优化前台服务实现

app/src/main/java/com/xypower/mpapp/FloatingWindow.java

@@ -1,9 +1,14 @@
 package com.xypower.mpapp;
 
+import android.app.Notification;
+import android.app.NotificationChannel;
+import android.app.NotificationManager;
 import android.app.Service;
 import android.content.Context;
 import android.content.Intent;
 import android.graphics.Rect;
+import android.os.Build;
+import android.os.Handler;
 import android.os.IBinder;
 import android.text.Editable;
 import android.text.TextWatcher;
@@ -16,8 +21,13 @@ import android.widget.Button;
 import android.widget.EditText;
 import android.widget.TextView;
 
+import androidx.core.app.NotificationCompat;
+
 public class FloatingWindow extends Service {
 
+    private static final int NOTIFICATION_ID_FOREGROUND_SERVICE = 8466506;
+    private static final String FOREGROUND_CHANNEL_ID = "floatingwin_mpapp";
+    
     private Context mContext;
     private WindowManager mWindowManager;
     private View mView;
@@ -40,6 +50,29 @@ public class FloatingWindow extends Service {
         allAboutLayout(intent);
         moveView();
 
+        final Context context = getApplicationContext();
+        Handler handler = new Handler();
+        handler.postDelayed(new Runnable() {
+            @Override
+            public void run() {
+                try {
+                    createNotificationChannel();
+
+                    Notification notification = new NotificationCompat.Builder(context, FOREGROUND_CHANNEL_ID)
+                            .setContentTitle("FloatingWindow")
+                            .setContentText("App Running")
+                            // .setSmallIcon(R.drawable.ic_notification)
+                            .setPriority(NotificationCompat.PRIORITY_LOW)
+                            .build();
+
+                    // 启动前台服务
+                    startForeground(NOTIFICATION_ID_FOREGROUND_SERVICE, notification);
+                } catch (Exception ex) {
+                    ex.printStackTrace();
+                }
+            }
+        }, 4000);
+
         return super.onStartCommand(intent, flags, startId);
     }
 
@@ -58,6 +91,21 @@ public class FloatingWindow extends Service {
         super.onDestroy();
     }
 
+    private void createNotificationChannel() {
+        // >= Android 8.0
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            NotificationChannel channel = new NotificationChannel(
+                    FOREGROUND_CHANNEL_ID,
+                    "FloatingWindow",
+                    NotificationManager.IMPORTANCE_LOW);
+            
+            NotificationManager manager = getSystemService(NotificationManager.class);
+            if (manager != null) {
+                manager.createNotificationChannel(channel);
+            }
+        }
+    }
+
     WindowManager.LayoutParams mWindowsParams;
     private void moveView() {
         /*