I have this code, this works perfect. Only i want to make this dynamic without the xml file(actions.xml). How do i do that?
public void showPopup(View v) {
    PopupMenu popup = new PopupMenu(this, v);
    MenuInflater inflater = popup.getMenuInflater();
    inflater.inflate(R.menu.actions, popup.getMenu());
    popup.show();
}
                Use popup.getMenu() and then add items directly using the various overloads of add.
in the xml file remove unused items (just to implement menu theme). So, it'll be like :
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:theme="@style/AppTheme" />
then use getMenu to add new menu items as below:
Button btn1= (Button) findViewById(R.id.btn_test);
PopupMenu popup = new PopupMenu(yourFormName.this, btn1);  
                    //Inflating the Popup using xml file  
                 popup.getMenu().add("Menu1 Label");
                 popup.getMenu().add("Menu2 Label");
                 popup.getMenuInflater().inflate(R.menu.YourXMLFileName, popup.getMenu());  
                    //registering popup with OnMenuItemClickListener  
                    popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {  
                     public boolean onMenuItemClick(MenuItem item) {  
                       //---your menu item action goes here ....
                      Toast.makeText(DisplayTransactions.this,"You Clicked : " + item.getTitle(),Toast.LENGTH_SHORT).show();  
                      return true;  
                     }  
                    });  
                    popup.show();//showing popup menu  
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