android - Display view defined inside activity -

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I have an activity 'A' which is called main activity until the timer runs out.

A is said to attract pulses until the timer is over 

  public class A extended activity {* some code * public class NestedView expands {public View {canvas canvas} on the zero {* Drag the pulses}}} I want to display the "pulse view" in the main "XML", which already has some buttons and scrollers, text boxes and so on. How can I reserve a part of the screen to display the pulses? I can not recreate the XML file because the above pulses are dynamic and in the image there is a red line entering the X axis for the user defined time. 
  
 
 
 You can not have "A" activity and main activity at the same time.  
 Instead, create a new view and add it to the layout in main.xml. See the documentation for an example It seems that section titled shape diagram can meet your needs.  
 Edit: You can view the view from within your activity by calling  (MyView) findViewById (R.id.my_view)  From there, you can configure your view Must be able to share priorities, etc. 
 
 Also, it can be useful when updating the UI on the timer.

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