I have a scrollView in which while I am at end of the scrollView, on clicking a button at the end I need to show a view below that button. I am doing it by changing the visibility of that newly added view from GONE to VISIBLE. Its working but after clicking the button I am not able to see the newly added view i.e I need to scroll down the scrollView to show that view. Is there a way to scroll the ScrollView to that newly added view after clicking the button? and also to hide that view and scroll back to normal state after clicking that button again.
Thanks in advance!
it's an alternative which pretty much does the same thing.
Instead of Scrolling to the bottom of the screen, change the focus to a view which is located at the bottom of the screen.
That is, Replace:
scroll.scrollTo(0, scroll.getBottom());
with:
Footer.requestFocus();
Make sure you specify that the view, say 'Footer' is focusable.
android:focusable="true"
android:focusableInTouchMode="true"
or if above is not working try this
scrollView.post(new Runnable() {
#Override
public void run() {
scrollView.fullScroll(ScrollView.FOCUS_DOWN);
}
});
As the view that i was adding at the end was added with an expand animation so i used a countdown timer for it as follows:
new CountDownTimer(500, 1) {
public void onTick(long millisUntilFinished) {
myScrollView.scrollTo(0, R.id.bottomView);
}
public void onFinish() {
}
}.start();
Thats all.
Related
I made a Ctrl+F search box with next ocurrence button, when i click next it scroll to next word, but the word is out of screen , if i scroll a few pixels down , you are able to see it.
so after the method find next is called i would like to scroll a little more so the highlighted word is visible.
mFindNextButton = (ImageButton) findViewById(R.id.find_next);
mFindNextButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
mCurrentWebView.findNext(true);
//scroll a little more()
}
});
Maybe something like this:
scrollView.scrollTo(0, scrollView.getScrollY()+10); // Scroll down 10 more pixels
I have two buttons Button 1, Button 2 placed horizontally like tabs. On Click of these button I am adding Linear Layout in Scroll View.
Now suppose I am clicking Button 1 and scroll down and immediately switch or click to Button 2 that scroll applies on newly added layout. I want every time on click of button content should scroll to top.
I have tried scrollview.scrollT0(0,0) and scrollview.scrollTo(0,scrollview.getTop()) but none of them is working.
I've ran into these types of issues before.
I suggest trying the following:
scrollview.post(new Runnable() {
#Override
public void run() {
scrollview.scrollTo(0, 0);
}
});
The reason this works is forces the action in the Main Thread which is where all UI Activity happens (safely, of course).
Try this . Just it is sample
private void scrollMyListViewToBottom() {
your_list.post(new Runnable() {
public void run() {
if (!running) {
// Select the last row so it will scroll into view...
your_list.setSelection(your_list.getCount() - 1);
running = true;
}
}
});
Note :
Before call this method just change Boolean running = false;
Hi i have two textViews that i initially set its visibility to gone then animate in and become visible. now i want to make the invisible again but for some reason they're still showing on screen does anyone no why?
in my onCreate() i make the view gone
register = (TextView)findViewById(R.id.register);
register.setVisibility(View.GONE);
forgotpassword = (TextView)findViewById(R.id.forgotpw);
forgotpassword.setVisibility(View.GONE);
then later on i make it visible
public void run()
{
animations();
loginForm.setVisibility(View.VISIBLE);
register.setVisibility(View.VISIBLE);
forgotpassword.setVisibility(View.VISIBLE);
}
and then when a user presses a button i want the text views to become invisible so that they retain their layout but they stay visible on screen
signInBtn = (Button) findViewById(R.id.signin);
signInBtn.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
signInProcess();
}
});
public void signInProcess() {
register.setVisibility(View.INVISIBLE);
forgotpassword.setVisibility(View.INVISIBLE);
setuploader.setVisibility(View.VISIBLE);
}
In Android when you animate something, It's just drawn somewhere else. The actual element is not moved. So when you animate signInBtn it's drawn somewhere else, but the actual button is not moved from the original position. So when you click the button the click handler is not called.
To avoid this set fillAfter = True in your animation so the button will actually get moved at the end of your animation.
Also, after animating a view in Android make sure you call View.clearAnimation() before trying to change its visibility.
My ListView should automatically scroll to end, when new message received or sent.
But when I use Android keyboard to send message from EditText below ListView, ListView resized and new message, which I want to send, appears out of screen and I have to scroll down to see it, even if keyboard disappears and ListView resizes again.
To scroll ListView I use:
listView.postDelayed(new Runnable() {
#Override
public void run() {
listView.setSelection(listView.getCount());
}
}, 100);
but is not working correctly in my case.
Does anyone know why it may occur? Is there a way, which ALWAYS scroll ListView to end?
Thanks, your help is much appreciated!
Try this insead of your code:
listView.setTranscriptMode(ListView.TRANSCRIPT_MODE_ALWAYS_SCROLL);
(or set it by XML layout).
You can try to add this line of code after you set selection to your list:
listView.smoothScrollToPosition(listView.getCount());
Resulting code should look like this:
listView.postDelayed(new Runnable() {
#Override
public void run() {
listView.setSelection(listView.getCount());
listView.smoothScrollToPosition(listView.getCount());
}
}, 100);
Set android:windowSoftInputMode in manifest for the activity to adjustPan|adjustResize.
I have a Listview in Android. I want that the Listview continuously scrolls from top to bottom by itself. It should happen infinitely
And obviously I want to capture the click on any of the items of the Listview, post that the scroll will continue
Anybody having experience with such an implementation. Please help !!
http://groups.google.com/group/android-developers/msg/753a317a8a0adf03
To scroll automatically, you can use this: listView.smoothScrollToPosition(position);
private void scrollMyListViewToBottom() {
myListView.post(new Runnable() {
#Override
public void run() {
// Select the last row so it will scroll into view...
listView.smoothScrollToPosition(myListAdapter.getCount() - 1);
// Just add something to scroll to the top ;-)
}
});
}