Android ListView only Showing One Item

Android ListView only Showing One Item - android

Im trying to create a listview containing all currently installed User Apps.
The problem im facing is that the ListView is Only showing one entry and i cant figure out what im doing wrong.
I use the same code elsewhere (With a JSON Result) and it works fine.
Here is my Activity 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"
android:background="#color/colorPrimary"
tools:context=".AppsList">
<ListView
android:id="#+id/applistview"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_above="#+id/button1"
android:layout_alignParentTop="true" />
<Button
android:id="#+id/button1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:text="Close" />
</RelativeLayout>
My 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"
android:background="#color/colorPrimary" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:background="#color/colorPrimary"
android:layout_centerHorizontal="true"
android:orientation="vertical" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:weightSum="6" >
<ImageView
android:id="#+id/app_icon"
android:layout_width="45dp"
android:layout_height="45dp"
android:layout_weight="1"
android:src="#drawable/frissonhead" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="4"
android:orientation="vertical"
android:weightSum="2">
<TextView
android:id="#+id/app_name"
android:layout_width="258dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center_vertical"
android:text="Soon To Clear"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#color/colorAccent"
android:textSize="20dp"
android:textStyle="bold" />
<TextView
android:id="#+id/app_package"
android:layout_width="258dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center_vertical"
android:text="Soon To Clear"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#color/colorAccent"
android:textSize="12dp" />
</LinearLayout>
<CheckBox
android:id="#+id/app_check"
android:layout_width="25dp"
android:layout_height="match_parent"
android:layout_weight="1.02"
android:checked="false"
android:gravity="center" />
</LinearLayout>
</LinearLayout>
</RelativeLayout>
And my Activity Java
package com.fixmypcscotland.childsafe;
import android.content.SharedPreferences;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.AdapterView;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
public class AppsList extends AppCompatActivity {
SharedPreferences sharedPreferences;
SharedPreferences.Editor editor;
ListView list;
ArrayList<HashMap<String, String>> oslist;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
this.getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
this.getWindow().addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD);
setContentView(R.layout.activity_apps_list);
sharedPreferences = getSharedPreferences("CHILD_MODE", MODE_PRIVATE);
editor = sharedPreferences.edit();
list = (ListView)findViewById(R.id.applistview);
oslist = new ArrayList<HashMap<String, String>>();
final PackageManager pm = getPackageManager();
//get a list of installed apps.
List<ApplicationInfo> packages =
pm.getInstalledApplications(PackageManager.GET_META_DATA);
HashMap<String, String> map = new HashMap<String, String>();
for (ApplicationInfo packageInfo : packages) {
String appkg = packageInfo.packageName;
String apn = pm.getApplicationLabel(packageInfo).toString();
map.put("APPPKG", appkg);
map.put("APPNAME", apn);
}
oslist.add(map);
ListAdapter adapter = new SimpleAdapter(AppsList.this, oslist, R.layout.activity_apps_list_item, new String[]{"APPPKG", "APPNAME"}, new int[]{R.id.app_package, R.id.app_name});
list.setAdapter(adapter);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
editor.putString("bid", oslist.get(+position).get("APPPKG"));
editor.commit();
Toast.makeText(getApplicationContext(), oslist.get(+position).get("APPPKG"), Toast.LENGTH_LONG).show();
}
});
}
}
Any help is appreciated. Its driving me crazy.

Change your List Item with this one.
<?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="wrap_content"
android:paddingBottom="7dp"
android:background="#color/colorPrimary" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:background="#color/colorPrimary"
android:layout_centerHorizontal="true"
android:orientation="vertical" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:weightSum="6" >
<ImageView
android:id="#+id/app_icon"
android:layout_width="45dp"
android:layout_height="45dp"
android:layout_weight="1"
android:src="#drawable/frissonhead" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="4"
android:orientation="vertical"
android:weightSum="2">
<TextView
android:id="#+id/app_name"
android:layout_width="258dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center_vertical"
android:text="Soon To Clear"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#color/colorAccent"
android:textSize="20dp"
android:textStyle="bold" />
<TextView
android:id="#+id/app_package"
android:layout_width="258dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center_vertical"
android:text="Soon To Clear"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#color/colorAccent"
android:textSize="12dp" />
</LinearLayout>
<CheckBox
android:id="#+id/app_check"
android:layout_width="25dp"
android:layout_height="match_parent"
android:layout_weight="1.02"
android:checked="false"
android:gravity="center" />
</LinearLayout>
</LinearLayout>
</RelativeLayout>
And Learn about Adapter click here you may get hint from here.

