所有的ListView项目的Android开截图(Android get screenshot of

View v = rootView.findViewById(R.id.layout1);
if (v != null) {
    v.buildDrawingCache();
    Bitmap bitmap = v.getDrawingCache();
    canvas.drawBitmap(bitmap, dummyMatrix, null);
    v.destroyDrawingCache();   
}

我有这样的代码。 但我需要截图都是我的ListView的项目，但如果我的ListView的在屏幕上比可见光更多的项目，这个代码不捕获时的项目比可见矩形大。

如何正确捕获我的ListView？

新工作的代码我创建的

public static Bitmap getWholeListViewItemsToBitmap() {

    ListView listview    = MyActivity.mFocusedListView;
    ListAdapter adapter  = listview.getAdapter(); 
    int itemscount       = adapter.getCount();
    int allitemsheight   = 0;
    List<Bitmap> bmps    = new ArrayList<Bitmap>();

    for (int i = 0; i < itemscount; i++) {

        View childView      = adapter.getView(i, null, listview);
        childView.measure(MeasureSpec.makeMeasureSpec(listview.getWidth(), MeasureSpec.EXACTLY), 
                MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));

        childView.layout(0, 0, childView.getMeasuredWidth(), childView.getMeasuredHeight());
        childView.setDrawingCacheEnabled(true);
        childView.buildDrawingCache();
        bmps.add(childView.getDrawingCache());
        allitemsheight+=childView.getMeasuredHeight();
    }

    Bitmap bigbitmap    = Bitmap.createBitmap(listview.getMeasuredWidth(), allitemsheight, Bitmap.Config.ARGB_8888);
    Canvas bigcanvas    = new Canvas(bigbitmap);

    Paint paint = new Paint();
    int iHeight = 0;

    for (int i = 0; i < bmps.size(); i++) {
        Bitmap bmp = bmps.get(i);
        bigcanvas.drawBitmap(bmp, 0, iHeight, paint);
        iHeight+=bmp.getHeight();

        bmp.recycle();
        bmp=null;
    }


    return bigbitmap;
}

Answer 1:

工作代码：

public static Bitmap getWholeListViewItemsToBitmap() {

    ListView listview    = MyActivity.mFocusedListView;
    ListAdapter adapter  = listview.getAdapter(); 
    int itemscount       = adapter.getCount();
    int allitemsheight   = 0;
    List<Bitmap> bmps    = new ArrayList<Bitmap>();

    for (int i = 0; i < itemscount; i++) {

        View childView      = adapter.getView(i, null, listview);
        childView.measure(MeasureSpec.makeMeasureSpec(listview.getWidth(), MeasureSpec.EXACTLY), 
                MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));

        childView.layout(0, 0, childView.getMeasuredWidth(), childView.getMeasuredHeight());
        childView.setDrawingCacheEnabled(true);
        childView.buildDrawingCache();
        bmps.add(childView.getDrawingCache());
        allitemsheight+=childView.getMeasuredHeight();
    }

    Bitmap bigbitmap    = Bitmap.createBitmap(listview.getMeasuredWidth(), allitemsheight, Bitmap.Config.ARGB_8888);
    Canvas bigcanvas    = new Canvas(bigbitmap);

    Paint paint = new Paint();
    int iHeight = 0;

    for (int i = 0; i < bmps.size(); i++) {
        Bitmap bmp = bmps.get(i);
        bigcanvas.drawBitmap(bmp, 0, iHeight, paint);
        iHeight+=bmp.getHeight();

        bmp.recycle();
        bmp=null;
    }


    return bigbitmap;
}

Answer 2:

虽然不可能让还未呈现内容的截图（如关闭屏幕项目的ListView的），你可以做一个多屏，滚动每个镜头之间的内容，然后再加入图像。 这里是一个工具，它可以为你自动完成： https://github.com/PGSSoft/scrollscreenshot

免责声明：我是这个工具的作者，它是由出版我的雇主 。 功能要求的欢迎。

Answer 3:

使用此功能，让您的列表视图的位图

public Bitmap getBitmapFromView(View view) {

Bitmap returnedBitmap = Bitmap.createBitmap(view.getMeasuredWidth(),
              view.getMeasuredHeight() , Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(returnedBitmap);
Drawable bgDrawable = view.getBackground();
if (bgDrawable != null)
    bgDrawable.draw(canvas);
else
    canvas.drawColor(Color.WHITE);
view.draw(canvas);
        return returnedBitmap;
}

以此为

Bitmap b = getBitmapFromView(your listview object here);

并且只要你想使用此位图

希望帮助..

Answer 4:

如果您生成位图具有黑色的背景。 这是因为您查看无法提取从XML文件中的颜色。 因此请设置视图的颜色

View v = adapter.getView(i, null, listview);
            v.measure(View.MeasureSpec.makeMeasureSpec(listview.getWidth(), View.MeasureSpec.EXACTLY),
                    View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
            v.layout(0, 0, v.getMeasuredWidth(), v.getMeasuredHeight());
            v.setDrawingCacheEnabled(true);
            v.buildDrawingCache(true);
            v.setBackgroundColor(Color.parseColor("#F08080"));
            bmps.add(v.getDrawingCache(true));
            allitemsheight += v.getMeasuredHeight();

文章来源: Android get screenshot of all ListView items