Thanks Mark.!!
I tried implementing the activity.this.startActivityForResult()
[ //results.this.startActivityForResult(myIntent, 0); ]
I get error like
"No enclosing instance of the type results is accessible in scope"
When i read about this error i found it is "When we try to instantiate
the inner class without instantiating the base class"
But i couldnt map it to my code what is the mistake i am doing. Sorry.
Could you please help me sort out this.?
Thanks
Mani
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.net.URLEncoder;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONObject;
import android.app.ListActivity;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
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 results extends ListActivity {
static String result="";
private static String DATA[];
private static String ADDR[];
private static class EfficientAdapter extends BaseAdapter {
private LayoutInflater mInflater;
private Bitmap mIcon1;
private Bitmap mIcon2;
public EfficientAdapter(Context context) {
// Cache the LayoutInflate to avoid asking for a new one
each time.
mInflater = LayoutInflater.from(context);
// Icons bound to the rows.
mIcon1 =
BitmapFactory.decodeResource(context.getResources(),
R.drawable.next_arrow);
mIcon2 =
BitmapFactory.decodeResource(context.getResources(),
R.drawable.next_arrow);
}
public int getCount() {
return DATA.length+1;
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup
parent) {
ViewHolder holder;
if(position == 0)
{
convertView = mInflater.inflate(R.layout.main1, null);
Button button =
(Button)convertView.findViewById(R.id.button);
button.setOnClickListener(mButtonListener);
}
else
{
if (convertView == null) {
convertView = mInflater.inflate(R.layout.main2, null);
holder = new ViewHolder();
holder.title = (TextView)
convertView.findViewById(R.id.title);
holder.address = (TextView)
convertView.findViewById(R.id.address);
holder.icon = (ImageView)
convertView.findViewById(R.id.icon);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.title.setText(DATA[position-1]);
holder.address.setText(ADDR[position-1]);
holder.icon.setImageBitmap((position & 1) == 1 ? mIcon1 :
mIcon2);
}
return convertView;
}
static class ViewHolder {
TextView title;
TextView address;
ImageView icon;
}
} // End of efficientadapter class
private static OnClickListener mButtonListener = new
OnClickListener() {
public void onClick(View v) {
Intent myIntent = new Intent(v.getContext(),
firstandroid.class);
//results.this.startActivityForResult(myIntent, 0);
// finish();
sendSearchRequest(8);
}
};
public static String sendSearchRequest(int count)
{
//
HttpClient client = new DefaultHttpClient();
String query = "http://ajax.googleapis.com/ajax/services/search/local?
hl=en&v=1.0&q=paris hotel&start=";
query+=count;
try {
URL url = new URL(query);
URI uri = new URI(url.getProtocol(), url.getHost(),
url.getPath(),
url.getQuery(), null);
HttpGet request = new HttpGet(uri);
HttpResponse response = client.execute(request);
result+=Userrequest(response);
}catch (URISyntaxException e){
}
catch(Exception ex){
//txtResult.setText("Failed!");
}
return result;
}
public static String Userrequest(HttpResponse response){
try{
InputStream in = response.getEntity().getContent();
BufferedReader reader = new BufferedReader(new
InputStreamReader(in));
StringBuilder str = new StringBuilder();
String line = null;
while((line = reader.readLine()) != null){
str.append(line + "\n");
}
in.close();
result = str.toString();
}catch(Exception ex){
result = "Error";
}
return result;
}
public static void updateData(String result)
{
try
{
JSONObject json=new JSONObject(result);
JSONArray ja;
json = json.getJSONObject("responseData");
ja = json.getJSONArray("results");
int resultCount = ja.length();
DATA = new String[resultCount];
ADDR = new String[resultCount];
for (int i = 0; i < resultCount; i++)
{
JSONObject resultObject = ja.getJSONObject(i);
DATA[i]=resultObject.get("titleNoFormatting").toString();
JSONArray addr;
addr = resultObject.getJSONArray("addressLines");
int count = addr.length();
ADDR[i]="";
for(int j=0;j<count;j++)
{
ADDR[i]+=addr.getString(j);
if(j==0)
ADDR[i]+=',';
}
}
}
catch(Exception e)
{
}
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
sendSearchRequest(0);
updateData(result);
setListAdapter(new EfficientAdapter(this));
}
}
On Sep 2, 2:07 am, Mark Murphy <[email protected]> wrote:
> Call startActivityForResult() on the Activity, then. Depending on how
> you have set up your code, that might simply be a matter of:
>
> MyActivity.this.startActivityForResult()
>
> or possibly you will need to arrange to pass the Activity instance to
> your OnClickListener.
