從巴頓VS從

Question

類

我有一類我做，使簡單的GET請求，並顯示與響應敬酒messege http請求......

如果我叫從底事件的函數點擊顯示器返回數據的消息傳遞，就好了。

但如果我叫從brodcast reciver類相同的功能，它只是顯示我相信的，這顯示了massege我能得到的數據之前，並與數據「」（空）

的massege它等待數據的按鈕..

我該如何使它從brodcast reciver工作？

類：

import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStream; 
import java.io.InputStreamReader; 
import java.net.HttpURLConnection; 
import java.net.URL; 

import android.app.Activity; 
import android.content.Context; 
import android.widget.Toast; 

public class myclass{ 


public static void doHttpRequest(String param1, Context context){ 

    String ret=""; 

    try { 
     URL url = new URL("http://website.com/page?param="+param1); 
     HttpURLConnection con = (HttpURLConnection) url 
      .openConnection(); 
     ret=readStream(con.getInputStream()); 
     } catch (Exception e) { 
     e.printStackTrace(); 
    } 

    CharSequence text = "return data- "+ret; 
    int duration = Toast.LENGTH_LONG; 
    Toast toast = Toast.makeText(context, text, duration); 
    toast.show(); 
} 



    private static String readStream(InputStream in) { 
BufferedReader reader = null; 
String line = ""; 
String alllines = ""; 
try { 
    reader = new BufferedReader(new InputStreamReader(in)); 

    while ((line = reader.readLine()) != null) { 
    alllines=alllines+line; 
    } 

    return alllines; 

} catch (IOException e) { 
    e.printStackTrace(); 
} finally { 
    if (reader != null) { 
     try { 
     reader.close(); 

     } catch (IOException e) { 
     e.printStackTrace(); 
     } 
    } 

} 
return alllines; 

} 
} 

從按鈕正常工作：

final Button button = (Button) findViewById(R.id.button1); 
button.setOnClickListener(new View.OnClickListener() { 
public void onClick(View v) { 

myclass.doHttpRequest("blabla", getBaseContext()); 

}}); 

來自不同類的brodcast reciver巫婆它不會返回數據，表示的是烤麪包..

public class CustomBroadcastReceiver extends BroadcastReceiver { 

private static final String TAG = "CustomBroadcastReceiver"; 

@Override 
public void onReceive(Context context, Intent intent) { 


    myclass.doHttpRequest("blabla", context); 


    break; 
    } } 


    } 

請幫助.... :)感謝

Answer 1

所有固定..它似乎是一個項目設置錯誤，或premmisions錯誤（但我有在清單中的準備......在編譯時一定不能在apk中應用）

我複製了類來引入項目通過月食erlier版本所做的，和它的作品有像一個魅力...

我還是謝謝你.. 我嘗試了好幾個小時來修復它的代碼..它是設置....

Answer 2

我創建了一個myclass.java和CustomBroadcastReceiver.java，並通過從中刪除break語句和一個額外的大括號來試用您的代碼班，它對我很好。

Activity類中的以下代碼演示了註冊，無興趣的接收器和一個處理樣本/測試廣播的Handler。

CustomBroadcastReceiver customBroadcastReceiver; 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    customBroadcastReceiver = new CustomBroadcastReceiver(); 
    registerReceiver(cusoBroadcastReceiver, new IntentFilter("com.example.app.testbroadcast")); 

      // For test broadcast only. 
    new Handler().postDelayed(new Runnable() { 

     @Override 
     public void run() { 
      // TODO Auto-generated method stub 
      sendBroadcast(new Intent("com.example.app.testbroadcast")); 
     } 
    }, 2000); 

} 

@Override 
protected void onDestroy() { 
    // TODO Auto-generated method stub 
    super.onDestroy(); 
    unregisterReceiver(customBroadcastReceiver); 
} 

希望這會有所幫助。