Android-builders-club/OsmAnd
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

Scroll Up/Down

Browse source
This commit is contained in:
androiddevkkotlin 2020-12-21 13:43:46 +02:00
parent 1985125472
commit 1db988d2b7
1 changed files with 25 additions and 11 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

36
OsmAnd/src/net/osmand/plus/wikipedia/WikipediaDialogFragment.java
View file

@ -28,6 +28,7 @@ import androidx.appcompat.widget.PopupMenu;
import androidx.appcompat.widget.Toolbar; import androidx.appcompat.widget.Toolbar;
import androidx.browser.customtabs.CustomTabsIntent; import androidx.browser.customtabs.CustomTabsIntent;
import androidx.core.content.ContextCompat; import androidx.core.content.ContextCompat;
import androidx.core.view.MotionEventCompat;
import androidx.fragment.app.FragmentActivity; import androidx.fragment.app.FragmentActivity;
import androidx.fragment.app.FragmentManager; import androidx.fragment.app.FragmentManager;
@ -123,20 +124,33 @@ public class WikipediaDialogFragment extends WikiArticleBaseDialogFragment {
contentWebView = mainView.findViewById(R.id.content_web_view); contentWebView = mainView.findViewById(R.id.content_web_view);
contentWebView.setOnTouchListener(new View.OnTouchListener() { contentWebView.setOnTouchListener(new View.OnTouchListener() {
float initialY, finalY;
boolean isScrollingUp;
@Override @Override
public boolean onTouch(View v, MotionEvent event) { public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) { int action = MotionEventCompat.getActionMasked(event);
case MotionEvent.ACTION_SCROLL:
case MotionEvent.ACTION_MOVE: switch(action) {
readFullArticleButton.setVisibility(View.GONE); case (MotionEvent.ACTION_DOWN):
break; initialY = event.getY();
case MotionEvent.ACTION_CANCEL: case (MotionEvent.ACTION_UP):
case MotionEvent.ACTION_DOWN: finalY = event.getY();
case MotionEvent.ACTION_UP: if (initialY < finalY) {
readFullArticleButton.setVisibility(View.VISIBLE); isScrollingUp = true;
break; } else if (initialY > finalY) {
isScrollingUp = false;
}
default:
} }
return false;
if (isScrollingUp) {
readFullArticleButton.setVisibility(View.VISIBLE);
} else {
readFullArticleButton.setVisibility(View.GONE);
}
return false;
} }
}); });