Develop Reference

How to implement onClickListener on a custom adapter?

I am learning to make a simple time table managing application.
I have a list of courses displayed. Each item in a list is a textview + a delete button. The onClick Listener in my list item isn't working as expected. When I click on the delete button, it is working fine. However, I want to open up some other activity when user clicks on the textview of the list item.
Code:
ShowAll.java (the main activity in which I am displaying a list of classes)
package com.example.android.mytimetable;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
import java.util.ArrayList;
public class ShowAll extends ActionBarActivity {
private ArrayAdapter<String> adapter ;
ArrayList <ClassDetail> classesDetail ;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_show_all);
this.bindAdapter();
ListView listView = (ListView) this.findViewById(R.id.class_list);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
Log.v("Item", "clicked");
Intent intent = new Intent(view.getContext(), ShowAllClicked.class);
ClassDetail classDetail = classesDetail.get(i);
Bundle bundle = new Bundle();
bundle.putString("CLASS_NAME", classDetail.class_name);
bundle.putString("BUILDING", classDetail.building);
bundle.putString("MONDAY_START", classDetail.monday_start);
bundle.putString("MONDAY_END", classDetail.monday_end);
bundle.putString("TUESDAY_START", classDetail.tuesday_start);
bundle.putString("TUESDAY_END", classDetail.tuesday_end);
bundle.putString("WEDNESDAY_START", classDetail.wednesday_start);
bundle.putString("WEDNESDAY_END", classDetail.wednesday_end);
bundle.putString("THURSDAY_START", classDetail.thursday_start);
bundle.putString("THURSDAY_END", classDetail.thursday_end);
bundle.putString("FRIDAY_START", classDetail.friday_start);
bundle.putString("FRIDAY_END", classDetail.friday_end);
intent.putExtras(bundle);
startActivity(intent);
}
});
}
void bindAdapter() {
DBHelper db = new DBHelper(this);
classesDetail = db.getClassesDetail();
ArrayList <String> classes = new ArrayList<>();
for(int i = 0 ; i < classesDetail.size() ; i++) {
Log.v("Adding ", classesDetail.get(i).class_name);
classes.add(classesDetail.get(i).class_name);
}
if(classes.size() == 0)
((TextView) this.findViewById(R.id.holiday)).setText(getString(R.string.noClass));
CustomArrayAdapter customArrayAdapter = new CustomArrayAdapter(classes, this);
((ListView) this.findViewById(R.id.class_list)).setAdapter(customArrayAdapter);
}
#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_show_all, 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.
return super.onOptionsItemSelected(item);
}
}
activity_show_all.xml (the xml layout of ShowAll.java)
<LinearLayout 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:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin"
tools:context="com.example.android.mytimetable.ShowAll"
android:orientation="vertical">
<ListView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/class_list"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/holiday"/>
</LinearLayout>
CustomArrayAdapter.java (The custom array adapter file)
package com.example.android.mytimetable;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ListAdapter;
import android.widget.TextView;
import java.util.ArrayList;
/**
* Created by Aman Goel on 02-08-2015.
*/
public class CustomArrayAdapter extends BaseAdapter implements ListAdapter {
private ArrayList <String> list = new ArrayList<String>();
private Context context;
public CustomArrayAdapter(ArrayList <String> list, Context context) {
this.list = list;
this.context = context;
}
#Override
public int getCount() {
return list.size();
}
#Override
public Object getItem(int pos) {
return list.get(pos);
}
#Override
public long getItemId(int pos) {
return 0;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
View view = convertView;
if(view == null) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(R.layout.list_item, null);
}
((TextView) view.findViewById(R.id.list_item)).setText(list.get(position));
Button deleteBtn = (Button) view.findViewById(R.id.delete);
deleteBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
DBHelper db = new DBHelper(context);
db.deleteClass(list.get(position));
list.remove(position);
notifyDataSetChanged();
}
});
return view;
}
}
list_item.xml (The layout of each list view)
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:minHeight="?android:attr/listPreferredItemHeight"
android:gravity="center_vertical"
android:id="#+id/list_item"
android:focusableInTouchMode="false"
android:clickable="false"
android:focusable="false"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/delete"
android:id="#+id/delete"/>
</LinearLayout>
I tried to take help from here: Set onClickListener into custom adapter and here: Where should I place the onClickListener on a Custom ListView?
However, I am still not able to make the adapter work. Any help would be appreciated

set on custom adapter getview function
TextView lst_tv=(TextView)view.findViewById(R.id.list_item);
lst_tv.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
}
});

customArrayAdapter.setOnItemClickListener(...)

