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fix(location): app install fail and can not load more when loaded fin…
…ish list again refresh - app install fail: dagger2 `@BindsOptionalOf` use java.util.Optional(API 24+), now use middle layer Optional - load more fail: MVVMQuick framework `onListRefresh` not reset offset and refresh not reset `Adapter` load more finished status. Close: #2
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,187 @@ | ||
| package com.google.common.base; | ||
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| import com.annimon.stream.Objects; | ||
| import com.annimon.stream.OptionalDouble; | ||
| import com.annimon.stream.OptionalInt; | ||
| import com.annimon.stream.OptionalLong; | ||
| import com.annimon.stream.Stream; | ||
| import com.annimon.stream.function.Consumer; | ||
| import com.annimon.stream.function.Function; | ||
| import com.annimon.stream.function.Predicate; | ||
| import com.annimon.stream.function.Supplier; | ||
| import com.annimon.stream.function.ToDoubleFunction; | ||
| import com.annimon.stream.function.ToIntFunction; | ||
| import com.annimon.stream.function.ToLongFunction; | ||
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| import java.util.NoSuchElementException; | ||
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| /** | ||
| * author: xujiaji | ||
| * created on: 2018/9/17 0:41 | ||
| * description: 由于Dagger2 使用@BindsOptionalOf，必须使用{@code com.google.common.base.Optional} or {@code java.util.Optional}.<br> | ||
| * 但是引入Guava这么大个包很没有必要，{@code java.util.Optional}有必须得API 24+ <br> | ||
| * 因此写了这个中间层，包的路径为Guava中Optional的路径 | ||
| */ | ||
| public class Optional<T> { | ||
| private com.annimon.stream.Optional<T> optional; | ||
| private static final Optional<?> EMPTY = new Optional(); | ||
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| private final T value; | ||
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| private Optional() { | ||
| this.value = null; | ||
| } | ||
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| private Optional(T value) { | ||
| this.value = Objects.requireNonNull(value); | ||
| optional = com.annimon.stream.Optional.of(value); | ||
| } | ||
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| public static <T> Optional<T> of(T value) { | ||
| return new Optional<>(value); | ||
| } | ||
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| public static <T> Optional<T> ofNullable(T value) { | ||
| return value == null ? Optional.<T>empty() : of(value); | ||
| } | ||
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| @SuppressWarnings("unchecked") | ||
| public static <T> Optional<T> empty() { | ||
| return (Optional<T>) EMPTY; | ||
| } | ||
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| public static <T> Optional<T> absent() { | ||
| return (Optional<T>) EMPTY; | ||
| } | ||
|
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| public T get() { | ||
| if (value == null) { | ||
| throw new NoSuchElementException("No value present"); | ||
| } | ||
| return value; | ||
| } | ||
|
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| public boolean isPresent() { | ||
| return value != null; | ||
| } | ||
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| public void ifPresent(Consumer<? super T> consumer) { | ||
| if (value != null) | ||
| consumer.accept(value); | ||
| } | ||
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| public void ifPresentOrElse(Consumer<? super T> consumer, Runnable emptyAction) { | ||
| if (value != null) { | ||
| consumer.accept(value); | ||
| } else { | ||
| emptyAction.run(); | ||
| } | ||
| } | ||
|
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| public Optional<T> executeIfPresent(Consumer<? super T> consumer) { | ||
| ifPresent(consumer); | ||
| return this; | ||
| } | ||
|
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| public Optional<T> executeIfAbsent(Runnable action) { | ||
| if (value == null) | ||
| action.run(); | ||
| return this; | ||
| } | ||
|
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| public <R> R custom(Function<Optional<T>, R> function) { | ||
| Objects.requireNonNull(function); | ||
| return function.apply(this); | ||
| } | ||
|
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| public Optional<T> filter(Predicate<? super T> predicate) { | ||
| if (!isPresent()) return this; | ||
| return predicate.test(value) ? this : Optional.<T>empty(); | ||
| } | ||
|
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| public Optional<T> filterNot(Predicate<? super T> predicate) { | ||
| return filter(Predicate.Util.negate(predicate)); | ||
| } | ||
|
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| public <U> Optional<U> map(Function<? super T, ? extends U> mapper) { | ||
| if (!isPresent()) return empty(); | ||
| return Optional.ofNullable(mapper.apply(value)); | ||
| } | ||
|
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| public OptionalInt mapToInt(ToIntFunction<? super T> mapper) { | ||
| if (!isPresent()) return OptionalInt.empty(); | ||
| return OptionalInt.of(mapper.applyAsInt(value)); | ||
| } | ||
|
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| public OptionalLong mapToLong(ToLongFunction<? super T> mapper) { | ||
| if (!isPresent()) return OptionalLong.empty(); | ||
| return OptionalLong.of(mapper.applyAsLong(value)); | ||
| } | ||
|
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| public OptionalDouble mapToDouble(ToDoubleFunction<? super T> mapper) { | ||
| if (!isPresent()) return OptionalDouble.empty(); | ||
| return OptionalDouble.of(mapper.applyAsDouble(value)); | ||
| } | ||
|
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| public <U> Optional<U> flatMap(Function<? super T, Optional<U>> mapper) { | ||
| if (!isPresent()) return empty(); | ||
| return Objects.requireNonNull(mapper.apply(value)); | ||
| } | ||
|
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| @SuppressWarnings("unchecked") | ||
| public Stream<T> stream() { | ||
| if (!isPresent()) return Stream.empty(); | ||
| return Stream.of(value); | ||
| } | ||
|
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| @SuppressWarnings("unchecked") | ||
| public <R> Optional<R> select(Class<R> clazz) { | ||
| Objects.requireNonNull(clazz); | ||
| if (!isPresent()) return empty(); | ||
| return (Optional<R>) Optional.ofNullable(clazz.isInstance(value) ? value : null); | ||
| } | ||
|
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| public Optional<T> or(Supplier<Optional<T>> supplier) { | ||
| if (isPresent()) return this; | ||
| Objects.requireNonNull(supplier); | ||
| return Objects.requireNonNull(supplier.get()); | ||
| } | ||
|
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| public T orElse(T other) { | ||
| return value != null ? value : other; | ||
| } | ||
|
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| public T orElseGet(Supplier<? extends T> other) { | ||
| return value != null ? value : other.get(); | ||
| } | ||
|
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| public <X extends Throwable> T orElseThrow(Supplier<? extends X> exc) throws X { | ||
| if (value != null) return value; | ||
| else throw exc.get(); | ||
| } | ||
| @Override | ||
| public boolean equals(Object obj) { | ||
| if (this == obj) { | ||
| return true; | ||
| } | ||
|
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| if (!(obj instanceof com.annimon.stream.Optional)) { | ||
| return false; | ||
| } | ||
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| Optional<?> other = (Optional<?>) obj; | ||
| return Objects.equals(value, other.value); | ||
| } | ||
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| @Override | ||
| public int hashCode() { | ||
| return Objects.hashCode(value); | ||
| } | ||
|
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| @Override | ||
| public String toString() { | ||
| return value != null | ||
| ? String.format("Optional[%s]", value) | ||
| : "Optional.empty"; | ||
| } | ||
| } |
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