Android:打开失败:ENOENT(没有这样的文件或目录)错误
问题描述:
我正在关注此tutorial拍照,保存,缩放和在Android中使用它。但是,当我尝试打开/检索保存的图像时,出现Android: open failed: ENOENT (No such file or directory)
错误。经过一番研究之后,我发现这篇文章假设这个问题伴随着包含名字中的数字的文件,比如我的名字带有当前的时间戳。我检查了图像保存在文件目录中,并进行了日志记录以确保用于检索它们的文件名与原始名称匹配。 下面是给出了错误我的代码的一部分:Android:打开失败:ENOENT(没有这样的文件或目录)错误
private void setPic(ImageView myImageView) {
// Get the dimensions of the View
int targetW = myImageView.getWidth();
int targetH = myImageView.getHeight();
// Get the dimensions of the bitmap
BitmapFactory.Options bmOptions = new BitmapFactory.Options();
bmOptions.inJustDecodeBounds = true;
BitmapFactory.decodeFile(mCurrentPhotoPath, bmOptions);
int photoW = bmOptions.outWidth;
int photoH = bmOptions.outHeight;
Log.v("IMG Size", "IMG Size= "+String.valueOf(photoW)+" X "+String.valueOf(photoH));
// Determine how much to scale down the image
int scaleFactor = Math.min(photoW/targetW, photoH/targetH);
// Decode the image file into a Bitmap sized to fill the View
bmOptions.inJustDecodeBounds = false;
bmOptions.inSampleSize = scaleFactor;
bmOptions.inPurgeable = true;
Bitmap bitmap = BitmapFactory.decodeFile(mCurrentPhotoPath, bmOptions);
myImageView.setImageBitmap(bitmap);
}
这里是什么记录显示我:
E/BitmapFactory﹕ Unable to decode stream: java.io.FileNotFoundException: /file:/storage/sdcard0/Pictures/JPEG_20150728_105000_1351557687.jpg: open failed: ENOENT (No such file or directory)
,我试图打开一个名为图片:JPEG_20150728_105000_1351557687.jpg
答
我下载了你的代码,并试图在我的应用程序中使用它。发现前缀/file:
导致FileNotFoundException
。
将您的方法替换为以下方法。
private void setPic(ImageView myImageView) {
// Get the dimensions of the View
int targetW = myImageView.getWidth();
int targetH = myImageView.getHeight();
String path = mCurrentPhotoPath.replace("/file:","");
// Get the dimensions of the bitmap
BitmapFactory.Options bmOptions = new BitmapFactory.Options();
bmOptions.inJustDecodeBounds = true;
BitmapFactory.decodeFile(path, bmOptions);
int photoW = bmOptions.outWidth;
int photoH = bmOptions.outHeight;
Log.v("IMG Size", "IMG Size= " + String.valueOf(photoW) + " X " + String.valueOf(photoH));
// Determine how much to scale down the image
int scaleFactor = Math.min(photoW/targetW, photoH/targetH);
// Decode the image file into a Bitmap sized to fill the View
bmOptions.inJustDecodeBounds = false;
bmOptions.inSampleSize = scaleFactor;
bmOptions.inPurgeable = true;
Bitmap bitmap = BitmapFactory.decodeFile(path, bmOptions);
myImageView.setImageBitmap(bitmap);
}
这可能意味着,在您使用不存在的完整路径的目录:创建(使用.mkdirs()和_DO不forget_检查返回值) – fge
@DerGol ... LUM是一个完美有效的路径(当然,Windows文件系统除外)。当然,你可能想知道它实际上是否使用'file:/ ...'作为文件的URL,或者该方案是否完全在那里 – fge
@fge好的,我会更好地问它:你是否存储你的图片**在这里**:'/ file:/ storage/sdcard0/...',在Android上? –