我要评论public class MainActivity extends Activity {
private WebView mWebView;
@Override
@SuppressLint("SetJavaScriptEnabled")
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mWebView = findViewById(R.id.activity_main_webview);
WebSettings webSettings = mWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setLoadsImagesAutomatically(true);
webSettings.setJavaScriptCanOpenWindowsAutomatically(true);
webSettings.setAllowFileAccess(true);// 设置允许访问文件数据
webSettings.setSupportZoom(true);
webSettings.setBuiltInZoomControls(true);
webSettings.setCacheMode(WebSettings.LOAD_NO_CACHE); // 不加载缓存内容
webSettings.setDomStorageEnabled(true);
webSettings.setDatabaseEnabled(true);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {//允许音频播放权限
webSettings.setMediaPlaybackRequiresUserGesture(false);
}
webSettings.setDefaultZoom(WebSettings.ZoomDensity.CLOSE);//默认缩放模式
// webSettings.setSupportMultipleWindows(true);
// webSettings.setGeolocationEnabled(true);
// webSettings.setGeolocationDatabasePath("");
// webSettings.setUseWideViewPort(true);
//
if(Build.VERSION.SDK_INT>=Build.VERSION_CODES.LOLLIPOP){
// 5.0以上允许加载http和https混合的页面(5.0以下默认允许，5.0+默认禁止)
webSettings.setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);
}
webSettings.setPluginState(WebSettings.PluginState.ON);
mWebView.setWebViewClient(new MyWebViewClient1());
mWebView.setWebChromeClient(new WebChromeClient() {
@Override
public boolean onJsAlert(WebView view, String url, String message, JsResult result) {
super.onJsAlert(view, url, message, result);
Log.e("onJsAlert"," h5页面执行Alert对话框了");
// return super.onJsAlert(view, url, message, result);
result.cancel(); //一定要cancel，否则会出现各种奇怪问题
return true;//屏蔽弹框
}
@Override
public boolean onJsConfirm(WebView view, String url, String message, JsResult result) {
Log.e("onJsConfirm"," h5页面执行confirm对话框了");
return super.onJsConfirm(view, url, message, result);
}
@Override
public boolean onJsPrompt(WebView view, String url, String message, String defaultValue, JsPromptResult result) {
Log.e("onJsPrompt"," h5页面执行prompt对话框了");
return super.onJsPrompt(view, url, message, defaultValue, result);
}
@Override
public void onReceivedTitle(WebView webView, String s) {
super.onReceivedTitle(webView, s);
}
});
Map extraHeaders = new HashMap();
extraHeaders.put("User-Agent", "User-Agent: Mozilla/5.0 (Linux; Android 7.0; SM-G892A Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/67.0.3396.87 Mobile Safari/537.36");
// REMOTE RESOURCE
mWebView.loadUrl("https://m.toutiaoimg.cn/i6859655206066605327/?app=news_article_lite×tamp=1599634154");
// mWebView.loadUrl("https://kandianshare.html5.qq.com/v2/video/pBeSRZHbalg5f570c00877?docId=498750437992314297&from_app=qqkd&sUserId=76bc484edf55243bfacc0c7b21010bf6&sGuid=63d9454025e8e97555ff2d765b310ecfclassify=0&sourcefrom=6");
// mWebView.loadUrl("https://haokan.baidu.com/v?vid=11376998013330206563&pd=haokan_share&context=%7B%22cuid%22%3A%22li25igapSugKiHi8_avct_8JSfY5uHi0gav5i0uS2t0RuS8B_8-Du08eQMl58WRUb6XmA%22%7D");
// ok mWebView.loadUrl("https://m.weibo.cn/status/4546994821407361");
// mWebView.loadUrl("https://h5.weishi.qq.com/weishi/feed/7cuoU9urB1Kckwn6R/wsfeed?wxplay=1&id=7cuoU9urB1Kckwn6R&spid=8893501952619433987&qua=v1_iph_weishi_8.1.7_738_app_a&chid=100081014&pkg=3670&attach=cp_reserves3_1000370011");
// ok mWebView.loadUrl("https://share.huoshan.com/hotsoon/s/PqEELI9X0c8/");
// ok mWebView.loadUrl(" https://v.kuaishou.com/8LPwEt");
// ok mWebView.loadUrl(" https://quanmin.hao222.com/sv2?source=share-h5&pd=qm_share_mvideo&vid=3773848404700556444&shareTime=1599621477&shareid=1077522796&shared_cuid=li25igapSugKiHi8_avct_8JSfY5uHi0gav5i0uS2t0RuS8B_8-Du08eQMl58WRUb6XmA&shared_uid=_aBLigai28GVA");
// ok mWebView.loadUrl("http://p3-hs.byteimg.com/img/tos-cn-p-0015/511bcc0caac24a4ea7ce335ee122e5f3_1585387863~tplv-hs-large.jpg", extraHeaders);
