remember the last flashlight state

Author: tibbi

app/src/main/java/com/simplemobiletools/camera/Config.java

@@ -78,4 +78,12 @@ public int getLastUsedCamera() {
     public void setLastUsedCamera(int cameraId) {
         mPrefs.edit().putInt(Constants.LAST_USED_CAMERA, cameraId).apply();
     }
+
+    public boolean getLastFlashlightState() {
+        return mPrefs.getBoolean(Constants.LAST_FLASHLIGHT_STATE, false);
+    }
+
+    public void setLastFlashlightState(boolean enabled) {
+        mPrefs.edit().putBoolean(Constants.LAST_FLASHLIGHT_STATE, enabled).apply();
+    }
 }

app/src/main/java/com/simplemobiletools/camera/Constants.java

@@ -15,4 +15,5 @@ public class Constants {
     public static final String MAX_RESOLUTION = "max_resolution";
     public static final String MAX_VIDEO_RESOLUTION = "max_video_resolution";
     public static final String LAST_USED_CAMERA = "last_used_camera";
+    public static final String LAST_FLASHLIGHT_STATE = "last_flashlight_state";
 }

app/src/main/java/com/simplemobiletools/camera/activities/MainActivity.java

@@ -172,6 +172,7 @@ private void initializeCamera() {
         mIsInPhotoMode = true;
         mTimerHandler = new Handler();
         mFadeHandler = new Handler();
+        mIsFlashEnabled = mConfig.getLastFlashlightState();
         setupPreviewImage(true);
     }
 
@@ -270,11 +271,15 @@ private void checkFlash() {
     private void disableFlash() {
         mPreview.disableFlash();
         mToggleFlashBtn.setImageResource(R.mipmap.flash_off);
+        mIsFlashEnabled = false;
+        mConfig.setLastFlashlightState(mIsFlashEnabled);
     }
 
     private void enableFlash() {
         mPreview.enableFlash();
         mToggleFlashBtn.setImageResource(R.mipmap.flash_on);
+        mIsFlashEnabled = true;
+        mConfig.setLastFlashlightState(mIsFlashEnabled);
     }
 
     @OnClick(R.id.shutter)
@@ -547,6 +552,7 @@ private void resumeCameraItems() {
 
         if (mPreview.setCamera(mCurrCamera)) {
             hideNavigationBarIcons();
+            checkFlash();
 
             if (mSensorManager != null) {
                 final Sensor accelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);