如何在运行时间填充微调器？

Question

我不知道出了什么问题，我只想在运行时间填充 Spinner。但是当我运行我的应用程序在移动设备上时，它会用我的 class 路径填充微调器。这是我正在做的代码

public class FullscreenActivity extends Activity {
    Spinner spSelectTeam;
    TextView tvTeam;
    ArrayList<TeamClass> teamClasses;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.layout2);
        init();
        teamClasses = populateList();
        //applying adapter
        ArrayAdapter myAdapter = new ArrayAdapter(this, android.R.layout.simple_spinner_item, teamClasses);
        spSelectTeam.setAdapter(myAdapter);
    }

    void init(){
        spSelectTeam = (Spinner) findViewById(R.id.sp_team);
        tvTeam = (TextView) findViewById(R.id.tv_team);
    }

    public ArrayList<TeamClass> populateList() {
        //ArrayList<TeamClass> myTeamName = new ArrayList<TeamClass>();
        ArrayList<TeamClass> teamClasses = new ArrayList<>();
        teamClasses.add(new TeamClass("----- All -----"));
        teamClasses.add(new TeamClass("Computer Direct"));
        teamClasses.add(new TeamClass("Datasys"));
        teamClasses.add(new TeamClass("Host Interactive"));
        return teamClasses;
    }
}

适配器的 class 是

public class TeamClass {
    private String TeamName;

    public TeamClass(String teamName){
        this.TeamName = teamName;
    }

    public String getTeamName() {
        return TeamName;
    }

    public void setTeamName(String teamName) {
        TeamName = teamName;
    }
}

请帮忙。提前致谢

Answer 1

您需要为 TeamClass 覆盖 toString()。

Answer 2

试试这个...

  @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.layout2);
        init();
        teamClasses = populateList();

        //applying adapter

        ArrayAdapter myAdapter = new ArrayAdapter(this, android.R.layout.simple_spinner_item, teamClasses);
myAdapter .setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

 spSelectTeam.setAdapter(myAdapter);



    }

Answer 3

加入你的TeamClass

 @Override
 public String toString() {
    return this.TeamName ;
}

也像下面这样更改您的代码..

List<TeamClass> teamClasses;

teamClasses = populateList();

public List<TeamClass> populateList() {
    List<TeamClass> teamClasses = new ArrayList<TeamClass>();
    teamClasses.add(new TeamClass("----- All -----"));
    teamClasses.add(new TeamClass("Computer Direct"));
    teamClasses.add(new TeamClass("Datasys"));
    teamClasses.add(new TeamClass("Host Interactive"));
    return teamClasses;
}

Answer 4

只需将以下内容添加到您的 TeamClass 中：

@Override
public String toString() {
    return getTeamName();
}

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