获取从列表视图中选择的联系人的详细信息

Question

我正在设计应用程序，我希望允许用户选择多个联系人来向其发送消息。我已经使用以下代码成功检索了带有复选框的列表视图中的用户列表。现在我希望当用户单击“完成”按钮时，所有选定联系人的 PHONE NUMBER 应在 EDITTEXT 中以 John 、Rick 并且所有包含仅10位数字即“9898xxxxxx”的电话号码应自动存储在以逗号分隔的字符串中（9898xxxxxx，9988xxxxxx）。我怎样才能完成要求。

public class ContactsActivity extends ListActivity {

protected static final String TAG = null;
public String[] Contacts = {};
public int[] to = {};
public ListView myListView;


@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_contacts);
    final Button done_Button = (Button) findViewById(R.id.done_Button);
    final Button clear_Button =(Button) findViewById(R.id.clear_Button);
    Cursor mCursor = getContacts();
    startManagingCursor(mCursor);
    ListAdapter adapter = new SimpleCursorAdapter(this, android.R.layout.simple_list_item_multiple_choice, mCursor,
            Contacts = new String[] {ContactsContract.Contacts.DISPLAY_NAME },
            to = new int[] { android.R.id.text1 });
    setListAdapter(adapter);
    myListView = getListView();
    myListView.setItemsCanFocus(false);
    myListView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
    clear_Button.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            Toast.makeText(getApplicationContext(),"Selections Cleared", Toast.LENGTH_SHORT).show();
            ClearSelections();
        }
    });

    /** When 'Done' Button Pushed: **/
    done_Button.setOnClickListener(new View.OnClickListener() {
        public void onClick (View v){
            Log.i(TAG,":Done Button Selected:");
            SparseBooleanArray selectedPositions = myListView.getCheckedItemPositions();
            Log.i(TAG,"Number of Checked Positions: " + selectedPositions.size());
            for (int i=0; i<selectedPositions.size(); i++) {
                if (selectedPositions.get(selectedPositions.keyAt(i)) == true) {
                    //do stuff

                }
            }
        }
    });
}

private void ClearSelections() {
    int count = this.myListView.getAdapter().getCount();
    for (int i = 0; i < count; i++) {
        this.myListView.setItemChecked(i, false);
    }
}

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.HAS_PHONE_NUMBER + " = '"
            + ("1") + "'";
    String[] selectionArgs = null;
    String sortOrder = ContactsContract.Contacts.DISPLAY_NAME
            + " COLLATE LOCALIZED ASC";

    return managedQuery(uri, projection, selection, selectionArgs,
            sortOrder);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.activity_contacts, menu);
    return true;
}
}

Answer 1

终于配置好了

        done_Button.setOnClickListener(new View.OnClickListener() {
        public void onClick (View v){
            String name = null;
            String number = null;
            long [] ids = myListView.getCheckedItemIds();
            for(long id : ids) {
                Cursor contact = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, 
                        ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?", new String[] { id + "" }, null);
                while(contact.moveToNext()){
                    name = contact.getString(contact.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
                    //name+=name;
                    number = contact.getString(contact.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
                    //number+=number;
                }
                Toast.makeText(getApplicationContext(), "Name: " +name + "\n" + "Number: " + number , Toast.LENGTH_LONG).show();
            }
        }
    });

Answer 2

String numberListString = "";

for (int i=0; i<selectedPositions.size(); i++) {
                if (selectedPositions.get(selectedPositions.keyAt(i)) == true) {
                    //do stuff
                    numberListString  = numberListString + "," + numberAtCurrentSelectedPostion;

                }
            }

mEditText.setText(numberListString);

Answer 3

按下完成按钮试试这个：-

done_Button.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            name.clear();
            number.clear();
            Log.i(TAG, ":Done Button Selected:");
            SparseBooleanArray selectedPositions = myListView
                    .getCheckedItemPositions();
            Log.i(TAG,
                    "Number of Checked Positions: "
                            + selectedPositions.size());
            Cursor cur = getContacts();
            for (int i = 0; i < selectedPositions.size(); i++) {
                if (selectedPositions.get(selectedPositions.keyAt(i)) == true) {
                    // do stuff
                    cur.moveToPosition(selectedPositions.keyAt(i));
                    name.add(cur.getString(1));
                }
            }
            for (int i = 0; i < name.size(); i++) {
                Cursor lCursor = getContentResolver().query(
                        ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                        null, "DISPLAY_NAME = ? ",
                        new String[] { name.get(i) }, null);
                lCursor.moveToFirst();
                number.add(lCursor.getString(lCursor
                        .getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)));
                lCursor.close();
            }

        }
    });

其中 name 和 number 是 String 类型的数组列表。您将获得所有选定的名称和数字。现在您可以在 Edit Text 中随意显示它们了。

我想这会对你有所帮助。