So, I've been following this Vogella ContentProvider tutorial sent to me by a friend, and if you look at the end of section 6.3 you'll see that he says:
If you run this application the data is read from the ContentProvider of the People application and displayed in a TextView. Typically you would display such data in a ListView.
Since I'm new to working with android (and programming in general), I just changed the TextView tag in the main.xml to ListView, and as expected, when I run the app in the emulator, it crashes.
On-demand code:
XML File:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="#+id/contactview"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
Java File:
package de.vogella.android.contentprovider;
import android.app.Activity;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.widget.TextView;
public class ContactsActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_contacts);
TextView contactView = (TextView) findViewById(R.id.contactview);
Cursor cursor = getContacts();
while (cursor.moveToNext()) {
String displayName = cursor.getString(cursor
.getColumnIndex(ContactsContract.Data.DISPLAY_NAME));
contactView.append("Name: ");
contactView.append(displayName);
contactView.append("\n");
}
}
private Cursor getContacts() {
// Run query
Uri uri = ContactsContract.Contacts.CONTENT_URI;
String[] projection = new String[] { ContactsContract.Contacts._ID,
ContactsContract.Contacts.DISPLAY_NAME };
String selection = ContactsContract.Contacts.IN_VISIBLE_GROUP + " = '"
+ ("1") + "'";
String[] selectionArgs = null;
String sortOrder = ContactsContract.Contacts.DISPLAY_NAME
+ " COLLATE LOCALIZED ASC";
return managedQuery(uri, projection, selection, selectionArgs,
sortOrder);
}
}
I'm sure I'm doing something wrong, can someone point me in the right direction or tell me how to switch it from TextView to ListView?
Also, this is unrelated, but I downloaded the adt bundle and sometimes it doesn't generate the R.java file correctly, it doesn't make any changes to the R.java file and leaves it as the default one that gets generated when you make any new android project, any ideas why?
Note: You don't have to answer this question to get your answer accepted.
Related
I want to read a specific SMS in my Inbox. I found on the Internet how to read all the sms in the inbox. That is what I did. Please help me to read just one SMS from a specific number. Thanks
package com.example.liresms;
import android.app.Activity;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.widget.TextView;
public class ReadSMS extends MainActivity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
TextView view = new TextView(this);
Uri uriSMSURI = Uri.parse("content://sms/inbox");
Cursor cur = getContentResolver().query(uriSMSURI, null, null, null,null);
String sms = "";
while (cur.moveToNext()) {
sms += "From :" + cur.getString(2) + " : " + cur.getString(11)+"\n";
}
view.setText(sms);
setContentView(view);
}
}
You're pretty close to already doing it. I suggest you take a look at the arguments for the ContentResolver.query method and pay specific attention to the selection parameter. What you're looking to do is only select messages where a particular column is equal to the number you're looking for...
Something like
Cursor cur = getContentResolver().query(uriSMSURI, null, "from=6159995555", null,null);
I don't know the specific column name off the top of my head, but that should get you started in the right direction...
I am blurred with the situation below where I create a LinearLayout to display contact list from my phone. But, I can't figout out where I can actually set the text inside LinearLayout to become bigger!Please help, thanks!!!!
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<ListView android:layout_width="wrap_content"
android:id="#+id/contactList"
android:layout_height="0dp"
android:padding="10dp"
android:textSize="200sp"
android:layout_weight="10"/>
<CheckBox android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/showInvisible"
android:text="#string/showInvisible"/>
<Button android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="#+id/addContactButton"
android:text="#string/addContactButtonLabel"/>
</LinearLayout>
The contactmanager.xml as below:
package com.example.android.contactmanager;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.util.Log;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
public final class ContactManager extends Activity
{
public static final String TAG = "ContactManager";
private Button mAddAccountButton;
private ListView mContactList;
private boolean mShowInvisible;
//public BooleanObservable ShowInvisible = new BooleanObservable(false);
private CheckBox mShowInvisibleControl;
/**
* Called when the activity is first created. Responsible for initializing the UI.
