Android Single page calendarview

Android Single page calendarview - android

I am trying to develop a calendar application which displays all the months in a year in a single activity .I am having troubles with it . This is the view that i want to make . I am so lost :/
ListViewAdapter:
package com.example.calendar15;
import android.content.Context;
import android.graphics.Color;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebView.FindListener;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;
public class CalendarListAdapter extends BaseAdapter {
private Context mContext;
String[] months;
public String[] numbers;
// Constructor
public CalendarListAdapter(Context c,String[] months) {
mContext = c;
this.months=months;
}
public int getCount() {
return months.length;
}
public Object getItem(int position) {
return null;
}
public long getItemId(int position) {
return 0;
}
// create a new ImageView for each item referenced by the Adapter
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
LayoutInflater inflater = (LayoutInflater) mContext
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.grid, parent, false);
}
// Lookup view for data population
TextView tvTitle = (TextView) convertView.findViewById(R.id.date);
Log.d("months[position]",""+months[position]);
tvTitle.setText(months[position]);
/**/
String[] numbers = { "1", "2", "3", "4", "5", "6", "7","8","9","10","11","12"};
/*TextView tvDate1 = (TextView) convertView.findViewById(R.id.text1);
Log.d("numbers[position]",""+numbers[position]);
tvDate1.setText(numbers[position]);*/
GridView gridview = (GridView)convertView.findViewById(R.id.gridview);
CalendarGridAdapter calendarGridAdapter = new CalendarGridAdapter(mContext, numbers);
gridview.setAdapter(calendarGridAdapter);
return convertView;
}
}
GridViewAdapter:
package com.example.calendar15;
import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
public class CalendarGridAdapter extends BaseAdapter {
Context mContext;
String[] number;
CalendarGridAdapter(Context context, String[] numbers) {
this.mContext = context;
this.number = numbers;
Log.d("number.length",""+number.length);
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return number.length;
}
#Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return number[position];
}
#Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
LayoutInflater inflater = (LayoutInflater) mContext
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.calendar_item, parent, false);
}
// Lookup view for data population
TextView tvTitle = (TextView) convertView.findViewById(R.id.date);
Log.d("number[position]",""+number[position]);
tvTitle.setText(number[position]);
return convertView;
}
}
Grid.xml
<?xml version="1.0" encoding="utf-8"?>
<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="#+id/date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#727272"
android:textSize="16sp"
android:gravity="center"
android:text="date"
android:textStyle="normal" />
<GridView
android:id="#+id/gridview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:listSelector="#android:color/transparent"
android:numColumns="7"
android:stretchMode="columnWidth" />
</GridLayout>
calendar_item.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/Datelayer"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#fff"
android:gravity="center"
android:orientation="vertical"
android:padding="2dip" >
<TextView
android:id="#+id/date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:text="date"
android:textColor="#727272"
android:textSize="16sp"
android:textStyle="normal" >
</TextView>
</LinearLayout>

Solution
I changed the height of Gridview from wrap_content and set it about 200dp - the height of elements to be inflated multiplied by total no of rows. (you could set it dynamically or in the xml as per your requirements ). I hope this helps others as well

Related

Android runtime eror: the app suddenly stops

My app is to perform ListView. When it was running, the error message notified that "Unfortunately, App has stopped". Here is my code.
package com.example.admin.customadapter;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ListView;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
ListView listView;
ArrayList<Nation>nationifo;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listView = (ListView)findViewById(R.id.ListViewNation);
nationifo = new ArrayList<>();
nationifo.add(new Nation("VietNam",1945));
nationifo.add(new Nation("Malaysia",1975));
nationifo.add(new Nation("Laos",1943));
NationAdapter adp = new NationAdapter(
MainActivity.this,
R.layout.nation_list,
nationifo
);
listView.setAdapter(adp);
}
}
Nation.java
package com.example.admin.customadapter;
public class Nation {
public String name;
public Integer year;
public Nation(String Name, Integer Year){
Name = name;
Year = year;
}
}
NationAdapter.java
package com.example.admin.customadapter;
import android.annotation.SuppressLint;
import android.content.Context;
import android.text.Layout;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
import java.util.List;
public class NationAdapter extends BaseAdapter {
Context mycontext;
int mylayout;
List<Nation>arrayNation;
public NationAdapter (Context context, int layout, List<Nation>nationList){
mycontext = context;
mylayout = layout;
arrayNation = nationList;
}
public int getCount() {
return arrayNation.size();
}
#Override
public Object getItem(int position) {
return null;
}
#Override
public long getItemId(int position) {
return 0;
}
#SuppressLint("ViewHolder")
#Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) mycontext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(mylayout,null);
TextView txtv1 = (TextView) convertView.findViewById(R.id.textView);
txtv1.setText(arrayNation.get(position).name);
TextView txtv2 =(TextView) convertView.findViewById(R.id.textView2);
txtv2.setText(String.valueOf(arrayNation.get(position).year));
return convertView;
}
}
nation_list.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:background = "#ffffff">
<TextView
android:textColor="#ff0400"
android:text="TextView"
android:layout_width="match_parent"
android:layout_height="30dp"
android:id="#+id/textView" />
<TextView
android:textColor="#0022ff"
android:text="TextView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/textView2" />
</LinearLayout>
My Android Studio is 2.2. But I don't think that this version is diferrent to another.

