Android---通知notification

下面是点击通知就跳转activity,有显示横幅和普通通知两个。是根据APP是否在后台,如果在前台，就显示横幅通知。如果在后台，就显示普通通知。

因为横幅的API是Android 5.0才出现的。所以先判断版本。
isAppIsInBackground(context)是判断应用的前后台。
代码连接：https://www.jianshu.com/p/63cb7e03b5cc

/**
     * 发送通知
     *
     * @param mActivity
     * @param mBundle
     */
    public void sendNotification(Class<?> mActivity, Bundle mBundle, String title, String content) {
        Log.i("hpdgetui", android.os.Build.MANUFACTURER + "   ");
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
            showCommonNotification(mActivity, mBundle, title, content);
        } else {
            //小米5的手机应用在前台会自动打开APP，后台会正常弹出横幅
            if (android.os.Build.MANUFACTURER.equals("Xiaomi") || android.os.Build.MANUFACTURER.equals("HUAWEI") || android.os.Build.MANUFACTURER.equals("Meizu")) {
                if (isAppIsInBackground(context)) {
                    showHangup(mActivity, mBundle, title, content);
                } else {
                    showCommonNotification(mActivity, mBundle, title, content);
                }
            } else {
                showHangup(mActivity, mBundle, title, content);
            }
        }
    }

横幅通知

/**
     * 显示横幅通知
     *
     * @param mActivity
     * @param mBundle
     * @param
     */
    private void showHangup(Class<?> mActivity, Bundle mBundle, String title, String content) {

        NotificationManager manger = (NotificationManager) context.getSystemService(context.NOTIFICATION_SERVICE);
        NotificationCompat.Builder builder = new NotificationCompat.Builder(context);

        builder.setContentTitle(title);
        builder.setContentText(Html.fromHtml(content));

        builder.setDefaults(NotificationCompat.DEFAULT_ALL);
        builder.setSmallIcon(R.mipmap.ielts_bro_app_icon);
        Intent intent = new Intent(context, mActivity);
        mBundle.putSerializable("class", mActivity);
        intent.putExtras(mBundle);
        intent.setFlags(
                Intent.FLAG_ACTIVITY_NEW_TASK
                        | Intent.FLAG_ACTIVITY_CLEAR_TOP
        );
        PendingIntent pIntent = PendingIntent.getActivity(context, (int) System.currentTimeMillis(), intent, PendingIntent.FLAG_UPDATE_CURRENT);
        builder.setContentIntent(pIntent);
        builder.setFullScreenIntent(pIntent, true);
        builder.setAutoCancel(true);
        Notification notification = builder.build();
        manger.notify((int) System.currentTimeMillis(), notification);
    }

普通通知

 /**
     * 显示普通通知
     *
     * @param mActivity
     * @param mBundle
     */
    private void showCommonNotification(Class<?> mActivity, Bundle mBundle, String title, String content) {
        NotificationCompat.Builder builder =
                new NotificationCompat.Builder(context);
        builder.setSmallIcon(R.mipmap.ielts_bro_app_icon);

        builder.setContentTitle(title);
        builder.setContentText(Html.fromHtml(content));

        builder.setAutoCancel(true).setDefaults(
                NotificationCompat.DEFAULT_VIBRATE
                        | NotificationCompat.DEFAULT_SOUND
        );
        Intent intent = new Intent(context, mActivity);
        intent.putExtras(mBundle);
        intent.setFlags(
                Intent.FLAG_ACTIVITY_NEW_TASK
                        | Intent.FLAG_ACTIVITY_CLEAR_TOP
        );

        PendingIntent pendingIntent =
                PendingIntent.getActivity(
                        context,
                        100,
                        intent,
                        PendingIntent.FLAG_UPDATE_CURRENT
                );

        builder.setContentIntent(pendingIntent);
        Notification n = builder.build();
        NotificationManagerCompat managerCompat =
                NotificationManagerCompat.from(context);
        managerCompat.notify((int) System.currentTimeMillis(), n);
    }