730. (Android/Java) [간단 소스] 안드로이드 웹뷰 evaluateJavascript 사용해 웹 이미지 태그 src 값 변경 - getElementById

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[개발 환경 설정]

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개발 툴 : AndroidStudio

 

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[소스 코드]

 

            // ---------------------------------------------------------------
            // [웹 소스코드]
            // ---------------------------------------------------------------
            <div id="container">
                <img id="img" src="" style="width:100%; height:100%;">
            </div>





            // ---------------------------------------------------------------
            // [안드로이드 소스코드]
            // ---------------------------------------------------------------
            try {

                String script = "javascript:document.getElementById('img').src = '"
                        + "https://i.pravatar.cc/150?img=1" + "';";

                main_webview.evaluateJavascript(script, new ValueCallback<String>() {
                    @Override
                    public void onReceiveValue(String value) {
                        S_Log._W_("Webview :: onReceiveValue", new String[]{String.valueOf(value)});
                    }
                });

            }
            catch (Exception e){
                e.printStackTrace();
            }
            // ---------------------------------------------------------------

 

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[결과 확인]

 

W///===========//: ================================================
I/: [LOG :: CLASS PLACE :: com.example.javaproject.A_Webview$5.onReceiveValue(A_Webview.java:1254)]
I/: ----------------------------------------------------
I/: [LOG :: NOW TIME :: 2024-01-24 07:54:31 수요일]
I/: ----------------------------------------------------
I/: [LOG :: DESCRIPTION :: Webview :: onReceiveValue]
I/: ----------------------------------------------------
I/: [LOG :: "https://i.pravatar.cc/150?img=1"]
W///===========//: ================================================

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