如何從自定義瀏覽器導航到Android中的應用程序？

Question

我在我的應用程序中集成了自定義瀏覽器，用於PayU集成。我沒有將任何參數發送到PayU URL（https://secure.payu.in/_payment）。我正在做（向PayU發送參數）這在服務器端。我只需要定製瀏覽器，這就是爲什麼我使用這個。這對我來說工作得很好，但支付成功後它顯示空的白色屏幕。如何在此白色空白屏幕後導航到我的應用程序。

如何獲取自定義瀏覽器的網址？

REF鏈路：https://github.com/payu-intrepos/Android-Custom-Browser/wiki/v5.2.2

依賴性：

compile 'com.payu.custombrowser:payu-custom-browser:5.2.2' 

代碼：

custombrowserxl：

<RelativeLayout 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/r_layout" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:gravity="center_horizontal"> 
    <FrameLayout 
     android:id="@+id/parent" 
     android:visibility="gone" 
     android:layout_alignParentBottom="true" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content"/> 
    <WebView 
     android:id="@+id/webview" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent"/> 
    <LinearLayout 
     android:layout_width="match_parent" 
     android:id="@+id/trans_overlay" 
     android:layout_height="match_parent" 
     android:orientation="horizontal" 
     > 
    </LinearLayout> 
</RelativeLayout> 

custombrowser.java

try { 
      Class.forName("com.payu.custombrowser.Bank"); 
      final Bank bank = new Bank() { 
       @Override 
       public void registerBroadcast(BroadcastReceiver broadcastReceiver, IntentFilter filter) { 
        mReceiver = broadcastReceiver; 
        registerReceiver(broadcastReceiver, filter); 
       } 

       @Override 
       public void unregisterBroadcast(BroadcastReceiver broadcastReceiver) { 
        if(mReceiver != null){ 
         unregisterReceiver(mReceiver); 
         mReceiver = null; 
        } 
       } 

       @Override 
       public void onHelpUnavailable() { 
        findViewById(R.id.parent).setVisibility(View.GONE); 
        findViewById(R.id.trans_overlay).setVisibility(View.GONE); 
       } 

       @Override 
       public void onBankError() { 
        findViewById(R.id.parent).setVisibility(View.GONE); 
        findViewById(R.id.trans_overlay).setVisibility(View.GONE); 
       } 

       @Override 
       public void onHelpAvailable() { 
        findViewById(R.id.parent).setVisibility(View.VISIBLE); 
       } 

      }; 
      Bundle args = new Bundle(); 
      args.putInt("webView", R.id.webview); 
      args.putInt("tranLayout",R.id.trans_overlay); 
      args.putInt("mainLayout",R.id.r_layout); 
      args.putBoolean("showCustom", true); 
      bank.setArguments(args); 
      findViewById(R.id.parent).bringToFront(); 
      try { 
       getSupportFragmentManager().beginTransaction().setCustomAnimations(R.anim.cb_fade_in, R.anim.cb_face_out).add(R.id.parent, bank).commit(); 
      }catch(Exception e) 
      { 
       e.printStackTrace(); 
       finish(); 
      } 

      webView.setWebChromeClient(new PayUWebChromeClient(bank)); 
      webView.setWebViewClient(new PayUWebViewClient(bank)); 
     } catch (ClassNotFoundException e) { 
      webView.getSettings().setSupportMultipleWindows(true); 
      webView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true); 

      webView.addJavascriptInterface(new Object() { 
       @JavascriptInterface 
       public void onSuccess() { 

        onSuccess(""); 
       } 

       @JavascriptInterface 
       public void onSuccess(final String result) { 

        runOnUiThread(new Runnable() { 
         @Override 
         public void run() { 
          Intent intent = new Intent(); 
          intent.putExtra("result", result); 
          setResult(RESULT_OK, intent); 
          finish(); 

         } 
//    } 
        }); 
       } 

       @JavascriptInterface 
       public void onFailure() { 
        onFailure(""); 
       } 

       @JavascriptInterface 
       public void onFailure(final String result) { 
        runOnUiThread(new Runnable() { 
         @Override 
         public void run() { 
          Intent intent = new Intent(); 
          intent.putExtra("result", result); 
          setResult(RESULT_CANCELED, intent); 
          finish(); 
         } 
        }); 
       } 
      }, "PayU"); 

      webView.setWebChromeClient(new WebChromeClient() { 

      }); 
      webView.setWebViewClient(new WebViewClient()); 
     } 

     webView.getSettings().setJavaScriptEnabled(true); 
     webView.getSettings().setDomStorageEnabled(true); 

    String PostData="UserUniqueID=" + UUUID + "&OrderID=" + orderid + "&PFID=" + pid + "&ReloadCash=" + reloadcash + "&DeviceID=" + DEVICEID ; 

     webView.postUrl(WebUrl.Bankurl, PostData.getBytes()); 
     //Weburl.posturl is my server side bank url. 
    } 


