📅  最后修改于: 2023-12-03 15:13:20.517000             🧑  作者: Mango
Android Radio应用程序是一款基于Android平台的收听广播节目和音乐的应用程序。它提供了一个简单易用的界面,用户可以选择各种类型的电台和音乐,随时随地享受愉悦的听觉体验。
下面是使用Retrofit异步请求网络资源的代码片段:
public class RadioApi {
private static final String BASE_URL = "https://api.radio.com/";
private static RadioApi instance;
private RadioService service;
public static synchronized RadioApi getInstance() {
if (instance == null) {
instance = new RadioApi();
}
return instance;
}
private RadioApi() {
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.build();
service = retrofit.create(RadioService.class);
}
public void searchRadios(String keyword, int limit, Callback<RadioSearchResult> callback) {
service.searchRadios(keyword, limit).enqueue(callback);
}
public interface RadioService {
@GET("radios/search")
Call<RadioSearchResult> searchRadios(
@Query("keywords") String keywords,
@Query("limit") int limit
);
}
}
下面是一些使用Room进行数据持久化的代码片段:
@Entity
public class Radio {
@PrimaryKey
private int id;
private String name;
private String imageUrl;
private String streamUrl;
private boolean isFavorite;
// getter and setter
}
@Dao
public interface RadioDao {
@Query("SELECT * FROM Radio")
List<Radio> getAll();
@Insert(onConflict = OnConflictStrategy.REPLACE)
void insert(Radio radio);
@Delete
void delete(Radio radio);
@Update
void update(Radio radio);
}
@Database(entities = {Radio.class}, version = 1)
public abstract class RadioDatabase extends RoomDatabase {
public abstract RadioDao radioDao();
}
// 使用
RadioDatabase db = Room.databaseBuilder(context, RadioDatabase.class, "radio-db").build();
RadioDao dao = db.radioDao();
List<Radio> allRadios = dao.getAll();