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2020-07-14 7af22bf20c862c8ab2270cfeef8f3530f174ac9f

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package com.wpc.library.videocomponents;
 
import android.annotation.SuppressLint;
import android.graphics.Bitmap;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.text.TextUtils;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.JavascriptInterface;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
 
public class VideoUrlFragment extends Fragment {
    
    private MediaPlayer mMediaPlayer;
    
    private WebView mWebView;
 
    private Runnable mVideoUrlShower = new Runnable() {
        
        @Override public void run() {
            mWebView.loadUrl("javascript:window.local_obj.showVideoUrl(document.getElementsByTagName('video')[0].src);");
        }
    };
    
    private class AdvertisementSkiper implements Runnable {
        
        private long currentTime;
        
        public AdvertisementSkiper(long currentTime) {
            super();
            this.currentTime = currentTime;
        }
        
        @Override public void run() {
            mWebView.loadUrl("javascript:document.getElementsByTagName('video')[0].play();"
                                      + "document.getElementsByTagName('video')[0].defaultMuted=true;"
                                      + "document.getElementsByTagName('video')[0].currentTime=" + currentTime);
        }
    }
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mMediaPlayer = new MediaPlayer();
    }
    
    @SuppressLint("SetJavaScriptEnabled")
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        mWebView = new WebView(getActivity());
        WebSettings setting = mWebView.getSettings();
        setting.setJavaScriptEnabled(true);
        setting.setJavaScriptCanOpenWindowsAutomatically(true);
        setting.setAllowFileAccess(true);
        mWebView.addJavascriptInterface(new InJavaScriptLocalObj(), "local_obj");
        mWebView.setWebViewClient(new MyWebViewClient());
        mWebView.loadUrl(getArguments().getString("url"));
        return mWebView;
    }
    
    @Override
    public void onDestroy() {
        super.onDestroy();
        mMediaPlayer.reset();
        mMediaPlayer.release();
    }
 
    private final class MyWebViewClient extends WebViewClient {
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            view.loadUrl(url);
            return true;
        }
 
        public void onPageStarted(WebView view, String url, Bitmap favicon) {
            super.onPageStarted(view, url, favicon);
            Log.d("WebView", "onPageStarted");
        }
 
        public void onPageFinished(WebView view, String url) {
            super.onPageFinished(view, url);
            Log.d("WebView", "onPageFinished ");
            mWebView.removeCallbacks(mVideoUrlShower);
            mWebView.postDelayed(mVideoUrlShower, 3000);
        }
    }
    
    private int count = 0;// 循环解析的次数
    
    final class InJavaScriptLocalObj {
        
        @JavascriptInterface
        public void showVideoUrl(String videoUrl) {
            if (TextUtils.isEmpty(videoUrl)) {
                mWebView.postDelayed(mVideoUrlShower, 1000);
            } else {
                long time = getVideoDuration(videoUrl) / 1000;
                if (time < 120) {
                    count++;
                    if (count < 20) {
                        mWebView.post(new AdvertisementSkiper(time));
                        mWebView.postDelayed(mVideoUrlShower, 1000);
                    } else {
                        // 解析失败
                    }
                } else {
                    Log.d("WebView", "真实视频的地址:" + videoUrl);
                }
            }
        }
    }
 
    private long getVideoDuration(String videoUrl) {
        try {
            mMediaPlayer.reset();
            mMediaPlayer.setDataSource(videoUrl);
            mMediaPlayer.prepare();
            long time = mMediaPlayer.getDuration();
            Log.d("WebView", "视频时长：" + time);
            return time;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return 0;
    }
}