try to use the following
convertView = inflater.inflate(mylayout,parent,false);
instead of
convertView = inflater.inflate(mylayout,null);

Android: ListView not working properly after scroll

Hi I'm trying to show text, image alternatively in list view. To load the content into my list view i had three scenarios.
1. Some times i'm getting only the text from json. So, in this case i have to hide the ImageView
2. Some cases i'm getting only the image url from json. So, in this case i have to hide the TextView
3. In other case i'm getting both image url and text from json, so, in this case i don't have to hide anything
By following these scenarios i'm loading all the content correctly at first time but when i'm scrolling top to bottom and bottom to up. All the image views are filled with images (But there is no image url for that particular position)
My adapter code is
package com.app.listviewitemid.adapter;
import java.util.ArrayList;
import com.app.listviewitemid.R;
import com.app.listviewitemid.model.Items;
import com.bumptech.glide.Glide;
import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
public class ItemsAdapter extends ArrayAdapter<Items>{
ArrayList<Items> itemsArrayList;
int Resource;
LayoutInflater inflater;
Context context;
ViewHolder holder;
Button btnCheck;
Items globPosition;
public ItemsAdapter(Context context, int resource, ArrayList<Items> objects){
super(context, resource, objects);
this.context = context;
this.Resource = resource;
this.itemsArrayList = objects;
inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
if(v == null){
v = inflater.inflate(Resource, null);
holder = new ViewHolder();
holder.tvPostID = (TextView) v.findViewById(R.id.tv_post_id);
holder.tvPostText = (TextView) v.findViewById(R.id.tv_post_text);
holder.ivPostImage = (ImageView) v.findViewById(R.id.iv_post_img);
btnCheck = (Button) v.findViewById(R.id.btn_check);
v.setTag(holder);
}else{
holder = (ViewHolder) v.getTag();
}
globPosition = itemsArrayList.get(position);
holder.tvPostID.setText(itemsArrayList.get(position).getPostID());
if(globPosition.getPostText().equals(null) || globPosition.getPostText().equals("")){
}else {
holder.tvPostText.setText(globPosition.getPostText());
}
if(globPosition.getPostImage().equals(null) || globPosition.getPostImage().equals("")){
}else {
Glide.with(context).load(globPosition.getPostImage()).placeholder(R.drawable.loading_img).error(R.drawable.bg_480_800).into(holder.ivPostImage);
}
btnCheck.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
Log.e("PostID", globPosition.getPostID());
}
});
return v;
}
static class ViewHolder{
TextView tvPostID;
TextView tvPostText;
ImageView ivPostImage;
}
}
adapter layout
<?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:id="#+id/tv_post_id"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/post_id"
android:textColor="#000000"
android:textSize="12sp" />
<TextView
android:id="#+id/tv_post_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:textSize="12sp" />
<ImageView
android:id="#+id/iv_post_img"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="#string/empty" />
<Button
android:id="#+id/btn_check"
android:layout_width="match_parent"
android:layout_height="35dp"
android:background="#000000"
android:text="#string/check"
android:textColor="#FFFFFF" />
</LinearLayout>
How to get rid of this?

