Transparent and translucent Android surfaceview

Transparent // transparent translucent // translucent
 

Package RW. trans; import android. app. activity; import android. content. context; import android. graphics. bitmap; import android. graphics. bitmapfactory; import android. graphics. canvas; import android. graphics. pixelformat; import android. OS. bundle; import android. view. motionevent; import android. view. surfaceholder; import android. view. surfaceholder. callback; import android. view. surfaceview; public class transparentactivity extends activity {/** called when the activity is first created. */class mysurfaceview extends surfaceview implements callback {float left, top; Bitmap bitmap = bitmapfactory. decoderesource (getresources (), R. drawable. reen); Public mysurfaceview (context) {super (context); // todo auto-generated constructor stub getholder (). setformat (pixelformat. transparent); // set to transparent // getholder (). setformat (pixelformat. translucent); // translucent Getholder (). addcallback (this); setfocusable (true) ;}@ overridepublic void surfacechanged (surfaceholder holder, int format, int width, int height) {// todo auto-generated method stub} @ overridepublic void surfacecreated (surfaceholder holder) {// todo auto-generated method stub dodraw ();} private void dodraw () {// todo auto-generated method stubcanvas canvas = getholder (). lockcanvas (); canvas. drawbitmap (bitmap, left, top, null); getholder (). unlockcanvasandpost (canvas) ;}@ overridepublic void surfacedestroyed (surfaceholder holder) {// todo auto-generated method stub}/* (non-javadoc) * @ see android. app. activity # ontouchevent (Android. view. motionevent) * // @ overridepublic Boolean ontouchevent (motionevent event) {// todo auto-generated method stubleft = event. getx (); Top = event. gety (); dodraw (); return Super. ontouchevent (event) ;}@override public void oncreate (bundle savedinstancestate) {super. oncreate (savedinstancestate); setcontentview (New mysurfaceview (getapplicationcontext ()));}}

Androidmanifest. xml

 
<? XML version = "1.0" encoding = "UTF-8"?> <Manifest xmlns: Android = "http://schemas.android.com/apk/res/android" package = "RW. trans "Android: versioncode =" 1 "Android: versionname =" 1.0 "> <uses-SDK Android: minsdkversion =" 10 "/>
 
 
    
    
      Android: theme =" @ Android: style/theme. translucent " 
    
   
<Intent-filter> <action Android: Name = "android. intent. action. main "/> <category Android: Name =" android. intent. category. launcher "/> </intent-filter> </activity>
 
 
</Application> </manifest>