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Editorial Team
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Asked: 2026-05-30T05:02:24+00:00

I am developing an Android application that controls the PC keyboard and mouse. I

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I am developing an Android application that controls the PC keyboard and mouse. I wanted to add a new feature (using your mobile as a game controller). I am using java.awt.Robot.
It works fine in controlling the keyboard and mouse. But when I used it with games, java.awt.Robot doesn’t press buttons. When I go outside the game, it works fine again.

For example:

if (senderPropertyOne.equalsIgnoreCase("l")) {
    robot.keyPress(KeyEvent.VK_LEFT);
    robot.keyRelease(KeyEvent.VK_LEFT);
} else if (senderPropertyOne.equalsIgnoreCase("r")) {
    robot.keyPress(KeyEvent.VK_RIGHT);
    robot.keyRelease(KeyEvent.VK_RIGHT);
} else if (senderPropertyOne.equalsIgnoreCase("u")) {
    robot.keyPress(KeyEvent.VK_UP));        
    robot.keyRelease(KeyEvent.VK_UP);
} else if (senderPropertyOne.equalsIgnoreCase("d")) {
   robot.keyPress(KeyEvent.VK_DOWN);
   robot.keyRelease(KeyEvent.VK_DOWN);

This works fine in Flash games on the internet, but when I launch a normal game on my PC (like pro evolution soccer), it doesn’t work.

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1 Answer

  1. Editorial Team

    Thank you all for not assisting me. I managed to fix the issue, published Android app with 100000 downloads 🙂

    I was developing an android app that let Android phone control PC and use Android phone as a game controller for PC. I was using TCP and faced thae issue that I cant control games.

    When I used UDP instead, the issue fixed. I dont know TCP was the root cause or not but my issue fixed now and my app published on Android market 🙂

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