Android Base64字符串转换成图片

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;
  }
 
 
 
  public String bitmaptoString(Bitmap bitmap){

//将Bitmap转换成字符串
  String string=null;
  ByteArrayOutputStream bStream=new ByteArrayOutputStream();
  bitmap.compress(CompressFormat.PNG,100,bStream);
  byte[]bytes=bStream.toByteArray();
  string=Base64.encodeToString(bytes,Base64.DEFAULT);
  return string;
  }