Develop Reference

Hold a ImageView exactly in place XML

I have following problem, I want to add a ImageView (the Google Play button) to my dialog which stays in place, no matter which device the app is running on.
Here is what it should look like:
This is what it looks like on some devices:
Here is the XML:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/goProDialogImage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:scaleType="fitXY"
android:adjustViewBounds="true"
android:src="#drawable/goldversiondialog"/>
<ImageView
android:id="#+id/googleplaybutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="#+id/goProDialogImage"
android:layout_alignBottom="#+id/goProDialogImage"
android:adjustViewBounds="true"
android:scaleType="fitXY"
android:maxHeight="250dp"
android:maxWidth="250dp"
android:layout_marginRight="20dp"
android:layout_marginBottom="20dp"
android:src="#drawable/gpbutton" />
</RelativeLayout>
How can I tell the app to never put the Image above the golden veil?

Do this:
<LinearLayout
android:weightSum="1"
android:gravity="end"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/googleplaybutton"
android:layout_width="0dp"
android:layout_weight="0.5"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:src="#drawable/ic_logo" />
</LinearLayout>
I have removed some of your properties, the key point is that you need to use weightSum in LinearLayout and apply weight to your ImageView(I have given 0.5, you can change according to your need). Also, do not set android:scaleType to fitXY, keep the aspect ratio so the height will change according to the width.

Android UI using XML (Android and Xml)

I am tying to create a UI like the image below.
This is how it SHOULD look like: (Screen shot from my app using Nexsus 5):
And this is how it look like on a Nexsus S device (4 inch):
Someone have an idea why the diffrences happen? This is my XML code:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#2e2e2e"
tools:context=".MainActivity"
android:id="#+id/viewew">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:weightSum="9"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:layout_marginBottom="0dp"
android:layout_weight="8"
android:gravity="center_vertical"
>
<View
android:layout_width="0px"
android:layout_height="match_parent"
android:layout_weight="15" />
<Button
android:id="#+id/www"
android:layout_weight="2"
android:layout_width="90dp"
android:layout_height="90dp"
android:background="#drawable/www"
android:paddingLeft="10dp"
android:paddingRight="10dp"
/>
<View
android:layout_width="0px"
android:layout_height="match_parent"
android:layout_weight="15" />
<Button
android:id="#+id/www"
android:layout_weight="2"
android:layout_width="90dp"
android:layout_height="90dp"
android:background="#drawable/www"
android:paddingLeft="10dp"
android:paddingRight="10dp"
/>
<View
android:layout_width="0px"
android:layout_height="match_parent"
android:layout_weight="15" />
<Button
android:id="#+id/www"
android:layout_weight="2"
android:layout_width="90dp"
android:layout_height="90dp"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:background="#drawable/www"
/>
<View
android:layout_width="0px"
android:layout_height="match_parent"
android:layout_weight="15" />
</LinearLayout>
<View
android:id="#+id/idd"
android:layout_width="match_parent"
android:layout_height="400dp"
android:layout_alignParentBottom="true"
android:layout_weight="2"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="2"
android:layout_centerHorizontal="true"
android:text="Doesn't belong here?"
android:layout_alignParentBottom="true"
/>
</LinearLayout>
<include layout="#layout/buttons" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="2"
android:layout_centerHorizontal="true"
android:text=" here?"
android:paddingBottom="15dp"
android:layout_alignParentBottom="true"
android:textColor="#f7f7f7"
android:id="#+id/tDoesntBelongHere"
/>
<com.lorentzos.flingswipe.SwipeFlingAdapterView
android:id="#+id/frame"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:rotation_degrees="15.5"
android:layout_above="#+id/eee"
tools:context=".MyActivity" />
</RelativeLayout>

On android studio you have to set the screen size for different devices.
your buttons have this:
android:layout_width="90dp"
android:layout_height="90dp"
So whichever screen you are using the size will always be 90dp.
In android studio you can create more xml pages for same page: one for portrait, for landscape, ecc ecc and also one for small-big-xxl ecc screen.
Have a look at this link from android developer site.
Hope it help :)
EDIT:
At the moment i don't have Android studio in the pc i'm working on, so i try to explain a possible solution.
Instead of setting height and width, set margins:
You can anchor all from botside, adding in your TextView android:layout_alignParentBottom="true" (and a margin-bottom if you want). Then keep your view with a static height of 400dp like now, then anchor it to the top of the TextView by android:layout_above="#id/TextViewId (it doesn't have id, add it)
Now you have to do the same with your LinearLayout: use android:layout_above="#id/idd and removing the the static size. At this point you can just let your buttons to set height equals to the LinearLayout's height (obiouvsly you can set margin top-bot in buttons).
Sorry if my english is not that good, i hope u got the solution

