Android programming to realize different colors of different state text for the control _android

This article describes the Android programming implementation of the control of different state text display different colors of the method. Share to everyone for your reference, specific as follows:

Mode one :

The first control to select

<textview
   android:layout_width= "wrap_content"
   android:layout_height= "Wrap_content"
   @+id/close_time_display "
   android:layout_marginright=" 20DP "
   android:text=" @string/default_time "
   style= "@style/item_content_text_style"/>

Style is a custom style, and the corresponding XML file is as follows:

<style name= "Item_content_text_style" >
    <item name= "android:textsize" >26sp</item>
    <item name= "Android:duplicateparentstate" >true</item>
    <item name= "Android:textcolor" >@ Drawable/textcolor_yellow_selector</item>
</style>

The Textcolor_yellow_selector in TextColor is as follows

<?xml version= "1.0" encoding= "Utf-8"?> <selector xmlns:android=
 "http://schemas.android.com/apk/" Res/android "
 >
 <item
 android:state_pressed=" true "
 android:color=" @color/yellow "/>
 <item
 android:state_focused= "true"
 android:color= "@color/yellow"/>
 <item android: State_selected= "true"
 android:color= "@color/yellow" ></item>
 <item android:color= "@color/ White "/>
</selector>

Implementation mode two : colorstatelist text color

Api

Windows platform VC, for different button states, using a different color display text, to achieve more complex, generally have to draw a button. But Android is easy to implement.

We first add a colorstatelist resource XML file, which is saved in Res/color/button_text.xml:

<?xml version= "1.0" encoding= "Utf-8"?> <selector xmlns:android=
"http://schemas.android.com/apk/res/" Android ">
  <item android:state_pressed=" true "
     android:color=" #ffff0000 "/> <!--pressed-->
  <item android:state_focused= "true"
     android:color= "#ff0000ff"/> <!--focused-->
  <item Android:color= "#ff000000"/> <!--default-->
</selector>

Button btn= (button) Findviewbyid (R.ID.BTN);
Resource= (resources) Getbasecontext () getresources ();
Colorstatelist csl= (colorstatelist) resource.getcolorstatelist (r.color.button_text);
if (csl!=null) {
   btn.settextcolor (color_state_list);//Set button text color
}

Or you can do this:

Xmlresourceparser Xpp=resources.getsystem (). GETXML (R.color.button_text);
try {
   colorstatelist csl= colorstatelist.createfromxml (getresources (), xpp);
   Btn.settextcolor (CSL);
} catch (Exception e) {
   //Todo:handle Exception
}

Finally attach any states that may appear:

<?xml version= "1.0" encoding= "Utf-8"?> <selector xmlns:android=
"http://schemas.android.com/apk/res/" Android >
<item
  android:color= "Hex_color"
  android:state_pressed=["true" | "false"]
  android:state_focused=["true" | "false"]
  android:state_selected=["true" | "false"]
  android:state_active=["true" | "false"]
  android:state_checkable=["true" | "false"]
  android:state_checked=["true" | "false"]
  android:state_enabled=["true" | "false"]
  android:state_window_focused=["true" | "false"]/>
</selector>

For more information on Android-related content readers can view the site topics: "Android Development Introduction and Advanced Course", "Android Multimedia operating skills Summary (audio, video, recording, etc.)", "Android Basic Components Usage Summary", " Android View tips Summary, Android layout layout tips and a summary of Android controls usage

I hope this article will help you with the Android program.