*/
#Override
public void onCreate(Bundle savedInstanceState)
{
Log.v(TAG, "Activity State: onCreate()");
super.onCreate(savedInstanceState);
setContentView(R.layout.contact_manager);
ArrayAdapter<String> filesAdapter = new ArrayAdapter<String>(this,
R.layout.simplest_list_item_1, topFilesArray);
filesList.setDivider(null);
// Obtain handles to UI objects
mAddAccountButton = (Button) findViewById(R.id.addContactButton);
mContactList = (ListView) findViewById(R.id.contactList);
mShowInvisibleControl = (CheckBox) findViewById(R.id.showInvisible);
// Initialise class properties
mShowInvisible = false;
mShowInvisibleControl.setChecked(mShowInvisible);
// Register handler for UI elements
mAddAccountButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Log.d(TAG, "mAddAccountButton clicked");
launchContactAdder();
}
});
mShowInvisibleControl.setOnCheckedChangeListener(new OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
Log.d(TAG, "mShowInvisibleControl changed: " + isChecked);
mShowInvisible = isChecked;
populateContactList();
}
});
// Populate the contact list
populateContactList();
}
/**
* Populate the contact list based on account currently selected in the account spinner.
*/
private void populateContactList() {
// Build adapter with contact entries
Cursor cursor = getContacts();
String[] fields = new String[] {
ContactsContract.Data.DISPLAY_NAME
};
SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, R.layout.contact_entry, cursor,
fields, new int[] {R.id.contactEntryText});
mContactList.setAdapter(adapter);
}
/**
* Obtains the contact list for the currently selected account.
*
* #return A cursor for for accessing the contact list.
*/
private Cursor getContacts()
{
// Run query
Uri uri = ContactsContract.Contacts.CONTENT_URI;
String[] projection = new String[] {
ContactsContract.Contacts._ID,
ContactsContract.Contacts.DISPLAY_NAME
};
String selection = ContactsContract.Contacts.IN_VISIBLE_GROUP + " = '" + (mShowInvisible ? "0" : "1") + "'";
//String selection = ContactsContract.Contacts.IN_VISIBLE_GROUP + " = '" + (mShowInvisible.get() ? "0" : "1") + "'";
String[] selectionArgs = null;
String sortOrder = ContactsContract.Contacts.DISPLAY_NAME + " COLLATE LOCALIZED ASC";
return this.managedQuery(uri, projection, selection, selectionArgs, sortOrder);
}
/**
* Launches the ContactAdder activity to add a new contact to the selected account.
*/
protected void launchContactAdder() {
Intent i = new Intent(this, ContactAdder.class);
startActivity(i);
}
}
The contact_entry.xml
<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2009 The Android Open Source Project
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView android:text="#+id/contactEntryText"
android:id="#+id/contactEntryText"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
Set this property android:textSize="10dip" of Textview into contact_entry.xml, it will solve your problem.
it is always better to set the size of text in sp (Sp is scaled independently with respect to the normal font size of the device. ) or you can use android:textAppearance="?android:attr/textAppearanceLarge
I am working with Androids contacts and trying to get particular pieces of data. I can already get emails, phone numbers, their name, etc. However I am having difficulty getting the relationship field.
http://developer.android.com/reference/android/provider/ContactsContract.CommonDataKinds.Relation.html
So my goal is: Given a particular userid (from the contact database on Android), figure out their relation field.
This should work. The idea is to connect search in the Data table but use stuff from CommonDataKinds. This is done in where clause ... Data.MIMETYPE == CommonDataKinds.Relation.CONTENT_ITEM_TYPE. This will get you the row with all the Relation stuff.
import android.database.Cursor;
import android.net.Uri;
import android.provider.ContactsContract.CommonDataKinds.Relation;
import android.provider.ContactsContract.Data;
import android.util.Log;
...
public void logCatTheRelation(long contactId){
Uri uri = Data.CONTENT_URI;
String where = String.format(
"%s = ? AND %s = ?",
Data.MIMETYPE,
Relation.CONTACT_ID);
String[] whereParams = new String[] {
Relation.CONTENT_ITEM_TYPE,
Long.toString(contactId),
};
String[] selectColumns = new String[]{
Relation.NAME,
// add additional columns here
};
Cursor relationCursor = this.getContentResolver().query(
uri,
selectColumns,
where,
whereParams,
null);
try{
if (relationCursor.moveToFirst()) {
Log.d("gizm0", relationCursor.getString(
relationCursor.getColumnIndex(Relation.NAME)));
}
Log.d("gizm0", "sadly no relation ... ");
}finally{
relationCursor.close();
}
}
I am working on an Android Honeycomb (v3.0) application that has a requirement of displaying ALL contacts stored within the Google account that is registered on the device. One of the problems I am having is that I can only retrieve the contacts that are available within "My Contacts", "Starred in Android", and "Other Contacts". I would also like to be able to retrieve contacts from the "Directory". I believe that the "Directory" section is a feature provided by Google to organizations and companies who wish to provide a directory of all members/employees within their domains to others. Please see the screenshot below:
So far, I have the following line in my manifest file:
<uses-permission android:name="android.permission.READ_CONTACTS" />
I have tried using this code:
Cursor cursor = getContentResolver().query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
while (cursor.moveToNext()) {
String name = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
}
cursor.close();
In my case, "My Contacts" and "Starred in Android" are empty. However, the (1) contact in "Other Contacts" is obtained. The "Directory" contains hundreds of contacts that are not retrieved, though.
