[mono-android] threads in c# vs java example, translated from mark murphy android tutorials

[Michael Isbell]

I'm reworking example number 8 (Threads) from Mark Murphy's Android Java
tutorials. Got it working the first time.

The code's so much more elegant, just wanted to share it

--------------------------------------------------------


       public override bool OnOptionsItemSelected(IMenuItem item)
        {
if (item.ItemId == Resource.Id.toast) {
 string message = "no restaurant selected";
 if (current != null) {
message = current.Notes;
}
 Toast.MakeText(this, message, ToastLength.Long).Show();
 return true;
} else if (item.ItemId == Resource.Id.run) {
 SetProgressBarVisibility(true);
 progress=0;
 new Java.Lang.Thread (delegate {
 for (int i=0;i<20;i++) {
RunOnUiThread(()  =>  { progress+=500; SetProgress(progress); });
Thread.Sleep(550);
  }
 RunOnUiThread(() => SetProgressBarVisibility(false));
}
 ).Start();
 return true;
}
 return base.OnOptionsItemSelected(item);
        }
--------------------------------------------

>From this Java code:

public boolean onOptionsItemSelected(MenuItem item) {
if (item.getItemId()==R.id.toast) {
String message="No restaurant selected";
 if (current!=null) {
message=current.getNotes();
}
 Toast.makeText(this, message, Toast.LENGTH_LONG).show();
 return(true);
}
 else if (item.getItemId()==R.id.run) {
setProgressBarVisibility(true);
progress=0;
new Thread(longTask).start();
 return(true);
}
 return(super.onOptionsItemSelected(item));
}
 private void doSomeLongWork(final int incr) {
runOnUiThread(new Runnable() {
public void run() {
progress+=incr;
setProgress(progress);
}
});
 SystemClock.sleep(250); // should be something more useful!
}

private Runnable longTask=new Runnable() { public void run() { for (int
i=0;i<20;i++) { doSomeLongWork(500); } runOnUiThread(new Runnable() { public
void run() { setProgressBarVisibility(false); } }); } };


-- 
Mike Isbell
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