Android编程实现将压缩数据库文件拷贝到安装目录的方法

本文实例讲述了android编程实现将压缩数据库文件拷贝到安装目录的方法。分享给大家供大家参考，具体如下：

public void copyzip2datadirectory(context context) throws ioexception {
  fileoutputstream outputstream = null;
  assetmanager assetmanager = context.getassets();
  inputstream inputstream = assetmanager.open("test.zip");
  zipinputstream zis = new zipinputstream(inputstream);
  zipentry entry = null;
  while ((entry = zis.getnextentry()) != null) {
   outputstream = context.openfileoutput(entry.getname(), context.mode_private);
   byte[] buffer = new byte[2 * 1024];
   int len = -1;
   while ((len = zis.read(buffer)) != -1) {
    outputstream.write(buffer, 0, len);
   }
   outputstream.close();
  }
  zis.close();
  inputstream.close();
}

希望本文所述对大家android程序设计有所帮助。