本文整理了Java中io.reactivex.Flowable.map()方法的一些代码示例，展示了Flowable.map()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Flowable.map()方法的具体详情如下：
包路径：io.reactivex.Flowable
类名称：Flowable
方法名：map

Flowable.map介绍

[英]Returns a Flowable that applies a specified function to each item emitted by the source Publisher and emits the results of these function applications.

Backpressure: The operator doesn't interfere with backpressure which is determined by the source Publisher's backpressure behavior. Scheduler: map does not operate by default on a particular Scheduler.
[中]返回一个可流动函数，该函数将指定函数应用于源发布服务器发出的每个项，并发出这些函数应用程序的结果。
背压：操作员不会干扰由源发布者的背压行为确定的背压。计划程序：默认情况下，映射不会在特定计划程序上运行。

代码示例

代码示例来源：origin: ReactiveX/RxJava

@Override
  public Publisher<Integer> apply(Flowable<Integer> g) {
    return g.map(new Function<Integer, Integer>() {
      @Override
      public Integer apply(Integer v) throws Exception {
        return v + 1;
      }
    });
  }
};

代码示例来源：origin: ReactiveX/RxJava

@Override
  public Publisher<Integer> apply(Flowable<Integer> g) {
    return g.map(new Function<Integer, Integer>() {
      @Override
      public Integer apply(Integer v) throws Exception {
        return v + 1;
      }
    });
  }
};

代码示例来源：origin: ReactiveX/RxJava

@Override
public Flowable<Integer> apply(final Integer leftValue, Flowable<Integer> rightValues) {
  return rightValues.map(new Function<Integer, Integer>() {
    @Override
    public Integer apply(Integer rightValue) throws Exception {
      return add.apply(leftValue, rightValue);
    }
  });
}

代码示例来源：origin: ReactiveX/RxJava

@Override
  public Publisher<String> apply(Flowable<Integer> t1) {
    return t1.map(new Function<Integer, String>() {
      @Override
      public String apply(Integer v) {
        return String.valueOf(v);
      }
    });
  }
})

代码示例来源：origin: ReactiveX/RxJava

@Override
public Flowable<String> apply(Flowable<Map<String, String>> f) {
  return f.map(new Function<Map<String, String>, String>() {
    @Override
    public String apply(Map<String, String> map) {
      return map.get("firstName");
    }
  });
}

代码示例来源：origin: ReactiveX/RxJava

@Override
  public Flowable<Integer> apply(Integer v) throws Exception {
    return Flowable.range(1, 2).map(new Function<Integer, Integer>() {
      @Override
      public Integer apply(Integer v) throws Exception {
        throw new TestException();
      }
    });
  }
})

代码示例来源：origin: ReactiveX/RxJava

@Override
  public Flowable<Object> apply(Integer v) throws Exception {
    return Flowable.range(1, 2).map(new Function<Integer, Object>() {
      @Override
      public Object apply(Integer w) throws Exception {
        throw new TestException();
      }
    });
  }
})

代码示例来源：origin: ReactiveX/RxJava

@Override
  public Flowable<Integer> apply(Integer v) throws Exception {
    return Flowable.range(1, 2).map(new Function<Integer, Integer>() {
      @Override
      public Integer apply(Integer w) throws Exception {
        throw new TestException();
      }
    });
  }
}, true)

代码示例来源：origin: ReactiveX/RxJava

@Override
  public Flowable<Object> apply(Flowable<Object> f) throws Exception {
    return f.map(Functions.identity());
  }
});

代码示例来源：origin: ReactiveX/RxJava

@Override
  public Object apply(Flowable<Object> f) throws Exception {
    return f.map(Functions.identity());
  }
}, false, 1, 1, 1);

代码示例来源：origin: ReactiveX/RxJava

@Override
  public Publisher<Integer> createPublisher(long elements) {
    return
        Flowable.range(0, (int)elements).map(Functions.<Integer>identity())
    ;
  }
}

代码示例来源：origin: ReactiveX/RxJava

@Test(expected = NullPointerException.class)
public void mapReturnsNull() {
  just1.map(new Function<Integer, Object>() {
    @Override
    public Object apply(Integer v) {
      return null;
    }
  }).blockingSubscribe();
}

代码示例来源：origin: ReactiveX/RxJava

@Test
public void testTake2() {
  Flowable<Integer> f = Flowable.just(1, 2, 3, 4, 5);
  Iterable<String> it = Arrays.asList("a", "b", "c", "d", "e");
  SquareStr squareStr = new SquareStr();
  f.map(squareStr).zipWith(it, concat2Strings).take(2).subscribe(printer);
  assertEquals(2, squareStr.counter.get());
}

代码示例来源：origin: ReactiveX/RxJava

@SuppressWarnings("unchecked")
  @Test
  public void source() {
    Flowable<Integer> f = Flowable.just(1);

    assertSame(f, ((HasUpstreamPublisher<Integer>)f.map(Functions.<Integer>identity())).source());
  }
}

代码示例来源：origin: ReactiveX/RxJava

@Test(expected = IllegalArgumentException.class)
public void testMapWithIssue417() {
  Flowable.just(1).observeOn(Schedulers.computation())
      .map(new Function<Integer, Integer>() {
        @Override
        public Integer apply(Integer arg0) {
          throw new IllegalArgumentException("any error");
        }
      }).blockingSingle();
}

代码示例来源：origin: ReactiveX/RxJava

@Test
public void fusionCrash() {
  MulticastProcessor<Integer> mp = Flowable.range(1, 5)
  .map(new Function<Integer, Integer>() {
    @Override
    public Integer apply(Integer v) throws Exception {
      throw new IOException();
    }
  })
  .subscribeWith(MulticastProcessor.<Integer>create());
  mp.test().assertFailure(IOException.class);
}

代码示例来源：origin: ReactiveX/RxJava

@Test
public void synchronousFusedCrash() {
  Completable.concat(Flowable.range(1, 2).map(new Function<Integer, Completable>() {
    @Override
    public Completable apply(Integer v) throws Exception {
      throw new TestException();
    }
  }))
  .test()
  .assertFailure(TestException.class);
}

代码示例来源：origin: ReactiveX/RxJava

@Test
public void fusedCrash() {
  Flowable.range(1, 2)
  .map(new Function<Integer, Object>() {
    @Override
    public Object apply(Integer v) throws Exception { throw new TestException(); }
  })
  .concatMap(Functions.justFunction(Flowable.just(1)))
  .test()
  .assertFailure(TestException.class);
}

代码示例来源：origin: ReactiveX/RxJava

@Test
public void fusedSync() {
  TestSubscriber<Integer> ts = SubscriberFusion.newTest(QueueFuseable.ANY);
  Flowable.range(1, 5)
  .map(Functions.<Integer>identity())
  .subscribe(ts);
  SubscriberFusion.assertFusion(ts, QueueFuseable.SYNC)
  .assertResult(1, 2, 3, 4, 5);
}

代码示例来源：origin: ReactiveX/RxJava

@Test
public void testBackpressure2() {
  TestSubscriber<Integer> ts = new TestSubscriber<Integer>();
  Flowable.range(1, 100000).takeLast(Flowable.bufferSize() * 4)
  .observeOn(Schedulers.newThread()).map(newSlowProcessor()).subscribe(ts);
  ts.awaitTerminalEvent();
  ts.assertNoErrors();
  assertEquals(Flowable.bufferSize() * 4, ts.valueCount());
}