Ravi - Android Hive implemented using Asyn Task . but i have implemented it using Thread and Handlers
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| import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import org.apache.http.HttpEntity;
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.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.widget.TextView;
public class MainActivity extends Activity {
TextView tv;
StringBuilder sb;
BufferedReader br;
InputStream is;
String jsn;
HttpEntity httpEntity = null;
ProgressDialog progDialog;
HttpClient httpClient;
HttpResponse response;
HttpGet get;
String url = "http://api.androidhive.info/contacts/";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tv = (TextView) findViewById(R.id.textView1);
getData();
}
private void getData() {
progDialog = ProgressDialog.show(MainActivity.this, "please Wait ", "Loading....");
Thread background = new Thread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
try {
httpClient = new DefaultHttpClient();
get = new HttpGet(url);
response = httpClient.execute(get);
httpEntity = response.getEntity();
is = httpEntity.getContent();
br = new BufferedReader(new InputStreamReader(is));
sb = new StringBuilder();
String line = null;
while ((line = br.readLine()) != null) {
sb.append(line);
}
br.close();
jsn = sb.toString();
handler.sendEmptyMessage(0);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
handler.sendEmptyMessage(1);
} catch (Throwable e) {
// just end the background thread
Log.i("ThreadHandler", "Thread exception " + e);
handler.sendEmptyMessage(1);
}
}
});
background.start();
}
Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
// TODO Auto-generated method stub
super.handleMessage(msg);
if (progDialog != null && progDialog.isShowing()) {
progDialog.dismiss();
}
if (msg.what == 0) {
try {
if (jsn != null) {
JSONObject jsonobj = new JSONObject(jsn);
Log.d("obj ", jsonobj.toString());
JSONArray arry = jsonobj
.getJSONArray("contacts");
for (int i = 0; i <= arry.length(); i++) {
JSONObject temp = arry.getJSONObject(i);
Log.d("objects " + i, temp.toString());
String id = temp.getString("id");
String name = temp.getString("name");
String email = temp.getString("email");
JSONObject phone = temp
.getJSONObject("phone");
Log.d("phone ", phone.toString());
String mobile = phone.getString("mobile");
String home = phone.getString("home");
tv.append("id :" + id + "\n");
tv.append("Name : " + name + "\n");
tv.append("email :" + email + "\n");
tv.append("mobile :" + mobile + "\n");
tv.append("home :" + home + "\n\n\n");
}
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} else if (msg.what == 1) {
}
}
};
}
|
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