Espresso openActionBarOverflowOrOptionsMenu 导致 NoMatchingViewException
Espresso openActionBarOverflowOrOptionsMenu causes NoMatchingViewException
我刚刚开始试验 Android 的 Espresso 测试框架，我想做的第一件事是单击 activity 选项菜单中的 "Settings" 按钮。但是，当我尝试调用 openActionBarOverflowOrOptionsMenu(getInstrumentation().getTargetContext()) 时，测试崩溃并出现此异常
android.support.test.espresso.NoMatchingViewException: No views in hierarchy found matching: ((is displayed on the screen to the user and with content description: is "More options") or (is displayed on the screen to the user and with class name: a string ending with "OverflowMenuButton"))
View Hierarchy:
+>DecorView{id=-1, visibility=VISIBLE, width=800, height=1232, has-focus=true, has-focusable=true, has-window-focus=true, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0, child-count=1}
|
+->LinearLayout{id=-1, visibility=VISIBLE, width=800, height=1232, has-focus=true, has-focusable=true, has-window-focus=true, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0, child-count=2}
|
+-->ViewStub{id=16909074, visibility=GONE, width=0, height=0, has-focus=false, has-focusable=false, has-window-focus=true, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=true, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0}
|
+-->FrameLayout{id=16908290, res-name=content, visibility=VISIBLE, width=800, height=1207, has-focus=true, has-focusable=true, has-window-focus=true, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=25.0, child-count=1}
|
+--->RelativeLayout{id=-1, visibility=VISIBLE, width=800, height=1207, has-focus=true, has-focusable=true, has-window-focus=true, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0, child-count=9}
|
+---->ImageView{id=2131361813, res-name=main_logo, desc=logo, visibility=VISIBLE, width=768, height=158, has-focus=false, has-focusable=false, has-window-focus=true, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=16.0, y=36.0}
|
+---->Button{id=2131361814, res-name=main_new_button, visibility=INVISIBLE, width=210, height=48, has-focus=false, has-focusable=false, has-window-focus=true, is-clickable=true, is-enabled=true, is-focused=false, is-focusable=true, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=295.0, y=232.0, text=New forest, input-type=0, ime-target=false, has-links=false}
|
+---->Button{id=2131361815, res-name=main_load_button, visibility=VISIBLE, width=210, height=48, has-focus=true, has-focusable=true, has-window-focus=true, is-clickable=true, is-enabled=true, is-focused=true, is-focusable=true, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=295.0, y=310.0, text=Load forest, input-type=0, ime-target=true, has-links=false}
|
+---->Button{id=2131361816, res-name=satform_download_button, visibility=VISIBLE, width=210, height=48, has-focus=false, has-focusable=true, has-window-focus=true, is-clickable=true, is-enabled=true, is-focused=false, is-focusable=true, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=295.0, y=388.0, text=Download, input-type=0, ime-target=false, has-links=false}
|
+---->Button{id=2131361817, res-name=main_resume_button, visibility=GONE, width=0, height=0, has-focus=false, has-focusable=false, has-window-focus=true, is-clickable=true, is-enabled=true, is-focused=false, is-focusable=true, is-layout-requested=true, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0, text=Continue, input-type=0, ime-target=false, has-links=false}
|
+---->ToggleButton{id=2131361818, res-name=marking_mode_toggle, visibility=VISIBLE, width=223, height=48, has-focus=false, has-focusable=true, has-window-focus=true, is-clickable=true, is-enabled=true, is-focused=false, is-focusable=true, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=288.0, y=466.0, text=Auto Marking RFID mode, input-type=0, ime-target=false, has-links=false, is-checked=false}
|
+---->ProgressBar{id=2131361819, res-name=progress_bar, visibility=GONE, width=0, height=0, has-focus=false, has-focusable=false, has-window-focus=true, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=true, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0}
|
+---->TextView{id=2131361820, res-name=progress_text, visibility=GONE, width=0, height=0, has-focus=false, has-focusable=false, has-window-focus=true, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=true, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0, text=Please wait…, input-type=0, ime-target=false, has-links=false}
|
