Question

In my app I send some intent extras from one activity to another. But some users report back that these data are always zero – even though I can see the values are alright in the sending activity.

Here’s the code of the sending activity:

Intent intent = new Intent();
intent.setClass(waypointListView.this, addWaypointActivity.class);
intent.putExtra("latitude", String.format("%9.6f", globLatitude));
intent.putExtra("longitude", String.format("%9.6f", globLongitude));
startActivityForResult(intent, ACTIVITY_ADD_WAYPOINT);

And this is how it’s read in the new activity:

Intent myIntent = getIntent();
String latitudeStr = myIntent.getExtras().getString("latitude");

try{
  globLatitude = Float.parseFloat(latitudeStr);
} catch(NumberFormatException nfe) {    
  globLatitude=0f;
}

String longitudeStr = myIntent.getExtras().getString("longitude");

try{
  globLongitude = Float.parseFloat(longitudeStr);
} catch(NumberFormatException nfe) {    
  globLongitude=0f;
}

On both my devices it works fine, but I have 3 cases of customers complaining that it doesn’t work (documented in video recordings).

Any suggestions?

Answer 1

I tried to change the code to use getFloatExtra() instead of getString and parse it to a float, and it solved the problem. I see this is a lot more efficient, but I still don’t understand why the original solution worked on some devices but not on others.

Case closed!