APK图片抓取识别及轮播流地址抓取, 分离service和界面，避免程序在后台被杀

#BYLSERVER-1438

app/build.gradle

@@ -13,7 +13,7 @@ android {
         minSdkVersion 15
         targetSdkVersion 22
         versionCode 20
-        versionName "1.5.0"
+        versionName "1.5.4"
     }
 
     signingConfigs {

app/src/main/java/com/duolebo/blyrobot/MainActivity.kt

@@ -76,12 +76,13 @@ class MainActivity : AppCompatActivity(), IAppBaseCallback {
 
         startRobotService()
 
+        startBtn.isEnabled = !TaskManager.instance.isRunning
         startBtn.setOnClickListener{
             start()
         }
         startBtn.requestFocus()
 
-        stopBtn.isEnabled = false
+        stopBtn.isEnabled = TaskManager.instance.isRunning
         stopBtn.setOnClickListener{
             stop()
         }