Well I have implemented by CustomWebView and GestureDetector:
CustomWebView.java:
public class CustomWebView extends WebView {
private GestureDetector gestureDetector;
public CustomWebView(Context context) {
super(context);
}
public CustomWebView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public CustomWebView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
@Override
protected void onScrollChanged(int l, int t, int oldl, int oldt) {
super.onScrollChanged(l, t, oldl, oldt);
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
return gestureDetector.onTouchEvent(ev) || super.onTouchEvent(ev);
}
public void setGestureDetector(GestureDetector gestureDetector) {
this.gestureDetector = gestureDetector;
}
}
web_fragment.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/transparent"
android:orientation="vertical">
<com.customview.CustomWebView
android:id="@+id/customWebView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:focusable="true" />
</LinearLayout>
CustomeGestureDetector clss for Gesture Detection (I have added in Fragment):
private class CustomeGestureDetector extends GestureDetector.SimpleOnGestureListener {
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
if(e1 == null || e2 == null) return false;
if(e1.getPointerCount() > 1 || e2.getPointerCount() > 1) return false;
else {
try {
if(e1.getY() - e2.getY() > 20 ) {
// Hide Actionbar
getSupportActionBar().hide();
customWebView.invalidate();
return false;
}
else if (e2.getY() - e1.getY() > 20 ) {
// Show Actionbar
getSupportActionBar().show();
customWebView.invalidate();
return false;
}
} catch (Exception e) {
customWebView.invalidate();
}
return false;
}
}
}
WebFragment.java:
private CustomWebView customWebView;
customWebView= (CustomWebView) view.findViewById(R.id.customWebView);
customWebView.setGestureDetector(new GestureDetector(new CustomeGestureDetector()));
It works fine for me, hope it would help you.
