解决webview内的iframe中的事件不可用的问题

 webView.setWebViewClient(new WebViewClient() {
   @Override
   public boolean shouldOverrideUrlLoading(WebView view, String url) {
    return super.shouldOverrideUrlLoading(view, url);
   }

mWebView.setWebViewClient(new WebViewClient() {
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
}
@Override
public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
handler.proceed();
super.onReceivedSslError(view, handler, error);
}
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) { return super.shouldOverrideUrlLoading(view, url);
}
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
@Override
public WebResourceResponse shouldInterceptRequest(WebView view, WebResourceRequest request) {
return super.shouldInterceptRequest(view, request);
}
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
if (null != title && null != view && TextUtils.isEmpty(mTitle))
title.setText(view.getTitle());
}
});
mWebView.setWebChromeClient(new WebChromeClient() {
@Override
public void onProgressChanged(WebView webView, int i) {
super.onProgressChanged(webView, i);
}
@Override
public boolean onJsConfirm(WebView view, String url, String message, android.webkit.JsResult result) {
return super.onJsConfirm(view, url, message, result);
}
@Override
public void onShowCustomView(View view, CustomViewCallback callback) {
super.onShowCustomView(view, callback);
}
@Override
public void onHideCustomView() {
}
@Override
public boolean onShowFileChooser(WebView webView, android.webkit.ValueCallback<Uri[]  filePathCallback, FileChooserParams fileChooserParams) {
return super.onShowFileChooser(webView, filePathCallback, fileChooserParams);
}
@Override
public boolean onJsAlert(WebView view, String url, String message, android.webkit.JsResult result) {
return super.onJsAlert(view, url, message, result);
}
@Override
public void onReceivedTitle(WebView view, String title) {
super.onReceivedTitle(view, title);
}
}
);
WebSettings mWebSettings = mWebView.getSettings();
mWebSettings.setAllowFileAccess(true);
mWebSettings.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.NARROW_COLUMNS);
mWebSettings.setSupportZoom(true);
mWebSettings.setBuiltInZoomControls(true);
mWebSettings.setUseWideViewPort(true);
mWebSettings.setSupportMultipleWindows(false);
mWebSettings.setAppCacheEnabled(true);
mWebSettings.setDomStorageEnabled(true);
mWebSettings.setJavaScriptEnabled(true);
mWebSettings.setGeolocationEnabled(true);
mWebSettings.setAppCacheMaxSize(Long.MAX_VALUE);
mWebSettings.setAppCachePath(getDir("appcache", 0).getPath());
mWebSettings.setDatabasePath(getDir("databases", 0).getPath());
mWebSettings.setGeolocationDatabasePath(getDir("geolocation", 0)
.getPath());
mWebSettings.setPluginState(WebSettings.PluginState.ON_DEMAND);
mWebSettings.setLoadWithOverviewMode(true);
mWebSettings.setCacheMode(WebSettings.LOAD_NO_CACHE);
String mUserAgent = mWebSettings.getUserAgentString();
mWebSettings.setUserAgentString(mUserAgent + " App/AppName");
syncCookie();
mWebSettings.setUseWideViewPort(true);
mWebSettings.setLoadWithOverviewMode(true);
if (Build.VERSION.SDK_INT  = Build.VERSION_CODES.KITKAT) {
mWebSettings.setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);
} else {
mWebSettings.setCacheMode(WebSettings.LOAD_DEFAULT);
}
if (Build.VERSION.SDK_INT  = Build.VERSION_CODES.HONEYCOMB) {
mWebSettings.setDisplayZoomControls(false);
}
if (Build.VERSION.SDK_INT  = Build.VERSION_CODES.KITKAT) {
mWebSettings.setLoadsImagesAutomatically(true);
} else {
mWebSettings.setLoadsImagesAutomatically(false);
}
if (Build.VERSION.SDK_INT  = Build.VERSION_CODES.LOLLIPOP) {
mWebSettings.setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);
}
if (android.os.Build.VERSION.SDK_INT  = Build.VERSION_CODES.LOLLIPOP)
CookieManager.getInstance().setAcceptThirdPartyCookies(mWebView, true);
mWebView.setScrollBarStyle(WebView.SCROLLBARS_INSIDE_OVERLAY);
mWebView.setHorizontalScrollBarEnabled(false);
mWebView.setHorizontalFadingEdgeEnabled(false);
mWebView.setVerticalFadingEdgeEnabled(false);
mWebView.requestFocus();
private void syncCookie() {
CookieSyncManager.createInstance(this);
CookieManager cookieManager = CookieManager.getInstance();
cookieManager.setAcceptCookie(true);
CookieSyncManager.getInstance().sync();
}