我创建了一个位图,现在我想将该位图保存到某个目录。任何人都可以告诉我这是如何完成的。由于Android将创建的位图保存到SD卡上的目录
FileInputStream in;
BufferedInputStream buf;
try {
in = new FileInputStream("/mnt/sdcard/dcim/Camera/2010-11-16_18-57-18_989.jpg");
buf = new BufferedInputStream(in);
Bitmap _bitmapPreScale = BitmapFactory.decodeStream(buf);
int oldWidth = _bitmapPreScale.getWidth();
int oldHeight = _bitmapPreScale.getHeight();
int newWidth = 2592;
int newHeight = 1936;
float scaleWidth = ((float) newWidth)/oldWidth;
float scaleHeight = ((float) newHeight)/oldHeight;
Matrix matrix = new Matrix();
// resize the bit map
matrix.postScale(scaleWidth, scaleHeight);
Bitmap _bitmapScaled = Bitmap.createBitmap(_bitmapPreScale, 0, 0, oldWidth, oldHeight, matrix, true);
(我要救_bitmapScaled到一个文件夹我的SD卡上)
`newWidth = 2592`没有把它抛出内存异常? – 2014-10-26 13:47:14
@MuhammadBabar它不会,如果他只是将其保存到磁盘,并不使用它在imageview – 2016-02-18 13:29:34