I listed seven common tasks that Android developers often face, it’s the kind of stuff that interrupts your train of tought and makes you think “Oh God.. this is boring and I have other things to do, let’s google for some code”.
And here it is. In no particular order.
Just copy and paste, no questions asked.

How to rotate a Bitmap in Android

This will rotate any Bitmap to the desired angle, in degrees.

How to copy a file in Android

The smart way, without that nasty new buffer[1024] thing.

How to delete a directory in Android

Yes, the directory itself and all the files and subdirectories recursively.

How to convert a byte array into an hexadecimal String

I will probably google this in the future and find my own post.

How to convert Android dps to pixels

You are welcome.

How to copy a directory in Android

Again yes, the directory itself and all the files and subdirectories recursively.

How to extract a zip archive in Android

This will extract any zip archive to the desired location on the filesystem.

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