Vibrator | Play system vibrations and Apple Haptic Audio Pattern | iOS library

Currently my app has 4 activities and everything is fine as I want it to be until the app comes to the 3rd activity. Instead of going to the next activity i.e, 4th activity. It goes back to the 2nd activity from the 3rd activity.

I also tried adding a button in the main activity which would take me directly to the 4th activity and when I clicked the button, the app just crashed.

In the third activity I have a count down timer and i want the app to go to the next activity after the timer is finished. So in the OnFinish function the code is:

Hi have this code in android, if you see in line with a comment //show a dialog box whe i run the app everything goes fine, i can read a qr code correctly. But when i read a valid QRCode and popups the dialog box the camera continuos reading the qr code so if i let the phone in the same position the qrcode was read many times.

I want to stop the reading of the camera until i pres yes or no in the dialog box.

(i'am new in Android so please help me.!!)

regards

I am working on an Android App with a Database and I am having troubles in passing the right context to my Database Handler, as the instance of the App Context that I am passing to the Database Handler seems to be always null; as I have been working on this for hours to make it work, I would appreciate any hints or constructive Feedback to make this work.

The app crashes always with the same Null Pointer Exception:

Well i need to get 2 values together from a XML,

I need the property and the titel of the property's to get property:titel; There are multiple property's and titels, but not every product has the same amount of property's. So i like to create it on the fly

I have tried it with a .join but kan get it like working yet.

The code to get it from:

I'm suddenly getting "cannot resolve" errors for findViewById(int) and setContentView(). I don't want to get into the knitty gritty of what my app does, but it was running fine until suddenly it wasn't after some time working on unrelated functions, with no changes made to the code. I tried reverting to a previous day when I was able to get the code to run, but the issue persists.

I've looked through a lot of help threads, and I've tried the "Invalidate Caches/Restart" option, but that didn't have any effect unfortunately

I have an app that is using BLE connectivity with my device. Everything works from connecting to the device, discovering the services, writing the characteristic and descriptor. But for some reason, onCharacteristicChanged is not triggering. The goal is to retrieve the data from the characteristic that is in the characteristic. I have tried using a different characteristic from the same service and this works as in retrieving the data. Not sure why this specific characteristic is not working when others are.

Here is my code: //Descriptor public final static UUID UUID_CLIENT_CHARACTERISTIC_CONFIG = UUID.fromString(GattAttributes.CLIENT_CHARACTERISTIC_CONFIG);

I have een xml feed, I'd like to get te categorie and the subcategorie from this line of the xml:

with:

I'm trying to repurposed my Sony Xperia Z3 Compact into a lcd display project. In order to proceed, I would like to mod my Xperia phone so that the phone will automatically turn on when charger turn ON. I search around and found some script like https://android.stackexchange.com/questions/20021/automatically-power-on-android-when-the-charger-is-connected and some people mentioned that I should mod chargemon file. But when I replace this file, my phone cannot boot into the system.

I have used Service to keep my scan for android mobiles even when the app is closed. I used Broadcast receiver to restart my service when killed. It restarts the scanning and it works only for some 15 seconds and then stops When i click button1 in {MainActivity} I started the service and have called startdiscovery() in startCommand method in {ExampleService} Please Help me in running the app in background

MainActivity.java