MainActivity
public class MainActivity extends ListActivity { // 访问内容提供者时需要的主机名称 public static final String authority = "com.bqt.contentprovider.person"; private TextView tv_info; private ContentResolver resolver; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); String[] array = { "获取所有数据", "插入一条name=bqt的数据", "修改name=bqt的数据", "删除name=bqt的数据", "清空所有数据",// "读取收件箱信息", "往收件箱插入一条信息", "读取手机联系人", "查询\"110\"的联系人信息", "添加一个新的联系人" }; for (int i = 0; i < array.length; i++) { array[i] = i + "、" + array[i]; } ListAdapter mAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, new ArrayList<String>(Arrays.asList(array))); resolver = getContentResolver();// 获取内容解析器 tv_info = new TextView(this);// 将内容显示在TextView中 tv_info.setTextColor(Color.BLUE); tv_info.setTextSize(TypedValue.COMPLEX_UNIT_SP, 16); tv_info.setPadding(20, 10, 20, 10); getListView().addFooterView(tv_info); setListAdapter(mAdapter); } @Override protected void onListItemClick(ListView l, View v, int position, long id) { Uri uri = null; Uri returnUri = null; StringBuffer sb = new StringBuffer(); int num = 0; ContentValues values = new ContentValues();// 要修改或插入的数据 switch (position) { case 0: // 获取所有数据 uri = Uri.parse("content://" + authority + "/query");// 指定解析器要解析的路径。注意query前要加路径分隔符【/】 Log.i("bqt", uri.toString());//【 content://com.bqt.contentprovider.person/query】 Cursor cursor = resolver.query(uri, null, null, null, null);// 获取解析器解析的结果集 if (cursor != null) { while (cursor.moveToNext()) { int uId = cursor.getInt(cursor.getColumnIndex("id"));// 取出需要的内容 String uName = cursor.getString(cursor.getColumnIndex("name")); String uNumber = cursor.getString(cursor.getColumnIndex("number")); sb.append("id:" + uId + " name:" + uName + " number:" + uNumber + "\n"); } tv_info.setText(sb.toString()); cursor.close(); } break; case 1:// 插入一条数据 uri = Uri.parse("content://" + authority + "/insert"); values.put("id", new Random().nextInt(10)); values.put("name", "bqt"); values.put("number", "10086"); returnUri = resolver.insert(uri, values); tv_info.setText("插入信息的uri：" + returnUri.toString()); break; case 2: // 修改一条数据 uri = Uri.parse("content://" + authority + "/update"); values.put("name", "dog"); values.put("number", "10087"); num = resolver.update(uri, values, "name=?", new String[] { "bqt" });// 指定uri，values，Where子句，占位符的值 tv_info.setText("修改信息个数：" + num); break; case 3: // 删除一条数据 uri = Uri.parse("content://" + authority + "/delete"); num = resolver.delete(uri, "name=?", new String[] { "bqt" }); tv_info.setText("删除信息个数：" + num); break; case 4: // 清空，删除所有数据 uri = Uri.parse("content://" + authority + "/delete"); num = resolver.delete(uri, null, null); tv_info.setText("删除信息个数：" + num); break; //****************************************************************************************** case 5: // 读取收件箱信息 readMsgs(); break; case 6: // 往收件箱插入一条信息 insertMsg(); break; case 7: // 读取手机联系人 readContact(); break; case 8: // 查询指定电话的联系人信息 queryContact("110"); break; case 9: // 添加一个新的联系人 writeContact(); break; } }
/** 读取收件箱信息。<uses-permission android:name="android.permission.READ_SMS"/> */ public void readMsgs() { Uri uri = Uri.parse("content://sms/"); ContentResolver resolver = getContentResolver(); //获取的是哪些列的信息 Cursor cursor = resolver.query(uri, new String[] { "address", "date", "type", "body" }, null, null, null); if (cursor != null) { StringBuffer sb = new StringBuffer(); while (cursor.moveToNext()) { sb.append("联系人:" + cursor.getString(cursor.getColumnIndex("address"))); sb.append("\n时间:" + cursor.getString(cursor.getColumnIndex("date"))); sb.append("\n类型:" + cursor.getString(cursor.getColumnIndex("type"))); sb.append("\n内容:" + cursor.getString(cursor.getColumnIndex("body"))); sb.append("\n===============================\n"); } tv_info.setText(sb.toString()); cursor.close(); } } /**读取手机收件箱，返回一个集合*/ public ArrayList<String> getSms() { ArrayList<String> mArrayList = new ArrayList<String>(); ContentResolver resolver = getContentResolver(); Uri uri = Uri.parse("content://sms/"); Cursor cursor = resolver.query(uri, new String[] { "body", "address", "type", "date" }, null, null, null); SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault()); while (cursor.moveToNext()) { String body = "内容：" + cursor.getString(0); String address = "联系人：" + cursor.getString(1); String type = "类型：" + cursor.getString(2);//1是接收到的，2是已发出 ，但是 3 是什么鬼？ String date = "时间：" + formatter.format(new Date(Long.parseLong(cursor.getString(3)))); mArrayList.add(new String(body + "\n" + address + "\n" + type + "\n" + date + "\n\n")); } cursor.close(); return mArrayList; } /** 往收件箱插入一条信息，"android.permission.WRITE_SMS" 。从5.0开始，默认短信应用外的软件不能以写入短信数据库的形式发短信 */ public void insertMsg() { ContentValues values = new ContentValues(); values.put("address", "10086");//联系人 values.put("type", 1);//类型1是"收到"的短信 values.put("date", System.currentTimeMillis());//收到的时间 values.put("body", "您的余额还有1,000,000万元！");//内容 Uri returnUri = resolver.insert(Uri.parse("content://sms"), values); if (returnUri != null) { tv_info.setText(returnUri.toString()); if (returnUri.getPath().equals("/0")) { Toast.makeText(this, "添加失败：" + returnUri.getPath(), Toast.LENGTH_SHORT).show(); } else { Toast.makeText(this, "添加成功：" + returnUri.getPath(), Toast.LENGTH_SHORT).show(); } } }
/** 读取手机联系人 <uses-permission android:name="android.permission.READ_CONTACTS"/> */ public void readContact() { //查询raw_contacts表获得联系人的id ContentResolver resolver = getContentResolver(); Uri uri = ContactsContract.CommonDataKinds.Phone.CONTENT_URI; //查询联系人数据 Cursor cursor = resolver.query(uri, null, null, null, null); if (cursor != null) { StringBuffer sb = new StringBuffer(); while (cursor.moveToNext()) { sb.append("姓名:" + cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME))); sb.append("\n号码:" + cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER))); sb.append("\n===============================\n"); } tv_info.setText(sb.toString()); cursor.close(); } cursor.close(); } /**查询指定电话的联系人信息*/ public void queryContact(String number) { Uri uri = Uri.parse("content://com.android.contacts/data/phones/filter/" + number); ContentResolver resolver = getContentResolver(); Cursor cursor = resolver.query(uri, new String[] { "display_name" }, null, null, null); if (cursor != null) { if (cursor.moveToFirst()) { String name = cursor.getString(0); Toast.makeText(this, number + "对应的联系人名称：" + name, Toast.LENGTH_SHORT).show(); } else { Toast.makeText(this, number + "木有此联系人", Toast.LENGTH_SHORT).show(); } cursor.close(); } } /**读取手机联系人，返回一个集合*/ public List<Map<String, String>> getContacts() { //把所有的联系人保存在List集合中 List<Map<String, String>> list = new ArrayList<Map<String, String>>(); ContentResolver resolver = getContentResolver(); Uri uriId = Uri.parse("content://com.android.contacts/raw_contacts");//id信息 Uri uriData = Uri.parse("content://com.android.contacts/data");//具体的联系人信息 //获取包含id的结果集 Cursor cursor = resolver.query(uriId, new String[] { "contact_id" }, null, null, null); //遍历此包含id的结果集 while (cursor.moveToNext()) { String contact_id = cursor.getString(0); if (contact_id != null) { //将对应此id的所有联系人信息保存在map集合中 Map<String, String> map = new HashMap<String, String>(); Cursor dataCursor = resolver.query(uriData, new String[] { "data1", "mimetype" }, "contact_id=?", new String[] { contact_id }, null); //遍历对应此id的所有联系人信息的结果集 while (dataCursor.moveToNext()) { String data1 = dataCursor.getString(0);//联系人信息 String mimetype = dataCursor.getString(1);//此联系人信息的类型 //若mimetype为联系人的姓名或电话号码，则以相应的格式保存在map集合中 if ("vnd.android.cursor.item/name".equals(mimetype)) map.put("name", data1);//保存姓名 else if ("vnd.android.cursor.item/phone_v2".equals(mimetype)) map.put("phone", data1);//保存电话 } //将map集合中的数据保存在list集合中 list.add(map); dataCursor.close(); } } cursor.close(); return list; } /**添加一个新的联系人。"android.permission.WRITE_CONTACTS" */ public void writeContact() { ContentResolver resolver = getContentResolver(); Uri uri = Uri.parse("content://com.android.contacts/raw_contacts");//保存联系人的id Uri dataUri = Uri.parse("content://com.android.contacts/data");//保存联系人的数据 Cursor cursor = resolver.query(uri, new String[] { "_id" }, null, null, null);// 注意列名是【_id】 if (cursor.moveToLast()) {// 移动到最后一条记录 int lastId = cursor.getInt(0);// 获取最后一条记录【第零列】的值（即id的值） int newId = lastId + 1;// 设定要插入的记录的id值 ContentValues values = new ContentValues(); values.put("contact_id", newId);//插入一条记录 resolver.insert(uri, values);// 向raw_contacts表中插入一条记录 //电话 ContentValues phoneValues = new ContentValues(); phoneValues.put("data1", "110");//向data1表中插入一条指定的值（电话） phoneValues.put("mimetype", "vnd.android.cursor.item/phone_v2");//指定这个值是一个电话类型 phoneValues.put("raw_contact_id", newId);//指定这个值（电话）对应哪个id resolver.insert(dataUri, phoneValues); //emai ContentValues emaiValues = new ContentValues(); emaiValues.put("data1", "[email protected]"); emaiValues.put("mimetype", "vnd.android.cursor.item/email_v2"); emaiValues.put("raw_contact_id", newId); resolver.insert(dataUri, emaiValues); //姓名 ContentValues nameValues = new ContentValues(); nameValues.put("data1", "包青天"); nameValues.put("mimetype", "vnd.android.cursor.item/name"); nameValues.put("raw_contact_id", newId); resolver.insert(dataUri, nameValues); } cursor.close(); Toast.makeText(this, "添加成功", Toast.LENGTH_SHORT).show(); } }
清单文件
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.bqt.contentresolver" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="21" /> <uses-permission android:name="android.permission.READ_SMS" /> <uses-permission android:name="android.permission.WRITE_SMS" /> <uses-permission android:name="android.permission.READ_CONTACTS" /> <uses-permission android:name="android.permission.WRITE_CONTACTS" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <!-- 内容提供者定义的权限 --> <uses-permission android:name="com.bqt.permission" /> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name=".MainActivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
时间： 2025-01-05 12:30:51