if(globPosition.getPostText().equals(null) || globPosition.getPostText().equals("")){
holder.tvPostText.setVisibility(View.GONE);
}else {
holder.ivPostImage.setVisibility(View.GONE);
holder.tvPostText.setVisibility(View.VISIBLE);
holder.tvPostText.setText(globPosition.getPostText());
}
if(globPosition.getPostImage().equals(null) || globPosition.getPostImage().equals("")){
holder.ivPostImage.setVisibility(View.GONE);
}else {
holder.ivPostImage.setVisibility(View.GONE);
holder.tvPostText.setVisibility(View.VISIBLE);
Glide.with(context).load(globPosition.getPostImage()).placeholder(R.drawable.loading_img).error(R.drawable.bg_480_800).into(holder.ivPostImage);
}

I got the idea from ankit aggarwal answer (his code is not working properly but he gave me the basic idea). And one more thing, previously i didn't get the correct position, so i changed the adapter code little bit
Code
package com.app.listviewitemid.adapter;
import java.util.List;
import com.app.listviewitemid.R;
import com.app.listviewitemid.model.Items;
import com.bumptech.glide.Glide;
import android.annotation.SuppressLint;
import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
public class ItemsAdapter extends BaseAdapter{
List<Items> itemsArrayList;
int Resource;
LayoutInflater inflater;
Context context;
Button btnCheck;
public ItemsAdapter(Context context, List<Items> items) {
this.context = context;
this.itemsArrayList = items;
}
#Override
public int getCount() {
return itemsArrayList.size();
}
#Override
public Object getItem(int location) {
return itemsArrayList.get(location);
}
#Override
public long getItemId(int position) {
return position;
}
#SuppressLint("InflateParams") #Override
public View getView(int position, View convertView, ViewGroup parent) {
if (inflater == null)
inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null)
convertView = inflater.inflate(R.layout.adapter_layout, null);
TextView tvPostID = (TextView) convertView.findViewById(R.id.tv_post_id);
TextView tvPostText = (TextView) convertView.findViewById(R.id.tv_post_text);
ImageView ivPostImage = (ImageView) convertView.findViewById(R.id.iv_post_img);
btnCheck = (Button) convertView.findViewById(R.id.btn_check);
final Items items = itemsArrayList.get(position);
tvPostID.setText(items.getPostID());
if(items.getPostText().equals(null) || items.getPostText().equals("")){
tvPostText.setVisibility(View.GONE);
}else {
//ivPostImage.setVisibility(View.GONE);
if(items.getPostImage().equals(null) || items.getPostImage().equals("")){
ivPostImage.setVisibility(View.GONE);
}else {
ivPostImage.setVisibility(View.VISIBLE);
tvPostText.setVisibility(View.GONE);
Glide.with(context).load(items.getPostImage()).placeholder(R.drawable.loading_img).error(R.drawable.bg_480_800).into(ivPostImage);
}
tvPostText.setVisibility(View.VISIBLE);
tvPostText.setText(items.getPostText());
}
if(items.getPostImage().equals(null) || items.getPostImage().equals("")){
ivPostImage.setVisibility(View.GONE);
}else {
ivPostImage.setVisibility(View.VISIBLE);
//tvPostText.setVisibility(View.GONE);
if(items.getPostText().equals(null) || items.getPostText().equals("")){
tvPostText.setVisibility(View.GONE);
}else {
tvPostText.setVisibility(View.VISIBLE);
tvPostText.setText(items.getPostText());
}
Glide.with(context).load(items.getPostImage()).placeholder(R.drawable.loading_img).error(R.drawable.bg_480_800).into(ivPostImage);
}
btnCheck.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
Log.e("PostID", items.getPostID());
}
});
return convertView;
}
}
Thanks to ankit aggarwal

