When the developer jumps to a new page through the button button, the following code is created. If you don't add "" Button button = (Button) findComponentByld(ResourceTable.ld_button) ;" What happens to this line of code?
Public void onStart(Intent intent){
super.onStart(intent);
super.setUlContent
(ResourceTable.Layout_ability_main);
Button button =
(Button)findComponentByld(ResourceTable.ld_button);
button.setClickedListener(listener -> present(new
SecondAbilitySlice(),new Intent()));
}