Android spinner中如何設置默認值？

woff

spinner中如何設置默認值？

1. private static final String[] mCountries = { "China" ,"Russia", "Germany",
   
2.   "Ukraine", "Belarus", "USA" };
   
3. 
   
4. Spinner spinner1 = (Spinner)findViewById(R.id.spinner_1);
   
5.   int mCountriesLength = mCountries.length;
   
6.   allcountries = new ArrayList<String>();
   
7.   for(int i=0;i<mCountriesLength;i++){
   
8.    allcountries.add(mCountries[i]);
   
9.   }
   
10.   aspnCountries = new ArrayAdapter<String>(this , android.R.layout.simple_spinner_item, allcountries);   
    
11.   aspnCountries.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    
12.   spinner1.setAdapter(aspnCountries);

複製代碼

比如如何設置USA為默認顯示的值

可用
spinner.setSelection(5)；