最近工作比較繁忙,一直沒抽空更新博客,
簡單封裝了下進(jìn)度條工具類,有需要的直接拿去用,targetSdkVersion 可以指定到26
具體要定制的建議去官網(wǎng)看看

 public class NotificationUtils {
    private static NotificationManager manager;
    private static NotificationManager getManager() {
        if (manager == null) {
            manager = (NotificationManager) App.getInstance().getSystemService(NOTIFICATION_SERVICE);
        }
        return manager;
    }
    @RequiresApi(api = Build.VERSION_CODES.O)
    private static Notification.Builder getNotificationBuilder(String title, String content, String channelId) {
        //大于8.0
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            //id隨便指定
            NotificationChannel channel = new NotificationChannel(channelId, App.getInstance().getPackageName(), NotificationManager.IMPORTANCE_DEFAULT);
            channel.canBypassDnd();//可否繞過，請勿打擾模式
            channel.enableLights(true);//閃光
            channel.setLockscreenVisibility(VISIBILITY_SECRET);//鎖屏顯示通知
            channel.setLightColor(Color.RED);//指定閃光是的燈光顏色
            channel.canShowBadge();//桌面laucher消息角標(biāo)
            channel.enableVibration(true);//是否允許震動
            channel.setSound(null, null);
            //channel.getAudioAttributes();//獲取系統(tǒng)通知響鈴聲音配置
            channel.getGroup();//獲取通知渠道組
            channel.setBypassDnd(true);//設(shè)置可以繞過飞蹂，請勿打擾模式
            channel.setVibrationPattern(new long[]{100, 100, 200});//震動的模式蕾额，震3次豁跑，第一次100贰镣，第二次100酒繁，第三次200毫秒
            channel.shouldShowLights();//是否會閃光
            //通知管理者創(chuàng)建的渠道
            getManager().createNotificationChannel(channel);

        }
        return new Notification.Builder(App.getInstance()).setAutoCancel(true).setChannelId(channelId)
                .setContentTitle(title)
                .setContentText(content).setSmallIcon(R.mipmap.ic_launcher);
    }

    @RequiresApi(api = Build.VERSION_CODES.O) 
    public static void showNotification(String title, String content, int manageId, String channelId, int progress, int maxProgress) {
        final Notification.Builder builder = getNotificationBuilder(title,content,channelId);
       /* Intent intent = new Intent(this, SecondeActivity.class);
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
        builder.setContentIntent(pendingIntent);*/
        builder.setOnlyAlertOnce(true);
        builder.setDefaults(Notification.FLAG_ONLY_ALERT_ONCE);
        builder.setProgress(maxProgress, progress, false);
        builder.setWhen(System.currentTimeMillis());
        getManager().notify(manageId, builder.build());
    }
    @RequiresApi(api = Build.VERSION_CODES.O)
    public static void cancleNotification(int manageId) {
        getManager().cancel(manageId);
    }
}

自行替換

public class App extends Application {
    
    private static App mApplication = null;
    public static App getInstance(){
        return myApplication;
    }
    @Override
    public void onCreate() {
        super.onCreate();
        mApplication=this;
    }
}

有時間寫篇詳細(xì)的博客