笔记52 | 优化一段苏基平大神的代码记录

private void leaveCarApp(List<String> packageNames){  //把需要保留的APP包名传进来
            for (int i = 0; i < carPackage.length; i++) {  //遍历所有需要匹配的APP名称
            int count = 0; 
            for(int j = 0;j<packageNames.size();j++){ //遍历所有需要保留的APP名称
                String packageName = packageNames.get(j);
                if(packageName.equals("")){ //没有要保留的APP
                    removeAppsFromName(apps,carPackage[i]); //从第一个开始隐藏
                }else{
                    int size =
                    Log.i("md", "j: "+j);
                    if (!carPackage[i].equals(packageName)) {//判断遍历的包名是否匹配
                        count +=1;                  

                        if(count == packageNames.size()){//如果是第一次循环遍历到匹配就跳出不处理
                            removeAppsFromName(apps,carPackage[i]); //就去除不需要保留的包名APP

                        }
                    }else{
                        j = packageNames.size();//跳出J的遍历
                    }
                }
              }
           }
         }

private void leaveCarApp(List<String> packageNames){ //Evan add it for 20171215
         for (int i = 0; i < carPackage.length; i++) {
             if (packageNames.equals("")) {
                 removeAppsFromName(apps,carPackage[i]);
             }else{
                 if (!packageNames.contains(carPackage[i])) //carPackage[i]是否包含于需要显示的APP包名组
                     removeAppsFromName(apps,carPackage[i]); 
             }
         }
     }