小皮-04-17 13:21:011楼
android.preference.ListPreference 源码如下:
@Override
protected void onPrepareDialogBuilder(Builder builder) {
super.onPrepareDialogBuilder(builder);
if (mEntries == null || mEntryValues == null) {
throw new IllegalStateException(
"ListPreference requires an entries array and an entryValues array.");
}
mClickedDialogEntryIndex = getValueIndex();
builder.setSingleChoiceItems(mEntries, mClickedDialogEntryIndex,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
mClickedDialogEntryIndex = which;
/*
* Clicking on an item simulates the positive button
* click, and dismisses the dialog.
*/
ListPreference.this.onClick(dialog, DialogInterface.BUTTON_POSITIVE);
dialog.dismiss();
}
});
/*
* The typical interaction for list-based dialogs is to have
* click-on-an-item dismiss the dialog instead of the user having to
* press 'Ok'.
*/
builder.setPositiveButton(null, null);
}
你设置的监听器被super.onPrepareDialogBuilder(builder)覆盖了
