【发布时间】：2011-09-10 01:27:30
【问题描述】：
**我试过这段代码。它工作正常，没有任何错误。但是在createContact 方法之后，我打开了android 的联系人应用程序。我使用createContact 添加的联系人不存在。当我单击显示联系人时，它正在显示。
究竟是什么问题？**
如果您有其他代码，请发布...
import java.util.ArrayList;
import android.app.Activity;
import android.content.ContentProviderOperation;
import android.content.ContentResolver;
import android.content.OperationApplicationException;
import android.database.Cursor;
import android.os.Bundle;
import android.os.RemoteException;
import android.provider.ContactsContract;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
public class NativeContentProvider extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.nativecontentprovider);
Button view = (Button)findViewById(R.id.viewButton);
Button add = (Button)findViewById(R.id.createButton);
Button modify = (Button)findViewById(R.id.updateButton);
Button delete = (Button)findViewById(R.id.deleteButton);
view.setOnClickListener(new OnClickListener() {
public void onClick(View v){
displayContacts();
Log.i("NativeContentProvider", "Completed Displaying Contact list");
}
});
add.setOnClickListener(new OnClickListener() {
public void onClick(View v){
createContact("Mangesh Joshi", "123456789");
Log.i("NativeContentProvider", "Created a new contact, of course hard-coded");
}
});
modify.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
updateContact("Sample Name", "987654321");
Log.i("NativeContentProvider", "Completed updating the email id, if applicable");
}
});
delete.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
deleteContact("Sample Name");
Log.i("NativeContentProvider", "Deleted the just created contact");
}
});
}
private void displayContacts() {
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 (Integer.parseInt(cur.getString(
cur.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER))) > 0) {
Cursor pCur = cr.query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = ?",
new String[]{id}, null);
while (pCur.moveToNext()) {
String phoneNo = pCur.getString(pCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
Toast.makeText(NativeContentProvider.this, "Name: " + name + ", Phone No: " + phoneNo, Toast.LENGTH_SHORT).show();
}
pCur.close();
}
}
}
}
private void createContact(String name, String phone) {
ContentResolver cr = getContentResolver();
Cursor cur = cr.query(ContactsContract.Contacts.CONTENT_URI,
null, null, null, null);
if (cur.getCount() > 0) {
while (cur.moveToNext()) {
String existName = cur.getString(cur.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
if (existName.contains(name)) {
Toast.makeText(NativeContentProvider.this,"The contact name: " + name + " already exists", Toast.LENGTH_SHORT).show();
return;
}
}
}
ArrayList<ContentProviderOperation> ops = new ArrayList<ContentProviderOperation>();
ops.add(ContentProviderOperation.newInsert(ContactsContract.Contacts.CONTENT_URI)
.withValue(ContactsContract.RawContacts.ACCOUNT_TYPE, "accountname@gmail.com")
.withValue(ContactsContract.RawContacts.ACCOUNT_NAME, "com.google")
.build());
ops.add(ContentProviderOperation.newInsert(ContactsContract.Contacts.CONTENT_URI)
.withValueBackReference(ContactsContract.Data.RAW_CONTACT_ID, 0)
.withValue(ContactsContract.Data.MIMETYPE,
ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE)
.withValue(ContactsContract.CommonDataKinds.StructuredName.DISPLAY_NAME, name)
.build());
ops.add(ContentProviderOperation.newInsert(ContactsContract.Contacts.CONTENT_URI)
.withValueBackReference(ContactsContract.Data.RAW_CONTACT_ID, 0)
.withValue(ContactsContract.Data.MIMETYPE,
ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE)
.withValue(ContactsContract.CommonDataKinds.Phone.NUMBER, phone)
.withValue(ContactsContract.CommonDataKinds.Phone.TYPE, ContactsContract.CommonDataKinds.Phone.TYPE_HOME)
.build());
try {
cr.applyBatch(ContactsContract.AUTHORITY, ops);
} catch (RemoteException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (OperationApplicationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Toast.makeText(NativeContentProvider.this, "Created a new contact with name: " + name + " and Phone No: " + phone, Toast.LENGTH_SHORT).show();
}
private void updateContact(String name, String phone) {
ContentResolver cr = getContentResolver();
String where = ContactsContract.Data.DISPLAY_NAME + " = ? AND " +
ContactsContract.Data.MIMETYPE + " = ? AND " +
String.valueOf(ContactsContract.CommonDataKinds.Phone.TYPE) + " = ? ";
String[] params = new String[] {name,
ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE,
String.valueOf(ContactsContract.CommonDataKinds.Phone.TYPE_HOME)};
Cursor phoneCur = managedQuery(ContactsContract.Data.CONTENT_URI, null, where, params, null);
ArrayList<ContentProviderOperation> ops = new ArrayList<ContentProviderOperation>();
if ( (null == phoneCur) ) {
createContact(name, phone);
} else {
ops.add(ContentProviderOperation.newUpdate(ContactsContract.Data.CONTENT_URI)
.withSelection(where, params)
.withValue(ContactsContract.CommonDataKinds.Phone.DATA, phone)
.build());
}
phoneCur.close();
try {
cr.applyBatch(ContactsContract.AUTHORITY, ops);
} catch (RemoteException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (OperationApplicationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Toast.makeText(NativeContentProvider.this, "Updated the phone number of 'Sample Name' to: " + phone, Toast.LENGTH_SHORT).show();
}
private void deleteContact(String name) {
ContentResolver cr = getContentResolver();
String where = ContactsContract.Data.DISPLAY_NAME + " = ? ";
String[] params = new String[] {name};
ArrayList<ContentProviderOperation> ops = new ArrayList<ContentProviderOperation>();
ops.add(ContentProviderOperation.newDelete(ContactsContract.RawContacts.CONTENT_URI)
.withSelection(where, params)
.build());
try {
cr.applyBatch(ContactsContract.AUTHORITY, ops);
} catch (RemoteException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (OperationApplicationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Toast.makeText(NativeContentProvider.this, "Deleted the contact with name '" + name +"'", Toast.LENGTH_SHORT).show();
}
}
【问题讨论】：
标签： android android-contacts android-contentprovider