Is there a way to show (horizontal) dividers between rows in a gridview?
I tried putting a small divider-image below every grid item, but this is not a solution, because it won't span the whole row when a row is not completely filled with items.
Is there a way to just add an image between every row? I can only find methods for changing the space between rows.
If you are using custom layout for grid items. Below code will work.
Step 1: Give background color to GridView
This is going to serve as a divider.
Give horizontalSpacing and verticalSpacing as 1dp
backgroundColor will be your divider color.
<GridView
android:id="#+id/gridView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#e5e5e5"
android:horizontalSpacing="1dp"
android:numColumns="auto_fit"
android:stretchMode="columnWidth"
android:verticalSpacing="1dp" >
Step 2: Give background color to Custom Grid Item Layout
This is going to serve as a foreground color for GridItems.
In my case I kept it white (#fff)
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center"
android:background="#fff"
android:padding="15dp"
>
<ImageView
android:id="#+id/icon"
android:layout_width="50dp"
android:layout_height="50dp"
android:src="#drawable/ic_launcher_transparent" />
<TextView
android:id="#+id/lable"
android:layout_marginTop="5dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Medium Text"
android:textStyle="bold"
android:textColor="#D0583B"
android:textAppearance="?android:attr/textAppearanceSmall" />
</LinearLayout>
Result
Note:
If you do not want vertical separator, keep horizontalSpacing = 0dp
If you do not want horizontal separator, keep verticalSpacing = 0dp
I ended up creating a custom gridview, something like this:
https://stackoverflow.com/a/9757501/1310343
using a background image that is exactly as high as one item in my gridview, and has a devider at the bottom.
Works like a charm!
Just wanted to share how I implemented this using the link accepted by OP.
For my case I also needed to control the length of the separators, so I couldn't get around subclassing GridView.
public class HorizontalSeparatorGridView extends GridView {
// Additional methods
#Override
protected void dispatchDraw(Canvas canvas) {
final int count = getChildCount();
for(int i = 0; i < count; i++) {
View child = getChildAt(i);
int bottom = child.getBottom();
int left = child.getLeft();
int right = child.getRight();
Paint paint = new Paint();
paint.setColor(0xffececec);
paint.setStrokeWidth(Math.round(0.5 * density));
int offset = // Some offset
canvas.drawLine(left + offset, bottom, right - offset, bottom, paint);
}
super.dispatchDraw(canvas);
}
I subclassed dispatchDraw as opposed to onDraw just to be safe but I don't think it would matter in this case.
I suggest doing the following:
`
<TableRow
android:id="#+id/tableRow1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="1sp"
android:layout_marginLeft="7sp"
android:layout_marginRight="7sp"
android:layout_marginTop="7sp"
android:background="#android:color/transparent">
<TextView
android:id="#+id/lblDeposit"
android:layout_width="60sp"
android:layout_height="40sp"
android:layout_gravity="center_vertical"
android:layout_marginLeft="0sp"
android:background="#drawable/rounded_top_left_rectangle"
android:gravity="center"
android:paddingLeft="5sp"
android:scaleType="fitXY"
android:text="Deposit"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#000">
</TextView>
<TextView
android:id="#+id/lblDepositvalue"
android:layout_width="50sp"
android:layout_height="40sp"
android:layout_gravity="center_vertical"
android:layout_marginLeft="2sp"
android:layout_marginRight="13sp"
android:background="#drawable/rounded_top_right_rectangle"
android:gravity="center_vertical|center_horizontal"
android:scaleType="fitXY"
android:text="40000/-Rs"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#000">
</TextView>
</TableRow>
<TableRow
android:id="#+id/tableRow2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="6sp"
android:layout_marginLeft="7sp"
android:layout_marginRight="7sp"
android:layout_marginTop="2sp"
android:background="#android:color/transparent">
<TextView
android:id="#+id/lblPoints"
