DOGMA

Open Event Android   Android Livedata and MutableLiveData December 14, 2018 Problem Suppose that we need to perform actions in light of changes in lifecycle status of Android Component. Some of the time you may wanna observe certain qualities being changed over the setup change. We all faced these problems somewhere down the road, trying a lot of different patterns MVP, MVVM, and others. But to implement these patterns is also a big problem for beginners. Solution The good news is that with the Android Architecture Component and more precisely with the lifecycle LiveData and ViewModel , we can easily overcome these problems. LiveData LiveData is an observable data holder. It is also a lifecycle aware. By lifecycle aware I mean, it can only be observed in the context of a lifecycle, more precisely in the context of an Activity or Fragment lifecycle. By passing the reference of an Activity or Fragment , it can understand whe...

A  Blockchain , initially  Block chain , is a developing rundown of records called blocks, which are connected utilizing cryptography. Blockchains which are decipherable by people in general are broadly utilized by cryptocurencies. Private blockchains have been proposed for business utilize. Here, is a short story which will make you comfortable with the  Blockchain Technology . Mario and Luigi Mario needs to send $100 to his brother, Luigi, because Luigi being Luigi, he got into some debts at the other end of the world. Mario walks into the bank and says “I’d like to send $100 to Luigi”. The Cashier says “Account card please”, “ID please”, ”signature” and “done”. In this centralized situation, the bank is the *central* expert over Mario's and Luigi's cash. Both Mario and Luigi trust the bank to exchange the sum, and trust the numbers appeared on their bank account statements. They trust the bank in-spite of the way that all the bank needs to do is c...

As a Developer, many of us have to choose between Merge and Rebase. With all the references we get from the internet, everyone believes “Don’t use Rebase, it could cause serious problems.” Here I will explain what merge and rebase are, why you should (and shouldn’t) use them, and how to do so. Git Merge and Git Rebase serve the same purpose. They are designed to integrate changes from multiple branches into one. Although the final goal is the same, those two methods achieve it in different ways. This question has split the Git community. Some believe you should always rebase and others that you should always merge. Each side has some convincing benefits. Git Merge Merging is a common practice for developers using version control systems. Whether branches are created for testing, bug fixes, or other reasons, merging commits changes to another location. To be more specific, merging takes the contents of a source branch and integrates them with a target branch. In this process, only...