Android 如何在运行时浇注旋转器?
我不知道出了什么问题,我只想在运行时填充微调器。但当我在手机上运行我的应用程序时,它会用我的类路径填充微调器。下面是我正在做的代码Android 如何在运行时浇注旋转器?,android,android-arrayadapter,Android,Android Arrayadapter,我不知道出了什么问题,我只想在运行时填充微调器。但当我在手机上运行我的应用程序时,它会用我的类路径填充微调器。下面是我正在做的代码 public class FullscreenActivity extends Activity { Spinner spSelectTeam; TextView tvTeam; ArrayList<TeamClass> teamClasses; @Override public void onCreate(Bu
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;
}
}
请帮忙。提前感谢您需要为
团队类
重写toString()
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);
}
添加您的
TeamClass
@Override
public String toString() {
return this.TeamName ;
}
还可以使用以下命令更改代码,如
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;
}
列出团队类;
teamClasses=populateList();
公共列表populateList(){
List teamClasses=new ArrayList();
添加(新的TeamClass(“----全部------”);
添加(新的TeamClass(“计算机直接”));
添加(新的TeamClass(“数据系统”);
添加(新的TeamClass(“主机交互”));
返回班;
}
只需将以下内容添加到您的TeamClass中:
@Override
public String toString() {
return getTeamName();
}
但是,他还需要扩展
BaseAdapter
类,以便提供自定义布局,尽管在这种情况下,他可以像barq建议的那样重写toString()
方法。这个方法可以帮助我。如何更改微调器中文本的颜色?它是白色的,我想换成黑色
@Override
public String toString() {
return getTeamName();
}