我正在尝试频繁调用列表。 CONTENT_STREQUENT_URI为您提供星标和频繁，我只是经常想要。 知道我为什么会收到错误吗？
代码：
String selection = Contacts.STARRED + "=?";
String[] selectionArgs = new String[1];
selectionArgs[0] = "0";
Cursor c = this.getContentResolver (). query (Contacts.CONTENT_STREQUENT_URI,
null, selection, selectionArgs,null);
if (c != null) {
c.moveToFirst();
do {
System.out.println(" " + c);
}while (c.moveToNext());
}
目录下载：
11-12 10:13:36.615: E/AndroidRuntime(25592): FATAL EXCEPTION: main
11-12 10:13:36.615: E/AndroidRuntime(25592): Process: com.hanstiger.android.pric, PID: 25592
11-12 10:13:36.615: E/AndroidRuntime(25592): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.hanstiger.android.pric/com.hanstiger.android.pric.setting.Setting}: java.lang.IllegalArgumentException: Cannot bind argument at index 2 because the index is out of range. The statement has 1 parameters.
11-12 10:13:36.615: E/AndroidRuntime(25592): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2224)
11-12 10:13:36.615: E/AndroidRuntime(25592): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2283)
11-12 10:13:36.615: E/AndroidRuntime(25592): at android.app.ActivityThread.access$800(ActivityThread.java:144)
11-12 10:13:36.615: E/AndroidRuntime(25592): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1205)
11-12 10:13:36.615: E/AndroidRuntime(25592): at android.os.Handler.dispatchMessage(Handler.java:102)
11-12 10:13:36.615: E/AndroidRuntime(25592): at android.os.Looper.loop(Looper.java:136)
11-12 10:13:36.615: E/AndroidRuntime(25592): at android.app.ActivityThread.main(ActivityThread.java:5153)
11-12 10:13:36.615: E/AndroidRuntime(25592): at java.lang.reflect.Method.invokeNative(Native Method)
11-12 10:13:36.615: E/AndroidRuntime(25592): at java.lang.reflect.Method.invoke(Method.java:515)
11-12 10:13:36.615: E/AndroidRuntime(25592): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:732)
11-12 10:13:36.615: E/AndroidRuntime(25592): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:566)
11-12 10:13:36.615: E/AndroidRuntime(25592): at dalvik.system.NativeStart.main(Native Method)
11-12 10:13:36.615: E/AndroidRuntime(25592): Caused by: java.lang.IllegalArgumentException: Cannot bind argument at index 2 because the index is out of range. The statement has 1 parameters.
11-12 10:13:36.615: E/AndroidRuntime(25592): at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:167)
11-12 10:13:36.615: E/AndroidRuntime(25592): at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:137)
11-12 10:13:36.615: E/AndroidRuntime(25592): at android.content.ContentProviderProxy.query(ContentProviderNative.java:420)
11-12 10:13:36.615: E/AndroidRuntime(25592): at android.content.ContentResolver.query(ContentResolver.java:461)
11-12 10:13:36.615: E/AndroidRuntime(25592): at android.content.ContentResolver.query(ContentResolver.java:404)
11-12 10:13:36.615: E/AndroidRuntime(25592): at com.hanstiger.android.pric.setting.Setting.onCreate(Setting.java:62)
11-12 10:13:36.615: E/AndroidRuntime(25592): at android.app.Activity.performCreate(Activity.java:5322)
11-12 10:13:36.615: E/AndroidRuntime(25592): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
11-12 10:13:36.615: E/AndroidRuntime(25592): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2181)
答案 0 :(得分：0)
第1步：创建活动
public class MainActivity extends Activity {
ListView outputText;
List<String> userName;
Map<String, String> userNamePhno;
Map<String, String> userNameEmail;
StringBuffer output;
CustomAdapter adapter;
Dialog dialogDetails;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
outputText = (ListView) findViewById(R.id.listview);
userNameEmail = new HashMap<String, String>();
userNamePhno = new HashMap<String, String>();
userName = new ArrayList<String>();
new getContacts().execute();
outputText.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
String[] details = new String[] { userName.get(arg2),
userNamePhno.get(userName.get(arg2)),
userNameEmail.get(userName.get(arg2)) };
dialogDetails = new Dialog(MainActivity.this);
dialogDetails.setContentView(R.layout.contact_details);
dialogDetails.setTitle("Details");
dialogDetails.show();
TextView tvName = (TextView) dialogDetails.findViewById(R.id.name);
TextView tvNumber = (TextView) dialogDetails.findViewById(R.id.phno);
TextView tvEmail = (TextView) dialogDetails.findViewById(R.id.email);
if (details[1]==null)
{
tvName.setText(details[0]);
tvNumber.setText("-");
tvEmail.setText(details[2]);
