package cn.sinata.xldutils.fragment;
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import android.content.Context;
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import android.os.Bundle;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import androidx.annotation.Nullable;
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import androidx.fragment.app.Fragment;
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import cn.sinata.xldutils.R;
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import cn.sinata.xldutils.utils.DensityUtil;
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import cn.sinata.xldutils.utils.Toast;
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import cn.sinata.xldutils.view.utils.ViewHolder;
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import cn.sinata.xldutils.widget.ProgressDialog;
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import io.reactivex.disposables.CompositeDisposable;
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import io.reactivex.disposables.Disposable;
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/**
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* fragment ，单独在activity使用请设置setUserVisibleHint(true),结合viewpager使用不需要
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*/
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public abstract class BaseFragment extends Fragment {
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private ProgressDialog dialog;
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protected Context context;
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protected int mScreenWidth;
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public View DictorView;
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protected abstract int getContentViewLayoutID();
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protected abstract void onFirstVisibleToUser();
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protected abstract void onVisibleToUser();
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protected abstract void onInvisibleToUser();
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private boolean isFirstResume = true;
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private boolean isFirstVisible = true;
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private boolean isFirstInvisible = true;
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private boolean isPrepared;
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protected ViewHolder mHolder;
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private CompositeDisposable compositeSubscription;
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@Override
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public void onActivityCreated(Bundle savedInstanceState) {
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super.onActivityCreated(savedInstanceState);
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context = getActivity();
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mScreenWidth = DensityUtil.getDeviceWidth(context);
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initPrepare();
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}
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@Nullable
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@Override
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public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
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if (getContentViewLayoutID() != 0) {
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DictorView = inflater.inflate(getContentViewLayoutID(), null);
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return DictorView;
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} else {
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return super.onCreateView(inflater, container, savedInstanceState);
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}
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}
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@Override
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public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
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super.onViewCreated(view, savedInstanceState);
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compositeSubscription = new CompositeDisposable();
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mHolder = new ViewHolder(view);
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DictorView = view;
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}
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public void addDisposable(Disposable disposable){
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compositeSubscription.add(disposable);
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}
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@Override
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public void onResume() {
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super.onResume();
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if (isFirstResume){
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isFirstResume = false;
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return;
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}
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if (getUserVisibleHint()){
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onVisibleToUser();
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}
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}
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@Override
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public void onPause() {
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super.onPause();
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if (getUserVisibleHint()) {
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onInvisibleToUser();
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}
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}
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@Override
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public void setUserVisibleHint(boolean isVisibleToUser) {
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super.setUserVisibleHint(isVisibleToUser);
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if (isVisibleToUser) {
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if (isFirstVisible) {
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isFirstVisible = false;
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initPrepare();
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} else {
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onVisibleToUser();
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}
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} else {
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if (isFirstInvisible) {
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isFirstInvisible = false;
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// onFirstUserInvisible();
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} else {
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onInvisibleToUser();
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}
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}
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}
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protected <T extends View >T bind(int resId){
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return mHolder.bind(resId);
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}
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@Override
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public void onDetach() {
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super.onDetach();
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if (compositeSubscription!=null&&!compositeSubscription.isDisposed()){
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compositeSubscription.dispose();
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}
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// for bug ---> java.lang.IllegalStateException: Activity has been destroyed
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//noinspection TryWithIdenticalCatches
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// try {
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// Field childFragmentManager = Fragment.class.getDeclaredField("mChildFragmentManager");
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// childFragmentManager.setAccessible(true);
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// childFragmentManager.set(this, null);
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//
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// } catch (NoSuchFieldException e) {
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// throw new RuntimeException(e);
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// } catch (IllegalAccessException e) {
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// throw new RuntimeException(e);
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// }
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}
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private synchronized void initPrepare() {
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if (isPrepared) {
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onFirstVisibleToUser();
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} else {
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isPrepared = true;
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}
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}
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/**
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* 查找 View
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* @param paramInt
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* @return
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*/
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public final <T extends View>T findViewById(int paramInt) {
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if (getView()==null){
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return null;
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}
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//noinspection unchecked
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return (T)getView().findViewById(paramInt);
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}
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public View getDictorView() {
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return DictorView;
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}
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/**
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* 显示加载提示窗
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*/
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public void showDialog(){
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showDialog("加载中...");
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}
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/**
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* 显示加载提示窗
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* @param msg 提示文字
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*/
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protected void showDialog(CharSequence msg){
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showDialog(msg,false);
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}
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/**
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* 显示加载提示窗
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* @param msg 提示文字
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* @param canCancel 是否可手动取消
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*/
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protected void showDialog(CharSequence msg,boolean canCancel){
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if (context == null) {
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return;
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}
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if(dialog == null){
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dialog = new ProgressDialog(context, R.style.Theme_ProgressDialog);
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}
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dialog.setCanceledOnTouchOutside(canCancel);
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dialog.setMessage(msg);
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if (!dialog.isShowing()) {
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dialog.show();
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}
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}
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/**
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* 关闭加载窗
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*/
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public void dismissDialog(){
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if (dialog != null && dialog.isShowing()){
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dialog.dismiss();
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}
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}
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/**
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* 显示Toast
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* @param msg 显示文字
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*/
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public void showToast(String msg){
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if (context == null) {
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return;
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}
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Toast.create(context).show(msg);
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}
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}
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