我正在尝试将viewpager添加到popupwindow中，但是我无法做到这一点，我总是收到一条错误消息，指出java.lang.IllegalArgumentException：找不到片段FirstFragment的ID 0x7f0902d9（：id / viewpager）的视图{ 875be04＃0 id = 0x7f0902d9 android：switcher：2131296985：0}
我尝试了所有可能性，但没有任何结果。
这是我的代码，
public void showEditingPopupWindow() {
LayoutInflater inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
if (inflater != null) {
View view = inflater.inflate(R.layout.editor_layout, new LinearLayout(this));
popupWindow = new PopupWindow();
popupWindow.setWindowLayoutMode(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
popupWindow.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT);
popupWindow.setOutsideTouchable(false);
popupWindow.setContentView(view);
popupWindow.setFocusable(true);
popupWindow.getContentView().requestFocus();
LinearLayout llSelectedColor, llBackgroundSelectedTextColor;
ViewPager viewPager = view.findViewById(R.id.viewpager);
setupViewPager(viewPager);
TabLayout tabLayout = view.findViewById(R.id.tabs);
tabLayout.setupWithViewPager(viewPager);
tabLayout.setTabMode(TabLayout.MODE_FIXED);
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
View headerView = inflater.inflate(R.layout.custom_tab, new LinearLayout(this));
LinearLayout llTextStyle = headerView.findViewById(R.id.llTextStyle);
LinearLayout llBackground = headerView.findViewById(R.id.llBackground);
LinearLayout llTextColor = headerView.findViewById(R.id.llTextColor);
llSelectedColor = headerView.findViewById(R.id.llSelectedColor);
llBackgroundSelectedTextColor = headerView.findViewById(R.id.llBackgroundSelectedTextColor);
tabLayout.getTabAt(0).setCustomView(llTextStyle);
tabLayout.getTabAt(1).setCustomView(llBackground);
tabLayout.getTabAt(2).setCustomView(llTextColor);
llSelectedColor.setBackgroundColor(Color.parseColor(selectedBackgroundColor));
llBackgroundSelectedTextColor.setBackgroundColor(Color.parseColor(selectedTextColor));
DocumentColorChangeListener documentColorChangeListener = (color, isText) -> {
if (isText) {
if (!selectedTextColor.equals(color)) {
selectedTextColor = color;
llBackgroundSelectedTextColor.post(() -> llBackgroundSelectedTextColor.setBackgroundColor(Color.parseColor(color)));
}
} else if (!selectedBackgroundColor.equals(color)) {
selectedBackgroundColor = color;
llSelectedColor.setBackgroundColor(Color.parseColor(color));
}
};
setOnColorUpdateListener(documentColorChangeListener);
llTextEditor.setSelected(true);
popupWindow.setOnDismissListener(() -> {
llTextEditor.setSelected(false);
});
view.measure(Utils.makeViewMeasureSpec(popupWindow.getWidth()), Utils.makeViewMeasureSpec(popupWindow.getHeight()));
llTextEditor.measure(0, 0);
popupWindow.showAsDropDown(llTextEditor, -(popupWindow.getContentView().getMeasuredWidth() / 2) + llLanguageSelect.getMeasuredWidth() / 2, 0);
}
}
使用片段设置视图传呼器
private void setupViewPager(ViewPager viewPager) {
ViewPagerAdapter viewPagerAdapter = new ViewPagerAdapter(getSupportFragmentManager());
Bundle bundle = new Bundle();
bundle.putString(AppConstants.OtherConstants.SELECTED_TEXT_STYLE, selectedTextStyle);
TextStyleFragment textStyleFragment = new TextStyleFragment();
textStyleFragment.setArguments(bundle);
bundle = new Bundle();
BackgroundFragment backgroundFragment = new BackgroundFragment();
bundle.putString(AppConstants.OtherConstants.SELECTED_BACKGROUND_COLOR, selectedBackgroundColor);
backgroundFragment.setArguments(bundle);
bundle = new Bundle();
TextColorPickerFragment textColorPickerFragment = new TextColorPickerFragment();
bundle.putString(AppConstants.OtherConstants.SELECTED_TEXT_COLOR, selectedTextColor);
textColorPickerFragment.setArguments(bundle);
viewPagerAdapter.addFragment(textStyleFragment, AppConstants.OtherConstants.TEXT_STYLE);
viewPagerAdapter.addFragment(backgroundFragment, AppConstants.OtherConstants.BACKGROUND);
viewPagerAdapter.addFragment(textColorPickerFragment, AppConstants.OtherConstants.COLOR_PICKER);
viewPager.setAdapter(viewPagerAdapter);
viewPager.setOffscreenPageLimit(3);
}
这是我的viewpager适配器
public class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
ViewPagerAdapter(android.support.v4.app.FragmentManager manager) {
super(manager);
}
@Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
@Override
public int getCount() {
return mFragmentList.size();
}
void addFragment(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
@Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
这是错误日志
java.lang.IllegalArgumentException: No view found for id 0x7f0902d9 (com.appneme.myappp:id/viewpager) for fragment FirstFragment{875be04 #0 id=0x7f0902d9 android:switcher:2131296985:0}
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1454)
