PersianDate | Persian date for android | Calendar library

With this code, I able to get selected date as unix. jsfiddle

I get my model name wrongly instead of getting this way

I have a dialog with the following code that shows several mat-card. The code works perfectly with ngfor and shows what I expect. But because the number of cards was large, I decided to use cdkScrolling , but when I added the code, it did not show anything, even though it was rendered in the code. And the page is displayed almost blank. Does anyone know what the problem is? Did I implement it incorrectly?

dialog.html:

Consider the following code snippet :

In my project After add Exoplayer 2.10.5 in my app.gradle file I get this error:

my gradle version is 3.5.2

I set a program to send data from the android app to a microcontroller through bluetooth using SPP. mentioned microcontroller device sends a response back after 150 milisec as processing time. My app receives an appropriate response by bluetooth response handler as RecieveBuffer.And application must send data again for the case when the microcontroller doesn't send an appropriate. I used a while conditional statement like below to send data alternatively until getting a response (send flag is true after app gets an appropriate response by bluetooth response handler class).