applications is a common problem these days. The most common one is multimedia data corruption due to copy and paste. This can be easily avoided by using data validation while copy or editing. Now, how can a phone’s camera be corrupted? The answer is data copy and paste. This is a common issue in Android devices. Now, how do you avoid data copy and paste? You can use custom data validation. This way, you prevent data corruption in any application. Another cause of multimedia data corruption is not checking the length of the data while copying. Hence, custom data validation is also very important while copying multimedia data. You should be cautious while editing multimedia data and make sure that you validate the data before copying it.

What is Data Copy and Paste?

Data copy and paste is the process of copying data from one spot on a screen to another. It is similar to cut and paste, but it does not depend on the mouse. Data copy and paste can happen in different ways in different applications. One way that data can be copied without validation is by using clipboard sharing that comes with Android.

What causes data corruption?
Copy and paste is the usual cause of data corruption, which can result from various causes. For example, when you copy data from a text field, it might contain invalid characters due to copy and pasting over an existing key or value. Another cause can be when you are trying to use a certain character repeatedly in a large text field. This will result in errors when attempting to save the text as an image file because of the length of the file being too long. In order to avoid this issue, make sure all your texts are short enough before you attempt to save them as images.

How to use Custom Data Validation in Android?

Instruction to use custom data validation in Android:
1. Open the application you want to use custom data validation on.
2. Tap on Edit and select Data Validation.
3. In Data Validation, click on Custom Item and then click on the first checkbox that says "Always" or "Never" (whichever applies). Clicking this box will make it so that the given item is always or never checked when copying or pasting the given item. For example, if you tap on the "never" box next to "camera", it will prevent data from copying to the camera app because of data copy and paste.

How to check if your Android phone is affected by data copy and paste

To check if your Android phone is affected by data copy and paste, you should first install a utility called Data Validator. This utility can help you determine if your phone is affected by data copy and paste or not. After this, you must check the length of the data for copying or editing. If the length of the data is too short, then it has been corrupted.
* Prerequisite:
- Enable Developer Options on your phone
- Install Data Validator
- Enable USB Debugging on your phone
- Connect your phone to computer through a USB cable

Android Custom Data Validation with Kotlin

In Android, the data validation is done in a method called onValidate. In this method, we use the Kotlin data classes to set and validate our data. There are many cases where you might want to change the length of your data. This can be done with a one-time binding in Kotlin. If you have a longer string, you need to make sure that your data is long enough to hold it before you bind it to the text view.
Another useful feature of custom validation is that it doesn't allow copy and paste. We can use this feature while writing an App which stores text input by typing. It also prevents various types of errors which might occur during copy and paste operations like null pointer exceptions. This will make sure that your application works smoothly without any error messages popping up when the user tries to copy or paste text.

What is data validation?

Data validation is the process of checking a piece of data, usually text or multimedia data, and ensuring that it follows specific rules. It is one of the most important aspects of any application, as it helps avoid errors in your program. If a piece of data does not follow your rules, the software will alert you to this fact and give you an opportunity to change the piece of data before proceeding. The number-one rule for writing code with data validation is 'never trust input'.


Published on: 09/02/2022 12:15:00 UTC
Last modified on: 09/08/2022 20:44:00 UTC