我正在尝试为授权活动编写代码。 当我在inputEmail中输入一些条目时,如果存在相应的记录,我希望我的inputPasword将自动归档。但是onItemSelectedListener似乎不起作用。当我选择项目时没有任何反应。日志没有。 我想知道我是否犯了一些错误,或者我错了。
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
}
});
答案 0 :(得分:56)
这是此question
的副本但是,您需要使用AdapterView.OnItemClickListener()而不是OnItemSelectedListener。
我使用以下代码片段成功测试了它。感谢Vogella适配器的内容。
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();
}
});
答案 1 :(得分:4)
autoCompleteTextView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
String selectedItem=autoCompleteTextView.getAdapter().getItem(position).toString();
Toast.makeText(getApplicationContext(),selectedItem , Toast.LENGTH_SHORT).show();
}
});
只需获取AutoCompleteTextView的适配器并使用该位置。