I'm using a custom grid adapter that creates image buttons and displays them on an activity, using the method SetImageResource() to set the src image of the buttons.
However, when clicked, these buttons do not have the desired button click/ripple effect. After looking around, I found a couple of solutions for that, utilising a TypedValue with SetBackgroundResource(), or utilising a TypedArray with SetBackgroundDrawable(). Without the image resource, either of these methods work, but upon adding the image resource, the selectableItemBackground effect disappears.
The code is as following:
ImageButton button; if (convertView == null) { LayoutInflater inflater = (LayoutInflater)context.GetSystemService(Context.LayoutInflaterService); // Grid buttons convertView = inflater.Inflate(Resource.Layout.sublayout_Menu_Button, null); button = convertView.FindViewById<ImageButton>(Resource.Id.mainMenu_ImgBtn); button.SetMinimumHeight(Main_Menu.GRID_HEIGHT / numRows); TypedValue tv = new TypedValue(); context.Theme.ResolveAttribute(Resource.Attribute.selectableItemBackground, tv, true); button.SetBackgroundResource(tv.ResourceId); // This code is another method that works similarly to the above //int[] attrs = new int[] { Android.Resource.Attribute.SelectableItemBackground }; //TypedArray ta = context.ObtainStyledAttributes(attrs); //Drawable drawableFromTheme = ta.GetDrawable(0); //ta.Recycle(); //button.SetBackgroundDrawable(drawableFromTheme); button.SetImageResource(buttonImages[position]); switch (position) { case 0: button.Click += delegate { Intent intent = new Intent(context, typeof(Select_Hospital)); context.StartActivity(intent); }; break; case 1: button.Click += delegate { Intent intent = new Intent(context, typeof(My_Appointments)); context.StartActivity(intent); }; break; case 2: button.Click += delegate { Intent intent = new Intent(context, typeof(Treatment_Information)); context.StartActivity(intent); }; break; case 3: button.Click += delegate { Intent intent = new Intent(context, typeof(Search)); context.StartActivity(intent); }; break; } } How can I resolve this problem? Any help would be very much appreciated!
--EDIT--
MyImageButton code:
class MyImageButton : ImageButton, IOnTouchListener { private Context context; public MyImageButton(Context context, IAttributeSet attrs) : base(context, attrs) { this.context = context; this.SetOnTouchListener(this); } public bool OnTouch(View v, MotionEvent e) { if (e.Action == MotionEventActions.Down) { ImageView iv = (ImageView)v; iv.SetColorFilter(new Android.Graphics.Color(context.GetColor(Resource.Color._5_grey))); } else if (e.Action == MotionEventActions.Up) { ImageView iv = (ImageView)v; iv.ClearColorFilter(); } return true; } }; AXML:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <Dental_IT.Droid.Adapters.MyImageButton android:id="@+id/mainMenu_ImgBtn" android:layout_width="match_parent" android:layout_height="match_parent" android:scaleType="centerCrop" android:background="@null" /> </LinearLayout> 
