I need a screen that is filled with an image as background and three buttons floating over the image. I created this fine in xml and in vertical orientation it does what I want. However in landscape it doesnt so I have tried to add a scrollview and am getting very confused as to how to combine these elements correctly. After various tries I reached the stage shown below
<?xml version="1.0" encoding="utf-8"?>
<ScrollView android:layout_height="fill_parent"
android:layout_width="fill_parent" android:id="#+id/home_container"
xmlns:android="http://schemas.android.com/apk/res/android">
<ImageView android:src="#drawable/alert"
android:layout_height="fill_parent" android:layout_width="fill_parent"
android:scaleType="fitCenter" android:clickable="true"
android:enabled="true" />
<LinearLayout android:layout_width="fill_parent"
android:paddingBottom="25px" android:paddingLeft="25px"
android:orientation="vertical" android:paddingTop="90px" android:id="#+id/toplinear"
android:layout_height="fill_parent" android:paddingRight="25px"
android:gravity="top">
<Button android:layout_width="fill_parent" android:textSize="20dp"
android:id="#+id/startprogrambutton" android:paddingBottom="12dp"
android:text="#string/text1" android:layout_height="wrap_content"
android:paddingTop="12dp"></Button>
<Button android:layout_width="fill_parent" android:textSize="20dp"
android:id="#+id/button1" android:paddingBottom="12dp"
android:layout_marginTop="10dp" android:background="#drawable/webview_buttons"
android:text="#string/text2" android:layout_height="wrap_content"
android:paddingTop="12dp"></Button>
<Button android:layout_width="fill_parent" android:textSize="20dp"
android:id="#+id/button2" android:paddingBottom="12dp"
android:layout_marginTop="10dp" android:background="#drawable/webview_buttons"
android:text="#string/text3" android:layout_height="wrap_content"
android:paddingTop="12dp"></Button>
<Button android:layout_width="fill_parent" android:textSize="20dp"
android:id="#+id/button3" android:paddingBottom="12dp"
android:layout_marginTop="10dp" android:background="#drawable/webview_buttons"
android:text="#string/text4" android:layout_height="wrap_content"
android:paddingTop="12dp"></Button>
</LinearLayout>
Now it errors with scrollview can only contain one child. Is there some way to rearrange so that I can have my image and the floating buttons all scroll together?
put both ImageView and LinearLayout in another Vertical LinearLayout. This solves your scrollView child problem.
<ScrollView>
<LinearLayout>
<Imageview />
<LinearLayout />
</LinearLayout>
</ScrollView>
Why don't you give image as background for linearLayout with buttons, it will serve your purpose.
In case you want to scroll only your buttons and not the ImageView you can try this:
<LinearLayout>
<Imageview />
<ScrollView>
<LinearLayout>
<Button />
<Button />
<Button />
<Button />
</LinearLayout>
</ScrollView>
</LinearLayout>
Hope this helps!
Just so you know, you're not limited to trying to find a single solution for both orientations. You can have 2 separate layouts for both orientations by specifying separate layout xml files in a land & port directory. See the official documentation here:
http://developer.android.com/guide/practices/screens_support.html
Related
I'm searching for a solution to set up multiple rows in a scrollview.
I have 15 buttons (3*5) and want to scroll to the right so there are another 15 buttons.
What I already got: all buttons are in one huge row ( at least, scrolling iself worked ).
Then I tried to set the HorizontalScrollView on the highest layer (line #1 in XML) and after that a LinearLayout that contains 3 further LinearLayouts so the tree looks like this:
<HorizontalScrollView
<LinearLayout
<LinearLayout
(buttonABCDEF)
</LinearLayout>
<LinearLayout
(button01234)
</LinearLayout>
<LinearLayout
(button56789)
</LinearLayout>
</LinearLayout>
</HorizontalScrollView>
What I get then is a (~80x80) rectangle (the linear layout in the ScrollView) that shows a text (the first view in my layout) and a button (buttonA - the first one) that is so stemmed (by whatever) that every character is written into a new line. (The amount of letters= amount of lines= button height). This isn't scrollable at all.
