Android Deflator內存不足錯誤

Question

我想在保存到文件之前先壓縮字節數組。 當我用平減指數來壓縮字節數組，我得到OutOfMemoryError：

ERROR/dalvikvm-heap(16065): Out of memory on a 921616-byte allocation. 

I check the code and it is the same as android developer。但我添加了DeflatorOutputStream以減少內存使用量。

我的代碼：

public static byte[] compress(byte[] data) throws IOException { 

    Deflater deflater = new Deflater(); 
    deflater.setInput(data); 
    deflater.finish(); 

    ByteArrayOutputStream outputStream = new ByteArrayOutputStream(data.length); 
    DeflaterOutputStream dos=new DeflaterOutputStream(outputStream); 

    byte[] buffer = new byte[1024]; 
    while (!deflater.finished()) { 
     int count=deflater.deflate(buffer); 
     // returns the generated code... index 
     dos.write(buffer, 0, count); 
    } 

    deflater.end(); 
    byte[] output = outputStream.toByteArray(); 

    dos.finish(); 
    dos.close(); 
    outputStream.close(); 

    return output; 
} 

我檢查這個錯誤發生在這條線：int count=deflater.deflate(buffer);

Answer 1

，我認爲有一個更簡單的解決方案：

public static byte[] compress(byte[] data) throws IOException { 
    ByteArrayOutputStream bout = new ByteArrayOutputStream(data.length); 
    try (DeflaterOutputStream out = new DeflaterOutputStream(bout)) { 
     out.write(data); 
    } 

    return bout.toByteArray(); 
}