Review and testing of plugins in Flutter for Android and IOS

With the advent of the 5G era, the development and design of mobile applications has become an important development direction of widespread concern in various fields of the Internet, and the demand for mobile application development has also grown rapidly. Among the various development cross-platform frameworks for mobile development, flutter is the best, it is currently the most popular and easiest to use cross-platform development framework. In addition, selecting appropriate plug-ins in the process of developing mobile APP functions can effectively shorten the development cycle. Therefore, in order to better develop and improve development efficiency, the review and testing of plugins in Flutter for Android and IOS has become particularly important. To explore this process, this article uses the Flutter cross-platform framework to develop and design a smart application. After understanding the background of Flutter and analyzing and studying its related technical principles, according to the most common and representative native functions of current mobile phones. The functions of mobile phone photo taking, photo album, calling, sending short message, QR code scanning recognition, QR code photo album picture recognition, and RFID tag NFC recognition are respectively realized. The application interface is simple, clear and beautiful, and the operation is simple and convenient. The overall UI framework uses Dart UI for layout. Through the selection of various functional plug-ins, the addition of plug-in dependencies, and the reference of plug-ins, the perfect combination of plug-ins and UI functional interfaces is finally realized, the exploration of various native function application plug-ins is realized, and a good display is obtained in the mobile phone test. The effect perfectly meets the expected requirements.