You need to have a reference to the other activity, from which you would call your second (or third) activity's method to update the coordinates
For example, your second activity could have a static method to return the component/widget or entire activity. SecondActivity.java ---------------------- public static Canvas getCoordinateCanvas() { return this.myCanvas; } FirstActivity.java -------------------------- private void someMethod() { Canvas canvasToUpdate = SecondActivity.getCoordinateCanvas(); canvasToUpdate.<your update code> } On Jul 28, 5:49 pm, Victor Basurto <victor.b.r....@gmail.com> wrote: > Hi, I'm new in android, i have a problem, i have 3 activities, in the > first one i have a map where i want to draw a point with a coordinates > that obtain in the second activity and third one i have a picture, but > i want to use and refresh this coordinates and navigate between > activities one and third, how can i refresh this coordinates obtained > in the second activity without go to this. > > Thanks excuses for my english -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en