use Onclick in extends PagerAdapter - android-studio

Question

Hi I’m trying to create a horizontal slide where each horizontal page will have a button that will call a Dialog but onClick is not working in extends Pageradapter can anyone tell me what I’m doing wrong?
I gave the name onClickApprove to onClick that I want you to call Dialog. This Dialog is calling an Activity with a Ratingbar to make an assessment.
Thank you.
public class SliderAdapterUsado extends PagerAdapter {
Context context;
LayoutInflater layoutInflater;
BottomSheetDialog dialog;
Button show;
public SliderAdapterUsado(Context context){
this.context = context;
}
public String[] slide_rota ={
"Titulo1",
"Titulo2"
};
public String[] slide_nome={
"Descrção do titulo 1",
"Descrção do titulo 2"
};
#Override
public int getCount(){
return slide_rota.length;
}
#Override
public boolean isViewFromObject(View view, Object object){
return view == (LinearLayout) object;
}
#Override
public Object instantiateItem(ViewGroup container, int position){
layoutInflater = (LayoutInflater) context.getSystemService(context.LAYOUT_INFLATER_SERVICE);
View view = layoutInflater.inflate(R.layout.slide_layout_usados, container, false);
TextView slideHeading = view.findViewById(R.id.slide_rota);
TextView slideDescricao = view.findViewById(R.id.slide_nome);
slideHeading.setText(slide_rota[position]);
slideDescricao.setText(slide_nome[position]);
container.addView(view);
return view;
}
#Override
public void destroyItem(ViewGroup container, int position, Object object){
container.removeView((LinearLayout)object);
}
public void onClickAvaliar(View view) {
show = view.findViewById(R.id.show);
dialog = new BottomSheetDialog(dialog.getContext());
show.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
createDialog();
dialog.show();
}
});
dialog.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
}
private void createDialog(){
View view = layoutInflater.inflate(R.layout.activity_rating, null, false);
Button FeedBack = view.findViewById(R.id.FeedBack);
FeedBack.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
dialog.dismiss();
}
});
dialog.setContentView(view);
}
}

Answer 1

Please read the documentation.
Note this in particular (emphasis mine):
To define the click event handler for a button, add the android:onClick attribute to the element in your XML layout. The value for this attribute must be the name of the method you want to call in response to a click event. The Activity hosting the layout must then implement the corresponding method.
The expectation is that the value set on the onClick xml attribute will be a method on the hosting Activity. Yours is in the adapter. That's why it doesn't work.
So either move that method to the hosting activity, or just handle the click event explicitly:
...
TextView slideHeading = view.findViewById(R.id.slide_rota);
TextView slideDescricao = view.findViewById(R.id.slide_nome);
Button slideButton = view.findViewById(R.id.slide_button);
slideButton.setOnClickListener (...)
...