I have a listview of names(imported from database).When a name on the list is clicked,I want to get the details of the name from the database so I have to pass the name to the next class where I am retrieving the details.I am trying to pass a name from one class to another class. I don't know if I am passing the string wrong or getting the name of the string in a wrong way.
contact.java:
public class Contacts extends Activity implements OnClickListener {
int NewContact_Request_Code = 1;
Button newcontact;
ListView listview;
public static final String LOG_TAG = "Contacts";
int mInt = 0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.contactview);// Set the content to contactview.xml
// newcontact = NEW CONTACT button
// listview = MyList List View
newcontact = (Button) findViewById(R.id.baddcontact);
listview = (ListView) findViewById(R.id.mylist);
// Make a New Database
DBContact info = new DBContact(this);
// Open , get Information from database and close it
info.open();
String[] data = info.queryAll();
info.close();
// listview = getListView();
listview.setTextFilterEnabled(true);
// Display the names
ArrayAdapter<String> adapter = new ArrayAdapter<String>(Contacts.this,
android.R.layout.simple_list_item_1, data);
listview.setAdapter(adapter);
listview.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?>listview, View view,
int position, long id) {
String nameclicked = ((TextView)view).getText().toString();
Intent viewintent = new Intent(Contacts.this, ViewContact.class);
viewintent.putExtra("name_clicked", nameclicked);
startActivity(viewintent);
}
});
newcontact.setOnClickListener(this);
}
public void onClick(View v) {
// TODO Auto-generated method stub
Intent newintent = new Intent(Contacts.this, AddNewContact.class);
// start activity for result - to get the name of the new contact
startActivityForResult(newintent, 0);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
// pass the value of the string via cursor and update the list
}
}
viewcontact.java:
public class ViewContact extends Activity implements OnClickListener {
Button ViewPPhone, ViewHPhone, ViewOPhone, EditContact;
TextView ViewName;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.viewcontact);
savedInstanceState = getIntent().getExtras();
String name = savedInstanceState.getString("name_clicked");
Long l = Long.parseLong(name);
DBContact getdetails = new DBContact(this);
getdetails.open();
String returnedname = getdetails.getName(l);
String returnedpphone = getdetails.getPphone(l);
String returnedhphone = getdetails.getHphone(l);
String returnedophone = getdetails.getOphone(l);
getdetails.close();
ViewName.setText(returnedname);
ViewPPhone.setText(returnedpphone);
ViewHPhone.setText(returnedhphone);
ViewOPhone.setText(returnedophone);
EditContact = (Button) findViewById(R.id.bEditContact);
EditContact.setOnClickListener(this);
ViewPPhone = (Button) findViewById(R.id.ViewPersonalPhoneNumber);
ViewPPhone.setOnClickListener(this);
ViewHPhone = (Button) findViewById(R.id.ViewHomePhoneNumber);
ViewHPhone.setOnClickListener(this);
ViewOPhone = (Button) findViewById(R.id.ViewOfficePhoneNumber);
ViewOPhone.setOnClickListener(this);
}
public void onClick(View view) {
// TODO Auto-generated method stub
switch (view.getId()) {
case R.id.ViewPersonalPhoneNumber:
/* Intent dialpersonalphone = new
Intent(android.content.Intent.ACTION_DIAL,
Uri.parse("returnedpphone"));
startActivity(dialpersonalphone );*/
break;
case R.id.ViewHomePhoneNumber:
/*Intent dialhome = new
Intent(android.content.Intent.ACTION_DIAL,
Uri.parse("returnedhphone"));
startActivity(dialhome);*/
break;
case R.id.ViewOfficePhoneNumber:
/*Intent dialoffice = new
Intent(android.content.Intent.ACTION_DIAL,
Uri.parse("returnedophone"));
startActivity(dialoffice);*/
break;
case R.id.bEditContact:
startActivity(new Intent("com.example.contactlist.EDITCONTACT"));
break;
}
}
}
LOGCAT
10-02 10:30:23.064: E/AndroidRuntime(1045): FATAL EXCEPTION: main
10-02 10:30:23.064: E/AndroidRuntime(1045): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.contactlist/com.example.contactlist.ViewContact}: java.lang.NumberFormatException: Invalid long: "nishanth"
10-02 10:30:23.064: E/AndroidRuntime(1045): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059)
10-02 10:30:23.064: E/AndroidRuntime(1045): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
10-02 10:30:23.064: E/AndroidRuntime(1045): at android.app.ActivityThread.access$600(ActivityThread.java:130)
10-02 10:30:23.064: E/AndroidRuntime(1045): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
10-02 10:30:23.064: E/AndroidRuntime(1045): at android.os.Handler.dispatchMessage(Handler.java:99)
10-02 10:30:23.064: E/AndroidRuntime(1045): at android.os.Looper.loop(Looper.java:137)
10-02 10:30:23.064: E/AndroidRuntime(1045): at android.app.ActivityThread.main(ActivityThread.java:4745)
10-02 10:30:23.064: E/AndroidRuntime(1045): at java.lang.reflect.Method.invokeNative(Native Method)
10-02 10:30:23.064: E/AndroidRuntime(1045): at java.lang.reflect.Method.invoke(Method.java:511)
10-02 10:30:23.064: E/AndroidRuntime(1045): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
10-02 10:30:23.064: E/AndroidRuntime(1045): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
10-02 10:30:23.064: E/AndroidRuntime(1045): at dalvik.system.NativeStart.main(Native Method)
10-02 10:30:23.064: E/AndroidRuntime(1045): Caused by: java.lang.NumberFormatException: Invalid long: "nishanth"
10-02 10:30:23.064: E/AndroidRuntime(1045): at java.lang.Long.invalidLong(Long.java:125)
10-02 10:30:23.064: E/AndroidRuntime(1045): at java.lang.Long.parse(Long.java:362)
10-02 10:30:23.064: E/AndroidRuntime(1045): at java.lang.Long.parseLong(Long.java:353)
10-02 10:30:23.064: E/AndroidRuntime(1045): at java.lang.Long.parseLong(Long.java:319)
10-02 10:30:23.064: E/AndroidRuntime(1045): at com.example.contactlist.ViewContact.onCreate(ViewContact.java:23)
10-02 10:30:23.064: E/AndroidRuntime(1045): at android.app.Activity.performCreate(Activity.java:5008)
10-02 10:30:23.064: E/AndroidRuntime(1045): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)
10-02 10:30:23.064: E/AndroidRuntime(1045): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023)
10-02 10:30:23.064: E/AndroidRuntime(1045): ... 11 more
when I am passing information with bundles I find that I need to instantiate an os.Bundle object which I then go on to populate with my bundle information before adding this bundle to the intent.
Modify your contact.java code to read;
Intent viewintent = new Intent(Contacts.this, ViewContact.class);
final Bundle bundle = new Bundle();
bundle.putString("name_clicked", nameclicked);
viewintent.putExtras(bundle);
startActivity(viewintent);
and re-run to see if that works.
EDIT
The problem is that String nameclicked = ((TextView)view).getText().toString(); doesn't return a long- it returns the contact name, "nishanth"! This is clear in the logcat log which states;
10-02 10:30:23.064: E/AndroidRuntime(1045): Caused by: java.lang.NumberFormatException: Invalid long: "nishanth"
The view returned by ((TextView)view) is not the phone number- rather it is the name of the contact as alluded to by your key "name_clicked". Change this view to target the phone number. Note that a phone number can contain "+" and "-" symbols so this implementation of retrieving the selected phone number is not fool-proof.