viewPager.registerOnPageChangeCallback(new ViewPager2.OnPageChangeCallback() {
@Override
public void onPageSelected(int position) {
// 页面选中时执行操作
BottomNavigationView navView = findViewById(R.id.nav_view);
Log.i(TAG, "onPageSelected: " + position);
navView.getMenu().getItem(position).setChecked(true);
MainActivity activity = MainActivity.this;
activity.setTitle(navView.getMenu().getItem(position).getTitle());
// 手动请求焦点
// 通过FragmentStateAdapter获取当前Fragment,处理第一次没有焦点需要连点两次问题
Fragment currentFragment = getSupportFragmentManager().findFragmentByTag("f" + position);
if (currentFragment != null) {
View currentFragmentView = currentFragment.getView();
if (currentFragmentView != null) {
// 手动请求焦点
view.requestFocus();
}
}
}
});
Android ViewPager切换页面点击触发不了focus问题
发布时间 2023-09-26 17:11:18作者: zhaogaojian