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我有我已經設置了使用定製ArrayAdapter旋:OnItemSelectedListener不工作的噴絲
private static class CustomAdapter<T> extends ArrayAdapter<String> {
public CustomAdapter(Context context, int textViewResourceId, String[] objects) {
super(context, textViewResourceId, objects);
}
public View getView(int position, View convertView, ViewGroup parent) {
View view = super.getView(position, convertView, parent);
TextView textView = (TextView) view.findViewById(android.R.id.text1);
textView.setText("");
return view;
}
據如下初始化(旋轉器旋轉器;語句是向上以上爲類變量):
this.spinner = (Spinner) findViewById(R.id.spinner1);
CustomAdapter<String> adapter = new CustomAdapter<String>(this,
android.R.layout.simple_spinner_dropdown_item, new String[] {"Set Homepage"});
spinner.setAdapter(adapter);
spinner.setOnItemSelectedListener(this);
我已經實現了OnItemSelectedListener:
public class MainActivity extends Activity implements OnItemSelectedListener{...}
,並有要求回調:
//spinner methods
@Override
public void onItemSelected(AdapterView<?> parent, View view,
int pos, long id) {
// TODO Auto-generated method stub
//if (pos == 1){
Toast.makeText(this, "Person wants to change the homepage", Toast.LENGTH_SHORT).show();
//}
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
// TODO Auto-generated method stub
//Toast.makeText(this, "Person wants to change the homepage", Toast.LENGTH_SHORT).show();
}
對於微調的XML:
<Spinner
android:id="@+id/spinner1"
android:layout_width="45dp"
android:layout_height="45dp"
android:background="@drawable/ic_menu_moreoverflow_holo_dark" />
的問題是,當一個項目從微調選擇,什麼都沒有發生,即使在我刪除了所有條件,你可以看到以上。
如果可能,請將整個班級代碼放在一起。 – DcodeChef
它差不多700行,所以你們,我不太確定它是如何有助於說實話,你有什麼想法? – timeshift117
我在這段代碼中看不到任何錯誤。代碼/佈局的其餘部分可能是錯誤的。 –