How to display Toast in a thread : Android

java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
    at android.os.Handler.(Handler.java:154)
    at android.widget.Toast.(ExampleToast.java:78)
    at android.widget.Toast.makeText(ExampleToast.java:245)

myActivity.runOnUiThread(new Runnable() {
  public void run() {
    Toast.makeText(myActivity, "Toast Message Text!", Toast.LENGTH_LONG).show();
  }
});

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