I'm trying to use le lib SlidingMenu in my app but i'm having some problems.
I'm getting this error:
11-04 15:50:46.225: E/FragmentManager(21112): No view found for id
0x7f040009 (com.myapp:id/menu_frame) for fragment
SampleListFragment{413805f0 #0 id=0x7f040009}
BaseActivity.java
package com.myapp;
import android.support.v4.app.FragmentTransaction;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.view.Menu;
import android.view.MenuItem;
import com.jeremyfeinstein.slidingmenu.lib.SlidingMenu;
import com.jeremyfeinstein.slidingmenu.lib.app.SlidingFragmentActivity;
public class BaseActivity extends SlidingFragmentActivity {
private int mTitleRes;
protected ListFragment mFrag;
public BaseActivity(int titleRes) {
mTitleRes = titleRes;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setTitle(mTitleRes);
// set the Behind View
setBehindContentView(R.layout.menu_frame);
if (savedInstanceState == null) {
FragmentTransaction t = this.getSupportFragmentManager().beginTransaction();
mFrag = new SampleListFragment();
t.replace(R.id.menu_frame, mFrag);
t.commit();
} else {
mFrag = (ListFragment) this.getSupportFragmentManager().findFragmentById(R.id.menu_frame);
}
// customize the SlidingMenu
SlidingMenu slidingMenu = getSlidingMenu();
slidingMenu.setMode(SlidingMenu.LEFT);
slidingMenu.setTouchModeAbove(SlidingMenu.TOUCHMODE_FULLSCREEN);
slidingMenu.setShadowWidthRes(R.dimen.slidingmenu_shadow_width);
slidingMenu.setShadowDrawable(R.drawable.slidingmenu_shadow);
slidingMenu.setBehindOffsetRes(R.dimen.slidingmenu_offset);
slidingMenu.setFadeDegree(0.35f);
slidingMenu.setMenu(R.layout.slidingmenu);
getActionBar().setDisplayHomeAsUpEnabled(true);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
toggle();
return true;
}
return super.onOptionsItemSelected(item);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
menu.xml
<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
android:name="com.myapp.SampleListFragment"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</fragment>
menu_frame.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/menu_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" />
SampleListFragment.java
package com.myapp;
import android.content.Context;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;
public class SampleListFragment extends ListFragment {
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
return inflater.inflate(R.layout.list, null);
}
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
SampleAdapter adapter = new SampleAdapter(getActivity());
for (int i = 0; i < 20; i++) {
adapter.add(new SampleItem("Sample List", android.R.drawable.ic_menu_search));
}
setListAdapter(adapter);
}
private class SampleItem {
public String tag;
public int iconRes;
public SampleItem(String tag, int iconRes) {
this.tag = tag;
this.iconRes = iconRes;
}
}
public class SampleAdapter extends ArrayAdapter<SampleItem> {
public SampleAdapter(Context context) {
super(context, 0);
}
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = LayoutInflater.from(getContext()).inflate(R.layout.row, null);
}
ImageView icon = (ImageView) convertView.findViewById(R.id.row_icon);
icon.setImageResource(getItem(position).iconRes);
TextView title = (TextView) convertView.findViewById(R.id.row_title);
title.setText(getItem(position).tag);
return convertView;
}
}
}
MainActivity.java
package com.myapp;
import java.util.ArrayList;
import beans.Tweet;
import database.DatabaseHelper;
import adapters.TweetListViewAdapter;
import android.os.Bundle;
import android.widget.ListView;
public class MainActivity extends BaseActivity {
public MainActivity(){
super(R.string.app_name);
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final ListView listview = (ListView) findViewById(R.id.listview_tweets);
DatabaseHelper db = new DatabaseHelper(this);
ArrayList<Tweet> tweets = db.getAllTweets();
TweetListViewAdapter adapter = new TweetListViewAdapter(this, R.layout.listview_item_row, tweets);
listview.setAdapter(adapter);
setSlidingActionBarEnabled(false);
}
}
I don't understand why the view menu_frame is not found because I have a view with the id menu_frame and this view is a child of the layout menu_frame.
setBehindContentView() is used to set the layout of the SlidingMenu.
/**
* Set the behind view content to an explicit view.
* This view is placed directly into the behind view 's view hierarchy.
* It can itself be a complex view hierarchy.
*
* #param view The desired content to display.
