some errors handled

Author: jspw

README.md

@@ -42,10 +42,15 @@ This is a android application based on Codeforces.
 
   ![Search Handle](assets/ss/search-handle.png)
 
+* Invalid handle exception handle
+  ![Invalid handle exception ](assets/ss/invalid.png)
+
 - Handle Details
 
   ![Handle Details](assets/ss/user_profile.png)
 
+  ![](assets/ss/profile.png)
+
 * Compare handles
 
   ![Compare handles](assets/ss/compare.png)

android/app/src/main/AndroidManifest.xml

@@ -7,16 +7,12 @@
 	FlutterApplication and put your custom class here.
 	-->
 	<uses-permission android:name="android.permission.INTERNET" />
-
 	<!-- things for alarm management -->
-
 	<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
 	<uses-permission android:name="android.permission.WAKE_LOCK" />
-	<uses-permission android:name="android.permission.SET_ALARM"/>
+	<uses-permission android:name="android.permission.SET_ALARM" />
 	<uses-permission android:name="android.permission.VIBRATE" />
-
 	<!-- things for alarm management -->
-
 	<application android:name="io.flutter.app.FlutterApplication" android:label="Codeforces" android:icon="@mipmap/ic_launcher">
 		<activity android:name=".MainActivity" android:launchMode="singleTop" android:theme="@style/LaunchTheme" android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode" android:hardwareAccelerated="true" android:windowSoftInputMode="adjustResize">
 			<!--
@@ -44,41 +40,22 @@
 		This is used by the Flutter tool to generate GeneratedPluginRegistrant.java
 		-->
 		<meta-data android:name="flutterEmbedding" android:value="2" />
-
 		<!-- things for alarm management -->
-
-		<service 
-			android:name="io.flutter.plugins.androidalarmmanager.AlarmService" 
-			android:permission="android.permission.BIND_JOB_SERVICE" 
-			android:exported="false" 
-		/>
-
-		<receiver 
-			android:name="io.flutter.plugins.androidalarmmanager.AlarmBroadcastReceiver" 
-			android:exported="false" 
-		/>
-
-		<receiver 
-			android:name="io.flutter.plugins.androidalarmmanager.RebootBroadcastReceiver" 
-			android:enabled="false">
-				<intent-filter>
-					<action android:name="android.intent.action.BOOT_COMPLETED">
-					</action>
-				</intent-filter>
+		<service android:name="io.flutter.plugins.androidalarmmanager.AlarmService" android:permission="android.permission.BIND_JOB_SERVICE" android:exported="false" />
+		<receiver android:name="io.flutter.plugins.androidalarmmanager.AlarmBroadcastReceiver" android:exported="false" />
+		<receiver android:name="io.flutter.plugins.androidalarmmanager.RebootBroadcastReceiver" android:enabled="false">
+			<intent-filter>
+				<action android:name="android.intent.action.BOOT_COMPLETED">
+				</action>
+			</intent-filter>
+		</receiver>
+		<receiver android:name="com.dexterous.flutterlocalnotifications.ScheduledNotificationBootReceiver">
+			<intent-filter>
+				<action android:name="android.intent.action.BOOT_COMPLETED">
+				</action>
+			</intent-filter>
 		</receiver>
-
-
-
-        <receiver android:name="com.dexterous.flutterlocalnotifications.ScheduledNotificationBootReceiver">
-            <intent-filter>
-                <action android:name="android.intent.action.BOOT_COMPLETED"></action>
-            </intent-filter>
-        </receiver>
-
-        <receiver android:name="com.dexterous.flutterlocalnotifications.ScheduledNotificationReceiver" />
-
+		<receiver android:name="com.dexterous.flutterlocalnotifications.ScheduledNotificationReceiver" />
 		<!-- things for alarm management -->
-
 	</application>
-
 </manifest>