How to make single instance of Activity with different data passed through Intents in Android?

I want to make an Activity which should be created only once and then it should be updated based on certain values. First I tried to pass data through Intent but since I have made that activity as singleTask it do not get the new Intent object and uses the previous one.

What can be the way of passing the data to开发者_StackOverflow中文版 an Activity that is singleTask and needs to be updated on certain values?

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If your activity is singleTask, you need to handle new intents in onNewIntent method

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What entity generates the new values? If it is a Service then your Activity can establish a communication channel, so the Service can notify the Activity with new data.

More info here.