How to Detect Invalid Pattern Lock Entry in Android -

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this question has answer here:

i want develop android app perform action when user enter invalid pattern lock or pin code while unlocking mobile. don't know it. body can guide me?

create deviceadminreceiver set handle action_password_failed events, receiver handle in onpasswordfailed(). can read more device admin apis at: http://developer.android.com/guide/topics/admin/device-admin.html


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