C#, Android: Create bitmap with single color

I want to create a bitmap that is filled with only one color (#eeeeee).
I managed to create a bitmap and set it to its viewholder but I cannot seem to find the right way to fill it entierely with my desired color. The output is always only a white rectangle. But it needs to be greyish as in #eeeeee. This is my effort:

            Bitmap greyBitmap = Bitmap.CreateBitmap(1000, 500, Bitmap.Config.Argb8888);

            Bitmap mutableBitmap = greyBitmap.Copy(Bitmap.Config.Argb8888, true);//&lt;–true makes copy mutable

            Canvas canvas = new Canvas(mutableBitmap);

            Paint paint = new Paint();

            paint.Color = new Color(Color.ParseColor("#eeeeee"));

            canvas.DrawRect(1000, 500, 1000, 500, paint);

            vh.dr = new BitmapDrawable(mutableBitmap);

Chances are, I am taking too many steps... Feel free to correct me on this.

edited Nov 23 '18 at 10:42

Aniruddh Parihar

2,18911027

asked Nov 23 '18 at 10:41

Innomotion Media

266

1

The coordinates you have in DrawRect() are off. The first two should be 0, 0. Anyway, there's a much simpler way to do that. Just call eraseColor() with your color value on the mutable Bitmap.

– Mike M.
Nov 23 '18 at 10:47

oh yesm thanks that did the trick. however, would you mind posting both remarks as an answer that i could accept? thank you!

– Innomotion Media
Nov 23 '18 at 10:51

1

Oh, I'm good. Just a couple simple suggestions. :-) Please feel free to post your own answer. This would be a handy duplicate target in the future for users asking specifically for C# code. Btw, I just double checked, and that particular Bitmap.CreateBitmap() overload returns a mutable Bitmap already, so there's no need to copy it first. You can do the whole thing in two lines. Anyhoo, thanks for the offer. I appreciate it. Glad you got it working. Cheers!

– Mike M.
Nov 23 '18 at 11:14

your wish shall be my command ;)

– Innomotion Media
Nov 23 '18 at 11:18

add a comment |

            Bitmap greyBitmap = Bitmap.CreateBitmap(1000, 500, Bitmap.Config.Argb8888);

            Bitmap mutableBitmap = greyBitmap.Copy(Bitmap.Config.Argb8888, true);//&lt;–true makes copy mutable

            Canvas canvas = new Canvas(mutableBitmap);

            Paint paint = new Paint();

            paint.Color = new Color(Color.ParseColor("#eeeeee"));

            canvas.DrawRect(1000, 500, 1000, 500, paint);

            vh.dr = new BitmapDrawable(mutableBitmap);

Chances are, I am taking too many steps... Feel free to correct me on this.

edited Nov 23 '18 at 10:42

Aniruddh Parihar

2,18911027

asked Nov 23 '18 at 10:41

Innomotion Media

266

1

The coordinates you have in DrawRect() are off. The first two should be 0, 0. Anyway, there's a much simpler way to do that. Just call eraseColor() with your color value on the mutable Bitmap.

– Mike M.
Nov 23 '18 at 10:47

oh yesm thanks that did the trick. however, would you mind posting both remarks as an answer that i could accept? thank you!

– Innomotion Media
Nov 23 '18 at 10:51

1

Oh, I'm good. Just a couple simple suggestions. :-) Please feel free to post your own answer. This would be a handy duplicate target in the future for users asking specifically for C# code. Btw, I just double checked, and that particular Bitmap.CreateBitmap() overload returns a mutable Bitmap already, so there's no need to copy it first. You can do the whole thing in two lines. Anyhoo, thanks for the offer. I appreciate it. Glad you got it working. Cheers!

