java.lang.IllegalStateException: System services not available to Activities before onCreate()

问题

I am getting an exception :

java.lang.IllegalStateException: System services not available to Activities before onCreate()

while reinitializing layoutInflater in onResume() like :

layoutInflater = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);

I am trying to updatethe The content of view flipper. Can anyone suggest me the corrections in this to resolve the exception.

回答1:

Behold:

public class MyActivity extends Activity {

    // LayoutInflater inflater = (LayoutInflater) context 
    //         .getSystemService(Context.LAYOUT_INFLATER_SERVICE); // NOT CORRECT
    LayoutInflater inflater; // correct

    @Override
    protected void onCreate(Bundle saved) {
        super.onCreate(saved);
        inflater = (LayoutInflater) context 
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE); // correct
    }
}

来源：https://stackoverflow.com/questions/23441694/java-lang-illegalstateexception-system-services-not-available-to-activities-bef