转自：http://blog.sina.com.cn/s/blog_638686c601013xh0.html
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;
}
