Android定义一个不消失的悬停通知栏

private NotificationManager manager = null;private Notification.Builder builder = null;

private void showNotification(Context context) {    manager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);    builder = new Notification.Builder(context);    builder.setShowWhen(false)            .setSmallIcon(R.drawable.ic_power_low)            .setLargeIcon(BitmapFactory.decodeResource(context.getResources(), R.drawable.ic_power_low))            .setContentTitle("自定义标题")            .setContentText("自定义内容")            .setDefaults(NotificationCompat.FLAG_ONGOING_EVENT)            .setPriority(Notification.PRIORITY_MAX);    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {//SDK版本>=21才能设置悬挂式通知栏        builder.setCategory(String.valueOf(Notification.FLAG_ONGOING_EVENT))                .setVisibility(Notification.VISIBILITY_PUBLIC)                .setColor(context.getResources().getColor(R.color.salmon));        Intent intent = new Intent();        PendingIntent pi = PendingIntent.getBroadcast(this, 0, intent, 0);        builder.setFullScreenIntent(pi, true);        manager.notify(null, 0, builder.build());    }}

private void cancelNotification() {    if (manager != null) {        manager.cancel(0);    }}

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