我正在开发android平台上的Contact base应用程序，我想将CONTACT手机应用程序的所有数据写入或保存到我自己的Sqlite数据库中，这样我就可以添加其他功能了，
这是我的源代码：
package com.webpreneur_contactlist;
import android.app.ListActivity;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.support.v4.widget.SimpleCursorAdapter;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.Toast;
public class WebpreneurActivity extends ListActivity {
private static final int CONTACT_CREATE = 0;
private static final int CONTACT_EDIT = 1;
public static long id1;
//select the second one, Android view menu
private static final int INSERT_ID = Menu.FIRST;
private static final int DELETE_ID = Menu.FIRST + 1;
private DBHandler dbHelper;
private Cursor c;
ImageButton imageButton;
public static long rowId;
@Override
protected void onCreate(Bundle savedInstanceState) {
Log.d("database1" ,"0");
Log.d("Your Location4", "ok4:");
super.onCreate(savedInstanceState);
Log.d("database1" ,"1");
setContentView(R.layout.activity_webpreneur);
Log.d("database1" ,"2");
dbHelper = new DBHandler(this);
Log.d("database1" ,"3");
dbHelper.open();
fillData();
//dbHelper.open();
//addListenerOnButton();
//dbHelper.addContact();
imageButton = (ImageButton) findViewById(R.id.imageButton1);
Log.d("database1" ,"button");
imageButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
Log.d("database1" ,"b4");
Intent i = new Intent(getApplicationContext(), ContactEdit.class);
startActivityForResult(i, CONTACT_CREATE);
Log.d("database1" ,"button3");
//fillData();
}
});
//dbHelper.close();
}
@SuppressWarnings("deprecation")
public void fillData() {
Log.d("Your Location4", "ok6:");
c = dbHelper.fetchAllRows();
Log.d("Your Location4", "ok8:");
//startManagingCursor(c);
Log.d("Your Location4", "ok2:");
NoIdCursorWrapper nc = new NoIdCursorWrapper(c, DBHandler.Key_ID);
ListAdapter adapter = new SimpleCursorAdapter(this,
R.layout.contact_row, nc, new String[] { DBHandler.Key_Name,
DBHandler.Key_Phone }, new int[] { R.id.name,
R.id.phonenumber });
setListAdapter(adapter);
}
protected void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
Intent i = new Intent(this, ContactEdit.class);
i.putExtra(DBHandler.Key_ID, c.getLong(c.getColumnIndex(DBHandler.Key_ID)));
i.putExtra(DBHandler.Key_Name, c.getString(c.getColumnIndex(DBHandler.Key_Name)));
i.putExtra(DBHandler.Key_Address, c.getString(c.getColumnIndex(DBHandler.Key_Address)));
i.putExtra(DBHandler.Key_Phone, c.getString(c.getColumnIndex(DBHandler.Key_Phone)));
i.putExtra(DBHandler.Key_Website, c.getString(c.getColumnIndex(DBHandler.Key_Home)));
startActivityForResult(i, CONTACT_EDIT);
}
protected void onActivityResult(int requestCode, int resultCode,
Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
String name = data.getStringExtra(DBHandler.Key_Name);
String address = data.getStringExtra(DBHandler.Key_Address);
String mobile = data.getStringExtra(DBHandler.Key_Phone);
String home = data.getStringExtra(DBHandler.Key_Home);
//String id = data.getStringExtra(DBHandler.Key_ID);
switch (requestCode) {
case CONTACT_CREATE:
Log.d("Your Location4", "jj:");
dbHelper.createRow(name, address, mobile, home);
Log.d("Your Location4" , "ok90:");
fillData();
break;
case CONTACT_EDIT:
//String id = data.getStringExtra(DBHandler.Key_ID);
//long rowId=Long.parseLong(DBHandler.Key_ID); ////Giving null pointer exception at this point
long rowId=data.getLongExtra(DBHandler.Key_ID, 0);
Log.d("Your Location4" , "ok9b:");
if (rowId != 0){
dbHelper.updateRow(rowId, name, address, mobile, home);
}
fillData();
break;
}
}
}
}
答案 0 :(得分：3)
班级：
Uri uri;
String[] projection;
String where;
String[] selectionArgs;
onCreate :(存在生日记录的注释条款）
uri = ContactsContract.Data.CONTENT_URI; // Set the URI for Query of Contacts database
//==================================================================
//Projection String Array (Fields we are interested in capturing)
//==================================================================
projection = new String[] { ContactsContract.Contacts.DISPLAY_NAME,
ContactsContract.CommonDataKinds.Phone.NUMBER,
ContactsContract.CommonDataKinds.Event.CONTACT_ID,
ContactsContract.CommonDataKinds.Event.START_DATE,
ContactsContract.CommonDataKinds.Email.DATA,
ContactsContract.Contacts.HAS_PHONE_NUMBER,
ContactsContract.CommonDataKinds.Phone.NUMBER
};
//==================================================================
//Where Clause for the Database Query
//==================================================================
where = ContactsContract.Data.MIMETYPE + "= ? AND "
+ ContactsContract.CommonDataKinds.Event.TYPE + "="
+ ContactsContract.CommonDataKinds.Event.TYPE_BIRTHDAY;
// Easy? Selection args
selectionArgs = new String[] { ContactsContract.CommonDataKinds.Event.CONTENT_ITEM_TYPE };
getLoaderManager().initLoader(0, null, this); //Loader init
在onCreate之外：
@Override
public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) {
CursorLoader loader = new CursorLoader(this, uri, projection, where,
selectionArgs, null);
return loader;
}
// @SuppressWarnings("unchecked")
@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
Map<String, List<String>> BD = new HashMap<String, List<String>>();
if(cursor !=null){
while (cursor.moveToNext()) {
List<String> li = new ArrayList<String>();
contactId = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Event.CONTACT_ID));
li.add(contactId);
String displayBirthday = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Event.START_DATE));
//==================================================================
// Handle the curious case of Date without Year
//==================================================================
if(displayBirthday.length()<8){
displayBirthday = displayBirthday.replace("--", "0001-");
}
//==================================================================
String name = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
li.add(displayBirthday);
Uri phUri = Uri.withAppendedPath(ContactsContract.Contacts.CONTENT_URI,String.valueOf(contactId));
String Ur = String.valueOf(phUri);
li.add(Ur);
String DateStr = displayBirthday;
Date d = null;
try {
d = new SimpleDateFormat("yyyy-MM-dd"/*, current*/).parse(DateStr);
} catch (ParseException e) {
e.printStackTrace();
}
java.sql.Date d1 = new java.sql.Date(d.getTime());
BD.put(name, li);
li = null;
}
BD是带有记录的Hashmap，将其写入数据库。