPresenter() {        requestBiz = new RequestBiziml();        mHandler = new Handler(Looper.getMainLooper());    }    public void onResume(){        requestBiz.requestForData(new OnRequestListener() {            @Override            public void onSuccess(final List
      
        data) {                mHandler.post(new Runnable() {                    @Override                    public void run() {                        mView.hideLoading();                        mView.setListItem(data);                    }                });            }            @Override            public void onFailed() {                mView.showMessage("请求失败");            }        });    }    public void onItemClick(int position){        mView.showMessage("点击了item"+position);    }}
      
     

activity结构

• BaseMvpActivity

public abstract class BaseMvpActivity
     
      > extends AppCompatActivity {    public T presenter;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        presenter = initPresenter();    }    @Override    protected void onResume() {        super.onResume();        presenter.attach((V)this);    }    @Override    protected void onDestroy() {        presenter.dettach();        super.onDestroy();    }    public abstract T initPresenter();}
     

• NewMvpActivity

public class NewMvpActivity extends BaseMvpActivity
     
       implements NewMvpView,AdapterView.OnItemClickListener{    private ListView mvpListView;    private ProgressBar pb;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_mvp);        mvpListView = (ListView)findViewById(R.id.mvp_listview);        mvpListView.setOnItemClickListener(this);        pb = (ProgressBar) findViewById(R.id.mvp_loading);    }    @Override    protected void onResume() {        super.onResume();        presenter.onResume();    }    @Override    public NewMvpPresenter initPresenter() {        return new NewMvpPresenter();    }    @Override    public void onItemClick(AdapterView
       parent, View view, int position, long id) {        presenter.onItemClick(position);    }    @Override    public void setListItem(List
      
        data) {        ArrayAdapter adapter = new ArrayAdapter(this,android.R.layout.simple_list_item_1,data);        mvpListView.setAdapter(adapter);    }    @Override    public void showMessage(String message) {        Toast.makeText(this,message,Toast.LENGTH_SHORT).show();    }    @Override    public void showLoading() {        pb.setVisibility(View.VISIBLE);    }    @Override    public void hideLoading() {        pb.setVisibility(View.GONE);    }}