要取得通讯录里的数据,则是使用ContentResolver对象(content),以content.query的方式取出所有通讯录里的联系人,并以Cursor的方式取得其存储内容(电话、姓名等)。在SDK2.1之后的联系人设置,可有多组电话"类型"与"电话",所使用的类对象为android.provider. Contacts,写法与前几版SDK有很大差别。最后设计AutoCompleteTextView. OnItemClickListener事件,这也是当User单击联系人姓名之后,所拦截的事件处理,在其中便以Contacts- Adapter.getCursor()方法取得联系人的电话号码。
Java代码:
import android.content.ContentResolver; import android.database.Cursor; import android.provider.ContactsContract; import android.widget.AdapterView; import android.widget.AutoCompleteTextView; public class EX05_09 extends Activity { private AutoCompleteTextView myAutoCompleteTextView; private TextView myTextView1; private Cursor contactCursor; private ContactsAdapter myContactsAdapter; /* 要捞出通讯录的字段 */ public static final String[] PEOPLE_PROJECTION = new String[] { ContactsContract.Contacts._ID, ContactsContract.CommonDataKinds.Phone.NUMBER, ContactsContract.Contacts.DISPLAY_NAME }; /* * Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); myAutoCompleteTextView = (AutoCompleteTextView) findViewById(R.id.myAutoCompleteTextView); myTextView1 = (TextView) findViewById(R.id.myTextView1); /* 取得ContentResolver */ ContentResolver content = getContentResolver(); /* 取得通讯录的Cursor */ contactCursor = content.query ( ContactsContract.CommonDataKinds.Phone.CONTENT_URI, PEOPLE_PROJECTION, null, null, "" ); /* 将Cursor传入自己实现的ContactsAdapter */ myContactsAdapter = new ContactsAdapter(this, contactCursor); myAutoCompleteTextView.setAdapter(myContactsAdapter); myAutoCompleteTextView.setOnItemClickListener ( new AdapterView.OnItemClickListener() { @Override public void onItemClick (AdapterView<?> arg0, View arg1, int arg2, long arg3) { /* 取得Cursor */ Cursor c = myContactsAdapter.getCursor(); /* 移到所点击的位置 */ c.moveToPosition(arg2); String number = c.getString ( c.getColumnIndexOrThrow (ContactsContract.CommonDataKinds.Phone.NUMBER) ); /* 当找不到电话时显示无输入电话 */ numbernumber = number == null ? "无输入电话" : number; myTextView1.setText ( c.getString ( c.getColumnIndexOrThrow (ContactsContract.Contacts.DISPLAY_NAME) )+ "的电话是" + number ); } } ); } }
import android.content.ContentResolver; import android.database.Cursor; import android.provider.ContactsContract; public class ContactsAdapter extends CursorAdapter { private ContentResolver mContent; public ContactsAdapter(Context context, Cursor c) { super(context, c); mContent = context.getContentResolver(); } @Override public void bindView(View view, Context context, Cursor cursor) { /* 取得通讯录人员的名字 */ ((TextView) view).setText ( cursor.getString ( cursor.getColumnIndexOrThrow (ContactsContract.Contacts.DISPLAY_NAME) ) ); } @Override public View newView(Context context, Cursor cursor, ViewGroup parent) { final LayoutInflater inflater = LayoutInflater.from(context); final TextView view = (TextView)inflater.inflate (android.R.layout.simple_dropdown_item_1line, parent, false); view.setText ( cursor.getString ( cursor.getColumnIndexOrThrow (ContactsContract.Contacts.DISPLAY_NAME) ) ); return view; } @Override public String convertToString(Cursor cursor) { return cursor.getString ( cursor.getColumnIndexOrThrow (ContactsContract.Contacts.DISPLAY_NAME) ); } @Override public Cursor runQueryOnBackgroundThread(CharSequence constraint) { if (getFilterQueryProvider() != null) { return getFilterQueryProvider().runQuery(constraint); } StringBuilder buffer = null; String[] args = null; if (constraint != null) { buffer = new StringBuilder(); buffer.append("UPPER("); buffer.append(ContactsContract.Contacts.DISPLAY_NAME); buffer.append(") GLOB ?"); args = new String[] { constraint.toString().toUpperCase() + "*" }; } return mContent.query ( ContactsContract.CommonDataKinds.Phone.CONTENT_URI, EX05_09.PEOPLE_PROJECTION, buffer == null ? null : buffer.toString(), args, "" ); } }
<uses-permission android:name="android.permission.READ_CONTACTS"> </uses-permission>