从第一个微调器设置第二个微调器适配器答案

【问题标题】：set second spinner adapter from first spinner从第一个微调器设置第二个微调器适配器
【发布时间】：2026-02-08 17:30:01
【问题描述】：

我有两个旋转器，我想在选择Spinner 1中的某些项目时更改第二旋转器的阵列适配器。我的适配器正常工作，但是当我在第二个微调器中选择项目时，选择的第二个微调器项目不会改变。

ArrayAdapter adapter1 = ArrayAdapter.createFromResource(this,R.array.weapons, android.R.layout.simple_spinner_item);
    s1.setAdapter(adapter1);
    s1.setOnItemSelectedListener(this);
    s2.setOnItemSelectedListener(this);

@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
    switch (parent.getId()) {
        case R.id.rspin:
            wepone = s1.getSelectedItem();
            break;
        case R.id.rspin2:
            n = s2.getSelectedItemPosition();
            com.setVisibility(View.GONE);
            break;
    }

    String[] weaponone = getResources().getStringArray(R.array.weapons);
    m = Arrays.asList(weaponone).indexOf(wepone);
    switch (m) {
        case (3):
ArrayAdapter adapter2 = ArrayAdapter.createFromResource(release.this,R.array.weapons, android.R.layout.simple_spinner_item);
    s2.setAdapter(adapter2);
switch(n){
case(1):
ft.replace(R.id.all , combofrag, "p42");
ft.commit();
break;
}
break;
}

【问题讨论】：

你能更具体地解释一下你到底想要什么吗？
如果我在微调器 1 中选择项目 3，那么微调器 2 的阵列适配器应更改为适配器 2，当我选择不同的项目时，它应更改为另一个适配器。

标签： android arrays spinner android-arrayadapter adapter

【解决方案1】：

试试这个代码

    Spinner sp1,sp2;

    String num[] = {"1","2","3","4","5"};
    String nums[] = {"1","2","3","4","5","6","7","8"};


        sp1 = (Spinner) findViewById(R.id.sp1);
        sp2 = (Spinner) findViewById(R.id.sp2);


        ArrayAdapter ad1=new ArrayAdapter(this,android.R.layout.simple_spinner_item,num);
        ad1.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);
        sp1.setAdapter(ad1);

        sp1.setOnItemSelectedListener(new OnItemSelectedListener() {

            @Override
            public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
                // TODO Auto-generated method stub


                long p = sp1.getItemIdAtPosition(arg2+1);
                Toast.makeText(getApplicationContext(), "Position : " +p, Toast.LENGTH_SHORT).show();

                if(p == 2){
                    callSpinner();
                }

            }

            @Override
            public void onNothingSelected(AdapterView<?> arg0) {
                // TODO Auto-generated method stub

            }
        });


        sp2.setOnItemSelectedListener(new OnItemSelectedListener() {

            @Override
            public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
                // TODO Auto-generated method stub
                //Code Here
            }

            @Override
            public void onNothingSelected(AdapterView<?> arg0) {
                // TODO Auto-generated method stub

            }
        });

       protected void callSpinner() {
        // TODO Auto-generated method stub
        ArrayAdapter ad2=new ArrayAdapter(this, android.R.layout.simple_spinner_item,nums);
        ad2.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);
        sp2.setAdapter(ad2);
    }

对我来说很好用……

【讨论】：