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我想以原始質量從互聯網上下載圖像。然後試圖BitmapFactory.decodeFile（）來獲取位圖如何使用BitmapFactory.decodeFile（）獲取位圖
執行此任務的我試過，但我收到此錯誤：
The method decodeFile(String) in the type BitmapFactory is not applicable for the arguments (FileOutputStream)
代碼：
public void saveImageToSDCard(Bitmap bitmap) {
String dirname = "/Amazing Wallpapers/";
File myDir = new File(Environment.getExternalStorageDirectory()
.getPath() + dirname);
myDir.mkdirs();
String str = currentUrl.substring(currentUrl.lastIndexOf('/') + 1,
currentUrl.length());
String fname = "Wallpaper-" + str + ".jpg";
File file = new File(myDir, fname);
if (file.exists())
file.delete();
try {
FileOutputStream out = new FileOutputStream(file);
bitmap = BitmapFactory.decodeFile(out);
out.flush();
out.close();
Toast.makeText(
_context,
_context.getString(R.string.toast_saved).replace("#",
"\"" + pref.getGalleryName() + "\""),
Toast.LENGTH_SHORT).show();
Log.d(TAG, "Wallpaper saved to:" + file.getAbsolutePath());
} catch (Exception e) {
e.printStackTrace();
Toast.makeText(_context,
_context.getString(R.string.toast_saved_failed),
Toast.LENGTH_SHORT).show();
}
}