I am developing an android application that copies a database file from /data/data/com.example/database.db
But it give me an access denied file
EACCES permission denied
Could anybody help me how to permit the access?
If you are copying you probably need the android.permission.WRITE_EXTERNAL_STORAGE permission in your manifest.
Add this to your manifest:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
(see https://developer.android.com/guide/topics/manifest/uses-permission-element.html for how to use the uses-permission tag in the manifest)
Add it and let us know if you still get the error.
Related
I need to write and read a file on ios and android internal storage and iam not sure which permissions i have to set in the podfile/info.plist?
Thank you!
For Android you need to update AndroidManifest.xml file and add :
<manifest>
...
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<application>
...
And for IOS there is no permission required. For more info to write file to secondary storage look at Apple Documentation.
I removed the WRITE_EXTERNAL_STORAGE and READ_EXTERNAL_STORAGE permissions from the project's AndroidMainfest.xml and AssemblyInfo.cs files.
I uploaded the .apk to Play Store and in the Bundle permissions the Write & Read permissions were showing up.
Then I analyzed the .apk using Analyze APK feature in Android Studio, and in that, AndroidMainfest.xml has WRITE_EXTERNAL_STORAGE and READ_EXTERNAL_STORAGE.
Though, I ask for CrossPermissions.Current.CheckPermissionStatusAsync(Permission.Storage) on run time, but when I removed it and Analyzed the APK, still it includes WRITE_EXTERNAL_STORAGE and READ_EXTERNAL_STORAGE permissions in Manifest file.
I then add the android:requiredFeature="false" flag to Write & Read permissions like this:
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" android:requiredFeature="false" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" android:requiredFeature="false" />
And when I Analyzed the APK again, Write & Read permissions are there with android:requiredFeature="false". But on Play Store, in the Bundle permissions they are there as before.
I don't know why these permissions are ending up there?
#Sergey Comment: They can be merged from the dependent library. You can check if any library you are using have those permissions in their Manifest file.
I looked into it and found this article How Libraries can silently add permissions to your Android App and the Fix. It Worked.
But I'm using camera, and I was storing these pictures in the Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData). Which requires WRITE_EXTERNAL_STORAGE and READ_EXTERNAL_STORAGE permissions.
So, I replace the path with FileSystem.CacheDirectory and it worked (Intenral Storage doesn't requires Read and Write Permissions in Manifest file).
TinyXML-1 can't open file. File exist on that path, but xmlDoc.ErrorDesc() writes Failed to open file. Can tinyXML1 open files on android or I must use Tinyxml2?
What is the exact error on your logcat?
It can be just that you didn't put the required permission:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
In your AndroidManifest.xml
I'm using synthesis To file to write in external storage .but i found exception on file not found error.i'm unable to read file from the sdcard. How to store in external device?
Please declare this permission in your manifest:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
I got exception in android manifest file.
I have added following permissions:
1. uses-permission android:name="android.permission.CALL_PRIVILEGED" />
2. uses-permission android:name="android.permission.MODIFY_PHONE_STATE" />
I got
"Permission is only granted to system apps" error. How to fix it. Before it was working fine.
you can't fix it. As mentioned:
"Permission is only granted to system apps"
This mean, no ordinary app can use the permissions. At least, not without rooting the device.