Change the Notifier to increase the font size for alerts.

Rearraged method definitions

Change-Id: Ic4668e2fc78009bf8758fa65f48eb860c316b6a7

appinventor/components/src/com/google/appinventor/components/runtime/Notifier.java

@@ -15,9 +15,13 @@ import com.google.appinventor.components.common.YaVersion;
 import android.app.Activity;
 import android.app.AlertDialog;
 import android.content.DialogInterface;
+import android.graphics.Color;
+import android.graphics.Typeface;
 import android.os.Handler;
 import android.util.Log;
+import android.view.Gravity;
 import android.widget.EditText;
+import android.widget.TextView;
 import android.widget.Toast;
 
 /**
@@ -200,11 +204,28 @@ public final class Notifier extends AndroidNonvisibleComponent implements Compon
   public void ShowAlert(final String notice) {
     handler.post(new Runnable() {
       public void run() {
-        Toast.makeText(activity, notice, Toast.LENGTH_LONG).show();
+        toastNow(notice);
       }
     });
   }
   
+  // show a toast using a TextView, which allows us to set the
+  // font size.  The default toast is too small.
+  private void toastNow (String message) {
+    Toast toast = Toast.makeText(activity, message, Toast.LENGTH_LONG);
+    toast.setGravity(Gravity.CENTER, toast.getXOffset() / 2, toast.getYOffset() / 2);
+    TextView textView = new TextView(activity);
+    textView.setBackgroundColor(Color.DKGRAY);
+    textView.setTextColor(Color.WHITE);
+    textView.setTextSize(30);
+    Typeface typeface = Typeface.create("serif", Typeface.BOLD);
+    textView.setTypeface(typeface);
+    textView.setPadding(10, 10, 10, 10);
+    textView.setText(message);
+    toast.setView(textView);
+    toast.show();
+  }
+
   /**
    * Log an error message.
    *