Question

hi i am new developer on android i have written code for display simple dialog,in this dialog i have taken edit text view.when i entered text on edit text then i have changed orientation of the scree then the value of edit text has not appearing!

i have written code as follows

AlertDialog.Builder alert = new AlertDialog.Builder(this);  

alert.setTitle("Title");  
alert.setMessage("Message");  

// Set an EditText view to get user input   
final EditText input = new EditText(this);  
alert.setView(input);  

alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() {  
public void onClick(DialogInterface dialog, int whichButton) {  
  String value = input.getText();  
  // Do something with value!  
  }  
});  

alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {  
  public void onClick(DialogInterface dialog, int whichButton) {  
    // Canceled.  
  }  
});  

alert.show(); 

please any one can resolve this?

Answer 1

Basically, this involves overriding the onRetainNonConfigurationInstance method.
See here:
Faster Screen Orientation Change

Excerpt:

“The Activity class has a special
method called
onRetainNonConfigurationInstance().
This method can be used to pass an
arbitrary object your future self and
Android is smart enough to call this
method only when needed. In the case
of Photostream, the application used
this method to pass the downloaded
images to the future activity on
orientation change.”