Can you give examples of methods used for working with View in development?

In Android, the following methods are often used to work with Views:

• findViewById(int id) — to find a View by its identifier.
• setOnClickListener(View.OnClickListener listener) — to set a click handler.
• setVisibility(int visibility) — to control the visibility of a View (VISIBLE, INVISIBLE, GONE).
• setText(CharSequence text) — to change the text in a TextView or Button.
• setBackgroundColor(int color) — to change the background color of a View.
• invalidate() — to redraw the View.

Example:

Button button = findViewById(R.id.my_button);
button.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        button.setText("Pressed");
        button.setBackgroundColor(Color.RED);
    }
});