[JAVA] Image acquisition memorandum gallery call

Created an app for the first time in a long time. I decided to add an image acquisition function as an additional function.

The process here is like a preparatory stage before image acquisition, so I'm calling the gallery ... I wonder if it's okay. Prepare an Intent, add two functions to it, and start the activity. And the stage that enables the transfer of information.

findViewById(R.id.activity_detail_select_button).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
                intent.addCategory(Intent.CATEGORY_OPENABLE);
                intent.setType("image/*");
                startActivityForResult(intent, RESULT_PICK_IMAGEFILE);
            }
        });

Complete miscellaneous notes from here

ACTION_OPEN_DOCUMENT

Intent for selecting files using the picker → Picker = Interface

CATEGORY_OPENABLE

Passing URI A URI is for identifying a name or location By passing this, if it is this time, add an image

"image/*"

→ Select this as the character string type

startActivityForResult

→ Launch an activity and allow it to receive some information from the activity

I am not confident at all, so it would be very helpful if you could point out.