BaseFragment.java

package com.lqr.wechat.ui.base;

import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import butterknife.ButterKnife;

public abstract class BaseFragment<V, T extends BasePresenter<V>> extends Fragment {

    protected T mPresenter;

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

        init();

        //判断是否使用MVP模式
        mPresenter = createPresenter();
        if (mPresenter != null) {
            mPresenter.attachView((V) this);//因为之后所有的子类都要实现对应的View接口
        }
    }

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        //子类不再需要设置布局ID，也不再需要使用ButterKnife.bind()
        View rootView = inflater.inflate(provideContentViewId(), container, false);
        ButterKnife.bind(this, rootView);
        initView(rootView);
        return rootView;
    }

    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        initData();
        initListener();
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        if (mPresenter != null) {
            mPresenter.detachView();
        }
    }

    public void init() {

    }

    public void initView(View rootView) {
    }

    public void initData() {

    }

    public void initListener() {

    }

    //用于创建Presenter和判断是否使用MVP模式(由子类实现)
    protected abstract T createPresenter();

    //得到当前界面的布局文件id(由子类实现)
    protected abstract int provideContentViewId();
}