for (ApplicationInfo packageInfo : packages) {
String appkg = packageInfo.packageName;
String apn = pm.getApplicationLabel(packageInfo).toString();
map.put("APPPKG", appkg);
map.put("APPNAME", apn);
**oslist.add(map);**
}

You are passing the wrong data to your adapter, so you have to change this line:
ListAdapter adapter = new SimpleAdapter(AppsList.this, oslist, R.layout.activity_apps_list_item, oslist, new int[]{R.id.app_package, R.id.app_name});
Also, I must to warn you to see the documentation about the SimpleAdapter to pass the right parameters to it:
The first parameter is a Context where the View associated with this SimpleAdapter is running
The second parameter is a Resource identifier of a view layout that defines the views for this list item. The layout file should include at least those named views defined in "to".
The third is a list of column names that will be added to the Map associated with each item.
And the last one is The views that should display column in the "from" parameter. These should all be TextViews. The first N views in this list are given the values of the first N columns in the from parameter.
And then, fix your for loop:
for (ApplicationInfo packageInfo : packages) {
String appkg = packageInfo.packageName;
String apn = pm.getApplicationLabel(packageInfo).toString();
map.put("APPPKG", appkg);
map.put("APPNAME", apn);
oslist.add(map);
}

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This is what i have :
This is what i want :

You need to use the spinner and that will lead to use an adapter and a couple of layouts.
First in your 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=".MainActivity">
<Spinner
android:id="#+id/sSpinner"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="20dp" />
</RelativeLayout>
then create a new layout under /res/layout folder and just name it anything like custom_spinner_layout.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="wrap_content"
android:orientation="horizontal">
<ImageView
android:id="#+id/myImageView"
android:layout_width="70dp"
android:layout_height="70dp"
android:padding="10dp"
android:src="#drawable/ic_launcher" />
<TextView
android:id="#+id/textView"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:padding="10dp"
android:text="test"
android:textColor="#000" />
</LinearLayout>
then in you MainActivity.java you need to do your code:
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Spinner;
import android.widget.Toast;
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String[] carNames={"Chevy","Dodge","Mazda","Honda","BMW","Toyota"};
int icons[] = {R.drawable.Chevy, R.drawable.Dodge, R.drawable.Mazda, R.drawable.Honda, R.drawable.BMW, R.drawable.Toyota};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Spinner spin = (Spinner) findViewById(R.id.sSpinner);
spin.setOnItemSelectedListener(this);
CustomAdapter customAdapter=new CustomAdapter(getApplicationContext(),icons,carNames);
spin.setAdapter(customAdapter);
}
#Override
public void onItemSelected(AdapterView<?> arg0, View arg1, int position,long id) {
//your code goes here///
Toast.makeText(getApplicationContext(), carNames[position], Toast.LENGTH_LONG).show();
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
// something happens here
}
}
You will need to create a new java class file and name it CustomAdapter.java and thats gonna be extended fro BaseAdapter:
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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 CustomAdapter extends BaseAdapter {
Context context;
int icons[];
String[] carNames;
LayoutInflater inflter;
public CustomAdapter(Context applicationContext, int[] icons, String[] carNames) {
this.context = applicationContext;
this.icons = icons;
this.carNames = carNames;
inflter = (LayoutInflater.from(applicationContext));
}
#Override
public int getCount() {
return icons.length;
}
#Override
public Object getItem(int i) {
return null;
}
#Override
public long getItemId(int i) {
return 0;
}
#Override
public View getView(int i, View view, ViewGroup viewGroup) {
view = inflter.inflate(R.layout.custom_spinner_layout, null);
ImageView icon = (ImageView) view.findViewById(R.id.imageView);
TextView names = (TextView) view.findViewById(R.id.textView);
icon.setImageResource(icons[i]);
names.setText(carNames[i]);
return view;
}
}
you can get the working code in :
https://github.com/edgebasis/spinnerExample

Android spinner does not scroll, why?

