使用libgdx,我怎么能拦截安卓BACK键,以便做一些preprocessing(如要求确认来自用户),在实际执行命令,退出游戏?
Using libgdx, how can I intercept the android BACK key in order to do some preprocessing (e.g. asking for confirmation from user), before actually performing the command to exit the game?
1。启用捕获返回键的。
在类实现了ApplicationListener
@Override
public void create() {
...
Gdx.input.setCatchBackKey(true);
...
}
2。处理醒目返回键的。
在实现 InputProcessor
@Override
public boolean keyDown(int keycode) {
...
if(keycode == Keys.BACK){
// Optional back button handling (e.g. ask for confirmation)
...
if (shouldReallyQuit)
Gdx.app.exit();
}
return false;
}