cmd+p 快速查看该方法的参数定义 * * option + shift +上下 快速移动上下行 * * cmd + e 显示最近操做的文件 * * cmd + option +左右 回到以前浏览过的地方 * option + shift +点击 多光标操做 * control +g 多重选择 * f3 添加书签 * cmd +f3 查看书签 * * cmd + y 在当前页面预览代码 * cmd + option + t 对某行代码进行重构,例如增长if 语句 * * option + enter 快速提示
//执行task // new DownLoadTask().execute(); class DownLoadTask extends AsyncTask<Void,Integer,Boolean>{ @Override protected void onPreExecute() { super.onPreExecute(); } @Override protected Boolean doInBackground(Void... voids) { //后台处理返回处理结果 //更新处理进度 publishProgress(11); return null; } @Override protected void onProgressUpdate(Integer... values) { //进度处理 } @Override protected void onPostExecute(Boolean aBoolean) { //结果处理 } }
private void userThreadPoolExecutor(){ int NUMBER_CORES = Runtime.getRuntime().availableProcessors(); int keep_alive = 8; BlockingQueue que = new LinkedBlockingDeque();//队列,这里面的任务能够放入int的max个 ArrayBlockingQueue arrque = new ArrayBlockingQueue(2);//只放入两个任务 // ThreadPoolExecutor executor = new ThreadPoolExecutor(2,5,keep_alive, TimeUnit.SECONDS,arrque,new NameTreadFactory(),new MyIgnorePolicy()); for (int i = 0;i < 10;i++){ executor.execute(new MyRunable(""+i)); } } static class NameTreadFactory implements ThreadFactory { private final AtomicInteger mThreadNum = new AtomicInteger(1); @Override public Thread newThread(Runnable r) { Thread t = new Thread(r, "my-thread-" + mThreadNum.getAndIncrement()); System.out.println(t.getName() + " has been created"); return t; } } public static class MyIgnorePolicy implements RejectedExecutionHandler { public void rejectedExecution(Runnable r, ThreadPoolExecutor e) { doLog(r, e); } private void doLog(Runnable r, ThreadPoolExecutor e) { // 可作日志记录等 Log.d("tag",r.toString() + " rejected"); // System.out.println("completedTaskCount: " + e.getCompletedTaskCount()); } } class MyRunable implements Runnable { private String name; public MyRunable(String name){ this.name = name; } @Override public void run() { try { System.out.println(this.toString() + " is running!"); Thread.sleep(3000); //让任务执行慢点 } catch (Exception e) { e.printStackTrace(); } } public String getName() { return name; } @Override public String toString() { return "My task---[name==="+name+" ]"; } }