ImageView on top of Button

I'm trying to put a small ImageView on top of a button, but somehow it stays under it. I don't understand why as this sort of layout work perfectly with other views.
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/background_white_clickable"
android:text="#string/book_now"
android:id="#+id/but_book_now"
/>
<ImageView
android:layout_width="35dp"
android:layout_height="35dp"
android:id="#+id/img_bookmark"
android:src="#drawable/ic_action_bookmark_full"
android:layout_marginRight="15dp"
android:layout_marginEnd="15dp"
android:layout_alignParentTop="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true" />
</RelativeLayout>
I've tried with different background for the button, but the image can be seen only when it is transparent. I also tried to replace the ImageView with a colored View, still doesn't work.
Any idea? Thx
EDIT:
There is a confusion in answers I get, I mean to make the ImageView on top of the Button in its Z-order, not y-axis.
EDIT 2 :
I don't want to use an image button, the image is just a "pin" on the button that will appear/disappear.
I don't want to use a drawable on the button, I need to place it where I want exactly.
Using FrameLayout instead of RelativeLayout doesn't change anything.
Using imgView.bringToFront() doesn't work.
EDIT 3 :
The problem doesn't appear on device before Lollipop. On KitKat, the layout works as intended.

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginTop="80dp" >
<Button
android:id="#+id/filter"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="7dp"
android:background="#0000FF"
android:gravity="center"
android:paddingBottom="25dp"
android:paddingTop="25dp"
android:text="Sort"
android:textColor="#FFFFFF" />
<ImageView
android:id="#+id/widget_title_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="top|right"
android:adjustViewBounds="true"
android:paddingTop="-10dp"
android:scaleType="fitStart"
android:src="#drawable/ic_launcher" />
</FrameLayout>
Try it,though I haven't tested it.

Try
findViewById(R.id.img_bookmark).bringToFront();

You need to set the button below the imageview so:
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/background_white_clickable"
android:text="#string/book_now
android:id="#+id/but_book_now"
android:layout_below="#+id/img_bookmark"/>
<ImageView
android:layout_width="35dp"
android:layout_height="35dp"
android:id="#+id/img_bookmark"
android:src="#drawable/ic_action_bookmark_full"
android:layout_marginRight="15dp"
android:layout_marginEnd="15dp"
android:layout_alignParentTop="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true" />
</RelativeLayout>
EDIT
I noticed now that you wanted an image ON TOP of a button not ABOVE so don't care to my code above and use ImageButton:
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageButton
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/background_white_clickable"
android:text="#string/book_now
android:id="#+id/but_book_now"
android:src="#drawable/ic_action_bookmark_full"/>
</RelativeLayout>

Sample code:
<RelativeLayout
android:id="#+id/relativeLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ImageView
android:id="#+id/img_bookmark"
android:layout_width="35dp"
android:layout_height="35dp"
android:layout_alignParentRight="true"
android:src="#drawable/ic_launcher" />
<Button
android:id="#+id/but_book_now"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_toLeftOf="#+id/img_bookmark"
android:text="Test" />
</RelativeLayout>
Note :
Edit the text and src, for your needs

If you want image view with button :
<Button
android:id="#+id/but_book_now"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:drawableTop="#drawable/ic_launcher"
android:background="#ff00ff"
android:text="This is button"
android:padding="10dp"
android:textColor="#ffff00"
/>
</RelativeLayout>
If you want image view without button :
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="vertical" >
<ImageView
android:id="#+id/but_book_now"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/ic_launcher"
android:text="This is button"
android:padding="10dp"
android:textColor="#ffff00"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#ff00ff"
android:text="This is button"
android:padding="10dp"
android:textColor="#ffff00"
/>
</LinearLayout>

