尝试对多个微调器执行setSelection（）（不起作用）

Question

我正在尝试根据在微调器区域，区域和vdc上选择的内容在微调器present_zone，present_district和present_vdc上设置条目。

通过方法setSpinnerenries（）设置条目，该方法根据传递的文本从string.xml设置条目。

但是，当选中CheckBox时，setSelection仅将条目设置为第一个微调器（present_zone）。然后，我必须再次打勾才能将条目设置为第二个微调器。 我不知道为什么只需单击一次即可设置所有微调器条目。 //根据所选区域在strings.xml中设置微调器中的当前区域条目，否则设置为空

present_zone.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener()
{
    public void onItemSelected(AdapterView<?> arg0, View arg1,int arg2, long arg3)
    {
        if(arg2 > 0){
            setSpinnerEntries(present_zone, present_district);
        }
        else{
            present_zone.setSelection(0);
            setSpinnerNull(present_district);
            setSpinnerNull(present_vdc);
        }

    } public void onNothingSelected(AdapterView<?> arg0) {}
});

//Sets present VDC entries in spinner from strings.xml if district is chosen otherwise sets null



present_district.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener()
{
    public void onItemSelected(AdapterView<?> arg0, View arg1,int arg2, long arg3)
    {
        if(arg2 > 0){
            Toast.makeText(Form.this,arg2+"",Toast.LENGTH_SHORT).show();
            setSpinnerEntries(present_district, present_vdc);
        }
        else{
             setSpinnerNull(present_vdc);
        }
    }
    public void onNothingSelected(AdapterView<?> arg0) {}
});

//sets entries in spinners present_zone, present_district and present_vdc when ticked ,the spinners are set based on what isSelectedItem in zone, district and vdc



tick_address_copy_paste.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener()
{
    @Override
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)
    {
        int copy_zone = (int) zone.getSelectedItemId();
        int copy_district = (int) district.getSelectedItemId();
        int copy_vdc = (int) vdc.getSelectedItemId();

        if (isChecked) {
            if(copy_zone>0){
                present_zone.setSelection(copy_zone, false);
               setSpinnerEntries(present_district, present_vdc);
                if(copy_district>0){
                    present_district.setSelection(copy_district, false);
                    present_vdc.setSelection(copy_vdc, false);
                }
            }
        }
    }
});
//sets entries to spinner from strings.xml file

private void setSpinnerEntries(Spinner setFrom,Spinner setTo) {
    String text = setFrom.getSelectedItem().toString();

    ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(Form.this,
                getStringIdentifier(Form.this, text), android.R.layout.simple_spinner_item);
    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    setTo.setAdapter(adapter);
}

//returns resource identifier from text

private static int getStringIdentifier(Context context, String name) {
    return context.getResources().getIdentifier(name, "array", context.getPackageName());
}

这是我的布局xml：

<LinearLayout
    android:id="@+id/zone"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_marginTop="5dp"
    android:orientation="vertical">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="  Zone"
        android:textColor="@color/colorAccent" />

    <Spinner
        android:id="@+id/present_zone"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:entries="@array/zones"
        android:spinnerMode="dialog" />
</LinearLayout>

<LinearLayout
    android:id="@+id/district"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_marginTop="5dp"
    android:orientation="vertical">
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="  District"
        android:textColor="@color/colorAccent" />

    <Spinner
        android:id="@+id/present_district"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:spinnerMode="dialog" />
</LinearLayout>

<LinearLayout
    android:id="@+id/village"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_marginTop="5dp"
    android:orientation="vertical">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="  Village"
        android:textColor="@color/colorAccent" />

    <Spinner
        android:id="@+id/present_vdc"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:spinnerMode="dialog" />
</LinearLayout>