Android 文件及文件夹删除

public static void delete(File file){    try{        if(file.exists()){            if(file.isFile()){                file.delete();            }else if(file.isDirectory()){                File files[] = file.listFiles();                for(int i=0;i<files.length;i++){                    files[i].delete();                }            }            file.delete();        }else{
    Log.i("Tag","所删除的文件不存在！"+'\n');        }    }    catch(Exception e){
Log.i("Tag","unable to delete the folder!");
    }}