AlarmManager鬧鐘管理者
activity_main.xml這個裏面寫了LinearLayout佈局中有一個Button點擊的方法
java代碼:
public void setAlarmOne(View view){
//獲取當前系統的時間
Calendar calendar=Calendar.getInstance();
int hour=calendar.get(Calendar.HOUR_OF_DAY);
int minute=calendar.get(Calendar.MINUTE);
//彈出對話框1
timePickerDialog = new TimePickerDialog(this, new TimePickerDialog.OnTimeSetListener() {
@Override
public void onTimeSet(TimePicker timePicker, int i, int i1) {
//取到系統的時 分
Calendar c=Calendar.getInstance();
c.set(Calendar.HOUR_OF_DAY,i);
c.set(Calendar.MINUTE,i1);
//2 確定好選擇的時間
//3 設置鬧鐘
//4 當時間一到,將執行的響應
Intent intent=new Intent();
intent.setAction("com.android_28_alarm.RING.");
pendingIntent = PendingIntent.getBroadcast(MainActivity.this,0x101,intent,0);
alarmManager.set(AlarmManager.RTC_WAKEUP,c.getTimeInMillis(), pendingIntent);
}
},hour,minute,true);
timePickerDialog.show();
}
寫了一個類繼承BroadcastReceiver(廣播)重寫的一個方法,裏面加了一個判斷如下:
if("com.android_28_alarm.RING".equals(intent.getAction())){
Log.i("test","收到廣播了");
//跳轉到Activity 響鈴的界面
//在廣播中跳轉activty要這樣跳轉纔行
Intent intent1=new Intent(context,RingActivity.class);
//給Intent設置標誌位Flag
intent1.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
//Intent的組成部分:ComponementName extra Action Data Categlay(分組) Flag
context.startActivity(intent1);
}
要在清單文件配置下廣播:
<receiver android:name=".RingReceived">
<intent-filter>
<action android:name="zking.com.android_28_alarm.RING"></action>
</intent-filter>
</receiver>