4月9日学习日志

今天学习了ContentProvider。

核心代码为：

private void getMsgs(){
    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);
    while(cursor.moveToNext())
    {
        String address = cursor.getString(0);
        String date = cursor.getString(1);
        String type = cursor.getString(2);
        String body = cursor.getString(3);
        System.out.println("地址:" + address);
        System.out.println("时间:" + date);
        System.out.println("类型:" + type);
        System.out.println("内容:" + body);
        System.out.println("======================");
    }
    cursor.close();
}