Determine If Current View is a Specific Activity

I am wanting to set an intent on a logo in the titleBar of my application to go back to the main entry screen when clicked unless of course we are already at that screen. How do I go开发者_开发百科 about checking this in an if statement?

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Unless I don't understand you correctly, you should just be able to check the class:

if(getClass() == MainActivity.class){

}

Try that and see if it works.