at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1784)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1852)
at android.support.v4.app.BackStackRecord.executeOps(BackStackRecord.java:802)
at android.support.v4.app.FragmentManagerImpl.executeOps(FragmentManager.java:2625)
at android.support.v4.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2411)
at android.support.v4.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManager.java:2366)
at android.support.v4.app.FragmentManagerImpl.execSingleAction(FragmentManager.java:2243)
at android.support.v4.app.BackStackRecord.commitNowAllowingStateLoss(BackStackRecord.java:654)
at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:146)
at android.support.v4.view.ViewPager.populate(ViewPager.java:1244)
at android.support.v4.view.ViewPager.populate(ViewPager.java:1092)
at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1622)
at android.view.View.measure(View.java:18830)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5952)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:748)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:630)
at android.view.View.measure(View.java:18830)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5952)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465)
at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:1112)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:632)
at android.view.View.measure(View.java:18830)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5952)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.view.View.measure(View.java:18830)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2141)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1228)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1489)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1144)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6102)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:860)
at android.view.Choreographer.doCallbacks(Choreographer.java:672)
at android.view.Choreographer.doFrame(Choreographer.java:608)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:846)
at android.os.Handler.handleCallback(Handler.java:742)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:157)
at android.app.ActivityThread.main(ActivityThread.java:5601)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:774)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:652)
请帮助解决此问题
答案 0 :(得分：0)
我使用DialogFragment解决了我的问题，在其中我替换了具有Viewpager和选项卡的Fragment。参见下面的代码
public class DocumentEditingDialog extends BaseDialogFragment {
public DocumentEditingDialog() {
}
@Override
public void onResume() {
super.onResume();
}
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
setRetainInstance(false);
ButterKnife.bind(Objects.requireNonNull(getActivity()));
getDialog().requestWindowFeature(Window.FEATURE_NO_TITLE);
Window window = getDialog().getWindow();
if (window != null) {
window.addFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND); // This flag is required to set otherwise the setDimAmount method will not show any effect
window.setDimAmount(0); //0 for no dim to 1 for full dim
WindowManager.LayoutParams wmlp = getDialog().getWindow().getAttributes();
wmlp.gravity = Gravity.TOP;
Bundle arguments = getArguments();
if (arguments != null) {
if (Utils.isTabletDevice(getActivity())) {
if (getActivity().getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
wmlp.x = arguments.getInt("x") - dpToPx(getResources().getDimension(R.dimen._105sdp));
wmlp.y = arguments.getInt("y") - dpToPx(getResources().getDimension(R.dimen._115sdp));
} else {
wmlp.x = arguments.getInt("x") - dpToPx(getResources().getDimension(R.dimen._175sdp));
wmlp.y = arguments.getInt("y") - dpToPx(getResources().getDimension(R.dimen._50sdp));
}
} else {
wmlp.x = arguments.getInt("x") - dpToPx(getResources().getDimension(R.dimen._75sdp));
wmlp.y = arguments.getInt("y") - dpToPx(getResources().getDimension(R.dimen._72sdp));
}
}
window.setAttributes(wmlp);
}
View view = inflater.inflate(R.layout.popup_windows_doc_editing, container, false);
android.support.v4.app.FragmentTransaction transaction = getChildFragmentManager().beginTransaction();
Bundle bundle = new Bundle();
TextEditorFragment myf = new TextEditorFragment();
myf.setArguments(bundle);
transaction.replace(R.id.frm_language_list, myf);
transaction.commit();
return view;
}
public int dpToPx(float valueInDp) {
DisplayMetrics metrics = Objects.requireNonNull(getActivity()).getResources().getDisplayMetrics();
return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, valueInDp, metrics);
}
}