小编jim*_*ska的帖子

我试图让几个微调器根据之前的微调器选择动态改变.我可以更新列表但是当我使用adapter.clear()时它会崩溃.这是我的代码:

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.TextView;

public class CarKitsAct extends Activity{

    ArrayAdapter<String> adMod, adEd;
    String[] models, edition;
    Boolean initSpMan = true;
    Boolean initSpMod = true;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.carkitslayout);

    // Construct TextViews
        TextView textMan = (TextView) findViewById(R.id.textMan);
        textMan.setText(R.string.selectmanufacturer);
        TextView textMod = (TextView) findViewById(R.id.textMod);
        textMod.setText(R.string.selectmodel);
        TextView textEd = (TextView) findViewById(R.id.textEd);
        textEd.setText(R.string.selectedition);

    // Construct Spinners
        Spinner spMan = (Spinner) findViewById(R.id.spMan);
        Spinner spMod …