'Hide sound recording notification programatically in Android 12

In Android 12, when I start recording a sound, it appears to the user that my application is recording a sound. How can I hide this notification programmatically?

Solution 1:^[1]

While writing the question, I found a hacky solution:

webView.getEngine().getLoadWorker().stateProperty().addListener((o, oldState, newState) -> {
    if(newState == Worker.State.SUCCEEDED) {
        try {
            String newContent = new String(Files.readAllBytes(Paths.get(new URI(getClass().getResource("/test.html").toExternalForm()))), "UTF-8");
            webView.getEngine().executeScript("document.documentElement.innerHTML = '" + newContent.replace("'", "\\'").replace("\n", "\\n") + "'");
        } catch(Exception e) {
            e.printStackTrace();
        }
    }
});

Solution 2:^[2]

I found another simple solution using Spark Java:

WebViewTest.java

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.web.WebView;
import javafx.stage.Stage;
import spark.Spark;
import spark.staticfiles.StaticFilesConfiguration;

public class WebViewTest extends Application {

    public static void main(String[] args) {
        Application.launch(args);
    }

    @Override
    public void start(Stage stage) {

        Spark.port(8000);

        StaticFilesConfiguration staticHandler = new StaticFilesConfiguration();
        staticHandler.configure("/");
        Spark.before((req, res) -> {
            if(req.url().endsWith(".html")) staticHandler.putCustomHeader("Content-Type", "text/html; charset=UTF-8");
            else staticHandler.putCustomHeader("Content-Type", null);
            staticHandler.consume(req.raw(), res.raw());
        });

        Spark.init();

        WebView webView = new WebView();

        webView.getEngine().load("http://localhost:8000/test.html");

        Scene scene = new Scene(webView, 500, 500);
        stage.setScene(scene);
        stage.setTitle("WebView Test");
        stage.show();
    }

}

test.html

<!DOCTYPE html>
<html>
    <body>
        <p>RIGHT SINGLE QUOTATION MARK: ’</p>
        <p>Image:</p>
        <img src="image.png">
    </body>
</html>

image.png

Result:

Sources

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Source: Stack Overflow

Solution	Source
Solution 1	Henry Sanger
Solution 2	Henry Sanger

'Hide sound recording notification programatically in Android 12

Solution 1:[1]

Solution 2:[2]

Sources

Related Questions

Solution 1:^[1]

Solution 2:^[2]