Develop Reference

How to set permanent text in textview field?

There is a button with name "A" without any gravity. So A is at the left side. I want to set another text at the center of this button without changing string "A" and its place? How can I do that?
Sorry for my english hope you understand.

I think you cannot do that within a single button but you can make a RelativeLayout that will look like a Button, and then set the different TextView for different characters.
In that case your code should look like this
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="A" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:text="New Text" />
</RelativeLayout>
and also you can create a selector and apply it to RelativeLayout to achive the effect of a button.Follow this https://stackoverflow.com/a/14024007/3789993
Hope that helps

The easiest way to do it, but not recommended is just add white spaces after "A":
<Button
android:layout_width="WidthThatYouWant"
android:layout_height="HeightThatYouWant"
android:text="A TextYouWantToAdd"
/>
And the best way to do it, and recommended, is create a Layout that looks like a button:
<RelativeLayout
android:layout_width="WidthThatYouWant"
android:layout_height="HeightThatYouWant"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="A" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextYouWantToAdd"
android:layout_centerHorizontal="true" />
</RelativeLayout>
Then you can customize the LinearLayout to have the same format that your button, adding this:
android:background="#drawable/circularRedButton.xml"
For example here, is a button red and circular.
The file circularRedButton.xml is:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="false">
<shape android:shape="rectangle">
<corners android:radius="1000dp" />
<solid android:color="#ff0000" />
<stroke
android:width="2dip"
android:color="#c20000" />
<padding
android:bottom="4dp"
android:left="4dp"
android:right="4dp"
android:top="4dp" />
</shape>
</item>
<item android:state_pressed="true">
<shape android:shape="rectangle">
<corners android:radius="1000dp" />
<solid android:color="#ff0000" />
<stroke
android:width="2dip"
android:color="#c20000" />
<padding
android:bottom="4dp"
android:left="4dp"
android:right="4dp"
android:top="4dp" />
</shape>
</item>
</selector>

How to add the slider (left and right) effect using seekbar?

I have a dialog and in this i have 2 button "Yes" and "No". If i slide right then it will treat as pressed "No" and if i slide left it will treated as pressed "Yes" same as like some phone calling screes do for accept and reject calls. I tired this link. Initially my slider is positioned at mid position (android:progress ="50"), and if current progress returns 5 i am considering it pressed "yes" and if it returns 90 i consider pressed "No" and when i try to slide left or right it should produce a sliding effect for better UI as thumb moves. I tired this way but its not a good effect when right/left movement of thumb..
Means i want exactly same as slide to unlock button like this but want to keep the slider in middle so that i can move both side for Yes and No.
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:id="#android:id/background">
<shape>
<gradient
android:angle="0"
android:startColor="#ff2c10"
android:endColor="#ff2c10" />
<corners android:radius="35dip" />
<size android:height="55dp"
android:width="250dp"/>
</shape>
</item>
<item android:id="#android:id/progress">
<clip >
<shape>
<gradient
android:angle="0"
android:centerY="0.5"
android:startColor="#295d0b"
android:endColor="#295d0b" />
<corners android:radius="35dip" />
<size android:height="55dp"
android:width="250dp"/>
</shape>
</clip>
</item>
</layer-list>
And my seekbar.xml looks like....
<SeekBar
android:id="#+id/sb"
android:layout_marginTop="10dp"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:progress="50"
android:progressDrawable="#drawable/seek_bar"
android:thumb="#drawable/slide_thumb"
android:splitTrack="false"
android:background="#null"
android:thumbOffset="2dp"
android:paddingLeft="2dp"
android:paddingRight="2dp"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Yes"
android:textSize="25sp"
android:textColor="#android:color/white"
android:layout_marginTop="22dp"
android:layout_marginLeft="10dp"
android:textStyle="bold"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="No"
android:textSize="25sp"
android:textColor="#android:color/white"
android:layout_alignParentRight="true"
android:layout_marginTop="22dp"
android:layout_marginRight="10dp"
android:textStyle="bold"
/>
but its not giving me the right effect as i wanted, i want same as these below pictures are.. But with "yes" and "No" text.

