How to remove an app with active device admin enabled on Android?

I wrote an app with device admin enabled (DevicePolicyManager) and installed. But when I want to uninstall it, it returns failed with this message

WARN/PackageManager(69): Not removing package com.mypackage.test: has active device admi开发者_StackOverflown

How can I uninstall it, or uninstall it programmically? Thanks.

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Go to SETTINGS->Location and Security-> Device Administrator and deselect the admin which you want to uninstall.

Now uninstall the application. If it still says you need to deactivate the application before uninstalling, you may need to Force Stop the application before uninstalling.

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You could also create a new DevicePolicyManager and then use removeAdmin(adminReceiver) from an onClickListener of a button in your app

//set the onClickListener here
{
   ComponentName devAdminReceiver = new ComponentName(context, deviceAdminReceiver.class);
   DevicePolicyManager dpm = (DevicePolicyManager)context.getSystemService(Context.DEVICE_POLICY_SERVICE);
   dpm.removeActiveAdmin(devAdminReceiver);
}

And then you can uninstall

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On Samsung go to "Settings" -> "Lock screen and security" -> "Other security settings" -> "Phone administrators" and deselect the admin which you want to uninstall.

The "security" word was hidden on my display, so it was not obvious that I should click on "Lock screen".

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Redmi/xiaomi user

Go to "Settings" -> "Password & security" -> "Privacy" -> "Special app access" -> "Device admin apps" and select the account which you want to uninstall.

Or Simply

go to setting -> Then search for Device admin apps -> click and select the account which you want to uninstall.

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Enter vault password and inside vault right top corner options icon is there. Press on it. In that ->settings->vault admin rites to be unselected. Work done. U can uninstall app now.

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For Redmi users,

Settings -> Password & security -> Privacy -> Special app access -> Device admin apps

Click the deactivate the apps

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On a Samsung Galaxy S9 with Android 10 and One UI 2.0: Biometrics and security -> Other security settings -> Device admin apps.

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If you known the package name，with abd you can remove the device owner

adb shell dpm remove-active-admin packagename/.yourAdminReceiver

then

adb uninstall packagename