rounded corners and changed colors

app-android/res/drawable-hdpi/layout_bg.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#FFFFFF"/>
+    <stroke android:width="1dip" android:color="#FFFFFF" />
+    <corners android:radius="5dip"/>
+    <padding android:left="0dip" android:top="0dip" android:right="0dip" android:bottom="0dip" />
+</shape>

app-android/res/layout/activity_canvas.xml

@@ -12,6 +12,7 @@
         android:layout_height="fill_parent"
         android:layout_alignParentRight="true"
         android:layout_alignParentTop="true"
+        android:background="@drawable/layout_bg"
         android:orientation="vertical" >
 
     </LinearLayout>

app-android/src/at/bitfire/gfxtablet/CanvasActivity.java

@@ -4,6 +4,7 @@ import android.app.Activity;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
+import android.graphics.drawable.GradientDrawable;
 import android.net.Uri;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
@@ -21,6 +22,8 @@ public class CanvasActivity extends Activity implements OnSharedPreferenceChange
 	SharedPreferences settings;
 	NetworkClient netClient;
 	
+	LinearLayout layout;
+	
 	@Override
 	protected void onCreate(Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);
@@ -41,19 +44,23 @@ public class CanvasActivity extends Activity implements OnSharedPreferenceChange
 		}
 		
 		setContentView(R.layout.activity_canvas);
-		LinearLayout layout = (LinearLayout)findViewById(R.id.canvas_layout);
+		layout = (LinearLayout)findViewById(R.id.canvas_layout);
 		
 		new Thread(netClient = new NetworkClient(PreferenceManager.getDefaultSharedPreferences(this))).start();
-
+		
 		canvas = new CanvasView(this, netClient);
 		layout.addView(canvas);
+		
 		this.reconfigureLayout();
+		this.reconfigureColor();
 	}
 
 	@Override
 	public void onSharedPreferenceChanged(SharedPreferences pref, String key) {
 		if (key.equals(SettingsActivity.KEY_PREF_PADDING))
 			this.reconfigureLayout();
+		else if (key.equals(SettingsActivity.KEY_PREF_DARKCANVAS))
+			this.reconfigureColor();
 	}
 	
 	void reconfigureLayout()
@@ -64,6 +71,16 @@ public class CanvasActivity extends Activity implements OnSharedPreferenceChange
 		l.setPadding(p, p, p, p);
 	}
 	
+	void reconfigureColor()
+	{
+		GradientDrawable sd = (GradientDrawable) layout.getBackground().mutate();
+		if (settings.getBoolean(SettingsActivity.KEY_PREF_DARKCANVAS, false))
+			sd.setColor(0xFF263248);
+		else
+			sd.setColor(0xFF7E8AA2);	
+		sd.invalidateSelf();
+	}
+	
 	@Override
 	protected void onDestroy() {
 		netClient.getQueue().add(new NetEvent(NetEvent.Type.TYPE_DISCONNECT));

app-android/src/at/bitfire/gfxtablet/CanvasView.java

@@ -1,10 +1,17 @@
 package at.bitfire.gfxtablet;
 
+import org.xmlpull.v1.XmlPullParser;
+
 import android.annotation.SuppressLint;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
+import android.graphics.Color;
+import android.graphics.drawable.Drawable;
+import android.graphics.drawable.GradientDrawable;
+import android.graphics.drawable.LayerDrawable;
+import android.graphics.drawable.ShapeDrawable;
 import android.os.AsyncTask;
 import android.preference.PreferenceManager;
 import android.view.MotionEvent;
@@ -30,7 +37,7 @@ public class CanvasView extends View implements OnSharedPreferenceChangeListener
 		
 		reconfigureAcceptedInputDevices();
 		
-		this.reconfigureLayout();
+		//this.reconfigureLayout();
 		this.netClient = netClient;
 		new ConfigureNetworkingTask().execute();
 	}
@@ -41,17 +48,8 @@ public class CanvasView extends View implements OnSharedPreferenceChangeListener
 			new ConfigureNetworkingTask().execute();
 		else if (key.equals(SettingsActivity.KEY_PREF_STYLUS_ONLY))
 			this.reconfigureAcceptedInputDevices();
-		else if (key.equals(SettingsActivity.KEY_PREF_DARKCANVAS))
-			this.reconfigureLayout();
 	}
 	
-	void reconfigureLayout()
-	{
-		if (settings.getBoolean(SettingsActivity.KEY_PREF_DARKCANVAS, false))
-			setBackgroundColor(0xFF2E2E2E);
-		else
-			setBackgroundColor(0xFFD0D0D0);	
-	}
 		
 	void reconfigureAcceptedInputDevices() {
 		acceptStylusOnly = settings.getBoolean(SettingsActivity.KEY_PREF_STYLUS_ONLY, false);

app-android/src/at/bitfire/gfxtablet/SettingsActivity.java

@@ -32,7 +32,7 @@ public class SettingsActivity extends PreferenceActivity implements OnSharedPref
         PreferenceManager.getDefaultSharedPreferences(this)
         	.registerOnSharedPreferenceChangeListener(this);
     }
-    
+     
     @Override
     public void onBuildHeaders(List<Header> target) {
         loadHeadersFromResource(R.xml.preference_headers, target);