Enable the use of strings when ActivityStarter extra requires a Uri argument

[TIMAI2]

I did actually create a small extension that provides for sending an attachment with Gmail:

uk.co.metricrat.sendmailattach.aix (4.7 KB)
​

@TIMAI2

package uk.co.metricrat.sendmailattach;

/*
https://developer.android.com/guide/components/intents-common#ComposeEmail
https://github.com/mit-cml/appinventor-sources/blob/ce385622ff1ab810df4f3e6bd0200a80574fc171/appinventor/components/src/com/google/appinventor/components/runtime/ActivityStarter.java#L546
 */

import android.app.*;
import android.content.*;
import android.net.*;
import com.google.appinventor.components.annotations.*;
import com.google.appinventor.components.runtime.*;
import com.google.appinventor.components.runtime.util.*;

public class SendMailAttach extends AndroidNonvisibleComponent {

  final Activity activity;

  public SendMailAttach(ComponentContainer container) {
    super(container.$form());
    this.activity = container.$context();
  }

  @SimpleFunction(description = "Opens Share (pick email app) with Single Attachment")
  public void ComposeEmail(YailList addresses, String subject, String message, String attachment) {

    Uri myUri = Uri.parse(attachment);

    Intent mailIntent = new Intent();
    mailIntent.setAction(Intent.ACTION_SEND);
    mailIntent.setType("*/*");
    mailIntent.putExtra(Intent.EXTRA_EMAIL, addresses.toStringArray());
    mailIntent.putExtra(Intent.EXTRA_SUBJECT, subject);
    mailIntent.putExtra(Intent.EXTRA_TEXT, message);
    mailIntent.putExtra(Intent.EXTRA_STREAM, myUri);
    if (mailIntent.resolveActivity(this.activity.getPackageManager()) != null) {
      this.activity.startActivity(mailIntent);
    }
  }

}

You may want to develop on from there....