I have a spinner in my app where you can select categories and sub categories.
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<?xml version="1.0" encoding="utf-8"?>
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package com.chno.v1;
import android.app.Activity;
import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;
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* List view
*/
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private int groupid;
private Activity context;
private ArrayList<ItemDate> list;
private LayoutInflater inflater;
public SpinnerAdapter(Activity context, int groupid, int id, ArrayList<ItemDate> list) {
super(context,id, list);
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inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
this.groupid = groupid;
}
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View itemView = inflater.inflate(groupid,parent,false);
ImageView imageView = (ImageView)itemView.findViewById(R.id.img);
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return itemView;
}
public View getDropDownView(int position, View convertView, ViewGroup
parent) {
return getView(position,convertView,parent);
}
}
The thing is i can select items from the spinner but i cannot scroll it down for more items.
Here's the code that populates the spinner:
JSONObject result = config.getCategories();
Iterator<String> iter = result.keys();
while (iter.hasNext()) {
String key = iter.next();
try {
JSONObject cat = result.getJSONObject(key);
String category = cat.getString("n");
int drawable = helper.getCategoryDrawable(Integer.parseInt(key));
Log.e("" + category, "" + key);
list.add(new ItemDate("category", category, Integer.parseInt(key), drawable));
JSONObject subs = cat.getJSONObject("l");
Iterator<String> it2 = subs.keys();
while (it2.hasNext()) {
String sub_key = it2.next();
JSONObject sub_category = subs.getJSONObject(sub_key);
String name = sub_category.getString("n");
Log.e("FFROM LIST", "" + name);
list.add(new ItemDate("sub_category", name, Integer.parseInt(sub_key), Integer.parseInt(key), R.drawable.tool_icon_filter));
}
} catch (JSONException e) {
Log.e("JSONException", e.getMessage());
e.printStackTrace();
}
}
Spinner sp=(Spinner)findViewById(R.id.spinner1);
SpinnerAdapter adapter=new SpinnerAdapter((Activity) context, R.layout.sub_select_item, R.id.txt, list);
sp.setAdapter(adapter);
sp.setFocusable(true);
sp.setFocusableInTouchMode(true);
How can i solve this? Thanks.

code adds one item to listview and then stops

I have the following code that is a dynamic listview where you type in the textbox and click the add button and its added to the listview below. Listview is a custom listview with 2 textviews. Somehow the code adds the first item and then does not add the rest. The arraylist gets the item, i call adapter.notifyDataSetChanged(); and yet still the listview does not get updated. What am i doing wrong?
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;
public class ManageComplaintsActivity extends DashboardActivity {
EditText txtAddComplaint;
ListView lvComplaintsList;
Button btnAddComplaint;
private SimpleAdapter adapter;
private int count = 1;
private ArrayList<Map<String, String>> list = new ArrayList<Map<String, String>>();;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_manage_complaints);
setTitleFromActivityLabel (R.id.title_text);
txtAddComplaint= (EditText) findViewById(R.id.txtAddComplaint);
lvComplaintsList= (ListView) findViewById(R.id.lvComplaintsList);
btnAddComplaint = (Button)findViewById(R.id.btnAddComplaint);
String[] from = { "complaint", "complaintid" };
int[] to = { R.id.lblC, R.id.lblCID };
adapter = new SimpleAdapter (this, list, R.layout.activity_manage_complaints_row, from, to);
lvComplaintsList.setAdapter(adapter);
btnAddComplaint.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
HashMap<String, String> item = new HashMap<String, String>();
item.put("complaint", txtAddComplaint.getText().toString());
item.put("complaintid", Integer.toString(count));
list.add(item);
adapter.notifyDataSetChanged();
count++;
txtAddComplaint.setText("");
Toast.makeText(getApplicationContext(),Integer.toString(list.size()), Toast.LENGTH_SHORT).show();
}
});
lvComplaintsList.setOnItemClickListener(new OnItemClickListener(){
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Toast.makeText(getApplicationContext(),
((TextView)view.findViewById(R.id.lblC)).getText(), Toast.LENGTH_SHORT).show();
}
});
}
}
This is the 2 xml files
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<ScrollView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:scrollbars="vertical" >
<TableLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="10dip"
android:shrinkColumns="1"
android:stretchColumns="1" >
<TableRow
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<EditText
android:id="#+id/txtAddComplaint"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="3" />
<Button
android:id="#+id/btnAddComplaint"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Add" />
</TableRow>
<TableRow
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="#+id/txtComplaintLabel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="List of Complaints : "
android:textAppearance="?android:attr/textAppearanceLarge"
android:paddingBottom="20dp"/>
</TableRow>
<TableRow
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<ListView
android:id="#+id/lvComplaintsList"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_span="2" />
</TableRow>
</TableLayout>
</ScrollView>
</LinearLayout>
This is the listviewrow 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/lblC"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
/>
<TextView
android:id="#+id/lblCID"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
/>
</RelativeLayout>

As you can see in documentation to SimppleAdapter it is
An easy adapter to map static data to views defined in an XML file.
I believe that you can find any tricky way to add data dynamically. But I'm not sure that you have to do it like this. Try to use ArrayAdapter instead. By default it binds T.toString() values to single TextView, but you can override getView(int, View, ViewGroup) to return the type of view you want.

