本文整理汇总了C#中Android.Graphics.Bitmap.Recycle方法的典型用法代码示例。如果您正苦于以下问题：C# Bitmap.Recycle方法的具体用法？C# Bitmap.Recycle怎么用？C# Bitmap.Recycle使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Android.Graphics.Bitmap的用法示例。
在下文中一共展示了Bitmap.Recycle方法的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Transform
public Bitmap Transform(Bitmap source)
{
int size = Math.Min(source.Width, source.Height);
int width = (source.Width - size) / 2;
int height = (source.Height - size) / 2;
var bitmap = Bitmap.CreateBitmap(size, size, Bitmap.Config.Argb4444);
var canvas = new Canvas(bitmap);
var paint = new Paint();
var shader =
new BitmapShader(source, BitmapShader.TileMode.Clamp, BitmapShader.TileMode.Clamp);
if (width != 0 || height != 0)
{
// source isn't square, move viewport to center
var matrix = new Matrix();
matrix.SetTranslate(-width, -height);
shader.SetLocalMatrix(matrix);
}
paint.SetShader(shader);
paint.AntiAlias = true;
float r = size / 2f;
canvas.DrawCircle(r, r, r, paint);
source.Recycle();
return bitmap;
}示例2: Transform
protected override Bitmap Transform(IBitmapPool bitmapPool, Bitmap source, int outWidth, int outHeight)
{
int size = Math.Min(source.Width, source.Height);
int width = (source.Width - size) / 2;
int height = (source.Height - size) / 2;
Bitmap squaredBitmap = Bitmap.CreateBitmap(source, width, height, size, size);
if (squaredBitmap != source)
{
source.Recycle();
}
Bitmap bitmap = Bitmap.CreateBitmap(size, size, Bitmap.Config.Argb8888);
Canvas canvas = new Canvas(bitmap);
Paint paint = new Paint();
BitmapShader shader = new BitmapShader(squaredBitmap, BitmapShader.TileMode.Clamp,
BitmapShader.TileMode.Clamp);
paint.SetShader(shader);
paint.AntiAlias = true;
float r = size / 2f;
canvas.DrawCircle(r, r, r, paint);
squaredBitmap.Recycle();
return BitmapResource.Obtain(bitmap, bitmapPool).Get();
}示例3: rotateImage
// Rotates the bitmap by the specified degree.
// If a new bitmap is created, the original bitmap is recycled.
internal static Bitmap rotateImage(Bitmap b, int degrees)
{
if (degrees != 0 && b != null)
{
Matrix m = new Matrix();
m.SetRotate(degrees,
(float)b.Width / 2, (float)b.Height / 2);
try
{
Bitmap b2 = Bitmap.CreateBitmap(
b, 0, 0, b.Width, b.Height, m, true);
if (b != b2)
{
b.Recycle();
b = b2;
}
}
catch (Java.Lang.OutOfMemoryError)
{
// We have no memory to rotate. Return the original bitmap.
}
}
return b;
}示例4: Recycle
public static void Recycle(Bitmap bitmap)
{
if (bitmap != null && !bitmap.IsRecycled)
{
bitmap.Recycle();
System.GC.Collect();
}
}示例5: DisposeBitmap
private static void DisposeBitmap(Bitmap bitmap)
{
if (bitmap != null)
{
if (!bitmap.IsRecycled)
{
bitmap.Recycle();
}
bitmap.Dispose();
}
}示例6: Transform
public Bitmap Transform (Bitmap bitmap)
{
int size = Math.Min(bitmap.Width, bitmap.Height);
int x = (bitmap.Width - size) / 2;
int y = (bitmap.Height - size) / 2;
Bitmap result = Bitmap.CreateBitmap(bitmap, x, y, size, size);
if (result != bitmap) {
bitmap.Recycle();
}
return result;
}示例7: Transform
public Bitmap Transform(Bitmap source)
{
int size = Math.Min(source.Width / 3, source.Height);
int x = (source.Width - size) / 3;