+---->TextView{id=2131361821, res-name=version_text, visibility=VISIBLE, width=210, height=25, has-focus=false, has-focusable=false, has-window-focus=true, is-clickable=true, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=295.0, y=1128.0, text=version:0.7.0, input-type=0, ime-target=false, has-links=false}
|
at dalvik.system.VMStack.getThreadStackTrace(Native Method)
at java.lang.Thread.getStackTrace(Thread.java:579)
at android.support.test.espresso.base.DefaultFailureHandler.getUserFriendlyError(DefaultFailureHandler.java:82)
at android.support.test.espresso.base.DefaultFailureHandler.handle(DefaultFailureHandler.java:53)
at android.support.test.espresso.ViewInteraction.runSynchronouslyOnUiThread(ViewInteraction.java:184)
at android.support.test.espresso.ViewInteraction.doPerform(ViewInteraction.java:115)
at android.support.test.espresso.ViewInteraction.perform(ViewInteraction.java:87)
at android.support.test.espresso.Espresso.openActionBarOverflowOrOptionsMenu(Espresso.java:214)
at com.treemetrics.treedegrees.TestBluetoothPeripheralDialog.openOverflowMenu(TestBluetoothPeripheralDialog.java:28)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at org.junit.runners.model.FrameworkMethod.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at android.support.test.internal.statement.UiThreadStatement.evaluate(UiThreadStatement.java:55)
at android.support.test.rule.ActivityTestRule$ActivityStatement.evaluate(ActivityTestRule.java:257)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access[=10=]0(ParentRunner.java:58)
at org.junit.runners.ParentRunner.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runners.Suite.runChild(Suite.java:128)
at org.junit.runners.Suite.runChild(Suite.java:27)
at org.junit.runners.ParentRunner.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access[=10=]0(ParentRunner.java:58)
at org.junit.runners.ParentRunner.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at org.junit.runner.JUnitCore.run(JUnitCore.java:115)
at android.support.test.internal.runner.TestExecutor.execute(TestExecutor.java:54)
at android.support.test.runner.AndroidJUnitRunner.onStart(AndroidJUnitRunner.java:240)
at android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:1710)
选项菜单在 activity 中初始化为这样
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
getMenuInflater().inflate(R.menu.menu_comp_activity, menu);
this.menu = menu;
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// handle item selection
switch (item.getItemId()) {
case R.id.action_rfid:
toggleRfid(item);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
super.onPrepareOptionsMenu(menu);
MainApplication.debugOut(true, 2, TAG, getString(R.string.called_on_prepare_options_menu));
if (RfidBtService.isRunning){
menu.findItem(R.id.action_rfid).setTitle(R.string.action_rfid_off);
menu.findItem(R.id.action_rfid).setIcon(R.drawable.bt_rfid);
}else{
menu.findItem(R.id.action_rfid).setTitle(R.string.action_rfid_on);
menu.findItem(R.id.action_rfid).setIcon(R.drawable.bt_rfid_on);
}
return true;
}
这里是菜单XML
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="@+id/menuitem_saveforest"
android:onClick="saveForest"
android:orderInCategory="100"
android:showAsAction="never"
android:title="@string/action_save_forest"/>
<item
android:id="@+id/action_sendforest"
android:onClick="sendForest"
android:orderInCategory="100"
android:showAsAction="never"
android:title="@string/action_send_forest"/>
<item
android:id="@+id/action_settings"
android:onClick="launchSettings"
android:orderInCategory="100"
android:showAsAction="never"
android:title="@string/action_settings"/>
<item
android:id="@+id/action_saveforest"
android:icon="@drawable/ic_menu_save"
android:onClick="saveForest"
android:showAsAction="always"
android:title="@string/action_save_forest"/>
<item
android:id="@+id/action_rfid"
android:icon="@drawable/bt_rfid_on"
android:onClick="toggleRfid"
android:showAsAction="ifRoom"
android:title="@string/action_rfid_on"/>
</menu>
这是我的测试class
@RunWith(AndroidJUnit4.class)
@SmallTest
public class TestBluetoothPeripheralDialog {
@Rule
public ActivityTestRule<ForestActivity> mActivityRule
= new ActivityTestRule<>(ForestActivity.class);
@Test
public void openOverflowMenu() {
// Open the overflow menu OR open the options menu,
// depending on if the device has a hardware or software overflow menu button.
openActionBarOverflowOrOptionsMenu(getInstrumentation().getTargetContext());
// Click the item.
onView(withText("Settings"))
.perform(click());
}
}
我意识到我的问题了。我认为 ForestActivity 正在启动，因为它在 ActivityTestRule 中被声明为通用类型（我仍然不知道 ActivityTestRule 的功能是什么，我只是刚刚开始使用 Espresso 并在 Android 上进行一般测试）。所以我的问题是我试图在应用程序启动时打开启动画面中的溢出菜单，而不是 ForestActivity。
对于那些 activity 正确但在 运行 测试期间仍然面临错误的人，这里有一些其他人可以尝试的事情：
确保在您拥有的设备的开发者选项中
Animations off 在所有 3 个动画比例中选择 -
Window/Transition/Animator
有时，openActionBarOverflowOrOptionsMenu 需要一些
加载结果的时间。我倾向于为 2 添加 Thread.sleep()
秒。并且有效！
我刚刚开始试验 Android 的 Espresso 测试框架，我想做的第一件事是单击 activity 选项菜单中的 "Settings" 按钮。但是，当我尝试调用 openActionBarOverflowOrOptionsMenu(getInstrumentation().getTargetContext()) 时，测试崩溃并出现此异常
android.support.test.espresso.NoMatchingViewException: No views in hierarchy found matching: ((is displayed on the screen to the user and with content description: is "More options") or (is displayed on the screen to the user and with class name: a string ending with "OverflowMenuButton"))
View Hierarchy:
+>DecorView{id=-1, visibility=VISIBLE, width=800, height=1232, has-focus=true, has-focusable=true, has-window-focus=true, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0, child-count=1}
|
+->LinearLayout{id=-1, visibility=VISIBLE, width=800, height=1232, has-focus=true, has-focusable=true, has-window-focus=true, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0, child-count=2}
|
+-->ViewStub{id=16909074, visibility=GONE, width=0, height=0, has-focus=false, has-focusable=false, has-window-focus=true, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=true, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0}
|
+-->FrameLayout{id=16908290, res-name=content, visibility=VISIBLE, width=800, height=1207, has-focus=true, has-focusable=true, has-window-focus=true, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=25.0, child-count=1}
|
+--->RelativeLayout{id=-1, visibility=VISIBLE, width=800, height=1207, has-focus=true, has-focusable=true, has-window-focus=true, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0, child-count=9}
|
+---->ImageView{id=2131361813, res-name=main_logo, desc=logo, visibility=VISIBLE, width=768, height=158, has-focus=false, has-focusable=false, has-window-focus=true, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=16.0, y=36.0}
|
+---->Button{id=2131361814, res-name=main_new_button, visibility=INVISIBLE, width=210, height=48, has-focus=false, has-focusable=false, has-window-focus=true, is-clickable=true, is-enabled=true, is-focused=false, is-focusable=true, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=295.0, y=232.0, text=New forest, input-type=0, ime-target=false, has-links=false}
|
+---->Button{id=2131361815, res-name=main_load_button, visibility=VISIBLE, width=210, height=48, has-focus=true, has-focusable=true, has-window-focus=true, is-clickable=true, is-enabled=true, is-focused=true, is-focusable=true, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=295.0, y=310.0, text=Load forest, input-type=0, ime-target=true, has-links=false}
|
+---->Button{id=2131361816, res-name=satform_download_button, visibility=VISIBLE, width=210, height=48, has-focus=false, has-focusable=true, has-window-focus=true, is-clickable=true, is-enabled=true, is-focused=false, is-focusable=true, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=295.0, y=388.0, text=Download, input-type=0, ime-target=false, has-links=false}
|
+---->Button{id=2131361817, res-name=main_resume_button, visibility=GONE, width=0, height=0, has-focus=false, has-focusable=false, has-window-focus=true, is-clickable=true, is-enabled=true, is-focused=false, is-focusable=true, is-layout-requested=true, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0, text=Continue, input-type=0, ime-target=false, has-links=false}
|
+---->ToggleButton{id=2131361818, res-name=marking_mode_toggle, visibility=VISIBLE, width=223, height=48, has-focus=false, has-focusable=true, has-window-focus=true, is-clickable=true, is-enabled=true, is-focused=false, is-focusable=true, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=288.0, y=466.0, text=Auto Marking RFID mode, input-type=0, ime-target=false, has-links=false, is-checked=false}
|
+---->ProgressBar{id=2131361819, res-name=progress_bar, visibility=GONE, width=0, height=0, has-focus=false, has-focusable=false, has-window-focus=true, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=true, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0}
|
+---->TextView{id=2131361820, res-name=progress_text, visibility=GONE, width=0, height=0, has-focus=false, has-focusable=false, has-window-focus=true, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=true, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0, text=Please wait…, input-type=0, ime-target=false, has-links=false}
|
