Develop Reference

Sizing a ListView when it's a nested Fragment

I want a ListView to fill the space available to it while still leaving room for a small footer view at the bottom of the screen. I'm trying to use a RelativeLayout to accomplish this and attempted to use the solution discussed at Limit number of rows of listview . The problem I'm running into is I'm using nested Fragments, so my ListView is actually a FrameLayout in my xml then I load a ListFragment into that frame dynamically. Given the nested fragment stipulation, how can I get my FrameLayout to "stackFromBottom" as I would with a ListView? I just need to stop the list from pushing the other View off the bottom of the screen. Thanks for your time all.

Here is the solution I came up with:
<TextView
android:id="#+id/advertisement"
android:layout_width="match_parent"
android:layout_height="30dp"
android:text="Ads will appear here"
android:gravity="center"
android:layout_alignParentBottom="true"/>
<FrameLayout
android:id="#+id/news_frag"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/carousel_menu"
android:layout_above="#id/advertisement"/>
The trick was to set both layout_above AND layout_below for the FrameLayout, I had only been setting one and that was apparently allowing the layout to push it off of the screen. Also worth noting is they had to be declared in reverse order of how they actually appear on the page, so that the FrameLayout could properly reference the other View.

scrolling the background image in android java while adding a view to screen

I want to scroll the background in android. I have a scrollview which has many views. I need to implement a way wherein i need to scroll only the background while adding the views. I came across many forums but none of them are very clear. Please give an idea or references to implement it. To give more idea for what i am looking for is, Just consider a bike game wherein the background road image moves while riding the bike. I just need similar implementation while scrolling the screen.

Maybe you could do like this:
RelativeLayout as the parent
ScrollView with your image set as background
Then the other views, but outside of the ScrollView and inside of the RelativeLayout.
EDIT:
<RelativeLayout
android:id="#+id/relParent"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<OtherViews />
<ScrollView
android:id="#+id/scrlParent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#drawable/yourbackground">
</ScrollView>
</RelativeLayout>
I think that something like this might work. You see, the RelativeLayout is the parent. Then comes your other views, on the top of your ScrollView. Then, after your other views tag, comes the ScrollView, with only a background. I'm not sure if a background tag would work, so maybe you should remove the android:background="#drawable/yourbackground" and put an ImageView inside of the ScrollView.

How to disable any event on a View in Android?

My question is simple: How to disable any event on a View in Android? (including removing its focussability, like I just want it to be there visually but be inexistant on everything else)
And does it work on a whole view tree? (like if I disable events on the root, all the events will be disabled for its children?).
Now, before you say anything I have tried all the following:
setEnabled
setFocusable
setSelected
setClickable
setActivated
And none of these methods appear to work, seriously.
I have tried them directly on a WebView, as well as on the parent layout on everything but I am still able to interact with it.
Any idea?
Thanks!
EDIT#1
The solution that consists in adding a view on top of the view that needs to be disabled doesn't work. Actually, it's still possible to click on the inner view, I have tried with a simple example:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#ff0000">
<Button
android:id="#+id/button"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="Click Me!"
/>
</LinearLayout>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#00000000"
/>
</FrameLayout>
Here it's still possible to click on the button.
EDIT#2
The reason why I want to do this is related to the following question that I asked weeks ago.
What I have is a ListViewacting as a navigation bar which is underneath a View that holds the content of my app. The problem with this implementation is that when I try to scroll through the ListView when there is a focusable view in the layer on top of it, well the ListView doesn't scroll and instead it's the top view that takes focus (That's the case when there is a
Webview or an EditText etc.).
So yes as mentioned in one of the answers, I can disable any click events on a WebView by overriding setOnTouchListener but the view remains focussed and I think this is the reason why I am still having the same issue with my navigation bar.

Simply put a view on top of your view. You can toggle it on off by setting view.visibility = gone/visible.
<FrameLayout>
<WebView/>
<FrameLayout This view will be on top/>
</FrameLayout>
Edit: Just stumpled upon this link: https://stackoverflow.com/a/3856199/969325
Basically disables all touch event for the webview. Tryed that?
Edit 2 reedit: Try to set the visibility to gone for the the top view below your listview.

