public static void setBitmapToFile(String cachePath, String imageName, Bitmap bitmap) { File file = null; FileOutputStream fos = null; try { file = new File(cachePath, imageName); if (!file.exists()) { File file2 = new File(cachePath); file2.mkdirs(); } if (Utils.hasSDCard()) { fos = new FileOutputStream(file); } else { fos = context.openFileOutput(imageName, Context.MODE_PRIVATE); } bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos); fos.flush(); } catch (Exception e) { e.printStackTrace(); } finally { if (fos != null) { try { fos.close(); } catch (IOException e) { e.printStackTrace(); } } } }
/** 将下载好的图片存放到文件中 */ private void setBitmapToFile(String imageName, InputStream is) { File file = null; FileOutputStream fos = null; try { file = new File(cacheDirPath_, imageName); if (!file.exists()) { File file2 = new File(cacheDirPath_); file2.mkdirs(); } if (Utils.hasSDCard()) { fos = new FileOutputStream(file); } else { fos = context.openFileOutput(cacheDirName + "/" + imageName, Context.MODE_PRIVATE); } int len = -1; byte[] buffer = new byte[1024]; while ((len = is.read(buffer)) != -1) { fos.write(buffer, 0, len); fos.flush(); } } catch (Exception e) { e.printStackTrace(); } finally { if (fos != null) { try { fos.close(); } catch (IOException e) { e.printStackTrace(); } } if (is != null) { try { is.close(); } catch (IOException e) { e.printStackTrace(); } } Bitmap bitmap = decodeSampledBitmapFromFile(file.getAbsolutePath(), 100, 100); if (null != bitmap) { Bitmap compressBitmap = BitmapUtil.compressImage(bitmap); String cachePath = Utils.getCacheDir(context, "picture"); setBitmapToFile(cachePath, imageName, compressBitmap); } } }