A text field allows the user to type text into your app. It can be
either single line or multi-line. Touching a text field places the cursor and
automatically displays the keyboard. In addition to typing, text fields allow
for a variety of other activities, such as text selection (cut, copy, paste)
and data look-up via auto-completion.
EditText Allow android user to type text in app. User can type single or
multiple line in editText field.
EditText also support Cut, Copy, Paste.
Normal-tap : when user tap on Edittext box, it showing keyboard.
Long-Tap : Long tapping on edittext box showing Cut, copy, paste option.
Below exaple showing editText
<EditText
android:id="@+id/your_id"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/your_hint"
android:inputType="keyboard type" />
android:id="@+id/your_id"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/your_hint"
android:inputType="keyboard type" />
id : Create id for your edittext like -
android:id="@id/name"
Text
Set the text to textfield
Code - android:text="your text here"
Text
Size
Specify the size of the size.
Size of text like - 16dp, 20sp, 2em ( 1em= 16dp )
code - android:textSize="16dp"
Text
Alignment
Set Text Left, Right, Centre and more in EditText
code - android:textAlignment="center"
Text All Caps
Make all text Capital in Textview
must be a boolean ( true/False )
code - android:textAllCaps="true"
Text
Color
Set the color of the text.
Color should be Hexadecimal (#000000 - #ffffff), octal [Range 0-255] ( rgb(212,212,212,0.5 )
code - android:textColor="#12E9fa"
Background
Set the background color as a image, color.
code - android:background="@drawable/abc"
Text
Style
Style (bold , italic, bolditalic)
for the text.
Must be one or more (separated by
'|') of the following constant values.
Value -
Normal - 0
Bold - 1
Italic - 2
code - android:textStyle="bold"
Typeface
Typeface (normal, sans, serif,
monospace) for the text.
Must be one of the following
constant values.
Value -
Normal - 0
Sans - 1
Serif - 2
Monospace - 3
code - android:typeface="monospace"
Text
Appearance
Default appearance of text: color,
typeface, size, and style.
code - android:textAppearance="@style/TextAppearance.AppCompat.Large"
Some Attribute -
textAppearanceLarge : style for "large" text. Defaults to primary text
color.
Text
Color Highlight
Color of the text selection highlight.
code - android:textColorHighlight="#12e7ff"
Text
Direction
Set the direction of the text
rtl for Right to Left direction.
code - android:textDirection="rtl"
Text
Single
Line
Constrains the text to a single horizontally scrolling line instead of letting it wrap onto multiple lines,
Must be boolean ( True / False )
code - android:singleLine="true"
Text
Shadow color
Place a blurred shadow of text
underneath the text, drawn with the specified color.
Must be a color value, in the form of
"
#rgb", "#argb", "#rrggbb", or "#aarrggbb" or hex (#ffaa77)code - android:shadowColor="#aa6600"
Text
ShadowDX
Horizontal offset of the text shadow.
Must be a floating point value, such as "
1.2".code - android:shadowDx="1.2"
Text
ShadowDY
Vertical offset of the text shadow.
Must be a floating point value, such as "
1.2".code - android:shadowDy="1.2"
Text
Shadow Radius
Blur radius of the text shadow.
Must be a floating point value, such as "
1.2".code - android:shadowRadius="1.2"
Text
IsSelectable
Indicates that the content of a non-editable text can be
selected.
Must be a boolean value, either "
true" or "false".code - android:textIsSelectable="true"
Text
ScaleX
Sets the horizontal scaling factor for the text.
Must be a floating point value, such as "
1.2".Code - android:textScaleX="12"
Text
ScaleY
Sets the vertical scaling factor for the text.
Must be a floating point value, such as "
1.2".Code - android:textScaleY="12"
Visibility
show or hide the edittext
Must be 'Visible', 'Invisivble' or 'Gone'.
code - android:visibility="invisible"
Letter
Spacing
Specing between character .
