-1
URL에서 RSS 피드를 읽고 프래그먼트 작업에 표시하는 프로젝트를 진행하고 있습니다. 필자는 또한 ViewPager를 사용하여 탭을 탐색하고 FLipViewController를 사용하여 프로젝트의 UI를 뒤집습니다.비동기 작업은 처음에는 조각에서 UI를 부 풀리지 않지만 활동이 재개 또는 다시 시작하면 UI가 비정상적으로 증가합니다.
문제는 내 HomeFragment (첫 번째 탭 화면)에서 AsyncTask를 사용하여 RSS 피드를 읽고 내 HomeFragment UI에 표시했기 때문입니다. RSS 피드는 모두 읽었지만 처음에는 My HomeFragment UI에 표시되지 않지만 첫 번째 탭에서부터 ViewPager를 사용하여 마지막으로 탐색 할 때 My HomeFragement가 다시 시작되면 UI에 피드가 표시됩니다.
나는 logcat에 로그를 넣고 확인했다. onCreateView() 메서드가 실행되고 AsyncTask를 onCreate() 메서드로 작성했지만 AsyncTask를 onCreateView() 및 onActivityCreated() 메서드에서도 사용하려고했지만 My AsyncTask가 실행되었음을 알게되었습니다. 항상 같은 일이 일어난다.
활동이 처음 시작될 때 AsyncTask가 실행되지 않고 활동이 다시 시작될 때 왜 UI가 비정상적으로 증가했는지 아닌지 아무도 나를 도와 줄 수 있습니까? 또한 가능한 경우 다른 방법으로 필요한 것을 얻을 수 있습니다.
내 코드를 다음과 같이 묶으므로 어떤 도움도 받으실 수 있습니다. 다음과 같이
내 기본 활동은 다음과 같습니다 -
public class Base extends FragmentActivity implements ActionBar.TabListener {
private ViewPager viewPager;
private TabPagerAdapter mAdapter;
private ActionBar actionBar;
// Tab titles
private String[] tabs = { "Post", "Category", "Gallery" };
String TabFragmentHome;
public void setTabFragmentHome(String t){
TabFragmentHome = t;
}
public String getTabFragmentHome(){
return TabFragmentHome;
}
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.base_activity);
// Initializing...
viewPager=(ViewPager)findViewById(R.id.pager);
actionBar=getActionBar();
mAdapter=new TabPagerAdapter(getFragmentManager());
viewPager.setAdapter(mAdapter);
actionBar.setDisplayHomeAsUpEnabled(false);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
for(String tab_name:tabs){
actionBar.addTab(actionBar.newTab().setText(tab_name).setTabListener(this));
}
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageSelected(int arg0) {
// TODO Auto-generated method stub
// on changing the page
// make respected tab selected
actionBar.setSelectedNavigationItem(arg0);
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
// TODO Auto-generated method stub
}
@Override
public void onPageScrollStateChanged(int arg0) {
// TODO Auto-generated method stub
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.base, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
// on tab selected
// show respected fragment view
viewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
}
@Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
}
}
내 홈 조각 클래스는 다음과 같다 : - 다음과 같이
public class HomeFragment extends Fragment {
private static String sAllPostFeedURL = "SOME_FEED_URL";
List<AllStoriesModel> lASM;
List<AllStoriesModel>list = new ArrayList<AllStoriesModel>();
FlipViewController flipview;
NoteViewBaseAdapter NVBAdapter;
RelativeLayout rLay;
@Override
public View onCreateView(LayoutInflater inflater,
@Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
// TODO Auto-generated method stub
Log.d("HomeFragment","onCreateView");
View rootView=inflater.inflate(R.layout.home_fragment, container,false);
rLay=(RelativeLayout)rootView.findViewById(R.id.MainLayout);
return flipview;
}
@Override
public void onResume() {
// TODO Auto-generated method stub
super.onResume();
Log.d("HomeFragment","OnResume");
}
@Override
public void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
Log.d("HomeFragment","OnCreate");
new LoadStoriesOnline().execute();
}
@Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onActivityCreated(savedInstanceState);
Log.d("HomeFragment","OnActivityCreated");
}
public class NoteViewBaseAdapter extends BaseAdapter{
private final Context mContext = null;
LayoutInflater inflate;
List<AllStoriesModel> lstory;
public NoteViewBaseAdapter(Context homeFragment,
List<AllStoriesModel> objASM) {
// TODO Auto-generated constructor stub
Log.d("HomeFragment","NoteViewBaseAdapter Started");
inflate=LayoutInflater.from(homeFragment);
lstory=objASM;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return lstory.size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
Log.d("HomeFragment","NoteViewAdapter.getView() Method");
View layout=convertView;
if(layout==null){
layout=inflate.inflate(R.layout.home_fragment, null);
}
//Get's value from our ArrayList by the position
final AllStoriesModel objASM = lstory.get(position);
TextView tHeadline = (TextView)layout.findViewById(R.id.tHeadline);
ImageView iStoryImage = (ImageView)layout.findViewById(R.id.iStoryImage);
TextView tAuthor = (TextView)layout.findViewById(R.id.tAuthor);
TextView tDate = (TextView)layout.findViewById(R.id.tDate);
TextView tStoryDesc = (TextView)layout.findViewById(R.id.tStoryDetails);
RelativeLayout lMore=(RelativeLayout)layout.findViewById(R.id.MainLayout);
try{
tHeadline.setText(objASM.getStitle());
String sStoryDesc="<html><head>" +
"<style type=\"text/css\">" +
"</style></head>" +
"<body>" +
"<section id=\"content\">" +
objASM.getSdesc() +
"</section>" + "<br><br>"+
"</body></html>";
tStoryDesc.setText(Html.fromHtml(sStoryDesc));
tAuthor.setText(objASM.getSauthor());
tDate.setText(objASM.getSdate());
Picasso.with(getActivity())
.load(objASM.getSthumburl().replace("-150x150.", "."))
.placeholder(R.drawable.image) // optional
.error(R.drawable.ic_launcher) // optional
.into(iStoryImage);
}catch(Exception e){
Log.d("Home Fragment : ", "Error in Feed");
e.printStackTrace();
}
lMore.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
someOperations();
}
});
return layout;
}
}
public class LoadStoriesOnline extends AsyncTask<String, String, String>
{
@Override
protected String doInBackground(String... params) {
// TODO Auto-generated method stub
Log.d("HomeFragment","doInBackground Method");
if(StoryService.checkInternetConnection(getActivity()))
{
Log.d("Home Fragment", "Loading stories started");
HttpGet request = new HttpGet(sAllPostFeedURL);
request.addHeader("accepts", "application/rss+xml");
HttpClient client = new DefaultHttpClient();
HttpResponse response = null;
try {
response = client.execute(request);
} catch (IOException e) {
e.printStackTrace();
}
RootElement root = new RootElement("rss");
lASM = new ArrayList<AllStoriesModel>();
AllStoriesParser objASP = new AllStoriesParser();
lASM = AllStoriesParser.appendArrayListener(root.getChild("channel"), 0);
try {
Xml.parse(response.getEntity().getContent(), Xml.Encoding.UTF_8, root.getContentHandler());
} catch (Exception e) {
e.printStackTrace();
}
}
return null;
}
@Override
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
Log.d("HomeFragment","OnPostExecute");
if(lASM!=null){
NVBAdapter=new NoteViewBaseAdapter(getActivity(), lASM);
NVBAdapter.notifyDataSetChanged();
flipview = new FlipViewController(getActivity(), FlipViewController.VERTICAL);
flipview.setAdapter(NVBAdapter);
}
else{
Log.d("HomeFragment : ","lASM is null");
}
}
}
}
내 TabPager 어댑터는 다음과 같습니다 -
public class TabPagerAdapter extends FragmentPagerAdapter{
public TabPagerAdapter(FragmentManager fm) {
super(fm);
// TODO Auto-generated constructor stub
}
public Fragment getItem(int index) {
// TODO Auto-generated method stub
switch (index) {
case 0:
// Top Rated fragment activity
return new HomeFragment();
case 1:
// Games fragment activity
return new CategoriesFragment();
case 2:
// Movies fragment activity
return new GalleryFragment();
}
return null;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return 3;
}
}
MY Parser Class는 다음과 같습니다 : -
다음과 같이내 base_activity.xml은 다음과 같습니다 - 다음과 같이
<android.support.v4.view.ViewPager xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="in.advance.Base" />
내 home_fragment.xml 파일은 다음과 같습니다 -
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/MainLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:clickable="true"
android:focusable="false"
android:background="#ffffff">
<android.support.v4.view.ViewPager xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="130dp"
tools:context="in.advance.Base" />
<TextView
android:id="@+id/tHeadline"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:textColor="#000000"
android:textSize="22sp"
android:textStyle="bold"
android:layout_marginLeft="5sp"
android:layout_marginRight="5sp"
android:gravity="left"
android:typeface="serif"
android:text="ajdvjka ajk dvajdv ajkl vdjkl "/>
<LinearLayout
android:id="@+id/lLayDateAuthor"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_below="@+id/tHeadline"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_marginTop="10dp">
<TextView
android:id="@+id/tAuthor"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="left"
android:textColor="#0000ff"
android:textStyle="italic"
android:layout_weight="1"
android:textSize="12sp"
android:typeface="serif"
android:text="By: FirstName LastName" />
<TextView
android:id="@+id/tDate"
android:textColor="#0000ff"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="right"
android:layout_weight="1"
android:textStyle="italic"
android:textSize="10sp"
android:typeface="serif"
android:text="30/Feb/2020 25:61 Xx" />
</LinearLayout>
<ImageView
android:id="@+id/iStoryImage"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="@+id/tStoryDetails"
android:layout_below="@+id/lLayDateAuthor"
android:layout_gravity="center_horizontal"
android:scaleType="fitCenter"
android:src="@drawable/indiacom" />
<TextView
android:id="@+id/tStoryDetails"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:maxLines="5"
android:layout_alignParentBottom="true"
android:layout_marginBottom="5dp"
android:gravity="left"
android:layout_marginLeft="5sp"
android:layout_marginRight="5sp"
android:textStyle="normal"
android:textSize="15sp"
android:typeface="serif"
android:text="TextView" />
</RelativeLayout>
01-13 16:12:29.155: D/HomeFragment(20997): OnCreate
01-13 16:12:29.155: D/HomeFragment(20997): onCreateView
01-13 16:12:29.160: D/HomeFragment(20997): doInBackground Method
01-13 16:12:29.220: D/Home Fragment(20997): Loading stories started
01-13 16:12:29.325: D/HomeFragment(20997): OnActivityCreated
01-13 16:12:29.325: D/HomeFragment(20997): OnResume
01-13 16:12:31.225: D/AllstoriesParser(20997): AppendCommonListener
01-13 16:12:31.250: D/Author Name:(20997): AFP
01-13 16:12:31.310: D/AllStoriesParser StoryNo:(20997): 1
01-13 16:12:31.310: D/AllStoriesParser list:(20997): Maria Sharapova to spearhead Russia against Poland in Fed Cup
01-13 16:12:31.315: D/Author Name:(20997): Indo-Asian News Service
01-13 16:12:31.400: D/AllStoriesParser Title:(20997): 2
01-13 16:12:31.400: D/AllStoriesParser list:(20997): Goa Minister takes a U-turn after facing flak for controversial remarks over LGBT community
|| to ||
01-13 16:12:38.910: D/Author Name:(20997): Krishnan Iyer
01-13 16:12:38.915: D/AllStoriesParser Title:(20997): 50
01-13 16:12:38.915: D/AllStoriesParser list:(20997): Cristiano Ronaldo wins FIFA Ballon d’Or 2014: The Award Ceremony – In Pics
01-13 16:12:38.920: D/HomeFragment(20997): OnPostExecute
01-13 16:12:38.950: D/HomeFragment(20997): NoteViewBaseAdapter Started
01-13 16:12:38.965: D/HomeFragment(20997): NoteViewAdapter.getView() Method
01-13 16:12:39.035: W/Settings(20997): Setting airplane_mode_on has moved from android.provider.Settings.System to android.provider.Settings.Global, returning read-only value.
01-13 16:12:39.040: D/HomeFragment(20997): NoteViewAdapter.getView() Method
내 OnCreate() 메소드의 HomeFragment Fragment 클래스에 있습니다. –
내 수정 된 답변보기 – barq
그래도 여전히 같은 결과입니다. UI가 아직 처음으로 채워지지 않고 있습니다. 탭을 통해 탐색하고 다시 액티비티로 돌아 오면 UI가 채워집니다. –