可以把bitmap图片和base64字符串来互相转换~ 从此妈妈再也不用担心我处理bitmap啦~

/**

* 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();

press(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;

}