我有一个包含3个片段的viewpager来制作可滑动的小部件。当我第一次加载应用程序时，它们正确显示，所有点击事件都按预期工作。与单击每个OnClick后按下后退按钮相同，将我发送回登录页面，并按预期显示viewpager / fragments。我的问题是，当我按下菜单按钮并返回登录页面时，我的查看寻呼机消失了。
在设置适配器时我确实尝试使用getChildFragmentManager()但是它可以正常运行但是我的onClick事件不再起作用了，因为我没有查看id *******。
我还尝试将适配器放在onResume();中，根本没有运气。
与viewpager一起，我的viewpagerindicator不是为homewidget工作，而是为carousel工作。不确定这是代码还是布局。但是我设置它与旋转木马相同，但在运行时仍然没有在屏幕上看到它。
Landingpagenotlogged
public class LandingPageFragmentLoggedOut extends LandingPageFragment {
private static final String TAG = LandingPageFragmentLoggedOut.class.getSimpleName();
private ViewPager viewPager;
private RelativeLayout myStoreTab;
private Button signIn;
private final static Fragment instance = new LandingPageFragmentLoggedOut();
LoggedOutWidgetAdapter mAdapter;
ViewPager mPager;
public static final int ITEMS = 3;
static public Fragment getInstance() {
return instance;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
super.onCreateView(inflater, container, savedInstanceState);
getActivity().startService(new Intent(getActivity().getApplicationContext(),
WeeklyAdService.class));
setShoppingListFocusChangeListener();
setSignInBtnClickListener();
super.setViewPagerMotionListeners(viewPager);
setMenuTouchListener();
setTabClickListener();
return view;
}
@Override
protected void inflateFragmentView(LayoutInflater inflater, ViewGroup container) {
view = inflater.inflate(R.layout.landingpage_not_logged_in, container,
false);
RelativeLayout thisLayout = (RelativeLayout) view
.findViewById(R.id.landingpage_logged_out_parent_layout);
TileBackground.fixBackgroundRepeat(thisLayout);
imgArch = view.findViewById(R.id.frag_tab);
}
private void setSignInBtnClickListener() {
signIn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
HashMap<String, String> params = new HashMap<>();
Intent intent = new Intent(getActivity(), SignInActivity.class);
startActivity(intent);
getActivity().overridePendingTransition(
R.anim.enter_in_from_bottom, R.anim.anim_static);
params.put("Module", "Home");
FlurryAgent.logEvent(FlurryConstants.GOTO_SIGN_IN, params);
}
});
}
private void setTabClickListener() {
myStoreTab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
tabSelection = 1;
tabSelectionListener.onTabSelectionListener(tabSelection);
toggleStoreTabIndicator(1);
}
});
}
@Override
@SuppressLint("WrongViewCast")
protected void setUIreferences() {
viewPager = (ViewPager) view.findViewById(R.id.home_carousel);
overlay = view.findViewById(R.id.landingpage_screenOverlay);
indicator = (LinePageIndicator) view.findViewById(R.id.image_slider_indicator);
this.signIn = (Button) view.findViewById(R.id.landingpg_sign_in_btn);
shoppingListBtn = (ImageView) view.findViewById(R.id.icnlistoptions);
myStoreTab = (RelativeLayout) view.findViewById(R.id.frag_tab);
menuButton = (Button) view.findViewById(R.id.imgBanner_list);
logoButton = (ImageView) view.findViewById(R.id.headerLogo);
addShoppingListItemWidget = (EditText) view.findViewById(R.id.editAddItemNotLoggedIn);
addShoppingListItemWidget.setOnKeyListener(null);
addedItemConfirmation = view.findViewById(R.id.addedItemConfirmation);
imgScanner = (ImageView) view.findViewById(R.id.imgScannerNotLoggedIn);
toggleScannerVisibility(true);
itemAddedText = (TextView) view.findViewById(R.id.item_added_text);
weeklyAdImg = (ImageView) view.findViewById(R.id.weeklyad_img);
defaultWelcomeMsg = (ImageView) view.findViewById(R.id.landing_page_default_img);
setWeeklyAdThumbNail();
if(imgUrl!=null)
Picasso.with(getActivity()).load(imgUrl).transform(new MyTransformTop()).error(R.drawable.img_ad_default).into(weeklyAdImg);
else
Picasso.with(getActivity()).load(R.drawable.img_ad_default).into(weeklyAdImg);
