Android:部分机型Dialog无法全屏展示

原由：部分机型，会有padding值，强制去除padding值即可：

    override fun onActivityCreated(savedInstanceState: Bundle?) {
        super.onActivityCreated(savedInstanceState)
        dialog?.window?.decorView?.setPadding(0, 0, 0, 0) //消除边距
        dialog?.window?.setLayout(WindowManager.LayoutParams.MATCH_PARENT,WindowManager.LayoutParams.WRAP_CONTENT)
    }