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1. #Ionic v3 sqlite transaction how to
2. #Ionic v3 sqlite transaction install
3. #Ionic v3 sqlite transaction code

There are a few things you need to be careful, when we export the tiles, each tile is a png image that is stored in a sqlite database. The next step is to export the map in ‘MBTiles’ format. You can check my TileMill on Github here, and use the same ‘.mss’ files. I’ve used the ‘.mss’ that is available in the “Open Streets, DC” project template, just made a few adjust to make it work.

#Ionic v3 sqlite transaction how to

I’m not an expert in TillMill or GIS (If you want more information about how to use TileMill, you can check here), but you don’t need to know much to configure the map. So if you have a layer containing only labels, it should be placed on top.Īfter choosing the ‘datasource’, click on “Save & Style”.Īfter you added all layers (yeah, you’ll need to add manually – if someone knows a better way to do it, I’ll be happy to know how), you should have something like this: The layers order is also important, the layer that is placed above the others is the first one. The ‘id’ of the layer is important, when we will set the style ( CartoCss) of the map, we will use the ‘id’ that was informed here. Next, you’ll need to add the layers to the map. TileMill is a design studio that allows you to create, build, export, customize maps.Ĭreate a new project, use the default configuration for ‘Image format’.

#Ionic v3 sqlite transaction install

In my case, I’ve downloaded the 12 MB impos shapefiles from “Porto Alegre”, but you can choose another city.Īfter that, you’ll need to install TileMill from Mapbox. Preparing the geo filesįirst of all we need to download the geo shapefiles, you can download them here. So in this post I’ll do my best to explain all the essential steps to create this app 🙂 Let’s get to work!įirst of all we will need to prepare the geo files that will be loaded inside our app, then we’ll import those files in the app and use a custom leaflet layer to load the tiles.

I’ve searched for tutorials, found good ones, but could not find one that was complete. The challenge is to create an offline map app using Ionic + Cordova sqlite + Leaflet. Myth #1: Can’t make offline apps with Hybrid technologies So in this post, I will prove that we can build high quality offline apps using IONIC!

Also, I could not focus on the presentation after I’ve heard: “you cannot build offline apps with Hybrid frameworks”. Maybe Kony is actually a great product (see Gartner Magic Quadrant), but the true is that for me it has a huge flaw, it is a closed framework/language, so once you start using it, you get locked in (see Vendor Lock-in). For example, you can’t create an app like gmail.” Also with Kony you can create offline apps and with Hybrid application we can’t. Using the native UI componentes from each platform. The guy that was presenting the product said: “The difference between our product is that with Kony the output is a native app.

#Ionic v3 sqlite transaction code

When my function to request data from the database is called it has to be certain to open the database and that the 2 tables are created.Sometime ago I was invited to a presentation about Kony, a mobile app platform, that allows you to code once and build for multiple platforms. So i’m having a real hard time understanding how synchronous functions work in ionic2/angular.