Android开发Service在背后每隔1秒执行操作

Android开发Service在背后每隔1秒执行操作

关键代码：

/**
     * 设置定时器，准备下次调用
     *
     * @param time 调用时间，秒
     */
    private void next(int time) {
        Intent intent = new Intent(this, VersionCheckServices.class);
        //pendingIntent = PendingIntent.getService(this, 0, intent, 0);
        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.S) {
            pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_IMMUTABLE);
        } else {
            pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
        }
        manager.set(AlarmManager.RTC, System.currentTimeMillis() + time * 1000, pendingIntent);
    }

我的项目示例代码：

/**
 * author：congge
 * date: 2019/4/18 10:40
 * desc:审核版本每隔1分钟请求一次接口
 *
**/

public class VersionCheckServices extends Service {
    private static String TAG = VersionCheckServices.class.getName();
    /**
     * 定时器对象
     */
    private AlarmManager manager;
    private PendingIntent pendingIntent;
    private final int LOOP_TIME = 60;

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    @Override
    public void onCreate() {
        super.onCreate();
        manager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
    }

    @Override
    public void onDestroy() {
        if (pendingIntent != null) {
            manager.cancel(pendingIntent);
        }
        super.onDestroy();
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        if (!SPNoCleanUtil.getBoolean(SPKey.CHECK_SAVE,false) && !SPUtils.isCheckUser()) {
            if (!Utils.isForeground(this)) {
                new CheckVersionPassPresenter().dealCheckVersion(checkVersionCallBack);
            } else {
                next(LOOP_TIME);
            }
        } else {
            //非审核版本就不需要继续调用服务了
            stopSelf();
        }
        return super.onStartCommand(intent, flags, startId);
    }


    /**
     * 检查审核版本的回调
     */
    private HttpOnNextListener checkVersionCallBack = new HttpOnNextListener<CheckPassVersionResult>() {


        @Override
        public void onError(ApiException e) {
            next(LOOP_TIME);
        }

        @Override
        public void onNext(CheckPassVersionResult checkPassVersionResult) {
            if(checkPassVersionResult.getData() != null && checkPassVersionResult.getData().isPass()){
                SPNoCleanUtil.saveCheckVersion(true);
                IntentUtils.startGuideActivity(VersionCheckServices.this);
            } else {
                next(LOOP_TIME);
                SPNoCleanUtil.saveCheckVersion(false);
            }
        }

        @Override
        public void onDealCodeNext(CheckPassVersionResult baseResult) {
            next(LOOP_TIME);
            SPNoCleanUtil.saveCheckVersion(false);
        }


    };


    /**
     * 设置定时器，准备下次调用
     *
     * @param time 调用时间，秒
     */
    private void next(int time) {
        Intent intent = new Intent(this, VersionCheckServices.class);
        //pendingIntent = PendingIntent.getService(this, 0, intent, 0);
        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.S) {
            pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_IMMUTABLE);
        } else {
            pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
        }
        manager.set(AlarmManager.RTC, System.currentTimeMillis() + time * 1000, pendingIntent);
    }

}

应该你们都看得懂，把需求代码换成你们的即可。

调用：

		//获取最新是否是审核版本
        if ( ModifySetUtils.isCheckVersion()) {
            startService(new Intent(mContext, VersionCheckServices.class));
        }

还有问题的可评论或者私信我。