Add app closing with double tap on back button about hash-checker-lite HOT 10 CLOSED

I adding in my code in app/src/main/java/components/dialogs/system/ AppSnackbar.java
is it correct

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`private long backpressedTime;
@OverRide
protected void onCreate(Bundle SavedInstanceState){
super.onCreate(SavedInstanceState);
setContentView(R.layout.activity_main);
}

    @override
    public void onBackpressed()   {
            if(backpressedTime + 2000 > System.currentTimeMillis()){
                 super.onBackpressed();
                 return;
            }else{
                    Tost.makeText(getBaseContent(),"Press back again to exit",Tost.LENGTH_SHORT).show();
            }
    } `

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hello i would like to work on this issue

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@yasin459 I'm assigned you to this issue.

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hello again .sorry but i have a problem in build, I get this error :
A problem occurred evaluating project ':app'.

java.lang.NullPointerException (no error message)
i googled but I can't understand the problem, do you have any idea?

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@fartem can you help me please?

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@yasin459 Of course. Can you tell me your answer?

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@fartem
i have'nt done anything yet, i forked and cloned repo then tried to build for the first time(before making any changes)
then I confronted this error:

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@yasin459 You need to add next lines to local.properties file in the root of the project:

RELEASE_KEYSTORE_PATH=''
RELEASE_KEYSTORE_PASSWORD=''
RELEASE_KEY_ALIAS=''
RELEASE_KEY_PASSWORD=''

When project building, Gradle read build config and configuration contains sign variables, than you should add to your Gradle settings (all variables is empty because they are using when you building release app version). But if you just run the app in debug flavor, this exception cannot be caused.

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Need some help? If you are no longer working with this feature, please assign it to me

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