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我有一個從BaseAdapter擴展的適配器。我正在使用Spinner。我不能當從它選擇的項目能夠激發onItemSelectedListener:無法讓onItemSelectedListener使用微調器觸發?
public class MyAdapter extends BaseAdapter {
..
}
public void foo() {
MyAdapter adapter = new MyAdapter(...);
adapter.setStuff(new String[] { "foo0", "foo1", "fooN" });
Spinner spinner = (Spinner)findViewById(R.id.foo);
spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> adapterView, View view, int position, long id) {
Log.e("####", "hello?...");
}
@Override
public void onNothingSelected(AdapterView<?> adapterView) {
Log.e("####", "hello?...");
}
});
spinner.setAdapter(adapter);
}
微調器運行良好,否則,我就當我選擇一個項目沒有收到任何回調。回調函數是否僅適用於ArrayAdapter派生的適配器?
感謝
嘗試在setAdapter()之前調用'setOnItemSelectedListener()'。 – CommonsWare 2012-03-04 15:26:43
嗨,好吧,試過但仍然沒有。哎呀。 – user291701 2012-03-04 15:29:44
'setOnItemSelectedListener(new AdapterView.OnItemSelectedListener(){'也許你有一個不同的'import'而不是'AdapterView' – 2012-03-04 15:33:43