Java Code Examples for android.graphics.Picture#getWidth()

/**
 * X5内核截取长图【暂时用不了】
 * @param webView               x5WebView的控件
 * @return                      返回bitmap对象
 *
 *        方法
 *        1. 使用X5内核方法snapshotWholePage(Canvas, boolean, boolean)；在X5内核中提供了一个截取整个
 *        WebView界面的方法snapshotWholePage(Canvas, boolean, boolean)，但是这个方法有个缺点，
 *        就是不以屏幕上WebView的宽高截图，只是以WebView的contentWidth和contentHeight为宽高截图，
 *        所以截出来的图片会不怎么清晰，但作为缩略图效果还是不错了。
 *        2. 使用capturePicture()截取清晰长图；如果想要在X5内核下截到清晰的长图，不能使用
 *        snapshotWholePage()，依然可以采用capturePicture()。X5内核下使用capturePicture()进行截图，
 *        可以直接拿到WebView的清晰长图，但这是个Deprecated的方法，使用的时候要做好异常处理。
 */
@Deprecated
public static Bitmap captureX5Picture(WebView webView) {
    if (webView == null) {
        return null;
    }
    try {
        Picture picture =  webView.capturePicture();
        int width = picture.getWidth();
        int height = picture.getHeight();
        if (width > 0 && height > 0) {
            Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565);
            Canvas canvas = new Canvas(bitmap);
            picture.draw(canvas);
            return bitmap;
        }
    } catch (Exception e){
        e.printStackTrace();
        return null;
    }
    return null;
}
 

/**
 * 截取所有网页内容到 Bitmap
 *
 * @return Bitmap
 */
Bitmap genCaptureBitmap() throws OutOfMemoryError {
    // @todo Future versions of WebView may not support use on other threads.
    try {
        Picture picture = getWebView().capturePicture();
        int height = picture.getHeight(), width = picture.getWidth();
        if (height == 0 || width == 0) {
            return null;
        }
        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(bitmap);
        picture.draw(canvas);
        return bitmap;
    } catch (NullPointerException e) {
        return null;
    }
}
 

@Override
public final void drawPicture(@NonNull Picture picture, @NonNull Rect dst) {
    save();
    translate(dst.left, dst.top);
    if (picture.getWidth() > 0 && picture.getHeight() > 0) {
        scale((float) dst.width() / picture.getWidth(),
                (float) dst.height() / picture.getHeight());
    }
    drawPicture(picture);
    restore();
}
 

@Override
public final void drawPicture(@NonNull Picture picture, @NonNull RectF dst) {
    save();
    translate(dst.left, dst.top);
    if (picture.getWidth() > 0 && picture.getHeight() > 0) {
        scale(dst.width() / picture.getWidth(), dst.height() / picture.getHeight());
    }
    drawPicture(picture);
    restore();
}
 

private Bitmap captureWebView(WebView webView) {
    Picture picture = webView.capturePicture();
    int width = picture.getWidth();
    int height = picture.getHeight();
    if (width > 0 && height > 0) {
        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(bitmap);
        picture.draw(canvas);
        return bitmap;
    }
    return null;
}
 

private static Bitmap createType1(WebView webView, FileHelper.OnSavedToGalleryListener listener) {
    Picture picture = webView.capturePicture();
    int width = picture.getWidth();
    int height = picture.getHeight();
    Bitmap bitmap = null;
    if (width > 0 && height > 0) {
        bitmap = Bitmap.createBitmap(width, height, Config.RGB_565);
        Canvas canvas = new Canvas(bitmap);
        picture.draw(canvas);
    }
    return bitmap;
}
 

/**
 * Android5.0以下版本
 * 对WebView进行截屏，虽然使用过期方法，
 * 但在当前Android版本中测试可行
 * @param webView               WebView控件
 * @return                      返回bitmap对象
 */
public static Bitmap captureWebViewKitKat(WebView webView) {
    Picture picture = webView.capturePicture();
    int width = picture.getWidth();
    int height = picture.getHeight();
    if (width > 0 && height > 0) {
        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565);
        Canvas canvas = new Canvas(bitmap);
        picture.draw(canvas);
        return bitmap;
    }
    return null;
}
 

public PictureBitmapTextureAtlasSource(final Picture pPicture, final int pTextureX, final int pTextureY) {
	this(pPicture, pTextureX, pTextureY, pPicture.getWidth(), pPicture.getHeight());
}
 

public PictureBitmapTextureAtlasSource(final Picture pPicture, final int pTextureX, final int pTextureY) {
	this(pPicture, pTextureX, pTextureY, pPicture.getWidth(), pPicture.getHeight());
}