Must be a floating point value, such as
"
1.2".method - android:letterSpacing="2" range:"1 to depend on you"
Line
Spacing
Spacing between two line
code - android:lineSpacingExtra="16dp"
Hint
Show hint for type of input
Method - android:hint="search_hint"
Hint Color
Set color for hint text
code - android:textColorHint="#ff6600"
Line
Makes the TextView be exactly this many lines tall.
Must be an integer value, such as "
3".Code - android:lines="2"
Font
Family
Font family (named by string) for the text.
Must be a string value, using '\\;' to escape characters
such as '\\n' or '\\uxxxx' for a unicode character.
code - android:fontFamily="cursive"
Gravity
Specifies how to align the text by the
view's x- and/or y-axis when the text is smaller than the view.
Attribute are - top, bottom, left,
right, centre, start, end
code - android:gravity="center"
Margin
Specifies extra space on the bottom side of this view.
This space is outside this view's bounds. Margin values should be positive.
Must be a dimension value, which is a floating point
number appended with a unit such as "
14.5sp". Available
units are: px (pixels), dp (density-independent pixels), sp (scaled pixels
based on preferred font size), in (inches), mm (millimeters).Code - android:layout_margin="46dp"
XML Attributes
|
|||||||||||
Attribute Name
|
Related Method
|
Description
|
|||||||||
Specifies extra
space on the bottom side of this view.
|
|||||||||||
Specifies extra
space on the end side of this view.
|
|||||||||||
Specifies extra
space on the left side of this view.
|
|||||||||||
Specifies extra
space on the right side of this view.
|
|||||||||||
Specifies extra
space on the start side of this view.
|
|||||||||||
Specifies extra
space on the top side of this view.
|
|||||||||||
Padding
Sets the padding, in pixels, of all four edges. Padding
is defined as space between the edges of the view and the view's content. A
views size will include it's padding. If a background is provided, the
padding will initially be set to that (0 if the drawable does not have
padding). Explicitly setting a padding value will override the corresponding
padding found in the background.
Must be a dimension value, which is a floating point
number appended with a unit such as "
14.5sp". Available
units are: px (pixels), dp (density-independent pixels), sp (scaled pixels
based on preferred font size), in (inches), mm (millimeters).code - android:padding="16dp"
XML Attributes
|
|||||||||||
Attribute Name
|
Related Method
|
Description
|
|||||||||
onClick
Name of the method in this View's context to invoke when
the view is clicked. This name must correspond to a public method that takes
exactly one parameter of type View. For instance, if you specify
android:onClick="sayHello", you must declare a public void
sayHello(View v)method
of your context (typically, your Activity).
Must be a string value, using '\\;' to escape characters
such as '\\n' or '\\uxxxx' for a unicode character.
code - android:onClick="method name"
rotation
rotation of the view, in degrees.
Must be a floating point value, such as "
1.2".code - android:rotation="12"
Attribute - Description
android:rotationX - rotation
of the view around the x axis, in degrees.
android:rotationY - rotation
of the view around the y axis, in degrees.
Save
Enabled
If false, no state will be saved for this view when it is
being frozen. The default is true, allowing the view to be saved (however it
also must have an ID assigned to it for its state to be saved). Setting this to
false only disables the state for this view, not for its children which may
still be saved.
Must be a boolean value, either "
true" or "false".code - android:saveEnabled="false"
Sound
Effect Enabled
Boolean that controls whether a view should have sound
effects enabled for events such as clicking and touching.
Must be a boolean value, either "
true" or "false".code - android:soundEffectsEnabled="true"
Tag
Supply a tag for this view containing a String, to be
retrieved later with View.getTag() or searched for with View.findViewWithTag(). It is generally
preferable to use IDs (through the android:id attribute) instead of tags
because they are faster and allow for compile-time type checking.
