Android studio app style text update#
Android studio app style text full#

Use sp (scaled-pixel) or dp (device-independent pixel) sizes, or set the attribute to a predefined resource or theme.

android:lineSpacingExtra: Set extra spacing between lines of text.

android:typeface: Set the text typeface (if not already set by android:textAppearance).

Use normal, bold, italic, or bold| italic.

android:textStyle: Set the text style (if not already set by android:textAppearance).

Use sp (scaled-pixel) sizes such as 20sp or 14.5sp, or set the attribute to a predefined resource or theme.

android:textSize: Set the text size (if not already set by android:textAppearance).

You set this attribute to a predefined style resource or theme that already defines these values.

android:textAppearance: The appearance of the text, including its color, typeface, style, and size.

Color resources and themes are described in other chapters. You can set the attribute to a color value, a predefined resource, or a theme.

android:textColor: Set the color of the text.

In addition to android:layout_width and android:layout_height (which are required for a TextView), the most often used attributes with TextView are the following: After extracting the string, use the string resource name with to specify the text: You can extract the text string into a string resource (perhaps called hello_world) that's easier to maintain for multiple-language versions of the app, or if you need to change the string in the future.

What the text looks like within the TextView, such as the initial text and its style, size, and colorįor example, to set the width, height, and initial text value of the view:.

How the TextView itself appears, such as with a background color.

Where the TextView is positioned in a layout (like any other view).

You can use XML attributes for a TextView to control: You learn all about EditText in another lesson. If you want to allow users to edit the text, use EditText, a subclass of TextView that allows text input and editing.

Android studio app style text update#

You can refer to a TextView in your Java code by using its resource id in order to update the text or its attributes from your code. You can add a resource id to the TextView in the layout, and control how the text appears using attributes in the layout file.

Android studio app style text full#

You can use TextView for a View of any size, from a single character or word to a full screen of text. One View subclass you may use often is the TextView class, which displays text on the screen. This chapter also shows how you can create a scrolling view of text and other elements.

A TextView can be used to show a message, a response from a database, or even entire magazine-style articles that users can scroll.

This chapter describes one of the most often used View subclasses in apps: the TextView, which shows textual content on the screen. Lesson 3: Testing, debugging, and using support libraries