>
>
>
> On Wed, Sep 1, 2010 at 8:12 AM,mani<[email protected]> wrote:
>
> > Hi all,
>
> > I am in a situation like, i have custom list view. One button, with
> > listitems.
>
> > When i click the button, i need toswitchthe activity. But the
> > calls,
> > startActivityForResult(myIntent, 0); --> is a non static call. I
> > couldnt initiate this function in onClickLIstener() for the button.
>
> > Dont know how to proceed with this situation ?
>
> > Can anyone help me out with this.?
>
> > Thanks in advance...!!
>
> > Thanks,
> >Mani
>
> > java file
> > -------------
>
> > package com.example.firstandroid;
>
> > import java.io.BufferedReader;
> > import java.io.InputStream;
> > import java.io.InputStreamReader;
> > import java.net.URI;
> > import java.net.URISyntaxException;
> > import java.net.URL;
> > import java.net.URLEncoder;
>
> > import org.apache.http.HttpResponse;
> > import org.apache.http.client.HttpClient;
> > import org.apache.http.client.methods.HttpGet;
> > import org.apache.http.impl.client.DefaultHttpClient;
> > import org.json.JSONArray;
> > import org.json.JSONObject;
>
> > import android.app.ListActivity;
> > import android.content.Context;
> > import android.content.Intent;
> > import android.graphics.Bitmap;
> > import android.graphics.BitmapFactory;
> > import android.os.Bundle;
> > 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 results extends ListActivity {
>
> > static String result="";
> > private static String DATA[];
> > private static String ADDR[];
>
> > /**
> > * Demonstrates how to write an efficient list adapter. The adapter
> > used in this example binds
> > * to an ImageView and to a TextView for each row in the list.
> > *
> > * To work efficiently the adapter implemented here uses two
> > techniques:
> > * - It reuses the convertView passed to getView() to avoid inflating
> > View when it is not necessary
> > * - It uses the ViewHolder pattern to avoid calling findViewById()
> > when it is not necessary
> > *
> > * The ViewHolder pattern consists in storing a data structure in the
> > tag of the view returned by
> > * getView(). This data structures contains references to the views
> > we want to bind data to, thus
> > * avoiding calls to findViewById() every time getView() is invoked.
> > */
>
> > private static class EfficientAdapter extends BaseAdapter {
> > private LayoutInflater mInflater;
> > private Bitmap mIcon1;
> > private Bitmap mIcon2;
>
> > public EfficientAdapter(Context context) {
> > // Cache the LayoutInflate to avoid asking for a new one
> > each time.
> > mInflater = LayoutInflater.from(context);
>
> > // Icons bound to the rows.
> > mIcon1 =
> > BitmapFactory.decodeResource(context.getResources(),
> > R.drawable.next_arrow);
> > mIcon2 =
> > BitmapFactory.decodeResource(context.getResources(),
> > R.drawable.next_arrow);
> > }
>
> > public int getCount() {
> > return DATA.length+1;
> > }
> > public Object getItem(int position) {
> > return position;
> > }
>
> > public long getItemId(int position) {
> > return position;
> > }
>
> > public View getView(int position, View convertView, ViewGroup
> > parent) {
> > ViewHolder holder;
> > if(position == 0)
> > {
> > convertView = mInflater.inflate(R.layout.main1, null);
> > Button button =
> > (Button)convertView.findViewById(R.id.button);
> > button.setOnClickListener(mButtonListener);
> > }
> > else
> > {
> > if (convertView == null) {
> > convertView = mInflater.inflate(R.layout.main2, null);
> > holder = new ViewHolder();
> > holder.title = (TextView)
> > convertView.findViewById(R.id.title);
> > holder.address = (TextView)
> > convertView.findViewById(R.id.address);
> > holder.icon = (ImageView)
> > convertView.findViewById(R.id.icon);
> > convertView.setTag(holder);
> > } else {
> > holder = (ViewHolder) convertView.getTag();
> > }
> > holder.title.setText(DATA[position-1]);
> > holder.address.setText(ADDR[position-1]);
> > holder.icon.setImageBitmap((position & 1) == 1 ? mIcon1 :
> > mIcon2);
> > }
> > return convertView;
> > }
> > static class ViewHolder {
> > TextView title;
> > TextView address;
> > ImageView icon;
> > }
> > }
>
> > private static OnClickListener mButtonListener = new
> > OnClickListener() {
> > public void onClick(View v) {
> > Intent myIntent = new Intent(v.getContext(),
> > firstandroid.class);
> > // How do iswitchto other activity from here ????
