我有一个SimpleCursorAdapter，所以我必须复制在这篇文章中使用响应的数据。所以，我建议你试试这个方法:

for (int i = 0; i < spinnerRegion.getAdapter().getCount(); i++) {
    if (spinnerRegion.getItemIdAtPosition(i) == Integer
        .valueOf(signal.getInt(signal
            .getColumnIndexOrThrow("id_region")))) {
        spinnerRegion.setSelection(i);
        break;
    }
}

我认为这是一个真正的方法

在我的例子中，这段代码拯救了我:

public static void selectSpinnerItemByValue(Spinner spnr, long value) {
    SpinnerAdapter adapter = spnr.getAdapter();
    for (int position = 0; position < adapter.getCount(); position++) {
        if(adapter.getItemId(position) == value) {
            spnr.setSelection(position);
            return;
        }
    }
}

Some explanation (at least for Fragments - never tried with pure Activity). Hope it helps someone to understand Android better. Most popular answer by Arun George is correct but don't work in some cases. The answer by Marco HC uses Runnable wich is a last resort due to additional CPU load. The answer is - you should simply choose correct place to call to setSelection(), for example it works for me: @Override public void onResume() { super.onResume(); yourSpinner.setSelection(pos); } But it won't work in onCreateView(). I suspect that is the reason for the interest to this topic. The secret is that with Android you can't do anything you want in any method - oops:( - components may just not be ready. As another example - you can't scroll ScrollView neither in onCreateView() nor in onResume() (see the answer here)

这招对我很管用:

mySpinner.post(new Runnable() {
    @Override
    public void run() {
        mySpinner.setSelection(position);

        spinnerAdapter.notifyDataSetChanged();
    }
});

如果你有一个联系人列表，你可以这样做:

((Spinner) view.findViewById(R.id.mobile)).setSelection(spinnerContactPersonDesignationAdapter.getPosition(schoolContact.get(i).getCONT_DESIGNATION()));

找到一个值并选择它:

private void selectValue(Spinner spinner, Object value) {
    for (int i = 0; i < spinner.getCount(); i++) {
        if (spinner.getItemAtPosition(i).equals(value)) {
            spinner.setSelection(i);
            break;
        }
    }
}