How to properly update a collection in a widget UI on Android 8.0 (API level 26+)?
The story so far:
I have two Android Home Screen widgets to mainain and I recently updated the host App to support Android 8.0 (targetSdkVersion 26). Obviously, the long-running services, which were used to update the widgets, got killed by the Android system at some point, so as an interim fix, I flagged the services as ForegroundService, showing a corresponding notification to the user. I'm currently looking for a way to optimize this, however, and find a solution that is less visible to the user.
One of the widgets I already fixed. It does not use any collections as part of its view, therefore it does not rely on RemoteViewsService/RemoteView. I was able to fix the update process with the help of a JobIntentService (and AlarmManager, which the widgets had already been using anyway).
The problem:
I'm having a hard time, however, to fix the other widget, which uses a collection (ListView) in its UI. I tried to bypass the usage of RemoteViewsService/RemoteView and add my RemoteViews directly, similar to how I do it in the other widget. But then I simply get loading errors and the widget shows some fallback UI.
The official widget documentation also still describes RemoteViewsService/RemoteViewsFactory as mandatory when working with collections in widgets:
https://developer.android.com/guide/topics/appwidgets/
This other StackOverflow question ends with the questioner suggesting to stop using RemoteViewsService, but the discussion says nothing about how to continue to support collections:
How to ensure RemoteViewsService is run in the background in Oreo?
I find it a bit weird that there would be a way to avoid foreground notifications for one widget but to have to rely on them for another, depending on the structure of the widget's UI. I would expect Google to provide something like a RemoteViewsJobIntentService, but there doesn't seem to be anything like that.
My question:
Is it the officially best practice to update a collection (e.g.
ListView) in an Android widget on Android 8.0 / targetSdkVersion
26 to use RemoteViewsService and flagging it as a foreground service?If not, how else can a collection (e.g. ListView) in an Android
widget on Android 8.0 / targetSdkVersion 26 be updated?
android android-widget android-8.0-oreo remoteview asked Nov 12 at 14:18
Ingmar_D.
62
add a comment |
The story so far:
I have two Android Home Screen widgets to mainain and I recently updated the host App to support Android 8.0 (targetSdkVersion 26). Obviously, the long-running services, which were used to update the widgets, got killed by the Android system at some point, so as an interim fix, I flagged the services as ForegroundService, showing a corresponding notification to the user. I'm currently looking for a way to optimize this, however, and find a solution that is less visible to the user.
One of the widgets I already fixed. It does not use any collections as part of its view, therefore it does not rely on RemoteViewsService/RemoteView. I was able to fix the update process with the help of a JobIntentService (and AlarmManager, which the widgets had already been using anyway).
The problem:
I'm having a hard time, however, to fix the other widget, which uses a collection (ListView) in its UI. I tried to bypass the usage of RemoteViewsService/RemoteView and add my RemoteViews directly, similar to how I do it in the other widget. But then I simply get loading errors and the widget shows some fallback UI.
The official widget documentation also still describes RemoteViewsService/RemoteViewsFactory as mandatory when working with collections in widgets:
https://developer.android.com/guide/topics/appwidgets/
This other StackOverflow question ends with the questioner suggesting to stop using RemoteViewsService, but the discussion says nothing about how to continue to support collections:
How to ensure RemoteViewsService is run in the background in Oreo?
I find it a bit weird that there would be a way to avoid foreground notifications for one widget but to have to rely on them for another, depending on the structure of the widget's UI. I would expect Google to provide something like a RemoteViewsJobIntentService, but there doesn't seem to be anything like that.
My question:
Is it the officially best practice to update a collection (e.g.
ListView) in an Android widget on Android 8.0 / targetSdkVersion
26 to use RemoteViewsService and flagging it as a foreground service?If not, how else can a collection (e.g. ListView) in an Android
widget on Android 8.0 / targetSdkVersion 26 be updated?
android android-widget android-8.0-oreo remoteview asked Nov 12 at 14:18
Ingmar_D.
62
add a comment |
The story so far:
I have two Android Home Screen widgets to mainain and I recently updated the host App to support Android 8.0 (targetSdkVersion 26). Obviously, the long-running services, which were used to update the widgets, got killed by the Android system at some point, so as an interim fix, I flagged the services as ForegroundService, showing a corresponding notification to the user. I'm currently looking for a way to optimize this, however, and find a solution that is less visible to the user.
