cocos2dx中键盘的返回键，按了两次才能回到焦点，此处代码是为了解决back返回键需要两次的问题

这是触控的3.8 .1以下bug，目前就改源码：进入：cocos2d -x/cocos/platform/android/java/src/cocos2dx/lib/

Cocos2dxEditBox.java,目前3，8.1可以修改这个java源文件就可以修改到包括EditBox，TextFiled，UITextFiled的返回键按两次才能切回到原来的焦点上，

之前在onKeyDown上修改

@Override

public boolean onKeyDown(final int pKeyCode,final KeyEvent pKeyEvent) {

switch (pKeyCode) {

case KeyEvent.KEYCODE_BACK:

Cocos2dxActivity activity = (Cocos2dxActivity)this.getContext();

//To prevent program from going to background

activity.getGLSurfaceView().requestFocus();

return true;

default:

return super.onKeyDown(pKeyCode,pKeyEvent);

}

}

后来才将

@Override

publicbooleanonKeyPreIme(intkeyCode,KeyEvent event) {

returnsuper.onKeyPreIme(keyCode,event);

}

改为

@Override

public boolean onKeyPreIme(int keyCode,KeyEvent event) {

if(keyCode == KeyEvent.KEYCODE_BACK)

{//此处代码是为了解决back返回键需要两次的问题 oyzm

Cocos2dxActivity activity = (Cocos2dxActivity)this.getContext();

//To prevent program from going to background

activity.getGLSurfaceView().requestFocus();

System.out.println("onKeyPreIme:::" + keyCode);

return false;

}

return super.onKeyPreIme(keyCode,event);

}