You can define a RelativeLayout as a Button and add ClickEvents on it, add a child View with color or a child ImageView with a PNG, or whatever or both, to put images or color over it.
Example
<FrameLayout android:id="#+id/buttonTextFillColor"
android:layout_width="#dimen/mini_icon_width"
android:layout_height="#dimen/mini_icon_height"
android:background="#drawable/input_button_background"
android:clickable="true">
<View
android:id="#+id/colorTextFillColor"
android:layout_width="23dp"
android:layout_height="23dp"
android:background="#FFFFFF"
android:layout_gravity="center" />
<ImageView
android:layout_width="23dp"
android:layout_height="23dp"
android:src="#drawable/button_fill_text"
android:layout_gravity="center"/>
</FrameLayout>
You get a union of elements:
How will you see it?

please add the layout_below for Button attribute

How to make a RelativeLayout semi-transparent but not the activity

I want to make a RelativeLayout in side a RelativeLayout semi-transparent.
Its a item for the footer. which is always visible, but I just want to make it 50% transparent of a black color.
I Have tried to use #11000000 Alpha channel, but still dont work.
Thanks
<RelativeLayout 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:orientation="vertical"
tools:context="com.app.photoapp.MainActivity" >
<GridView
android:id="#+id/gridview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_above="#+id/ly_footer_text"
android:alwaysDrawnWithCache="true"
android:clipChildren="true"
android:columnWidth="100dp"
android:gravity="center_horizontal"
android:horizontalSpacing="2dp"
android:numColumns="3"
android:padding="0dp"
android:scrollingCache="true"
android:smoothScrollbar="true"
android:stretchMode="columnWidth"
android:verticalSpacing="2dp" />
<!-- Footer THIS LAYOUT TO MAKE SEMI-TRANSPARENT -->
<RelativeLayout
android:id="#+id/ly_footer_text"
android:layout_width="match_parent"
android:layout_height="40dp"
android:background="#11000000"
android:layout_alignParentBottom="true" >
<TextView
android:id="#+id/tv_footer_left"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="10dp"
android:text="#string/footer_sub_text"
android:textColor="#999999"
android:textSize="12sp" />
<TextView
android:id="#+id/tv_footer_right"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/tv_footer_left"
android:layout_alignBottom="#+id/tv_footer_left"
android:layout_alignParentRight="true"
android:layout_marginRight="10dp"
android:text="#string/footer_tnc"
android:textColor="#999999"
android:textSize="12sp" />
</RelativeLayout>
</RelativeLayout>

Set the background color to #AARRGGBB where AA is the alpha channel. For example you could use #00000000 for the color or the short method: #ARGB so that would be #0000 Using the shorthand notation the values are each just used twice where #264C would be the same as #226644CC ...http://developer.android.com/reference/android/graphics/Color.html

Try this one
android:background="#80000000"

try to use this code-
android:background="#50111111"
instead of this-
android:background="#11000000"

Android Layout with Images and Compatibility

I develop a photo album app. I would like to place photos on screen like the following layout :
For this purpose, I decided to place a vertical linear layout at outside of all. Then place RelativeLayouts for each row. In each RelativeLayouts in a row, I put two relative layouts to contain the ImageViews. In each RelativeLayout I size them with proper "dp" as I draw at the image above.
My question is, can it be the same view in different phones with different resolutions ? If so, what would be the proper approach to have the view that I show above ?
Thanks

Use linear layout completely and make sure you know what layout_weight does.
refer the following
http://developer.android.com/guide/topics/ui/declaring-layout.html#CommonLayouts
http://developer.android.com/guide/topics/ui/layout/linear.html#Weight

Try this...its only for 1 row, but you get the idea..this is inside vertical linear layout..
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<ImageView
android:id="#+id/imageView1"
android:layout_width="0dp"
android:layout_weight="1"
android:src="#drawable/ic_launcher"
android:layout_height="wrap_content" />
<LinearLayout
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="match_parent"
android:orientation="vertical"
>
<ImageView
android:id="#+id/imageView2"
android:layout_width="wrap_content"
android:layout_height="1dp"
android:src="#drawable/ic_launcher"
android:layout_weight="1"
android:layout_gravity="center_horizontal"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_weight="1" >
<ImageView
android:id="#+id/imageView3"
android:layout_width="0dp"
android:layout_weight="1"
android:src="#drawable/ic_launcher"
android:layout_height="wrap_content" />
<ImageView
android:id="#+id/imageView4"
android:layout_width="0dp"
android:layout_weight="1"
android:src="#drawable/ic_launcher"
android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
</LinearLayout>