Imageview getting automatically changed on scroll listview

I am new to android and facing one very comman problem of listview i googled alot but did'nt found anything usefull for my case.Hope you people show me the right direction.Whenever I am changing my image from "plus" to "tick" on click my last item image also got automatically changed on scroll.
My list_comapare_product 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:background="#color/white_color"
android:orientation="vertical" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="100dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:background="#color/white_color"
android:gravity="center_vertical" >
<ImageView
android:id="#+id/img_product"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:src="#drawable/crane" />
<com.mss.skyjack.custom.views.SkyjackCustomTextview
android:id="#+id/tv_product_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:gravity="center"
android:text="test"
android:textAppearance="?android:attr/textAppearanceMedium" />
<ImageView
android:id="#+id/img_plus"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:src="#drawable/plus" />
</RelativeLayout>
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:background="#color/black_color" />
</LinearLayout>
Here is my Adapter :-
import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
public class ComapreProductSelectionAdapter extends BaseAdapter {
Activity activity;
List<SelectorTest> listSelector;
private LayoutInflater mLayoutInflater;
public ComapreProductSelectionAdapter(Activity activity,
List<SelectorTest> listSelector) {
this.activity = activity;
this.listSelector = listSelector;
mLayoutInflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
#Override
public int getCount() {
return listSelector.size();
}
#Override
public SelectorTest getItem(int position) {
return listSelector.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
final ViewHolder viewHolder;
final int i = position;
final SelectorTest listItem = listSelector.get(position);
if (convertView == null) {
convertView = mLayoutInflater.inflate(
R.layout.list_comapare_product, parent, false);
viewHolder = new ViewHolder();
viewHolder.tvProductName = (TextView) convertView
.findViewById(R.id.tv_product_name);
viewHolder.imgProduct = (ImageView) convertView
.findViewById(R.id.img_product);
viewHolder.imgadd = (ImageView) convertView
.findViewById(R.id.img_plus);
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
}
viewHolder.imgadd.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if (viewHolder.imgadd.getDrawable().getConstantState() == activity
.getResources().getDrawable(R.drawable.plus)
.getConstantState()) {
viewHolder.imgadd.setImageResource(R.drawable.tick);
} else {
viewHolder.imgadd.setImageResource(R.drawable.plus);
}
}
});
return convertView;
}
static class ViewHolder {
TextView tvProductName;
ImageView imgProduct, imgadd;
View viewRightLine;
}
}
Thanks.

You need to keep track of which items have been "ticked". I copied your adapter and made necessary changes. You can just copy-paste the code and it should work.
import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
public class ComapreProductSelectionAdapter extends BaseAdapter {
Activity activity;
List<SelectorTest> listSelector;
private LayoutInflater mLayoutInflater;
private ArrayList<Integer> tickedItems = new ArrayList<Integer>();
public ComapreProductSelectionAdapter(Activity activity,
List<SelectorTest> listSelector) {
this.activity = activity;
this.listSelector = listSelector;
mLayoutInflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
#Override
public int getCount() {
return listSelector.size();
}
#Override
public SelectorTest getItem(int position) {
return listSelector.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
final ViewHolder viewHolder;
final int i = position;
final SelectorTest listItem = listSelector.get(position);
if (convertView == null) {
convertView = mLayoutInflater.inflate(
R.layout.list_comapare_product, parent, false);
viewHolder = new ViewHolder();
viewHolder.tvProductName = (TextView) convertView
.findViewById(R.id.tv_product_name);
viewHolder.imgProduct = (ImageView) convertView
.findViewById(R.id.img_product);
viewHolder.imgadd = (ImageView) convertView
.findViewById(R.id.img_plus);
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
}
viewHolder.imgadd.setTag(position);
viewHolder.imgadd.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if(tickedItems.contains((Integer)v.getTag()) {
//Already ticked, set to plus
viewHolder.imgadd.setImageDrawable(activity.getResources().getDrawable(R.drawable.plus));
tickedItems.remove((Integer)v.getTag());
} else {
tickedItems.add((Integer)v.getTag());
viewHolder.imgadd.setImageDrawable(activity.getResources().getDrawable(R.drawable.tick));
}
}
});
if(tickedItems.contains(position))
viewHolder.imgadd.setImageDrawable(activity.getResources().getDrawable(R.drawable.tick));
else
viewHolder.imgadd.setImageDrawable(activity.getResources().getDrawable(R.drawable.plus));
return convertView;
}
static class ViewHolder {
TextView tvProductName;
ImageView imgProduct, imgadd;
View viewRightLine;
}
}
As an extra, don't use ImageView.setImageResource() as it is inefficient.
Quote from Android docs about ImageView.setImageReource()
This does Bitmap reading and decoding on the UI thread, which can cause a latency hiccup. If that's a concern, consider using setImageDrawable(android.graphics.drawable.Drawable) or setImageBitmap(android.graphics.Bitmap) and BitmapFactory instead.

