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App crashes to previous activity

Hello, I am making a math puzzle game and I need some help. So, basically my app swaps pictures (the math problems) and the user has to write the answers. In the current build of my app going from the 1st all the way to the 40th problem is fine, but going (swapping pictures) to the 41st (note: the 41st is my last problem so there isn't a 42nd) "crashes" the app to the previous activity (the menu). I checked and I am pretty sure that all my arrays/lists are of size larger than 41. Anyone know what could be the issue? Thanks for your time.

How to access and store files in Android/data folder in android 11

I'm sure you can do it if the device is rooted. I don't know of a way of doing this without root, but because of the ways this could be abused by malware I hope you'll forgive me if I also hope that there isn't one.
Bro i am developing an app so i can't root everyone's device. I need a way. Google has just changed a way to access these folders and we should try thing that work out.

Hmm... synching in my (Spiral Orc) Moto Edge Plus with my desktop.. It is somewhat slower

Call me curious as the kitty is well in its death bed..
But almost every time I try synching in my (Spiral Orc) Moto Edge Plus with my desktop..
It is somewhat slower when connecting and transferring files, around 1,000 I upload to my desktop, about every five to six days, so I am wondering if it is the size of the photos I taken per pixelation, or even the size of how much my old and broken down on it's final years of my desktop, even though I just got it fixed last year to the date.

Please help identify these app icons

Oh my goodness, I thought I did post them...maybe I didn't do it right. I will try again...
Six is motion sensor if you have a Moto cell phone like I do, that is to turn on the camera I believe it is :)
Samsung Galaxy internet explorer is the globe, google photos is the first icon, google play is the triangle one, assistance is the circle one. Five I believe it is another Samsung app, called "Wallet?" I am not so sure on that one ontop of my head :)

Apps WhatsApp like calling notification in android even if app is killed

Use firebase push notification, and get device token while registering the user. Then whenever use tries to call another user then notification will be pushed to that user device and your app can be triggered with that push notification.
1. Learn how to get device token
2. Learn Firebase push notification.
3. Store Generated user's device token in your server.
4. Register firebase braodcast receiver in your manifest.
5. Code and Enjoy!

Help First recent Android phone. A little help please.

I really do not use the camera much, but yes, I have also been disappointed.

This could be due to a dirty lens (I work in a filthy environment), low light situations, or maybe the camera is just not that good.

If I was interested in taking pictures of any value, I would buy a camera, not a.phone.

I get the 'convenience' factor, but in truth their is no beating a quality product that is devoted to a single task.

Maybe if I messed with the camera more, it would interest me more. I just do not hardly use it at all. I take less than five photos a month usually, and these are usually just to show someone something and then they are deleted.

Because of security issues, I do use a non-native camera app (Simple Camera) that can sometimes cause issues on certain devices- but as far as picture quality goes, none that I am aware of.

Accessories PSA: Tempered Glass Screen Protectors

The Pixel 6 and Pixel 6 Pro are the first Google devices to use an optical under-display fingerprint sensor. These work by illuminating the spot where you place your finger so that the camera under the screen can see your fingerprints.

Many users have already found that some tempered glass screen protectors may interfere with the operation of the fingprint sensor, likely because the extra layer of glass causes too much internal reflection for the optical sensor to get a good look.

Your best guarantee for getting a screen protector which won't negatively impact the fingerprint sensor operation is to stick to products which are certified under the Made for Google program. These have been tested by Google to confirm that they will fit and function correctly. This 9to5Google article has a listing of specific products and where you can buy them.

Screen protectors from other companies might work, but if you stray from the Made for Google certified products I would definitely double-check the product description to make sure it is compatible with the fingerprint sensor. At least then you might have some recourse if it doesn't work correctly.

Help Confused about mobile data

I couldn't recieve photo messages or go online. I thought I ran out or used it all up for the month, but actually it doesn't seem like I did.
Also what is the difference between mobile and roaming (if there is a difference)?

Most prepaid carriers only give you a small amount of roaming data per month (data on another carriers network).

It's possible you don't have a good enough signal to use data, or are roaming and used up your small monthly amount.

It's bot just like "oh this is a deadzone," it seems like places that everyone else has normal strong connection.
Are those other people using the same network as you? If they're on AT&T or Verizon their signal will be different then yours.

Have you gotten a new Boost Mobile SIM that uses T-Mobile? If you have an old Sprint SIM and they decommissioned Sprint towers in your area after T-Mobile bought Sprint that might cause worse reception.

If T-Mobile simply doesn't have good coverage where you are I'd recommend switching to a carrier using AT&T or Verizon.

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