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  public
  static
  
  
  class
  ParcelFileDescriptor.AutoCloseInputStream
  
  
  
  
  
  
  
    extends FileInputStream
  
  
  
  
  
  
  
  
  
    
  An InputStream you can create on a ParcelFileDescriptor, which will
 take care of calling ParcelFileDescriptor.close() for you when the stream is closed.
Summary
| Public methods | 
|---|
  
  
  
    | 
        
        
        
        
        
        void | 
      close()
      Closes this file input stream and releases any system resources
 associated with the stream.
        
    
 | 
  
  
  
  
    | 
        
        
        
        
        
        int | 
      read()
      Reads a byte of data from this input stream.
        
    
 | 
  
  
  
  
    | 
        
        
        
        
        
        int | 
      read(byte[] b, int off, int len)
      Reads up to lenbytes of data from this input stream
 into an array of bytes. | 
  
  
  
  
    | 
        
        
        
        
        
        int | 
      read(byte[] b)
      Reads up to b.lengthbytes of data from this input
 stream into an array of bytes. | 
  
| Inherited methods | 
|---|
| 
    From class
      
        
          java.io.FileInputStream
        
      
      
  
  
  
    | 
        
        
        
        
        
        int | 
      available()
      Returns an estimate of the number of remaining bytes that can be read (or
 skipped over) from this input stream without blocking by the next
 invocation of a method for this input stream.
        
    
 |  
  
  
    | 
        
        
        
        
        
        void | 
      close()
      Closes this file input stream and releases any system resources
 associated with the stream.
        
    
 |  
  
  
    | 
        
        
        
        
        
        void | 
      finalize()
      Ensures that the closemethod of this file input stream is
 called when there are no more references to it. |  
  
  
    | 
        
        
        
        
        
        FileChannel | 
      getChannel()
      Returns the unique FileChannelobject associated with this file input stream. |  
  
  
    | 
        
        
        
        final
        
        FileDescriptor | 
      getFD()
      Returns the FileDescriptorobject  that represents the connection to
 the actual file in the file system being
 used by thisFileInputStream. |  
  
  
    | 
        
        
        
        
        
        int | 
      read()
      Reads a byte of data from this input stream.
        
    
 |  
  
  
    | 
        
        
        
        
        
        int | 
      read(byte[] b, int off, int len)
      Reads up to lenbytes of data from this input stream
 into an array of bytes. |  
  
  
    | 
        
        
        
        
        
        int | 
      read(byte[] b)
      Reads up to b.lengthbytes of data from this input
 stream into an array of bytes. |  
  
  
    | 
        
        
        
        
        
        long | 
      skip(long n)
      Skips over and discards nbytes of data from the
 input stream. |  | 
| 
    From class
      
        
          java.io.InputStream
        
      
      
  
  
  
    | 
        
        
        
        
        
        int | 
      available()
      Returns an estimate of the number of bytes that can be read (or skipped
 over) from this input stream without blocking, which may be 0, or 0 when
 end of stream is detected.
        
    
 |  
  
  
    | 
        
        
        
        
        
        void | 
      close()
      Closes this input stream and releases any system resources associated
 with the stream.
        
    
 |  
  
  
    | 
        
        
        
        
        
        void | 
      mark(int readlimit)
      Marks the current position in this input stream.
        
    
 |  
  
  
    | 
        
        
        
        
        
        boolean | 
      markSupported()
      Tests if this input stream supports the markandresetmethods. |  
  
  
    | 
        
        
        static
        
        
        InputStream | 
      nullInputStream()
      Returns a new InputStreamthat reads no bytes. |  
  
  
    | 
        
        
        
        
        
        int | 
      read(byte[] b)
      Reads some number of bytes from the input stream and stores them into
 the buffer array b. |  
  
  
    | 
        abstract
        
        
        
        
        int | 
      read()
      Reads the next byte of data from the input stream.
        
    
 |  
  
  
    | 
        
        
        
        
        
        int | 
      read(byte[] b, int off, int len)
      Reads up to lenbytes of data from the input stream into
 an array of bytes. |  
  
  
    | 
        
        
        
        
        
        byte[] | 
      readAllBytes()
      Reads all remaining bytes from the input stream.
        
    
 |  
  
  
    | 
        
        
        
        
        
        int | 
      readNBytes(byte[] b, int off, int len)
      Reads the requested number of bytes from the input stream into the given
 byte array.
        
    
 |  
  
  
    | 
        
        
        
        
        
        byte[] | 
      readNBytes(int len)
      Reads up to a specified number of bytes from the input stream.
        
