How does android set the values displayed in TextView in the program?

The specific operation is as follows:

button

British telecommunications company

=(button)findviewbyid(r . id . button 1)；

Text view

tx =(textview)findviewbyid(r . id . textview 1)；

tx . settext(Bt . gettext())；

Gettext () gets the text on the button and displays it in textview.

Extended data:

Displays text to users and optionally allows them to edit the text. TextView is a complete text editor, but the base class does not allow editing; Its subclass EditText allows text editing.

Allow users to copy part or all of the content, paste it elsewhere, set the XML attribute Android: textisselectable: "true" or set the related method settextisselectable to "true". Textisselectable allows users to select gestures in TextView, thus triggering the copy/paste control built into the system.

Baidu Encyclopedia-Text View

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