//setWeeklyAdOnClickListener();
setWeeklyAdClickListener();
couponsGrid = view.findViewById(R.id.coupons_grid);
couponsPlaceholderImg = (ImageView) view.findViewById(R.id.feat_coupons);
if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.HONEYCOMB) {
itemAddedText.setTextSize(TypedValue.COMPLEX_UNIT_SP, 16);
}
imgScanner.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
PermissionHandler.openCamera(getActivity());
}
});
mShoppingListAdd = (RelativeLayout) view.findViewById(R.id.shoppinglis_shortcut);
mShoppingListAdd.setVisibility(View.GONE);
mAdapter = new LoggedOutWidgetAdapter(getFragmentManager());
mPager = (ViewPager) view.findViewById(R.id.vpHomePageWidget);
mPager.setAdapter(mAdapter);
LinePageIndicator mLoggedOutWidgetIndicator = (LinePageIndicator)view.findViewById(R.id.homewidgetLoggedOutIndicator);
mLoggedOutWidgetIndicator.setViewPager(mPager);
}
// MSM - 214
private void setWeeklyAdThumbNail() {
try {
if (LocalDb.getStoreId() != LocalDb.DEFAULT_VAL) {
if (weeklyAdBundle != null && !weeklyAdBundle.isEmpty()) {
//MSM - 155
if (!Utils.isStringNull(weeklyAdBundle.getString("WeeklyAdThumbnail"))) {
Log.e("BANNER ID SET: ", weeklyAdBundle.getString("WeeklyAdThumbnail"));
imgUrl = weeklyAdBundle.getString("WeeklyAdThumbnail");
}
else
imgUrl = weeklyAdBundle.getString("0FirstThumbnail");
}
}
if (urls == null || !urls.contains(imgUrl)) {
Picasso.with(getActivity()).load(imgUrl).transform(new MyTransformTop()).error(R.drawable.img_ad_default).into(weeklyAdImg);
}
else
Picasso.with(getActivity()).load(R.drawable.img_ad_default).into(weeklyAdImg);
} catch (Exception e) {
e.printStackTrace();
}
}
@Override
protected void sendRequest() {
if (CheckNetworkConnection.isConnectionAvailable(activity)) {
jsonParser = new CarouselJSONParser(this);
jsonParser.execute();
} else {
setDefaultOfflineImage();
weeklyAdImg.setImageResource(R.drawable.img_ad_default);
// TODO Set OFFLINE message here
}
}
@Override
public void setCarouselData(ArrayList<CarouselImageData> imageDatas) {
Log.v(TAG, "Set Carousel Data hit");
if (imageDatas != null) {
this.advertisements = imageDatas;
runnable(advertisements.size());
handler.postDelayed(animateViewPager, ANIM_VIEW_PAGER_DELAY);
viewPager
.setAdapter(new ImageSliderAdapter(activity, imageDatas, this, weeklyAdBundle));
indicator.setViewPager(viewPager);
if (isFirstTimeLaunched) {
fadeInWelcomMsg();
Log.v(TAG, "first time launched, welcome message initaited");
} else {
viewPager.setVisibility(View.VISIBLE);
indicator.setVisibility(View.VISIBLE);
Log.v(TAG, "Returning user, viewpager set visible");
}
} else {
setDefaultOfflineImage();
}
}
@Override
public void onResume() {
if (LocalDb.isLoggedIn()) {
Fragment fragment = new LandingPageFragment();
launchNavigationItemFragment(fragment);
}
getActivity().startService(new Intent(getActivity().getApplicationContext(),
WeeklyAdService.class));
if (viewPager == null) {
viewPager = (ViewPager) view.findViewById(R.id.home_carousel);
}
mAdapter = new LoggedOutWidgetAdapter(getChildFragmentManager());
super.onResume();
if (newItemIsAdded) {
onShoppingListResult();
}
// addShoppingListItemWidget.clearFocus();
}
@Override
void runnable(final int size) {
handler = new Handler();
animateViewPager = new Runnable() {
@Override
public void run() {
if (!pageIsSliding) {
if (viewPager.getCurrentItem() == size - 1) {
viewPager.setCurrentItem(0);
} else {
viewPager.setCurrentItem(
viewPager.getCurrentItem() + 1, true);
}
handler.postDelayed(animateViewPager, ANIM_VIEW_PAGER_DELAY);
}
}
};
}
@Override
void toggleStoreTabIndicator(int tab) {
if (storeTabIsClosed) {
storeTabIsClosed = false;
imgArch.setBackgroundResource(R.drawable.img_single_arch_my_store);
