停止主線程同時獲得來自服務器

Question

UIHelper.showProgressDialog(this); 
    ValCircuitPriceController controller = new ValCircuitPriceController(PlaceOrderActivity.this, this.exchangeID, this.instrumentID, et_PriceValue.getText().toString()); 
    controller.start(); 

    if (isValCircuitPrice) { 
     order.setOrderPrice(
      Double.parseDouble(et_PriceValue.getText().toString())); 
     isValCircuitPrice = false; 
    } else { 
     break; 
    } 

響應這是我的代碼我打電話控制器從服務器獲取響應，但得到從服務器響應之前，我如果條件通話和isValCircuitPrice默認情況下得到響應後假我將使它真正

Answer 1

用戶asynTask的做到了這一點

private class ValCircuitPriceTask extends AsyncTask<String, Void, String> { 

    @Override 
    protected String doInBackground(String... params) { 
     ValCircuitPriceController controller = new 
     ValCircuitPriceController(PlaceOrderActivity.this, this.exchangeID, 
     this.instrumentID, et_PriceValue.getText().toString()); 
     controller.start(); 

     return ""; 
    } 

    @Override 
    protected void onPostExecute(String result) { 
     if (isValCircuitPrice) { 
      order.setOrderPrice(
      Double.parseDouble(et_PriceValue.getText().toString())); 
      isValCircuitPrice = false; 
     } else { 
      break; 
     } 
    } 

    @Override 
    protected void onPreExecute() { 
     UIHelper.showProgressDialog(this); 
    } 
} 

最後執行你的asyntask

new ValCircuitPriceTask().execute("");