One of the widgets I already fixed. It does not use any collections as part of its view, therefore it does not rely on RemoteViewsService/RemoteView. I was able to fix the update process with the help of a JobIntentService (and AlarmManager, which the widgets had already been using anyway).
The problem:
I'm having a hard time, however, to fix the other widget, which uses a collection (ListView) in its UI. I tried to bypass the usage of RemoteViewsService/RemoteView and add my RemoteViews directly, similar to how I do it in the other widget. But then I simply get loading errors and the widget shows some fallback UI.
The official widget documentation also still describes RemoteViewsService/RemoteViewsFactory as mandatory when working with collections in widgets:
https://developer.android.com/guide/topics/appwidgets/
This other StackOverflow question ends with the questioner suggesting to stop using RemoteViewsService, but the discussion says nothing about how to continue to support collections:
How to ensure RemoteViewsService is run in the background in Oreo?
I find it a bit weird that there would be a way to avoid foreground notifications for one widget but to have to rely on them for another, depending on the structure of the widget's UI. I would expect Google to provide something like a RemoteViewsJobIntentService, but there doesn't seem to be anything like that.
My question:
Is it the officially best practice to update a collection (e.g.
ListView) in an Android widget on Android 8.0 / targetSdkVersion
26 to use RemoteViewsService and flagging it as a foreground service?If not, how else can a collection (e.g. ListView) in an Android
widget on Android 8.0 / targetSdkVersion 26 be updated?
android android-widget android-8.0-oreo remoteview asked Nov 12 at 14:18
Ingmar_D.
62
The story so far:
I have two Android Home Screen widgets to mainain and I recently updated the host App to support Android 8.0 (targetSdkVersion 26). Obviously, the long-running services, which were used to update the widgets, got killed by the Android system at some point, so as an interim fix, I flagged the services as ForegroundService, showing a corresponding notification to the user. I'm currently looking for a way to optimize this, however, and find a solution that is less visible to the user.
One of the widgets I already fixed. It does not use any collections as part of its view, therefore it does not rely on RemoteViewsService/RemoteView. I was able to fix the update process with the help of a JobIntentService (and AlarmManager, which the widgets had already been using anyway).
The problem:
I'm having a hard time, however, to fix the other widget, which uses a collection (ListView) in its UI. I tried to bypass the usage of RemoteViewsService/RemoteView and add my RemoteViews directly, similar to how I do it in the other widget. But then I simply get loading errors and the widget shows some fallback UI.
The official widget documentation also still describes RemoteViewsService/RemoteViewsFactory as mandatory when working with collections in widgets:
https://developer.android.com/guide/topics/appwidgets/
This other StackOverflow question ends with the questioner suggesting to stop using RemoteViewsService, but the discussion says nothing about how to continue to support collections:
How to ensure RemoteViewsService is run in the background in Oreo?
I find it a bit weird that there would be a way to avoid foreground notifications for one widget but to have to rely on them for another, depending on the structure of the widget's UI. I would expect Google to provide something like a RemoteViewsJobIntentService, but there doesn't seem to be anything like that.
My question:
Is it the officially best practice to update a collection (e.g.
ListView) in an Android widget on Android 8.0 / targetSdkVersion
26 to use RemoteViewsService and flagging it as a foreground service?If not, how else can a collection (e.g. ListView) in an Android
widget on Android 8.0 / targetSdkVersion 26 be updated?
android android-widget android-8.0-oreo remoteview android android-widget android-8.0-oreo remoteview asked Nov 12 at 14:18
Ingmar_D.
62
asked Nov 12 at 14:18
Ingmar_D.
62
edited Nov 13 at 15:54
asked Nov 12 at 14:18
Ingmar_D.
62
asked Nov 12 at 14:18
Ingmar_D.
62
asked Nov 12 at 14:18
Ingmar_D.
62
62
add a comment |
add a comment |
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53264094%2fhow-to-properly-update-a-collection-in-a-widget-ui-on-android-8-0-api-level-26%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
active
oldest
votes
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53264094%2fhow-to-properly-update-a-collection-in-a-widget-ui-on-android-8-0-api-level-26%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
