I'm new to Android. I would like to simply know where on a page the user has scrolled. When a certain point on the web page appears at the bottom of the screen, I want to trigger an event. But this code causes an exception. I know that WebView inherits getScrollY() from View. Am I not implementing it correctly?
View 1 Replies
I have a listview displaying my data.Ok. I want to set the scroll position in a position of my choice, but I just cant do it. I used :
myListView.setSelection( anyPosition ); myListView.setSelected(true); and has not worked. I also tried : myListView.scrollTo(0, PositionY); and myListView.scroolBy(0, PositionY);
and there's a strange behavior, this two methods doesn't put the scrool in the "PositionY", it made the "PositionY" be the first position in the list, cutting everything that exist before.
I have a long listView that the user scrolls around and then returns to the previous menu. What I want is that when the user opens this list View again the list to be scrolled to where the it was previously left. Any ideas on how this can be achieved ?
View 2 Replies View RelatedI am using BaseAdapter for displaying the list. This list is fetched by calling a Web Service. At a time only 20 records are returned. Now, when the scroll of the BaseAdapter reaches the last record then the application should fetch more records from the server.
So, what I want to know is how to know the scroll position or some other way of knowing that the last record has been reached so fetch more records from the server. I don't want to implement the next and previous button on the screen.and so am trying to implement it in this manner.
In my app, my main class extends ListActivity and calls a fillData() function to reload the list whenever changes are made. I'm still getting the hang of this, so I borrowed that concept from the Android Notepadv1-Notepadv3 tutorials. Everything works great, however whenever I need to change the list (remove an item, re-sort it, edit an item), the ListView refreshes and loses its scroll position. The scroll position is reset to the top after each fillData() call.
It appears to be resetting the scroll position to the top because I'm using setListAdapter() each time in fillData(), setting it to a new SimpleCursorAdapter. How can I get the list to "update in place", where the scroll position is seamlessly maintained to the user? I tried heading down the "items.changeCursor(cursor)" path, but that didn't seam to do much for me.......................
I'm trying to get the scroll position on a ListActivity. Here is what I'm trying to do: I have a list activity that is populated from an XML file. Another thread downloads all pictures so the user can see the list while the thread is still downloading the files.
What I'm trying to do is when the thread finishes getting all pics it reads the listview scroll position, refresh the listview and scroll to that position again.
ListView main = getListView(); <-- not sure if I'm really getting the ListView this way. int scY = main.getScrollY(); Log.d("Scroll", scY + " "); <--- this is printing zero even when at the moment I run this I already scrolled the list. setListAdapter(listadapter); main.scrollTo(0, scY);
Whenever you search for an app in the Android Market, click on one and realize its not the one you wanted, you click back but then the scroll position gets reset and you're at the top of the search results. This is even more particularly annoying whenever you look through your previously installed apps on the Android Market and try to re-install some. Its not fun having to scroll 5 pages each time.
View 2 Replies View RelatedHow can I save and load the scroll position of a listview that is destroyed/hidden/paused.
View 3 Replies View RelatedI have a GridView in my activity, and I want to save current scroll position while user goes to another place and restore it while user comes back. I try to use GridView.getScrollY and GridView.scrollTo methods, but getScrollY method always return 0 instead of right scroll position. Am I using this method in a wrong way?
Could anyone who can teach me how to retrieve the scroll position in a GridView?
I searched the Internet found that someone said we can use getSelectedItemPosition and setSelection methods, but this requires user to select at least one item, how about the case that no items is selected?
I have a horizontal scrollview with text fields,here i need to get the first and last position of textview when i scrolled it,how can i get the position of textview when i scrolled.and also need to know how to set color for text when i clicked the particular text from this. sample code....
View 1 Replies View RelatedI'm building a chat room application where new events are being polled for every X seconds. Every time that happens, this code updates the RoomAdapter (a custom subclass of ArrayAdapter) with the new data and scrolls it to the bottom:
RoomAdapter adapter = (RoomAdapter) getListAdapter();
for (int i=0; i<newEvents.size(); i++)
adapter.add(newEvents.get(i));
getListView().setSelection(events.size()-1);
This is fine, except that if the user is scrolling up to glance at the room's history, it's going to jump her down to the bottom when the poll happens. What I'd like to do is have it so that if the user is already at the bottom of the list, it stays there after a poll for new events. If the user's intentionally scrolled upwards, I'd like the user not to be disturbed.
How do I detect when I'm already scrolled to the bottom of a ListView?
Note: I can't do getListView().getSelectedItemPosition(), because as the docs note, calling setSelection when in touch mode does not actually select the item, just scrolls to it.
I am aware of setSelection(), setSelectionFromTop(), and setSelectionAfterHeaderView(), but none of them seems to do what I want.
Given an item in the list, I want to scroll so that it is in view. If the item is above the visible window of the list, I want to scroll until the item is the first visible item in the list; if the item is below the visible window, I want it to scroll up until it is the last visible item in the list. If the item is already visible, I don't want any scrolling to occur. How do I go about this?
To put it simple: I want to bookmark the current position (probably several positions) in a html file displayed in a WebView to later restore it.
View 2 Replies View RelatedAfter I have loaded WebView with a html page, is it possible to get the position of the region that is currently being displayed within the WebView widget?
View 2 Replies View RelatedI noticed that the position of the builtInZoomControls in WebView (bottom, horizontal right) is not consistent with the default position in the MapView (bottom, horizontal center).
