从机器人的WebView拍摄照片 [英] Capture picture from android webview

问题描述

我想保存的图片从capturePicture方法得到的的WebView 如何做到这一点？

解决方案

 网​​络=新的WebView（本）;

web.setPictureListener（新PictureListener（）{

    公共无效onNewPicture（web视图来看，画中画）{
      如果（图片！= NULL）
      {
       尝试
       {
        BMP位= pictureDrawable2Bitmap（新PictureDrawable（图片））;
        FileOutputStream中出=新的FileOutputStream（文件名）;
        bmp.com preSS（Bitmap.Com pressFormat.PNG，90，出）;
        out.close（）;
        }
        赶上（例外五）
        {
           e.printStackTrace（）;
        }
      }
}）;

web.setWebViewClient（新WebViewClient（）{
    公共无效onPageFinished（的WebView的WebView，字符串URL）{
        画中画= webview.capturePicture（）;

    }
}）;


web.getSettings（）setJavaScriptEnabled（真）。

的setContentView（网络）;
 

辅助函数

 私有静态位图pictureDrawable2Bitmap（PictureDrawable pictureDrawable）{
        点阵位图= Bitmap.createBitmap（pictureDrawable.getIntrinsicWidth（）
        ，pictureDrawable.getIntrinsicHeight（）
        ，Config.ARGB_8888）;
        帆布油画=新的Canvas（位）;
        canvas.drawPicture（pictureDrawable.getPicture（））;
        返回的位图;
    }
 

<子>免责声明：我没有实际编撰了这本，它应该工作，虽然

I want to save the picture getting from capturePicture method in WebView how to do this?

解决方案

web = new WebView(this);

web.setPictureListener(new PictureListener(){

    public void onNewPicture(WebView view, Picture picture) {
      if(picture != null)
      {
       try
       {
        Bitmap bmp = pictureDrawable2Bitmap(new PictureDrawable(picture)); 
        FileOutputStream out = new FileOutputStream(filename);
        bmp.compress(Bitmap.CompressFormat.PNG, 90, out); 
        out.close();
        }
        catch(Exception e)
        {
           e.printStackTrace();
        }
      }
});

web.setWebViewClient(new WebViewClient() {
    public void onPageFinished(WebView webview, String url) {
        Picture picture = webview.capturePicture();

    }
});


web.getSettings().setJavaScriptEnabled(true);

setContentView(web);

helper function

private static Bitmap pictureDrawable2Bitmap(PictureDrawable pictureDrawable){
        Bitmap bitmap = Bitmap.createBitmap(pictureDrawable.getIntrinsicWidth()
        ,pictureDrawable.getIntrinsicHeight()
        , Config.ARGB_8888);
        Canvas canvas = new Canvas(bitmap);
        canvas.drawPicture(pictureDrawable.getPicture());
        return bitmap;
    }

_{Disclaimer: I haven't actually compiled this, it should work though}

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