High-performance Android dim sum desktop skin

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Some time ago, I studied launcher and made a desktop that can switch skin like a dim sum desktop. So I will share with you the IMPLEMENTATION OF THE APPLICATION skin. In this way, the main application is an APK, the skin is an APK, and the installed APK is read in the main application.
Attach several cut charts first

Here is the androidmanifest. xml of the skin APK.

 
   
  
    package  = "com. app. greenskinexample "
    Android: versioncode  =" 1 "
    Android: versionname  = "1.0"> 
    
    
      Android: Label  =" @ string/app_name "> 
      
       
       
       
      
     
    
    
   

<Action Android: Name = "com. App. skinexample. Theme"/> is important. We can find this skin in the main application. Then, put the required image, text, and color Resources in the res folder of the APK.

In the main application APK, we use the followingCodeSegment to read the skin APK

Public Static FinalString theme_action = "com. App. skinexample. Theme";PublicList <resolveinfo>Themes;Public VoidGetallthemes () {intent mintent=NewIntent (theme_action); packagemanager pm=Getpackagemanager (); themes= PM. queryintentactivities (mintent, 0);}
 

The most important thing is how to replace the original one with the skin APK in the main APK. Let's take a look at the code.

 Public Resources themeresources = Null  ;  Public  String themepackage;  Public   Void  Themeloading () {packagemanager pm = Getpackagemanager ();  Try  {Themeresources = PM. getresourcesforapplication (themepackage );}  Catch (Namenotfoundexception e ){  //  The saved theme was uninstalled so we save the default one  } Drawable icon = Null  ;  Int Resource_id = themeresources. getidentifier (resourcename, "drawable" , Themepackage );  If (Resource_id! = 0 ) {Icon =Themeresources. getdrawable (resource_id );}} 

Desktop skin Implementation MethodProgramSource code:

Themeutil. Java

 Public   Static   Void  Displaytoast (context, string text) {Toast toast; toast = Toast. maketext (context, text, Toast. length_short); toast. setgravity (gravity. Center, 0, 0 ); Toast. Show ();}  Public   Static   Void Loadthemeresource (Resources themeresources, string themepackage, string item_name, view item,  Int  Themetype) {drawable d = Null  ;  If (Themeresources! = Null  ){  Int Resource_id = themeresources. getidentifier (item_name, "drawable" , Themepackage );  If (Resource_id! = 0) {D = Themeresources. getdrawable (resource_id );  If (Themetype = themeattributes. theme_item_foreground & item Instanceof  Imageview) {drawable TMP = (Imageview) item). getdrawable ();  If (TMP! = Null  ) {TMP. setcallback (  Null  ); TMP =Null  ;} (Imageview) item). setimagedrawable (d );}  Else  {Drawable TMP = Item. getbackground ();  If (TMP! = Null  ) {TMP. setcallback (  Null  ); TMP = Null ;} Item. setbackgrounddrawable (d );}}}}  Public   Static  Drawable loadthemedrawable (Resources themeresources, string resourcename, string themepackage) {drawable icon = Null  ;  Int Resource_id = themeresources. getidentifier (resourcename, "drawable" , Themepackage );  If (Resource_id! = 0 ) {Icon = Themeresources. getdrawable (resource_id );}  Return  Icon ;}  Public   Static   Int  Loadthemecolor (Resources themeresources, string resourcename, string themepackage ){  Int Color = 0 ;  Int Resource_id = themeresources. getidentifier (resourcename, "color" , Themepackage );  If (Resource_id! = 0 ) {Color = Themeresources. getcolor (resource_id );}  Return  Color ;} 

Starting address: http://www.eoeandroid.com/thread-231199-1-1.html

 

Download the source code: launcherskinexample.zip