我正在尝试在我的应用程序中使用微调器对象,但我遇到了麻烦,事实上,它在我的活动开始时被激活。虽然我希望在单击并选择所需项目时启用它。
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, R.array.ElementaryOperations, android.R.layout.simple_spinner_dropdown_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
s1.setAdapter(adapter);
s1.setOnItemSelectedListener(new OnItemSelectedListener(){
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3){
index1 = s1.getSelectedItemPosition()+1;
if (index1 == 3){
finish();
startActivity(prod);//
}
}
public void onNothingSelected(AdapterView<?> arg0) {}
});