如何在导航按钮上单击工具栏？

Question

not working for me

activity.findViewById(R.string.abc_action_bar_up_description).performClick();

I set in activity

    setSupportActionBar(toolbar);
    toolbar.setNavigationOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            ...
        }
    });

Answer 1

To make a click on the navigation button which is located in the toolbar you need to do the following:

Add text to the navigation button

toolbar.setNavigationContentDescription("up");

After finding it in the following way

final ArrayList<View> outViews = Lists.newArrayList();
        activity.findViewById(R.id.toolbar).findViewsWithText(outViews, "up", View.FIND_VIEWS_WITH_CONTENT_DESCRIPTION);
        outViews.get(0).performClick();

Answer 2

您应该将您的东西称为R.id.yourStuff &&检查是否为android:clickable="true" （如果不是按钮）。