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Intent - if activity is running, bring it to front, else start a new one (from notification)

... app has notifications, which - obviously - without any flags, start a new activity every time so I get multiple same activities running on top of each other, which is just wrong. ...
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Android: Remove all the previous activities from the back stack

When i am clicking on Logout button in my Profile Activity i want to take user to Login page, where he needs to use new credentials. ...
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How to close activity and go back to previous activity in android

I have a main activity, that when I click on a button, starts a new activity, i used the following code to do so: 18 Answer...
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Android: Go back to previous activity

...ething simple on android app. How is it possible to go back to a previous activity. 23 Answers ...
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Passing data between a fragment and its container activity

How can I pass data between a fragment and its container activity? Is there something similar to passing data between activities through intents? ...
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Android: Clear the back stack

In Android I have some activities, let's say A, B, C. 38 Answers 38 ...
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Why fragments, and when to use fragments instead of activities?

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When to call activity context OR application context?

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View the Task's activity stack

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Call an activity method from a fragment

Trying to call a method in my activity from a fragment. I want the fragment to give the method data and to get the data when the method return. I want to achieve similar to call on a static method, but without the use of static because it create problems in the activity. ...