I am using ActivityInstrumentationTestCase2 to do some test for an
activity.
I get a button in the setUp() method like this:
protected void setUp() throws Exception {
super.setUp();
act = getActivity();
........
btn = (Button)act.findViewById( R.id.bike_button ); // this
button has been defined in layout
}
Then I use this button to perform a click in a test method like this:
public void testBikeButton(){
//click the bike button
btn.performClick();
......
}
When run it as android junit, there will be an error like this:
"android.view.ViewRoot$CalledFromWrongThreadException: Only the
original thread that created a view hierarchy can touch its views.
at android.view.ViewRoot.checkThread(ViewRoot.java:2440)
at android.view.ViewRoot.playSoundEffect(ViewRoot.java:2261)
at android.view.View.playSoundEffect(View.java:7457)
at android.view.View.performClick(View.java:2178)
at com.liufeng.vehicle.test.BikeTests.testBikeButton(BikeTests.java:
40)
at java.lang.reflect.Method.invokeNative(Native Method)
at android.test.InstrumentationTestCase.runMethod
(InstrumentationTestCase.java:191)
at android.test.InstrumentationTestCase.runTest
(InstrumentationTestCase.java:181)
at android.test.ActivityInstrumentationTestCase2.runTest
(ActivityInstrumentationTestCase2.java:175)
at android.test.AndroidTestRunner.runTest(AndroidTestRunner.java:164)
at android.test.AndroidTestRunner.runTest(AndroidTestRunner.java:151)
at android.test.InstrumentationTestRunner.onStart
(InstrumentationTestRunner.java:418)
at android.app.Instrumentation$InstrumentationThread.run
(Instrumentation.java:1520)"
How do I fix it?
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