Scrollbar does not scroll while using dynamically filled listview

I am not able to scroll in a scrollview which contains a listview and is filled dynamically as I get data from the webservice.
I am able to do scrolling in emulator through mouse wheel, but in avtual device I can not scroll the list.
The attributes of scrollview are
<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginTop="10dp"
android:layout_weight="0.6"
android:fillViewport="true"
android:orientation="vertical"
android:padding="6.0dip"
android:scrollbarAlwaysDrawVerticalTrack="true"
android:scrollbarFadeDuration="5000"
android:scrollbarSize="20dp"
android:scrollbarStyle="insideOverlay"
android:scrollbars="vertical" >
<LinearLayout
android:id="#+id/linearLayout2"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center_vertical"
android:orientation="vertical"
android:padding="2dp" >
<ListView
android:id="#+id/listbox_list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="599.84"
android:minHeight="250dp" >
</ListView>
</LinearLayout>
</ScrollView>
Please help me soon

by just looking at the layout_width and layout_height of your elements, it's clear that your scrollview will not scroll. unless you have a fixed height listview, never put a listview inside a scrollview (or in this case, a listview inside a layout that sits inside a scrollview).

I don't have any links to back this up right now, but it's not possible, and a well-known 'problem'. If you google a bit, or search here on SO, you'll find a number of topics covering this.
The problem arises in most cases when you have a scrolling view inside another scrolling view in the same direction. Consider the following example:
You have Two lists inside of a ScrollView.
Both lists are exactly one screen tall.
How do you scroll down to the second list?
When scrolling, how will your layout know if you are scrolling the list or the container?
This is basically the question that is the cause, and the only official solution is that it is as it should be, and there won't be a fix. Usually it is enough to have either a ListView or a ScrollView, but I have faced cases when you must have a listview in a scrollview (in my case a client wanted an iPhone-like datespinner in a scrolling page).
I solved it by using a FrameLayout, containing a custom ScrollView, and a ListView on top of that. Then in the code for the custom ScrollView, I added a line in the onScroll method that updated the top margin of the ListView, to psuh it upwards or downwards as the user scrolled. Surprisingly it worked.
NOTE: remember that:
The ListView handles its own scroll. If all you need is a scrolling
list, you do not need a ScrollView.
If you need a layout with a list and space for buttons or other
views, consider creating your layout so that the list only covers
enough space for you to fit your other views below/above without
scrolling.

Add following in your linear layout
android:scrollbars="vertical"
android:scrollbarAlwaysDrawVerticalTrack="true"

Overscroll header/footer for ScrollView?

ListView has this nice feature where you can set an overscroll header or footer. ScrollView, unfortunately, has no such thing. Does anyone know of a way to put together something that works like a ScrollView with an overscroll header/footer?

My best guess is you might be able to accomplish this with a similar approach as pull-to-refresh for lists is implemented on Android devices: you basically stretch a view at the top of (probably actually above - same for a 'footer', but then below) the ScrollView to fake an overscroll effect.
For some ideas on this, have a look at this pull-to-refresh implementation. It dynamically adjusts the padding of a header view in the list to simulate it being overscrolled when 'pulling'.

Can't you put your ScrollView inside a RelativeLayout, which will also contain the header and footer? Something like this:
<RelativeLayout ...>
<TextView
android:id="#+id/header"
android:alignParentTop="true"/>
<ScrollView
android:id="#+id/scroller"
android:layout_below="#id/header"
android:layout_height="fill_parent"/>
<TextView
android:id="#+id/footer"
android:layout_below="#id/scroller"
android:alignParentBottom="true"/>
</RelativeLayout>
In this question ( Can we use a ScrollView inside a LinearLayout? ), someone showed how to put a ScrollView inside a LinearLayout. It should be the same.