    @Override 
    public void onBackPressed(){ 
     boolean disableBack = false; 
     if(cancelTransaction){ 
      cancelTransaction = false; 
      Intent intent = new Intent(); 
      intent.putExtra("result", "Transaction canceled due to back pressed!"); 
      setResult(RESULT_CANCELED, intent); 
      super.onBackPressed(); 
      return; 
     } 
     try { 
      Log.v("TAG_PAUSEURLL", "" + "PAUSEURL"); 
      Bundle bundle = getPackageManager().getApplicationInfo(getPackageName(), PackageManager.GET_META_DATA).metaData; 
      disableBack = bundle.containsKey("payu_disable_back") && bundle.getBoolean("payu_disable_back"); 
     } catch (PackageManager.NameNotFoundException e) { 
      e.printStackTrace(); 
     } 
     if(!disableBack) { 
      AlertDialog.Builder alertDialog = new AlertDialog.Builder(this); 
      alertDialog.setCancelable(false); 
      alertDialog.setMessage("Do you really want to cancel the transaction ?"); 
      alertDialog.setPositiveButton("Ok", new DialogInterface.OnClickListener() { 
       @Override 
       public void onClick(DialogInterface dialog, int which) { 
        cancelTransaction = true; 
        dialog.dismiss(); 
        onBackPressed(); 
       } 
      }); 
      alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() { 
       @Override 
       public void onClick(DialogInterface dialog, int which) { 
        dialog.dismiss(); 
       } 
      }); 
      alertDialog.show(); 
     } 
    } 

    @Override 
    protected void onDestroy() { 
     super.onDestroy(); 

     webView.clearCache(true); 
     webView.clearHistory(); 
     webView.destroy(); 
    } 

Answer 1

首選此代碼

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.payment_home); 


    btnBuy.setOnClickListener(new OnClickListener() { 

     @SuppressLint({ "SetJavaScriptEnabled", "ShowToast" }) @Override 
     public void onClick(View v) { 
      // TODO Auto-generated method stub 
      if(f_nm && f_pn && f_email) 
      { 
       webview.setVisibility(View.VISIBLE); 
       Integer randomNum = randInt(0, 9999999); 
       txnid=randomNum.toString(); 
       firstname=etName.getText().toString(); 
       email=etEmail.getText().toString(); 
       amount=study_material_price; 
       productinfo=study_material_name; 
       phone=etPhone.getText().toString(); 
       String hashSequence = merchant_key+"|"+txnid+"|"+amount+"|"+productinfo+"|"+firstname+"|"+email+"|||||||||||"+salt; 
       hash = hashCal("SHA-512", hashSequence); 
       webview.addJavascriptInterface(new PayUJavaScriptInterface(), "PayUMoney"); 
       String json ="txnid="+txnid+"&key="+merchant_key+"&amount="+amount+"&hash="+hash+"&productinfo="+productinfo+"&surl="+SURL+"&furl="+FURL+"&firstname="+firstname+"&email="+email+"&phone="+phone+"&service_provider=payu_paisa"; 
       webview.getSettings().setUserAgentString("Mozilla/5.0 (Linux; U; Android 2.0; en-us; Droid Build/ESD20) AppleWebKit/530.17 (KHTML, like Gecko) Version/4.0 Mobile Safari/530.17"); 
       webview.getSettings().setDomStorageEnabled(true); 
       webview.getSettings().setJavaScriptEnabled(true); 
       webview.getSettings().setSupportMultipleWindows(true); 
       webview.getSettings().setJavaScriptCanOpenWindowsAutomatically(true); 
       webview.getSettings().setSupportZoom(true);  //Zoom Control on web (You don't need this 
       //if ROM supports Multi-Touch 
       webview.getSettings().setBuiltInZoomControls(true); 
       webview.setWebViewClient(new WebViewClient()); 
       webview.setWebViewClient(
         new SSLTolerentWebViewClient() 
         ); 
       webview.postUrl("https://secure.payu.in/_payment", EncodingUtils.getBytes(json, "BASE64")); 

       try { 

        webview.setWebViewClient(new WebViewClient() { 
         @Override 
         public void onReceivedError(WebView view, int errorCode, 
           String description, String failingUrl) { 
          Log.d("WEB_VIEW_TEST", "error code:" + errorCode + " - " + description); 
         } 

