How to Fix file.exists() Always Returning True in Java Android Apps

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What's Happening?

In the provided Java function, the programmer attempts to determine if a file exists by creating a File object with a specified path. The assumption is that calling exists() will verify the presence of the file. However, the method always seems to return true, raising questions about its reliability.

Let's delve into this specific function and clarify what might be going wrong:

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This code creates a File object but does not actually check for a physical file on the storage before calling exists(). As a result, even if the file has not been explicitly created or saved, the method could behave unexpectedly.

The Solution: Use Java NIO for Better File Management

To overcome this limitation, you can implement Java NIO (New Input/Output), which facilitates a more reliable checking mechanism for file existence. Below, I will demonstrate how to modify the original function to use Java NIO effectively.

Updated Code Using Java NIO

Here’s the revised code that checks for the existence of a file properly:

[[See Video to Reveal this Text or Code Snippet]]

Explanation of the Changes

Error Logging: In case of an exception, the error message is logged, enhancing debugging capabilities.

Permissions Required

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Conclusion