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android ÇöÀç WebView¿¡¼­ ¿ÜºÎ ÆäÀÌÁö ºÒ·¯¿À±â - WebView »õâ ¶ç¿ìÁö ¾Ê±â - WebViewClient
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WebView ¿¡¼­ ¿ÜºÎ ÆäÀÌÁö¸¦ ºÒ·¯¿À·Á°í loadUrl ÇÔ¼ö¸¦ »ç¿ëÇß´õ´Ï °©Àڱ⠿ܺΠºê¶ó¿ìÀú¸¦ ½ÇÇà½ÃŲ ÀûÀÌ ÀÖ´Ù.

WebView ¾È¿¡¼­ À¥ ÆäÀÌÁö¸¦ µ¹¾Æ´Ù³à¾ß ÇÏ´Â °æ¿ì°¡ ÀÖ¾ú´Ù.

óÀ½ ¿¢Æ¼ºñƼ¿¡ ·ÎµåÇÒ °æ¿ì¿¡´Â ¹®Á¦°¡ ¾øÁö¸¸ WebView »ó¿¡¼­ ÆäÀÌÁö À̵¿ÀÌ ÀϾ °Ü¿ì º¸Åë µð¹ÙÀ̽ºÀÇ ºê¶ó¿ìÀú·Î ½ÇÇàµÈ´Ù.

ÀÌ °æ¿ì¿¡´Â WebViewClient ÀÇ shouldOverrideUrlLoading ÇÔ¼ö¸¦ »ç¿ëÇÏ¿© ¾ÆÁÖ °£´ÜÇÏ°Ô ÇØ°áµÈ´Ù.
½±°Ô ¸»Çؼ­ loadUrl ·Î È£ÃâÇÏ´ø ¹æ¹ýÀ» WebViewClient ¿¡¼­ ´ë½Å È£ÃâÇÑ´Ù°í »ý°¢ÇÏ¸é µÈ´Ù.

WebViewClient ¿¡ ´ëÇؼ­´Â ¾Ë¾ÆµÎ¸é ÁÁÀ¸´Ï WebViewClientÀÇ Override ¸Þ¼Òµåµéµµ ÇÔ²² °£´ÜÇÏ°Ô »ìÆ캸°Ú´Ù.

Override ¸Þ¼ÒµåµéÀº onPageStarted, onLoadResource, doUpdateVisitedHistory, onPageFinished, onReceivedError, onReceivedHttpAuthRequest, onScaleChanged, shouldOverrideKeyEvent, shouldOverrideUrlLoading µîÀÌ Àִµ¥ ¾Æ·¡ ¼Ò½º¿¡¼­ ¼³¸íÇÑ´Ù.



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¸ÕÀú webView¿¡ Client¸¦ ¿¬°áÇØ ÁØ´Ù.
webView.setWebViewClient(new MyWebViewClient());

´ÙÀ½À¸·Î´Â MyWebViewClient ¶ó´Â Ŭ·¡½º¸¦ »ý¼ºÇÑ´Ù. ¹°·Ð WebViewClient¸¦ »ó¼Ó¹Þ¾Æ¾ß ÇÑ´Ù.
import android.graphics.Bitmap;
import android.view.KeyEvent;
import android.webkit.HttpAuthHandler;
import android.webkit.WebView;
import android.webkit.WebViewClient;

public class MyWebViewClient extends WebViewClient {

    // ·ÎµùÀÌ ½ÃÀÛµÉ ¶§
    @Override
    public void onPageStarted(WebView view, String url, Bitmap favicon) {
        super.onPageStarted(view, url, favicon);
    }

    // ¸®¼Ò½º¸¦ ·ÎµåÇÏ´Â Áß ¿©·¯¹ø È£Ãâ
    @Override
    public void onLoadResource(WebView view, String url) {
        super.onLoadResource(view, url);
    }

    // ¹æ¹® ³»¿ªÀ» È÷½ºÅ丮¿¡ ¾÷µ¥ÀÌÆ® ÇÒ ¶§
    @Override
    public void doUpdateVisitedHistory(WebView view, String url, boolean isReload) {
        super.doUpdateVisitedHistory(view, url, isReload);
    }

    // ·ÎµùÀÌ ¿Ï·á됬À» ¶§ Çѹø È£Ãâ
    @Override
    public void onPageFinished(WebView view, String url) {
        super.onPageFinished(view, url);
    }

    // ¿À·ù°¡ ³µÀ» °æ¿ì, ¿À·ù´Â º¹¼öÇÒ ¼ö ¾øÀ½
    @Override
    public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
        super.onReceivedError(view, errorCode, description, failingUrl);

