Add gridColor option

cameraview/src/main/java/com/otaliastudios/cameraview/CameraView.java

@@ -20,6 +20,7 @@ import android.media.MediaActionSound;
 import android.os.Build;
 import android.os.Handler;
 import android.os.Looper;
+import android.support.annotation.ColorInt;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.util.AttributeSet;
@@ -102,6 +103,7 @@ public class CameraView extends FrameLayout implements LifecycleObserver {
         Facing facing = Facing.fromValue(a.getInteger(R.styleable.CameraView_cameraFacing, Facing.DEFAULT(context).value()));
         Flash flash = Flash.fromValue(a.getInteger(R.styleable.CameraView_cameraFlash, Flash.DEFAULT.value()));
         Grid grid = Grid.fromValue(a.getInteger(R.styleable.CameraView_cameraGrid, Grid.DEFAULT.value()));
+        int gridColor = a.getColor(R.styleable.CameraView_cameraGrid, GridLinesLayout.DEFAULT_COLOR);
         WhiteBalance whiteBalance = WhiteBalance.fromValue(a.getInteger(R.styleable.CameraView_cameraWhiteBalance, WhiteBalance.DEFAULT.value()));
         Mode mode = Mode.fromValue(a.getInteger(R.styleable.CameraView_cameraMode, Mode.DEFAULT.value()));
         Hdr hdr = Hdr.fromValue(a.getInteger(R.styleable.CameraView_cameraHdr, Hdr.DEFAULT.value()));
@@ -207,6 +209,7 @@ public class CameraView extends FrameLayout implements LifecycleObserver {
         setMode(mode);
         setWhiteBalance(whiteBalance);
         setGrid(grid);
+        setGridColor(gridColor);
         setHdr(hdr);
         setAudio(audio);
         setAudioBitRate(audioBitRate);
@@ -813,6 +816,17 @@ public class CameraView extends FrameLayout implements LifecycleObserver {
     }
 
 
+    /**
+     * Controls the color of the grid lines that will be drawn
+     * over the current layout.
+     *
+     * @param color a resolved color
+     */
+    public void setGridColor(@ColorInt int color) {
+        mGridLinesLayout.setGridColor(color);
+    }
+
+
     /**
      * Controls the grids to be drawn over the current layout.
      *
@@ -825,6 +839,7 @@ public class CameraView extends FrameLayout implements LifecycleObserver {
         mCameraController.setHdr(hdr);
     }
 
+
     /**
      * Controls the preview engine. Should only be called
      * if this CameraView was never added to any window

cameraview/src/main/res/values/attrs.xml

@@ -89,6 +89,8 @@
             <enum name="drawPhi" value="3" />
         </attr>
 
+        <attr name="cameraGridColor" format="color|reference"/>
+
         <attr name="cameraMode" format="enum">
             <enum name="picture" value="0" />
             <enum name="video" value="1" />

cameraview/src/main/views/com/otaliastudios/cameraview/GridLinesLayout.java

@@ -5,13 +5,13 @@ import android.graphics.Canvas;
 import android.graphics.Color;
 import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
+import android.support.annotation.ColorInt;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.util.AttributeSet;
 import android.util.TypedValue;
 import android.view.View;
 
-// TODO animate lines!
 class GridLinesLayout extends View {
 
     private Grid gridMode;
@@ -24,14 +24,16 @@ class GridLinesLayout extends View {
 
     private final static float GOLDEN_RATIO_INV = 0.61803398874989f;
 
+    public final static int DEFAULT_COLOR = Color.argb(160, 255, 255, 255);
+
     public GridLinesLayout(@NonNull Context context) {
         this(context, null);
     }
 
     public GridLinesLayout(@NonNull Context context, @Nullable AttributeSet attrs) {
         super(context, attrs);
-        horiz = new ColorDrawable(Color.WHITE); horiz.setAlpha(160);
-        vert = new ColorDrawable(Color.WHITE); vert.setAlpha(160);
+        horiz = new ColorDrawable(DEFAULT_COLOR);
+        vert = new ColorDrawable(DEFAULT_COLOR);
         width = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 0.9f, context.getResources().getDisplayMetrics());
     }
 
@@ -51,6 +53,12 @@ class GridLinesLayout extends View {
         postInvalidate();
     }
 
+    public void setGridColor(@ColorInt int gridColor) {
+        horiz = new ColorDrawable(gridColor);
+        vert = new ColorDrawable(gridColor);
+        postInvalidate();
+    }
+
     private int getLineCount() {
         switch (gridMode) {
             case OFF: return 0;