question: @ SuppressWarnings ( "deprecation" ) public static boolean install ( Context context , String destDir , String filename ) { try { File f = new File ( context . getDir ( destDir , Context . MODE_PRIVATE ) , filename ) ; if ( f . exists ( ) ) { Log . d ( TAG , "binary has existed" ) ; return false ; } copyAssets ( context , filename , f , "0755" ) ; return true ; } catch ( Exception e ) { Log . e ( TAG , "installBinary failed: " + e . getMessage ( ) ) ; return false ; } }
target:  Install specified binary into destination directory.