} else {
storeTabIsClosed = true;
imgArch.setBackgroundResource(R.drawable.img_arch);
}
}
@Override
protected void setFontsOnTextViews(View view) {
}
@Override
protected void setTabClickListeners() {
}
@Override
public void setViewPagerMotionListeners(ViewPager vPager) {
}
public class LoggedOutWidgetAdapter extends FragmentPagerAdapter {
public LoggedOutWidgetAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return ProductLocatorHomeWidgetFragment.init(position);
case 1:
return ProductScanHomeWidgetFragment.init(position);
case 2:
return MyShoppingListHomeWidgetFragment.init(position);
default:
return null;
}
}
@Override
public int getCount() {
return ITEMS;
}
}
}
绑定到viewpager的三个片段
ProductLocatorHomeWidgetFragment
public class ProductLocatorHomeWidgetFragment extends Fragment {
int fragVal;
int storeId;
String storeName, storeLat, storeLong, retail_store_id;
TextView mProductLocatorClickZone;
StoreList sList;
public static ProductLocatorHomeWidgetFragment init(int val) {
ProductLocatorHomeWidgetFragment productLocatorFragment = new ProductLocatorHomeWidgetFragment();
Bundle args = new Bundle();
args.putInt("prodLocator", val);
productLocatorFragment.setArguments(args);
return productLocatorFragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// fragVal = getArguments() != null ? getArguments().getInt("prodLocator") : 1;
sList = new StoreList();
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View layoutView = inflater.inflate(R.layout.product_locator_search_widget, container, false);
mProductLocatorClickZone = (TextView) layoutView.findViewById(R.id.editSearchItemNotLoggedIn);
mProductLocatorClickZone.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
sList = LandingPageFragment.storeList;
if(sList.getId() != null){
storeId = Integer.parseInt(sList.getId());
storeLat = sList.getLatitude();
storeLong = sList.getLongitude();
storeName = sList.getName();
Intent mIntent = new Intent(getActivity(), ProductSearchActivity.class);
FlurryTrackerHelper.onProductLocatorWidget();
mIntent.putExtra("store_id", String.valueOf(storeId));
mIntent.putExtra("store_lat", storeLat);
mIntent.putExtra("store_lng", storeLong);
mIntent.putExtra("retail_id", retail_store_id);
startActivity(mIntent);
}
else if (sList.getId() == null) {
if (LocalDb.getStoreId() > 0) {
storeId = LocalDb.getStoreId();
storeLat = LocalDb.getStoreLat();
storeLong = LocalDb.getStoreLng();
storeName = LocalDb.getMyStoreName();
Intent mIntent = new Intent(getActivity(), ProductSearchActivity.class);
FlurryTrackerHelper.onProductLocatorWidget();
mIntent.putExtra("store_id", String.valueOf(storeId));
mIntent.putExtra("store_lat", storeLat);
mIntent.putExtra("store_lng", storeLong);
mIntent.putExtra("retail_id", retail_store_id);
startActivity(mIntent);
}
}
else {
StoreLocatorDetailsSearchFragment storeLocatorDetailsSearchFragment = new StoreLocatorDetailsSearchFragment();
Bundle b1 = new Bundle();
b1.putInt("currentFragment", 10);
storeLocatorDetailsSearchFragment.setArguments(b1);
FragmentTransaction transaction = getFragmentManager().beginTransaction();
transaction.setCustomAnimations(R.anim.in_from_right, R.anim.out_to_left, R.anim.in_from_left, R.anim.out_to_right);
transaction.replace(R.id.nav_item_fragment_container, storeLocatorDetailsSearchFragment);
transaction.addToBackStack(null);
transaction.commit();
}
}
});
return layoutView;
}
}
MyShoppingListHomeWidgetFragment
public class MyShoppingListHomeWidgetFragment extends Fragment {
int fragVal;
EditText mShoppingListClickZone;
ImageView mShoppinglistScanClickZone;
public static MyShoppingListHomeWidgetFragment init(int val) {
