Question

这是我的代码

public class MainActivity extends Activity {

    // List view
    private AutoCompleteTextView lv;

    // Listview Adapter
    ArrayAdapter<String> adapter;



    // ArrayList for Listview
    ArrayList<User> userList = new ArrayList<User>();
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // Listview Data
       /* String products[] = {"Dell Inspiron", "HTC One X", "HTC Wildfire S", "HTC Sense", "HTC Sensation XE",
                                "iPhone 4S", "Samsung Galaxy Note 800",
                                "Samsung Galaxy S3", "MacBook Air", "Mac Mini", "MacBook Pro"};*/
        User p = null;

        p = new User("1", "Starhub Pte Ltd","Manager","Jason", "Bourne","");
        userList.add(p);      
        p = new User("2", "Singtel Pte Ltd", "Senior Manager","Ben", "Chia","");
        userList.add(p);  
        p = new User("3", "Ngee Ann Polytechnic", "Senior lecturer","Charles", "Xavier","");
        userList.add(p); 
        p = new User("4", "Dreamcity Pte Ltd", "","Ben", "Chia","");
        userList.add(p); 
        p = new User("5", "DBS Corporation", "Secretary","Michelle", "Chong","");
        userList.add(p); 
        p = new User("6", "OCBC bank", "Deputy finance Manager","YongZheng", "Wong","");
        userList.add(p); 

        AutoCompleteTextView lv = (AutoCompleteTextView) findViewById(R.id.autoCompleteTextView); // NOTE: change to your autocomplete textview id

        // Adding items to listview

        adapter = new ArrayAdapter<String>(this, android.R.layout.simple_dropdown_item_1line, getUsernames(userList));
        lv.setAdapter(adapter);  



    }

    private ArrayList<String> getUsernames(ArrayList<User> users)
    {
        ArrayList<String> usernames = new ArrayList<String>();


        for(User u : users)

        {
            usernames.add(u.getFirstName() +" "+ u.getLastName() +" "+ u.getCompanyName()); 

        }

        return usernames;
    }
}

无论如何只返回名字和姓氏，但隐藏公司名称？请指教。目前我可以返回所有内容，或者只能通过名字和姓氏搜索.................................. ............

Answer 1

我还没有完全理解你的问题，但你的意思是通过公司标签搜索用户？如果是这种情况，请参阅以下方法：

private ArrayList<String> getUsernames(ArrayList<User> users, String company_name)
{
    ArrayList<String> usernames = new ArrayList<String>();

    for(User u : users)
    {
        if (u.getCompanyName().equals(company_name))
            usernames.add(u.getFirstName() +" "+ u.getLastName());
    }

    return usernames;
}

我更改了方法参数。 “getUsernames”方法现在采用“company_name”变量，该变量进入foreach循环并找到与该公司对应的那些用户。希望它有所帮助。

如何按公司名称显示搜索，但只显示名字和姓氏？

1 个答案: