Wrong value in EditText when changing screen orientation

Question

Im confused.

I have a layout (LinearLayout) holding a TextView and EditText. Somewhere in my code i create (programatically) a RelativeLayout and push in it several of this LinearLayouts. To each one of them i set an ID and values for TextView and EditText.

The problem is when i change screen orientation. All EditText controls gets the same value (from the last EditText). If i set a breakpoint all seems fine. I even inspected all elemets before setContentView is called and all values seem fine.

Any idea?

Here is the relevant part of code:

@Override
public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  csWgs84 = getCoordinateSystem();
  wgs84C = getCoordinates();
  sView = new ScrollView(this);
  layout = getLayoutInflater().inflate(R.layout.location_calculator, null);

  View control1 = getLayoutInflater().inflate(R.layout.text_edit, null);
  control1.setId(1);
  TextView title1 = (TextView) control1.findViewById(R.id.title);
  title1.setText(csWgs84.axisInfo.yAxisAbbreaviation + " [°] :");
  EditText value1 = (EditText) control1.findViewById(R.id.input);
  value1.setInputType(InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_FLAG_DECIMAL);
  value1.setText(cutValue(RSimpleFormatter.formatNumber(wgs84C.y, 1, 7, '.'), 12));
  RelativeLayout.LayoutParams viewLayoutParams1 = new RelativeLayout.LayoutParams
    (RelativeLayout.LayoutParams.FILL_PARENT,RelativeLayout.LayoutParams.WRAP_CONTENT );
      viewLayoutParams1.addRule(RelativeLayout.BELOW, group.getId());
  ((RelativeLayout) layout).addView(control1, viewLayoutParams1);

  View control2 = getLayoutInflater().inflate(R.layout.text_edit, null);
  control2.setId(2);
  TextView title2 = (TextView) control2.findViewById(R.id.title);
  title2.setText(csWgs84.axisInfo.xAxisAbbreaviation + " [°] :");
  EditText value2 = (EditText) control2.findViewById(R.id.input);
  value2.setInputType(InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_FLAG_DECIMAL);
  value2.setText(cutValue(RSimpleFormatter.formatNumber(wgs84C.x, 1, 7, '.'), 12));
  RelativeLayout.LayoutParams viewLayoutParams2 = new RelativeLayout.LayoutParams
  (RelativeLayout.LayoutParams.FILL_PARENT,RelativeLayout.LayoutParams.WRAP_CONTENT );
     viewLayoutParams2.addRule(RelativeLayout.BELOW, control1.getId());
    ((RelativeLayout) layout).addView(control2, viewLayoutParams2);

  sView.addView(layout, scrollViewLayoutParams);
  setContentView(sView);
}

Answer 1

I had the same problem. I don't know why it happens; it happens in one of my activities but not in another one that I think is almost identical. I haven't investigated it extensively though.

However, I came up with a workaround: Populate the EditTexts in onResume() instead of in onCreate(). (I also tried to populate them in onStart, but then I got the same fault.) I hope that may work for you or anyone else reading this thread.

Answer 2

If the (admittedly usually very clever) default onPause() method isn't dealing well your activity being pushed to memory and being reloaded from it then you need to override it.

Use onPause to save the value's of your programatically created fields in a bundle. In your onCreate method check for the presence of a Bundle and create you're view's from this.

Activity Lifecycle