Develop Reference

Android button elevation shadow not working

I am trying to make a button that has a shadow using elevation with a background image being my sign in with gmail png. The button is contained within a relative layout. The elevation won't show no matter what I try to do. I tried solutions from other forum questions and none worked.
Here is my code for the button
<Button
android:id="#+id/google"
android:layout_width="270dp"
android:layout_height="38dp"
android:layout_marginTop="30dp"
android:layout_centerHorizontal="true"
android:background="#drawable/google"
android:elevation="10dp"
android:layout_below="#id/slogan"/>
The google drawable is a png image that I exported from Adobe XD.
Could someone please give me a pointer on what I am doing wrong? Thanks.
Additionally, I realize that if I set the background of the button to android:color/white the shadow appears. So I think the issue is with the png drawable? Does elevation not work with png images? Is there a workaround?

Use below the line of code to show an elevation in button
android:outlineProvider="bounds" – K. Sopheak
That works, thanks!

try this I hope it helps, because another view or layout just after your button is hiding shadow
android:layout_marginBottom="16dp"

For Material Button, I tried the following and it worked
android:translationZ="5dp"

Since you're using an image, replace the <Button> tag with that of an <ImageButton>. So, your workaround code would be:
<ImageButton
android:id="#+id/google"
android:layout_width="270dp"
android:layout_height="38dp"
android:layout_marginTop="30dp"
android:layout_centerHorizontal="true"
android:src="#drawable/google"
android:elevation="10dp"
android:layout_below="#id/slogan"/>
Take note that the android:src attribute is being used here rather than the android:background attribute.
This one worked for me!

try this , I hope this help you ||
android:layout_margin="5dp"

How to add bottom round icon like gmail application android?

i want to make view like this with a button at the bottom. how can i do it? i am new to material design. I tried RecyclerView but i don't know whats that button.

you have to use FloatingActionButton try this.
http://developer.android.com/samples/FloatingActionButtonBasic/index.html

Visit https://github.com/vinc3m1/RoundedImageView/
this library can help you.
When you add library to your project write your xml file like that:
<com.makeramen.roundedimageview.RoundedImageView
android:id="#+id/imageViewID"
android:layout_width="40dp"
android:layout_height="40dp"/>

Creating such a Button with Android? (Inspired by iOS)

On an iOS App I saw such a Button:
The same I would like to do in Android, how could I achieve this?
What I tried is the following code:
<Button
android:id="#+id/widget41"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:text="Email1 testmail#gmail.com"
android:textStyle="bold" />
Looks something like that:
Well just a normal (ugly looking) Button. I have no idea, how I could style it like in iOS. Any suggestions or links would be appreciated!

The best solution would be to create your own custom view that behaves like the iOS counterpart (though, as other users have mentioned, Android does have it's own design guidelines, and the view that you are seeing is an iOS implementation that is designed for that platform).
If you look at the iOS image above (a copy of yours with some parts highlighted), I have split it up into sections.
You could use an Android ViewGroup like a LinearLayout to create the overall image, and give the LinearLayout a border or background (which can be a bitmap image of a rounded rectangle for example (See Android Nine Patch for an example of how to make this fit multiple screens).
Firstly, for the mail icon you would need a LeftAligned ImageView
with appropriate dimensions.
Next up we have a Bold TextView containing the text "Email1".
This is followed by another TextView which is blue and uses the
elipsize property (as defined in an Android XML layout) to create
"..." at the end once the text has reached the max width it can
consume. (Use android:ellipsize="end" in the XML)
Finally we have an indicator image, which again can be an ImageView
sized appropriately.
You could also achieve this with a RelativeLayout, which would allow you to RightAlign the indicator image, LeftAlign the mail icon, and allow the text to fill the space in between that it can get hold of.
Example of Nine Patch use for the background here

That is UITableView in iOS(just like ListView in android). It depends on the list item design you do it. There is no such Button Control in Android.

You should design your own button to looks like iOS one.
Android has it own design guidelines:
http://developer.android.com/design/patterns/pure-android.html

Well, as others have clearly mentioned there is no default Button in Android like this, and for your info neither is in iOS. Its all about the design. Anything is possible, in the end it all comes to how far are you willing to go to achieve it.
Below is a simple code, that will be close to your design.
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_margin="5dp"
android:background="#drawable/text_background"
android:drawableLeft="#drawable/envelope"
android:drawablePadding="10dp"
android:drawableRight="#drawable/right_arrow"
android:ellipsize="end"
android:gravity="center_vertical"
android:text="#string/email" />
There can be other ways also, like that whole view could be a ViewGroup, either a LinearLayout or a RelativeLayout and there could be multiple TextViews and ImageViews inside that.

Here is a tutorial for creating stylized android buttons. You can round the corners and change the background colors to look like the buttons in ios.
Here is a similar question.
Hope this helps.

How to make a checkbox look better in android

This is my XML for my check box:
<CheckBox
android:id="#+id/atm_checkbox"
android:layout_width="20dp"
android:layout_height="20dp"
android:background="#color/input_color" />
And it looks like this:
http://imageshack.us/photo/my-images/528/47342915.png/
This is what i found on internet:
<CheckBox
android:id="#+id/chkAndroid"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/chk_android"
android:checked="true" />
which looks like this
how to change my checkbox to look like the one i found on internet.
As my rep is <10 i cant upload image of my checkbox, or can anyone help me how to style checkbox to make it look better
I think both the xmls have similar code, but why are they looking so different?

If you want custom the look of checkbox see this tutorial and find everything.
By the way, the checkbox from your link is for Android3.0 and above.

CheckBox derive from Button class, so you can set a background image like button. See this link, may be it is what you are looking for.

If you want a clean design without codes, use:
<CheckBox
android:id="#+id/checkBox1"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:drawableLeft="#android:color/transparent"
android:drawablePadding="10dp"
android:text="CheckBox"/>
The trick is to set colour to transparent for android:drawableLeft and assign a value for android:drawablePadding. Also, transparency allows you to use this technique on any background colour without the side effect - like colour mismatch.

How to add a "plus" button on top of emptyView in ListView

I'd like to add a Button like this one below into my ListView when the list is empty using the setEmptyView() method.
Is there a built-in style in Android for this? Because I noticed that a few apps are using exactly the same Button style.

Look at this link: Add Items to ListView - Android
It shows the correct Android resource to use, which shows a green "+" symbol on the ImageButton.
To be precise:
<ImageButton
android:id="#+id/moreImageButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:contentDescription="#string/image_button_delete"
android:src="#android:drawable/ic_input_add" />

Short answer: No, this is not a standard Button.
However, you can add a similar Button by using an ImageView. You just have to design/download something you like.