Must be a string value, using '\\;' to escape characters
such as '\\n' or '\\uxxxx' for a unicode character.
code - android:tag="tag name here"
ForeGround
Defines the drawable to draw over the
content. This can be used as an overlay. The foreground drawable participates
in the padding of the content if the gravity is set to fill.
May be a color value, in the form of
"
#rgb", "#argb", "#rrggbb", or "#aarrggbb" or imagecode - android:foreground="@drawable/abc"
foreGround Gravity
Defines the gravity to apply to the foreground drawable.
The gravity defaults to fill.
Must be one or more (separated by '|') of the following
constant values.
Constant
|
Value
|
Description
|
top
|
0x30
|
Push object to the top of its container, not changing its
size.
|
bottom
|
0x50
|
Push object to the bottom of its container, not changing
its size.
|
left
|
0x03
|
Push object to the left of its container, not changing its
size.
|
right
|
0x05
|
Push object to the right of its container, not changing
its size.
|
center_vertical
|
0x10
|
Place object in the vertical center of its container, not
changing its size.
|
fill_vertical
|
0x70
|
Grow the vertical size of the object if needed so it
completely fills its container.
|
center_horizontal
|
0x01
|
Place object in the horizontal center of its container,
not changing its size.
|
fill_horizontal
|
0x07
|
Grow the horizontal size of the object if needed so it
completely fills its container.
|
center
|
0x11
|
Place the object in the center of its container in both
the vertical and horizontal axis, not changing its size.
|
fill
|
0x77
|
Grow the horizontal and vertical size of the object if
needed so it completely fills its container.
|
clip_vertical
|
0x80
|
Additional option that can be set to have the top and/or
bottom edges of the child clipped to its container's bounds. The clip will be
based on the vertical gravity: a top gravity will clip the bottom edge, a
bottom gravity will clip the top edge, and neither will clip both edges.
|
clip_horizontal
|
0x08
|
Additional option that can be set to have the left and/or
right edges of the child clipped to its container's bounds. The clip will be
based on the horizontal gravity: a left gravity will clip the right edge, a
right gravity will clip the left edge, and neither will clip both edges.
|
foregroundTint
Tint to apply to the foreground. if your foreground is
image then overwrite with tint color.
Must be a color value, in the form of "
#rgb", "#argb", "#rrggbb", or "#aarrggbb".android:foregroundTint="#12e7ff"
foregroundTintMode
Blending mode used to apply the
foreground tint. awsm
Must be one of the following
constant values.
Constant
|
Value
|
Description
|
src_over
|
3
|
The tint is drawn on top of the drawable. [Sa + (1 -
Sa)*Da, Rc = Sc + (1 - Sa)*Dc]
|
src_in
|
5
|
The tint is masked by the alpha channel of the drawable.
The drawable’s color channels are thrown out. [Sa * Da, Sc * Da]
|
src_atop
|
9
|
The tint is drawn above the drawable, but with the
drawable’s alpha channel masking the result. [Da, Sc * Da + (1 - Sa) * Dc]
|
multiply
|
14
|
Multiplies the color and alpha channels of the drawable
with those of the tint. [Sa * Da, Sc * Dc]
|
screen
|
15
|
[Sa + Da - Sa * Da, Sc + Dc - Sc * Dc]
|
add
|
16
|
Combines the tint and drawable color and alpha channels,
clamping the result to valid color values. Saturate(S + D)
|
code - android:foregroundTintMode="add"
editTextStyling
<android.support.design.widget.TextInputLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="8dp" android:layout_marginBottom="8dp"> <EditText android:id="@+id/editTextPhone" android:layout_width="match_parent" android:layout_height="wrap_content" android:inputType="textEmailAddress" android:hint="Phone" /> </android.support.design.widget.TextInputLayout>
android:inputType
The type of data being placed in a
text field, used to help an input method decide how to let the user enter text.
The constants here correspond to those defined by InputType.
