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scroll to bottom even if last visible item is heigher than view

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This commit is contained in:
Daniel Gultsch 2018-04-22 16:01:18 +02:00
parent 2a9413e64d
commit cfaebbdbd1
1 changed files with 22 additions and 12 deletions
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34
src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
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@ -92,7 +92,6 @@ import eu.siacs.conversations.ui.util.ScrollState;
import eu.siacs.conversations.ui.util.SendButtonAction; import eu.siacs.conversations.ui.util.SendButtonAction;
import eu.siacs.conversations.ui.util.SendButtonTool; import eu.siacs.conversations.ui.util.SendButtonTool;
import eu.siacs.conversations.ui.widget.EditMessage; import eu.siacs.conversations.ui.widget.EditMessage;
import eu.siacs.conversations.utils.ExceptionHelper;
import eu.siacs.conversations.utils.MessageUtils; import eu.siacs.conversations.utils.MessageUtils;
import eu.siacs.conversations.utils.NickValidityChecker; import eu.siacs.conversations.utils.NickValidityChecker;
import eu.siacs.conversations.utils.QuickLoader; import eu.siacs.conversations.utils.QuickLoader;
@ -374,7 +373,7 @@ public class ConversationFragment extends XmppFragment implements EditMessage.Ke
@Override @Override
public void onClick(View v) { public void onClick(View v) {
stopScrolling(); stopScrolling();
setSelection(binding.messagesView.getCount() - 1); setSelection(binding.messagesView.getCount() - 1, true);
} }
}; };
private OnClickListener mSendButtonListener = new OnClickListener() { private OnClickListener mSendButtonListener = new OnClickListener() {
@ -1387,7 +1386,7 @@ public class ConversationFragment extends XmppFragment implements EditMessage.Ke
return; return;
} }
if (!transferable.start()) { if (!transferable.start()) {
Log.d(Config.LOGTAG,"type: "+transferable.getClass().getName()); Log.d(Config.LOGTAG, "type: " + transferable.getClass().getName());
Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show(); Toast.makeText(getActivity(), R.string.not_connected_try_again, Toast.LENGTH_SHORT).show();
} }
} else if (message.treatAsDownloadable()) { } else if (message.treatAsDownloadable()) {
@ -1827,7 +1826,7 @@ public class ConversationFragment extends XmppFragment implements EditMessage.Ke
} }
} else if (conversation == null && activity != null && activity.xmppConnectionService != null) { } else if (conversation == null && activity != null && activity.xmppConnectionService != null) {
final String uuid = pendingConversationsUuid.pop(); final String uuid = pendingConversationsUuid.pop();
Log.d(Config.LOGTAG,"ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid="+uuid); Log.d(Config.LOGTAG, "ConversationFragment.onStart() - activity was bound but no conversation loaded. uuid=" + uuid);
if (uuid != null) { if (uuid != null) {
findAndReInitByUuidOrArchive(uuid); findAndReInitByUuidOrArchive(uuid);
} }
@ -1938,13 +1937,16 @@ public class ConversationFragment extends XmppFragment implements EditMessage.Ke
final Message first = conversation.getFirstUnreadMessage(); final Message first = conversation.getFirstUnreadMessage();
final int bottom = Math.max(0, this.messageList.size() - 1); final int bottom = Math.max(0, this.messageList.size() - 1);
final int pos; final int pos;
final boolean jumpToBottom;
if (first == null) { if (first == null) {
pos = bottom; pos = bottom;
jumpToBottom = true;
} else { } else {
int i = getIndexOf(first.getUuid(), this.messageList); int i = getIndexOf(first.getUuid(), this.messageList);
pos = i < 0 ? bottom : i; pos = i < 0 ? bottom : i;
jumpToBottom = false;
} }
setSelection(pos); setSelection(pos, jumpToBottom);
} }
} }
@ -1969,17 +1971,25 @@ public class ConversationFragment extends XmppFragment implements EditMessage.Ke
this.binding.unreadCountCustomView.setVisibility(View.GONE); this.binding.unreadCountCustomView.setVisibility(View.GONE);
} }
private void setSelection(int pos) { private void setSelection(int pos, boolean jumpToBottom) {
this.binding.messagesView.setSelection(pos); setSelection(this.binding.messagesView, pos, jumpToBottom);
this.binding.messagesView.post(() -> this.binding.messagesView.setSelection(pos)); this.binding.messagesView.post(() -> setSelection(this.binding.messagesView, pos, jumpToBottom));
this.binding.messagesView.post(this::fireReadEvent); this.binding.messagesView.post(this::fireReadEvent);
} }
private boolean scrolledToBottom() { private static void setSelection(final ListView listView, int pos, boolean jumpToBottom) {
if (this.binding == null) { if (jumpToBottom) {
return false; final View lastChild = listView.getChildAt(listView.getChildCount() - 1);
if (lastChild != null) {
listView.setSelectionFromTop(pos, -lastChild.getHeight());
return;
}
} }
return scrolledToBottom(this.binding.messagesView); listView.setSelection(pos);
}
private boolean scrolledToBottom() {
return this.binding != null && scrolledToBottom(this.binding.messagesView);
} }
private void processExtras(Bundle extras) { private void processExtras(Bundle extras) {