// ok mWebView.loadUrl("http://m.v.qq.com/play/play.html?vid=d3103avc32n&url_from=share&second_share=0&share_from=copy&pgid=page_smallvideo_immersive&ztid=120136&mod_id=sp_immersive_poster");
mWebView.loadUrl("https://v.douyin.com/JBCkm73/");
// ok mWebView.loadUrl("https://www.iesdouyin.com/share/video/6860758961298099463/?region=CN&mid=6860759071377591054&u_code=16mhgc5ib&titleType=title×tamp=1599558954&utm_campaign=client_share&app=aweme&utm_medium=ios&tt_from=copy&utm_source=copy");
}
class MyWebViewClient1 extends WebViewClient {
@Override
public void doUpdateVisitedHistory(WebView view, String url, boolean isReload) {
//通知主机应用程序更新其访问链接数据库（更新访问历史）。isReload：是否是正在被reload的url
Log.i("bqt", "【doUpdateVisitedHistory】" + url + " " + isReload);
super.doUpdateVisitedHistory(view, url, isReload);
}
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
//favicon(网站图标)：如果这个favicon已经存储在本地数据库中，则会返回这个网页的favicon，否则返回为null
Log.i("bqt", "【onPageStarted】" + url);
super.onPageStarted(view, url, favicon);
}
@Override
public void onPageFinished(WebView view, String url) {
Log.i("onPageFinished", "【onPageFinished】" + url);
listenVideo();
super.onPageFinished(view, url);
// if (url.length() > 50)
}
@Override
public void onLoadResource(WebView view, String url) {
Log.i("onLoadResource", "【onLoadResource】" + url);//每一个资源（比如图片）的加载都会调用一次
// listenVideo();
super.onLoadResource(view, url);
}
@TargetApi(Build.VERSION_CODES.M)
@Override
public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) {
//访问指定的网址发生错误时回调，我们可以在这里做错误处理，比如再请求加载一次，或者提示404的错误页面
//如点击一个迅雷下载的资源时【ftp://*** -10 net::ERR_UNKNOWN_URL_SCHEME】
Log.i("bqt", "【onReceivedError】" + request.getUrl().toString() + " " + error.getErrorCode() + " " + error.getDescription());
super.onReceivedError(view, request, error);
}
@TargetApi(Build.VERSION_CODES.M)
@Override
public void onReceivedHttpError(WebView view, WebResourceRequest request, WebResourceResponse errorResponse) {
//HTTP错误具有> = 400的状态码。请注意，errorResponse参数中可能不提供服务器响应的内容。
//如【502 utf-8 text/html】【http://www.dy2018.com/favicon.ico 404 text/html】
Log.i("bqt", "【onReceivedHttpError】" + request.getUrl().toString() + " " + errorResponse.getStatusCode()
+ " " + errorResponse.getEncoding() + " " + errorResponse.getMimeType());
super.onReceivedHttpError(view, request, errorResponse);
}
@Override
public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
//HTTP错误具有> = 400的状态码。请注意，errorResponse参数中可能不提供服务器响应的内容。
//如，点击12306中的购票时【https://kyfw.12306.cn/otn/ 3 Issued to: CN=kyfw.12306.cn,***】
Log.i("bqt", "【onReceivedSslError】" + error.getUrl() + " " + error.getPrimaryError() + " " + error.getCertificate().toString());
// if (new Random().nextBoolean()) super.onReceivedSslError(view, handler, error);//默认行为，取消加载
// else
handler.proceed();//忽略错误继续加载
}
@Override
public void onScaleChanged(WebView view, float oldScale, float newScale) {
//应用程序可以处理改事件，比如调整适配屏幕
Log.i("bqt", "【onScaleChanged】" + "oldScale=" + oldScale + " newScale=" + newScale);
super.onScaleChanged(view, oldScale, newScale);
}
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
@Override
public WebResourceResponse shouldInterceptRequest(WebView view, final WebResourceRequest request) {
//每一次请求资源时都会回调。如果我们需要改变网页的背景，可以在这里处理。
//如果返回值为null，则WebView会照常继续加载资源。 否则，将使用返回的响应和数据。
// request.getRequestHeaders().put("User-Agent", "Mozilla/5.0 (Linux; Android 7.0; SM-G892A Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/67.0.3396.87 Mobile Safari/537.36");
request.getRequestHeaders().put("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.92 Safari/537.36");
StringBuilder sb = new StringBuilder();
sb.append("url: " + request.getUrl());
sb.append("headers: " + new Gson().toJson(request.getRequestHeaders()));
Log.e("shouldInterceptRequest", sb.toString() );
