Android 我的webview在jelly bean和kitkat版本中出错，但在棒棒糖和更高版本中工作良好。我如何为果冻豆和kitkat制作它？

以下是我的代码：

public void mywebview(){
try {
    webview.setBackgroundColor(0);
    webview.getSettings().setJavaScriptEnabled(true);
    webview.addJavascriptInterface(new MyJavaScriptInterface(), "MYOBJECT");
    webview.getSettings().setAllowUniversalAccessFromFileURLs(true);
    webview.getSettings().setUseWideViewPort(true);
    webview.getSettings().setLoadWithOverviewMode(true);
    webview.getSettings().setBuiltInZoomControls(true);
    webview.getSettings().setLayoutAlgorithm(WebSettings.LayoutAlgorithm.SINGLE_COLUMN);

    webview.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
    webview.getSettings().setAllowFileAccess(true);
    webview.canScrollHorizontally(1);
    webview.setInitialScale(1);
    webview.getSettings().setDefaultFontSize(2);

    webview.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            webview.setHorizontalScrollBarEnabled(true);
            webview.setInitialScale(1);
            return false;
        }
    });

    webview.setWebViewClient(new WebViewClient() {


        @Override
        public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
            Toast.makeText(view.getContext(), "Authentication Error", Toast.LENGTH_LONG).show();
            CookieManager cookieManager = CookieManager.getInstance();
            cookieManager.setCookie(USERNAME, PASSWORD);

            super.onReceivedError(view, errorCode, description, failingUrl);
        }

        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {

                return super.shouldOverrideUrlLoading(view, url);
            }
        }

        public void onReceivedHttpAuthRequest(WebView view, HttpAuthHandler handler, String host, String realm) {
        }

        @Override
        public WebResourceResponse shouldInterceptRequest(WebView view, String url) {
            SharedPreferencesManager mgr = SharedPreferencesManager.getInstance();
            StringBuilder stringBuilder = new StringBuilder();
            DefaultHttpClient client = new DefaultHttpClient();
            HttpGet httpGet = new HttpGet(URL);
            try {
                HttpResponse response = client.execute(httpGet);
                StatusLine statusLine = response.getStatusLine();

                int statusCode = statusLine.getStatusCode();
                if (statusCode == 200) {

                }

            } catch (Exception e) {

            }
            CookieStore cookieStore = mgr.getCookieStore();
            Cookie cookie = cookieStore.getCookies().get(1);

            CookieManager cookieMgr = CookieManager.getInstance();
            cookieMgr.setCookie(url, cookie.getName() + "=" + cookie.getValue());
            CookieSyncManager.getInstance().sync();

            return super.shouldInterceptRequest(view, url);
        }
    });

    webCookieManager = CookieManager.getInstance();

    webCookieManager.setAcceptCookie(true);
    CookieStore cookieStore = mgr.getCookieStore();
    Cookie cookie = cookieStore.getCookies().get(1);

    webCookieManager.setCookie(URL, cookie.getName() + "=" + cookie.getValue() + ";");
    CookieSyncManager.getInstance().sync();
    webview.loadUrl(URL);
} catch (Exception e) {
    e.printStackTrace();
}
}

webresourceresponse似乎只与棒棒糖及以上版本兼容。有没有一种方法可以使它适用于较低版本，即果冻豆和kitkat？此外，我所说的混乱是指它看起来是垂直对齐的，被塞进一个视图中，不像棒棒糖+版本那样，视图看起来像预期的那样组织得体。以下是我的xml：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/myholder"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#000000"
     >
 <WebView
        android:id="@+id/my_webview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        />
</RelativeLayout>

---

我认为没有一种方法可以改变这一点，除非您使用旧API的旧方法，否则最好/唯一的方法是编写特定于版本的代码，一个用于jelly bean和kitkat，另一个用于lollypop和更高版本。我没有研究过使其在较低版本上工作的代码，但解决方法是检查SDK版本，并为特定版本执行代码

示例：代码修改自：

---

显然，这段代码必须放在初始化web视图的位置，您需要为其他SDK版本创建另一个webview类。

我该怎么做？这个例子太模糊了，但这不是我面临的问题。问题是，如果PublicWebResourceResponse应该InterceptRequestWebView视图，字符串url可以以某种方式向后兼容吗？

// System information
private final int sdkVersion = Build.VERSION.SDK_INT;
// If you want to go really old:
// (actually, there is a question about how this issue should be handled
// systematically. Suggestions welcome.)
// final int sdkVersion = Integer.parseInt(Build.VERSION.SDK);

// For meaning of other variable, see notification documentation on the android website.
if (sdkVersion > Build.VERSION_CODES.LOLLIPOP) {
    myWebviewForLollipopAndAbove webview = new myWebviewForLollipopAndAbove();
    //Do things with the webview, finish implementing
}
else {
    myWebviewForBelowLollipop webview = new myWebviewForBelowLollipop();
    //Do things with the webview, finish implementing
}