People, I'm trying to send data from a clicked item in a ListView (which is loaded into a Fragment of MainActivity, which in turn has a SlidingTabLayout structure) to load details in another Fragment, which is loaded in ItemActivity (which also has a structure of SlidingTabLayout). I'm trying to pass data between different Fragments of different Activities, NOT only between Activities (that I got to do, between LazyAdapter and ItemActivity activities).
For a few tries, the following error occurred:
27804-27804/br.com.toyansk.swipeabletabs E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: br.com.toyansk.swipeabletabs, PID: 27804
java.lang.NullPointerException
at br.com.toyansk.swipeabletabs.Detail_InfoFragment.onCreateView(Detail_InfoFragment.java:47)
at android.support.v4.app.Fragment.performCreateView(Fragment.java:1789)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:955)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1138)
at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:740)
at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1501)
at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:490)
at android.support.v4.app.FragmentStatePagerAdapter.finishUpdate(FragmentStatePagerAdapter.java:163)
at android.support.v4.view.ViewPager.populate(ViewPager.java:1105)
at android.support.v4.view.ViewPager.populate(ViewPager.java:951)
at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1473)
at android.view.View.measure(View.java:16540)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5137)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1404)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
at android.view.View.measure(View.java:16540)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5137)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
at android.support.v7.internal.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:124)
at android.view.View.measure(View.java:16540)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5137)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1404)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
at android.view.View.measure(View.java:16540)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5137)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
at android.view.View.measure(View.java:16540)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5137)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1404)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
at android.view.View.measure(View.java:16540)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5137)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2291)
at android.view.View.measure(View.java:16540)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1942)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1132)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1321)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1019)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5725)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
at android.view.Choreographer.doCallbacks(Choreographer.java:574)
at android.view.Choreographer.doFrame(Choreographer.java:544)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5086)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)
Here are the codes that currently I have:
LazyAdapter (which sends data at the click of the item in ListViewFragment):
import java.util.ArrayList;
import java.util.HashMap;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
public class LazyAdapter extends BaseAdapter {
Activity activity;
ArrayList<HashMap<String, String>> data;
LayoutInflater inflater=null;
ImageLoader imageLoader;
HashMap<String, String> pdv = new HashMap<String, String>();
public LazyAdapter(Activity a, ArrayList<HashMap<String, String>> d) {
activity = a;
data=d;
inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
imageLoader=new ImageLoader(activity.getApplicationContext());
}
public int getCount() {
return data.size();
}
public Object getItem(int position) {
return null;
}
public long getItemId(int position) {
return 0;
}
public View getView(final int position, View convertView, ViewGroup parent) {
View vi=convertView;
if(convertView==null)
vi = inflater.inflate(R.layout.list_row, parent, false);
pdv = data.get(position);
TextView Nome = (TextView)vi.findViewById(R.id.Nome);
TextView Endereco = (TextView)vi.findViewById(R.id.Endereco);
ImageView Logo =(ImageView)vi.findViewById(R.id.Logo);
// Setting all values in listview
Nome.setText(pdv.get(ListViewFragment.TAG_NOME));
Endereco.setText(pdv.get(ListViewFragment.TAG_ENDERECO));
imageLoader.DisplayImage(pdv.get(ListViewFragment.TAG_LOGO), Logo);
vi.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
// Get the position
pdv = data.get(position);
Intent intent = new Intent(activity, ItemActivity.class);