1) Why is that not consistent? (Probably a question to be asked to Google)
2) Is there a way to horizontal center the builtInZoomControls of the WebView without applying custom Zoom controls? Or is that the only way?
I have application which show information on WebView. I use javascript and link too etc. "<a href="#" onclick="prompt('" something "'); ">" My problem: when I click on link page scroll up. I don't wont it. I can that page stay on the same place.
View 3 Replies View RelatedIs it possible to disable the scrollbar in the webview? If possible how?
View 7 Replies View RelatedIs there any way to be notified as the content of a WebView is scrolled? I can't see any functionality similar to that for ListView.
View 5 Replies View RelatedI have a webview that I use to display html content. The html content does not fill the entire screen. I have the webview attributes set to "fill_parent" for width and height in the main.xml file.
Any idea how to get rid of the vertical scroll bar? It shows up the full length of the screen even though the content of the html file doesn't fill it.
I'm trying to programmatically scroll a WebView to the location of a particular element in the DOM tree. But so far I haven't been able to get the WebView to respond to scroll requests. I've tried calling JavaScript that uses window.scrollTo(...), but the WebView doesn't respond. On the Java side, I've tried calling the WebView.flingScroll(...) method. WebView will respond to flingScroll, but what I need is a scrollTo(...) capability. Any ideas?
View 3 Replies View RelatedI have a WebView that displays a complex graph. My problem is that the webview will only scroll a few pixels instead of scroll horizontal all the way so I can view the entire graph. How can I make it so my WebView is able to be scrolled all the way to the right/left to view the entire webview content? I tried putting a ScrollView around my WebView but it did the same thing.
View 2 Replies View RelatedI put a webview inside a scroll view according to this http://www.anddev.org/view-layout-resource-problems-f27/add-imageview. But I found that if the webview already loaded a long content, and then load short content again. The webview doesn't resize and the scroll bar is still here.
View 6 Replies View RelatedI have a WebView widget in my app that displays custom HTML content.The code is really simple - the class that handles the layout also implements the WebViewClient methods. It loads the html data into the WebView. The app works well on all OS's except Froyo. On Froyo the WebView doesn't respond to vertical scroll event it can scroll horizontally though.I had a onFling event listener - which has been disabled, but still no luck.
View 1 Replies View RelatedI have this webview on which I have a textbox at the bottom. The problem is when I click on this textbox the keypad pops up and covers it. How can I scroll the webview so that the textbox remain above the keypad. In iphone it is handled automatically.
View 7 Replies View RelatedI update the html in a webView using loadData() followed by a reload(). I get the new data to display but the scroll of the page has not updated.I want to keep the view of the page at the bottom. I can wait a long time and it still doesn't update.Once I click the webView the scroll bars adjust and I can drag to the bottom of the page and see the new text.Things I have tried:
- multiple settings and calls in onPageFinished(). None worked because the getContentHeight() hasn't changed yet.I have also tried to scrollTo(100 + getContentHeight) and that doesn't work.
- pageDown(true)
still no good, thinking i could simulate my click.adding a few br tags. This worked a bit, but the number of br's has to equal the number of lines of new text. Since the number of new lines is not something that can be exactly determined based on orientation and screen variables it's not a good fix.
Say, a WebView with an html that scrolls vertically. What would be the basic steps to make it scroll horizontally (screen by screen)? Can't grasp the idea.
View 2 Replies View RelatedI have a HorizontalScrollView with a series of CompoundButtons. I want to find the (x,y) for a given child view. I have tried using:
getLocationOnScreen()
getLocalVisibleRect()
getChildVisibleRect()
like this:
View tmpView = this.findViewById(viewId);
Rect hitRect = new Rect();
tmpView.getLocalVisibleRect(hitRect);
the hitRect is always 0,0 - 0,0.
I need the x,y mainly to scroll to a particular child view. Any help is greatly appreciated.
I have the Favorites widget on one of my desktop screens. Every time I scroll over to it, The pictures change position, and then snap back to the original order. Has anyone else noticed this, or have an idea why it is doing this? It's annoying.
View 1 Replies View RelatedOn my htc i was looking through display, i see g sensor calibration and i perform this calibration and after i do so the screen seems to have a delay when switch from the horizontal position to the vertical position. its weird because when i switch to the phone horizontally it switch normally and responds fast. but when i switch back to vertically it takes almost 7 seconds to actually switch back, sometimes it switch within 2 or 3 secs but never as quick as switching horizontally.
MQuote:
Originally Posted by Rigmaster
Make sure you have the latest updates, which impact speed on the device in some unpredictable and unexpected ways. During system updates, your Evo may reboot and will take the g-sensor changes as last calibrated.
If you're already updated, shut down and repower (soft reboot) should do the trick. I actually updated my phone and after it started to do this. I restarted the phone plenty of times i even took the battery out for 30 seconds. It only does it when im texting on the browser, basically everything but the camera. He camera screen rotation is perfect. I even rooted the phone but i havent figured out how to use the root to fix the problem. Should i do a firmware update? Because i just did the htc software update.
I have text area and and down to that "ok" and "cancel" button. when i click on text area keyboard appear and focus on the text area and buttons get hide behind the keyboard.
I want when text area get focus scroll a little bit and also display the bottom buttons while text area id selected.