toad.city
That fuck shit the fascists are using
1package org.tm.archive.util;
2
3import androidx.annotation.NonNull;
4import androidx.lifecycle.MutableLiveData;
5
6import org.whispersystems.signalservice.api.util.Preconditions;
7
8
9/**
10 * Helps prevent all the @Nullable warnings when working with LiveData.
11 */
12public class DefaultValueLiveData<T> extends MutableLiveData<T> {
13
14 private final T defaultValue;
15
16 public DefaultValueLiveData(@NonNull T defaultValue) {
17 super(defaultValue);
18 this.defaultValue = defaultValue;
19 }
20
21 @Override
22 public void postValue(@NonNull T value) {
23 Preconditions.checkNotNull(value);
24 super.postValue(value);
25 }
26
27 @Override
28 public void setValue(@NonNull T value) {
29 Preconditions.checkNotNull(value);
30 super.setValue(value);
31 }
32
33 @Override
34 public @NonNull T getValue() {
35 T value = super.getValue();
36 return value != null ? value : defaultValue;
37 }
38}