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Comment by mschultheiss | Hacker News Reader

I guess this code is only used when sharing something from WhatsApp to Telegram. If you share a picture for example, it removes the "Sent from Whatsapp" advertisment message. Correct me if i am wrong...

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No. This is inside the handleIntent() method which is like a main entry-point inside that Activity. And the intent being handled here is the ACTION_SEND. In simple words, when a message is being sent:

    Intent.ACTION_SEND.equals(intent.getAction()))

And no, it isn't just removing "Sent from Whatsapp", it is setting the sendingText variable to null, which will result in:

1. The message not being delivered.

2. The exception block being fired where this toast message will be displayed to the user: "Unsupported content"

1. Thats wrong, the variable sendingText is generated of Intent.EXTRA_TEXT (see http://developer.android.com/training/sharing/send.html for details) so it is definitely for handling shared content.

2. error=true is set in the else if case, which can not be stepped into anymore after having checked if the text contains "WhatsApp"

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