Tutorials, tips&tricks, snippets..




Convert a p12 DevExpress/DevExtreme certificate to a keystore one

I use DevExtreme from DevExpress to build multiplatform app.

Since DevExtreme doesn’t support anymore its building tool, I use it only to create a zip package and then I build it with

I had to upload my p12 file in this site, but first I had to convert it correctly.

This command line reached the goal:

keytool -v -importkeystore -srckeystore android_certificate.p12 -srcstoretype PKCS12 -destkeystore myKey.keystore -deststoretype JKS

After you run this command, in the output you’ll see the certificate alias. Use this to import the file in If this is wrong, you’ll get an error while compiling the apk.

Create an iOS certificate and use it on

You can create a multiplatform app with Phonegap. At you can also compile the app and generate ipa/apk files. If you want, of course, to publish it on iTunes/Google Play you have to use a certificate. Here, how to create&use an iOS certificate.

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Download&open a pdf base64 encoded in Android/iOS cordova/phonegap app

In my app, I need to download a pdf file from my api (base64 encoded, here how to create it), convert it and finally open it. Here how I made it.

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How to create expandable FAQ page in HTML?

I needed to create a simple FAQ page for my Phonegapp app. I found a lot of sample, but all of them were too complicated, I was searching for a simple one.

After a while, I found some useful examples and I put them together to create my FAQ page with HTML, CSS and Javascript.

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Send push notification using C# and FCM

After you set up the environment in your app and make it able to receive push notifications, here we’ll see how to send these push notifications using the FCM features with C#.

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DevExtreme/Phonegap: how to manage push notifications with FCM

It took long time for me to manage in the correct way push notifications within my app. Using DevExtreme, I’m able to create a single app both for Android and iOS.

To test the push notifications feature, I use FCM (Firebase Cloud Messaging, by Google).

Continue reading “DevExtreme/Phonegap: how to manage push notifications with FCM”

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