Example usage for android.webkit WebView destroyDrawingCache

Introduction

In this page you can find the example usage for android.webkit WebView destroyDrawingCache.

Prototype

@Deprecated
public void destroyDrawingCache() 

Source Link

Document

Frees the resources used by the drawing cache.

Usage

From source file:Main.java

public static Bitmap getWebViewShopshat(WebView webView) {
    webView.setDrawingCacheEnabled(true);
    webView.buildDrawingCache();//from w w w.jav a 2  s  .  co  m
    Picture snapShot = webView.capturePicture();
    Bitmap bitmap = Bitmap.createBitmap(snapShot.getWidth(), snapShot.getHeight(), Bitmap.Config.ARGB_8888);
    //bitmap.eraseColor(Color.WHITE);

    Canvas c = new Canvas(bitmap);
    int state = c.save();
    webView.draw(c);
    //c.restoreToCount(state);
    c.restore();
    webView.destroyDrawingCache();

    return bitmap;
}

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From source file:net.gsantner.opoc.util.ShareUtil.java

/**
 * Create a picture out of {@link WebView}'s whole content
 *
 * @param webView The WebView to get contents from
 * @return A {@link Bitmap} or null//from  ww  w .j a  v  a2  s.  c  o  m
 */
@Nullable
public static Bitmap getBitmapFromWebView(WebView webView) {
    try {
        //Measure WebView's content
        int widthMeasureSpec = View.MeasureSpec.makeMeasureSpec(View.MeasureSpec.UNSPECIFIED,
                View.MeasureSpec.UNSPECIFIED);
        int heightMeasureSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
        webView.measure(widthMeasureSpec, heightMeasureSpec);
        webView.layout(0, 0, webView.getMeasuredWidth(), webView.getMeasuredHeight());

        //Build drawing cache and store its size
        webView.buildDrawingCache();
        int measuredWidth = webView.getMeasuredWidth();
        int measuredHeight = webView.getMeasuredHeight();

        //Creates the bitmap and draw WebView's content on in
        Bitmap bitmap = Bitmap.createBitmap(measuredWidth, measuredHeight, Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(bitmap);
        canvas.drawBitmap(bitmap, 0, bitmap.getHeight(), new Paint());

        webView.draw(canvas);
        webView.destroyDrawingCache();

        return bitmap;
    } catch (Exception | OutOfMemoryError e) {
        e.printStackTrace();
        return null;
    }
}

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