1.系统提示增加消息集合，可以按顺序展示。

app/src/main/java/com/xhly/manageapp/ui/main/activity/MainActivity.kt

 import android.net.ConnectivityManager
 import android.os.Build
 import android.provider.Settings
+import android.util.TypedValue
 import android.view.MotionEvent
 import android.view.View
 import android.view.View.OnClickListener
     private var accountDialog:CustomDialog?=null
     private var quitAccountDialog:CustomDialog?=null
     private var changeCodeDialog:CustomDialog?=null
-
     private var tipsDialog:CustomDialog?=null
+    private var systemDialog:AlertDialog?=null
+
     //创建应用卸载集合，方便获得应用信息
     private val unInstallAppList= arrayListOf<AppInfo>()
     //标记是否可以点击啊
     //标记上次点击时间
     private var lastChangeTime=0L
 
+    private var sysMsgList= arrayListOf<SocketMsgBean>()
+
     override fun getBinding() = ActivityMainBinding.inflate(layoutInflater)
 
     @SuppressLint("CheckResult")
      * 系统级别的通知
      */
     private fun showSystemNoticeDialog(msg: String) {
-        val v=View.inflate(this,R.layout.layout_sys_notice_dialog,null)
-        val closeBtn = v.findViewById<Button>(R.id.dialog_close_btn)
-        val titleTv = v.findViewById<TextView>(R.id.dialog_title_tv)
-        val contentTv = v.findViewById<TextView>(R.id.dialog_content_tv)
         try {
             val msgBean = GsonUtils.parseJsonWithGson(
                 msg, SocketMsgBean().javaClass
             ) as SocketMsgBean
-            titleTv.text = msgBean.title
-            contentTv.text = msgBean.content
+            sysMsgList.add(msgBean)
         } catch (e: Exception) {
             LogShow("解析失败" + e.toString())
         }
-
-        val dialog =
-            AlertDialog.Builder(this).create()
-        dialog.setView(v)
-        dialog.setCancelable(false)
-        if (Build.VERSION.SDK_INT>=Build.VERSION_CODES.O){
-            dialog.window?.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT))
-            dialog.window?.setType(WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY)
+        if (systemDialog==null){
+            val v=View.inflate(this,R.layout.layout_sys_notice_dialog,null)
+            val closeBtn = v.findViewById<Button>(R.id.dialog_close_btn)
+            val titleTv = v.findViewById<TextView>(R.id.dialog_title_tv)
+            val contentTv = v.findViewById<TextView>(R.id.dialog_content_tv)
+            if (sysMsgList.size>0){
+                val msgBean = sysMsgList[0]
+                titleTv.text = msgBean.title
+                contentTv.text = msgBean.content
+            }
+            if (sysMsgList.size>1){
+                closeBtn.text = getString(R.string.nexttips)
+            }else{
+                closeBtn.text = getString(R.string.close)
+            }
+            closeBtn.setOnClickListener {
+                if (sysMsgList.size>0){
+                    sysMsgList.removeAt(0)
+                    if (sysMsgList.size>0){
+                        val msgBean = sysMsgList[0]
+                        titleTv.text = msgBean.title
+                        contentTv.text = msgBean.content
+                    }
+                    if (sysMsgList.size==1){
+                        closeBtn.text = getString(R.string.close)
+                    }
+                    if (sysMsgList.size==0){
+                        systemDialog?.dismiss()
+                    }
+                }else{
+                    systemDialog?.dismiss()
+                }
+            }
+            systemDialog =
+                AlertDialog.Builder(this).create()
+            systemDialog?.setView(v)
+            systemDialog?.setCancelable(false)
+            if (Build.VERSION.SDK_INT>=Build.VERSION_CODES.O){
+                systemDialog?.window?.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT))
+                systemDialog?.window?.setType(WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY)
+            }else{
+                systemDialog?.window?.setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT)
+            }
+            systemDialog?.show()
+            systemDialog?.window?.let { window ->
+                val attributes = window.attributes
+                 attributes.width=TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,446f,resources.displayMetrics).toInt()
+                 attributes.height=TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,412f,resources.displayMetrics).toInt()
+                 window.attributes=attributes
+            }
         }else{
-            dialog.window?.setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT)
-        }
-        dialog.show()
-        closeBtn.setOnClickListener {
-            dialog.dismiss()
+            val closeBtn =systemDialog?.findViewById<Button>(R.id.dialog_close_btn)
+            val titleTv = systemDialog?.findViewById<TextView>(R.id.dialog_title_tv)
+            val contentTv =systemDialog?.findViewById<TextView>(R.id.dialog_content_tv)
+            if (sysMsgList.size>0){
+                val msgBean = sysMsgList[0]
+                titleTv!!.text = msgBean.title
+                contentTv!!.text = msgBean.content
+            }
+            if (sysMsgList.size>1){
+                closeBtn!!.text = getString(R.string.nexttips)
+            }else{
+                closeBtn!!.text = getString(R.string.close)
+            }
+           if (systemDialog?.isShowing == false){
+              systemDialog?.show()
+           }
         }
     }
 

app/src/main/res/layout/layout_sys_notice_dialog.xml

             <androidx.appcompat.widget.LinearLayoutCompat
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"
+                android:layout_marginLeft="21dp"
+                android:layout_marginRight="21dp"
                 android:orientation="vertical">
 
                 <TextView
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginTop="10dp"
-                    android:gravity="center"
                     android:textColor="#253A70"
                     android:textSize="14sp" />
             </androidx.appcompat.widget.LinearLayoutCompat>

app/src/main/res/values/strings.xml

     <string name="passcode">密码</string>
     <string name="exit">退出</string>
     <string name="close">关闭</string>
+    <string name="nexttips">下一条</string>
     <string name="clear">清除缓存</string>
     <string name="speed">一键加速</string>
     <string name="rotation">自动旋转</string>