1.将图片转成base64
private String BitMapToBase64(String imgPath) {
Bitmap bitmap = BitmapFactory.decodeFile(imgPath);
ByteArrayOutputStream os = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, os);
byte[] bytes = os.toByteArray();
byte[] encode = Base64.encode(bytes,Base64.DEFAULT);
String encodeStr = new String(encode);
return encodeStr;
}
2.将base64的图片编码转换成BitMap
public Bitmap Base64ToBitMap(String base64) {
byte[] decode = Base64.decode(base64, Base64.DEFAULT);
Bitmap bitmap = BitmapFactory.decodeByteArray(decode, 0, decode.length);
return bitmap;
}
3.图片保存
// string & str：图片名称
private void saveBitmap(Bitmap bitmap,String string) {
try {
String path = Environment.getExternalStorageDirectory().getPath()
+"/"+str+"_"+string+".jpg";
OutputStream stream = new FileOutputStream(path);
bitmap.compress(Bitmap.CompressFormat.JPEG, 90, stream);
stream.close();
//MyToast.getToast(this,"图片保存成功！");
} catch (IOException e) {
e.printStackTrace();
}
}
