[Mono-bugs] [Bug 692215] New: "Remove Previous Version.." likely kills "Preference" feature
bugzilla_noreply at novell.com
bugzilla_noreply at novell.com
Fri May 6 05:23:37 EDT 2011
https://bugzilla.novell.com/show_bug.cgi?id=692215
https://bugzilla.novell.com/show_bug.cgi?id=692215#c0
Summary: "Remove Previous Version.." likely kills "Preference"
feature
Classification: Mono
Product: MonoDroid
Version: unspecified
Platform: Other
OS/Version: Windows 7
Status: NEW
Severity: Normal
Priority: P5 - None
Component: Tools
AssignedTo: mkestner at novell.com
ReportedBy: aenomoto at novell.com
QAContact: mono-bugs at lists.ximian.com
Found By: ---
Blocker: ---
We cannot keep preference values that are set via PreferenceManager in the
development cycles. This means, PreferenceManager is practically useless.
With the example repro below:
--------
using System;
using Android.App;
using Android.Content;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Android.OS;
using Android.Preferences;
using Android.Util;
namespace MonoAndroidApplication1
{
[Activity(Label = "MonoAndroidApplication1", MainLauncher = true, Icon =
"@drawable/icon")]
public class Activity1 : Activity
{
int count = 1;
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.Main);
var p = PreferenceManager.GetDefaultSharedPreferences (this);
Log.Debug ("TEST", p.GetString ("test", "ZAPZAPZAP"));
var ed = p.Edit ();
ed.PutString ("test", "testvalue");
ed.Commit ();
Log.Debug("TEST", p.GetString("test", "ZAPZAPZAP"));
}
}
}
--------
At initial run, we get:
D/TEST ( 8698): ZAPZAPZAP
D/TEST ( 8698): testvalue
shut down the app and restart it. It successfully prints:
D/TEST ( 8769): testvalue
D/TEST ( 8769): testvalue
So, preference is saved. But retry it after making some changes in the app:
D/TEST ( 8769): ZAPZAPZAP
D/TEST ( 8769): testvalue
It's again blank. Of course, this time it also saves the preference. So if you
run it again, then it successfully prints:
D/TEST ( 8769): testvalue
D/TEST ( 8769): testvalue
I guess "Removing Previous Version.." is bad. Everry time we make changes and
transmits the app to the emu or the device, it tries to remove previous version
that likely kills the preference values too. Is there any reason for the
explicit removal?
I tried the same on Eclipse and it just worked.
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