How can I completely change the color of my preferenceActivity background? Please see my screenshot. On a tablet there is sort of a white border around the window background and listview background. I can't figure out how to change its color/drawable. I just need to make it transparent.
This is how I achieved the screenshot. This code is placed in the onCreate of the PreferenceActivity.
this.getListView().setBackgroundDrawable(this.getResources().getDrawable(R.drawable.splash_bg));
this.getWindow().setBackgroundDrawable(this.getResources().getDrawable(R.drawable.splash_bg));
Hopefully I will not have to get into any styles and I can just access it in code for simplicity's sake.
Okay so you need to set the layout to a custom one. The only requirement for the custom layout is to have a list view with id of android:id/list
Like this :
<?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="wrap_content"
android:minHeight="?android:attr/listPreferredItemHeight"
android:gravity="center_vertical"
android:background="#drawable/DRAWABLE HERE"
>
<ListView android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#android:id/list"
android:layout_marginLeft="50dp"
android:layout_marginRight="50dp"
/>
</LinearLayout>
Than in your onCreate of the PrefActivity:
this.setContentView(R.layout.pref_act);
Related
For the last two hour and a half i had been trying to do something really simple: change the padding in the Android's AutoCompleteTextView's popup (the one that shows the auto complete options).
i'm trying to do this because the item in my app has the height of the text (i'm not sure why), so i want to make it easier to click on. But every think i could find didn't work at all.
So i really would be glad if anyone could spot a light in this problem or give an alternative solution.
And just for the record, i'm using android studio, and i had removed the support API (since my min API is 16), so my app is using 100% native resorts only.
I just found a way to make it, i had to make a custom view layout with an textview already including the item's padding. Than i created a custom adapter with uses this layout.
The layout goes like this
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:singleLine="true"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ellipsize="marquee"
android:layout_margin="0dp"
android:paddingLeft="#dimen/thin_margin"
android:paddingRight="#dimen/thin_margin"
android:paddingTop="#dimen/list_1line_item_padding"
android:paddingBottom="#dimen/list_1line_item_padding"/>
And in the custom adapter just used it in the getView method
itemView = LayoutInflater.from(ctx).inflate(R.layout.list_1line_item, null);
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginTop="20dp"
>
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingTop="#dimen/dp_15"
android:paddingBottom="#dimen/dp_15"
android:id="#+id/parentid">
<AutoCompleteTextView
android:id="#+id/address_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/light_gray_bg"
android:drawableRight="#drawable/icon_search_smaller"
android:gravity="center_vertical"
android:hint="Start typing location"
android:inputType="textCapWords"
android:popupBackground="#drawable/auto_location_popup_bg"
android:textColor="#color/black"
android:textColorHint="#color/dark_grey"
android:textSize="16sp"
android:visibility="visible"
android:dropDownWidth="wrap_content"
android:dropDownAnchor="#+id/parentid">/>
<requestFocus />
</RelativeLayout>
</RelativeLayout>
define another relative layout wrapping only the autocomplete textview and the button. look at this link
Android layout padding is ignored by dropdown
I have an activity Which has Text to show then Some content under that then a list view.
While some content could be a picture, relative layout, Video control, or a linear layout. Depending upon the data it got from previous activity.
Is that possible to do that or I have to make separate layouts for all items?
You need a layout like this:
<?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" >
<TextView
android:id="#+id/textview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="TextView" />
<FrameLayout
android:id="#+id/flSpecialContainer"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
</FrameLayout>
<ListView
android:id="#+id/listView1"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
</ListView>
</LinearLayout>
You can add any View you want in code to the FrameLayout (flSpecialContainer) based on what you need.
you can create all possible items in one layout and set visible and gone them depend on data you receive
in this case you don't need create them in code , and can preview activity layout in design mode.
So I have a list of images that come from the web, I don't know which color are they and I want to place a text over the ImageView.
My idea is to place the ImageView, an image overlay with transparency gradient over that ImageView and the text above it. I want to mimic this behaviour:
Is there anyway to do this via XML?
