Question

我只想在选定的项目微调器上进行alertdialog。这段代码总是出错。

    sh = (Spinner) view.findViewById(R.id.shield);
    ArrayAdapter<CharSequence> adaptera = ArrayAdapter.createFromResource(getActivity(),
            R.array.shield, android.R.layout.simple_spinner_item);
    adaptera.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    sh.setAdapter(adaptera);


    sa = (String) sh.getSelectedItem();
    boolean sw = sa.trim().equals("lead");
    sw.setOnTouchListener(new View.OnTouchListener() {

        @Override
        public boolean onTouch(View v, MotionEvent event) {
            AlertDialog.Builder bu = new AlertDialog.Builder(getActivity());
            LayoutInflater d0 = getActivity().getLayoutInflater();
            bu.setView(d0.inflate(R.layout.d01, null))
                    .setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int which) {
                        }
                    })
                    .show();
            return false;
        }
    });

在alertdialog上使用自定义布局

Answer 1

您需要使用 OnItemSelectedListener 而不是OnTouchListener：

 sp.setOnItemSelectedListener(new OnItemSelectedListener() {

        @Override
        public void onItemSelected(AdapterView<?> arg0, View arg1,
                int arg2, long arg3) {
            // show alert here

             AlertDialog.Builder bu = new AlertDialog.Builder(getActivity());
                LayoutInflater d0 = getActivity().getLayoutInflater();
                bu.setView(d0.inflate(R.layout.d01, null))
                        .setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog, int which) {
                            }
                        })
                        .show();

        }

        @Override
        public void onNothingSelected(AdapterView<?> arg0) {
            // TODO Auto-generated method stub

        }
    });

希望它有助于ツ

关于微调器的AlertDialog

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