使用MVP设计模式

说明

使用MVP设计模式进行解耦

View层

Activity,Fragment为view层的成员,负责初始化各种view组件,监听点击,滑动等各种事件,并调用Presenter处理实际的业务流程.

Presenter层

实际的逻辑处理者

Modle

实体Bean

---

LoginPresenter

public class LoginPresenter implements BasePresenter {
    private MvpView mView;
    private UserCache userCache;

    @Inject
    public LoginPresenter(UserCache userCache) {
        this.userCache = userCache;
    }


    public void setView(MvpView view) {
        mView = view;
    }


    public void initialize() {
        List users = userCache.getHistoryList();
        mView.initAutoComplete(users);

        autoLogin();
    }

    /**
     * 自动登录
     */
    private void autoLogin() {
        User user = userCache.getCurrUser();
        if (user != null) {
            if ("游客".equals(user.getAccount())) {
                return;
            }
            mView.loginSuccess();
        }
    }


    public void login(String account, String password) {
        User user = userCache.getUser(account);
        if (user == null) {
            user = new User();
        }
        user.setAccount(account);
        user.setUserName(account);

        userCache.setCurrUser(user);

        mView.loginSuccess();
    }

    public interface MvpView extends BaseMvpView {

        void loginSuccess();

        void loginFailure();

        void initAutoComplete(List users);
    }
}

LoginAcitivty

public class LoginActivity extends BaseActivity implements LoginPresenter.MvpView {

    @Bind(R.id.viewRoot)
    ResizeLayout viewRoot;
    @Bind(R.id.editAccount)
    AutoCompleteTextView editAccount;
    @Bind(R.id.editPassword)
    EditText editPassword;
    @Bind(R.id.viewInputPane)
    View viewInputPane;
    @Bind(R.id.viewHeadPane)
    View viewHeadPane;

    @Inject
    LoginPresenter loginPresenter;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);
        ButterKnife.bind(this);
        getActivityComponent().inject(this);

        initKeyBordListener();

        loginPresenter.setView(this);
        loginPresenter.initialize();
    }


    /**
     * 登录
     */
    @OnClick(R.id.btnLogin)
    void login() {
        String account = editAccount.getText().toString();
        String password = editPassword.getText().toString();
        if (TextUtils.isEmpty(account)) {
            Toast.makeText(this, "account null", Toast.LENGTH_SHORT).show();
            return;
        }

        loginPresenter.login(account, password);

    }

    @Override
    public void loginSuccess() {
        Intent intent = new Intent(this, HomeActivity.class);
        startActivity(intent);
        finish();
    }

    @Override
    public void loginFailure() {

    }

    @Override
    public void initAutoComplete(List users) {
        String[] COUNTRIES = new String[users.size()];

        for (int i = 0; i < users.size(); i++) {
            COUNTRIES[i] = users.get(i).getAccount();
        }

        ArrayAdapter adapter = new ArrayAdapter<>(this,
                android.R.layout.simple_dropdown_item_1line, COUNTRIES);
        editAccount.setAdapter(adapter);
        editAccount.setThreshold(0);
        editAccount.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView parent, View view, int position, long id) {
                System.out.println("onItemClick");
                hideSoftInput();
            }
        });
    }

    @Override
    public void showLoading(String title, String msg) {

    }

    @Override
    public void hideLoading() {

    }

    @Override
    public void showError(String message) {

    }
}