带有联系人的自动完成 TextView

问题描述

我需要显示一个自动完成文本框，它基本上会加载联系人电子邮件 ID.我已经尝试使用自定义适配器，但文本框中没有填充任何内容.完全没有建议.任何解决方案都会非常有用.

i need to display an auto complete text box which will basically load the contacts e-mail ids. I have tried it using a custom adapter but nothing gets populated in the textbox. No suggestions at all. Any solutions will be very useful.

推荐答案

试试以下:

ArrayList<String> emailAddressCollection = new ArrayList<String>();

ContentResolver cr = getContentResolver();

Cursor emailCur = cr.query(ContactsContract.CommonDataKinds.Email.CONTENT_URI, null, null, null, null);

while (emailCur.moveToNext())
{
    String email = emailCur.getString(emailCur.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA));
            emailAddressCollection.add(email);
}
emailCur.close();

String[] emailAddresses = new String[emailAddressCollection.size()];
emailAddressCollection.toArray(emailAddresses);

ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
             android.R.layout.simple_dropdown_item_1line, emailAddresses);
AutoCompleteTextView textView = (AutoCompleteTextView)findViewById(R.id.YOUR_TEXT_VIEW);
     textView.setAdapter(adapter);
 }

注意:不要忘记将 READ_CONTACTS 权限添加到您的 Manifest.xml:

Note: Don't forget to add the READ_CONTACTS permission to your Manifest.xml:

<uses-permission android:name="android.permission.READ_CONTACTS" />