if (request.getUrl().toString().startsWith("http:")) {
return super.shouldInterceptRequest(view, new WebResourceRequest() {
@Override
public Uri getUrl() {
return Uri.parse(changeUrl(request.getUrl().toString()));
}
@Override
public boolean isForMainFrame() {
return request.isForMainFrame();
}
@Override
public boolean isRedirect() {
return request.isRedirect();
}
@Override
public boolean hasGesture() {
return request.hasGesture();
}
@Override
public String getMethod() {
return request.getMethod();
}
@Override
public Map<String, String> getRequestHeaders() {
return request.getRequestHeaders();
}
});
}
return super.shouldInterceptRequest(view, request);
}
@Override
public boolean shouldOverrideKeyEvent(WebView view, KeyEvent event) {
//给主机应用程序一次同步处理键事件的机会。如果应用程序想要处理该事件则返回true，否则返回false。
Log.i("bqt", "【shouldOverrideKeyEvent】" + event.getAction() + " " + event.getKeyCode());
return super.shouldOverrideKeyEvent(view, event);
}
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
@Override
public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
//貌似都还是调用的废弃的那个方法
// if (request.getRequestHeaders() == null) {
// request.re
// }
// request.getRequestHeaders().put("User-Agent", "User-Agent: Mozilla/5.0 (Linux; Android 7.0; SM-G892A Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/67.0.3396.87 Mobile Safari/537.36");
// Log.e("override", request.getUrl().toString() + " : " + new Gson().toJson(request.getRequestHeaders()));
String url = request.getUrl().toString();
if (!url.startsWith("http")) {
Log.e("override", request.getUrl().toString() + " : " + new Gson().toJson(request.getRequestHeaders()) + " : true");
return true;
}
Log.e("override", request.getUrl().toString() + " : " + new Gson().toJson(request.getRequestHeaders())+ " : false");
return super.shouldOverrideUrlLoading(view, request);
// return false;
}
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (!url.startsWith("http")) {
Log.e("override", url + " : true");
return true;
}
Log.e("override", url + " : false");
return super.shouldOverrideUrlLoading(view, url);
}
}
private boolean listened = false;
//onPageFinished调用这个方法，注意要长链接url的onPageFinished再回调。短链接时不要回调，不然会监听不到播放开始事件
private void listenVideo() {
mWebView.postDelayed(new Runnable() {
@Override
public void run() {
//全民适配
String quanMinJs = "javascript:(function() {document.getElementsByClassName('video-poster')[0].className += ' hide';document.getElementsByClassName('video-box')[0].className = 'video-box';var aa=document.getElementsByClassName('video-box')[0].className;alert(aa);})()";
mWebView.loadUrl(quanMinJs);
//火山适配
String huoShanJs = "javascript:(function() {document.getElementsByClassName('play-btn')[0].remove();document.getElementsByClassName('poster-container')[0].style.display=\"none\";document.getElementsByClassName('player-container')[0].style.display=\"block\";})()";
mWebView.loadUrl(huoShanJs);
//播放监听
String jScript1 = "javascript:(function() {var eleVideo=document.getElementsByTagName('video')[0];eleVideo.addEventListener(\"play\",function(){alert(\"开始播放\");});eleVideo.addEventListener(\"pause\",function(){alert(\"暂停播放\");});eleVideo.addEventListener(\"ended\",function(){alert(\"播放结束\")});})()";
mWebView.loadUrl(jScript1);
// //去除播放循环，自动开始
String jScript = "javascript:(function() {var eleVideo=document.getElementsByTagName('video')[0];eleVideo.loop=false;eleVideo.load();eleVideo.play();})()";
mWebView.loadUrl(jScript);
}
},500l);
}
public String changeUrl(String url) {
if (url.startsWith("http:")) {
return "https:" + url.substring(5);
}
return url;
}
@Override
public void onBackPressed() {
if(mWebView.canGoBack()) {
mWebView.goBack();
} else {
super.onBackPressed();
}
}
}
本文地址：https://blog.csdn.net/qq_25462179/article/details/108833242
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