When you write the XML for your list items which get inflated in the getView(...) of whatever ListAdapter you've written you can surely do this.
Something like this for the list item:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:layout_width="320dp"
android:layout_height="240dp"
android:background="#ACACAC"/>
<RelativeLayout
android:layout_width="320dp"
android:layout_height="240dp"
android:background="#drawable/gradient">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Here is your text"
android:textColor="#000000"
android:layout_alignParentBottom="true"/>
</RelativeLayout>
</RelativeLayout>
Then you create that drawable/gradient. For that you can recycle the answer from here.
Thanks to adityajones I managed to get there :)
So although this is my right answer, I'll mark his as the correct one!
<?xml version="1.0" encoding="utf-8"?>
<ImageView
android:layout_width="fill_parent"
android:layout_height="200dp"
android:scaleType="centerCrop"
android:src="#drawable/image" />
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="200dp"
android:background="#drawable/gradient_image" >
<TextView
android:id="#+id/text"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_margin="6dp"
android:layout_marginBottom="18dp"
android:shadowColor="#000"
android:shadowRadius="7.0"
android:text="This is some random text"
android:textColor="#color/white"
android:textSize="22sp" />
</RelativeLayout>
I'd use a FrameLayout or RelativeLayout. The first View you add to either should be the background ImageView, then obviously you'll need some TextViews and Other ImageViews [or Buttons, or ImageButtons, etc]
Seems like a reasonable layout: a background image, and then one additional view in each corner.
For the gradient, you'll probably want a separate Layout/View at the bottom with a gradient drawable as the background, although I can imagine you might be able to get away with setting the background of one of your TextViews as the gradient.
You do not have to use a gradient drawable file or set it in your xml..
you can do this pragmatically using GradientDrawable Class as explained in this related Question (Create a radial gradient programmatically) then set it as a background for a layout that covers your ImageView, this gives you ability to use different colors and orientations
I have the following template
<?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="wrap_content"
android:orientation="vertical"
android:background="#drawable/borders" >
<RelativeLayout
android:id="#+id/layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="5dp">
<ImageView
android:id="#+id/category_starred_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/rating_not_important"
android:contentDescription="#string/app_name" />
<TextView
android:id="#+id/category_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_toRightOf="#id/category_starred_icon"
android:textIsSelectable="false"
android:textSize="18sp"
android:paddingLeft="5dp"
android:paddingTop="5dp"
android:paddingRight="5dp"
android:textColor="#android:color/white"
android:hint="#string/category" />
</RelativeLayout>
</LinearLayout>
i get a warning This RelativeLayout layout or its LinearLayout parent is possibly useless; transfer the background
attribute to the other view, i want solve it, but i have the follow problem i have a border in the LinearLayout is like a drop shadow but when i change the background color in my code
mLayout.setBackgroundColor(Color.paseColor(mColorString));
i lost the border, how i can solve the warning witout lose the border, the main problem is the background colors are dynamically
Have a look at this: http://developer.android.com/guide/topics/resources/drawable-resource.html#LayerList
This is an drawable that organizes other drawables in a layer list (one on top of the other). With it, you can use other drawables, like shape, to define the borders and the background the way you want.
I can't make a complete answer now, but if you search for this, I'm sure you can do it. When I have more time, I may come back to help you, if you haven't found out how to solve this yet.
Hi I cant figure for the life of me to change the background of this to white.
CODE:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#FFFFFF"
>
<ExpandableListView
android:id="#android:id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#FFFFFF"
>
</ExpandableListView>
</LinearLayout>
Make the black here white
Probably going have to change the font color to black.
Can you post a screenshot of how it looks now? And perhaps a quick description of how you'd like it to look?
Does it look like you want it to but mess up when you go to scroll the list?
Check out this page for some useful info on using listviews with custom backgrounds: http://developer.android.com/resources/articles/listview-backgrounds.html
try setting the cacheColorHint:"00000000"