I'm trying to post only the code that is relevant. Note: that android:layout stuff is not important for you since it is not working in a linear layout:
<HorizontalScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"
android:screenOrientation="landscape"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/horizontalScrollView1"
tools:context=".MainActivity"
android:background="#android:color/black"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation='vertical' >
android:layout_width="9dp"
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent" >
android:layout_width="9dp"
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginTop="0dp"
android:textColor="#android:color/white"
android:text="text"
android:textAppearance="?android:attr/textAppearanceMedium" />
<Button
android:id="#+id/buttonA"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="#+id/buttonB"
android:layout_toRightOf="#+id/textView1"
android:width="70dp"
android:text="A" />
<Button
android:id="#+id/buttonE"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/buttonD"
android:layout_alignBottom="#+id/buttonD"
android:layout_toRightOf="#+id/buttonD"
android:width="70dp"
android:text="B" />
<Button
android:id="#+id/buttonF"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/buttonE"
android:layout_alignBottom="#+id/buttonE"
android:layout_toRightOf="#+id/buttonE"
android:text="C" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<Button
android:id="#+id/button0"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="15dp"
android:background="#drawable/eins"
android:text="0" />
/LinearLayout>
/LinearLayout>
</HorizontalScrollView>
Thanks a lot for you help.
I fixed it making the layout completely new. Even that of course not the best way, it seemed faster than searching for errors
I am developing an application, where I need to put two buttons at the bottom regardless of any screen resolution.
What will be best to implement this?
Use a RelativeLayout with a LinearLayout at the bottom. Just one way to do it , and use layout_weight to set buttons with equal size.
Updated
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true" >
<Button
android:id="#+id/idBtn1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Button 1" />
<Button
android:id="#+id/idBtn2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Button 2" />
</LinearLayout>
set those buttons inside an new layout ( Relative / Linear - respective to your layout view ) and give android:layout_alignParentBottom="true"
Try this way to use footer for common use:
First create one footer.xml file :
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<LinearLayout
android:id="#id/idFooterMenu"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true">
<Button
android:id="#+id/footerBtn1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Button1" />
<Button
android:id="#+id/footerBtn2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Button2" />
</LinearLayout>
</RelativeLayout>
And then you can use this footer.xml file in any other screen without repeating the code again.
<include layout="#layout/footer" />
Thanks.
I have been working on an app for my school recently and wanted to clean it up a bit before possibly publishing it. On the scheduling portion of the app, I have 5 buttons that perform actions on a ListView that is also on the screen at the same time. However, I have the issue when I have around 6 or more events on the screen as once the list view takes over the screen and pushes the buttons off the screen, making it so that I cannot delete the events, make new ones, and so on.
I tried setting the list view to a static size (400px) which worked for normal screen orientation, but if the phone is set to landscape view you cannot see the buttons either. With my current code it would appear to work in the XML viewer but in practice is not the case.
This is the code without the static size setting:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#551A8B"
android:textColor="#FFD700"
>
<Button android:text="#string/New"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:id="#+id/button3">
</Button>
<Button android:text="#string/Edit"
android:id="#+id/button4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toRightOf="#id/button3"
android:layout_alignTop="#id/button3">
</Button>
<Button android:text="#string/delete"
android:id="#+id/button5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toRightOf="#id/button4"
android:layout_alignTop="#id/button4">
</Button>
<Button android:layout_height="wrap_content"
android:id="#+id/button7"
android:layout_width="wrap_content"
android:text="#string/Previousweek"
android:layout_below="#id/button3">
</Button>
<Button android:layout_height="wrap_content"
android:id="#+id/button6"
android:layout_width="wrap_content"
android:text="#string/Next"
android:layout_below = "#id/button3"
android:layout_toRightOf = "#id/button7">
</Button>
<ListView android:id="#+id/listView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:textColor="#FFD700"
android:layout_below="#id/button7"
android:textSize="10sp" >
</ListView>
</RelativeLayout>
The XML viewer for this code is:
Which would lead me to believe it would work fine. I tested it on my emulator and got the following result after entering a bunch of silly events however:
This result is consistent with multiple versions of the emulator.
How I can fix this problem without using static size constraints that cause landscape orientation issues?
Separate the buttons into a separate RelativeLayout and enclose this and the ListView in a vertical LinearLayout.
Then:
<LinearLayout android:id="#+id/linearLayout"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<RelativeLayout [...]
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<!-- Your buttons -->
</RelativeLayout>
<ListView android:id="#+id/listView1"
android:layout_width="fill_parent"
android:layout_height="0dip"
android:layout_weight="1" />
</LinearLayout
The key point here is the height and weight on the ListView. This means that it fills the remaining space in the LinearLayout after space has been correctly allocated for the buttons.
Add a android:weigth in your listView tag and set the android:weigth value to 1. This will work when your list view height and width is set to fill_parent and your list view is covering entire layout. So try it, it will work.
