android Base64字符串与Bitmap相互转换

/**

  * 将bitmap转换成base64字符串

  *

  * @param bitmap

  * @return base64 字符串

  */

  public String bitmaptoString(Bitmap bitmap, int bitmapQuality) {

  // 将Bitmap转换成字符串

  String string = null;

  ByteArrayOutputStream bStream = new ByteArrayOutputStream();

  bitmap.compress(CompressFormat.PNG, bitmapQuality, bStream);

  byte[] bytes = bStream.toByteArray();

  string = Base64.encodeToString(bytes, Base64.DEFAULT);

  return string;

  }

  /**

  * 将base64转换成bitmap图片

  *

  * @param string base64字符串

  * @return bitmap

  */

  public Bitmap stringtoBitmap(String string) {

  // 将字符串转换成Bitmap类型

  Bitmap bitmap = null;

  try {

  byte[] bitmapArray;

  bitmapArray = Base64.decode(string, Base64.DEFAULT);

  bitmap = BitmapFactory.decodeByteArray(bitmapArray, 0,

  bitmapArray.length);

  } catch (Exception e) {

  e.printStackTrace();

  }

  return bitmap;

  }

posted @ 2014-12-09 11:32  perfect亮  阅读(3780)  评论(0编辑  收藏  举报