– Mike M.
Nov 23 '18 at 11:14

your wish shall be my command ;)

– Innomotion Media
Nov 23 '18 at 11:18

add a comment |

            Bitmap greyBitmap = Bitmap.CreateBitmap(1000, 500, Bitmap.Config.Argb8888);

            Bitmap mutableBitmap = greyBitmap.Copy(Bitmap.Config.Argb8888, true);//&lt;–true makes copy mutable

            Canvas canvas = new Canvas(mutableBitmap);

            Paint paint = new Paint();

            paint.Color = new Color(Color.ParseColor("#eeeeee"));

            canvas.DrawRect(1000, 500, 1000, 500, paint);

            vh.dr = new BitmapDrawable(mutableBitmap);

Chances are, I am taking too many steps... Feel free to correct me on this.

edited Nov 23 '18 at 10:42

Aniruddh Parihar

2,18911027

asked Nov 23 '18 at 10:41

Innomotion Media

266

            Bitmap greyBitmap = Bitmap.CreateBitmap(1000, 500, Bitmap.Config.Argb8888);

            Bitmap mutableBitmap = greyBitmap.Copy(Bitmap.Config.Argb8888, true);//&lt;–true makes copy mutable

            Canvas canvas = new Canvas(mutableBitmap);

            Paint paint = new Paint();

            paint.Color = new Color(Color.ParseColor("#eeeeee"));

            canvas.DrawRect(1000, 500, 1000, 500, paint);

            vh.dr = new BitmapDrawable(mutableBitmap);

Chances are, I am taking too many steps... Feel free to correct me on this.

c# android

edited Nov 23 '18 at 10:42

Aniruddh Parihar

2,18911027

asked Nov 23 '18 at 10:41

Innomotion Media

266

edited Nov 23 '18 at 10:42

Aniruddh Parihar

2,18911027

asked Nov 23 '18 at 10:41

Innomotion Media

266

edited Nov 23 '18 at 10:42

Aniruddh Parihar

2,18911027

edited Nov 23 '18 at 10:42

Aniruddh Parihar

2,18911027

edited Nov 23 '18 at 10:42

Aniruddh Parihar

2,18911027

asked Nov 23 '18 at 10:41

Innomotion Media

266

asked Nov 23 '18 at 10:41

Innomotion Media

266

asked Nov 23 '18 at 10:41

Innomotion Media

266

1

The coordinates you have in DrawRect() are off. The first two should be 0, 0. Anyway, there's a much simpler way to do that. Just call eraseColor() with your color value on the mutable Bitmap.

– Mike M.
Nov 23 '18 at 10:47

oh yesm thanks that did the trick. however, would you mind posting both remarks as an answer that i could accept? thank you!

– Innomotion Media
Nov 23 '18 at 10:51

1

Oh, I'm good. Just a couple simple suggestions. :-) Please feel free to post your own answer. This would be a handy duplicate target in the future for users asking specifically for C# code. Btw, I just double checked, and that particular Bitmap.CreateBitmap() overload returns a mutable Bitmap already, so there's no need to copy it first. You can do the whole thing in two lines. Anyhoo, thanks for the offer. I appreciate it. Glad you got it working. Cheers!

– Mike M.
Nov 23 '18 at 11:14

your wish shall be my command ;)

– Innomotion Media
Nov 23 '18 at 11:18

add a comment |

1

The coordinates you have in DrawRect() are off. The first two should be 0, 0. Anyway, there's a much simpler way to do that. Just call eraseColor() with your color value on the mutable Bitmap.

– Mike M.
Nov 23 '18 at 10:47

oh yesm thanks that did the trick. however, would you mind posting both remarks as an answer that i could accept? thank you!

– Innomotion Media
Nov 23 '18 at 10:51

1

Oh, I'm good. Just a couple simple suggestions. :-) Please feel free to post your own answer. This would be a handy duplicate target in the future for users asking specifically for C# code. Btw, I just double checked, and that particular Bitmap.CreateBitmap() overload returns a mutable Bitmap already, so there's no need to copy it first. You can do the whole thing in two lines. Anyhoo, thanks for the offer. I appreciate it. Glad you got it working. Cheers!