I changed the main xml file as follows
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:id="#+id/LinearLayout01"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:id="#+id/LinearLayout02"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<EditText
android:id="#+id/txtAddComplaint"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" >
</EditText>
<Button
android:id="#+id/btnAddComplaint"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Add to Listview" >
</Button>
</LinearLayout>
<ListView
android:id="#+id/lvComplaintsList"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
I had used a table layout and the listview was in one of the rows.
Hope this helps someone .

Not able to customize ListView

I'm working on developing a simple todo list app with a custom ListView. I want to be able to change the colors (such as white text rather then black on the text view) and perhaps add a checkbox for each item in the ListView.
When using a default list view I need to use the layout.xml id '#android:id/list', however, to customize the view, I am using the id '#+id/task_list'. When I do this I receive the error:
"your content must have a listview whose id attribute is 'android.r.id.list'"
What should I do? And insight will be appreciated.
Below is the code that I am using.
MainActivity.java
package com.example.todo;
import java.util.ArrayList;
import android.app.ListActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.TextView;
public class MainActivity extends ListActivity {
ArrayList<TextView> listItems=new ArrayList<TextView>();
ArrayAdapter<TextView> adapter;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
adapter=new ArrayAdapter<TextView>(this,
R.layout.task_row_item,
listItems);
setListAdapter(adapter);
}
public void addItems(View view) {
EditText newItem = (EditText) findViewById(R.id.textField);
TextView listItem = (TextView) findViewById(R.id.task_description);
listItems.add(listItem);
adapter.notifyDataSetChanged();
newItem.setText("");
}
}
activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:background="#color/black"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
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" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<EditText
android:id="#+id/textField"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ems="10"
android:hint="Enter a task..."
android:inputType="text" >
<requestFocus />
</EditText>
<Button
android:id="#+id/addItems"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:onClick="addItems"
android:text="Add" />
</LinearLayout>
<ListView
android:id="#+id/task_list"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
task_row_item.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin"
android:orientation="horizontal" >
<TextView
android:id="#+id/task_description"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:layout_weight="1"
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>

Either stop using ListActivity or replace
<ListView
android:id="#+id/task_list"
with
<ListView
android:id="#android:id/list"
Get familiar with: http://developer.android.com/reference/android/app/ListActivity.html

Your content must have a ListView whose id attribute is android.R.id.list [duplicate]

