Question

Possible Duplicate:
Launching intent from a class outside an activity

I was just wondering can a intent be used from a POJO class or must it be used in one that extends Activity? If it can how would you implement if?

public class DataManager{

public DataManager (){}


public void get ()
{
    Intent intent = new Intent (null,Webservice.class);
    intent.putExtra("uri", "http://someuri/service/users/id/21001");
    startActivity (intent);
}

}

Answer 1

Actually, startActivity() is method of Activity class. Not any java class method. So to access this method in other pojo class you have to use Context of activity.

You can do something like,

public class DataManager{

 Context mContext;

 public DataManager (Context context){
 mContext = context;
 }    

 public void get ()
 {
    Intent intent = new Intent (mContext,Webservice.class);
    intent.putExtra("uri", "http://someuri/service/users/id/21001");
    mContext.startActivity (intent);
 }
}

Update:

One thing to be noted is your Intent code line,

Intent intent = new Intent (null,Webservice.class);

what is null ? You have to put reference of Activity class as a first parameter of Intent constructor. Just check it.

So the code line will be,

Intent intent = new Intent (mContext,Webservice.class);