/**
* Returns a bitmap showing a screenshot of the view passed in.
*/
//@NonNull
public static Bitmap getBitmapFromView(View v)
{
Bitmap bitmap = Bitmap.CreateBitmap(v.MeasuredWidth, v.MeasuredHeight, Bitmap.Config.Argb8888);
Canvas canvas = new Canvas(bitmap);
v.Draw(canvas);
return bitmap;
}
public static Bitmap ToBitmap(this AView view)
{
var layout = new FrameLayout(view.Context);
layout.LayoutParameters = new FrameLayout.LayoutParams(500, 500);
view.LayoutParameters = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.WrapContent, FrameLayout.LayoutParams.WrapContent)
{
Gravity = GravityFlags.Center
};
layout.AddView(view);
layout.Measure(500, 500);
layout.Layout(0, 0, 500, 500);
var act = view.Context.GetActivity();
var rootView = act.FindViewById <FrameLayout>(Android.Resource.Id.Content);
rootView.AddView(layout);
var bitmap = Bitmap.CreateBitmap(view.Width, view.Height, Bitmap.Config.Argb8888);
Canvas canvas = new Canvas(bitmap);
view.Layout(0, 0, view.Width, view.Height);
view.Draw(canvas);
rootView.RemoveView(layout);
return(bitmap);
}
public static Bitmap LoadBitmapFromView(Android.Views.View v)
{
Bitmap b = Bitmap.CreateBitmap(v.Width, v.Height, Bitmap.Config.Argb8888);
Canvas c = new Canvas(b);
v.Layout(0, 0, v.Width, v.Height);
v.Draw(c);
return(b);
}
private Bitmap ConvertViewToBitMap(Android.Views.View view)
{
Bitmap bitmap = Bitmap.CreateBitmap((int)view.Width, (int)view.Height, Bitmap.Config.Argb8888);
Canvas canvas = new Canvas(bitmap);
canvas.DrawColor(Android.Graphics.Color.White);
view.Draw(canvas);
return(bitmap);
}
public static Bitmap LoadBitmapFromView(View v)
{
var b = Bitmap.CreateBitmap(v.Width, v.Height, Bitmap.Config.Argb8888);
var c = new Canvas(b);
v.Layout(0, 0, v.LayoutParameters.Width, v.LayoutParameters.Height);
v.Draw(c);
return(b);
}
public static Task <Bitmap> ToBitmap(this AView view) =>
view.AttachAndRun(() =>
{
var bitmap = Bitmap.CreateBitmap(view.Width, view.Height, Bitmap.Config.Argb8888);
using (var canvas = new Canvas(bitmap))
{
view.Draw(canvas);
}
return(bitmap);
});
public Bitmap LayoutToBitmap(Android.Views.View markerLayout)
{
markerLayout.Measure(Android.Views.View.MeasureSpec.MakeMeasureSpec(0, MeasureSpecMode.Unspecified), Android.Views.View.MeasureSpec.MakeMeasureSpec(0, MeasureSpecMode.Unspecified));
markerLayout.Layout(0, 0, markerLayout.MeasuredWidth, markerLayout.MeasuredHeight);
Bitmap bitmap = Bitmap.CreateBitmap(markerLayout.MeasuredWidth, markerLayout.MeasuredHeight, Bitmap.Config.Argb8888);
Canvas canvas = new Canvas(bitmap);
markerLayout.Draw(canvas);
return(bitmap);
}
public static Android.Graphics.Bitmap ToBitmap(this Android.Views.View view)
{
var bitmap = Bitmap.CreateBitmap(view.Width, view.Height, Bitmap.Config.Argb8888);
using (var c = new Canvas(bitmap))
{
view.Draw(c);
}
return(bitmap);
}
public Drawable GetThumb(int progress)
{
((TextView)thumbView.FindViewById(Resource.Id.thumbText)).SetText(String.Format(control.ThumbTextFormat, progress), BufferType.Normal);
thumbView.Measure((int)MeasureSpecMode.Unspecified, (int)MeasureSpecMode.Unspecified);
Bitmap bitmap = Bitmap.CreateBitmap(thumbView.MeasuredWidth, thumbView.MeasuredHeight, Bitmap.Config.Argb8888);
Canvas canvas = new Canvas(bitmap);
thumbView.Layout(0, 0, thumbView.MeasuredWidth, thumbView.MeasuredHeight);
thumbView.Draw(canvas);
return(new BitmapDrawable(Resources, bitmap));
}
/// <summary>
/// Snaps the specified view.
