How can I use java.awt.Robot inside games?

Question

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.

Answer 1

顺便说一句...问题是awt软件包不是Android的一部分，因此您不能使用它。

Answer 2

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 :)