我的活动需要将Android手机通讯录显示在ListView
AddressBook.java
活动中的片段内。我能够让我的列表显示名称,但没有别的。我觉得我很亲密,但很难让观点发挥作用。在我的XML文件中(我有4个),我有活动XML(只有片段),ListView XML(contact_list_view.xml
),然后是ListView的典型行,我称之为Item XML({{ 1}})。但是如何将所有这些视图连接到我的活动视图中?我认为我在活动中有片段OK,因为名单列表有效,但不知道如何获得照片和电子邮件来显示。我知道我的主要代码中也遗漏了一些内容,contacts_list_item.xml
。
一个问题是,我必须按名称过滤我的联系人,否则我手机上每个应用程序中的每封电子邮件都会发布,这不是我想要的。我只希望显示我的Android通讯录应用中的联系人,所以我希望这不会阻止联系人的其他详细信息显示。
下面是我的代码,我没有显示我的ContactFragments.java
活动,因为我只使用XML视图在其中显示我的片段,使用片段标签(工作正常,因为我在至少得到联系人姓名)。
我已经在网上广泛搜索了这个答案,但是有很多部分,我找不到如何解决我的具体情况。我希望使用我已经拥有的代码并进行最低限度的编辑(而不是实现一种全新的方法来实现与其他类的比较等)。如果您有任何想法,我会非常感激。
ContactsFragment.java
AddressBook.java
contact_list_view.xml
package org.azurespot.practiceapp.addressbook;
import android.app.ListFragment;
import android.app.LoaderManager.LoaderCallbacks;
import android.content.ContentUris;
import android.content.CursorLoader;
import android.content.Loader;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.provider.ContactsContract.Contacts;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CursorAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import com.example.practiceapp.R;
/*
* Taken from http://stackoverflow.com/questions/18199359/how-to-display-contacts-in-a-listview-in-android-for-android-api-11
*/
public class ContactsFragment extends ListFragment implements
LoaderCallbacks<Cursor>{
private CursorAdapter mAdapter;
public ListView listView;
public Cursor cursor;
// Name should be displayed in the text1 TextView in item layout
public static final String[] FROM = { ContactsContract.Contacts
.DISPLAY_NAME_PRIMARY };
private static final int[] TO = { android.R.id.text1 };
private android.content.Context context;
public View view;
public static Uri uri;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// delete list if already there (old version)
if (!(listView == null)){
listView.setAdapter(null);
}
// create adapter once
context = getActivity();
int layout = android.R.layout.simple_list_item_1;
Cursor c = null; // there is no cursor yet
int flags = 0; // no auto-requery! Loader requeries.
// put List in adapter
mAdapter = new SimpleCursorAdapter(context, layout, c, FROM, TO, flags);
} // end onCreate
// columns requested from the database
private static final String[] PROJECTION = {
Contacts._ID,
ContactsContract.Contacts.PHOTO_THUMBNAIL_URI,
ContactsContract.Contacts.DISPLAY_NAME_PRIMARY,
ContactsContract.Contacts.HAS_PHONE_NUMBER,
ContactsContract.Contacts.IN_VISIBLE_GROUP
};
// this goes in the CursorLoader parameter list, it filters
// out only those contacts who have a phone number
private static final String SELECTION =
ContactsContract.Contacts.HAS_PHONE_NUMBER + "='1'";
// Empty public constructor, required by the system
public ContactsFragment() {}
// A UI Fragment must inflate its View (all fragments must override onCreateView)
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the fragment layout
View view = inflater.inflate(R.layout.contact_list_view,
container, false);
listView = (ListView) view.findViewById(R.id.list);
// set Contact photo to ImageView
ContactsFragment frag = new ContactsFragment();
ImageView thumb = (ImageView)view.findViewById(R.id.contact_thumbnail);
frag.getPhotoUriFromID(Contacts._ID);
thumb.setImageURI(uri);
return view;
}
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
// and tell loader manager to start loading
getLoaderManager().initLoader(0, null, this);
listView.setAdapter(mAdapter);
listView.setFastScrollEnabled(true);
}
// a CursorLoader does a query in the background
@Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
// load from the "Contacts table"
Uri contentUri = Contacts.CONTENT_URI;
// no sub-selection, no sort order, simply every row
// projection says we want just the _id and the name column
return new CursorLoader(getActivity(),
contentUri,
PROJECTION,
SELECTION,
null,
ContactsContract.Contacts.DISPLAY_NAME
);
}
private Uri getPhotoUriFromID(String id) {
try {
Cursor cur = context.getContentResolver()
.query(ContactsContract.Data.CONTENT_URI,
null,
ContactsContract.Data.CONTACT_ID
+ "="
+ id
+ " AND "
+ ContactsContract.Data.MIMETYPE
+ "='"
+ ContactsContract.CommonDataKinds.Photo.CONTENT_ITEM_TYPE
+ "'", null, null);
if (cur != null) {
if (!cur.moveToFirst()) {
return null; // no photo
}
} else {
return null; // error in cursor process
}
} catch (Exception e) {
e.printStackTrace();
return null;
}
Uri person = ContentUris.withAppendedId(
ContactsContract.Contacts.CONTENT_URI, Long.parseLong(id));
uri = Uri.withAppendedPath(person,
ContactsContract.Contacts.Photo.CONTENT_DIRECTORY);
return uri;
}
@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
// Once cursor is loaded, give it to adapter
mAdapter.swapCursor(data);
}
@Override
public void onLoaderReset(Loader<Cursor> loader) {
// Delete the reference to the existing Cursor,
// so it can recycle it
mAdapter.swapCursor(null);
}
}
contacts_list_item
<?xml version="1.0" encoding="utf-8"?>
<ListView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/list"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</ListView>
答案 0 :(得分:0)
您应该覆盖适配器的getView()方法并创建自定义列表视图以显示图像,名称和电子邮件。
有关详细信息http://www.androidhive.info/2014/07/android-custom-listview-with-image-and-text-using-volley/
,请参阅此链接答案 1 :(得分:0)
假设您的光标正在返回所有相应的数据,看起来您只需要在初始化适配器时调整一些起始值。请尝试更新以下内容:
public static final String[] FROM = { ContactsContract.Contacts.DISPLAY_NAME_PRIMARY, ContactsContract.Contacts.PHOTO_THUMBNAIL_URI };
private static final int[] TO = { R.id.text_name, R.id.contact_thumbnail };
int layout = R.layout.contact_list_item;
这应该让您的适配器同时显示图像和显示名称。由于getView()
支持同时显示SimpleCursorAdapter
和TextView
,因此不需要覆盖Arjun Sna建议的ImageView
方法。如果要添加电子邮件,则需要更新XML以包含另一个TextView
,然后将其关联信息添加到FROM和TO数组中。