Generally you can select a single value, though some can be combined together
as indicated. Setting this attribute to anything besides none also implies that the text is editable.
Must be one or more (separated by
'|') of the following constant values.
Constant
|
Value
|
Description
|
none
|
0x00000000
|
There is no content type. The text is not editable.
|
text
|
0x00000001
|
Just plain old text. Corresponds to
|
textCapCharacters
|
0x00001001
|
Can be combined with text and
its variations to request capitalization of
|
textCapWords
|
0x00002001
|
Can be combined with text and
its variations to request capitalization
of the first character of every word. Corresponds to
|
textCapSentences
|
0x00004001
|
Can be combined with text and
its variations to request capitalization of
the first character
of every sentence. Corresponds to
|
textAutoCorrect
|
0x00008001
|
Can be combined with text and
its variations to request auto-correction
|
textAutoComplete
|
0x00010001
|
Can be combined with text and
its variations to specify that this field will
be doing its own auto-completion and talking with the
input method
|
textMultiLine
|
0x00020001
|
Can be combined with text and
its variations to allow multiple lines of text in the field. If this flag is
not set, the text field will be constrained to a single line. Corresponds toTYPE_TEXT_FLAG_MULTI_LINE.
|
textImeMultiLine
|
0x00040001
|
Can be combined with text and
its variations to indicate that though the
regular text view
should not be multiple lines, the IME should provide
|
textNoSuggestions
|
0x00080001
|
Can be combined with text and
its variations to indicate that the IME
should not show any dictionary-based word suggestions.
Corresponds to TYPE_TEXT_FLAG_NO_SUGGESTIONS.
|
textUri
|
0x00000011
|
Text that will be used as a URI. Corresponds to
|
textEmailAddress
|
0x00000021
|
Text that will be used as an e-mail address. Corresponds
to TYPE_CLASS_TEXT |TYPE_TEXT_VARIATION_EMAIL_ADDRESS.
|
textEmailSubject
|
0x00000031
|
Text that is being supplied as the subject of an e-mail.
Corresponds to TYPE_CLASS_TEXT |TYPE_TEXT_VARIATION_EMAIL_SUBJECT.
|
textShortMessage
|
0x00000041
|
Text that is the content of a short message. Corresponds
to TYPE_CLASS_TEXT |TYPE_TEXT_VARIATION_SHORT_MESSAGE.
|
textLongMessage
|
0x00000051
|
Text that is the content of a long message. Corresponds to TYPE_CLASS_TEXT |TYPE_TEXT_VARIATION_LONG_MESSAGE.
|
textPersonName
|
0x00000061
|
|
textPostalAddress
|
0x00000071
|
Text that is being supplied as a postal mailing address.
Corresponds to TYPE_CLASS_TEXT |TYPE_TEXT_VARIATION_POSTAL_ADDRESS.
|
textPassword
|
0x00000081
|
Text that is a password. Corresponds to
|
textVisiblePassword
|
0x00000091
|
Text that is a password that should be visible.
Corresponds to TYPE_CLASS_TEXT |TYPE_TEXT_VARIATION_VISIBLE_PASSWORD.
|
textWebEditText
|
0x000000a1
|
Text that is being supplied as text in a web form.
Corresponds to TYPE_CLASS_TEXT |TYPE_TEXT_VARIATION_WEB_EDIT_TEXT.
|
textFilter
|
0x000000b1
|
|
textPhonetic
|
0x000000c1
|
Text that is for phonetic pronunciation, such as a
phonetic name field in a contact entry. Corresponds to TYPE_CLASS_TEXT | TYPE_TEXT_VARIATION_PHONETIC.
|
textWebEmailAddress
|
0x000000d1
|
Text that will be used as an e-mail address on a web form.
Corresponds to TYPE_CLASS_TEXT |TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS.
|
textWebPassword
|
0x000000e1
|
Text that will be used as a password on a web form.
