allow changing the widgets background color

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

@@ -6,5 +6,6 @@ public class Constants {
     public static final float HIGH_ALPHA = 0.9f;
 
     public static final String PREFS = "prefs";
+    public static final String WIDGET_BG_COLOR = "widget_bg_color";
     public static final String WIDGET_TEXT_COLOR = "widget_text_color";
 }

app/src/main/java/calendar/simplemobiletools/com/MyWidgetConfigure.java

@@ -11,6 +11,7 @@ import android.os.Bundle;
 import android.support.v7.app.AppCompatActivity;
 import android.view.View;
 import android.widget.ImageView;
+import android.widget.SeekBar;
 import android.widget.TextView;
 
 import org.joda.time.DateTime;
@@ -27,7 +28,10 @@ public class MyWidgetConfigure extends AppCompatActivity implements Calendar {
     @Bind(R.id.left_arrow) ImageView leftArrow;
     @Bind(R.id.right_arrow) ImageView rightArrow;
     @Bind(R.id.table_month) TextView monthTV;
+    @Bind(R.id.config_bg_color) View bgColorPicker;
+    @Bind(R.id.config_bg_seekbar) SeekBar bgSeekBar;
     @Bind(R.id.config_text_color) View textColorPicker;
+    @Bind(R.id.config_calendar) View widgetBackground;
     @BindDimen(R.dimen.day_text_size) float dayTextSize;
     @BindDimen(R.dimen.today_text_size) float todayTextSize;
 
@@ -36,9 +40,13 @@ public class MyWidgetConfigure extends AppCompatActivity implements Calendar {
     private Resources res;
     private String packageName;
     private List<Day> days;
-    private static int textColorWithoutTransparency;
+    private int bgColorWithoutTransparency;
-    private static int textColor;
+    private int bgColor;
-    private static int weakTextColor;
+    private float bgAlpha;
+
+    private int textColorWithoutTransparency;
+    private int textColor;
+    private int weakTextColor;
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
@@ -67,6 +75,13 @@ public class MyWidgetConfigure extends AppCompatActivity implements Calendar {
         textColorWithoutTransparency = prefs.getInt(Constants.WIDGET_TEXT_COLOR, Color.WHITE);
         updateTextColors();
 
+        bgColor = prefs.getInt(Constants.WIDGET_BG_COLOR, Color.BLACK);
+        bgColorWithoutTransparency = Color.rgb(Color.red(bgColor), Color.green(bgColor), Color.blue(bgColor));
+        bgAlpha = Color.alpha(bgColor) / (float) 255;
+        bgSeekBar.setOnSeekBarChangeListener(bgSeekbarChangeListener);
+        bgSeekBar.setProgress((int) (bgAlpha * 100));
+        updateBgColor();
+
         calendar = new CalendarImpl(this);
         calendar.updateCalendar(new DateTime());
     }
@@ -88,9 +103,27 @@ public class MyWidgetConfigure extends AppCompatActivity implements Calendar {
 
     private void storeWidgetColors() {
         final SharedPreferences prefs = getSharedPreferences(Constants.PREFS, Context.MODE_PRIVATE);
+        prefs.edit().putInt(Constants.WIDGET_BG_COLOR, bgColor).apply();
         prefs.edit().putInt(Constants.WIDGET_TEXT_COLOR, textColorWithoutTransparency).apply();
     }
 
+    @OnClick(R.id.config_bg_color)
+    public void pickBackgroundColor() {
+        AmbilWarnaDialog dialog = new AmbilWarnaDialog(this, bgColorWithoutTransparency, new AmbilWarnaDialog.OnAmbilWarnaListener() {
+            @Override
+            public void onCancel(AmbilWarnaDialog dialog) {
+            }
+
+            @Override
+            public void onOk(AmbilWarnaDialog dialog, int color) {
+                bgColorWithoutTransparency = color;
+                updateBgColor();
+            }
+        });
+
+        dialog.show();
+    }
+
     @OnClick(R.id.config_text_color)
     public void pickTextColor() {
         AmbilWarnaDialog dialog = new AmbilWarnaDialog(this, textColor, new AmbilWarnaDialog.OnAmbilWarnaListener() {
@@ -126,6 +159,12 @@ public class MyWidgetConfigure extends AppCompatActivity implements Calendar {
         updateLabels();
     }
 
+    private void updateBgColor() {
+        bgColor = Helpers.adjustAlpha(bgColorWithoutTransparency, bgAlpha);
+        widgetBackground.setBackgroundColor(bgColor);
+        bgColorPicker.setBackgroundColor(bgColor);
+    }
+
     private void updateDays() {
         final int len = days.size();
         for (int i = 0; i < len; i++) {
@@ -148,6 +187,24 @@ public class MyWidgetConfigure extends AppCompatActivity implements Calendar {
         }
     }
 
