Android系统设置闹钟

利用系统服务做到闹钟的功能 private Intent intent; private PendingIntent pendingIntent; private Calendar calendar; private AlarmManager alarmManager; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); intent=new Intent(MainActivity.this,pageActivity.class); pendingIntent=PendingIntent.getActivity(MainActivity.this, 0, intent, 0); calendar=Calendar.getInstance(); alarmManager=(AlarmManager) getSystemService(ALARM_SERVICE); } public void myclick(View v){ new TimePickerDialog(MainActivity.this, 0, new OnTimeSetListener() { @Override public void onTimeSet(TimePicker view, int hourOfDay, int minute) { Calendar c=Calendar.getInstance(); c.setTimeInMillis(System.currentTimeMillis()); c.set(Calendar.HOUR, hourOfDay); c.set(Calendar.MINUTE, minute); alarmManager.set(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(), pendingIntent); } }, calendar.get(Calendar.HOUR_OF_DAY), calendar.get(Calendar.MINUTE), false).show(); } }