请问android怎么获取电话联系人列表，我这样写错在哪 ？
private ReadNameAndNum rnan;
private Thread t1 ;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
callView=View.inflate(this, R.layout.call, null);
callViewLayer=new LockUtil(this);
callViewLayer.setLockView(callView);
callViewLayer.lock();
callView.findViewById(R.id.callBack).setOnClickListener(this);
rnan=new ReadNameAndNum();
t1=new Thread(rnan);
t1.start();
}
class ReadNameAndNum implements Runnable{
ContentResolver cr= getContentResolver();
Cursor c=cr.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
@Override
public void run() {
System.out.println(">>>>>RUN");
while (c.moveToNext()) {
int nameFieldColumnIndex= c.getColumnIndex(PhoneLookup.DISPLAY_NAME);
String contact=c.getString(nameFieldColumnIndex);
int numberFieldColumnIndex=c.getColumnIndex(PhoneLookup.NUMBER);
String number=c.getString(numberFieldColumnIndex);
System.out.println(">>>>>"+contact+">>>>"+number);
}
c.close();
}} 20:35.177: I/System.out(19335): >>>>>onStart
03-06 13:20:35.177: I/System.out(19335): >>>>>onResume
03-06 13:20:37.027: I/System.out(19335): >>>>CallClick
03-06 13:20:57.297: W/ServiceManager(19335): Permission failure: android.p ermission.READ_CONTACTS from uid=10104 pid=19335
03-06 13:20:57.297: E/CheckPermission(19335): Permission Denial: can't read contacts pid=19335, uid=10104
03-06 13:20:57.307: I/System.out(19335): >>>>>CAllonStart
03-06 13:20:57.307: I/System.out(19335): >>>>>CAllonResume
03-06 13:20:57.317: I/System.out(19335): >>>>>RUN
03-06 13:20:57.317: W/dalvikvm(19335): threadid=16: thread exiting with uncaught exception (group=0x41697898)
03-06 13:20:57.327: E/AndroidRuntime(19335): FATAL EXCEPTION: Thread-1466
03-06 13:20:57.327: E/AndroidRuntime(19335): java.lang.NullPointerException
03-06 13:20:57.327: E/AndroidRuntime(19335): at com.example.deng_00_lock.AtyCall$ReadNameAndNum.run(AtyCall.java:42)
03-06 13:20:57.327: E/AndroidRuntime(19335): at java.lang.Thread.run(Thread.java:841)
03-06 13:20:57.397: I/Choreographer(19335): Skipped 1207 frames! The application may be doing too much work on its main thread.
读取权限我也加了，但仍不成功，这里我开了一个线程
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private static String uri_rawcontacts = "content://com.android.contacts/raw_contacts"; private static String uri_contacts_phones = "content://com.android.contacts/data/phones"; private static String uri_contacts_emails = "content://com.android.contacts/data/emails"; private String uri_contacts_data = "content://com.android.contacts/data"; // 查询联系人的信息 public static List<Map<String, Object>> selectContactsInfo( ContentResolver resolver) { List<Map<String, Object>> list = new ArrayList<Map<String, Object>>(); Cursor contactsCursor = resolver.query(Uri.parse(uri_rawcontacts), new String[] { "_id", "display_name" }, null, null, null); while (contactsCursor.moveToNext()) { Map<String, Object> map = new HashMap<String, Object>(); int contactsId = contactsCursor.getInt(contactsCursor .getColumnIndex("_id")); String displayName = contactsCursor.getString(contactsCursor .getColumnIndex("display_name")); map.put("_id", contactsId); map.put("display_name", displayName); // 根据联系人的id去data表获取电话号码的信息 Cursor phoneCursor = resolver.query(Uri.parse(uri_contacts_phones), new String[] { "raw_contact_id", "data1" }, "raw_contact_id=?", new String[] { contactsId + "" }, null); StringBuilder sb = new StringBuilder(); while (phoneCursor.moveToNext()) { sb.append(phoneCursor.getString(1)); sb.append("|"); } map.put("phones", sb.toString()); if (phoneCursor != null) { phoneCursor.close(); } // 根据联系人的id去data表获取email的信息 Cursor emailCursor = resolver.query(Uri.parse(uri_contacts_emails), new String[] { "raw_contact_id", "data1" }, "raw_contact_id=?", new String[] { contactsId + "" }, null); StringBuilder sb2 = new StringBuilder(); while (emailCursor.moveToNext()) { sb2.append(emailCursor.getString(1)); sb2.append("|"); } map.put("emails", sb2.toString()); if (emailCursor != null) { emailCursor.close(); } list.add(map); } if (contactsCursor != null) { contactsCursor.close(); } return list; }2019-07-17 19:00:05赞同 展开评论
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