intent.putExtra("ID", pdv.get(ListViewFragment.TAG_ID));
intent.putExtra("Nome", pdv.get(ListViewFragment.TAG_NOME));
intent.putExtra("Endereco", pdv.get(ListViewFragment.TAG_ENDERECO));
intent.putExtra("Logo", pdv.get(ListViewFragment.TAG_LOGO));
activity.startActivity(intent);
}
});
return vi;
}
}
ItemActivity:
import br.com.toyansk.swipeabletabs.adapter.SlidingTabLayout;
import br.com.toyansk.swipeabletabs.adapter.SubPagerAdapter;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import java.util.List;
public class ItemActivity extends ActionBarActivity {
Toolbar toolbar;
ViewPager pager;
SubPagerAdapter adapter;
List<Fragment> mFragments;
SlidingTabLayout tabs;
CharSequence Titles[]={"Informações", "Serviços", "Avaliações"};
int Numboftabs =3;
//To load on Fragment
String ID;
String Nome_PDV;
String Endereco;
String Logo;
ImageLoader imageLoader = new ImageLoader(this);
public ImageView imageViewRound;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.home_single_item);
toolbar = (Toolbar) findViewById(R.id.tool_bar);
setSupportActionBar(toolbar);
adapter = new SubPagerAdapter(getSupportFragmentManager(),mFragments,Titles,Numboftabs);
// Assigning ViewPager View and setting the adapter
pager = (ViewPager) findViewById(R.id.pager);
pager.setAdapter(adapter);
// Assiging the Sliding Tab Layout View
tabs = (SlidingTabLayout) findViewById(R.id.tabs);
tabs.setDistributeEvenly(true); // To make the Tabs Fixed set this true, This makes the tabs Space Evenly in Available width
// Setting Custom Color for the Scroll bar indicator of the Tab View
tabs.setCustomTabColorizer(new SlidingTabLayout.TabColorizer() {
@Override
public int getIndicatorColor(int position) {
return getResources().getColor(R.color.tabsScrollColor);
}
});
// Setting the ViewPager For the SlidingTabsLayout
tabs.setViewPager(pager);
imageViewRound=(ImageView)findViewById(R.id.Logo);
Intent i = getIntent();
ID = i.getStringExtra("ID");
Nome = i.getStringExtra("Nome");
Endereco = i.getStringExtra("Endereco");
Logo = i.getStringExtra("Logo");
setTitle(Nome);
Detail_InfoFragment info = new Detail_InfoFragment();
info.setArguments(getIntent().getExtras());
getSupportFragmentManager().beginTransaction().add(android.R.id.content, info).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.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();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
adapter.SubPagerAdapter:
import br.com.toyansk.swipeabletabs.ListServicesFrag;
import br.com.toyansk.swipeabletabs.Detail_InfoFragment;
import br.com.toyansk.swipeabletabs.AvalFragment;
import br.com.toyansk.swipeabletabs.R;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.FragmentStatePagerAdapter;
import java.util.List;
public class SubPagerAdapter extends FragmentStatePagerAdapter {
CharSequence Titles[]; // This will Store the Titles of the Tabs which are Going to be passed when ViewPagerAdapter is created
int NumbOfTabs;
List<Fragment> fragmentList;
public SubPagerAdapter(FragmentManager fm, List<Fragment> fragments, CharSequence mTitles[], int mNumbOfTabsumb) {
super(fm);
this.Titles = mTitles;
this.NumbOfTabs = mNumbOfTabsumb;
fragmentList = fragments;
}
@Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return new ListServicesFrag();
case 1:
return new Detail_InfoFragment();
case 2:
return new AvalFragment();
}
return null;
}
// This method return the titles for the Tabs in the Tab Strip
@Override
public CharSequence getPageTitle(int position) {
return Titles[position];
}
// This method return the Number of tabs for the tabs Strip
@Override
public int getCount() {
return NumbOfTabs;
}
}
And finally, Detail_InfoFragment (that should receive the data coming from the click of ListViewFragment item):
import android.content.Intent;
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.ImageView;
import android.widget.TextView;
public class Detail_InfoFragment extends Fragment {
String ID;
String Nome;
String Endereco;
String Logo;
ImageLoader imageLoader = new ImageLoader(getActivity());
private ImageView imageViewRound;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.single_item, container, false);
imageViewRound=(ImageView)rootView.findViewById(R.id.Logo);
Bundle bundle = getArguments();
String ID = bundle.getString("ID"); //=> Here is the error
String Nome_PDV = bundle.getString("Nome");
String Endereco = bundle.getString("Endereco");
String Logo = bundle.getString("Logo");
TextView txt_Nome = (TextView) rootView.findViewById(R.id.Nome);
TextView txt_Endereco = (TextView) rootView.findViewById(R.id.Endereco);
ImageView imgLogo = (ImageView) rootView.findViewById(R.id.Logo);
// Set results to the TextViews
txt_Nome.setText(Nome);
txt_Endereco.setText(Endereco);
imageLoader.DisplayImage(Logo, imgLogo);
return rootView;
}
}
What's wrong and how to fix it? Thanks in advance!
