Android - first run preference initialization
I have next s开发者_运维问答ituation: After installing application it has to init settings from server. And while itis not has right preferences it has to wait. I have several receivers and service - I dont want to check for initialization in every action in these components - I think there have to be better solution. Can somebody help me with it? :)
You can have a static class that holds all of the initialization data and it can also hold a boolean for if the values are initialized.
You could also have a class that extends Application and do the initialization in that, so that way you can guarantee that it happens before anything else needs it.
Create a class which extends Application
. Initialize your application inside onCreate()
method, you can fill some fields of your class.
Then, from any receivers, services or activities, you can retrieve your application class with :
/* OnCreate method of MyApplication is executed at startup */
MyApplication myApp = (MyApplication) getApplication();
...
/* you can add any method to retrieve an initialized field */
myApp.getField()
You could also explore the SharedPreferences object. It provides the features you seek. You could have key-value pairs that you populate from your server call and in your code you just check if the preference value is what you expect.
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