我正在使用片段和flipview，但我遇到了一些问题。
当我的应用打开第一个屏幕时，使用FlipView显示我的Feed。当我选择我片段的另一个标签时，Feed的片段没有隐藏或分离。我调试了很多次，代码到达分离行但没有工作。
这是我的代码
MainActivity类
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
FontManager.getInstance().initialize(this, R.xml.fonts);
setContentView(R.layout.activity_main);
mFBSession = new FBSessionsManager();
mActionBar = getActionBar();
fm = getFragmentManager();
mTabHost = (TabHost) findViewById(android.R.id.tabhost);
mTabHost.setup();
TabHost.OnTabChangeListener mTabChangeListener = new TabHost.OnTabChangeListener() {
@Override
public void onTabChanged(String tabId) {
ft = fm.beginTransaction();
ft.setTransition(FragmentTransaction.TRANSIT_ENTER_MASK);
FeedPrincipalList mFeedFragment = (FeedPrincipalList) fm.findFragmentByTag(TAB_TAG_FEED);
EverythingFragmentList mEverythingFragment = (EverythingFragmentList) fm.findFragmentByTag(TAB_TAG_ALL_EVERYTHING);
PaymentFragment mPaymentFragment = (PaymentFragment) fm.findFragmentByTag(TAB_TAG_PAYMENT);
ConsultFragmentList mConsultFragmentList = (ConsultFragmentList) fm.findFragmentByTag(TAB_TAG_M_CONSULT);
ProfileFragmentList mProfileFragmentList = (ProfileFragmentList) fm.findFragmentByTag(TAB_TAG_M_PROFILE);
if (mFeedFragment != null){
ft.detach(mFeedFragment);
// ft.commit();
}
if (mEverythingFragment != null)
ft.detach(mEverythingFragment);
if (mPaymentFragment != null)
ft.detach(mPaymentFragment);
if (mConsultFragmentList != null)
ft.detach(mConsultFragmentList);
if (mProfileFragmentList != null){
ft.detach(mProfileFragmentList);
// ft.commit();
}
if (tabId.equalsIgnoreCase(TAB_TAG_FEED)) {
manageContextualActions(true, false);
if (mFeedFragment == null) {
mFeedFragment = new FeedPrincipalList();
ft.add(R.id.realTabContent, mFeedFragment, TAB_TAG_FEED);
} else {
mFeedFragment = new FeedPrincipalList();
ft.attach(mFeedFragment);
}
}
if (tabId.equalsIgnoreCase(TAB_TAG_ALL_EVERYTHING)) {
manageContextualActions(false, true);
if (mEverythingFragment == null) {
mEverythingFragment = new EverythingFragmentList();
ft.replace(R.id.realTabContent, mEverythingFragment, TAB_TAG_ALL_EVERYTHING);
} else {
ft.attach(mEverythingFragment);
}
}
if (tabId.equalsIgnoreCase(TAB_TAG_PAYMENT)) {
manageContextualActions(false, true);
if (mPaymentFragment == null) {
mPaymentFragment = new PaymentFragment();
ft.replace(R.id.realTabContent, mPaymentFragment, TAB_TAG_PAYMENT);
} else {
ft.attach(mPaymentFragment);
}
}
if (tabId.equalsIgnoreCase(TAB_TAG_M_CONSULT)) {
manageContextualActions(false, true);
if (mConsultFragmentList == null) {
mConsultFragmentList = new ConsultFragmentList();
ft.replace(R.id.realTabContent, mConsultFragmentList, TAB_TAG_M_CONSULT);
} else {
ft.attach(mConsultFragmentList);
}
}
if (tabId.equalsIgnoreCase(TAB_TAG_M_PROFILE)) {
manageContextualActions(false, false);
if (mProfileFragmentList == null) {
mProfileFragmentList = new ProfileFragmentList();
ft.replace(R.id.realTabContent, mProfileFragmentList, TAB_TAG_M_PROFILE);
} else {
mProfileFragmentList = new ProfileFragmentList();
ft.attach(mProfileFragmentList);
}
}
ft.commit();
}
};
mTabHost.setOnTabChangedListener(mTabChangeListener);
createAndConfigureTabs();
}
@Override
protected void onStart() {
super.onStart();
}
@Override
protected void onStop() {
super.onStop();
}
public void setupActionBar(int stringTitleID) {
mActionBar.setDisplayShowCustomEnabled(true);
mActionBar.setDisplayShowTitleEnabled(false);
mActionBar.setDisplayUseLogoEnabled(false);
final LayoutInflater inflater = LayoutInflater.from(this);
final View customTitle = inflater.inflate(R.layout.custom_title, null);
((TextView) customTitle.findViewById(R.id.customTitleActionbar)).setText(getResources().getString(stringTitleID));
mActionBar.setCustomView(customTitle);
}
private void createAndConfigureTabs() {
mTabFeed = mTabHost.newTabSpec(TAB_TAG_FEED);
