Question

我想点击相应的按钮，将 AlarmManager 的时间更改为1天，3天和7天。例如，如果我点击＆＃34; 1天＆＃34;按钮，警报应设置为每天重复的方式，等等。但我不知道如何实现这一点，我有代码在预先定义的时间内重复闹钟

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Intent intent = new Intent(this, NotifyService.class);
        PendingIntent sender = PendingIntent.getBroadcast(this, 0, intent,
                PendingIntent.FLAG_CANCEL_CURRENT);
        AlarmManager am = (AlarmManager) this
                .getSystemService(Context.ALARM_SERVICE);
        long recurring = (1 * 60000 * 60 * 24); // repeat every 24 hrs
        am.setRepeating(AlarmManager.RTC, Calendar.getInstance()
                .getTimeInMillis(), recurring, sender);
    }

    public void set1day(View view) {
        //...
    }

    public void set3days(View view) {
        //...
    }

    public void set7days(View view) {
        //...
    }
}

Answer 1

间隔日可以使用默认常量。您应该使用它们而不是计算间隔的秒数。喜欢这个：

单日间隔

 public void set1day(View view) {      
    am.setInexactRepeating(AlarmManager.RTC, Calendar.getInstance()
                .getTimeInMillis(), AlarmManager.INTERVAL_DAY, sender);
}

持续3天

public void set3day(View view) { 
    am.setInexactRepeating(AlarmManager.RTC, Calendar.getInstance()
                .getTimeInMillis(), AlarmManager.INTERVAL_DAY*3, sender);
}

任何n天的间隔

am.setInexactRepeating(AlarmManager.RTC, Calendar.getInstance()
            .getTimeInMillis(), AlarmManager.INTERVAL_DAY*n, sender);

此外，从API 19开始，所有重复警报都不准确。使用setInexactRepeating以避免电池耗尽。

设置AlarmManager时间onClick android

1 个答案: