Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
In my app, I’ve got 3 tabs. On clicking on each individual tab, some tab specific task happens. Now I am supposed to test the scenario of changing tabs from an android test project. In order to do that, I’ve called getTabHost.setCurrentTab(int tabIndex) method. But an error has been thrown saying
android.view.ViewRoot$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views.
The exception is quite self explanatory: “Only the original thread that created a view hierarchy can touch its views.” In other words, you’re trying to change the current tab from a different thread than the one that created it. More specifically, you have to do this action on the widget from the GUI thread – the thread that created the view hierarchy.
So you either have to move your
setCurrentTab(int tabIndex)call to the GUI thread, or use a message mechanism. The latter is usually done using aHandler. Plenty of good examples and code snippets ‘out there’ that can show you how to go about this.