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webView?配置?

        WebSettings webSettings = webView.getSettings(); webSettings.setJavaScriptCanOpenWindowsAutomatically(true);webSettings.setDomStorageEnabled(true);webSettings.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.SINGLE_COLUMN);//自適應屏幕        ☆☆webSettings.setDisplayZoomControls(false);webSettings.setJavaScriptEnabled(true); // 設置支持javascript腳本 ☆☆webSettings.setAllowFileAccess(true); // 允許訪問文件webSettings.setBuiltInZoomControls(true); // 設置顯示縮放按鈕webSettings.setSupportZoom(true); // 支持縮放webSettings.setLoadWithOverviewMode(true);webSettings.setUseWideViewPort(true);  

?Android處理事件(ImgTool.java)

    public static class JavaScriptInterface {private Context context;public JavaScriptInterface(Context context) {this.context = context;}//點擊圖片回調方法//必須添加注解,否則無法響應@JavascriptInterfacepublic void openImage(String imgsrc) { Bitmap bitmap = null;try{bitmap = BitmapFactory.decodeStream(new URL(imgsrc).openStream());} catch (IOException e){e.printStackTrace();}Drawable drawable;if (bitmap != null){drawable = new BitmapDrawable(context.getResources(), bitmap);//彈出個全屏窗口打開圖片對象 自己寫就行了//ImgTool.ViewImg((Activity) context,drawable);}}}

重寫?onPageFinished?注入js

        webView.setWebViewClient(new WebViewClient(){@Overridepublic void onPageFinished(WebView view, String url){super.onPageFinished(view, url);/*** 對圖片進行重置大小，寬度就是手機屏幕寬度，高度根據寬度比便自動縮放**/webView.loadUrl("javascript:(function(){"+ "var objs = document.getElementsByTagName('img'); "+ "for(var i=0;i<objs.length;i++)  "+ "{"+ "var img = objs[i];   "+ "    img.style.maxWidth = '100%'; img.style.height = 'auto';  "+ "}"+ "})()");// html加載完成之后，添加監聽圖片的點擊js函數webView.loadUrl("javascript:(function(){"+ "var objs = document.getElementsByTagName(\"img\"); "+ "for(var i=0;i<objs.length;i++)  "+ "{"+ "    objs[i].onclick=function()  "+ "    {  "+ "        window.imagelistner.openImage(this.src);  "+ "    }  "+ "}"+ "})()");}    });

        //AndroidtoJS類對象映射到js的openImage對象 YourActivity 也就是當前的activitywebView.addJavascriptInterface(new ImgTool.JavaScriptInterface(YourActivity.this), "imagelistner");webView.loadUrl(url);

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