选择联系人时强制关闭

Question

我制作了一个应用程序，我希望用户在其中从联系人中选择联系人并在列表中显示选定的联系人姓名。因此，我使用了意图。但是当用户选择联系人时，应用程序强制关闭.??

代码

intent = new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI);
        intent.setType(ContactsContract.CommonDataKinds.Phone.CONTENT_TYPE);
        startActivityForResult(intent, 1);

public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (resultCode == getActivity().RESULT_OK) {
            Uri contactData = data.getData();
            Cursor c = getActivity().getContentResolver().query(contactData, null, null, null, null);
            if (c.moveToFirst()) {
                String id = c.getString(c.getColumnIndexOrThrow(ContactsContract.Contacts._ID));
                String number = c.getString(c.getColumnIndexOrThrow(ContactsContract.Contacts.HAS_PHONE_NUMBER));
                if (number.equalsIgnoreCase("1")) {
                    Cursor phones = getActivity().getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,
                            ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = " + id, null, null);
                    phones.moveToFirst();
                    String contactNumber = phones.getString(phones.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
                    contacts.add(contactNumber);
                    contactListAdapter = new ContactListAdapter(getActivity(), contacts);
                    lvContact.setAdapter(contactListAdapter);


                }
            }

Logcat

07-31 12:52:07.469  29788-29788/example.com.pocketdocs E/AndroidRuntime﹕ FATAL EXCEPTION: main
    java.lang.RuntimeException: Failure delivering result ResultInfo{who=android:fragment:0, request=1, result=-1, data=Intent { dat=content://com.android.contacts/data/2636 }} to activity {example.com.pocketdocs/example.com.pocketdocs.MainActivity.MainActivity}: android.database.CursorIndexOutOfBoundsException: Index 0 requested, with a size of 0
            at android.app.ActivityThread.deliverResults(ActivityThread.java:3162)
            at android.app.ActivityThread.handleSendResult(ActivityThread.java:3205)
            at android.app.ActivityThread.access$1100(ActivityThread.java:138)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1255)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:213)
            at android.app.ActivityThread.main(ActivityThread.java:4787)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:556)
            at dalvik.system.NativeStart.main(Native Method)
     Caused by: android.database.CursorIndexOutOfBoundsException: Index 0 requested, with a size of 0
            at android.database.AbstractCursor.checkPosition(AbstractCursor.java:418)
            at android.database.AbstractWindowedCursor.checkPosition(AbstractWindowedCursor.java:136)
            at android.database.AbstractWindowedCursor.getString(AbstractWindowedCursor.java:50)
            at android.database.CursorWrapper.getString(CursorWrapper.java:114)
            at example.com.pocketdocs.Group.CreatNewGroup.onActivityResult(CreatNewGroup.java:74)
            at android.app.Activity.dispatchActivityResult(Activity.java:5196)
            at android.app.ActivityThread.deliverResults(ActivityThread.java:3158)
            at android.app.ActivityThread.handleSendResult(ActivityThread.java:3205)
            at android.app.ActivityThread.access$1100(ActivityThread.java:138)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1255)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:213)
            at android.app.ActivityThread.main(ActivityThread.java:4787)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:556)
            at dalvik.system.NativeStart.main(Native Method)

我只有当用户看到有数字的联系人时，我才想要 fb 和 google 联系人。

Answer 1

我相信您的手机光标是空的。尝试检查：

if(phones.moveToFirst()) {
        String contactNumber = phones.getString(phones.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
        contacts.add(contactNumber);
        contactListAdapter = new ContactListAdapter(getActivity(), contacts);
        lvContact.setAdapter(contactListAdapter);
}