我可以通过这种方式在操作栏中获取 Spinner; re/values/languages.xml 中的项目数组
<string-array name="languages">
<item>Finnish</item>
<item>French</item>
<item>German</item>
<item>Slovakian</item>
<item>Polish</item>
</string-array>
在 res/menu/main.xml 中
<item
android:id="@+id/menuSort"
android:actionLayout="@layout/spinner"
android:showAsAction="ifRoom"
android:title="@string/choose"/>
在 res/layout/spinner.xml 中
<Spinner
android:id="@+id/spinner"
android:layout_width="150dp"
android:layout_height="wrap_content"
android:entries="@array/languages"/>
最后是 Activity 课;
public class Base_Activity extends Activity {
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
final Spinner spinner = new Spinner(this);
Log.i("DEBUG1", "CHECKPOINT1");
ArrayAdapter<String> spinnerArrayAdapter = new ArrayAdapter<String>(
this, android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(spinnerArrayAdapter);
Log.i("DEBUG2", "CHECKPOINT2");
spinnerArrayAdapter.setDropDownViewResource(0);
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
String items=spinner.getSelectedItem().toString();
Log.i("Selected item : ",items);
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
return true;
}
我没有得到的是在微调项的 ItemSelected 上没有任何反应。正如您从我的 xml 文件中看到的那样,我什至不需要适配器来获取微调器。但是我正在使用适配器来获取 OnItemSelected。请帮我看看这是怎么回事?
最佳答案
试试这个可能对你有帮助
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
final Spinner spinner = (Spinner) menu.getItem(0).getActionView().findViewById(R.id.spinner);
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
String items = spinner.getSelectedItem().toString();
Log.i("Selected item : ", items);
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
return super.onCreateOptionsMenu(menu);
}
关于java - 微调器的 OnItemClickListener,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/21600781/