public class MainActivity extends Activity {
    private Button button;
    private OnClickListener listener = new OnClickListener(){

        @Override
        public void onClick(View v) {
            ContentResolver resolver = MainActivity.this.getContentResolver();
            Uri uri = Uri.parse("content://com.example.test/person");
            PersonObserver observer=new PersonObserver(new Handler());
            resolver.registerContentObserver(uri, true,observer);
            ContentValues values = new ContentValues();
            values.put("name", "zzz");
            values.put("cid", 1);
            resolver.insert(uri, values);   //向ContentProvider插入数据  
            resolver.unregisterContentObserver(observer);
        }
    };

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button = (Button)this.findViewById(R.id.button1);
        button.setOnClickListener(listener);
    }
    private class PersonObserver extends ContentObserver{//监听  
        public PersonObserver(Handler handler) {
            super(handler);
        }
        //当ContentProvier数据发生改变，则触发该函数  
        @Override
        public void onChange(boolean selfChange) {
            super.onChange(selfChange);
            Log.i("Test1", "数据改变");
        }
    }
}

public class PersonProvider extends ContentProvider {
  private ItemDatabaseHelper helper;
  private SQLiteDatabase db;
//   private UriMatcher matcher = new UriMatcher(UriMatcher.NO_MATCH);

  @Override
  public boolean onCreate() {
      helper = new ItemDatabaseHelper(this.getContext());
//       matcher.addURI("com.example.test", "person", 1);
      return true;
  }

  @Override
  public Cursor query(Uri uri, String[] projection, String selection,
          String[] selectionArgs, String sortOrder) {
      return null;
  }

  /*
  * 如果操作集合，则必须以vnd.android.cursor.dir开头 如果操作非集合，则必须以vnd.android.cursor.item开头
  */
  @Override
  public String getType(Uri uri) {
      return "";
  }

  @Override
  public Uri insert(Uri uri, ContentValues values) {
      db = helper.getWritableDatabase();
          long rowid = db.insert("person", null, values);
          this.getContext().getContentResolver().notifyChange(uri, null);// 如果改变数据，则通知所有人
          return ContentUris.withAppendedId(uri, rowid); // 返回插入的记录所代表的URI
  }

  @Override
  public int delete(Uri uri, String selection, String[] selectionArgs) {
      return 0;
  }

  @Override
  public int update(Uri uri, ContentValues values, String selection,
          String[] selectionArgs) {
      return 0;
  }

  private static class ItemDatabaseHelper extends SQLiteOpenHelper {

      public ItemDatabaseHelper(Context context) {
          super(context, "person", null, 1);
      }

      @Override
      public void onCreate(SQLiteDatabase database) {

          database.execSQL("create table if not exists person("
                  + " _id integer primary key autoincrement," + " name text,"
                  + "cid text" + ");");
      }

      @Override
      public void onUpgrade(SQLiteDatabase database, int oldVersion,
              int newVersion) {
          database.execSQL("drop table if exists items");
          onCreate(database);
      }
  }
}