Android WebView实现网页滚动截图实现网页滚动截图
主要为大家详细介绍了Android WebView实现网页滚动截图，对整个网页进行截屏，具有一定的参考价值，感兴趣的小伙伴们可以参考
一下
WebView 网页滚动截屏，可对整个网页进行截屏而不是仅当前屏幕哦！
注意若Web页面存在position:fixed; 的话得在调用前设置为 position:absolute; 哦，否则会出现很多次的，请看下面的具体解说吧！！
private static Bitmap getViewBitmapWithoutBottom(View v) {
if (null == v) {
return null;
}
v.setDrawingCacheEnabled(true);
v.buildDrawingCache();
if (Build.VERSION.SDK_INT >= 11) {
v.measure(View.MeasureSpec.makeMeasureSpec(v.getWidth(), View.MeasureSpec.EXACTLY), View.MeasureSpec.makeMeasureSpec(v.getHeight(), View.MeasureSpec.EXACTLY));
v.layout((int) v.getX(), (int) v.getY(), (int) v.getX() + v.getMeasuredWidth(), (int) v.getY() + v.getMeasuredHeight());
} else {
v.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED), View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
v.layout(0, 0, v.getMeasuredWidth(), v.getMeasuredHeight());
}
Bitmap bp = Bitmap.createBitmap(v.getDrawingCache(), 0, 0, v.getMeasuredWidth(), v.getMeasuredHeight() - v.getPaddingBottom());
v.setDrawingCacheEnabled(false);
v.destroyDrawingCache();
return bp;
}
public static Bitmap getViewBitmap(View v) {
if (null == v) {
return null;
}
v.setDrawingCacheEnabled(true);
v.buildDrawingCache();
if (Build.VERSION.SDK_INT >= 11) {
v.measure(View.MeasureSpec.makeMeasureSpec(v.getWidth(), View.MeasureSpec.EXACTLY), View.MeasureSpec.makeMeasureSpec(v.getHeight(), View.MeasureSpec.EXACTLY));
v.layout((int) v.getX(), (int) v.getY(), (int) v.getX() + v.getMeasuredWidth(), (int) v.getY() + v.getMeasuredHeight());
} else {
v.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED), View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
v.layout(0, 0, v.getMeasuredWidth(), v.getMeasuredHeight());
}
Bitmap b = Bitmap.createBitmap(v.getDrawingCache(), 0, 0, v.getMeasuredWidth(), v.getMeasuredHeight());
v.setDrawingCacheEnabled(false);
v.destroyDrawingCache();
return b;
}
/**
* 获取 WebView 视图截图
* @param context
* @param view
* @return
*/
public static Bitmap getWebViewBitmap(Context context, WebView view) {
if (null == view) return null;
view.scrollTo(0, 0);
view.buildDrawingCache(true);
view.setDrawingCacheEnabled(true);
view.setVerticalScrollBarEnabled(false);
Bitmap b = getViewBitmapWithoutBottom(view);
// 可见高度
int vh = view.getHeight();
// 容器内容实际高度
int th = (int)(view.getContentHeight()*view.getScale());
Bitmap temp = null;
if (th > vh) {
int w = getScreenWidth(context);
int absVh = vh - view.getPaddingTop() - view.getPaddingBottom();
do {
int restHeight = th - vh;
if (restHeight <= absVh) {
view.scrollBy(0, restHeight);
vh += restHeight;
temp = getViewBitmap(view);
} else {
view.scrollBy(0, absVh);
vh += absVh;
temp = getViewBitmapWithoutBottom(view);
}
b = mergeBitmap(vh, w, temp, 0, view.getScrollY(), b, 0, 0);
} while (vh < th);
}
// 回滚到顶部
view.scrollTo(0, 0);
view.setVerticalScrollBarEnabled(true);
view.setDrawingCacheEnabled(false);
view.destroyDrawingCache();
return b;
}
/**
* 拼接图片
* @param newImageH
* @param newImageW
* @param background
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