android:layout_width="60sp"
android:layout_height="40sp"
android:layout_gravity="center_vertical"
android:layout_marginLeft="0sp"
android:background="#drawable/rounded_bottom_right_rectangle"
android:gravity="center"
android:paddingLeft="5sp"
android:scaleType="fitXY"
android:text="Points "
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#000">
</TextView>
<TextView
android:id="#+id/lblPointsValue"
android:layout_width="50sp"
android:layout_height="40sp"
android:layout_gravity="center_vertical"
android:layout_marginLeft="2sp"
android:layout_marginRight="13sp"
android:background="#drawable/rounded_bottom_left_rectangle"
android:gravity="center_vertical|center_horizontal"
android:scaleType="fitXY"
android:text="20"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#000">
</TextView>
</TableRow>
</TableLayout>`
Related
I need to have like several listviews on a scrollview which Android doesn't allow me to do so I decided to make it manually to simply inflate some listrows on a vertical LinearLayout, but everything goes not the right way
private void fillData(final ViewGroup parent, final ArrayList<Person> array ){
for (int i=0;i<array.size();i++){
final View view = lf.inflate(R.layout.personal_listrow, parent,true);
parent.setBackgroundColor(getActivity().getResources().getColor(R.color.background_light_darker));
view.setBackgroundColor(getActivity().getResources().getColor(R.color.background_night_lighter));
TextView tvName=(TextView) view.findViewById(R.id.tvName);
TextView tvStatus=(TextView) view.findViewById(R.id.tvStatus);
TextView tvGender=(TextView) view.findViewById(R.id.tvGender);
//fill textviews with info, set the onClickListeners and so on
}
So what I get - the view.setBackgroundColor paints parent as well .
parent is a vertical LinearLayout, view is horizontal LinearLayout - it's strange that I don't paint inflated element only so please explain me why
The next thing - after I add something to array - 1st element changes and all the rest is with unchanged text. However, I walked through the code with debugger - it passes every element and sets text.
The clicklisteners works on the 1st element only..
Would you plz explain
here's vertical , parent layout - nothing special:
<LinearLayout
android:id="#+id/rodll"
android:layout_marginTop="16dp"
android:layout_marginBottom="8dp"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
the inflateable listrow is nothing special also :
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:gravity="center_vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >
<TextView
android:id="#+id/tvStatus"
android:layout_width="0dp"
android:layout_weight=".3"
android:maxLines="1"
android:layout_height="wrap_content"
android:text="tvSt" />
<TextView
android:id="#+id/tvName"
android:layout_weight="1"
android:layout_width="0dp"
android:maxLines="1"
android:layout_height="wrap_content"
android:text="tvName" />
<TextView
android:id="#+id/tvGender"
android:layout_weight=".1"
android:layout_width="0dp"
android:maxLines="1"
android:layout_height="wrap_content"
android:text="tvGender" />
<com.andexert.library.RippleView
android:id="#+id/removeRipple"
xmlns:ripple="http://schemas.android.com/apk/res-auto"
android:layout_marginLeft="30dp"
android:layout_width="35dp"
android:layout_height="35dp"
android:layout_marginRight="7.5dip"
android:padding="3dp"
ripple:rv_alpha="255"
ripple:rv_zoom="true"
ripple:rv_zoomScale="0.8"
ripple:rv_type="rectangle">
<ImageView
android:id="#+id/remove_icon"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="#drawable/remove" />
</com.andexert.library.RippleView>
<com.andexert.library.RippleView
android:id="#+id/addRipple"
xmlns:ripple="http://schemas.android.com/apk/res-auto"
android:layout_width="35dp"
android:layout_height="35dp"
android:layout_marginRight="7.5dip"
android:padding="3dp"
ripple:rv_alpha="255"
ripple:rv_zoom="true"
ripple:rv_zoomScale="0.8"
ripple:rv_type="rectangle">
<ImageView
android:id="#+id/add_icon"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="#drawable/add" />
</com.andexert.library.RippleView>
</LinearLayout>
So. what's the problem and how to solve it?
