android利用ContentResolver访问者获取手机短信信息

 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_message" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" tools:context="com.example.android_25.MessageActivity"> <ListView  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:id="@+id/lv_message"  > </ListView></LinearLayout>

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_xs" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" tools:context="com.example.android_25.XsActivity"><TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/tv_name" /> <TextView  android:layout_width="match_parent"  android:layout_height="wrap_content"  android:id="@+id/tv_telephone"  /></LinearLayout>

public class MessageActivity extends AppCompatActivity { private ListView lv_message; private ContentResolver cr; private ArrayList<Map<String, Object>> datalistView; @Override protected void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.activity_message);  //获得短信的ID  lv_message = (ListView) findViewById(R.id.lv_message);  //得到访问者ContentResolver  cr = getContentResolver();  //定义一个接收短信的集合  datalistView = new ArrayList<>();  Uri uri = Uri.parse("content://sms/");  Cursor cursor = cr.query(uri, null, null, null, null);  while (cursor.moveToNext()) {   String body = cursor.getString(cursor.getColumnIndex("body"));   int address = cursor.getInt(cursor.getColumnIndex("address"));   //将号码和短信内容放入Map集合中   Map<String, Object> map = new HashMap<>();   map.put("images", address+"");   map.put("titles", body);   datalistView.add(map);  }  SimpleAdapter adapter = new SimpleAdapter(this, datalistView, R.layout.activity_xs, new String[]{"images", "titles"}, new int[]{R.id.tv_name, R.id.tv_telephone});  lv_message.setAdapter(adapter); }}