SELECT作为另一个SELECT的别名(SELECT as alias to another SELECT)

 你可以这样做:( 忽略这个） 
 
int millis = 500;
new Handler().postDelayed(new Runnable() {
    @Override
    public void run() {
        startActivity(new Intent(SplashScreenActivity.this, HomeActivity.class));
            SplashScreenActivity.this.finish();
        }
    }, millis);
 
 更新1（应该可以）：在你的MainActivity中尝试这个，你的计算时间错误，所以使用日历。 如果它有效，我会尝试解释。 
 
Intent intent = new Intent(this, Receiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 1, intent, 0); //Or you can get broadcast in your way.
int seconds = 25;
Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.SECOND, seconds);
alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);
 
 更新2：您应该在清单中注册您的接收器。 在某些情况下，接收器上有意图过滤器，但我应该这样工作。 确保包裹和接收器的名称正确无误。 
 
<application ...>
    <activity ...>
    ...
    <receiver android:name=".package.YourReceiver">

    </receiver>
    ...
</application>

You can do something like this: (ignore this one)
 
int millis = 500;
new Handler().postDelayed(new Runnable() {
    @Override
    public void run() {
        startActivity(new Intent(SplashScreenActivity.this, HomeActivity.class));
            SplashScreenActivity.this.finish();
        }
    }, millis);
 
Update 1 (should work): Try this in your MainActivity, your probably counting time in wrong way so use calendar. If it works, I'll try to explain.
 
Intent intent = new Intent(this, Receiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 1, intent, 0); //Or you can get broadcast in your way.
int seconds = 25;
Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.SECOND, seconds);
alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);
 
Update 2: You should register your receiver in the manifest. In some cases there are intent filters on receivers but I it should work like that. Be sure that name of your package and receiver are correct.
 
<application ...>
    <activity ...>
    ...
    <receiver android:name=".package.YourReceiver">

    </receiver>
    ...
</application>