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POPassing strings between activities in android
 

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    <p>I have searched quite a few places but i haven't got up with any good solution that worked yet, and i really need help! I am making an application that needs to pass a longitude and latitude string from one activity to another. How can i do this??? Take a look at my code here: The LocationActivity.java needs to pass the string to the other activity and to another one that i didn't paste into here. And the string that needs to be passed is named: "latLongString"</p> <p>LocationActivity.java:</p> <pre><code>import android.R.string; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.location.Location; import android.location.LocationListener; import android.location.LocationManager; import android.os.Bundle; import android.view.View; import android.widget.TextView; public class LocationActivity extends Activity { private String Location; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); LocationManager locManager; locManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE); locManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,1000L,500.0f, locationListener); Location location = locManager.getLastKnownLocation(LocationManager.GPS_PROVIDER); updateWithNewLocation(location); if(location != null) { double latitude = location.getLatitude(); double longitude = location.getLongitude(); } } private void updateWithNewLocation(Location location) { TextView myLocationText = (TextView)findViewById(R.id.LocationWord); String latLongString = ""; if (location != null) { double lat = location.getLatitude(); double lng = location.getLongitude(); latLongString = "Lat:" + lat + "\nLong:" + lng; //This is where i need to pass the string to the other activity } else { latLongString = "No location found"; } myLocationText.setText("Your Current Position is:\n" + latLongString); } private final LocationListener locationListener = new LocationListener() { public void onLocationChanged(Location location) { updateWithNewLocation(location); } public void onProviderDisabled(String provider) { updateWithNewLocation(null); } public void onProviderEnabled(String provider) { } public void onStatusChanged(String provider, int status, Bundle extras) { } }; } </code></pre> <p>The other activity:</p> <pre><code>import java.io.BufferedWriter; import java.io.File; import java.io.FileOutputStream; import java.io.FileWriter; import java.io.IOException; import java.io.OutputStreamWriter; import java.util.List; import java.util.Locale; import android.R.string; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.location.Address; import android.location.Criteria; import android.location.Geocoder; import android.location.Location; import android.os.Bundle; import android.os.Environment; import android.telephony.gsm.SmsMessage; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast; import android.location.LocationManager; import android.location.LocationListener; public class FindAndroidActivity extends Activity implements OnClickListener { /** Called when the activity is first created. */ Button Nextbutton1, Nextbutton2, Nextbutton3, TestLocationService, EditSettings; TextView Cordinates, Adress, FindAndroid, TextView; EditText LocationWord; private LocationManager locManager; private LocationListener locListener; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.firsttimescreen); Nextbutton1 = (Button)findViewById(R.id.Nextbutton1); Nextbutton1.setOnClickListener(this); } public void onClick(View src) { switch(src.getId()) { case R.id.Nextbutton1: setContentView(R.layout.setup); Nextbutton2 = (Button)findViewById(R.id.Nextbutton2); TestLocationService = (Button)findViewById(R.id.TestLocationService); TestLocationService.setOnClickListener(this); Nextbutton2.setOnClickListener(this); break; case R.id.Nextbutton2: setContentView(R.layout.setup1); Nextbutton3 = (Button)findViewById(R.id.Nextbutton3); LocationWord = (EditText)findViewById(R.id.LocationWord); LocationWord.requestFocus(View.FOCUS_DOWN); Nextbutton3.setOnClickListener(this); break; case R.id.Nextbutton3: setContentView(R.layout.main); EditSettings = (Button)findViewById(R.id.EditSettings); EditSettings.setOnClickListener(this); break; case R.id.TestLocationService: Bundle extras = getIntent().getExtras(); if(extras !=null) { String value = extras.getString("KEY"); } Cordinates = (TextView)findViewById(R.id.Cordinates); Cordinates.setText(value); //This does not work because the string "value" isn't availible outside the braces, //obviously. How do i make it availible there??? break; case R.id.EditSettings: setContentView(R.layout.setup1); Nextbutton3 = (Button)findViewById(R.id.Nextbutton3); LocationWord = (EditText)findViewById(R.id.LocationWord); LocationWord.requestFocus(View.FOCUS_DOWN); Nextbutton3.setOnClickListener(this); break; } } </code></pre> <p>}</p>
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    1. COYou should use putExtra() and getExtras() (or getString) functions from the Intent-class Answered here: [PutExtra/GetExtra][1] [1]: http://stackoverflow.com/questions/5265913/how-to-use-putextra-and-getextra-for-string-data
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