<分区>
我试图制作一个包含 ID 和标题的自定义 Spinner。此 Spinner 显示标题,但在我的代码中的任何地方我都可以访问选定的 ID。我该怎么做。它就像 C# 中的组合框。 谢谢。
<分区>
我试图制作一个包含 ID 和标题的自定义 Spinner。此 Spinner 显示标题,但在我的代码中的任何地方我都可以访问选定的 ID。我该怎么做。它就像 C# 中的组合框。 谢谢。
最佳答案
我解决了! 起初我创建了一个自定义适配器:
public class SimpleCustomeAdapter extends ArrayAdapter<String>{
Context c;
List<String> id;
List<String> title;
public SimpleCustomeAdapter(Context context, int textViewResourceId,List<String> id, List<String> title) {
super(context, textViewResourceId,id);
c=context;
this.id=id;
this.title=title;
}
@Override
public View getDropDownView(int position, View convertView,ViewGroup parent) {
return getCustomView(position, convertView, parent);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
return getCustomView(position, convertView, parent);
}
public View getCustomView(int position, View convertView, ViewGroup parent) {
this.setDropDownViewResource(R.layout.spinner_layout);
LayoutInflater inflater=LayoutInflater.from(c);
View row=inflater.inflate(R.layout.spinner_layout, parent, false);
TextView idTextView=(TextView)row.findViewById(R.id.idCustomspinnertextView);
idTextView.setText(id.get(position));
TextView titleTextView=(TextView)row.findViewById(R.id.titleCustomspinnertextView);
titleTextView.setText(title.get(position));
Typeface externalFont=Typeface.createFromAsset(c.getAssets(), "font/BKOODB.TTF");
titleTextView.setTypeface(externalFont);
titleTextView.setTextSize(25);
return row;
}
然后,我创建了一个自定义 Spinner:
public class CustomSpinner extends Spinner {
public CustomSpinner(Context context, AttributeSet attrs, int defStyle,
int mode) {
super(context, attrs, defStyle, mode);
// TODO Auto-generated constructor stub
}
public CustomSpinner(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
}
public CustomSpinner(Context context, int mode) {
super(context, mode);
// TODO Auto-generated constructor stub
}
List<String> idList;
List<String> titleList;
public void setAdapter(SimpleCustomeAdapter adapter) {
// TODO Auto-generated method stub
super.setAdapter(adapter);
this.idList= adapter.id;
this.titleList = adapter.title;
}
public void setSelectedId(long id){
for (int i = 0; i < idList.size(); i++) {
if(idList.get(i).contains(id+""))
{
this.setSelection(i);
break;
}
}
Log.d("SpinnerError", "This id is not in adapter!");
}
public CustomSpinner(Context context) {
super(context);
// TODO Auto-generated constructor stub
}
现在我的 Activity 代码是这样的:
public class MyActivity extends Activity {
CustomSpinner customspinner1;
Button button1;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my);
customspinner1=(CustomSpinner)findViewById(R.id.customSpinner1);
button1=(Button) findViewById(R.id.button1);
List<String> payoffTypeList = new ArrayList<String>();
List<String> payoffTypeIdList = new ArrayList<String>();
DatabaseAccess dba = new DatabaseAccess(this);
Cursor cur = dba.getAllPayofftype();
if (cur.moveToFirst()) {
do {
payoffTypeList.add(cur.getString(1));
payoffTypeIdList.add(cur.getString(0));
} while (cur.moveToNext());
}
customspinner1.setAdapter(new SimpleCustomeAdapter(this, R.layout.spinner_layout,payoffTypeIdList, payoffTypeList));
///example
customspinner1.setSelectedId(12);
button1.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
Log.d("myTag", "SlectedId = "+customspinner1.getSelectedId());
}
});
}
关于android - 如何在 C# ComboBox 等微调器中获取选定值?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/14354782/