Android ListView displays nothing but doesn't crash

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);
}

GridView items are not selectable in Fragment

I have a Fragment in an Activity and I'm trying to display a GridView` from a custom adapter.I'm able to display the GridView but unable to select any item of the gridview.
Can any one help me in identifying the issue.
Please find the code I have used :
//MainActivity
package com.example.frag;
import java.util.ArrayList;
import android.app.Activity;
import android.app.ActionBar;
import android.app.Fragment;
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.widget.GridView;
import android.os.Build;
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (savedInstanceState == null) {
getFragmentManager().beginTransaction()
.add(R.id.container, 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);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
GridView optionsGridView;
ArrayList<InfoItems> items = new ArrayList<InfoItems>();
OptionsAdapter adapter;
String items2[] = {"1","2","3","4"};
public PlaceholderFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container,
false);
// implentation of display of options in GridView
optionsGridView = (GridView) rootView.findViewById(R.id.optionsGrid);
/*items.add(new InfoItems("Passport"));
items.add(new InfoItems("Aadhar"));
items.add(new InfoItems("Pan"));
items.add(new InfoItems("DL"));*/
adapter = new OptionsAdapter(this.getActivity(), items2);
optionsGridView.setAdapter(adapter);
return rootView;
}
}
}
Custom Adapter
package com.example.frag;
import java.util.ArrayList;
import dalvik.bytecode.OpcodeInfo;
import android.app.Activity;
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 OptionsAdapter extends BaseAdapter{
private Context context;
private ArrayList<InfoItems> infoItems;
String items[];
public OptionsAdapter(Context context,ArrayList<InfoItems> items) {
// TODO Auto-generated constructor stub
this.context = context;
this.infoItems = items;
}
public OptionsAdapter(Context contsxt,String txt[]) {
// TODO Auto-generated constructor stub
this.context = contsxt;
this.items = txt;
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return items.length;
}
#Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return infoItems.get(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
if(convertView == null){
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.info_options, null);
}
TextView option = (TextView) convertView.findViewById(R.id.optionsItem);
option.setText(items[position]);
return convertView;
}
}
fragment xml -- layout which will be displayed in the fragment
<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.example.frag.MainActivity$PlaceholderFragment" >
<GridView android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/optionsGrid"
android:horizontalSpacing="5dp"
android:verticalSpacing="5dp"
android:numColumns="2"
android:gravity="center"
android:layout_marginTop="10dp"/>
</RelativeLayout>
item xml -- list item of the custom adapter
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#000"
android:clickable="true">
<TextView android:layout_width="100dp"
android:layout_height="100dp"
android:layout_margin="10dp"
android:gravity="center"
android:textColor="#f000ff"
android:textSize="20sp"
android:textStyle="bold"
android:id="#+id/optionsItem"
android:text="passport"
android:clickable="true"
android:layout_gravity="center"/>
</LinearLayout>

Squonk is correct, you need to call optionsGridView.setAdapter(new OnItemClickListener....). You could also implement OnItemClickListener in your fragment and call optionsGridView.setAdapter(this).

Inside your PlaceholderFragment put this like below :
optionsGridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//do your stuff!
}
});

No view for id for fragment

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().

Unable to get custom spinner in android

I have followed this link to learn about implementing custom spinner. My requirement is just to get drop down menu on clicking a image, it should be like a drop down menu where in i load contents to the list from backend.
But i thought that sample example posted in the above link would work. but its not giving any list on clicking a image icon.
Here is the full source code.
package com.example.testdroid;
import java.util.ArrayList;
import java.util.List;
import android.content.Context;
import android.os.Bundle;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import com.actionbarsherlock.app.ActionBar;
import com.actionbarsherlock.app.SherlockActivity;
import com.actionbarsherlock.internal.widget.IcsSpinner;
import com.actionbarsherlock.view.ActionMode;
import com.actionbarsherlock.view.ActionMode.Callback;
public class MainActivity extends SherlockActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
createCustomActionBar();
}
// #Override
// public boolean onCreateOptionsMenu(Menu menu) {
// // Inflate the menu; this adds items to the action bar if it is present.
// getMenuInflater().inflate(R.menu.activity_main, menu);
// return true;
// }
private void createCustomActionBar()
{
List<String> links = new ArrayList<String>();
links.add("Abc");
links.add("Def");
links.add("Ghi");
LinksAdapter linkAdapter = new LinksAdapter(this, R.layout.externallink, links);
View customNav = LayoutInflater.from(this).inflate(R.layout.custom_show_action_bar, null);
IcsSpinner spinner = (IcsSpinner)customNav.findViewById(R.id.spinner);
spinner.setAdapter(linkAdapter);
ImageView refresh = (ImageView) customNav.findViewById(R.id.refresh);
refresh.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
}
});
ImageView settings = (ImageView) customNav.findViewById(R.id.settings);
settings.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
}
});
getSupportActionBar().setCustomView(customNav, new ActionBar.LayoutParams(Gravity.RIGHT));
getSupportActionBar().setDisplayShowCustomEnabled(true);
}
private static class LinksAdapter extends ArrayAdapter<String> {
private List<String> strings;
private Context context;
private LinksAdapter(Context mainActivity, int textViewResourceId, List<String> objects) {
super(mainActivity, textViewResourceId, objects);
this.strings = objects;
this.context = mainActivity;
}
#Override
public int getCount() {
if (strings == null) return 0;
return strings.size();
}
#Override
public String getItem(int position) {
return super.getItem(position);
}
// return views of drop down items
#Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
final String siteLink = strings.get(position);
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
// at 0 position show only icon
TextView site = (TextView) inflater.inflate(R.layout.externallink, null);
site.setText(siteLink);
site.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
//Intent i = new Intent(Intent.ACTION_VIEW, Uri.parse(siteLink.getUrl()));
//context.startActivity(i);
}
});
return site;
}
// return header view of drop down
#Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
return inflater.inflate(R.layout.custom_show_action_bar, null);
}
}
}
Here is my XML file, i.e layout xml file.
custom_show_action_bar.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="right"
>
<com.actionbarsherlock.internal.widget.IcsSpinner
android:id="#+id/spinner"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingRight="20dp"
android:layout_gravity="center"
/>
<ImageView android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:src="#drawable/ic_launcher"
android:paddingRight="20dp"
android:paddingLeft="10dp"
android:layout_gravity="center"
android:background="#ffffff"
android:id="#+id/refresh"/>
<ImageView android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:src="#drawable/ic_launcher"
android:paddingRight="20dp"
android:background="#ffffff"
android:layout_gravity="center"
android:id="#+id/settings"/>
</LinearLayout>
External_links.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
</LinearLayout>
Guide me where i'm wrong.