很多时候 一个fragment可能放在不同地方，但是子类是做了某些刷新的封装，到第哪些需要懒加载哪些 不需要，或者需要但是 所嵌套的层次不同，都会出现不一样的毛病
比如子fragment,放在viewpager里面放在viewpager里面的 子fragment等等。如果出现问题了设置setOnStartNeedCheckData为true即可。

package cn.qssq666.rapiddevelopframe.base.fragment;import android.content.Context;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.BuildConfig;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;import cn.qssq666.rapiddevelopframe.global.SuperAppContext;
import cn.qssq666.rapiddevelopframe.utils.FragmentUtil;
import cn.qssq666.rapiddevelopframe.utils.Prt;/*** Created by 情随事迁(qssq666@foxmail.com) on 2017/2/22.*/public abstract class BaseLazyLoadFragment extends SuperFragment implements FragmentUtil.FragmentOnStartNeedCheckVisible<BaseLazyLoadFragment> {public final String TAG = this.getClass().getName();protected boolean mIsViewCreated;public View getView() {return mView;}private View mView;@Nullable@Overridepublic final View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {if (mView == null || mIsViewCreated == false) {//mInitfalse则重新加载mView = onCreateViewFix(inflater, container, savedInstanceState);}return mView;}abstract protected View onCreateViewFix(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState);@Overridepublic final void onViewCreated(View view, @Nullable Bundle savedInstanceState) {if (!mIsViewCreated) {mIsViewCreated = true;if (!isLazyLoadMode()) {if(cn.qssq666.rapiddevelopframe.BuildConfig.DEBUG){Log.w(TAG,"LAZY-FRAGMENT-INIT-onViewCreatedFix-ABSTRACT");}onViewCreatedFix(view, savedInstanceState);} else {lazyLoad();//但是如果不可见也是没法调用的.}}}public abstract void onViewCreatedFix(View view, @Nullable Bundle savedInstanceState);@Overridepublic void onDestroyView() {super.onDestroyView();if (mView != null) {ViewGroup viewGroup = ((ViewGroup) mView.getParent());if (viewGroup != null) {viewGroup.removeView(mView);}}}/*** Fragment当前状态是否可见*/protected boolean isVisible = false;protected boolean mIsLoadData;@Overridepublic void setUserVisibleHint(boolean isVisibleToUser) {super.setUserVisibleHint(isVisibleToUser);if (getUserVisibleHint()) {isVisible = true;onVisible();} else {isVisible = false;onInvisible();}}/*** 可见*/protected void onVisible() {lazyLoad();}/*** 不可见*/protected void onInvisible() {}@Overridepublic void onStart() {super.onStart();isVisible = true;if (onStartNeedCheckData()) {if (!hasInitData() && isLazyLoadMode()) {//在viewpager里面没问题,但是单纯的fragment如 畅销故事需要写这个.可能是因为adapter适配器的不同导致的.lazyLoad();}}}public boolean onStartNeedCheckData() {return mOnStartNeedCheckData;}/*** 如果是fragment里面的fragment则需要。** @param mOnStartNeedCheckData* @return*/public BaseLazyLoadFragment setOnStartNeedCheckData(boolean mOnStartNeedCheckData) {this.mOnStartNeedCheckData = mOnStartNeedCheckData;return this;}boolean mOnStartNeedCheckData;@Overridepublic void onStop() {super.onStop();isVisible = false;}public String getTAG() {return "BaseLazy";}protected boolean hasInitData() {return mIsLoadData;}/*** 延迟加载* 子类必须重写此方法*/protected void lazyLoad() {if (isLazyLoadMode()) {if (!mIsViewCreated || !isVisible) {Log.w(TAG, "lazyLoad call return :init?" + mIsViewCreated + ",是否可见:" + isVisible);return;}if (getActivity() == null) {Prt.e(TAG, "activity为空" + this.getClass().getSimpleName());if (BuildConfig.DEBUG) {SuperAppContext.showToast("" + "activity为空" + this.getClass().getSimpleName());}return;}if (mIsLoadData) {if(BuildConfig.DEBUG){Log.w(TAG, "页面已经加载了并显示过了,忽略init " + this.getClass());}return;}mIsLoadData = true;onViewCreatedFix(mView, null);}}@Overridepublic void onAttach(Context context) {super.onAttach(context);if (BuildConfig.DEBUG) {Prt.w(TAG, "onAttach");}}protected boolean isLazyLoadMode() {return lazyLoadMode;}public BaseLazyLoadFragment setLazyLoadMode(boolean lazyLoadMode) {this.lazyLoadMode = lazyLoadMode;return this;}boolean lazyLoadMode = true;}