英文:
Unable to save file to an external storage directory in android
问题
I have looked at all of the questions related to saving a file in the external storage.
Links:
- https://stackoverflow.com/questions/8330276/write-a-file-in-external-storage-in-android
- https://stackoverflow.com/questions/7887078/android-saving-file-to-external-storage
I even copied the entire method for the same but still cannot get the same result. Here is the log I am getting for the same:
W/System.err: java.io.IOException: No such file or directory
W/System.err: at java.io.UnixFileSystem.createFileExclusively0(Native Method)
code:
public void saveImageBitmap(Bitmap image_bitmap, String image_name) {String root = Environment.getExternalStorageDirectory().toString();File myDir = new File(root, "/memories");if (!myDir.exists()) {myDir.mkdirs();}String fname = "Image-" + image_name + ".jpg";File file = new File(myDir, fname);Log.d(TAG, "File file: " + file);if (file.exists()) {file.delete();}try {file.createNewFile(); // if file already exists will do nothingFileOutputStream out = new FileOutputStream(file);image_bitmap.compress(Bitmap.CompressFormat.JPEG, 90, out);out.flush();out.close();} catch (Exception e) {e.printStackTrace();}MediaScannerConnection.scanFile(context, new String[]{file.toString()}, new String[]{file.getName()}, null);}
英文:
I have looked at all of the questions related to saving a file in the external storage.
Links:
- <https://stackoverflow.com/questions/8330276/write-a-file-in-external-storage-in-android>
- <https://stackoverflow.com/questions/7887078/android-saving-file-to-external-storage>
I even copied the entire method for the same but still cannot get the same result. Here is the log I am getting for the same:
W/System.err: java.io.IOException: No such file or directory
W/System.err: at java.io.UnixFileSystem.createFileExclusively0(Native Method)
code:
public void saveImageBitmap(Bitmap image_bitmap, String image_name) {String root = Environment.getExternalStorageDirectory().toString();File myDir = new File(root, "/memories");if (!myDir.exists()) {myDir.mkdirs();}String fname = "Image-" + image_name + ".jpg";File file = new File(myDir, fname);Log.d(TAG, "File file: " + file);if (file.exists()) {file.delete();}try {file.createNewFile(); // if file already exists will do nothingFileOutputStream out = new FileOutputStream(file);image_bitmap.compress(Bitmap.CompressFormat.JPEG, 90, out);out.flush();out.close();} catch (Exception e) {e.printStackTrace();}MediaScannerConnection.scanFile(context, new String[]{file.toString()}, new String[]{file.getName()}, null);}
答案1
得分: 2
自Android 10（Q）以来，存储数据到媒体文件夹发生了一些变化。最简单的方法是在清单文件的应用程序部分添加android:requestLegacyExternalStorage="true"，但这更像是一种权宜之计。
在这里搜索“在Android 10中存储图像”，你会找到适合你的正确方法。
英文:
there are a few changes with storing data to media folder since android 10 (Q).the easiest way is to add android:requestLegacyExternalStorage="true" in the manifest under application, but it is more like a work around.
search for "store image android 10" here and you find the right way for you.
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