* #param layoutParams Layout parameters for the view. (unused)
*/
public void setBehindContentView(View view, LayoutParams layoutParams) {
mViewBehind = view;
mSlidingMenu.setMenu(mViewBehind);
}
However, since in the BaseActivity you called slidingMenu.setMenu(R.layout.slidingmenu);, the menu layout will be overwritten to R.layout.slidingmenu. Hence, R.layout.menu_frame is not inflated and the ID cannot be found.
Try to remove either setBehindContentView() or setMenu().
Related
hello please I need help
I want to add an Edittext to use it for search for recycleview
my program will be run without crashing but it not work
in my project I have a BottomNavigation (fragment) and inside it I used Tablayout (fragment) (a fragment inside another fragment (Tab inside bottom navigation))
I have no error but my search is not working
**If It is possible for you , please add this code inside your new blank project and test it and help me **
I used this search totorial by this learning project
https://codinginflow.com/tutorials/android/searchview-recyclerview
My Main Activity code is(Fragment of BottomNavigation is inside MainActicity)
package forokans.sirwansoft.forlearn;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.design.widget.BottomNavigationView;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.AppCompatActivity;
import android.view.MenuItem;
import android.widget.FrameLayout;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
FrameLayout frameLayout;
//call Fragments class
private BottomNavigationFragment fragmentOne;
/* private FragmentTwo fragmentTwo;
private FragmentThree fragmentThree;*/
private BottomNavigationView.OnNavigationItemSelectedListener mOnNavigationItemSelectedListener
= new BottomNavigationView.OnNavigationItemSelectedListener() {
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem item) {
switch (item.getItemId()) {
case R.id.navigation_home:
setFragment(fragmentOne);
return true;
case R.id.navigation_dashboard:
/*
setFragment(fragmentTwo);
*/
return true;
case R.id.navigation_notifications:
/*
setFragment(fragmentThree);
*/
return true;
}
return false;
}
};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getSupportActionBar().hide();
BottomNavigationView navigation = (BottomNavigationView) findViewById(R.id.navigation);
navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener);
//make new from fragments
//fragment of BottomNavigation
fragmentOne = new BottomNavigationFragment();
/* fragmentThree = new FragmentThree();
fragmentTwo = new FragmentTwo();
*/
setFragment(fragmentOne);
frameLayout = findViewById(R.id.main_fream);
}
private void setFragment(Fragment fragment) {
FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.main_fream, fragment);
fragmentTransaction.commit();
}
}
My Layout Of main_activity.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<FrameLayout
android:id="#+id/main_fream"
android:layout_width="match_parent"
android:layout_height="match_parent">
</FrameLayout>
<android.support.design.widget.BottomNavigationView
android:id="#+id/navigation"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="0dp"
android:layout_marginEnd="0dp"
android:background="?android:attr/windowBackground"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:menu="#menu/navigation" />
</android.support.constraint.ConstraintLayout>
My Bottom Navigation Fragment class
package forokans.sirwansoft.forlearn;
import android.os.Bundle;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
/**
* A simple {#link Fragment} subclass.
*/
public class BottomNavigationFragment extends Fragment {
TabLayout tabLayout;
EditText search;
ViewPager viewPager;
public BottomNavigationFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view= inflater.inflate(R.layout.fragment_bottom_navigation, container, false);
search=view.findViewById(R.id.searchinfragmentOne);
tabLayout=view.findViewById(R.id.tablayout_id);
viewPager=view.findViewById(R.id.viewpager);
ViewPagerAdapterForTabs adapter = new ViewPagerAdapterForTabs(getChildFragmentManager());
// this is Tab Fragments
adapter.AddFragment(new TabFragment(),"Tab1");
viewPager.setAdapter(adapter);
tabLayout.setupWithViewPager(viewPager);
return view;
}
}
**and My Layout Of this Buttom Navigation **
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".BottomNavigationFragment">
<EditText
android:id="#+id/searchinfragmentOne"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:hint="search ..." />
<android.support.design.widget.TabLayout
android:id="#+id/tablayout_id"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/colorAccent"
app:tabGravity="fill"
app:tabIndicatorColor="#color/colorPrimary"
app:tabMode="scrollable"
app:tabTextColor="#color/colorPrimaryDark" />
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"></android.support.v4.view.ViewPager>
</LinearLayout>
Tab Fragment
package forokans.sirwansoft.forlearn;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import java.util.ArrayList;
import java.util.List;
/**
* A simple {#link Fragment} subclass.
*/
public class TabFragment extends Fragment {
public List<Items> lstItems;
public RecyclerViewAdapter mAdapter;
EditText search;
public TabFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_tab, container, false);
lstItems = new ArrayList<>();
lstItems.add(new Items("a", "11265", "27500", "horizental", R.drawable.gemtv));
lstItems.add(new Items("b", "11265", "27500", "horizental", R.drawable.bbc));
lstItems.add(new Items("c", "11265", "27500", "horizental", R.drawable.voa));
lstItems.add(new Items("d", "11265", "27500", "horizental", R.drawable.manoto));
search = view.findViewById(R.id.searchintabbadrkurdi);
search.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
#Override
public void afterTextChanged(Editable s) {
filter(s.toString());
}
});
RecyclerView myrv = view.findViewById(R.id.recyclerview_id_badr_kurdi);
RecyclerViewAdapter mAdapter = new RecyclerViewAdapter(getContext(), lstItems);
myrv.setLayoutManager(new GridLayoutManager(getContext(), 3));
myrv.setAdapter(mAdapter);
/*mRecyclerView = findViewById(R.id.recyclerView);
mRecyclerView.setHasFixedSize(true);
mLayoutManager = new LinearLayoutManager(this);
mAdapter = new RecyclerViewAdapter(mExampleList);
mRecyclerView.setLayoutManager(mLayoutManager);
mRecyclerView.setAdapter(mAdapter);*/
return view;
}
private void filter(String text) {
ArrayList<Items> filteredList = new ArrayList<>();
for (Items item : lstItems) {
if (item.getTvName().toLowerCase().contains(text.toLowerCase())) {
filteredList.add(item);
}
}
mAdapter.filterList(filteredList);
}
}
Tab Layout . xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".TabFragment">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<EditText
android:id="#+id/searchintabbadrkurdi"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<android.support.v7.widget.RecyclerView
android:id="#+id/recyclerview_id_badr_kurdi"
android:layout_width="match_parent"
android:layout_height="match_parent">
</android.support.v7.widget.RecyclerView>
</LinearLayout>
</FrameLayout>
My Item Class
package forokans.sirwansoft.forlearn;
public class Items {
private String TvName;
private String Forekans;
private String BistoHaft;
private String Horizental;
private int ImageSrc;
//main constructor
public Items() {
}
// constructor
public Items(String tvName, String forekans, String bistoHaft, String horizental, int imageSrc) {
TvName = tvName;
Forekans = forekans;
BistoHaft = bistoHaft;
Horizental = horizental;
ImageSrc = imageSrc;
}
//getter
public String getTvName() {
return TvName;
}
//getter
public String getForekans() {
return Forekans;
}
public String getBistoHaft() {
return BistoHaft;
}
//getter
public int getImageSrc() {
return ImageSrc;
}
public String getHorizental() {
return Horizental;
}
}
My Recycler View Adapter Class
package forokans.sirwansoft.forlearn;
import android.content.Context;
import android.support.v7.widget.CardView;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.List;
public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.MyViewHolder> {
private Context mContext;
private List<Items> lstItems;
public RecyclerViewAdapter(Context mContext, List<Items> lstItems) {
this.mContext = mContext;
this.lstItems = lstItems;
}
#Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view;
LayoutInflater mInflater = LayoutInflater.from(mContext);
view = mInflater.inflate(R.layout.recycler_view_item, parent, false);
return new MyViewHolder(view);
}
#Override
public void onBindViewHolder(MyViewHolder holder, final int position) {
//in main activity displays
holder.tv_Items_TvName.setText(lstItems.get(position).getTvName());
holder.tv_Items_cat.setText(lstItems.get(position).getForekans());
holder.tv_Items_desc.setText(lstItems.get(position).getBistoHaft());
holder.tv_Items_horizental.setText(lstItems.get(position).getHorizental());
holder.img_Items_ImageSrc.setImageResource(lstItems.get(position).getImageSrc());
holder.cardView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(mContext, "Clicked", Toast.LENGTH_SHORT).show();
}
});
}
#Override
public int getItemCount() {
return lstItems.size();
}
public void filterList(ArrayList<Items> filteredList) {
lstItems = filteredList;
notifyDataSetChanged();
}
public static class MyViewHolder extends RecyclerView.ViewHolder {
TextView tv_Items_TvName;
TextView tv_Items_cat;
TextView tv_Items_desc;
TextView tv_Items_horizental;
ImageView img_Items_ImageSrc;
CardView cardView;
public MyViewHolder(View itemView) {
super(itemView);
tv_Items_TvName = itemView.findViewById(R.id.Items_TvName_id);
tv_Items_cat = itemView.findViewById(R.id.Items_cat_id);
tv_Items_desc = itemView.findViewById(R.id.Items_desc_id);
tv_Items_horizental = itemView.findViewById(R.id.Items_Hor_id);
img_Items_ImageSrc = itemView.findViewById(R.id.Items_img_id);
cardView = itemView.findViewById(R.id.cardview_id);
}
}
}
And My ViewPagerAdapter class For Tabs
package forokans.sirwansoft.forlearn;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import java.util.ArrayList;
import java.util.List;
public class ViewPagerAdapterForTabs extends FragmentPagerAdapter {
private final List<Fragment> FragmentList = new ArrayList<>();
private final List<String> FragmentListTitles = new ArrayList<>();
public ViewPagerAdapterForTabs(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
return FragmentList.get(position);
}
#Override
public int getCount() {
return FragmentListTitles.size();
}
#Nullable
#Override
public CharSequence getPageTitle(int position) {
return FragmentListTitles.get(position);
}
public void AddFragment(Fragment fragment, String titles) {
FragmentList.add(fragment);
FragmentListTitles.add(titles);
}
}
i found out
change this
RecyclerView myrv = view.findViewById(R.id.recyclerview_id_badr_kurdi);
RecyclerViewAdapter mAdapter = new RecyclerViewAdapter(getContext(), lstItems);
myrv.setLayoutManager(new GridLayoutManager(getContext(), 3));
myrv.setAdapter(mAdapter);
to this
RecyclerView myrv = view.findViewById(R.id.recyclerview_id_badr_kurdi);
mAdapter = new RecyclerViewAdapter(getContext(), lstItems);
myrv.setLayoutManager(new GridLayoutManager(getContext(), 3));
myrv.setAdapter(mAdapter);
the reason is
before We call onCreate this RecyclerViewAdapter mAdapter = new RecyclerViewAdapter(getContext(), lstItems); was initialized and in last one if we make this class a new abject , it will be a new initializing value
I am making a fitness app, where I want to have 3 nesting :
ListView with muscle group items
ListView of exercises (appears when to click on item from the muscle group ListView)
and description of exercise.
Something like this design:
But I don't know how do realize this.
Do I need create a new fragment to each item or I can use ViewPager here(if yes,how to do this)?
Give me advice,please, how to realize this design (any links of the same structure projects or any other examples)
thank you in advance
Here is the sample code
package com.sw.gitans201608042027;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
public class MainActivity extends FragmentActivity {
private static MainActivity mCurrent = null;
public static MainActivity getInstance() {
return mCurrent;
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mCurrent = this;
setContentView(R.layout.activity_main);
switchFragment(new ListFragment());
}
public void switchFragment(Fragment f) {
FragmentManager fm = getSupportFragmentManager();
FragmentTransaction transaction = fm.beginTransaction();
transaction.replace(R.id.container, f);
transaction.commit();
}
}
package com.sw.gitans201608042027;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
public class ListFragment extends Fragment implements OnItemClickListener {
private String[] contents = { "a", "b" };
private String[] aArr = { "a1", "a2" }, bArr = { "b1", "b2" };
private SampleAdapter mAdapter;
public ListFragment(String[] contents) {
this.contents = contents;
}
public ListFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.lv, container, false);
mAdapter = new SampleAdapter(getActivity(), contents);
((ListView) v.findViewById(R.id.lv)).setAdapter(mAdapter);
((ListView) v.findViewById(R.id.lv)).setOnItemClickListener(this);
return v;
}
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
if (mAdapter.getItem(arg2) != null) {
if (((String) mAdapter.getItem(arg2)).equals("a") || ((String) mAdapter.getItem(arg2)).equals("b")) {
if (((String) mAdapter.getItem(arg2)).equals("a")) {
if (MainActivity.getInstance() != null)
MainActivity.getInstance().switchFragment(new ListFragment(aArr));
} else {
if (MainActivity.getInstance() != null)
MainActivity.getInstance().switchFragment(new ListFragment(bArr));
}
} else {
if (MainActivity.getInstance() != null)
MainActivity.getInstance().switchFragment(new TextFragment((String) mAdapter.getItem(arg2)));
}
}
}
}
package com.sw.gitans201608042027;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
public class SampleAdapter extends BaseAdapter {
private String[] contents;
private LayoutInflater mInflater;
public SampleAdapter(Context ctxt, String[] contents) {
this.contents = contents;
mInflater = LayoutInflater.from(ctxt);
}
#Override
public int getCount() {
if (contents != null)
return contents.length;
else
return 0;
}
#Override
public Object getItem(int position) {
if (contents == null || position >= contents.length)
return null;
else
return contents[position];
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
Holder holder;
if (convertView == null) {
convertView = mInflater.inflate(R.layout.list_item, null);
holder = new Holder();
holder.tv = (TextView) convertView.findViewById(R.id.list_txt);
convertView.setTag(holder);
} else
holder = (Holder) convertView.getTag();
holder.tv.setText(contents[position]);
return convertView;
}
private class Holder {
TextView tv;
}
}
package com.sw.gitans201608042027;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
public class TextFragment extends Fragment {
private String desc;
public TextFragment(String s){
desc = s;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.list_item, container, false);
((TextView)v.findViewById(R.id.list_txt)).setText(desc);
return v;
}
}
activity_main.xml
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="com.sw.gitans201608042027.MainActivity" >
<FrameLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
list_item.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TextView
android:id="#+id/list_txt"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</RelativeLayout>
lv.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ListView
android:id="#+id/lv"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
I followed all the steps from various sources for getting listviews to work but my one
doesn't seem to display anything. This list view code(shown below) is activated with a tab fragment manager I won't put that here as to not bog you all down with code as there's a lot here already. It is most likely a problem with the ListFragment itself but I suppose it could be the adapter.
What happens is nothing gets displayed at all just the searchview that I have put in the main xml layout. I can switch freely between tabs with no crashes but just nothing displays in any of my listviews. I have another list which is a friends list(not included in this code snippet) and that uses a generic view holder interface and that one does not work either which suggests the problem is most likely in my ListFragment but I just can't pinpoint it. Any help is appreciated and I hope some can learn something from this, Thank you.
This is my adapter for the settings category list
package codeblox.com.listfragmentexample;
import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.ToggleButton;
import java.util.ArrayList;
import codblox.com.listfragmentexample.R;
public class SettingsAdapter extends ArrayAdapter<Settings.SettingsCategories>
{
private final Activity context;
String[] text;
ArrayList<Settings.SettingsCategories> itemsCopy;
class ViewHolder
{
public TextView txt;
public CheckBox state;
public ImageView settingImg;
public EditText input;
public ToggleButton toggle;
public Button settingInfo; // click it to show what the setting does
}
public SettingsAdapter(Context context, ArrayList<Settings.SettingsCategories> items)
{
super(context, R.layout.settings_category_row, items);
this.context = (Activity) context;
this.itemsCopy = items;
}
#Override
public View getView(int position, View convertView, ViewGroup parent)
{
ViewHolder holder = new ViewHolder();
int viewType = this.getItemViewType(position);
if(convertView == null)
{
// inflate the GridView item layout
LayoutInflater inflater = LayoutInflater.from(getContext());
convertView = inflater.inflate(R.layout.settings_category_row, parent, false);
// initialize the view holder
holder = new ViewHolder();
holder.settingImg = (ImageView) convertView.findViewById(R.id.settingCategoryImg);
holder.txt = (TextView) convertView.findViewById(R.id.settingCategoryName);
convertView.setTag(holder);
} else {
// recycle the already inflated view
holder = (ViewHolder) convertView.getTag();
}
// fill data
holder = (ViewHolder) convertView.getTag();
String s = getItem(position).toString();
holder.txt.setText(itemsCopy.get(position).getSettingText());
holder.settingImg.setImageResource(itemsCopy.get(position).getImgResId());
return convertView;
}
}
This is my list fragment
package codeblox.com.listfragmentexample
import android.content.res.Resources;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import java.util.ArrayList;
import codeblox.com.listfragmentexample.R;
public class Settings extends ListFragment implements View.OnLongClickListener
{
private ListView settingsList;
private ArrayList<SettingsCategories> mItems;
private ArrayAdapter<SettingsCategories> settingsAdapter;
private int numCategories;
String[] CategoryArray = new String[] {"Privacy and Security","Account","Networks","Camera Options","Storage","Accesibility","Features"};
int[] resIds = new int[] {R.drawable.security_settings_icon,R.drawable.account_settings_icon,
R.drawable.network_settings_icon,R.drawable.camera_settings_icon,R.drawable.storage_settings_icon,
R.drawable.accessibility_settings_icon,R.drawable.feature_settings_icon,};
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState)
{
View settingsView = inflater.inflate(R.layout.settings, container, false);
settingsList = (ListView)settingsView.findViewById(android.R.id.list);
// initialize the items list
return settingsView;
}
#Override
public void onViewCreated(View view, Bundle savedInstanceState)
{
super.onViewCreated(view, savedInstanceState);
// remove the dividers from the ListView of the ListFragment
settingsList = getListView();
settingsList.setDivider(null);
mItems = new ArrayList<SettingsCategories>();
Resources resources = getResources();
for(int c = 0; c < numCategories; c++)
{
mItems.add(new SettingsCategories(CategoryArray[c],resIds[c]));
}
// initialize and set the list adapter
// settingsAdapter = new SettingsAdapter(this.getActivity(), mItems);
setListAdapter(new SettingsAdapter(getActivity(), mItems));
settingsList.setAdapter(settingsAdapter);
}
public Settings()
{
this.numCategories = CategoryArray.length;
}
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
}
#Override
public boolean onLongClick(View v)
{
return false;
}
#Override
public void onListItemClick(ListView l, View v, int position, long id)
{
Object i = l.getItemAtPosition(position);
}
public class SettingsCategories
{
private String settingText;
private int imgResId;
SettingsCategories(String settingText,int imgResId)
{
this.settingText = settingText;
this.imgResId = imgResId;
}
public String getSettingText()
{
return this.settingText;
}
public int getImgResId()
{
return this.imgResId;
}
}
}
and finally these are my xml layouts (the first one is the main view and the second one is the view of a single item in the list
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
>
<SearchView
android:id="#+id/searchFunction"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
</SearchView>
<ListView
android:id="#android:id/list"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</ListView>
</RelativeLayout>
this represents an individual item in the list
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<ImageView
android:layout_width="52dp"
android:layout_height="52dp"
android:id="#+id/settingCategoryImg"
/>
<TextView
android:layout_width="fill_parent"
android:layout_height="52dp"
android:text=""
android:id="#+id/settingCategoryName"
android:layout_alignParentTop="true"
android:layout_toRightOf="#+id/settingCategoryImg"
/>
</RelativeLayout>
You are setting null adapter so it is not refreshing.
you are commented initialization part
check in the following method:
#Override
public void onViewCreated(View view, Bundle savedInstanceState)
{
super.onViewCreated(view, savedInstanceState);
// remove the dividers from the ListView of the ListFragment
settingsList = getListView();
settingsList.setDivider(null);
mItems = new ArrayList<SettingsCategories>();
Resources resources = getResources();
for(int c = 0; c < numCategories; c++)
{
mItems.add(new SettingsCategories(CategoryArray[c],resIds[c]));
}
// initialize and set the list adapter
// settingsAdapter = new SettingsAdapter(this.getActivity(), mItems);
setListAdapter(new SettingsAdapter(getActivity(), mItems));
settingsList.setAdapter(settingsAdapter);
}
Your are using ListFragement and again inflating layout. that is not a good idea. when you are extending listfragment then inflating the layout is not required and and modify above method like:
#Override
public void onViewCreated(View view, Bundle savedInstanceState)
{
super.onViewCreated(view, savedInstanceState);
// remove the dividers from the ListView of the ListFragment
settingsList = getListView();
settingsList.setDivider(null);
mItems = new ArrayList<SettingsCategories>();
Resources resources = getResources();
for(int c = 0; c < numCategories; c++)
{
mItems.add(new SettingsCategories(CategoryArray[c],resIds[c]));
}
// initialize and set the list adapter
settingsAdapter = new SettingsAdapter(this.getActivity(), mItems);
//setListAdapter(new SettingsAdapter(getActivity(), mItems));
settingsList.setAdapter(settingsAdapter);
}
I'm new to Android development and Java outside of simple JavaScripts for web pages. I've created a view pager that displays three different fragments. For the second fragment, BooksFragment, I use a grid view to display a grid of buttons that when the user presses should replace BooksFragment with another view.
The problem I run into is that although I'm using .replace() to replace the fragment, the second fragment just shows up on top of the original. Now, I've searched my problem extensively and I believe the reason that usually happens is when the original fragment is not created dynamically. Being the noob that I am, it does seem like I AM creating the fragments dynamically but I could be mistaken (I'm not using any tags in any of my XML files). Can anyone please help me out? My code is below:
MainActivity.java
import android.app.ActionBar.Tab;
import android.app.Activity;
import android.app.ActionBar;
import android.support.v4.app.Fragment;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.os.Build;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager;
import android.support.v4.app.FragmentManager;
public class MainActivity extends FragmentActivity implements
ActionBar.TabListener {
// strings for tabs
private ViewPager viewPager;
private TabsPagerAdapter mAdapter;
private ActionBar actionBar;
// tab titles
private String[] tabs = {"Status",
"Schedule",
"Books"};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Initialization
viewPager = (ViewPager) findViewById(R.id.pager);
actionBar = getActionBar();
mAdapter = new TabsPagerAdapter(getSupportFragmentManager());
viewPager.setAdapter(mAdapter);
//actionBar.setHomeButtonEnabled(false);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
// Adding 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 position) {
// on changing the page
// make respected tab selected
actionBar.setSelectedNavigationItem(position);
}
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
#Override
public void onPageScrollStateChanged(int arg0) {
}
});
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.pager, new PlaceholderFragment()).commit();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, 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);
}
public static class PlaceholderFragment extends Fragment {
public PlaceholderFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container,
false);
return rootView;
}
}
#Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
// 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
}
}
TabsPagerAdapter.java
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
public class TabsPagerAdapter extends FragmentPagerAdapter{
public TabsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int index) {
switch (index) {
case 0:
// First fragment activity
return new StatusFragment();
case 1:
// Second fragment activity
return new ScheduleFragment();
case 2:
// Third fragment activity
return new BooksFragment();
}
return null;
}
#Override
public int getCount() {
// get item count - equal to number of tabs
return 3;
}
}
BooksFragment.java
import java.util.ArrayList;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.GridView;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemSelectedListener;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
public class BooksFragment extends Fragment implements OnClickListener {
// get database data
private static final String DB_NAME = "bookReadingTracker";
private static final String TABLE_NAME = "book_names";
private static final String BOOK_NAME_ID = "_id";
private static final String BOOKNAME = "bookname";
private static final String BOOKABBR = "bookabbr";
private SQLiteDatabase database;
private ArrayList<String> allbooksabbr;
private OnItemSelectedListener listener;
GridView gridView;
public static BooksFragment newInstance() {
BooksFragment f = new BooksFragment();
return f;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
ExternalDbOpenHelper dbOpenHelper = new ExternalDbOpenHelper(getActivity(), DB_NAME);
database = dbOpenHelper.openDataBase();
fillAllbooksabbr();
View view = inflater.inflate(R.layout.books_fragment, container, false);
gridView = (GridView) view.findViewById(R.id.gridviewBooks);
gridView.setAdapter(new MyAdapter(getActivity(), allbooksabbr));
gridView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View v,
int position, long id) {
///////////////////
Fragment chapterDetailFragment = ChaptersFragment.newInstance();
FragmentTransaction transaction = getChildFragmentManager().beginTransaction();
transaction.addToBackStack(null);
transaction.replace(R.id.booksFragmentHolder, chapterDetailFragment).commit();
/////////////////////
}
});
return view;
}
private void fillAllbooksabbr() {
allbooksabbr = new ArrayList<String>();
Cursor allbooksabbrCursor = database.query(TABLE_NAME, new String[] {BOOK_NAME_ID, BOOKABBR},
null, null, null, null, "CAST (" + BOOK_NAME_ID + " AS INTEGER)");
allbooksabbrCursor.moveToFirst();
if(!allbooksabbrCursor.isAfterLast()) {
do {
String bookabbr_array = allbooksabbrCursor.getString(1);
allbooksabbr.add(bookabbr_array);
} while (allbooksabbrCursor.moveToNext());
}
allbooksabbrCursor.close();
}
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
}
}
MyAdapter.java
import java.util.ArrayList;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
public class MyAdapter extends BaseAdapter {
private Context context;
private ArrayList<String> allbooksabbr;
public MyAdapter(Context context, ArrayList<String> allbooksabbr) {
this.context = context;
this.allbooksabbr = allbooksabbr;
}
public View getView(int position, View convertView, ViewGroup parent) {
View gridView;
if (convertView == null) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
gridView = inflater.inflate(R.layout.books_button, null);
} else {
gridView = (View) convertView;
}
//gridView = new View(context);
gridView.setBackgroundColor(0xff645C69);
TextView bookButton = (TextView) gridView.findViewById(R.id.bookbutton);
bookButton.setText(allbooksabbr.get(position));
return gridView;
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return allbooksabbr.size();
}
#Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return null;
}
#Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
}
Here are my XML files:
fragment_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="com.gclapps.bookreadingscheduletracker.MainActivity$PlaceholderFragment" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/hello_world" />
</RelativeLayout>
books_fragment.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/booksFragmentHolder"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:padding="10dp" >
<TextView
android:id="#+id/textViewBooks"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Books"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="#666666"
android:paddingTop="10dp"
android:paddingBottom="5dp" />
<GridView
android:id="#+id/gridviewBooks"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:columnWidth="60dp"
android:gravity="center"
android:numColumns="auto_fit"
android:stretchMode="columnWidth"
android:verticalSpacing="2dp"
android:horizontalSpacing="2dp" >
</GridView>
</FrameLayout>
Please help me find the reason why my BooksFragment view doesn't get replaced with my ChaptersFragment view. If the BooksFragment view is indeed not created dynamically, please help me do so. I've read the documentation on how to do it, but am not able to figure out how to do it in my case with using the viewpager. Thanks!
Ok so after a quick look through your code, I noticed you used getChildFragmentManager() here:
FragmentTransaction transaction = getChildFragmentManager().beginTransaction();
getChildFragmentManager() manages fragments that are children of the current fragment. So when you call replace() , it doesn't actually remove the displayed BookFragment since it is not a child of the current fragment (the current fragment IS the BookFragment).
So normally to replace the fragment, I'd call getSupportFragmentManager() to get the right manager, but since you're using a ViewPager it makes things more difficult. You'd probably need to somehow change the ViewPager adapter on gridview item click with a new adapter that returns ChapterDetailFragment in its getItem() method.
You might be able to do something like this:
public class TabsPagerAdapter extends FragmentPagerAdapter{
private boolean isChapterDetailShowing;
private int chapter;
public TabsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int index) {
switch (index) {
case 0:
// First fragment activity
return new StatusFragment();
case 1:
// Second fragment activity
return new ScheduleFragment();
case 2:
// Third fragment activity
if (isChapterDetailShowing)
return new ChapterDetailFragment();
else
return new BooksFragment();
}
return null;
}
public void showChapter(int chapter) {
this.chapter = chapter;
isChapterDetailShowing = true;
notifyDataSetChanged();
}
Then create a method in the Activity, which calls the showChapter() on the adapter. This method would be called in BookFragment's GridView onItemClickListener (use getActivity() and cast it to MainActivity).
Disclaimer: not 100% sure this will work
Update:
Just so you know, when i try importing the project I end up with more errors than i can count thus why i'm here trying to figure it out. My sliding was working fine, it was just adding a listmenu that was throwing me off. Thank you for being patient with me.
I didn't change the main so here it is anyways:
package com.projectcaruso.nfp;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
I tired to import his code into mine as the MenuFragment.java
package com.projectcaruso.nfp;
import android.content.Context;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;
public class MenuFragment extends ListFragment {
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
return inflater.inflate(R.layout.list, null);
}
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
SampleAdapter adapter = new SampleAdapter(getActivity());
for (int i = 0; i < 20; i++) {
adapter.add(new SampleItem("Sample List", android.R.drawable.ic_menu_search));
}
setListAdapter(adapter);
}
private class SampleItem {
public String tag;
public int iconRes;
public SampleItem(String tag, int iconRes) {
this.tag = tag;
this.iconRes = iconRes;
}
}
public class SampleAdapter extends ArrayAdapter<SampleItem> {
public SampleAdapter(Context context) {
super(context, 0);
}
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = LayoutInflater.from(getContext()).inflate(R.layout.row, null);
}
ImageView icon = (ImageView) convertView.findViewById(R.id.row_icon);
icon.setImageResource(getItem(position).iconRes);
TextView title = (TextView) convertView.findViewById(R.id.row_title);
title.setText(getItem(position).tag);
return convertView;
}
}
}
The list.xml is blank
the activity_main.xml is as follows:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/hello_world" />
</RelativeLayout>
There are many problems with your current code. I suggest you look at the sample given in Sliding menu (SlidingFragmentActivity,SlidingListActivity) examples
You CAN NOT have two Activities running at the same time. Sliding menu is in the back, but it is managed by the front activity. What you are looking for is a Fragment.
Update:
Activity, ListFragment samples may help.
Basiclly what you need is
// set the content view
setBehindContentView(R.layout.fragment_menu);
Should be a blank layout. Then the important part:
return inflater.inflate(R.layout.list, null);
If you do super.onCreateView() that will just do nothing or crash like what you having now. I strongly recommend you looking at the two samples in the link.