Getting a user String in a dialog popup

In my Android code, I inflate the GUI and store a开发者_开发问答ll the sub-elements in a different class. In that class, I want to add a method to read a user input from. I tried to follow something like in this link but no matter what I do, it boils down into copying a final value into a non final value. I though about creating another gui but couldn't fins a way to do so. Here is the method I have now:

private String setText(int id){
        AlertDialog.Builder alert = new AlertDialog.Builder(this.show);
        final EditText input = new EditText(this.show);
        alert.setView(input);
        String out;
        alert.setPositiveButton("OK", new DialogInterface.OnClickListener() {
            //@Override
            public void onClick(DialogInterface dialog, int which) {
                Editable value = input.getText();
                out = value.toString();
                // TODO Auto-generated method stub

            }
        });

    }
}

Which I use to return a string into another method which set the value of the TextView.

I tried to do the following trick:

private String setText(){

    AlertDialog.Builder alert = new AlertDialog.Builder(this.show);
    final EditText input = new EditText(this.show);
    alert.setView(input);
    String out;
    alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {

        @Override
        public void onClick(DialogInterface dialog, int which) {
            input.setText("canceled");
        }
    });
    alert.setPositiveButton("OK", new DialogInterface.OnClickListener() {

        @Override
        public void onClick(DialogInterface dialog, int which) {


        }
    });
    alert.show();
    String toSend = input.getText().toString();
    this.maxT.setText(toSend);
    return toSend;

maxT is a TextView field. The app simply place an empty string. I figure that I should wait until the AlertDialog is closed, I'm searching for a way to do so.

Just set the id of your View and reference it:

private String setText(int id){
    AlertDialog.Builder alert = new AlertDialog.Builder(this.show);
    EditText input = new EditText(this.show);
    input.setId("myInput");        
    alert.setView(input);
    String out;
    alert.setPositiveButton("OK", new DialogInterface.OnClickListener() {
        //@Override
        public void onClick(DialogInterface dialog, int which) {
            EditText input = (EditText) dialog.findViewById("myInput");
            Editable value = input.getText();
            out = value.toString();               

        }
    });

}

}

View: setId() API

Dialogs onClick: onClick() API

You can create a custom dialog and access the ID that way. If you want to use an alert dialog you can try this:

First create a layout with a single editText:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent">
<EditText android:text="Stateful"
android:id="@+id/EditText01"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</EditText>
</LinearLayout>

Then inflate this layout as in:

AlertDialog.Builder builder= new AlertDialog.Builder(this);
LayoutInflater inflater= getLayoutInflater();
final View myView= inflater.inflate(R.layout.alert_dialog_text_entry, null);
builder.setTitle("About");
builder.setMessage(alertMessage+"Version: "+versionName);
builder.setView(myView);
AlertDialog alert= builder.create();

Good post by Tony Stark here and you can beautify your dialog by adding an icon .. Make sure you have the picture in your drawable folder.

 builder.setTitle("Message Sent!").setCancelable(false).setNegativeButton("Close",new DialogInterface.OnClickListener() 
                            {public void onClick(DialogInterface dialog, int id) {dialog.cancel();}});
                            AlertDialog alert = builder.create();
                            alert.setIcon(R.drawable.send);//call your image for your icon here
                            alert.show();

Example