         @Override 
         public boolean shouldOverrideUrlLoading(WebView view, String url) { 
          // handle different requests for different type of files 
          // this example handles downloads requests for .apk and .mp3 files 
          // everything else the webview can handle normally 
          if (url.endsWith(".mp3")||url.endsWith(".zip") || url.endsWith(".pdf") || url.endsWith(".jpg")|| url.endsWith(".doc")|| url.endsWith(".png")|| url.endsWith(".docx")|| url.endsWith(".xml")|| url.endsWith(".gif")) { 
           String urlSplit[] = url.split("/"); 
           String fileName = urlSplit[urlSplit.length-1]; 
           Uri source = Uri.parse(url); 
           // Make a new request pointing to the .apk url 
           DownloadManager.Request request = new DownloadManager.Request(source); 
           // appears the same in Notification bar while downloading 
           request.setDescription("Description for the DownloadManager Bar"); 
           request.setTitle(fileName); 
           if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { 
            request.allowScanningByMediaScanner(); 
            request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED); 
           } 
           // save the file in the "Downloads" folder of SDCARD 
           request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS,fileName); 
           // get download service and enqueue file 
           DownloadManager manager = (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE); 
           manager.enqueue(request); 
          } 
          // if there is a link to anything else than .apk or .mp3 load the URL in the webview 
          else view.loadUrl(url); 
          return true;     
         } 
        }); 


       } catch (Exception e) { 
        e.printStackTrace(); 
       } 
      }else{ 
       Toast.makeText(getApplicationContext(), "Please fill all the fields.", 1000).show(); 
      } 
     } 
    }); 
} 

@Override 
public boolean onKeyDown(int keyCode, KeyEvent event) { 
    if(event.getAction() == KeyEvent.ACTION_DOWN){ 
     switch(keyCode) 
     { 
     case KeyEvent.KEYCODE_BACK: 
      if(webview.canGoBack()){ 
       webview.goBack(); 
      }else{ 
       finish(); 
      } 
      return true; 
     } 

    } 
    return super.onKeyDown(keyCode, event); 
} 

private final class PayUJavaScriptInterface { 
    PayUJavaScriptInterface() { 
    } 

    /** 
    * This is not called on the UI thread. Post a runnable to invoke 
    * loadUrl on the UI thread. 
    */ 
    @JavascriptInterface 
    public void success(long id, final String pId) { 
     mHandler.post(new Runnable() { 
      public void run() { 
       mHandler = null; 
       Toast.makeText(getApplicationContext(), "Your Transaction is Successful", 1000).show(); 
       status="Success"; 
       paymentId=pId; 
       new StoreTransactionData().execute(); 
       Intent intent = new Intent(); 
       intent.putExtra("status", "success"); 
       intent.putExtra("transaction_id", paymentId); 
       setResult(RESULT_OK, intent); 
       studyDownloadPaid(); 
       finish(); 
      } 
     }); 
    } 



    @JavascriptInterface 
    public void failure(final String id, String error) { 
     Log.d("transaction data fail id", id +" " +study_material_name); 
     mHandler.post(new Runnable() { 
      @Override 
      public void run() { 
       paymentId=id; 
       status="Faluire"; 
       new StoreTransactionData().execute(); 
       cancelPayment(); 
      } 
     }); 
    } 

    @JavascriptInterface 
    public void failure() { 
     failure(""); 
    } 

    @JavascriptInterface 
    public void failure(final String params) { 
     mHandler.post(new Runnable() { 
      @Override 
      public void run() { 
       paymentId=params; 
       status="Faluire"; 
       new StoreTransactionData().execute(); 
       Log.d("transaction data fail param", params); 
       Intent intent = new Intent(); 
       intent.putExtra("status", params); 
       setResult(RESULT_CANCELED, intent); 
       finish(); 
      } 
     }); 
    } 

} 

private void cancelPayment() { 
    Intent intent = new Intent(); 
    intent.putExtra("status", "cancel"); 
    //mWebView.destroy(); 
    setResult(RESULT_CANCELED, intent); 
    finish(); 
} 

public static String hashCal(String type, String str) { 
    byte[] hashseq = str.getBytes(); 
    StringBuffer hexString = new StringBuffer(); 
    try { 
     MessageDigest algorithm = MessageDigest.getInstance(type); 
     algorithm.reset(); 
     algorithm.update(hashseq); 
     byte messageDigest[] = algorithm.digest(); 
     for (int i = 0; i < messageDigest.length; i++) { 
      String hex = Integer.toHexString(0xFF & messageDigest[i]); 
      if (hex.length() == 1) { 
       hexString.append("0"); 
      } 
      hexString.append(hex); 
     } 
    } catch (NoSuchAlgorithmException nsae) { 
    } 
    return hexString.toString(); 
} 

public static int randInt(int min, int max) { 
    // Usually this should be a field rather than a method variable so 
    // that it is not re-seeded every call. 
    Random rand = new Random(); 

    // nextInt is normally exclusive of the top value, 
    // so add 1 to make it inclusive 
    int randomNum = rand.nextInt((max - min) + 1) + min; 

    return randomNum; 
} 


private class SSLTolerentWebViewClient extends WebViewClient { 

    @Override 
    public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) { 
     handler.proceed(); // Ignore SSL certificate errors 
    } 

}