Android: Adding a Button in a listview

I'm trying to add a button in a list View, I searched a lot on google but nothing was good enough for me.
Here's my code: I have 2 classes :
Menu.java
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Toast;
public class Menu extends ListActivity implements OnItemClickListener {
String[] listaMeniu = { "1", "2", "3"};
Button butonNota;
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setListAdapter(new ListAdapter(this, listaMeniu));
ListView listView = getListView();
listView.setOnItemClickListener (this);
Button btnLoadMore = new Button(this);
btnLoadMore.setText("show me");
}
}
Menu.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="5dp">
<ImageView
android:id="#+id/1"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_marginLeft="5dp"
android:layout_marginRight="20dp"
android:layout_marginTop="5dp"
android:src="#drawable/1" />
<TextView
android:id="#+id/text1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize = "30dp"
android:text="1" />
</LinearLayout>
ListAdapter.java
package com.example.a;
import android.content.Context;
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 ListAdapter extends ArrayAdapter {
private Context context;
private String[] values;
public ListAdapter(Context context, String[] values) {
// TODO Auto-generated constructor stub
super (context, R.layout.menu, values);
this.context = context;
this.values = values;
}
}
I already made the list view, but I don't know how to add the button above the list. I tried to add it in menu.xml but it's shows up a button for every item in the list. Hope you guys understand what I want.
Thank you!

The best way is to create your custom adapter. For example :
import android.content.Context;
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 android.widget.Button;
public class MySimpleArrayAdapter extends ArrayAdapter<String> {
private final Context context;
private final String[] values;
public MySimpleArrayAdapter(Context context, String[] values) {
super(context, R.layout.rowlayout, values);
this.context = context;
this.values = values;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View rowView = inflater.inflate(R.layout.rowlayout, parent, false);
TextView textView = (TextView) rowView.findViewById(R.id.label);
Button buttonView = (Button) rowView.findViewById(R.id.button);
buttonView.setText(values[position]);
return rowView;
}
}
And here is the xml from "rowlayout.xml". You have to put the layout file in the res/layout project folder.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<Button
android:id="#+id/button"
android:layout_width="22px"
android:layout_height="22px"
android:layout_marginLeft="4px"
android:layout_marginRight="10px"
android:layout_marginTop="4px">
</Button>
<TextView
android:id="#+id/label"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#+id/label"
android:textSize="20px" >
</TextView>
</LinearLayout>
And then just update your Menu.java
public class Menu extends ListActivity implements OnItemClickListener {
String[] listaMeniu = { "1", "2", "3"};
Button butonNota;
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setListAdapter(new MySimpleArrayAdapter(this, listaMeniu));
...
}
}

You need to override method getView in your adapter to return Button.

It appears that you want your 10th item in the list to be a button.
That means that when you overwrite your ArrayAdapter class, you need to modify GetView() so it returns the button instead of a picture. Create two different layout XML files, rowlayout_picture.xml and rowlayout_button.xml, and then:
public View getView(int position, View convertView, ViewGroup parent)
{
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View rowView = null;
if (position < 10)
rowView = inflater.inflate(R.layout.rowlayout_picture, parent, false);
else
rowView = inflater.inflate(R.layout.rowlayout_button, parent, false);
return rowView;
}