This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
runtime exception ListView whose id attribute is ‘android.R.id.list’
I am new to android I get the following runtime error.
"Your content must have a ListView whose id attribute is android.R.id.list"
I was trying following tutorial
http://www.mkyong.com/android/android-listview-example/
"Custom ArrayAdapter example"
when I run their code it works fine and they use android 2.3.3
I use 4.0
I changed their code according to my requriment and got above runtime error in logcat.
here is my code.
import android.app.ListActivity;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.os.Bundle;
import android.view.View;
import android.widget.ListView;
import android.widget.Toast;
import com.xxxx.xxx.adapter.ListArrayAdapter;
public class Page5SubActivity extends ListActivity {
static final String[] MOBILE_OS = new String[] { "Android", "iOS",
"WindowsMobile", "Blackberry", "test", "test2" };
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.page5sub);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
Intent intent = getIntent();
int val = intent.getIntExtra("id", 0);
switch (val) {
case 2:
setListAdapter(new ListArrayAdapter(this, MOBILE_OS));
break;
case 3:
break;
case 4:
break;
}
}
#Override
protected void onListItemClick(ListView l, View v, int position, long id) {
// get selected items
String selectedValue = (String) getListAdapter().getItem(position);
Toast.makeText(this, selectedValue, Toast.LENGTH_SHORT).show();
}
public void onClickBtn(View v) {
switch (v.getId()) {
case R.id.back_arrow:
Intent intent2 = new Intent(Page5SubActivity.this,
Page5Activity.class);
// intent2.putExtra("id", 2);
startActivity(intent2);
break;
}
}
}
Here is the code of xml file
<?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:background="#drawable/page1background"
android:gravity="center" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_centerInParent="false"
android:layout_marginBottom="#dimen/padding_Xlarge"
android:layout_marginTop="#dimen/padding_large"
android:paddingTop="#dimen/padding_large"
android:text="#string/text"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#color/textbody" />
<LinearLayout
android:id="#+id/linearLayout1"
android:layout_width="wrap_content"
android:layout_height="100dp"
android:layout_below="#id/textView1"
android:layout_centerHorizontal="true"
android:orientation="horizontal" >
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/text" />
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayout2"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_below="#id/linearLayout1"
android:weightSum="10" >
<View
android:id="#+id/view1"
android:layout_width="0dip"
android:layout_height="30dp"
android:layout_marginBottom="35dp"
android:layout_weight="1" />
<ImageView
android:id="#+id/logo"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_marginLeft="5dp"
android:layout_marginRight="20dp"
android:layout_marginTop="5dp"
android:contentDescription="#string/Description" >
</ImageView>
<TextView
android:id="#+id/label"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#+id/label" >
</TextView>
<View
android:id="#+id/view2"
android:layout_width="0dip"
android:layout_height="30dp"
android:layout_marginBottom="35dp"
android:layout_weight="1" />
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayout3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:weightSum="10" >
<View
android:id="#+id/view3"
android:layout_width="0dip"
android:layout_height="30dp"
android:layout_marginBottom="35dp"
android:layout_weight="4.5" />
<ImageButton
android:id="#+id/back_arrow"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="35dp"
android:layout_weight="1"
android:background="#drawable/backbut"
android:contentDescription="#string/Description"
android:onClick="onClickBtn"
android:src="#drawable/backarrowpress" />
<View
android:id="#+id/view4"
android:layout_width="0dip"
android:layout_height="30dp"
android:layout_marginBottom="35dp"
android:layout_weight="4.5" />
</LinearLayout>
</RelativeLayout>
in their example they dont use listview widget in xml file but mention in the log cat.
apartfrom that it says unable to start activity compnonetinfo.
where do I have done wrong?
plz help me to correct this.
Here is the original code of the xml file.
here is the source of original code
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="5dp" >
<ImageView
android:id="#+id/logo"
android:layout_width="50px"
android:layout_height="50px"
android:layout_marginLeft="5px"
android:layout_marginRight="20px"
android:layout_marginTop="5px"
android:src="#drawable/windowsmobile_logo" >
</ImageView>
<TextView
android:id="#+id/label"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#+id/label"
android:textSize="30px" >
</TextView>
</LinearLayout>
I notice they dont have use listview widget in their xml file but works this example.

Your solution in your error
"Your content must have a ListView whose id attribute is android.R.id.list"
If your are using ListActivity then you must have ListView in your xml of layout and must be id of ListView is android.R.id.list
So must add listview in your layout like below code
<ListView
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:id="#+id/android:list" />

when you extend ListActivity then your xml layout file must have ListView whose id is android.R.id.list
so put listview in xml layout file and android:id="#+id/android.R.id.list"

in your layout xml file you must set id of you ListView to #android:id/list

set your Listview id like this
android:id="#id/android:list"

set adapter like this.
Adapter = new Adapter<String>(this,android.R.layout.simple_list_item_1, list);
or check XML
<ListView
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:id="#+id/android:list" />

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

Android ListView only Showing One Item - android

for (ApplicationInfo packageInfo : packages) { String appkg = packageInfo.packageName; String apn = pm.getApplicationLabel(packageInfo).toString(); map.put("APPPKG", appkg); map.put("APPNAME", apn); oslist.add(map); }

Related

How to create a Vertical Dropdown with Menu with Gridview?

Android spinner does not scroll, why?

code adds one item to listview and then stops

Not able to customize ListView

Your content must have a ListView whose id attribute is android.R.id.list [duplicate]

Categories

Resources

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

Android ListView only Showing One Item - android

for (ApplicationInfo packageInfo : packages) { String appkg = packageInfo.packageName; String apn = pm.getApplicationLabel(packageInfo).toString(); map.put("APPPKG", appkg); map.put("APPNAME", apn); **oslist.add(map);** }

Related

How to create a Vertical Dropdown with Menu with Gridview?

Android spinner does not scroll, why?

code adds one item to listview and then stops

Not able to customize ListView

Your content must have a ListView whose id attribute is android.R.id.list [duplicate]

Categories

Resources

for (ApplicationInfo packageInfo : packages) { String appkg = packageInfo.packageName; String apn = pm.getApplicationLabel(packageInfo).toString(); map.put("APPPKG", appkg); map.put("APPNAME", apn); oslist.add(map); }