Android Glide判断当前运行环境是否为主线程的工具方法，Kotlin

    private fun assertMainThread() {
        if (!isOnMainThread()) {
            throw IllegalArgumentException("You must call this method on the main thread");
        }
    }

    private fun isOnMainThread(): Boolean {
        return Looper.myLooper() == Looper.getMainLooper()
    }

Can‘t create handler inside thread Thread*** that has not called Looper.prepare()_can't create handler inside thread that has not ca-CSDN博客文章浏览阅读2k次。文章讲述了在Android中如何避免在非主线程中直接创建Handler引发的RuntimeException，强调了Looper.prepare()和Looper.loop()的重要性。作者提供了在普通Java线程中使用Handler发送和接收消息的示例。https://blog.csdn.net/zhangphil/article/details/134165048