短信恢复的原理——使用内容提供者

public class MainActivity extends Activity {

protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}

public void back(View view){
ContentResolver resolver = getContentResolver();
Uri uri = Uri.parse("content://sms");
ContentValues values = new ContentValues();
values.put("address", "110");
values.put("body", "过来喝茶吧");
values.put("date",System.currentTimeMillis());
values.put("type", "1");//1是收短信,2是发短信
values.put("read", "0");//0是未读，1是已读
resolver.insert(uri, values);
Toast.makeText(this, "还原成功", Toast.LENGTH_SHORT).show();
}

}