{"id":7549,"date":"2025-11-23T21:31:16","date_gmt":"2025-11-23T21:31:16","guid":{"rendered":"https:\/\/robertjwallace.com\/?p=7549"},"modified":"2025-11-30T14:54:04","modified_gmt":"2025-11-30T14:54:04","slug":"new-android-trick-app","status":"publish","type":"post","link":"https:\/\/robertjwallace.com\/es\/new-android-trick-app\/","title":{"rendered":"New Android Trick App"},"content":{"rendered":"

The Future of Card Magic is Digital<\/strong><\/p>\n\n\n\n

You’ve just performed the perfect classic card trick: a spectator selects a card, keeps it secret, and you’re ready for the big reveal. But instead of fumbling through your deck, you pull out your phone, launch your QR code app, and hand it to them. “Scan this,” you say. “Yesterday, I had a strange feeling… that your<\/em> card would be chosen.” They scan the code, open the dedicated webpage that pops up, and there it is: their chosen card<\/strong>, staring back at them from the screen. Forget the deck\u2014the future of impossible prediction is now woven into the digital world.<\/p>\n\n\n\n\n\n\n\n

As readers of my posts will know, I have been exploring creating my own Android apps using AI and Cordova<\/strong>.<\/p>\n\n\n\n

Apache Cordova<\/strong> is a genius system that lets me build full mobile apps for any platform\u2014whether it’s Android or iOS\u2014without having to learn complex native languages. It simply wraps up basic web files (HTML, CSS, and JavaScript<\/strong>) and turns them into an installable app that can access the phone\u2019s native features like the camera or GPS using special bridges called plugins<\/strong>.<\/p>\n\n\n\n

The best part? I don’t need to know HTML, CSS, or JavaScript at a deep level. The AI does all the heavy lifting. My process is now simplified to just a few steps: first, I install the Cordova tools. Then, I give a conversational prompt to the AI, such as: “Create the code for a simple one-page app with a blue background and a button that, when clicked, opens the camera.<\/strong>” The AI generates the required web files, I drop them into the Cordova project folder, and then I use a single command like cordova build android<\/code>. The AI does the coding; I just handle the assembly and deployment. It\u2019s app creation without the coding headache.<\/p>\n\n\n\n

For this app I wanted a QR code that would open a page on my website and reveal the card they selected. I wanted it to work with any card selected. Otherwise it is trivial. Have a web page that says “Queen of Diamonds” and force the “Queen of Diamonds”. I wanted more flexibility. <\/p>\n\n\n\n

I started with just an app to generate a QR code that opens a browser to a web page. I told the AI that I wanted a setup page that let me change the web page address to anything I needed. Here is the actual prompt I entered in:
Using cordova, can you create an android app that has a setup page that takes a url, and then displays the qr code for that address.<\/em><\/strong><\/p>\n\n\n\n

The AI system I use then created all of the files and gave me detailed instructions on how to take them and build the project on my desktop and once built how to deploy it to my phone.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Above is the app that the AI created. The gear icon opens the setup:<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Now I do have my own web site and understand how to create web pages and server-side code. So next I asked for three things.<\/p>\n\n\n\n