如何在多个 fragment 之间返回按下按钮:
public class MyFragment extends Fragment implements OnBackClickListener{
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
}
}
最佳答案
在 Activity 中覆盖 onBackPressed 并在提交之前将所有 Fragments 添加到 BackStack:
@Override
public void onBackPressed() {
final int count = getSupportFragmentManager().getBackStackEntryCount();
if (count == 0) {
super.onBackPressed();
} else {
getSupportFragmentManager().popBackStack();
}
}
关于java - 如何在几个 fragment 之间后退,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/57842783/