[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() {
            public void onClick(View v) {
                Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
                startActivityForResult(intent, RESULT_PICK_IMAGEFILE);

Complete miscellaneous notes from here


Intent for selecting files using the picker → Picker = Interface


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


→ Select this as the character string type


→ 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.

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