+    private SeekBar.OnSeekBarChangeListener bgSeekbarChangeListener = new SeekBar.OnSeekBarChangeListener() {
+        @Override
+        public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
+            bgAlpha = (float) progress / (float) 100;
+            updateBgColor();
+        }
+
+        @Override
+        public void onStartTrackingTouch(SeekBar seekBar) {
+
+        }
+
+        @Override
+        public void onStopTrackingTouch(SeekBar seekBar) {
+
+        }
+    };
+
     @OnClick(R.id.left_arrow)
     public void leftArrowClicked() {
         calendar.getPrevMonth();

app/src/main/java/calendar/simplemobiletools/com/MyWidgetProvider.java

@@ -34,7 +34,6 @@ public class MyWidgetProvider extends AppWidgetProvider implements Calendar {
     private static Resources res;
     private static float dayTextSize;
     private static float todayTextSize;
-    private static int bgColor;
     private static int textColor;
     private static int weakTextColor;
 
@@ -46,13 +45,13 @@ public class MyWidgetProvider extends AppWidgetProvider implements Calendar {
     private void initVariables(Context context) {
         cxt = context;
         res = cxt.getResources();
-        bgColor = Color.BLACK;
 
         final SharedPreferences prefs = initPrefs(cxt);
         final int storedTextColor = prefs.getInt(Constants.WIDGET_TEXT_COLOR, Color.WHITE);
         textColor = Helpers.adjustAlpha(storedTextColor, Constants.HIGH_ALPHA);
         weakTextColor = Helpers.adjustAlpha(storedTextColor, Constants.LOW_ALPHA);
 
+
         dayTextSize = res.getDimension(R.dimen.day_text_size) / res.getDisplayMetrics().density;
         todayTextSize = res.getDimension(R.dimen.today_text_size) / res.getDisplayMetrics().density;
 
@@ -66,6 +65,9 @@ public class MyWidgetProvider extends AppWidgetProvider implements Calendar {
         updateLabelColor();
         updateTopViews();
 
+        final int bgColor = prefs.getInt(Constants.WIDGET_BG_COLOR, Color.BLACK);
+        remoteViews.setInt(R.id.calendar_holder, "setBackgroundColor", bgColor);
+
         calendar = new CalendarImpl(this);
         calendar.updateCalendar(new DateTime());
 

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

@@ -46,7 +46,6 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:layout_below="@+id/table_month"
-        android:layout_marginTop="@dimen/activity_margin"
         android:gravity="center"
         android:orientation="vertical">
 

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

@@ -11,28 +11,47 @@
         layout="@layout/activity_main"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:layout_above="@+id/config_bottom"
+        android:layout_above="@+id/config_bg_color"
         android:layout_marginBottom="@dimen/activity_margin"/>
 
+    <Button
+        android:id="@+id/config_bg_color"
+        android:layout_width="50dp"
+        android:layout_height="50dp"
+        android:layout_above="@+id/config_text_color"/>
+
     <RelativeLayout
-        android:id="@+id/config_bottom"
+        android:id="@+id/config_bg_seekbar_holder"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_alignBottom="@+id/config_bg_color"
+        android:layout_alignTop="@+id/config_bg_color"
+        android:layout_toRightOf="@+id/config_bg_color"
+        android:background="@android:color/white">
+
+        <SeekBar
+            android:id="@+id/config_bg_seekbar"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-        android:layout_alignParentBottom="true">
+            android:layout_centerVertical="true"
+            android:paddingLeft="@dimen/activity_margin"
+            android:paddingRight="@dimen/activity_margin"/>
+    </RelativeLayout>
 
     <Button
         android:id="@+id/config_text_color"
         android:layout_width="50dp"
-            android:layout_height="50dp"/>
+        android:layout_height="50dp"
+        android:layout_alignParentBottom="true"/>
 
     <Button
         android:id="@+id/config_save"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
+        android:layout_alignParentBottom="true"
         android:layout_alignParentRight="true"
         android:paddingLeft="@dimen/activity_margin"
         android:paddingRight="@dimen/activity_margin"
-            android:text="Save"
+        android:text="OK"
         android:textSize="18sp"/>
-    </RelativeLayout>
 </RelativeLayout>

app/src/main/res/xml/widget_info.xml

@@ -3,5 +3,6 @@
                     android:configure="calendar.simplemobiletools.com.MyWidgetConfigure"
                     android:initialLayout="@layout/activity_main"
                     android:minHeight="250dp"
-                    android:minWidth="250dp">
+                    android:minWidth="250dp"
+                    android:updatePeriodMillis="18000000">
 </appwidget-provider>