I am having difficulty with C++ Builder 11.1 Android trying to write a file to the Shared Documents folder. It worked with C++ Builder 10.3.1 but it doesn't work in 11.1
I have the permissions set properly in the Project Options Dialog box: Dangerous - Read External Storage = true Dangerous - Write External Storage = true
In the OnFormCreate method, I put in the necessary run time permissions as follows:
String FPermREAD;
String FPermWRITE;
DynamicArray<String> permissions;
FPermREAD = JStringToString(TJManifest_permission::JavaClass->READ_EXTERNAL_STORAGE);
FPermWRITE = JStringToString(TJManifest_permission::JavaClass->WRITE_EXTERNAL_STORAGE);
permissions.Length = 2;
permissions[0] = FPermREAD;
permissions[1] = FPermWRITE;
PermissionsService()->RequestPermissions(permissions, LocationPermissionRequestResult);
In the routine to write the file...
AnsiString SharedPath;
AnsiString FileName;
FILE *OutStream;
SharedPath = System::Ioutils::TPath::GetSharedDocumentsPath();
// SharedPath = "/storage/emulated/0/Documents"
FileName = SharedPath +"/"+MyFileName;
OutStream = fopen(FileName.c_str(),"wb"); // This fails in 11.1 but not in 10.3.1
if(OutStream) {
// write the file here
fclose(OutStream);
}
My Android device is Android 10. Any ideas why this is happening and how to fix it?
将 requestLegacyExternalStorage="true" 添加到清单文件中的应用程序标记。
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