How to create Button Dynamically in android?

Question

I want to create a page like this. these 7 buttons are already exist but if user want to add more cat

Answer 1

LinearLayout mainLayout = (LinearLayout)findViewById(R.id.yourlayoutidthatisonethepicture);

Button addButton =new Button(this);
addButton.setText("add");

mainLayout.addView(addButton);

to remove is the same just change this "mainLayout.addView(addButton)" to removeView or setVisibility of button to View.GONE