> > // startActivityForResult(myIntent, 0);
> > // finish();
> > sendSearchRequest(8);
>
> > }
> > };
> > public static String sendSearchRequest(int count)
> > {
> > HttpClient client = new DefaultHttpClient();
> > String query =
> > "http://ajax.googleapis.com/ajax/services/search/local?
> > hl=en&v=1.0&q=paris hotel&start=";
> > query+=count;
> > try {
> > URL url = new URL(query);
> > URI uri = new URI(url.getProtocol(), url.getHost(),
> > url.getPath(),
> > url.getQuery(), null);
> > HttpGet request = new HttpGet(uri);
> > HttpResponse response = client.execute(request);
> > result+=Userrequest(response);
> > }catch (URISyntaxException e){
>
> > }
> > catch(Exception ex){
> > //txtResult.setText("Failed!");
> > }
> > return result;
> > }
> > public static String Userrequest(HttpResponse response){
> > try{
> > InputStream in = response.getEntity().getContent();
> > BufferedReader reader = new BufferedReader(new
> > InputStreamReader(in));
> > StringBuilder str = new StringBuilder();
> > String line = null;
> > while((line = reader.readLine()) != null){
> > str.append(line + "\n");
> > }
> > in.close();
> > result = str.toString();
>
> > }catch(Exception ex){
> > result = "Error";
> > }
> > return result;
> > }
> > public static void updateData(String result)
> > {
> > try
> > {
> > JSONObject json=new JSONObject(result);
> > JSONArray ja;
> > json = json.getJSONObject("responseData");
> > ja = json.getJSONArray("results");
>
> > int resultCount = ja.length();
> > DATA = new String[resultCount];
> > ADDR = new String[resultCount];
> > for (int i = 0; i < resultCount; i++)
> > {
> > JSONObject resultObject = ja.getJSONObject(i);
> > DATA[i]=resultObject.get("titleNoFormatting").toString();
> > JSONArray addr;
> > addr = resultObject.getJSONArray("addressLines");
> > int count = addr.length();
> > ADDR[i]="";
> > for(int j=0;j<count;j++)
> > {
> > ADDR[i]+=addr.getString(j);
> > if(j==0)
> > ADDR[i]+=',';
> > }
> > }
> > }
> > catch(Exception e)
> > {
>
> > }
> > }
> > �...@override
> > public void onCreate(Bundle savedInstanceState) {
> > super.onCreate(savedInstanceState);
> > sendSearchRequest(0);
> > updateData(result);
> > setListAdapter(new EfficientAdapter(this));
> > }
>
> > }
>
> > main2.xml
> > ----------------
>
> > <?xml version="1.0" encoding="utf-8" ?>
>
> > <LinearLayout xmlns:android="http://schemas.android.com/apk/res/
> > android" android:orientation="horizontal"
> > android:layout_width="match_parent"
> > android:layout_height="match_parent">
>
> > <TextView android:id="@+id/title"
> > android:layout_gravity="center_vertical"
> > android:layout_width="0dip"
> > android:layout_weight="1.0"
> > android:layout_height="wrap_content" />
> > <TextView android:id="@+id/address"
> > android:layout_gravity="center_vertical"
> > android:layout_width="0dip"
> > android:layout_weight="1.0"
> > android:layout_height="wrap_content" />
>
> > <ImageView android:id="@+id/icon"
> > android:layout_gravity="center_vertical"
> > android:layout_width="30dip"
> > android:layout_height="30dip" />
>
> > </LinearLayout>
>
> > main1.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:orientation="vertical" >
> > <Button android:id="@+id/button"
>
> ...
>
> read more »
--
You received this message because you are subscribed to the Google
Groups "Android Developers" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en
