public class MainActivity extends AppCompatActivity { private ListView lv; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); lv = (ListView) findViewById(R.id.lv); // new Thread( // new Runnable() { // @Override // public void run() { // myHttp(); // } // } // // ).start(); asynchronousGet(); } //同步加载 // public void myHttp() { // try { // OkHttpClient client=new OkHttpClient(); // Request request=new Request.Builder() // .url("http://apis.juhe.cn/cook/query?key=c4819a55b9837c8159a054e4cd9b76ec&menu=%E8%A5%BF%E7%BA%A2%E6%9F%BF") // .build(); // Call call = client.newCall(request); // Response response = call.execute(); // if(response.isSuccessful()){ // String string = response.body().string(); // // Gson gson=new Gson(); // Bean bean = gson.fromJson(string, Bean.class); // List<Bean.ResultBean.DataBean> list = bean.getResult().getData(); // System.out.println("解析得数据"+list); // lv.setAdapter(new MyAdapter(MainActivity.this,list)); // } // } catch (Exception e) { // e.printStackTrace(); // } // } //异步加载 public void asynchronousGet(){ OkHttpClient client=new OkHttpClient(); Request request=new Request.Builder() .url("http://apis.juhe.cn/cook/query?key=c4819a55b9837c8159a054e4cd9b76ec&menu=%E8%A5%BF%E7%BA%A2%E6%9F%BF") .build(); Call call = client.newCall(request); call.enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) { } @Override public void onResponse(Call call, Response response) throws IOException { String string = response.body().string(); Gson gson=new Gson(); Bean bean = gson.fromJson(string, Bean.class); final List<Bean.ResultBean.DataBean> list = bean.getResult().getData(); System.out.println("解析得数据"+list); runOnUiThread(new Runnable() { @Override public void run() { MyAdapter adapter=new MyAdapter(MainActivity.this,list); lv.setAdapter(adapter); //adapter.notifyDataSetChanged(); } }); } }); } }