Add more error handling

Fix showing title bar after switching apps.

app/src/main/java/com/github/brokenithm/activity/MainActivity.kt

@@ -555,6 +555,7 @@ class MainActivity : AppCompatActivity() {
             byteArrayOf(23, 'C'.toByte(), 'O'.toByte(), 'N'.toByte()).copyInto(buffer)
             selfAddress.toByteArray().copyInto(buffer, 4)
             serverPort.toString().toByteArray().copyInto(buffer, 4 + 15)
+            try {
                 val socket = DatagramSocket()
                 val packet = DatagramPacket(buffer, buffer.size)
                 socket.apply {
@@ -562,6 +563,9 @@ class MainActivity : AppCompatActivity() {
                     send(packet)
                     close()
                 }
+            } catch (e: Exception) {
+                e.printStackTrace()
+            }
         }
     }
 
@@ -572,11 +576,12 @@ class MainActivity : AppCompatActivity() {
             if (mTCPMode) {
                 try {
                     mTCPSocket.getOutputStream().write(buffer)
+                    mTCPSocket.close()
                 } catch (e: Exception) {
                     e.printStackTrace()
                 }
-                mTCPSocket.close()
             } else {
+                try {
                     val socket = DatagramSocket()
                     val packet = DatagramPacket(buffer, buffer.size)
                     socket.apply {
@@ -584,6 +589,9 @@ class MainActivity : AppCompatActivity() {
                         send(packet)
                         close()
                     }
+                } catch (e: Exception) {
+                    e.printStackTrace()
+                }
             }
         }
     }
@@ -599,6 +607,7 @@ class MainActivity : AppCompatActivity() {
                     e.printStackTrace()
                 }
             } else {
+                try {
                     val socket = DatagramSocket()
                     val packet = DatagramPacket(buffer, buffer.size)
                     socket.apply {
@@ -606,6 +615,9 @@ class MainActivity : AppCompatActivity() {
                         send(packet)
                         close()
                     }
+                } catch (e: Exception) {
+                    e.printStackTrace()
+                }
             }
         }
     }
@@ -619,6 +631,7 @@ class MainActivity : AppCompatActivity() {
         val buffer = ByteArray(12)
         byteArrayOf(11, 'P'.toByte(), 'I'.toByte(), 'N'.toByte()).copyInto(buffer)
         ByteBuffer.wrap(buffer, 4, 8).putLong(SystemClock.elapsedRealtimeNanos())
+        try {
             val socket = DatagramSocket()
             val packet = DatagramPacket(buffer, buffer.size)
             socket.apply {
@@ -626,6 +639,9 @@ class MainActivity : AppCompatActivity() {
                 send(packet)
                 close()
             }
+        } catch (e: Exception) {
+            e.printStackTrace()
+        }
     }
 
     private fun sendTCPPing() {

app/src/main/res/values-night/themes.xml

@@ -12,5 +12,7 @@
         <!-- Status bar color. -->
         <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
         <!-- Customize your theme here. -->
+        <item name="windowNoTitle">true</item>
+        <item name="windowActionBar">false</item>
     </style>
 </resources>

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

@@ -12,5 +12,7 @@
         <!-- Status bar color. -->
         <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
         <!-- Customize your theme here. -->
+        <item name="windowActionBar">false</item>
+        <item name="windowNoTitle">true</item>
     </style>
 </resources>