int y = (source.Height - size) / 2;
Bitmap result = Bitmap.CreateBitmap(source, x, y, size, size);
if (result != source) {
source.Recycle();
}
return result;
}示例8: Transform
protected override Bitmap Transform(Bitmap source)
{
int width = source.Width;
int height = source.Height;
Bitmap bitmap = Bitmap.CreateBitmap(width, height, Bitmap.Config.Argb8888);
Canvas canvas = new Canvas(bitmap);
Paint paint = new Paint();
paint.AntiAlias = true;
paint.SetShader(new BitmapShader(source, Shader.TileMode.Clamp, Shader.TileMode.Clamp));
canvas.DrawRoundRect(new RectF(margin, margin, width - margin, height - margin), radius, radius, paint);
source.Recycle();
return bitmap;
}示例9: Transform
protected override Bitmap Transform(Bitmap source)
{
int width = source.Width;
int height = source.Height;
Bitmap bitmap = Bitmap.CreateBitmap(width, height, Bitmap.Config.Argb8888);
Canvas canvas = new Canvas(bitmap);
Paint paint = new Paint();
paint.AntiAlias = true;
paint.SetColorFilter(new PorterDuffColorFilter(mColor, PorterDuff.Mode.SrcAtop));
canvas.DrawBitmap(source, 0, 0, paint);
source.Recycle();
return bitmap;
}示例10: Transform
protected override Bitmap Transform(Bitmap source)
{
int width = source.Width;
int height = source.Height;
Bitmap bitmap = Bitmap.CreateBitmap(width, height, Bitmap.Config.Argb8888);
Canvas canvas = new Canvas(bitmap);
ColorMatrix saturation = new ColorMatrix();
saturation.SetSaturation(0f);
Paint paint = new Paint();
paint.SetColorFilter(new ColorMatrixColorFilter(saturation));
canvas.DrawBitmap(source, 0, 0, paint);
source.Recycle();
return bitmap;
}示例11: Transform
public Bitmap Transform(Bitmap source)
{
Bitmap result = Bitmap.CreateBitmap(source.Width, source.Height, source.GetConfig());
Bitmap noise;
try
{
noise = picasso.Load(Resource.Drawable.noise).Get();
}
catch (Exception)
{
throw new Exception("Failed to apply transformation! Missing resource.");
}
BitmapShader shader = new BitmapShader(noise, Shader.TileMode.Repeat, Shader.TileMode.Repeat);
ColorMatrix colorMatrix = new ColorMatrix();
colorMatrix.SetSaturation(0);
ColorMatrixColorFilter filter = new ColorMatrixColorFilter(colorMatrix);
Paint paint = new Paint(PaintFlags.AntiAlias);
paint.SetColorFilter(filter);
Canvas canvas = new Canvas(result);
canvas.DrawBitmap(source, 0, 0, paint);
paint.SetColorFilter(null);
paint.SetShader(shader);
paint.SetXfermode(new PorterDuffXfermode(PorterDuff.Mode.Multiply));
canvas.DrawRect(0, 0, canvas.Width, canvas.Height, paint);
source.Recycle();
noise.Recycle();
return result;
}示例12: DismissBitmap
private void DismissBitmap(Bitmap bitmap)
{
if (bitmap != null)
{
bitmap.Recycle();
bitmap.Dispose();
GC.Collect();
}
}示例13: InitWithBitmap
public void InitWithBitmap(Bitmap imageSource, ALL11 filter)
{
//TODO: Android.Opengl.GLUtils.GetInternalFormat()
_format = SurfaceFormat.Color;
if (imageSource.HasAlpha)
_format = SurfaceFormat.Color;
if (GraphicsDevice.OpenGLESVersion == OpenTK.Graphics.GLContextVersion.Gles2_0)
{
_width = imageSource.Width;
_height = imageSource.Height;
}
else
{
// scale up bitmap to be power of 2 dimensions but dont exceed 1024x1024.
