Spinner的使用Adapter

final TextView show=(TextView) findViewById(R.id.showTV);
        Spinner select=(Spinner) findViewById(R.id.selectSP);
        //设置spinner中显示的条目的风格
        ArrayAdapter<String> adapter=new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, mCountries);
        //设置spinner中下拉列表的风格
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        select.setAdapter(adapter);
        select.setOnItemSelectedListener(new OnItemSelectedListener(){

			@Override
			public void onItemSelected(AdapterView<?> parent, View view,
					int position, long id) {
				show.setText("你的血型是:"+mCountries[position]);
			}

			@Override
			public void onNothingSelected(AdapterView<?> parent) {
				show.setText("你尚未选择！");
			}
        	
        });