    
 |  
  
  
    | 
        
        
        
        
        
        void | 
      reset()
      Repositions this stream to the position at the time the
 markmethod was last called on this input stream. |  
  
  
    | 
        
        
        
        
        
        long | 
      skip(long n)
      Skips over and discards nbytes of data from this input
 stream. |  
  
  
    | 
        
        
        
        
        
        void | 
      skipNBytes(long n)
      Skips over and discards exactly nbytes of data from this input
 stream. |  
  
  
    | 
        
        
        
        
        
        long | 
      transferTo(OutputStream out)
      Reads all bytes from this input stream and writes the bytes to the
 given output stream in the order that they are read.
        
    
 |  | 
| 
    From class
      
        
          java.lang.Object
        
      
      
  
  
  
    | 
        
        
        
        
        
        Object | 
      clone()
      Creates and returns a copy of this object.
        
    
 |  
  
  
    | 
        
        
        
        
        
        boolean | 
      equals(Object obj)
      Indicates whether some other object is "equal to" this one.
        
    
 |  
  
  
    | 
        
        
        
        
        
        void | 
      finalize()
      Called by the garbage collector on an object when garbage collection
 determines that there are no more references to the object.
        
    
 |  
  
  
    | 
        
        
        
        final
        
        Class<?> | 
      getClass()
      Returns the runtime class of this Object. |  
  
  
    | 
        
        
        
        
        
        int | 
      hashCode()
      Returns a hash code value for the object.
        
    
 |  
  
  
    | 
        
        
        
        final
        
        void | 
      notify()
      Wakes up a single thread that is waiting on this object's
 monitor.
        
    
 |  
  
  
    | 
        
        
        
        final
        
        void | 
      notifyAll()
      Wakes up all threads that are waiting on this object's monitor.
        
    
 |  
  
  
    | 
        
        
        
        
        
        String | 
      toString()
      Returns a string representation of the object.
        
    
 |  
  
  
    | 
        
        
        
        final
        
        void | 
      wait(long timeoutMillis, int nanos)
      Causes the current thread to wait until it is awakened, typically
 by being notified or interrupted, or until a
 certain amount of real time has elapsed.
        
    
 |  
  
  
    | 
        
        
        
        final
        
        void | 
      wait(long timeoutMillis)
      Causes the current thread to wait until it is awakened, typically
 by being notified or interrupted, or until a
 certain amount of real time has elapsed.
        
    
 |  
  
  
    | 
        
        
        
        final
        
        void | 
      wait()
      Causes the current thread to wait until it is awakened, typically
 by being notified or interrupted.
        
    
 |  | 
| 
    From interface
      
        
          java.io.Closeable
        
      
      
  
  
  
    | 
        abstract
        
        
        
        
        void | 
      close()
      Closes this stream and releases any system resources associated
 with it.
        
    
 |  | 
|  | 
Public constructors
Public methods
    close
    
public void close ()
    
    
    
  Closes this file input stream and releases any system resources
 associated with the stream.
 
 If this stream has an associated channel then the channel is closed
 as well.
      
  
 
    read
    
public int read ()
    
    
    
  Reads a byte of data from this input stream. This method blocks
 if no input is yet available.
    
      | Returns | 
|---|
      
        | int | the next byte of data, or -1if the end of the
             file is reached. | 
    
      
  
 
    read
    
public int read (byte[] b, 
                int off, 
                int len)
    
    
    
  Reads up to len bytes of data from this input stream
 into an array of bytes. If len is not zero, the method
 blocks until some input is available; otherwise, no
 bytes are read and 0 is returned.
    
    | Parameters | 
|---|
      
        | b | byte: the buffer into which the data is read. | 
      
        | off | int: the start offset in the destination arrayb | 
      
        | len | int: the maximum number of bytes read. | 
    
    
      | Returns | 
|---|
      
        | int | the total number of bytes read into the buffer, or -1if there is no more data because the end of
             the file has been reached. | 
    
      
  
 
    read
    
public int read (byte[] b)
    
    
    
  Reads up to b.length bytes of data from this input
 stream into an array of bytes. This method blocks until some input
 is available.
    
    | Parameters | 
|---|
      
        | b | byte: the buffer into which the data is read. | 
    
    
      | Returns | 
|---|
      
        | int | the total number of bytes read into the buffer, or -1if there is no more data because the end of
             the file has been reached. | 
    
      
  
 
 
 
  
  
    
  
 
  
    
      
      
    
    
      
    
    
  
       
    
    
      
    
  
  
  Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
  Last updated 2025-02-10 UTC.
  
  
  
    
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