// Note: may not have to do this with OpenGL 2+
_width = (int)Math.Pow(2, Math.Min(10, Math.Ceiling(Math.Log10(imageSource.Width) / Math.Log10(2))));
_height = (int)Math.Pow(2, Math.Min(10, Math.Ceiling(Math.Log10(imageSource.Height) / Math.Log10(2))));
}
_size.Width = _width;
_size.Height = _height;
using (Bitmap imagePadded = Bitmap.CreateBitmap(_width, _height, Bitmap.Config.Argb8888))
{
Canvas can = new Canvas(imagePadded);
can.DrawARGB(0, 0, 0, 0);
can.DrawBitmap(imageSource, 0, 0, null);
if (GraphicsDevice.OpenGLESVersion == OpenTK.Graphics.GLContextVersion.Gles2_0)
{
GL11.GenTextures(1, ref _name);
GL11.BindTexture(ALL11.Texture2D, _name);
GL11.TexParameter(ALL11.Texture2D, ALL11.TextureMinFilter, (int)filter);
GL11.TexParameter(ALL11.Texture2D, ALL11.TextureMagFilter, (int)filter);
Android.Opengl.GLUtils.TexImage2D((int)ALL11.Texture2D, 0, imagePadded, 0);
// free bitmap
imageSource.Recycle();
// error checking
int errAndroidGL = Android.Opengl.GLES20.GlGetError();
ALL20 errGenericGL = GL20.GetError();
if (errAndroidGL != Android.Opengl.GLES20.GlNoError || errGenericGL != ALL20.NoError)
Console.WriteLine(string.Format("OpenGL ES 2.0:\n\tAndroid error: {0,10:X}\n\tGeneric error: {1, 10:X}", errAndroidGL, errGenericGL));
}
else
{
GL20.GenTextures(1, ref _name);
GL20.BindTexture(ALL20.Texture2D, _name);
GL20.TexParameter(ALL20.Texture2D, ALL20.TextureMinFilter, (int)filter);
GL20.TexParameter(ALL20.Texture2D, ALL20.TextureMagFilter, (int)filter);
Android.Opengl.GLUtils.TexImage2D((int)ALL20.Texture2D, 0, imagePadded, 0);
}
}
_maxS = _size.Width / (float)_width;
_maxT = _size.Height / (float)_height;
}示例14: OnDraw
protected override void OnDraw(Android.Graphics.Canvas canvas)
{
if (mixerValue == null) // don't do anything if we're not connected to a mixervalue
return;
if (bmp == null) {
bmp = BitmapFactory.DecodeResource (Resources, Resource.Drawable.Fader_Knob);
Bitmap scaled = Bitmap.CreateScaledBitmap (bmp, 25, 55, true);
bmp.Recycle();
bmp = scaled;
}
int margin = 60;
float radius = 4;
int center = (Width / 2) + 5;
int minY1 = margin - (bmp.Height / 2);
int maxY1 = Height - margin - (bmp.Height / 2);
rangeY = maxY1 - minY1;
float factor = (float)mixerValue.GetValue() / (float)maxValue;
bitmapX1 = center - bmp.Width / 2;
bitmapY1 = maxY1 - (int)(factor * (float)rangeY);
base.OnDraw (canvas);
var paint = new Paint ();
paint.Color = Color.White;
paint.TextAlign = Paint.Align.Center;
paint.TextSize = (float)12.0;
paint.SetTypeface(Typeface.DefaultBold);
if (channel_name != null)
canvas.DrawText (channel_name, center - 5, 14, paint); // align with pan control
int levelX1 = center - (bmp.Width / 2) - 2;
int levelX2 = center + (bmp.Width / 2);
paint.TextSize = (float)10.0;
paint.TextAlign = Paint.Align.Right;
foreach (var level in faderLevels) {
float factorLevel = (float)level.Key / (float)maxValue;
int levelY = maxY1 - (int)(factorLevel * (float)rangeY) + (bmp.Height / 2);
canvas.DrawRect (levelX1, levelY - 1, levelX2, levelY, paint);
canvas.DrawText (level.Value, levelX1 - 4, levelY + 3, paint);
}
paint.Color = Color.DarkGray;
RectF rect = new RectF (center - 2, margin, center + 2, Height - margin);
canvas.DrawRoundRect(rect, radius, radius, paint);
paint.Color = Color.Black;
rect = new RectF (center - 1, margin + 1, center + 1, Height - margin - 1);
canvas.DrawRoundRect(rect, radius, radius, paint);
bitmapX2 = bitmapX1 + bmp.Width;
bitmapY2 = bitmapY1 + bmp.Height;
if (isActive) {
paint.Alpha = 255;
} else {
paint.Alpha = 180;
}
canvas.DrawBitmap (bmp, bitmapX1, bitmapY1, paint);
//bmp.Recycle ();
}示例15: SaveOutput
/// <summary>
/// Saves the cropped image
/// </summary>
/// <param name="croppedImage">the cropped image</param>
/// <param name="saveUri"> the uri to save the cropped image to</param>
internal void SaveOutput(Bitmap croppedImage, Android.Net.Uri saveUri)
{
if (saveUri == null)
{
Log.Error(this.GetType().Name, "invalid image url");
return;
}
using (var outputStream = context.ContentResolver.OpenOutputStream(saveUri))
{
if (outputStream != null)
{
croppedImage.Compress(outputFormat, 75, outputStream);
}
}
croppedImage.Recycle();
}