我有一个ListView,ListView的每一行我有一个微调。 在拥有上述ListView的MainActivity中,我有一个buttonSubmit 我希望当用户完成在每个ListView的Spinner上选择值时,他们按下buttonSubmit并且buttonSubmit的监听器将获得ListView的每个Spinner的所有值,并且将它们推入SQLiteDatabase。 我的问题在于,buttonSubmit不在ListView的类CustomAdapter中,它位于拥有ListView的MainActivity中。 所以我不知道如何从ListView的每一行中的多个Spinners获取值到类似字符串数组的东西当用户点击 buttonSubmit 这里是我的代码: *自定义适配器类的ListView的代码,其中有各行中的微调:如何从ListView中的多个微调器获取字符串值?
public class ChonLopTheoMonAdapter extends ArrayAdapter<MonHocDTO> implements AdapterView.OnItemSelectedListener{
Context context;
int layout;
ArrayList<MonHocDTO> listMonHoc;
ArrayAdapter<String> adapterSpinner;
String[] listLop;
public ChonLopTheoMonAdapter(Context context, int layout, ArrayList<MonHocDTO> listMonHoc) {
super(context, layout, listMonHoc);
this.context = context;
this.layout = layout;
this.listMonHoc = listMonHoc;
}
public class ViewHolder {
TextView txtTenMonHoc_ChonMon;
Spinner spChonLop;
}
@NonNull
@Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) this.context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
ViewHolder holder;
if (convertView == null) {
convertView = inflater.inflate(this.layout, parent, false);
holder = new ViewHolder();
holder.txtTenMonHoc_ChonMon = (TextView) convertView.findViewById(R.id.txtTenMonHoc_ChonMon);
holder.spChonLop = (Spinner) convertView.findViewById(R.id.spChonLop);
convertView.setTag(holder);
}
else{
holder = (ViewHolder) convertView.getTag();
}
holder.txtTenMonHoc_ChonMon.setText(this.listMonHoc.get(position).getTenMonHoc());
switch (this.listMonHoc.get(position).getIdMonHoc()){
case "QTM":
listLop = this.context.getResources().getStringArray(R.array.QTM);
break;
case "CTDL":
listLop = this.context.getResources().getStringArray(R.array.CTDL);
break;
case "TCC":
listLop = this.context.getResources().getStringArray(R.array.TCC);
break;
}
adapterSpinner = new ArrayAdapter<String>(this.context,android.R.layout.simple_spinner_item,listLop);
adapterSpinner.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
holder.spChonLop.setAdapter(adapterSpinner);
holder.spChonLop.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> adapterView, View view, int position, long l) {
}
@Override
public void onNothingSelected(AdapterView<?> adapterView) {
}
});
return convertView;
}
@Override
public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
}
@Override
public void onNothingSelected(AdapterView<?> adapterView) {
}
}
*在MainActivity的代码拥有的ListView:
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
ListView lvChonLopTheoMonHoc;
Button btnXacNhanChonLop;
MonHocDAO monHocDAO;
ArrayList<MonHocDTO> listMonHoc;
ChonLopTheoMonAdapter chonLopTheoMonAdapter;
TypedArray thuTuMonHoc;
String[] tenMonHoc;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
addControls();
}
private void addControls() {
monHocDAO = new MonHocDAO(MainActivity.this);
lvChonLopTheoMonHoc = (ListView) findViewById(R.id.lvChonLopTheoMonHoc);
btnXacNhanChonLop = (Button) findViewById(R.id.btnXacNhanChonLop);
listMonHoc = new ArrayList<>();
listMonHoc = monHocDAO.layListMonHoc("NAM11");
chonLopTheoMonAdapter = new ChonLopTheoMonAdapter(MainActivity.this, R.layout.layout_chon_mon_hoc_theo_lop, listMonHoc);
chonLopTheoMonAdapter.notifyDataSetChanged();
lvChonLopTheoMonHoc.setAdapter(chonLopTheoMonAdapter);
btnXacNhanChonLop.setOnClickListener(MainActivity.this);
}
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.btnXacNhanChonLop:
break;
}
}
}
请帮我:(
*以下是UI: enter image description here
大卫你好,非常感谢你帮助我,我解决了我的问题。 再次,谢谢!!!!!! ^^ –