Question

我正在使用“共享首选项”来存储用户数据，并在电子商务网站的Web视图应用中设置“登录状态”。用户可以通过登录URL或结帐页面登录。我面临的问题我无法在用户成功登录后将登录状态设置为“True”，因此我可以检索其显示的用户名为＆＃34; False＆＃34;。

编辑：在发布问题后，我能够找到登录URL的部分解决方案，将状态设置为true，但CARTURL不起作用。我定义了isRedirected = true;并设置条件以获得正确的状态。

我在编辑后重新发布代码：

        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            Log.e(TAG, "should override url loading" + url);
            view.loadUrl(url);

            isRedirected = true;
            return true;
        }

public void onPageFinished(WebView view, String url) {
    //webView.setClickable(true);menuBtn.setClickable(true);cartImg.setClickable(true);logoImg.setClickable(true);
    Log.e(TAG, "on page finished" + url);
    Log.e(TAG, "is logged in==" + isLoggedin);
    isRedirected = true;
    String isLoggedin = "false";
    if(url.equals(Constants.ACCOUNTURL) && isRedirected && isLoggedin.equals("false")) {
        Log.e(TAG, "reload");
        //webView.loadUrl(Constants.ACCOUNTEDITURL);
        SharedPreferences pref = getApplicationContext().getSharedPreferences("Login", MODE_PRIVATE);
        SharedPreferences.Editor editor = pref.edit();
        editor.putString("isLogedin", "true");
        editor.commit();
        setWelcome();
        Toast toast = Toast.makeText(MainActivity.this, "You have signed in", Toast.LENGTH_LONG);
        toast.setGravity(Gravity.CENTER, 0, 0);
        toast.show();
    };

    if(url.equals(Constants.CARTURL) && isRedirected && isLoggedin.equals("false")) {
          Log.e(TAG, "Cart Login");
          //webView.loadUrl(Constants.ACCOUNTEDITURL);
          SharedPreferences pref = getApplicationContext().getSharedPreferences("Login", MODE_PRIVATE);
          SharedPreferences.Editor editor = pref.edit();
          editor.putString("isLogedin", "true");
          editor.commit();
          setWelcome();
          Toast toast = Toast.makeText(MainActivity.this, "You have signed in", Toast.LENGTH_LONG);
          toast.setGravity(Gravity.CENTER, 0, 0);
          toast.show();
    };

    //if(url.equals(Constants.LOGOUTURL) && isLoggedin.equals("true")) {
    if(url.equals(Constants.LOGOUTURL)) {
        Log.e(TAG, "logging out-----------------");
        SharedPreferences pref = getApplicationContext().getSharedPreferences("Login", MODE_PRIVATE);
        SharedPreferences.Editor editor = pref.edit();
        editor.putString("isLogedin", "false");
        //editor.clear();
        editor.commit();
        setWelcome();
        Toast toast = Toast.makeText(MainActivity.this, "You have logged out", Toast.LENGTH_LONG);
        toast.setGravity(Gravity.CENTER, 0, 0);
        toast.show();
        //return;
    }

    if(isLoggedin.equals("true")) {
        Log.e(TAG, "in get name-----------------");
        mainView.addJavascriptInterface(new myJavaScriptInterface(), "CallToAnAndroidFunction");
        //String getnamejs = "(document.getElementById('input-firstname').value);";
        String getnamejs = "(document.getElementById('app_customer_name').innerHTML);";
        mainView.loadUrl("javascript: window.CallToAnAndroidFunction.getUserName" + getnamejs);
    }

非常感谢您的帮助，谢谢您提前。

Answer 1

你的意思是字符串变量isLoggedin总是假的吗？你能提一下在哪里为变量isLoggedin分配值。

Answer 2

请尝试下面的代码，我用boolean修改了putString。

boolean isLoggedin;
SharedPreferences pref =
            getApplicationContext().getSharedPreferences("Login", MODE_PRIVATE);

public boolean shouldOverrideUrlLoading(WebView view, String url) {
    Log.e(TAG, "should override url loading" + url);
    view.loadUrl(url);

    isRedirected = true;
    return true;
}

public void onPageFinished(WebView view, String url) {

    Log.e(TAG, "on page finished" + url);

    isLoggedin = pref.getBoolean(“isLoggedin”, false);

    if (url.equals(Constants.ACCOUNTURL) && url.equals(Constants.CARTURL) && !isLoggedin) {
        Log.e(TAG, "reload");
        SharedPreferences.Editor editor = pref.edit();

        editor.putBoolean(“isLoggedin", true);
                editor.commit();
        setWelcome();

        Toast toast = Toast.makeText(MainActivity.this, "You have signed in", Toast.LENGTH_LONG);
        toast.setGravity(Gravity.CENTER, 0, 0);
        toast.show();

        Log.e(TAG, "in get name-----------------");
        mainView.addJavascriptInterface(new myJavaScriptInterface(), "CallToAnAndroidFunction");
        //String getnamejs = "(document.getElementById('input-firstname').value);";
        String getnamejs = "(document.getElementById('app_customer_name')[0].innerHTML);";
        mainView.loadUrl("javascript: window.CallToAnAndroidFunction.getUserName" + getnamejs);
    }
    //if(url.equals(Constants.LOGOUTURL) && isLoggedin) {
    if (url.equals(Constants.LOGOUTURL)) {
        Log.e(TAG, "logging out-----------------");

        SharedPreferences.Editor editor = pref.edit();
        editor.putBoolean("isLoggedin", false);
        //editor.clear();
        editor.commit();
        setWelcome();

        Toast toast = Toast.makeText(MainActivity.this, "You have logged out", Toast.LENGTH_LONG);
        toast.setGravity(Gravity.CENTER, 0, 0);
        toast.show();
        //return;
    }

如果有帮助，请告诉我！

成功登录后，Android WebView将登录状态设置为True

2 个答案: