Develop Reference

MaterialDesignLibrary FloatButton

I'm updating an old existing app to be 4+ only and am trying to introduce a flavour of Material Design for < Lollipop. To that end, I am using MaterialDesignLibrary to add a few elements - in particular, the floating button.
The floating button displays OK, along with its animation, but I cannot get its bottom position displaying correctly.
Despite the recommendation that the component should be put in the right-bottom of the screen, I am trying to put the component in the right-bottom of my container wrapper... The right positioning works ok, but the bottom positioning seems to take from the wrong element.
Here is my xml for the section in the screen:
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="20dip"
android:layout_marginRight="20dip"
android:layout_marginTop="10dip" >
<RelativeLayout
android:id="#+id/llFeelingContainer"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/light_background"
android:baselineAligned="true"
android:orientation="vertical" >
<TextView
android:id="#+id/tvFeelingTitle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingBottom="3dip"
android:paddingLeft="5dip"
android:textSize="16sp" />
<View
android:id="#+id/vSeparatorTop"
android:layout_width="match_parent"
android:layout_height="1dip"
android:layout_below="#id/tvFeelingTitle"
android:background="#color/material_lightgreen_100" />
<LinearLayout
android:id="#+id/llCircleContentHolder"
android:layout_width="match_parent"
android:layout_height="100dp"
android:layout_below="#id/vSeparatorTop"
android:baselineAligned="false"
android:orientation="horizontal"
android:paddingBottom="5dip"
android:paddingTop="3dip" >
<LinearLayout
android:layout_width="0dip"
android:layout_height="fill_parent"
android:layout_marginRight="5dp"
android:layout_weight="1"
android:orientation="vertical" >
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="4dp"
android:gravity="center"
android:text="pain"
android:textSize="14sp"
android:textStyle="bold" />
<com.app.prohealth.extras.CircleDisplay
android:id="#+id/circlePain"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/circle_0"
android:gravity="center" />
</LinearLayout>
<LinearLayout
android:layout_width="0dip"
android:layout_height="fill_parent"
android:layout_marginRight="5dp"
android:layout_weight="1"
android:orientation="vertical" >
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="4dp"
android:gravity="center"
android:text="energy"
android:textSize="14sp"
android:textStyle="bold" />
<com.app.prohealth.extras.CircleDisplay
android:id="#+id/circleMood"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/circle_0"
android:gravity="center" />
</LinearLayout>
<LinearLayout
android:layout_width="0dip"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="vertical" >
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="4dp"
android:gravity="center"
android:text="mood"
android:textSize="14sp"
android:textStyle="bold" />
<com.app.prohealth.extras.CircleDisplay
android:id="#+id/circleEnergy"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/circle_0"
android:gravity="center" />
</LinearLayout>
</LinearLayout>
<View
android:id="#+id/vSeparatorBottom"
android:layout_width="match_parent"
android:layout_height="1dip"
android:layout_below="#id/llCircleContentHolder"
android:background="#color/material_lightgreen_100" />
<TextView
android:id="#+id/tvFeelingSubTitle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/vSeparatorBottom"
android:paddingBottom="3dip"
android:paddingLeft="5dip"
android:text="How are you feeling now?"
android:textSize="16sp" />
</RelativeLayout>
<com.gc.materialdesign.views.ButtonFloat
android:id="#+id/buttonFloat"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|right"
android:layout_marginTop="20dp"
android:background="#1E88E5"
materialdesign:animate="true"
materialdesign:iconDrawable="#drawable/fab_ic_add" />
</FrameLayout>
Here is a shot of where the Floating Button appears, and where it should appear:
You'll see in the code that I have tried negative margins and padding, but nothing I've tried has had any effect.
The Floating Button should appear aligned with the bottom of tvFeelingSubTitle; what has gone wrong?
UPDATE
The suggestion from mistwalker did work, in as much as the button now aligns itself to the bottom. However, it expands the height of the bottom container to match the height of the button:
I tried a number of different variations on the suggestion, which either squashed the button to fit a fixed height container, or overwrote the content completely.
The layout I am wanting to create is more like this:
Maybe this isn't possible and I'm wasting my time and yours...
What do you think?

Try putting
android:layout_below="#id/vSeparatorBottom"
android:align_baseline=#id/tvFeelingSubTitle
android:alignParentRight="true"
and remove the margin attributes plus the alignParentBottom one.
That should do it.
ADD:
About your second question - You are seeing that because your floating action button(FAB) is INSIDE your RelativeLayout.
Instead have FrameLayout as the outermost parent and the RelativeLayout (minus the FAB) and FAB as siblings.
Then adjust the style on the FAB to sit in the bottom right corner of your FrameLayout with layout_gravity=bottom|right and any margins you may want to add.

Problems with LinearLayout, views aren't resembling the preview in Graphical Layout on device

So I'm having a problem that is driving me crazy. Knowing the purpose of my app isn't important/relevant so I'll just paste my code from the xml file. The layout is a RelativeLayout, but the problem I'm having is inside of this LinearLayout.
Code:
<?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"
android:orientation="vertical"
android:background="#drawable/background_orange"
android:id="#+id/rel_layout" >
<RelativeLayout
android:id="#+id/layout_1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentTop="false"
android:layout_centerHorizontal="true">
<ImageView
android:id="#+id/component_1"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:layout_centerHorizontal="true"
android:layout_alignParentBottom="true"
android:src="#drawable/source1"
/>
<ImageView
android:id="#+id/component_2"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:layout_above="#id/component_1"
android:src="#drawable/source2"
android:layout_alignRight="#id/component_1"
android:layout_marginRight="-50dip"
android:layout_marginBottom="-25dip"
/>
</RelativeLayout>
<LinearLayout
android:id="#+id/problemIsHere"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:orientation="horizontal"
>
<EditText
android:id="#+id/edit_text"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="1"
android:hint="What&apos;s your question?"
android:imeOptions="actionDone"
android:inputType="textCapSentences|textAutoComplete"
android:textSize="25sp"
android:layout_gravity="left"
android:textStyle="bold" />
<ImageButton
android:id="#+id/image_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="5dip"
android:layout_weight="0"
android:layout_gravity="right"
android:background="#drawable/source3"
/>
</LinearLayout>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_below="#id/problemIsHere"
android:gravity="center"
>
<ImageView
android:id="#+id/image_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/source4"
android:onClick="computeUserInput" />
<ImageButton
android:id="#+id/image_button0"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toRightOf="#id/image_view"
android:layout_alignTop="#id/image_view"
android:layout_marginLeft="-2dip"
android:background="#drawable/voice_recognition_touse"
/>
</RelativeLayout>
Again, this is nested inside of the parent, RelativeLayout. In the preview, when clicking on the "Graphical Layout" tab, this looks like exactly what I want; EditText to the left of a small ImageButton, with correct proportions and margins. However, when I run this on my device, the LinearLayout is REVERSED, meaning now that the EditText is to the RIGHT of the ImageButton. The proportions and margins are still accurate though. Does anyone know what is going wrong here?
Note: I've already cleaned and refreshed my project; this was ineffective. I've also tried removing the layout_gravity attributes, and that did nothing.
Thanks

adding elements to scrollview using java when there is more then 1 child

I am trying to add elements to my scrollview,
this scroll view has a vertical linear layout inside of it.
(i added another linear layout - horizontl, inside that will manage 2 textviews and an image according to the attributes i assigned them),
i am trying to add elements of this inner layout to my scroll view (id=insideLineLayout)
(each element added to scrollview will contain these 2 texts and an image)
because of the fact scrollview can only have 1 child i am unable to do this.
would appreciate some help, nothing seems to be working here.
Thanks.
my current xml code:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/searchScreenOuterLinearLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<TextView
android:id="#+id/catagoryselectedText"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="70dp"
android:text="selected catagory"
android:textSize="20dp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:layout_marginTop="12dp"
android:orientation="horizontal" >
<EditText
android:id="#+id/searchText"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp" />
<ImageButton
android:id="#+id/searchButton"
android:layout_width="50dp"
android:layout_height="40dp"
android:background="#drawable/search_icon" />
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:layout_marginRight="10dp"
android:orientation="horizontal" >
<TextView
android:id="#+id/radiusText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:paddingTop="5dp"
android:text="Search Radius"
android:textAppearance="?android:attr/textAppearanceMedium" />
<SeekBar
android:id="#+id/radiusBar"
android:layout_width="140dp"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp" />
</LinearLayout>
<ScrollView
android:id="#+id/searchScrollView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:id="#+id/searchScrollViewLinear"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:paddingTop="10dp" >
<LinearLayout
android:id="#+id/insideLineLayout"
android:layout_width="fill_parent"
android:layout_height="30dp"
android:orientation="horizontal"
android:weightSum="100"
>
<TextView
android:id="#+id/linesPrice"
android:layout_weight="20"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:text="tmp1"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="#+id/linesInfo"
android:layout_weight="60"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:paddingLeft="15dp"
android:paddingRight="15dp"
android:text="tmp2"
android:textAppearance="?android:attr/textAppearanceMedium" />
<ImageView
android:id="#+id/imageInfo"
android:layout_width="40dp"
android:layout_height="match_parent"
android:background="#drawable/tv_icon" />
</LinearLayout>
</LinearLayout>
</ScrollView>
</LinearLayout>

Consider how long your list can get as ListView has been optimized in many ways which a regular scroll view is not. If you have too many elements you might start get out of memory exceptions.
In order to dynamically add views to a ScrollView you first need to get the container view inside the ScrollView (most likely a LinearLayout), then you simply do following for each view you add:
View view = inflater.inflate(R.layout.view_to_add, container, false); // this is used if you create from xml, if you make it in code you'd use the regular constructor.
// update the view content (view.findViewById(); etc.)
container.addView(view);

how to do this for all emulators

<RelativeLayout
android:id="#+id/relativeLayout1"
android:layout_width="fill_parent"
android:layout_height="365dp"
android:layout_margin="10dp"
android:background="#drawable/round_border" >
<RelativeLayout
android:id="#+id/relativeLayout2"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageButton
android:id="#+id/contactimg"
style="#style/CodeFont"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_marginBottom="10dp"
android:layout_marginLeft="20dp"
android:layout_marginTop="20dp"
android:background="#drawable/round_border_imageview"
android:maxHeight="75dp"
android:maxWidth="75dp"
android:padding="2dp"
android:src="#drawable/icon"
android:textSize="15dp" >
</ImageButton>
</RelativeLayout>
<RelativeLayout
android:id="#+id/relativeLayout4"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_below="#+id/relativeLayout2">
<LinearLayout
android:id="#+id/linearLayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_margin="20dp"
android:weightSum="1"
android:background="#drawable/round_border">
<TextView
android:id="#+id/TextView03"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="Textttt"
android:padding="10dp" />
</LinearLayout>
</RelativeLayout>
</RelativeLayout>
<RelativeLayout
android:id="#+id/relativeLayout5"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:layout_marginLeft="15dp"
android:layout_marginRight="15dp"
android:layout_marginTop="1dp"
android:layout_below="#+id/relativeLayout1"
>
<Button
android:id="#+id/replaymassegebutton"
android:layout_width="80dp"
android:layout_height="40dp"
android:layout_alignParentLeft="true"
android:layout_alignParentBottom="true"
android:layout_marginLeft="10dp"
android:background="#drawable/button_indicator"
android:text="Reply"
android:textColor="#color/gray2" >
</Button>
</RelativeLayout>
In HVGA emulator it'is worded fine. but in another emulator it is not. As you can see I put height=365dp,(I have to change height but I don't know how, 365dp works only in HVGA mode) what should I do here so it work for all emulator. I tried wrap_content and fill_parrent but when I set this paramteters the buttons gone (which are in another layout). I also tried this way android:layout_weight="1" android:layout_height="0dp". but no result here. Could you give me another solution

Better have parent layout as relative.
there you can put buttons always at bottom- by setting android:layout_alignParentBottom="true" in your property of button [or buttons manager in case there are more than one buttons]...
For the remaining screen you may have to use LinearLayout there, use it as an immidiate child and arrange your original view there.... make it android:layout_alignParentTop="true" and put your buttons view below it... by adding this android:layout_below= to button view.. this will make your linear layout to acquire all remaining space that has not taken by buttons.... add scroll view as immediate child of linear layout in case of smaller screens...
and you have least worries about multiple screens....
Enjoy

Problems with layout_height used inside RelativeLayout in android 1.5

This is my layout for an image capture program in android
<?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">
<SurfaceView android:id="#+id/surface_camera"
android:layout_width="fill_parent" android:layout_height="420px">
</SurfaceView>
<RelativeLayout android:layout_width="fill_parent"
android:layout_alignParentBottom="true" android:id="#+id/beforeClick"
android:layout_height="wrap_content" android:background="#color/clickPanelBK"
android:paddingTop="6dp" android:paddingBottom="6dp">
<Button android:gravity="center" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:id="#+id/capture_image_goback_btn"
android:background="#drawable/generalbutton" android:text="#string/back" />
<Button android:gravity="center"
android:layout_centerHorizontal="true" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:id="#+id/capture_image_btn"
android:background="#drawable/clickbutton" />
</RelativeLayout>
<RelativeLayout android:layout_width="fill_parent"
android:layout_alignParentBottom="true" android:id="#+id/afterClick"
android:layout_height="wrap_content" android:background="#color/clickPanelBK"
android:paddingTop="6dp" android:paddingBottom="6dp">
<Button android:gravity="center" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:id="#+id/img_retake"
android:background="#drawable/generalbutton" android:text="#string/retake" />
<Button android:gravity="center"
android:layout_alignParentRight="true" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:id="#+id/img_save"
android:text="#string/saveImg" android:background="#drawable/generalbutton" />
</RelativeLayout>
</RelativeLayout>
The last 2 relative layouts are swappable and are aligned fine. Only one of them appear at a time and is changed on a button click. Anyway, The problem here is, I have to mention the layout_height of surface view in px or dp. If I give layout_height as fill_parent, the view appears very small, 35% of width and height. Can anyone please give me a solution ?

RelativeLayout had many bugs in 1.5 :(