SuccessFailToast
自定义的toast
使用方法（成功状态）
SuccessOrFailToast.getInstance(MainActivity.this).show("成功", SuccessOrFailToast.STATE_SUCCESS);失败状态
SuccessOrFailToast.getInstance(MainActivity.this).show("失败", SuccessOrFailToast.STATE_FAIL);
SuccessOrFailToast.getInstance(MainActivity.this).show("成功", SuccessOrFailToast.STATE_SUCCESS);SuccessOrFailToast.getInstance(MainActivity.this).show("失败", SuccessOrFailToast.STATE_FAIL);