+---->TextView{id=2131361821, res-name=version_text, visibility=VISIBLE, width=210, height=25, has-focus=false, has-focusable=false, has-window-focus=true, is-clickable=true, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=295.0, y=1128.0, text=version:0.7.0, input-type=0, ime-target=false, has-links=false}
|
at dalvik.system.VMStack.getThreadStackTrace(Native Method)
at java.lang.Thread.getStackTrace(Thread.java:579)
at android.support.test.espresso.base.DefaultFailureHandler.getUserFriendlyError(DefaultFailureHandler.java:82)
at android.support.test.espresso.base.DefaultFailureHandler.handle(DefaultFailureHandler.java:53)
at android.support.test.espresso.ViewInteraction.runSynchronouslyOnUiThread(ViewInteraction.java:184)
at android.support.test.espresso.ViewInteraction.doPerform(ViewInteraction.java:115)
at android.support.test.espresso.ViewInteraction.perform(ViewInteraction.java:87)
at android.support.test.espresso.Espresso.openActionBarOverflowOrOptionsMenu(Espresso.java:214)
at com.treemetrics.treedegrees.TestBluetoothPeripheralDialog.openOverflowMenu(TestBluetoothPeripheralDialog.java:28)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at org.junit.runners.model.FrameworkMethod.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at android.support.test.internal.statement.UiThreadStatement.evaluate(UiThreadStatement.java:55)
at android.support.test.rule.ActivityTestRule$ActivityStatement.evaluate(ActivityTestRule.java:257)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access[=10=]0(ParentRunner.java:58)
at org.junit.runners.ParentRunner.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runners.Suite.runChild(Suite.java:128)
at org.junit.runners.Suite.runChild(Suite.java:27)
at org.junit.runners.ParentRunner.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access[=10=]0(ParentRunner.java:58)
at org.junit.runners.ParentRunner.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at org.junit.runner.JUnitCore.run(JUnitCore.java:115)
at android.support.test.internal.runner.TestExecutor.execute(TestExecutor.java:54)
at android.support.test.runner.AndroidJUnitRunner.onStart(AndroidJUnitRunner.java:240)
at android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:1710)
选项菜单在 activity 中初始化为这样
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
getMenuInflater().inflate(R.menu.menu_comp_activity, menu);
this.menu = menu;
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// handle item selection
switch (item.getItemId()) {
case R.id.action_rfid:
toggleRfid(item);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
super.onPrepareOptionsMenu(menu);
MainApplication.debugOut(true, 2, TAG, getString(R.string.called_on_prepare_options_menu));
if (RfidBtService.isRunning){
menu.findItem(R.id.action_rfid).setTitle(R.string.action_rfid_off);
menu.findItem(R.id.action_rfid).setIcon(R.drawable.bt_rfid);
}else{
menu.findItem(R.id.action_rfid).setTitle(R.string.action_rfid_on);
menu.findItem(R.id.action_rfid).setIcon(R.drawable.bt_rfid_on);
}
return true;
}
这里是菜单XML
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="@+id/menuitem_saveforest"
android:onClick="saveForest"
android:orderInCategory="100"
android:showAsAction="never"
android:title="@string/action_save_forest"/>
<item
android:id="@+id/action_sendforest"
android:onClick="sendForest"
android:orderInCategory="100"
android:showAsAction="never"
android:title="@string/action_send_forest"/>
<item
android:id="@+id/action_settings"
android:onClick="launchSettings"
android:orderInCategory="100"
android:showAsAction="never"
android:title="@string/action_settings"/>
<item
android:id="@+id/action_saveforest"
android:icon="@drawable/ic_menu_save"
android:onClick="saveForest"
android:showAsAction="always"
android:title="@string/action_save_forest"/>
<item
android:id="@+id/action_rfid"
android:icon="@drawable/bt_rfid_on"
android:onClick="toggleRfid"
android:showAsAction="ifRoom"
android:title="@string/action_rfid_on"/>
</menu>
这是我的测试class
@RunWith(AndroidJUnit4.class)
@SmallTest
public class TestBluetoothPeripheralDialog {
@Rule
public ActivityTestRule<ForestActivity> mActivityRule
= new ActivityTestRule<>(ForestActivity.class);
@Test
public void openOverflowMenu() {
// Open the overflow menu OR open the options menu,
// depending on if the device has a hardware or software overflow menu button.
openActionBarOverflowOrOptionsMenu(getInstrumentation().getTargetContext());
// Click the item.
onView(withText("Settings"))
.perform(click());
}
}
我意识到我的问题了。我认为 ForestActivity 正在启动，因为它在 ActivityTestRule 中被声明为通用类型（我仍然不知道 ActivityTestRule 的功能是什么，我只是刚刚开始使用 Espresso 并在 Android 上进行一般测试）。所以我的问题是我试图在应用程序启动时打开启动画面中的溢出菜单，而不是 ForestActivity。
对于那些 activity 正确但在 运行 测试期间仍然面临错误的人，这里有一些其他人可以尝试的事情：
确保在您拥有的设备的开发者选项中
Animations off在所有 3 个动画比例中选择 - Window/Transition/Animator有时，openActionBarOverflowOrOptionsMenu 需要一些 加载结果的时间。我倾向于为 2 添加
Thread.sleep()秒。并且有效！