我可以通过使用“new”after\\u switch\\u theme挂钩激活我的主题来显示消息，方法如下：

function themeActivationFunction($oldname, $oldtheme=false) {
$msg = \'
    <div class="error">
        <p>The \' . get_option( \'current_theme\' ) . \' theme has been ACTIVATED.</p>
    </div>\';
    add_action( \'admin_notices\', $c = create_function( \'\', \'echo "\' . addcslashes( $msg, \'"\' ) . \'";\' ) );

}
add_action("after_switch_theme", "themeActivationFunction", 10 ,  2);

但它不能与swith\\u主题挂钩一起禁用我的主题。我认为，因为将主题切换到另一个默认的WordPress消息会覆盖我的消息，在主题中被禁用，重新加载屏幕会删除所有内容。

function themeDeactivationFunction($theme) {
// Lets let the admin know whats going on.
        $msg = \'
    <div class="error">
        <p>Your theme has been DEACTIVATED</p>
    </div>\';
    add_action( \'admin_notices\', $c = create_function( \'\', \'echo "\' . addcslashes( $msg, \'"\' ) . \'";\' ) );
}
add_action("switch_theme", "themeDeactivationFunction", 10 , 2);

我正在寻找一个“变通方法”，通知用户停用我的主题和设置例程。

add_action( \'switch_theme\', \'wpse_60972_theme_deactivate_message\' );
function wpse_60972_theme_deactivate_message()
{
    $msg = \'
    <div class="error">
        <p>Your theme has been DEACTIVATED</p>
    </div>\';

    add_action( \'admin_notices\', create_function( \'\', \'echo "\' . addcslashes( $msg, \'"\' ) . \'";\' ) );

    unset( $_GET[\'action\'] );
    require ABSPATH . \'wp-admin/themes.php\';
    exit;
}