/// </summary>
/// <param name="view">The view.</param>
/// <returns>The screenshot bitmap.</returns>
public static Bitmap Snap(View view)
{
Bitmap bitmap = null;
if (view != null)
{
view.ClearFocus();
bitmap = CreateBitmapSafely(view.Width, view.Height, Bitmap.Config.Argb8888, 1);
if (bitmap != null)
{
var canvas = new Canvas(bitmap);
view.Draw(canvas);
}
}
return bitmap;
}
public static Bitmap LoadBitmapFromView(Android.Views.View v)
{
if (v.MeasuredHeight <= 0)
{
v.Measure(50, 50);
Bitmap b = Bitmap.CreateBitmap(v.MeasuredWidth, v.MeasuredHeight, Bitmap.Config.Argb8888);
Canvas c = new Canvas(b);
v.Layout(0, 0, v.MeasuredWidth, v.MeasuredHeight);
v.Draw(c);
return(b);
}
return(null);
}
public Bitmap getBitmapFromView(Android.Views.View v)
{
v.RootView.Measure(
Android.Views.View.MeasureSpec.MakeMeasureSpec(v.LayoutParameters.Width, Android.Views.MeasureSpecMode.Exactly),
Android.Views.View.MeasureSpec.MakeMeasureSpec(v.LayoutParameters.Height, Android.Views.MeasureSpecMode.Exactly));
//v.Layout(0, 0, v.MeasuredWidth, v.MeasuredHeight);
var Width = v.Width;
var Height = v.Height;
Bitmap b = Bitmap.CreateBitmap(Width, Height, Bitmap.Config.Argb8888);
Canvas c = new Canvas(b);
v.Draw(c);
var top = 0;
while (b.GetPixel(0, top) != -10063246)
{
top++;
}
var bottom = Height - 1;
while (b.GetPixel(0, bottom) != -10063246)
{
bottom--;
}
var left = 0;
while (b.GetPixel(left, top) == -10063246)
{
left++;
}
var right = Resources.DisplayMetrics.WidthPixels - 1;
while (b.GetPixel(right, top) == -10063246)
{
right--;
}
var result = Bitmap.CreateBitmap(right - left + 1, bottom - top + 1, b.GetConfig());
new Canvas(result).DrawBitmap(b, new Rect(left, top, right, bottom), new Rect(0, 0, right - left + 1, bottom - top + 1), null);
return(result);
}
public static Bitmap ToBitmap(this AView view)
{
var layout = new FrameLayout(view.Context);
layout.LayoutParameters = new FrameLayout.LayoutParams(500, 500);
view.LayoutParameters = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.WrapContent, FrameLayout.LayoutParams.WrapContent)
{
Gravity = GravityFlags.Center
};
layout.AddView(view);
layout.Measure(500, 500);
layout.Layout(0, 0, 500, 500);
var bitmap = Bitmap.CreateBitmap(view.Width, view.Height, Bitmap.Config.Argb8888);
Canvas canvas = new Canvas(bitmap);
view.Layout(0, 0, view.Width, view.Height);
view.Draw(canvas);
return(bitmap);
}
private void draw(View view)
{
Canvas canvas;
try
{
canvas = _holder.LockCanvas();
}
catch (Exception e)
{
Log.Error(TAG, "Unable to lock canvas: " + e);
return;
}
if (canvas != null)
{
view.Draw(canvas);
_holder.UnlockCanvasAndPost(canvas);
}
}