MyShoppingListHomeWidgetFragment myShoppingListFragment = new MyShoppingListHomeWidgetFragment();
Bundle args = new Bundle();
args.putInt("myShoppingList", val);
myShoppingListFragment.setArguments(args);
return myShoppingListFragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// fragVal = getArguments() != null ? getArguments().getInt("myShoppingList") : 1;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View layoutView = inflater.inflate(R.layout.shopping_list_widget, container, false);
mShoppingListClickZone = (EditText) layoutView.findViewById(R.id.editAddItemNotLoggedIn);
mShoppingListClickZone.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
ShoppingListItemsFragment shoppingListItemsFragment = new ShoppingListItemsFragment();
FragmentTransaction transaction = getFragmentManager().beginTransaction();
transaction.setCustomAnimations(R.anim.in_from_right, R.anim.out_to_left, R.anim.in_from_left, R.anim.out_to_right);
transaction.replace(R.id.nav_item_fragment_container, shoppingListItemsFragment);
transaction.addToBackStack(null);
transaction.commit();
}
});
mShoppinglistScanClickZone = (ImageView) layoutView.findViewById(R.id.imgScannerNotLoggedIn);
mShoppinglistScanClickZone.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
PermissionHandler.openCamera(getActivity());
}
});
return layoutView;
}
}
ProductScanHomeWidgetFragment
public class ProductScanHomeWidgetFragment extends Fragment {
int fragVal;
LinearLayout mCouponSearchClickZone, mRefillPrescriptionClickZone;
View mDivider;
public static ProductScanHomeWidgetFragment init(int val) {
ProductScanHomeWidgetFragment productScanFragment = new ProductScanHomeWidgetFragment();
Bundle args = new Bundle();
args.putInt("prodScan", val);
productScanFragment.setArguments(args);
return productScanFragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
fragVal = getArguments() != null ? getArguments().getInt("prodScan") : 1;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View layoutView = inflater.inflate(R.layout.product_scan_widget, container, false);
mRefillPrescriptionClickZone = (LinearLayout) layoutView.findViewById(R.id.refillPrescriptionClickZone);
mCouponSearchClickZone = (LinearLayout) layoutView.findViewById(R.id.couponSearchClickZone);
mCouponSearchClickZone.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
ECouponsViewFragment eCouponsViewFragment = new ECouponsViewFragment();
FragmentTransaction transaction = getFragmentManager().beginTransaction();
transaction.setCustomAnimations(R.anim.in_from_right, R.anim.out_to_left, R.anim.in_from_left, R.anim.out_to_right);
transaction.replace(R.id.nav_item_fragment_container, eCouponsViewFragment);
transaction.addToBackStack(null);
transaction.commit();
}
});
if (LocalDb.getBannerSupportRefillPrescriptions().equalsIgnoreCase(
UtilConstants.KEY_WORD_FALSE)) {
mDivider = layoutView.findViewById(R.id.divider);
mDivider.setVisibility(View.GONE);
mRefillPrescriptionClickZone.setVisibility(View.GONE);
} else {
mRefillPrescriptionClickZone.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
AddPharmacyFragment addPharmacyFragment = new AddPharmacyFragment();
FragmentTransaction transaction = getFragmentManager().beginTransaction();
transaction.setCustomAnimations(R.anim.in_from_right, R.anim.out_to_left, R.anim.in_from_left, R.anim.out_to_right);
transaction.replace(R.id.nav_item_fragment_container, addPharmacyFragment);
transaction.addToBackStack(null);
transaction.commit();
}
});
}
return layoutView;
}
}
答案 0 :(得分：0)
我能够使用FragmentStatePagerAdapter而不是FragmentPagerAdapter来解决这个问题。
所以我删除了LadingPageLoggedOut中的旧FragmentPagerAdapter并将其替换为
<Grid Grid.Row="1" x:Name="btmtp" VerticalAlignment="Bottom">