Guide to Solve different kinds of Problems (Page - 32)

In this example, we have shown to list all the PDF files from internal or external storage on the app and build a list. And whenever the user taps or pressed on it, show it on the next page.

The attribute ’floatingActionButton’ of Scaffold() widget allows you to add only one floating action button, but if you do a simple trick, you can achieve a single screen with multiple floating action buttons.

There is no provision of dotted or dashed border line for containers in Flutter SDK yet. In this example, you can learn how to make border line for any kind of widget either its image, container, text on flutter.

Flutter makes so many complex tasks very easy to implement. Opening the camera to scan QR/Bar code and to get the scan result output is very easy, you need a single line of code to implement this feature in your Flutter app.

Are you making an IoT Android/iOS app to control NodeMCU (ESP8266)? I recommend you to use WebSocket to communicate between App and NodeMCU. If you are using HTTP web-server then it will be slow communication between Chip and Mobile App therefore use WebSocket instead.

In this example, we are going to show you how to show live data like temperature, humidity, and Heat Index from DHT11 Sensor on a mobile App using NodeMCU (ESP8266). We have used WebSocket to transfer data from NodeMCU to Mobile App.

To build an interactive app, you need to know every kind of Flutter tricks or codes. In this example, you will learn how to return data on mobile back button press or flutter widget button press.

When building Flutter apps, you often need to pass data to next page screen. In this example, I’m going to show how to pass data or variable value to another screen route.

For the interactive App user interface, some time we need to make status bar transparent. But whenever you make it transparent, its icon is not going to change color itself.

If you want to build a progress bar indicator that is either circular or linear different than the default progress bar indicator which looks more beautiful then see the example

We have certain ways to generate Nested JSON with PHP but, when We come to Flutter App Development, that causes an error while parsing. After that, We get another way

In this example, We have shown a fully functional login panel in flutter and validate using PHP and MySQL as back end. The panel shows an error message on error and progress indicator on the “login” button click.