mTabFeed.setIndicator(null, getResources().getDrawable(R.drawable.custom_btn_feed));
mTabFeed.setContent(new TabContentCreator(this));
mTabHost.addTab(mTabFeed);
mTabAllEverything = mTabHost.newTabSpec(TAB_TAG_ALL_EVERYTHING);
mTabAllEverything.setIndicator(null, getResources().getDrawable(R.drawable.custom_btn_all_everything));
mTabAllEverything.setContent(new TabContentCreator(this));
mTabHost.addTab(mTabAllEverything);
mTabCameraAndPayment = mTabHost.newTabSpec(TAB_TAG_PAYMENT);
mTabCameraAndPayment.setIndicator(null, getResources().getDrawable(R.drawable.btn_camera));
mTabCameraAndPayment.setContent(new TabContentCreator(this));
mTabHost.addTab(mTabCameraAndPayment);
mTabConsult = mTabHost.newTabSpec(TAB_TAG_M_CONSULT);
mTabConsult.setIndicator(null, getResources().getDrawable(R.drawable.custom_btn_consult));
mTabConsult.setContent(new TabContentCreator(this));
mTabHost.addTab(mTabConsult);
mTabMyProfile = mTabHost.newTabSpec(TAB_TAG_M_PROFILE);
mTabMyProfile.setIndicator(null, getResources().getDrawable(R.drawable.custom_btn_profile));
mTabMyProfile.setContent(new TabContentCreator(this));
mTabHost.addTab(mTabMyProfile);
mTabWidget = mTabHost.getTabWidget();
for (int i = 0; i minor 5; i++) {
View v = mTabWidget.getChildAt(i);
v.setBackgroundResource(android.R.drawable.screen_background_light_transparent);
if (i == 4)
v.setPadding(0, 0, 0, 12);
}
}
private class TabContentCreator implements TabHost.TabContentFactory {
private Context mContext;
public TabContentCreator(Context context) {
mContext = context;
}
@Override
public View createTabContent(String tag) {
View v = new View(mContext);
return v;
}
}
FeedFragment类
public class FeedPrincipalList extends android.app.Fragment implements FlipView.OnFlipListener, FlipView.OnOverFlipListener, FlipView.OnClickListener {
private static int timelinePage = 1, mPageCount = 0;
private FlipView mFlipView;
private FeedPrincipalAdapter mAdapter;
private FBSessionsManager fbSessionsManager;
private List mList;
private Context context;
private int posicaoTela;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
context = getActivity().getApplicationContext();
View view = inflater.inflate(R.layout.feed_flipview, container);
((MainFragmentActivity) getActivity()).setupActionBar(R.string.title_fragment_feed);
mFlipView = (FlipView) view.findViewById(R.id.fv_feedFlipView_FlipView);
mFlipView.setOnFlipListener(this);
mFlipView.setOverFlipMode(OverFlipMode.RUBBER_BAND);
mFlipView.setEmptyView(view.findViewById(R.id.empty_view));
mFlipView.setOnOverFlipListener(this);
mFlipView.setOnClickListener(this);
fbSessionsManager = new FBSessionsManager(getActivity());
if (mList == null)
new LoadFeedPrincipalData().execute();
return super.onCreateView(inflater,container,savedInstanceState);
}
@Override
public void onFlippedToPage(FlipView v, int position, long id) {
Log.i("pageflip", "Page: " + position);
posicaoTela = position;
if(position > mFlipView.getPageCount()-3 && mFlipView.getPageCount() {
private UtilWS ws;
private JSONObject toSend;
private JsonArray rsArray;
private JsonParser parser;
public LoadFeedPrincipalData() {
ws = new UtilWS();
toSend = new JSONObject();
parser = new JsonParser();
}
@Override
protected Void doInBackground(Void... params) {
try {
toSend.put("token", fbSessionsManager.getStoredPrivateSession()[0]);
toSend.put("userId", fbSessionsManager.getStoredPrivateSession()[1]);
toSend.put("page", timelinePage);
String[] jsonResult = ws.post(UtilWS.URL_TIMELINE, toSend.toString());
if (jsonResult[0].equals("200")) {
JsonObject temp = parser.parse(jsonResult[1]).getAsJsonObject();
Log.i("JSON",": "+temp.toString());
if (temp.get("success").getAsBoolean()) {
rsArray = temp.get("looks").getAsJsonArray();
if (mPageCount == 0)
mPageCount = temp.get("pageCount").getAsInt();
for (JsonElement el : rsArray) {
if (mList == null)
