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Wolfram Rittmeyer
Lives in Münster, Germany
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Wolfram Rittmeyer

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Does your app have personal content? Help your users find it directly from the Google app for Android, even when they’re offline.

We’ve opened up early access to our updated Android API for Firebase App Indexing, with new functionality to index personal content from your app.

Content from your app can then appear for relevant queries in the Google app on Android in the new “In Apps” tab, or as an autocomplete suggestion: http://goo.gl/fk1STx

Searching personal results happens entirely on users’ phones, so they can search even when not connected to WiFi or cellular network.

We’re starting with an initial set of apps, and will continue expanding over the coming months. If you’re interested in early access, let us know at http://g.co/appindexing/personal.
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Wolfram Rittmeyer

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Over the past months I have been trying to figure out RxJava's SyncOnSubscribe and recently it finally clicked, so I decided to write it down so that I can read it again in the future ;)

http://www.littlerobots.nl/blog/Note-to-self-RxJava-SyncOnSubscribe/

#androiddev #gde #blogpost #android
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Wolfram Rittmeyer

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I often see confusion around Android View constructors. Why are there four of them? What does each parameter do? Which constructors do I need to implement? tl;dr If you just want quick, practical advice, here's a few good guidelines: Use View(Context) for creating Views in code. Override View(
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Wolfram Rittmeyer

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The whole WEB development ist just a big mess. Stonage. But I guess makes us developer grow grey hair and earn money.
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Wolfram Rittmeyer

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We had a closer look at SQLCipher 3.5.0, which brings Android N compatibility and results in smaller APK sizes. There is one drawback however...
SQLCipher 3.5.0 with support for Android N was released yesterday. Previous versions of SQLCipher linked to non-public Android libraries, a practice Google warned about earlier. Android N is getting stricter about linking to platform libraries. To comply with Android N, the SQLCipher authors did ...
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On Wednesday, June 22nd, we're organizing I/O Extended Extended, a meetup full of introductions to topics that were announced during I/O 2016.

We're looking for community members to take the stage! Want to share a few words about updates to Android Studio, new additions to the Support Library, a new beta preview for N, Firebase, Android Wear 2.0 or something else?

A presentation can be as informal as you like, and anywhere from 5 to 15 minutes long.

https://docs.google.com/forms/d/1MUJDm_eThzq1Fg4YBEZiphMUGQHDODDxU7zHCs8ogYk/viewform
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Google I/O Extended ExtendedCare to share on what you have learned from I/O '16? Please answer these questions and we'll get back to you!
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Thanks, +trivikram gavara !
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Wolfram Rittmeyer

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Did you try to align one view to another one's center in ConstraintLayout?

Currently that's not supported out of the box. In this quick tip I'm showing how to achieve this with a little trick.
This post shows how to align one view's edge to another view's center in Android's ConstraintLayout - even though this is not supported out of the box.
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FINALLY it is here! Our Call For Papers for our #DevFest   that will take place the weekend of October 22-23! We are looking forward to YOUR contribution! #DevFestDUS  2014 was a huge success - and now, 2016, we are back again! Submit a talk - and help spread the word, the #CfP   is open to anyone! We welcome speakers from other cities and regions as well!

Don't wait, submit your talk as soon as possible!
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#GDGDUS - GDG Düsseldorf - and WTM - Women Techmakers Düsseldorf have our next meetup coming up - July 27 at Garagespace Bilk

First an introduction to Progressive Web apps and then we will talk Google Nearby API, Edystone, beacons and Internet of Things in an Android talk.

Christopher, who attended the Progressive Web Apps event in Amsterdam earlier this year will guide us through Progressive Webapps, and Pascal will present his talk from Droidcon in Berlin in June, "Let's get physical - with Nearby and Eddystone" .

And what IS a "Progressive Web App"? In short:

• Progressive - Work for every user, regardless of browser choice because they’re built with progressive enhancement as a core tenet.

• Responsive - Fit any form factor: desktop, mobile, tablet, or whatever is next.

• Connectivity independent - Enhanced with service workers to work offline or on low quality networks.

• App-like - Feel like an app to the user with app-style interactions and navigation because they’re built on the app shell model.

In short, Progressive Web Apps are enablers, especially with the offline functionality, improving the user experience for your users and potentially increasing business for business owners. As designers and developers we need to understand the latest and the greatest - and Christopher will give us our first introduction.

Pascal Welsch needs no further introduction, an experienced Android developer who is a long time member of GDG and have presented many interesting topics - now Pascal is back.

We will be learning more about Edystone beacons, the nearby API (Trello uses this, for example) and lots more. Put a beacon on your coffee mug and never lose it again?

As a little add-on, a surprise, we also have an interesting an inspiring talk about something completely different - related to tech, of course, but this one takes beyond the traditional space - come and join and see for yourself.

As always, networking, having a snack, catching up with everyone and getting engaged in new and interesting topics is half the fun - so come and join us even if you don't immediately feel you can use what you learn from the talks, I can guarantee that you'll always learn something, if you come with an open mind and bring a smile. Our discussions are always interesting.

Sign up either here or via Meetup, http://www.meetup.com/Google-Developer-Group-Dusseldorf/events/232704755/

See you on the 27:th!
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Wolfram Rittmeyer

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I have just published a post on Android's new ConstraintLayout:

http://www.grokkingandroid.com/thoughts-on-constraintlayout-and-design-editor/

It's not about how to actually use it (see Google's code lab or other posts for that). But it's about what I like, what I dislike and what enhancements I would like to see.

Codelab and introductory posts:
[1] https://codelabs.developers.google.com/codelabs/constraint-layout/index.html
[2] https://medium.com/exploring-android/exploring-the-new-android-constraintlayout-eed37fe8d8f1#.jg4pc8qgd
[3] https://riggaroo.co.za/constraintlayout-101-new-layout-builder-android-studio/
[4] https://blog.stylingandroid.com/category/layouts/constraintlayout/
At this year's IO Google introduced the new ConstraintLayout and it's totally revamped layout editor. Here's my take on the merits and flaws of both.
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No. It's still much slower. I still need to do more extensive testing - especially with deeper nested layouts.
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Wolfram Rittmeyer

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"European Regulators are about to decide whether to give big telecoms corporations the power to influence what we can (and can’t) do online. Europe urgently needs clear net neutrality guidelines to protect our freedoms and rights online. We have until July to help Europe protect the open Internet. "
Join us and take action! Send a message to your regulator
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Software-Developer, Android-Geek
Introduction
Interested in all things regarding Android - especially everything about developing for Android.

I am also a Java EE-developer and happy GlassFish user.
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Two lovely sons: Linus and Niklas
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Software-Developer
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Male
Birthday
June 1
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