I've got a ListActivity with a custom Adapter. This adapter uses the following list_item.xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/item_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:id="#+id/ll1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center">
<ImageView
android:id="#+id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="#dimen/default_margin"
android:contentDescription="#string/checkbox_content_description"
android:src="#drawable/checkbox_unchecked"
android:background="#layout/transparent_background"
android:focusableInTouchMode="false"
android:adjustViewBounds="true"
android:clickable="false"
android:focusable="false" />
<TextView
android:id="#+id/tv_amount"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="#dimen/default_margin"
android:layout_marginTop="#dimen/default_margin"
android:focusableInTouchMode="false"
android:clickable="false"
android:focusable="false"
android:textIsSelectable="false" />
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center_vertical"
android:layout_marginRight="#dimen/default_margin"
android:layout_marginTop="#dimen/default_margin">
<TextView
android:id="#+id/tv_product_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:singleLine="true"
android:ellipsize="end"
android:focusableInTouchMode="false"
android:clickable="false"
android:focusable="false"
android:textIsSelectable="false" />
</LinearLayout>
<TextView
android:id="#+id/tv_price"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="#dimen/default_margin"
android:layout_marginTop="#dimen/default_margin"
android:focusableInTouchMode="false"
android:clickable="false"
android:focusable="false"
android:textIsSelectable="false" />
</LinearLayout>
<LinearLayout
android:id="#+id/ll2"
android:visibility="gone"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center"
android:layout_below="#id/ll1">
<Space
android:id="#+id/filler_space"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="#dimen/default_margin"
android:layout_marginRight="#dimen/default_margin"
android:layout_marginBottom="#dimen/default_margin"
android:focusableInTouchMode="false"
android:clickable="false"
android:focusable="false" />
<EditText
android:id="#+id/et_amount"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="#dimen/default_margin"
android:layout_marginBottom="#dimen/default_margin"
android:inputType="number" />
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center_vertical"
android:layout_marginRight="#dimen/default_margin"
android:layout_marginBottom="#dimen/default_margin"
android:padding="0dp">
<AutoCompleteTextView
android:id="#+id/actv_search_product"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:singleLine="true"
android:ellipsize="end"
android:inputType="text" />
</LinearLayout>
<EditText
android:id="#+id/et_price"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="#dimen/default_margin"
android:layout_marginBottom="#dimen/default_margin"
android:inputType="numberDecimal"
android:digits="0123456789.,-" />
</LinearLayout>
</RelativeLayout>
In the Adapter's getView-method I've added the following piece of code:
// Change the width of the Filler-Space to match the Image
// and leave the height as is
Space space = (Space) view.findViewById(R.id.filler_space);
space.setLayoutParams(new LinearLayout.LayoutParams(
imageView.getMeasuredWidth(), space.getMeasuredHeight()));
This gives the following result at first:
When I change the Visibility of my second LinearLayout (ll2) to VISIBLE, it gives the following result:
What I want instead is:
As it seems the Space-View width isn't changed at all.. While I know for fact that the getView methods are successfully called thanks to Log-messages and other things I do in the getView method.
Does anyone know what I did wrong?
PS: When I use View instead of Space I have the same result. Never used Space before, so I thought it might have to do something with that.
Solution thanks to Demand's option 4:
// Since we can't access Measured widths and heights before the View is completely loaded,
// we set up an Observer that will be called once the ListItem's layout is ready
ViewTreeObserver observer = view.getViewTreeObserver();
if(observer.isAlive()){
// In order to access the view in the onGlobalLayout, it needs to be final, so we create a final copy here
final View v = view;
observer.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
// This will be called once the layout is finished, prior to displaying it
#Override
public void onGlobalLayout() {
ImageView imageView = (ImageView) v.findViewById(R.id.image);
Space space = (Space) v.findViewById(R.id.filler_space);
// Change the width of the Filler-Space to match the Image and leave the height as is
space.setLayoutParams(new LinearLayout.LayoutParams(imageView.getMeasuredWidth(), space.getMeasuredHeight()));
}
});
}
You set width and height if your space to wrap_content. It's mean that space will have width as their children, but there is no children and you have width = 0. It's not about space, it's about layout measuring in android.