Layout
<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:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".MainActivity">
<SeekBar
android:id="#+id/seekBar"
android:layout_width="match_parent"
android:layout_height="32dp"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_gravity="center"
android:layout_marginTop="121dp"
android:max="100"
android:paddingLeft="30dp"
android:paddingRight="30dp"
android:progress="50"
android:progressDrawable="#drawable/seekbar_progressbar"
android:thumbTintMode="multiply" />
<TextView
android:layout_width="wrap_content"
android:layout_height="24dp"
android:background="#drawable/circle_background_no"
android:textColor="#dedede"
android:text="No"
android:padding="5dp"
android:layout_marginLeft="17dp"
android:layout_marginStart="17dp"
android:layout_alignTop="#+id/textView"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="24dp"
android:textColor="#dedede"
android:background="#drawable/circle_background_yes"
android:padding="5dp"
android:paddingRight="7dp"
android:paddingLeft="7dp"
android:gravity="center"
android:text="Yes"
android:id="#+id/textView"
android:layout_marginRight="13dp"
android:layout_marginEnd="13dp"
android:layout_alignTop="#+id/seekBar"
android:layout_alignRight="#+id/seekBar"
android:layout_alignEnd="#+id/seekBar"
android:layout_marginTop="4dp" />
In drawable
circle_background_yes.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval">
<corners android:radius="10dip"/>
<stroke android:color="#14ba92" android:width="0dip"/>
<solid android:color="#14ba92"/>
</shape>
circle_background_no.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval">
<corners android:radius="10dip"/>
<stroke android:color="#990800" android:width="0dip"/>
<solid android:color="#990800"/>
</shape>
seekbar_progressbar.xml
<?xml version="1.0" encoding="utf-8"?>
<item>
<shape android:shape="rectangle" >
<corners android:radius="5dp"/>
<gradient
android:angle="180"
android:endColor="#14ba92"
android:startColor="#14ba92" />
</shape>
</item>
<item>
<clip>
<shape android:shape="rectangle" >
<corners android:radius="5dp" />
<gradient
android:angle="180"
android:endColor="#990800"
android:startColor="#d14900" />
</shape>
</clip>
</item>
<item>
<clip>
<shape android:shape="rectangle" >
<corners android:radius="5dp" />
<gradient
android:angle="180"
android:endColor="#990800"
android:startColor="#d14900" />
</shape>
</clip>
</item>
If you don't like the default thumb, you will have to create your own Drawable, which you can then set the thumb in code with something like:
Drawable thumb = getResources().getDrawable( R.drawable.myThumb );
SeekBar mSeekBar = (SeekBar) findViewById(R.id.mySeekBar);
mSeekbar.setThumb(thumb);
Or you can set the thumb in XML with:
<SeekBar
...
android:thumb="#drawable/seek_thumb" />
The actual Drawable can be an image, shape, or any other kind of Drawable you could possibly desire. If you want the thumb to change appearance when it is pressed, you will want to create a State List Drawable.

Android : Help me To resize drawable's image on Button

i design a Button combine between image.png and text . i have been searching but still can't get like what i want.
for selector :
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape
android:shape="rectangle">
<!--apply button background transparent, full opacity-->
<solid
android:color="#00ffffff" />
<!--make button border solid color, nontransparent-->
<stroke
android:color="#ffffff"
android:width="2dp"/>
<corners
android:radius="2dp"
android:bottomLeftRadius="1dp"
android:bottomRightRadius="1dp"
android:topLeftRadius="1dp"
android:topRightRadius="1dp"
/>
<padding
android:left="5dp"
android:right="5dp"
/>
</shape>
</item>
</selector>
for button.xml
<Button
android:layout_width="350dp"
android:layout_height="60dp"
android:layout_gravity="center"
android:text="Guest"
android:textAllCaps="false"
android:textColor="#android:color/white"
android:textStyle="bold"
android:textSize="20sp"
android:gravity="left|center_vertical"
android:paddingLeft="20dp"
android:drawableRight="#drawable/ico_arrow_white_xhdpi"
android:background="#drawable/button_guest_register_login_border"/>
this image that i want to resize :
Thank in advance

Instead of button you can use this and implement click event of framelayout.
<FrameLayout
android:id="#+id/button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="<Your Background image>">
<TextView
android:id="#+id/text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="<Your text>"
android:textSize="18sp" />
<ImageView
android:id="#+id/image"
android:layout_width="20dp"
android:layout_height="20dp"
android:layout_gravity="right|center"
android:layout_marginRight="10dp"
android:gravity="center|right"
android:src="<image drawable>" />
</FrameLayout>

Design XML Button Android

Here is an example of an app that used XML to design button.
How can i have the same design with XML?
How make my buttons look like it is floating just like in the image below?

I think you will need to use a shape drawable with a layered list, here is an example of a button that has a different color on the top and bottom (the drop shadow effect). You will set this as the background attribute of the Button.
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<shape android:shape="rectangle" >
<corners android:radius="2dp" />
<solid android:color="#color/button_border_dark" />
</shape>
</item>
<item android:top="1dp">
<shape android:shape="rectangle" >
<corners android:radius="2dp" />
<solid android:color="#color/button_border_light" />
</shape>
</item>
<item
android:bottom="1dp"
android:top="1dp">
<shape android:shape="rectangle" >
<corners android:radius="2dp" />
<solid android:color="#color/button_general_color" />
</shape>
</item>
</layer-list>

Here is the XML of the Button. You can also use custom typeface as well as shadows to make it the way you want.
<Button
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:background="#android:color/holo_blue_dark"
android:textColor="#android:color/white"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:layout_gravity="center"
android:shadowColor="#android:color/holo_blue_light"
android:id="#+id/btnClickMe"
android:text="Click Me!"
/>

