add a setting for Focus before Capture

app/src/main/kotlin/com/simplemobiletools/camera/Config.kt

@@ -30,6 +30,10 @@ class Config(context: Context) : BaseConfig(context) {
         get() = prefs.getBoolean(SOUND, true)
         set(enabled) = prefs.edit().putBoolean(SOUND, enabled).apply()
 
+    var focusBeforeCapture: Boolean
+        get() = prefs.getBoolean(FOCUS_BEFORE_CAPTURE, true)
+        set(focus) = prefs.edit().putBoolean(FOCUS_BEFORE_CAPTURE, focus).apply()
+
     var lastUsedCamera: Int
         get() = prefs.getInt(LAST_USED_CAMERA, Camera.CameraInfo.CAMERA_FACING_BACK)
         set(cameraId) = prefs.edit().putInt(LAST_USED_CAMERA, cameraId).apply()

app/src/main/kotlin/com/simplemobiletools/camera/Constants.kt

@@ -8,6 +8,7 @@ val ORIENT_LANDSCAPE_RIGHT = 2
 val SAVE_PHOTOS = "save_photos"
 val SHOW_PREVIEW = "show_preview"
 val SOUND = "sound"
+val FOCUS_BEFORE_CAPTURE = "focus_before_capture"
 val LAST_USED_CAMERA = "last_used_camera"
 val FLASHLIGHT_STATE = "flashlight_state"
 val BACK_PHOTO_RESOLUTION_INDEX = "back_photo_resolution_index"

app/src/main/kotlin/com/simplemobiletools/camera/activities/SettingsActivity.kt

@@ -27,6 +27,7 @@ class SettingsActivity : SimpleActivity() {
         setupSavePhotosFolder()
         setupShowPreview()
         setupSound()
+        setupFocusBeforeCapture()
         updateTextColors(settings_holder)
     }
 
@@ -81,4 +82,12 @@ class SettingsActivity : SimpleActivity() {
             config.isSoundEnabled = settings_sound.isChecked
         }
     }
+
+    private fun setupFocusBeforeCapture() {
+        settings_focus_before_capture.isChecked = config.focusBeforeCapture
+        settings_focus_before_capture_holder.setOnClickListener {
+            settings_focus_before_capture.toggle()
+            config.focusBeforeCapture = settings_focus_before_capture.isChecked
+        }
+    }
 }

app/src/main/res/layout/activity_settings.xml

@@ -104,5 +104,25 @@
                 android:text="@string/shutter_sound"/>
 
         </RelativeLayout>
+
+        <RelativeLayout
+            android:id="@+id/settings_focus_before_capture_holder"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="@dimen/medium_margin"
+            android:background="?attr/selectableItemBackground"
+            android:padding="@dimen/activity_margin">
+
+            <com.simplemobiletools.commons.views.MySwitchCompat
+                android:id="@+id/settings_focus_before_capture"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:background="@null"
+                android:clickable="false"
+                android:paddingLeft="@dimen/medium_margin"
+                android:paddingStart="@dimen/medium_margin"
+                android:text="@string/focus_before_capture"/>
+
+        </RelativeLayout>
     </LinearLayout>
 </ScrollView>

app/src/main/res/values-de/strings.xml

@@ -24,6 +24,7 @@
     <string name="front_camera">Front camera resolutions</string>
     <string name="photo">Photo</string>
     <string name="video">Video</string>
+    <string name="focus_before_capture">Focus before capture</string>
 
     <!-- Strings displayed only on Google Playstore. Optional, but good to have -->
     <!-- Short description has to have less than 80 chars -->

app/src/main/res/values-es/strings.xml

@@ -24,6 +24,7 @@
     <string name="front_camera">Front camera resolutions</string>
     <string name="photo">Photo</string>
     <string name="video">Video</string>
+    <string name="focus_before_capture">Focus before capture</string>
 