When you call your code:
Space space = (Space) view.findViewById(R.id.filler_space);
space.setLayoutParams(new LinearLayout.LayoutParams(
imageView.getMeasuredWidth(), space.getMeasuredHeight()));
Your imageView havn't measured yet and return width = 0. It will measured later before drawing. In getView() in adapter you only create views, but measuring, layout and drawing will be later.
You have several ways to fix it:
set width of your space in dp, instead of wrap_content.
using relative layout instead of three linear layouts.
Use TableLayout.
add GlobalTreeObserver and getMeasuredWidth() at right time.
Post your runnable to view's handler to get width after drawing.
I think the best ways is 2 and 3, because 4 and 5 will cause measuring several times.
I have used dynamic width & height for the TableLayout and i have used the android:layout_gravity="center" but still my tablelayout remains in left side. I don't find any reason for it. please go through my below code.
JAVA Code-:
Display display = getWindowManager().getDefaultDisplay();
int width=0;
int height=0;
if(display.getWidth()<=240 && display.getHeight()<=400)
{
width = 200;
height = 500;
}
else
{
width=250;
height=400;
}
TableLayout ab = (TableLayout) findViewById(R.id.tbl);
ab.setLayoutParams(new FrameLayout.LayoutParams(width,height));
XML Code-:
<TableLayout xmlns:tools="http://schemas.android.com/tools"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:stretchColumns="1"
android:id="#+id/tbl"
android:layout_gravity="center"
android:background="#ffffcc">
<TableRow>
<TextView
android:id="#+id/txt1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_span="2">
</TextView>
</TableRow>
<TableRow>
<TextView
android:id="#+id/txt2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_span="2">
</TextView>
</TableRow>
The two textview elements are aligned in the left margin. But i want it to be in the Center.
Please suggest me some good solution.!!!
Thanks.
Try giving
android:gravity="center"
in your textviews
I want to display 4 texts with images exactly like showed in this screenshot:
Notice the 4 texts at the buttom of the image, with the icons next to them.
My question is how do I do it, I mean, how do I attach an icon to each text field and display it symmetrically at the bottom of the page.
I want to position my texts with the icons exactly like this example.
Thanks for your help, it's a really great exercise for a newbie :)
Dvir
Use drawableLeft for this
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:drawableLeft="#drawable/icon_1"
android:gravity="center_vertical"
android:textStyle="bold"
android:textSize="24dip"
android:maxLines="1"
/>
OR
In java code
TextView textView = (TextView) findViewById(R.id.yourTV);
textView.setCompoundDrawablesWithIntrinsicBounds(R.drawable.icon_1, 0, 0, 0);
You can just use a TextView, and add for example android:drawableLeft="#drawable/your_icon"
Use left/right depending of where you want your icon.
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Text"
android:layout_weight="1"
android:drawableLeft="#drawable/icon"
android:gravity="center_horizontal"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Text"
android:layout_weight="1"
android:drawableLeft="#drawable/icon"
android:gravity="center_horizontal"/>
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Text"
android:layout_weight="1"
android:drawableLeft="#drawable/icon"
android:gravity="center_horizontal"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Text"
android:layout_weight="1"
android:drawableLeft="#drawable/icon"
android:gravity="center_horizontal"/>
</LinearLayout>
</LinearLayout>
Ideal approach to implement this would be:
textView.setCompoundDrawables(getDrawable(R.drawable.image), 15), null, null, null);
add below function to your code as well:
public Drawable getDrawable(int drawable, float form_factor) {
Drawable top = getApplicationContext().getResources().getDrawable(drawable);
top.setBounds(0, 0, (int)form_factor, (int)form_factor);
return top;
}
This way your can set/choose/resize your text-icons appropriately(by adjusting the value of form-factor) which is not possible when done through xml.
NOTE: I've written above function for square-drawables, for rectangular images we will have to do setBounds accordingly.
I'm trying (in vain) to add margins to my ListView items. I have tried adding margin values to my RelativeLayout below but no matter what I do all I seem to get is a 1px line between each item.
