Setting up react-native on windows operating system, step by step process.

Introduction

React Native is a popular framework for building cross-platform mobile applications using JavaScript and React. It allows developers to write code once and deploy it on multiple platforms, including iOS and Android.

Setting up React Native on Windows can be a bit tricky, as it requires several tools and dependencies to be installed and configured. In this tutorial, we'll walk you through the process of setting up React Native on a Windows machine, step by step.

Prerequisites

Before we get started, make sure you have the following prerequisites installed on your Windows machine:

Node.js: You can download the latest version of Node.js from the official website.

A code editor: You can use any code editor to work with React Native. Some popular options include Visual Studio Code, Sublime Text, and Atom.

Android SDK: To build and run React Native applications on Android, you need to install the Android SDK. You can download and install the Android Studio IDE, which includes the Android SDK, or you can download just the SDK from the official Android website.

Java Development Kit (JDK): React Native requires the JDK to be installed on your system. Download and install the latest version of the JDK from the official Oracle website.

Step 1: Install the React Native CLI

Open a command prompt or terminal window and run the following command:

npm install -g react-native-cli

Step 2: Configure the Android environment variables

After installing the Android SDK, you need to set up the environment variables for your system. Add the following to your system's PATH environment variable:

%USERPROFILE%\AppData\Local\Android\Sdk\platform-tools
%USERPROFILE%\AppData\Local\Android\Sdk\tools

Make sure to replace %USERPROFILE% with your actual user profile directory.

Step 3: Create a new React Native project

To create a new React Native project, open a command prompt or terminal window, navigate to the directory where you want to create the project, and run the following command:

react-native init MyProject

This will create a new React Native project named "MyProject" in the current directory.

Step 4: Run the React Native application

To run the React Native application, navigate to the project directory in a command prompt or terminal window and run the following command:

react-native run-android

This will build the app and launch it in an Android emulator or on a connected device.

Conclusion

Setting up React Native on Windows can be a bit tricky, but it's definitely worth the effort. Once you have everything set up, you'll be able to develop and deploy cross-platform mobile apps using the power of JavaScript and React.

We hope this tutorial has been helpful in getting you started with React Native on Windows. If you have any questions or feedback, feel free to leave a comment below. Happy coding!

Play Store updates/installs app using a different account than the one the user made IAP through

We understand that this issue can be frustrating for both developers and users. The problem seems to be related to the way Google Play Store handles in-app purchases (IAPs) and user accounts.

• One possible solution to this problem is to implement a server-side verification process for IAPs. By verifying IAPs on the server-side, it would not matter which Google account the user is currently logged in with, as long as they are logged in to the app with the same account used to make the purchase. This would also prevent users from sharing IAPs between accounts.

• Another possible solution is to implement a system within the app that allows users to select which Google account to use for purchases. This would require additional development work and may not be feasible for all apps, but it would give users more control over their purchases.

Finally, it's important to communicate clearly with users about how IAPs work and which Google account they should use for purchases. This can be done through in-app messaging or documentation, such as an FAQ section or user manual.

• Overall, the best solution will depend on the specific requirements of the app and the resources available to the development team. It's important to keep in mind that while this issue may lead to negative reviews, it's ultimately up to the developer to find a solution that works for their app and its users. 

As pointed out in a comment, when I refer to multiple accounts I am talking about multiple Google accounts for a single Android User, I am not talking about multiple Android users within the same phone

In that case, the issue may be related to the way Google Play Store handles multiple Google accounts on a single Android device.

One possible solution to this problem is to prompt the user to select the Google account they want to use for in-app purchases when they first launch the app. This can be done through a dialog or a separate screen that allows the user to select from the Google accounts that are associated with their device.

Another option is to allow the user to switch between Google accounts within the app itself. This can be done by providing a settings menu that allows the user to select the Google account they want to use for in-app purchases.

It's important to note that any solution that involves allowing the user to select their Google account for in-app purchases should be clearly communicated to the user through in-app messaging or documentation. This can help prevent confusion and ensure that users are using the correct Google account for their purchases.

We hope this solves your Problem

How to not lose editing when using DT with the Scroller extension?

When using DataTables (DT) with the Scroller extension, you may encounter a problem where your unsaved changes to the table are lost when you scroll away from the edited rows. This is because the Scroller extension removes rows from the DOM that are not currently visible, including any changes you made to those rows.

To prevent this problem, you can use the Editor extension in combination with Scroller. The Editor extension allows you to edit the table data in a modal window, which is not affected by Scroller's behavior of removing rows from the DOM. Here are the general steps to follow:

1. nitialize your DataTable with the Scroller extension as usual.

javascript
var table = $('#example').DataTable( {
    // Scroller extension options
    // ...
} );

2. Add the Editor extension to your DataTable initialization.

javascript
var editor = new $.fn.dataTable.Editor( {
    ajax: "example.com/api/myTable",
    table: "#example",
    fields: [
        // define your fields here
    ]
} );

table.on( 'click', 'tbody td:not(.select-checkbox)', function (e) {
    editor.inline( this );
} );

3. Use the inline() method of the Editor object to open an editing modal window when a user clicks on a cell in the table.

This way, when a user clicks on a cell in the table, the Scroller extension will not affect the editing modal window, allowing the user to make changes to the data without worrying about losing unsaved changes.

Note that this is just a general approach and you may need to customize it depending on your specific requirements.

Django form.save() does not update database

There could be several reasons why calling the save() method on a Django form does not update the database. Here are some things you can check:

1) Are you calling form.is_valid() before calling form.save()? form.save() will only update the database if form.is_valid() returns True. If form.is_valid() returns False, it means there are validation errors and the form data cannot be saved to the database.

2) Are there any errors in the server logs? Check the server logs to see if there are any error messages that may provide a clue as to why the database update is not working.

3) Are you updating an existing object or creating a new one? If you are updating an existing object, make sure that you are passing the object instance to the form's constructor or to the form.instance attribute before calling form.save(). If you don't pass the instance, Django will create a new object instead of updating the existing one.

4) Are you using the correct form instance? If you have multiple forms on the same page or in the same view, make sure you are calling the correct form's save() method.

5) Have you overridden the save() method on the form or model? If you have overridden the save() method, make sure you are calling the parent class's save() method to ensure that the object is actually saved to the database.

6) Is there a database transaction issue? If you are using a transaction to wrap your database operations, make sure that the transaction is committing the changes to the database.

By checking these possibilities, you should be able to find the issue and get form.save() to update the database as expected. 

How do I undo the most recent local commits in Git?

To undo the most recent local commits in Git, you can use the git reset command. Here are the general steps:

1) Open your terminal or command prompt and navigate to your local Git repository.

2) Run the following command to view your commit history:

git log --oneline

This will show you a list of your recent commits, along with their commit IDs (hashes).

3) Identify the commit you want to undo. You'll need the commit ID (hash) for the next step.

4) Run the following command to undo the most recent commit:

git reset HEAD~1

This will remove th
e most recent commit from your local repository, but leave the changes in your working directory.

If you want to completely discard the changes, you can add the --hard option:

git reset --hard HEAD~1

This will remove the most recent commit and discard the changes in your working directory.

Note that this will permanently delete the most recent commit and any changes it contained. If you want to keep a copy of the changes, you should make a backup or create a new branch before running this command.

5) Run the following command to verify that the commit was undone:

git log --oneline

This will show you the updated commit history, with the most recent commit removed.

That's it! You've successfully undone the most recent local commit in your Git repository.