/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.databinding.adapters;
import android.databinding.BindingAdapter;
import android.widget.AbsSpinner;
import android.widget.ArrayAdapter;
import android.widget.SpinnerAdapter;
public class AbsSpinnerBindingAdapter {
@BindingAdapter({"android:entries"})
public static void setEntries(AbsSpinner view, CharSequence[] entries) {
if (entries != null) {
SpinnerAdapter oldAdapter = view.getAdapter();
boolean changed = true;
if (oldAdapter != null && oldAdapter.getCount() == entries.length) {
changed = false;
for (int i = 0; i < entries.length; i++) {
if (!entries[i].equals(oldAdapter.getItem(i))) {
changed = true;
break;
}
}
}
if (changed) {
ArrayAdapter<CharSequence> adapter =
new ArrayAdapter<CharSequence>(view.getContext(),
android.R.layout.simple_spinner_item, entries);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
view.setAdapter(adapter);
}
} else {
view.setAdapter(null);
}
}
}