1. 首先要在WebView的setWebChromeClient()方法中添加如下代码，以支持汉堡菜单的展示及点击事件：

webView.setWebChromeClient(new WebChromeClient() { @Override public boolean onShowFileChooser(WebView webView, ValueCallback filePathCallback, FileChooserParams fileChooserParams) { if (mUploadMessage != null) { mUploadMessage.onReceiveValue(null); mUploadMessage = null; }

    mUploadMessage = filePathCallback;

    Intent intent = fileChooserParams.createIntent();
    try {
        startActivityForResult(intent, REQUEST_SELECT_FILE);
    } catch (ActivityNotFoundException e) {
        mUploadMessage = null;
        Toast.makeText(mActivity, R.string.toast_upload_file_failed, Toast.LENGTH_SHORT).show();
        return false;
    }
    return true;
}

@Override
public boolean onCreateWindow(WebView view, boolean isDialog, boolean isUserGesture, Message resultMsg) {
    WebView.HitTestResult result = view.getHitTestResult();
    String data = result.getExtra();
    Context context = view.getContext();
    Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(data));
    context.startActivity(browserIntent);
    return false;
}

});

2. 然后在WebView的setWebViewClient()方法中添加如下代码，以支持汉堡菜单在WebView中的正常显示和点击事件：

webView.setWebViewClient(new WebViewClient() { @Override public void onPageStarted(WebView view, String url, Bitmap favicon) { super.onPageStarted(view, url, favicon); mProgressBar.setVisibility(View.VISIBLE); }

@Override
public void onPageFinished(WebView view, String url) {
    super.onPageFinished(view, url);
    mProgressBar.setVisibility(View.GONE);
}

@Override
public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
    if (request.getUrl().toString().startsWith("tel:")) { //点击电话号码
        if (ActivityCompat.checkSelfPermission(mActivity, Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(mActivity, new String[]{Manifest.permission.CALL_PHONE}, REQUEST_CALL_PHONE_PERMISSION);