Android Obfuscate code with proguard
A simple approach to obfuscate java code with Proguard Update app/build.gradle Update app/proguard-rules.pro Above config tested with below dependencies
Month: November 2019
Flutter setState()
What happens when Flutter startup and when we call setState(). Just an example to easy understand Layout summary First, run Press the button 1st Press the button 2nd Press the…
Flutter printer and cash drawer
Library use for connecting to a printer https://pub.dev/packages/esc_pos_printer To open cashier https://www.beaglehardware.com/howtoprogramcashdrawer.html Connect cashier to the printer via a phone cable Cable datasheet Controlling the cash drawer ESC POS Control…
Flutter state management with BLoC – simple approach
This article presents how to implement BLoC in Flutter. The context on example: Give an edit text to get data input Handle changing the text to get final search text Deal…
Extract data by regex in javascript
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Enable Virtualization Technology in BIOS
Go to BIOS (F2 or F10), System Configuration/Advanced/Security -> Cpu Configuration -> (Intel) Virtualization/Virtualization Technology and enable it
Hide IP with proxy on macOS
First, get a proxy address from a free list https://www.proxynova.com/proxy-server-list/ http://geonode.com/free-proxy-list Then, Open Network Preferences… -> Advanced… -> Proxies tab -> Check on ‘Auto Proxy Discovery’, ‘Web Proxy (HTTP)’, Secure…
The diagnostic centos IP address
View ip address Where ip address config Backup ethernet network interface Restart network
Postgresql benchmark
https://severalnines.com/blog/benchmarking-postgresql-performance Command Preparing Benchmark with 10 clients Benchmark with 50 clients in 60s
Flutter Hide keyboard
Original answer: https://stackoverflow.com/questions/44991968/how-can-i-dismiss-the-on-screen-keyboard Using with BLoC In BLoC, create FocusNode, and set unfocus at any time you need to hide the keyboard In Widget, get focusNode directly via BLoC, or for…