Providing a few hundred lines of code and asking people to debug it for you won't get much help.
Something in your program is null, it shouldn't be null, make it not null. Give a stack trace, by doing an adb logcat, which will tell you the trace of how your program got there, (seems you might have done that). Then trace through your program in a debugger to find out the path of code that is causing a null pointer exception, and try to become enlightened as to why something is null when it shouldn't be. kris On Thu, Mar 22, 2012 at 6:25 AM, ravindra bhavsar <[email protected]> wrote: > > Hello developers, > > I want call web service on if particular word is found in message.but it > shows null pointer exception. > > //sms Receiver code > import android.content.BroadcastReceiver; > import android.content.Context; > import android.content.Intent; > import android.os.Bundle; > import android.telephony.SmsMessage; > import android.widget.Toast; > > > public class SmsReceiver extends BroadcastReceiver{ > > @Override > public void onReceive(Context context, Intent intent) { > Bundle bundle = intent.getExtras(); > SmsMessage[] msgs = null; > String str = ""; > if (bundle != null) > { > //---retrieve the SMS message received--- > Object[] pdus = (Object[]) bundle.get("pdus"); > msgs = new SmsMessage[pdus.length]; > for (int i=0; i<msgs.length; i++){ > msgs[i] = > SmsMessage.createFromPdu((byte[])pdus[i]); > str += "SMS from " > +msgs[i].getOriginatingAddress(); > str += " :"; > str += msgs[i].getMessageBody().toString(); > str += "\n"; > > if(str.contains("abc")) > { > Toast.makeText(context, "found", > Toast.LENGTH_LONG).show(); > JsonParsingActivity jpa=new JsonParsingActivity(); > > jpa.check(); > // Toast.makeText(context, "web service > acccess",Toast.LENGTH_LONG).show(); > > } > else > { > Toast.makeText(context, "Not found", > Toast.LENGTH_LONG).show(); > } > } > //---display the new SMS message--- > //Toast.makeText(context, str, Toast.LENGTH_SHORT).show(); > > } > > } > > } > > //JsonParsingActivity. > > import java.io.IOException; > import java.io.InputStream; > import java.io.InputStreamReader; > import java.io.Reader; > import java.util.List; > > import org.apache.http.HttpEntity; > import org.apache.http.HttpResponse; > import org.apache.http.HttpStatus; > import org.apache.http.client.methods.HttpGet; > import org.apache.http.impl.client.DefaultHttpClient; > > import android.app.Activity; > import android.os.Bundle; > import android.util.Log; > import android.widget.Toast; > > import com.google.gson.Gson; > > public class JsonParsingActivity extends Activity { > > String url = > "http://search.twitter.com/search.json?q=javacodegeeks";; > > > @Override > public void onCreate(Bundle savedInstanceState) { > > super.onCreate(savedInstanceState); > setContentView(R.layout.main); > > > } > public void check() > { > InputStream source = retrieveStream(url); > > Gson gson = new Gson(); > Reader reader = new InputStreamReader(source); > SearchResponse response = gson.fromJson(reader, > SearchResponse.class); > Toast.makeText(this, response.query, > Toast.LENGTH_SHORT).show(); > List<Result> results = response.results; > > for (Result result : results) { > Toast.makeText(this, result.fromUser, > Toast.LENGTH_SHORT).show(); > } > } > > private InputStream retrieveStream(String url) { > > DefaultHttpClient client = new DefaultHttpClient(); > > HttpGet getRequest = new HttpGet(url); > > try { > > HttpResponse getResponse = client.execute(getRequest); > final int statusCode = > getResponse.getStatusLine().getStatusCode(); > > if (statusCode != HttpStatus.SC_OK) { > Log.w(getClass().getSimpleName(), "Error " + statusCode + " > for URL " +url); > return null; > } > > HttpEntity getResponseEntity = getResponse.getEntity(); > return getResponseEntity.getContent(); > > } > catch (IOException e) { > getRequest.abort(); > Log.w(getClass().getSimpleName(), "Error for URL " + url, e); > } > > return null; > > } > > > //Result.java > import com.google.gson.annotations.SerializedName; > > > public class Result { > > @SerializedName("from_user_id_str") > public String fromUserIdStr; > > @SerializedName("profile_image_url") > public String profileImageUrl; > > @SerializedName("created_at") > public String createdAt; > > @SerializedName("from_user") > public String fromUser; > > @SerializedName("id_str") > public String idStr; > > public Metadata metadata; > > @SerializedName("to_user_id") > public String toUserId; > > public String text; > > public long id; > > @SerializedName("from_user_id") > public String from_user_id; > > @SerializedName("iso_language_code") > public String isoLanguageCode; > > @SerializedName("to_user_id_str") > public String toUserIdStr; > > public String source; > > } > // > import java.util.List; > > import com.google.gson.annotations.SerializedName; > > public class SearchResponse { > > public List<Result> results; > > @SerializedName("max_id") > public long maxId; > > @SerializedName("since_id") > public int sinceId; > > @SerializedName("refresh_url") > public String refreshUrl; > > @SerializedName("next_page") > public String nextPage; > > @SerializedName("results_per_page") > public int resultsPerPage; > > public int page; > > @SerializedName("completed_in") > public double completedIn; > > @SerializedName("since_id_str") > public String sinceIdStr; > > @SerializedName("max_id_str") > public String maxIdStr; > > public String query; > > } > //metedata.java > import com.google.gson.annotations.SerializedName; > > > public class Metadata { > > @SerializedName("result_type") > public String resultType; > > } > //AndroidManifest.xml > > <?xml version="1.0" encoding="utf-8"?> > <manifest > xmlns:android="http://schemas.android.com/apk/res/android"; > package="com.mobisys.android.sms_messaging" > android:versionCode="1" > android:versionName="1.0"> > > <uses-permission android:name="android.permission.SEND_SMS"/> > > <uses-permission > android:name="android.permission.RECEIVE_SMS"/> > > <uses-permission android:name="android.permission.INTERNET" /> > > > <application > android:icon="@drawable/icoandroid:label="@string/app_name"> > <activity android:name=".SMSActivity" > android:label="@string/app_name"> > <intent-filter> > <action android:name="android.intent.action.MAIN" /> > <category android:name="android.intent.category.LAUNCHER" /> > </intent-filter> > </activity> > <activity android:name=".JsonParsingActivity"> > > </activity> > <receiver android:name=".SmsReceiver"> > <intent-filter> > <action android:name= > "android.provider.Telephony.SMS_RECEIVED" /> > </intent-filter> > </receiver> > > > </application> > <uses-sdk android:minSdkVersion="3" /> > > > > </manifest> > > //Whernerver any perticualer word is found like abc it calls web > servcice but it shows > NULLPOINTEREXCEPTION here. > > SearchResponse response = gson.fromJson(reader, > SearchResponse.class); > > Toast.makeText(this, response.query, > Toast.LENGTH_SHORT).show(); > List<Result> results = response.results; > plz any body Help me.............. > > > > > > -- > 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 -- You received this message because you are subscribed to the Google Groups "Android Developers" group. 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