Corresponds to TYPE_CLASS_TEXT |TYPE_TEXT_VARIATION_WEB_PASSWORD.
|
number
|
0x00000002
|
|
numberSigned
|
0x00001002
|
Can be combined with number and
its other options to allow a signed
number. Corresponds to
|
numberDecimal
|
0x00002002
|
Can be combined with number and
its other options to allow a decimal
(fractional) number. Corresponds to
|
numberPassword
|
0x00000012
|
|
phone
|
0x00000003
|
|
datetime
|
0x00000004
|
|
date
|
0x00000014
|
For entering a date. Corresponds to
|
time
|
0x00000024
|
For entering a time. Corresponds to
|
//-------------------------------
Scroll bar start here
ScrollIndicators
Defines which scroll indicators
should be displayed when the view can be scrolled. Multiple values may be
combined using logical OR, for example "top|bottom".
Must be one or more (separated by
'|') of the following constant values.
Constant
|
Value
|
Description
|
none
|
0x00
|
No scroll indicators are displayed.
|
top
|
0x01
|
Displays top scroll indicator when view can be scrolled
up.
|
bottom
|
0x02
|
Displays bottom scroll indicator when vew can be scrolled
down.
|
left
|
0x04
|
Displays left scroll indicator when vew can be scrolled
left.
|
right
|
0x08
|
Displays right scroll indicator when vew can be scrolled
right.
|
start
|
0x10
|
Displays right scroll indicator when vew can be scrolled
in the start direction.
|
end
|
0x20
|
Displays right scroll indicator when vew can be scrolled
in the end direction.
|
code - android:scrollIndicators="bottom"
ScrollX
The initial horizontal scroll offset, in pixels.
Must be a dimension value, which is a floating point
number appended with a unit such as "
14.5sp". Available
units are: px (pixels), dp (density-independent pixels), sp (scaled pixels
based on preferred font size), in (inches), mm (millimeters).code - android:scrollX="14sp"
ScrollY
The initial vertical scroll offset, in pixels.
Must be a dimension value, which is a floating point
number appended with a unit such as "
14.5sp". Available
units are: px (pixels), dp (density-independent pixels), sp (scaled pixels
based on preferred font size), in (inches), mm (millimeters).
code - android:scrollY="14sp"
scrollbarAlwaysDrawHorizontalTrack
Defines whether the horizontal scrollbar track should
always be drawn.
Must be a boolean value, either "
true" or "false".android:scrollbarAlwaysDrawHorizontalTrack="true"
Below code for vertical android:scrollbarAlwaysDrawVerticalTrack="true"
scrollbarDefaultDelayBeforeFade
Defines the delay in milliseconds that a scrollbar waits
before fade out.
Must be an integer value, such as "
100".code - android:scrollbarDefaultDelayBeforeFade="100"
scrollbarFadeDuration
Defines the delay in milliseconds that a scrollbar takes
to fade out.
Must be an integer value, such as "
100".code - android:scrollbarFadeDuration="100"
scrollbarSize
Sets the width of vertical scrollbars and height of
horizontal scrollbars.
Must be a dimension value, which is a floating point
number appended with a unit such as "
14.5sp". Available
units are: px (pixels), dp (density-independent pixels), sp (scaled pixels
based on preferred font size), in (inches), mm (millimeters).code - android:scrollbarSize="100dp"
scrollbarStyle
Controls the scrollbar style and
position. The scrollbars can be overlaid or inset. When inset, they add to the
padding of the view. And the scrollbars can be drawn inside the padding area or
on the edge of the view. For example, if a view has a background drawable and
you want to draw the scrollbars inside the padding specified by the drawable, you
can use insideOverlay or insideInset. If you want them to appear at the edge of
the view, ignoring the padding, then you can use outsideOverlay or
outsideInset.
Must be one of the following
constant values.
