How to set text of text view in another thread

Question

I am tring to setText in another thread, that is, child thread. But for the following code, it is giving the error

Only the original thread that creat

Answer 1

Either you can use runOnUiThread or use Handler to set text in TextView.

Answer 2

Use runOnUiThread for updating the UI control. In your case:

runningActivity.runOnUiThread(new Runnable() {
    public void run() {
        tv.setText(p + " %");
    }
});

Edited:

Activity mActivity;
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    mActivity= this;
   ...
   ..//The rest of the code
} //close oncreate()

thread{
    mActivity.runOnUiThread(new Runnable() {
        public void run() {
            tv.setText(p + " %");
        }
    });
}

Answer 3

You need a reference to that textview and then do:

textView.post(new Runnable() {
    public void run() {
        textView.setText(yourText);
    } 
});

Answer 4

You can use handle :

handler.post(new Runnable() {
    public void run() {
        textView.setText(yourText);
    }
});

But your textView and yourText must be class fields.

In your thread (activity) where you create textView use:

Handler handler = new Handler();

And pass handler into another thread.