所需环境：
1、JDK
2、Android SDK
import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.text.SimpleDateFormat;import java.util.Date;import java.util.Timer;import java.util.TimerTask;public class DDingAutoClock {public static void main(String[] args) {Timer timer = new Timer();timer.schedule(new Task(), 60 * 1000);}static class Task extends TimerTask {public void run() {String str = getCurrentTime();if(str.equals("08:00")){System.out.println("定时任务执行");//启动叮叮try {execCommand("adb wait-for-device");execCommand("adb shell am start -n com.alibaba.android.rimet/com.alibaba.android.rimet.biz.SplashActivity");} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}}public static String getCurrentTime(){SimpleDateFormat formatter = new SimpleDateFormat ("HH:mm");Date curDate = new Date(System.currentTimeMillis());//获取当前时间String str = formatter.format(curDate);System.out.println(str);return str;}public static void execCommand(String command) throws IOException {// start the ls command running//String[] args = new String[]{"sh", "-c", command};Runtime runtime = Runtime.getRuntime(); Process proc = runtime.exec(command); //这句话就是shell与高级语言间的调用//如果有参数的话可以用另外一个被重载的exec方法//实际上这样执行时启动了一个子进程,它没有父进程的控制台//也就看不到输出,所以我们需要用输出流来得到shell执行后的输出InputStream inputstream = proc.getInputStream();InputStreamReader inputstreamreader = new InputStreamReader(inputstream);BufferedReader bufferedreader = new BufferedReader(inputstreamreader);// read the ls outputString line = "";StringBuilder sb = new StringBuilder(line);while ((line = bufferedreader.readLine()) != null) {//System.out.println(line);sb.append(line);sb.append("\n");}//使用exec执行不会等执行成功以后才返回,它会立即返回//所以在某些情况下是很要命的(比如复制文件的时候)//使用wairFor()可以等待命令执行完成以后才返回try {if (proc.waitFor() != 0) {System.out.println(proc.exitValue());}}catch (InterruptedException e) { System.err.println(e);}}}