What I really would like is to have rounded corners on each item, a 1px black border and a 3-5px margin left, top, and right but right now I'll settle for just a margin around each item :-)
How do I achieve my goals? Just the margin for now... ;-)
Here's what I have:
UPDATE: I have updated the xml below removing main layout and fragment layout. I have also updated the ListView item layout to what I have now which is closer to what I want but still not perfect. Screenshot added as well
listview item layout xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingLeft="#dimen/matchMargin"
android:paddingRight="#dimen/matchMargin"
android:paddingTop="#dimen/matchMargin" >
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#cfcfcfcf" >
<include
android:id="#+id/matchKampstart"
layout="#layout/kampstart_layout" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/matchKampstart"
android:layout_marginTop="#dimen/belowKampstartMargin" >
<ImageView
android:id="#+id/tournamentImageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:layout_marginRight="2dp"
android:adjustViewBounds="true"
android:contentDescription="#string/tournamentImageViewContentDescription"
android:gravity="left"
android:src="#drawable/sofabold_launcher" />
<ImageView
android:id="#+id/homeTeamImageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:layout_marginRight="2dp"
android:adjustViewBounds="true"
android:contentDescription="#string/homeTeamImageViewContentDescription"
android:src="#drawable/sofabold_launcher" />
<TextView
android:id="#+id/homeTeam"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:layout_marginRight="2dp"
android:text="#string/home"
android:textSize="14sp"
android:textStyle="bold" />
<TextView
android:id="#+id/dash"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:layout_marginRight="2dp"
android:gravity="center"
android:text="#string/dash"
android:textSize="12sp"
android:textStyle="bold" />
<ImageView
android:id="#+id/awayTeamImageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:layout_marginRight="2dp"
android:adjustViewBounds="true"
android:contentDescription="#string/awayTeamImageViewContentDescription"
android:src="#drawable/sofabold_launcher" />
<TextView
android:id="#+id/awayTeam"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:gravity="center"
android:text="#string/away"
android:textSize="14sp"
android:textStyle="bold" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="#id/matchKampstart"
android:layout_marginTop="#dimen/belowKampstartMargin" >
<ImageView
android:id="#+id/tvChannelImageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="false"
android:contentDescription="#string/tvChannelImageViewContentDescription"
android:gravity="right"
android:src="#drawable/sofabold_launcher" />
</LinearLayout>
</RelativeLayout>
</RelativeLayout>
This gives me the following where you'll notice a very small line to the right and left for each item. That I would also like to get rid of.
I'm not great with layouts, but I have noticed in the past that ListView rows often ignore LayoutParams. I have no idea where this happens or if it's possible to override, I do know you can easily work around it by adding another layout:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="?android:attr/listPreferredItemHeight"
android:background="#990000ff" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginRight="10dp"
android:layout_marginTop="10dp"
android:background="#9900ff00"
android:paddingLeft="10dp" >
<TextView
android:id="#+id/text"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#99ff0000" />
</LinearLayout>
</LinearLayout>
Typically layouts that only have one child can be removed, but as you can see this one serves a purpose:
The outer-most layout is blue, the TextView is red, and the green is the extra layout that allows you to add some extra spacing. Notice the difference between padding (the green on the left) and margin (no green on the right). You have clearly stated that you want to use margins (android:layout_margin) but your code clearly uses padding (android:padding) so I included both.
A little late seeing this, but just add the following lines to your ListView xml element
android:divider="#00000000"
android:dividerHeight="10dp"
See the answer here for why. In short the child asks the parent, and the list view row uses AbsListView.LayoutParams, which doesn't include margins.
Why LinearLayout's margin is being ignored if used as ListView row view
In your adapter, catch your relative layout in getView(), then give a layout params ,
RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams)view.getLayoutParams();
params.setMargins(80, 0, 0, 0); //substitute parameters for left, top, right, bottom
YourRelativeLayoutInAdapter.setLayoutParams(params);
I suppose you have a ListView defined in an XML file somewhere, if so, you could add some padding to it, so that there will be some space between the edge of the screen and the ListView.
Example:
<ListView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="15dp"/>