– Mike M.
Nov 23 '18 at 11:14

your wish shall be my command ;)

– Innomotion Media
Nov 23 '18 at 11:18

The coordinates you have in DrawRect() are off. The first two should be 0, 0. Anyway, there's a much simpler way to do that. Just call eraseColor() with your color value on the mutable Bitmap.

– Mike M.
Nov 23 '18 at 10:47

oh yesm thanks that did the trick. however, would you mind posting both remarks as an answer that i could accept? thank you!

– Innomotion Media
Nov 23 '18 at 10:51

Oh, I'm good. Just a couple simple suggestions. :-) Please feel free to post your own answer. This would be a handy duplicate target in the future for users asking specifically for C# code. Btw, I just double checked, and that particular Bitmap.CreateBitmap() overload returns a mutable Bitmap already, so there's no need to copy it first. You can do the whole thing in two lines. Anyhoo, thanks for the offer. I appreciate it. Glad you got it working. Cheers!

– Mike M.
Nov 23 '18 at 11:14

your wish shall be my command ;)

– Innomotion Media
Nov 23 '18 at 11:18

add a comment |

1 Answer
1

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oldest

votes

With the fantastic help of Mike M.

        Bitmap greyBitmap = Bitmap.CreateBitmap(1000, 500, Bitmap.Config.Argb8888);

        Canvas canvas = new Canvas(greyBitmap );

        Paint paint = new Paint();

        paint.Color = new Color(Color.ParseColor("#eeeeee")); // set any color here 

        canvas.DrawRect(0, 0, 1000, 500, paint);

        vh.dr = new BitmapDrawable(greyBitmap );

answered Nov 23 '18 at 11:19

Innomotion Media

266

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

With the fantastic help of Mike M.

        Bitmap greyBitmap = Bitmap.CreateBitmap(1000, 500, Bitmap.Config.Argb8888);

        Canvas canvas = new Canvas(greyBitmap );

        Paint paint = new Paint();

        paint.Color = new Color(Color.ParseColor("#eeeeee")); // set any color here 

        canvas.DrawRect(0, 0, 1000, 500, paint);

        vh.dr = new BitmapDrawable(greyBitmap );

answered Nov 23 '18 at 11:19

Innomotion Media

266

add a comment |

With the fantastic help of Mike M.

        Bitmap greyBitmap = Bitmap.CreateBitmap(1000, 500, Bitmap.Config.Argb8888);

        Canvas canvas = new Canvas(greyBitmap );

        Paint paint = new Paint();

        paint.Color = new Color(Color.ParseColor("#eeeeee")); // set any color here 

        canvas.DrawRect(0, 0, 1000, 500, paint);

        vh.dr = new BitmapDrawable(greyBitmap );

answered Nov 23 '18 at 11:19

Innomotion Media

266

add a comment |

With the fantastic help of Mike M.

        Bitmap greyBitmap = Bitmap.CreateBitmap(1000, 500, Bitmap.Config.Argb8888);

        Canvas canvas = new Canvas(greyBitmap );

        Paint paint = new Paint();

        paint.Color = new Color(Color.ParseColor("#eeeeee")); // set any color here 

        canvas.DrawRect(0, 0, 1000, 500, paint);

        vh.dr = new BitmapDrawable(greyBitmap );

answered Nov 23 '18 at 11:19

Innomotion Media

266

With the fantastic help of Mike M.

        Bitmap greyBitmap = Bitmap.CreateBitmap(1000, 500, Bitmap.Config.Argb8888);

        Canvas canvas = new Canvas(greyBitmap );

        Paint paint = new Paint();

        paint.Color = new Color(Color.ParseColor("#eeeeee")); // set any color here 

        canvas.DrawRect(0, 0, 1000, 500, paint);

        vh.dr = new BitmapDrawable(greyBitmap );

answered Nov 23 '18 at 11:19

Innomotion Media

266

answered Nov 23 '18 at 11:19

Innomotion Media

266

answered Nov 23 '18 at 11:19

Innomotion Media

266

answered Nov 23 '18 at 11:19

Innomotion Media

266

add a comment |

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