Android TextView Tutorial

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1- Android TextView

In Android, TextView is a user interface control, which is used to display text. It works like a label. By default, the user will not be able to edit the text content.

2- TextView Attributes

Attribute Description
android:id It is used to uniquely identify the control
android:autoLink It will automatically found and convert URL(s) and email addresses as clickable links.
android:ems It is used to make the TextView be exactly this many ems wide.
android:hint It is used to display the hint text when text is empty
android:width It makes the TextView be exactly this many pixels wide.
android:height It makes the TextView be exactly this many pixels tall.
android:text It is used to display the text.
android:textColor It is used to change the color of the text.
android:gravity It is used to specify how to align the text by the view's x and y-axis.
android:maxWidth It is used to make the TextView be at most this many pixels wide.
android:minWidth It is used to make the TextView be at least this many pixels wide.
android:textSize It is used to specify the size of the text.
android:textStyle It is used to change the style (bold, italic, bolditalic) of text.
android:textAllCaps It is used to present the text in all CAPS.
android:typeface It is used to specify the Typeface (normal, sans, serif, monospace) for the text.
android:textColorHighlight It is used to change the color of text selection highlight.
android:textColorLink It is used to change the text color of links.
android:inputType It is used to specify the type of text being placed in text fields.
android:fontFamily It is used to specify the fontFamily for the text.
android:editable If we set, it specifies that this TextView has an input method.

android:autoLink

This attribute tells Android to automatically generate links for phone numbers, addresses, email addresses and website addresses found in the  TextView text.
Constant Value Description
all f Match all patterns (equivalent to web|email|phone|map).
email 2 Match email addresses.
map 8 Match map addresses.
none 0 Match no patterns (default).
phone 4 Match phone numbers.
web 1 Match Web URLs
<TextView
    android:id="@+id/textView_a11"
    android:autoLink="email|phone|map|web"
    android:textColorLink="#FF0000"
    android:text="Contact: +1-1111222233, example@gmail.com. http://abc.com, 620 Eighth Avenue New York, NY 10018"
    ... />
Click on Phone Link.
Click on Email Link
Click on Web URL
Click on Address Link (Will open Google Map)

android:ems

This attribute is used to specify a value for the width of the TextView in the  EM measurement units.  EM is a unit in Typography whose value is the width of the letter "M".
So,  android:ems="5" means that it sets the width of the TextView to 5 times as much as the width of the letter "M".

android:text

Specifies the text content for  TextView.

android:textColor

Specifies the text color for TextView.

android:textSize

Specifies the font size for the text.

android:textStyle

Specifies a style for the font, which has four values:
  1. android:textStyle="normal"  (Default)
  2. android:textStyle="bold"
  3. android:textStyle="italic"
  4. android:textStyle="bold|italic"

android:textAllCaps

This attribute has two values,  true/false. With the value of  true, the TextView text will be in upper case when displayed. Its default value is false.

android:textColorHighlight

Sets the background color for the selected sub-text. This attribute comes in handy when you use EditText (a subclass of TextView). EditText permits the user to select and edit its text.

android:textColorLink

Specifies the font color for the links in the text. (See more about the  android:autoLink attribute).

android:fontFamily

Specifies the font family for the TextView text.

android:editable

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