android - Showing a DialogFragment object from an on click inside a button listener -

i trying showing dialogfragment object on click inside button listener.

here code of activity should start dialog:

import android.os.bundle; import android.app.activity; import android.content.context; import android.content.intent; import android.view.menu; import android.view.view; import android.view.view.onclicklistener; import android.widget.button;  public class mainactivity extends activity {  button button1; @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);     addlistenertobutton1(); }  private void addlistenertobutton1(){     final context context = this;       button1 = (button) findviewbyid(r.id.button1);      button1.setonclicklistener(new onclicklistener() {         @override         public void onclick(view arg0) {              dp ciao = new dp();             ciao.show(this,"mydp");         }     }); } } 

and here's code of dialog:

public class dp extends dialogfragment {  @override public dialog oncreatedialog(bundle savedinstancestate) {     // use builder class convenient dialog construction     alertdialog.builder builder = new alertdialog.builder(getactivity());      builder.setmessage("prova")     .setpositivebutton("pos", new dialoginterface.onclicklistener() {         public void onclick(dialoginterface dialog, int id) {          }     })     .setnegativebutton("neg", new dialoginterface.onclicklistener() {         public void onclick(dialoginterface dialog, int id) {          }     });     return builder.create(); } } 

errors are:

• the method show(fragmentmanager, string) in type dialogfragment not applicable arguments (mainactivity, string)

• the method show(fragmentmanager, string) in type dialogfragment not applicable arguments (new view.onclicklistener(){}, string)

any advice?

try method of passing correct context dialogfragment

button1.setonclicklistener(new onclicklistener() {     @override     public void onclick(view view) {          dp ciao = new dp();         ciao.show(view.getcontext(),"mydp");     } }); 

in original code, when calling

'ciao.show(this,"mydp");' 

the refers parent class onclicklistener.

when assigning click listener , overriding onclick, passed view , argument can use access information from, including context.