My question: Is there any way to make sure that the contacts in the "Directory" are retrieved as well? I know that I can simply copy the contacts over using the web browser and then sync them to the device, but if a new contact is added to the "Directory", I would have to do this manually every time, so this is not a great choice for me. Please advise.
look at the following code
import android.app.Activity;
import android.content.ContentResolver;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.ContactsContract;
public class TestContacts extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ContentResolver cr = getContentResolver();
Cursor cur = cr.query(ContactsContract.Contacts.CONTENT_URI, null,
null, null, null);
if (cur.getCount() > 0) {
while (cur.moveToNext()) {
String id = cur.getString(cur
.getColumnIndex(ContactsContract.Contacts._ID));
String name = cur
.getString(cur
.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
if (("1")
.equals(cur
.getString(cur
.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER)))) {
Cursor pCur = cr.query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID
+ " = ?", new String[] { id }, null);
int i = 0;
int pCount = pCur.getCount();
String[] phoneNum = new String[pCount];
String[] phoneType = new String[pCount];
while (pCur.moveToNext()) {
phoneNum[i] = pCur
.getString(pCur
.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
phoneType[i] = pCur
.getString(pCur
.getColumnIndex(ContactsContract.CommonDataKinds.Phone.TYPE));
i++;
}
}
Can anyone shed a light on how to get contact list from android?.
I just want to get the same list as in the dialer app. But im getting a lots of contacts that are not on the dialer list with the code below.
ContentResolver cr = getContentResolver();
Cursor cursor = cr.query(Contacts.People.CONTENT_URI, null, null, null, Contacts.ContactMethods.DEFAULT_SORT_ORDER);
startManagingCursor(cursor);
Thanks in advance.
Try this snippet:
import android.app.ListActivity;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.widget.SimpleCursorAdapter;
public class ContactList extends ListActivity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Cursor cursor = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, new String[] {Phone._ID, Phone.DISPLAY_NAME, Phone.NUMBER}, null, null, null);
startManagingCursor(cursor);
String[] from = new String[] { Phone.DISPLAY_NAME, Phone.NUMBER};
int[] to = new int[] { R.id.name_entry, R.id.number_entry};
SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, R.layout.list_entry, cursor, from, to);
this.setListAdapter(adapter);
}
}
XML file is:
list_entry.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="wrap_content"
android:padding="6dip">
<TextView
android:id="#+id/name_entry"
android:layout_width="fill_parent"
android:layout_height="0dip"
android:layout_weight="1"
android:gravity="center_vertical"
android:textSize="18dip"/>
<TextView
android:layout_width="fill_parent"
android:layout_height="0dip"
android:layout_weight="1"
android:id="#+id/number_entry"
android:singleLine="true"
android:ellipsize="marquee"
android:textSize="18dip"/>
</LinearLayout>
What you have seems fine. Could you elaborate on "getting a lots of contacts that are not on the dialer list"? Is it that Android is making up people? Or is it that you are seeing people with email addresses but no phone numbers (who therefore might not show up in the Dialer)?
Note that Contacts.People is for Android 1.6 and below. That provider is deprecated starting with Android 2.0, replaced by the ContactsContract set of providers.
This is basic implementation of android contact list Activity.
Well, thanks for the answer first. Just to shed a light on this.
I just wanted to get emails only for the contacts on my phone. The "MyContacts" group. I saw this is the group ContactList Activity uses.
I finished doing somethig like this:
c = cr.query(myGroupUri, mEmailsProjection, null, null, null);
....
c.close();
c = cr.query(
Contacts.ContactMethods.CONTENT_URI,
mContactsProjection, contactIds, null, null
);
....
c.close();
Just queried the group first and then the emails table.
try using intent to go to the contact list
startActivityForResult( new Intent(Intent.ACTION_PICK,ContactsContract.Contacts.CONTENT_URI),1);}