Android唤起微信扫一扫

fun scanQR() {
        try {
            val intent = context.packageManager.getLaunchIntentForPackage("com.tencent.mm")
            intent!!.putExtra("LauncherUI.From.Scaner.Shortcut", true)
            context.startActivity(intent)
        } catch (e: Exception) {
            e.printStackTrace()
        }
    }