如何在安卓WebView中访问WhatsAppWeb？

import android.os.Bundle;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;

public class MainActivity extends AppCompatActivity {
    private WebView webView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        webView = findViewById(R.id.webView);
        WebSettings webSettings = webView.getSettings();
        webSettings.setJavaScriptEnabled(true); // 启用JavaScript支持

        // 设置WebViewClient，以便在WebView内部加载网页
        webView.setWebViewClient(new WebViewClient());

        // 检查设备上是否安装了WhatsApp应用
        if (isWhatsAppInstalled()) {
            // 加载WhatsAppWeb的网页地址
            webView.loadUrl("https://web.whatsapp.com");
        } else {
            // 提示用户安装WhatsApp应用
            Toast.makeText(this, "请先安装WhatsApp应用", Toast.LENGTH_SHORT).show();
        }
    }

    // 检查设备上是否安装了WhatsApp应用
    private boolean isWhatsAppInstalled() {
        PackageManager packageManager = getPackageManager();
        try {
            packageManager.getPackageInfo("com.whatsapp", PackageManager.GET_ACTIVITIES);
            return true;
        } catch (PackageManager.NameNotFoundException e) {
            return false;
        }
    }
}