[codenameone-discussions] Re: how to get byte array from com.codename1.ui.Image in memory

[shop . service . assistant]

On Tuesday, December 11, 2018 at 11:16:22 PM UTC-5, Shai Almog wrote:
>
> What's RenderedImage? That's an AWT class.
> Try:
>
> ImageIO.save(img, outputStream, ImageIO.FORMAT_JPEG, 0.9f);
>

Please disregard the  RenderedImage cast as this was copied from my Java 
Swing project

Getting "error: non-static method save(Image,OutputStream,String,float) 
cannot be referenced from a static context" 

I have attached a basic class MyApplication to demonstrate the error.

Thanks in advance.

-- 
You received this message because you are subscribed to the Google Groups 
"CodenameOne Discussions" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to codenameone-discussions+unsubscr...@googlegroups.com.
Visit this group at https://groups.google.com/group/codenameone-discussions.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/codenameone-discussions/46bd645a-4375-4b90-bf4c-7cebbb4b0d04%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

package com.mycompany.myapp;

import com.codename1.io.Log;
import static com.codename1.ui.CN.*;
import com.codename1.ui.Dialog;
import com.codename1.ui.Form;
import com.codename1.ui.Label;
import com.codename1.ui.Toolbar;
import com.codename1.ui.layouts.BoxLayout;
import com.codename1.ui.plaf.UIManager;
import com.codename1.ui.util.Resources;
import java.io.ByteArrayOutputStream;

/**
 * This file was generated by <a href="https://www.codenameone.com/";>Codename
 * One</a> for the purpose of building native mobile applications using Java.
 */
public class MyApplication {

    private Form current;
    private Resources theme;

    public void init(Object context) {
        // use two network threads instead of one
        updateNetworkThreadCount(2);

        theme = UIManager.initFirstTheme("/theme");

        // Enable Toolbar on all Forms by default
        Toolbar.setGlobalToolbar(true);

        // Pro only feature
        Log.bindCrashProtection(true);

        addNetworkErrorListener(err -> {
            // prevent the event from propagating
            err.consume();
            if (err.getError() != null) {
                Log.e(err.getError());
            }
            Log.sendLogAsync();
            Dialog.show("Connection Error", "There was a networking error in the connection to " + err.getConnectionRequest().getUrl(), "OK", null);
        });
    }

    public byte[] getBytesFromImage(com.codename1.ui.Image image) {
        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();

        try {
            com.codename1.ui.util.ImageIO.save(image, outputStream, com.codename1.ui.util.ImageIO.FORMAT_JPEG, 9.0f);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return outputStream.toByteArray();
    }

    public void start() {
        if (current != null) {
            current.show();
            return;
        }
        Form hi = new Form("Hi World", BoxLayout.y());
        hi.add(new Label("Hi World"));
        hi.show();
    }

    public void stop() {
        current = getCurrentForm();
        if (current instanceof Dialog) {
            ((Dialog) current).dispose();
            current = getCurrentForm();
        }
    }

    public void destroy() {
    }

}