File Copy Implementation

[rtsketo]

Code Refinements:

• The PdfViewerActivity now includes a more refined permission check for WRITE_EXTERNAL_STORAGE, taking into account the different API levels and their permission models. This is critical for Android 6.0 (Marshmallow) and above, where runtime permissions are required.
• Enhanced file handling with FileUtils, which includes a new method for copying files, copyFile(..). This addresses a need to manipulate files within the app's scope effectively, following best practices for file storage.
• The downloadFile(..) function has been improved to use Environment.getExternalStoragePublicDirectory(), which is a more standardized way to access shared storage in a manner consistent with Android's scoped storage model.

Code Cleanup:

• Removed unnecessary imports, which cleans up the codebase and possibly improves build time and performance.
• Streamlined the code by removing redundant calls and ensuring that the app's behavior aligns with the expected permissions flow, especially around storage access which has been a point of significant change in recent Android versions.

Gradle Updates:

• Upgraded the targetSdkVersion to 33, preparing the app for the latest Android OS compatibility.
• Replaced the deprecated android.support:multidex with androidx.multidex:multidex, aligning with AndroidX migration.
• Updated various dependencies to their latest versions, including Kotlin, JUnit, and Espresso. This ensures that the app is using the most up-to-date libraries, which often include important bug fixes and performance improvements.

Manifest Adjustments:

• Made changes to the AndroidManifest.xml file, which could include updating the permissions, activity declarations, or adjusting the application's metadata.

Visual Assets:

• Lowered the size of the image files.

[afreakyelf]

Can you please add the reason why did you add copyFile method in the description?

[hiteshsarsava]

You need merge this PR. As it's handle write external storage permission above Android 11 @afreakyelf

[github-actions[bot]]

This PR is stale because it has been open 45 days with no activity. Remove stale label or comment or this will be closed in 10 days.

[github-actions[bot]]

This PR is stale because it has been open 45 days with no activity. Remove stale label or comment or this will be closed in 10 days.