如何使用libgdx获取Touch Event TouchUp

Question

Am trying to change the screen when removes his finger/ no longer touches the screen Have tried doing it this way

if (Gdx.input.isTouched(0)) {
camera.unproject(_touchPoint.set(Gdx.input.getX(), Gdx.input.getY(), 0));
//stuff...
}

Now When ever the User leaves his finger i want to change the Screen Have also tried to use this call

Gdx.input.setInputProcessor(processor);

But of no idea how to check/use this event in render method . Please help me out on this.

Answer 1

使您的类实现InputProcessor并调用Gdx.input.setInputProcessor(this);

Answer 2

You can detect touchUp events just overriding the proper method from a Screen subclass.-

@Override
public boolean touchUp(int x, int y, int pointer, int button) {         
    boolean res = super.touchUp(x, y, pointer, button);

    // Do your stuff here

    return res;
}

Answer 3

When you use

Gdx.input.setInputProcessor(processor);

you don't have to call any function in your render method. Libgdx will directly give you a call back in your processor about the various events. you just need to write the code to change the screen in touch up function of your processor (InputProcessor). use this link to get more clarification https://code.google.com/p/libgdx/wiki/InputEvent

Answer 4

布尔值isTouched = Gdx.input.isTouched（）;

Answer 5

只需使用Gdx.input.justTouched()而不是isTouched()