One simple solution would be to separate the buttons in their own relative layout and put the whole thing in a linear layout, eg:
<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="#551A8B"
android:textColor="#FFD700">
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#551A8B"
android:textColor="#FFD700">
<!-- your buttons -->
</RelativeLayout>
<ListView
android:id="#+id/listView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:textColor="#FFD700"
android:layout_below="#id/button7"
android:textSize="10sp">
</ListView>
</LinearLayout>
Use a vertical LinearLayout with two rows of Buttons (each row as a LinearLayout), then give the ListView a layout_weight value of "1". In fact, use layout_weight to clean up the size of your buttons too.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<Button android:text="#string/New"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_weight="1"
android:id="#+id/button3" />
<Button android:text="#string/Edit"
android:id="#+id/button4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" />
<Button android:text="#string/Delete"
android:id="#+id/button5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" />
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<Button android:layout_height="wrap_content"
android:id="#+id/button7"
android:layout_width="wrap_content"
android:layout_weight="1"
android:text="#string/Previousweek" />
<Button android:layout_height="wrap_content"
android:id="#+id/button6"
android:layout_width="wrap_content"
android:layout_weight="1"
android:text="#string/Next" />
</LinearLayout>
<ListView android:id="#+id/listView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:textColor="#FFD700"
android:textSize="10sp" >
</ListView>
How do I stop my view from filling the entire screen and not showing my buttons at the bottom of the screen?
<?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">
<com.vig.comix.ImageZoomView
android:id="#+id/zoomview"
android:layout_width="fill_parent"
android:layout_height="wrap_content" android:layout_alignParentTop="true" />
<LinearLayout android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content" android:layout_below="#+id/zoomview" android:layout_alignParentBottom="true">
<ImageButton android:id="#+id/btnPrev"
android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="#android:drawable/ic_media_rew"
android:background="#null"
android:layout_weight="1"
android:width="0px" />
<ImageButton android:id="#+id/btnNext"
android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="#android:drawable/ic_media_ff"
android:background="#null"
android:layout_weight="1"
android:width="0px" />
<ImageButton android:id="#+id/btnMove"
android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="#android:drawable/btn_star"
android:background="#null"
android:layout_weight="1"
android:width="0px" />
<ImageButton android:id="#+id/btnDelete"
android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="#android:drawable/ic_menu_delete"
android:background="#null"
android:layout_weight="1"
android:width="0px" />
</LinearLayout>
</RelativeLayout>
When I change my code and put the buttons at the top, it works fine. I have tried relative layouts, linear layouts, lauout weights, ...
What am I doing wrong?
RelativeLayout can be tricky to work with. I try to stick with FrameLayout and LinearLayout. Here is a sketch of the layout I would use in your case:
<LinearLayout orientation="vertical">
<ImageZoomView layout_weight="1" layout_height="wrap_content">
<LinearLayout orientation="horizontal" layout_height="wrap_content">
... buttons ...
</LinearLayout>
</LinearLayout>
Heights and widths are fill_parent when not mentioned. The layout_weight attribute on the ImageZoomView will cause it to expand as far as it can without squishing your bottom buttons.
Instead of putting android:layout_below in your LinearLayout. Try removing that and put
android:layout_above="#+id/myLinearLayout"
inside your ImageZoomView. Of course giving your LinearLayout the same id.
Perhaps the layout_weight is causing issues? Also it doesn't seem like you're give the items an object to be positioned relative to?
Change this:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
to this:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
I'm just beginning Android and have gotten myself stuck. I've made a simple app/view. The idea is draw a line-maze in the top, with motion buttons on the bottom. My app only draws an x with a couple lines in the frame, but that works. The problem is that my buttons are being drawn too far down, and are clipped in height.
I assume the problem is all in my layout xml:
<?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">
<FrameLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1" >
<none.maze.MazeView
android:id="#+id/maze"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<TextView
android:id="#+id/text"
android:text="#string/maze_layout_text_text"
android:visibility="visible"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:gravity="center_horizontal"
android:textColor="#ff8888ff"
android:textSize="24sp"/>
</RelativeLayout>
</FrameLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1" >
<Button
android:id="#+id/left"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Left"
android:layout_weight="1"
/>
<Button
android:id="#+id/forward"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Forward"
android:layout_weight="1"
/>
<Button
android:id="#+id/right"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Right"
android:layout_weight="1"
/>
</LinearLayout>
</LinearLayout>
I think you shouldn't use layout_height="fill_parent" and layout_weight at the same time. Try to set layout_height="0dip" and layout_weight="1" for the FrameLayout and layout_height="wrap_content" for the lower LinearLayout. The lower LinearLayout mustn't have the layout_weight attribute.
Use Hierarchy Viewer to debug your layout. Its pretty cool.
Your entire layout is just way too bloated and ineffective. You use way too many ViewGroups. I recommend reading about RelativeLayouts and especially the entire Layout Tricks series.