图片文件转为Bitmap对象
String filePath=”c:/01.jpg”;
Bitmap bitmap=BitmapFactory.decodeFile(filePath);
如果图片过大,可能导致Bitmap对象装不下图片
解决办法:
String filePath=”c:/01.jpg”;
Bitmap bitmap=BitmapFactory.decodeFile(filePath,getBitmapOption(2)); //将图片的长和宽缩小味原来的1/2
private Options getBitmapOption(int inSampleSize){
System.gc();
BitmapFactory.Options options = new BitmapFactory.Options();
options.inPurgeable = true;
options.inSampleSize = inSampleSize;
return options;
}
Bitmap对象保存味图片文件 public void saveBitmapFile(Bitmap bitmap){ File file=new File(“/mnt/sdcard/pic/01.jpg”);//将要保存图片的路径 try { BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file)); press(pressFormat.JPEG, 100, bos); bos.flush(); bos.close(); } catch (IOException e) { e.printStackTrace(); } }