在screen_on上更新android小部件的最佳方法是什么。是否支持Android Oreo（API 26）

问题描述

我创建了一个非常好用的小部件，然后由于Google Play开发者控制台的要求，我将targetSDK从23更改为26。

I created a widget, which was working quite fine, and then I changed targetSDK from 23 to 26, due to the requirement from Google Play Developer Console.

之后切换到Android SDK 26，我的app小部件不再更新screen_on / User_present事件。我可以看到，由于（后台执行限制），后续运行任务在Android 26中有很多变化。

After switching to Android SDK 26, my app widget is no more updating on the screen_on/User_present event. I can see that there are a bunch of changes in Android 26 for background running task due to (Background Execution Limits).

以下是我的问题？

Q1-如何更新我的应用每个screen_on事件上的小部件，以便用户在小部件上看到正确的状态？

Q1- How can I update my app widget on every screen_on event, so that the user will see the right status on widget?

Q2-如何每隔1小时定期更新我的应用小部件？

Q2- How can I update my app widget periodically after every 1 hour?

以下代码我正在使用。

static void updateAppWidget(Context context, AppWidgetManager appWidgetManager,
                                int appWidgetId) {

        RemoteViews remoteViews = new RemoteViews(context.getPackageName(), R.layout.app_widget);
        String token = getToken();
        getUUID();
        getGatewayActivationStatus();
        getEnvironment();
        if (token != null) {
            remoteViews.setViewVisibility(R.id.layoutBtn, View.VISIBLE);
            AppWidgetIntentReceiver appWI = new AppWidgetIntentReceiver();
            appWI.getMode(context);
        } else {
            remoteViews.setTextViewText(R.id.txt_mode, "Please sign into your App to see status.");
            remoteViews.setViewVisibility(R.id.layoutBtn, View.INVISIBLE);
        }

        remoteViews.setOnClickPendingIntent(R.id.btn_refresh, buildButtonPendingIntent(context, _refresh));
        remoteViews.setOnClickPendingIntent(R.id.txt_mode, buildButtonPendingIntent(context, _openApp));

        appWidgetManager.updateAppWidget(appWidgetId, remoteViews);
    }


    @Override
    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
        for (int appWidgetId : appWidgetIds) {
            updateAppWidget(context, appWidgetManager, appWidgetId);
        }
    }

    @Override
    public void onEnabled(Context context) {
        super.onEnabled(context);
    }

    @Override
    public void onDisabled(Context context) {
        super.onDisabled(context);
    }

    @Override
    public void onReceive(Context context, Intent intent) {
        super.onReceive(context, intent);//add this line
        AppWidgetIntentReceiver appWI = new AppWidgetIntentReceiver();

        if (_standby.equals(intent.getAction()) || _home.equals(intent.getAction()) || _away.equals(intent.getAction()) || _refresh.equals(intent.getAction()) || _openApp.equals(intent.getAction())) {
            appWI.handleClickEvent(context, intent, intent.getAction());

        } else if (intent.getAction().equals("android.intent.action.USER_PRESENT") || intent.getAction().equals("android.appwidget.action.APPWIDGET_ENABLED") || intent.getAction().equals("android.intent.action.MY_PACKAGE_REPLACED") || intent.getAction().equals("android.appwidget.action.APPWIDGET_UPDATE")) {

            getToken();
            getUUID();
            getGatewayActivationStatus();
            getEnvironment();
            appWI.handleClickEvent(context, intent, _refresh);

        }
    };

    static PendingIntent buildButtonPendingIntent(Context context, String event) {
        if (!event.equals("OPEN_APP")) {
            Intent intent = new Intent(context, AppWidgetProvider.class);
            intent.setAction(event);
            return PendingIntent.getBroadcast(context, 0, intent, 0);
        } else {
            Intent intent2 = new Intent(context, MainActivity.class);
            return PendingIntent.getActivity(context, 0, intent2, 0);
        }
    }

推荐答案

最后，我找到了解决这个问题的方法。

Finally, I've found solution to this problem.

我们可以在这里找到答案：

We can simply find answer here:

要解决上述问题，我们可以使用Alarm Manager。

To solve the above problem, we can use Alarm Manager.

因此，在打盹模式完成之后，或在维护窗口期间，它将自动执行在警报管理器服务中编写的代码。

So right after the doze mode finishes, or during a maintenance window, it will automatically execute the code, written in alarm manager service.

您可以在此处获得帮助，从此stackoverflow帖子中的窗口小部件中使用Alarm Manager：

You can get help here to use Alarm Manager in your widget from this stackoverflow post:https://stackoverflow.com/a/14319020/3497865

这篇关于在screen_on上更新android小部件的最佳方法是什么。是否支持Android Oreo（API 26）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！