Android弹窗ListPopupWindow的简单应用详解

public class ChargeItemSumPop extends ListPopupWindow {

 public ChargeItemSumPop(Context context) {
  super(context);
 }
}

setHeight(ViewGroup.LayoutParams.WRAP_CONTENT);
setWidth(600);
setModal(true);
setBackgroundDrawable(new ColorDrawable(0xCC000000));

//添加想要展示的数据
Calendar calendar = Calendar.getInstance();
int year = calendar.get(Calendar.YEAR);
List<Integer> lstYear = new ArrayList<>();
for(int i = 2015; i <= year; i++){
    lstYear.add(i);
}
ArrayAdapter<Integer> adapter = new ArrayAdapter<>(context, Android.R.layout.simple_spinner_dropdown_item, lstYear);
setAdapter(adapter);

ChargeDateYearPop pop = new ChargeDateYearPop(this);
pop.setOnItemClickListener((adapterView, view, i, l) -> {
    bindingView.chargeYear.setText(String.valueOf(adapterView.getAdapter().getItem(i)));
    pop.dismiss();
});
pop.setAnchorView(bindingView.chargeYear);
pop.show();

public class ChargeDateYearPop extends ListPopupWindow {

    public ChargeDateYearPop(Context context) {
        super(context);
        setHeight(800);
        setWidth(200);
        setModal(true);
        setBackgroundDrawable(new ColorDrawable(0xCC000000));
        initView(context);
    }

    private void initView(Context context) {
        Calendar calendar = Calendar.getInstance();
        int year = calendar.get(Calendar.YEAR);
        List<Integer> lstYear = new ArrayList<>();
        for(int i = 2015; i <= year; i++){
            lstYear.add(i);
        }
        Collections.sort(lstYear);
        Collections.reverse(lstYear);
        ArrayAdapter<Integer> adapter = new ArrayAdapter<>(context, android.R.layout.simple_spinner_dropdown_item, lstYear);
        setAdapter(adapter);
    }
}

private void showChargeDateYear(){
    ChargeDateYearPop pop = new ChargeDateYearPop(this);
    pop.setOnItemClickListener((adapterView, view, i, l) -> {
        bindingView.chargeYear.setText(String.valueOf(adapterView.getAdapter().getItem(i)));
        pop.dismiss();
        //重载数据等的操作
        //mPresenter.getCharges(getChargeDate());
    });
    pop.setAnchorView(bindingView.chargeYear);
    pop.show();
}