Question

I’ve got completely no idea why application is stopping unexpectedly when encounters commented lines in the code below.

public class Foo {
    private ExitText    input;

    public FooExitText input) {
        this.input = input;
    }

    public void start() {

        // everything is okay:
            input.requestFocus();
            input.setOnKeyListener(new EntryCheckListener());
            input.setEnabled(false);

        // PROBLEMS!:   
            ExecutorService exec = Executors.newSingleThreadExecutor();
            exec.execute(new Runnable() {
                public void run() {
                    synchronized (Foo.this) {


                    //  input.setEnabled(false);    

                        for(int i=0; i<5; ++i) {
                            //input.setText("test" + i);
                        }

                    //  input.setEnabled(false);

                    }

                }
            });
    }
}

P.S.
What does it mean? :/

“Oops! Your edit couldn’t be submitted because:

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Answer 1

You are not allowed to modify the UI from thread other then the main thread. Consider using AsyncTask.

A nice tutorial can be found in the Android site.