Constant
|
Value
|
Description
|
insideOverlay
|
0x0
|
Inside the padding and overlaid
|
insideInset
|
0x01000000
|
Inside the padding and inset
|
outsideOverlay
|
0x02000000
|
Edge of the view and overlaid
|
outsideInset
|
0x03000000
|
Edge of the view and inset
|
scrollbarThumbHorizontal
Defines the horizontal scrollbar thumb
drawable.
android:scrollbarThumbHorizontal="@drawable/abc"
scrollbarThumbVertical
Defines the vertical scrollbar thumb
drawable.
android:scrollbarThumbVertical="@drawable/abc"
scrollbarTrackHorizontal
Defines the horizontal scrollbar track drawable.
code - android:scrollbarTrackHorizontal="@drawable/abc"
scrollbarTrackVertical
Defines the vertical scrollbar track
drawable.
code - android:scrollbarTrackVertical="@drawable/abc"
scrollbars
Defines which scrollbars should be
displayed on scrolling or not.
Must be one or more (separated by
'|') of the following constant values.
Constant
|
Value
|
Description
|
none
|
0x00000000
|
No scrollbar is displayed.
|
horizontal
|
0x00000100
|
Displays horizontal scrollbar only.
|
vertical
|
0x00000200
|
Displays vertical scrollbar only.
|
code - android:scrollbars="horizontal"
--------------------------------------
Java Code
XML PART
<EditText android:id="@+id/edittext" android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="editText Demo" />
JAVA PART
public class MainActivity extends AppCompatActivity { EditText editText; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); editText=(EditText) findViewById(R.id.edittext); // edittext initialization } }
getText()
Obtain text from
edittext and store it.
Runtime
String string = editText.getText().toString();
setText()
Set text to edittext .
Runtime
editText.setText(" Set this value to edittext");
Directly, parse value to editText
or
String string = " Set this value to edittext";
editText.getText(string);
Store the value to a
string first and then set to editext.
selectAll
select all text of view
Place this code inside
button.
code - editText.selectAll();
extendSelection
select text in view from
starting range.
Place this code inside
button.
Syntax - editText.extendSelection( start index );
code - editText.extendSelection(3);
example - divakar
setSelection
select text in view from
starting range or from starting to end range.
Place this code inside
button.
Syntax - editText.setSelection( start index );
editText.setSelection( start index, end Index );
code - editText.setSelection( 3 );
editText.setSelection( 3, 5 );
addTextChangeListner
It perform when change occur in
edittext.
code - editText.addTextChangedListener(textWatcher);
this code listen any change in editText
then TextWatcher perform task.
Final code -
activity_main.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout 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" android:orientation="vertical" tools:context="sichlearning.example.com.testone.MainActivity"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Hello World!" android:id="@+id/hello" /> <EditText android:id="@+id/edittext" android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="editText Demo" android:textColor="#ffffff" /> <Button android:layout_width="200dp" android:layout_height="wrap_content" android:text="select all" android:onClick="select" /> </LinearLayout>
MainActivity.java
package sichlearning.example.com.testone; import android.graphics.Color; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.support.v7.app.AppCompatDelegate; import android.text.Editable; import android.text.TextWatcher; import android.view.View; import android.widget.EditText; import android.widget.TextView; public class MainActivity extends AppCompatActivity { EditText editText; TextView textView; TextWatcher textWatcher; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); editText=(EditText) findViewById(R.id.edittext); textView=(TextView)findViewById(R.id.hello); textWatcher=new TextWatcher() { @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { editText.setBackgroundColor(Color.DKGRAY); } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { editText.setBackgroundColor(Color.parseColor("#12e7ff")); } @Override public void afterTextChanged(Editable s) { // editText.setBackgroundColor(0xff0000ff); editText.setBackgroundColor(Color.RED); } }; editText.addTextChangedListener(textWatcher); } public void select(View view) { } }
setBackGroundColor
Change the color of edittext.
code -
editText.setBackgroundColor(Color.DKGRAY);
editText.setBackgroundColor(Color.parseColor("#12e7ff"));
append
Add text or string to view or any character
sequence.
