[html]
代码如下:
public static Bitmap getRoundedCornerBitmap(Bitmap bitmap, float roundPx) {
Bitmap output = Bitmap.createBitmap(bitmap.getWidth(),
bitmap.getHeight(), Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final int color = 0xff424242;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
final RectF rectF = new RectF(rect);
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
return output;
}
public boolean createReflectedImages() {
// 倒影图和原图之间的距离
final int reflectionGap = 4;
int index = 0;
for (GalleryWith3DData imageId : mImageIds) {
// 返回原图解码之后的bitmap对象
Bitmap originalImage = BitmapFactory.decodeResource(
mContext.getResources(), imageId.getInteger());
int width = originalImage.getWidth();
int height = originalImage.getHeight();
// 创建矩阵对象
Matrix matrix = new Matrix();
// 指定矩阵(x轴不变，y轴相反)
matrix.preScale(1, -1);
// 将矩阵应用到该原图之中，返回一个宽度不变，高度为原图1/2的倒影位图
Bitmap reflectionImage = Bitmap.createBitmap(originalImage, 0,
height / 2, width, height / 2, matrix, false);
// 创建一个宽度不变，高度为原图+倒影图高度的位图
Bitmap bitmapWithReflection = Bitmap.createBitmap(width,
&
nbsp; (height + height / 2), Config.ARGB_8888);
// 将上面创建的位图初始化到画布
Canvas canvas = new Canvas(bitmapWithReflection);
canvas.drawBitmap(getRoundedCornerBitmap(originalImage, 20), 0, 0,
null);
int len = imageId.getstr().length();
double lenWeght = len * 50 * 0.9;
int ban = width / 2;
int ban1 = (int) (lenWeght / 2);
int hua = ban - ban1;
if (imageId.getFlagRecommend()) {
canvas.rotate(30);
canvas.drawText(mStrRecommend, hua - 20, 150,
createPaint(Color.RED));
canvas.rotate(-30);
}
Paint deafaultPaint = new Paint();
deafaultPaint.setAntiAlias(false);
canvas.drawBitmap(getRoundedCornerBitmap(reflectionImage, 20), 0,
height + reflectionGap, null);
Paint paint = new Paint();
paint.setAntiAlias(false);
LinearGradient shader = new LinearGradient(0,
originalImage.getHeight(), 0,
bitmapWithReflection.getHeight() + reflectionGap,
0x70ffffff, 0x00ffffff, TileMode.MIRROR);
// 设置阴影
paint.setShader(shader);
paint.setXfermode(new PorterDuffXfermode(
android
.graphics.PorterDuff.Mode.DST_IN));
// 用已经定义好的画笔构建一个矩形阴影渐变效果
canvas.drawRect(0, height, width, bitmapWithReflection.getHeight() + reflectionGap, paint);
canvas.drawText(imageId.getstr(), hua, 430,
createPaint(Color.WHITE));
// 创建一个ImageView用来显示已经画好的bitmapWithReflection
ImageView imageView = new ImageView(mContext);
imageView.setImageBitmap(bitmapWithReflection);
// 设置imageView大小 ，也就是最终显示的图片大小
imageView.setLayoutParams(new GalleryWith3D.LayoutParams(150, 250));
// imageView.setScaleType(ScaleType.MATRIX);
mImages[index++] = imageView;
}
return true;
}
下面是效果图:
您可能感兴趣的文章:android显示TextView文字的倒影效果实现代码Android实现动态向Gallery中添加图片及倒影与3D效果示例Android中使用Matrix控制图形变换和制作倒影效果的方法Android编程滑动效果之倒影效果实现方法(附demo源码下载)Android应用开发之简易、大气音乐播放器实现专辑倒影效果Android 轻松实现图片倒影效果实例代码Android 图像处理(类型转换,比例缩放,倒影,圆角)的小例子Android 倒影算法的实现代码Android自定义TextView实现文字倾斜效果Android实现文字翻转动画的效果Android实现文字和图片混排(文字环绕图片)效果Android编程实现文字倒影效果的方法
