请教大牛，为什么object－c里写的uibutton和和文本输入框只有最左边一点点区域能响应点击事件？

本人ios新人，急
大致代码如下：
//登录按钮
CSpriteButton* logonBtn = [CSpriteButton spriteButtonWithHDFile2:@"load_bt_logono-hd.png" HDFloat:P_DISPLAY];
logonBtn.layer.anchorPoint=ccpZero;
    logonBtn.tag = FLTAG_LogonBtn;
    logonBtn.center=ccp(280,155);
[logonBtn addTarget:self action:@selector(ButtonEventWithLogon:) forControlEvents:UIControlEventTouchUpInside];
[self addSubview:logonBtn];
    
    

    //注册按钮
CSpriteButton* registerBtn = [CSpriteButton spriteButtonWithHDFile2:@"load_bt_register-hd.png" HDFloat:P_DISPLAY];
    registerBtn.layer.anchorPoint=ccpZero;
registerBtn.tag = FLTAG_RegisterBtn;
    registerBtn.center=ccp(280,200);
[registerBtn addTarget:self action:@selector(ButtonEventWithRegister:) forControlEvents:UIControlEventTouchUpInside];
[self addSubview:registerBtn];
    
    //设置帐号输入
    CGRect rect=accountsRect.frame;    
    //文本输入框
m_pAccountsTex.frame=ccr(0, 0, rect.size.width-m_pListButton.frame.size.width-5, rect.size.height-5);
    m_pAccountsTex.center = ccp(300,58);
    [self addSubview:m_pAccountsTex];
    
    rect=passwordRect.frame;
    //密码输入框
m_pPassWordTex.frame=ccr(0, 0, rect.size.width-5, rect.size.height-5);
    m_pPassWordTex.center= CGPointMake(300,108);
    [self addSubview:m_pPassWordTex];