GoogleCloudMessaging - InstanceID.getInstance (), registration from client
I am new to Java programming and programming in general. Now I decided to create my own application that should use Google Cloud Messaging. And for some reason I succeeded, but then I realized that I was using the method
String regid = gcm.register(PROJECT_NUMBER);
which is deprecated and now I have to use tokens and instance ids. So I tried rewriting my registration to use it, but I got a problem with InstanceID.getInstancer (). I followed all the steps carefully from the documentation https://developers.google.com/instance-id/guides/android-implementation and for some reason still doesn't work.
String authorizedEntity = "79424738XXXX";
String scope = "GCM";
String token = InstanceID.getInstance().getToken(authorizedEntity,scope);
Android Studio tells me that the error is:
getInstance () - "getInstance (Context) on InstanceID cannot be applied until 0"
Thanks in advance!
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Here is a working example at https://developers.google.com/cloud-messaging/android/start
git clone https://github.com/googlesamples/google-services.git
There they do in RegistrationIntentService.java
InstanceID instanceID = InstanceID.getInstance(this);
String token = instanceID.getToken(getString(R.string.gcm_defaultSenderId),
GoogleCloudMessaging.INSTANCE_ID_SCOPE, null);
gcm_defaultSenderId
- your project id ( 79424738XXXX
)
this
- this is RegistrationIntentService.this
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