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androidsqlite
Junaid Subhani
Junaid Subhani

Reputation: 41

How i can generate a unique ID every time in android even I re-install the application ?

I am stuck in a problem. Actually I need unique transaction ID every time uploading record to server. The data for 1 record is large so i can't keep all records in DB table. I tried to keep the transaction Id's in a table and set auto increment but when i uninstall the application it start generating the id's from 1. I tried android global variables which are set in start of application and are only accessible within the app. I need to set a global variable in android which can be accessed even I uninstall my application and then install again. System property also didn't work for me. Any suggestions how i can generate a unique ID every time ?

Upvotes: 0

Views: 3015

Answers (2)

Nayan Srivastava
Nayan Srivastava

Reputation: 3725

How about generating id with help of currentTimeMilliSeconds and mac Address;

WifiManager manager =(WifiManager)getSystemService(Context.WIFI_SERVICE);

WifiInfo info = manager.getConnectionInfo();
String address = info.getMacAddress();

String id=System.currentMilliSeconds()+address;

This will be unique every time for any device.

Upvotes: 0

Rahul
Rahul

Reputation: 1422

Generate a unique ID using this

public static String getImageUUID() {
    return UUID.randomUUID().toString();
}

Upvotes: 3

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