Android uses TextView to achieve a marquee effect (1)

Android uses TextView to achieve a marquee effect

1.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"
    tools:context= "Com.imooc.marqueetextviewdemo.MainActivity" >

    <textview

        Android:id= "@+id/tv_01"
        Android:layout_width= "Wrap_content"
        android:layout_height= "Wrap_content"
        android:text= "@string/name"/>

</RelativeLayout>

2.text text content:
Strings.xml:

<resources>
    <string name= "App_name" >MarqueeTextViewDemo</string>
    <string name= "Name" >marqueetextviewdemo,marqueetextviewdemo,marqueetextviewdemo,marqueetextviewdemo</ String>
</resources>

Legend:

There is too much text before any properties are set, and word wrapping is displayed.

3. Set up one-line marquee

Just add 4 properties to the TextView

Android:singleline= "true"//sets the text to be displayed on one line, the text not displayed with three "..." Display

Android:ellipsize= "marquee"//Get rid of three "..."

Android:focusable= "true"

Android:focusableintouchmode= "true"

Complete code example:

<textview
    Android:id= "@+id/tv_01"
    Android:layout_width= "Wrap_content"
    android:layout_height= "Wrap_content"
    android:text= "@string/name"
    Android:singleline= "true"
    Android:ellipsize= "Marquee"
    Android:focusable= "true"
    Android:focusableintouchmode= "true"
    />

Legend:

Layout display style is not running, the whole line is one.

Run Example:

The text starts the marquee.

Android uses TextView to achieve a marquee effect (1)