封装MVP模式

1.创建View、Presenter和Model的接口

public interface IView {

    void showLoadDialog();
    void dismissLoadDialog();
    void showLongToast(String msg);
    void showShortToast(String msg);

    Boolean isNetworkConnected();

    void startActivity(Class<?> clz);
    void startActivity(Class<?> clz, @NonNull Bundle bundle);
    void startActivityForResult(Class<?> clz, int requestCode);
    void startActivityForResult(Class<?> clz, int requestCode, @NonNull Bundle bundle);
    Bundle getIntentBundle();
}
public interface IPresenter<V extends IView> {
    //绑定view类
    void bindingView(V view);
    void onDestroy();
}
public interface IModel {
    void onDestroy();
}

2.创建Presenter和Model的基类

public abstract class BasePresenter<M extends IModel, V extends IView> implements IPresenter<V> {

    public V mView;
    public M mModel;

    public abstract M bindingModel();

    @Override
    public void bindingView(V view) {
        mView = view;
        mModel = bindingModel();
    }

    @Override
    public void onDestroy() {
        mModel.onDestroy();
        mModel = null;
        mView = null;
    }
}
public abstract class BaseModel implements IModel{

    @Override
    public void onDestroy() {

    }
}

3.BaseMvpActivity基类

BaseActivity代码地址：https://blog.csdn.net/a896159476/article/details/102778772

public abstract class BaseMvpActivity<V extends IView,P extends IPresenter<V>> extends BaseActivity implements IView {

    public P presenter;

    protected abstract P createPresenter();

    @Override
    public void initView() {
        presenter = createPresenter();
        presenter.bindingView((V)this);
    }

    @Override
    public void startActivity(Class<?> clz) {
        super.startActivity(clz);
    }

    @Override
    public void startActivity(Class<?> clz, @NonNull Bundle bundle) {
        super.startActivity(clz, bundle);
    }

    @Override
    public void startActivityForResult(Class<?> clz, int requestCode) {
        super.startActivityForResult(clz, requestCode);
    }

    @Override
    public void startActivityForResult(Class<?> clz, int requestCode, @NonNull Bundle bundle) {
        super.startActivityForResult(clz, requestCode, bundle);
    }

    @Override
    public Bundle getIntentBundle() {
        return super.getIntentBundle();
    }

    /**
     * 如果未注册[registerNetworkMonitoring] 会抛出空指针异常
     */
    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
    @Override
    public Boolean isNetworkConnected() {
        return super.isNetworkConnected();
    }

    @Override
    public void showLoadDialog() {
        super.showLoadDialog();
    }

    @Override
    public void dismissLoadDialog() {
        super.dismissLoadDialog();
    }

    @Override
    public void showLongToast(String msg) {
        super.showLongToast(msg);
    }

    @Override
    public void showShortToast(String msg) {
        super.showShortToast(msg);
    }

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

4.创建契约类

public interface MainContract{
    interface View extends IView{

    }

    interface Presenter extends IPresenter<View> {

    }

    interface Model extends IModel {

    }
}

5.Activity继承BaseMvpActivity实现View接口

public class MainActivity extends BaseMvpActivity<MainContract.View,MainContract.Presenter> implements MainContract.View{

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

    @Override
    protected MainContract.Presenter createPresenter() {
        return new MainPresenter();
    }

    @Override
    public void initView() {
    }

    @Override
    public void initData() {

    }

}

6.创建Presenter

public class MainPresenter extends BasePresenter<MainContract.Model, MainContract.View> implements MainContract.Presenter {

    @Override
    public MainContract.Model bindingModel() {
        return new MainModel();
    }
}

7.创建Model

public class MainModel extends BaseModel implements MainContract.Model{
}

8.MVPFragment

BaseFragment：https://blog.csdn.net/a896159476/article/details/102781914

public abstract class BaseMvpFragment<V extends IView, P extends IPresenter<V>> extends BaseFragment implements IView {

    public P presenter;

    protected abstract P createPresenter();

    @Override
    public void initView(View view) {
        presenter = createPresenter();
        presenter.bindingView((V) this);
    }

    @Override
    public void startActivity(Class<?> clz) {
        super.startActivity(clz);
    }

    @Override
    public void startActivity(Class<?> clz, @NonNull Bundle bundle) {
        super.startActivity(clz, bundle);
    }

    @Override
    public void startActivityForResult(Class<?> clz, int requestCode) {
        super.startActivityForResult(clz, requestCode);
    }

    @Override
    public void startActivityForResult(Class<?> clz, int requestCode, @NonNull Bundle bundle) {
        super.startActivityForResult(clz, requestCode, bundle);
    }

    @Override
    public Bundle getIntentBundle() {
        return super.getIntentBundle();
    }

    /**
     * 如果未注册[registerNetworkMonitoring] 会抛出空指针异常
     */
    @Override
    public Boolean isNetworkConnected() {
        return super.isNetworkConnected();
    }

    @Override
    public void showLoadDialog() {
        super.showLoadDialog();
    }

    @Override
    public void dismissLoadDialog() {
        super.dismissLoadDialog();
    }

    @Override
    public void showLongToast(String msg) {
        super.showLongToast(msg);
    }

    @Override
    public void showShortToast(String msg) {
        super.showShortToast(msg);
    }

}