等待UI线程完成

Question

I am running an instrumentation Activity test.

In that I need to perform some UI operations in one of the UI elements of the Activity.

So I am doing this in the UI thread of the Activity like this:

settingsActivity.runOnUiThread(new Runnable() {
    @Override
    public void run() {
        testSwitch.performClick();
    }
});

Every time I am hit by can not perform this action after onSaveInstanceState whenever the perform click is called.

A couple of things I have done:

• I have tried putting Thread.sleep() after the code but it is not working.
• I am not finishing the activity in the tear down. So, I don't know how the Activity is getting destroyed.

Cheers, Saurav

Answer 1

just do one thing No call for super(). I think its Bug on API Level > 11.

@Override
protected void onSaveInstanceState(Bundle outState) {
//No call for super(). Bug on API Level > 11.
}

or

If you need to save the instance, and add something to your outState Bundle you can use the following :

@Override
protected void onSaveInstanceState(Bundle outState) {
outState.putString("WORKAROUND_FOR_BUG_19917_KEY", "WORKAROUND_FOR_BUG_19917_VALUE");
super.onSaveInstanceState(outState);
}

Hope it will solve your problem. Goood luck :)