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Handling specific application actions after waking a sleep device

I store all application data in my db. I want to do different things when

  • The app opens for the first time after the device wakes up from sleep
  • The app opens for the 2nd or more time after waking up from sleep

How can i do this? eg,

  • The camera opens after waking up the device - for the first time - my app will ask for a password
  • the camera is open 2 times, I will not ask for a password
  • whatsapp opens after waking up the device - for the first time - my app will ask for a password
  • whatsapp opens 2nd time when i won't ask for password
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1 answer


Implement if-else

in Service

with BroadcastReceiver

, which will run every time the device is turned on, for example:

<receiver android:name="com.example.MyBroadcastReceiver">  
    <intent-filter>  
        <action android:name="android.intent.action.BOOT_COMPLETED" />  
    </intent-filter>  
</receiver>


And don't forget to add permission:

<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
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