fix #107, hide the top status bar at bright display mode

app/src/main/AndroidManifest.xml

@@ -46,7 +46,9 @@
             </intent-filter>
         </activity>
 
-        <activity android:name=".activities.BrightDisplayActivity"/>
+        <activity
+            android:name=".activities.BrightDisplayActivity"
+            android:theme="@style/FullScreenTheme"/>
 
         <activity
             android:name=".activities.SettingsActivity"

app/src/main/kotlin/com/simplemobiletools/flashlight/activities/BrightDisplayActivity.kt

@@ -13,6 +13,12 @@ import kotlinx.android.synthetic.main.activity_bright_display.*
 
 class BrightDisplayActivity : SimpleActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
+        window.addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD or
+                WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED or
+                WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON or
+                WindowManager.LayoutParams.FLAG_FULLSCREEN)
+
+        useDynamicTheme = false
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_bright_display)
         supportActionBar?.hide()

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

@@ -2,4 +2,9 @@
 
     <style name="AppTheme" parent="AppTheme.Base"/>
 
+    <style name="FullScreenTheme" parent="AppTheme">
+        <item name="android:windowContentOverlay">@null</item>
+        <item name="android:windowTranslucentNavigation">true</item>
+    </style>
+
 </resources>