Hide brush size bar by default, added possibility to show it through settings (saves in prefs)

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

@@ -31,6 +31,14 @@ public class Config {
         mPrefs.edit().putBoolean(Constants.IS_DARK_THEME, isDarkTheme).apply();
     }
 
+    public boolean getIsStrokeWidthBarEnabled() {
+        return mPrefs.getBoolean(Constants.IS_STROKE_WIDTH_BAR_ENABLED, false);
+    }
+
+    public void setIsStrokeWidthBarEnabled(boolean isStrokeWidthBarEnabled) {
+        mPrefs.edit().putBoolean(Constants.IS_STROKE_WIDTH_BAR_ENABLED, isStrokeWidthBarEnabled).apply();
+    }
+
     public int getBrushColor() {
         return mPrefs.getInt(Constants.BRUSH_COLOR_KEY, Color.BLACK);
     }

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

@@ -8,4 +8,5 @@ public class Constants {
     public static final String BACKGROUND_COLOR_KEY = "background_color";
     public static final String IS_FIRST_RUN = "is_first_run";
     public static final String IS_DARK_THEME = "is_dark_theme";
+    public static final String IS_STROKE_WIDTH_BAR_ENABLED = "is_stroke_width_bar_enabled";
 }

app/src/main/java/com/simplemobiletools/draw/MyCanvas.java

@@ -26,6 +26,7 @@ public class MyCanvas extends View {
     private float mStartX;
     private float mStartY;
     private boolean mIsSaving = false;
+    private boolean mIsStrokeWidthBarEnabled = false;
 
     public MyCanvas(Context context, AttributeSet attrs) {
         super(context, attrs);
@@ -65,11 +66,20 @@ public class MyCanvas extends View {
 
     public void setColor(int newColor) {
         mPaintOptions.color = newColor;
+        if(mIsStrokeWidthBarEnabled) {
             invalidate();
         }
+    }
 
     public void setStrokeWidth(float newStrokeWidth){
         mPaintOptions.strokeWidth = newStrokeWidth;
+        if(mIsStrokeWidthBarEnabled) {
+            invalidate();
+        }
+    }
+
+    public void setIsStrokeWidthBarEnabled(boolean isStrokeWidthBarEnabled) {
+        mIsStrokeWidthBarEnabled = isStrokeWidthBarEnabled;
         invalidate();
     }
 
@@ -95,7 +105,7 @@ public class MyCanvas extends View {
         changePaint(mPaintOptions);
         canvas.drawPath(mPath, mPaint);
 
-        if(!mIsSaving) {
+        if(mIsStrokeWidthBarEnabled && !mIsSaving) {
             drawPreviewDot(canvas);
         }
     }
@@ -103,9 +113,9 @@ public class MyCanvas extends View {
     private void drawPreviewDot(Canvas canvas) {
         mPaint.setColor(Utils.shouldUseWhite(mPaintOptions.color)?Color.WHITE:Color.BLACK);
         mPaint.setStrokeWidth(100);
-        canvas.drawPoint(getWidth()/2, getHeight() - 100, mPaint);
+        canvas.drawPoint(getWidth()/2, getHeight() - 120, mPaint);
         changePaint(mPaintOptions);
-        canvas.drawPoint(getWidth()/2, getHeight() - 100, mPaint);
+        canvas.drawPoint(getWidth()/2, getHeight() - 120, mPaint);
     }
 
     private void changePaint(PaintOptions paintOptions) {

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

@@ -70,6 +70,14 @@ public class MainActivity extends SimpleActivity implements MyCanvas.PathsChange
         mStrokeWidthBar.setProgress((int) savedStrokeWidth);
     }
 
+    @Override
+    protected void onResume() {
+        super.onResume();
+        boolean isStrokeWidthBarEnabled = mConfig.getIsStrokeWidthBarEnabled();
+        mStrokeWidthBar.setVisibility(isStrokeWidthBarEnabled? View.VISIBLE:View.GONE);
+        mMyCanvas.setIsStrokeWidthBarEnabled(isStrokeWidthBarEnabled);
+    }
+
     @Override
     protected void onPause() {
         super.onPause();

app/src/main/java/com/simplemobiletools/draw/activities/SettingsActivity.java

@@ -13,6 +13,7 @@ import butterknife.OnClick;
 
 public class SettingsActivity extends SimpleActivity {
     @BindView(R.id.settings_dark_theme) SwitchCompat mDarkThemeSwitch;
+    @BindView(R.id.settings_brush_size) SwitchCompat mBrushSizeSwitch;
 
     private static Config mConfig;
 
@@ -23,11 +24,12 @@ public class SettingsActivity extends SimpleActivity {
         mConfig = Config.newInstance(getApplicationContext());
         ButterKnife.bind(this);
 
-        setupDarkTheme();
+        setupSwitches();
     }
 
-    private void setupDarkTheme() {
+    private void setupSwitches() {
         mDarkThemeSwitch.setChecked(mConfig.getIsDarkTheme());
+        mBrushSizeSwitch.setChecked(mConfig.getIsStrokeWidthBarEnabled());
     }
 
     @OnClick(R.id.settings_dark_theme_holder)
@@ -37,6 +39,12 @@ public class SettingsActivity extends SimpleActivity {
         restartActivity();
     }
 
+    @OnClick(R.id.settings_brush_size_holder)
+    public void handleBrushSize() {
+        mBrushSizeSwitch.setChecked(!mBrushSizeSwitch.isChecked());
+        mConfig.setIsStrokeWidthBarEnabled(mBrushSizeSwitch.isChecked());
+    }
+
     private void restartActivity() {
         TaskStackBuilder.create(getApplicationContext()).addNextIntentWithParentStack(getIntent()).startActivities();
     }

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

@@ -34,6 +34,7 @@
         android:max="75"
         android:layout_alignParentBottom="true"
         android:layout_centerHorizontal="true"
-        android:layout_marginBottom="9dp" />
+        android:layout_marginBottom="9dp"
+        android:visibility="gone"/>
 
 </RelativeLayout>

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

@@ -36,5 +36,31 @@
                 android:clickable="false"/>
 
         </RelativeLayout>
+
+        <RelativeLayout
+            android:id="@+id/settings_brush_size_holder"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="@dimen/settings_padding"
+            android:background="?attr/selectableItemBackground"
+            android:padding="@dimen/activity_margin">
+
+            <TextView
+                android:id="@+id/settings_brush_size_label"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_centerVertical="true"
+                android:paddingLeft="@dimen/settings_padding"
+                android:text="@string/brush_size"/>
+
+            <android.support.v7.widget.SwitchCompat
+                android:id="@+id/settings_brush_size"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_alignParentRight="true"
+                android:background="@null"
+                android:clickable="false"/>
+
+        </RelativeLayout>
     </LinearLayout>
 </ScrollView>

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

@@ -16,6 +16,7 @@
     <!-- Settings -->
     <string name="settings">Settings</string>
     <string name="dark_theme">Dark theme</string>
+    <string name="brush_size">Show brush size tool</string>
     <string name="clear">Clear</string>
     <string name="change_background">Change background</string>