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增加生成倒影图片方法

This commit is contained in:
zengfantian 2015-01-27 16:04:36 +08:00
parent d0a24e3096
commit 6a1f86561b
1 changed files with 33 additions and 0 deletions
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33
src/com/zftlive/android/tools/ToolPicture.java
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@ -14,6 +14,7 @@ import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.ColorMatrix;
import android.graphics.ColorMatrixColorFilter;
import android.graphics.LinearGradient;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.PixelFormat;
@ -21,6 +22,7 @@ import android.graphics.PorterDuff.Mode;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.Shader.TileMode;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.NinePatchDrawable;
@ -352,6 +354,37 @@ public class ToolPicture {
return newbm;
}
/**
* 获得倒影的图片
* @param bitmap 原始图片
* @return 带倒影的图片
*/
public static Bitmap makeReflectionImage(Bitmap bitmap){
final int reflectionGap = 4;
int width = bitmap.getWidth();
int height = bitmap.getHeight();
Matrix matrix = new Matrix();
matrix.preScale(1, -1);
Bitmap reflectionImage = Bitmap.createBitmap(bitmap, 0, height/2, width, height/2, matrix, false);
Bitmap bitmapWithReflection = Bitmap.createBitmap(width, (height + height/2), Config.ARGB_8888);
Paint deafalutPaint = new Paint();
Canvas canvas = new Canvas(bitmapWithReflection);
canvas.drawBitmap(bitmap, 0, 0, null);
canvas.drawRect(0, height,width,height + reflectionGap, deafalutPaint);
canvas.drawBitmap(reflectionImage, 0, height + reflectionGap, null);
Paint paint = new Paint();
LinearGradient shader = new LinearGradient(0,bitmap.getHeight(),0,bitmapWithReflection.getHeight()+reflectionGap,0x70ffffff,0x00ffffff,TileMode.CLAMP);
paint.setShader(shader);
paint.setXfermode(new PorterDuffXfermode(Mode.DST_IN));
canvas.drawRect(0,height,width,bitmapWithReflection.getHeight()+reflectionGap,paint);
return bitmapWithReflection;
}
/**
* 获取验证码图片
* @param width 验证码宽度