        switch (errorCode) {
            case ERROR_AUTHENTICATION:
                break;               // ¼­¹ö¿¡¼­ »ç¿ëÀÚ ÀÎÁõ ½ÇÆÐ
            case ERROR_BAD_URL:
                break;                           // À߸øµÈ URL
            case ERROR_CONNECT:
                break;                          // ¼­¹ö·Î ¿¬°á ½ÇÆÐ
            case ERROR_FAILED_SSL_HANDSHAKE:
                break;    // SSL handshake ¼öÇà ½ÇÆÐ
            case ERROR_FILE:
                break;                                  // ÀÏ¹Ý ÆÄÀÏ ¿À·ù
            case ERROR_FILE_NOT_FOUND:
                break;               // ÆÄÀÏÀ» ãÀ» ¼ö ¾ø½À´Ï´Ù
            case ERROR_HOST_LOOKUP:
                break;           // ¼­¹ö ¶Ç´Â ÇÁ·Ï½Ã È£½ºÆ® À̸§ Á¶È¸ ½ÇÆÐ
            case ERROR_IO:
                break;                              // ¼­¹ö¿¡¼­ Àаųª ¼­¹ö·Î ¾²±â ½ÇÆÐ
            case ERROR_PROXY_AUTHENTICATION:
                break;   // ÇÁ·Ï½Ã¿¡¼­ »ç¿ëÀÚ ÀÎÁõ ½ÇÆÐ
            case ERROR_REDIRECT_LOOP:
                break;               // ³Ê¹« ¸¹Àº ¸®µð·º¼Ç
            case ERROR_TIMEOUT:
                break;                          // ¿¬°á ½Ã°£ ÃÊ°ú
            case ERROR_TOO_MANY_REQUESTS:
                break;     // ÆäÀÌÁö ·ÎµåÁß ³Ê¹« ¸¹Àº ¿äû ¹ß»ý
            case ERROR_UNKNOWN:
                break;                        // ÀÏ¹Ý ¿À·ù
            case ERROR_UNSUPPORTED_AUTH_SCHEME:
                break; // Áö¿øµÇÁö ¾Ê´Â ÀÎÁõ ü°è
            case ERROR_UNSUPPORTED_SCHEME:
                break;          // URI°¡ Áö¿øµÇÁö ¾Ê´Â ¹æ½Ä
        }

    }

    // http ÀÎÁõ ¿äûÀÌ ÀÖ´Â °æ¿ì, ±âº» µ¿ÀÛÀº ¿äû Ãë¼Ò
    @Override
    public void onReceivedHttpAuthRequest(WebView view, HttpAuthHandler handler, String host, String realm) {
        super.onReceivedHttpAuthRequest(view, handler, host, realm);
    }

    // È®´ë³ª Å©±â µîÀÇ º¯È­°¡ ÀÖ´Â °æ¿ì
    @Override
    public void onScaleChanged(WebView view, float oldScale, float newScale) {
        super.onScaleChanged(view, oldScale, newScale);
    }

    // À߸øµÈ Å° ÀÔ·ÂÀÌ ÀÖ´Â °æ¿ì
    @Override
    public boolean shouldOverrideKeyEvent(WebView view, KeyEvent event) {
        return super.shouldOverrideKeyEvent(view, event);
    }

    // »õ·Î¿î URLÀÌ webview¿¡ ·ÎµåµÇ·Á ÇÒ °æ¿ì ÄÁÆ®·ÑÀ» ´ë½ÅÇÒ ±âȸ¸¦ ÁÜ
    @Override
    public boolean shouldOverrideUrlLoading(WebView view, String url) {
        view.loadUrl(url);
        return true;
    }
}
°¢ Overrid ÇÔ¼ö¿¡ ´ëÇÑ ¼³¸íÀº ÁÖ¼®À¸·Î ´ëüÇÑ´Ù.
¼Ò½º¿¡ ÀÖ´Â ÁÖ¼®À» º¸¸é ¾Ë°ÚÁö¸¸ Override µÇ´Â ÇÔ¼ö´Â ¿©·¯°³ÀÌ´Ù. webview¸¦ ÄÁÆ®·Ñ Çϱâ À§Çؼ­´Â À§ ÇÔ¼öµéÀÌ ²Ï À¯¿ëÇÏ°Ô »ç¿ëµÈ´Ù.
ÇÏÁö¸¸ ¸ðµÎ Çʼö´Â ¾Æ´Ï´Ï ÇÊ¿äÇÑ ÇÔ¼öµé¸¸ »ó¼Ó¹Þ¾Æ¼­ »ç¿ëÇÏ¸é µÈ´Ù. ¸ðµÎ Àû¾î³õÀº ÀÌÀ¯´Â Ȥ½Ã³ª ÇÊ¿äÇÒ °æ¿ì Âü°íÇϱâ À§Çؼ­ ÀÌ´Ù.


´Ù½Ã º»·ÐÀ¸·Î µ¹¾Æ¿Í¼­ ¼Ò½º °¡Àå ¸¶Áö¸·¿¡ ÀÖ´Â shouldOverrideUrlLoading ¿¡ ´ëÇؼ­ »ìÆ캻´Ù.
ÀÌ ÇÔ¼ö´Â WebView ¿¡ »õ·Î¿î UrlÀÌ ·ÎµåµÉ·Á°í ÇÒ °æ¿ì ½ÇÇàµÈ´Ù.
»õ·Î¿î UrlÀÌ È£Ã⠵Ǵ ±âȸ¸¦ WebView Client¿¡°Ô Á¦°øÇÏ°í ¿©±â¼­ loadUrl À» »ç¿ëÇÏ¿© È£ÃâÇϰԵǸé WebView¿¡¼­ ·ÎµåµÇ°ÔµÈ´Ù. return°ªÀ» true·Î ÇÏ¸é »õ·Î¿î UrlÀ» È£ÃâÇϱâ À§Çؼ­ ¿ÜºÎ ºê¶ó¿ìÀú¸¦ ´õÀÌ»ó ãÁö ¾Ê°Ô µÈ´Ù.
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