I'm creating an AndEngine game for Android in eclipse & java. I created my own activity class and added it to application attributes in my Android manifest. But it said "com.myname.projectname.Activity does not extend android.app.Application". It extends SimpleBaseGameActivity but I heard that it should work well in this status.
What may the problem be? And how can I solve this?
I think in your project , there is some Application_class and inside another class you are using , Application_class instance in your Activity , and that Application_class is not extending Application class .
public class ApplicationClass extends Application
{
public static Context appContext;
}
Related
the clip of the code written for using voice interaction which is used in another Java file I have already tried importing android.app.VoiceInteractor but its not working
You may have imported all necessary classes in your code. As your snippet you forgot to extend that, But you are already extending AppCompatActivity so that you can't extend another class in the same Activity. What you need to do is create another class inside MyVoiceActivity and extend VoiceInteractor.ConfirmationRequest in that class.
Your Activity will look something like this
public class MyVoiceActivity extends AppCompatActivity{
class Confirm extends VoiceInteractor.ConfirmationRequest {
//All method you wanted goes here
}
}
I'm new to android programming how to extend two activity . In my case I'm using ActionBarActivity
im already extends the a class for some functionalities how shall i extend two activities my class
any example code will be more useful for me
This is not much of a Android problem (as Activity is class as any other), it's the way Java works.
Java doesn't support multiple inheritance, so classes can only extend one other class.
class A extends B{
}
Even in this case:
class A {
}
class A extends another class - Object - but it is automatically implied without having to specify it.
If you want to ensure some functionality from several sources you will have to use interfaces and the implements keyword:
class A extends B implements C,D,E {
}
I have to do capture Applaunch and App minimize events for myapp for Appirater integration. I have to show Appirater dialog for every 3rd app launch/app minimize
I followed the article
http://vardhan-justlikethat.blogspot.in/2013/05/android-solution-to-detect-when-android.html
But i have a problem, i have many activities,fragments in Application.say some Activities extends FragmentActivity, some of the them are fragments and some of them extends Activity
But, as per the article, i have to extend all the activities using Base Activity
It implies the architecture changes for my application.
If i write the code separate for each activities, the Appirater wonk work proper. Any alternatives to this ? please help in fixing
Tried also by extending Application class but it can capture app minimze events
Create a BaseActivity And a BaseFragmentActivity that does the same as the BaseActivity in the example, and then extend them in the appropriate places, should still work the same and you don't have to do much work. Correct me if I'm wrong, I just skimmed through it
Edit, example:
public class BaseActivity extends Activity{
//everything
}
and the other
public class BaseFragmentActivity extends FragmentActivity{
//everything
}
I am making an app in which i have to run an activity in background until the app is running.each activity related to this app is using first activity.how can it possible?
can i use the inheritance for this?
can anyone tell me any example of multilevel interitance in android?
You can create a BaseActivity class that extends Activity and all other Activities will extend this BaseActivity. Then what ever happened in all other activities (like resume and pause) will also effect the actions of BaseActivity.
If you have to accomplish background task you better to see android service
You are already extending the Activity class in a base class, and again you are extending this base class in other class. This is itself an example of multilevel inheritance. I am posting an example that may be relevant for your question:
public class basecls extends Activity{
/*The base class*/
}
public class secondcls extends basecls{
/* basecls extended by secondcls */
}
You can extend the secondcls in another class, and the new class will inherit all super classes such that you can use the methods of its super classes.
Your main activity is already using inheritance, since it extends the Activity class.
Hi
I am trying to extend my main entry point with a superclass (so I don't have to override onCreateOptionsMenu in each activity i got for example) but for some reason it seems I am not allowed to do this with the class I got set as my main entry point for my application in android.
For example: MainClass extends Activity works fine but MainClass extends mySuperClass where mySuperClass extends Activity does not work - anyone got any idea if I am doing something wrong or if this is an android specific issue?
Thanks for any help or input!
All Android Activity classes MUST extend an Activity base class. Your superclass definition must be missing something: post the class definition.