Develop Reference

How to set an imageView to not be fixed at a position

the xml file:
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="#+id/singleProp"
android:scrollbarAlwaysDrawVerticalTrack="true"
android:visibility="gone">
<ImageView
android:layout_width="200dp"
android:layout_height="200dp"
android:id="#+id/propertyImg"/>
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/propertyData"
android:layout_below="#id/propertyImg">
</ListView>
</RelativeLayout>
With the above codes, the image will be fixed at top-center position. With CSS terms in html, the style of that image view is style="position:fixed" but what I want is style="position:relative".
For example,
I hope the picture can illustrate the idea.
May I know how I should modify my codes?

Let me elaborate a bit more on mark.zhai`s answer, since it's the only one that I find to be the proper approach.
First of all I wanna point out that you should think about implementing your list with a RecyclerView instead of ListView (right now it's generally favoured to use a RecyclerView; ListView is getting kinda deprecated)...
If you want to be sure that your ImageView works nicely (scroll-wise) with your list (without too much "side-work" on scroll integration), you should implement it as a first item of your list. If you stick with your ListView you can use the header function of it and add your ImageView with ListView's method addHeaderView. If you decide to move to a RecyclerView (which I think you should), you can accomplish that in a bit more difficult manner (more on that for example here).

why don't u make the imageview an item of the listview

For this you need to create a custom listview which having the first item as a image view and later having all your list items. Probably you can control this in your adapter getview method by the use of position(int)
For example if Position is equal to '0' show only image view and if position is not equal to '0' show your rest elements by using Visibility
Note: here their might be a chance of performance issues as it is loading the unnecessary views every time

To achieve this, you need to scrolling the complete layout. In general case, when you fling on a list view, only the item within the list view moves.
Check this link.

I'm not entirely sure what you're asking, as I don't know a lot about CSS, but you can check out this link which describes aligning elements within a Relative Layout.
You might want to try adding alignParentLeft or alignParentRight.
Remember margins are external to the object and padding is internal. For example to move the image 20dp from the left you would:
<ImageView
android:layout_alignParentLeft="true"
android:layout_marginLeft="20dp"
android:layout_width="200dp"
android:layout_height="200dp"
android:id="#+id/propertyImg"/>
Here are some useful links about mastering Relative Layouts:
Relative Layout Params
Moving Elements Around in a Relative Layout Tutorial
Another RelativeLayout Example
Margins and Padding

Why don't you use layout_below to take your layout below whatever you want, and use layout_gravity to set it's gravity. You can check these Link to get you better understand, it will help you in these problem.

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.

insert more than 2 gridview in a linearlayout

im trying to insert 6 gridviews with 6 imageview above each of them ! the problem im facing is that i cant scroll my page to see all my girdviews the first gridview seems fine as it wraps all its contents and set the height to it the second gridview shows only first row and make it scrollable but i can't see my other gridviews i want a layout like
--ImageView--
--GridView1--
--ImageView--
--GridView2--
--ImageView--
--GridView3--
and so on
<LinearLayout>
<ImageView />
<GridView />
--
--
<GridView6 />
</LinearLayout>
i have tried using scrollview and all but couldn't get the results !
Thanks

Hee is how you can do this. Check the answer here. It is an expandable height GridView, which you will want to import / create in your project. What that basically means is that as more items are added to the GridView, it will just expand its height, as opposed to keeping its height set and using scrolling. This is exactly what you want.
Once you have the ExpandableHeightGridView in your project, go to your XML layout where you want the GridView to be. You can then do something like this (paraphrasing):
<ScrollView ...>
<RelativeLayout ...>
<com.example.ExpandableHeightGridView ... />
<other view items />
</RelativeLayout>
</ScrollView>
Then, in your activity where you set the GridView's adapter, you want to make sure you set it to expand. So:
ExpandableHeightGridView gridView = (ExpandableHeightGridView) findViewById(R.id.myId);
gridView.setAdapter(yourAdapter);
gridView.setExpanded(true);
The reason you want this expandable GridView is because, the fact that a standard GridView doesn't expand is what causes it to scroll. It sticks to a certain height, and then as more items fill it past its view bounds, it becomes scrollable. Now, with this, your GridView will always expand its height to fit the content within it, thus never allowing it to enter its scrolling mode. This enables you to use it inside of the ScrollView and use other view elements above or below it within the ScrollView, and have them all scroll.
This should give you the result you're looking for. Let me know if you have any questions.

ListView populates from the bottom instead of from the top

I have a listView that expands upwards instead of downwards.
I have another listView on another page that works just fine and populates itself from the top -> bot.
Why does my listView start from the bottom instead of the top?
My XML
`
<ListView
android:id="#+id/list_view_showRegister"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_above="#+id/showRegister"
android:layout_alignParentLeft="true"
android:layout_marginTop="50dp"
android:clickable="false" >
</ListView>`

Your ListView is still actually populating from the top downwards. Just not from the top of the page.
You have set the layout_height="wrap_content" and the layout_above="#+id/showRegister". With the height being wrap_content, the view will only be as large as it's contents. Then, due to the fact you have used layout_above, it will be directly above another view.
The listview is not filling from the bottom, it is filling from the top (of the listview) - but the listview itself is only starting from halfway up the screen. Anything above the listview is not actually part of the listview, but empty space instead.
The solution is to either set the layout_height="match_parent", or remove the layout_above tag.
I know this is an old question but I hope this helps anyone else who may have found this issue via google.

Have a look a these links. Is it possible to make a ListView populate from the bottom?. populating from bottom.
Add new items to top of list view on Android?. Add new item at the top of list.

See for android:stackFromBottom attribute.

Hiding footer in ListView

When my Activity loads, I inflate a layout file that I use for a footer. I attach it to the ListView (addFooterView) and then set its visibility to View.GONE. I maintain a reference to it, and when I want the user to see it, I set the visibility to View.VISIBLE.
For the most part, this works great. However, the footer seems to still take up space. If the user uses the scroll wheel/pad, the area the footer is taking up gets highlighted. I'd like to polish this more so the footer is completely gone; ideally without detaching it from the ListView.
Is this possible? Or am I going to have to set/unset the foot instead of simply toggling its visibility?

You can use listView.removeFooterView(view). The easiest way to do this is to create an instance variable to hold your inflated footer view (so you only inflate it in onCreate() ). Then just call listView.addFooterView(instanceFooter) and listView.removeFooterView(instanceFooter) as needed.
Edit:
Here's what I'm doing to get this to work:
inflate footer layout(s) in onCreate
onResume: IF the adapter has not been instantiated, call addFooterView() THEN initialize your adapter (keep an instance reference to it) and call setAdapter(). This will leave the ListView "prepped"
onResume: update the adapter with the data (I have my data in a separate class) and call notifyDatasetChanged()
Call removeFooterView() (it will hide it if it's being displayed and do nothing otherwise)
Call addFooterView() if the footer needs to be displayed

You can toggle the visibility. To do that, you need to wrap the content of your footer using a linearlayout, then you set the linearlayout visibility to GONE.
In the example bellow I set the visibility of LogoLinearLayout to GONE and it worked.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:id="#+id/LogoLinearLayout"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/Logo"
android:src="#drawable/Logo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="#dimen/spacing3"
android:layout_marginBottom="#dimen/spacing3"
android:layout_gravity="center" />
</LinearLayout>
</LinearLayout>

Set isSelectable parameter to false when You call addFooterView to disable footer selection and highlighting

Try using View.INVISIBLE instead of View.GONE. (I have not tried this,but it might work)