need help for on click listener for android custom ListView

my app has custom ListView, each row contains checkbox ,edit text and 2 buttons. In the main xml layout file i have 1 submit button and listView. i want that, when i click on submit button, i should get all checked row position.I am new to android programming ,so plz help me my code is not working here is my code:
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button android:layout_height="wrap_content"
android:text="#string/button_submit"
android:layout_width="wrap_content"
android:id="#+id/main_submit_button" android:onClick="#string/button_submit"></Button>
<ListView
android:id="#+id/list_view"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
</LinearLayout>
items.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout android:layout_height="wrap_content"
android:layout_width="fill_parent">
<TextView
android:layout_height="wrap_content"
android:layout_width="fill_parent" android:layout_weight="1"
android:id="#+id/items_name"
android:gravity="left"
android:textStyle="bold" />
<CheckBox android:id="#+id/items_check"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="right"
/>
</LinearLayout>
<LinearLayout android:layout_height="wrap_content"
android:layout_width="fill_parent">
<Button android:id="#+id/items_add_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="left"
android:text="#string/text_switcher_plus" />
<EditText android:digits="10"
android:textStyle="bold" android:gravity="left"
android:id="#+id/items_plates" android:layout_height="wrap_content"
android:layout_width="90dp"></EditText>
<Button android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:id="#+id/items_minus_button"
android:text="#string/text_switcher_minus"
android:gravity="right"
/>
</LinearLayout>
</LinearLayout>
VegmenuActivity
package com.sagar.resmenu;
import java.util.ArrayList;
import java.util.Arrays;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.util.SparseBooleanArray;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Button;
import android.widget.ListView;
// reference:http://pareshnmayani.wordpress.com/tag/android-custom-listview-example
public class VegmenuActivity extends Activity implements OnItemClickListener{
//dynamic array that contains names of items
private ArrayList<String> items = new ArrayList<String>
(Arrays.asList("Veg pulav", "Pav bhaji", "Panir tikka", "veg kolhapuri",
"Coconut Rice", "Curd rice", "Mint Pulao",
"Banana Custard","Basundi", "Cheese potato Tikkis",
"Dum aloo"));
private ArrayList<Integer> counter = new ArrayList<Integer>
(Arrays.asList(0, 0,0, 0, 0,0, 0,0, 0,0,0));
private SparseBooleanArray a;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final ListView lv =(ListView)findViewById(R.id.list_view);
// lv.setOnClickListener(null);
MyAdapter adapter = new MyAdapter(getApplicationContext(),items,counter);
lv.setAdapter(adapter);
lv.setItemsCanFocus(false);
lv.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
Button submit1;
submit1 = (Button)findViewById(R.id.main_submit_button);
submit1.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
a = new SparseBooleanArray();
a.clear();
a = lv.getCheckedItemPositions();
int len = items.size();
for (int i = 0; i < len; i++)
{
if(a.valueAt(i) == true)
Log.d("Returned ", String.valueOf(a.valueAt(i)));
}
}
});
}
//private OnItemClickListener selectCat = new OnItemClickListener();
public void onItemClick(AdapterView<?> a, View v, int positon, long id) {
// TODO Auto-generated method stub
}
}
MyAdapter.java
package com.sagar.resmenu;
import java.util.ArrayList;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.TextSwitcher;
import android.widget.TextView;
public class MyAdapter extends BaseAdapter implements OnClickListener{
private LayoutInflater inflater;
private ArrayList<String> data;
VegmenuActivity m;
private ArrayList<Integer> counter;
public MyAdapter(Context context, ArrayList<String> data,ArrayList<Integer> counter) {
// TODO Auto-generated constructor stub
super();
// Caches the LayoutInflater for quicker use
this.inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
// Sets the events data
this.data= data;
this.counter=counter;
}
public int getCount() {
return this.data.size();
//return this.counter.size();
}
public String getItem(int position) throws IndexOutOfBoundsException{
return null;
}
public long getItemId(int position) throws IndexOutOfBoundsException{
return 0;
}
public int getViewTypeCount(){
return 1;
}
public static class ViewHolder
{
TextView items_name;
CheckBox items_check ;
Button items_plus_button;
Button items_minus_button;
EditText plates;
}
public View getView(int position, View convertView, ViewGroup parent){
//String myText = getItem(position);
ViewHolder holder;
if(convertView == null){ // If the View is not cached
// Inflates the Common View from XML file
holder = new ViewHolder();
convertView = this.inflater.inflate(R.layout.items,parent,false);
holder.items_name = (TextView) convertView.findViewById(R.id.items_name);
holder.plates = (EditText) convertView.findViewById(R.id.items_plates);
holder.items_check = (CheckBox) convertView.findViewById(R.id.items_check);
convertView.setTag(holder);
}
else
holder=(ViewHolder)convertView.getTag();
holder.items_name.setText(data.get(position));
holder.plates.setText(String.valueOf(counter.get(position)));
return convertView;
}
#Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
}
}

when I need check boxes inside listview, I often code as following:
MyAdapter.java:
- Declare an boolean array to mark which item is checked/unchecked:
....
boolean[] checked;
...
inside constructor:
checked = new boolean[data.size()];
- Inside getView()
{
.....
holder.items_check.setChecked(checked[position]);
holder.items_check.setOnCheckedChangeListener(new OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
checked[position] = isChecked;
}
});
.....
- And method to get all checked items:
boolean[] getCheckedItems() {
return checked;
}
That's !

Could it be that your getItem and getItemId only return null and 1? These methods need to return the correct data for this to work I believe. getItem would need to be:
String getItem(int position)
{
return data.get(position);
}
and getItemId would simply return position instead of 0:
String getItemId(int position)
{
return position;
}

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 Single page calendarview - android

Solution I changed the height of Gridview from wrap_content and set it about 200dp - the height of elements to be inflated multiplied by total no of rows. (you could set it dynamically or in the xml as per your requirements ). I hope this helps others as well

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need help for on click listener for android custom ListView

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