目前ios现在都需要换成https请求，现在遇到一个webview加载https的有一些问题及解决办法。
1、webview加载https空白页面
解决办法：
@Override public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) { handler.proceed(); // Ignore SSL certificate errors }
或者可以这么写：
@Override public void onReceivedSslError(WebView view, final SslErrorHandler handler, SslError error) { final AlertDialog.Builder builder = new AlertDialog.Builder(this); String message = "SSL Certificate error."; switch (error.getPrimaryError()) { case SslError.SSL_UNTRUSTED: message = "The certificate authority is not trusted."; break; case SslError.SSL_EXPIRED: message = "The certificate has expired."; break; case SslError.SSL_IDMISMATCH: message = "The certificate Hostname mismatch."; break; case SslError.SSL_NOTYETVALID: message = "The certificate is not yet valid."; break; } message += " Do you want to continue anyway?"; builder.setTitle("SSL Certificate Error"); builder.setMessage(message); builder.setPositiveButton("continue", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { handler.proceed(); } }); builder.setNegativeButton("cancel", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { handler.cancel(); } }); final AlertDialog dialog = builder.create(); dialog.show(); }
可能遇到的问题：有可能会遇到有的图片加载不出来，那是因为webview 从Lollipop(5.0)开始webview默认不允许混合模式，https当中不能加载http资源，需要设置开启。
解决办法：
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { settings.setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW); }
