I've seen some solutions here, but none of them works for me. I am using View.OnTouchListener class to detect click and drag events in my app code. But that beautiful ripple effect is now gone (perhaps because I am consuming the MotionEvent gestures before it gets to the View.OnClickListener. Notice the return true in MotionEvent.ACTION_DOWN block).
I cannot use View.OnClickListener to detect click events because my app uses multiple composite gestures (click, click-hold, click-hold-drag, etc). Can anyone please share some pointers on how to create ripple effect with Android touch gestures?
Here is the code snippet for my View.OnTouchListener implementation inside a BaseAdapter class:
v.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent ev) {
switch (ev.getAction() & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_DOWN:
if(mAppActionDownListener != null) {
mAppActionDownListener.onAppActionDown(appObjectList.get(position), v);
}
Log.d("COOK", "ACTION_DOWN: " + ev.getX() + ", " + ev.getY());
t1 = System.currentTimeMillis();
return true;
case MotionEvent.ACTION_UP:
Log.d("COOK", "ACTION_UP: " + ev.getX() + ", " + ev.getY());
t2 = System.currentTimeMillis();
if(Math.abs(t2-t1) <=300) {
//Toast.makeText(context, "Click event", Toast.LENGTH_SHORT).show();
if(mAppClickListener!=null) {
mAppClickListener.onAppClicked(appObjectList.get(position), v);
}
}
return false;
case MotionEvent.ACTION_MOVE:
Log.d("COOK", "ACTION_MOVE: " + ev.getX() + ", " + ev.getY());
ClipData.Item item = new ClipData.Item(appObjectList.get(position).getAppname()+"~"+appObjectList.get(position).getPackagename()+"~"+appObjectList.get(position).getAppicon());
ClipData dragData = new ClipData(
(CharSequence) v.getTag(),
new String[]{ClipDescription.MIMETYPE_TEXT_PLAIN},
item);
v.findViewById(R.id.appicondrawable).startDrag(dragData, // the data to be dragged
new View.DragShadowBuilder(v.findViewById(R.id.appicondrawable)), // the drag shadow builder
null, // no need to use local data
0 // flags (not currently used, set to 0)
);
if(mAppDragListener!=null) {
mAppDragListener.onAppDragged(appObjectList.get(position), v);
}
return true;
default:
return false;
}
}
});
Any help would be greatly appreciated!
Update 1:
Just to clarify, setting up background/foreground/clickable attributes in the parent custom layout has no effect for reasons mentioned above. I have already tried those solutions.
Update 2:
Adding the adapter item layout code.:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/applayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:background="?android:attr/selectableItemBackground"
android:focusable="true"
android:clickable="true"
android:padding="5sp">
<ImageView
android:id="@+id/appicondrawable"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:adjustViewBounds="true"
android:maxWidth="40dp"
android:maxHeight="40dp"
android:scaleType="fitCenter"
android:layout_marginStart="3dp"
android:src="@drawable/ic_launcher_background" />
<TextView
android:id="@+id/appname"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fontFamily="sans-serif-light"
android:gravity="center"
android:maxLines="1"
android:text="app name"
android:textAlignment="center"
android:textSize="10sp"
android:textColor="#000000" />
</LinearLayout>