跳过了104帧！该应用程序可能在其主线程上做了太多工作

我在StackOverflow中检查了解答案，但是我没有找到太多内容。所以，我正在做这个练习，就像Hello World与JSON一起工作，我得到了来自openweather API的JSON响应。我在EditText中输入城市名称，然后按按钮搜索并在日志中显示JSON字符串。跳过了104帧！该应用程序可能在其主线程上做了太多工作

public class MainActivity extends AppCompatActivity { 
EditText city; 
public void getData(View view){ 
    String result; 
    String cityName = city.getText().toString(); 
    getWeather weather = new getWeather(); 
    try { 
     result = weather.execute(cityName).get(); 
     System.out.println(result); 
    } catch (InterruptedException e) { 
     e.printStackTrace(); 
    } catch (ExecutionException e) { 
     e.printStackTrace(); 
    } 
} 

public class getWeather extends AsyncTask<String, Void, String>{ 

    @Override 
    protected String doInBackground(String... urls) { 
     URL url; 
     HttpURLConnection connection = null; 
     String result = ""; 

     try { 
      String finalString = urls[0]; 
      finalString = finalString.replace(" ", "%20"); 
      String fullString = "http://api.openweathermap.org/data/2.5/forecast?q=" + finalString + "&appid=a18dc34257af3b9ce5b2347bb187f0fd"; 
      url = new URL(fullString); 
      connection = (HttpURLConnection) url.openConnection(); 
      InputStream in = connection.getInputStream(); 
      InputStreamReader reader = new InputStreamReader(in); 
      int data = reader.read(); 
      while(data != -1){ 
       char current = (char) data; 
       result += current; 
       data = reader.read(); 
      } 
      return result; 
     } catch (MalformedURLException e) { 
      e.printStackTrace(); 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } 
     return null; 

    } 
} 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    city = (EditText) findViewById(R.id.editText); 
} 
}

我该怎么做才能得到这个消息？

来源

2017-02-28 Vedran Korponajić