mList = new ArrayList();
temp = (JsonObject) el;
FeedPrincipalTO tempTudo = new FeedPrincipalTO(temp.get("lookId").getAsString(), temp.get("photoUrl1").getAsString(), temp.get("photoUrl2").getAsString(), temp.get("jaVotou").getAsBoolean(),temp.get("photoVoted").getAsInt() ,temp.get("photo1Total").getAsString(), temp.get("photo2Total").getAsString());
mList.add(tempTudo);
}
}
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(Void aVoid) {
if (mList != null) {
Log.i("mList","mLista");
mAdapter = new FeedPrincipalAdapter(context,mList);
mAdapter.setCallback(new FeedPrincipalAdapter.Callback() {
@Override
public void onPageRequested(int page) {
mFlipView.smoothFlipTo(page);
}
@Override
public void voteUp(int position) {
Log.i("TESTE","position = " + posicaoTela);
mAdapter.getView(position, null, null).postInvalidate();
// mAdapter.notifyDataSetChanged();
}
});
if (timelinePage == 1) {
mFlipView.setAdapter(mAdapter);
// initListenerList();
} else {
((FeedPrincipalAdapter) mFlipView.getAdapter()).updateList(mList);
((FeedPrincipalAdapter) mFlipView.getAdapter()).notifyDataSetChanged();
}
} else {
mFlipView.setAdapter(new FeedPrincipalAdapter(context,null));
}
}
// private void initListenerList() {
// getListView().setOnScrollListener(new AbsListView.OnScrollListener() {
// @Override
// public void onScrollStateChanged(AbsListView view, int scrollState) {
//
// }
//
// @Override
// public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
// if (firstVisibleItem + visibleItemCount == totalItemCount && totalItemCount != 0) {
// if (timelinePage minor mPageCount) {
// timelinePage++;
// new LoadFeedPrincipalData().execute();
// }
// }
// }
// });
// }
}
}
请帮帮我!!!
我正在使用FlipView https://github.com/emilsjolander/android-FlipView
感谢!!!
答案 0 :(得分：0)
最后我解决了这个问题。
首先，我稍微改变了我的主类。
我在MainActivity类中更改了这两个ifs（此片段使用FlipView）。
if (tabId.equalsIgnoreCase(TAB_TAG_FEED)) {
manageContextualActions(true, false);
if (mFeedFragment == null) {
mFeedFragment = new FeedPrincipalList();
ft.add(R.id.realTabContent, mFeedFragment, TAB_TAG_FEED);
} else {
// mFeedFragment = new FeedPrincipalList();
ft.attach(mFeedFragment);
}
}
if (tabId.equalsIgnoreCase(TAB_TAG_M_PROFILE)) {
manageContextualActions(false, false);
if (mProfileFragmentList == null) {
mProfileFragmentList = new ProfileFragmentList();
ft.add(R.id.realTabContent, mProfileFragmentList, TAB_TAG_M_PROFILE);
} else {
// mProfileFragmentList = new ProfileFragmentList();
ft.attach(mProfileFragmentList);
}
}
其次我改变了我的FeedFragment类的创建方法onCreateView。
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
context = getActivity().getApplicationContext();
((MainFragmentActivity) getActivity()).setupActionBar(R.string.title_fragment_feed);
fbSessionsManager = new FBSessionsManager(getActivity());
if (mList == null){
view = inflater.inflate(R.layout.feed_flipview, container,true);
mFlipView = (FlipView) view.findViewById(R.id.fv_feedFlipView_FlipView);
mFlipView.setOnFlipListener(this);
mFlipView.setOverFlipMode(OverFlipMode.RUBBER_BAND);
mFlipView.setEmptyView(view.findViewById(R.id.empty_view));
mFlipView.setOnOverFlipListener(this);
new LoadFeedPrincipalData().execute();
}
return super.onCreateView(inflater,container,savedInstanceState);
}
你可以看到差异。我只是第一次给视图充气。在我的mList（它是MyGetSetClass列表）之后，它不再是null。
要完成我在FeedFragment类上覆盖这两个方法。
@Override
public void onDetach() {
super.onDetach();
// Log.i("onDetach", "FeedPrincipalList");
mList = null;
timelinePage = 1;
mPageCount = 0;
}
@Override
public void onStart() {
super.onStart();
// Log.i("onStart", "FeedPrincipalList");
this.mFlipView.setVisibility(View.VISIBLE);
}
@Override
public void onStop() {
super.onStop();
// Log.i("onStop","FeedPrincipalList");
this.mFlipView.setVisibility(View.INVISIBLE);
}
在分离方法中，我清理了当我再次启动应用程序时将使用的所有静态变量。
onStart和onStop我用来改变我的FlipView的可见性。
那就是它。
我希望这能帮到大家!!!