Code - editText.append( string );
example - editText.append("hello");
or
String hello="hello diva";
editText.append(hello);
append
(CharSequence text, int start, int end)
add text in view with specified range (
start and end range )
code - editText.append(Char squence, int start,int end);
like - editText.append("hellodivakar",3,5);
this code only 'lo' to string
STYLING
add
style
To add style to edittext, use
<EditText
style="@style/FullWidthEditText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Subject"/>
style in style.xml
We need to specify name of the style
because we access style with name in editText.
<style name="FullWidthEditText" parent="Widget.AppCompat.EditText">
<item name="android:padding">20dp</item>
<item name="android:background">@null</item>
<item name="android:textSize">@dimen/abc_text_size_subhead_material</item>
</style>
add
style-shape
Add shape to editext.
Step 1. create a xml file
(radiant_bachground.xml ) to drawable folder and place this code
radial_background.xml
|
<?xml version="1.0" encoding="UTF-8"?> <gradient android:type="radial" android:startColor="#343030" android:endColor="#151515" android:gradientRadius="300" android:angle="270" android:centerY="0.3"/></shape> |
step -2. Add this code to your view ( edittext,
textview, button or more ) to change background
android:background="@drawable/radial_background"
Text
counter
activity_main.xml
<?xml version="1.0" encoding="utf-8"?> <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="sichlearning.example.com.textcounter.MainActivity"> <EditText android:id="@+id/editText1" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="#fff" android:layout_marginBottom="50dp" android:padding="30dp" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:maxLength="150" android:gravity="top|left" android:lineSpacingMultiplier="1.8" android:inputType="textMultiLine|textCapSentences" /> <TextView android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="100dp" /> </RelativeLayout>
MainActivity.java
public class MainActivity extends AppCompatActivity { private TextView textView1; private EditText editText1; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); editText1=(EditText)findViewById(R.id.editText1); textView1=(TextView)findViewById(R.id.textView1); TextWatcher textWatcher=new TextWatcher() { @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { } @Override public void afterTextChanged(Editable s) { textView1.setText(150 - s.toString().length() + "/150"); } }; editText1.addTextChangedListener(textWatcher); }}
Dynamic
View
activity_main.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout 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" android:orientation="vertical" tools:context=".MainActivity" > <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="hello_world" /> <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content"> <Button android:id="@+id/add" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:text="Add"/> <EditText android:id="@+id/textin" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_toLeftOf="@id/add"/> </RelativeLayout> <LinearLayout android:id="@+id/container" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> </LinearLayout> </LinearLayout>
MainActivity.java
public class MainActivity extends AppCompatActivity { EditText textIn; Button buttonAdd; LinearLayout container; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); textIn = (EditText)findViewById(R.id.textin); buttonAdd = (Button)findViewById(R.id.add); container = (LinearLayout)findViewById(R.id.container); buttonAdd.setOnClickListener(new View.OnClickListener(){ @Override public void onClick(View arg0) { LayoutInflater layoutInflater = (LayoutInflater) getBaseContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE); final View addView = layoutInflater.inflate(R.layout.row, null); TextView textOut = (TextView)addView.findViewById(R.id.textout); textOut.setText(textIn.getText().toString()); Button buttonRemove = (Button)addView.findViewById(R.id.remove); buttonRemove.setOnClickListener(new View.OnClickListener(){ @Override public void onClick(View v) { ((LinearLayout)addView.getParent()).removeView(addView); }}); container.addView(addView); }}); } }
row.xml
<?xml version="1.0" encoding="utf-8"?> <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="wrap_content"> <Button android:id="@+id/remove" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:text="Remove"/> <TextView android:id="@+id/textout" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_toLeftOf="@id/remove"/> </RelativeLayout>
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