     <!-- Strings displayed only on Google Playstore. Optional, but good to have -->
     <!-- Short description has to have less than 80 chars -->

app/src/main/res/values-fr/strings.xml

@@ -24,6 +24,7 @@
     <string name="front_camera">Front camera resolutions</string>
     <string name="photo">Photo</string>
     <string name="video">Video</string>
+    <string name="focus_before_capture">Focus before capture</string>
 
     <!-- Strings displayed only on Google Playstore. Optional, but good to have -->
     <!-- Short description has to have less than 80 chars -->

app/src/main/res/values-it/strings.xml

@@ -24,6 +24,7 @@
     <string name="front_camera">Front camera resolutions</string>
     <string name="photo">Photo</string>
     <string name="video">Video</string>
+    <string name="focus_before_capture">Focus before capture</string>
 
     <!-- Strings displayed only on Google Playstore. Optional, but good to have -->
     <!-- Short description has to have less than 80 chars -->

app/src/main/res/values-ja/strings.xml

@@ -24,6 +24,7 @@
     <string name="front_camera">Front camera resolutions</string>
     <string name="photo">Photo</string>
     <string name="video">Video</string>
+    <string name="focus_before_capture">Focus before capture</string>
 
     <!-- Strings displayed only on Google Playstore. Optional, but good to have -->
     <!-- Short description has to have less than 80 chars -->

app/src/main/res/values-lt/strings.xml

@@ -24,6 +24,7 @@
     <string name="front_camera">Front camera resolutions</string>
     <string name="photo">Photo</string>
     <string name="video">Video</string>
+    <string name="focus_before_capture">Focus before capture</string>
 
     <!-- Strings displayed only on Google Playstore. Optional, but good to have -->
     <!-- Short description has to have less than 80 chars -->

app/src/main/res/values-nl/strings.xml

@@ -25,6 +25,7 @@
     <string name="front_camera">Camera aan de voorkant resoluties</string>
     <string name="photo">Foto</string>
     <string name="video">Video</string>
+    <string name="focus_before_capture">Focus before capture</string>
 
     <!-- Strings displayed only on Google Playstore. Optional, but good to have -->
     <!-- Short description has to have less than 80 chars -->

app/src/main/res/values-pt-rBR/strings.xml

@@ -24,6 +24,7 @@
     <string name="front_camera">Resoluções da câmera frontal</string>
     <string name="photo">Foto</string>
     <string name="video">Vídeo</string>
+    <string name="focus_before_capture">Focus before capture</string>
 
     <!-- Strings displayed only on Google Playstore. Optional, but good to have -->
     <!-- Short description has to have less than 80 chars -->

app/src/main/res/values-pt/strings.xml

@@ -24,6 +24,7 @@
     <string name="front_camera">Resoluções da câmara frontal</string>
     <string name="photo">Foto</string>
     <string name="video">Vídeo</string>
+    <string name="focus_before_capture">Focus before capture</string>
 
     <!-- Strings displayed only on Google Playstore. Optional, but good to have -->
     <!-- Short description has to have less than 80 chars -->

app/src/main/res/values-ru/strings.xml

@@ -24,6 +24,7 @@
     <string name="front_camera">Разрешения фронтальной камеры</string>
     <string name="photo">Фото</string>
     <string name="video">Видео</string>
+    <string name="focus_before_capture">Focus before capture</string>
 
     <!-- Strings displayed only on Google Playstore. Optional, but good to have -->
     <!-- Short description has to have less than 80 chars -->

app/src/main/res/values-sv/strings.xml

@@ -24,6 +24,7 @@
     <string name="front_camera">Front camera resolutions</string>
     <string name="photo">Photo</string>
     <string name="video">Video</string>
+    <string name="focus_before_capture">Focus before capture</string>
 
     <!-- Strings displayed only on Google Playstore. Optional, but good to have -->
     <!-- Short description has to have less than 80 chars -->

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

@@ -24,6 +24,7 @@
     <string name="front_camera">Front camera resolutions</string>
     <string name="photo">Photo</string>
     <string name="video">Video</string>
+    <string name="focus_before_capture">Focus before capture</string>
 
     <!-- Strings displayed only on Google Playstore. Optional, but good to have -->
     <!-- Short description has to have less than 80 chars -->