Use this one....
<?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:gravity="center"
android:orientation="vertical" >
<Button
android:id="#+id/button1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginLeft="25dp"
android:layout_marginRight="25dp"
android:background="#drawable/selected" // selected is the name of your custom file
android:text="Register"
android:textColor="#fff" />
<Button
android:id="#+id/button2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginLeft="25dp"
android:layout_marginRight="25dp"
android:background="#37a8f7"
android:text="Login"
android:layout_marginTop="15dp"
android:textColor="#fff" />
</LinearLayout>
you can make custom file selected.xml in drawable folder for red button.
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="#ff0000"/>
<corners android:radius="1dp"/>
<padding android:left="3dp" android:top="2dp"
android:right="3dp" android:bottom="2dp" />
</shape>
and set it to your red button.
And you can make same as for your blue button.

how to add bottom border in relativelayout

<LinearLayout
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:orientation="vertical" android:background="#drawable/settings_border" android:padding="1dp"
android:layout_marginLeft="15dip" android:layout_marginRight="15dip" android:layout_marginTop="5dip">
<RelativeLayout android:id="#+id/map_refresh"
android:layout_height="fill_parent" android:layout_width="wrap_content"
android:background="#drawable/settings_selector_up"
android:padding="15dp">
<TextView android:id="#+id/Text1"
android:layout_height="wrap_content" android:layout_width="wrap_content"
android:text="Map refresh period">
</TextView>
<TextView android:id="#+id/TextView09"
android:layout_height="wrap_content" android:layout_width="wrap_content"
android:text="1 min"
android:layout_alignParentRight="true"
android:paddingRight="5dp">
</TextView>
</RelativeLayout>
<RelativeLayout android:id="#+id/own_location"
android:layout_height="fill_parent" android:layout_width="wrap_content"
android:padding="15dp"
android:background="#drawable/settings_selector_mid">
<TextView android:id="#+id/Text1"
android:layout_height="wrap_content" android:layout_width="wrap_content"
android:text="Own location update period">
</TextView>
<TextView android:id="#+id/TextView09"
android:layout_height="wrap_content" android:layout_width="wrap_content"
android:text="1 min"
android:layout_alignParentRight="true"
android:paddingRight="5dp">
</TextView>
</RelativeLayout>
I want set only bottom border in relativelayout. I want to dispaly listview style but not using listview. Lets say each listitem is relativlayout. I want set only bottom border so its look like a listview's divider.

I hope I understood what you said.
in the res folder create a new folder (if you don't already have it) named drawable
there create an xml named "borders.xml"
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true"><shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
<gradient android:angle="90" android:centerColor="#6da23f" android:endColor="#8bc45d" android:startColor="#2f481c" />
<stroke android:width="2dp" android:color="#999999" />
<padding android:bottom="4dp" android:left="3dp" android:right="3dp" android:top="6dp" />
<corners android:radius="10px"/>
</shape>
</item>
<item>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
<gradient android:angle="90" android:centerColor="#6da23f" android:endColor="#8bc45d" android:startColor="#4c8a39" />
<stroke android:width="1dp" android:color="#FFFFFF" />
<padding android:bottom="4dp" android:left="3dp" android:right="3dp" android:top="6dp" />
<corners android:radius="10px"/>
</shape>
</item>
</selector>
You can further edit it as you like.
Then select the layout from the Outline and click Background properties, and select the borders xml that you created.
This will create borders for all 4. Alternatively, you can add a simple
<View android:layout_width="1dip"
android:layout_height="fill_parent"
android:background="#FFFFFF" />
line and add it to the bottom of your layout and change the color/size to your liking.

For some reason the other solutions didn't work for me - all borders were shown no matter how I changed it. This worked:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<shape
android:shape="rectangle">
<stroke android:width="1dp" android:color="#color/gray" />
<solid android:color="#color/gray" />
</shape>
</item>
<item android:bottom="1dp">
<shape
android:shape="rectangle">
<stroke android:width="1dp" android:color="#color/white" />
<solid android:color="#color/white" />
</shape>
</item>
</layer-list>
The color of the border is gray and the background is white for the container (LinearLayout in my example). You can simply change the second item to make the border thicker or have border on the top/left/right.
This is how the layout xml looks like:
<LinearLayout
android:id="#+id/searchWrapper"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingTop="5dp"
android:paddingBottom="5dp"
android:background="#drawable/bottom_gray_border"
android:layout_alignParentTop="true">
<EditText
android:id="#+id/searchEditText"
style="#style/EditTextSearch"
android:hint="#string/find"
android:layout_marginLeft="5dp"/>
</LinearLayout>
I got the idea from here: Is there an easy way to add a border to the top and bottom of an Android View?

<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<stroke
android:width="1dip"
android:color="#FF8000" />
<solid
android:color="#00FFFFFF"
android:paddingLeft="10dip"
android:paddingTop="10dip"/>
<corners android:radius="10px"/>
<padding
android:left="10dip"
android:top="10dip"
android:right="10dip"
android:bottom="10dip" />
</shape>
You can save this as borderframe.xml in the res/drawable folder (create it if it doesnt exist yet), and reference it like so: android:background="#drawable/borderframe".

A simple way to display a border is to create a horizontal LinearLayout, and to set its background color and height according to the border you want.