自动完成文本视图setonitemselectedlistener不起作用 [英] autocompletetextview setonitemselectedlistener not working

问题描述

我正在尝试编写用于授权活动的代码. 当我在inputEmail中添加一些条目时，如果存在相应的记录，我希望我的inputPasword会自动归档.但是onItemSelectedListener似乎不起作用.当我选择项目时，什么也没有发生.日志不正确. 我想知道我是否犯了一些错误，或者我走错了方向.

there i am trying to write code for authorisation activity. When i am putting some entry in inputEmail i expect that my inputPasword will be fileed automaticly if corresponding record exists. However onItemSelectedListener seemd not to work. When i select item nothing happens. Log does not fiers to. I'd like to know if i made some mistake or i am going in wrong aproach.

AutoCompleteTextView inputEmail;
inputEmail = (AutoCompleteTextView) findViewById(R.id.loginEmail);
inputEmail.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub

                Set<String> keys = prefs.getAll().keySet();
                emails.clear();

                if (keys.size() != 0) {
                    emails.addAll(keys);
                } else
                    emails.add("");

                inputEmail.setAdapter(adapter);

                email = inputEmail.getText().toString();

            }

        });
inputEmail.setOnItemSelectedListener(new OnItemSelectedListener() {

            @Override
            public void onItemSelected(AdapterView<?> arg0, View arg1,
                    int arg2, long arg3) {
                // TODO Auto-generated method stub
                email = inputEmail.getText().toString();
                password = prefs.getString(email, "");
                Log.d(email + " "+password, "email+password");
                if (password.length() > 1) {
                    inputPassword.setText(password);
                }

            }

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

            }

        });

推荐答案

这是该问题

但是，您需要使用 AdapterView.OnItemClickListener()不是OnItemSelectedListener.

However, you need to use AdapterView.OnItemClickListener() not OnItemSelectedListener.

我使用以下代码段成功地对其进行了测试.归功于 Vogella 作为适配器的东西.

I tested it with success using the following code snippet. Credit to Vogella for the adapter stuff.

    AutoCompleteTextView actv = (AutoCompleteTextView) findViewById(R.id.autocomplete_textview);

    String[] values = new String[] { "Android", "iPhone", "WindowsMobile",
            "Blackberry", "WebOS", "Ubuntu", "Windows7", "Max OS X",
            "Linux", "OS/2", "Ubuntu", "Windows7", "Max OS X", "Linux",
            "OS/2", "Ubuntu", "Windows7", "Max OS X", "Linux", "OS/2",
            "Android", "iPhone", "WindowsMobile" };

    ArrayList<String> list = new ArrayList<String>();
    for (int i = 0; i < values.length; ++i) {
        list.add(values[i]);
    }
    final ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
            android.R.layout.simple_list_item_1, list);
    actv.setAdapter(adapter);

    actv.setOnItemClickListener(new AdapterView.OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> parent, View view,
                int position, long id) {
            Toast.makeText(MainActivity.this,
                    adapter.getItem(position).toString(),
                    Toast.LENGTH_SHORT).show();
        }
    });

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