公共静态布尔deleteDirectory（文件路径）{
        // TODO自动生成方法存根
        如果（path.exists（））{
            文件[]文件= path.listFiles（）;
            的for（int i = 0; I＆LT; files.length;我++）{
                如果（文件[I] .isDirectory（））{
                    deleteDirectory（文件[I]）;
                }
                其他 {
                    文件[I] .delete（）;
                }
            }
        }
        返程（path.delete（））;
    }
 

添加code就叫它曾经当需要使用目录的路径删除或要删除的文件

Possible Duplicate:
How to delete entire contents of sdcard programmatically in Android 2.2

I want to clear all the files from android device programmatically.

Can anyone suggest me the way or code, Hence I can perform this operation please...

Thanks in advance.

public static boolean deleteDirectory(File path) {
        // TODO Auto-generated method stub
        if( path.exists() ) {
            File[] files = path.listFiles();
            for(int i=0; i<files.length; i++) {
                if(files[i].isDirectory()) {
                    deleteDirectory(files[i]);
                }
                else {
                    files[i].delete();
                }
            }
        }
        return(path.delete());
    }

add the code just call it when ever you require using the path of the directory to delete or the file to delete