CODEWITHSUNDEEP
androidsqlite
Neo
Neo

Reputation: 433

How to disable the Clear Data button in Application info of Manage application

I am working on android 2.2, In a Application tab of android manifest provide the option of "Allow clear data" to set true or false. But after setting it to False, my application can't disable the button of Clear data in application info of Manage application. I am facing this problem when application contains database in Data/Data/packge-name/databases/.

I have to protect my application database from user.

Upvotes: 43

Views: 28352

Answers (4)

Nauman Khaliq
Nauman Khaliq

Reputation: 1049

Just a trick.

<application
    android:manageSpaceActivity="{packageName}.ManageSpaceActivity"
>

In this scenario Android OS will show a Manage Space button in place of clear data.

Upon clicking it will open ManageSpaceActivity.

But

    <application
        android:manageSpaceActivity=".AnyActivity"
    >

If you do this. It will disable the Clear data button.

Trick is to write the Activity name without the full package name.

Upvotes: 3

Reed
Reed

Reputation: 14984

Add android:manageSpaceActivity=".ActivityOfMyChoice" to the application tag of your Manifest like:

    <application android:label="MyApp" android:icon="@drawable/icon" 
                 android:manageSpaceActivity=".ActivityOfMyChoice">

Then instead of "Clear Data", there is a button for "Manage Space" which launches ActivityOfMyChoice

As far as I have been able to tell, this works 100% of the time.

Upvotes: 138

RivieraKid
RivieraKid

Reputation: 5961

There is no way to prevent the user from clearing your app data. The manifest option you mention is intended for system apps only and you, as a developer, have no way to install system apps.

Please see this discussion for details - particularly this response from Diane Hackborn (Android framework engineer)

Upvotes: 3

user529543
user529543

Reputation:

AndroidManifest.xml

<application
    android:manageSpaceActivity="[packageName].ManageSpaceActivity"
    ...
    ...
>


  <activity
    android:name="[packageName].ManageSpaceActivity"
    android:screenOrientation="portrait" />

it will call my activity, but:

public class ManageSpaceActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        finish();

    }// onCreate
}

and the Activity is dead at creation, I love tricks :)

Now you can press the "Manage space" as much as you want! :)) - if you need you can do custom data / cache delete at ManageSpaceActivity, but you can keep your data, which do you want.

Up votes on Jakar answer too pls!

Upvotes: 50

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