}
else if (details[2]==null)
{
tvName.setText(details[0]);
tvNumber.setText(details[1]);
tvEmail.setText("-");
}
else if (details[2]==null && details[1]==null)
{
tvName.setText(details[0]);
tvNumber.setText("-");
tvEmail.setText("-");
}
else
{
tvName.setText(details[0]);
tvNumber.setText(details[1]);
tvEmail.setText(details[2]);
}
}
});
}
public class getContacts extends AsyncTask<Void, Void, Void> {
ProgressDialog dialog;
@Override
protected void onPreExecute() {
dialog = new ProgressDialog(MainActivity.this);
dialog.setCancelable(false);
dialog.setMessage("Wait please");
dialog.show();
}
@Override
protected Void doInBackground(Void... params) {
fetchContacts();
return null;
}
@Override
protected void onPostExecute(Void result) {
dialog.dismiss();
dialog.setCancelable(true);
adapter = new CustomAdapter(MainActivity.this, userName,
userNamePhno);
outputText.setAdapter(adapter);
}
}
private void fetchContacts() {
String phoneNumber = null;
String email = null;
Uri CONTENT_URI = ContactsContract.Contacts.CONTENT_URI;
String _ID = ContactsContract.Contacts._ID;
String DISPLAY_NAME = ContactsContract.Contacts.DISPLAY_NAME;
String HAS_PHONE_NUMBER = ContactsContract.Contacts.HAS_PHONE_NUMBER;
Uri PhoneCONTENT_URI = ContactsContract.CommonDataKinds.Phone.CONTENT_URI;
String Phone_CONTACT_ID = ContactsContract.CommonDataKinds.Phone.CONTACT_ID;
String NUMBER = ContactsContract.CommonDataKinds.Phone.NUMBER;
Uri EmailCONTENT_URI = ContactsContract.CommonDataKinds.Email.CONTENT_URI;
String EmailCONTACT_ID = ContactsContract.CommonDataKinds.Email.CONTACT_ID;
String DATA = ContactsContract.CommonDataKinds.Email.DATA;
output = new StringBuffer();
ContentResolver contentResolver = getContentResolver();
Cursor cursor = contentResolver.query(CONTENT_URI, null, null, null,
null);
if (cursor.getCount() > 0) {
while (cursor.moveToNext()) {
String contact_id = cursor
.getString(cursor.getColumnIndex(_ID));
String name = cursor.getString(cursor
.getColumnIndex(DISPLAY_NAME));
int hasPhoneNumber = Integer.parseInt(cursor.getString(cursor
.getColumnIndex(HAS_PHONE_NUMBER)));
if (hasPhoneNumber > 0) {
output.append("\n First Name:" + name);
userName.add(name);
// Query and loop for every phone number of the contact
Cursor phoneCursor = contentResolver.query(
PhoneCONTENT_URI, null, Phone_CONTACT_ID + " = ?",
new String[] { contact_id }, null);
while (phoneCursor.moveToNext()) {
phoneNumber = phoneCursor.getString(phoneCursor
.getColumnIndex(NUMBER));
output.append("\n Phone number:" + phoneNumber);
// userPhoneNumber.add(phoneNumber);
userNamePhno.put(name, phoneNumber);
}
phoneCursor.close();
// Query and loop for every email of the contact
Cursor emailCursor = contentResolver.query(
EmailCONTENT_URI, null, EmailCONTACT_ID + " = ?",
new String[] { contact_id }, null);
while (emailCursor.moveToNext()) {
email = emailCursor.getString(emailCursor
.getColumnIndex(DATA));
output.append("\nEmail:" + email);
// userEmailAddress.add(email);
userNameEmail.put(name, email);
}
emailCursor.close();
}
output.append("\n");
}
// outputText.setText(output);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
第2步：创建适配器
public class CustomAdapter extends ArrayAdapter<String> {
private Activity context;
private List<String> userName;
private Map<String, String> userNamePhno;
/*private List<String> userPhoneNumber;
private List<String> userEmailAddress;*/
public CustomAdapter(MainActivity mainActivity, List<String> userName, Map<String, String> userNamePhno) {
super(mainActivity, R.layout.list_row, userName);
this.context=mainActivity;
this.userName = userName;
this.userNamePhno=userNamePhno;
/*this.userPhoneNumber = userPhoneNumber;
this.userEmailAddress = userEmailAddress;*/
}
static class ViewHolder {
public TextView userName;
public TextView userNumber;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View vi = convertView;
if(vi == null){
LayoutInflater inflater = context.getLayoutInflater();
vi = inflater.inflate(R.layout.list_row, null);
ViewHolder holder = new ViewHolder();
holder.userName=(TextView) vi.findViewById(R.id.contact_name);
holder.userNumber=(TextView) vi.findViewById(R.id.contact_number);
vi.setTag(holder);
}
ViewHolder holder = (ViewHolder) vi.getTag();
holder.userName.setText("Name: "+userName.get(position).toUpperCase());
holder.userNumber.setText("Ph No: "+userNamePhno.get(userName.get(position)));
return vi;
}
}
如有任何疑问，请随时询问。