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package com.wireguard.android;
import android.databinding.BindingAdapter;
import android.databinding.ObservableArrayMap;
import android.databinding.ObservableList;
import android.widget.ListView;
/**
* Static methods for use by generated code in the Android data binding library.
*/
@SuppressWarnings("unused")
public final class BindingAdapters {
@BindingAdapter({"items", "layout"})
public static <K, V> void arrayMapBinding(final ListView view,
final ObservableArrayMap<K, V> oldMap,
final int oldLayoutId,
final ObservableArrayMap<K, V> newMap,
final int newLayoutId) {
// Remove any existing binding when there is no new map.
if (newMap == null) {
view.setAdapter(null);
return;
}
// The ListAdapter interface is not generic, so this cannot be checked.
@SuppressWarnings("unchecked")
ObservableArrayMapAdapter<K, V> adapter =
(ObservableArrayMapAdapter<K, V>) view.getAdapter();
// If the layout changes, any existing adapter must be replaced.
if (newLayoutId != oldLayoutId)
adapter = null;
// Add a new binding if there was none, or if it must be replaced due to a layout change.
if (adapter == null) {
adapter = new ObservableArrayMapAdapter<>(view.getContext(), newLayoutId, newMap);
view.setAdapter(adapter);
} else if (newMap != oldMap) {
// Changing the list only requires modifying the existing adapter.
adapter.setMap(newMap);
}
}
@BindingAdapter({"items", "layout"})
public static <T> void listBinding(final ListView view,
final ObservableList<T> oldList, final int oldLayoutId,
final ObservableList<T> newList, final int newLayoutId) {
// Remove any existing binding when there is no new list.
if (newList == null) {
view.setAdapter(null);
return;
}
// The ListAdapter interface is not generic, so this cannot be checked.
@SuppressWarnings("unchecked")
ObservableListAdapter<T> adapter = (ObservableListAdapter<T>) view.getAdapter();
// If the layout changes, any existing adapter must be replaced.
if (newLayoutId != oldLayoutId)
adapter = null;
// Add a new binding if there was none, or if it must be replaced due to a layout change.
if (adapter == null) {
adapter = new ObservableListAdapter<>(view.getContext(), newLayoutId, newList);
view.setAdapter(adapter);
} else if (newList != oldList) {
// Changing the list only requires modifying the existing adapter.
adapter.setList(newList);
}
}
private BindingAdapters() {
// Prevent instantiation.
}
}
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