Is it possible to adjust capacitors webview configuration?

[xzilja]

I was looking for native methods to set some configuration on capacitors webview i.e. https://developer.apple.com/documentation/webkit/wkwebviewconfiguration#//apple_ref/doc/c_ref/WKWebViewConfiguration in ios and equivalent in android.

But I don't see anything atm. I'm not looking for a plugin that exposes this to js, rather something I can do in my AppDelegate before app initis.

Is this exposed somehow in capacitor 2 / 3?

[jcesarmobile]

In Capacitor 3 you can subclass CAPBridgeViewController and override webViewConfiguration(for:) to modify the configuration before the web view gets created.

[lincolnthree]

On android, I believe this can be done in your MainActivity.java class:

package com.maritlabs.topdecked.mtg;

import android.os.Build;
import android.os.Bundle;
import android.os.PersistableBundle;
import android.webkit.WebSettings;
import android.webkit.WebView;

import androidx.annotation.Nullable;

import com.getcapacitor.BridgeActivity;

public class MainActivity extends BridgeActivity {
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
  }

  @Override
  public void onPostCreate(@Nullable Bundle savedInstanceState, @Nullable PersistableBundle persistentState) {
    super.onPostCreate(savedInstanceState, persistentState);

    WebView webView = getBridge().getWebView();
    WebSettings settings = webView.getSettings();

   // Customize things here...
  }
}

[xzilja]

@jcesarmobile I glanced at webViewConfiguration(for:) and it is missing config I was hoping to apply for tintColor. I've tried handling this in css realm, but safari has weird bug where it changes to default tint color (blue) if input has transform matrix. I wanted to see if this can be solved by setting wkwebviews tintColor perhaps.

Also wanted to ask what would be right place / how to correctly extend CAPBridgeViewController to set this. My initial instinct was AppDelegate, but I believe that is not correct (I have limited knowledge in native realm)

[jcesarmobile]

webViewConfiguration is for the WKWebViewConfiguration, that can only be set on WKWebView creation.
Any other WKWebView properties can be changed at runtime, that's already possible at the moment from any plugin as they have access to the WKWebView.
On Capacitor 3 you'll also be able to provide your own WKWebView subclass if needed, but shouldn't be needed for setting the tintColor.