cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
rwittels
Responsive Resident
Responsive Resident

Caching images offline

Hi. I just need confirmation that I am doing this correctly please. I have 4 images in my app which were uploaded to the Media section and are listed under the heading Images. I would like to cache my images OnStart. I have used this code:

ClearCollect(appImages, {Images: ["Image1.png", "Image2.png", "Image3.png", "Image4.png"] })

Am I doing this correctly?

Do I need to do anything on each image within the app screens?

1 ACCEPTED SOLUTION

Accepted Solutions
eka24
Community Champion
Community Champion

Consider this:

 

ClearCollect(

    appImages,

    {ID:1, Image: Image2},

    {ID:2, Image: Image2},

    {ID:3, Image: Image3},

    {ID:4, Image: Image4},

    {ID:5, Image: Image5})

------------

If you like this post, give a Thumbs up. Where it solved your request, Mark it as a Solution to enable other users find it.

View solution in original post

9 REPLIES 9
eka24
Community Champion
Community Champion

Consider this:

 

ClearCollect(

    appImages,

    {ID:1, Image: Image2},

    {ID:2, Image: Image2},

    {ID:3, Image: Image3},

    {ID:4, Image: Image4},

    {ID:5, Image: Image5})

------------

If you like this post, give a Thumbs up. Where it solved your request, Mark it as a Solution to enable other users find it.

rwittels
Responsive Resident
Responsive Resident

Thank you for the reply. I am trying to use appImages.ID=1 in the image's Image property on the screen and it doesn't work. What is the correct syntax to access the image?

eka24
Community Champion
Community Champion

Yes ignore the extension.

In the image of the Gallery:

LookUp(appImages,ID=ThisItem.ID,Image)
 
Am assuming you have a common column like ID between your datasource for the Gallery and the Image collection.
 
Your can change the Name ID to and identical column 
------------

If you like this post, give a Thumbs up. Where it solved your request, Mark it as a Solution to enable other users find it.
rwittels
Responsive Resident
Responsive Resident

LookUp(appImages,ID=1,Image) works. If images were added as media, does adding them to a collection like this improve performance?

eka24
Community Champion
Community Champion

LookUp to the image is ok because the images are already in the App through a collection.

------------

If you like this post, give a Thumbs up. Where it solved your request, Mark it as a Solution to enable other users find it.

Hi Rwittels,

 

I have similar use case as you. My images are 5MB big and i have uploaded them in Power apps Media.

 

On the OnStart of the app i have created collection like this :

ClearCollect(ImageCache,

{ID : 1, Image : SS1},

{ID : 2, Image : SS2});

Here SS1,SS2 is the name of my image in media. I have ignored the PNG extension.

 

Now in the Image Property of an Image control i have used : 

LookUp(ImageCache,ID=1,Image)

 

For me it shows blank for both images.

 

Please tell me where am i doing wrong.

 

Thanks & Regards

Hi LionSense. Firstly, your code is correct. You probably haven't selected Run OnStart next to App at the top of Tree View. When you add code to OnStart and want to test it you have to select the 3 dots next to App and then Run OnStart. This will make your OnStart code available to the app in the Studio.

Please explain what you want to cache images OnStart for and do they have to be so big? Can't you optimise them?

I have learned a lot since I posted this in 2021. Back then I wanted to cache images that I would be using more than once in my app e.g. a company logo or a background graphic for a header or footer.

I now create components with the image I want to reuse (right of Screens in the Tree View). I then use the Insert menu and select my component under Custom to reuse it. This is the better way to do it.

It's the same as accessing a cached image as components load on start and are able to access app scope e.g. global variables for colour etc.

Thanks for the reply 🙂

 

Yes i have done the Run onstart thing and tested it. The image never loaded in my power app studio neither in the publish mode.

 

I cannot optimize the image as my company needs super HD background images. Still i have lessened the image size to 2MB. and the image loads in 3 seconds now which is still slow.

 

For me i have total of 6 screens which has huge BG images, loading them onstart will definitely lessen the load time but i dont know why the lookup is not working for me. If it worked for you it should work for me right?

 

As for the second approach, does creating images in a custom component and using that component actually loads the image onstart?

 

Sounds interesting, i will try and update you. 

can you please elaborate the second method you are talking about. I want to check if i am thinking the correct way.

 

Thanks and Regards

Hi. Sorry for the delay in getting back to you. Did you resolve your issue?
I have tested with images over 5Mb and they display when used as backgrounds with the code suggested.

Try this. It also works:

LookUp(ImageCache,ID=1).Image

I am just curious. Is your image resolution higher than the largest screen resolution the app will be viewed on e.g. your images are 4k but people are only viewing them on 1080p screens?

Helpful resources

Announcements

Update! June 13th, Community Ambassador Call for User Group Leaders and Super Users

Calling all Super Users & User Group Leaders     UPDATE:  We just wrapped up June's Community Ambassador monthly calls for Super Users and User Group Leaders. We had a fantastic call with lots of engagement. We are excited to share some highlights with you!    Big THANK YOU to our special guest Thomas Verhasselt, from the Copilot Studio Product Team for sharing how to use Power Platform Templates to achieve next generation growth.     A few key takeaways: Copilot Studio Cookbook Challenge:  Week 1 results are posted, Keep up the great work!Summer of Solutions:  Starting on Monday, June 17th. Just by providing solutions in the community, you can be entered to win tickets to Power Platform Community Conference.Super User Season 2: Coming SoonAll communities moving to the new platform end of July We also honored two different community members during the call, Mohamed Amine Mahmoudi and Markus Franz! We are thankful for both leaders' contributions and engagement with their respective communities. 🎉   Be sure to mark your calendars and register for the meeting on July 11th and stay up to date on all of the changes that are coming. Check out the Super User Forum boards for details.   We're excited to connect with you and continue building a stronger community together.   See you at the call!  

Win free tickets to the Power Platform Conference | Summer of Solutions

We are excited to announce the Summer of Solutions Challenge!    This challenge is kicking off on Monday, June 17th and will run for (4) weeks.  The challenge is open to all Power Platform (Power Apps, Power Automate, Copilot Studio & Power Pages) community members. We invite you to participate in a quest to provide solutions in the Forums to as many questions as you can. Answers can be provided in all the communities.    Entry Period: This Challenge will consist of four weekly Entry Periods as follows (each an “Entry Period”)   - 12:00 a.m. PT on June 17, 2024 – 11:59 p.m. PT on June 23, 2024 - 12:00 a.m. PT on June 24, 2024 – 11:59 p.m. PT on June 30, 2024 - 12:00 a.m. PT on July 1, 2024 – 11:59 p.m. PT on July 7, 2024 - 12:00 a.m. PT on July 8, 2024 – 11:59 p.m. PT on July 14, 2024   Entries will be eligible for the Entry Period in which they are received and will not carryover to subsequent weekly entry periods.  You must enter into each weekly Entry Period separately.   How to Enter: We invite you to participate in a quest to provide "Accepted Solutions" to as many questions as you can. Answers can be provided in all the communities. Users must provide a solution which can be an “Accepted Solution” in the Forums in all of the communities and there are no limits to the number of “Accepted Solutions” that a member can provide for entries in this challenge, but each entry must be substantially unique and different.    Winner Selection and Prizes: At the end of each week, we will list the top ten (10) Community users which will consist of: 5 Community Members & 5 Super Users and they will advance to the final drawing. We will post each week in the News & Announcements the top 10 Solution providers.  At the end of the challenge, we will add all of the top 10 weekly names and enter them into a random drawing.  Then we will randomly select ten (10) winners (5 Community Members & 5 Super Users) from among all eligible entrants received across all weekly Entry Periods to receive the prize listed below. If a winner declines, we will draw again at random for the next winner.  A user will only be able to win once overall. If they are drawn multiple times, another user will be drawn at random.  Individuals will be contacted before the announcement with the opportunity to claim or deny the prize.  Once all of the winners have been notified, we will post in the News & Announcements of each community with the list of winners.   Each winner will receive one (1) Pass to the Power Platform Conference in Las Vegas, Sep. 18-20, 2024 ($1800 value). NOTE: Prize is for conference attendance only and any other costs such as airfare, lodging, transportation, and food are the sole responsibility of the winner. Tickets are not transferable to any other party or to next year’s event.   ** PLEASE SEE THE ATTACHED RULES for this CHALLENGE**

Copilot Cookbook Challenge | Week 2 Results | Win Tickets to the Power Platform Conference

We are excited to announce the "The Copilot Cookbook Community Challenge is a great way to showcase your creativity and connect with others. Plus, you could win tickets to the Power Platform Community Conference in Las Vegas in September 2024 as an amazing bonus.   Two ways to enter: 1. Copilot Studio Cookbook Gallery: https://aka.ms/CS_Copilot_Cookbook_Challenge 2. Power Apps Copilot Cookbook Gallery: https://aka.ms/PA_Copilot_Cookbook_Challenge   There will be 5 chances to qualify for the final drawing: Early Bird Entries: March 1 - June 2Week 1: June 3 - June 9Week 2: June 10 - June 16Week 3: June 17 - June 23Week 4: June 24 - June 30     At the end of each week, we will draw 5 random names from every user who has posted a qualifying Copilot Studio template, sample or demo in the Copilot Studio Cookbook or a qualifying Power Apps Copilot sample or demo in the Power Apps Copilot Cookbook. Users who are not drawn in a given week will be added to the pool for the next week. Users can qualify more than once, but no more than once per week. Four winners will be drawn at random from the total qualifying entrants. If a winner declines, we will draw again at random for the next winner.  A user will only be able to win once. If they are drawn multiple times, another user will be drawn at random. Prizes:  One Pass to the Power Platform Conference in Las Vegas, Sep. 18-20, 2024 ($1800 value, does not include travel, lodging, or any other expenses) Winners are also eligible to do a 10-minute presentation of their demo or solution in a community solutions showcase at the event. To qualify for the drawing, templates, samples or demos must be related to Copilot Studio or a Copilot feature of Power Apps, Power Automate, or Power Pages, and must demonstrate or solve a complete unique and useful business or technical problem. Power Automate and Power Pagers posts should be added to the Power Apps Cookbook. Final determination of qualifying entries is at the sole discretion of Microsoft. Weekly updates and the Final random winners will be posted in the News & Announcements section in the communities on July 29th, 2024. Did you submit entries early?  Early Bird Entries March 1 - June 2:  If you posted something in the "early bird" time frame complete this form: https://aka.ms/Copilot_Challenge_EarlyBirds if you would like to be entered in the challenge.   Week 1 Results:  Congratulations to the Week 1 qualifiers, you are being entered in the random drawing that will take place at the end of the challenge. Copilot Cookbook Gallery:Power Apps Cookbook Gallery:1.  @Mathieu_Paris 1.   @SpongYe 2.  @Dhanush 2.   @Deenuji 3.  n/a3.   @Nived_Nambiar  4.  n/a4.   @ManishSolanki 5.  n/a5.    n/a   Week 2 Results:  Congratulations to the Week 2 qualifiers, you are being entered in the random drawing that will take place at the end of the challenge. Copilot Cookbook Gallery:Power Apps Cookbook Gallery:1. Kasun_Pathirana1. ManishSolanki2. cloudatica2. madlad3. n/a3. SpongYe4. n/a4. n/a5. n/a5. n/a

Celebrating the June Super User of the Month: Markus Franz

Markus Franz is a phenomenal contributor to the Power Apps Community. Super Users like Markus inspire others through their example, encouragement, and active participation.    The Why: "I do this to help others achieve what they are trying to do. As a total beginner back then without IT background I know how overwhelming things can be, so I decided to jump in and help others. I also do this to keep progressing and learning myself." Thank you, Markus Franz, for your outstanding work! Keep inspiring others and making a difference in the community! 🎉  Keep up the fantastic work! 👏👏   Markus Franz | LinkedIn  Power Apps: mmbr1606  

Your Moment to Shine: 2024 PPCC’s Got Power Awards Show

For the third year, we invite you, our talented community members, to participate in the grand 2024 Power Platform Community Conference's Got Power Awards. This event is your opportunity to showcase solutions that make a significant business impact, highlight extensive use of Power Platform products, demonstrate good governance, or tell an inspirational story. Share your success stories, inspire your peers, and show off some hidden talents.  This is your time to shine and bring your creations into the spotlight!  Make your mark, inspire others and leave a lasting impression. Sign up today for a chance to showcase your solution and win the coveted 2024 PPCC’s Got Power Award. This year we have three categories for you to participate in: Technical Solution Demo, Storytelling, and Hidden Talent.      The Technical solution demo category showcases your applications, automated workflows, copilot agentic experiences, web pages, AI capabilities, dashboards, and/or more. We want to see your most impactful Power Platform solutions!  The Storytelling category is where you can share your inspiring story, and the Hidden Talent category is where your talents (such as singing, dancing, jump roping, etc.) can shine! Submission Details:  Fill out the submission form https://aka.ms/PPCCGotPowerSignup by July 12th with details and a 2–5-minute video showcasing your Solution impact. (Please let us know you're coming to PPCC, too!)After review by a panel of Microsoft judges, the top storytellers will be invited to present a virtual demo presentation to the judges during early August. You’ll be notified soon after if you have been selected as a finalist to share your story live at PPCC’s Got Power!  The live show will feature the solution demos and storytelling talents of the top contestants, winner announcements, and the opportunity to network with your community.  It's not just a showcase for technical talent and storytelling showmanship, show it's a golden opportunity to make connections and celebrate our Community together! Let's make this a memorable event! See you there!   Mark your calendars! Date and Time: Thursday, Sept 19th Location: PPCC24 at the MGM Grand, Las Vegas, NV 

Tuesday Tip | Accepting Solutions

It's time for another TUESDAY TIPS, your weekly connection with the most insightful tips and tricks that empower both newcomers and veterans in the Power Platform Community! Every Tuesday, we bring you a curated selection of the finest advice, distilled from the resources and tools in the Community. Whether you’re a seasoned member or just getting started, Tuesday Tips are the perfect compass guiding you across the dynamic landscape of the Power Platform Community.   To enhance our collaborative environment, it's important to acknowledge when your question has been answered satisfactorily. Here's a quick guide on how to accept a solution to your questions: Find the Helpful Reply: Navigate to the reply that has effectively answered your question.Accept as Solution: Look for the "Accept as Solution" button or link, usually located at the bottom of the reply.Confirm Your Selection: Clicking this button may prompt you for confirmation. Go ahead and confirm that this is indeed the solution.Acknowledgment: Once accepted, the reply will be highlighted, and the original post will be marked as "Solved". This helps other community members find the same solution quickly. By marking a reply as an accepted solution, you not only thank the person who helped you but also make it easier for others with similar questions to find answers. Let's continue to support each other by recognizing helpful contributions. 

Top Solution Authors
Top Kudoed Authors
Users online (3,383)